WO2023029925A1

WO2023029925A1 - Communication method and related apparatus

Info

Publication number: WO2023029925A1
Application number: PCT/CN2022/111618
Authority: WO
Inventors: 张战战; 铁晓磊; 周涵; 黄雯雯; 花梦
Original assignee: 华为技术有限公司
Priority date: 2021-09-01
Filing date: 2022-08-11
Publication date: 2023-03-09
Also published as: CN115734321A

Abstract

The present application provides a communication method and a related apparatus. In the technical solution of the present application, a terminal device determines a first SSB, the first SSB carrying first information, the first information being used to indicate whether paging of the terminal device exists in a first PO, the first SSB comprising SSBs in an Nth SS burst set before the first PO, and N being a positive integer and configured by a network device or preset by a protocol, or the first SSB comprising SSBs in a first SS burst set located before the first PO, the interval between the first SS burst set and the first PO being the shortest and said interval being greater than or equal to a first duration, and the first duration being configured by a network device or preset by a protocol; the terminal device receives the first SSB and acquires the first information; and if the first information indicates that the paging of the terminal device does exist in the first PO, then same monitors the paging of a PDCCH in the first PO. In the method, the position of the SSB carrying the first information is clarified, so that the terminal device and the network device may be aligned and understood.

Description

Communication method and related device

This application claims priority to a Chinese patent application filed with the State Intellectual Property Office of China on September 1, 2021, with application number 202111023107.4, and application title "Communication Method and Related Devices", the entire contents of which are hereby incorporated by reference in this application .

technical field

The present application relates to the communication field, in particular to a communication method and a related device.

Background technique

When the user equipment (user equipment, UE) is in the radio resource control (radio resource control, RRC) idle or inactive (idle/inactive) state, it will wake up and monitor the paging information at the paging occasion (PO), for example Monitor a physical downlink control channel (physical downlink control channel, PDCCH). The PDCCH monitored at the PO may also be called a paging PDCCH. However, not every PO will have UE paging information. Therefore, in order to prevent the UE from waking up in POs without paging information and monitor the paging PDCCH to save UE power consumption, those skilled in the art have proposed the following technical solutions: base station Send indication information to the UE, indicating whether there is paging information in the PO; if the indication information indicates that there is paging information in the PO, the UE wakes up in the PO to monitor the paging PDCCH; if the indication information indicates that the PO has no paging information, the UE The PO continues to be in sleep state to save power.

At present, the base station sends the indication information indicating whether there is a UE paging to the UE, which is usually carried by an existing channel (such as a paging PDCCH) or a new channel/signal, which will increase resource overhead, reduce resource utilization efficiency, and The power consumption of the terminal equipment is increased. Therefore, how to indicate whether there is UE paging in the PO, improve resource utilization efficiency, and save UE power consumption has become a technical problem to be solved urgently.

Contents of the invention

The present application provides a communication method and a related device. The technical solution of the present application can save resource overhead, improve resource utilization efficiency, and reduce device power consumption.

In the first aspect, the embodiment of the present application provides a communication method, the method includes: a terminal device determines a first SSB, the first SSB carries first information, and the first information is used to indicate Whether there is paging of the terminal device at the paging time PO, the first SSB includes the SSB in the Nth synchronization signal SS burst set before the first PO, N is a positive integer and is configured by the network device or the protocol preset; or, the first SSB includes an SSB in a first SS burst set, the first SS burst set is located before the first PO, and the first SS burst set is connected to the first SS burst set The interval between POs is greater than or equal to the first duration, and the first SS burst set is the SS burst set with the shortest interval between the first PO, and the first duration is configured by the network device or Protocol preset; the terminal device receives the first SSB, and obtains the first information from the first SSB; if the first information indicates that the terminal device exists in the first PO paging, the terminal device monitors a paging physical downlink control channel PDCCH at the first PO.

In this method, through network device configuration or protocol preset related parameters, the terminal device determines the position of the SSB that carries the first information, and specifies when the terminal device listens to the first information, so that the network device and the terminal device are aligned and understood, and the The method is simple to implement and can save the cost of terminal equipment. In addition, by periodically sending the SSB to carry the first information, it is possible to avoid adding new channels/signals to carry the first information, which can save resource overhead and avoid a reduction in resource utilization efficiency. The terminal device only needs to receive the SSB to obtain the first information. It avoids receiving other channels/signals, and can save the power consumption of the terminal equipment.

With reference to the first aspect, in a possible implementation manner, the method further includes: the terminal device receiving indication information sent from the network device, where the indication information is used to indicate the Whether the first information element in the payload of the PBCH is redefined; if it is indicated to be redefined, the first information element represents the first information.

In this implementation, the terminal device receives the indication information sent by the network device about whether the first cell in the payload of the PBCH included in the first SSB is redefined, clarifies the function of the first cell, and multiplexes the original The cell clearly defines the load of the PBCH, without introducing new signaling bits, which saves signaling overhead.

In a second aspect, the embodiment of the present application provides a communication method, the method includes: a network device determines a first SSB, the first SSB carries first information, and the first information is used to indicate Whether there is paging of the terminal device at the paging occasion PO, the first SSB includes the SSB in the Nth synchronization signal SS burst set before the first PO, and N is a positive integer and is configured by the network device or preset by the protocol. set; or, the first SSB includes the SSB in the first SS burst set, the first SS burst set is located before the first PO, and the first SS burst set and the first PO The interval between them is greater than or equal to the first duration, and the first SS burst set is the SS burst set with the shortest interval with the first PO, and the first duration is configured by the network device or the protocol Preset; the network device sends the first SSB.

In this method, through network device configuration or protocol preset related parameters, the network device determines the position of the SSB carrying the first information, and sends the SSB to the terminal device, so that the network device and the terminal device can be aligned and understood.

With reference to the second aspect, in a possible implementation manner, the method further includes: the network device sending indication information to the terminal device, where the indication information is used to indicate the PBCH included in the first SSB Whether the first information element in the payload is redefined; if it is indicated to be redefined, the first information element represents the first information.

In this implementation, the network device sends to the terminal device indication information about whether the first cell in the PBCH payload included in the first SSB has been redefined, which clarifies the function of the first cell, and reuses the original cell The definition of the load of the PBCH is not clear, and no new signaling bits need to be introduced, which saves signaling overhead.

With reference to the first aspect or the second aspect, in a possible implementation manner, the first SSB includes the Nth SS burst set to the N+M-1th SS burst set before the first PO The SSB in the transmission set, or, the first SSB includes the SSB in the N-M+1th SS burst set to the Nth SS burst set before the first PO, and the M is greater than or A positive integer equal to 2.

With reference to the first aspect or the second aspect, in a possible implementation manner, the first SSB includes at least one SSB in M1 consecutive SS burst sets, and each SS in the M1 consecutive SS burst sets The burst set is located before the first PO, and the interval between each SS burst set and the first PO is greater than or equal to the first duration, and the M1 consecutive SS burst sets An SS burst set that is before the first PO, and whose interval with the first PO is greater than or equal to the first duration, and whose interval with the first PO is the shortest.

In the third aspect, the embodiment of the present application provides a communication method, the method includes: a terminal device determines a first SSB, the first SSB carries first information, and the first information is used to indicate Whether there is paging of the terminal device at the paging occasion PO, the first SSB includes at least one SSB in the first time window before the first PO; the starting position of the first time window is the same as the The interval between the first POs is equal to the second duration, and the interval between the end position of the first time window and the first PO is equal to the third duration; or, the start position of the first time window and the first PO are equal to the third duration; The interval between the first PO is equal to the second duration, and the length of the first time window is the fourth duration; or, the interval between the end position of the first time window and the first PO is equal to the third duration, the length of the first time window is the fourth duration; the terminal device receives the first SSB, and obtains the first information from the first SSB; if the first information indicates that the If there is paging of the terminal device at the first PO, the terminal device monitors a paging physical downlink control channel PDCCH at the first PO.

In this method, through network device configuration or protocol preset related parameters, the terminal device determines the position of the SSB that carries the first information, and specifies when the terminal device listens to the first information, so that the network device and the terminal device are aligned and understood, and the The method is simple to implement and can save the cost of terminal equipment. In addition, by periodically sending the SSB to carry the first information, new channels/signals can be avoided to carry the first information, resource overhead can be saved, resource utilization efficiency can be avoided, and the terminal device can obtain the first information only by receiving the SSB. It avoids receiving other channels/signals, and can save the power consumption of the terminal equipment.

With reference to the third aspect, in a possible implementation manner, the method further includes: the terminal device receiving indication information sent from the network device, the indication information being used to indicate the PBCH included in the first SSB Whether the first information element in the payload is redefined; if it is indicated to be redefined, the first information element represents the first information.

In a fourth aspect, the embodiment of the present application provides a communication method, the method includes: a network device determines a first SSB, and the first SSB carries first information, and the first information is used to indicate that in the first Whether there is paging of the terminal device at the paging occasion PO, the first SSB includes at least one SSB in the first time window before the first PO; the starting position of the first time window is the same as the first The interval between POs is equal to a second duration, and the interval between the end position of the first time window and the first PO is equal to a third duration; or, the start position of the first time window is equal to the first PO The interval between one PO is equal to the second duration, and the length of the first time window is the fourth duration; or, the interval between the end position of the first time window and the first PO is equal to the third duration, The length of the first time window is a fourth time length; the network device sends the first SSB.

With reference to the fourth aspect, in a possible implementation manner, the method further includes: the network device sending indication information to the terminal device, where the indication information is used to indicate the PBCH included in the first SSB Whether the first information element in the payload is redefined; if it is indicated to be redefined, the first information element represents the first information.

In the fifth aspect, the embodiment of the present application provides a communication method, the method comprising: a terminal device receives configuration information sent from a network device, and the configuration information is used to configure reference signal resources; the terminal device receives configuration information from the network device The first SSB sent by the device, where the first SSB carries second information, and the second information is used to indicate the availability status of at least one of the configured reference signal resources; if according to the second The information determines that the availability status of at least one of the reference signal resources is available, and then the terminal device receives the reference signal on part or all of the reference signal resources whose availability status is available in the reference signal resources.

In this method, since the SSB is sent periodically, and the second information carried in the first SSB is used to indicate the availability status of at least one of the configured reference signal resources, the network device can determine the reference signal resource more flexibly according to this method. The transmission of the signal notifies the terminal device in time whether the reference signal resource is available, which can save resource overhead, improve resource utilization, and reduce power consumption of the network device; in addition, this method can also save power consumption of the terminal device.

With reference to the fifth aspect, in a possible implementation manner, the method further includes: the terminal device receiving indication information sent from the network device, where the indication information is used to indicate that the first SSB includes Whether the first information element in the payload of the PBCH is redefined; if it is indicated to be redefined, the first information element represents the second information.

In a sixth aspect, the embodiment of the present application provides a communication method, the method includes: a network device sends configuration information to a terminal device, where the configuration information is used to configure reference signal resources; the network device sends a second A synchronous broadcast block SSB, where the first SSB carries second information, and the second information is used to indicate the availability status of at least one of the configured reference signal resources; if it is determined according to the second information that the If the available state of at least one of the reference signal resources is available, the network device sends the reference signal on the reference signal resource whose available state is available among the reference signal resources.

In this method, since the SSB is sent periodically, and the second information carried in the first SSB is used to indicate the availability status of at least one of the configured reference signal resources, the network device can determine the reference signal resource more flexibly according to this method. The transmission of the signal notifies the terminal equipment in time whether the reference signal resource is available, which can save resource overhead, improve resource utilization, and reduce power consumption of network equipment.

With reference to the sixth aspect, in a possible implementation manner, the method further includes: the network device sending indication information to the terminal device, where the indication information is used to indicate the PBCH included in the first SSB Whether the first information element in the payload is redefined; if it is indicated to be redefined, the first information element represents the second information.

With reference to the fifth aspect or the sixth aspect, in a possible implementation manner, the first SSB is located in a second time window, at least one of the reference signal resources is located in a third time window, and the third The time window is located after the second time window, the second time window and the third time window are two adjacent time windows among the multiple time windows included in the periodic time window, and the second time window The length of the window and the length of the third time window are equal to the period of the periodic time window.

With reference to the fifth aspect or the sixth aspect, in a possible implementation manner, the first SSB is located in a second time window, at least one of the reference signal resources is located in the second time window, and the The second time window is any one of the multiple time windows included in the periodic time window, and the length of the second time window is equal to the period of the periodic time window.

With reference to the fifth aspect or the sixth aspect, in a possible implementation manner, at least one of the reference signal resources is located in a fourth time window; wherein, the start time of the fourth time window is the same as the start time of the first The end time of an SSB is the same, or, the start time of the fourth time window is the same as the end time of the SS burst set in which the first SSB is located, or, the start time of the fourth time window is the same as the end time of the The start time of the time slot where the first SSB is located is the same, or, the start time of the fourth time window is the same as the end time of the time slot where the first SSB is located, or, the start time of the fourth time window is The start time is the same as the start time of the next time slot of the time slot where the first SSB is located, or the fourth time window is located after the first SSB and the start time of the fourth time window is the same as The interval between the first SSBs is equal to the fifth duration, or the start time of the fourth time window is located after the first SSB and before the first paging occasion PO, and the first SSB is located in the Before the first PO, the first PO is a PO determined by the terminal device for monitoring a paging physical downlink control channel PDCCH.

In a seventh aspect, the embodiment of the present application provides a communication method, the method includes: a terminal device receives a first SSB sent from a network device, the first SSB carries third information, and the third information Used to indicate the period of the second SSB; according to the period of the second SSB, the terminal device receives the second SSB.

In this method, since the SSB itself is sent periodically, the first SSB is the currently received SSB, the second SSB is the subsequent SSB of the current SSB, and the third information carried by the first SSB indicates the change of the second SSB cycle, so , the network device can change the SSB period more flexibly and in a timely manner, which can save resource overhead, improve resource utilization efficiency, and reduce power consumption of the network device. In addition, this method can also save power consumption of the terminal device.

With reference to the seventh aspect, in a possible implementation manner, the method further includes: the terminal device receiving indication information sent from the network device, where the indication information is used to indicate that the first SSB includes Whether the first information element in the payload of the PBCH is redefined; if it is indicated to be redefined, the first information element represents the third information.

In an eighth aspect, the embodiment of the present application provides a communication method, the method includes: a network device sends a first SSB to a terminal device, the first SSB carries third information, and the third information is used for Indicates the period of the second SSB; according to the period of the second SSB, the network device sends the second SSB.

In this method, since the SSB itself is sent periodically, the first SSB is the currently received SSB, the second SSB is the subsequent SSB of the current SSB, and the third information carried by the first SSB indicates the change of the second SSB cycle, so , the network device can change the SSB period more flexibly and in a timely manner, which can save resource overhead, improve resource utilization efficiency, and reduce power consumption of the network device.

With reference to the eighth aspect, in a possible implementation manner, the method further includes: the network device sending indication information to the terminal device, where the indication information is used to indicate the PBCH included in the first SSB Whether the first information element in the payload is redefined; if it is indicated to be redefined, the first information element represents the third information.

With reference to the seventh aspect or the eighth aspect, in a possible implementation manner, the first SSB is located in the fifth time window, the second SSB is located in the sixth time window, and the sixth time window is located in the After the fifth time window, the fifth time window and the sixth time window are two adjacent time windows among the multiple time windows included in the periodic time window, and the length of the fifth time window and The length of the sixth time window is equal to the period of the periodic time window.

With reference to the seventh aspect or the eighth aspect, in a possible implementation manner, the first SSB is located within a fifth time window, and the second SSB is located after the fifth time window and before the sixth time window , the sixth time window is located after the fifth time window, the fifth time window and the sixth time window are two adjacent time windows among the multiple time windows included in the periodic time window, The length of the fifth time window is the same as the length of the sixth time window, and is smaller than the period of the periodic time window.

In the ninth aspect, the embodiment of the present application provides a communication device, which includes: a determining module, configured for a terminal device to determine a first simulcast broadcast block SSB, where the first SSB carries first information, and the first information is used for Indicates whether there is paging of the terminal device at the first paging occasion PO, the first SSB includes the SSB in the Nth synchronization signal SS burst set before the first PO, N is a positive integer and is the network Device configuration or protocol preset; or, the first SSB includes the SSB in the first SS burst set, the first SS burst set is located before the first PO, and the first SS burst set The interval with the first PO is greater than or equal to a first duration, and the first SS burst set is the SS burst set with the shortest interval with the first PO, and the first duration is Configured by the network device or preset by the protocol; the receiving module is used for the terminal device to receive the first SSB and obtain the first information from the first SSB; the monitoring module is used for if the first SSB If information indicates that there is paging of the terminal device at the first PO, the terminal device monitors a paging physical downlink control channel PDCCH at the first PO.

With reference to the ninth aspect, in a possible implementation manner, the receiving module is further configured for the terminal device to receive indication information sent from the network device, where the indication information is used to indicate that the first SSB includes Whether the first information element in the payload of the PBCH is redefined; if redefinition is indicated, the first information element represents the first information.

In a tenth aspect, the embodiment of the present application provides a communication device, the device comprising: a determining module, configured for a network device to determine a first SSB, the first SSB carries first information, and the first information uses In order to indicate whether there is paging of the terminal device at the first paging occasion PO, the first SSB includes the SSB in the Nth synchronization signal SS burst set before the first PO, and N is a positive integer and is a network device Configured or preset by the protocol; or, the first SSB includes the SSB in the first SS burst set, the first SS burst set is located before the first PO, and the first SS burst set and The interval between the first POs is greater than or equal to a first duration, and the first SS burst set is the SS burst set with the shortest interval between the first POs, and the first duration is the network Configured by the device or preset by the protocol; a sending module, configured for the network device to send the first SSB.

With reference to the tenth aspect, in a possible implementation manner, the sending module is further configured for the network device to send indication information to the terminal device, where the indication information is used to indicate the PBCH included in the first SSB Whether the first information element in the payload is redefined; if redefinition is indicated, the first information element represents the first information.

With reference to the ninth aspect or the tenth aspect, in a possible implementation manner, the first SSB includes the Nth SS burst set to the N+M-1th SS burst set before the first PO The SSB in the transmission set, the first SSB includes the SSB in the N-M+1th SS burst set to the Nth SS burst set before the first PO, and the M is greater than or equal to 2 positive integer of .

With reference to the ninth aspect or the tenth aspect, in a possible implementation manner, the first SSB includes at least one SSB in M1 consecutive SS burst sets, and each SS in the M1 consecutive SS burst sets The burst set is located before the first PO, and the interval between each SS burst set and the first PO is greater than or equal to the first duration, and the M1 consecutive SS burst sets An SS burst set that is before the first PO, and whose interval with the first PO is greater than or equal to the first duration, and whose interval with the first PO is the shortest.

In an eleventh aspect, the embodiment of the present application provides a communication device, the device comprising: a determining module, configured for a terminal device to determine a first simulcast broadcast block SSB, the first SSB carrying first information, and the first information Used to indicate whether there is paging of the terminal device at the first paging occasion PO, the first SSB includes at least one SSB in the first time window before the first PO; the first time window The interval between the starting position and the first PO is equal to a second duration, and the interval between the end position of the first time window and the first PO is equal to a third duration; or, the first time window The interval between the starting position of the first PO and the first PO is equal to the second duration, and the length of the first time window is the fourth duration; or, the distance between the end position of the first time window and the first PO The interval between is equal to the third time length, and the length of the first time window is the fourth time length; the receiving module is used for the terminal device to receive the first SSB, and obtain the first SSB from the first SSB information; a monitoring module, configured to, if the first information indicates that there is paging of the terminal device at the first PO, the terminal device monitors a paging physical downlink control channel PDCCH at the first PO.

With reference to the eleventh aspect, in a possible implementation manner, the receiving module is further configured for the terminal device to receive indication information sent from a network device, where the indication information is used to indicate that the first SSB includes Whether the first information element in the payload of the PBCH is redefined; if it is indicated to be redefined, the first information element represents the first information.

In a twelfth aspect, the embodiment of the present application provides a communication device, the device includes: a determining module, configured for a network device to determine a first simulcast broadcast block SSB, the first SSB carries first information, and the first information Used to indicate whether there is paging of the terminal device at the first paging occasion PO, the first SSB includes at least one SSB in the first time window before the first PO; the start of the first time window The interval between the position and the first PO is equal to a second duration, the interval between the end position of the first time window and the first PO is equal to a third duration; or, the start of the first time window The interval between the start position and the first PO is equal to the second duration, and the length of the first time window is the fourth duration; or, the distance between the end position of the first time window and the first PO The interval is equal to the third duration, and the length of the first time window is the fourth duration; a sending module, configured for the network device to send the first SSB.

With reference to the twelfth aspect, in a possible implementation manner, the sending module is further configured to: the network device sends indication information to the terminal device, where the indication information is used to indicate that the first SSB includes Whether the first information element in the payload of the PBCH is redefined; if redefinition is indicated, the first information element represents the first information.

In a thirteenth aspect, the embodiment of the present application provides a communication device, which includes: a receiving module, configured for a terminal device to receive configuration information sent from a network device, where the configuration information is used to configure reference signal resources; the receiving module The module is also used for the terminal device to receive the first SSB sent by the network device, the first SSB carries second information, and the second information is used to indicate that in the configured reference signal resource The available status of at least one of the reference signal resources; if it is determined according to the second information that the available status of at least one of the reference signal resources is available, the available status of the terminal device in the reference signal resources is an available reference signal resource Some or all of the received reference signals.

With reference to the thirteenth aspect, in a possible implementation manner, the receiving module is further configured for the terminal device to receive indication information sent from the network device, where the indication information is used to indicate that in the first SSB Whether the first information element included in the payload of the PBCH is redefined; if it is indicated to be redefined, the first information element represents the second information.

In a fourteenth aspect, the embodiment of the present application provides a communication device, the device including: a sending module, configured to send configuration information from a network device to a terminal device, where the configuration information is used to configure reference signal resources; the sending module further Used for the network device to send a first simulcast broadcast block SSB to the terminal device, where the first SSB carries second information, and the second information is used to indicate at least one of the configured reference signal resources Available state: if it is determined according to the second information that the available state of at least one of the reference signal resources is available, the network device sends a reference signal on a reference signal resource whose available state is available among the reference signal resources .

With reference to the fourteenth aspect, in a possible implementation manner, the sending module is further configured for the network device to send indication information to the terminal device, where the indication information is used to indicate the Whether the first information element in the payload of the PBCH is redefined; if it is indicated to be redefined, the first information element represents the second information.

With reference to the thirteenth aspect or the fourteenth aspect, in a possible implementation manner, the first SSB is located in a second time window, at least one of the reference signal resources is located in a third time window, and the The third time window is located after the second time window, the second time window and the third time window are two adjacent time windows among the multiple time windows included in the periodic time window, the first time window The length of the second time window and the length of the third time window are equal to the period of the periodic time window.

With reference to the thirteenth aspect or the fourteenth aspect, in a possible implementation manner, the first SSB is located in a second time window, and at least one of the reference signal resources is located in the second time window, The second time window is any one of multiple time windows included in the periodic time window, and the length of the second time window is equal to the period of the periodic time window.

With reference to the thirteenth aspect or the fourteenth aspect, in a possible implementation manner, at least one of the reference signal resources is located in a fourth time window; wherein, the start time of the fourth time window is the same as the The end time of the first SSB is the same, or, the start time of the fourth time window is the same as the end time of the SS burst set in which the first SSB is located, or, the start time of the fourth time window The same as the start time of the time slot where the first SSB is located, or, the start time of the fourth time window is the same as the end time of the time slot where the first SSB is located, or, the fourth time window The start time of the window is the same as the start time of the next time slot of the time slot where the first SSB is located, or, the fourth time window is located after the first SSB and the start time of the fourth time window is The interval between the time and the first SSB is equal to the fifth duration, or the start time of the fourth time window is located after the first SSB and before the first paging occasion PO, and the first SSB is located at Before the first PO, the first PO is a PO determined by the terminal device for monitoring a paging physical downlink control channel PDCCH.

In a fifteenth aspect, the embodiment of the present application provides a communication device, the device comprising: a receiving module, configured for a terminal device to receive a first SSB sent from a network device, and the first SSB carries third information , the third information is used to indicate the period of the second SSB; the receiving module is further configured to receive the second SSB by the terminal device according to the period of the second SSB.

With reference to the fifteenth aspect, in a possible implementation manner, the receiving module is further configured for the terminal device to receive indication information sent from the network device, where the indication information is used to indicate that in the first SSB Whether the first information element in the included PBCH payload is redefined; if it is indicated to be redefined, the first information element represents the third information.

In a sixteenth aspect, the embodiment of the present application provides a communication device, the device comprising: a sending module, configured for a network device to send a first SSB to a terminal device, where the first SSB carries third information, the The third information is used to indicate the cycle of the second SSB; the sending module is further configured to send the second SSB by the network device according to the cycle of the second SSB.

With reference to the sixteenth aspect, in a possible implementation manner, the sending module is further configured for the network device to send indication information to the terminal device, where the indication information is used to indicate the Whether the first information element in the payload of the PBCH is redefined; if it is indicated to be redefined, the first information element represents the third information.

With reference to the fifteenth aspect or the sixteenth aspect, in a possible implementation manner, the first SSB is located in a fifth time window, the second SSB is located in a sixth time window, and the sixth time window Located after the fifth time window, the fifth time window and the sixth time window are two adjacent time windows among the multiple time windows included in the periodic time window, and the fifth time window's length and the length of the sixth time window is equal to the period of the periodic time window.

With reference to the fifteenth aspect or the sixteenth aspect, in a possible implementation manner, the first SSB is located within a fifth time window, and the second SSB is located after the fifth time window and at a sixth time Before the time window, the sixth time window is located after the fifth time window, and the fifth time window and the sixth time window are two adjacent time windows among the multiple time windows included in the periodic time window window, the length of the fifth time window is the same as the length of the sixth time window, and is smaller than the period of the periodic time window.

In a seventeenth aspect, the embodiment of the present application provides a communication device, the communication device includes at least one processor and a memory, the processor is coupled to the memory, the memory stores program instructions, and when the memory stores When the program instructions are executed by the processor, the communication device executes the method described in any one of the first aspect to the eighth aspect or any one of the possible implementation manners.

In an eighteenth aspect, an embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium is used to store program instructions executed by a computer, and the program instructions include instructions for executing the first aspect to the eighth aspect. Instructions of the method described in any one of the aspects or any one of the possible implementations.

In a nineteenth aspect, an embodiment of the present application provides a computer program product, the computer program product includes computer program instructions, and when the computer program instructions are run on a computer, the computer implements the first aspect to the first aspect. The method described in any one of the eight aspects or any one of the possible implementations.

Description of drawings

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

FIG. 2 is a schematic diagram of a time-frequency structure of an SSB provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of a PO within a paging DRX cycle of a UE provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of UE states before and after the introduction of PEI provided by an embodiment of the present application;

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

FIG. 6 is a schematic diagram of the SSB in the third SS burst set before the first PO provided by an embodiment of the present application and the first PO;

FIG. 7 is a schematic diagram of association of SSBs in the SS burst set with the first PO before the first PO and with the shortest interval between the first PO and the interval greater than or equal to the first duration provided by an embodiment of the present application;

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

FIG. 9 is a schematic diagram of SSBs in two consecutive SS burst sets associated with the first PO starting from the third SS burst set before the first PO provided by an embodiment of the present application;

Figure 10 shows the SSBs associated with the first PO in two consecutive SS bursts before the first PO and including the shortest interval between the first PO and the interval greater than or equal to the first duration provided by an embodiment of the present application. schematic diagram;

FIG. 11 is a flowchart of a communication method provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of the association between the SSB and the first PO within the first time window provided by an embodiment of the present application;

FIG. 13 is a flowchart of a communication method provided by another embodiment of the present application;

FIG. 14 is a schematic diagram of an SSB associated with multiple POs provided by an embodiment of the present application;

FIG. 15 is a flowchart of an exemplary communication method provided by an embodiment of the present application;

FIG. 16 is a flowchart of a communication method provided by an embodiment of the present application;

FIG. 17 is a flowchart of a communication method provided by another embodiment of the present application;

FIG. 18 is a schematic diagram of a time window period equal to the length of the time window provided by an embodiment of the present application;

FIG. 19 is a schematic diagram of an SSB having a period and a reference signal having a period provided by an embodiment of the present application;

FIG. 20 is a schematic diagram of the second information carried by the SSB in the third SS burst set before the PO used to indicate the available state of the reference signal resource in the fourth time window according to an embodiment of the present application;

FIG. 21 is a flowchart of a communication method provided by an embodiment of the present application;

FIG. 22 is a flowchart of a communication method provided by another embodiment of the present application;

FIG. 23 is a schematic diagram in which the period of the time window is equal to the length of the time window provided by another embodiment of the present application;

FIG. 24 is a schematic diagram of a period in which the third information carried by the SSB in the fifth time window indicates the SSB in the sixth time window according to another embodiment of the present application;

FIG. 25 is a schematic diagram of another embodiment of the present application in which the period of the time window is greater than the length of the time window;

FIG. 26 is a schematic diagram of a cycle of an SSB that is located after the fifth time window and before the sixth time window, in which the third information carried by the SSB within the fifth time window is provided by another embodiment of the present application;

FIG. 27 is a schematic block diagram of a communication device provided by an embodiment of the present application;

Fig. 28 is a schematic block diagram of a communication device provided by another embodiment of the present application;

FIG. 29 is a schematic block diagram of a communication device provided in another embodiment of the present application;

FIG. 30 is a schematic block diagram of a communication device provided in another embodiment of the present application;

FIG. 31 is a schematic block diagram of a communication device provided in another embodiment of the present application;

Fig. 32 is a schematic block diagram of a communication device provided in another embodiment of the present application;

FIG. 33 is a schematic block diagram of a communication device provided in another embodiment of the present application;

FIG. 34 is a schematic block diagram of a communication device provided in another embodiment of the present application;

Fig. 35 is a schematic block diagram of a communication device provided by another embodiment of the present application.

Detailed ways

FIG. 1 is a schematic structural diagram of a mobile communication system applied in an embodiment of the present application. As shown in FIG. 1 , the mobile communication system includes a network device 110 and at least one terminal device (such as the terminal device 120 in FIG. 1 ). In this communication system, the network device 110 sends information to the terminal device 120 through a downlink channel, and the terminal device 120 sends information to the network device 110 through an uplink channel. The terminal device 120 may be fixed or mobile.

It can be understood that the numbers of network devices and terminal devices shown in FIG. 1 are only an example. In an actual process, the number of network devices and terminal devices may also be other numbers. Of course, the communication system may also include other network elements, for example, may also include core network equipment, and the network equipment may be connected to the core network equipment. It is noted here that the specific forms of the network device and the terminal device are not limited in the embodiment of the present application.

Exemplarily, the network device 110 is a device for a terminal device to wirelessly access a mobile communication system, and may be a base station eNB (evolved node B), an evolved base station (evolved NodeB, eNodeB), a transmission reception point (transmission reception point) , TRP), the next generation base station (next generation NodeB, gNB) in the fifth generation mobile communication system, the base station in the future mobile communication system or the access point in the wireless fidelity (wireless fidelity, WiFi) system, etc.; also can It is a module or unit that completes some functions of the base station, for example, it can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU). The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device 110 .

Exemplarily, the terminal device 120 may be a device that provides voice and/or data connectivity to users, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and the like. Terminal equipment can also be called UE, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, wireless telecommunications equipment, user agent, user equipment, or user device. The terminal device can be a station (station, STA) in a wireless local area network (wireless local area networks, WLAN), and can be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop) loop, WLL) stations, personal digital assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems ( For example, the terminals in the fifth generation mobile communication system (5th generation, 5G) network or the terminal equipment in the public land mobile network (public land mobile network, PLMN) network that will evolve in the future, etc., this embodiment of the present application does not limited.

The embodiments of the present application can also be applied to the Internet of Vehicles, such as vehicle to everything (V2X), long term evolution-vehicle (LTE-V) of vehicle communication, and vehicle-to-vehicle (vehicle-to-vehicle, V2V) etc.

In the embodiment of the present application, the terms UE and terminal device may be interchanged, and the terms base station and network device may also be interchanged.

Communication between the network device 110 and the terminal device 120 may be performed through a licensed spectrum, or through an unlicensed spectrum, or through both a licensed spectrum and an unlicensed spectrum. The communication between the network device 110 and the terminal device 120 may be performed through a frequency spectrum below 6 GHz (gigahertz, GHZ), or may be performed through a frequency spectrum above 6 GHZ, or may be performed using both a frequency spectrum below 6 GHZ and a frequency spectrum above 6 GHZ. communication. The embodiments of the present application do not limit the frequency spectrum resources used between the network device and the terminal device.

It is understandable that the fifth-generation mobile communication system 5G is committed to supporting higher system performance, and will support multiple service types, different deployment scenarios and a wider spectrum range. Among them, the above-mentioned multiple service types include enhanced mobile broadband (eMBB), massive machine type communication (MMTC), ultra-reliable and low latency communications (URLLC), Multimedia broadcast multicast service (multimedia broadcast multicast service, MBMS) and positioning services, etc. Different deployment scenarios include indoor hotspot, dense urban, suburban, urban macro coverage (Urban Macro), and high-speed rail scenarios. A wider spectrum range means that 5G will support a spectrum range up to 100GHz, which includes both the low-frequency part below 6GHz and the high-frequency part above 6GHz up to 100GHz.

Specifically, the embodiments of the present application are mainly applied to all capability-limited UEs in the 5G new air interface (new radio, NR) system, for example, machine type communication (machine type communication, MTC)/narrow band (narrow band, NB) UE and Reduced capability (reduced capability, RedCap) UE, etc. Among them, the maximum bandwidth capability of NR RedCap UE in low frequency FR1 is 20MHz, and the maximum bandwidth capability in high frequency FR2 is 100MHz. In general, the capability of NR eMBB UE supports a bandwidth of 100MHz in FR1 and a bandwidth of 200MHz in FR2, and the bandwidth of 400MHz in FR2 is optional. The bandwidth capability supported by NR RedCap UE is smaller than that of existing NR UE (such as eMBB UE), and the smaller bandwidth capability can reduce the complexity of UE implementation, save UE power consumption, and help reduce UE cost.

The currently considered NR RedCap UE includes three major application scenarios: wearables, industrial wireless sensors and video surveillance equipment.

In 5G, the SSB includes a synchronization signal and a broadcast channel. Specifically, the synchronization signal includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), and the broadcast channel is PBCH.

One SSB occupies 4 consecutive orthogonal frequency division multiplexing (OFDM) symbols in the time domain, and occupies 20 consecutive resource blocks (RBs) in the frequency domain. The first symbol of SSB is PSS, the third symbol is SSS, and both PSS and SSS occupy 127 subcarriers. PBCH is distributed in the 2nd to 4th symbols of SSB. In the 2nd and 4th symbols, PBCH occupies 240 subcarriers. On both sides of the SSS of the 3rd symbol, there are a part of resource elements (resource element, RE) not used. The positions of subcarriers occupied by PSS, SSS and PBCH in one SSB are shown in Fig. 2 .

Under different subcarriers, the frequency domain bandwidth of SSB is shown in Table 1 below:

Table 1

SSB子载波间隔(KHz)SSB subcarrier spacing (KHz)	SSB频域带宽(20个RBs)(MHz)SSB frequency domain bandwidth (20 RBs) (MHz)
15KHz15KHz	3.63.6
30KHz30KHz	7.27.2
120KHz120KHz	28.828.8
240KHz240KHz	57.657.6

The SSB can be divided into a defined cell SSB (cell-defining SSB, CD-SSB) and a non-cell-defining SSB (non-cell-defining SSB, non-CD-SSB). If an SSB is associated with a remaining minimum system information (RMSI), such an SSB is called a CD-SSB. CD-SSB will correspond to 1 cell, and this cell will have a unique NR cell global identifier (NR cell global identifier, NCGI).

Specifically, the system information is cell-level information, that is, valid for all UEs accessing the cell. System information can be divided into main system module (master information block, MIB) information and multiple system information blocks (system information block, SIB), each system information contains a series of parameter sets related to a certain function.

Further explanation of CD-SSB: PBCH will carry MIB information, and MIB information is used to indicate a set of control resource sets associated with the physical downlink control channel search space type (Type0-physical downlink control channel common search space, Type0-PDCCH CSS) Whether (control-resource set, CORESET) exists, such a CORESET is called CORESET#0. If the MIB information indicates that CORESET#0 exists, it means that the SSB is a CD-SSB; the UE can monitor and schedule the PDCCH of SIB1 in CORESET#0, and SIB1 is the RMSI; PDCCH is used to schedule the physical downlink shared channel (physical downlink shared channel, PDSCH ), the PDSCH is used to bear SIB1. If the MIB indicates that CORESET#0 does not exist, it means that the SSB is non-CD-SSB, that is, non-CD-SSB is not associated with RMSI.

Specifically, the payload of the PBCH includes information for indicating subcarrier offset k _SSB . When Lmax=4 or 8, the information indicating k _SSB has 5 bits. When Lmax=64, it indicates The k _SSB information has 4 bits, where Lmax represents the maximum number of SSBs in one SSB cycle, and according to the value of k _SSB , the UE can determine whether the SSB is a CD-SSB.

According to the 3rd generation partnership project (3GPP) agreement, 5G networks mainly use two frequency bands: FR1 frequency band and FR2 frequency band. The frequency range of FR1 frequency band is 450MHz to 6GHz, also known as sub 6GHz frequency band, low frequency; the frequency range of FR2 frequency band is 24.25GHz to 52.6GHz, commonly known as millimeter wave, high frequency.

According to the value of k _SSB , the specific conditions for the UE to determine whether the SSB is a CD-SSB are shown in Table 2 below:

Table 2

As mentioned above, SSB is composed of PSS, SSS and PBCH, and PBCH is used to carry system information.

It is explained here that the information carried by PBCH includes PBCH paylaod, and PBCH paylaod includes high-level signaling MIB (23 bits in total), and information of 8 bits other than MIB; in addition, high-level signaling also includes 1 bit , that is, broadcast control channel-broadcast channel-messagetype (broadcast control channel-broadcast channel-messagetype, BCCH-BCH-MessageType), used to indicate whether the high-level RRC message carried by the PBCH is MIB or other types. The PBCH payload includes a total of 32 bits, as shown in Table 3 below:

table 3

So far, messageClassExtension in BCCH-BCH-MessageType has not been defined.

Specifically, the signaling included in the MIB is shown in Table 4 below:

Table 4

The non-high-level signaling in the PBCH payload is as follows: This part of the payload is the load in the PBCH payload except the MIB, not the high-level signaling. This part includes a total of 8 bits, mainly related to timing. The specific signaling content is shown in Table 5.

table 5:

The first function of the SSB is cell access: receive MIB information through the SSB, thereby obtaining the SIB1 associated with the SSB, and accessing the cell. Since SSB includes PSS and SSS, and PBCH includes PBCH DMRS, SSB can also be used for UE to perform time-frequency tracking (or time-frequency synchronization), beam management, radio resource management (radio resource management, RRM) measurement, wireless link Listening (radio link monitoring, RLM) measurement, channel state information (channel state information, CSI) measurement, etc.

3GPP defines certain frequencies as synchronization raster (sync raster), CD-SSB is located in sync raster, and non-CD-SSB may or may not be located in sync raster. When the UE initially accesses, it must first select a cell, and the UE will search for the SSB on the sync raster. If the CD-SSB is found on the sync raster, the UE may select the cell corresponding to the CD-SSB as the initial access cell, and at the same time The RMSI associated with the CD-SSB (ie SIB1) will also be received. When receiving SIB1, the UE needs to monitor the PDCCH scrambled by the system information Radio Network Temporary Identifier (SI-RNTI) on the CORESET#0 and Type0-PDCCH CSS indicated by the MIB carried by the SSB. The PDCCH scrambled by the RNTI will schedule the PDSCH carrying the SIB1. Wherein, Type0-PDCCH CSS is also called: search space 0 (or search space set 0, or search space set with ID 0).

An SS burst set represents a set of one or more SSBs. An SS burst set is located in the first half frame or the second half frame of a radio frame. The period of the SSB can also be regarded as the period of the SS burst set. The maximum number of SSBs Lmax included in one SS burst set indicates the number of SSBs that the network device may send in one SS burst set, and the number of SSBs actually sent in one SS burst set is less than or equal to Lmax. Lmax is related to the frequency range. For example, when the carrier frequency is FR1 and less than or equal to 3GHz, Lmax=4; when the carrier frequency is FR1 and greater than 3GHz, Lmax=8; when the carrier frequency is FR2, Lmax=64.

The bandwidth supported by the NR RedCap UE mentioned above is small. In order to solve data congestion and improve system capacity, a part of the bandwidth (bandwidth part, BWP) (frequency range) configured for RedCap UE may not include CD-SSB. For example, when there are many RedCap UEs and NR normal UEs, in order to balance the data offloading, the network device may configure two initial downlink BWPs (initial DL BWP), one for NR normal UE, one for RedCap UE. After the initial access, for example, in the RRC connection state, the network device may also configure a BWP that does not include CD-SSB for the RedCap UE. Wherein, NR normal UE includes other NR UEs except RedCap UE, for example, NR eMBB UE.

In addition, there may be other factors that cause the BWP configured by the network device for the RedCap UE to not include CD-SSB. For example, in a time division duplex (time division duplex, TDD) system, since the eMBB UE has a relatively high bandwidth capability, for example, FR1 supports a radio frequency bandwidth capability of 100MHz. Therefore, the bandwidth of the initial uplink BWP configured by the network device for the eMBB UE may exceed the maximum bandwidth capability supported by the RedCap UE. In order to support the uplink transmission of RedCap UE, so that the data of RedCap UE is within the bandwidth supported by RedCap UE, a new initial uplink BWP may be configured for RedCap UE, and the bandwidth of the new initial uplink BWP should not exceed the bandwidth supported by RedCap UE Maximum bandwidth capability. In a TDD system, an uplink BWP and a downlink BWP form a BWP pair (BWP pair), and their IDs are the same and they have the same center frequency. For example, the initial uplink BWP and the initial downlink BWP are a BWP pair and should have the same center frequency. However, the center frequency of the initial uplink BWP newly introduced for RedCap UE may not be aligned with the initial downlink BWP configured for eMBB UE. The BWP center frequency is aligned, and an initial downlink BWP is newly introduced for RedCap UE, for example, it is called: RedCap-initial DL BWP. Obviously, in order to maintain the center frequency alignment of the initial uplink and downlink BWP of the RedCap UE, the frequency domain range of the initial downlink BWP configured for the RedCap UE may not include CD-SSB.

If the BWP of the RedCap UE does not include CD-SSB, the UE may still need to receive SSB for time-frequency tracking, beam management, RRM measurement, RLM measurement, and/or CSI measurement when the BWP is the active BWP. RedCap UE needs to perform BWP switching or radio frequency (RF) switching when receiving SSB. During RF switching, UE cannot transmit data on the activated BWP, which will cause data interruption. In addition, frequent RF switching of UE will also increase UE power consumption.

The above problem prompts RedCap UE to be configured with other SSBs other than CD-SSB. For example, RedCap UE is configured with SSB for measurement in the initial DL BWP dedicated to RedCap. The SSB for measurement may be non-CD-SSB , or CD-SSB, without limitation.

As mentioned above, SSB is divided into CD-SSB and non-CD-SSB. CD-SSB is mainly used to carry MIB, while non-CD-SSB is not used to determine a cell, so it does not need to carry MIB. The main role of Non-CD-SSB is for UE to perform time-frequency tracking/beam management/RRM measurement/RLM measurement/CSI measurement. It does not require NR normal UE/RedCap UE to initially access through non-CD-SSB. In addition, non - There is no restriction on whether the CD-SSB is located in the sync raster.

In the embodiment of the present application, the information carried by the PBCH payload of non-CD-SSB is mainly reinterpreted to represent some new functions, that is, the PBCH of non-CD-SSB carries indication information to indicate new Function. The non-CD-SSB may not be located in the sync raster, or may be located in the sync raster, without limitation.

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

For PO, here is a detailed explanation:

The network device will configure the paging discontinuous reception (DRX) cycle, and the paging frame (paging frame, PF) in each paging DRX cycle includes the radio frame (radio frame, RF) in the paging DRX cycle The ratio in and the number of POs included in each paging frame. The length of a radio frame is 10 milliseconds, the paging frame is a radio frame, and a PF may contain 1 or more POs or the start of a PO. A PO is a set including one or more PDCCH monitoring occasions (PDCCH monitoring occasions). The number of PDCCH monitoring occasions included in a PO is equal to the number of SSBs actually sent in an SSB cycle, that is, an SS burst set ( SS burst set) includes the number of SSBs actually sent, and the PDCCH monitoring timing for monitoring the paging PDCCH is determined according to the paging search space set.

The paging DRX cycle of the UE is determined according to the default DRX cycle broadcast by the system information and the UE-specific DRX cycle. The UE may be configured with one or more dedicated DRX cycles. The dedicated DRX cycle can be determined by the RRC message of the RRC layer. Configured or configured by upper layers (upper layers) messages (for example, through non-access stratum (non access stratum, NAS) signaling). If the UE is configured with a UE-specific DRX cycle, the UE's paging DRX cycle is equal to the minimum value of the default DRX cycle and the dedicated DRX cycle; otherwise, the UE's paging DRX cycle is equal to the default DRX cycle.

As an example, as shown in FIG. 3 , the paging DRX cycle of the UE is 1.28 seconds, one paging DRX cycle includes 8 paging frames, and each paging frame includes 1 PO. The UE will determine the PO to be monitored according to its UE_ID. Specifically, the UE will determine the PF to monitor the paging PDCCH and which PO to monitor in the PF according to its UE_ID. The PO determined by the UE to monitor the paging PDCCH according to its own UE_ID is called the PO of the UE, or the PO of the UE, or the PO corresponding to the UE. Correspondingly, the UE can also be called a UE on this PO.

For example, in FIG. 3 , UE1 determines to monitor the paging PDCCH at PO1 and PO9. A UE only needs to monitor one PO in a paging DRX cycle. In the RRC idle/inactive state, the UE only monitors the paging PDCCH in its own PO. It should be understood that monitoring the PO means monitoring the paging PDCCH on the PO.

Currently, when the UE is in the RRC idle/inactive state, it will wake up at the PO to monitor paging information, such as monitoring the paging PDCCH. However, not every PO will have UE paging. Therefore, in order to prevent the UE from waking up and listening to paging at POs without paging to save UE power consumption, a paging early indication (paging early indication) is introduced in the current related technology. , PEI), there may also be other names, such as wake-up signal (wake-up signal, WUS). PEI is mainly used to notify the UE in advance whether there is paging information. If there is paging information, the UE will monitor the paging PDCCH at the PO afterwards; if there is no paging information, the UE can enter the sleep state without monitoring the paging PDCCH and wait for the next The DRX cycle wakes up again to monitor the PEI indication.

The specific situation of introducing PEI is shown in Figure 4.

Figure 4(a) shows the behaviors that the UE will perform before the PO monitors the paging PDCCH when the PEI is not introduced, that is, deep sleep, light sleep, state switching between deep sleep and wake-up states, and state switching between light sleep and wake-up states. State switching, in which, the power consumption of UE in deep sleep is lower than that of UE in light sleep; in deep sleep, UE may turn off the baseband processing module and radio frequency transceiver module; in light sleep, UE may turn off the radio frequency transceiver module and some modules in the baseband processing module; in the wake-up state, the UE normally sends and receives data, and the baseband processing module and the radio frequency transceiver module are normally turned on.

Because the UE generally sleeps for a long time before monitoring the paging PDCCH in the RRC idle/inactive state, it generally needs to receive the SSB before monitoring the paging PDCCH for time-frequency synchronization, automatic gain control (automatic gain control, AGC) adjustment, etc. .

Figure 4(b) shows that after the PEI indication is introduced, when the PEI indicates that the UE has no paging information, the UE can directly enter the sleep state to save power consumption.

Furthermore, when a UE is paged, a UE group indication can also be introduced into the PEI to divide multiple UEs listening to a PO into multiple subgroups, and then notify the UEs in the subgroup whether they are paged in units of subgroups . In this way, the false alarm probability of the UE can be reduced, so that the UE can reduce unnecessary reception and decoding of the paging PDCCH/paging PDSCH.

But at present, because PEI is generally not carried by existing channels or signals, it may occupy additional time-frequency resources, increase resource overhead, increase power consumption of network equipment, and reduce resource utilization efficiency; although relevant technical personnel in the field It is proposed that PBCH can be used to carry PEI to indicate whether paging exists, but those skilled in the art have not further pointed out that PEI can be carried by SSBs, and have not indicated which SSBs are carried by them. Therefore, how to determine whether a PO is used to indicate to UE Which SSBs bear the paging PEI has become an urgent problem to be solved.

In view of this, the embodiment of the present application proposes a communication method. By determining the position of the SSB carrying the indication information indicating whether there is paging of the UE in the PO, the method clarifies when the UE monitors the paging information indicating whether the UE exists in the PO. Call indication information, so that the network device and the UE can understand it.

FIG. 5 is a flowchart of a communication method provided by an embodiment of the present application. In the embodiment shown in FIG. 5 , the execution entity executing the communication method is a terminal device. Wherein, the terminal device is, for example, a mobile phone, a software module, a hardware module, a chip or a chip system in a vehicle. This embodiment of the present application does not limit it.

As shown in FIG. 5 , the method provided by the embodiment of the present application includes S501 , S502 and S503 . Each step in the method shown in FIG. 5 will be described in detail below.

S501. The terminal device determines a first SSB, the first SSB carries first information, and the first information is used to indicate whether there is paging of the terminal device at the first paging occasion PO, and the first SSB includes the first The SSB in the Nth synchronization signal SS burst set before PO, N is a positive integer and is configured by the network device or preset by the protocol; or, the first SSB includes the SSB in the first SS burst set, and the The first SS burst set is located before the first PO, the interval between the first SS burst set and the first PO is greater than or equal to the first duration, and the first SS burst set is the same as the first PO The SS burst set with the shortest interval between the first POs, the first duration is configured by the network device or preset by the protocol.

Optionally, the first SSB includes a PBCH, and the PBCH may carry the first information.

Optionally, N is indicated by the network device, for example, through downlink control information (downlink control information, DCI) indication, medium access control control element (medium access control control element, MAC CE) indication or RRC message indication, or by the protocol predefined.

As an optional implementation manner, the first SSB includes the SSB in the Nth SS burst set before the first PO, that is, the PBCH used in the SSB included in the Nth SS burst set before the first PO To carry first information, where the first information is used to indicate whether there is paging of the terminal device at the first PO.

The PBCH carries the first information, which may also be described as the SSB carrying the first information. It should be understood that the SSB carries the first information, and here it means that the PBCH included in the SSB carries the first information.

It can also be considered that the SSB in the Nth SS burst set before the first PO is associated with the first PO, or the PBCH included in the SSB in the Nth SS burst set before the first PO is associated with the first PO. That is, one SSB is associated with one PO, indicating that the first information carried by the SSB is used to indicate whether paging exists on the PO associated with the SSB.

As an example, as shown in FIG. 6 , assuming that the period of the SSB is 20 milliseconds, the SSB in the third SS burst before the first PO is associated with the first PO.

It should be understood that one SS burst may include one or more actually transmitted SSBs, that is, there may be multiple SSBs associated with one PO.

As another optional implementation manner, the first SSB includes the SSB in the first SS burst set, the first SS burst set is located before the first PO, and the interval between the first SS burst set and the first PO is greater than or equal to the first duration, and the first SS burst set is the SS burst set with the shortest interval with the first PO. That is to say, the PBCH included in the SSB in the SS burst set before the first PO and with the shortest interval from the start of the first PO and the interval is greater than or equal to the first duration is used to carry the first information. A message is used to indicate whether there is a paging of the terminal device at the first PO.

It should be understood that the first duration is indicated by the network device, for example, indicated by a DCI, MAC CE or RRC message, or predefined by a protocol.

For example, the protocol stipulates that the first duration is equal to twice the period of the SSB, or the first duration is equal to 20 milliseconds, and so on.

It can also be considered that the SSB in the SS burst set before the first PO and with the shortest interval between the first PO and the interval greater than or equal to the first duration is associated with the first PO, or the SSB before the first PO and between the first PO The PBCH included in the SSB in the SS burst set with the shortest interval and the interval greater than or equal to the first duration is associated with the first PO. That is, one SSB is associated with one PO, indicating that the first information carried by the SSB is used to indicate whether paging exists on the PO associated with the SSB.

As an example, as shown in FIG. 7 , the SSB in the SS burst set before the first PO and with the shortest interval between the first PO and the interval greater than or equal to the first duration is associated with the first PO.

In this step, the terminal device determines the position of the SSB that bears the first information indicating whether there is paging of the UE in the PO, that is, the SSB in the Nth SS burst set before the first PO or before the first PO and with The SSB in the SS burst set with the shortest interval between the start of the first PO and the interval greater than or equal to the first duration specifies when the UE listens to the first information, so that the network device and the terminal device can be aligned and understood.

In one embodiment, the interval between an SS burst set and the first PO is the time interval between the end of the SS burst set and the start of the first PO.

In one embodiment, the interval between an SS burst set and the first PO is the time interval between the end of the SS burst set and the start of the paging frame where the first PO is located.

In one embodiment, the interval between an SS burst set and the first PO is the time between the end of the SS burst set and the start of the first PO in the paging frame where the first PO is located interval.

Wherein, a paging frame may include one or more POs.

S502. The terminal device receives the first SSB, and acquires the first information from the first SSB.

S503. If the first information indicates that there is paging of the terminal device at the first PO, the terminal device monitors a paging PDCCH at the first PO.

Optionally, the terminal device may also receive other SSBs before the first PO for time-frequency synchronization and/or measurement, etc., and these other SSBs are not used to carry the first information.

If the first information indicates that there is no paging of the terminal device at the first PO, the terminal device may enter a sleep state and not monitor the paging PDCCH at the first PO.

In the method of this embodiment, through network device configuration or protocol preset related parameters, the terminal device determines the position of the SSB that carries the first information, and specifies when the terminal device listens to the first information, so that the network device and the terminal device are aligned and understood , and the method is simple to implement and can save the cost of terminal equipment. In addition, by periodically sending the SSB to carry the first information, new channels/signals can be avoided to carry the first information, resource overhead can be saved, resource utilization efficiency can be avoided, and the terminal device can obtain the first information only by receiving the SSB. It avoids receiving other channels/signals, and can save the power consumption of the terminal equipment.

As an optional implementation manner, the terminal device receives indication information sent from the network device, the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined; It is defined that the first information element represents the first information.

Optionally, if the first information element in the load of the PBCH included in the first SSB is not indicated to be redefined, the first information element indicates a traditional function (for example, the functions shown in Table 4 and Table 5) For example, the first information element includes at least one of the following: information elements included in the MIB, for example, systemFrameNumber, SubCarrierSpacingCommon, ssb-SubcarrierOffset, dmrs-TypeA-Position, pdcch-ConfigSIB1, cellBarred, intraFreqReselection, and reserved spare 1 bit; one or more bit fields in the information element not included in the high-layer signaling in the PBCH payload.

FIG. 8 is a flowchart of a communication method provided by another embodiment of the present application. In the embodiment shown in FIG. 8 , the execution subject that executes the communication method is a network device. Wherein, the network device is, for example, a base station, a distributed unit, and the like. This embodiment of the present application does not limit it.

As shown in FIG. 8, the method provided by the embodiment of the present application includes S801 and S802.

S801. The network device determines a first SSB, the first SSB carries first information, and the first information is used to indicate whether there is paging of the terminal device at the first paging occasion PO, and the first SSB includes the first The SSB in the Nth synchronization signal SS burst set before PO, N is a positive integer and is configured by the network device or preset by the protocol; or, the first SSB includes the SSB in the first SS burst set, and the The first SS burst set is located before the first PO, the interval between the first SS burst set and the first PO is greater than or equal to the first duration, and the first SS burst set is the same as the first PO The SS burst set with the shortest interval between the first POs, the first duration is configured by the network device or preset by the protocol.

The method for determining the first SSB in this step is performed by the network device, and the specific content can refer to the method in the above step S501, only need to replace the terminal device in the specific implementation manner in step S501 with a network device.

S802. The network device sends the first SSB.

In this step, after determining the first SSB, the network device sends the first SSB to the terminal device.

As an optional implementation manner, the network device sends indication information to the terminal device, where the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined; if it is indicated to be redefined, The first information element represents the first information.

As an optional implementation manner, the first SSB also includes the SSBs in the Nth SS burst set to the N+M-1th SS burst set before the first PO, or the first SSB includes the first PO From the previous N-M+1th SS burst set to the SSB in the Nth SS burst set, M is a positive integer greater than or equal to 2.

That is to say, starting from the Nth SS burst set before the first PO, counting a total of M consecutive SS burst sets before (that is, farther away from the first PO) or afterward (that is, farther away from the first PO) The PBCH included in the SSBs in a total of M consecutive SS burst sets) is used to carry the first information, and the first information is used to indicate whether there is paging of the terminal device in the first PO.

It should be understood that M may be indicated by a network device, for example, indicated by a DCI, MAC CE or RRC message, or predefined by a protocol, for example, M=2 is predefined by the protocol.

It can also be considered that starting from the Nth SS burst set before the first PO, the SSBs in M consecutive SS burst sets are associated with the first PO, or starting from the Nth SS burst set before the first PO , the PBCHs included in the SSBs in M consecutive SS burst sets are associated with the first PO. That is, one SSB is associated with one PO, indicating that the first information carried by the SSB is used to indicate whether paging exists on the PO associated with the SSB.

As an example, as shown in Figure 9, starting from the third SS burst set before the first PO, counting SSBs in a total of two consecutive SS burst sets towards the end (that is, closer to the first PO) Associated with this first PO.

Optionally, the first SSB further includes at least one SSB in M1 consecutive SS burst sets, each SS burst set in the M1 continuous SS burst sets is located before the first PO, and each SS burst set The interval with the first PO is greater than or equal to the first duration, and M1 consecutive SS bursts are included before the first PO, and the interval with the first PO is greater than or equal to the first duration, and include The set of SS bursts with the shortest interval between the first POs.

That is to say, the PBCH included in the SSB in the M1 consecutive SS burst sets before the first PO and including the shortest interval between the first PO and the interval greater than or equal to the first duration is used to carry the first information, and the first PO A message is used to indicate whether there is a paging of the terminal device at the first PO.

It should be understood that M1 may be indicated by a network device, for example, indicated by a DCI, MAC CE or RRC message, or predefined by a protocol, for example, M1=2 is predefined by the protocol.

It can also be considered that the SSBs in M1 consecutive SS burst sets before the first PO and including the shortest interval between the first PO and the interval greater than or equal to the first duration are associated with the first PO, or the first PO is before and The PBCH included in the SSBs in the M1 consecutive SS burst sets with the shortest interval between the first PO and the interval greater than or equal to the first duration is associated with the first PO. That is, one SSB is associated with one PO, indicating that the first information carried by the SSB is used to indicate whether paging exists on the PO associated with the SSB.

As an example, as shown in FIG. 10 , the SSB in two consecutive SS bursts before the first PO and including the shortest interval between the first PO and the interval greater than or equal to the first duration is associated with the first PO .

Fig. 11 is a flowchart of a communication method provided by an embodiment of the present application. In the embodiment shown in FIG. 11 , the execution entity executing the communication method is a terminal device. Wherein, the terminal device is, for example, a mobile phone, a software module, a hardware module, a chip or a chip system in a vehicle. This embodiment of the present application does not limit this.

As shown in FIG. 11 , the method provided by the embodiment of the present application includes S1101, S1102, and S1103. Each step in the method shown in FIG. 11 will be described in detail below.

S1101. The terminal device determines a first SSB, the first SSB carries first information, and the first information is used to indicate whether there is paging of the terminal device in the first PO, and the first SSB includes the first PO At least one SSB in the first time window; the interval between the start position of the first time window and the first PO is equal to the second duration, and the interval between the end position of the first time window and the first PO Equal to the third duration; or, the interval between the starting position of the first time window and the first PO is equal to the second duration, and the length of the first time window is the fourth duration; or, the first time The interval between the end position of the window and the first PO is equal to the third duration, and the length of the first time window is the fourth duration.

It should be understood that the first SSB includes at least one SSB in the first time window before the first PO, that is, the first SSB includes the PBCH included in at least one SSB in the first time window before the first PO for carrying First information, where the first information is used to indicate whether there is paging of the terminal device at the first PO.

It can also be considered that at least one SSB in the first time window before the first PO is associated with the first PO, or the PBCH included in at least one SSB in the first time window before the first PO is associated with the first PO. That is, one SSB is associated with one PO, indicating that the first information carried by the SSB is used to indicate whether paging exists on the PO associated with the SSB.

Wherein, the first time window may be indicated by the network device, or pre-defined by the protocol; any one of the second time period, the third time period and the fourth time period may also be indicated by the network device, or the protocol is pre-defined, or according to the capability information reported by the UE Or auxiliary information is determined.

It should be understood that the second duration and the third duration, or, the second duration and the fourth duration, or, the third duration and the fourth duration may be used to determine the first time window.

In one embodiment, the interval between the first time window (the start position/end position) and the first PO is the first time window (the start position/end position) and the start position of the first PO time interval between.

In one embodiment, the distance between the first time window (the start position/end position) and the first PO is the distance between the first time window (the start position/end position) and the location where the first PO is located. The time interval between the start of call frames.

In one embodiment, the distance between the first time window (the start position/end position) and the first PO is the distance between the first time window (the start position/end position) and the location where the first PO is located. The time interval between the start of the first PO in a call frame.

Wherein, a paging frame may include one or more POs.

Optionally, the first SSB includes all SSBs in the first time window before the first PO.

As an example, as shown in FIG. 12 , the SSB within the first time window is associated with the first PO.

S1102. The terminal device receives the first SSB, and acquires the first information from the first SSB.

S1103. If the first information indicates that there is paging of the terminal device at the first PO, the terminal device monitors a paging PDCCH at the first PO.

Fig. 13 is a flowchart of a communication method provided by another embodiment of the present application. In the embodiment shown in FIG. 13 , the execution entity executing the communication method is a network device. Wherein, the network device is, for example, a base station, a distributed unit, and the like. The embodiment of the present application does not limit this.

As shown in FIG. 13 , the method provided by the embodiment of the present application includes S1301 and S1302.

S1301. The network device determines the first SSB, the first SSB carries first information, the first information is used to indicate whether there is paging of the terminal device in the first PO, and the first SSB includes the first PO At least one SSB in the first time window; the interval between the start position of the first time window and the first PO is equal to the second duration, and the interval between the end position of the first time window and the first PO Equal to the third duration; or, the interval between the starting position of the first time window and the first PO is equal to the second duration, and the length of the first time window is the fourth duration; or, the first time The interval between the end position of the window and the first PO is equal to the third duration, and the length of the first time window is the fourth duration.

The method for determining the first SSB in this step is performed by the network device, and the specific content can refer to the method in the above step S1101, only need to replace the terminal device in the specific implementation manner in step S1101 with a network device.

S1302. The network device sends the first SSB.

It should be understood that, in the above embodiment, the first PO is a PO determined by the terminal device according to its own UE_ID for monitoring the paging physical downlink control channel PDCCH.

Optionally, one SSB may also be associated with multiple POs. For example, as shown in Figure 14, one PF includes 2 POs, and the SSB in SS burst set 1 in Figure 14 is associated with both PO1 and PO2. For example, the information carried by the PBCH includes 2 bits, the first bit is used to indicate whether there is paging at PO1, and the second bit is used to indicate whether there is paging at PO2.

It should be understood that one SS burst set may include multiple actually transmitted SSBs, therefore, one SS burst set may simultaneously have multiple SSBs associated with one PO. In this application, the first information carried by different SSBs in the same SS burst set associated with a PO is the same. For example, an SS burst set includes two actually transmitted SSBs, SSB1 and SSB2, and the first information carried by these two SSBs either indicates that there is paging in the first PO, or both indicate that there is no paging in the first PO. The UE does not expect that the first information carried by one of the SSBs indicates that there is paging at the first PO, while the first information carried by the other SSB indicates that there is no paging at the first PO.

If multiple SS burst sets are associated with one PO, for example, both SS burst set 1 and SS burst set 2 are associated with PO1, then an implementation manner is that the first information carried by all SSBs associated with PO1 is the same . In this way, the UE only needs to choose to receive the SSB in any SS burst set to receive the first information, and then it can judge whether there is paging in PO1, which is beneficial for the UE to select the SS burst set in the SS burst set according to its own time-frequency synchronization performance. Whether the SSB in SS burst set 1 is woken up before SS burst set 1 or the SSB in SS burst set 2 is woken up before SS burst set 2 is beneficial to save UE power consumption.

It should be understood that if the first information indicates that there is paging of the terminal device in the first PO, it does not necessarily mean that the terminal device must be paged. Middle) to determine whether the end device is actually paged.

Optionally, there may be multiple UEs monitoring the same PO, and the multiple UEs monitoring the same PO may be divided into multiple UE groups, and for one of the UE groups, the first information may indicate whether the corresponding PO exists For paging of a UE group, if a UE group is indicated to have paging, it indicates that at least one UE in the UE group is paged, and all UEs in the UE group must monitor the paging PDCCH at the corresponding PO.

It should be understood that the first information indicates whether there is paging of the UE in a PO, and may also be expressed as: the first information indicates whether the UE or the UE group to which the UE belongs monitors the PDCCH for paging in the PO.

Further, the first information may also indicate whether there are short messages (short messages) in the PO, and/or whether there is paging PDSCH scheduling information. If there is a short message, the network device will send a paging PDCCH at the PO, and the short message indicator field (short message indicator) in the DCI carried by the paging PDCCH is set to "10" or "11"; if there is PDSCH scheduling information , the network device will send a paging PDCCH at the PO, and the short message indicator field (short message indicator) in the DCI carried by the paging PDCCH is set to "01" or "11", and the DCI carried by the paging PDCCH will include the PDSCH Scheduling information. Wherein, the short message is carried in the DCI carried by the paging PDCCH.

It should be understood that if the first information indicates that there is neither short message nor paging PDSCH scheduling information in the PO, it means that there is no paging in the PO, that is, there is no paging PDCCH and paging PDSCH.

It should be understood that if the first information indicates that there is paging in the PO, it means that there is a paging PDCCH and a paging PDSCH in the PO, or there is only a paging PDCCH and no paging PDSCH.

As an example, assuming that the SSB in the third SS burst set before the first PO is associated with the first PO, the flow chart of this example is shown in FIG. 15 .

S1501. The UE determines that the SSB in the third SS burst set before the first PO is associated with the first PO, and the SSB carries first information, and the first information is used to indicate whether there is paging of the UE in the first PO.

S1502. The UE receives the SSB.

In this step, the UE receives the SSB and obtains first information therefrom. If the first information indicates that there is paging of the UE in the first PO, perform S1503; if the first information indicates that there is no paging of the UE in the first PO, perform S1504.

S1503, the UE monitors the paging PDCCH at the first PO.

It should be understood that the UE may also receive other SSBs before the first PO, for example, the SSBs in the first and second SS burst sets before the first PO.

S1504, the UE enters a sleep state, and does not monitor the paging PDCCH in the first PO.

It should be understood that the UE will continue to monitor the first information at the SSB in the third SS burst set before its own PO after a paging DRX cycle.

Based on the above determination of the position of the SSB carrying the first information, it is clear when the UE listens to the first information, which can make the network device and the UE align and understand; and reinterpret the information carried by the non-CD-SSB PBCH payload, and also It can be used to indicate other functions, such as indicating the available status of reference signal resources.

The availability status of the information indication reference signal carried by the non-CD-SSB PBCH payload will be described in detail below in conjunction with the accompanying drawings.

In the current related technology, the UE can receive the indication information of the reference signal in the RRC idle/inactive state, which is used to indicate whether the reference signal exists or whether the reference signal is available. The reference signal used by the UE when performing time-frequency synchronization/measurement in the RRC idle/inactive state is SSB, but according to the SSB, the UE can only perform coarse time-frequency synchronization, and the accuracy of measurement is not high. Generally, the UE needs to receive multiple SSB (for example, 2 to 3 receptions are required at low SINR) to complete time-frequency synchronization/measurement, which will increase UE power consumption.

Therefore, it is currently discussing that the reference signal resources configured for UEs in RRC connected state will be notified to UEs in RRC idle/inactive state. Since these reference signal resources have already been configured for UEs in RRC connected state, there will be no new resource overhead. . The density and frequency domain width of the reference signal resources configured for the RRC connected UE are generally large, and the UE performs time-frequency synchronization and measurement with high precision accordingly.

The indication information of these reference signals is generally considered to be carried by the PEI, or carried by the DCI/paging PDSCH carried by the paging PDCCH.

However, there may be a situation where the indication information of the reference signal is carried by the Paging DCI/PDSCH. There may be a situation where the UE is not paged and there is no short message. At this time, the network device does not need to send the paging DCI/PDSCH, but in order to send the reference signal The indication information may still need to send the paging DCI/PDSCH, therefore, the indication information of the reference signal carried by the Paging DCI/PDSCH may increase resource overhead. If the network device does not send the indication information of the reference signal, then the UE may not be able to obtain the indication information of the reference signal in time, and the network device may not be able to change the sending status of the reference signal in time, which will increase resource overhead, reduce resource utilization efficiency, and increase Power consumption of large network devices. In addition, because PEI is generally not carried by existing channels or signals, but by newly added channels/signals, the indication information of reference signals carried by PEI may also occupy additional time-frequency resources and increase Resource overhead increases the power consumption of network devices and reduces resource utilization efficiency.

In order to reduce resource overhead, this embodiment of the present application proposes a communication method. In this method, by using SSB to carry indication information to indicate the availability status of reference signal resources, resource overhead can be saved, resource utilization can be improved, and resource utilization can also be saved. UE power consumption.

FIG. 16 is a flowchart of a communication method provided by an embodiment of the present application. In the embodiment shown in FIG. 16 , the execution entity executing the communication method is a terminal device. Wherein, the terminal device is, for example, a mobile phone, a software module, a hardware module, a chip or a chip system in a vehicle. This embodiment of the present application does not limit it.

As shown in FIG. 16 , the method provided by the embodiment of the present application includes S1601, S1602, and S1603. Each step in the method shown in FIG. 16 will be described in detail below.

S1601. The terminal device receives configuration information sent from the network device, where the configuration information is used to configure reference signal resources.

S1602. The terminal device receives the first SSB sent from the network device, where the first SSB carries second information, where the second information is used to indicate an available state of at least one of the configured reference signal resources.

Optionally, the PBCH included in the first SSB may carry the second information.

The PBCH carries the second information, which may also be described as the SSB carrying the second information. It should be understood that the SSB carries the second information, which means that the PBCH included in the SSB carries the second information.

S1603. If it is determined according to the second information that the availability status of at least one of the reference signal resources is available, the terminal device receives reference signals on part or all of the reference signal resources whose availability status is available among the reference signal resources.

In this step, if it is determined according to the second information that at least one of the reference signal resources is unavailable, the terminal device does not receive reference signals on unavailable reference signal resources among the reference signal resources.

As an optional implementation manner, the terminal device receives indication information sent from the network device, the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined; defined, the first information element represents the second information.

Fig. 17 is a flowchart of a communication method provided by another embodiment of the present application. In the embodiment shown in FIG. 17 , the execution entity executing the communication method is a network device. Wherein, the network device is, for example, a base station, a distributed unit, and the like. This embodiment of the present application does not limit it.

As shown in FIG. 17 , the method provided by the embodiment of the present application includes S1701, S1702, and S1703.

S1701. The network device sends configuration information to the terminal device, where the configuration information is used to configure reference signal resources.

S1702. The network device sends a first SSB to the terminal device, where the first SSB carries second information, where the second information is used to indicate an available state of at least one of the configured reference signal resources.

S1703. If it is determined according to the second information that the availability status of at least one of the reference signal resources is available, the network device sends a reference signal on a reference signal resource whose availability status is available among the reference signal resources.

In this step, if it is determined according to the second information that at least one of the reference signal resources is unavailable, the network device does not send a reference signal on the unavailable reference signal resources among the reference signal resources.

As an optional implementation manner, the network device sends indication information to the terminal device, where the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined; if it is indicated to be redefined, Then the first information element represents the second information.

As an optional implementation manner, there is a periodic time window. As shown in FIG. 18 , the period of the time window is equal to the length of the time window.

It should be understood that the period of the time window and the duration of the time window may be predefined by network device configuration or protocol. For example, the period of the time window is equal to the default DRX period, or the paging DRX period of the UE.

It should be understood that the start of each time window (or the start of each cycle) in the periodic time window may be indicated by the network device, or pre-defined by the protocol. For example, the network device may be configured with a cycle offset, which is used to determine the start of each cycle in the cycle time window. Here, the start of each time window in the periodic time window is also the start of each cycle.

As an optional implementation manner, the first SSB is located in the second time window, at least one of the reference signal resources is located in the third time window, the third time window is located after the second time window, and the second time window and the second time window The three time windows are two adjacent time windows among the multiple time windows included in the periodic time window, and the length of the second time window and the length of the third time window are equal to the period of the periodic time window.

At this time, the second information carried by the first SSB in the second time window is used to indicate the availability status of at least one of the reference signal resources in the third time window.

Specifically, as shown in FIG. 19 , the SSB has a certain period, and the reference signal also has a certain period.

Optionally, the second information carried by different SSBs within the second time window is the same.

If the second information indicates that the reference signal resources in the third time window are available, the UE may receive the reference signal on the reference signal resources in the third time window; if the second information indicates that the reference signal resources in the third time window are not available , the UE does not receive the reference signal on the reference signal resource in the second time window.

Optionally, available states of the reference signal resources at different sending opportunities of the reference signal resources in the third time window are the same.

As another optional implementation manner, the first SSB is located in the second time window, at least one of the reference signal resources is also located in the second time window, and the second time window is a plurality of time windows included in the periodic time window For any one of the time windows, the length of the second time window is equal to the period of the periodic time window.

At this time, the second information carried by the first SSB in the second time window is used to indicate the availability status of at least one of the reference signal resources in the second time window.

If the second information indicates that the reference signal resources in the second time window are available, the UE may receive the reference signal on the reference signal resources in the second time window; if the second information indicates that the reference signal resources in the second time window are not available , the UE does not receive the reference signal on the reference signal resource in the second time window.

Optionally, available states of the reference signal resources at different sending opportunities of the reference signal resources in the second time window are the same.

As yet another optional implementation manner, at least one of the reference signal resources is located in a fourth time window; wherein, the start time of the fourth time window is the same as the end time of the first SSB, or, the fourth time The start time of the window is the same as the end time of the SS burst set where the first SSB is located, or, the start time of the fourth time window is the same as the start time of the time slot where the first SSB is located, or, the fourth time window The start time of the window is the same as the end time of the time slot where the first SSB is located, or, the start time of the fourth time window is the same as the start time of the next time slot of the time slot where the first SSB is located, or, the fourth time window The start time of the window is the same as the end time of the half frame where the first SSB is located, or, the start time of the fourth time window is the same as the start time of the half frame where the first SSB is located, or, the start time of the fourth time window The start time is the same as the end time of the time slot where the last SSB included in the SS burst set where the first SSB is located, or, the fourth time window is located after the first SSB and the start time of the fourth time window is after the first SSB The interval between is equal to the fifth duration, or, the fourth time window is located after the first SSB and the interval between the start time of the fourth time window and the last SSB included in the SS burst set where the first SSB is located is equal to the fifth The duration, or the start time of the fourth time window is located after the first SSB and before the first PO, the first SSB is before the first PO, and the first PO is a PO determined by the terminal device for monitoring the paging PDCCH.

Wherein, the end time of an SS burst set is the end time of the last SSB included in the SS burst set.

At this time, the second information carried by the first SSB is used to indicate an available state of at least one of the reference signal resources in the fourth time window.

Wherein, the length of the fourth time window may be indicated by the second information, or pre-indicated/configured by the network device, or pre-defined by the protocol. Optionally, the network device may indicate or pre-define the length of the fourth time window by the protocol, Or, optionally, the network device may indicate or predefine an end time of the fourth time window by agreement. The time domain position of the fourth time window relative to the first SSB may be indicated by a network device, or predefined by a protocol.

The length of the fifth duration may be indicated by a network device, or predefined by a protocol. For example, the fifth duration is related to the processing time of the terminal device on the SSB, and the fifth duration is greater than or equal to the processing time of the terminal device on the SSB. The processing time of the terminal device for the SSB includes at least one of the following: processing time of the PSS/SSS, decoding time of the PBCH, parsing time of the PBCH, and the like.

As an example, the start of the fourth time window is the same as the end of the SS burst set where the first SSB is located, and the end of the fourth time window is the same as the start of the first PO.

As another example, the first SSB is the SSB in the third SS burst set before the first PO, and the start time of the fourth time window is located before the first PO, and is separated from the start time of the first PO by a period of time 1. The length of the fourth time window is duration 2.

Exemplarily, a schematic diagram of this embodiment is shown in FIG. 20 , the second information carried by the SSB in the third SS burst set before the PO is used to indicate the available status of the reference signal resource in the fourth time window.

It should be understood that parameters such as the cycle of reference signal resources and the time-frequency resources used can be pre-configured by network equipment, for example, configured by system messages, such as SIB1, or other SIBs, such as SIB2, or configured by RRC signaling in RRC connected state.

The reference signal includes at least one of the following: channel state information reference signal (CSI-RS), tracking reference signal (tracking reference signal, TRS).

It should be understood that the reference signal resource may be the reference signal resource configured for the UE in the RRC connected state.

The reference signal resources include at least one of the following: periodic reference signal resources, or semi-persistent (semi-persistent) reference signal resources.

For UEs in the RRC connected state, if the network device is configured with periodic reference signal resources, the network device will send reference signals on the periodic reference signal resources without other signaling activation. If the network device is configured with semi-persistent reference signal resources, the network device also needs to activate the semi-persistent reference signal resources through MAC CE signaling, and then the network device will send reference signals on the activated semi-persistent reference signal resources, and in addition , the network device can also deactivate the semi-persistent reference signal resource through MAC CE signaling.

Optionally, the second information indicates the availability status of the reference signal resource, including: the second information indicates that the reference signal resource is available, unavailable, or whether it is available.

It should be understood that the second information indicating that the reference signal resource is available, or unavailable, or whether it is available means that the second information indicates that the availability state of the reference signal resource is available, unavailable, or whether it is available.

Available reference signal resources indicate that the network device will send a reference signal on the reference signal resource. At this time, the UE can receive the reference signal on the reference signal resource, and can perform time-frequency synchronization and/or measurement based on the reference signal.

Reference signal resource unavailable means that the network device does not or may not send reference signals on reference signal resources. At this time, UE does not receive reference signals on reference signal resources, and can realize time-frequency synchronization and/or measurement by receiving SSB.

The second information indicates whether the available state of the reference signal resource is available. For example, in an implementation manner, the second information is used to indicate that some of the reference signal resources in the configured reference signal resources are available and some of the reference signal resources are unavailable. In yet another implementation manner, the second information is used to indicate that all the reference signal resources in the configured reference signal resources are available, or all the reference signal resources are unavailable.

The second information indicates that the available state of the reference signal resource is available. For example, in an implementation manner, the second information is used to indicate that some of the configured reference signal resources are available. Optionally, the protocol predefines or the network device configures the availability status of the reference signal resources that are not indicated by the second information as being available. For example, the available state of the reference signal resources not indicated by the second information as available among the reference signal resources is unavailable.

The second information indicates that the available state of the reference signal resource is unavailable. For example, in an implementation manner, the second information is used to indicate that some of the configured reference signal resources are unavailable. Optionally, the protocol predefines or the network device configures an availability status of reference signal resources that are not indicated as unavailable by the second information. For example, the available state of the reference signal resources not indicated by the second information as unavailable among the reference signal resources is available.

It should be understood that the reference signal resource may be used by the terminal device to perform at least one of the following functions: time-frequency tracking, beam management, RRM measurement, RLM measurement, and CSI measurement.

In this embodiment, since the SSB is sent periodically, the network device can more flexibly determine the sending of the reference signal, and notify the UE of the available status of the reference signal resource in a more timely manner without relying on the PEI/paging PDCCH/paging PDSCH send. Therefore, resource overhead can also be saved, resource utilization efficiency can be improved, and power consumption of network devices can be reduced. In addition, the UE itself needs to receive the SSB, which can prevent the UE from receiving PEI/paging PDCCH/paging PDSCH for the indication information of the reference signal, which reduces the UE process and saves UE power consumption.

In addition, the second information may also indicate the available state of the reference signal resource at the beam granularity.

Those skilled in the art can understand that in the NR system, quasi co-location (quasi co-location, QCL) can be configured between different reference signals, or between different reference signal resources, or between different antenna ports (antenna ports). relation. If two antenna ports have a QCL relationship, it indicates that the large-scale channel fading parameters calculated from one port can infer the large-scale channel fading parameters experienced by the other port, wherein the large-scale channel fading parameters include at least one of the following parameters : delay spread, doppler spread, doppler shift, average gain, average delay or spatial Rx parameters ).

In addition, the QCL relationship can usually be configured through a transmission configuration indication (TCI) state. The TCI state can be associated with one or two reference signals other than the reference signal as the QCL source reference signal, and configure the QCL type between the current reference signal antenna port and the source reference signal. Currently, the NR protocol supports the configuration of four QCL types, namely QCL-TypeA, QCL-TypeB, QCL-TypeC, and QCL-TypeD.

It should be noted that there is a QCL relationship between the two reference signals (or reference signal resources) mentioned in this application, or QCL, which can indicate the QCL between the two reference signals (or reference signal resources). The relationship is one or more of QCL-TypeA, QCL-TypeB, QCL-TypeC or QCL-TypeD.

When the configuration information configures the reference signal resource, the QCL relationship between the reference signal resource and the SSB can be configured.

As an implementation manner, the first SSB carries second information, and the second information is used to indicate an available state of at least one reference signal resource that has a QCL relationship with the first SSB among the configured reference signal resources.

For example, the second information is used to indicate whether a reference signal resource having a QCL relationship with the first SSB among the configured reference signal resources is available.

As an example, an SS burst set includes 2 actually transmitted SSBs, called SSB#0 and SSB#1, and reference signal resources include RS#0 and RS#1, where RS#0 and SSB#0 have QCL RS#1 and SSB#1 have a QCL relationship, the second information carried by SSB#0 is used to indicate the available state of RS#0, and the second information carried by SSB#1 is used to indicate the available state of RS#1.

As an implementation manner, the first SSB carries second information, and the second information is used to indicate at least one reference signal resource that has a QCL relationship with all actually transmitted SSBs included in one SS burst set in the configured reference signal resources available status.

For example, the second information is used to indicate whether reference signal resources having a QCL relationship with all actually transmitted SSBs included in one SS burst set among the configured reference signal resources are available.

As an example, an SS burst set includes 2 actually transmitted SSBs, called SSB#0 and SSB#1, and reference signal resources include RS#0 and RS#1, where RS#0 and SSB#0 have QCL RS#1 and SSB#1 have a QCL relationship, the second information carried by SSB#0 is used to indicate the usable state of RS#0 and the usable state of RS#1 respectively, and the second information carried by SSB#1 is used to respectively Indicates the availability status of RS#0 and the availability status of RS#1.

In addition, implementations such as the effective time of the second information described in the above embodiment are also applicable to this embodiment. For example, the second information is used to indicate whether the reference signal resources in the fourth time window are available, which will not be repeated here.

Indicating the available status of reference signal resources from the beam granularity is beneficial to the terminal equipment to determine the transmission status of the reference signal more flexibly, and also helps the terminal equipment to know the available status of the reference signal resources more accurately, which is conducive to saving network equipment resources and improving Resource utilization efficiency, and reduce UE power consumption.

The above is a reinterpretation of the information carried by the PBCH payload of non-CD-SSB, indicating some new functions, and the new functions may also include indicating the period of SSB.

In the current related technology, the period of the SSB is configured semi-statically. Once the period of the SSB is configured, generally, the network device will not frequently change the period of the SSB.

Currently, the indication information of the SSB cycle is carried by SIB1, or carried by the RRC message in the RRC connected state. If the period of SSB is changed through SIB1, it means that the system information changes, and the network device will update the information of SIB1, and the UE needs to acquire SIB1 again. In addition, currently, the change of the system information is indicated by the DCI carried by the paging PDCCH, that is, in order to change the period of the SSB, the UE needs to receive the paging PDCCH first, and then obtain the system information again. In addition, when the UE is notified of a system information change, it does not know whether SIB1 has changed or other system information blocks (such as SIB2, etc.) have also changed. Therefore, the UE will not only re-acquire SIB1, but also re-acquire SIB2 and other system information blocks. message block.

Therefore, if the period of the CD-SSB changes, the network device not only needs to update the SIB1 information, but also needs to send the paging PDCCH, which will increase resource overhead and power consumption of the network device. Since the UE not only reacquires the SIB1, but also receives the paging PDCCH and obtains other SIBs (such as SIB2, etc.), which will also increase the power consumption of the UE.

If the SSB is non-CD-SSB, the SSB cycle can be changed through the RRC message in the RRC connection state. However, the RRC message is carried by the PDSCH and needs to occupy a large time-frequency resource. If the SSB cycle is changed frequently, it will increase resource overhead. In addition, the UE needs to obtain RRC messages frequently, which also increases the power consumption of the UE.

It can be seen that in the prior art, when the SSB cycle change indication information is carried by the RRC message in the SIB1 or RRC connection state, the SSB cycle cannot be changed frequently. If the SSB cycle is changed frequently, the resource overhead will increase, and the function of the network equipment will be increased. power consumption increases, and UE power consumption increases.

However, non-CD-SSB is mainly used for time-frequency synchronization and measurement, and when UE has less or no business, non-CD-SSB can be a longer period, or even stop sending, which can save resource overhead and reduce network equipment power consumption. However, in the prior art, the period of the SSB may not be changed in time, which will increase resource overhead and increase power consumption of network equipment.

Therefore, the embodiment of the present application proposes a communication method. In this method, by using SSB bearer indication information to indicate the period of SSB, the period of SSB can be more matched with the demand, saving resource overhead, and reducing power consumption of network equipment. In addition, The information carried by the SSB indicates the change of the cycle, and the network replacement device can change the SSB cycle more flexibly and in a timely manner, saving resource overhead.

Fig. 21 is a flowchart of a communication method provided by an embodiment of the present application. In the embodiment shown in FIG. 21 , the execution entity executing the communication method is a terminal device. Wherein, the terminal device is, for example, a mobile phone, a software module, a hardware module, a chip or a chip system in a vehicle. This embodiment of the present application does not limit it.

As shown in FIG. 21 , the method provided by the embodiment of the present application includes S2101 and S2102. Each step in the method shown in FIG. 21 will be described in detail below.

S2101. The terminal device receives the first SSB sent from the network device, where the first SSB carries third information, and the third information is used to indicate a period of the second SSB.

Optionally, the PBCH included in the first SSB may carry the third information.

The PBCH carries the third information, which may also be described as the SSB carrying the third information. It should be understood that the SSB carries the third information, and here it means that the PBCH included in the SSB carries the third information.

S2102. According to the period of the second SSB, the terminal device receives the second SSB.

As an optional implementation manner, the terminal device receives indication information sent from the network device, the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined; It is defined that the first information element represents the third information.

Fig. 22 is a flowchart of a communication method provided by another embodiment of the present application. In the embodiment shown in FIG. 22 , the execution subject that executes the communication method is a network device. Wherein, the network device is, for example, a base station, a distributed unit, and the like. This embodiment of the present application does not limit it.

As shown in FIG. 22, the method provided by the embodiment of the present application includes S2201 and S2202.

S2201. The network device sends a first SSB to the terminal device, where the first SSB carries third information, and the third information is used to indicate a period of the second SSB.

Optionally, the PBCH included in the first SSB may carry the third information.

S2202. According to the period of the second SSB, the network device sends the second SSB.

As an optional implementation manner, the network device sends indication information to the terminal device, where the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined; if it is indicated to be redefined, The first information element represents the third information.

As an optional implementation, there is a periodic time window. As shown in FIG. 23 , the period of the time window is equal to the length of the time window; where the period of the time window can be configured by the network device or predefined by the protocol. For example, the period of the time window is X times the period of the SSB, eg X=20.

It should be understood that the start of each time window (or the start of each cycle) in the periodic time window may be indicated by the network device, or predefined by the protocol. For example, the network device may be configured with a cycle offset, and the cycle offset is used to determine the start of each cycle in the cycle time window. Here, the start of each time window in the cycle time window is also the start of each cycle.

The first SSB is located in the fifth time window, the second SSB is located in the sixth time window, the third information is used to indicate the period of the SSB in the sixth time window, the sixth time window is located after the fifth time window, and the fifth time The window and the sixth time window are two adjacent time windows among the plurality of time windows included in the periodic time window, and the lengths of the fifth time window and the sixth time window are equal to the period of the periodic time window.

As an example, the SSB period in the fifth time window is 20 milliseconds, any SSB in the fifth time window will carry third information, and the third information is used to indicate that the period of the SSB in the sixth time window is 40 milliseconds, The details are shown in Figure 24.

About how to determine the time domain position of the first SSB. Optionally, when the UE first accesses, the network device may not indicate the SSB period, the protocol may stipulate or the UE may assume the default period of the SSB period, for example, the default period is 20 milliseconds, or 160 milliseconds, once the UE receives a SSB, the third information can be received, and then, the UE can determine the period of the SSB in the next time window.

Optionally, the UE may assume that the time-frequency resource position of the SSB is determined according to the default period, and the network device must send the SSB.

As an optional implementation manner, there is a periodic time window, and the period of the time window is longer than the length of the time window, as shown in FIG. 25 .

The period of the time window and the length of the time window can be configured by the network device, for example, configured by SIB1, or predefined by the protocol; for example, the period of the time window is X times the SSB period, such as X=20, and the length of the time window is the SSB period Y times, for example Y=1 or 2.

The first SSB is located in the fifth time window, the second SSB is located after the fifth time window and before the sixth time window, and the third information is used to indicate the period of the SSB after the fifth time window and before the sixth time window , the sixth time window is located after the fifth time window, the fifth time window and the sixth time window are adjacent two time windows in the multiple time windows included in the periodic time window, the length of the fifth time window and the length of the sixth time window The six time windows have the same length and are shorter than the period of the periodic time window.

As an example, the period of the SSB in each time window is 20 milliseconds, that is, the period of the SSB in the fifth time window and the sixth time window is 20 milliseconds, and the fifth time window indicates that after the fifth time window and under The period of the SSB before a time window is 40 milliseconds. Similarly, the sixth time window indicates that the period of the SSB after the sixth time window and before the next time window is 40 milliseconds, as shown in FIG. 26 .

It should be understood that the period of the SSB in each time window can be pre-configured by the network device, for example, the period of the SSB in the time window is indicated by SIB1 signaling, or by DCI (such as DCI scheduling SIB1), MAC CE, other SIBs ( For example, at least one indication in SIB2), RRC signaling in the RRC connected state; or a protocol is predefined, for example, the SSB period in the time window is defined as 20 milliseconds.

It should be understood that each time window may include one or more SSB periods, that is, include one or more SS burst sets.

Optionally, as in the above embodiment, the third information carried by the SSBs in each SS burst set in a periodic time window is the same.

It should be understood that both the first SSB and the second SSB are non-CD-SSB.

Optionally, the first SSB and the second SSB are located on the same carrier.

Optionally, the beam patterns of the first SSB and the second SSB are the same, that is, the number of SSBs actually sent included in one SS burst set is the same, and the SSBs actually sent included in one SS burst set are at The OFDM symbols in a field have the same relative position in the field.

Optionally, the positions of the first SSB and the second SSB are the same in the half frame, for example, both are located in the first half frame or the second half frame of a radio frame.

After the period of the second SSB is determined, the specific time domain position of the second SSB may be determined through an instruction of a network device or determined by a rule defined in advance in a protocol.

Example 1: For different SSB periods, the network device may indicate or predefine the SSB period offsets by agreement, and the SSB period offsets corresponding to different SSB periods may be the same or different. According to the cycle offset of the SSB, the specific time domain position of the second SSB can be determined, for example, the radio frame number and/or half frame position (the first half frame or the second half frame of the radio frame) where the second SSB is located can be determined. For example, if the period of the second SSB is 20 milliseconds, 40 milliseconds, 80 milliseconds, or 160 milliseconds, the corresponding period offset is 0, then the candidate time domain position of the second SSB can be determined according to the following formula: SFN mod(T/10 )=0, where T is the period of the second SSB (in milliseconds), and the SFN satisfying this formula is the candidate time domain position of the second SSB.

Example 2: The network device may indicate or predefine by agreement the time offset of the second SSB relative to a specific moment. For example, the third information carried by the first SSB in the fifth time window is used to indicate the period of the second SSB in the sixth time window, then the specific moment is the start time of the sixth time window, and the network device may indicate or The protocol predefines the time offset between the first SS burst set within the sixth time window and the start time of the sixth time window. In this way, the specific time domain position of the second SSB within the sixth time window can be determined. For example, the third information carried by the first SSB in the fifth time window is used to indicate the period of the second SSB after the fifth time window and before the sixth time window, then the specific moment is the end time of the fifth time window The network device may indicate or pre-define a time offset between the first SS burst set after the fifth time window and before the sixth time window relative to the end time of the fifth time window. In this way, the specific time domain position of the second SSB can be determined.

As an implementation manner, the first SSB carries third information, and the third information is used to indicate whether the second SSB exists.

Example 1: the first SSB is located in the fifth time window, the second SSB is located in the sixth time window, the third information is used to indicate whether the SSB in the sixth time window exists, and the sixth time window is located after the fifth time window, The fifth time window and the sixth time window are two adjacent time windows among the plurality of time windows included in the periodic time window, and the length of the fifth time window and the length of the sixth time window are equal to the period of the periodic time window .

Example 2: The first SSB is located in the fifth time window, the second SSB is located after the fifth time window and before the sixth time window, and the third information is used to indicate that the SSB is located after the fifth time window and before the sixth time window Whether the SSB exists, the sixth time window is located after the fifth time window, the fifth time window and the sixth time window are two adjacent time windows among the multiple time windows included in the periodic time window, and the fifth time window The length is the same as the length of the sixth time window, and is smaller than the period of the periodic time window.

Example 3: The first SSB carries the third information. When the third information is set to the first state, it means that the second SSB does not exist. When the third information is set to the second state, it means that the period of the second SSB is Period#1. When the third information is set to the third state, it indicates that the period of the second SSB is Period#2.

It should be understood that if the third information indicates that the period of the second SSB within a time period is greater than the time period, then the second SSB may not exist within the time period.

In this embodiment, by controlling the time domain period of the SSB, the period of the SSB can be more matched with the demand, which can save the resource overhead of the SSB, improve resource utilization efficiency, and reduce power consumption of network equipment.

Since the SSB itself is sent periodically, the first SSB is the currently received SSB, and the second SSB is the subsequent SSB of the current SSB. The PBCH carried by the SSB indicates the change of the cycle. In this way, the network device can be more flexible and timely Changing the SSB period does not need to indicate the change of the SSB period through the SIB1 or the RRC message in the RRC connection state, which can save resource overhead, improve resource utilization efficiency, and reduce power consumption of network equipment. In addition, it can prevent the UE from executing the system message change process, or prevent the UE from entering the RRC connected state to receive the RRC message indicating the change of the SSB cycle, which can save the power consumption of the UE.

Different embodiments in this application may be combined with each other, for example, any two or three of the first information, second information, and third information mentioned in the above embodiments may be located in the SSB of the same SS burst set, The SSBs may also be located in different SS burst sets; the fifth time window and the sixth time window may also be the same as the second time window and the third time window respectively, which is not limited in this application.

As an example, the first SSB is located in the second time window, at least one of the reference signal resources is located in the third time window, the second SSB is also located in the third time window, and the third time window is located after the second time window , the second time window and the third time window are adjacent two time windows in the plurality of time windows included in the periodic time window, and the length of the second time window and the length of the third time window are equal to that of the periodic time window cycle.

In this example, the second information carried by the first SSB in the second time window is used to indicate the availability status of at least one of the reference signal resources in the third time window, and the third information carried by the first SSB is used to indicate The period of the SSB within the third time window.

As an example, the first SSB includes the SSB in the Nth SS burst set before the first PO, where N is a positive integer and is configured by the network device or preset by the protocol; or, the first SSB includes the first SS burst The SSB in the transmission set, the first SS burst set is located before the first PO, the interval between the first SS burst set and the first PO is greater than or equal to the first duration, and the first SS burst set is the same as The set of SS bursts with the shortest interval between the first POs.

In this example, the first information carried by the first SSB is used to indicate whether there is paging of the terminal device in the first PO, and the second information carried by the first SSB is used to indicate the number of reference signal resources in the fourth time window At least one usable state, wherein, the implementation manner of the fourth time window is as described in the above embodiment, and details are not repeated here.

In this application, as an optional implementation manner, the terminal device receives indication information sent from the network device, where the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined; If redefinition is indicated, the first information element represents the first information, the second information, and/or the third information.

How to redefine the first cell is described as follows.

Example 1: In the high-level signaling in the PBCH payload, if BCCH-BCH-MessageType is set to messageClassExtension, the redefinable first information element includes at least one of the following:

SubCarrierSpacingCommon, ssb-SubcarrierOffset, dmrs-TypeA-Position, pdcch-ConfigSIB1, cellBarred, and 1 bit of reserved spare.

If the first SSB is not located in the sync raster, the 1 bit of intraFreqReselection in the MIB signaling can also be used for redefinition.

If Lmax=4 or 8, that is, the carrier frequency is located at FR1, then bit5, bit6 and bit7 (as described in Table 5) in the information elements included in the non-high layer signaling in the PBCH payload can also be used for redefinition.

Example 2: In the high-level signaling in the PBCH payload, if BCCH-BCH-MessageType is set to mib, and k _SSB is set to 30 in FR1 and 14 in FR2, then the redefinable first information element includes at least one of the following kind:

SubCarrierSpacingCommon, dmrs-TypeA-Position, pdcch-ConfigSIB1, cellBarred, and 1 bit of reserved spare.

If Lmax=4 or 8, that is, the carrier frequency is located at FR1, then bit6 and bit7 (as described in Table 5) in the information elements included in the non-high layer signaling in the PBCH payload can also be used for redefinition.

Example 3: In the high-level signaling in the PBCH payload, if BCCH-BCH-MessageType is set to mib, and k _SSB is set to 30 in FR1, and is set to 14 in FR2, and 8 bits of pdcch-ConfigSIB1 are set to the first state, The first state is one of the states from 0 to 255, and the redefinable first information element includes at least one of the following:

SubCarrierSpacingCommon, dmrs-TypeA-Position, cellBarred, and 1 bit of reserved spare.

Optionally, in Examples 1 to 3, the redefinable first information element further includes at least one of the following: the information element systemFrameNumber included in the MIB; bit0 to bit7 (as described in Table 5). If the information element used to determine the SFN in the load of the PBCH (that is, the information element systemFrameNumber included in the MIB and the information elements bit0 to bit3 included in the non-higher layer signaling in the load of the PBCH), the information element used to determine the SSB half frame (i.e. At least one of the information element bit4 included in the PBCH load that is not included in the high-level signaling), the information element used to determine the SSB index (that is, the information element bit5 to bit7 included in the PBCH load in the PBCH load in FR2) is used for If it is redefined, the UE may determine the SFN, SSB half frame, and/or SSB index according to the CD-SSB (ie, the SSB used when the UE initially accesses the cell).

It should be understood that, in Example 1 to Example 3, the first SSB may or may not be located in the sync raster, without limitation.

In addition, indication information may also be carried in other signaling to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined. Other signaling includes at least one of the following: SIB1, DCI for scheduling SIB1, MIB, other SIBs except SIB1 (such as SIB2, etc.), RRC signaling in RRC connected state, and the like.

The above embodiment describes that the PBCH is used to carry the first information, the second information, and/or the third information. Optionally, the PSS and/or SSS included in the Non-CD-SSB may also be used to carry the first information, the second information, and/or the third information.

As an example, the SSS included in the first SSB is used to carry the first information, and different SSS sequences represent different states. For example, SSS is the first sequence, indicating that there is paging at the first PO, and SSS is the second sequence, indicating that there is no paging at the first PO.

The network device may indicate or predefine the number of sequences and specific sequences representing the first information, the second information, and/or the third information in advance by agreement.

For example, the SSS included in the first SSB is used to carry the first information, and if eight kinds of sequences can represent the first information, then the SSS can be set as one of the eight kinds of sequences. For example, the first sequence to the eighth sequence are used to represent the first information, and SSS is set to the first sequence, indicating that there is no paging in the first PO, and the terminal equipment on the first PO does not need to monitor the paging PDCCH; SSS If it is set to the second sequence, it means that all terminal devices on the first PO are paged, and all terminal devices on the first PO will monitor the paging PDCCH in the first PO; if SSS is set to the nth sequence, it means that the There is a paging of the terminal equipment group (n-2) in a PO, wherein, n is an integer greater than or equal to 3 and less than or equal to 8, then the UE in the terminal equipment group (n-2) monitors the paging PDCCH on the first PO , other UEs on the first PO do not need to monitor the paging PDCCH on the first PO.

Optionally, the SSS may also be set to a sequence other than the eight sequences, and at this time, the SSS does not represent the first information.

For other implementation details of the PSS included in the first SSB and/or the SSS carrying the first information, the second information, and/or the third information, reference may be made to the foregoing embodiments, and details are not repeated here.

Through the PSS and/or SSS included in the SSB to carry the first information, the second information, and/or the third information, the terminal device can obtain the first information, the second information, and/or only by determining the sequence of the PSS and/or SSS Or the third information may not parse the PBCH, thereby saving power consumption of the terminal device.

Optionally, when the PSS and/or SSS included in the first SSB are used to carry the first information, the second information, and/or the third information, the first SSB is a non-CD-SSB, and the first SSB is not located in The sync raster of the SSB, that is, the first SSB is located at a frequency other than the sync raster of the SSB. In this way, the first SSB will not be searched by NR normal UE and NR traditional UE (that is, Legacy UE) when searching for SSB, which can avoid increasing the time delay of NR normal UE and traditional UE in cell search and access and avoid increasing UE energy loss.

Optionally, the PSS and/or SSS included in the first SSB may carry at least one of the first information, the second information and the third information at the same time as the redefined information element in the PBCH included in the first SSB.

As an example, the SSS included in the first SSB is used to indicate whether paging exists in the first PO, and if the SSS indicates that paging exists in the first PO, the redefined information element in the PBCH payload included in the first SSB is used to Indicates whether at least one of the group of end-devices on the first PO is paged. Wherein, the terminal devices on the first PO are divided into multiple terminal device groups. For example, the SSS indicates that there is paging at the first PO, and the redefined information element in the PBCH payload indicates that terminal device group 1 on the first PO is paged, and terminal device group 2 is not paged.

As an example, the SSS included in the first SSB is used to carry the first information, that is, to indicate whether there is paging in the first PO, and the redefined information element #1 in the PBCH payload included in the first SSB is used to carry the first The second information is used to indicate the availability status of at least one of the reference signal resources. Optionally, the redefined information element #2 in the PBCH payload included in the first SSB is used to carry the third information, that is, to indicate the period of the second SSB.

In this way, the PSS, SSS, and PBCH loads included in the non-CD-SSB can be fully utilized to improve resource utilization efficiency.

The technical solution of this application can also be applied to other communication systems, as long as non-CD-SSB is configured in the communication system, such as narrow band Internet of things (narrow band-internet of things, NB-IoT) system, machine type communication (machine type communication, MTC) system, future next-generation communication system, etc.

The communication method of the embodiment of the present application is described in detail above with reference to FIG. 1 to FIG. 26 , and the communication device of the embodiment of the present application will be described in detail below in conjunction with FIG. 27 to FIG. 35 .

FIG. 27 shows a communication device 2700 provided by an embodiment of the present application. The device 2700 includes: a determining module 2701 , a receiving module 2702 and a monitoring module 2703 .

Among them, the determining module 2701 is used for the terminal device to determine the first SSB block, the first SSB carries first information, and the first information is used to indicate whether there is paging of the terminal device at the first paging occasion PO, and the first SSB Including the SSB in the Nth synchronization signal SS burst set before the first PO, where N is a positive integer and is configured by the network device or preset by the protocol; or, the first SSB includes the SSB in the first SS burst set, and the first SSB includes the SSB in the first SS burst set. An SS burst set is located before the first PO, the interval between the first SS burst set and the first PO is greater than or equal to the first duration, and the first SS burst set has the shortest interval with the first PO SS burst set, the first duration is configured by the network device or preset by the protocol; the receiving module 2702 is used for the terminal device to receive the first SSB and obtain the first information from the first SSB; the monitoring module 2703 is used for if The first information indicates that there is paging of the terminal device at the first PO, and the terminal device monitors the paging physical downlink control channel PDCCH at the first PO.

As an example, the apparatus 2700 may be configured to execute the communication method shown in FIG. 5 , for example, the determining module 2701 is configured to execute S501, the receiving module 2702 is configured to execute S502, and the monitoring module 2703 is configured to execute S503.

In a possible implementation manner, the receiving module 2702 is further configured to: the terminal device receives indication information sent from the network device, where the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is Redefinition; if redefinition is indicated, the first information element represents the first information.

FIG. 28 shows a communication device 2800 provided by an embodiment of the present application, and the device 2800 includes: a determining module 2801 and a sending module 2802 .

Among them, the determining module 2801 is used for the network device to determine the first SSB block, the first SSB carries the first information, and the first information is used to indicate whether there is paging of the terminal device at the first paging occasion PO, and the first SSB Including the SSB in the Nth synchronization signal SS burst set before the first PO, where N is a positive integer and is configured by the network device or preset by the protocol; or, the first SSB includes the SSB in the first SS burst set, and the first SSB includes the SSB in the first SS burst set. An SS burst set is located before the first PO, the interval between the first SS burst set and the first PO is greater than or equal to the first duration, and the first SS burst set has the shortest interval with the first PO For the SS burst set, the first duration is configured by the network device or preset by the protocol; the sending module 2802 is used for the network device to send the first SSB.

As an example, the apparatus 2800 may be configured to execute the communication method shown in FIG. 8 , for example, the determining module 2801 is configured to execute S801, and the sending module 2802 is configured to execute S802.

In a possible implementation manner, the sending module 2802 is further configured to: the network device sends indication information to the terminal device, where the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined ; If redefinition is indicated, the first information element represents the first information.

In a possible implementation, the first SSB includes the SSBs in the Nth SS burst set to the N+M-1th SS burst set before the first PO, and the first SSB includes the first PO From the N-M+1 th SS burst set before the PO to the SSB in the N th SS burst set, M is a positive integer greater than or equal to 2.

In a possible implementation manner, the first SSB includes at least one SSB in M1 consecutive SS burst sets, each SS burst set in the M1 consecutive SS burst sets is located before the first PO, and each SS The interval between the burst set and the first PO is greater than or equal to the first duration, and M1 consecutive SS burst sets are included before the first PO and the interval between the first PO is greater than or equal to the first duration, And the SS burst set with the shortest interval from the first PO.

FIG. 29 shows a communication device 2900 provided by an embodiment of the present application. The device 2900 includes: a determining module 2901 , a receiving module 2902 and a monitoring module 2903 .

Among them, the determination module 2901 is used for the terminal device to determine the first SSB block, the first SSB carries first information, and the first information is used to indicate whether there is paging of the terminal device at the first paging occasion PO, and the first SSB Include at least one SSB in the first time window before the first PO; the interval between the start position of the first time window and the first PO is equal to the second duration, and the interval between the end position of the first time window and the first PO The interval is equal to the third duration; or, the interval between the start position of the first time window and the first PO is equal to the second duration, and the length of the first time window is the fourth duration; or, the end position of the first time window The interval from the first PO is equal to the third duration, and the length of the first time window is the fourth duration; the receiving module 2902 is used for the terminal device to receive the first SSB and obtain the first information from the first SSB; the monitoring module 2903. If the first information indicates that there is paging of the terminal device at the first PO, the terminal device monitors the paging physical downlink control channel PDCCH at the first PO.

As an example, the apparatus 2900 may be configured to execute the communication method shown in FIG. 11 , for example, the determining module 2901 is configured to execute S1101, the receiving module 2902 is configured to execute S1102, and the monitoring module 2903 is configured to execute S1103.

In a possible implementation manner, the receiving module 2902 is also used for the terminal device to receive indication information sent from the network device, where the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB has been repeated definition; if redefinition is indicated, the first information element represents the first information.

FIG. 30 shows a communication device 3000 provided by an embodiment of the present application, and the device 3000 includes: a determining module 3001 and a sending module 3002 .

Among them, the determining module 3001 is used for the network device to determine the first SSB block, the first SSB carries the first information, and the first information is used to indicate whether there is paging of the terminal device at the first paging occasion PO, and the first SSB Include at least one SSB in the first time window before the first PO; the interval between the start position of the first time window and the first PO is equal to the second duration, and the interval between the end position of the first time window and the first PO The interval is equal to the third duration; or, the interval between the start position of the first time window and the first PO is equal to the second duration, and the length of the first time window is the fourth duration; or, the end position of the first time window The interval from the first PO is equal to the third duration, and the length of the first time window is the fourth duration; the sending module 3002 is used for the network device to send the first SSB.

As an example, the apparatus 3000 may be configured to execute the communication method shown in FIG. 13 , for example, the determining module 3001 is configured to execute S1301, and the sending module 3002 is configured to execute S1302.

In a possible implementation manner, the sending module 3002 is further configured for the network device to send indication information to the terminal device, where the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined; If redefinition is indicated, the first information element represents the first information.

FIG. 31 shows a communication device 3100 provided by an embodiment of the present application, and the device 3100 includes: a receiving module 3101 and a processing module 3102 .

The receiving module 3101 is used for the terminal device to receive configuration information sent from the network device, and the configuration information is used to configure reference signal resources; the receiving module 3101 is also used for the terminal device to receive the first SSB sent by the network device, the first SSB The second information is carried in the second information, and the second information is used to indicate the availability status of at least one of the configured reference signal resources;

The processing module 3102 is configured to determine the availability status of at least one of the reference signal resources according to the second information; the receiving module 3101 is also configured to: if the availability status of at least one of the reference signal resources is available, the terminal device in the reference signal resources The available state is that the reference signal is received on part or all of the available reference signal resources.

In a possible implementation manner, the receiving module 3101 is also used for the terminal device to receive indication information sent from the network device, where the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB has been reconfigured. Definition; the processing module 3102 is configured to determine whether the first information has been redefined according to the indication information, and if redefinition is indicated, the first information element represents the second information.

As an example, the apparatus 3100 may be configured to execute the communication method shown in FIG. 16 , for example, the receiving module 3101 is configured to execute S1601, S1602, and S1603.

FIG. 32 shows a communication device 3200 provided by an embodiment of the present application. The device 3100 includes: a sending module 3201 and a processing module 3202 .

The sending module 3201 is used for the network device to send configuration information to the terminal device, and the configuration information is used to configure reference signal resources; the sending module 3201 is also used for the network device to send the first SSB to the terminal device, and the first SSB carries the second information, the second information is used to indicate the available status of at least one of the configured reference signal resources; the processing module 3202 is configured to determine the available status of at least one of the configured reference signal resources according to the second information; the sending module 3201 also uses If the available state of at least one of the reference signal resources is available, the network device sends the reference signal on the reference signal resource whose available state is available among the reference signal resources.

In a possible implementation, the processing module 3202 is configured to determine whether the first information element in the payload of the PBCH included in the first SSB is redefined; the sending module 3201 is also used for the network device to send indication information to the terminal device , the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined; if it is indicated to be redefined, the first information element represents the second information.

As an example, the apparatus 3200 may be configured to execute the communication method shown in FIG. 17 , for example, the sending module 3201 is configured to execute S1701, S1702, and S1703.

In a possible implementation manner, the first SSB is located in the second time window, at least one of the reference signal resources is located in the third time window, the third time window is located after the second time window, and the second time window and the second time window The three time windows are two adjacent time windows among the multiple time windows included in the periodic time window, and the length of the second time window and the length of the third time window are equal to the period of the periodic time window.

In a possible implementation manner, the first SSB is located in the second time window, at least one of the reference signal resources is located in the second time window, and the second time window is one of the multiple time windows included in the periodic time window For any time window, the length of the second time window is equal to the period of the periodic time window.

In a possible implementation, at least one of the reference signal resources is located in the fourth time window; wherein, the start time of the fourth time window is the same as the end time of the first SSB, or, the start time of the fourth time window The start time is the same as the end time of the SS burst set where the first SSB is located, or, the start time of the fourth time window is the same as the start time of the time slot where the first SSB is located, or, the start time of the fourth time window The time is the same as the end time of the time slot where the first SSB is located, or, the start time of the fourth time window is the same as the start time of the next time slot of the time slot where the first SSB is located, or, the fourth time window is located at the first After one SSB and the interval between the start time of the fourth time window and the first SSB is equal to the fifth time length, or the start time of the fourth time window is after the first SSB and before the first paging occasion PO, the first An SSB is located before the first PO, and the first PO is a PO determined by the terminal device for monitoring the paging physical downlink control channel PDCCH.

FIG. 33 shows a communication device 3300 provided by an embodiment of the present application, and the device 3300 includes: a receiving module 3301 and a processing module 3302 .

The receiving module 3301 is used for the terminal device to receive the first SSB sent by the network device, the first SSB carries third information, and the third information is used to indicate the period of the second SSB;

The processing module 3302 is configured to determine the period of the second SSB according to the third information; the receiving module 3301 is further configured to receive the second SSB by the terminal device according to the period of the second SSB.

In a possible implementation, the processing module 3402 is configured to determine whether the first information element in the payload of the PBCH included in the first SSB is redefined; the receiving module 3301 is also used for the terminal device to receive the information sent from the network device indication information, where the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined; if redefinition is indicated, the first information element represents the third information.

As an example, the apparatus 3300 may be used to execute the communication method shown in FIG. 21 , for example, the receiving module 3301 is used to execute S2101 and S2102.

FIG. 34 shows a communication device 3400 provided by an embodiment of the present application, and the device 3400 includes: a sending module 3401 .

The sending module 3401 is used for the network device to send the first synchronous broadcast block SSB to the terminal device, the first SSB carries the third information, and the third information is used to indicate the period of the second SSB; the sending module 3401 is also used for period, the network device sends the second SSB.

In a possible implementation manner, the sending module 3401 is further configured for the network device to send indication information to the terminal device, where the indication information is used to indicate whether the first information element in the payload of the PBCH included in the first SSB is redefined; If redefinition is indicated, the first information element represents the third information.

As an example, the apparatus 3400 may be configured to execute the communication method shown in FIG. 22 , for example, the sending module 3401 is configured to execute S2201 and S2202.

In a possible implementation manner, the first SSB is located in the fifth time window, the second SSB is located in the sixth time window, the sixth time window is located after the fifth time window, and the fifth time window and the sixth time window are For two adjacent time windows among the plurality of time windows included in the periodic time window, the lengths of the fifth time window and the sixth time window are equal to the period of the periodic time window.

In a possible implementation manner, the first SSB is located in the fifth time window, the second SSB is located after the fifth time window and before the sixth time window, the sixth time window is located after the fifth time window, and the fifth time window The window and the sixth time window are two adjacent time windows among the multiple time windows included in the periodic time window, and the length of the fifth time window is the same as that of the sixth time window, and is shorter than the period of the periodic time window .

Fig. 35 is a schematic diagram of a device provided by another embodiment of the present application. The device shown in FIG. 35 can be used to execute the method described in any one of the foregoing embodiments.

As shown in FIG. 35 , an apparatus 3500 in this embodiment includes: a memory 3501 , a processor 3502 , a communication interface 3503 and a bus 3504 . Wherein, the memory 3501 , the processor 3502 , and the communication interface 3503 are connected to each other through a bus 3504 .

The memory 3501 may be a read only memory (read only memory, ROM), a static storage device, a dynamic storage device or a random access memory (random access memory, RAM). The memory 3501 may store programs, and when the programs stored in the memory 3501 are executed by the processor 3502, the processor 3502 is configured to execute various steps of the methods shown in the foregoing embodiments.

The processor 3502 can adopt a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application specific integrated circuit (application specific integrated circuit, ASIC), or one or more integrated circuits, for executing related programs to Implement the various methods shown in the embodiments of this application.

The processor 3502 may also be an integrated circuit chip with signal processing capability. In the implementation process, each step of the method in the embodiment of the present application may be completed by an integrated logic circuit of hardware in the processor 3502 or instructions in the form of software.

The above-mentioned processor 3502 can also be a general-purpose processor, a digital signal processor (digital signal processing, DSP), an ASIC, an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 3501, and the processor 3502 reads the information in the memory 3501, and combines its hardware to complete the functions required by the units included in the device of the present application.

The communication interface 3503 may use, but not limited to, a transceiving device such as a transceiver to implement communication between the device 3500 and other devices or communication networks.

The bus 3504 may include a pathway for transferring information between various components of the device 3500 (eg, memory 3501, processor 3502, communication interface 3503).

It should be understood that the apparatus 3500 shown in the embodiment of the present application may be an electronic device, or may also be a chip configured in the electronic device.

It should be understood that the term "and/or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and/or B may mean: A exists alone, and A and B exist at the same time , there are three cases of B alone, where A and B can be singular or plural. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship, but it may also indicate an "and/or" relationship, which can be understood by referring to the context.

In this application, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (unit) in a, b or c can represent: a, b, c, a-b, a-c, b-c or a-b-c, wherein a, b, c can be single or multiple.

It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated. to another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

A unit described as a separate component may or may not be physically separated, and a component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions are realized in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods in various embodiments of the present application. The aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk.

The above is only the specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the application, and should cover Within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A communication method, characterized in that, comprising:

The terminal device determines a first synchronous broadcast block SSB, the first SSB carries first information, and the first information is used to indicate whether there is paging of the terminal device at the first paging occasion PO, and the first SSB Including the SSB in the Nth synchronization signal SS burst set before the first PO, where N is a positive integer and is configured by the network device or preset by the protocol; or,

The first SSB includes SSBs in a first SS burst set, the first SS burst set is located before the first PO, and the interval between the first SS burst set and the first PO is greater than Or equal to the first duration, and the first SS burst set is the SS burst set with the shortest interval between the first PO and the first duration is configured by the network device or preset by the protocol;

The terminal device receives the first SSB, and acquires the first information from the first SSB;

If the first information indicates that there is paging of the terminal device at the first PO, the terminal device monitors a paging physical downlink control channel PDCCH at the first PO.
The method according to claim 1, further comprising:

The terminal device receives indication information sent from the network device, where the indication information is used to indicate whether the first information element in the payload of the physical broadcast channel PBCH included in the first SSB is redefined;

If redefinition is indicated, the first information element represents the first information.
A communication method, characterized in that, comprising:

The network device determines a first SSB, the first SSB carries first information, and the first information is used to indicate whether there is paging of the terminal device at the first paging occasion PO, and the first SSB includes the The SSB in the Nth synchronization signal SS burst set before the first PO, where N is a positive integer and is configured by the network device or preset by the protocol; or,

The first SSB includes SSBs in a first SS burst set, the first SS burst set is located before the first PO, and the interval between the first SS burst set and the first PO is greater than Or equal to the first duration, and the first SS burst set is the SS burst set with the shortest interval between the first PO and the first duration is configured by the network device or preset by the protocol ;

The network device sends the first SSB.
The method according to claim 3, further comprising:

The network device sends indication information to the terminal device, where the indication information is used to indicate whether the first information element in the load of the physical broadcast channel PBCH included in the first SSB is redefined;

If redefinition is indicated, the first information element represents the first information.
The method according to any one of claims 1 to 4, wherein the first SSB includes the Nth SS burst set to the N+M-1th SS before the first PO The SSB in the burst set, or, the first SSB includes the N-M+1th SS burst set before the first PO to the SSB in the Nth SS burst set, and M is greater than or equal to A positive integer of 2.
The method according to any one of claims 1 to 4, wherein the first SSB includes at least one SSB in M1 consecutive SS burst sets, each of the M1 consecutive SS burst sets The SS burst set is located before the first PO, and the interval between each SS burst set and the first PO is greater than or equal to the first duration, and the M1 consecutive SS bursts Concentrating includes the SS burst set that is before the first PO, and whose interval with the first PO is greater than or equal to the first duration, and whose interval with the first PO is the shortest.
A communication method, characterized in that, comprising:

The terminal device determines a first synchronous broadcast block SSB, the first SSB carries first information, and the first information is used to indicate whether there is paging of the terminal device at the first paging occasion PO, and the first SSB including at least one SSB in a first time window preceding the first PO;

the interval between the start position of the first time window and the first PO is equal to a second duration, and the interval between the end position of the first time window and the first PO is equal to a third duration; or ,

The interval between the starting position of the first time window and the first PO is equal to a second duration, and the length of the first time window is a fourth duration; or,

The interval between the end position of the first time window and the first PO is equal to a third duration, and the length of the first time window is a fourth duration;

The terminal device receives the first SSB, and acquires the first information from the first SSB;

If the first information indicates that there is paging of the terminal device at the first PO, the terminal device monitors a paging physical downlink control channel PDCCH at the first PO.
The method according to claim 7, wherein the method further comprises:

The terminal device receives indication information sent from a network device, where the indication information is used to indicate whether the first information element in the payload of the physical broadcast channel PBCH included in the first SSB is redefined;

If redefinition is indicated, the first information element represents the first information.
A communication method, characterized in that, comprising:

The network device determines a first SSB, the first SSB carries first information, and the first information is used to indicate whether there is paging of the terminal device at the first paging occasion PO, and the first SSB includes the at least one SSB in a first time window preceding the first PO;

the interval between the start position of the first time window and the first PO is equal to a second duration, and the interval between the end position of the first time window and the first PO is equal to a third duration; or ,

The interval between the starting position of the first time window and the first PO is equal to a second duration, and the length of the first time window is a fourth duration; or,

The interval between the end position of the first time window and the first PO is equal to a third duration, and the length of the first time window is a fourth duration;

The network device sends the first SSB.
The method according to claim 9, characterized in that the method further comprises:

The network device sends indication information to the terminal device, where the indication information is used to indicate whether the first information element in the load of the physical broadcast channel PBCH included in the first SSB is redefined;

If redefinition is indicated, the first information element represents the first information.
A communication method, characterized in that, comprising:

The terminal device receives configuration information sent from the network device, where the configuration information is used to configure reference signal resources;

The terminal device receives the first SSB sent from the network device, where the first SSB carries second information, and the second information is used to indicate at least one of the configured reference signal resources. available status;

If it is determined according to the second information that the available state of at least one of the reference signal resources is available, the terminal device receives a reference on some or all of the reference signal resources whose available state is available among the reference signal resources. Signal.
The method according to claim 11, characterized in that the method further comprises:

The terminal device receives indication information sent from the network device, where the indication information is used to indicate whether the first information element in the payload of the physical broadcast channel PBCH included in the first SSB is redefined;

If redefinition is indicated, the first information element represents the second information.
A communication method, characterized in that, comprising:

The network device sends configuration information to the terminal device, where the configuration information is used to configure reference signal resources;

The network device sends a first SSB to the terminal device, where the first SSB carries second information, and the second information is used to indicate an available state of at least one of the configured reference signal resources ;

If it is determined according to the second information that the availability status of at least one of the reference signal resources is available, the network device sends a reference signal on a reference signal resource whose availability status is available among the reference signal resources.
The method according to claim 13, further comprising:

The network device sends indication information to the terminal device, where the indication information is used to indicate whether the first information element in the load of the physical broadcast channel PBCH included in the first SSB is redefined;

If redefinition is indicated, the first information element represents the second information.
The method according to any one of claims 11 to 14, wherein the first SSB is located in a second time window, at least one of the reference signal resources is located in a third time window, and the first The three time windows are located after the second time window, the second time window and the third time window are adjacent two time windows among the multiple time windows included in the periodic time window, and the second time window The length of the time window and the length of the third time window are equal to the period of the periodic time window.
The method according to any one of claims 11 to 14, wherein the first SSB is located within a second time window, at least one of the reference signal resources is located within the second time window, and the The second time window is any one of multiple time windows included in the periodic time window, and the length of the second time window is equal to the period of the periodic time window.
The method according to any one of claims 11 to 14, wherein at least one of the reference signal resources is located within a fourth time window;

Wherein, the start time of the fourth time window is the same as the end time of the first SSB, or, the start time of the fourth time window is the same as the end time of the SS burst set in which the first SSB is located The same, or, the start time of the fourth time window is the same as the start time of the time slot where the first SSB is located, or, the start time of the fourth time window is the same as the start time of the time slot where the first SSB is located The end times of the time slots are the same, or, the start time of the fourth time window is the same as the start time of the next time slot of the time slot where the first SSB is located, or, the fourth time window is located in the After the first SSB and the interval between the start time of the fourth time window and the first SSB is equal to the fifth duration, or the start time of the fourth time window is after the first SSB and is located Before the first paging opportunity PO, the first SSB is located before the first PO, and the first PO is a PO determined by the terminal device for monitoring a paging physical downlink control channel PDCCH.
A communication method, characterized in that, comprising:

The terminal device receives the first synchronous broadcast block SSB sent from the network device, the first SSB carries third information, and the third information is used to indicate the period of the second SSB;

According to the period of the second SSB, the terminal device receives the second SSB.
The method according to claim 18, further comprising:

The terminal device receives indication information sent from the network device, where the indication information is used to indicate whether the first information element in the payload of the physical broadcast channel PBCH included in the first SSB is redefined;

If redefinition is indicated, the first information element represents the third information.
A communication method, characterized in that, comprising:

The network device sends a first synchronous broadcast block SSB to the terminal device, the first SSB carries third information, and the third information is used to indicate the period of the second SSB;

The network device sends the second SSB according to the period of the second SSB.
The method according to claim 20, further comprising:

The network device sends indication information to the terminal device, where the indication information is used to indicate whether the first information element in the load of the physical broadcast channel PBCH included in the first SSB is redefined;

If redefinition is indicated, the first information element represents the third information.
The method according to any one of claims 18 to 21, wherein the first SSB is located in a fifth time window, the second SSB is located in a sixth time window, and the sixth time window is located in After the fifth time window, the fifth time window and the sixth time window are two adjacent time windows among the multiple time windows included in the periodic time window, and the length of the fifth time window is and the length of the sixth time window is equal to the period of the periodic time window.
The method according to any one of claims 18 to 21, wherein the first SSB is located within a fifth time window, and the second SSB is located after the fifth time window and is located in a sixth time window Before, the sixth time window is located after the fifth time window, and the fifth time window and the sixth time window are two adjacent time windows among the multiple time windows included in the periodic time window , the length of the fifth time window is the same as the length of the sixth time window, and is smaller than the period of the periodic time window.
A communication device, characterized in that the communication device comprises a module for performing the method according to any one of claims 1 to 23.
A communication device, characterized in that the communication device includes at least one processor and a memory, the processor is coupled to the memory, the memory stores program instructions, and when the program instructions stored in the memory are used by the When executed by the processor, the communication device is made to execute the method according to any one of claims 1-23.
A computer-readable storage medium, characterized in that the computer-readable storage medium is used to store program instructions executed by a computer, and the program instructions include instructions for executing the method according to any one of claims 1 to 23 instructions.
A computer program product, characterized in that the computer program product includes computer program instructions, and when the computer program instructions are run on a computer, the computer implements the computer program described in any one of claims 1 to 23. Methods.