WO2022151604A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2022151604A1
WO2022151604A1 PCT/CN2021/086723 CN2021086723W WO2022151604A1 WO 2022151604 A1 WO2022151604 A1 WO 2022151604A1 CN 2021086723 W CN2021086723 W CN 2021086723W WO 2022151604 A1 WO2022151604 A1 WO 2022151604A1
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Prior art keywords
ptw
edrx cycle
paging
edrx
cycle
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PCT/CN2021/086723
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English (en)
French (fr)
Inventor
项弘禹
陈磊
李秉肇
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202180071553.4A priority Critical patent/CN116391404A/zh
Priority to EP21918803.4A priority patent/EP4247074A4/en
Publication of WO2022151604A1 publication Critical patent/WO2022151604A1/zh
Priority to US18/351,111 priority patent/US20230354266A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02Arrangements for increasing efficiency of notification or paging channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a communication method and device.
  • a terminal device in a radio resource control (RRC) idle (idle) state or an RRC inactive (inactive) state can follow a discontinuous reception (DRX) ) method, waking up periodically to monitor paging messages, the period of waking up periodically may be called a DRX period, and the position of waking up is called a paging occasion (PO).
  • the DRX cycle may include two parts: on duration and DRX opportunity (opportunity for DRX).
  • the terminal device During the "On Duration" time, at least one PO is included, during the "opportunity for DRX” time, the PO is not included, and the terminal device is in a dormant state to save power consumption.
  • the terminal device will perform blind detection at the beginning of the PO position. If the physical downlink control channel (PDCCH) is blindly detected, and the physical downlink shared channel (PDSCH) scheduled by the PDCCH includes the physical downlink shared channel (PDSCH) If you call your own paging message, it is determined that it needs to switch to the RRC connected state, otherwise the RRC idle state or the RRC inactive state is maintained.
  • PDCCH physical downlink control channel
  • PDSCH physical downlink shared channel
  • the terminal device can also use an extended discontinuous reception (extended discontinuous reception, eDRX) mechanism to periodically wake up to monitor the PO, and the period of periodically waking up can be called an eDRX cycle.
  • extended discontinuous reception extended discontinuous reception
  • eDRX extended discontinuous reception
  • the difference between DRX and eDRX is that the duration of the cycle is different.
  • the eDRX cycle is longer than the DRX cycle. Therefore, the use of the eDRX mechanism can increase the sleep duration of the terminal device and reduce the number of periodic wakeups, thereby further reducing power consumption.
  • multiple eDRX cycles may be configured for the terminal device, for example, a first eDRX cycle and a second eDRX cycle are configured.
  • the terminal device may monitor the paging message initiated by the core network (core network, CN) according to the first eDRX cycle, and monitor the paging message initiated by the radio access network (RAN) according to the second eDRX cycle.
  • core network core network, CN
  • RAN radio access network
  • the current problem is that when the terminal device detects a paging message according to multiple eDRX cycles, the power consumption of the terminal device will be increased, resulting in a reduction in the standby time of the terminal device.
  • the purpose of the embodiments of the present application is to provide a communication method and apparatus, so as to reduce the power consumption of the terminal device, thereby increasing the standby time of the terminal device.
  • the present application provides a communication method, which is suitable for a scenario in which a terminal device uses an eDRX mechanism to monitor PO.
  • the execution body of the method is a terminal device or a module in the terminal device, and the description is made by taking the terminal device as the execution body as an example.
  • the method includes: determining a first PH according to a first eDRX cycle, and determining a second PH according to a second eDRX cycle; wherein the first PH includes a first PTW, and the second PH includes a second PTW;
  • the PO is monitored in the PTW; wherein, if the first PH and the second PH are the same PH, the starting position of the first PTW in the first PH is determined according to the first eDRX cycle and the offset value.
  • the determining the first paging superframe PH according to the first eDRX cycle includes: determining the first PH according to the first eDRX cycle and a PH offset value, and the PH offset value is based on the first eDRX cycle. The cycle and the second eDRX cycle are determined.
  • the first PH is determined according to the first eDRX cycle and the PH offset value
  • the second PH is determined according to the second eDRX cycle, so that the first PH and the second PH may be the same PH. If the first PH is determined using the same method as the second PH, that is, the first PH is determined only according to the first eDRX cycle, a scenario where the first PH and the second PH are the same PH may not occur.
  • the terminal device can determine the starting position of the first PTW according to the first eDRX cycle and the offset value, so that the first PTW and the second PH are the same PH.
  • the second PTW overlaps in the time domain, which can reduce the total duration that the terminal device needs to wake up in the first PH, and reduce the power consumption of the terminal device.
  • the first PTW and the second PTW overlap in the time domain.
  • the offset value is the difference between the second parameter value and the first parameter value; wherein the second parameter value is determined according to the identification of the terminal device and the second eDRX cycle; the first The parameter value is determined according to the identity of the terminal device and the first eDRX cycle.
  • the starting position of the first PTW and the starting position of the second PTW can be made to overlap in the first PH.
  • the total duration that the terminal device needs to wake up in the first PH is the smallest, and the The total number of POs is the smallest, which significantly reduces the power consumption of the terminal equipment.
  • the second parameter value is used to determine the system frame number SFN corresponding to the start position of the second PTW; the first parameter value is used to determine the SFN corresponding to the start position of the third PTW, and the third The PTW is the PTW determined in the first PH according to the first eDRX cycle.
  • the offset value is greater than the first threshold value and less than the second threshold value; wherein the first threshold value is the difference between the SFN corresponding to the start position of the second PTW and the third PTW The difference between the SFNs corresponding to the end position, the second threshold is the difference between the SFN corresponding to the end position of the second PTW and the SFN corresponding to the start position of the third PTW; the third PTW is based on the first The eDRX cycle determines the PTW in the first PH.
  • the first eDRX cycle, the second eDRX cycle and/or the offset value come from a network device.
  • the starting position of the first PTW in the first PH is determined according to the first eDRX cycle.
  • the present application provides a communication method, which is suitable for a scenario in which a terminal device uses an eDRX mechanism to monitor PO.
  • the execution body of the method is a network device or a module in the network device, and the description is made by taking the network device as the execution body as an example.
  • the method includes: determining a first paging superframe PH according to a first extended discontinuous reception eDRX cycle, and determining a second PH according to a second eDRX cycle; wherein the first PH includes a first paging time window PTW, and the second PH Including the second PTW; when it is determined to page the terminal device, the paging message is scheduled in the first PTW and/or the second PTW; wherein, if the first PH and the second PH are the same PH, the first PTW is in the first PTW and/or the second PTW
  • the starting position in the PH is determined according to the first eDRX cycle and the offset value.
  • the determining the first paging superframe PH according to the first eDRX cycle includes: determining the first PH according to the first eDRX cycle and a PH offset value, and the PH offset value is based on the first eDRX cycle. The cycle and the second eDRX cycle are determined.
  • the first PTW overlaps with the second PTW in the time domain.
  • the offset value is the difference between the second parameter value and the first parameter value; wherein the second parameter value is determined according to the identification of the terminal device and the second eDRX cycle; the first The parameter value is determined according to the identity of the terminal device and the first eDRX cycle.
  • the second parameter value is used to determine the system frame number SFN corresponding to the start position of the second PTW; the first parameter value is used to determine the SFN corresponding to the start position of the third PTW, and the third The PTW is the PTW determined in the first PH according to the first eDRX cycle.
  • the offset value is greater than the first threshold value and less than the second threshold value; wherein the first threshold value is the difference between the SFN corresponding to the start position of the second PTW and the third PTW The difference between the SFNs corresponding to the end position, the second threshold is the difference between the SFN corresponding to the end position of the second PTW and the SFN corresponding to the start position of the third PTW; the third PTW is based on the first The eDRX cycle determines the PTW in the first PH.
  • the first eDRX cycle, the second eDRX cycle and/or the offset value come from a network device.
  • the starting position of the first PTW in the first PH is determined according to the first eDRX cycle.
  • the present application provides a communication method, which is suitable for a scenario in which a terminal device uses an eDRX mechanism to monitor PO.
  • the execution body of the method is a terminal device or a module in the terminal device, and the description is made by taking the terminal device as the execution body as an example.
  • the method includes: determining a first paging superframe PH according to a first eDRX cycle, and determining a second PH according to a second eDRX cycle; wherein the first PH includes a first PTW, and the second PH includes a second PTW; , and monitor PO in the second PTW; wherein, if the first PH and the second PH are the same PH, the starting position of the first PTW and the starting position of the second PTW are determined according to the first eDRX cycle value, or the first The starting position of one PTW and the starting position of the second PTW are both determined according to the second eDRX cycle value.
  • the starting position of the first PTW and the starting position of the second PTW can be made to overlap in the first PH.
  • the total duration that the terminal device needs to wake up in the first PH is the smallest, and the The total number of POs is the smallest, which significantly reduces the power consumption of the terminal equipment.
  • the determining the first paging superframe PH according to the first eDRX cycle includes: determining the first PH according to the first eDRX cycle and a PH offset value, and the PH offset value is based on the first eDRX cycle. The cycle and the second eDRX cycle are determined.
  • the starting position of the first PTW is determined according to the first eDRX cycle, and the starting position of the second PTW is determined according to the second eDRX cycle.
  • the method further includes: the first eDRX cycle, the second eDRX cycle and/or the offset value are from a network device.
  • the present application provides a communication method, which is suitable for a scenario in which a terminal device uses an eDRX mechanism to monitor PO.
  • the execution body of the method is a network device or a module in the network device, and the description is made by taking the network device as the execution body as an example.
  • the method includes: determining a first paging superframe PH according to a first extended discontinuous reception eDRX cycle, and determining a second PH according to a second eDRX cycle; wherein the first PH includes a first paging time window PTW, and the second PH Including the second PTW; when determining to page the terminal device, schedule the paging message within the first paging time window PTW and/or the second PTW; wherein, if the first PH and the second PH are the same PH, the first The starting position of the PTW and the starting position of the second PTW are both determined according to the first eDRX period value, or the starting position of the first PTW and the starting position of the second PTW are both determined according to the second eDRX period value.
  • the determining the first paging superframe PH according to the first eDRX cycle includes: determining the first PH according to the first eDRX cycle and a PH offset value, and the PH offset value is based on the first eDRX cycle. The cycle and the second eDRX cycle are determined.
  • the starting position of the first PTW is determined according to the first eDRX cycle, and the starting position of the second PTW is determined according to the second eDRX cycle.
  • the first eDRX cycle, the second eDRX cycle and/or the offset value come from a network device.
  • the present application provides a communication method, which is suitable for a scenario in which a terminal device uses an eDRX mechanism to monitor PO.
  • the execution body of the method is a terminal device or a module in the terminal device, and the description is made by taking the terminal device as the execution body as an example.
  • the method includes: determining a first paging frame PF according to a paging frame offset value; the first PF and the second PF are the same PF; the first PF is the PF located in the RAN paging cycle of the radio access network, and the second PF is the same PF as the second PF.
  • the PF is any PF in the paging time window PTW in the second eDRX cycle; PO is monitored in the first PF.
  • the PO in the first PF can be made to overlap with the PO in the second PF.
  • the total number of POs that the terminal device needs to monitor is reduced, the power consumption of the terminal device can be reduced, and the monitoring efficiency can be improved.
  • the paging frame offset value is the difference between the frame number of the second PF and the frame number of the third PF; the third PF is the PF determined according to the RAN paging cycle.
  • a paging frame offset value is received from a network device.
  • the present application provides a communication method, which is suitable for a scenario in which a terminal device uses an eDRX mechanism to monitor PO.
  • the execution body of the method is a network device or a module in the network device, and the description is made by taking the network device as the execution body as an example.
  • the method includes: determining a first paging frame PF according to a paging frame offset value; the first PF and the second PF are the same PF; the first PF is the PF located in the RAN paging cycle of the radio access network, and the second PF is the same PF as the second PF.
  • the PF is any PF in the paging time window PTW in the second eDRX cycle; when it is determined to page the terminal device, the paging message is scheduled in the first PF.
  • the paging frame offset value is the difference between the frame number of the second PF and the frame number of the third PF; the third PF is the PF determined according to the RAN paging cycle.
  • the method further includes: indicating the paging frame offset value to the terminal device.
  • the present application further provides a communication device, the communication device having any method provided in the first aspect or the third aspect or the fifth aspect.
  • the communication device may be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication apparatus includes: a processor, and the processor is configured to support the communication apparatus to perform the corresponding functions of the terminal device in the above-described method.
  • the communication device may also include a memory, which may be coupled to the processor, which holds program instructions and data necessary for the communication device.
  • the communication apparatus further includes an interface circuit, and the interface circuit is used to support communication between the communication apparatus and equipment such as network equipment.
  • the communication device includes corresponding functional modules, which are respectively used to implement the steps in the above method.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the communication apparatus includes a processing unit and a communication unit, and these units can perform the corresponding functions in the foregoing method examples.
  • these units can perform the corresponding functions in the foregoing method examples.
  • the present application further provides a communication device, the communication device having any method provided in the second aspect or the fourth aspect or the sixth aspect.
  • the communication device may be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication apparatus includes: a processor configured to support the communication apparatus to perform the corresponding functions of the network device in the method shown above.
  • the communication device may also include a memory, which may be coupled to the processor, which holds program instructions and data necessary for the communication device.
  • the communication apparatus further includes an interface circuit, and the interface circuit is used to support communication between the communication apparatus and equipment such as terminal equipment.
  • the communication device includes corresponding functional modules, which are respectively used to implement the steps in the above method.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the communication apparatus includes a processing unit and a communication unit, and these units can perform the corresponding functions in the foregoing method examples.
  • these units can perform the corresponding functions in the foregoing method examples.
  • a communication device comprising a processor and an interface circuit
  • the interface circuit is configured to receive signals from other communication devices other than the communication device and transmit to the processor or send signals from the processor
  • the processor is used to implement any one of the first aspect or the third aspect or the fifth aspect, and any possible implementation of any aspect through a logic circuit or executing code instructions method in method.
  • a tenth aspect provides a communication device, comprising a processor and an interface circuit, the interface circuit is configured to receive signals from other communication devices other than the communication device and transmit to the processor or send signals from the processor To other communication devices other than the communication device, the processor is used to implement any one of the second aspect or the fourth aspect or the sixth aspect, and any possible implementation of any aspect through a logic circuit or executing code instructions A function module for a method in a way.
  • a computer-readable storage medium is provided, and a computer program or instruction is stored in the computer-readable storage medium.
  • the computer program or instruction is executed by a processor, the aforementioned first to sixth aspects are realized A method in any aspect, and any possible implementation of any aspect.
  • a twelfth aspect provides a computer program product storing instructions, when the instructions are executed by a processor, any one of the foregoing first to sixth aspects, and any possible implementation manner of any one aspect is implemented method in .
  • a thirteenth aspect provides a chip system, the chip system includes a processor, and may further include a memory, for implementing any one of the foregoing first to sixth aspects, and any possible implementation manner of any aspect. Methods.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • a fourteenth aspect provides a communication system, where the system includes the apparatus (eg, terminal device) described in the ninth aspect and the apparatus (eg, network device) described in the tenth aspect.
  • Fig. 1 is a kind of schematic diagram of DRX paging
  • FIG. 2 is a schematic diagram of a network architecture applicable to the present application
  • FIG. 3 is a schematic diagram of eDRX paging according to an embodiment of the present application.
  • FIG. 4(a) is a schematic diagram of eDRX paging provided by an embodiment of the present application.
  • FIG. 4(b) is a schematic diagram of eDRX paging according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a positional relationship between a first PTW and a second PTW according to an embodiment of the present application
  • FIG. 7 is a schematic diagram of a positional relationship between a first PTW and a second PTW according to an embodiment of the present application
  • FIG. 8 is a schematic diagram of a positional relationship between a first PTW and a second PTW according to an embodiment of the present application
  • FIG. 9 is a schematic diagram of a positional relationship between a first PTW and a second PTW according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a positional relationship between a first PTW and a second PTW according to an embodiment of the present application
  • FIG. 11 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 12 is a schematic diagram of monitoring provided by an embodiment of the present application.
  • FIG. 13 is a schematic diagram of monitoring provided by an embodiment of the present application.
  • FIG. 14 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 17 is a schematic diagram of a positional relationship between a first PTW and a second PTW according to an embodiment of the present application.
  • FIG. 18 is a schematic diagram of a positional relationship between a first PTW and a second PTW according to an embodiment of the present application.
  • the terminal device may be a device with a wireless transceiver function or a chip that can be installed in any device, and may also be referred to as user equipment (user equipment, UE), an access terminal, a subscriber unit, or a subscriber station. , mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user equipment.
  • the terminal device in this embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, an industrial Wireless terminals in industrial control, wireless terminals in self-driving, etc.
  • the network equipment may be a next generation base station (next Generation node B, gNB) in an NR system, an evolved base station (evolutional node B, eNB) in an LTE system, or the like.
  • next Generation node B gNB
  • evolutional node B evolutional node B, eNB
  • FIG. 2 is a schematic diagram of a network architecture applicable to the present application.
  • a terminal device can access a network device to obtain services from an external network (such as a data network (DN)) through the network device, or communicate with other devices through the network device, such as with other terminals device communication.
  • an external network such as a data network (DN)
  • DN data network
  • the terminal device may be configured to be in an RRC idle state, an RRC inactive state, or an RRC active state.
  • the terminal device in the RRC idle state needs to monitor the paging message from the CN; the terminal device in the RRC inactive state needs to monitor the paging message from the CN and the paging message from the RAN.
  • the paging message from the RAN may be referred to as the RAN paging message for short.
  • RNA paging message sent to the terminal equipment;
  • the paging message from CN can be referred to as CN paging message, when the core network equipment needs to page the terminal equipment, it is sent to the terminal equipment through the access network equipment (such as the base station) paging message.
  • the process for the terminal device to monitor the paging message is as follows: the terminal device monitors the PDCCH at the PO, and determines whether there is a paging message that the terminal device needs to receive according to the monitored PDCCH.
  • the monitored PDCCH includes downlink control information (DCI) scrambled with paging radio network temporary identity (P-RNTI)
  • DCI downlink control information
  • P-RNTI paging radio network temporary identity
  • the terminal device switches to the RRC connected state, otherwise it keeps the RRC idle state or the RRC inactive state.
  • the parameters used to monitor the CN paging message may include information such as the eDRX cycle, the window length of the paging time window (paging time window, PTW).
  • the parameters used for monitoring the RAN paging messages may include information such as the eDRX cycle and the window length of the PTW; or the parameters used for monitoring the RAN paging messages may include the RAN paging cycle.
  • the eDRX cycle corresponding to the CN paging message is represented by T_cn
  • the eDRX cycle corresponding to the RAN paging message is represented by T_ran.
  • the PTW is configured therein. As shown in FIG. 3 , in the eDRX cycle T_cn corresponding to the CN paging message, outside the PTW, the terminal device enters a dormant state; in the PTW, the terminal device monitors the CN paging message according to the cycle T.
  • the terminal equipment For the RAN paging message, when the PTW is configured, as shown in Figure 4(a), outside the PTW, the terminal equipment enters a dormant state; within the PTW, the terminal equipment monitors the paging message according to the period T. When the PTW is not configured, as shown in Figure 4(b), the terminal device monitors the RAN paging message according to the RAN paging cycle.
  • T in FIG. 3 and FIG. 4(a) is the period of the RAN paging message (hereinafter referred to as the RAN paging period), the specific (specific) paging period of the terminal device (if configured) and the default paging period The minimum value in the cycle.
  • the default paging cycle is broadcast by the network device. If the RAN paging cycle and the specific paging cycle are not configured, the default paging cycle is used to monitor paging messages.
  • the terminal device when there is a PTW, in the process of monitoring the paging message, the terminal device needs to determine the paging hyperframe (paging hyperframe, PH) including the PTW, and the system frame number of the system frame where the starting position of the PTW is located. (system frame number, SFN).
  • the terminal device may locate a paging frame (PF) including the PO within the PTW, thereby monitoring at the PO within the PF.
  • PH the determination of PH can be completed by the following formula, and all super frames corresponding to the hyper-system frame number (H-SFN) that conform to the formula can be used as PH:
  • H-SFN mod T eDRX,H (UE_ID mod T eDRX,H )...(1)
  • T eDRX,H is the eDRX period
  • UE_ID is determined according to the identification of the terminal device
  • mod represents a modulo operation
  • the system frame number SFN of the system frame where the starting position of the PTW is located satisfies the following formula:
  • floor() represents the round-down operation.
  • the SFN of PF satisfies the following formula:
  • T is the minimum value among the RAN paging cycle, the specific paging cycle of the terminal device and the default paging cycle.
  • i_s floor(UE_ID/N)mod Ns...(4)
  • PF_offset is the offset used to determine the PF, which is carried by the system information block 1 (system information block 1, SIB1) sent by the network device, N is the total number of PFs included in the PTW, and Ns represents the PO included in a PF. number of.
  • the present application provides a method, which can reduce the number of times the terminal device needs to monitor the paging message, thereby reducing the power consumption of the terminal device.
  • the interaction between a network device and a terminal device is used as an example for illustration.
  • the operations performed by the network device can also be performed by a chip or module inside the network device, and the operation performed by the terminal device can also be performed by a chip or module inside the terminal device. implement.
  • FIG. 5 a schematic flowchart of a communication method provided by an embodiment of the present application is shown. Referring to Figure 5, the method includes:
  • S501 The network device determines the first PH according to the first eDRX cycle, and determines the second PH according to the second eDRX cycle.
  • S502 The terminal device determines the first PH according to the first eDRX cycle, and determines the second PH according to the second eDRX cycle.
  • the first PH includes the first PTW
  • the second PH includes the second PTW
  • the terminal device may be in an RRC inactive state, and may also support monitoring paging messages using two eDRX cycles.
  • the execution order of S501 and S502 is not limited, and may be executed sequentially or simultaneously.
  • the first PTW is configured in the first eDRX cycle
  • the second PTW is configured in the second eDRX cycle.
  • the network device may configure information such as the first eDRX cycle and the second eDRX cycle to the terminal device.
  • the first eDRX cycle is used to receive RAN paging messages
  • the second eDRX cycle is used to receive CN paging messages.
  • the network device may send first configuration information to the terminal device, where the first configuration information includes the first eDRX cycle, and the first configuration information may also include information such as the window length of the first PTW in the first eDRX cycle.
  • the first configuration information may be carried by RRC signaling, for example, the first configuration information may be carried by an RRC connection release (RRC connection release) message or an RRC release (release) message.
  • the first configuration information may further include an offset value, and the offset value may be used to determine the starting position of the first PTW.
  • the offset value may be determined by the terminal device, or may also be determined in other ways, which is not limited in this embodiment of the present application.
  • the network device may also send second configuration information to the terminal device, where the second configuration information includes the second eDRX cycle, and the second configuration information may further include information such as the window length of the second PTW in the second eDRX cycle.
  • the second configuration information may be sent to the terminal device in an attach (attach) process or a tracking area update (tracking area update, TAU) process.
  • the second configuration information may be carried by an attach request (attach request) message in the attach process; or the second configuration information may be carried by a TAU request (TAU request) message in the TAU process.
  • the first eDRX cycle and the second eDRX cycle are in units of super system frames, the first eDRX cycle includes at least one super system frame, and the second eDRX cycle includes at least one super system frame.
  • the first PH and the second PH can be determined by the foregoing formula (1).
  • the super system frame number H-SFN 1 corresponding to the first PH can satisfy the following form:
  • H-SFN 1 mod T 1 eDRX,H (UE_ID mod T 1 eDRX,H )...(5-1)
  • T 1 eDRX, H represents the first eDRX cycle
  • UE_ID is determined according to the identity of the terminal equipment, for example, the identity of the terminal equipment is an international mobile subscriber identity (international mobile subscriber identity, IMSI), UE_ID can be equal to IMSI mod 1024, mod Indicates the modulo operation.
  • IMSI international mobile subscriber identity
  • the super system frame number H-SFN 2 corresponding to the second PH may satisfy the following form:
  • H-SFN 2 mod T 2 eDRX,H (UE_ID mod T 2 eDRX,H )...(6)
  • T 2 eDRX,H represents the second eDRX cycle.
  • the super system frame number corresponding to the first PH and the super system frame number corresponding to the second PH may be the same, that is, every fixed number of super system frames, the first PTW and the second PTW are located in the same PH.
  • the value of the fixed number may be the least common multiple of the first eDRX cycle and the second eDRX cycle.
  • the value of UE_ID is 5 super system frames
  • the value of the second eDRX cycle is 3 super system frames.
  • the values of the super system frame number H-SFN 1 corresponding to the first PH are 1, 3, 5, 7, 9, 11, etc.
  • Scenario 2 The super system frame number corresponding to the first PH and the super system frame number corresponding to the second PH are different.
  • a PH offset value may be additionally introduced to determine the first PH.
  • the first PH may be determined according to the PH offset value, the first eDRX cycle and the identity of the terminal device.
  • the formula used to determine the first PH may satisfy the following form:
  • offset PH is the PH offset value, and the meanings of other parameters are the same as those of formula (5-1), which will not be repeated here.
  • the function of the PH offset value is to compensate the interval between the first PH and the second PH, so that the first PH and the second PH determined according to the PH offset value, every fixed number of super system frames. , corresponding to the same super system frame number, so that the first PTW in the first PH and the second PTW in the second PH are located in the same PH.
  • the value of the fixed number may be the least common multiple of the first eDRX cycle and the second eDRX cycle.
  • the value of the first eDRX cycle is 20 super system frames
  • the value of the second eDRX cycle is 30 super system frames.
  • the values of the super system frame number H-SFN 1 corresponding to the first PH are 30, 50, 70, 90, 110, etc.
  • the value of the corresponding super system frame number H-SFN 2 of the second PH is 21. , 51, 81, 111, 141, etc. It can be seen from the above process that the first PTW and the second PTW cannot always be located in the same PH.
  • a PH offset value of 1 can be used offset PH to determine the first PH.
  • the first PTW and the second PTW are located in the same PH.
  • the super system frame numbers are 51 and 111
  • the first PTW and the second PTW are located in the same PH.
  • the network side or the terminal device side can determine whether the super system frame number corresponding to the first PH and the super system frame number corresponding to the second PH may be the same according to the first eDRX cycle, the second eDRX cycle and the UE_ID, If it may be the same, it can be considered to correspond to scenario 1, that is, it is not necessary to use the PH offset value to determine the first PH; if it may be different, it can be considered to correspond to scenario 2, that is, the PH offset value needs to be used to determine the first PH.
  • the PH offset value can also be used Determine the first pH.
  • the determination of the PH offset value offset PH can be achieved in the following ways:
  • Mode 1 CN determines the second eDRX cycle (that is, the IDLE eDRX cycle), and when the RAN determines the first eDRX cycle (that is, the INACTIVE eDRX cycle), the CN determines the PH offset value. At this time, the RAN feeds back the first eDRX cycle and informs the CN, The CN obtains the PH offset value offset PH based on the first eDRX cycle and the second eDRX cycle.
  • CN determines the second eDRX cycle (ie IDLE eDRX cycle), and RAN determines the PH offset value when RAN determines the first eDRX cycle (ie INACTIVE eDRX cycle).
  • CN informs RAN of the second eDRX cycle
  • the RAN is informed through Core Network Assistance Information for RRC INACTIVE, and the RAN obtains the PH offset value offset PH based on the first eDRX cycle and the second eDRX cycle.
  • CN determines the second eDRX cycle (ie IDLE eDRX cycle), and the first eDRX cycle (ie INACTIVE eDRX cycle), the CN determines the PH offset value, at this time CN is based on the first eDRX cycle and the second eDRX cycle Calculate the PH offset value offset PH .
  • the PH offset value offset PH may be configured by the network side, that is, the network side informs the terminal equipment through RRC signaling or NAS signaling after determining the PH offset value offset PH .
  • the terminal device may also determine the PH offset value offset PH based on the first eDRX cycle and the second eDRX cycle, and reference may be made to the above description for details.
  • the above-mentioned PH offset value offset PH is determined according to the first eDRX cycle and the second eDRX cycle.
  • the first eDRX cycle and the second eDRX cycle can be substituted into the super system frame number H-SFN corresponding to the calculated PH.
  • the UE_ID in formulas (5-1) and (6) may have the same value.
  • UE_ID in formula (5-1) can be replaced by UE_ID1
  • UE_ID in formula (6) can be replaced by UE_ID2.
  • Both UE_ID1 and UE_ID2 may refer to the identifier of the terminal device, for example, UE_ID1 is the globally unique identifier of the terminal device, UE_ID1 is the temporary identifier of the terminal device, etc., which are determined according to the actual situation.
  • the PH offset value may be the difference between the first eDRX cycle and the second eDRX cycle.
  • the above-mentioned PH offset value offset PH may be 0 through calculation.
  • the network device When determining to page the terminal device, the network device schedules the paging message in the first PTW and/or the second PTW.
  • How the network device specifically determines whether the terminal device needs to be paged is not limited in this embodiment of the present application. For example, in one case, when the network device receives data or signaling that needs to be sent to the terminal device, it determines to page the terminal device; in another case, when the network device receives the paging message from the core network side, it determines to page the terminal device. call the terminal equipment.
  • the network device receives data or signaling that needs to be sent to the terminal device, it determines to page the terminal device; in another case, when the network device receives the paging message from the core network side, it determines to page the terminal device. call the terminal equipment.
  • the network device specifically schedules the paging message is not limited in this embodiment of the present application.
  • the network device may send the DCI scrambled with P-RNTI in the PDCCH in the PO in the first PTW, and the PDSCH scheduled by the DCI includes the paging terminal The device's paging message.
  • the network device sends the DCI, it also needs to send a corresponding paging message in the PDSCH scheduled by the DCI, and the specific process will not be repeated.
  • S504 The terminal device monitors the PO in the first PTW and the second PTW.
  • both the first PTW and the second PTW include at least one PO, and one PO includes one or more PDCCH monitoring occasions.
  • the terminal device monitors the PDCCH monitoring occasions in the PO. If the PDCCH monitored in the PDCCH monitoring occasions, If the DCI scrambled with the P-RNTI is included, the paging message is received in the PDSCH scheduled by the DCI.
  • monitoring a PO may sometimes also refer to monitoring a paging message, and the meanings of the two may be the same.
  • the terminal device may first determine the starting position of the first PTW and the starting position of the second PTW.
  • the starting position of the first PTW and the starting position of the second PTW may be determined in various ways, which will be described separately below.
  • the first PTW and the second PTW are located in the same PH, and the starting position of the first PTW in the first PH is determined according to the first eDRX cycle and the offset value ;
  • the starting position of the second PTW in the first PH (here the first PH and the second PH are the same PH) is determined according to the second eDRX cycle.
  • the system frame number SFN 1 corresponding to the starting position of the first PTW in the first PH can satisfy the following formula:
  • T 1 eDRX,H represents the first eDRX cycle
  • UE_ID is determined according to the identification of the terminal device
  • offset represents an offset value
  • SFN 1 can satisfy the following formula:
  • the SFN corresponding to the starting position of the second PTW in the first PH can be determined according to the foregoing formula (2), and details are not described herein again.
  • the starting position of the first PTW in the first PH is determined according to the first eDRX cycle
  • the starting position of the second PTW in the second PH is determined according to the second eDRX cycle .
  • the SFN corresponding to the starting position of the first PTW in the first PH and the SFN corresponding to the starting position of the second PTW in the second PH can be determined according to formula (2), which will not be repeated here.
  • the function of the offset value is to make the first PTW and the second PTW overlap in the time domain, so that the part PO in the first PTW overlaps with the part PO in the second PTW. Since the first PTW and the second PTW overlap in the time domain, the total duration of wake-up of the terminal device can be reduced, and the power consumption of the terminal device can be reduced. It should be noted that the terminal device is not always in the wake-up state in the PTW, but is in the wake-up state at the PO position, and is in the sleep state outside the PO position.
  • the two overlapping POs only need to be monitored once, thereby reducing the total number of POs that the terminal device needs to monitor, reducing the power consumption of the terminal device and improving Efficiency of listening for paging messages.
  • the offset value can be is the difference between the second parameter value and the first parameter value.
  • the second parameter value can be used to determine the SFN corresponding to the starting position of the second PTW
  • the first parameter value can be used to determine the SFN corresponding to the starting position of the third PTW
  • the third PTW is based on the first eDRX cycle at PTW determined in the first PH.
  • the third PTW refers to the PTW determined according to the method in the prior art (for example, according to formula (2)) when the first PTW and the second PTW are located in the same PH. Previous PTW.
  • the second parameter value may be determined according to the identification of the terminal device and the second eDRX cycle;
  • the first parameter value may be determined according to the identification of the terminal device and the first eDRX cycle.
  • the offset value can satisfy the following formula:
  • T 1 eDRX,H represents the first eDRX cycle
  • T 2 eDRX,H represents the second eDRX cycle
  • the window length of the first PTW is smaller than the window length of the second PTW.
  • the corresponding SFN 512 of the starting position of the first PTW determined according to the formula (7) and the formula (9), that is, the starting position of the first PTW and the starting position of the second PTW overlap.
  • the duration that the terminal device needs to wake up is the sum of the window length of the first PTW and the window length of the second PTW; the offset value is used to offset the first PTW.
  • the duration that the terminal device needs to wake up is the window length of the second PTW, which is less than the sum of the window length of the first PTW and the window length of the second PTW, thereby reducing the power consumption of the terminal device.
  • the terminal device can determine the PF including the PO according to formula (3), and determine the position of the PO in the PF according to formula (4), so as to monitor at the beginning of the PO position.
  • a PF includes a PO
  • the interval between POs is T. If the first PTW is not offset, the number of POs that the terminal device needs to monitor is X1+X2; X1 is the number of POs included in the first PTW, and X2 is the number of POs included in the second PTW.
  • the listening periods in the first PTW and the second PTW are both T, so the first The positions of the multiple POs included in the PTW coincide with the positions of the multiple POs included in the second PTW, so the total number of POs that the terminal device needs to monitor can be reduced, thereby further reducing the power consumption of the terminal device.
  • the number of POs that the terminal device needs to monitor is X2, which is much smaller than X1+X2.
  • the starting position of the first PTW and the starting position of the second PTW are overlapped as an example for description.
  • the PTWs overlap in the time domain in other ways, for example, the center position of the first PTW and the center position of the second PTW overlap, the end position of the first PTW and the end position of the second PTW overlap, etc., which will not be described one by one here.
  • the range of the offset value can be greater than the first threshold and less than the second Threshold value.
  • the value range of the offset value offset can satisfy the following forms:
  • SFN 2 -SFN END3 represent the first threshold value
  • SFN END2 -SFN 3 represent the second threshold value
  • SFN 3 represents the SFN corresponding to the start position of the third PTW
  • SFN 2 represents the start position of the second PTW
  • the corresponding SFN, SFN END3 represents the SFN corresponding to the end position of the third PTW
  • SFN END2 represents the SFN corresponding to the end position of the second PTW.
  • the value of the offset value can be 512; The end positions of the two PTWs overlap, so the value of the offset value may be 612. Other situations can be deduced by analogy, and details are not repeated here.
  • the difference between the second implementation and the first implementation is that the offset value does not need to be used to make the first PTW and the second PTW overlap in the time domain, and there is no need to increase signaling overhead in implementation, which will be described in detail below.
  • first PH and the second PH are the same PH
  • first PTW and the second PTW are located in the same PH
  • the starting position of the first PTW and the starting position of the second PTW are both based on the first eDRX cycle value determined, or both the start position of the first PTW and the start position of the second PTW are determined according to the second eDRX cycle value.
  • the SFN corresponding to the starting position of the first PTW and the SFN corresponding to the starting position of the second PTW may satisfy the following formula:
  • T eDRX,H is the first eDRX cycle or the second eDRX cycle.
  • the SFN corresponding to the starting position of the first PTW is equal to 0, and the SFN corresponding to the starting position of the second PTW is both equal to 512, and the two do not overlap.
  • T eDRX, H when the value of T eDRX, H is T 1 eDRX,H , the SFN corresponding to the starting position of the first PTW and the SFN corresponding to the starting position of the second PTW are both equal to 0; or T When the value of eDRX,H is T 2 eDRX,H , the SFN corresponding to the starting position of the first PTW and the SFN corresponding to the starting position of the second PTW are both equal to 512.
  • the starting position of the first PTW and the starting position of the second PTW must overlap, which can reduce the In the case of signaling overhead, the wake-up time of the terminal device can be reduced, the total number of POs monitored by the terminal device can be reduced, and the power consumption of the terminal device can be reduced.
  • the starting position of the first PTW in the first PH is determined according to the first eDRX cycle, and the second PTW is in the second PH.
  • the starting position of the PTW is determined according to the second eDRX cycle.
  • the SFN corresponding to the starting position of the first PTW in the first PH and the starting position of the second PTW in the second PH can be determined according to formula (2). The SFN corresponding to the starting position will not be repeated here.
  • the PTW when monitoring the RAN paging message, the PTW may not be configured. At this time, the terminal device monitors the paging message with the RAN paging cycle according to the scheme shown in FIG. 4(b), which will be described in detail below.
  • FIG. 11 a schematic flowchart of a communication method provided by an embodiment of the present application is shown.
  • the RAN paging cycle is used to receive the RAN paging message
  • the second eDRX cycle is used to receive the CN paging message.
  • the terminal device monitors the paging message according to the RAN paging cycle.
  • the terminal device enters a sleep state outside the second PTW in the second eDRX cycle; in the second PTW, the terminal device monitors the paging message according to the cycle T.
  • the method includes:
  • S1101 The network device determines the first PF according to the paging frame offset value.
  • S1102 The terminal device determines the first PF according to the paging frame offset value.
  • the first PF and the second PF are the same PF; the first PF is the PF in the RAN paging cycle, and the second PF is any PF in the PTW in the second eDRX cycle.
  • the execution order of S1101 and S1102 is not limited, and may be executed sequentially or simultaneously.
  • the terminal device may be in an RRC inactive state.
  • the network device may configure the terminal device with information such as the RAN paging cycle, the second eDRX cycle, and the like.
  • the network device may send first configuration information to the terminal device, where the first configuration information includes information such as a RAN paging cycle.
  • the first configuration information may be carried in an RRC connection release message or an RRC release message.
  • the first configuration information may further include a paging frame offset value.
  • the paging frame offset value may be determined by the terminal device, or may also be determined in other ways, which are not limited in the embodiments of the present application.
  • the network device may also send second configuration information to the terminal device, where the second configuration information includes the second eDRX cycle.
  • the second configuration information may also indicate other information, such as indicating information such as the window length of the second PTW in the second eDRX cycle.
  • the second configuration information may be carried by the attach request message in the attach process; or the second configuration information may be carried by the TAU request message in the TAU process.
  • T is the minimum value among the RAN paging cycle, the terminal equipment specific paging cycle and the default paging cycle.
  • the number of POs included in one PF in the RAN paging cycle is equal to the number of POs included in one PF in the second eDRX cycle, and both are Ns, where Ns is an integer greater than 0.
  • the function of the paging frame offset value is to compensate for the interval between the PF in the RAN paging cycle and the PF in the second eDRX cycle, so that the PF in the RAN paging cycle is the same as the second eDRX cycle.
  • the PFs in the cycle overlap, thereby reducing the total number of POs that the terminal device needs to monitor in the PF, reducing the power consumption of the terminal device, and improving the efficiency of monitoring paging messages.
  • the paging frame offset value is the difference between the frame number of the second PF and the frame number of the third PF; the third PF is the PF determined according to the first eDRX cycle.
  • the third PF may refer to the PF before the location offset of the first PF is performed according to the paging frame offset value.
  • the paging frame offset value PF_offset1 can satisfy the following formula:
  • SFN 2 represents the system frame number of the second PF
  • SFN 3 represents the system frame number of the third PF.
  • the system frame number of the second PF can satisfy the following forms:
  • the system frame number of the third PF can satisfy the following forms:
  • PF_offset is the offset used to determine the PF
  • T_rp represents the RAN paging cycle
  • N1 represents the total number of PFs included in the second eDRX cycle
  • N2 represents the total number of PFs included in the cycle T
  • UE_ID is based on the terminal equipment identified.
  • the network device may send SIB1 to the terminal device, and the SIB1 includes parameters such as PF_offset, N1, and N2.
  • system frame number SFN 1 of the first PF can satisfy the following form:
  • PF_offset1 represents the paging frame offset value.
  • the interval between the third PF and the second PF may be used as the paging offset value, so that the third PF is offset so that the first PF (the offset The third PF) coincides with the second PF, thereby reducing the total number of POs that the terminal device needs to monitor in the PF, and reducing the power consumption of the terminal device.
  • S1104 The terminal device monitors the PO in the first PF.
  • the first PF in the RAN paging cycle and the second PF in the second eDRX cycle are overlapped by the paging frame offset value, thereby reducing the number of PFs that the terminal device needs to monitor, and reducing the number of PFs that need to be monitored.
  • the total number of POs can reduce the power consumption of terminal equipment and improve the efficiency of monitoring paging messages.
  • NB-IOT non-narrowband internet of things
  • the terminal device can run in eDRX mode.
  • the minimum value of the eDRX cycle is 5.12 seconds (second, s).
  • the terminal device may not be able to receive the emergency broadcast service message within a specified time (for example, 4s). Therefore, the present application can provide a method to solve this problem.
  • an eDRX period less than 5.12s is introduced, and the value of the eDRX period less than 5.12s may be 2.56s, etc., which is not limited in the embodiment of the present application.
  • the method includes:
  • S1401 The network device sends cycle indication information.
  • the cycle indication information indicates an eDRX cycle configuration supported by the network device, where the eDRX cycle configuration supported by the network device at least includes an eDRX cycle shorter than 5.12s, for example, supports an eDRX cycle of 2.56s.
  • the network device can send the period indication information by broadcast or unicast.
  • S1402 The terminal device sends a request message to the network device, where the request message is used for requesting to configure an eDRX cycle shorter than 5.12s.
  • the request message can be non-access stratum (NAS) signaling.
  • NAS non-access stratum
  • the terminal device When the terminal device supports eDRX and requests to use eDRX, it can request to configure the eDRX cycle to be less than 5.12s through NAS signaling, such as requesting The period is configured as 2.56s.
  • the NAS signaling may be a registration request (REGISTRATION REQUEST) message, and the requested eDRX period is added and set to 2.56s in the registration request message.
  • REGISTRATION REQUEST REGISTRATION REQUEST
  • the terminal device requests to configure the minimum eDRX cycle of 5.12s.
  • the terminal device can achieve a longer sleep power saving compared to the DRX cycle, and can support the reception of emergency broadcast services at the same time.
  • the network device or the terminal device may include a hardware structure and/or a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module . Whether one of the above functions is performed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • each functional module in each embodiment of the present application may be integrated into one processor, or may exist physically alone, or two or more modules may be integrated into one 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.
  • an embodiment of the present application further provides an apparatus 1500 for implementing the functions of the network device or the terminal device in the above method.
  • the apparatus may be a software module or a system-on-chip.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the apparatus 1500 may include: a processing unit 1501 and a communication unit 1502 .
  • the communication unit may also be referred to as a transceiver unit, and may include a sending unit and/or a receiving unit, which are respectively configured to perform the sending and receiving steps of the network device or the terminal device in the above method embodiments.
  • a communication unit may also be referred to as a transceiver, transceiver, transceiver, or the like.
  • the processing unit may also be referred to as a processor, a processing single board, a processing module, a processing device, and the like.
  • the device for implementing the receiving function in the communication unit 1502 may be regarded as a receiving unit, and the device for implementing the sending function in the communication unit 1502 may be regarded as a transmitting unit, that is, the communication unit 1502 includes a receiving unit and a transmitting unit.
  • a communication unit may also sometimes be referred to as a transceiver, transceiver, or transceiver circuit, or the like.
  • the receiving unit may also sometimes be referred to as a receiver, receiver, or receiving circuit, or the like.
  • the transmitting unit may also sometimes be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.
  • a processing unit configured to determine the first paging superframe PH according to the first extended discontinuous reception eDRX cycle, and determine the second PH according to the second eDRX cycle; wherein, the first PH includes the first paging time window PTW, the second PH includes a second PTW;
  • a communication unit configured to monitor POs in the first PTW and the second PTW;
  • the starting position of the first PTW in the first PH is determined according to the first eDRX cycle and an offset value. Or, if the first PH and the second PH are the same PH, the starting position of the first PTW and the starting position of the second PTW are both determined according to the first eDRX cycle value, or The starting position of the first PTW and the starting position of the second PTW are both determined according to the second eDRX cycle value.
  • a processing unit configured to determine the first paging superframe PH according to the first extended discontinuous reception eDRX cycle, and determine the second PH according to the second eDRX cycle; wherein, the first PH includes the first paging time window PTW, the second PH includes a second PTW;
  • a communication unit configured to schedule a paging message within the first PTW and/or the second PTW when it is determined to page a terminal device
  • the starting position of the first PTW in the first PH is determined according to the first eDRX cycle and an offset value. Or, if the first PH and the second PH are the same PH, the starting position of the first PTW and the starting position of the second PTW are both determined according to the first eDRX cycle value, or The starting position of the first PTW and the starting position of the second PTW are both determined according to the second eDRX cycle value.
  • a processing unit configured to determine the first paging frame PF according to the paging frame offset value; the first PF and the second PF are the same PF; the first PF is the PF located in the RAN paging cycle of the radio access network , the second PF is any PF in the paging time window PTW in the second eDRX cycle; the communication unit is configured to monitor the PO in the first PF.
  • a processing unit configured to determine the first paging frame PF according to the paging frame offset value; the first PF and the second PF are the same PF; the first PF is the PF located in the RAN paging cycle of the radio access network , the second PF is any PF in the paging time window PTW in the second eDRX cycle; the communication unit is configured to schedule the paging message in the first PF when the terminal device is determined to be paged.
  • processing unit 1501 and the communication unit 1502 may also perform other functions.
  • processing unit 1501 and the communication unit 1502 may also perform other functions.
  • FIG. 16 shows an apparatus 1600 provided in this embodiment of the present application.
  • the apparatus shown in FIG. 16 may be a hardware circuit implementation of the apparatus shown in FIG. 15 .
  • the communication apparatus can be applied to the flow chart shown above to perform the functions of the terminal device or the network device in the above method embodiments. For convenience of explanation, FIG. 16 only shows the main components of the communication device.
  • the communication device 1600 includes a processor 1610 and an interface circuit 1620 .
  • the processor 1610 and the interface circuit 1620 are coupled to each other.
  • the interface circuit 1620 can be a transceiver or an input-output interface.
  • the communication apparatus 1600 may further include a memory 1630 for storing instructions executed by the processor 1610 or input data required by the processor 1610 to execute the instructions or data generated after the processor 1610 executes the instructions.
  • the processor 1610 is used to implement the functions of the above-mentioned processing unit 1501
  • the interface circuit 1620 is used to implement the functions of the above-mentioned communication unit 1502 .
  • the terminal device chip When the above communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiments.
  • the terminal device chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal device, and the information is sent by the network device to the terminal device; or, the terminal device chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal device antenna) to send information, the information is sent by the terminal equipment to the network equipment.
  • modules such as a radio frequency module or an antenna
  • the network device chip When the above communication device is a chip applied to a network device, the network device chip implements the functions of the network device in the above method embodiments.
  • the network device chip receives information from other modules (such as a radio frequency module or an antenna) in the network device, and the information is sent by the terminal device to the network device; or, the network device chip sends information to other modules in the network device (such as a radio frequency module or an antenna). antenna) to send information, the information is sent by the network equipment to the terminal equipment.
  • modules such as a radio frequency module or an antenna
  • the processor in the embodiments of the present application may be a central processing unit (Central Processing Unit, CPU), and may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • a general-purpose processor may be a microprocessor or any conventional processor.
  • the processor may be a random access memory (Random Access Memory, RAM), a flash memory, a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable memory
  • RAM Random Access Memory
  • ROM read-only memory
  • PROM programmable read-only memory
  • PROM Programmable ROM
  • EEPROM Electrically erasable programmable read-only memory
  • registers hard disk, removable hard disk, CD-ROM or any other form of storage medium known in the art middle.
  • An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and storage medium may reside in an ASIC.
  • the ASIC may be located in a network device or in an end device.
  • the processor and storage medium may also exist as discrete components in a network device or terminal device.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, etc.) having computer-usable program code embodied therein.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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Abstract

一种通信方法及装置,其中方法包括:根据第一eDRX周期确定第一PH,根据第二eDRX周期确定第二PH;其中,所述第一PH包括第一PTW,所述第二PH包括第二PTW;在所述第一PTW,以及所述第二PTW中监听寻呼时机PO;其中,若所述第一PH与所述第二PH为同一个PH,所述第一PTW在所述第一PH中的起始位置根据所述第一eDRX周期和偏移值确定。

Description

一种通信方法及装置
相关申请的交叉引用
本申请要求在2021年01月13日提交中国专利局、申请号为PCT/CN2021/071548、申请名称为“一种通信方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术领域,特别涉及一种通信方法及装置。
背景技术
新无线(new radio,NR)系统等系统中,处于无线资源控制(radio resource control,RRC)空闲(idle)态或RRC非激活(inactive)态的终端设备可以按照非连续接收(discontinuous reception,DRX)方式,定期醒来监听寻呼(paging)消息,定期醒来的周期可以称为DRX周期,醒来的位置称为寻呼机会(paging occasion,PO)。如图1所示,DRX周期可以包括持续时长(on duration)和DRX机会(opportunity for DRX)两个部分。在“On Duration”的时间内包括至少一个PO,在“opportunity for DRX”时间内,不包括PO,终端设备处于休眠状态,以节省功耗。终端设备会在PO位置起始处进行盲检,如果盲检到物理下行控制信道(physical downlink control channel,PDCCH),且该PDCCH调度的物理下行共享信道(physical downlink shared channel,PDSCH)中包括寻呼自己的寻呼消息,则确定需要切换到RRC连接态,否则保持RRC空闲态或RRC非激活态。
除了DRX之外,终端设备还可以采用扩展的非连续接收(extended discontinuous reception,eDRX)机制定期醒来监听PO,定期醒来的周期可以称为eDRX周期。DRX和eDRX之间,二者的不同在于周期的时长不同,eDRX周期大于DRX周期,因此采用eDRX机制可以增加终端设备的休眠时长,降低定期醒来的次数,从而进一步降低电能的消耗。
目前的讨论中,可以为终端设备配置多个eDRX周期,例如配置第一eDRX周期和第二eDRX周期。终端设备可以按照第一eDRX周期监听核心网(core network,CN)发起的寻呼消息,按照第二eDRX周期监听无线接入网(radio access network,RAN)发起的寻呼消息。
结合上面的描述,目前的问题在于,当终端设备根据多个eDRX周期检测寻呼消息时,会提高终端设备的功耗,导致终端设备的待机时间减少。
发明内容
本申请实施方式的目的在于提供一种通信方法及装置,用以降低终端设备的功耗,进而提高终端设备的待机时间。
第一方面,本申请提供一种通信方法,该方法适用于终端设备采用eDRX机制监听PO的场景。该方法的执行主体为终端设备或终端设备中的一个模块,这里以终端设备为执行主体为例进行描述。该方法包括:根据第一eDRX周期确定第一PH,根据第二eDRX周 期确定第二PH;其中,第一PH包括第一PTW,第二PH包括第二PTW;在第一PTW,以及第二PTW中监听PO;其中,若第一PH与第二PH为同一个PH,第一PTW在第一PH中的起始位置根据第一eDRX周期和偏移值确定。
在一种可能的实现方式中,所述根据第一eDRX周期确定第一寻呼超帧PH,包括:根据第一eDRX周期和PH偏移值确定第一PH,PH偏移值根据第一eDRX周期和第二eDRX周期确定。
通过实施第一方面所描述的方法,根据第一eDRX周期和PH偏移值确定第一PH,根据第二eDRX周期确定第二PH,使得第一PH与第二PH可以为同一个PH。如果确定第一PH时采用与确定第二PH时相同的方法,即只根据第一eDRX周期确定第一PH,则可能不会出现第一PH与第二PH为同一个PH的场景。
通过实施第一方面所描述的方法,第一PH与第二PH为同一个PH时,终端设备可以根据第一eDRX周期和偏移值确定第一PTW的起始位置,从而使得第一PTW与第二PTW在时域上存在重叠,可以实现减少终端设备在第一PH中需要唤醒的总时长,降低终端设备的功耗。
在一种可能的实现方式中,第一PTW与第二PTW在时域上存在重叠。
第一PTW与第二PTW在时域上重叠时,第一PTW中的部分PO与第二PTW中的部分PO重合,两个重合的PO只需要监听一次即可,从而可以减少终端设备需要监听的PO总数,降低终端设备的功耗,提高监听寻呼消息的效率。
在一种可能的实现方式中,偏移值为第二参数值与第一参数值之间的差值;其中,第二参数值是根据终端设备的标识与第二eDRX周期确定的;第一参数值是根据终端设备的标识与第一eDRX周期确定的。
通过该方法,可以使得第一PTW的起始位置与第二PTW的起始位置在第一PH中重合,在该情况下,终端设备在第一PH中需要唤醒的总时长最小,需要监听的PO总数最小,显著降低终端设备的功耗。
在一种可能的实现方式中,第二参数值用于确定第二PTW的起始位置对应的系统帧号SFN;第一参数值用于确定第三PTW的起始位置对应的SFN,第三PTW为根据第一eDRX周期在第一PH中确定的PTW。
在一种可能的实现方式中,偏移值大于第一门限值,且小于第二门限值;其中,第一门限值为第二PTW的起始位置对应的SFN与第三PTW的结束位置对应的SFN之间的差值,第二门限值为第二PTW的结束位置对应的SFN与第三PTW的起始位置对应的SFN之间的差值;第三PTW为根据第一eDRX周期在第一PH中确定的PTW。
在一种可能的实现方式中,第一eDRX周期,第二eDRX周期和/或偏移值来自网络设备。
在一种可能的实现方式中,若第一PH与第二PH为不同的PH,第一PTW在第一PH中的起始位置根据第一eDRX周期确定。
第二方面,本申请一种通信方法,该方法适用于终端设备采用eDRX机制监听PO的场景。该方法的执行主体为网络设备或网络设备中的一个模块,这里以网络设备为执行主体为例进行描述。该方法包括:根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,根据第二eDRX周期确定第二PH;其中,第一PH包括第一寻呼时间窗PTW,第二PH包括第二PTW;当确定寻呼终端设备时,在第一PTW和/或第二PTW内调度寻呼消息; 其中,若第一PH与第二PH为同一个PH,第一PTW在第一PH中的起始位置根据第一eDRX周期和偏移值确定。
在一种可能的实现方式中,所述根据第一eDRX周期确定第一寻呼超帧PH,包括:根据第一eDRX周期和PH偏移值确定第一PH,PH偏移值根据第一eDRX周期和第二eDRX周期确定。
在一种可能的实现方式中,第一PTW,与第二PTW在时域上存在重叠。
在一种可能的实现方式中,偏移值为第二参数值与第一参数值之间的差值;其中,第二参数值是根据终端设备的标识与第二eDRX周期确定的;第一参数值是根据终端设备的标识与第一eDRX周期确定的。
在一种可能的实现方式中,第二参数值用于确定第二PTW的起始位置对应的系统帧号SFN;第一参数值用于确定第三PTW的起始位置对应的SFN,第三PTW为根据第一eDRX周期在第一PH中确定的PTW。
在一种可能的实现方式中,偏移值大于第一门限值,且小于第二门限值;其中,第一门限值为第二PTW的起始位置对应的SFN与第三PTW的结束位置对应的SFN之间的差值,第二门限值为第二PTW的结束位置对应的SFN与第三PTW的起始位置对应的SFN之间的差值;第三PTW为根据第一eDRX周期在第一PH中确定的PTW。
在一种可能的实现方式中,第一eDRX周期,第二eDRX周期和/或偏移值来自网络设备。
在一种可能的实现方式中,若第一PH与第二PH为不同的PH,第一PTW在第一PH中的起始位置根据第一eDRX周期确定。
第三方面,本申请提供一种通信方法,该方法适用于终端设备采用eDRX机制监听PO的场景。该方法的执行主体为终端设备或终端设备中的一个模块,这里以终端设备为执行主体为例进行描述。该方法包括:根据第一eDRX周期确定第一寻呼超帧PH,根据第二eDRX周期确定第二PH;其中,第一PH包括第一PTW,第二PH包括第二PTW;在第一PTW,以及第二PTW中监听PO;其中,若第一PH与第二PH为同一个PH,第一PTW的起始位置以及第二PTW的起始位置均根据第一eDRX周期值确定,或者第一PTW的起始位置以及第二PTW的起始位置均根据第二eDRX周期值确定。
通过该方法,可以使得第一PTW的起始位置与第二PTW的起始位置在第一PH中重合,在该情况下,终端设备在第一PH中需要唤醒的总时长最小,需要监听的PO总数最小,显著降低终端设备的功耗。
在一种可能的实现方式中,所述根据第一eDRX周期确定第一寻呼超帧PH,包括:根据第一eDRX周期和PH偏移值确定第一PH,PH偏移值根据第一eDRX周期和第二eDRX周期确定。
在一种可能的实现方式中,若第一PH与第二PH为不同的PH,第一PTW的起始位置根据第一eDRX周期确定,第二PTW的起始位置根据第二eDRX周期确定。
在一种可能的实现方式中,方法还包括:第一eDRX周期,第二eDRX周期和/或偏移值来自网络设备。
第四方面,本申请一种通信方法,该方法适用于终端设备采用eDRX机制监听PO的场景。该方法的执行主体为网络设备或网络设备中的一个模块,这里以网络设备为执行主体为例进行描述。该方法包括:根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧 PH,根据第二eDRX周期确定第二PH;其中,第一PH包括第一寻呼时间窗PTW,第二PH包括第二PTW;当确定寻呼终端设备时,在第一寻呼时间窗PTW和/或第二PTW内调度寻呼消息;其中,若第一PH与第二PH为同一个PH,第一PTW的起始位置以及第二PTW的起始位置均根据第一eDRX周期值确定,或者第一PTW的起始位置以及第二PTW的起始位置均根据第二eDRX周期值确定。
在一种可能的实现方式中,所述根据第一eDRX周期确定第一寻呼超帧PH,包括:根据第一eDRX周期和PH偏移值确定第一PH,PH偏移值根据第一eDRX周期和第二eDRX周期确定。
在一种可能的实现方式中,若第一PH与第二PH为不同的PH,第一PTW的起始位置根据第一eDRX周期确定,第二PTW的起始位置根据第二eDRX周期确定。
在一种可能的实现方式中,第一eDRX周期,第二eDRX周期和/或偏移值来自网络设备。
第五方面,本申请提供一种通信方法,该方法适用于终端设备采用eDRX机制监听PO的场景。该方法的执行主体为终端设备或终端设备中的一个模块,这里以终端设备为执行主体为例进行描述。该方法包括:根据寻呼帧偏移值确定第一寻呼帧PF;第一PF与第二PF为相同的PF;第一PF为位于无线接入网RAN寻呼周期中的PF,第二PF为第二eDRX周期中的寻呼时间窗PTW中的任一PF;在第一PF中监听PO。
通过该方法,可以使得第一PF中的PO与第二PF中的PO重合,在该情况下,终端设备需要监听的PO总数减少,可以降低终端设备的功耗,提高监听效率。
在一种可能的实现方式中,寻呼帧偏移值为第二PF的帧号与第三PF的帧号之间的差值;第三PF为根据RAN寻呼周期确定的PF。
在一种可能的实现方式中,接收来自网络设备的寻呼帧偏移值。
第六方面,本申请一种通信方法,该方法适用于终端设备采用eDRX机制监听PO的场景。该方法的执行主体为网络设备或网络设备中的一个模块,这里以网络设备为执行主体为例进行描述。该方法包括:根据寻呼帧偏移值确定第一寻呼帧PF;第一PF与第二PF为相同的PF;第一PF为位于无线接入网RAN寻呼周期中的PF,第二PF为第二eDRX周期中的寻呼时间窗PTW中的任一PF;当确定寻呼终端设备时,在第一PF中调度寻呼消息。
在一种可能的实现方式中,寻呼帧偏移值为第二PF的帧号与第三PF的帧号之间的差值;第三PF为根据RAN寻呼周期确定的PF。
在一种可能的实现方式中,方法还包括:向终端设备指示寻呼帧偏移值。
第七方面,本申请还提供一种通信装置,该通信装置具有实现上述第一方面或第三方面或第五方面提供的任一方法。该通信装置可以通过硬件实现,也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种可能的实现方式中,该通信装置包括:处理器,该处理器被配置为支持该通信装置执行以上所示方法中终端设备的相应功能。该通信装置还可以包括存储器,该存储可以与处理器耦合,其保存该通信装置必要的程序指令和数据。可选地,该通信装置还包括接口电路,该接口电路用于支持该通信装置与网络设备等设备之间的通信。
在一种可能的实现方式中,该通信装置包括相应的功能模块,分别用于实现以上方法中的步骤。功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。硬件或软件包 括一个或多个与上述功能相对应的模块。
在一种可能的实施方式中,通信装置的结构中包括处理单元和通信单元,这些单元可以执行上述方法示例中相应功能,具体参见第一方面或第三方面或第五方面提供的方法中的描述,此处不做赘述。
第八方面,本申请还提供一种通信装置,该通信装置具有实现上述第二方面或第四方面或第六方面提供的任一方法。该通信装置可以通过硬件实现,也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种可能的实现方式中,该通信装置包括:处理器,该处理器被配置为支持该通信装置执行以上所示方法中网络设备的相应功能。该通信装置还可以包括存储器,该存储可以与处理器耦合,其保存该通信装置必要的程序指令和数据。可选地,该通信装置还包括接口电路,该接口电路用于支持该通信装置与终端设备等设备之间的通信。
在一种可能的实现方式中,该通信装置包括相应的功能模块,分别用于实现以上方法中的步骤。功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的实施方式中,通信装置的结构中包括处理单元和通信单元,这些单元可以执行上述方法示例中相应功能,具体参见第二方面或第四方面或第六方面提供的方法中的描述,此处不做赘述。
第九方面,提供了一种通信装置,包括处理器和接口电路,接口电路用于接收来自该通信装置之外的其它通信装置的信号并传输至该处理器或将来自该处理器的信号发送给该通信装置之外的其它通信装置,该处理器通过逻辑电路或执行代码指令用于实现前述第一方面或第三方面或第五方面中任一方面、以及任一方面的任意可能的实现方式中的方法。
第十方面,提供了一种通信装置,包括处理器和接口电路,接口电路用于接收来自该通信装置之外的其它通信装置的信号并传输至该处理器或将来自该处理器的信号发送给该通信装置之外的其它通信装置,该处理器通过逻辑电路或执行代码指令用于实现前述第二方面或第四方面或第六方面中任一方面、以及任一方面的任意可能的实现方式中的方法的功能模块。
第十一方面,提供了一种计算机可读存储介质,该计算机可读存储介质中存储有计算机程序或指令,当该计算机程序或指令被处理器执行时,实现前述第一方面至第六方面中任一方面、以及任一方面的任意可能的实现方式中的方法。
第十二方面,提供了一种存储有指令的计算机程序产品,当该指令被处理器运行时,实现前述第一方面至第六方面中任一方面、以及任一方面的任意可能的实现方式中的方法。
第十三方面,提供一种芯片系统,该芯片系统包括处理器,还可以包括存储器,用于实现前述第一方面至第六方面中任一方面、以及任一方面的任意可能的实现方式中的方法。该芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
第十四方面,提供一种通信系统,所述系统包括第九方面所述的装置(如终端设备)以及第十方面所述的装置(如网络设备)。
附图说明
图1为一种DRX寻呼示意图;
图2为适用于本申请的一种网络架构示意图;
图3为本申请实施例提供的一种eDRX寻呼示意图;
图4(a)为本申请实施例提供的一种eDRX寻呼示意图;
图4(b)为本申请实施例提供的一种eDRX寻呼示意图;
图5为本申请实施例提供的一种通信方法流程示意图;
图6为本申请实施例提供的一种第一PTW和第二PTW的位置关系示意图;
图7为本申请实施例提供的一种第一PTW和第二PTW的位置关系示意图;
图8为本申请实施例提供的一种第一PTW和第二PTW的位置关系示意图;
图9为本申请实施例提供的一种第一PTW和第二PTW的位置关系示意图;
图10为本申请实施例提供的一种第一PTW和第二PTW的位置关系示意图;
图11为本申请实施例提供的一种通信方法流程示意图;
图12为本申请实施例提供的一种监听示意图;
图13为本申请实施例提供的一种监听示意图;
图14为本申请实施例提供的一种通信方法流程示意图;
图15为本申请实施例提供的一种通信装置结构示意图;
图16为本申请实施例提供的一种通信装置结构示意图;
图17为本申请实施例提供的一种第一PTW和第二PTW的位置关系示意图;
图18为本申请实施例提供的一种第一PTW和第二PTW的位置关系示意图。
具体实施方式
下面将结合附图对本申请实施例作进一步地详细描述。
本申请实施例的技术方案可以应用于各种通信系统,例如:长期演进(long term evolution,LTE)系统、NR系统以及下一代通信系统等,在此不做限制。
本申请实施例中,终端设备,可以为具有无线收发功能的设备或可设置于任一设备中的芯片,也可以称为用户设备(user equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。本申请实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端、增强现实(augmented reality,AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端等。
网络设备,可以是NR系统中的下一代基站(next Generation node B,gNB),可以是LTE系统中的演进型基站(evolutional node B,eNB)等。
图2为适用本申请的一种网络架构示意图。如图2所示,终端设备可接入到网络设备,以通过网络设备获取外网(例如数据网络(data network,DN))的服务,或者通过网络设备与其它设备通信,如可以与其它终端设备通信。
图2中,终端设备可以被配置为RRC空闲态或者RRC非激活态或者RRC激活态。RRC空闲态的终端设备,需要监听来自CN的寻呼消息;RRC非激活态的终端设备,需要监听来自CN的寻呼消息以及来自RAN的寻呼消息。其中,来自RAN的寻呼消息可以简称为RAN寻呼消息,是接入网设备(例如基站)收到需要发送至终端设备的数据或信令时,在基于RAN通知区域(RAN-based notification area,RNA)内向终端设备发送的寻呼消息;来自CN的寻呼消息可以简称为CN寻呼消息,是核心网设备需要寻呼终端设备时, 通过接入网设备(例如基站)向终端设备发送的寻呼消息。
终端设备监听寻呼消息的过程如下:终端设备在PO处监听PDCCH,根据监听到的PDCCH确定是否存在该终端设备需要接收的寻呼消息。当监听到的PDCCH中包括采用寻呼无线网络临时标识(paging radio network temporary identity,P-RNTI)加扰的下行控制信息(downlink control information,DCI),则在该DCI调度的PDSCH中接收寻呼消息;如果确定该寻呼消息为寻呼自己的寻呼消息,终端设备切换到RRC连接态,否则保持RRC空闲态或RRC非激活态。
由于RRC非激活态的终端设备,需要监听CN寻呼消息以及RAN寻呼消息,可以为终端设备配置两套参数,其中一套参数用于监听CN寻呼消息,另一套参数用于监听RAN寻呼消息。用于监听CN寻呼消息的参数可以包括eDRX周期、寻呼时间窗(paging time window,PTW)的窗口长度等信息。用于监听RAN寻呼消息的参数可以包括eDRX周期、PTW的窗口长度等信息;或者用于监听RAN寻呼消息的参数可以包括RAN寻呼周期。
假设CN寻呼消息对应的eDRX周期用T_cn表示,RAN寻呼消息对应的eDRX周期用T_ran表示。对于CN寻呼消息对应的eDRX周期,其中会配置PTW。如图3所示,在CN寻呼消息对应的eDRX周期T_cn中,在PTW外,终端设备进入休眠状态;在PTW内,终端设备按照周期T监听CN寻呼消息。
对于RAN寻呼消息,当配置PTW时,如图4(a)所示,在PTW外,终端设备进入休眠状态;在PTW内,终端设备按照周期T监听寻呼消息。当不配置PTW时,如图4(b)所示,终端设备按照RAN寻呼周期监听RAN寻呼消息。
其中,图3以及图4(a)中的T为RAN寻呼消息的周期(以下简称为RAN寻呼周期)、终端设备的特定(specific)寻呼周期(如果配置了)和缺省寻呼周期中的最小值,缺省寻呼周期是网络设备广播的,如果RAN寻呼周期和特定寻呼周期没有配置,则使用缺省寻呼周期监听寻呼消息。
需要说明的是,当存在PTW时,终端设备在监听寻呼消息的过程中,需要确定包括PTW的寻呼超帧(paging hyperframe,PH),PTW的起始位置所在的系统帧的系统帧号(system frame number,SFN)。终端设备可以在PTW内确定包括PO的寻呼帧(paging frame,PF)的位置,从而在PF内的PO处进行监听。
其中,PH的确定可以通过如下公式完成,符合该公式的所有超级系统帧号(hyper-system frame number,H-SFN)对应的超帧都可以作为PH:
H-SFN mod T eDRX,H=(UE_ID mod T eDRX,H)···(1)
其中,T eDRX,H是eDRX周期,UE_ID是根据终端设备的标识确定的,mod表示取模运算。
PTW的起始位置所在的系统帧的系统帧号SFN满足以下公式:
SFN=256*i eDRX,i eDRX=floor(UE_ID/T eDRX,H)mod 4···(2)
其中,floor()表示向下取整运算。
PF的SFN满足以下公式:
(SFN+PF_offset)mod T=(T div N)*(UE_ID mod N)···(3)
其中,T为RAN寻呼周期、终端设备的特定寻呼周期和缺省寻呼周期中的最小值。
PO的下标i_s满足以下公式:
i_s=floor(UE_ID/N)mod Ns···(4)
其中,PF_offset是用于确定PF的偏移量,由网络设备发送的系统信息块1(system information block 1,SIB1)携带,N是PTW内包括的PF的总数,Ns代表一个PF内包括的PO的个数。
通过前面的描述可知,当为终端设备配置多套参数时,终端设备需要监听寻呼消息的次数增多,会提高终端设备的功耗,导致终端设备的待机时间减少。为此,本申请提供一种方法,可以减少终端设备需要监听寻呼消息的次数,从而降低终端设备的功耗。
本申请描述的网络架构以及业务场景是为了更加清楚的说明本申请的技术方案,并不构成对于本申请提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请提供的技术方案对于类似的技术问题,同样适用。
本申请中,以网络设备与终端设备之间交互为例进行说明,网络设备执行的操作也可以由网络设备内部的芯片或模块执行,终端设备执行的操作也可以由终端设备内部的芯片或模块执行。
结合前面的描述,如图5所示,为本申请实施例提供的一种通信方法流程示意图。参见图5,该方法包括:
可选地,S501:网络设备根据第一eDRX周期确定第一PH,根据第二eDRX周期确定第二PH。
可选地,S502:终端设备根据第一eDRX周期确定第一PH,根据第二eDRX周期确定第二PH。
其中,第一PH包括第一PTW,第二PH包括第二PTW。
需要说明的是,终端设备可以处于RRC非激活态,还可以支持采用两个eDRX周期监听寻呼消息。S501和S502的执行顺序并不限定,可以先后执行,也可以同时执行。
图5的流程中,第一eDRX周期内配置了第一PTW,第二eDRX周期内配置了第二PTW。本申请实施例中,网络设备可以向终端设备配置第一eDRX周期,第二eDRX周期等信息。举例来说,假设第一eDRX周期用于接收RAN寻呼消息,第二eDRX周期用于接收CN寻呼消息。网络设备可以向终端设备发送第一配置信息,第一配置信息包括第一eDRX周期,第一配置信息还可以包括第一eDRX周期中的第一PTW的窗口长度等信息。
其中,第一配置信息可以通过RRC信令携带,例如第一配置信息可以通过RRC连接释放(RRC connection release)消息或者RRC释放(release)消息携带。第一配置信息中还可以包括偏移值,该偏移值可以用于确定第一PTW的起始位置。网络设备不向终端设备配置偏移值时,该偏移值可以由终端设备确定,或者还可以通过其他方式确定,本申请实施例并不限定。
网络设备还可以向终端设备发送第二配置信息,第二配置信息中包括第二eDRX周期,第二配置信息中还可以包括第二eDRX周期中的第二PTW的窗口长度等信息。第二配置信息可以在附着(attach)过程或跟踪区更新(tracking area update,TAU)过程中发送给终端设备。例如第二配置信息可以通过attach过程中的附着请求(attach request)消息携带;或者第二配置信息可以通过TAU过程中的TAU请求(TAU request)消息携带。
需要说明的是,在图5的流程中,第一eDRX周期以及第二eDRX周期以超级系统帧为单位,第一eDRX周期包括至少一个超级系统帧,第二eDRX周期包括至少一个超级系统帧。
本申请实施例中,可以通过前面的公式(1)确定第一PH和第二PH。例如,结合公 式(1),第一PH对应的超级系统帧号H-SFN 1可以满足以下形式:
H-SFN 1 mod T 1 eDRX,H=(UE_ID mod T 1 eDRX,H)···(5-1)
其中,T 1 eDRX,H表示第一eDRX周期,UE_ID是根据终端设备的标识确定的,例如终端设备的标识为国际移动用户标识(international mobile subscriber identity,IMSI),UE_ID可以等于IMSI mod 1024,mod表示取模运算。
相应的,第二PH对应的超级系统帧号H-SFN 2可以满足以下形式:
H-SFN 2 mod T 2 eDRX,H=(UE_ID mod T 2 eDRX,H)···(6)
其中,T 2 eDRX,H表示第二eDRX周期。
通过上面的过程可知,如果第一eDRX周期和第二eDRX周期相等,那么第一PH和第二PH实际上为同一个PH;如果第一eDRX周期和第二eDRX周期不相等,那么每隔固定数量的超级系统帧,存在以下两种可能的场景:
场景1:第一PH对应的超级系统帧号和第二PH对应的超级系统帧号可能相同,即每隔固定数量的超级系统帧,第一PTW和第二PTW位于同一个PH内。该固定数量的取值可以为第一eDRX周期和第二eDRX周期的最小公倍数。
举例来说,如图6所示,假设UE_ID的取值为5,第一eDRX周期的取值为2个超级系统帧,第二eDRX周期的取值为3个超级系统帧。结合上面的公式(5-1)和(6),第一PH对应的超级系统帧号H-SFN 1的取值依次为1、3、5、7、9、11等;第二PH的对应的超级系统帧号H-SFN 2的取值依次为2、5、8、11、14等。从上面的过程可以看出,每隔6=2×3个超级系统帧,第一PTW和第二PTW位于同一个PH内。
场景2:第一PH对应的超级系统帧号和第二PH对应的超级系统帧号不同,此时可以额外引入PH偏移值用于确定第一PH。在该场景中,第一PH可以根据PH偏移值、第一eDRX周期以及终端设备的标识确定。举例来说,用于确定第一PH的公式可以满足如下形式:
(H-SFN 1+offset PH)mod T 1 eDRX,H=(UE_ID mod T 1 eDRX,H)···(5-2)
其中,offset PH为PH偏移值,其他参数的含义与公式(5-1)相同,在此不再赘述。
场景2中,PH偏移值的作用是用来补偿第一PH和第二PH之间的间隔,使得根据PH偏移值确定的第一PH与第二PH,每隔固定数量的超级系统帧,对应相同的超级系统帧号,从而使得第一PH中的第一PTW和第二PH中的第二PTW位于同一个PH内。该固定数量的取值可以为第一eDRX周期和第二eDRX周期的最小公倍数。
举例来说,如图17所示,假设第一eDRX周期的取值为20个超级系统帧,第二eDRX周期的取值为30个超级系统帧。假设第一PH对应的超级系统帧号H-SFN 1的取值依次为30、50、70、90、110等;第二PH的对应的超级系统帧号H-SFN 2的取值依次为21、51、81、111、141等。从上面的过程可以看出,第一PTW和第二PTW始终不可能位于同一个PH内,为了使得第一PTW和第二PTW位于同一个PH内,可以通过取值为1的PH偏移值offset PH,确定第一PH。如图18所示,根据PH偏移值确定的第一PH对应的超级系统帧号H-SFN 1的取值依次为31、51、71、91、111等,每隔60=2×30个超级系统帧,第一PTW和第二PTW位于同一个PH内。图18中,超级系统帧号为51和111时,第一PTW和第二PTW位于同一个PH内。
本申请实施例中,网络侧或者终端设备侧可以根据第一eDRX周期、第二eDRX周期以及UE_ID能够确定第一PH对应的超级系统帧号和第二PH对应的超级系统帧号是否可 能相同,如果可能相同,则可以认为对应场景1,即不需要使用PH偏移值确定第一PH;如果可能不相同,则可以认为对应场景2,即需要使用PH偏移值确定第一PH。需要说明的是,在第一PH对应的超级系统帧号和第二PH对应的超级系统帧号有可能相同的场景下,为了更灵活的确定第一PH的位置,也可以使用PH偏移值确定第一PH。
网络侧,PH偏移值offset PH的确定可通过如下方式实现:
方式一,CN决定第二eDRX周期(即IDLE eDRX周期),RAN决定第一eDRX周期(即INACTIVE eDRX周期)时,由CN确定PH偏移值,此时RAN将第一eDRX周期反馈告知CN,CN基于第一eDRX周期和第二eDRX周期获得PH偏移值offset PH
方式二,CN决定第二eDRX周期(即IDLE eDRX周期),RAN决定第一eDRX周期(即INACTIVE eDRX周期)时,由RAN确定PH偏移值,此时CN将第二eDRX周期下发告知RAN,例如通过Core Network Assistance Information for RRC INACTIVE告知RAN,RAN基于第一eDRX周期和第二eDRX周期获得PH偏移值offset PH
方式三,CN决定第二eDRX周期(即IDLE eDRX周期),和第一eDRX周期(即INACTIVE eDRX周期)时,由CN确定PH偏移值,此时CN基于第一eDRX周期和第二eDRX周期计算获得PH偏移值offset PH
相应的,对于终端设备,PH偏移值offset PH可以是网络侧配置的,即网络侧在确定PH偏移值offset PH后,通过RRC信令或NAS信令告知终端设备。或者,终端设备也可以基于第一eDRX周期和第二eDRX周期确定PH偏移值offset PH,具体可以参考上面的描述。
特别的,上述PH偏移值offset PH根据第一eDRX周期和第二eDRX周期确定,举例来说,可以是将第一eDRX周期和第二eDRX周期代入计算PH对应的超级系统帧号H-SFN公式中,也即公式(5-1)和(6),分别获得公式(5-1)和(6)等号右边的值后,取二者差值为PH偏移值offset PH,例如offset PH=(UE_ID mod T 1 eDRX,H)-(UE_ID mod T 2 eDRX,H)。其中,公式(5-1)和(6)中的UE_ID可以取值相同。如果公式(5-1)和(6)中的UE_ID取值不同,那么公式(5-1)中的UE_ID可以用的UE_ID1代替,公式(6)中的UE_ID可以用的UE_ID2代替。UE_ID1和UE_ID2均可以是指终端设备的标识,例如UE_ID1是终端设备的全球唯一标识,UE_ID1是终端设备的临时标识等,具体根据实际情况确定。
再举例来说,在一种可能的实现方式中,PH偏移值可以为第一eDRX周期和第二eDRX周期的差值。
特别的,上述PH偏移值offset PH可能通过计算得到值为0,此时可以认为每隔固定数量的超级系统帧,第一PTW和第二PTW位于同一个PH内,也即场景1。
S503:当确定寻呼终端设备时,网络设备在第一PTW和/或第二PTW中调度寻呼消息。
网络设备具体如何确定是否需要寻呼终端设备,本申请实施例对此并不限定。例如,一种情况下,网络设备收到需要发送至终端设备的数据或信令时,确定寻呼终端设备;另一种情况下,网络设备接收到核心网侧的寻呼消息时,确定寻呼终端设备。以上只是示例,还可能存在其它情况,在此不再逐一举例。
网络设备具体如何调度寻呼消息,本申请实施例并不限定。例如,网络设备确定在第一PTW中调度寻呼消息时,网络设备可以在第一PTW中的PO内的PDCCH中发送采用P-RNTI加扰的DCI,该DCI调度的PDSCH中包括寻呼终端设备的寻呼消息。需要说明的是,网络设备发送该DCI时,还需要在该DCI调度的PDSCH中发送相应的寻呼消息,具 体过程不再赘述。
S504:终端设备在第一PTW,以及第二PTW中监听PO。
具体的,第一PTW以及第二PTW中均包括至少一个PO,一个PO包含了一个或多个PDCCH监听时机,终端设备监听PO中的PDCCH监听时机,如果在PDCCH监听时机中监听到的PDCCH,包括采用P-RNTI加扰的DCI,则在该DCI调度的PDSCH中接收寻呼消息。
需要说明的是,本申请实施例中,监听PO有时也可以是指监听寻呼消息,两者的含义可以相同。
终端设备在第一PTW以及第二PTW监听PO之前,可以先确定第一PTW的起始位置以及第二PTW的起始位置。第一PTW的起始位置以及第二PTW的起始位置,可以通过多种方式确定,下面分别进行描述。
实现方式一:
若第一PH与第二PH为同一个PH,此时第一PTW和第二PTW位于同一个PH内,第一PTW在第一PH中的起始位置根据第一eDRX周期和偏移值确定;第二PTW在第一PH(此处的第一PH和第二PH为同一个PH)中的起始位置根据第二eDRX周期确定。
举例来说,若第一PH与第二PH为同一个PH,第一PTW在第一PH中的起始位置对应的系统帧号SFN 1可以满足以下公式:
SFN 1=256*i 1 eDRX,i 1 eDRX=(floor(UE_ID/T 1 eDRX,H)+offset)mod 4···(7)
其中,T 1 eDRX,H表示第一eDRX周期,UE_ID是根据终端设备的标识确定的,offset表示偏移值。
再举例来说,若第一PH与第二PH为同一个PH,SFN 1可以满足以下公式:
SFN 1=256*i 1 eDRX+offset,i 1 eDRX=floor(UE_ID/T 1 eDRX,H)mod 4···(8)
需要说明的是,第二PTW在第一PH中的起始位置对应的SFN可以根据前面的公式(2)确定,在此不再赘述。
若第一PH与第二PH为不同的PH,第一PTW在第一PH中的起始位置根据第一eDRX周期确定,第二PTW在第二PH中的起始位置根据第二eDRX周期确定。具体的,可以根据公式(2)分别确定第一PTW在第一PH中的起始位置对应的SFN,以及第二PTW在第二PH中的起始位置对应的SFN,在此不再赘述。
需要说明的是,根据前面的公式(2)可知,由于PTW的起始位置对应的SFN是根据eDRX周期确定的,因此第一PTW和第二PTW位于同一个PH内时,如果按照现有技术中的公式(2)分别确定出的第一PTW的起始位置和第二PTW的起始位置是不同的,即第一PTW与第二PTW在时域上不存在重叠。
本申请实施例中,偏移值的作用,是为了使得第一PTW与第二PTW在时域上重叠,从而使得第一PTW中的部分PO与第二PTW中的部分PO重合。由于第一PTW与第二PTW在时域上重合,可以减少终端设备需要唤醒的总时长,降低终端设备的功耗。需要说明的是,终端设备也不是在PTW内一直处于唤醒状态,而是在PO位置处于唤醒状态,在PO位置之外处于休眠状态。
另外,由于第一PTW中的部分PO与第二PTW中的部分PO重合,两个重合的PO只需要监听一次即可,从而减少终端设备需要监听的PO总数,降低终端设备的功耗,提高监听寻呼消息的效率。
本申请实施例中,偏移值的实现方式可能存在多种,第一种场景中,假设第一PTW在第一PH中的起始位置对应的SFN满足公式(7)时,偏移值可以为第二参数值与第一参数值之间的差值。其中,第二参数值可以用于确定第二PTW的起始位置对应的SFN,第一参数值可以用于确定第三PTW的起始位置对应的SFN,第三PTW为根据第一eDRX周期在第一PH中确定的PTW。第三PTW,就是指在第一PTW和第二PTW位于同一个PH内时,按照现有技术中的方法(例如按照公式(2))确定出的PTW,可以认为是第一PTW在偏移之前的PTW。
具体的,第二参数值可以是根据终端设备的标识与第二eDRX周期确定的;第一参数值是根据终端设备的标识与第一eDRX周期确定的。举例来说,偏移值可以满足以下公式:
offset=i 2 eDRX–i 1 eDRX···(9)
其中,i 1 eDRX=UE_ID mod T 1 eDRX,H表示第一参数值,i 2 eDRX=UE_ID mod T 2 eDRX,H表示第二参数值。T 1 eDRX,H表示第一eDRX周期,T 2 eDRX,H表示第二eDRX周期,UE_ID是根据终端设备的标识确定的。例如,i 1 eDRX=10,i 2 eDRX=15,结合公式(9),那么offset=5。
结合公式(7)和公式(9)可知,第一PH与第二PH为同一个PH时,第一PTW的起始位置对应的SFN,与第二PTW的起始位置对应的SFN相等,即第一PTW的起始位置和第二PTW的起始位置重叠。
举例来说,假设UE_ID mod T 1 eDRX,H的值为4,UE_ID mod T 2 eDRX,H的值为6,第一PTW的窗口长度小于第二PTW的窗口长度。如图7所示,根据公式(2)确定出的第二PTW的起始位置对应的SFN=512;根据公式(2)确定出的第三PTW(第一PTW偏移前的PTW)的起始位置对应的SFN=0。而根据公式(7)和公式(9)确定出的第一PTW的起始位置对应的SFN=512,即第一PTW的起始位置和第二PTW的起始位置重叠。通过图7可以看出,如果没有对第一PTW进行偏移,终端设备需要唤醒的时长为第一PTW的窗口长度与第二PTW的窗口长度的总和;通过偏移值对第一PTW进行偏移之后,终端设备需要唤醒的时长为第二PTW的窗口长度,小于第一PTW的窗口长度与第二PTW的窗口长度的总和,从而可以减少终端设备的功耗。
另外,在第一PTW和第二PTW内,终端设备可以根据公式(3)确定包括PO的PF,并根据公式(4)确定PO在PF中的位置,从而在PO位置起始处进行监听。如图7所示,假设一个PF内包括一个PO,PO之间的间隔为T。如果没有对第一PTW进行偏移,终端设备需要监听的PO的数量为X1+X2;X1为第一PTW内包括的PO数量,X2为第二PTW内包括的PO数量。通过偏移值对第一PTW进行偏移之后,由于第一PTW的起始位置和第二PTW的起始位置重叠,在第一PTW和第二PTW内的监听周期均为T,因此第一PTW内包括的多个PO,与第二PTW内包括的多个PO的位置重合,那么终端设备需要监听的PO总数可以减少,从而进一步降低终端设备的功耗。图7中,终端设备需要监听的PO的数量为X2,远小于X1+X2。
需要说明的是,前面的描述中,以第一PTW的起始位置和第二PTW的起始位置重叠为例进行描述,本申请实施例也可以通过偏移值,使得第一PTW与第二PTW按照其他方式在时域上重叠,例如第一PTW的中心位置和第二PTW的中心位置重叠,第一PTW的结束位置和第二PTW的结束位置重叠等,在此不再逐一举例说明。
第二种场景:在第二种场景中,假设第一PTW的起始位置对应的SFN满足公式(8),那么偏移值的取值范围可以为大于第一门限值,且小于第二门限值。具体的,偏移值offset 的取值范围可以满足以下形式:
SFN 2-SFN END3<offset<SFN END2–SFN 3···(10)
其中,SFN 2-SFN END3表示第一门限值,SFN END2–SFN 3表示第二门限值;SFN 3表示第三PTW的起始位置对应的SFN,SFN 2表示第二PTW的起始位置对应的SFN,SFN END3表示所述第三PTW的结束位置对应的SFN,SFN END2表示第二PTW的结束位置对应的SFN。
举例来说,如图8所示,假设SFN 3为0,SFN END3为99;SFN 2为512,SFN END2为711;那么413<offset<711。假设需要通过偏移值使得第一PTW的起始位置和第二PTW的起始位置重叠,那么偏移值的取值可以为512;假设需要通过偏移值使得第一PTW的结束位置和第二PTW的结束位置重叠,那么偏移值的取值可以为612。其它情况可以以此类推,不再赘述。
再举例来说,如图9所示,假设SFN 2为256,SFN END2为455;SFN 3为512,SFN END3为611;那么-355<offset<-57。假设需要通过偏移值使得第一PTW的起始位置和第二PTW的起始位置重叠,那么偏移值的取值可以为-256;假设需要通过偏移值使得第一PTW的结束位置和第二PTW的结束位置重叠,那么偏移值的取值可以为-156。其它情况可以以此类推,不再赘述。
实现方式二:
实现方式二与实现方式一的区别在于,不需要通过偏移值使得第一PTW与第二PTW在时域上重叠,在实现上不需要增加信令的开销,下面详细描述。
若第一PH与第二PH为同一个PH,此时第一PTW和第二PTW位于同一个PH内,第一PTW的起始位置以及第二PTW的起始位置均根据第一eDRX周期值确定,或者第一PTW的起始位置以及第二PTW的起始位置均根据第二eDRX周期值确定。
具体的,在该实现方式中,第一PTW和第二PTW位于同一个PH内时,第一PTW的起始位置对应的SFN,以及第二PTW的起始位置对应的SFN可以满足以下公式:
SFN=256*i eDRX,i eDRX=floor(UE_ID/T eDRX,H)mod 4···(11)
其中,T eDRX,H的取值为第一eDRX周期或者第二eDRX周期。
举例来说,假设UE_ID mod T 1 eDRX,H的值为4,UE_ID mod T 2 eDRX,H的值为6。如图10所示,如果按照现有技术中的方法,第一PTW的起始位置对应的SFN等于0,第二PTW的起始位置对应的SFN均等于512,两者不重叠。按照本申请提供的方法,T eDRX,H的取值为T 1 eDRX,H时,第一PTW的起始位置对应的SFN,以及第二PTW的起始位置对应的SFN均等于0;或者T eDRX,H的取值为T 2 eDRX,H时,第一PTW的起始位置对应的SFN,以及第二PTW的起始位置对应的SFN均等于512。
由于采用相同的T eDRX,H确定第一PTW的起始位置以及第二PTW的起始位置,因此第一PTW的起始位置以及第二PTW的起始位置一定是重叠的,从而可以在减少信令开销的情况下,实现减少终端设备的唤醒时间,以及减少终端设备监听的PO总数,降低终端设备的功耗。
需要说明的是,另一种情况中,若第一PH与第二PH为不同的PH,第一PTW在第一PH中的起始位置根据第一eDRX周期确定,第二PTW在第二PH中的起始位置根据第二eDRX周期确定,具体的,可以根据公式(2)分别确定第一PTW在第一PH中的起始位置对应的SFN,以及第二PTW在第二PH中的起始位置对应的SFN,在此不再赘述。
本申请实施例中,在监听RAN寻呼消息时,也可以不配置PTW,此时终端设备按照 图4(b)所示的方案,以RAN寻呼周期监听寻呼消息,下面详细描述。
如图11所示,为本申请实施例提供的一种通信方法流程示意图。
图11的流程中,RAN寻呼周期用于接收RAN寻呼消息,第二eDRX周期用于接收CN寻呼消息。在监听RAN寻呼消息时,终端设备按照RAN寻呼周期监听寻呼消息。在监听CN寻呼消息时,在第二eDRX周期内的第二PTW外,终端设备进入休眠状态;在第二PTW内,终端设备按照周期T监听寻呼消息。参见图11,该方法包括:
可选地,S1101:网络设备根据寻呼帧偏移值确定第一PF。
可选地,S1102:终端设备根据寻呼帧偏移值确定第一PF。
其中,第一PF与第二PF为相同的PF;第一PF为位于RAN寻呼周期中的PF,第二PF为第二eDRX周期中的PTW中的任一PF。S1101和S1102的执行顺序并不限定,可以先后执行,也可以同时执行。
需要说明的是,第一PF与第二PF为相同的PF是指,第一PF的系统帧号与第二PF的系统帧号相同。终端设备可以处于RRC非激活态。
需要说明的是,在S1101之前,网络设备可以向终端设备配置RAN寻呼周期,第二eDRX周期等信息。举例来说,网络设备可以向终端设备发送第一配置信息,第一配置信息包括RAN寻呼周期等信息。
其中,第一配置信息可以通过RRC连接释放消息或者RRC释放消息携带。第一配置信息中还可以包括寻呼帧偏移值。网络设备不向终端设备配置寻呼帧偏移值时,该寻呼帧偏移值可以由终端设备确定,或者还可以通过其他方式确定,本申请实施例并不限定。
网络设备还可以向终端设备发送第二配置信息,第二配置信息中包括第二eDRX周期。第二配置信息还可以指示其它信息,例如指示第二eDRX周期中的第二PTW的窗口长度等信息。第二配置信息可以通过attach过程中的附着请求消息携带;或者第二配置信息可以通过TAU过程中的TAU请求消息携带。
结合前面的描述可知,在RAN寻呼周期中,包括一个PF;在第二eDRX周期的第二PTW中,包括多个PF,相邻两个PF的间隔为T。T为RAN寻呼周期、终端设备的特定寻呼周期和缺省寻呼周期中的最小值。
需要说明的是,RAN寻呼周期内的一个PF所包括的PO个数,与第二eDRX周期内的一个PF所包括的PO个数相等,均为Ns,Ns为大于0的整数。
本申请实施例中,寻呼帧偏移值的作用,是为了补偿RAN寻呼周期中的PF与第二eDRX周期中的PF之间的间隔,使得RAN寻呼周期中的PF与第二eDRX周期中的PF重合,从而减少终端设备需要在PF中监听的PO总数,降低终端设备的功耗,提高监听寻呼消息的效率。
寻呼帧偏移值的具体实现方式,本申请实施例并不限定。一种可能的是实现方式中,寻呼帧偏移值为第二PF的帧号与第三PF的帧号之间的差值;第三PF为根据第一eDRX周期确定的PF。第三PF可以是指根据寻呼帧偏移值对第一PF进行位置偏移之前的PF。
举例来说,寻呼帧偏移值PF_offset1可以满足以下公式:
PF_offset1=SFN 2-SFN 3···(12)
其中,SFN 2表示第二PF的系统帧号,SFN 3表示第三PF的系统帧号。
第二PF的系统帧号可以满足以下形式:
(SFN 2+PF_offset)mod T=(T div N1)*(UE_ID mod N1)···(13)
第三PF的系统帧号可以满足以下形式:
(SFN 3+PF_offset)mod T_rp=(T_rp div N2)*(UE_ID mod N2)···(14)
其中,PF_offset是用于确定PF的偏移量,T_rp表示RAN寻呼周期;N1表示第二eDRX周期中包括的PF的总数;N2表示周期T中包括的PF的总数,UE_ID是根据终端设备的标识确定的。本申请实施例中,网络设备可以向终端设备发送SIB1,SIB1中包括PF_offset,N1以及N2等参数。
结合前面的例子,第一PF的系统帧号SFN 1可以满足以下形式:
(SFN 1+PF_offset+PF_offset1)mod T_rp=(T_rp div N2)*(UE_ID mod N2)···(15)
其中,PF_offset1表示寻呼帧偏移值。
举例来说,如图12所示,示意出了按照现有技术中的方法,确定出的第三PF和第二PF的位置之间的关系。本申请实施例中,如图13所示,可以将第三PF和第二PF之间的间隔作为寻呼偏移值,从而对第三PF进行偏移,使得第一PF(偏移后的第三PF)与第二PF重合,从而减少终端设备需要在PF中监听的PO总数,降低终端设备的功耗。
需要说明的是,第一PF以及第二PF中的PO的位置,可以根据前面的公式(4)确定,在此不再赘述。
S1103:当确定寻呼终端设备时,网络设备在第一PF中调度寻呼消息。
S1104:终端设备在第一PF中监听PO。
S1103以及S1104的具体过程,可以参考前面的描述,在此不再赘述。
通过上面的过程,通过寻呼帧偏移值使得RAN寻呼周期中的第一PF与第二eDRX周期中的第二PF重合,从而减少终端设备需要监听的PF的数量,减少了需要监听的PO总数,降低终端设备的功耗,提高监听寻呼消息的效率。
现有网络中,对于非窄带物联网(narrowband internet of things,NB-IOT)的终端设备而言,仅当被配置了eDRX模式并且网络支持eDRX时,终端设备才可以运行在eDRX模式下。在eDRX模式中,eDRX周期的最小值为5.12秒(second,s),当eDRX周期被配置为5.12s时,终端设备每隔5.12s进行PO监听,PO所在的SFN满足如下公式,其中T=5.12s。
(SFN+PF_offset)mod T=(T div N)*(UE_ID mod N)···(16)
由于eDRX周期的最小值5.12s,终端设备处于eDRX时,终端设备可能无法在规定时间内(例如为4s)接收到紧急广播业务的消息,为此本申请可以提供一种方法解决该问题。
本申请实施例中,引入了小于5.12s的eDRX周期,小于5.12s的eDRX周期的取值可以为2.56s等,本申请实施例并不限定。
为了描述方便,以下将小于5.12s的eDRX周期称为迷你周期,例如迷你周期=2.56s。如图14所示,该方法包括:
S1401:网络设备发送周期指示信息。
周期指示信息指示网络设备支持的eDRX周期配置,其中,网络设备支持的eDRX周期配置至少包括小于5.12s的eDRX周期,例如支持2.56s的eDRX周期。
网络设备可以通过广播或单播方式发送周期指示信息。
S1402:终端设备向网络设备发送请求消息,该请求消息用于请求配置小于5.12s的eDRX周期。
该请求消息可以为非接入层(non access stratum,NAS)信令,终端设备在支持eDRX 并且请求使用eDRX时,可以通过NAS信令,请求将eDRX周期配置为小于5.12s,例如请求将eDRX周期配置为2.56s。
举例来说,NAS信令可以为注册请求(REGISTRATION REQUEST)消息,在注册请求消息中添加并设置请求的eDRX周期为2.56s。
需要说明的是,如果网络设备没有发送周期指示信息,或者没有向终端设备指示其支持的eDRX周期配置包括小于5.12s的eDRX周期,则终端设备请求配置eDRX周期的最小值为5.12s。
通过该方法,可以使得终端设备能够取得相较于DRX周期更长的休眠功耗节省,同时能够支持紧急广播业务的接收。
上述本申请提供的实施例中,分别从各个设备之间交互的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能,网络设备或终端设备可以包括硬件结构和/或软件模块,以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行,取决于技术方案的特定应用和设计约束条件。
本申请实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。另外,在本申请各个实施例中的各功能模块可以集成在一个处理器中,也可以是单独物理存在,也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。
与上述构思相同,如图15所示,本申请实施例还提供一种装置1500用于实现上述方法中网络设备或终端设备的功能。例如,该装置可以为软件模块或者芯片系统。本申请实施例中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。该装置1500可以包括:处理单元1501和通信单元1502。
本申请实施例中,通信单元也可以称为收发单元,可以包括发送单元和/或接收单元,分别用于执行上文方法实施例中网络设备或终端设备发送和接收的步骤。
以下,结合图15至图16详细说明本申请实施例提供的通信装置。应理解,装置实施例的描述与方法实施例的描述相互对应,因此,未详细描述的内容可以参见上文方法实施例,为了简洁,这里不再赘述。
通信单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器,处理单板,处理模块、处理装置等。可选的,可以将通信单元1502中用于实现接收功能的器件视为接收单元,将通信单元1502中用于实现发送功能的器件视为发送单元,即通信单元1502包括接收单元和发送单元。通信单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
通信装置1500执行上面实施例中图5所示的流程中终端设备的功能时:
处理单元,用于根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,根据第二eDRX周期确定第二PH;其中,所述第一PH包括第一寻呼时间窗PTW,所述第二PH包括第二PTW;
通信单元,用于在所述第一PTW,以及所述第二PTW中监听PO;
其中,若所述第一PH与所述第二PH为同一个PH,所述第一PTW在所述第一PH中的起始位置根据所述第一eDRX周期和偏移值确定。或者,若所述第一PH与所述第二 PH为同一个PH,所述第一PTW的起始位置以及所述第二PTW的起始位置均根据所述第一eDRX周期值确定,或者所述第一PTW的起始位置以及所述第二PTW的起始位置均根据所述第二eDRX周期值确定。
通信装置1500执行上面实施例中图5所示的流程中网络设备的功能时:
处理单元,用于根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,根据第二eDRX周期确定第二PH;其中,所述第一PH包括第一寻呼时间窗PTW,所述第二PH包括第二PTW;
通信单元,用于当确定寻呼终端设备时,在所述第一PTW和/或所述第二PTW内调度寻呼消息;
其中,若所述第一PH与所述第二PH为同一个PH,所述第一PTW在所述第一PH中的起始位置根据所述第一eDRX周期和偏移值确定。或者,若所述第一PH与所述第二PH为同一个PH,所述第一PTW的起始位置以及所述第二PTW的起始位置均根据所述第一eDRX周期值确定,或者所述第一PTW的起始位置以及所述第二PTW的起始位置均根据所述第二eDRX周期值确定。
通信装置1500执行上面实施例中图11所示的流程中终端设备的功能时:
处理单元,用于根据寻呼帧偏移值确定第一寻呼帧PF;第一PF与第二PF为相同的PF;所述第一PF为位于无线接入网RAN寻呼周期中的PF,所述第二PF为第二eDRX周期中的寻呼时间窗PTW中的任一PF;通信单元,用于在所述第一PF中监听PO。
通信装置1500执行上面实施例中图11所示的流程中网络设备的功能时:
处理单元,用于根据寻呼帧偏移值确定第一寻呼帧PF;第一PF与第二PF为相同的PF;所述第一PF为位于无线接入网RAN寻呼周期中的PF,所述第二PF为第二eDRX周期中的寻呼时间窗PTW中的任一PF;通信单元,用于当确定寻呼终端设备时,在第一PF中调度寻呼消息。
以上只是示例,处理单元1501和通信单元1502还可以执行其他功能,更详细的描述可以参考图5至11所示的方法实施例中相关描述,这里不加赘述。
如图16所示为本申请实施例提供的装置1600,图16所示的装置可以为图15所示的装置的一种硬件电路的实现方式。该通信装置可适用于前面所示出的流程图中,执行上述方法实施例中终端设备或者网络设备的功能。为了便于说明,图16仅示出了该通信装置的主要部件。
如图16所示,通信装置1600包括处理器1610和接口电路1620。处理器1610和接口电路1620之间相互耦合。可以理解的是,接口电路1620可以为收发器或输入输出接口。可选的,通信装置1600还可以包括存储器1630,用于存储处理器1610执行的指令或存储处理器1610运行指令所需要的输入数据或存储处理器1610运行指令后产生的数据。
当通信装置1600用于实现图3至6所示的方法时,处理器1610用于实现上述处理单元1501的功能,接口电路1620用于实现上述通信单元1502的功能。
当上述通信装置为应用于终端设备的芯片时,该终端设备芯片实现上述方法实施例中终端设备的功能。该终端设备芯片从终端设备中的其它模块(如射频模块或天线)接收信息,该信息是网络设备发送给终端设备的;或者,该终端设备芯片向终端设备中的其它模块(如射频模块或天线)发送信息,该信息是终端设备发送给网络设备的。
当上述通信装置为应用于网络设备的芯片时,该网络设备芯片实现上述方法实施例中 网络设备的功能。该网络设备芯片从网络设备中的其它模块(如射频模块或天线)接收信息,该信息是终端设备发送给网络设备的;或者,该网络设备芯片向网络设备中的其它模块(如射频模块或天线)发送信息,该信息是网络设备发送给终端设备的。
可以理解的是,本申请的实施例中的处理器可以是中央处理单元(Central Processing Unit,CPU),还可以是其它通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field Programmable Gate Array,FPGA)或者其它可编程逻辑器件、晶体管逻辑器件,硬件部件或者其任意组合。通用处理器可以是微处理器,也可以是任何常规的处理器。
本申请的实施例中处理器可以是随机存取存储器(Random Access Memory,RAM)、闪存、只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息。当然,存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外,该ASIC可以位于网络设备或终端设备中。处理器和存储介质也可以作为分立组件存在于网络设备或终端设备中。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (48)

  1. 一种通信方法,其特征在于,所述方法应用于终端设备,包括:
    根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,根据第二eDRX周期确定第二PH;其中,所述第一PH包括第一寻呼时间窗PTW,所述第二PH包括第二PTW;
    在所述第一PTW,以及所述第二PTW中监听寻呼时机PO;
    其中,若所述第一PH与所述第二PH为同一个PH,所述第一PTW在所述第一PH中的起始位置根据所述第一eDRX周期和偏移值确定。
  2. 根据权利要求1所述的方法,其特征在于,所述第一PTW,与所述第二PTW在时域上存在重叠。
  3. 根据权利要求1或2所述的方法,其特征在于,所述偏移值为第二参数值与第一参数值之间的差值;
    其中,所述第二参数值是根据所述终端设备的标识与所述第二eDRX周期确定的;所述第一参数值是根据所述终端设备的标识与所述第一eDRX周期确定的。
  4. 根据权利要求3所述的方法,其特征在于,所述第二参数值用于确定所述第二PTW的起始位置对应的系统帧号SFN;
    所述第一参数值用于确定第三PTW的起始位置对应的SFN,所述第三PTW为根据所述第一eDRX周期在所述第一PH中确定的PTW。
  5. 根据权利要求1或2所述的方法,其特征在于,所述偏移值大于第一门限值,且小于第二门限值;
    其中,所述第一门限值为所述第二PTW的起始位置对应的SFN与第三PTW的结束位置对应的SFN之间的差值,所述第二门限值为所述第二PTW的结束位置对应的SFN与所述第三PTW的起始位置对应的SFN之间的差值;所述第三PTW为根据所述第一eDRX周期在所述第一PH中确定的PTW。
  6. 根据权利要求1至5任一所述的方法,其特征在于,所述方法还包括:
    所述第一eDRX周期,所述第二eDRX周期和/或所述偏移值来自网络设备。
  7. 根据权利要求1至6任一所述的方法,其特征在于,所述方法还包括:
    若所述第一PH与所述第二PH为不同的PH,所述第一PTW在所述第一PH中的起始位置根据所述第一eDRX周期确定。
  8. 根据权利要求1至7任一所述的方法,其特征在于,所述根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,包括:
    根据第一eDRX周期和PH偏移值确定所述第一PH,所述PH偏移值根据所述第一eDRX周期和所述第二eDRX周期确定。
  9. 一种通信方法,其特征在于,所述方法应用于网络设备,包括:
    根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,根据第二eDRX周期确定第二PH;其中,所述第一PH包括第一寻呼时间窗PTW,所述第二PH包括第二PTW;
    当确定寻呼终端设备时,在所述第一PTW和/或所述第二PTW内调度寻呼消息;
    其中,若所述第一PH与所述第二PH为同一个PH,所述第一PTW在所述第一PH中的起始位置根据所述第一eDRX周期和偏移值确定。
  10. 根据权利要求9所述的方法,其特征在于,所述第一PTW,与所述第二PTW在时 域上存在重叠。
  11. 根据权利要求9或10所述的方法,其特征在于,所述偏移值为第二参数值与第一参数值之间的差值;
    其中,所述第二参数值是根据所述终端设备的标识与所述第二eDRX周期确定的;所述第一参数值是根据所述终端设备的标识与所述第一eDRX周期确定的。
  12. 根据权利要求11所述的方法,其特征在于,所述第二参数值用于确定所述第二PTW的起始位置对应的系统帧号SFN;
    所述第一参数值用于确定第三PTW的起始位置对应的SFN,所述第三PTW为根据所述第一eDRX周期在所述第一PH中确定的PTW。
  13. 根据权利要求9或10所述的方法,其特征在于,所述偏移值大于第一门限值,且小于第二门限值;
    其中,所述第一门限值为所述第二PTW的起始位置对应的SFN与第三PTW的结束位置对应的SFN之间的差值,所述第二门限值为所述第二PTW的结束位置对应的SFN与所述第三PTW的起始位置对应的SFN之间的差值;所述第三PTW为根据所述第一eDRX周期在所述第一PH中确定的PTW。
  14. 根据权利要求9至13任一所述的方法,其特征在于,所述第一eDRX周期,所述第二eDRX周期和/或所述偏移值来自所述网络设备。
  15. 根据权利要求9所述的方法,其特征在于,所述方法还包括:
    若所述第一PH与所述第二PH为不同的PH,所述第一PTW在所述第一PH中的起始位置根据所述第一eDRX周期确定。
  16. 根据权利要求9至15任一所述的方法,其特征在于,所述根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,包括:
    根据第一eDRX周期和PH偏移值确定所述第一PH,所述PH偏移值根据所述第一eDRX周期和所述第二eDRX周期确定。
  17. 一种通信方法,其特征在于,所述方法应用于终端设备,包括:
    根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,根据第二eDRX周期确定第二PH;其中,所述第一PH包括第一寻呼时间窗PTW,所述第二PH包括第二PTW;
    在所述第一PTW,以及所述第二PTW中监听寻呼时机PO;其中,若所述第一PH与所述第二PH为同一个PH,所述第一PTW的起始位置以及所述第二PTW的起始位置均根据所述第一eDRX周期值确定,或者所述第一PTW的起始位置以及所述第二PTW的起始位置均根据所述第二eDRX周期值确定。
  18. 一种通信方法,其特征在于,所述方法应用于网络设备,包括:
    根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,根据第二eDRX周期确定第二PH;其中,所述第一PH包括第一寻呼时间窗PTW,所述第二PH包括第二PTW;
    当确定寻呼终端设备时,在第一寻呼时间窗PTW和/或第二PTW内调度寻呼消息;
    其中,若所述第一PH与所述第二PH为同一个PH,所述第一PTW的起始位置以及所述第二PTW的起始位置均根据所述第一eDRX周期值确定,或者所述第一PTW的起始位置以及所述第二PTW的起始位置均根据所述第二eDRX周期值确定。
  19. 一种通信方法,其特征在于,所述方法应用于终端设备,包括:
    根据寻呼帧偏移值确定第一寻呼帧PF;
    所述第一PF与第二PF为相同的PF;所述第一PF为位于无线接入网RAN寻呼周期中的PF,所述第二PF为第二eDRX周期中的寻呼时间窗PTW中的任一PF;
    在所述第一PF中监听寻呼时机PO。
  20. 根据权利要求19所述的方法,其特征在于,所述寻呼帧偏移值为所述第二PF的帧号与第三PF的帧号之间的差值;所述第三PF为根据所述RAN寻呼周期确定的PF。
  21. 一种通信方法,其特征在于,所述方法应用于网络设备,包括:
    根据寻呼帧偏移值确定第一寻呼帧PF;
    所述第一PF与第二PF为相同的PF;所述第一PF为位于无线接入网RAN寻呼周期中的PF,所述第二PF为第二eDRX周期中的寻呼时间窗PTW中的任一PF;
    当确定寻呼终端设备时,在第一PF中调度寻呼消息。
  22. 根据权利要求21所述的方法,其特征在于,所述寻呼帧偏移值为所述第二PF的帧号与第三PF的帧号之间的差值;所述第三PF为根据所述RAN寻呼周期确定的PF。
  23. 一种通信装置,其特征在于,包括:
    处理单元,用于根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,根据第二eDRX周期确定第二PH;其中,所述第一PH包括第一寻呼时间窗PTW,所述第二PH包括第二PTW;
    通信单元,用于在所述第一PTW,以及所述第二PTW中监听寻呼时机PO;
    其中,若所述第一PH与所述第二PH为同一个PH,所述第一PTW在所述第一PH中的起始位置根据所述第一eDRX周期和偏移值确定。
  24. 根据权利要求23所述的装置,其特征在于,所述第一PTW,与所述第二PTW在时域上存在重叠。
  25. 根据权利要求23或24所述的装置,其特征在于,所述偏移值为第二参数值与第一参数值之间的差值;
    其中,所述第二参数值是根据所述终端设备的标识与所述第二eDRX周期确定的;所述第一参数值是根据所述终端设备的标识与所述第一eDRX周期确定的。
  26. 根据权利要求25所述的装置,其特征在于,所述第二参数值用于确定所述第二PTW的起始位置对应的系统帧号SFN;
    所述第一参数值用于确定第三PTW的起始位置对应的SFN,所述第三PTW为根据所述第一eDRX周期在所述第一PH中确定的PTW。
  27. 根据权利要求23或24所述的装置,其特征在于,所述偏移值大于第一门限值,且小于第二门限值;
    其中,所述第一门限值为所述第二PTW的起始位置对应的SFN与第三PTW的结束位置对应的SFN之间的差值,所述第二门限值为所述第二PTW的结束位置对应的SFN与所述第三PTW的起始位置对应的SFN之间的差值;所述第三PTW为根据所述第一eDRX周期在所述第一PH中确定的PTW。
  28. 根据权利要求23至27任一所述的装置,其特征在于,所述第一eDRX周期,所述第二eDRX周期和/或所述偏移值来自所述网络设备。
  29. 根据权利要求23至28任一所述的装置,其特征在于,若所述第一PH与所述第二PH为不同的PH,所述第一PTW在所述第一PH中的起始位置根据所述第一eDRX周期 确定。
  30. 根据权利要求23至29任一所述的装置,其特征在于,所述处理单元具体用于:
    根据第一eDRX周期和PH偏移值确定所述第一PH,所述PH偏移值根据所述第一eDRX周期和所述第二eDRX周期确定。
  31. 一种通信装置,其特征在于,包括:
    处理单元,用于根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,根据第二eDRX周期确定第二PH;其中,所述第一PH包括第一寻呼时间窗PTW,所述第二PH包括第二PTW;
    通信单元,用于当确定寻呼终端设备时,在所述第一PTW和/或所述第二PTW内调度寻呼消息;
    其中,若所述第一PH与所述第二PH为同一个PH,所述第一PTW在所述第一PH中的起始位置根据所述第一eDRX周期和偏移值确定。
  32. 根据权利要求31所述的装置,其特征在于,所述第一PTW,与所述第二PTW在时域上存在重叠。
  33. 根据权利要求31或32所述的装置,其特征在于,所述偏移值为第二参数值与第一参数值之间的差值;
    其中,所述第二参数值是根据所述终端设备的标识与所述第二eDRX周期确定的;所述第一参数值是根据所述终端设备的标识与所述第一eDRX周期确定的。
  34. 根据权利要求33所述的装置,其特征在于,所述第二参数值用于确定所述第二PTW的起始位置对应的系统帧号SFN;
    所述第一参数值用于确定第三PTW的起始位置对应的SFN,所述第三PTW为根据所述第一eDRX周期在所述第一PH中确定的PTW。
  35. 根据权利要求31或32所述的装置,其特征在于,所述偏移值大于第一门限值,且小于第二门限值;
    其中,所述第一门限值为所述第二PTW的起始位置对应的SFN与第三PTW的结束位置对应的SFN之间的差值,所述第二门限值为所述第二PTW的结束位置对应的SFN与所述第三PTW的起始位置对应的SFN之间的差值;所述第三PTW为根据所述第一eDRX周期在所述第一PH中确定的PTW。
  36. 根据权利要求31至35任一所述的装置,其特征在于,所述第一eDRX周期,所述第二eDRX周期和/或所述偏移值来自所述装置。
  37. 根据权利要求31所述的装置,其特征在于,若所述第一PH与所述第二PH为不同的PH,所述第一PTW在所述第一PH中的起始位置根据所述第一eDRX周期确定。
  38. 根据权利要求31至37任一所述的装置,其特征在于,所述处理单元具体用于:
    根据第一eDRX周期和PH偏移值确定所述第一PH,所述PH偏移值根据所述第一eDRX周期和所述第二eDRX周期确定。
  39. 一种通信装置,其特征在于,包括:
    处理单元,用于根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,根据第二eDRX周期确定第二PH;其中,所述第一PH包括第一寻呼时间窗PTW,所述第二PH包括第二PTW;
    通信单元,用于在所述第一PTW,以及所述第二PTW中监听寻呼时机PO;其中, 若所述第一PH与所述第二PH为同一个PH,所述第一PTW的起始位置以及所述第二PTW的起始位置均根据所述第一eDRX周期值确定,或者所述第一PTW的起始位置以及所述第二PTW的起始位置均根据所述第二eDRX周期值确定。
  40. 一种通信装置,其特征在于,包括:
    处理单元,用于根据第一扩展的非连续接收eDRX周期确定第一寻呼超帧PH,根据第二eDRX周期确定第二PH;其中,所述第一PH包括第一寻呼时间窗PTW,所述第二PH包括第二PTW;
    通信单元,用于当确定寻呼终端设备时,在第一寻呼时间窗PTW和/或第二PTW内调度寻呼消息;
    其中,若所述第一PH与所述第二PH为同一个PH,所述第一PTW的起始位置以及所述第二PTW的起始位置均根据所述第一eDRX周期值确定,或者所述第一PTW的起始位置以及所述第二PTW的起始位置均根据所述第二eDRX周期值确定。
  41. 一种通信装置,其特征在于,包括:
    处理单元,用于根据寻呼帧偏移值确定第一寻呼帧PF;
    所述第一PF与第二PF为相同的PF;所述第一PF为位于无线接入网RAN寻呼周期中的PF,所述第二PF为第二eDRX周期中的寻呼时间窗PTW中的任一PF;
    通信单元,用于在所述第一PF中监听寻呼时机PO。
  42. 根据权利要求41所述的装置,其特征在于,所述寻呼帧偏移值为所述第二PF的帧号与第三PF的帧号之间的差值;所述第三PF为根据所述RAN寻呼周期确定的PF。
  43. 一种通信装置,其特征在于,包括:
    处理单元,用于根据寻呼帧偏移值确定第一寻呼帧PF;
    所述第一PF与第二PF为相同的PF;所述第一PF为位于无线接入网RAN寻呼周期中的PF,所述第二PF为第二eDRX周期中的寻呼时间窗PTW中的任一PF;
    通信单元,用于当确定寻呼终端设备时,在第一PF中调度寻呼消息。
  44. 根据权利要求43所述的装置,其特征在于,所述寻呼帧偏移值为所述第二PF的帧号与第三PF的帧号之间的差值;所述第三PF为根据所述RAN寻呼周期确定的PF。
  45. 一种通信装置,其特征在于,包括处理器和存储器:
    所述处理器,用于执行所述存储器中存储的计算机程序或指令,当所述处理器执行所述计算机程序或指令时,如权利要求1至22中任意一项所述的方法被执行。
  46. 一种芯片,其特征在于,包括处理器,所述处理器与存储器耦合,用于执行所述存储器中存储的计算机程序或指令,当所述处理器执行所述计算机程序或指令时,如权利要求1至22中任意一项所述的方法被执行。
  47. 一种计算机可读存储介质,其特征在于,存储有指令,当所述指令在计算机上运行时,使得所述计算机执行如权利要求1至22中任意一项所述的方法。
  48. 一种计算机程序产品,其特征在于,存储有计算机可读指令,当通信装置读取并执行所述计算机可读指令,使得所述通信装置执行如权利要求1至22中任一项所述的方法。
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