WO2022188751A1

WO2022188751A1 - Communication method and apparatus

Info

Publication number: WO2022188751A1
Application number: PCT/CN2022/079566
Authority: WO
Inventors: 孔繁华; 邝奕如; 徐海博; 薛丽霞
Original assignee: 华为技术有限公司
Priority date: 2021-03-12
Filing date: 2022-03-07
Publication date: 2022-09-15

Abstract

Provided are a communication method and apparatus, relating to the field of wireless communications. Extended discontinuous reception (eDRX) parameters in a radio resource control idle (RRC-idle) state and a radio resource control inactive (RRC-inactive) can be configured for a terminal, and a message of a network side device can be received according to the eDRX parameters, so that the delay for the terminal to receive a paging message of an access network device can be reduced, and the user experience is improved. The method comprises: acquiring first parameter information (S401); and sending second parameter information to a core network device (S402). The first parameter information is used for indicating the eDRX parameters, and the eDRX parameters are used for a first access network device to send a paging message in an eDRX mode. The second parameter information is used for indicating changed eDRX parameters, and the changed eDRX parameters are used for the first access network device to send, after sending the second parameter information, the paging message in the eDRX mode.

Description

Communication method and device

"This application claims the priority of a Chinese patent application with the application number 202110269593.1 and the invention titled "A Communication Method, Terminal and Network Equipment" filed with the State Intellectual Property Office on March 12, 2021, and March 31, 2021 The priority of the Chinese patent application with the application number 202110350309.3 and the invention titled "Communication Method and Device" filed with the State Intellectual Property Office on 202110350309.3, the entire contents of which are incorporated in this application by reference".

technical field

The present application relates to the field of wireless communication, and in particular, to a communication method and apparatus.

Background technique

In a communication system, in order to reduce power consumption, a terminal may adopt a discontinuous reception (discontinuous reception, DRX) mode to receive messages from a network-side device (eg, an access network device or a core network device). As shown in (a) of FIG. 1 , the terminal may be woken up once in each DRX cycle to receive messages from the network-side device, and in a sleep state at other times, neither receiving nor sending messages. In the DRX mode, the terminal is in a sleep state most of the time, so that the power consumption of the terminal can be reduced.

For enhanced machine type communication (enhanced machine type communication, eMTC) terminals, narrowband Internet of things (narrow band internet of things, NB-IoT) terminals and other terminals that require longer battery life, extended discontinuous reception (extended reception) can also be used. discontinuous reception (eDRX) mode receives messages from network-side devices to further reduce terminal power consumption and prolong battery life. Compared with the DRX mode, the terminal using the eDRX mode is in the sleep state for a longer time, consumes less power, and has a longer battery life.

Taking the eMTC terminal as an example, before receiving the message from the network side device, the eMTC terminal can receive the eDRX parameter 1 configured by the core network device and the eDRX parameter 2 configured by the access network device. Among them, eDRX parameter 1 can indicate that the eMTC terminal receives the message of the core network device in the radio resource control idle (radio resource control idle, RRC-idle) state and the radio resource control inactive (radio resource control inactive, RRC-inactive) state. The location of the paging time window (PTW). Subsequently, in the RRC-idle state, the eMTC terminal may receive the message of the core network device according to the eDRX parameter 1, which may be specifically shown in (b) of FIG. 1 . In each eDRX cycle, the eMTC terminal can be woken up at the position of the PTW according to the DRX cycle to receive messages from the core network device, and is in a sleep state at other times. Similarly, in the RRC-inactive state, the eMTC terminal can be woken up according to the DRX cycle at the position of the PTW in each eDRX cycle to receive messages from the core network device and the access network device. The eDRX parameter 2 may indicate the position of the paging occasion (PO) at which the eMTC terminal receives the message of the access network device in the RRC-inactive state. Subsequently, in the RRC-inactive state, the eMTC terminal may receive messages from the access network device outside the PTW in each eDRX cycle, for example, at the position of the PO. Specifically, it can be shown as (c) in FIG. 1 .

Currently, a new radio (NR) system introduces a new type of terminal, a reduced capability (REDCAP) terminal. Compared with legacy UEs, REDCAP terminals have reduced hardware capabilities. For example, the number of antennas, working bandwidth, and processing time of REDCAP terminals are lower than those of legacy UEs. However, REDCAP terminals offer longer battery life, less complexity and lower cost. In order to further reduce the power consumption of the REDCAP terminal and increase the battery life, it is proposed to apply eDRX to the scenario where the REDCAP terminal receives a paging message from a network-side device. However, in the RRC-inactive state, the situation in which the REDCAP terminal receives the paging message of the network-side device is different from that of the eMTC terminal. For example, in the RRC-inactive state, the REDCAP terminal can not only wake up at the PO position in each eDRX cycle to receive the paging message of the access network device, but also can wake up at the PTW in each eDRX cycle. It is periodically woken up to receive paging messages from the access network equipment. Therefore, the method of configuring eDRX parameters for eMTC terminals cannot be used to configure eDRX parameters for REDCAP terminals. Then, how to configure the eDRX parameters in the RRC-idle state and the RRC-inactive state for the REDCAP terminal is an urgent problem to be solved at present.

SUMMARY OF THE INVENTION

The present application provides a communication method and device, which can configure eDRX parameters in RRC-idle state and RRC-inactive state for a terminal, and receive messages from network-side devices according to the eDRX parameters, which can reduce the need for terminals to receive paging messages from access network devices delay and improve user experience.

To achieve the above object, the embodiments of the present application adopt the following technical solutions:

In a first aspect, an embodiment of the present application provides a communication method, which is applied to a first access network device. The method includes: acquiring first parameter information, where the first parameter information is used to indicate an eDRX parameter, and the eDRX parameter is used for the first The access network device uses the eDRX mode to send the paging message; sends second parameter information to the core network device, where the second parameter information is used to indicate the modified eDRX parameters, and the modified eDRX parameters are used for the first access network device to send After the second parameter information, the paging message is sent in the eDRX mode.

In the method provided by the above first aspect, the first access network device can change the eDRX parameters as needed, so that the terminal receives the paging message according to the changed eDRX parameters, thereby reducing the time when the terminal first receives the paging message of the access network device. to improve user experience. In addition, in this method, the first access network device and the core network device use the same eDRX parameters to send the paging message, which is easy to implement and has high feasibility.

In a possible implementation manner, when it is determined that the terminal enters the RRC-inactive state, the second parameter information is sent to the core network device. Based on the above method, when it is determined that the terminal enters the RRC-inactive state, the eDRX parameters are changed, so that the terminal can use the changed eDRX parameters to receive the paging message of the first access network device in the RRC-inactive state, which can reduce The delay for the terminal to receive the paging message of the first access network device improves user experience.

A possible implementation manner, the method further includes: according to the terminal capability information and/or the first condition information, determining whether to send the second parameter information to the core network device; wherein the terminal capability information is used to indicate at least one of the following information Item: whether the terminal supports eDRX, whether the terminal supports the RRC-inactive state, whether the terminal supports eDRX in the RRC-inactive state; the first condition information is used to indicate whether the eDRX period included in the first parameter information is greater than or equal to the first time length. Based on the above method, conditions for the first access network device to change the eDRX parameters are given.

In a possible implementation manner, the second parameter information is carried in the RRC inactive transition report. Based on the above method, the first access network device may send the second parameter information to the core network device through the RRC inactive transition report.

A possible implementation manner, obtaining the first parameter information includes: receiving the first parameter information from the core network device, where the first parameter information is carried in the initial context establishment request message, or carried in the core network assistance in the RRC-inactive state information. Based on the above method, the first parameter information may be obtained by the first access network device from the core network device.

In a possible implementation manner, the method further includes: sending the second parameter information to the terminal. Based on the above method, the first access network device may send the second parameter information to the terminal, so that the terminal receives the paging message according to the modified eDRX parameters.

In a possible implementation manner, the second parameter information is sent to the terminal through an RRC release message or an RRC connection reconfiguration message.

In a possible implementation manner, the method further includes: sending parameter information of the first eDRX to the second access network device, where the parameter information of the first eDRX includes the first parameter information or the second parameter information. Based on the above method, the first access network device can send the first parameter information or the second parameter information to the second access network device, so that after the terminal moves to the coverage of the second access network device in the RRC-inactive state, The second access network device may page the terminal according to the first parameter information or the second parameter information.

In a possible implementation manner, the parameter information of the first eDRX further includes at least one of a DRX cycle of the access network device configured by the first access network device and a terminal-specific DRX cycle. Based on the above method, the second access network device may determine the DRX cycle for the second access network device to page the terminal.

A possible implementation is to send the parameter information of the first eDRX to the access network device in the tracking area list of the first access network device, and the identifier of the second access network device is included in the tracking of the first access network device. in the list of regions. Based on the above method, the first access network device can send the first parameter information or the second parameter information to the access network device in the tracking area list of the first access network device, so that the access network device in the list can help paging the terminal.

In a possible implementation manner, the parameter information of the first eDRX is carried in the paging message of the access network device. Based on the above method, the first access network device may send the first parameter information or the second parameter information to the second access network device through a paging message of the access network device.

In a possible implementation manner, the first access network device includes a centralized unit and a distribution unit, and the first access network device obtains the first parameter information, including: the centralized unit obtains the first parameter information, and the method further includes: the centralized unit distributes the first parameter information. The unit sends parameter information of the second eDRX, where the parameter information of the second eDRX includes the first parameter information or the second parameter information. Based on the above method, under the architecture in which the first access network device is separated from the centralized unit and the distribution unit, after the centralized unit obtains the first parameter information or the second parameter information, it can send it to the distribution unit, so that the distribution unit can send the information to the distribution unit according to the first parameter information. or the second parameter information paging the terminal.

In a possible implementation manner, the parameter information of the second eDRX further includes the DRX cycle of the access network device configured by the centralized unit, and the terminal-specific DRX cycle. Based on the above method, the distribution unit can determine the DRX cycle for paging the terminal.

In a possible implementation manner, the parameter information of the second eDRX is carried in the paging message. Based on the above method, the centralized unit may send the first parameter information or the second parameter information to the distribution unit through a paging message.

In a second aspect, an embodiment of the present application provides a communication method, which is applied to a terminal. The method includes: acquiring first parameter information, where the first parameter information is used to indicate an extended discontinuous reception eDRX parameter, and the eDRX parameter is used by the terminal to adopt The eDRX mode receives the paging message; receives the second parameter information from the first access network device, the second parameter information is used to indicate the changed eDRX parameter, and the changed eDRX parameter is used after the terminal receives the second parameter information , using eDRX mode to receive paging messages.

Based on the method provided in the second aspect, the terminal receives the paging message according to the modified eDRX parameters of the first access network device, so as to reduce the delay for the terminal to first receive the paging message of the access network device and improve the user experience. In addition, in this method, the terminal can use the same eDRX parameters to receive the paging messages of the first access network device and the core network device, which is easy to implement and has high feasibility.

A possible implementation manner is to receive the second parameter information from the first access network device in the case of entering the radio resource control inactive RRC-inactive state. Based on the above method, the terminal can use the modified eDRX parameters to receive the paging message of the first access network device in the RRC-inactive state, thereby reducing the delay for the terminal to receive the paging message of the first access network device, and improving the user experience. experience.

In a possible implementation manner, the second parameter information is carried in the RRC release message or the RRC connection reconfiguration message. Based on the above method, the terminal may receive the second parameter information in the RRC release message or the RRC connection reconfiguration message.

A possible implementation manner, acquiring the first parameter information includes: receiving the first parameter information from the core network device, where the first parameter information is carried in a non-access stratum NAS message. Based on the above method, the terminal may receive the first parameter information from the core network device through the NAS message.

In a third aspect, an embodiment of the present application provides a communication method, which can be applied to a core network device. The method includes: sending first parameter information to a first access network device, where the first parameter information is used to indicate extended discontinuity Receive eDRX parameters, the eDRX parameters are used by the core network equipment to send paging messages in the eDRX mode; receive second parameter information from the first access network equipment, the second parameter information is used to indicate the changed eDRX parameters, the changed The eDRX parameter is used for the core network device to send the paging message in the eDRX mode after receiving the second parameter information.

Based on the method provided in the third aspect, after the first access network device changes the eDRX parameters configured by the core network device, it can indicate the changed eDRX parameters to the core network device, so that the core network device can also send messages according to the changed eDRX parameters. paging message. In this way, the first access network device and the core network device can use the same eDRX parameters to send the paging message, which is easy to implement and has high feasibility.

In a possible implementation manner, the terminal receives the second parameter information from the first access network device when the terminal enters the radio resource control inactive RRC-inactive state. Based on the above method, the first access network device changes the eDRX parameters only when it is determined that the terminal has entered the RRC-inactive state, so that the terminal can use the changed eDRX parameters in the RRC-inactive state to receive the data of the first access network device. The paging message can reduce the delay for the terminal to receive the paging message of the first access network device, and improve the user experience.

In a possible implementation manner, the second parameter information is carried in the RRC inactive transition report. Based on the above method, the core network device may receive the second parameter information through the RRC inactivity transition report.

In a possible implementation manner, the first parameter information is carried in the initial context establishment request message, or carried in the core network assistance information in the RRC-inactive state. Based on the above method, the core network device may send the first parameter information to the first access network device through the initial context establishment request message or the core network assistance information in the RRC-inactive state.

In a possible implementation manner, the method further includes: sending the second parameter information to the terminal. Based on the above method, the first access network device can send the second parameter information to the terminal through the core network device, so that the terminal can receive the paging message according to the second parameter information.

In a possible implementation manner, the method further includes: sending first parameter information to the terminal, where the first parameter information is carried in a non-access stratum NAS message. Based on the above method, the core network device can send the first parameter information to the terminal through the NAS message, so that the terminal can receive the paging message according to the first parameter information before receiving the second parameter information.

In a fourth aspect, an embodiment of the present application provides a communication method, which can be applied to a second access network device, the method includes: receiving parameter information of the first eDRX from the first access network device, parameter information of the first eDRX Including first parameter information or second parameter information, the first parameter information is used to indicate the extended discontinuous reception eDRX parameter, the eDRX parameter is used by the first access network device to send a paging message to the terminal using the eDRX mode, and the second parameter information It is used to indicate the changed eDRX parameters, and the changed eDRX parameters are used to send a paging message to the terminal in the eDRX mode after the first access network device sends the second parameter information; send a paging message to the terminal according to the parameter information of the first eDRX. call message.

Based on the method provided in the fourth aspect, the second access network device may receive the first parameter information or the second parameter information from the first access network device, so as to subsequently page the terminal according to the first parameter information or the second parameter information .

In a possible implementation manner, the parameter information of the first eDRX further includes at least one of a DRX cycle of the access network device configured by the first access network device and a terminal-specific DRX cycle. Based on the above method, the second access network device may determine the DRX cycle for paging the terminal.

In a possible implementation manner, the identifier of the second access network device is included in the tracking area list of the first access network device.

In a possible implementation manner, the parameter information of the first eDRX is carried in the paging message of the access network device. Based on the above method, the second access network device may receive the first parameter information or the second parameter information through a paging message of the access network device.

In a fifth aspect, an embodiment of the present application provides a communication method, which can be applied to a first access network device. The method includes: sending auxiliary information to a core network device, where the auxiliary information is used to assist the core network device to configure eDRX parameters; The first indication information of the core network device, where the first indication information is used to indicate the first extended discontinuous reception eDRX parameter; the paging message is sent by using the first eDRX parameter.

Based on the method provided in the fifth aspect, the first access network device may send auxiliary information to the core network device as required, so as to trigger the core network device to configure appropriate eDRX parameters, so that the terminal receives the paging message from the access network device when Reduced latency and improved user experience. In addition, in this method, the first access network device and the core network device can use the same eDRX parameters to send the paging message, which is easy to implement and has high feasibility.

A possible implementation manner, the method further includes: acquiring first parameter information, where the first parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the first access network device before receiving the first indication information. Paging messages are sent in eDRX mode. Based on the above method, the first access network device may acquire the first parameter information, so as to determine whether the second eDRX parameter is suitable for the first access network device to send the paging message according to the first parameter information.

A possible implementation manner is to send auxiliary information to the core network device when it is determined that the terminal is about to enter the radio resource control inactive RRC-inactive state. Based on the above method, when it is determined that the terminal enters the RRC-inactive state, the core network device is triggered to configure the eDRX parameters, so that the terminal can use the newly configured eDRX parameters to receive the paging of the first access network device in the RRC-inactive state message, which can reduce the delay for the terminal to receive the paging message of the first access network device, and improve the user experience.

A possible implementation manner, the method further includes: determining whether to send auxiliary information to the core network device according to the terminal capability information and/or the first condition information; wherein the terminal capability information is used to indicate at least one of the following information: Whether the terminal supports eDRX, whether the terminal supports the RRC-inactive state, whether the terminal supports eDRX in the RRC-inactive state; the first condition information is used to indicate whether the eDRX cycle included in the first parameter information is greater than or equal to the first time length. Based on the above method, conditions are given for the first access network device to trigger the core network device to configure eDRX parameters.

In a possible implementation manner, the first indication information is carried in the terminal context termination response. Based on the foregoing method, the first access network device may receive the first indication information through a terminal context termination response.

In a possible implementation manner, the auxiliary information is carried in the terminal context suspension request message or the terminal capability information indication message. Based on the above method, the first access network device may send auxiliary information to the core network device through a terminal context termination request message or a terminal capability information indication message.

A possible implementation manner, acquiring the first parameter information includes: receiving the first parameter information from the core network device, where the first parameter information is carried in the initial context establishment request message, or carried in the core network assistance in the RRC-inactive state information. Based on the above method, the first access network device may receive the first parameter information of the core network device through the initial context establishment request message or the core network assistance information in the RRC-inactive state.

In a possible implementation manner, the method further includes: sending parameter information of the first eDRX to the second access network device, where the parameter information of the first eDRX includes first parameter information or first indication information. Based on the above method, the first parameter information or the second parameter information can be sent to the second access network device, so that the second access network device can page the terminal according to the first parameter information or the second parameter information.

In a possible implementation manner, the parameter information of the first eDRX is carried in the paging message of the access network device. Based on the above method, the first access network device may send the first parameter information and the second parameter information to the second access network device through a paging message of the access network device.

In a possible implementation manner, the first access network device includes a centralized unit and a distribution unit, and the first access network device receives the first indication information from the core network device, including: the centralized unit receives the first indication from the core network device. The first access network device obtains the first parameter information, including: the centralized unit obtains the first parameter information, and the method further includes: the centralized unit sends the parameter information of the second eDRX to the distribution unit, and the parameter information of the second eDRX includes the first parameter information. parameter information or first indication information. Based on the above method, under the architecture in which the first access network device is separated from the centralized unit and the distribution unit, after the centralized unit obtains the first parameter information or the second parameter information, it can send it to the distribution unit, so that the distribution unit can send the information to the distribution unit according to the first parameter information. or the second parameter information paging the terminal.

In a sixth aspect, an embodiment of the present application provides a communication method, which is applied to a terminal. The method includes: acquiring first parameter information, where the first parameter information is used to indicate a second eDRX parameter, and the second eDRX parameter is used for the terminal to adopt an eDRX mode receiving a paging message; receiving first indication information from a first access network device or a core network device, where the first indication information is used to indicate a first eDRX parameter; and using the first eDRX parameter to receive a paging message.

Based on the method provided in the sixth aspect, after acquiring the second eDRX parameter, the terminal may also receive the first eDRX parameter configured by the core network device, and subsequently receive the paging message according to the first eDRX parameter.

In a possible implementation manner, the first indication information from the first access network device is received through an RRC release message or an RRC connection reconfiguration message; the first indication information from the core network device is received through a non-access stratum NAS message. Based on the above method, the terminal may receive the first indication information through an RRC release message or an RRC connection reconfiguration message, or receive the first indication information through a NAS message.

A possible implementation manner, acquiring the first parameter information includes: receiving the first parameter information from the core network device, where the first parameter information is carried in the NAS message. Based on the above method, the terminal may receive the first parameter information of the core network device through the NAS message, so as to receive the paging message according to the first parameter information before receiving the first indication information.

In a seventh aspect, an embodiment of the present application provides a communication method, which is applied to a core network device. The method includes: receiving auxiliary information from a first access network device, where the auxiliary information is used to assist the core network device in configuring eDRX parameters; An access network device sends first indication information, where the first indication information is used to indicate the first extended discontinuous reception eDRX parameter; the paging message is sent by using the first eDRX parameter.

Based on the method provided in the seventh aspect, the core network can configure the eDRX parameters according to the trigger of the first access network device, so that the delay of the terminal receiving the paging message of the access network device is reduced, and the user experience is improved. In addition, in this method, the first access network device and the core network device can use the same eDRX parameters to send the paging message, which is easy to implement and has high feasibility.

In a possible implementation manner, the terminal receives auxiliary information from the first access network device when the terminal is about to enter the radio resource control inactive RRC-inactive state. Based on the above method, when the terminal enters the RRC-inactive state, the core network device is triggered to configure the eDRX parameters, so that the terminal can use the newly configured eDRX parameters in the RRC-inactive state to receive the paging message of the first access network device , which can reduce the time delay for the terminal to receive the paging message of the first access network device, and improve the user experience.

In a possible implementation manner, the auxiliary information is carried in the terminal context suspension request message or the terminal capability information indication message. Based on the above method, the core network device may receive the auxiliary information through a terminal context termination request message or a terminal capability information indication message.

In a possible implementation manner, the first indication information is sent to the first access network device through a terminal context termination response. Based on the above method, the first indication information may be sent to the first access network device through a terminal context termination response.

In a possible implementation manner, the method further includes: sending the first indication information to the terminal. Based on the above method, the core network device can send the first indication information to the terminal, so that the terminal can receive the paging message according to the first indication information.

In a possible implementation manner, the first indication information is sent to the terminal through a non-access stratum NAS message. Based on the above method, the core network device can send the first indication information to the terminal through a NAS message.

A possible implementation manner, the method further includes: sending first parameter information to the first access network device, where the first parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the core network device to send the first indication Before the message, the paging message is sent in eDRX mode. Based on the above method, the core network device can send the first parameter information to the first access network device, so that the first access network device can determine whether to trigger the core network device to configure eDRX parameters according to the first parameter information.

In a possible implementation manner, the first parameter information is carried in the initial context establishment request message, or carried in the core network assistance information in the RRC-inactive state. Based on the above method, the first parameter information may be sent to the first access network device through an initial context establishment request message or core network assistance information in an RRC-inactive state.

A possible implementation manner, the method further includes: sending first parameter information to the terminal, the first parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the core network device to send the first indication information, using eDRX mode to send paging messages. Based on the above method, the core network device can also send the first parameter information to the terminal, so that the terminal can receive the paging message according to the first parameter information before receiving the first indication information.

In a possible implementation manner, the first parameter information is sent to the terminal through a non-access stratum NAS message. Based on the above method, the core network device may send the first parameter information to the terminal through a NAS message.

In an eighth aspect, an embodiment of the present application provides a communication method, which is applied to a second access network device. The method includes: receiving parameter information of the first eDRX from the first access network device, where the parameter information of the first eDRX includes: The first parameter information or the first indication information, the first parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the first access network device to send the paging to the terminal in the eDRX mode before receiving the first indication information message, the first indication information is used to indicate the first eDRX parameter, and the first eDRX parameter is used for the first access network device to send a paging message to the terminal in the eDRX mode after receiving the first indication information; the second access network device Send a paging message to the terminal according to the parameter information of the first eDRX.

Based on the method provided in the eighth aspect, the second access network device may receive the first parameter information or the second parameter information from the first access network device, and then page the terminal according to the first parameter information or the second parameter information.

In a ninth aspect, an embodiment of the present application provides a communication method, which is applied to a first access network device. The method includes: acquiring first parameter information, determining a first time domain location according to the first parameter information, and using the first parameter information to use In order to indicate the first eDRX parameter, the first eDRX parameter is used for the core network equipment to send the paging message in the eDRX mode, and the first time domain position includes the position of at least one paging time unit; in the first time unit, according to the core network equipment Whether there is a paging time unit to send a paging message to the terminal, within the first time unit, the first access network device has a paging time unit.

Based on the method provided in the ninth aspect, the eDRX parameters used by the core network device to send the paging message are different from the eDRX parameters used by the first access network device to send the paging message. In this case, if both the paging time unit of the core network device and the paging time unit of the access network device exist in the first time unit, the terminal can be woken up in one of the paging time units. In this way, the terminal can receive the paging messages of the access network equipment and the core network equipment according to the appropriate eDRX parameters, which can not only reduce the delay, improve the user experience, but also reduce the power consumption of the terminal.

A possible implementation manner, the method further includes: determining a second time domain location according to second parameter information, where the second parameter information is used to indicate a second eDRX parameter, and the second eDRX parameter is used for the first access network device to adopt eDRX The mode sends a paging message, and the second time domain location includes the location of at least one paging time unit. Based on the above method, the first access network device may determine the second time domain location according to the second parameter information. In this way, the first access network device can send the paging message according to the first time domain location and the second time domain location.

In a possible implementation manner, the second parameter information is obtained according to the first parameter information, and within the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the first access network device are within the same time period. There is overlap in the time domain. Based on the above method, the first access network device can acquire the second parameter information according to the first parameter information, so that within the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the first access network device The time units overlap in the time domain.

In a possible implementation manner, the number of superframes in the eDRX cycle included in the first parameter information is an even number, and the identifier of the terminal is an even number. Based on the above method, the first access network device may configure appropriate second parameter information, so that within the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the first access network device are within the same There is overlap in the time domain.

In a possible implementation manner, the number of superframes in the eDRX cycle included in the second parameter information is an even number. Based on the above method, in the case that the number of superframes in the eDRX cycle included in the second parameter information is an even number, within the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the first access network device The time units overlap in the time domain.

In a possible implementation manner, the paging time unit includes a paging time window PTW or a paging occasion PO.

In a possible implementation manner, in the first time unit, sending a paging message to the terminal according to whether the core network device has a paging time unit, including: if the core network device has a paging time unit in the first time unit, In the first time unit, the paging message is sent to the terminal in the paging time unit where the first access network device exists, or, in the first time unit, the paging message is sent to the terminal in the paging time unit where the core network device exists. paging message; or, if the core network device does not have a paging time unit in the first time unit, then in the first time unit, the first access network device sends a paging message to the terminal in the paging time unit that exists in the first access network device information. Based on the above method, within the first time unit, if both the core network device and the first access network device have paging time units, the first access network device and the core network device send paging in one of the paging time units message, which can reduce the number of times the terminal is woken up and reduce the power consumption of the terminal.

In a possible implementation manner, if the core network device has a paging time unit within the first time unit, the DRX cycle for sending the paging message by the first access network device is the default DRX cycle; The DRX cycle in which the network device sends the paging message is the terminal-specific DRX cycle; or, the DRX cycle in which the first access network device sends the paging message is the DRX cycle of the access network device; or, the first access network device sends the paging message. The DRX cycle of the paging message is the default DRX cycle, the minimum or maximum value between the terminal-specific DRX cycle and the DRX cycle of the access network device; or, if within the first time unit, the core network device does not have a paging time unit, then the DRX cycle of sending the paging message by the first access network device is the default DRX cycle; or, the DRX cycle of sending the paging message by the first access network device is the DRX cycle of the access network device; or, the first The DRX cycle for the access network device to send the paging message is the minimum or maximum value among the default DRX cycle and the DRX cycle of the access network device. Based on the above method, the DRX cycle for sending the paging message by the first access network device in different situations is given.

A possible implementation manner, acquiring the first parameter information includes: receiving the first parameter information from the core network device, where the first parameter information is carried in the initial context establishment request message, or carried in the core network assistance in the RRC-inactive state information. Based on the above method, the first access network device may receive the first parameter information through the initial context establishment request message or the core network assistance information in the RRC-inactive state.

In a possible implementation manner, the first time unit is a superframe.

In a possible implementation manner, the method further includes: sending parameter information of the first eDRX to the second access network device, where the parameter information of the first eDRX includes the first parameter information and the second parameter information. Based on the above method, the first access network device can send the first parameter information and the second parameter information to the second access network device, so that after the terminal moves to the coverage of the second access network device in the RRC-inactive state, The second access network device may page the terminal according to the first parameter information and the second parameter information.

In a possible implementation manner, the first access network device includes a centralized unit and a distribution unit, and the first access network device acquiring the first parameter information includes: the centralized unit acquiring the first parameter information, and the method further includes: the centralized unit sending the information to the distribution unit. The distribution unit sends parameter information of the second eDRX, where the parameter information of the second eDRX includes first parameter information and second parameter information, the second parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the first access network The device sends paging messages in eDRX mode. Based on the above method, under the architecture in which the first access network device is separated from the centralized unit and the distribution unit, after the centralized unit obtains the first parameter information and the second parameter information, it can send the information to the distribution unit, so that the distribution unit can send the information to the distribution unit according to the first parameter information. and the second parameter information to page the terminal.

In a possible implementation manner, the parameter information of the second eDRX is carried in the paging message. Based on the above method, the centralized unit may send the first parameter information and the second parameter information to the distribution unit through a paging message.

In a tenth aspect, an embodiment of the present application provides a communication method, which is applied to a terminal. The method includes: acquiring first parameter information and second parameter information, where the first parameter information is used to indicate a first eDRX parameter, and the first eDRX parameter is used for The terminal uses the eDRX mode to receive the paging message from the core network device, the second parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the terminal to use the eDRX mode to receive the paging message from the first access network device; The first time domain position is determined according to the first parameter information, the second time domain position is determined according to the second parameter information, the first time domain position includes the position of at least one paging time unit, and the second time domain position includes at least one paging time The location of the unit; in the first time unit, according to whether the core network device has a paging time unit to receive the paging message from the first access network device and the paging message from the core network device, in the first time unit, the first time unit A paging time unit exists in an access network device.

Based on the method provided in the tenth aspect above, the eDRX parameters used by the core network device to send the paging message are different from the eDRX parameters used by the first access network device to send the paging message. In this case, if both the paging time unit of the core network device and the paging time unit of the access network device exist in the first time unit, the terminal can be woken up in one of the paging time units. In this way, the terminal can receive the paging messages of the access network equipment and the core network equipment according to the appropriate eDRX parameters, which can not only reduce the delay, improve the user experience, but also reduce the power consumption of the terminal.

In a possible implementation manner, the second parameter information is obtained according to the first parameter information, and within the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the first access network device are within the same time period. There is overlap in the time domain. Based on the above method, the second parameter information can be acquired according to the first parameter information, so that within the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the first access network device are in the time domain There is overlap.

In a possible implementation manner, the number of superframes in the eDRX cycle included in the first parameter information is an even number, and the identifier of the terminal is an even number. Based on the above method, according to the second parameter information determined according to the first parameter information, within the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the first access network device can be in the time domain There is overlap.

In a possible implementation manner, in the first time unit, receive the paging message from the first access network device and the paging message from the core network device according to whether the core network device has a paging time unit, including: In a time unit, the core network device has a paging time unit, then in the first time unit, the paging time unit of the first access network device receives a paging message from the first access network device and a paging message from the core network device. The paging message of the network device, or, in the first time unit, the paging message from the first access network device and the paging message from the core network device are received in the paging time unit that exists in the core network device; or, If in the first time unit, the core network device does not have a paging time unit, then within the first time unit, the core network device receives a paging message from the core network device in the paging time unit that exists in the core network device, and at the first time In the unit, the paging message from the first access network device is received in the paging time unit where the first access network device exists. Based on the above method, in the first time unit, if both the core network device and the first access network device have paging time units, the terminal receives a paging message in one of the paging time units, which can reduce the number of times the terminal is woken up , reduce the power consumption of the terminal.

In a possible implementation manner, if the core network device has a paging time unit in the first time unit, the discontinuous reception DRX cycle for the terminal to receive the paging message is the default DRX cycle; The DRX cycle is the terminal-specific DRX cycle; or, the DRX cycle of the terminal receiving the paging message is the DRX cycle of the access network device; or, the DRX cycle of the terminal receiving the paging message is the default DRX cycle, and the terminal-specific DRX cycle and The minimum or maximum value in the DRX cycle of the access network device; or, if the core network device does not have a paging time unit within the first time unit, the DRX cycle for the terminal to receive the paging message of the core network device is the default or, the DRX cycle of the terminal receiving the paging message of the core network device is the terminal-specific DRX cycle; or, the DRX cycle of the terminal receiving the paging message of the core network device is the default DRX cycle and the terminal-specific DRX cycle The minimum value or the maximum value of ; or, if in the first time unit, the core network device does not have a paging time unit, the DRX cycle for the terminal to receive the paging message of the first access network device is the default DRX cycle; Or, the DRX cycle of the terminal receiving the paging message of the first access network device is the DRX cycle of the access network device; or, the DRX cycle of the terminal receiving the paging message of the first access network device is the default DRX cycle and the DRX cycle of the access network device. The minimum or maximum value in the DRX cycle of the connected device. Based on the above method, the DRX cycle for the terminal to receive the paging message in different situations is given.

A possible implementation manner, acquiring the first parameter information includes: receiving the first parameter information from the core network device, where the first parameter information is carried in a non-access stratum NAS message. Based on the above method, the terminal may receive the first parameter information of the core network device through the NAS message.

A possible implementation manner of acquiring the second parameter information includes: receiving the second parameter information from the first access network device, where the second parameter information is carried in the RRC release message or the RRC connection reconfiguration message. Based on the above method, the terminal may receive the second parameter information of the first access network device through the RRC release message or the RRC connection reconfiguration message.

In an eleventh aspect, an embodiment of the present application provides a communication method, which is applied to a core network device. The method includes: acquiring second parameter information, determining a second time domain location according to the second parameter information, and the second parameter information is used to indicate The second eDRX parameter, the second eDRX parameter is used by the first access network device to send the paging message in the eDRX mode, and the second time domain location includes the location of at least one paging time unit; within the first time unit, according to the core network Whether the device has a paging time unit sends a paging message to the terminal, and within the first time unit, the first access network device has a paging time unit.

Based on the method provided in the eleventh aspect, the eDRX parameters used by the core network device to send the paging message are different from the eDRX parameters used by the first access network device to send the paging message. In this case, if both the paging time unit of the core network device and the paging time unit of the access network device exist in the first time unit, the terminal can be woken up in one of the paging time units. In this way, the terminal can receive the paging messages of the access network equipment and the core network equipment according to the appropriate eDRX parameters, which can not only reduce the delay, improve the user experience, but also reduce the power consumption of the terminal.

A possible implementation manner, the method further includes: determining a first time domain position according to first parameter information, where the first parameter information is used to indicate a first eDRX parameter, and the first eDRX parameter is used for the core network device to send the search query in the eDRX mode. paging message, the first time domain location includes the location of at least one paging time unit. Based on the above method, the core network device may determine the first time domain location according to the first parameter information. In this way, the core network device can send the paging message according to the first time domain location and the second time domain location.

In a possible implementation manner, in the first time unit, sending a paging message to the terminal according to whether the core network device has a paging time unit, including: if the core network device has a paging time unit in the first time unit, In the first time unit, the paging message is sent to the terminal in the paging time unit where the first access network device exists, or, in the first time unit, the paging message is sent to the terminal in the paging time unit where the core network device exists. paging message; or, if the core network device does not have a paging time unit in the first time unit, send a paging message to the terminal in the paging time unit that the core network device exists in the first time unit. Based on the above method, within the first time unit, if both the core network device and the first access network device have paging time units, the first access network device and the core network device send paging in one of the paging time units message, which can reduce the number of times the terminal is woken up and reduce the power consumption of the terminal.

In a possible implementation manner, if the core network device has a paging time unit in the first time unit, the discontinuous reception DRX cycle for sending the paging message by the core network device is the default DRX cycle; or, the core network device sends The DRX cycle of the paging message is the terminal-specific DRX cycle; or, the DRX cycle of the core network device sending the paging message is the DRX cycle of the access network device; or, the DRX cycle of the core network device sending the paging message is the default DRX cycle Period, the minimum or maximum value between the terminal-specific DRX cycle and the DRX cycle of the access network device; or, within the first time unit, if the core network device does not have a paging time unit, the core network device sends a paging message The discontinuous reception DRX cycle is the default DRX cycle; or, the DRX cycle in which the core network device sends the paging message is the terminal-specific DRX cycle; or the DRX cycle in which the core network device sends the paging message is the default DRX cycle and the terminal Minimum or maximum value in a specific DRX cycle. Based on the above method, the DRX cycle for the core network device to send the paging message in different situations is given.

A possible implementation manner, acquiring the second parameter information includes: receiving the second parameter information from the first access network device, where the second parameter information is carried in the RRC inactivity transition report. Based on the above method, the core network device may receive the second parameter information of the first access network device through the RRC inactive transition report.

In a twelfth aspect, an embodiment of the present application provides a communication method, which is applied to a second access network device. The method includes: receiving parameter information of the first eDRX from the first access network device, parameter information of the first eDRX Including first parameter information and second parameter information, the first parameter information is used to indicate the first extended discontinuous reception eDRX parameter, the first eDRX parameter is used for the core network device to send a paging message to the terminal using the eDRX mode, and the second parameter The information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the first access network device to send a paging message to the terminal in the eDRX mode; the first time domain position is determined according to the first parameter information, and the first time domain position is determined according to the second parameter information. Two time domain locations, the first time domain location includes the location of at least one paging time unit, and the second time domain location includes the location of at least one paging time unit; in the first time unit, according to whether there is paging in the core network equipment The time unit sends a paging message to the terminal, and within the first time unit, the first access network device has a paging time unit.

Based on the method provided in the twelfth aspect, the first access network device may send the first parameter information and the second parameter information to the second access network device, so that the terminal moves to the second access network in the RRC-inactive state After the coverage of the device, the second access network device can page the terminal according to the first parameter information and the second parameter information.

In a possible implementation manner, in the first time unit, sending a paging message to the terminal according to whether the core network device has a paging time unit, including: if the core network device has a paging time unit in the first time unit, In the first time unit, the paging message is sent to the terminal in the paging time unit where the first access network device exists, or, in the first time unit, the paging message is sent to the terminal in the paging time unit where the core network device exists. paging message; or, if the core network device does not have a paging time unit in the first time unit, then in the first time unit, the first access network device sends a paging message to the terminal in the paging time unit that exists in the first access network device information. Based on the above method, within the first time unit, if both the core network device and the second access network device have paging time units, the second access network device and the core network device send paging in one of the paging time units message, which can reduce the number of times the terminal is woken up and reduce the power consumption of the terminal.

In a possible implementation manner, if the core network device has a paging time unit within the first time unit, the discontinuous reception DRX cycle in which the second access network device sends the paging message is the default DRX cycle; The DRX cycle of the second access network device sending the paging message is the terminal-specific DRX cycle; or, the DRX cycle of the second access network device sending the paging message is the DRX cycle of the access network device; or, the second access network device The DRX cycle for the device to send the paging message is the default DRX cycle, the minimum or maximum value between the terminal-specific DRX cycle and the DRX cycle of the access network device; if the core network device does not have paging within the first time unit time unit, then the discontinuous reception DRX cycle of the second access network device sending the paging message is the default DRX cycle; or, the DRX cycle of the second access network device sending the paging message is the DRX cycle of the access network device; Or, the DRX cycle for sending the paging message by the second access network device is the minimum or maximum value among the default DRX cycle and the DRX cycle of the access network device. Based on the above method, the DRX cycle for sending the paging message by the second access network device in different situations is given.

In a possible implementation manner, the parameter information of the first eDRX is carried in the paging message of the access network device. Based on the above method, the second access network device may receive the first parameter information and the second parameter information through a paging message of the access network device.

In a thirteenth aspect, an embodiment of the present application provides a communication method, which is applied to a first access network device. The method includes: acquiring first parameter information, determining a first time domain location according to the first parameter information, and the first parameter information Used to indicate the first eDRX parameter, the first eDRX parameter is used for the core network device to send the paging message in the eDRX mode, and the first time domain position includes the position of at least one paging time unit; obtain the second parameter information, according to the second parameter The information determines the second time domain configuration, the second parameter information is obtained according to the first parameter information, the second parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used by the first access network device to send the search request in the eDRX mode. paging message, the second time domain location includes the location of at least one paging time unit; the paging message is sent according to the first time domain location and the second time domain location.

Based on the method provided in the thirteenth aspect, the first access network device may determine the second parameter information according to the first parameter information, so that the position of the part of the paging time unit included in the second time domain location is the same as the first time domain location. The positions of the included partial paging time units overlap in the time domain. In this way, for the overlapping paging time units in the first time domain location and the second time domain location, the terminal can be woken up in one of the paging time units, so that the terminal can both receive access network equipment and The paging message of the core network equipment can reduce the delay, improve the user experience, and reduce the power consumption of the terminal.

In a possible implementation manner, in the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the first access network device overlap in the time domain. Based on the above method, in the first time unit, the terminal can be woken up in one of the paging time units, so that the terminal can not only receive paging messages from the access network equipment and the core network equipment according to the appropriate eDRX parameters, but also reduce the Delay, improve user experience, and reduce terminal power consumption.

In a possible implementation manner, the number of superframes in the eDRX cycle included in the first parameter information is an even number, and the identifier of the terminal is an even number. Based on the above method, the second parameter information determined according to the first parameter information may be such that within the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the first access network device are in the time domain There is overlap.

A possible implementation manner, sending a paging message according to the first time domain location and the second time domain location includes: in the first time unit, sending the paging message to the terminal in the paging time unit where the first access network device exists The paging message, or the paging message is sent to the terminal in the paging time unit where the core network device exists; or, outside the first time unit, the paging message is sent to the terminal in the paging time unit where the first access network device exists paging message. Based on the above method, within the first time unit, the first access network device and the core network device have a paging time in the paging time unit existing in the first access network device and the paging time unit existing in the core network device. Sending a paging message in the unit can reduce the number of times the terminal is woken up and reduce the power consumption of the terminal.

In a possible implementation manner, within the first time unit, the DRX cycle for sending the paging message by the first access network device is the default DRX cycle; or, the DRX cycle for sending the paging message by the first access network device is the terminal DRX cycle. a specific DRX cycle; or, the DRX cycle of the first access network device sending the paging message is the DRX cycle of the access network device; or, the DRX cycle of the first access network device sending the paging message is the default DRX cycle, The minimum or maximum value between the terminal-specific DRX cycle and the DRX cycle of the access network device; outside the first time unit, the DRX cycle of the first access network device sending the paging message is the default DRX cycle; The DRX cycle of the paging message sent by an access network device is the DRX cycle of the access network device; or, the DRX cycle of the first access network device to send the paging message is the default DRX cycle and the DRX cycle of the access network device. the minimum or maximum value of . Based on the above method, the DRX cycle for sending the paging message by the first access network device in different situations is given.

In a possible implementation manner, the first time unit is a superframe.

In a possible implementation manner, the first access network device includes a centralized unit and a distribution unit, and the first access network device obtains the first parameter information, including: the centralized unit obtains the first parameter information, and the first access network device obtains the first parameter information. The second parameter information includes: the centralized unit obtains the second parameter information, and the method further includes: the centralized unit sends the second eDRX parameter information to the distribution unit, where the second eDRX parameter information includes the first parameter information and the second parameter information. Based on the above method, under the architecture in which the first access network device is separated from the centralized unit and the distribution unit, after the centralized unit obtains the first parameter information and the second parameter information, it can send the information to the distribution unit, so that the distribution unit can send the information to the distribution unit according to the first parameter information. and the second parameter information to page the terminal.

In a fourteenth aspect, an embodiment of the present application provides a communication method, which is applied to a terminal. The method includes: acquiring first parameter information, determining a first time domain position according to the first parameter information, and the first parameter information is used to indicate the first Extended discontinuous reception eDRX parameter, the first eDRX parameter is used by the terminal to receive a paging message from a core network device in an eDRX mode, and the first time domain location includes the location of at least one paging time unit; obtain the second parameter information, according to The second parameter information determines the second time domain configuration, the second parameter information is obtained according to the first parameter information, the second parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the terminal to use the eDRX mode to receive data from the first For the paging message of the access network device, the second time domain location includes the location of at least one paging time unit; the paging message is received according to the first time domain location and the second time domain location.

Based on the method provided in the fourteenth aspect, the second parameter information may be determined according to the first parameter information, so that the position of the part of the paging time unit included in the second time domain location is the same as the part of the paging time included in the first time domain location. The locations of the cells overlap in the time domain. In this way, for the overlapping paging time units in the first time domain location and the second time domain location, the terminal can be woken up in one of the paging time units, so that the terminal can both receive access network equipment and The paging message of the core network equipment can reduce the delay, improve the user experience, and reduce the power consumption of the terminal.

A possible implementation manner of receiving the paging message according to the first time domain location and the second time domain location includes: in the first time unit, receiving the paging message from the first time unit in the paging time unit where the first access network device exists. A paging message from an access network device and a paging message from a core network device, or receive a paging message from the first access network device and a paging message from the core network device in the paging time unit that exists in the core network device or, outside the first time unit, receive a paging message from the core network device in the paging time unit where the core network device exists, and receive the paging message from the first access network device in the paging unit where the first access network device exists. A paging message for an access network device. Based on the above method, in the first time unit, the terminal receives the paging message in one of the paging time unit existing in the first access network device and the paging time unit existing in the core network device, which can reduce The number of times the terminal is woken up to reduce the power consumption of the terminal.

In a possible implementation manner, in the first time unit, the discontinuous reception DRX cycle for the terminal to receive the paging message is the default DRX cycle; or, the DRX cycle for the terminal to receive the paging message is the terminal-specific DRX cycle; or, The DRX cycle of the terminal receiving the paging message is the DRX cycle of the access network device; or, the DRX cycle of the terminal receiving the paging message is the default DRX cycle, the minimum value between the terminal-specific DRX cycle and the DRX cycle of the access network device or the maximum value; outside the first time unit, the DRX cycle in which the terminal receives the paging message of the core network device is the default DRX cycle; or the DRX cycle in which the terminal receives the paging message of the core network device is the terminal-specific DRX cycle; Or, the DRX cycle of the terminal receiving the paging message of the core network device is the minimum or maximum value between the default DRX cycle and the terminal-specific DRX cycle; outside the first time unit, the terminal receives the paging message of the first access network device. The DRX cycle of the paging message is the default DRX cycle; or, the DRX cycle of the terminal receiving the paging message of the first access network device is the DRX cycle of the access network device; or, the terminal receiving the paging of the first access network device The DRX cycle of the message is the minimum or maximum value among the default DRX cycle and the DRX cycle of the access network device. Based on the above method, the DRX cycle for the terminal to receive the paging message in different situations is given.

A possible implementation manner, acquiring the first parameter information includes: receiving the first parameter information from the core network device, where the first parameter information is carried in a non-access stratum NAS message. Based on the above method, the terminal may receive the first parameter information through a NAS message.

In a fifteenth aspect, an embodiment of the present application provides a communication method, which is applied to a core network device. The method includes: acquiring first parameter information, determining a first time domain location according to the first parameter information, and the first parameter information is used to indicate The first extended discontinuous reception eDRX parameter, the first eDRX parameter is used for the core network device to send the paging message in the eDRX mode, and the first time domain position includes the position of at least one paging time unit; The second parameter information determines the second time domain configuration, the second parameter information is obtained according to the first parameter information, the second parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the first access network device to adopt the eDRX mode Send a paging message, the second time domain location includes the location of at least one paging time unit; send the paging message according to the first time domain location and the second time domain location.

Based on the method provided in the fifteenth aspect, the second parameter information may be determined according to the first parameter information, so that the position of the part of the paging time unit included in the second time domain location is the same as the part of the paging time included in the first time domain location. The locations of the cells overlap in the time domain. In this way, for the overlapping paging time units in the first time domain location and the second time domain location, the terminal can be woken up in one of the paging time units, so that the terminal can both receive access network equipment and The paging message of the core network equipment can reduce the delay, improve the user experience, and reduce the power consumption of the terminal.

A possible implementation manner of sending a paging message according to the first time domain location and the second time domain location includes: in the first time unit, sending a paging message to the terminal during the paging time when the first access network device exists. paging message, or send the paging message to the terminal in the paging time unit existing in the core network device; or, outside the second time unit, send the paging message to the terminal in the paging time unit existing in the core network device. Based on the above method, within the first time unit, the first access network device and the core network device have a paging time in the paging time unit existing in the first access network device and the paging time unit existing in the core network device. Sending a paging message in the unit can reduce the number of times the terminal is woken up and reduce the power consumption of the terminal.

In a possible implementation manner, in the first time unit, the discontinuous reception DRX cycle in which the core network device sends the paging message is the default DRX cycle; or the DRX cycle in which the core network device sends the paging message is the terminal-specific DRX cycle. cycle; or, the DRX cycle of the core network device sending the paging message is the DRX cycle of the access network device; or, the DRX cycle of the core network device sending the paging message is the default DRX cycle, the terminal-specific DRX cycle and the access network device The minimum or maximum value of the DRX cycle of the device; outside the first time unit, the DRX cycle for the core network device to send the paging message is the default DRX cycle; or, the DRX cycle for the core network device to send the paging message is terminal-specific or, the DRX cycle in which the core network device sends the paging message is the minimum or maximum value among the default DRX cycle and the terminal-specific DRX cycle. Based on the above method, the DRX cycle for the core network device to send the paging message in different situations is given.

In a sixteenth aspect, an embodiment of the present application provides a communication method, which is applied to a second access network device. The method includes: receiving parameter information of the first eDRX from the first access network device, parameter information of the first eDRX Including first parameter information and second parameter information, the first parameter information is used to indicate the first extended discontinuous reception eDRX parameter, the first eDRX parameter is used for the core network device to send a paging message to the terminal using the eDRX mode, and the second parameter The information is used to indicate the second eDRX parameter, and the second eDRX parameter is used by the first access network device to send a paging message to the terminal using the eDRX mode, and the second parameter information is obtained according to the first parameter information; determined according to the first parameter information The first time domain position, the second time domain position is determined according to the second parameter information, the first time domain position includes the position of at least one paging time unit, and the second time domain position includes the position of at least one paging time unit; A paging message is sent to the first time domain location and the second time domain location.

Based on the method provided in the sixteenth aspect, the second access network device may receive the first parameter information and the second parameter information sent by the first access network device, so that the terminal moves to the second access network in the RRC-inactive state After the coverage of the network device, the second access network device can page the terminal according to the first parameter information and the second parameter information.

A possible implementation manner, sending the paging message according to the first time domain location and the second time domain location shown, includes: in the first time unit, in the paging time unit where the first access network device exists, to the The terminal sends a paging message, or sends a paging message to the terminal in a paging time unit where the core network device exists; or, outside the first time unit, sends a paging message to the terminal in a paging time unit where the first access network device exists Send a paging message. Based on the above method, within the first time unit, the second access network device and the core network device have a paging time in the paging time unit existing in the second access network device and the paging time unit existing in the core network device Sending a paging message in the unit can reduce the number of times the terminal is woken up and reduce the power consumption of the terminal.

In a possible implementation manner, within the first time unit, the discontinuous reception DRX cycle for sending the paging message by the second access network device is the default DRX cycle; or, the DRX cycle for sending the paging message by the second access network device The cycle is a terminal-specific DRX cycle; or, the DRX cycle of the second access network device sending the paging message is the DRX cycle of the access network device; or, the DRX cycle of the second access network device sending the paging message is the default DRX cycle DRX cycle, the minimum or maximum value between the terminal-specific DRX cycle and the DRX cycle of the access network device; outside the first time unit, the DRX cycle of the second access network device sending the paging message is the default DRX cycle; Or, the DRX cycle of the paging message sent by the second access network device is the DRX cycle of the access network device; or, the DRX cycle of the paging message sent by the second access network device is the default DRX cycle and the DRX cycle of the access network device. The minimum or maximum value in the DRX cycle. Based on the above method, the DRX cycle for sending the paging message by the second access network device in different situations is given.

In a seventeenth aspect, an embodiment of the present application provides a communication device, which can implement the method in any possible implementation manner of the foregoing first aspect, or implement the method in any possible implementation manner of the foregoing fifth aspect. The method, or the method in any possible implementation manner of the ninth aspect above, or the method in any possible implementation manner of the thirteenth aspect above can be implemented. The apparatus comprises corresponding units or components for carrying out the above-described method. The units included in the apparatus may be implemented by software and/or hardware. The apparatus may be, for example, a first access network device, or a chip, a chip system, or a processor that can support the first access network device to implement the foregoing method.

In an eighteenth aspect, an embodiment of the present application provides a communication device, which can implement the method in any possible implementation manner of the foregoing second aspect, or implement the method in any possible implementation manner of the foregoing sixth aspect. The method, or the method in any possible implementation manner of the tenth aspect above, or the method in any possible implementation manner of the fourteenth aspect above can be implemented. The apparatus comprises corresponding units or components for carrying out the above-described method. The units included in the apparatus may be implemented by software and/or hardware. The apparatus may be, for example, a terminal, or a chip, a chip system, or a processor that can support the terminal to implement the above method.

In a nineteenth aspect, an embodiment of the present application provides a communication device, which can implement the method in any possible implementation manner of the foregoing third aspect, or implement the method in any possible implementation manner of the foregoing seventh aspect. The method, or the method in any possible implementation manner of the eleventh aspect above, or the method in any possible implementation manner of the fifteenth aspect above can be implemented. The apparatus comprises corresponding units or components for carrying out the above-described method. The units included in the apparatus may be implemented by software and/or hardware. The apparatus may be, for example, a core network device, or a chip, a chip system, or a processor that can support the core network device to implement the above method.

In a twentieth aspect, an embodiment of the present application provides a communication device, which can implement the method in any possible implementation manner of the foregoing fourth aspect, or implement the method in any possible implementation manner of the foregoing eighth aspect. method, or can implement the method in any possible implementation manner of the twelfth aspect above, or can implement the method in any possible implementation manner of the sixteenth aspect above. The apparatus comprises corresponding units or components for carrying out the above-described method. The units included in the apparatus may be implemented by software and/or hardware. The apparatus may be, for example, a second access network device, or a chip, a chip system, or a processor that can support the second access network device to implement the foregoing method.

In a twenty-first aspect, an embodiment of the present application provides a communication device, which can be used to implement the method in any possible implementation manner of the foregoing first aspect, or can be used to implement any possible implementation manner of the foregoing fifth aspect The method in the implementation manner of the above, or can be used to implement the method in any possible implementation manner of the ninth aspect above, or can be used to implement the method in any possible implementation manner of the thirteenth aspect above.

In a twenty-second aspect, an embodiment of the present application provides a communication device, which can be used to implement the method in any possible implementation manner of the foregoing second aspect, or can be used to implement any one of the possible implementation manners of the foregoing sixth aspect The method in the implementation manner of the above-mentioned tenth aspect may be used to implement the method in any possible implementation manner of the above tenth aspect, or may be used to implement the method in any possible implementation manner of the above-mentioned fourteenth aspect.

In a twenty-third aspect, an embodiment of the present application provides a communication device, which can be used to implement the method in any possible implementation manner of the foregoing third aspect, or can be used to implement any one of the possible implementation manners of the foregoing seventh aspect or can be used to implement the method in any possible implementation of the eleventh aspect above, or can be used to implement the method in any possible implementation of the fifteenth aspect above .

In a twenty-fourth aspect, an embodiment of the present application provides a communication device, which can be used to implement the method in any possible implementation manner of the foregoing fourth aspect, or can be used to implement any one of the possible implementation manners of the foregoing eighth aspect. or can be used to implement the method in any possible implementation of the twelfth aspect above, or can be used to implement the method in any possible implementation of the sixteenth aspect above .

In a twenty-fifth aspect, an embodiment of the present application provides a communication device, including: a processor, the processor is coupled to a memory, the memory is used to store a program or an instruction, when the program or instruction is executed by the processor When executed, the device is made to implement the method in any possible implementation manner of the first aspect above, or the method in any possible implementation manner of the fifth aspect above, or implement any one of the above ninth aspects. A method in one possible implementation manner, or a method in any one possible implementation manner of the thirteenth aspect above.

In a twenty-sixth aspect, an embodiment of the present application provides a communication device, including: a processor, the processor is coupled to a memory, the memory is used to store a program or an instruction, when the program or instruction is executed by the processor When executed, the device can implement the method in any possible implementation manner of the above second aspect, or can implement the method in any possible implementation manner of the above sixth aspect, or can implement the above tenth aspect. The method in any possible implementation manner of , or the method in any possible implementation manner of the above fourteenth aspect can be implemented.

In a twenty-seventh aspect, an embodiment of the present application provides a communication device, including: a processor, the processor is coupled to a memory, and the memory is used to store a program or an instruction, when the program or instruction is executed by the processor When executed, the device can implement the method in any possible implementation manner of the above third aspect, or can implement the method in any possible implementation manner of the above seventh aspect, or can implement the above eleventh aspect The method in any possible implementation manner of the aspect, or the method in any possible implementation manner of the fifteenth aspect above may be implemented.

In a twenty-eighth aspect, an embodiment of the present application provides a communication device, including: a processor, the processor is coupled to a memory, the memory is used to store a program or an instruction, when the program or instruction is executed by the processor When executed, the device can implement the method in any possible implementation manner of the above fourth aspect, or can implement the method in any possible implementation manner of the above eighth aspect, or can implement the above twelfth aspect. The method in any possible implementation manner of the aspect, or the method in any possible implementation manner of the sixteenth aspect above can be implemented.

In a twenty-ninth aspect, an embodiment of the present application provides a chip system, where the chip system includes at least one processor for implementing the method in any possible implementation manner of the foregoing first aspect, or may be used for implementing the foregoing The method in any possible implementation manner of the fifth aspect, or can be used to implement the method in any possible implementation manner of the ninth aspect above, or can be used to implement any one of the thirteenth aspect above methods in possible implementations.

In a thirtieth aspect, an embodiment of the present application provides a chip system, where the chip system includes at least one processor, and is used to implement the method in any possible implementation manner of the second aspect above, or can be used to implement the above-mentioned first The method in any possible implementation manner of the sixth aspect, or can be used to implement the method in any possible implementation manner of the above tenth aspect, or can be used to implement any one of the above-mentioned possible implementation methods of the fourteenth aspect. method in the implementation.

In a thirty-first aspect, an embodiment of the present application provides a chip system, where the chip system includes at least one processor, and is used to implement the method in any possible implementation manner of the third aspect above, or can be used to implement the above The method in any possible implementation manner of the seventh aspect, or can be used to implement the method in any possible implementation manner of the eleventh aspect above, or can be used to implement any of the fifteenth aspect above method in one possible implementation.

In a thirty-second aspect, an embodiment of the present application provides a chip system, where the chip system includes at least one processor, and is used to implement the method in any possible implementation manner of the fourth aspect above, or can be used to implement the above The method in any possible implementation manner of the eighth aspect, or can be used to implement the method in any possible implementation manner of the above-mentioned twelfth aspect, or can be used to implement any of the above-mentioned sixteenth aspects. method in one possible implementation.

In a possible implementation manner of the twenty-ninth aspect, the thirtieth aspect, the thirty-first aspect or the thirty-second aspect, the chip system further includes a memory, and the memory is used for storing program instructions and data, The memory is either inside the processor or outside the processor. The chip system may be composed of chips, or may include chips and other discrete devices.

In a thirty-third aspect, an embodiment of the present application provides a computer-readable medium on which a computer program or instruction is stored, and when the computer program or instruction is executed, enables a computer to perform any possible implementation of the first aspect above The method described in the method, or the method described in any possible implementation manner of the fifth aspect above, or the method described in any possible implementation manner of the ninth aspect above, or the tenth aspect above The method described in any one possible implementation manner of the three aspects.

In a thirty-fourth aspect, an embodiment of the present application provides a computer-readable medium on which a computer program or instruction is stored, and when the computer program or instruction is executed, enables a computer to perform any possible implementation of the second aspect above The method described in the method, or the method described in any possible implementation manner of the above sixth aspect, or the method described in any possible implementation manner of the above tenth aspect, or the above fourteenth aspect A method as described in any possible implementation of the aspect.

In a thirty-fifth aspect, an embodiment of the present application provides a computer-readable medium on which a computer program or instruction is stored, and when the computer program or instruction is executed, enables a computer to perform any possible implementation of the third aspect above method, or the method described in any possible implementation manner of the seventh aspect above, or the method described in any possible implementation manner of the eleventh aspect above, or the tenth aspect above The method described in any one possible implementation manner of the five aspects.

In a thirty-sixth aspect, an embodiment of the present application provides a computer-readable medium on which a computer program or instruction is stored, and when the computer program or instruction is executed, enables a computer to perform any possible implementation of the fourth aspect above The method described in the method, or the method described in any possible implementation manner of the eighth aspect above, or the method described in any possible implementation manner of the twelfth aspect above, or the tenth aspect above The method described in any one possible implementation manner of the six aspects.

In a thirty-seventh aspect, an embodiment of the present application provides a computer program product, which includes computer program code, and when the computer program code runs on a computer, causes the computer to execute any of the possible implementations of the first aspect above. The method, or the method described in any possible implementation manner of the fifth aspect above, or the method described in any possible implementation manner of the ninth aspect above, or the thirteenth aspect above The method described in any of the possible implementations of .

In a thirty-eighth aspect, an embodiment of the present application provides a computer program product, which includes computer program code, and when the computer program code runs on a computer, causes the computer to execute any of the possible implementations of the second aspect above. The method described above, or the method described in any possible implementation manner of the above sixth aspect, or the method described in any possible implementation manner of the above tenth aspect, or the above fourteenth aspect. The method described in any of the possible implementations.

In a thirty-ninth aspect, an embodiment of the present application provides a computer program product, which includes computer program code, and when the computer program code runs on a computer, causes the computer to execute any of the possible implementations of the third aspect above. The method, or the method described in any possible implementation manner of the seventh aspect above, or the method described in any possible implementation manner of the eleventh aspect above, or the fifteenth aspect above The method described in any of the possible implementations of .

In a fortieth aspect, an embodiment of the present application provides a computer program product, which includes computer program code, and when the computer program code runs on a computer, the computer program code enables the computer to execute any of the possible implementations of the fourth aspect above. The method described above, or the method described in any possible implementation of the eighth aspect above, or the method described in any possible implementation of the twelfth aspect above, or the method described in the sixteenth aspect above. The method described in any of the possible implementations.

In a forty-first aspect, an embodiment of the present application provides a communication system. The system includes the device of the seventeenth aspect and/or the eighteenth aspect and/or the nineteenth aspect, or the system includes the twenty-first aspect and/or the twenty-second aspect and/or Or the device described in the above twenty-third aspect, or the system includes the communication device described in the above-mentioned twenty-fifth aspect and/or the above-mentioned twenty-sixth aspect and/or the above-mentioned twenty-seventh aspect, or the system includes The chip system according to the aforementioned twenty-ninth aspect and/or the aforementioned thirtieth aspect and/or the aforementioned thirty-first aspect, or the system includes the aforementioned thirty-third aspect and/or the aforementioned thirty-fourth aspect and/ Or the computer-readable medium described in the above thirty-fifth aspect, or the system includes the computer program product described in the above-mentioned thirty-seventh aspect and/or the above-mentioned thirty-eighth aspect and/or the above-mentioned thirty-ninth aspect.

In a forty-second aspect, an embodiment of the present application provides a communication system. The system includes the apparatus of the seventeenth aspect and/or the eighteenth aspect and/or the nineteenth aspect and/or the twentieth aspect, or the system includes the twenty-first aspect and/or The device according to the above twenty-second aspect and/or the above-mentioned twenty-third aspect and/or the above-mentioned twenty-fourth aspect, or the system includes the above-mentioned twenty-fifth aspect and/or the above-mentioned twenty-sixth aspect and/ Or the communication device described in the above twenty-seventh aspect and/or the above-mentioned twenty-eighth aspect, or the system includes the above-mentioned twenty-ninth aspect and/or the above-mentioned thirtieth aspect and/or the above-mentioned thirty-first aspect and /or the chip system described in the above thirty-second aspect, or the system includes the above-mentioned thirty-third aspect and/or the above-mentioned thirty-fourth aspect and/or the above-mentioned thirty-fifth aspect and/or the above-mentioned thirty-sixth aspect The computer-readable medium described in the aspect, or the system comprises the computer program described in the above-mentioned thirty-seventh aspect and/or the above-mentioned thirty-eighth aspect and/or the above-mentioned thirty-ninth aspect and/or the above-mentioned fortieth aspect product.

Optionally, this embodiment of the present application further provides a first access network device, including:

a processor and a communication interface, the communication interface used for the first access network device to communicate, the processor is coupled to a memory, the memory is used to store a program or instruction, when the program or instruction is used by the When executed by the processor, the first access network device is caused to execute the method executed by the first access network device in any embodiment of the present application.

Optionally, an embodiment of the present application further provides a terminal, including:

a processor and a communication interface, the communication interface is used for the terminal to communicate, the processor is coupled with a memory, the memory is used for storing programs or instructions, when the programs or instructions are executed by the processor, The terminal is caused to execute the method executed by the terminal in any embodiment of the present application.

Optionally, an embodiment of the present application further provides a core network device, including:

a processor and a communication interface for the core network to communicate, the processor coupled to a memory for storing programs or instructions when the programs or instructions are executed by the processor , so that the core network device executes the method executed by the core network device in any embodiment of the present application.

Optionally, this embodiment of the present application further provides a second core network device, including:

a processor and a communication interface for the core network to communicate, the processor coupled to a memory for storing programs or instructions when the programs or instructions are executed by the processor , so that the core network device executes the method executed by the second access network device in any embodiment of the present application.

Optionally, an embodiment of the present application further provides a communication apparatus for executing the method provided by any embodiment of the present application, and the communication apparatus is, for example, a chip, a terminal, a first access network device, a second access network network equipment, core network equipment, etc.

Optionally, an embodiment of the present application further provides a communication device, including a processor, where the processor is coupled to a memory, and the memory is used to store a program or an instruction, and when the program or instruction is executed by the processor, The communication apparatus is caused to execute the method executed by the core network device in any embodiment of the present application. The communication device is, for example, a chip, a terminal, a first access network device, a second access network device, a core network device, and the like.

It can be understood that any of the communication devices, chip systems, computer-readable media, computer program products or communication systems provided above are all used to execute the corresponding methods provided above, and therefore, the beneficial effects that can be achieved. The beneficial effects in the corresponding method can be referred to, and details are not repeated here.

Description of drawings

Fig. 1 is a kind of schematic diagram of DRX and eDRX;

2A is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

FIG. 2B is a schematic structural diagram of an access network device provided by an embodiment of the present application;

3 is a schematic diagram of a hardware structure of a communication device provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart 1 of a communication method provided by an embodiment of the present application;

FIG. 5 is a second schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 6 is a third schematic flowchart of a communication method provided by an embodiment of the present application;

7A is a schematic diagram 1 of a time domain location of a paging message provided by an embodiment of the present application;

7B is a second schematic diagram of a time domain location of a paging message provided by an embodiment of the present application;

7C is a schematic diagram 3 of a time domain location of a paging message provided by an embodiment of the present application;

7D is a fourth schematic diagram of a time domain location of a paging message provided by an embodiment of the present application;

FIG. 8 is a fourth schematic flowchart of a communication method provided by an embodiment of the present application;

9 is a schematic diagram 5 of a time domain location of a paging message provided by an embodiment of the present application;

FIG. 10 is a fifth schematic flowchart of a communication method provided by an embodiment of the present application;

11 is a sixth schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 12 is a schematic structural diagram 1 of a communication device provided by an embodiment of the present application;

FIG. 13 is a second schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 14 is a third schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 15 is a fourth schematic structural diagram of a communication apparatus provided by an embodiment of the present application.

Detailed ways

In a communication system, a terminal may be in a radio resource control connected (radio resource control connected, RRC-connected) state, an RRC-idle state or an RRC-inactive state. In this embodiment of the present application, the RRC-connected state may be replaced with an RRC-connected state, an RRC connected state, a first state, a first state, or other names that can indicate that the terminal is in the RRC-connected state, or the like. The RRC-idle state may be replaced by the RRC-idle state, the RRC idle state, the second state, the second state, or other names that can indicate that the terminal is in the RRC-idle state. The RRC-inactive state may be replaced by the RRC-inactive state, the RRC inactive state, the third state, the third state, or other names that can indicate that the terminal is in the RRC-inactive state, etc., without limitation.

When the terminal is in the RRC-connected state, the access network device knows that the terminal is within the coverage or management range of the access network device. The core network device knows which access network device the terminal is covered by or within the management range. The access network equipment and the terminal may perform data channel and/or control channel transmission. For example, the access network device may send a terminal-specific physical downlink control channel (PDCCH) and/or a terminal-specific physical downlink shared channel (PDSCH) to the terminal, and the terminal may also send a terminal to the access network. The network device sends a terminal-specific physical uplink shared channel (PUSCH) and/or a terminal-specific physical uplink control channel (PUCCH).

When the terminal is in the RRC-idle state, the access network device does not know whether the terminal is within the coverage of the access network device or whether it is within the management range of the access network device. The core network device does not know which access network device the terminal is covered by or within the management range. The terminal may receive the paging message of the core network device. However, the terminal cannot perform unicast data transmission with the access network device. For example, the terminal cannot receive the terminal-specific PDSCH and PDCCH from the access network device, and the terminal cannot send the terminal-specific PUSCH and PUCCH to the access network device. .

When the terminal is in the RRC-inactive state, the access network device does not know whether the terminal is within the coverage of the access network device or whether it is within the management range of the access network device. The core network device knows which access network device the terminal is covered by or within the management range. The terminal may receive a paging message from the access network device or the core network device.

In this embodiment of the present application, receiving a paging message of an access network device by a terminal may be understood as the terminal receiving a paging message from an access network device, or that the paging message is used by the access network device to page the terminal. When the terminal receives the paging message of the core network, it can be understood that the terminal receives the paging message from the core network, or the paging message is used by the core network device to page the terminal. The terminal receiving the paging message from the core network device can be understood as: the terminal receives the paging message from the core network device through the access network device. Correspondingly, sending the paging message by the core network device to the terminal can be understood as: the core network device sends the paging message to the terminal through the access network device. That is, the core network device first sends the paging message to the access network device, and after receiving the paging message, the access network device sends the paging message to the terminal. A unified description is made here, which will not be repeated hereafter.

In the communication system, the terminal can also switch between the RRC-connected state, the RRC-idle state and the RRC-inactive state. For example, when the terminal is in the RRC-connected state, after receiving the RRC release (RRC release) message from the access network device, it can release the RRC connection between the terminal and the access network device, and switch to the RRC-idle state or RRC-inactive state. Optionally, after the terminal transitions to the RRC-inactive state, the access network device may send an RRC inactive transition report (RRC inactive transition report) to the core network device to notify the core network device that the terminal transitions to the RRC-inactive state. When the terminal is in the RRC-idle state, after receiving the paging message from the access network device, the RRC establishment process may be initiated, or the RRC establishment process may be triggered by the upper layer of the terminal. Subsequently, the terminal attempts to establish an RRC connection with the access network device to enter the RRC-connected state. When the terminal is in the RRC-inactive state, after receiving the paging message from the access network device, the RRC recovery process may be initiated, or the RRC recovery process may be triggered by the upper layer of the terminal. Subsequently, the terminal attempts to restore the RRC connection with the access network device to enter the RRC-connected state. In addition, when the terminal is in the RRC-inactive state, it can also receive an RRC release (RRC release) message from the access network device, and switch from the RRC-inactive state to the RRC-idle state.

In a possible implementation manner, in the RRC-inactive state or the RRC-idle state, the terminal may use the DRX mode or the eDRX mode to receive the paging message. For example, Table 1 shows the cases in which different types of terminals use the DRX mode or the eDRX mode to receive paging messages. In Table 1, the long term evolution (LTE) terminal does not support eDRX, but supports DRX, and the maximum period of DRX in the RRC-idle state and the RRC-inactive state is both 2.56 seconds (s). The eMTC terminal supports eDRX. The maximum eDRX period in the RRC-idle state is about 44 minutes (min), and the maximum eDRX period in the RRC-inactive state is 10.24s. The NB-IoT terminal does not have an RRC-inactive state, and the NB-IoT terminal supports eDRX. The maximum eDRX period in the RRC-idle state is about 3 hours (h). The NR terminal does not support eDRX, but supports DRX. The maximum period of DRX in both RRC-idle state and RRC-inactive state is 2.56s.

Table 1

	RRC-idle状态RRC-idle state	RRC-inactive状态RRC-inactive state
LTE终端LTE terminal	DRX最大周期为2.56sThe maximum cycle of DRX is 2.56s	DRX最大周期为2.56sThe maximum cycle of DRX is 2.56s
eMTC终端eMTC terminal	eDRX最大周期约为44minThe maximum period of eDRX is about 44min	eDRX最大周期为10.24seDRX maximum cycle is 10.24s
NB-IoT终端NB-IoT terminal	eDRX最大周期为约3hThe maximum period of eDRX is about 3h	--
NR终端NR terminal	DRX最大周期为2.56sThe maximum cycle of DRX is 2.56s	DRX最大周期为2.56sThe maximum cycle of DRX is 2.56s

It can be seen from Table 1 that LTE terminals and NR terminals do not support eDRX. In order to further reduce the power consumption of the terminal, it is proposed that the terminals in the communication systems that do not support eDRX, such as REDCAP terminals, also support eDRX. For example, in the RRC-idle state, the REDCAP terminal can use eDRX mode to receive paging messages from core network devices; or, in the RRC-inactive state, the REDCAP terminal can use eDRX mode to receive paging messages from access network devices or core network devices. call message.

At present, for an eMTC terminal, in the RRC-idle state, it can wake up according to the DRX cycle at the position of the PTW in each eDRX cycle to receive messages from the core network device. In the RRC-inactive state, the eMTC terminal can be woken up according to the DRX cycle at the position of the PTW in each eDRX cycle to receive messages from the core network device and the access network device. In addition to the PTW in each eDRX cycle, For example, a message from an access network device is received at the PO's location. However, in the RRC-inactive state, the REDCAP terminal supports not only receiving the paging message of the access network device at the PO position, but also receiving the paging message of the access network device in the PTW. In this case, it is necessary to configure the position of the PTW that receives messages from the core network device in the RRC-idle state and the RRC-inactive state for the REDCAP terminal, and also configure the REDCAP terminal to receive the access network device in the RRC-inactive state. The location of the PTW of the message. Therefore, the method of configuring eDRX parameters for eMTC terminals is not applicable to REDCAP terminals. Then, how to configure the eDRX parameters in the RRC-idle state and the RRC-inactive state for the REDCAP terminal is an urgent problem to be solved at present.

In order to solve the above problems, the embodiments of the present application provide two solutions. In the first solution, the core network device can configure eDRX parameters in the RRC-idle state and the RRC-inactive state. Before the terminal enters the RRC-inactive state, the access network device can determine whether to change the eDRX parameters configured by the core network device according to the situation. If the access network device determines not to change the eDRX parameters configured by the core network device, in the RRC-idle state or the RRC-inactive state, the terminal receives the access network device or the core network device according to the eDRX parameters configured by the core network device. call message. If the access network device determines to change the eDRX parameters configured by the core network device, in the RRC-idle state or the RRC-inactive state, the terminal receives the paging message from the access network device or the core network device according to the changed eDRX parameters. In this solution, the access network device can change the eDRX parameters configured by the core network device, thereby reducing the delay for the terminal to receive the paging message and improving the user experience. In addition, in this solution, the terminal can receive the paging message of the core network device and the paging message of the access network device according to the same eDRX parameters, which is easy to implement and has high feasibility. The introduction of the first solution can be described with reference to the methods shown in FIGS. 4-5 below.

In the first solution, when the terminal receives the paging message of the core network device and the paging message of the access network device, the eDRX parameters used are the same. However, in a communication system, the interval at which the core network device sends the paging message is usually longer than the interval at which the access network device sends the paging message. Therefore, if the terminal receives the paging message of the access network device according to the eDRX parameters configured by the core network device, it will cause a long delay and poor user experience. If the terminal receives the paging message of the core network device according to the eDRX parameters configured by the access network device, the power consumption of the terminal will be large and the battery life will be shortened.

In order to take into account the delay of the terminal receiving the paging message of the access network device and the power consumption of the terminal, in the second solution, the core network device and the access network device may be configured with eDRX parameters respectively. The eDRX parameters configured by the core network device can be used by the terminal to receive paging messages from the core network device in the RRC-idle state or in the RRC-inactive state, and the eDRX parameters configured by the access network device can be used by the terminal in the RRC-inactive state to receive paging messages Paging messages from access network devices. In this solution, if both the paging time unit of the core network device and the paging time unit of the access network device exist in the first time unit, the terminal can receive the core network device in one of the paging time units The paging message and/or the paging message of the access network device. If within the first time unit, there is a paging time unit of the core network device and no paging time unit of the access network device, the terminal receives the paging message of the core network device in the paging time unit of the core network device . If within the first time unit, there is a paging time unit of the access network device and no paging time unit of the core network device, the terminal receives the paging time unit of the access network device in the paging time unit of the access network device call message. In this way, the terminal can receive the paging messages of the access network equipment and the core network equipment according to the appropriate eDRX parameters, which can not only reduce the delay, improve the user experience, but also reduce the power consumption of the terminal. The first time unit may be a superframe. The paging time unit may include PTW or PO. The introduction of the second solution can be described with reference to the methods shown in FIG. 6 and FIG. 8 below.

It can be understood that the embodiments of this application are all described by taking the terminal receiving the paging message in the eDRX mode as an example. In specific applications, the terminal can also use the eDRX mode to receive broadcast messages, system information, earthquake and tsunami warning system (ETWS), etc., without limitation. For the process that the terminal uses the eDRX mode to receive broadcast messages, system information, and ETWS, reference may be made to the introduction of the terminal using the eDRX mode to receive paging messages in the embodiments of the present application, and details are not repeated.

In order to facilitate understanding of the methods provided in the embodiments of the present application, eDRX is first described.

In this embodiment of the present application, the eDRX cycle may be in units of hyperframes, for example, the eDRX cycle is 2 superframes or 3 superframes. A superframe can be 10.24s. It should be understood that, in specific applications, the eDRX cycle may also take other time units as a unit, which is not limited.

In a possible implementation manner, the eDRX cycle includes at least one paging occasion (paging occasion, PO). If the eDRX cycle includes one PO, the terminal is woken up once at the PO position in the eDRX cycle to receive a paging message. In this case, the eDRX cycle is the length of time between two adjacent POs. Specifically, it can be shown as (c) in FIG. 1 . If the eDRX cycle includes multiple POs, the time window for receiving multiple POs may be referred to as PTW. In the PTW, the time length between two adjacent POs is the DRX cycle. Within the PTW, the terminal is woken up once at each PO location to receive paging messages. In this case, the eDRX cycle is the length of time between the start/end positions of two adjacent PTWs. As an example, if the eDRX cycle is greater than the second time length, the eDRX cycle includes multiple POs, or the eDRX cycle includes PTW; the eDRX cycle is less than or equal to the second time length, then the eDRX cycle includes one PO, and the eDRX cycle includes one PO. The second time length can be 5.12s, 10.24s, etc., without limitation. In the following, the method for determining the position of the PTW when the eDRX cycle includes multiple POs, and the method for determining the position of the PO when the eDRX cycle includes one PO will be described in detail.

1. How to determine the position of the PTW

A possible implementation manner, a paging hyperframe (paging hyperframe, PH) may be a hypersystem frame number (H-SFN) satisfying the following formula: H-SFN mod T _eDRX,H =(UE_ID_H mod T _eDRX,H ). Among them, PH can be called the superframe number where the paging message is located, and mod is a modulo operator. T _eDRX,H is the eDRX period, and the unit is superframe. UE_ID_H is a value corresponding to the highest 12 bits or 10 bits in the hashed ID. For example, if the paging radio network temporary identifier (P-RNTI) is monitored on the PDCCH or the MTC physical downlink control channel (MPDCCH), the UE_ID_H is the highest hashed ID 10 bits correspond to the value. If the P-RNTI listens on a narrowband physical downlink control channel (narrowband physical downlink control channel, NPDCCH), UE_ID_H is a value corresponding to the highest 12 bits in the hashed ID. In the NR system, the hashed ID may be a 5th generation (5th generation, 5G) system architecture evolved temporary mobile subscriber identity (5G-system architecture evolved-temporary mobile subscriber identity, 5G-S-TMSI).

In a possible implementation manner, the system frame number (system frame number, SFN) where the starting position of the PTW is located satisfies the following formula: SFN=256*i _eDRX . Wherein, i _eDRX satisfies the following formula: i _eDRX =floor(UE_ID_H/T _eDRX,H )mod 4, and floor( ) is a round-down symbol. The SFN where the end position of the PTW is located satisfies the following formula: SFN=(PTW_start+L*100-1)mod 1024. Wherein, PTW_start is the SFN where the starting position of the PTW is located, L is the length of the PTW, and the unit of L may be seconds. In this way, the position of the first PTW after the terminal enters the RRC-idle state or the RRC-inactive state can be determined.

It can be understood that after the position of the first PTW is determined, the position of the second PTW, the position of the third PTW, and so on can be determined according to the eDRX cycle. For example, the start position of the second PTW is the sum of the start position of the first PTW and the eDRX cycle, and the end position of the second PTW is the sum of the start position of the second PTW and the length of the PTW, or, the first The end position of the second PTW is the sum of the end position of the first PTW and the eDRX cycle.

2. How to determine the position of PO

A possible implementation manner, a paging frame (paging frame, PF) may be an SFN satisfying the following formula: SFN mod T=(T div N)*(UE_ID mod N). Among them, PF is the system frame number where the paging message is located, T is the DRX cycle, and div is the divisible symbol. If the P-RNTI is monitored on the PDCCH, the UE_ID is 5G-S-TMSI mod 1024. If the P-RNTI is monitored on MPDCCH or NPDCCH, the UE_ID is 5G-S-TMSI mod 16384. N is the minimum of T and nB, nB can be 4T, 2T, T, T/2, T/4, T/8, T/16, T/32, T/64, T/128 or T/256 . For NB-IoT terminals, nB can also be T/512 or T/1024. The subframe number i_s where the PO is located may satisfy the following formula: i_s=floor(UE_ID/N)modNs. where Ns is the maximum value of 1 and nB/T. In this way, the position of the first PO after the terminal enters the RRC-idle state or the RRC-inactive state can be determined.

Understandably, after the position of the first PO is determined, the position of the second PO, the position of the third PO, and so on can be determined according to the eDRX cycle. For example, the position of the second PO is the sum of the position of the first PO and the eDRX cycle.

The implementation of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The methods provided in the embodiments of the present application can be used in various communication systems. For example, the communication system may be an LTE system, a 5G communication system, a wireless-fidelity (WiFi) system, a communication system related to the 3rd generation partnership project (3GPP), a future evolution communication system, or a system that integrates multiple systems, etc., without limitation. Among them, 5G can also be called NR. The method provided by the embodiment of the present application is described below by taking the communication system 20 shown in FIG. 2A as an example.

As shown in FIG. 2A , it is a schematic structural diagram of a communication system 20 according to an embodiment of the present application. In FIG. 2A, the communication system 20 may include one or more core network devices 206 (only one is shown), an access network device 201 and an access network device 202 communicatively connected to the core network device 206, and an access network device 202. A terminal 203 and a terminal 204 are communicatively connected to the device 201 , and a terminal 205 is communicatively connected to the access network device 202 . FIG. 2A is only a schematic diagram, and does not constitute a limitation on the applicable scenarios of the technical solutions provided in the present application.

In FIG. 2A , the core network device 206 may be a mobility management network element, which is mainly responsible for terminal access authentication, mobility management, and signaling interaction between various functional network elements, such as: registration status of users, The user's connection status, user registration and access to the network, tracking area update, cell handover user authentication and key security are managed. As an example, if the communication system 20 is a 5G communication system, the network element or entity corresponding to the mobility management network element may be an access and mobility management function (AMF). In the embodiment of the present application, the device for implementing the function of the core network device may be the core network device; it may also be a device capable of supporting the core network device to realize the function, such as a chip system, and the device may be installed in the core network device Or use it with core network equipment. In this embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices. In the method provided by the embodiment of the present application, the method provided by the embodiment of the present application is described by taking the device for implementing the function of the core network device as the core network device as an example.

In FIG. 2A, an access network device may provide a wireless access service for a terminal. Specifically, each access network device corresponds to a service coverage area, and a terminal entering the area can communicate with the access network device through the Uu port to receive wireless access services provided by the access network device. Optionally, the service coverage area may include one or more cells. The terminal and the access network device can communicate through the Uu interface link. The Uu interface link can be divided into an uplink (uplink, UL) and a downlink (downlink, DL) according to the direction of the data transmitted thereon. The uplink data sent from the terminal to the access network equipment can be transmitted on the UL, and the downlink data transmitted from the access network equipment to the terminal can be transmitted on the DL. For example, in FIG. 2A, the terminal 203 is located in the coverage area of the access network device 201, the access network device 201 can send downlink data to the terminal 203 through DL, and the terminal 203 can send uplink data to the access network device 201 through UL.

The access network device in this embodiment of the present application, for example, the access network device 201 or the access network device 202 may be any device with a wireless transceiver function. Including but not limited to: evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in LTE, base station (gNodeB or gNB) or transceiver point (transmission receiving point/transmission receiving point, TRP) in NR, 3GPP Subsequent evolution of base stations, access nodes in WiFi systems, wireless relay nodes, wireless backhaul nodes, etc. The base station can be: a macro base station, a micro base station, a pico base station, a small base station, a relay station, or a balloon station, etc. Multiple base stations may support the above-mentioned networks of the same technology, or may support the above-mentioned networks of different technologies. A base station may contain one or more co-sited or non-co-sited TRPs. The access network device may also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario. The access network device may also be a centralized unit (centralized unit, CU), and/or a distributed unit (distributed unit, DU). The access network device may also be a server, a wearable device, a machine communication device, or a vehicle-mounted device. The following description is given by taking the access network device as the base station as an example. The multiple access network devices may be base stations of the same type, or may be base stations of different types. The base station can communicate with the terminal, and can also communicate with the terminal through the relay station. The terminal can communicate with multiple base stations of different technologies. For example, the terminal can communicate with the base station supporting the LTE network, and can also communicate with the base station supporting the 5G network, and can also support dual connection with the base station of the LTE network and the base station of the 5G network. . In the embodiment of the present application, the device for implementing the function of the access network device may be the access network device; it may also be a device capable of supporting the access network device to realize the function, such as a chip system, and the device may be installed in the access network device. It can be used in the network access device or matched with the access network device. In this embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices. In the method provided by the embodiment of the present application, the method provided by the embodiment of the present application is described by taking the device for implementing the function of the access network device as an example of the access network device.

A terminal in this embodiment of the present application, for example, a terminal 203, a terminal 204, or a terminal 205 is a device with a wireless transceiver function. Terminals can be deployed on land, including indoor or outdoor, handheld or vehicle; can also be deployed on water (such as ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.). A terminal may also be referred to as a terminal device, and the terminal device may be a user equipment (UE), where the UE includes a handheld device, a vehicle-mounted device, a wearable device, or a computing device with a wireless communication function. Exemplarily, the UE may be a mobile phone, a tablet computer, or a computer with a wireless transceiver function. The terminal device may also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, intelligent A wireless terminal in a power grid, a wireless terminal in a smart city, or a wireless terminal in a smart home, etc. In this embodiment of the present application, the device for implementing the function of the terminal may be a terminal; it may also be a device capable of supporting the terminal to implement the function, such as a chip system, which may be installed in the terminal or used in combination with the terminal. In this embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices. In the method provided by the embodiment of the present application, the method provided by the embodiment of the present application is described by taking the device for realizing the function of the terminal as a terminal as an example.

As an example and not a limitation, in this application, the terminal may be a wearable device. Wearable devices can also be called wearable smart devices. Wearable technology is used to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. For example, a wearable device is not only a hardware device, but also a device that realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include devices with full functions, large sizes, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, and include only focusing on a certain type of application function, which needs to be integrated with other devices such as Devices used in conjunction with smartphones, such as various types of smart bracelets and smart jewelry that monitor physical signs.

In this application, the terminal may be a terminal in the Internet of Things (IoT) system. IoT is an important part of the future development of information technology. Machine interconnection, the intelligent network of the interconnection of things and things. The terminal in this application may be a terminal in machine type communication (MTC).

In this application, the terminal may also be a REDCAP terminal. REDCAP terminals can be divided into industrial wireless sensors, video cameras and wearable devices according to the type of use.

The communication system 20 shown in FIG. 2A is only used for example, and is not used to limit the technical solution of the present application. Those skilled in the art should understand that in the specific implementation process, the communication system 20 may also include other devices, and the number of core network devices, access network devices or terminals may also be determined according to specific needs, which is not limited.

In some embodiments, the access network device 201 and/or the access network device 202 may be a centralized unit-distributed unit separated architecture. That is, the access network device 201 and/or the access network device 202 may include a centralized unit and one or more distribution units. Among them, the centralized unit is mainly used for centralized wireless resource and connection management control, and has the function of the wireless high-level protocol stack, for example, the function of the packet data convergence protocol (PDCP) layer. Optionally, the centralized unit may be used to configure eDRX parameters. The distribution unit has distributed user plane processing functions, and mainly has physical layer functions and layer 2 functions with high real-time requirements. For example, the distribution unit has physical layer (physical layer, PHY) functions, media access control (media access control, MAC) layer function and radio link control (radio link control, RLC) layer function and so on. The distribution unit may also receive paging messages from the centralized unit and send the paging messages to the terminals. In this embodiment of the present application, the device for implementing the function of the centralized unit may be the centralized unit; it may also be a device capable of supporting the centralized unit to implement the function, such as a chip system, and the device may be installed in the centralized unit or combined with the centralized unit Match use. In this embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices. In the method provided by the embodiment of the present application, the method provided by the embodiment of the present application is described by taking the device for realizing the function of the centralized unit as the CU as an example. In this embodiment of the present application, the device for implementing the function of the distribution unit may be the distribution unit; it may also be a device capable of supporting the distribution unit to realize the function, such as a chip system, and the device may be installed in the distribution unit or combined with the distribution unit Match use. In the method provided by the embodiment of the present application, the method provided by the embodiment of the present application is described by taking the device for realizing the function of the distribution unit as a DU as an example.

Taking the access network device 201 as an example of a CU-DU separation architecture, the architecture of the access network device 201 may be as shown in FIG. 2B . In FIG. 2B, the access network device 201 includes a CU 2011, a DU 2012, and a DU 2013. Wherein, the DU 2012 and the DU 2013 can be connected to the terminal, for example, the DU 2012 is connected to the terminal 203, and the DU 2013 is connected to the terminal 204. The CU 2011 can be connected with other devices, for example, the CU 2011 is connected with the access network device 202. The CU 2011 may also be connected to the core network device 206.

It should be understood that the CU-DU architecture shown in FIG. 2B is only used for example, and is not used to limit the technical solution of the present application. Those skilled in the art should understand that in the specific implementation process, the above-mentioned CU-DU architecture can determine the number of CUs and DUs according to specific needs. It can also be deployed in different devices without limitation.

Optionally, the relevant functions of each network element (for example, the core network device 206, the access network device 201, the access network device 202, the terminal 203, the terminal 204, or the terminal 205) in FIG. 2A in this embodiment of the present application may be composed of a The device implementation may also be jointly implemented by multiple devices, or may be implemented by one or more functional modules in one device, which is not specifically limited in this embodiment of the present application. It is to be understood that the above-mentioned functions may be either network elements in hardware devices, or software functions running on dedicated hardware, or a combination of hardware and software, or virtualization instantiated on a platform (eg, a cloud platform) Function.

During specific implementation, each device or network element shown in FIG. 2A may adopt the composition structure shown in FIG. 3 , or include the components shown in FIG. 3 . FIG. 3 is a schematic diagram of a hardware structure of a communication device applicable to an embodiment of the present application. The communication apparatus 30 includes at least one processor 301 and at least one communication interface 304, and is used for implementing the method provided by the embodiment of the present application. The communication device 30 may also include a communication line 302 and a memory 303 .

The processor 301 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors for controlling the execution of the programs of the present application. integrated circuit.

Communication line 302 may include a path, such as a bus, to transfer information between the components described above.

A communication interface 304 for communicating with other devices or a communication network. The communication interface 304 can be any device such as a transceiver, such as an Ethernet interface, a radio access network (RAN) interface, a wireless local area network (WLAN) interface, a transceiver, a pin , bus, or transceiver circuit, etc.

Memory 303 may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM) or other types of information and instructions It can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, CD-ROM storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being executed by a computer Access any other medium without limitation. The memory may exist independently and be coupled to the processor 301 through the communication line 302 . The memory 303 may also be integrated with the processor 301 . The memory provided by the embodiments of the present application may generally be non-volatile. The memory 303 is used for storing computer-executed instructions involved in executing the solutions provided by the embodiments of the present application, and the execution is controlled by the processor 301 . The processor 301 is configured to execute the computer-executed instructions stored in the memory 303, so as to implement the method provided by the embodiments of the present application.

The computer-executed instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.

The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.

As an example, the processor 301 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 3 .

As an embodiment, the communication apparatus 30 may include multiple processors, such as the processor 301 and the processor 307 in FIG. 3 . Each of these processors can be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

As an embodiment, the communication apparatus 30 may further include an output device 305 and/or an input device 306 . Output device 305 is coupled to processor 301 and can display information in a variety of ways. For example, the output device 305 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait. Input device 306 is coupled to processor 301 and can receive user input in a variety of ways. For example, the input device 306 may be a mouse, a keyboard, a touch screen device, a sensor device, or the like.

It can be understood that the composition shown in FIG. 3 does not constitute a limitation on the communication device, and in addition to the components shown in FIG. some components, or a different arrangement of components.

The communication method provided by the embodiment of the present application is described below by taking the architecture shown in FIG. 2A as an example. Each network element in the following embodiments may have the components shown in FIG. 3 , which will not be repeated.

It should be noted that the names of messages between network elements or the names of parameters in the messages in the following embodiments of the present application are just an example, and other names may also be used in specific implementations, which are not specified in the embodiments of the present application. limited.

In order to facilitate the description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" may be used to distinguish technical features with the same or similar functions. The words "first", "second" and the like do not limit the quantity and execution order, and the words "first", "second" and the like do not limit the difference. In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or illustrations, and any embodiment or design solution described as "exemplary" or "for example" should not be construed are preferred or advantageous over other embodiments or designs. The use of words such as "exemplary" or "such as" is intended to present the relevant concepts in a specific manner to facilitate understanding.

It can be understood that the same step or steps or technical features with the same function in the embodiments of the present application may be referred to and referenced from each other between different embodiments.

It can be understood that, in the embodiments of the present application, a core network device, an access network device, or a terminal may perform some or all of the steps in the embodiments of the present application. These steps are only examples, and the embodiments of the present application may also perform other steps or various steps. Variation of steps. In addition, various steps may be performed in different orders presented in the embodiments of the present application, and it may not be necessary to perform all the steps in the embodiments of the present application.

As shown in FIG. 4 , a communication method is provided in an embodiment of the present application. In the method, a terminal may receive paging messages of a core network device and an access network device according to the same eDRX parameters. The communication method includes S401-S402.

S401: The access network device acquires first parameter information.

The access network device may be any access network device in the communication system 20 shown in FIG. 2A , for example, the access network device 201 or the access network device 202 .

The first parameter information may be used to indicate eDRX parameters. The eDRX parameter may be used by the core network device or the access network device to send the paging message in the eDRX mode, or the eDRX parameter may be used by the terminal to receive the paging message in the eDRX mode. The core network device may be a core network device in the communication system 20 that is communicatively connected to the access network device, for example, the core network device 206 . The terminal may be a terminal in the communication system 20 that is communicatively connected to the access network device. For example, if the access network device is the access network device 201 in the communication system 20, the terminal may be the terminal 203 or the terminal 204 in the communication system 20, and if the access network device is the access network device 202 in the communication system 20 , the terminal may be the terminal 205 in the communication system 20 . The first parameter information may replace the eDRX parameter information described as configured by the core network device, the common eDRX parameter information (common eDRX parameter information), etc., which is not limited.

In a possible implementation manner, the first parameter information includes the eDRX cycle. Optionally, the first parameter information further includes the length of the PTW; or, the first parameter information further includes the number of DRX cycles included in the PTW. It can be understood that, if the first parameter information includes the eDRX cycle, it may indicate that one PO is included in the eDRX cycle. If the first parameter information includes the eDRX cycle and the length of the PTW, or the first parameter information includes the eDRX cycle and the number of DRX cycles included in the PTW, it may indicate that the eDRX cycle includes multiple POs or PTWs.

The DRX cycle may be a default DRX cycle (default DRX cycle); or, the DRX cycle may be a terminal-specific DRX cycle (UE specific DRX cycle); or, the DRX cycle may be a DRX cycle (RAN DRX cycle) of an access network device cycle); or, the DRX cycle may be the minimum or maximum value among the default DRX cycle and the UE-specific DRX cycle; or, the DRX cycle may be the minimum or maximum value among the default DRX cycle and the RAN DRX cycle. For example, if the terminal receives a paging message from a core network device, the DRX cycle can be the default DRX cycle, or the UE-specific DRX cycle, or the minimum or maximum value between the default DRX cycle and the UE-specific DRX cycle. If the terminal receives a paging message from an access network device, the DRX cycle can be the default DRX cycle, or the RAN DRX cycle, or the minimum or maximum value between the default DRX cycle and the RAN DRX cycle.

In this embodiment of the present application, the default DRX cycle and the RAN DRX cycle may be configured by the access network device. As an example, the access network device may send the default DRX cycle to the terminal through a system information block (system information block, SIB). The access network device can send the RAN DRX cycle to the terminal through the RRC release message. The UE specific DRX cycle can be configured by the core network device. As an example, the core network device may send the UE specific DRX cycle to the terminal through a non-access stratum (non access stratum, NAS) message.

In a possible implementation manner, the access network device may obtain the first parameter information locally, or may obtain the first parameter information from other devices. If the access network device obtains the first parameter information locally, the first parameter information may be pre-configured locally, for example, the first parameter information is specified in the protocol, or the first parameter information may be the access network device Acquired from other devices in advance and stored locally. For example, the first parameter information may be acquired by the access network device in advance from the core network device and stored locally. If the access network device obtains the first parameter information from other devices, the access network device may receive the first parameter information from the core network device. The first parameter information may be a message, or may be a cell or a field included in the message, which is not limited. As an example, the first parameter information may be carried in an initial context setup request (initial context setup request) message; or, the first parameter information may be carried in an RRC-inactive state in the initial context setup request message for core network assistance information (core network assistance information for RRC inactive).

Optionally, after acquiring the first parameter information, the access network device may send a paging message to the terminal according to the first parameter information. Correspondingly, the terminal may receive the paging message from the access network device according to the first parameter information. It can be understood that, before the terminal receives the paging message from the access network device according to the first parameter information, it can obtain the first parameter information. As an example, the terminal may obtain the first parameter information locally, or may obtain the first parameter information from other devices. If the terminal obtains the first parameter information locally, the first parameter information may be pre-configured locally, for example, the first parameter information is specified in the protocol, or the first parameter information may be obtained by the terminal from other devices in advance, and stored locally. For example, the first parameter information may be acquired by the terminal from the core network device in advance and stored locally. If the terminal acquires the first parameter information from other devices, the terminal may receive the first parameter information from the core network device. The first parameter information may be a message, or may be a cell or a field included in the message, which is not limited. As an example, the first parameter information may be carried in a NAS message.

Further, sending the paging message to the terminal by the access network device according to the first parameter information includes: the access network device determines the first time domain position according to the first parameter information, and sends the paging message to the terminal at the first time domain position . Wherein, the first time domain location may include the location of at least one paging time unit. The paging time unit may include PTW or PO. If the paging time unit includes PTW, the eDRX cycle included in the first parameter information includes multiple POs; if the paging time unit includes PO, the eDRX cycle included in the first parameter information includes one PO. Correspondingly, the terminal receiving the paging message from the access network device according to the first parameter information includes: the terminal determining the first time domain position according to the first parameter information, and receiving the paging message from the access network device at the first time domain position. call message. It can be understood that when the access network device sends a paging message to the terminal, or when the terminal receives a paging message from the access network device, the terminal may be in the RRC-inactive state. The process in which the terminal determines the first time domain position according to the first parameter information is similar to the process in which the access network device determines the first time domain position according to the first parameter information. In the following, the access network device determines the first time domain position according to the first parameter information. The domain location is used as an example.

A possible implementation manner, if the paging time unit includes a PTW, the access network device sending a paging message to the terminal at the first time domain position can be understood as the access network device at the position of at least one PTW, according to the DRX Periodically send paging messages to the terminal. The access network device determines the first time domain location according to the first parameter information, which may be performed when the terminal is in the RRC-connected state, or may be performed when the terminal is in the RRC-inactive state. For example, when the access network device determines that the RRC connection between the access network device and the terminal will be released, the first time domain location is determined according to the first parameter information; A parameter information determines the first time domain location; or, after the access network device sends an RRC release message to the terminal, the first time domain location is determined according to the first parameter information. Among them, the RRC release message can be used to release the terminal to the RRC-inactive state.

Exemplarily, taking the first parameter information including the eDRX cycle as an example, after acquiring the first parameter information, the access network device may determine the location of at least one PO according to the above method for determining the location of the PO. Subsequently, the access network device may send a paging message to the terminal at the location of at least one PO.

Exemplarily, taking the first parameter information including the eDRX cycle and the length of the PTW as an example, after acquiring the first parameter information, the access network device may determine the location of at least one PTW according to the above method for determining the location of the PTW. Subsequently, the access network device may send a paging message to the terminal at the location of at least one PTW.

Exemplarily, taking the first parameter information including the eDRX cycle and the number of DRX cycles included in the PTW as an example, after the access network device acquires the first parameter information, it can determine the PTW according to the DRX cycle and the number of DRX cycles included in the PTW. (for example, the length of the PTW is the product of the DRX cycle and the number of DRX cycles included in the PTW), and then determine the position of at least one PTW according to the above method for determining the position of the PTW. Subsequently, the access network device may send a paging message to the terminal at the location of at least one PTW.

S402: The access network device sends the second parameter information to the terminal and the core network device. Correspondingly, the terminal and the core network device receive the second parameter information from the access network device.

The second parameter information may be used to indicate the changed eDRX parameters. The changed eDRX parameters can be used after S402, and the core network device or the access network device uses the eDRX mode to send the paging message; or, the changed eDRX parameters can be used after S402, and the terminal uses the eDRX mode to receive the paging message; or , the changed eDRX parameters can be used in RRC-inactive state, the core network equipment or access network equipment uses eDRX mode to send paging messages; or, the changed eDRX parameters can be used in RRC-inactive state, the terminal uses eDRX mode to receive paging messages. The second parameter information may replace the eDRX parameter information described as configured by the access network device, the modified common eDRX parameter information, the modified common eDRX parameter information, etc., without limitation.

It can be understood that the second parameter information may be a message, or may be a cell or a field contained in the message, which is not limited. As an example, when the second parameter information is sent to the terminal, it may be carried in an RRC release message or an RRC connection reconfiguration (RRCReconfiguration) message. When the second parameter information is sent to the core network device, it may be carried in the RRC deactivation transition report. It can be understood that the second parameter information may also be sent by the access network device to the terminal through the core network device. For example, the access network device may send the second parameter information to the core network device through the RRC inactivity transition report. After receiving the second parameter information, the core network device sends the second parameter information to the terminal through a NAS message.

In a possible implementation manner, the second parameter information includes the eDRX cycle. Optionally, the second parameter information further includes the length of the PTW; or, the second parameter information further includes the number of DRX cycles included in the PTW. It can be understood that if the second parameter information includes the eDRX cycle, it may indicate that one PO is included in the eDRX cycle. If the second parameter information includes the eDRX cycle and the length of the PTW, or the second parameter information includes the eDRX cycle and the number of DRX cycles included in the PTW, it may indicate that the eDRX cycle includes multiple POs or PTWs.

Further, the eDRX parameter indicated by the second parameter information is different from the eDRX parameter indicated by the first parameter information. The difference between the eDRX parameters indicated by the second parameter information and the eDRX parameters indicated by the first parameter information can be understood as: the eDRX parameters indicated by the second parameter information are totally different or partially different from the eDRX parameters indicated by the first parameter information. For example, the eDRX cycle included in the second parameter information is different from the eDRX cycle included in the first parameter information; or, the length of the eDRX cycle and PTW included in the second parameter information is different from the eDRX cycle included in the first parameter information and the length of the PTW; Alternatively, the length of the PTW included in the second parameter information is different from the length of the PTW included in the first parameter information; or, the number of DRX cycles included in the second parameter information is different from the number of DRX cycles included in the first parameter information; or, The eDRX cycle and the number of DRX cycles included in the second parameter information are different from the eDRX cycle and the number of DRX cycles included in the first parameter information.

In a possible implementation manner, when the access network device determines that the terminal enters the RRC-inactive state, it sends the second parameter information to the terminal and the core network device. For example, before the access network device sends the RRC release message to the terminal, or when the access network device sends the RRC release message to the terminal, or after the access network device sends the RRC release message to the terminal, it sends the first RRC release message to the terminal and the core network device. Two parameter information. Wherein, the RRC release message is used to release the RRC connection between the terminal and the access network equipment, so that the terminal transitions to the RRC-inactive state.

Optionally, the access network device determines whether to send the second parameter information to the terminal and the core network device according to the terminal capability information and/or the first condition information. If the access network device wants to determine whether to send the second parameter information to the terminal and the core network device according to the capability information of the terminal, before S402, the access network device may send a terminal capability enquiry (UE capability enquiry) message to the terminal to request Terminal capability information, and receive terminal capability information (UE capability info) from the terminal. The terminal capability information may indicate at least one of the following information: whether the terminal supports eDRX, whether the terminal supports the RRC-inactive state, and whether the terminal supports eDRX in the RRC-inactive state. The first condition information may indicate whether the first parameter information is suitable for the access network device to send a paging message to the terminal. For example, the first condition information may indicate whether the eDRX cycle included in the first parameter information is greater than or equal to the first time length.

Exemplarily, taking the access network device determining whether to send the second parameter information to the terminal and the core network device according to the terminal capability information as an example, if the terminal capability information indicates that the terminal does not support eDRX, or the terminal capability information indicates that the terminal does not support RRC- inactive state, or the terminal capability information indicates that the terminal does not support eDRX and does not support the RRC-inactive state, or, the terminal capability information indicates that the terminal does not support eDRX in the RRC-inactive state, then the access network device does not report to the terminal and the core network The device sends the second parameter information, that is, S402 is not performed in this embodiment of the present application. If the terminal capability information indicates that the terminal supports eDRX and supports the RRC-inactive state, or the terminal capability information indicates that the terminal supports eDRX in the RRC-inactive state, the access network device sends the second parameter information to the terminal and the core network device.

Exemplarily, taking the access network device determining whether to send the second parameter information to the terminal and the core network device according to the first condition information as an example, if the first condition information indicates that the eDRX cycle included in the first parameter information is greater than or equal to the first time length, it means that the time delay for the access network device to send the paging message to the terminal according to the first parameter information is relatively large. In this case, the access network device sends the second parameter information to the terminal and the core network device, and the time delay for the access network device to send the paging message to the terminal according to the second parameter information is shorter than that for sending the paging message to the terminal according to the first parameter information Delay for paging messages. If the first condition information indicates that the eDRX cycle included in the first parameter information is less than the first time length, it indicates that the time delay for the access network device to send the paging message to the terminal according to the first parameter information is small. In this case, the access network device does not send the second parameter information to the terminal and the core network device, that is, the embodiment of the present application does not perform S402.

Exemplarily, taking the access network device determining whether to send the second parameter information to the terminal and the core network device according to the terminal capability information and the first condition information as an example, if the terminal capability information indicates that the terminal does not support eDRX, or the terminal capability information indicates The terminal does not support the RRC-inactive state, or the terminal capability information indicates that the terminal does not support eDRX and does not support the RRC-inactive state, or the terminal capability information indicates that the terminal does not support eDRX in the RRC-inactive state, or, the first condition information Indicates that the eDRX cycle included in the first parameter information is less than the first time length, the access network device does not send the second parameter information to the terminal and the core network device, that is, S402 is not performed in this embodiment of the present application. If the terminal capability information indicates that the terminal supports eDRX and supports the RRC-inactive state, and the first condition information indicates that the eDRX period included in the first parameter information is greater than or equal to the first time length, or the terminal capability information indicates that the terminal is in the RRC-inactive state If eDRX is supported, and the first condition information indicates that the eDRX period included in the first parameter information is greater than or equal to the first time length, the access network device sends the second parameter information to the terminal and the core network device.

It can be understood that if the access network device does not send the second parameter information to the terminal and the core network device, in the case of the terminal RRC-inactive state, the access network device sends a paging message to the terminal according to the first parameter information. Correspondingly, the terminal receives the paging message from the access network device according to the first parameter information. When the terminal is in the RRC-idle state, the core network device sends a paging message to the terminal according to the first parameter information. Correspondingly, the terminal receives the paging message from the core network device according to the first parameter information. If the access network device sends the second parameter information to the terminal and the core network device, when the terminal is in the RRC-inactive state, the access network device sends a paging message to the terminal according to the second parameter information. Correspondingly, the terminal receives the paging message from the access network device according to the second parameter information. When the terminal is in the RRC-idle state, the core network device sends a paging message to the terminal according to the second parameter information. Correspondingly, the terminal receives the paging message from the core network device according to the second parameter information. In this case, the terminal being in the RRC-idle state may mean that the terminal is released from the RRC-connected state to the RRC-inactive state, and then is re-entered. Release to RRC-idle state. The process in which the access network device sends a paging message to the terminal according to the second parameter information, the process in which the core network device sends a paging message to the terminal according to the first parameter information, and the process in which the core network device sends a paging message to the terminal according to the second parameter information For the process of paging the message, reference may be made to the introduction of the access network device sending the paging message to the terminal according to the first parameter information in the above S401, which will not be repeated here.

In addition, when the terminal is in the RRC-inactive state, the core network device may also send a paging message to the terminal. For example, if the terminal is in the RRC-inactive state, but the core network device considers that the terminal is in the RRC-idle state (ie, when a missmatch occurs), the core network device may also send a paging message to the terminal. It can be understood that, if the access network device does not send the second parameter information to the terminal and the core network device, and the terminal enters the RRC-inactive state, and the core network device has a missmatch, the core network device sends the information to the terminal according to the first parameter information. Send a paging message; the access network device sends the second parameter information to the terminal and the core network device, and when the terminal enters the RRC-inactive state, if a missmatch occurs on the core network device, the core network device sends the information to the terminal according to the second parameter information. The terminal sends a paging message.

It can be understood that, according to the above description, before S402, the access network device and the core network device may send a paging message to the terminal according to the first parameter information. After S402, the access network device and the core network device may send a paging message to the terminal according to the second parameter information. The first parameter information is configured by the core network, and is more suitable for the core network device to send a paging message to the terminal, which can reduce the power consumption of the terminal. The second parameter information is configured by the access network device and is more suitable for the access network device to send a paging message to the terminal, which can reduce the long delay for the terminal to receive the paging message from the access network device and improve user experience. Therefore, if the terminal is in the RRC-inactive state after S402, the access network device sends a paging message to the terminal according to the second parameter information, which can reduce the long delay for the terminal to receive the paging message from the access network device, and improve the user experience. experience. However, if the terminal is in the RRC-idle state after S402, for example, the terminal transitions from the RRC-inactive state to the RRC-idle state, the core network device sends a paging message to the terminal according to the second parameter information, which will increase the power consumption of the terminal. In this case, the core network device may reconfigure the eDRX parameters. For example, the core network device may send the reconfigured parameter information to the terminal and the access network device.

In this embodiment of the present application, the access network device may send the second parameter information to the terminal and the core network device at the same time, and the access network device may also send the second parameter information to the terminal and the core network device at different times, without limitation.

Based on the method shown in FIG. 4 , the terminal can use the same eDRX parameters to receive the paging messages of the core network device and the access network device, which is easy to implement and has high feasibility. In addition, the access network device can change the eDRX parameters as needed, thereby reducing the delay for the terminal to receive the paging message of the access network device, and improving the user experience.

The actions of the access network equipment or the core network equipment or the terminal in the above S401-S402 can be executed by the processor 301 in the communication apparatus 30 shown in FIG. 3 calling the application code stored in the memory 303, and this application implements The example does not impose any restrictions on this.

In the method shown in FIG. 4 , the second parameter information is configured by the access network device. In a specific application, the second parameter information may also be configured by the core network device.

As shown in FIG. 5, another communication method provided by an embodiment of the present application includes S501-S502.

S501: The access network device sends auxiliary information to the core network device. Correspondingly, the core network device receives auxiliary information from the access network device.

The auxiliary information may be used to assist the core network device to configure eDRX parameters. The auxiliary information may be a message, or a cell or a field contained in the message, which is not limited. As an example, the assistance information may be carried in a terminal context suspend request (UE context suspend request) message or a terminal capability information indication (UE capability info indication) message.

In a possible implementation manner, the auxiliary information may have the following three cases: Case 1, the auxiliary information may include the eDRX cycle expected by the access network device. Optionally, the auxiliary information further includes the length of the PTW expected by the access network device; or, the auxiliary information further includes the number of DRX cycles included in the PTW expected by the access network device. Case 2, the assistance information may indicate the range of eDRX parameters expected by the access network device. Exemplarily, the assistance information indicates the range of the eDRX cycle expected by the access network device, for example, indicates 2.56s-10.24s. Alternatively, the assistance information indicates the range of the eDRX cycle expected by the access network device and the range of the length of the PTW. Alternatively, the assistance information indicates a range of eDRX cycles expected by the access network device and a range of the number of DRX cycles included in the PTW. Case 3, the auxiliary information may include multiple sets or groups of eDRX parameters, and each set or group of eDRX parameters may be as shown in case 1. For example, the auxiliary information includes eDRX parameter 1 and eDRX parameter 2. The eDRX parameter 1 includes an eDRX cycle 1 expected by the access network device, and the eDRX parameter 2 includes an eDRX cycle 2 expected by the access network device and a PTW length 1 expected by the access network device. In case 4, the auxiliary information may be used to instruct the core network device to configure eDRX parameters. For example, the auxiliary information may indicate parameters related to terminal services, such as time delay requirements. After receiving the auxiliary information, the core network device may configure eDRX parameters according to the auxiliary information.

In a possible implementation manner, when the access network device determines that the terminal is about to enter the RRC-inactive state, it sends auxiliary information to the core network device. For example, before sending the RRC release message to the terminal, the access network device sends auxiliary information to the core network device. Wherein, the RRC release message is used to release the RRC connection between the terminal and the access network equipment, so that the terminal transitions to the RRC-inactive state. For another example, the access network device sends auxiliary information to the core network device after receiving the request message from the terminal for requesting to release to the RRC-inactive state.

Optionally, the access network device determines whether to send auxiliary information to the core network device according to the terminal capability information. If the access network device wants to determine whether to send auxiliary information to the core network device according to the capability information of the terminal, before S501, the access network device may receive the terminal capability information from the terminal. For the introduction of the terminal capability information, reference may be made to the description in S402 above.

Exemplarily, taking the access network device determining whether to send auxiliary information to the core network device according to the terminal capability information as an example, if the terminal capability information indicates that the terminal does not support eDRX, or the terminal capability information indicates that the terminal does not support the RRC-inactive state, or , the terminal capability information indicates that the terminal does not support eDRX and does not support the RRC-inactive state, or the terminal capability information indicates that the terminal does not support eDRX in the RRC-inactive state, the access network device does not send auxiliary information to the core network device. If the terminal capability information indicates that the terminal supports eDRX and supports the RRC-inactive state, or the terminal capability information indicates that the terminal supports eDRX in the RRC-inactive state, the access network device sends auxiliary information to the core network device.

Optionally, before S501, the access network device acquires the first parameter information. In this way, the access network device can determine whether to send auxiliary information to the core network device according to the first condition information. Wherein, for the process of acquiring the first parameter information by the access network device, reference may be made to the corresponding description in the foregoing S401, and for the introduction of the first condition information, reference may be made to the foregoing description in S402.

Exemplarily, taking the access network device determining whether to send auxiliary information to the core network device according to the first condition information as an example, if the first condition information indicates that the eDRX cycle included in the first parameter information is greater than or equal to the first time length, it means that The time delay for the access network device to send the paging message to the terminal according to the first parameter information is relatively large. In this case, the access network equipment sends auxiliary information to the core network equipment. If the first condition information indicates that the eDRX cycle included in the first parameter information is less than the first time length, it indicates that the time delay for the access network device to send the paging message to the terminal according to the first parameter information is small. In this case, the access network device does not send auxiliary information to the core network device.

It can be understood that the access network device may also determine whether to send auxiliary information to the core network device according to the terminal capability information and the first condition information. Exemplarily, if the terminal capability information indicates that the terminal does not support eDRX, or the terminal capability information indicates that the terminal does not support the RRC-inactive state, or the terminal capability information indicates that the terminal does not support eDRX and does not support the RRC-inactive state, or, the terminal If the capability information indicates that the terminal does not support eDRX in the RRC-inactive state, or the first condition information indicates that the eDRX period included in the first parameter information is less than the first time length, the access network device does not send auxiliary information to the core network device. If the terminal capability information indicates that the terminal supports eDRX and supports the RRC-inactive state, and the first condition information indicates that the eDRX period included in the first parameter information is greater than or equal to the first time length, or the terminal capability information indicates that the terminal is in the RRC-inactive state If eDRX is supported, and the first condition information indicates that the eDRX period included in the first parameter information is greater than or equal to the first time length, the access network device sends auxiliary information to the core network device.

It can be understood that, if the access network device does not send auxiliary information to the core network device, in the case that the terminal is in the RRC-idle state or the RRC-inactive state, the access network device or the core network device sends the information to the terminal according to the first parameter information. Send a paging message. Correspondingly, the terminal receives the paging message from the access network device or the core network device according to the first parameter information. If the access network device sends the auxiliary information to the core network device, when the terminal is in the RRC-idle state or the RRC-inactive state, the access network device or the core network device sends a search request to the terminal according to the first indication information in S502. call message. Correspondingly, the terminal receives the paging message from the access network device according to the first indication information. The process for the access network device or the core network device to send the paging message to the terminal according to the first parameter information, and the process for the access network device or the core network device to send the paging message to the terminal according to the first indication information, may refer to the above The introduction of the access network device sending the paging message to the terminal according to the first parameter information in S401 will not be repeated here.

S502: The core network device sends first indication information to the access network device and the terminal. Correspondingly, the terminal and the access network device receive the first indication information from the core network device.

The first indication information may be used to indicate the first eDRX parameter. The first eDRX parameter can be used after S502, and the core network device or the access network device uses the eDRX mode to send the paging message; or, the first eDRX parameter can be used after S502, and the terminal uses the eDRX mode to receive the paging message; An eDRX parameter can be used in the RRC-inactive state, and the core network device or the access network device uses the eDRX mode to send paging messages; or, the first eDRX parameter can be used in the RRC-inactive state, and the terminal uses the eDRX mode to receive paging messages information.

It can be understood that, for the above case 1, the first eDRX parameter and the eDRX parameter indicated by the auxiliary information may be the same or different. It should be understood that if the first eDRX parameter and the eDRX parameter indicated by the auxiliary information are the same, S502 may not be performed. After S501, the access network device does not receive the first indication information sent by the core network device within a period of time, for example, within 5 milliseconds, and may use the eDRX parameter indicated by the auxiliary information as the first eDRX parameter, and send the auxiliary information to the terminal. information or the first eDRX parameter. Subsequently, when the terminal is in the RRC-idle state or the RRC-inactive state, the core network device or the access network device may send a paging message to the terminal according to the auxiliary information. For the above case 2, the first eDRX parameter may be included in the range of the eDRX parameter indicated by the auxiliary information, or may not be included in the range. In this case, the first indication information may include the eDRX cycle. Optionally, the first indication information further includes the length of the PTW; or, the first indication information further includes the number of DRX cycles included in the PTW. For the above case 3, the first eDRX parameter may be one set or one set of parameters among multiple sets or sets of eDRX parameters included in the auxiliary information, or may not be. If the first eDRX parameter is one set or a set of parameters among multiple sets or sets of eDRX parameters included in the auxiliary information, the first indication information may include an identifier corresponding to the set or set of parameters, or the first indication information Included content can be as described above for Case 2. For the above case 4, the first eDRX parameter may be determined according to a parameter related to the terminal service, such as a time delay requirement. The content included in the first indication information may be as described above for Case 2.

It can be understood that the core network device may directly send the first indication information to the terminal, or may send the first indication information to the terminal through the access network device. For example, if the core network device directly sends the first indication information to the terminal, the first indication information may be carried in a NAS (eg, registration accept) message. In this case, if the auxiliary information is carried in the terminal context suspend request, the first indication information sent by the core network device to the access network device may be carried in the terminal context suspend response (UE context suspend response). When the auxiliary information is carried in the terminal context termination request, if the core network device sends the first indication information to the terminal through the access network device, the first indication information sent by the core network device to the access network device may be carried in the terminal In the context termination response, the first indication information sent by the access network device to the terminal may be carried in the RRC release message.

It should be noted that, if the core network device directly sends the first indication information to the terminal, the core network device may send the first indication information to the terminal and the access network device at the same time, or may send the first indication information to the terminal and the access network device at different times respectively. Sending the first indication information is not limited.

Optionally, after S502, the core network device uses the first eDRX parameter to send a paging message to the terminal. Correspondingly, the terminal uses the first eDRX parameter to receive the paging message from the core network device. The access network device uses the first eDRX parameter to send a paging message to the terminal. Correspondingly, the terminal uses the first eDRX parameter to receive the paging message from the access network device.

In a possible implementation manner, after S502, the core network device may reconfigure eDRX parameters. For example, the core network device may send the reconfigured parameter information to the terminal and the access network device.

Based on the method shown in FIG. 5 , the terminal can receive the paging messages of the access network device and the core network device according to the same eDRX parameters, which is easy to implement and has high feasibility. In addition, the access network device can send auxiliary information to the core network device as needed to trigger the core network device to configure appropriate eDRX parameters, so that the delay of the terminal receiving the paging message of the access network device is reduced and the user experience is improved.

The actions of the access network device or core network device or terminal in the above S501-S503 can be executed by the processor 301 in the communication device 30 shown in FIG. 3 calling the application code stored in the memory 303, and the present application implements The example does not impose any restrictions on this.

In the above method shown in FIG. 4 or FIG. 5 , the terminal may receive the paging messages of the core network device and the access network device according to the same eDRX parameters. However, in a communication system, the interval at which the core network device sends the paging message is usually longer than the interval at which the access network device sends the paging message. Therefore, if the terminal receives the paging message of the access network device according to the eDRX parameters configured by the core network device, it will cause a long delay and poor user experience. If the terminal receives the paging message from the core network device according to the eDRX parameters configured by the access network device, the power consumption of the terminal will be large and the battery life will be shortened. In this case, either the access network device or the core network device needs to configure the eDRX parameters multiple times. For example, when the access network device determines that the terminal will enter the RRC-inactive state, configure the eDRX suitable for the access network device. If the core network device determines that the terminal will enter the RRC-idle state, it configures eDRX parameters suitable for the core network device, and the signaling overhead is relatively large. Either after S402 or S503, the terminal receives the paging message of the core network device according to the eDRX parameters applicable to the access network device, resulting in increased power consumption of the terminal.

In order to solve the above problem, the terminal may use different eDRX parameters to receive the paging messages of the core network device and the access network device respectively. For example, the core network device and the access network device may be configured with eDRX parameters respectively. The eDRX parameters configured by the core network device can be used by the terminal to receive paging messages from the core network device in the RRC-idle state or in the RRC-inactive state, and the eDRX parameters configured by the access network device can be used by the terminal in the RRC-inactive state to receive paging messages The paging message of the access network device, and if in the first time unit, both the paging time unit of the core network device and the paging time unit of the access network device exist, the terminal can be in one of the paging time units Receive a paging message from a core network device and/or receive a paging message from an access network device. If within the first time unit, there is a paging time unit of the core network device and no paging time unit of the access network device, the terminal receives the paging message of the core network device in the paging time unit of the core network device . If within the first time unit, there is a paging time unit of the access network device and no paging time unit of the core network device, the terminal receives the paging time unit of the access network device in the paging time unit of the access network device call message. In this way, the terminal can receive the paging messages of the access network equipment and the core network equipment according to the appropriate eDRX parameters, which can not only reduce the delay, improve the user experience, but also reduce the power consumption of the terminal.

As shown in FIG. 6 , another communication method provided by an embodiment of the present application is provided. The communication method includes: S601-S603.

S601: The terminal acquires first parameter information and second parameter information, determines a first time domain position according to the first parameter information, and determines a second time domain position according to the second parameter information.

The terminal may be any terminal in the communication system 20 shown in FIG. 2A , for example, the terminal 203 , the terminal 204 or the terminal 205 . The first parameter information may be used to indicate the first eDRX parameter. The first eDRX parameter may be used by the core network device to send the paging message in the eDRX mode, or the first eDRX parameter may be used by the terminal to receive the paging message of the core network device in the eDRX mode. The first parameter information may be used to indicate the second eDRX parameter. The second eDRX parameter may be used for the access network device to send the paging message in the eDRX mode, or the second eDRX parameter may be used for the terminal to receive the paging message of the access network device in the eDRX mode. The first parameter information can also replace the eDRX parameter information described as the RRC-idle state, the eDRX parameter information configured by the core network device, etc., and the second parameter information can also replace the eDRX parameter information described as the RRC-inactive state, the access network device. The configured eDRX parameter information, etc., is not limited.

The access network device may be an access network device in the communication system 20 that is communicatively connected to the terminal. For example, if the terminal is the terminal 203 or the terminal 204 in the communication system 20, the access network device is the access network device 202 in the communication system 20; if the terminal is the terminal 205 in the communication system 20, the access network device is Access network equipment 202 in the communication system 20 . The core network device may be a core network device in the communication system 20 that is communicatively connected to the access network device, for example, the core network device 206 .

In a possible implementation manner, the first parameter information includes the eDRX cycle. Optionally, the first parameter information further includes the length of the PTW; or, the first parameter information further includes the number of DRX cycles included in the PTW. The second parameter information includes the eDRX cycle. Optionally, the second parameter information further includes the length of the PTW; or, the second parameter information further includes the number of DRX cycles included in the PTW.

The DRX cycle may be the default DRX cycle; or the DRX cycle may be the UE-specific DRX cycle; or the DRX cycle may be the RAN DRX cycle; or the DRX cycle may be the minimum of the default DRX cycle and the UE-specific DRX cycle or The maximum value; alternatively, the DRX cycle may be the minimum or maximum value among the default DRX cycle and the RAN DRX cycle; alternatively, the DRX cycle may be the minimum or maximum value among the default DRX cycle, the UE specific DRX cycle, and the RAN DRX cycle. For example, as shown in FIG. 7A, if in the first time unit, both the paging time unit of the core network device and the paging time unit of the access network device (for example, PTW 701 and PTW 703) exist, the DRX cycle can be It is the default DRX cycle, or UE specific DRX cycle, or RAN DRX cycle, or the minimum or maximum value among default DRX cycle, UE specific DRX cycle and RAN DRX cycle. If within the first time unit, there is a paging unit (for example, PTW 702) of the core network device and no paging unit of the access network device, the DRX cycle can be the default DRX cycle, or the UE specific DRX cycle, or The minimum or maximum value between the default DRX cycle and the UE specific DRX cycle. If within the first time unit, there is a paging unit of the access network device (for example, PTW 704) and no paging unit of the core network device, the DRX cycle can be the default DRX cycle, or the RAN DRX cycle, or the default DRX cycle Minimum or maximum value in DRX cycle and RAN DRX cycle.

The first time unit is a logic unit in the time domain. This embodiment of the present application does not limit the length of the first time unit. For example, the first time unit may include one or more subframes, or one or more system frames, or one or more superframes, or the like. The first time unit may also include any length of time, for example, the first time unit may include 8s, 15s, etc., which is not limited. The paging time unit may include PTW or PO. The introduction of the default DRX cycle, the UE specific DRX cycle and the RAN DRX cycle, and the introduction of the terminal acquiring the first parameter information may refer to the corresponding description in the above S401, and will not be repeated.

In a possible implementation manner, the terminal may obtain the second parameter information locally, or may obtain the second parameter information from other devices. If the terminal obtains the second parameter information locally, the second parameter information may be pre-configured locally, for example, the second parameter information is specified in the protocol, or the second parameter information may be obtained by the terminal from other devices in advance, and stored locally. For example, the second parameter information may be acquired by the terminal from the access network device in advance and stored locally. If the terminal acquires the second parameter information from other devices, the terminal may receive the second parameter information from the access network device. The second parameter information may be a message, or may be a cell or a field contained in the message, which is not limited. As an example, the second parameter information may be carried in the RRC release message.

In S601, the first time domain location includes the location of at least one paging time unit. Taking FIG. 7A as an example, the first time domain position includes the position of PTW 701 and the position of PTW 702. If the paging time unit includes at least one PTW, the eDRX cycle included in the first parameter information includes multiple POs; if the paging time unit includes at least one PO, the eDRX cycle included in the first parameter information includes one PO .

Similar to the first time domain location, the second time domain location includes the location of at least one paging time unit. Taking FIG. 7A as an example, the second time domain position includes the position of PTW 703 , the positions of PTW 704 and PTW 705 . If the paging time unit includes at least one PTW, the eDRX cycle included in the second parameter information includes multiple POs; if the paging time unit includes at least one PO, the eDRX cycle included in the second parameter information includes one PO .

Further, the first time domain position and the second time domain position are not exactly the same. That is, the positions of all PTWs or the positions of all POs included in the first time-domain position do not completely overlap in the time domain with the positions of all PTWs or all POs included in the second time-domain position. For the process of the terminal determining the first time-domain location according to the first parameter information, reference may be made to the description in S401 above. The process for the terminal to determine the second time domain position according to the second parameter information is similar to the process for the terminal to determine the first time domain position according to the first parameter information. Reference may also be made to the corresponding description in S401 above, which will not be repeated here.

S602: The access network device acquires first parameter information, and determines the first time domain location according to the first parameter information.

For the introduction of S602, reference may be made to the corresponding description in the foregoing S401, which will not be repeated.

It should be noted that this embodiment of the present application does not limit the execution order of S601 and S602. That is, in this embodiment of the present application, S601 may be performed first and then S602 may be performed, or S602 may be performed first and then S601 may be performed.

S603: In the first time unit, the access network device sends a paging message to the terminal according to whether the core network device has a paging time unit. Correspondingly, the terminal receives a paging message from the access network device according to whether the core network device has a paging time unit. paging message.

Wherein, within the first time unit, the first access network device has a paging time unit.

In a possible implementation manner, if the core network device has a paging time unit in the first time unit, then in the first time unit, the access network device sends a paging message to the terminal in the paging time unit that exists in the access network device, Or, in the first time unit, the core network device sends a paging message to the terminal in the paging time unit that exists; or, if in the first time unit, the core network device does not have a paging time unit, then in the first time unit In the time unit, a paging message is sent to the terminal in the paging time unit where the first access network device exists. The following four cases are used as examples to introduce.

Case A: The first time domain location includes the location of the first PTW, for example, the location of the first PTW may be the location of the PTW 701 or the location of the PTW 702 in FIG. 7A . The second time domain location includes the location of the second PTW. For example, the location of the second PTW may be the location of the PTW 703, the location of the PTW 704, or the location of the PTW 705 in FIG. 7A.

In a possible implementation manner, if the first PTW and the second PTW are located in the first time unit, within the first time unit, the access network device sends a paging message to the terminal at the location of the first PTW. In this case, because the core network device also sends a paging message to the terminal at the location of the first PTW, the terminal can be woken up in one paging time unit within the first time unit to receive the access network device and the terminal. The paging message of the core network device, thereby reducing the power consumption of the terminal. If the second PTW is located in the first time unit, and the core network device does not have a paging time unit in the first time unit, then within the first time unit, the access network device sends a paging message to the terminal at the location of the second PTW . If the first PTW is located in the first time unit, and the access network device does not have a paging time unit within the first time unit, then within the first time unit, the core network device sends a paging message to the terminal at the location of the first PTW .

It can be understood that if the location of the first PTW and the location of the second PTW are located in the first time unit, then within the first time unit, the access network device and the core network device may also send a search request to the terminal at the location of the second PTW. call message. In this case, before S603, the core network device may acquire the second parameter information, and determine the second time domain location according to the second parameter information. Subsequently, in the first time unit, the core network device sends a paging message to the terminal according to whether the core network device has a paging time unit. Correspondingly, the terminal receives a paging message from the core network device according to whether the core network device has a paging time unit. call message.

In a possible implementation manner, the core network device may obtain the second parameter information locally, or may obtain the second parameter information from other devices. If the core network device obtains the second parameter information locally, the second parameter information may be pre-configured locally, for example, the second parameter information is specified in the protocol, or the second parameter information may be obtained from the core network device in advance from Other devices get it and store it locally. For example, the second parameter information may be acquired by the core network device from the access network device in advance and stored locally. If the core network device obtains the second parameter information from other devices, the core network device may receive the second parameter information from the access network device. The second parameter information may be a message, or may be a cell or a field contained in the message, which is not limited. As an example, the second parameter information may be carried in the N2 message. The process for the core network device to determine the second time domain position according to the second parameter information is similar to the process for the terminal to determine the first time domain position according to the first parameter information. Reference may be made to the corresponding description in S401 above, which will not be repeated here. After the core network device determines the second time domain location according to the second parameter information, it may send a paging message to the terminal according to the first condition, and correspondingly, the terminal receives the paging message from the core network device according to the first condition.

Exemplarily, taking FIG. 7A as an example, if the position of the first PTW is the position of the PTW 701, and the position of the second PTW is the position of the PTW 703, then the access network equipment and the core network equipment can communicate with the terminal at the position of the PTW 701. When sending a paging message, the access network equipment and the core network equipment can also send a paging message to the terminal at the location of the PTW 703 . If the location of the first PTW is the location of the PTW 702 and the location of the second PTW is the location of the PTW 704, the core network device can send a paging message to the terminal at the location of the PTW 702, and the access network device can be located at the location of the PTW 704 Send a paging message to the terminal.

Case B: the first time domain location includes the location of the first PTW, for example, the location of the first PTW may be the location of the PTW 706 or the location of the PTW 707 in FIG. 7B . The second time domain location includes the location of the first PO. For example, the location of the first PO may be the location of PO 708, the location of PO 709, or the location of PO 710 in FIG. 7B.

In a possible implementation manner, if the location of the first PTW and the location of the first PO are located in the first time unit, the access network device sends a paging message to the terminal at the location of the first PTW within the first time unit. In this case, because the core network device also sends a paging message to the terminal at the location of the first PTW, the terminal can be woken up in one paging time unit within the first time unit to receive the access network device and the terminal. The paging message of the core network device, thereby reducing the power consumption of the terminal. If the location of the first PO is located in the first time unit, and the core network device does not have a paging time unit in the first time unit, then within the first time unit, the access network device sends paging to the terminal at the location of the first PO information. If the location of the first PTW is located in the first time unit, and the access network device does not have a paging time unit within the first time unit, then within the first time unit, the core network device sends paging to the terminal at the location of the first PTW information.

Exemplarily, taking FIG. 7B as an example, if the position of the first PTW is the position of the PTW 706, and the position of the first PO is the position of the PO 708, then the access network equipment and the core network equipment can communicate with the terminal at the position of the PTW 706. Send a paging message. If the location of the first PTW is the location of the PTW 707 and the location of the first PO is the location of the PO 709, the core network device may send a paging message to the terminal at the location of the PTW 707, and the access network device may be at the location of the PO 709 Send a paging message to the terminal.

Case C: The first time domain position includes the position of the first PO, for example, the position of the first PO may be the position of PO 711 or the position of PO 712 in FIG. 7C . The second time domain location includes the location of the first PTW. For example, the location of the first PTW may be the location of the PTW 713, the location of the PTW 714, or the location of the PTW 715 in FIG. 7C.

A possible implementation manner, if the location of the first PO and the location of the first PTW are located in the first time unit, then within the first time unit, the access network device sends a paging message to the terminal at the location of the first PTW, The core network device also sends a paging message to the terminal at the location of the first PTW. In this case, both the access network device and the core network device send the paging message at the location of the first PTW. Therefore, the terminal can be woken up in one paging time unit within the first time unit to receive paging messages from the access network device and the core network device, thereby reducing the power consumption of the terminal. If the location of the first PO is located in the first time unit, and the access network device does not have a paging time unit within the first time unit, then within the first time unit, the core network device sends paging to the terminal at the location of the first PO information. If the location of the first PTW is located in the first time unit, and the core network device does not have a paging time unit in the first time unit, then within the first time unit, the access network device sends paging to the terminal at the location of the first PTW information.

It can be understood that, for the case C, before S603, the core network device may acquire the second parameter information, and determine the second time domain position according to the second parameter information.

Exemplarily, taking FIG. 7C as an example, if the position of the first PO is the position of the PO 711, and the position of the first PTW is the position of the PTW 713, then the access network equipment and the core network equipment can communicate with the terminal at the position of the PTW 713. Send a paging message. If the location of the first PO is the location of PO 712 and the location of the first PTW is the location of PTW 714, the core network device can send a paging message to the terminal at the location of PO 712, and the access network device can be located at the location of PTW 714 Send a paging message to the terminal.

Case D: the first time domain position includes the position of the first PO, for example, the position of the first PO may be the position of PO 716 or the position of PO 717 in FIG. 7D . The second time domain position includes the position of the second PO, for example, the position of the second PO may be the position of the PO 718, the position of the PO 719 or the position of the PO 720 in FIG. 7D.

In a possible implementation manner, if the location of the first PO and the location of the second PO are located in the first time unit, the access network device sends a paging message to the terminal at the location of the first PO within the first time unit. In this case, the core network device also sends a paging message to the terminal at the location of the first PO, so the terminal can be woken up in one paging time unit within the first time unit to receive the access network device and the core paging messages of network devices, thereby reducing the power consumption of the terminal. If the location of the second PO is located in the first time unit, and the core network device does not have a paging time unit in the first time unit, then within the first time unit, the access network device sends paging to the terminal at the location of the second PO information. If the location of the first PO is located in the first time unit, and the access network device does not have a paging time unit within the first time unit, then within the first time unit, the core network device sends paging to the terminal at the location of the first PO information.

It can be understood that, if the location of the first PO and the location of the second PO are located in the first time unit, then within the first time unit, the access network device and the core network device may also send a search request to the terminal at the location of the second PO. call message. In this case, before S603, the core network device may acquire the second parameter information, and determine the second time domain location according to the second parameter information.

Exemplarily, taking FIG. 7D as an example, if the position of the first PO is the position of PO 716, and the position of the second PO is the position of PO 718, then the access network equipment and the core network equipment can communicate to the terminal at the position of PO 716. After sending the paging message, the access network equipment and the core network equipment can also send the paging message to the terminal at the location of PO 718. If the location of the first PO is the location of PO 717 and the location of the second PO is the location of PO 719, the core network device can send a paging message to the terminal at the location of PO 717, and the access network device can be located at the location of PO 719 Send a paging message to the terminal.

Optionally, before S603, the access network device sends the second indication information to the terminal. The second indication information may indicate whether the terminal receives a paging message from the access network device according to whether the core network device has a paging time unit within the first time unit, or the first indication information may indicate that at the first time In the unit, whether the access network device sends a paging message to the terminal according to whether the core network device has a paging time unit. The first indication information may be carried in the RRC release message.

As an example, the first indication information includes 1 bit, and if the value of the first indication information is 0, the first indication information indicates that within the first time unit, the terminal does not receive information from the core network device according to whether there is a paging time unit or not. The paging message of the access network device, or the first indication information indicates that within the first time unit, the access network device does not send a paging message to the terminal according to whether the core network device has a paging time unit. Subsequently, the access network device sends a paging message to the terminal at the second time domain location, and the terminal receives the paging message from the access network device at the second time domain location. The core network device sends a paging message to the terminal at the first time domain position, and the terminal receives the paging message from the core network device at the first time domain position. If the value of the first indication information is 1, the first indication information indicates that within the first time unit, the terminal receives a paging message from the access network device according to whether the core network device has a paging time unit, or the first indication The information indicates that within the first time unit, the access network device sends a paging message to the terminal according to whether the core network device has a paging time unit. Subsequently, in the first time unit, the access network device sends a paging message to the terminal according to whether the core network device has a paging time unit, and the terminal receives the paging message from the access network device according to whether the core network device has a paging time unit .

Based on the method shown in FIG. 6 , the core network device and the access network device may configure eDRX parameters respectively. The eDRX parameters configured by the core network device can be used by the terminal to receive paging messages from the core network device, and the eDRX parameters configured by the access network device can be used by the terminal to receive paging messages from the access network device, and if the first time unit If there are both the paging time unit of the core network device and the paging time unit of the access network device, the terminal can be woken up in one of the paging time units. In this way, the terminal can receive the paging messages of the access network equipment and the core network equipment according to the appropriate eDRX parameters, which can not only reduce the delay, improve the user experience, but also reduce the power consumption of the terminal.

The actions of the access network device or core network device or terminal in the above S601-S603 can be executed by the processor 301 in the communication apparatus 30 shown in FIG. 3 calling the application code stored in the memory 303, and the present application implements The example does not impose any restrictions on this.

In the above method shown in FIG. 6 , there is no correlation between the first parameter information and the second parameter information, and they are configured separately. In a specific application, the access network device may determine the second parameter information according to the first parameter information, so that the position of the partial paging time unit included in the second time domain location is the same as the partial paging time unit included in the first time domain location. are overlapped in the time domain. In this way, for the overlapping paging time units in the first time domain location and the second time domain location, the terminal can be woken up in one of the paging time units, so that the terminal can receive the access network equipment and the core network according to the appropriate eDRX parameters The paging message of the device can not only reduce the delay, improve the user experience, but also reduce the power consumption of the terminal.

As shown in FIG. 8, another communication method provided by an embodiment of the present application includes S801-S802.

S801: The access network device and the terminal acquire first parameter information, and determine a first time domain location according to the first parameter information.

For the introduction of S801, reference may be made to the corresponding description in the foregoing S401, which will not be repeated. It should be noted that, the access network device and the terminal may execute S801 at the same time, or may not execute S801 at the same time.

S802: The access network device and the terminal acquire second parameter information, and determine the second time domain location according to the second parameter information.

In a possible implementation manner, the second parameter information is obtained according to the first parameter information. For example, the access network device may determine the second parameter information according to the first parameter information, so that the position of the partial paging time unit included in the second time domain location is the same as the location of the partial paging time unit included in the first time domain location. There is overlap in the time domain. For example, in the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the access network device overlap in the time domain. The first time unit may be a superframe. The paging time unit may include PTW or PO. In this way, for the overlapping paging time units in the first time domain location and the second time domain location, the terminal can be woken up in one of the paging time units to reduce power consumption. Wherein, the second parameter information includes the eDRX cycle. Optionally, the second parameter information further includes the length of the PTW; or, the second parameter information further includes the number of DRX cycles included in the PTW. For the introduction of the first time domain position and the second time domain position, reference may be made to the description in the method shown in FIG. 6 above.

In a possible implementation manner, the number of superframes in the eDRX cycle included in the first parameter information is an even number, and the identifier of the terminal is an even number. The identification of the terminal may be UE_ID_H. The number of superframes in the eDRX cycle included in the second parameter information is an even number. In this case, the second parameter information determined by the access network device may make the starting position of the partial paging time unit included in the second time domain location be the same as the starting location of the partial paging time unit included in the first time domain location. The starting position is the same. For example, in the first time unit, the starting position of the paging time unit existing in the core network device is the same as the starting position of the paging time unit existing in the access network device.

In a possible implementation manner, after the access network device obtains the second parameter information, it can send it to the terminal, so that the terminal can receive the paging message according to the second time domain location and the first time domain location.

In a possible implementation manner, after S802, the access network device sends a paging message according to the first time domain location and the second time domain location.

A possible implementation manner is, in the first time unit, send a paging message to the terminal in the paging time unit where the first access network device exists, or send the paging message to the terminal in the paging time unit where the core network device exists. Send a paging message; or, outside the first time unit, send a paging message to the terminal in a paging time unit where the first access network device exists. The following four cases are used as examples to introduce.

Case E: The first time domain location includes the location of the first PTW, and the second time domain location includes the location of the second PTW.

In a possible implementation manner, if the location of the first PTW and the location of the second PTW are within the first time unit, the access network device sends a paging message to the terminal at the location of the first PTW. In this case, the core network device also sends a paging message to the terminal at the location of the first PTW, so the terminal can be woken up in one paging time unit within the first time unit to receive the access network device and the core paging messages of network devices, thereby reducing the power consumption of the terminal. If the location of the first PTW is within the first time unit and the location of the second PTW is not within the first time unit, the core network device sends a paging message to the terminal at the location of the first PTW within the first time unit. If the location of the first PTW is not within the first time unit and the location of the second PTW is within the first time unit, the access network device sends a paging message to the terminal at the location of the second PTW within the first time unit.

It can be understood that if the location of the first PTW and the location of the second PTW are within the first time unit, within the first time unit, the access network device and the core network device may also send a search request to the terminal at the location of the second PTW. call message. In this case, the access network device also sends the second parameter information to the core network device. After receiving the second parameter information, the core network device may determine the second time domain position according to the second parameter information. In this way, the core network device can also send a paging message to the terminal according to the first time domain location and the second time domain location. Correspondingly, the terminal can receive the paging message from the core network device according to the first time domain location and the second time domain location. call message.

Exemplarily, as shown in Figure 9, the number of superframes in the eDRX cycle included in the first parameter information is 4, the number of superframes in the eDRX cycle included in the second parameter information is 2, and the starting positions of PTW 901 and PTW 903 are the same. , the starting position of PTW 902 is the same as that of PTW 905. For PTW 901 and PTW 903, core network equipment and access network equipment can send paging messages to the terminal at the location of PTW 901, and the terminal receives paging messages from core network equipment and access network equipment at the location of PTW 901 . The core network equipment and the access network equipment can also send paging messages to the terminal at the location of the PTW 903, in this case, the terminal receives the paging messages from the core network equipment and the access network equipment at the location of the PTW 903 . For the PTW 902 and the PTW 905, the core network equipment and the access network equipment can send paging messages to the terminal at the location of the PTW 902, and the terminal receives the paging messages from the core network equipment and the access network equipment at the location of the PTW 902. The core network equipment and the access network equipment can also send paging messages to the terminal at the location of the PTW 905, in this case, the terminal receives the paging messages from the core network equipment and the access network equipment at the location of the PTW 905 . For the PTW 904, the access network device can send a paging message to the terminal at the location of the PTW 904, and the terminal receives the paging message from the access network device at the location of the PTW 904. The core network equipment does not send a paging message to the terminal at the location of the PTW 904.

In addition to the above examples, for PTW 901 and PTW 903, the core network device can also send the paging message at the location of PTW 901, and the access network device can also send the paging message at the time domain location overlapping with PTW 903 in PTW 901 paging message. The terminal receives the paging message of the core network equipment at the position of the PTW 901, and receives the paging message of the access network equipment at the time domain position overlapping with the PTW 903 in the PTW 901. In other words, the terminal receives the paging message of the access network device and the paging message of the core network device at the time domain position overlapping with the PTW 903 in the PTW 901, and in the PTW 901, the time domain position that does not overlap with the PTW 903 Receive paging messages from core network devices. The situations of PTW 902 and PTW 905 are similar to those of PTW 901 and PTW 903, and will not be repeated here.

Case F: The first time domain location includes the location of the first PTW, and the second time domain location includes the location of the first PO.

A possible implementation manner, if the location of the first PTW and the location of the first PO are within the first time unit, then within the first time unit, the access network device sends a paging message to the terminal at the location of the first PTW . In this case, the core network device also sends a paging message to the terminal at the location of the first PTW, so the terminal can be woken up in one paging time unit within the first time unit to receive the access network device and the core paging messages of network devices, thereby reducing the power consumption of the terminal. If the location of the first PO is within the first time unit and the core network device does not have a paging time unit within the first time unit, then within the first time unit, the access network device sends a paging time unit to the terminal at the location of the first PO. call message. If the location of the first PTW is within the first time unit and the access network device does not have a paging time unit within the first time unit, the core network device sends a paging time unit to the terminal at the location of the first PTW within the first time unit. call message.

Case G: The first time domain location includes the location of the first PO, and the second time domain location includes the location of the first PTW.

A possible implementation manner, if the location of the first PO and the location of the first PTW are within the first time unit, then within the first time unit, the access network device sends a paging message to the terminal at the location of the first PTW , the core network device also sends a paging message to the terminal at the location of the first PTW. In this case, both the access network device and the core network device send the paging message at the location of the first PTW. Therefore, the terminal can be woken up within one paging time unit in the first time unit to receive paging messages from the access network device and the core network device, thereby reducing the power consumption of the terminal. If the location of the first PTW is within the first time unit, and the core network device in the first time unit does not have a paging time unit, then within the first time unit, the access network device sends a paging time unit to the terminal at the location of the first PTW. call message. If the location of the first PO is within the first time unit, and the access network device does not have a paging time unit within the first time unit, then within the first time unit, the core network device sends a paging time unit to the terminal at the location of the first PO. call message.

It can be understood that in case G, the access network device may also send the second parameter information to the core network device. After receiving the second parameter information, the core network device may determine the second time domain position according to the second parameter information.

Case H: The first time domain location includes the location of the first PO, and the second time domain location includes the location of the second PO.

A possible implementation manner, if the location of the first PO and the location of the second PO are within the first time unit, then within the first time unit, the access network device sends a paging message to the terminal at the location of the first PO . In this case, the core network device also sends a paging message to the terminal at the location of the first PO, so the terminal can be woken up in one paging time unit within the first time unit to receive the access network device and the core paging messages of network devices, thereby reducing the power consumption of the terminal. If the location of the first PO is within the first time unit, and the access network device does not have a paging time unit within the first time unit, the core network device sends a paging message to the terminal at the location of the first PO. If the location of the second PO is within the first time unit, and the core network device in the first time unit does not have a paging time unit, the access network device sends a paging message to the terminal at the location of the second PO.

It can be understood that, if the location of the first PO and the location of the second PO are within the first time unit, within the first time unit, the access network device and the core network device may also send a search request to the terminal at the location of the second PO. call message. In this case, the access network device may also send the second parameter information to the core network device. After receiving the second parameter information, the core network device may determine the second time domain position according to the second parameter information.

Based on the method shown in FIG. 8 , the access network device may determine the second parameter information according to the first parameter information, so that the position of the part of the paging time unit included in the second time domain location is the same as the part of the paging time unit included in the first time domain location. The positions of the call time units overlap in the time domain. In this way, for the overlapping paging time units in the first time domain location and the second time domain location, the terminal can be woken up in one of the paging time units, so that the terminal can both receive access network equipment and The paging message of the core network equipment can reduce the delay, improve the user experience, and reduce the power consumption of the terminal.

The actions of the access network equipment or the core network equipment or the terminal in the above S801-S802 may be executed by the processor 301 in the communication apparatus 30 shown in FIG. 3 calling the application code stored in the memory 303, and this application implements The example does not impose any restrictions on this.

It is understandable that when the terminal moves from the coverage of one access network device to the coverage of another access network device in the RRC-inactive state, the other access network device does not know that the terminal uses the eDRX mode to receive messages. eDRX parameters, so another access network device cannot page the terminal. In order to solve this problem, an embodiment of the present application provides a communication method. In the method, an access network device can send to another access network device that the terminal is within the coverage of the access network device and uses the eDRX mode to receive paging The eDRX parameters of the message, so that another access device can page the terminal according to the received eDRX parameters. Specifically, as shown in FIG. 10 , another communication method provided by the embodiment of the present application, the communication method includes S1001-S1002.

S1001: The first access network device sends eDRX parameter information to the second access network device. Correspondingly, the second access network device receives eDRX parameter information from the first access network device.

The first access network device and the second access network device may be access network devices in the communication system 20 shown in FIG. 2A . For example, the first access network device is the access network device 201 in the communication system 20, and the second access network device is the access network device 202 in the communication system 20; or, the first access network device is the communication system 20 The access network device 202 in the second access network device is the access network device 201 in the communication system 20 . Further, the identifier of the second access device is included in a tracking area (tracking area, TA) list of the first access network device. The TA list may indicate access network devices capable of receiving paging messages of the first access network device. The first access network device is a device that is communicatively connected before the terminal enters the RRC-inactive state. The terminal may be a terminal in the communication system 20 . If the first access network device is the access network device 201 in the communication system 20 , the terminal is the terminal 203 or the terminal 204 in the communication system 20 . If the first access network device is the access network device 202 in the communication system 20 , the terminal is the terminal 205 in the communication system 20 .

In a possible implementation manner, when the first access network device pages the terminal, the parameter information of the eDRX is sent to the second access network device.

It can be understood that in the scenario where the terminal receives the paging messages of the core network device and the access network device according to the same eDRX parameters, and in the scenario where the terminal receives the paging messages of the core network device and the access network device according to different eDRX parameters , the eDRX parameter information includes different contents.

As an example, in the scenario where the terminal receives the paging messages of the core network device and the access network device according to the same eDRX parameters, that is, for the methods shown in Figures 4 to 5, the parameter information of the eDRX includes the first a parameter information or a second parameter information. For example, if the terminal moves to the coverage of the second access network device before S402 or S503, the parameter information of the eDRX includes the first parameter information; if the terminal moves to the second access network device after S402 or S503 Within the coverage range, the parameter information of the eDRX includes the second parameter information. The parameter information of eDRX also includes the RAN DRX cycle configured by the first access network device. Optionally, the parameter information of eDRX also includes UE specific DRX cycle.

As another example, in the scenario where the terminal receives the paging messages of the core network device and the access network device according to different eDRX parameters, that is, for the method shown in FIG. 6 or FIG. 8, the parameter information of the eDRX includes: first parameter information and second parameter information. The parameter information of eDRX also includes the RAN DRX cycle configured by the first access network device. Optionally, the parameter information of eDRX also includes UE specific DRX cycle.

In a possible implementation manner, the parameter information of the eDRX may be a message, or may be an information element or a field contained in the message, which is not limited. As an example, the parameter information of the eDRX may be carried in a paging message (RAN paging message) of the access network device. It can be understood that, in addition to the parameter information of the eDRX, the paging message may also include other information. For example, the paging message may further include at least one of the following: a UE Identity Index Value (UE Identity Index Value), a radio access network (radio access network, RAN) paging identity (UE RAN Paging Identity) of the UE, a paging DRX (Paging DRX), RAN Paging Area (RAN Paging Area), Paging Priority (Paging Priority), RAN Paging Assistance Data (Assistance Data for RAN Paging), UE Radio Capability for Paging . Among them, the introduction of UE Identity Index Value, UE RAN Paging Identity, Paging DRX, RAN Paging Area, Paging Priority, Assistance Data for RAN Paging and UE Radio Capability for Paging can refer to the explanations of existing standards, and will not be repeated.

S1002: The second access network device sends a paging message to the terminal according to the parameter information of the eDRX. Correspondingly, the terminal receives the paging message from the second access network device according to the parameter information of the eDRX.

In a possible implementation manner, if the parameter information of the eDRX includes the first parameter information, the second access network device determines the first time domain location according to the first parameter information, and sends a paging message to the terminal at the first time domain location. If the parameter information of the eDRX includes the second parameter information, the second access network device determines the second time domain position according to the second parameter information, and sends a paging message to the terminal at the second time domain position. If the parameter information of the eDRX includes the first parameter information and the second parameter information, the second access network device sends a paging message to the terminal according to the method shown in FIG. 6 or FIG. 8 .

It should be noted that, the method shown in FIG. 10 may also be combined with the method shown in FIG. 4 , the method shown in FIG. 5 , the method shown in FIG. 6 or the method shown in FIG. 8 . For example, the method shown in FIG. 10 may be executed after S402, or before S502, or after S602, or after S802, which is not limited.

Based on the method shown in FIG. 10 , the first access network device can send to the second access network device the eDRX parameters that the terminal receives the paging message in the eDRX mode within the coverage of the first access network device, so that the second access network device can receive the eDRX parameters of the paging message in the eDRX mode. The incoming device can page the terminal according to the received eDRX parameters.

The actions of the first access network device or the second access network device or the terminal in the above S1001-S1002 can be performed by the processor 301 in the communication apparatus 30 shown in FIG. 3 calling the application code stored in the memory 303 to Implementation, this embodiment of the present application does not make any restrictions on this.

It can be understood that the access network device in the method shown in FIG. 4 , the method shown in FIG. 5 , the method shown in FIG. 6 , or the method shown in FIG. 8 may be a CU-DU separation architecture. In this case, the CU can send the eDRX parameter of the paging message to the DU by the terminal using the eDRX mode, so that the DU can page the terminal according to the eDRX parameter.

As shown in FIG. 11, another communication method provided by an embodiment of the present application includes S1101-S1102.

S1101: The CU sends eDRX parameter information to the DU. Correspondingly, the DU receives eDRX parameter information from the CU.

The CU may be the CU 2011 in FIG. 2B , and the DU may be the DU 2012 or DU 2013 in FIG. 2B .

As an example, in the scenario where the terminal receives the paging messages of the core network device and the access network device according to the same eDRX parameters, that is, for the methods shown in Figures 4 to 5, the parameter information of the eDRX includes the first a parameter information or a second parameter information. For example, S1101 is executed before S402 or S503, and the parameter information of eDRX includes the first parameter information; S1101 is executed after S402 or S503, and the parameter information of eDRX includes the second parameter information. The parameter information of eDRX also includes RAN DRX cycle and UE specific DRX cycle.

As another example, in the scenario where the terminal receives the paging messages of the core network device and the access network device according to different eDRX parameters, that is, for the method shown in FIG. 6 or FIG. 8, the parameter information of the eDRX includes: first parameter information and second parameter information. The parameter information of eDRX also includes RAN DRX cycle and UE specific DRX cycle.

In a possible implementation manner, the parameter information of the eDRX may be a message, or may be an information element or a field contained in the message, which is not limited. As an example, the parameter information of the eDRX may be carried in a paging message. It can be understood that, in addition to the parameter information of the eDRX, the paging message may also include other information. For example, the paging message may further include at least one of the following: UE Identity Index Value (UE Identity Index Value), Paging Identity (Paging Identity), Paging DRX (Paging DRX), Paging Priority (Paging Priority), Paging Cell List, Paging Origin. For the introduction of UE Identity Index Value, Paging Identity, Paging DRX, Paging Priority, Paging Cell List, and Paging Origin, please refer to the explanations of existing standards, and will not repeat them.

S1002: The DU sends a paging message to the terminal according to the parameter information of the eDRX. Correspondingly, the terminal receives the paging message from the DU according to the parameter information of the eDRX.

In a possible implementation manner, if the parameter information of the eDRX includes the first parameter information, the DU determines the first time domain position according to the first parameter information, and sends a paging message to the terminal at the first time domain position. If the parameter information of the eDRX includes the second parameter information, the DU determines the second time domain position according to the second parameter information, and sends a paging message to the terminal at the second time domain position. If the parameter information of the eDRX includes the first parameter information and the second parameter information, the DU sends a paging message to the terminal according to the method shown in FIG. 6 or FIG. 8 .

Based on the method shown in FIG. 11 , under the CU-DU separation architecture, the CU can send the eDRX parameter of the paging message to the DU using the eDRX mode, so that the DU can page the terminal according to the eDRX parameter.

The actions of the CU or DU or the terminal in the above S1101-S1102 may be executed by the processor 301 in the communication device 30 shown in FIG. 3 calling the application code stored in the memory 303, which is not performed in this embodiment of the present application any restrictions.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. It can be understood that, in order to implement the above-mentioned functions, the above-mentioned access network equipment, terminal, or core network equipment includes hardware structures and/or software modules corresponding to each function. Those skilled in the art should easily realize that the unit and algorithm operations of each example described in conjunction with the embodiments disclosed herein can be implemented in hardware or in the form of a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment of the present application, the access network equipment, the terminal, or the core network equipment may be divided into functional modules according to the foregoing method examples. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated in in a processing module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

For example, in the case of dividing each functional module in an integrated manner, FIG. 12 shows a schematic structural diagram of a communication device. The communication apparatus may include a processing module 1201 and a transceiver module 1202 .

In a possible implementation manner, the communication device may be an access network device or a chip or a system-on-a-chip in the access network device, or other combined devices, components, etc. that can realize the functions of the above-mentioned access network device. It can be used to execute the functions of the access network device involved in the embodiment shown in FIG. 4 and the functions of the first access network device involved in the embodiment shown in FIG. 10 .

When the communication device is an access network device, the processing module 1201 may be a processor, such as a baseband chip, etc., and the transceiver module 1202 may be a transceiver, which may include an antenna, a radio frequency circuit, and the like. When the communication device is a component having the functions of the above-mentioned access network equipment, the processing module 1201 may be a processor, and the transceiver module 1202 may be a radio frequency unit. When the communication device is a chip system, the processing module 1201 may be a processor of the chip system, for example, a CPU, and the transceiver module 1202 may be an input and output interface of the chip system.

The processing module 1201 is configured to acquire first parameter information, where the first parameter information is used to indicate extended discontinuous reception eDRX parameters, and the eDRX parameters are used for the communication device to send a paging message in an eDRX mode. Exemplarily, with reference to FIG. 4 , the processing module 1201 may be configured to execute S401.

The transceiver module 1202 is configured to send second parameter information to the core network equipment, where the second parameter information is used to indicate the changed eDRX parameters, and the changed eDRX parameters are used for the communication device to send the second parameter information, and then use the eDRX mode to send the search query. call message. Exemplarily, with reference to FIG. 4 , the transceiver module 1202 may be configured to perform S402.

In a possible implementation manner, the transceiver module 1202 is specifically configured to send the second parameter information to the core network device when it is determined that the terminal enters the radio resource control inactive RRC-inactive state.

A possible implementation manner, the processing module 1201 is further configured to determine whether to send the second parameter information to the core network device according to the terminal capability information and/or the first condition information; wherein, the terminal capability information is used to indicate the following information: At least one item: whether the terminal supports eDRX, whether the terminal supports the RRC-inactive state, whether the terminal supports eDRX in the RRC-inactive state; the first condition information is used to indicate whether the eDRX period included in the first parameter information is greater than or equal to the first time length.

In a possible implementation manner, the second parameter information is carried in the RRC inactive transition report.

A possible implementation manner, the processing module 1201 is specifically configured to receive the first parameter information from the core network device, the first parameter information is carried in the initial context establishment request message, or the core network auxiliary information carried in the RRC-inactive state middle.

In a possible implementation manner, the transceiver module 1202 is further configured to send the second parameter information to the terminal.

In a possible implementation manner, the transceiver module 1202 is configured to send the second parameter information to the terminal through an RRC release message or an RRC connection reconfiguration message.

In a possible implementation manner, the transceiver module 1202 is further configured to send parameter information of the first eDRX to the second access network device, where the parameter information of the first eDRX includes the first parameter information or the second parameter information.

In a possible implementation manner, the parameter information of the first eDRX further includes at least one of the DRX cycle of the access network device configured by the communication apparatus and the terminal-specific DRX cycle.

A possible implementation, the transceiver module 1202 is further configured to send parameter information of the first eDRX to the access network device in the tracking area list of the communication device, and the identifier of the second access network device is included in the tracking area of the communication device List.

In a possible implementation manner, the parameter information of the first eDRX is carried in the paging message of the access network device.

In a possible implementation manner, the communication device may be a terminal or a chip or a system-on-a-chip in the terminal, or other combined devices, components, etc. that can realize the above-mentioned terminal functions, and the communication device may be used to execute the above shown in FIG. 4 . The functions of the terminals involved in the embodiments.

When the communication device is a terminal, the processing module 1201 may be a processor, such as a baseband chip, etc., and the transceiver module 1202 may be a transceiver, which may include an antenna, a radio frequency circuit, and the like. When the communication device is a component with the above terminal function, the processing module 1201 may be a processor, and the transceiver module 1202 may be a radio frequency unit. When the communication device is a chip system, the processing module 1201 may be a processor of the chip system, for example, a CPU, and the transceiver module 1202 may be an input and output interface of the chip system.

The processing module 1201 is configured to acquire first parameter information, where the first parameter information is used to indicate an extended discontinuous reception eDRX parameter, and the eDRX parameter is used for the communication device to receive a paging message in an eDRX mode.

The transceiver module 1202 is configured to receive second parameter information from the first access network device, where the second parameter information is used to indicate the changed eDRX parameters, and the changed eDRX parameters are used for the communication device after receiving the second parameter information, Paging messages are received in eDRX mode.

In a possible implementation manner, the transceiver module 1202 is further configured to receive the second parameter information from the first access network device when the RRC-inactive state is entered.

In a possible implementation manner, the second parameter information is carried in the RRC release message or the RRC connection reconfiguration message.

In a possible implementation manner, the processing module 1201 is specifically configured to receive first parameter information from a core network device, where the first parameter information is carried in a non-access stratum NAS message.

In a possible implementation manner, the communication device may be a terminal or a chip or a system-on-chip in the terminal, or other combined devices, components, etc. that can realize the functions of the above-mentioned terminal. The functions of the terminals involved in the embodiments.

The processing module 1201 is configured to acquire first parameter information, where the first parameter information is used to indicate the second extended discontinuous reception eDRX parameter, and the second eDRX parameter is used for the communication device to receive the paging message in the eDRX mode.

The transceiver module 1202 is configured to receive first indication information from a first access network device or a core network device, where the first indication information is used to indicate a first eDRX parameter.

The transceiver module 1202 is further configured to receive a paging message by adopting the first eDRX parameter.

A possible implementation manner, the transceiver module 1202 is further configured to receive the first indication information from the first access network device through the RRC release message or the RRC connection reconfiguration message; the transceiver module 1202 is further configured to pass the non-access stratum The NAS message receives the first indication information from the core network device.

In a possible implementation manner, the processing module 1201 is specifically configured to receive the first parameter information from the core network device, and the first parameter information is carried in the NAS message.

In a possible implementation manner, the communication device may be an access network device or a chip or a system-on-a-chip in the access network device, or other combined devices, components, etc. that can realize the functions of the above-mentioned access network device. It can be used to execute the functions of the access network device involved in the embodiment shown in FIG. 6 and the functions of the first access network device involved in the embodiment shown in FIG. 10 .

The processing module 1201 is configured to obtain first parameter information, determine the first time domain position according to the first parameter information, the first parameter information is used to indicate the first extended discontinuous reception eDRX parameter, and the first eDRX parameter is used for the core The network device uses the eDRX mode to send the paging message, and the first time domain location includes the location of at least one paging time unit.

The transceiver module 1202 is configured to send a paging message to the terminal according to whether the core network device has a paging time unit within the first time unit, and within the first time unit, the communication device has a paging time unit.

A possible implementation manner, the processing module 1201 is further configured to determine the second time domain position according to the second parameter information, the second parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the communication device to send in the eDRX mode In the paging message, the second time domain location includes the location of at least one paging time unit.

In a possible implementation manner, the second parameter information is obtained according to the first parameter information, and in the first time unit, the paging time unit existing in the core network equipment and the paging time unit existing in the communication device have a difference in the time domain. overlapping.

In a possible implementation manner, the number of superframes in the eDRX cycle included in the first parameter information is an even number, and the identifier of the terminal is an even number.

In a possible implementation manner, the number of superframes in the eDRX cycle included in the second parameter information is an even number.

A possible implementation manner, the transceiver module 1202 is specifically configured to, if within the first time unit, the core network device has a paging time unit, then within the first time unit, send the terminal to the terminal in the paging time unit that exists in the communication device. Send a paging message, or, in the first time unit, send a paging message to the terminal in the paging time unit where the core network equipment exists; If the device does not have a paging time unit, within the first time unit, the communication device sends a paging message to the terminal in the paging time unit that exists.

A possible implementation manner, if in the first time unit, the core network equipment has a paging time unit, then the discontinuous reception DRX cycle in which the communication device sends the paging message is the default DRX cycle; or, the communication device sends the paging message. The DRX cycle of the message is the terminal-specific DRX cycle; or, the DRX cycle of the communication device sending the paging message is the DRX cycle of the access network equipment; or, the DRX cycle of the communication device sending the paging message is the default DRX cycle, the terminal-specific DRX cycle. The minimum or maximum value in the DRX cycle of the access network device and the DRX cycle of the access network device; or, if in the first time unit, the core network device does not have a paging time unit, then the DRX cycle for the communication device to send the paging message is The default DRX cycle; or, the DRX cycle in which the communication device sends the paging message is the DRX cycle of the access network device; or the DRX cycle in which the communication device sends the paging message is the default DRX cycle and the DRX cycle of the access network device. the minimum or maximum value of .

In a possible implementation manner, the first time unit is a superframe.

In a possible implementation manner, the transceiver module 1202 is further configured to send parameter information of the first eDRX to the second access network device, where the parameter information of the first eDRX includes the first parameter information and the second parameter information.

In a possible implementation manner, the identifier of the second access network device is included in the tracking area list of the communication apparatus.

In a possible implementation manner, the communication device may be a terminal or a chip or a system-on-a-chip in the terminal, or other combined devices, components, etc. that can realize the functions of the terminal. The functions of the terminals involved in the embodiments.

The processing module 1201 is used to obtain first parameter information and second parameter information, the first parameter information is used to indicate the first extended discontinuous reception eDRX parameter, and the first eDRX parameter is used by the terminal to receive data from the core network in eDRX mode. In the paging message of the device, the second parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the terminal to receive the paging message from the first access network device in the eDRX mode.

The processing module 1201 is further configured to determine a first time domain position according to the first parameter information, and determine a second time domain position according to the second parameter information, where the first time domain position includes the position of at least one paging time unit, and the second time domain position The location includes the location of at least one paging time unit.

The transceiver module 1202 is configured to receive, in the first time unit, a paging message from the first access network device and a paging message from the core network device according to whether the core network device has a paging time unit, and within the first time unit , the first access network device has a paging time unit.

In a possible implementation manner, the second parameter information is obtained according to the first parameter information, and within the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the first access network device are within the same time period. There is overlap in the time domain.

A possible implementation manner, the transceiver module 1202 is specifically configured to, if in the first time unit, the core network device has a paging time unit, then in the first time unit, the paging time that the first access network device exists in The paging message from the first access network device and the paging message from the core network device are received in the unit, or, in the first time unit, the paging time unit in which the core network device exists receives the paging message from the first access network The paging message of the device and the paging message from the core network device; or, the transceiver module 1202 is specifically configured to, if in the first time unit, the core network device does not have a paging time unit, then in the first time unit, The paging message from the core network device is received in the paging time unit where the core network device exists, and the paging message from the first access network device is received in the paging time unit where the first access network device exists in the first time unit. call message.

In a possible implementation manner, if the core network device has a paging time unit in the first time unit, the discontinuous reception DRX cycle for the terminal to receive the paging message is the default DRX cycle; The DRX cycle is the terminal-specific DRX cycle; or, the DRX cycle of the terminal receiving the paging message is the DRX cycle of the access network device; or, the DRX cycle of the terminal receiving the paging message is the default DRX cycle, and the terminal-specific DRX cycle and The minimum or maximum value in the DRX cycle of the access network device; or, if the core network device does not have a paging time unit within the first time unit, the DRX cycle for the terminal to receive the paging message of the core network device is the default or, the DRX cycle of the terminal receiving the paging message of the core network device is the terminal-specific DRX cycle; or, the DRX cycle of the terminal receiving the paging message of the core network device is the default DRX cycle and the terminal-specific DRX cycle The minimum value or the maximum value of ; or, if in the first time unit, the core network device does not have a paging time unit, the DRX cycle for the terminal to receive the paging message of the first access network device is the default DRX cycle; Or, the DRX cycle of the terminal receiving the paging message of the first access network device is the DRX cycle of the access network device; or, the DRX cycle of the terminal receiving the paging message of the first access network device is the default DRX cycle and the DRX cycle of the access network device. The minimum or maximum value in the DRX cycle of the connected device.

In a possible implementation manner, the processing module 1201 is specifically configured to receive second parameter information from the first access network device, where the second parameter information is carried in the RRC release message or the RRC connection reconfiguration message.

In a possible implementation manner, the communication device may be a core network device or a chip or a system-on-chip in the core network device, or other combined devices, components, etc. that can realize the functions of the above-mentioned core network device, and the communication device may be used for The functions of the core network equipment involved in the embodiment shown in FIG. 6 are executed.

When the communication device is a core network device, the processing module 1201 may be a processor, such as a baseband chip, etc., and the transceiver module 1202 may be a transceiver, which may include an antenna, a radio frequency circuit, and the like. When the communication device is a component having the functions of the above-mentioned core network equipment, the processing module 1201 may be a processor, and the transceiver module 1202 may be a radio frequency unit. When the communication device is a chip system, the processing module 1201 may be a processor of the chip system, for example, a CPU, and the transceiver module 1202 may be an input and output interface of the chip system.

The processing module 1201 is configured to acquire second parameter information, determine the second time domain position according to the second parameter information, the second parameter information is used to indicate the second extended discontinuous reception eDRX parameter, and the second eDRX parameter is used to An access network device uses the eDRX mode to send the paging message, and the second time domain location includes the location of at least one paging time unit.

The transceiver module 1202 is configured to send a paging message to the terminal according to whether the communication device has a paging time unit within the first time unit, and within the first time unit, the first access network device has a paging time unit.

A possible implementation manner, the processing module 1201 is further configured to determine the first time domain position according to the first parameter information, the first parameter information is used to indicate the first eDRX parameter, and the first eDRX parameter is used for the communication device to send in the eDRX mode In the paging message, the first time domain location includes the location of at least one paging time unit.

In a possible implementation manner, the second parameter information is obtained according to the first parameter information, and within the first time unit, the paging time unit existing in the communication device and the paging time unit existing in the first access network device are at the same time. There is overlap on the domain.

A possible implementation manner, the transceiver module 1202 is specifically configured to, if within the first time unit, the communication device has a paging time unit, then within the first time unit, the first access network device has a paging time unit. send a paging message to the terminal in the middle, or, in the first time unit, send a paging message to the terminal in the paging time unit where the communication device exists; or, the transceiver module 1202 is specifically used for, if in the first time unit, If the communication device does not have a paging time unit, in the first time unit, the communication device sends a paging message to the terminal in the paging time unit where the communication device exists.

A possible implementation manner, if the communication device has a paging time unit in the first time unit, the discontinuous reception DRX cycle in which the communication device sends the paging message is the default DRX cycle; or, the communication device sends the paging message. The DRX cycle is the terminal-specific DRX cycle; or, the DRX cycle that the communication device sends the paging message is the DRX cycle of the access network equipment; or the DRX cycle that the communication device sends the paging message is the default DRX cycle, the terminal-specific DRX cycle The minimum or maximum value of the DRX cycle and the DRX cycle of the access network equipment; or, in the first time unit, if the communication device does not have a paging time unit, then the discontinuous reception DRX cycle for the communication device to send the paging message is: The default DRX cycle; or, the DRX cycle in which the communication device sends the paging message is a terminal-specific DRX cycle; or, the DRX cycle in which the communication device sends the paging message is the minimum of the default DRX cycle and the terminal-specific DRX cycle, or maximum value.

In a possible implementation manner, the processing module 1201 is specifically configured to receive second parameter information from the first access network device, where the second parameter information is carried in the RRC inactivity transition report.

In a possible implementation manner, the communication device may be an access network device or a chip or a system-on-a-chip in the access network device, or other combined devices, components, etc. that can realize the functions of the above-mentioned access network device. It can be used to execute the functions of the access network device involved in the embodiment shown in FIG. 8 and the functions of the first access network device involved in the embodiment shown in FIG. 10 .

The processing module 1201 is further configured to obtain second parameter information, and determine the second time domain configuration according to the second parameter information, the second parameter information is obtained according to the first parameter information, and the second parameter information is used to indicate the second eDRX parameter, The second eDRX parameter is used by the communication device to send the paging message in the eDRX mode, and the second time domain location includes the location of at least one paging time unit.

The transceiver module 1202 is configured to send a paging message according to the first time domain location and the second time domain location.

In a possible implementation manner, in the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the communication apparatus overlap in the time domain.

A possible implementation manner, the transceiver module 1202 is specifically configured to send a paging message to the terminal in the paging time unit existing in the communication device in the first time unit, or, in the paging time unit existing in the core network equipment or, the transceiver module 1202 is specifically configured to send a paging message to the terminal in a paging time unit where the communication device exists outside the first time unit.

A possible implementation manner, in the first time unit, the discontinuous reception DRX cycle in which the communication device sends the paging message is the default DRX cycle; or the DRX cycle in which the communication device sends the paging message is the terminal-specific DRX cycle; Or, the DRX cycle of the communication device sending the paging message is the DRX cycle of the access network equipment; or, the DRX cycle of the communication device sending the paging message is the default DRX cycle, the terminal-specific DRX cycle and the DRX cycle of the access network device Outside the first time unit, the DRX cycle of the communication device sending the paging message is the default DRX cycle; Or, the DRX cycle of the communication device sending the paging message is the DRX cycle of the access network equipment; Alternatively, the DRX cycle in which the communication apparatus sends the paging message is the minimum or maximum value among the default DRX cycle and the DRX cycle of the access network device.

In a possible implementation manner, the first time unit is a superframe.

In a possible implementation manner, the communication device may be a terminal or a chip or a system-on-chip in the terminal, or other combined devices, components, etc. that can realize the functions of the above-mentioned terminal, and the communication device may be used to perform the above-mentioned operations shown in FIG. 8 . The functions of the terminals involved in the embodiments.

The processing module 1201 is configured to acquire first parameter information, determine the first time domain position according to the first parameter information, the first parameter information is used to indicate the first extended discontinuous reception eDRX parameter, and the first eDRX parameter is used for communication The apparatus adopts the eDRX mode to receive the paging message from the core network equipment, and the first time domain location includes the location of at least one paging time unit.

The processing module 1201 is further configured to obtain second parameter information, and determine the second time domain configuration according to the second parameter information, the second parameter information is obtained according to the first parameter information, and the second parameter information is used to indicate the second eDRX parameter, The second eDRX parameter is used by the communication apparatus to receive the paging message from the first access network device in the eDRX mode, and the second time domain location includes the location of at least one paging time unit.

The transceiver module 1202 is configured to receive a paging message according to the first time domain location and the second time domain location.

In a possible implementation manner, in the first time unit, the paging time unit existing in the core network device and the paging time unit existing in the first access network device overlap in the time domain.

In a possible implementation manner, the number of superframes in the eDRX cycle included in the first parameter information is an even number, and the identifier of the communication device is an even number.

A possible implementation manner, the transceiver module 1202 is specifically configured to receive, in the first time unit, a paging message from the first access network device and a paging message from the core in the paging time unit where the first access network device exists network device, or receive a paging message from the first access network device and a paging message from the core network device in the paging time unit that exists in the core network device; or, the transceiver module 1202, specifically using Outside the first time unit, the paging message from the core network device is received in the paging time unit where the core network device exists, and the paging message from the first access network device is received in the paging unit where the first access network device exists. paging message.

A possible implementation manner, in the first time unit, the discontinuous reception DRX cycle in which the communication device receives the paging message is a default DRX cycle; or, the DRX cycle in which the communication device receives the paging message is a DRX cycle specific to the communication device Or, the DRX cycle that the communication device receives the paging message is the DRX cycle of the access network equipment; Or, the DRX cycle that the communication device receives the paging message is the default DRX cycle, the specific DRX cycle of the communication device and the DRX cycle of the access network equipment The minimum or maximum value in the DRX cycle; outside the first time unit, the DRX cycle for the communication device to receive the paging message of the core network device is the default DRX cycle; or, the DRX cycle for the communication device to receive the paging message of the core network device The cycle is the DRX cycle specific to the communication device; or, the DRX cycle for the communication device to receive the paging message of the core network device is the minimum or maximum value between the default DRX cycle and the DRX cycle specific to the communication device; outside the first time unit , the DRX cycle of the communication device receiving the paging message of the first access network device is the default DRX cycle; or, the DRX cycle of the communication device receiving the paging message of the first access network device is the DRX cycle of the access network device; Alternatively, the DRX cycle in which the communication apparatus receives the paging message of the first access network device is the minimum value or the maximum value among the default DRX cycle and the DRX cycle of the access network device.

In a possible implementation manner, the communication device may be a core network device or a chip or a system-on-chip in the core network device, or other combined devices, components, etc. that can realize the functions of the above-mentioned core network device, and the communication device may be used for The functions of the core network equipment involved in the embodiment shown in FIG. 8 are executed.

The processing module 1201 is configured to acquire first parameter information, determine the first time domain position according to the first parameter information, the first parameter information is used to indicate the first extended discontinuous reception eDRX parameter, and the first eDRX parameter is used for communication The device sends the paging message in the eDRX mode, and the first time domain location includes the location of at least one paging time unit.

The processing module 1201 is further configured to obtain second parameter information, and determine the second time domain configuration according to the second parameter information, the second parameter information is obtained according to the first parameter information, and the second parameter information is used to indicate the second eDRX parameter, The second eDRX parameter is used by the first access network device to send the paging message in the eDRX mode, and the second time domain location includes the location of at least one paging time unit.

In a possible implementation manner, in the first time unit, the paging time unit existing in the communication apparatus and the paging time unit existing in the first access network device overlap in the time domain.

A possible implementation manner, the transceiver module 1202 is specifically configured to send a paging message to the terminal during the paging time when the first access network device exists in the first time unit, or, in the paging time when the communication device exists Send the paging message to the terminal in the time unit; or, the transceiver module 1202 is specifically configured to send the paging message to the terminal in the paging time unit where the communication device exists outside the second time unit.

A possible implementation manner, in the first time unit, the discontinuous reception DRX cycle in which the communication device sends the paging message is the default DRX cycle; or the DRX cycle in which the communication device sends the paging message is the terminal-specific DRX cycle; Or, the DRX cycle of the communication device sending the paging message is the DRX cycle of the access network equipment; or, the DRX cycle of the communication device sending the paging message is the default DRX cycle, the terminal-specific DRX cycle and the DRX cycle of the access network device Outside the first time unit, the DRX cycle in which the communication device sends the paging message is the default DRX cycle; or, the DRX cycle in which the communication device sends the paging message is the terminal-specific DRX cycle; or, The DRX cycle in which the communication device sends the paging message is the minimum or maximum value among the default DRX cycle and the terminal-specific DRX cycle.

Wherein, all relevant contents of the operations involved in the foregoing method embodiments can be cited in the functional descriptions of the corresponding functional modules, which will not be repeated here.

In this embodiment, the communication device is presented in the form of dividing each functional module in an integrated manner. "Module" herein may refer to a specific ASIC, circuit, processor and memory executing one or more software or firmware programs, integrated logic circuit, and/or other device that may provide the functions described above. In a simple embodiment, those skilled in the art can imagine that the communication device may take the form shown in FIG. 3 .

For example, the processor 301 in FIG. 3 may invoke the computer-executed instructions stored in the memory 303 to cause the communication apparatus to execute the communication method in the foregoing method embodiment.

Exemplarily, the functions/implementation process of the processing module 1201 and the transceiver module 1202 in FIG. 12 may be implemented by the processor 301 in FIG. 3 calling the computer-executed instructions stored in the memory 303 . Alternatively, the function/implementation process of the processing module 1201 in FIG. 12 can be implemented by the processor 301 in FIG. 3 calling the computer execution instructions stored in the memory 303, and the function/implementation process of the transceiver module 1202 in FIG. 3 of the communication interface 304 to achieve.

Since the communication device provided in this embodiment can perform the above-mentioned communication method, the technical effect that can be obtained may refer to the above-mentioned method embodiment, which will not be repeated here.

For example, in the case of dividing each functional module in an integrated manner, FIG. 13 shows a schematic structural diagram of a communication apparatus. The communication device may include a transceiver module 1301 .

In a possible implementation manner, the communication device may be a core network device or a chip or a system-on-chip in the core network device, or other combined devices, components, etc. that can realize the functions of the above-mentioned core network device, and the communication device may be used for The functions of the core network equipment involved in the embodiment shown in FIG. 4 are executed.

When the communication device is a core network device, the transceiver module 1301 may be a transceiver, and may include an antenna, a radio frequency circuit, and the like. When the communication device is a component having the functions of the above-mentioned core network equipment, the transceiver module 1301 may be a radio frequency unit. When the communication device is a chip system, the transceiver module 1301 may be an input and output interface of the chip system.

The transceiver module 1301 is configured to send first parameter information to the first access network device, where the first parameter information is used to indicate extended discontinuous reception eDRX parameters, and the eDRX parameters are used by the communication apparatus to send paging messages in eDRX mode.

The transceiver module 1301 is further configured to receive second parameter information from the first access network device, where the second parameter information is used to indicate the changed eDRX parameters, and the changed eDRX parameters are used after the communication device receives the second parameter information , the paging message is sent in eDRX mode.

In a possible implementation manner, the transceiver module 1301 is further configured to receive the second parameter information from the first access network device when the terminal enters the radio resource control inactive RRC-inactive state.

In a possible implementation manner, the first parameter information is carried in the initial context establishment request message, or carried in the core network assistance information in the RRC-inactive state.

In a possible implementation manner, the transceiver module 1301 is further configured to send the second parameter information to the terminal.

In a possible implementation manner, the transceiver module 1301 is further configured to send the first parameter information to the terminal, where the first parameter information is carried in the non-access stratum NAS message.

In a possible implementation manner, the communication device may be a core network device or a chip or a system-on-chip in the core network device, or other combined devices, components, etc. that can realize the functions of the above-mentioned core network device, and the communication device may be used for The functions of the core network equipment involved in the embodiment shown in FIG. 5 are executed.

The transceiver module 1301 is configured to receive auxiliary information from the first access network device, and the auxiliary information is used to assist the communication apparatus to configure eDRX parameters.

The transceiver module 1301 is further configured to send first indication information to the first access network device, where the first indication information is used to indicate the first extended discontinuous reception eDRX parameter.

The transceiver module 1301 is further configured to send a paging message by using the first eDRX parameter.

In a possible implementation manner, the transceiver module 1301 is further configured to receive auxiliary information from the first access network device when the terminal is about to enter the radio resource control inactive RRC-inactive state.

In a possible implementation manner, the auxiliary information is carried in the terminal context suspension request message or the terminal capability information indication message.

In a possible implementation manner, the transceiver module 1301 is further configured to send the first indication information to the first access network device through a terminal context termination response.

In a possible implementation manner, the transceiver module 1301 is further configured to send the first indication information to the terminal.

In a possible implementation manner, the transceiver module 1301 is further configured to send the first indication information to the terminal through a non-access stratum NAS message.

A possible implementation manner, the transceiver module 1301 is further configured to send the first parameter information to the first access network device, the first parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the communication device to send the first parameter information. Before the indication information, the paging message is sent in the eDRX mode.

A possible implementation manner, the transceiver module 1301 is further configured to send the first parameter information to the terminal, the first parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the communication device to send the first indication information, using The eDRX mode sends paging messages.

In a possible implementation manner, the transceiver module 1301 is further configured to send the first parameter information to the terminal through a non-access stratum NAS message.

In a possible implementation manner, the communication device may be a second access network device or a chip or a system-on-a-chip in the second access network device, or other combined devices that can implement the functions of the second access network device, components, etc., the communication apparatus can be used to perform the functions of the second access network device involved in the embodiment shown in FIG. 10 above.

When the communication apparatus is the second access network device, the transceiver module 1301 may be a transceiver, and may include an antenna, a radio frequency circuit, and the like. When the communication apparatus is a component having the function of the above-mentioned second access network device, the transceiver module 1301 may be a radio frequency unit. When the communication device is a chip system, the transceiver module 1301 may be an input and output interface of the chip system.

The transceiver module 1301 is configured to receive parameter information of the first eDRX from the first access network device, the parameter information of the first eDRX includes first parameter information or first indication information, and the first parameter information is used to indicate the second The extended discontinuous reception eDRX parameter, the second eDRX parameter is used to send a paging message to the terminal in the eDRX mode before the first access network device receives the first indication information, and the first indication information is used to indicate the first eDRX parameter, The first eDRX parameter is used for the first access network device to send a paging message to the terminal in the eDRX mode after receiving the first indication information.

The transceiver module 1301 is further configured to send a paging message to the terminal according to the parameter information of the first eDRX.

In a possible implementation manner, the parameter information of the first eDRX further includes at least one of a DRX cycle of the access network device configured by the first access network device and a terminal-specific DRX cycle.

In a possible implementation manner, the identifier of the communication apparatus is included in the tracking area list of the first access network device.

Exemplarily, the function/implementation process of the transceiver module 1301 in FIG. 13 can be implemented by the processor 301 in FIG. 3 calling the computer-executed instructions stored in the memory 303 . Alternatively, the function/implementation process of the transceiver module 1301 in FIG. 13 may be implemented through the communication interface 304 in FIG. 3 .

For example, in the case of dividing each functional module in an integrated manner, FIG. 14 shows a schematic structural diagram of a communication device. The communication device may include a transceiver module 1401 and a processing module 1402 .

When the communication device is the second access network device, the transceiver module 1401 may be a transceiver, which may include an antenna and a radio frequency circuit, and the processing module 1402 may be a processor, such as a baseband chip. When the communication apparatus is a component having the function of the above-mentioned second access network device, the transceiver module 1401 may be a radio frequency unit, and the processing module 1402 may be a processor. When the communication device is a chip system, the transceiver module 1401 may be an input/output interface of the chip system, and the processing module 1402 may be a processor of the chip system, for example, a CPU.

For example, the transceiver module 1401 is configured to receive parameter information of the first eDRX from the first access network device, the parameter information of the first eDRX includes first parameter information or second parameter information, and the first parameter information is used to indicate the extended Discontinuous reception of eDRX parameters, the eDRX parameters are used for the first access network device to send a paging message to the terminal using the eDRX mode, the second parameter information is used to indicate the changed eDRX parameters, and the changed eDRX parameters are used for the first access After sending the second parameter information, the network device sends a paging message to the terminal in the eDRX mode.

The processing module 1402 is configured to send a paging message to the terminal according to the parameter information of the first eDRX.

For another example, the transceiver module 1401 is configured to receive parameter information of the first eDRX from the first access network device, the parameter information of the first eDRX includes first parameter information and second parameter information, and the first parameter information is used to indicate the first eDRX parameter information. An extended discontinuous reception eDRX parameter, the first eDRX parameter is used for the core network device to send a paging message to the terminal using the eDRX mode, the second parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used for the first access The network device sends a paging message to the terminal in the eDRX mode, and the second parameter information is obtained according to the first parameter information.

The processing module 1402 is configured to determine a first time domain position according to the first parameter information, and determine a second time domain position according to the second parameter information, where the first time domain position includes the position of at least one paging time unit, and the second time domain position Include the location of at least one paging time unit.

The transceiver module 1401 is further configured to send a paging message according to the first time domain location and the second time domain location shown.

A possible implementation manner, the transceiver module 1401 is specifically configured to send a paging message to the terminal in the paging time unit where the first access network device exists in the first time unit, or, when the core network device exists in the paging time unit. Send the paging message to the terminal in the paging time unit; or, the transceiver module 1401 is specifically configured to send the paging message to the terminal in the paging time unit where the first access network device exists outside the first time unit.

In a possible implementation manner, the transceiver module 1401 is configured to receive parameter information of the first eDRX from the first access network device, the parameter information of the first eDRX includes first parameter information and second parameter information, the first The parameter information is used to indicate the first extended discontinuous reception eDRX parameter, the first eDRX parameter is used for the core network device to send a paging message to the terminal using the eDRX mode, the second parameter information is used to indicate the second eDRX parameter, the second eDRX parameter It is used for the first access network device to send a paging message to the terminal in the eDRX mode.

The transceiver module 1401 is configured to send a paging message to the terminal according to whether the core network device has a paging time unit within the first time unit, and the first access network device has a paging time unit within the first time unit.

A possible implementation manner, the transceiver module 1401 is specifically configured to, if within the first time unit, the core network device has a paging time unit, then within the first time unit, the first access network device has the paging time The unit sends a paging message to the terminal, or, in the first time unit, the core network device sends a paging message to the terminal in the paging time unit; or, the transceiver module 1401 is specifically used if the first time unit If the core network device does not have a paging time unit, then in the first time unit, the first access network device sends a paging message to the terminal in the paging time unit that exists in the first access network device.

A possible implementation manner, if in the first time unit, the core network equipment has a paging time unit, then the discontinuous reception DRX cycle in which the communication device sends the paging message is the default DRX cycle; or, the communication device sends the paging message. The DRX cycle of the message is the terminal-specific DRX cycle; or, the DRX cycle of the communication device sending the paging message is the DRX cycle of the access network equipment; or, the DRX cycle of the communication device sending the paging message is the default DRX cycle, the terminal-specific DRX cycle. The minimum or maximum value in the DRX cycle of the access network equipment and the DRX cycle of the access network equipment; if in the first time unit, the core network equipment does not have a paging time unit, the communication device sends the DRX cycle of the discontinuous reception of the paging message is the default DRX cycle; or, the DRX cycle in which the communication device sends the paging message is the DRX cycle of the access network equipment; or the DRX cycle in which the communication device sends the paging message is the default DRX cycle and the DRX cycle of the access network device the minimum or maximum value in .

Exemplarily, the functions/implementation process of the transceiver module 1401 and the processing module 1402 in FIG. 14 may be implemented by the processor 301 in FIG. 3 calling the computer-executed instructions stored in the memory 303 . Alternatively, the function/implementation process of the processing module 1402 in FIG. 14 can be implemented by the processor 301 in FIG. 3 calling the computer-executed instructions stored in the memory 303, and the function/implementation process of the transceiver module 1401 in FIG. 3 of the communication interface 304 to achieve.

For example, in the case of dividing each functional module in an integrated manner, FIG. 15 shows a schematic structural diagram of a communication device. The communication device may include a transceiver module 1501 . Optionally, the communication apparatus further includes a processing module 1502 .

In a possible implementation manner, the communication device may be an access network device or a chip or a system-on-a-chip in the access network device, or other combined devices, components, etc. that can realize the functions of the above-mentioned access network device. It can be used to execute the functions of the access network device involved in the embodiment shown in FIG. 5 and the functions of the first access network device involved in the embodiment shown in FIG. 10 .

When the communication device is an access network device, the transceiver module 1501 may be a transceiver, which may include an antenna and a radio frequency circuit, and the processing module 1502 may be a processor, such as a baseband chip. When the communication device is a component having the functions of the above-mentioned access network equipment, the transceiver module 1501 may be a radio frequency unit, and the processing module 1502 may be a processor. When the communication device is a system-on-chip, the transceiver module 1501 may be an input/output interface of the system-on-chip, and the processing module 1502 may be a processor of the system-on-chip, for example, a CPU.

The transceiver module 1501 is used to send auxiliary information to the core network device, and the auxiliary information is used to assist the core network device to configure eDRX parameters.

The transceiver module 1501 is further configured to receive first indication information from the core network device, where the first indication information is used to indicate the first extended discontinuous reception eDRX parameter.

The transceiver module 1501 is further configured to send a paging message by using the first eDRX parameter.

A possible implementation manner, the processing module 1501 is used to obtain first parameter information, the first parameter information is used to indicate the second eDRX parameter, and the second eDRX parameter is used to receive the first indication information. Before the communication device adopts the eDRX mode Send a paging message.

In a possible implementation manner, the transceiver module 1501 is further configured to send auxiliary information to the core network device when it is determined that the terminal is about to enter the radio resource control inactive RRC-inactive state.

In a possible implementation manner, the processing module 1502 is further configured to determine whether to send auxiliary information to the core network device according to the terminal capability information and/or the first condition information; wherein the terminal capability information is used to indicate at least one of the following information: Item: whether the terminal supports eDRX, whether the terminal supports the RRC-inactive state, whether the terminal supports eDRX in the RRC-inactive state; the first condition information is used to indicate whether the eDRX period included in the first parameter information is greater than or equal to the first time length.

In a possible implementation manner, the first indication information is carried in the terminal context termination response.

A possible implementation, the processing module 1502 is specifically configured to receive the first parameter information from the core network device, the first parameter information is carried in the initial context establishment request message, or the core network auxiliary information carried in the RRC-inactive state middle.

In a possible implementation manner, the transceiver module 1501 is further configured to send parameter information of the first eDRX to the second access network device, where the parameter information of the first eDRX includes first parameter information or first indication information.

A possible implementation, the transceiver module 1501 is further configured to send parameter information of the first eDRX to the access network device in the tracking area list of the communication device, and the identifier of the second access network device is included in the tracking area of the communication device List.

Exemplarily, the functions/implementation process of the transceiver module 1501 and the processing module 1502 in FIG. 15 can be implemented by the processor 301 in FIG. 3 calling the computer-executed instructions stored in the memory 303 . Alternatively, the function/implementation process of the processing module 1502 in FIG. 15 can be implemented by the processor 301 in FIG. 3 calling the computer execution instructions stored in the memory 303, and the function/implementation process of the transceiver module 1501 in FIG. 3 of the communication interface 304 to achieve.

The embodiments of the present application also provide a computer-readable medium. All or part of the processes in the above method embodiments may be completed by instructing relevant hardware by a computer program, the program may be stored in the above computer readable medium, and when executed, the program may include the processes in the above method embodiments. The computer-readable medium may be the communication device of any of the foregoing embodiments, for example, an internal storage unit including a transmitting end and/or a receiving end, such as a hard disk or a memory of the communication device. The above-mentioned computer-readable medium can also be an external storage device of the above-mentioned communication device, such as a plug-in hard disk equipped on the above-mentioned communication device, a smart memory card (smart media card, SMC), a secure digital (secure digital, SD) card, flash memory card (flash card), etc. Further, the above-mentioned computer-readable medium may also include both an internal storage unit of the above-mentioned communication apparatus and an external storage device. The above-mentioned computer-readable medium is used for storing the above-mentioned computer program and other programs and data required by the above-mentioned communication device. The computer-readable medium described above can also be used to temporarily store data that has been output or is to be output.

The embodiments of the present application also provide a computer program product. All or part of the processes in the above method embodiments may be completed by a computer program instructing relevant hardware, the program may be stored in the above computer program product, and when executed, the program may include the processes in the above method embodiments.

The embodiments of the present application also provide a computer instruction. All or part of the processes in the above method embodiments may be completed by computer instructions to instruct relevant hardware (eg, computers, processors, access network devices, mobility management network elements or session management network elements, etc.). The program may be stored in the above-mentioned computer-readable medium or in the above-mentioned computer program product.

From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is used as an example for illustration. In specific applications, the above functions can be allocated as required. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be Incorporation may either be integrated into another device, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place, or may be distributed to multiple different places . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, which are stored in a storage medium , including several instructions to make a device (may be a single chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this, and any changes or substitutions within the technical scope disclosed in the present application should be covered within the protection scope of the present application. . Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

The embodiments of the present application also provide the following solutions:

1 Introduction

Agreements:

In this contribution, we continue to discuss eDRX measurement relaxation.

2 Discussion on eDRX

2.1 The lower boundary of eDRX cycle

As agreed in last meeting,it should be possible for(at least some)RedCap UEs to receive emergency broadcast services.Different options allowing RedCap UEs to receive emergency broadcast services and/or reduce paging power consumption(and corresponding recommended eDRX are lower boundary) captured in[2]as followers.

Option 1: eDRX supports a lower bound of 2.56s.

Option 2:For RedCap UEs,if the NAS configures the UE with a 2.56 DRX cycle,the RedCap UE follows this DRX even when the RAN paging cycle is shorter.eDRX lower bound can be kept to baseline 5.12s.

Option 3:gNB can configure 2.56s default broadcasted DRX cycle for those RedCap Ues that need to receive emergency broadcast services and a shorter UE-specific RAN paging cycle for Ues with tighter latency requirements(e.g.smartphones).eDRX lower bound can be kept to baseline 5.12s.

Option 4:RedCap Ues that need to receive emergency broadcast services are not expected to request to be configured with eDRX,and no specific handling/configuration is required for those Ues.eDRX lower bound can be kept to baseline 5.12s.

Option 5:RedCap UE can request an eDRX configuration while still monitoring in between for ETWS and CMAS.eDRX lower bound can be kept to baseline 5.12s.

Among them,Option 1 and 2(i.e.Solution 1 in TR38.875[3])assume that RedCap UEs do not need to monitor paging according to the default paging cycle, which may result in a potential risk of UE missing SI change indicator. Additional efforts have to be made to deal with the associated issues. Option 3(i.e. Solution 2 in TR38.875) is based on the assumption that gNB are configured with a 2.56second default paging cycle, which is seldom used in existing deployments. Option 4assumes that RedCap UEs should decide between benefiting from eDRX power saving or supporting emergency broadcast services.Hence,we prefer option 5,wherein RedCap UE can request an eDRX configuration while still monitoring in between for ETWS and CMAS.eDRX lower boundary can be kept to the baseline 5.12s.

Proposal 1:RedCap UE can request an eDRX configuration while still monitoring in between for ETWS and CMAS.eDRX lower bound can be kept to the baseline 5.12s.(Option 5)

2.2 eDRX cycle length for RRC_INACTIVE

Extending the eDRX cycle in RRC_INACTIVE beyond 10.24 seconds for RedCap UEs have shown several benefits, including the support of SDT(small data transfer) and power saving gain. However, some issues have ACTIVE resulted, like the PTW and eDRX cycle configuration for RRC_IDLE and RRC_IN .Four solutions have been captured in[3]taking into account flexibility and simplicity.Among them,a common PTW and eDRX cycle configuration for RRC_IDLE and RRC_INACTIVE is the simplest solution but has no flexibility.In LTE,the eDRX cycle in RRC_INACTIVE isusually shorter than in RRC_IDLE, which allows shorter paging latency and faster state transition. To allow a flexible configuration as in LTE, it is proposed that the eDRX cycle length in RRC_INACTIVE can be different from RRC_IDLE, however the PTW length can be common for simplicity. If common PTW and eDRX cycle configuration is supported,a flexible configuration method which can satisfy requirements of both RAN and CN should be studied.For example,a shorter eDRX cycle used in RRC_INACTIVE should be allowed, compared with RRC_IDLE.Besides, power consumption of paging monitoring should also be considered for setting reasonable eDRX configuration such the PTW length.

Proposal 2:The eDRX cycle length for RRC_INACTIVE can be different from RRC_IDLE for flexibility while having a common PTW length for simplicity.

Proposal 3:A flexible configuration method should be studied if a common PTW and eDRX cycle configuration is supported.

Another issue associated with introducing longer eDRX cycle in RRC_INACTIVE is the deciding node for the eDRX configuration. In R16 eMTC connected to 5GC, the ng-RAN decides the eDRX cycle for RRC_INACTIVE, based on the idle mode eDRX cycle provided by the configuration. The same principle can be applied in NR to provide flexibility to the RAN node. Suppose Proposal 2 is supported, the UE can be configured with a shorter eDRX cycle in RRC_INACTIVE by the RAN and monitors the shortest of the eDRX cycle for RRC_IDLE and deDRX for RRC_INACTIVE.Besides,NAS retransmission parameters in CN should be taken into account for setting eDRX cycle in RRC_INACTIVE,otherwise the eDRX cycle in RRC_INACTIVE configured by the RAN may be larger than the time period that CN can accept due to NAS retransmission. Different CNs may support different NAS retransmission mechanisms,e.g.minimum retransmission interval and/or maximum number of retransmissions are decided by network implementation,th us it is reasonable for the CN to provide a maximum value of eDRX cycle in RRC_INACTIVE to RAN for reference,and RAN can configure eDRX cycle in RRC_INACTIVE based on it.Therefore,it is proposed that based on the provided information(e.g.,idle mode eDRX cycle,maximum value of inactive mode eDRX cycle…)by the CN,RAN decides the eDRX cycle for RRC_INACTIVE.

Proposal 4:RAN decides the eDRX cycle for RRC_INACTIVE.

Proposal 5:AMF provides information to the RAN for the setting of the eDRX cycle in RRC_INACTIVE

2.3 SI acquisition in eDRX mechanism

In non-eDRX scenario,when the network changes(some of the)system information,it first notifies the UEs about this change throughout a modification period,and transmits the updated system information in the following modification period.The length of modification period equals modificationPeriodCoeff *defaultPagingCycle and the maximum value of modificationPeriodCoeff is 4.When eDRX mechanism is introduced in NR,the eDRX cycle may be larger than the SI modification period.Then,the UE may miss the SI change notification.In LTE,an eDRX SI modification indication and an eDRX acquisition period were introduced. Then, it is proposed that the LTE eDRX SI acquisition mechanism is considered as baseline.

Proposal 6:The LTE eDRX SI acquisition mechanism is considered as the baseline.

3 Conclusions and Proposals

In this contribution, eDRX for reduced capability UEs was discussed with the following observations and proposals:

Proposal 1:RedCap UE can request an eDRX configuration while still monitoring in between for ETWS and CMAS.eDRX lower bound can be kept to baseline 5.12s.(Option5)

Proposal 2:RAN decides the eDRX parameters for RRC_INACTIVE.

Proposal 3: eDRX cycle length for RRC_INACTIVE could be different from that for RRC_IDLE for flexibility but they can have common PTW configuration for simplicity.

Proposal 4:SI acquisition enhancement mechanism for eDRX in LTE can be considered as baseline.

Claims

A communication method, applied to a first access network device, characterized in that the method includes:

acquiring first parameter information, where the first parameter information is used to indicate an extended discontinuous reception eDRX parameter, and the eDRX parameter is used by the first access network device to send a paging message in an eDRX mode;

Send second parameter information to the core network device, where the second parameter information is used to indicate the changed eDRX parameters, and the changed eDRX parameters are used after the first access network device sends the second parameter information , the paging message is sent in eDRX mode.
The method of claim 1, wherein:

When it is determined that the terminal enters the radio resource control inactive RRC-inactive state, the second parameter information is sent to the core network device.
The method according to claim 1 or 2, wherein the method further comprises:

determining whether to send the second parameter information to the core network device according to the terminal capability information and/or the first condition information;

The terminal capability information is used to indicate at least one of the following information: whether the terminal supports eDRX, whether the terminal supports the RRC-inactive state, whether the terminal supports eDRX in the RRC-inactive state; the first The condition information is used to indicate whether the eDRX cycle included in the first parameter information is greater than or equal to the first time length.
The method according to any one of claims 1-3, wherein the second parameter information is carried in an RRC inactive transition report.
The method according to any one of claims 1-4, wherein acquiring the first parameter information comprises:

Receive the first parameter information from the core network device, where the first parameter information is carried in the initial context establishment request message, or carried in the core network assistance information in the RRC-inactive state.
The method according to any one of claims 1-5, wherein the method further comprises:

Send the second parameter information to the terminal.
The method according to claim 6, wherein the second parameter information is sent to the terminal through an RRC release message or an RRC connection reconfiguration message.
The method according to any one of claims 1-7, wherein the method further comprises:

Send parameter information of the first eDRX to the second access network device, where the parameter information of the first eDRX includes the first parameter information or the second parameter information.
The method according to claim 8, wherein the parameter information of the first eDRX further comprises a DRX cycle of the access network device configured by the first access network device, and at least one of the terminal-specific DRX cycles. One.
The method according to claim 8 or 9, characterized in that,

Send the parameter information of the first eDRX to the access network device in the tracking area list of the first access network device, and the identifier of the second access network device is included in the first access network device's identifier. in the tracking area list.
The method according to claim 10, wherein the parameter information of the first eDRX is carried in a paging message of an access network device.
The method according to any one of claims 1-11, wherein the first access network device includes a centralized unit and a distribution unit, and the first access network device acquiring the first parameter information includes: The centralized unit acquires the first parameter information, and the method further includes:

The centralization unit sends parameter information of the second eDRX to the distribution unit, where the parameter information of the second eDRX includes the first parameter information or the second parameter information.
The method according to claim 12, wherein the parameter information of the second eDRX further comprises a DRX cycle of the access network device configured by the centralized unit, and a terminal-specific DRX cycle.
The method according to claim 12 or 13, wherein the parameter information of the second eDRX is carried in a paging message.
A communication method, applied to a terminal, characterized in that the method comprises:

acquiring first parameter information, where the first parameter information is used to indicate an extended discontinuous reception eDRX parameter, and the eDRX parameter is used by the terminal to receive a paging message in an eDRX mode;

Receive second parameter information from the first access network device, where the second parameter information is used to indicate the changed eDRX parameters, and the changed eDRX parameters are used after the terminal receives the second parameter information , using eDRX mode to receive paging messages.
The method of claim 15, wherein:

In the case of entering the radio resource control inactive RRC-inactive state, the second parameter information from the first access network device is received.
The method according to claim 15 or 16, wherein the second parameter information is carried in an RRC release message or an RRC connection reconfiguration message.
The method according to any one of claims 15-17, wherein acquiring the first parameter information comprises:

The first parameter information from the core network device is received, where the first parameter information is carried in a non-access stratum NAS message.
A communication method, applied to core network equipment, characterized in that the method comprises:

sending first parameter information to a first access network device, where the first parameter information is used to indicate an extended discontinuous reception eDRX parameter, and the eDRX parameter is used by the core network device to send a paging message in an eDRX mode;

Receive second parameter information from the first access network device, where the second parameter information is used to indicate a modified eDRX parameter, and the modified eDRX parameter is used for the core network device to receive the first After the second parameter information, the paging message is sent in the eDRX mode.
The method of claim 19, wherein:

When the terminal enters the radio resource control inactive RRC-inactive state, the terminal receives the second parameter information from the first access network device.
The method according to claim 19 or 20, wherein the second parameter information is carried in an RRC inactive transition report.
The method according to any one of claims 19-21, wherein the first parameter information is carried in an initial context establishment request message, or carried in core network assistance information in an RRC-inactive state.
The method according to any one of claims 19-22, wherein the method further comprises:

Send the second parameter information to the terminal.
The method according to any one of claims 19-23, wherein the method further comprises:

Send and send the first parameter information to the terminal, where the first parameter information is carried in a non-access stratum NAS message.
A communication method, applied to a second access network device, characterized in that the method includes:

Receive parameter information of the first eDRX from the first access network device, where the parameter information of the first eDRX includes first parameter information or second parameter information, and the first parameter information is used to indicate extended discontinuous reception eDRX parameter, the eDRX parameter is used by the first access network device to send a paging message to the terminal in the eDRX mode, the second parameter information is used to indicate the changed eDRX parameter, and the changed eDRX parameter is used for After the first access network device sends the second parameter information, it sends a paging message to the terminal in an eDRX mode;

Send a paging message to the terminal according to the parameter information of the first eDRX.
A first access network device, comprising:

a processor and a communication interface, the communication interface used for the first access network device to communicate, the processor is coupled to a memory, the memory is used to store a program or instruction, when the program or instruction is used by the When executed by the processor, the first access network device is caused to execute the method according to any one of claims 1-14.
A terminal, characterized in that it includes:

a processor and a communication interface, the communication interface is used for the terminal to communicate, the processor is coupled with a memory, the memory is used for storing programs or instructions, when the programs or instructions are executed by the processor, The terminal is caused to perform the method according to any one of claims 15-18.
A core network device, comprising:

a processor and a communication interface for the core network to communicate, the processor coupled to a memory for storing programs or instructions when the programs or instructions are executed by the processor , so that the core network device executes the method according to any one of claims 19-24.
A second core network device, comprising:

a processor and a communication interface for the core network to communicate, the processor coupled to a memory for storing programs or instructions when the programs or instructions are executed by the processor , so that the core network device executes the method according to claim 25 .
A computer-readable medium on which a computer program or instruction is stored, characterized in that, when the computer program or instruction is executed, the computer executes the method according to any one of claims 1 to 14, or as claimed in claim 1. The method of any one of claims 15 to 18, or the method of any one of claims 19 to 24, or the method of claim 25.