Communication method and apparatus

Abstract

The present application discloses a communication method and apparatus. In the method, a first serial number of a first terminal device can be obtained on the basis of a maximum value of the sum of the number of first subgroups and the number of second subgroups, the first subgroups are subgroups obtained by grouping the serial numbers of terminal devices, the second subgroups are subgroups obtained by grouping core network devices, the maximum value of the sum of the number of first subgroups and the number of second subgroups is not fixed, and the number of terminal devices comprised in each subgroup can be reduced by increasing the maximum value of the sum of the number of first subgroups and the number of second subgroups. Since a first identifier of a subgroup where the first terminal device is located is obtained on the basis of the first serial number of the first terminal device, when grouping at least one terminal device including the first terminal device, the number of terminal devices comprised in the subgroup where the first terminal device is located can be reduced, thereby reducing the false alarm rate of the first terminal device and the power consumption of the first terminal device.

Description

Communication method and device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on February 1, 2024, with application number 202410145257.X and invention name "A Communication Method and Device", the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0004] To reduce power consumption in terminal devices, a separate low-power wake-up receiver (LP-WUR) is introduced. For example, the LP-WUR remains on while the main receiver remains off or in deep sleep. The LP-WUR is used to receive a low-power wake-up signal (LP-WUS). The LP-WUS is used to wake up the main receiver. This reduces the operating time of the higher-power main receiver, thereby reducing power consumption in the terminal device.

[0005] Currently, LP-WUS is considering grouping terminal devices to reduce the probability of terminal devices waking up the main receiver, thereby further achieving energy saving. However, how to group terminal devices remains an unresolved issue. Summary of the Invention

[0006] Embodiments of the present application provide a communication method and apparatus for reducing power consumption of a terminal device.

[0007] In a first aspect, an embodiment of the present application provides a communication method, which is applied to a first terminal device side. Specifically, the method can be applied to the first terminal device, or to a component in the first terminal device, such as a unit / module, circuit, or chip (system). The method includes: determining a first identifier of a subgroup to which the first terminal device belongs based on a first serial number of the first terminal device; wherein the first serial number of the first terminal device is obtained based on first information, the first information includes first subgroup information, the first subgroup information is used to indicate the maximum value of the sum of the number of first subgroups and the number of second subgroups corresponding to a monitoring opportunity, the monitoring opportunity is used to monitor a low-power wake-up signal, the first subgroup is a subgroup obtained by grouping the at least one terminal device based on the serial number of each terminal device in the at least one terminal device, the at least one terminal device includes the first terminal device, and the second subgroup is a subgroup obtained by grouping the at least one terminal device by a core network device.

[0008] In the implementation of the present application, the first serial number of the first terminal device can be obtained based on the maximum value of the sum of the number of the first subgroup and the number of the second subgroup. The maximum value of the sum of the number of the first subgroup and the number of the second subgroup is not fixed. For example, the number of terminal devices included in each subgroup can be reduced by increasing the maximum value of the sum of the number of the first subgroup and the number of the second subgroup. Since the first identifier of the subgroup to which the first terminal device belongs is obtained based on the first serial number of the first terminal device, when grouping at least one terminal device including the first terminal device, the number of terminal devices included in the subgroup to which the first terminal device belongs can be reduced, thereby reducing the false alarm rate of the first terminal device and the power consumption of the first terminal device.

[0009] In one possible implementation, the first information also includes one or more of the following information: a fifth-generation communication system temporary mobile user identification of the first terminal device; first monitoring timing information, used to determine the maximum number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device; a first parameter, related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle.

[0010] In this embodiment, multiple methods are provided for determining the first serial number of the first terminal device based on the first subgroup information. For example, the first serial number of the first terminal device can be obtained based on the first subgroup information and the fifth generation communication system temporary mobile user identification of the first terminal device, or the first serial number of the first terminal device can be obtained based on the first subgroup information and the first monitoring opportunity information.

[0011] In a possible implementation manner, the calculation formula for the first serial number of the first terminal device is specifically: UEID_LPWUS=K1 mod(K2*K3*subgroupsMaxNumPerOccasion LPWUS )

[0012] Among them, UEID_LPWUS is the first serial number of the first terminal device, K1 is the fifth generation communication system temporary mobile user identity of the first terminal device, the value of K2 is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, K3 is the maximum number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device, subgroupsMaxNumPerOccasion LPWUS is the maximum value of the sum of the number of the first subgroup and the number of the second subgroup corresponding to a monitoring opportunity.

[0013] In this embodiment, a specific calculation formula for the first serial number of the first terminal device is provided when determining the first serial number of the first terminal device based on the first subgroup information, thereby improving the efficiency of determining the first serial number of the first terminal device.

[0014] In one possible implementation, based on the first serial number of the first terminal device, determining the first identifier of the subgroup to which the first terminal device belongs, includes: based on the first serial number of the first terminal device, second monitoring opportunity information and second subgroup information, determining the first identifier of the subgroup to which the first terminal device belongs; wherein the second monitoring opportunity information is used to determine the number of the monitoring opportunities included in a non-continuous reception cycle of the first terminal device; and the second subgroup information is used to indicate the number of the first subgroup corresponding to one monitoring opportunity.

[0015] In this embodiment, a method is provided for determining the first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device. For example, the first identifier of the subgroup to which the first terminal device belongs is determined based on the first serial number of the first terminal device, the second monitoring timing information and the second subgroup information, thereby improving the efficiency of the first terminal device in determining the first identifier of the subgroup to which the first terminal device belongs.

[0016] In one possible implementation, based on the first serial number, the second monitoring opportunity information, and the second subgroup information of the first terminal device, the first identifier of the subgroup to which the first terminal device belongs is determined, including: based on the first serial number, the second monitoring opportunity information, the second subgroup information, and the second parameter, the first identifier of the subgroup to which the first terminal device belongs is determined; wherein the second parameter is 0 or the second parameter is related to the second subgroup information and the third subgroup information, and the third subgroup information is used to indicate the sum of the number of the first subgroup and the number of the second subgroup corresponding to one monitoring opportunity.

[0017] In this embodiment, a method is provided for determining the first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device. For example, the first identifier of the subgroup to which the first terminal device belongs is determined based on the first serial number of the first terminal device, the second monitoring timing information, the second subgroup information and the second parameter, thereby improving the efficiency of the first terminal device in determining the first identifier of the subgroup to which the first terminal device belongs.

[0018] In a possible implementation manner, the calculation formula for the first identifier of the subgroup to which the first terminal device belongs is specifically: SubgroupID1 LPWUS =(floor(UEID LPWUS / N1))mod(subgroupsNumForUEID LPWUS )+offset

[0019] Among them, SubgroupID1 LPWUS is the first identifier of the subgroup to which the first terminal device belongs, UEID_LPWUS is the first serial number of the first terminal device, N1 is the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device, subgroupsNumForUEID LPWUS The number of the first subgroup corresponding to the monitoring opportunity, the offset value is 0 or the offset value is equal to subgroupsNumForUEID LPWUS and subgroupsNumPerOccasion LPWUS Related, subgroupsNumPerOccasion LPWUS It is the sum of the number of the first subgroup and the number of the second subgroup corresponding to one monitoring opportunity.

[0020] In this embodiment, a specific calculation formula for the first identifier of the subgroup to which the first terminal device belongs is provided when determining the first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device, thereby improving the efficiency of determining the first identifier of the subgroup to which the first terminal device belongs.

[0021] In one possible embodiment, the method also includes: receiving first indication information from an access network device, the first indication information is used to indicate second monitoring opportunity information, and the second monitoring opportunity information is used to determine the number of monitoring opportunities included in a non-continuous reception cycle of the first terminal device; or, the number of monitoring opportunities included in a non-continuous reception cycle of the first terminal device is the product of a third parameter and a proportional factor, and the third parameter is the product of the number of paging frames included in a non-continuous reception cycle of the first terminal device and the number of paging opportunities included in a paging frame.

[0022] In this embodiment, two methods are provided for a first terminal device to determine the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device. For example, the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device is received from an access network device, or the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device is determined based on the number of paging frames included in a discontinuous reception cycle of the first terminal device, the number of paging opportunities included in a paging frame, and a scaling factor. This makes the method for the first terminal device to determine the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device more flexible.

[0023] In a possible implementation, the method further includes: receiving second indication information from the access network device, where the second indication information includes second subgroup information, and the second subgroup information is used to indicate the number of the first subgroups corresponding to one monitoring opportunity.

[0024] In this embodiment, a method is provided for a first terminal device to determine the number of first subgroups corresponding to a monitoring opportunity, for example, by receiving the number of first subgroups corresponding to a monitoring opportunity from an access network device.

[0025] In a possible implementation, the method further includes: receiving third indication information from the access network device, the third indication information including third subgroup information, the third subgroup information being used to indicate the sum of the number of the first subgroup and the number of the second subgroup corresponding to the monitoring opportunity.

[0026] In this embodiment, a method is provided for a first terminal device to determine the sum of the number of first subgroups and the number of second subgroups corresponding to a monitoring opportunity, for example, by receiving the sum of the number of first subgroups and the number of second subgroups corresponding to a monitoring opportunity from an access network device.

[0027] In one possible implementation, the method further includes: determining the second identifier of the subgroup to which the first terminal device belongs based on the second serial number, third parameter, fourth subgroup information and fifth subgroup information of the first terminal device; determining the third identifier of the subgroup to which the first terminal device belongs based on the second identifier, second subgroup information, the fifth subgroup information and fourth parameter of the subgroup to which the first terminal device belongs; wherein the second serial number of the first terminal device is obtained based on the fifth generation communication system temporary mobile user identifier of the first terminal device and the first parameter, the first parameter is related to whether the discontinuous reception period of the first terminal device is an extended discontinuous reception period, and the third parameter is a discontinuous reception period of the first terminal device. The product of the number of paging frames included and the number of paging occasions included in a paging frame, the second subgroup information is used to indicate the number of the first subgroup corresponding to the monitoring occasion, the fourth subgroup information is used to indicate the number of the first subgroup corresponding to the paging occasion, the fifth subgroup information is used to indicate the sum of the number of the first subgroup and the number of the second subgroup corresponding to the paging occasion, the fourth parameter is obtained based on the second serial number of the first terminal device and the second subgroup information, or is pre-configured, or is obtained based on the second serial number of the first terminal device and the second identifier of the subgroup to which the first terminal device is located, or is obtained based on the second serial number of the first terminal device and the fourth subgroup information.

[0028] In this embodiment, the at least one terminal device including the first terminal device can be grouped using the grouping rule of the paging early indicator (PEI) (i.e., the maximum number of subgroups obtained by grouping is fixed to 8) to determine the second identifier of the subgroup to which the first terminal device belongs. Since when the at least one terminal device including the first terminal device is grouped using the grouping rule of the PEI, it may be possible that some subgroups include a large number of terminal devices and some subgroups include a small number of terminal devices, the number of subgroups obtained by grouping the at least one terminal device including the first terminal device can be increased, and some terminal devices in the subgroup including a large number of terminal devices can be transferred to the increased subgroup, that is, the at least one terminal device including the first terminal device can be regrouped to determine the third identifier of the subgroup to which the first terminal device belongs. This reduces the number of terminal devices included in the subgroup to which the first terminal device belongs, reduces the false alarm rate of the first terminal device, and reduces the power consumption of the first terminal device.

[0029] In a possible implementation, a calculation formula for the third identifier of the subgroup to which the first terminal device belongs is specifically:

[0030] Among them, SubgroupID2 LPWUSis the second identifier of the subgroup to which the first terminal device belongs, UEID is the second serial number of the first terminal device, the value of UEID is obtained based on K1 and K4, K1 is the temporary mobile user identifier of the fifth generation communication system of the first terminal device, the value of K2 is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, N is the number of paging frames included in a discontinuous reception cycle of the first terminal device, N s is the number of paging occasions included in a paging frame, subgroupsNumForUEID is the number of the first subgroup corresponding to the paging occasion, subgroupsNumPerPO is the sum of the number of the first subgroup and the number of the second subgroup corresponding to the paging occasion, SubgroupID3 LPWUS The third identifier of the subgroup to which the first terminal device belongs, subgroupsNumForUEID LPWUS The number of the first subgroup corresponding to the monitoring opportunity. The value of offset_LPWUS is based on UEID and subgroupsNumForUEID LPWUS Obtained, either pre-configured or based on UEID and SubgroupID2 LPWUS Or it can be obtained based on UEID and subgroupsNumForUEID.

[0031] In this embodiment, a specific calculation formula for the third identifier of the subgroup where the first terminal device is located is provided when determining the third identifier of the subgroup where the first terminal device is located based on the second identifier of the subgroup where the first terminal device is located, the second subgroup information, the fifth subgroup information and the fourth parameter, thereby improving the efficiency of determining the third identifier of the subgroup where the first terminal device is located.

[0032] In a possible embodiment, the method also includes: receiving fourth indication information from the access network device, the fourth indication information being used to indicate a first identifier, a second identifier or a third identifier of the terminal device included in each subgroup or any subgroup corresponding to the monitoring opportunity to determine the subgroup to which the terminal device is located.

[0033] In this embodiment, the access network device can indicate the terminal devices included in each subgroup corresponding to a monitoring moment or any subgroup based on the number of terminal devices included in each subgroup corresponding to a monitoring moment to determine the first identifier, second identifier or third identifier of the subgroup to which the terminal device is located, thereby improving the efficiency of the first terminal device in determining the identifier of the subgroup to which the first terminal device is located.

[0034] In one possible embodiment, the method also includes: receiving the low-power wake-up signal from the access network device, the low-power wake-up signal including fifth indication information, the fifth indication information being used to indicate whether the terminal device included in each subgroup or any subgroup corresponding to the monitoring opportunity wakes up the main receiver; and determining whether to wake up the main receiver of the first terminal device based on the first identifier, second identifier or third identifier of the subgroup to which the first terminal device is located.

[0035] In this embodiment, the low-power wake-up signal can reduce the probability of the terminal device waking up the main receiver by grouping the terminal devices, thereby reducing the power consumption of the terminal devices.

[0036] In a possible implementation, the method further includes: sending sixth indication information to the access network device, where the sixth indication information is used to indicate that the first terminal device supports grouping of the at least one terminal device based on the serial number of each terminal device in the at least one terminal device.

[0037] In an implementation manner, the first terminal device may inform the access network device in advance whether the first terminal device supports grouping based on the sequence number of the terminal device, thereby reducing the power consumption of the first terminal device.

[0038] In a second aspect, an embodiment of the present application further provides a communication method, which is applied to an access network device side. Specifically, the method can be applied to the access network device, or to a component in the access network device, such as a unit / module, circuit or chip (system), etc. The method includes: determining a first identifier of a subgroup to which the first terminal device belongs based on a first serial number of a first terminal device; wherein the first serial number of the first terminal device is obtained based on first information, the first information includes first subgroup information, the first subgroup information is used to indicate the maximum value of the sum of the number of first subgroups and the number of second subgroups corresponding to a monitoring opportunity, the monitoring opportunity is used to monitor a low-power wake-up signal, the first subgroup is a subgroup obtained by grouping the at least one terminal device based on the serial number of each terminal device in the at least one terminal device, the at least one terminal device includes the first terminal device, and the second subgroup is a subgroup obtained by grouping the at least one terminal device by a core network device.

[0039] In one possible implementation, the first information also includes one or more of the following information: a fifth-generation communication system temporary mobile user identification of the first terminal device; first monitoring timing information, used to determine the maximum number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device; a first parameter, related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle.

[0040] In a possible implementation manner, the calculation formula for the first serial number of the first terminal device is specifically: UEID_LPWUS=K1 mod(K2*K3*subgroupsMaxNumPerOccasion LPWUS )

[0041] Among them, UEID_LPWUS is the first serial number of the first terminal device, K1 is the fifth generation communication system temporary mobile user identity of the first terminal device, the value of K2 is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, K3 is the maximum number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device, subgroupsMaxNumPerOccasion LPWUS is the maximum value of the sum of the number of the first subgroup and the number of the second subgroup corresponding to a monitoring opportunity.

[0042] In one possible implementation, based on the first serial number of the first terminal device, determining the first identifier of the subgroup to which the first terminal device belongs, includes: based on the first serial number of the first terminal device, second monitoring opportunity information and second subgroup information, determining the first identifier of the subgroup to which the first terminal device belongs; wherein the second monitoring opportunity information is used to determine the number of the monitoring opportunities included in a non-continuous reception cycle of the first terminal device; and the second subgroup information is used to indicate the number of the first subgroup corresponding to one monitoring opportunity.

[0043] In one possible implementation, based on the first serial number, the second monitoring opportunity information, and the second subgroup information of the first terminal device, the first identifier of the subgroup to which the first terminal device belongs is determined, including: based on the first serial number, the second monitoring opportunity information, the second subgroup information, and the second parameter, the first identifier of the subgroup to which the first terminal device belongs is determined; wherein the second parameter is 0 or the second parameter is related to the second subgroup information and the third subgroup information, and the third subgroup information is used to indicate the sum of the number of the first subgroup and the number of the second subgroup corresponding to one monitoring opportunity.

[0044] In a possible implementation manner, the calculation formula for the first identifier of the subgroup to which the first terminal device belongs is specifically: SubgroupID1 LPWUS =(floor(UEID_LPWUS / N1))mod(subgroupsNumForUEID LPWUS )+offset

[0045] Among them, SubgroupID1 LPWUSis the first identifier of the subgroup to which the first terminal device belongs, UEID_LPWUS is the first serial number of the first terminal device, N1 is the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device, subgroupsNumForUEID LPWUS The number of the first subgroup corresponding to the monitoring opportunity, the offset value is 0 or the offset value is equal to subgroupsNumForUEID LPWUS and subgroupsNumPerOccasion LPWUS Related, subgroupsNumPerOccasion LPWUS It is the sum of the number of the first subgroup and the number of the second subgroup corresponding to one monitoring opportunity.

[0046] In a possible implementation, the method further includes: sending first indication information to the first terminal device, the first indication information being used to indicate second monitoring opportunity information, the second monitoring opportunity information being used to determine the number of monitoring opportunities included in a non-continuous reception cycle of the first terminal device.

[0047] In one possible implementation, the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device is the product of a third parameter and a proportional factor, and the third parameter is the product of the number of paging frames included in a discontinuous reception cycle of the first terminal device and the number of paging opportunities included in a paging frame.

[0048] In a possible implementation, the method further includes: sending second indication information to the terminal device, where the second indication information includes second subgroup information, and the second subgroup information is used to indicate the number of the first subgroups corresponding to one monitoring opportunity.

[0049] In a possible implementation, the method further includes: sending a third indication message to the terminal device, the third indication message including third subgroup information, the third subgroup information being used to indicate the sum of the number of the first subgroup and the number of the second subgroup corresponding to the monitoring opportunity.

[0050] In one possible implementation, the method further includes: determining the second identifier of the subgroup to which the first terminal device belongs based on the second serial number, third parameter, fourth subgroup information and fifth subgroup information of the first terminal device; determining the third identifier of the subgroup to which the first terminal device belongs based on the second identifier, second subgroup information, the fifth subgroup information and fourth parameter of the subgroup to which the first terminal device belongs; wherein the second serial number of the first terminal device is obtained based on the fifth generation communication system temporary mobile user identifier of the first terminal device and the first parameter, the first parameter is related to whether the discontinuous reception period of the first terminal device is an extended discontinuous reception period, and the third parameter is a discontinuous reception period of the first terminal device. The product of the number of paging frames included and the number of paging occasions included in a paging frame, the second subgroup information is used to indicate the number of the first subgroup corresponding to the monitoring occasion, the fourth subgroup information is used to indicate the number of the first subgroup corresponding to the paging occasion, the fifth subgroup information is used to indicate the sum of the number of the first subgroup and the number of the second subgroup corresponding to the paging occasion, the fourth parameter is obtained based on the second serial number of the first terminal device and the second subgroup information, or is pre-configured, or is obtained based on the second serial number of the first terminal device and the second identifier of the subgroup to which the first terminal device is located, or is obtained based on the second serial number of the first terminal device and the fourth subgroup information.

[0051] In a possible implementation, a calculation formula for the third identifier of the subgroup to which the first terminal device belongs is specifically:

[0052] Among them, SubgroupID2 LPWUS is the second identifier of the subgroup to which the first terminal device belongs, UEID is the second serial number of the first terminal device, the value of UEID is obtained based on K1 and K2, K1 is the temporary mobile user identifier of the fifth generation communication system of the first terminal device, the value of K2 is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, N is the number of paging frames included in a discontinuous reception cycle of the first terminal device, N s is the number of paging occasions included in a paging frame, subgroupsNumForUEID is the number of the first subgroup corresponding to the paging occasion, subgroupsNumPerPO is the sum of the number of the first subgroup and the number of the second subgroup corresponding to the paging occasion, SubgroupID3 LPWUS The third identifier of the subgroup to which the first terminal device belongs, subgroupsNumForUEID LPWUSThe number of the first subgroup corresponding to the monitoring opportunity. The value of offset_LPWUS is based on UEID and subgroupsNumForUEID LPWUS Obtained, either pre-configured or based on UEID and SubgroupID2 LPWUS Or it can be obtained based on UEID and subgroupsNumForUEID.

[0053] In a possible implementation, the method further includes: sending a fourth indication message to the first terminal device, the fourth indication message being used to indicate a first identifier, a second identifier or a third identifier of the subgroup to which the terminal device is included, for each subgroup or any subgroup corresponding to the monitoring opportunity.

[0054] In a possible implementation, the method further includes: sending the low-power wake-up signal to the first terminal device, the low-power wake-up signal including fifth indication information, the fifth indication information being used to indicate whether each subgroup or any subgroup corresponding to the monitoring opportunity wakes up the main receiver.

[0055] In a possible implementation, the method further includes: receiving sixth indication information from the first terminal device, where the sixth indication information is used to indicate that the first terminal device supports grouping of the at least one terminal device based on the serial number of each terminal device in the at least one terminal device.

[0056] The beneficial effects of the above-mentioned second aspect and its embodiments can refer to the beneficial effects of the first aspect and any one of its embodiments.

[0057] In a third aspect, embodiments of the present application provide a communications device, including a processor; the processor may also be one or more processors. The device may be the first terminal device in the first aspect or the access network device in the second aspect, or may be a component in the first terminal device or the access network device, such as a unit / module, circuit, or chip (system).

[0058] In one possible implementation, the processor is coupled to a memory configured to store computer instructions. When the device is running, the processor executes the computer instructions stored in the memory, causing the device to perform any of the implementations of the first or second aspects described above. The memory may be a volatile or non-volatile memory, such as a cache memory in a semiconductor chip. The memory may be located within or outside the device.

[0059] In one possible implementation, the device further includes an interface circuit, and the processor is configured to communicate with other devices via the interface circuit, so that the device executes any of the implementations of the first or second aspects described above. Specifically, the interface circuit is configured to receive signals from other communication devices outside the device and transmit them to the processor, or to transmit signals from the processor to other communication devices outside the device. The sending and receiving steps in the first aspect can be understood as the sending and receiving performed by the interface circuit.

[0060] In a fourth aspect, an embodiment of the present application provides a communication device, which may be the first terminal device in the first aspect or the access network device in the second aspect, or a component in the first terminal device or the access network device, such as a unit / module, circuit, or chip (system). The device has the function of implementing any of the embodiments of the first or second aspects above. The function may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0061] In a fifth aspect, an embodiment of the present application provides a communication device, comprising a unit or means for executing each step of any implementation of the first aspect or the second aspect above.

[0062] In a sixth aspect, an embodiment of the present application further provides a computer-readable storage medium, which stores instructions. When the computer-readable storage medium is run on a communication device, any implementation of the above-mentioned first aspect or second aspect is executed.

[0063] In the seventh aspect, an embodiment of the present application also provides a computer program product, which includes a computer program or instructions. When the computer program or instructions are run by a communication device, any implementation of the above-mentioned first aspect or second aspect is executed.

[0064] In the eighth aspect, an embodiment of the present application also provides a communication system, which includes: a first terminal device, used to execute any implementation method executed by the first terminal device in the above-mentioned first aspect or second aspect; an access network device, used to execute any implementation method executed by the access network device in the above-mentioned first aspect or second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] FIG1 is a schematic diagram of the structure of a communication system provided in an embodiment of the present application;

[0066] FIG2 is a schematic diagram of a PEI provided in an embodiment of the present application;

[0067] FIG3 is a schematic diagram of a grouping scenario provided in an embodiment of the present application;

[0068] FIG4 is a schematic diagram of an LP-WUR provided in an embodiment of the present application;

[0069] FIG5 is a schematic diagram of another grouping scenario provided in an embodiment of the present application;

[0070] FIG6 is a flow chart of a communication method provided in an embodiment of the present application;

[0071] FIG7 is a flow chart of another communication method provided in an embodiment of the present application;

[0072] FIG8 is a schematic diagram of another grouping scenario provided in an embodiment of the present application;

[0073] FIG9 is a flow chart of a communication method 900 provided in an embodiment of the present application;

[0074] FIG10 is a schematic diagram of a communication device 1000 provided in an embodiment of the present application;

[0075] FIG11 is a schematic diagram of a communication device 1100 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0076] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0077] The technical solution provided in the embodiment of the present application can be applied to communication systems related to the 3rd Generation Partnership Project (3GPP), for example, long term evolution (LTE) communication systems, fifth generation (5G) mobile communication systems (specifically, new radio (NR) communication systems, or NR communication systems that introduce multiple-input multiple-output (MIMO) technology, etc.), or can also be applied to other next generation mobile communication systems, such as the sixth generation (6G) communication system, or other similar communication systems, or communication systems in future evolution processes. Other similar communication systems may include wireless fidelity (WiFi), vehicle to everything (V2X), Internet of Things (IoT) systems, narrowband Internet of Things (NB-IoT) systems, or industrial Internet, etc.

[0078] Referring to Figure 1 , which is a schematic diagram of the structure of a communication system provided in an embodiment of the present application, the communication system may include a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system may also include the Internet 300.

[0079] The wireless access network 100 includes at least one access network device (such as access network devices 110a and 110b in FIG. 1 , collectively referred to as access network device 110) and at least one terminal device (such as terminal devices 120a-120j in FIG. 1 , collectively referred to as terminal device 120). The wireless access network 100 may also include other devices, such as wireless relay devices and / or wireless backhaul devices (not shown in FIG. 1 ). The terminal device 120 is wirelessly connected to the access network device 110. The access network device 110 is wirelessly or wiredly connected to the core network 200. The core network device 210 in the core network 200 and the access network device 110 in the wireless access network 100 may be different physical devices, or they may be the same physical device that integrates core network logical functions and wireless access network logical functions.

[0080] The radio access network 100 may be a 3GPP-related communication system (e.g., a 5G mobile communication system) or another next-generation mobile communication system (e.g., a 6G mobile communication system). The radio access network 100 may also be an open access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a WiFi system. The radio access network 100 may also be a communication system that integrates two or more of the above systems.

[0081] The access network device 110, also known as a RAN node, a RAN entity or an access node, is used to help the terminal device 120 achieve wireless access.

[0082] In one possible scenario, a RAN node may be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), a next-generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. A RAN node may be a macro base station (such as 110a in Figure 1 ), a micro base station or an indoor station (such as 110b in Figure 1 ), a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, a RAN node may also be a server, a wearable device, a vehicle, or an onboard device. For example, a RAN node in V2X technology may be a road side unit (RSU).

[0083] In another possible scenario, multiple RAN nodes may collaborate to assist the terminal device 120 in achieving wireless access, with different RAN nodes implementing part of the functions of a base station. For example, a RAN node may be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU may be configured separately or included in the same network element, such as a baseband unit (BBU). The RU may be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). The CU can complete the functions of the radio resource control (RRC) protocol and packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU can complete the functions of the radio link control (RLC) layer and medium access control (MAC) layer of the base station, and can also complete the functions of part of the physical (PHY) layer or all of the physical layer. For detailed descriptions of the above protocol layers, please refer to the relevant technical specifications of 3GPP.

[0084] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (Open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, this application uses CU, CU-CP, CU-UP, DU and RU as examples for description. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0085] Terminal device 120 may also be referred to as a terminal, user equipment (UE), mobile station, or mobile terminal. Terminal device 120 can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), IoT communication, virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearables, smart transportation, and smart cities. Terminal device 120 may be a mobile phone, tablet computer, computer with wireless transceiver capabilities, wearable device, vehicle, drone, helicopter, airplane, ship, robot, robotic arm, or smart home appliance.

[0086] In the embodiments of the present application, the functions of the access network device 110 may also be performed by a module (such as a chip) in the access network device 110, or by a control subsystem that includes the functions of the access network device 110. The control subsystem that includes the functions of the access network device 110 here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, intelligent transportation, and smart city. The functions of the terminal device 120 may also be performed by a module (such as a chip or a modem) in the terminal device 120, or by a device that includes the functions of the terminal device 120. The functions of the core network device 210 may also be performed by a module (such as a chip or a modem) in the core network device 210, or by a device that includes the functions of the core network device 210. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the access network device 110, the terminal device 120, and the core network device 210.

[0087] The above briefly introduces the communication system applicable to the embodiments of the present application. The following introduces the relevant technical solutions involved in the embodiments of the present application.

[0088] 1) Energy efficiency of terminal equipment

[0089] The design and development of 5G mobile communication systems are targeted at mobile phones and specific vertical use cases. In addition to latency, reliability, and feasibility, the energy efficiency of terminal devices is also crucial. Currently, terminal devices may require weekly or daily charging, depending on individual usage. Generally, a terminal device consumes tens of milliwatts of power in RRC idle or inactive states, and hundreds of milliwatts in RRC connected states. Therefore, extending terminal device battery life is essential for improving terminal device energy efficiency.

[0090] Energy efficiency is even more critical for end devices without continuous power sources, such as those using small rechargeable batteries and single-coin batteries. In vertical use cases, sensors and actuators are widely deployed for monitoring, measurement, and charging. Typically, their batteries are non-rechargeable and are expected to last for at least several years. In some IoT scenarios, such as wearable devices including smartwatches, rings, electronic health-related devices, and medical monitoring equipment, maintaining a battery life of 1-2 weeks while maintaining performance at typical battery capacities is challenging.

[0091] The power consumption of a terminal device depends on the length of its configured wake-up cycle. For example, in the RRC idle state, the device's power consumption depends on the configured paging cycle. The longer the paging cycle configured for the terminal device, the longer the terminal device will be in sleep mode, thereby reducing power consumption and achieving energy savings. To meet the aforementioned battery life requirements, a very long extended discontinuous reception (eDRX) cycle is expected to be used as the terminal device's paging cycle. However, while using eDRX to achieve higher energy efficiency, it also results in higher latency, making it unsuitable for services that require both long battery life and low latency. For example, in a fire and firefighting use case, fire shutters should be closed and fire sprinklers should be activated by actuators within 1-2 seconds after sensors detect a fire. A long eDRX cycle cannot meet the latency requirements, making eDRX unsuitable for scenarios with high latency requirements. Therefore, research on technologies that can support ultra-low power mechanisms while achieving ultra-low latency is particularly important.

[0092] Currently, terminal devices need to wake up periodically during each discontinuous reception (DRX) cycle. If a terminal device is awake but no signaling or data services are being transmitted during the awake period, it is considered an invalid wakeup, and the power consumption during this period dominates the terminal device's overall power consumption. If the terminal device wakes up only when signaling or data services are required, such as when receiving its own paging message, the terminal device's power consumption can be significantly reduced, achieving energy conservation.

[0093] 2) Paging Early Indicator (PEI)

[0094] In order to further reduce the power consumption of the terminal device in the RRC idle state, an energy-saving technology is proposed: PEI. The principle of PEI is: the terminal device can receive PEI before receiving the paging message, and PEI can indicate whether the terminal device needs to receive the paging message in the next paging occasion (PO). In other words, the paging occasion can be used to receive the paging message, that is, the paging occasion can be understood as the occasion for receiving the paging message. As shown in Figure 2, a schematic diagram of a PEI provided in an embodiment of the present application is shown. The terminal device receives PEI#1 at T1, and PEI#1 indicates that the terminal device receives the paging message at T2 and T3; the terminal device receives PEI#2 at T4, and PEI#2 indicates that the terminal device does not receive the paging message at T5.

[0095] PEI can reduce the probability of terminal devices monitoring paging messages by grouping terminal devices, thereby further achieving energy-saving effects. The maximum number of subgroups (subgroups) obtained by grouping all terminal devices is 8. As shown in Figure 3, a schematic diagram of a grouping scenario provided by an embodiment of the present application is provided. If the paging timings of terminal device #1, terminal device #2, terminal device #3, and terminal device #4 are all PO0, terminal device #1 and terminal device #2 belong to subgroup #0, and terminal device #3 and terminal device #4 belong to subgroup #1, then PEI can use each bit (bit) to represent the wake-up status of each subgroup in the form of a bitmap. If the value of the bit corresponding to subgroup #0 is 1, it means that the terminal devices belonging to subgroup #0 are all awake, that is, terminal device #0 and terminal device #1 are awakened at the position of PO0 and monitor paging messages. If the value of the bit corresponding to subgroup #1 is 0, it means that the terminal devices belonging to subgroup #1 are not awake, that is, terminal device #3 and terminal device #4 do not need to be awakened at the position of PO0.

[0096] 3) Identification of the subgroup to which the terminal device belongs

[0097] Currently, a terminal device can determine the ID of the subgroup to which it belongs in the following two ways:

[0098] Method 1: When the terminal device supports core network device grouping.

[0099] The core network device can send the identifier of the subgroup to the terminal device, and the terminal device can receive the identifier of the subgroup from the core network device. The identifier of the subgroup to which the terminal device belongs can range from 0 to 7, i.e., the maximum number of subgroups obtained by the core network device grouping is 8.

[0100] Method 2: The terminal device supports grouping based on the serial number (or identification) of the terminal device.

[0101] The terminal device can determine the identifier of the subgroup to which the terminal device belongs based on the following formula: SubgroupID=(floor(UEID / (N*N s )))mod(subgroupsNumForUEID)+ (subgroupsNumPerPO-subgroupsNumForUEID)

[0102] Wherein, SubgroupID is the identifier of the subgroup to which the first terminal device belongs.

[0103] Floor is the rounding down operator.

[0104] N is the number of paging frames (PF) included in a discontinuous reception cycle of the first terminal device.

[0105] N s The number of paging occasions included in a paging frame.

[0106] mod is the modulo operator.

[0107] UEID is the serial number of the first terminal device. The value of UEID is derived based on K1 and K2. K1 is the fifth-generation communication system temporary mobile subscriber identity (5G-S-TMSI) of the first terminal device, and the value of K2 is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle. For example, if the discontinuous reception cycle of the first terminal device is not an extended discontinuous reception cycle, the value of K2 is 1, and UEID = K1 mod 8192. If the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, the value of K2 is 4, and UEID = K1 mod 32768. 8192 = 1024*8. This can be understood as UEID = 5G-S-TMSI mod X. If the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, the value of X is 32768. If the discontinuous reception cycle of the first terminal device is not an extended discontinuous reception cycle, the value of X is 8192.

[0108] subgroupsNumForUEID is the number of subgroups obtained by grouping based on the sequence number of the terminal device corresponding to a paging occasion. subgroupsNumForUEID can be carried in a system information block (SIB) sent by the access network device to the terminal device.

[0109] subgroupsNumPerPO is the sum of the number of subgroups obtained by grouping based on the sequence number of the terminal device and the number of subgroups obtained by grouping based on the core network corresponding to a paging occasion. subgroupsNumPerPO can be carried in the SIB sent by the access network device to the terminal device.

[0110] If the terminal device is not configured with subgroupsNumForUEID, the terminal device can determine the identifier of the subgroup to which the terminal device belongs through method one.

[0111] If the terminal device configures both subgroupsNumForUEID and subgroupsNumPerPO, and subgroupsNumForUEID and subgroupsNumPerPO are the same, the terminal device can determine the identifier of the subgroup to which the terminal device belongs through method 2.

[0112] If the terminal device is configured with both subgroupsNumForUEID and subgroupsNumPerPO, and subgroupsNumForUEID is less than subgroupsNumPerPO, the terminal device can determine the identifier of the subgroup to which the terminal device belongs through method one when it receives the identifier of the subgroup to which the terminal device belongs from the core network device, and can determine the identifier of the subgroup to which the terminal device belongs through method two when it does not receive the identifier of the subgroup to which the terminal device belongs from the core network device.

[0113] If the terminal device is not configured with subgroupsNumForUEID and subgroupsNumPerPO, the terminal device may not determine the identity of the subgroup to which the terminal device belongs and blindly detect the paging message at the paging opportunity.

[0114] In addition, the value range of the serial number of the terminal device is related to the identifier of the subgroup to which the terminal device belongs. For example, the serial number of the terminal device and the identifier of the subgroup to which the terminal device belongs satisfy the following formula:

[0115] UEID is the serial number of the terminal device. N is the number of paging frames included in a discontinuous reception cycle of the terminal device. s is the number of paging occasions included in a paging frame. subgroupsNumForUEID is the number of subgroups corresponding to a paging occasion, obtained by grouping terminal devices by sequence number. m is a positive integer. SubgroupID is the identifier of the subgroup to which the terminal device belongs. subgroupsNumPerPO is the sum of the number of subgroups corresponding to a paging occasion, obtained by grouping terminal devices by sequence number, and the number of subgroups obtained by grouping by the core network.

[0116] 4) Low power-wake up signal (LP-WUS)

[0117] Further energy savings can be achieved by introducing a separate low-power wake-up receiver (LP-WUR). Figure 4 illustrates the detailed workflow. The LP-WUR remains enabled by default, while the main receiver remains disabled or in deep sleep. The LP-WUR receives the LP-WUS, which wakes up the main receiver. Once awake, the main receiver can be used for data transmission, for example.

[0118] LP-WUS can reduce the probability of terminal devices waking up the main receiver by grouping terminal devices, thereby further achieving energy-saving effects. However, if LP-WUS follows the grouping rules of PEI, the maximum number of subgroups obtained by grouping all terminal devices is 8. In the case where the number of terminal devices that need to be grouped is large, the number of terminal devices included in each subgroup may be large; or, as shown in Figure 5, the number of terminal devices included in some subgroups may be large, and the number of terminal devices included in some subgroups may be small. For a terminal device, as long as any terminal device included in the subgroup where the terminal device is located needs to wake up the main receiver, each terminal device included in the subgroup where the terminal device is located needs to wake up the main receiver. Therefore, whether the number of terminal devices included in each subgroup is large or the number of terminal devices included in some subgroups is large, the false alarm rate of the terminal device will increase, causing the terminal device to generate invalid power consumption, which is not conducive to energy saving of the terminal device.

[0119] In view of this, an embodiment of the present application provides a communication method for reducing the power consumption of a terminal device.

[0120] In the embodiments of this application, "when," "if," and "if" all indicate that the device will perform a corresponding action under certain objective circumstances. They do not limit the time, do not require the device to perform a judgment action when implemented, and do not imply any other limitations. Unless otherwise specified, "if" and "if" are interchangeable, and "when" and "under the circumstances" are interchangeable. "When" and "if" are interchangeable.

[0121] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0122] In this document, “used to indicate” can include being used for direct indication and being used for indirect indication. For example, when describing that a certain indication information is used to indicate information I, it can include that the indication information directly indicates I or indirectly indicates I, but it does not mean that the indication information must carry I.

[0123] The information indicated by the indication information is called information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, directly indicating the information to be indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, it is also possible to use the arrangement order of each piece of information that is pre-agreed (such as specified by the protocol) to achieve the indication of specific information, thereby reducing the indication overhead to a certain extent. At the same time, it is also possible to identify the common parts of each piece of information and indicate them uniformly to reduce the indication overhead caused by indicating the same information separately. For example, those skilled in the art should understand that the precoding matrix is ​​composed of precoding vectors, and the precoding vectors in the precoding matrix may have the same parts in terms of composition or other properties.

[0124] In addition, the specific indication method can also be various existing indication methods, such as but not limited to the above-mentioned indication methods and various combinations thereof. The specific details of the various indication methods can be referred to the prior art and will not be repeated herein. As can be seen from the above, for example, when it is necessary to indicate multiple information of the same type, there may be a situation where the indication methods for different information are different. In the specific implementation process, the required indication method can be selected according to specific needs. The embodiment of the present application does not limit the selected indication method. In this way, the indication method involved in the embodiment of the present application should be understood to cover various methods that can enable the party to be indicated to obtain the information to be indicated.

[0125] In the embodiments of the present application, "sending" and "receiving" indicate the direction of signal transmission. For example, "sending information to XX" can be understood as the destination of the information being XX, which can include direct sending through the air interface, and indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as the source of the information being YY, which can include direct receiving from YY through the air interface, and indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface.

[0126] In other words, sending and receiving can be performed between devices, for example, between an access network device and a first terminal device, or can be performed within a device, for example, sending or receiving between components, modules, chips, software modules or hardware modules within the device through a bus, wiring or interface.

[0127] It is understandable that information may be processed between the source and destination of information transmission, such as coding, modulation, etc., but the destination can understand the valid information from the source. Similar expressions in this application can be understood similarly and will not be repeated.

[0128] In the embodiments of the present application, the number of nouns, unless otherwise specified, means "singular noun or plural noun", that is, "one or more". "At least one" means one or more, and "plural" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B means the following situations: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. For example, A / B means: A or B. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b and / or c means the following situations: a exists alone, b exists alone, c exists alone, a and b exist at the same time, a and c exist at the same time, b and c exist at the same time, and a, b and c exist at the same time, where a, b, and c can be singular or plural.

[0129] The ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish between multiple objects, and are not used to limit the size, content, order, timing, priority or importance of multiple objects. For example, the first monitoring timing information and the second monitoring timing information refer to two different information, and do not indicate the difference in content, priority or importance of the two information. For a technical feature, "A", "B", "C" and "D" are used to distinguish the technical features in the technical feature, and there is no order of precedence or order of size between the technical features described by "A", "B", "C" and "D". For example, the method A and method B in this article are only for distinguishing different contents, and do not limit the order of precedence or order of size, priority or importance, etc. between method A and method B.

[0130] The solution provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings. In the following description, the communication method provided by the embodiment of the present application is applied to the communication system shown in Figure 1 as an example. The communication system and application scenario described in the embodiment of the present application are intended to more clearly illustrate the technical solution of the embodiment of the present application, and do not constitute a limitation on the technical solution provided by the embodiment of the present application. It is known to those skilled in the art that with the evolution of the communication system and the emergence of new application scenarios, the technical solution provided by the embodiment of the present application is also applicable to similar technical problems.

[0131] The following describes the communication method provided in an embodiment of the present application by an access network device, a first terminal device, and a core network device as an example. The steps performed by the access network device can be implemented by the access network device itself, or by a component in the access network device (such as a baseband chip, or other processing units or processor modules). For example, the access network device can be the access network device in Figure 1, such as the access network device 110, or it can also be a chip (system) in the access network device in Figure 1. The steps performed by the first terminal device can be implemented by the first terminal device itself, or by a component in the first terminal device (such as a chip, a processing unit, or a processor module). The first terminal device can be the terminal device shown in Figure 1, such as the terminal device 120, or it can also be a chip (system) in the terminal device in Figure 1. The steps performed by the core network device can be implemented by the core network device itself, or by a component in the core network device (such as a chip, a processing unit, or a processor module). The core network device can be the core network device shown in Figure 1, such as the core network device 210, or it can also be a chip (system) in the core network device in Figure 1. When the communication method is implemented by a component in an access network device, a first terminal device, or a core network device, the receiving and sending steps therein can be understood as the communication between the component and other components, for example, the communication between the baseband chip and the radio frequency circuit, etc. The processing performed by a single execution subject in the embodiment of the present application can also be divided into executions by multiple execution subjects, and these execution subjects can be logically and / or physically separated. For example, the processing performed by the access network device can be divided into executions by at least one of the CU, DU, and RU.

[0132] The following describes the situation according to whether the first terminal device supports grouping at least one terminal device based on the serial number of each terminal device in at least one terminal device.

[0133] In the first embodiment, a first terminal device supports grouping at least one terminal device based on a serial number of each terminal device in at least one terminal device, wherein the at least one terminal device includes the first terminal device.

[0134] For example, refer to Figure 6, which is a flow chart of a communication method provided by an embodiment of the present application. Figure 6 introduces the method from the perspective of the interaction between the access network device and the first terminal device. It should be understood that the communication method can also be implemented by other devices, such as a chip or communication device with communication functions. It should be noted that the embodiment of the present application only takes the execution through the access network device and the first terminal device as an example, and is not limited to the access network device and the first terminal device. For example, the embodiment of the present application can also be executed by more terminal devices. When more terminal devices are involved, the execution process of each terminal device in these more terminal devices is the same. As shown in Figure 6, the process of the communication method includes the following steps.

[0135] S601: A first terminal device determines a first identifier of a subgroup to which the first terminal device belongs based on a first serial number of the first terminal device.

[0136] In an embodiment of the present application, the first serial number of the first terminal device can be obtained based on the first information.

[0137] The first information may include first subgroup information. The first subgroup information may be used to indicate the maximum value of the sum of the number of first subgroups and the number of second subgroups corresponding to a monitoring occasion (MO); or the first subgroup information may be used to indicate the maximum value of the number of first subgroups corresponding to a monitoring occasion; or the first subgroup information may be used to indicate the maximum value of the number of second subgroups corresponding to a monitoring occasion, and this embodiment of the application is not limited thereto. The first subgroup information may be (pre) configured; or the first subgroup information may be defined by the standard; or the first subgroup information may be determined in advance by negotiation between the first terminal device and the access network device; or the first subgroup information may be sent by the access network device to the first terminal device, for example, the first subgroup information may be carried in one or more of RRC signaling, downlink control information (DCI), uplink control information (UCI), MAC control element (CE), SIB, LP-WUS, low power-synchronization signal (LP-SS), paging message, physical downlink control channel (PDCCH), physical downlink shared channel (PDSCH) or newly added signaling, and the embodiments of the present application do not limit this.

[0138] The monitoring opportunity (also called listening opportunity or detection opportunity) can be used to monitor the LP-WUS, that is, the monitoring opportunity can be understood as the opportunity to monitor the LP-WUS. If multiple LP-WUSs can be monitored within one monitoring opportunity, then the maximum value of the sum of the number of the first subgroup and the number of the second subgroup corresponding to the monitoring opportunity, or the maximum value of the number of the first subgroup, or the maximum value of the number of the second subgroup corresponding to one LP-WUS monitored at the monitoring opportunity actually refers to the maximum value of the sum of the number of the first subgroup and the number of the second subgroup, or the maximum value of the number of the first subgroup, or the maximum value of the number of the second subgroup corresponding to one LP-WUS monitored at the monitoring opportunity; if one LP-WUS can be monitored within one monitoring opportunity, then the maximum value of the sum of the number of the first subgroup and the number of the second subgroup, or the maximum value of the number of the first subgroup, or the maximum value of the number of the second subgroup corresponding to the monitoring opportunity actually refers to the maximum value of the sum of the number of the first subgroup and the number of the second subgroup, or the maximum value of the number of the first subgroup, or the maximum value of the number of the second subgroup corresponding to the one LP-WUS monitored at the monitoring opportunity.

[0139] The first subgroup is a subgroup obtained by grouping at least one terminal device based on the serial number of each terminal device in the at least one terminal device, and the second subgroup is a subgroup obtained by grouping at least one terminal device by a core network device, and the at least one terminal device includes the first terminal device.

[0140] In a possible implementation, the first information may further include, but is not limited to, one or more of the following information:

[0141] The fifth-generation communication system temporary mobile user identity of the first terminal device. Among them, the fifth-generation communication system temporary mobile user identity of the first terminal device is a unique identifier for the first terminal device. The fifth-generation communication system temporary mobile user identity of the first terminal device can be (pre-) configured; or the fifth-generation communication system temporary mobile user identity of the first terminal device can also be standard-defined; or the fifth-generation communication system temporary mobile user identity of the first terminal device can also be negotiated and determined in advance by the first terminal device and the access network device; or the fifth-generation communication system temporary mobile user identity of the first terminal device can also be sent to the first terminal device by the access network device, for example, the fifth-generation communication system temporary mobile user identity of the first terminal device can be carried in one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH or newly added signaling, and the embodiments of the present application are not limited to this;

[0142] First monitoring opportunity information. The first monitoring opportunity information is used to determine the maximum number of monitoring opportunities included in a non-continuous reception cycle of the first terminal device. It can be understood that the first terminal device can determine the maximum number of monitoring opportunities included in a non-continuous reception cycle of the first terminal device based on the first monitoring opportunity information. The first monitoring opportunity information can be (pre) configured; or the first monitoring opportunity information can also be defined by the standard; or the first monitoring opportunity information can also be negotiated and determined in advance by the first terminal device and the access network device; or the first monitoring opportunity information can also be sent to the first terminal device by the access network device, for example, the first monitoring opportunity information can be carried in one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH or newly added signaling, and the embodiments of the present application do not limit this;

[0143] The first parameter. The first parameter is related to whether the discontinuous reception period of the first terminal device is an extended discontinuous reception period. For example, if the discontinuous reception period of the first terminal device is not an extended discontinuous reception period, the first parameter is 1; if the discontinuous reception period of the first terminal device is an extended discontinuous reception period, the first parameter is 4. The first parameter may be (pre) configured; or the first parameter may be defined by the standard; or the first parameter may be determined in advance by negotiation between the first terminal device and the access network device; or the first parameter may be sent to the first terminal device by the access network device, for example, the first parameter may be carried in one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH or newly added signaling, and the embodiments of the present application do not limit this.

[0144] During specific implementation, the first terminal device may obtain the first serial number of the first terminal device through one or more of the following methods:

[0145] Method A: The access network device may determine the first sequence number of the first terminal device based on the first information; the access network device may send the first information to the first terminal device, and accordingly, the first terminal device may receive the first information from the access network device; the first terminal device may determine the first sequence number of the first terminal device based on the first information. The first information may be carried in one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH, or newly added signaling.

[0146] Method B: The access network device may determine the first sequence number of the first terminal device based on the first information; the access network device may send the first sequence number of the first terminal device to the first terminal device, and correspondingly, the first terminal device may receive the first sequence number of the first terminal device from the access network device. The first sequence number of the first terminal device may be carried in one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH, or newly added signaling.

[0147] Method C: The first information may be (pre-)configured, defined by a standard, or agreed upon between the first terminal device and the access network device. The first sequence number of the first terminal device obtained based on the first information may be (pre-)configured, defined by a standard, or agreed upon between the first terminal device and the access network device.

[0148] For example, when the first terminal device or the access network device determines the first serial number of the first terminal device based on the first information, the calculation formula of the first serial number of the first terminal device can be specifically: UEID_LPWUS=K1 mod(K2*K3*subgroupsMaxNumPerOccasion LPWUS )

[0149] Wherein, UEID_LPWUS is the first serial number of the first terminal device. K1 is the temporary mobile user identifier of the fifth generation communication system of the first terminal device. The value of K2 is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle. For example, if the discontinuous reception cycle of the first terminal device is not an extended discontinuous reception cycle, the value of K2 is 1, UEID_LPWUS = K1 mod (K3 * subgroupsMaxNumPerOccasion LPWUS ), if the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, the value of K2 is 4, UEID_LPWUS=K1 mod(4*K3*subgroupsMaxNumPerOccasion LPWUS ). K3 is the maximum number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device. subgroupsMaxNumPerOccasion LPWUS It is the maximum value of the sum of the number of first subgroups and / or the number of second subgroups corresponding to one monitoring opportunity.

[0150] In one possible implementation, the first terminal device may determine the first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device, the second monitoring opportunity information, and the second subgroup information. During a specific implementation, the first terminal device may determine the first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device, the second monitoring opportunity information, the second subgroup information, and the second parameter.

[0151] The second monitoring opportunity information, the second subgroup information, and the second parameter for determining the first identifier of the subgroup to which the first terminal device belongs are respectively introduced below:

[0152] 1) The second monitoring opportunity information is used to determine the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device. It can be understood that the first terminal device can determine the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device based on the second monitoring opportunity information.

[0153] The second monitoring timing information may be (pre) configured; or the second monitoring timing information may be defined by a standard; or the second monitoring timing information may be determined in advance by negotiation between the first terminal device and the access network device; or the second monitoring timing information may be sent by the access network device to the first terminal device. For example, the second monitoring timing information may be carried in one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH or newly added signaling. The embodiments of the present application do not impose any restrictions on this.

[0154] For example, as shown in FIG7 , the present application may further perform the following steps before performing S601 :

[0155] S601a: The access network device sends first indication information to the first terminal device. Correspondingly, the first terminal device receives the first indication information from the access network device. The first indication information is used to indicate the second monitoring opportunity information. The first indication information can be RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH, or newly added signaling.

[0156] Optionally, the first terminal device may further determine the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device based on the third parameter and the scaling factor. In a specific implementation, the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device may be the product of the third parameter and the scaling factor.

[0157] The third parameter may be the product of the number of paging frames included in a discontinuous reception cycle of the first terminal device and the number of paging opportunities included in a paging frame, that is, the third parameter may be understood as the number of paging opportunities included in the first discontinuous reception cycle of the first terminal device. The paging opportunity may be used to receive a paging message, that is, the paging opportunity may be understood as the opportunity for receiving a paging message.

[0158] The proportional factor can be understood as the correspondence between the monitoring opportunity and the paging opportunity (or called a mapping relationship). When the proportional factor is 1, the monitoring opportunity is equivalent to the paging opportunity, that is, the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device is equal to the product of the number of paging frames included in a discontinuous reception cycle of the first terminal device and the number of paging opportunities included in a paging frame. At this time, the first terminal device can be in the RRC idle state. When the proportional factor is not 1, the monitoring opportunity is not equivalent to the paging opportunity, that is, the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device is not equal to the product of the number of paging frames included in a discontinuous reception cycle of the first terminal device and the number of paging opportunities included in a paging frame. At this time, the first terminal device can be in the RRC connected state. The proportional factor may be (pre) configured; or the proportional factor may be defined by the standard; or the proportional factor may be determined in advance by negotiation between the first terminal device and the access network device; or the proportional factor may be sent by the access network device to the first terminal device. For example, the proportional factor may be carried in one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH or newly added signaling. The embodiments of the present application do not limit this.

[0159] For example, N1=s*N*Ns, N1 is the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device, N is the number of paging frames included in a discontinuous reception cycle of the first terminal device, Ns is the number of paging opportunities included in a paging frame, and s is the proportional factor.

[0160] 2) The second subgroup information may be used to indicate the number of first subgroups corresponding to one monitoring opportunity.

[0161] The second subgroup information may be (pre) configured; or the second subgroup information may be defined by a standard; or the second subgroup information may be determined in advance by negotiation between the first terminal device and the access network device; or the second subgroup information may be sent by the access network device to the first terminal device. For example, the second subgroup information may be carried in one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH or newly added signaling. The embodiments of the present application do not limit this.

[0162] For example, as shown in FIG7 , the present application may further perform the following steps before performing S601 :

[0163] S601b: The access network device sends second indication information to the first terminal device. Accordingly, the first terminal device receives the second indication information from the access network device. The second indication information includes second subgroup information. The second indication information may be one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH, or newly added signaling.

[0164] If the first terminal device only supports grouping at least one terminal device based on the serial number of each terminal device of the at least one terminal device, then the number of first subgroups corresponding to one monitoring opportunity is actually the number of all subgroups obtained by grouping at least one terminal device corresponding to the first monitoring opportunity. If the first terminal device supports grouping at least one terminal device based on the serial number of each terminal device of the at least one terminal device, and supports the core network device to group at least one terminal device, then the sum of the number of first subgroups and the number of second subgroups corresponding to one monitoring opportunity is the number of all subgroups obtained by grouping at least one terminal device corresponding to the first monitoring opportunity.

[0165] 3) The second parameter may be 0, or the second parameter may be related to the second subgroup information and the third subgroup information.

[0166] The third subgroup information can be used to indicate the sum of the number of first subgroups and the number of second subgroups corresponding to a monitoring opportunity. The third subgroup information can be (pre) configured; or the third subgroup information can also be defined by the standard; or the third subgroup information can also be negotiated and determined in advance by the first terminal device and the access network device; or the third subgroup information can also be sent by the access network device to the first terminal device. For example, the third subgroup information can be carried in one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH or newly added signaling, and the embodiments of the present application are not limited to this.

[0167] For example, as shown in FIG7 , the present application may further perform the following steps before performing S601 :

[0168] S601c: The access network device sends third indication information to the first terminal device. Accordingly, the first terminal device receives the third indication information from the access network device. The third indication information includes third subgroup information. The third indication information may be one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH, or newly added signaling.

[0169] If the first terminal device only supports grouping at least one terminal device based on the serial number of each terminal device of at least one terminal device, the second parameter is 0. If the first terminal device supports grouping at least one terminal device based on the serial number of each terminal device of at least one terminal device, and supports the core network device to group at least one terminal device, the second parameter is determined according to the order between the identifier of the first subgroup and the identifier of the second subgroup. For example. When the identifier of the first subgroup is before the identifier of the second subgroup, the second parameter is 0. When the identifier of the first subgroup is after the identifier of the second subgroup, the second parameter is related to the second subgroup information and the third subgroup information. For example, the second parameter is the difference between the sum of the number of first subgroups and the number of second subgroups corresponding to one monitoring opportunity and the number of first subgroups corresponding to one monitoring opportunity, that is, the value of the second parameter is the number of second subgroups corresponding to one monitoring opportunity.

[0170] Exemplarily, when the first terminal device determines the first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device, the second monitoring opportunity information, the second subgroup information, and the second parameter, the calculation formula (1) of the first identifier of the subgroup to which the first terminal device belongs can be specifically: SubgroupID1 LPWUS =(floor(UEID_LPWUS / N1))mod(subgroupsNumForUEID LPWUS )+offset

[0171] Among them, SubgroupID1 LPWUS is the first identifier of the subgroup to which the first terminal device belongs. UEID_LPWUS is the first serial number of the first terminal device. N1 is the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device. LPWUS The number of the first subgroup corresponding to a monitoring opportunity. The value of offset is 0 or the value of offset is equal to subgroupsNumForUEID LPWUS and subgroupsNumPerOccasion LPWUS Related (e.g. offset = subgroupsNumPerOccasionLPWUS -subgroupsNumForUEID LPWUS ).subgroupsNumPerOccasion LPWUS It is the sum of the number of the first subgroup and the number of the second subgroup corresponding to one monitoring opportunity.

[0172] Exemplarily, the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device determined by the second monitoring opportunity information is the product of the third parameter and the proportional factor, the proportional factor is 1, the second parameter is related to the second subgroup information and the third subgroup information, when the first terminal device determines the first identifier of the subgroup to which the first terminal device belongs based on the first sequence number of the first terminal device, the second monitoring opportunity information, the second subgroup information and the second parameter, the calculation formula (2) of the first identifier of the subgroup to which the first terminal device belongs can be specifically: SubgroupID1 LPWUS =(floor(UEID_LPWUS / (N*Ns)))mod(subgroupsNumForUEID LPWUS )+ subgroupsNumPerOccasion LPWUS -subgroupsNumForUEID LPWUS

[0173] Among them, SubgroupID1 LPWUS The first identifier of the subgroup to which the first terminal device belongs.

[0174] UEID_LPWUS is the first serial number of the first terminal device. The value of UEID_LPWUS is consistent with K1, K2, K3, subgroupsMaxNumPerOccasion LPWUS K1 is the temporary mobile user identification of the fifth generation communication system of the first terminal device. The value of K2 is related to whether the discontinuous reception period of the first terminal device is an extended discontinuous reception period. For example, if the discontinuous reception period of the first terminal device is not an extended discontinuous reception period, the value of K2 is 1, UEID_LPWUS=K1 mod(K3*subgroupsMaxNumPerOccasion LPWUS ), if the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, the value of K2 is 4, UEID_LPWUS=K1 mod(4*K3*subgroupsMaxNumPerOccasion LPWUS ). K3 is the maximum number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device. subgroupsMaxNumPerOccasion LPWUSIt is the maximum value of the sum of the number of first subgroups and / or the number of second subgroups corresponding to one monitoring opportunity.

[0175] N is the number of paging frames included in a discontinuous reception cycle of the first terminal device.

[0176] Ns is the number of paging occasions included in a paging frame.

[0177] subgroupsNumForUEID LPWUS is the number of first subgroups corresponding to one monitoring opportunity.

[0178] subgroupsNumPerOccasion LPWUS It is the sum of the number of the first subgroup and the number of the second subgroup corresponding to one monitoring opportunity.

[0179] In the calculation formula (2) of the first identifier of the subgroup to which the first terminal device belongs, if the radio network temporary identifier (RNTI) representing the serial number of the terminal device is 16 bits, then subgroupsNumPerOccasion LPWUS The value of can be 16. For example, if LP-WUS is also 16 bits, LP-WUS can use a bitmap to simultaneously indicate whether the terminal devices included in each of the 16 subgroups wake up the main receiver, or LP-WUS can also indicate whether the terminal devices included in any one of the 16 subgroups wake up the main receiver. For another example, if LP-WUS is 20 bits, LP-WUS can use a bitmap to simultaneously indicate whether the terminal devices included in each of the 16 subgroups wake up the main receiver, or LP-WUS can also indicate whether the terminal devices included in any one of the 16 subgroups wake up the main receiver. For another example, if LP-WUS is 10 bits, LP-WUS can use a bitmap to simultaneously indicate whether the terminal devices included in any 10 of the 16 subgroups wake up the main receiver, or LP-WUS can also indicate whether the terminal devices included in any one of the 16 subgroups wake up the main receiver. The embodiments of the present application are not limited to this.

[0180] If the RNTI representing the serial number of the terminal device is 8 bits, then subgroupsNumPerOccasion LPWUSThe value of can be 8. In this case, if the maximum number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device is 1024, the first identifier of the subgroup to which the first terminal device belongs is the same as the second identifier of the subgroup to which the first terminal device belongs. The second identifier of the subgroup to which the first terminal device belongs is calculated using the PEI grouping rule.

[0181] According to the above solution, the first serial number of the first terminal device can be obtained based on the maximum value of the sum of the number of the first subgroup and the number of the second subgroup. The maximum value of the sum of the number of the first subgroup and the number of the second subgroup is not fixed. For example, the number of terminal devices included in each subgroup can be reduced by increasing the maximum value of the sum of the number of the first subgroup and the number of the second subgroup. Since the first identifier of the subgroup to which the first terminal device belongs is obtained based on the first serial number of the first terminal device, when grouping at least one terminal device including the first terminal device, the number of terminal devices included in the subgroup to which the first terminal device belongs can be reduced, thereby reducing the false alarm rate of the first terminal device and the power consumption of the first terminal device.

[0182] S602. The access network device determines a first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device.

[0183] In an embodiment of the present application, the process of the access network device determining the first identifier of the subgroup to which the first terminal device belongs is similar to the process of the first terminal device determining the first identifier of the subgroup to which the first terminal device belongs described in S601 above, and will not be repeated here.

[0184] In a possible implementation, the first terminal device may further determine the second identifier of the subgroup to which the first terminal device belongs based on the second serial number of the first terminal device, the third parameter, the fourth subgroup information, and the fifth subgroup information.

[0185] The second serial number of the first terminal device, the fourth subgroup information, and the fifth subgroup information used to determine the second identifier of the subgroup to which the first terminal device belongs are respectively introduced below:

[0186] 1) The second serial number of the first terminal device can be obtained based on the fifth-generation communication system temporary mobile user identity of the first terminal device and the first parameter; or, the second serial number of the first terminal device can be the fifth-generation communication system temporary mobile user identity of the first terminal device, and this embodiment of the application does not limit this.

[0187] Exemplarily, when the second serial number of the first terminal device is determined based on the fifth generation communication system temporary mobile user identity of the first terminal device and the first parameter, the calculation formula of the second serial number of the first terminal device can be specifically: UEID = K1 mod (K2 * 8192)

[0188] Among them, UEID is the second serial number of the first terminal device. K1 is the temporary mobile user identification of the fifth-generation communication system of the first terminal device. The value of K2 is related to whether the discontinuous reception period of the first terminal device is an extended discontinuous reception period. For example, if the discontinuous reception period of the first terminal device is not an extended discontinuous reception period, the value of K2 is 1, UEID = K1 mod 8192; if the discontinuous reception period of the first terminal device is an extended discontinuous reception period, the value of K2 is 4, UEID = K1 mod 32768. 8192 = 1024*8.

[0189] 2) The fourth subgroup information is used to indicate the number of first subgroups corresponding to one paging occasion.

[0190] The fourth subgroup information may be (pre) configured; or the fourth subgroup information may be defined by the standard; or the fourth subgroup information may be determined in advance by negotiation between the first terminal device and the access network device; or the fourth subgroup information may be sent by the access network device to the first terminal device. For example, the fourth subgroup information may be carried in one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH or newly added signaling. The embodiments of the present application do not limit this.

[0191] 3) The fifth subgroup information is used to indicate the sum of the number of first subgroups and the number of second subgroups corresponding to one paging occasion, wherein the maximum value of the sum of the number of first subgroups and the number of second subgroups corresponding to one paging occasion is 8.

[0192] The fifth subgroup information may be (pre) configured; or the fifth subgroup information may be defined by the standard; or the fifth subgroup information may be determined in advance by negotiation between the first terminal device and the access network device; or the fifth subgroup information may be sent by the access network device to the first terminal device. For example, the fifth subgroup information may be carried in one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH or newly added signaling. The embodiments of the present application do not limit this.

[0193] For example, when the first terminal device determines the second identifier of the subgroup to which the first terminal device belongs based on the second serial number, the third parameter, the fourth subgroup information, and the fifth subgroup information of the first terminal device, the calculation formula for the second identifier of the subgroup to which the first terminal device belongs can be specifically: SubgroupID2 LPWUS =(floor(UEID / (N*N s)))mod(subgroupsNumForUEID)+ (subgroupsNumPerPO-subgroupsNumForUEID)

[0194] Among them, SubgroupID2 LPWUS is the second identifier of the subgroup to which the first terminal device belongs, UEID is the second serial number of the first terminal device, the value of UEID is obtained based on K1 and K2, K1 is the temporary mobile user identifier of the fifth generation communication system of the first terminal device, the value of K2 is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, N is the number of paging frames included in a discontinuous reception cycle of the first terminal device, N s is the number of paging occasions included in a paging frame, subgroupsNumForUEID is the number of first subgroups corresponding to a paging occasion, and subgroupsNumPerPO is the sum of the number of first subgroups and the number of second subgroups corresponding to a paging occasion.

[0195] In one possible implementation, the first terminal device may also determine the third identifier of the subgroup to which the first terminal device belongs based on the second identifier, second subgroup information, fifth subgroup information and fourth parameter of the subgroup to which the first terminal device belongs, after determining the second identifier of the subgroup to which the first terminal device belongs based on the second serial number, third parameter, fourth subgroup information and fifth subgroup information of the first terminal device.

[0196] The fourth parameter may be obtained based on the second serial number of the first terminal device and the second subgroup information. For example, offset_LPWUS=UEID mod subgroupsNumForUEID LPWUS , offset_LPWUS is the fourth parameter, UEID is the second serial number of the first terminal device, subgroupsNumForUEID LPWUS The number of first subgroups corresponding to one monitoring opportunity determined for the second subgroup information.

[0197] Alternatively, the fourth parameter may also be obtained based on the second serial number of the first terminal device and the fourth subgroup information. For example, offset_LPWUS = UEID mod subgroupsNumForUEID, where offset_LPWUS is the fourth parameter, UEID is the second serial number of the first terminal device, and subgroupsNumForUEID is the number of first subgroups corresponding to a paging occasion determined by the fourth subgroup information.

[0198] Alternatively, the fourth parameter may be (pre) configured; or the fourth parameter may be defined by the standard; or the fourth parameter may be determined in advance by negotiation between the first terminal device and the access network device; or the fourth parameter may be sent by the access network device to the first terminal device. For example, the fourth parameter may be carried in one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH or newly added signaling. The embodiments of the present application do not limit this.

[0199] Alternatively, the fourth parameter may also be obtained based on the second serial number of the first terminal device and the second identifier of the subgroup to which the first terminal device belongs. For example, offset_LPWUS=m, where m is a positive integer and satisfies the following formula:

[0200] offset_LPWUS is the fourth parameter, UEID is the second serial number of the first terminal device, N is the number of paging frames included in a discontinuous reception cycle of the first terminal device, N s is the number of paging occasions included in a paging frame, subgroupsNumForUEID is the number of the first subgroup corresponding to a paging occasion, SubgroupID2 LPWUS is the second identifier of the subgroup to which the first terminal device belongs, and subgroupsNumPerPO is the sum of the number of first subgroups and the number of second subgroups corresponding to one paging occasion.

[0201] If m has multiple values, offset_LPWUS can be the minimum value of m, or the maximum value of m, or the middle value of m, or any value of m. This embodiment of the present application does not limit this.

[0202] For example, when determining the third identifier of the subgroup to which the first terminal device belongs based on the second identifier of the subgroup to which the first terminal device belongs, the second subgroup information, the fifth subgroup information, and the fourth parameter, the calculation formula for the third identifier of the subgroup to which the first terminal device belongs can be specifically: SubgroupID3 LPWUS =subgroupsNumPerPO+ (SubgroupID2 LPWUS +offset_LPWUS)mod(subgroupsNumForUEID LPWUS -subgroupsNumPerPO)

[0203] Among them, SubgroupID2 LPWUS SubgroupID3 is the second identifier of the subgroup to which the first terminal device belongs. LPWUSis the third identifier of the subgroup to which the first terminal device belongs. subgroupsNumPerPO is the sum of the number of first subgroups and the number of second subgroups corresponding to a paging occasion. LPWUS The value of offset_LPWUS is based on UEID and subgroupsNumForUEID. LPWUS Obtained, either pre-configured or based on UEID and SubgroupID2 LPWUS The UEID is obtained based on the 5G communication system temporary mobile user identity of the first terminal device and the first parameter, or is obtained based on the 5G communication system temporary mobile user identity of the first terminal device.

[0204] For example, as shown in FIG8 , the PEI grouping rule is followed to group multiple terminal devices into 8 subgroups. In this case, the identifier of the subgroup to which each terminal device belongs is the second identifier. Since some of the 8 subgroups include a larger number of terminal devices, while some include a smaller number of terminal devices, the number of subgroups obtained by grouping the multiple terminal devices can be increased from 8 to 16. Some of the terminal devices in the first 8 subgroups, which include a larger number of terminal devices, can be transferred to the last 8 subgroups. In other words, the multiple terminal devices are re-grouped into 16 subgroups. In this case, the identifier of the subgroup to which each terminal device belongs is the third identifier.

[0205] According to the above scheme, the at least one terminal device including the first terminal device can be grouped using the grouping rules of PEI to determine the second identifier of the subgroup where the first terminal device is located. Since when the at least one terminal device including the first terminal device is grouped using the grouping rules of PEI, it may be possible that some subgroups include a large number of terminal devices and some subgroups include a small number of terminal devices, the number of subgroups obtained by grouping the at least one terminal device including the first terminal device can be increased, and some terminal devices in the subgroup including a large number of terminal devices can be transferred to the increased subgroup, that is, the at least one terminal device including the first terminal device can be regrouped to determine the third identifier of the subgroup where the first terminal device is located. This reduces the number of terminal devices included in the subgroup where the first terminal device is located, reduces the false alarm rate of the first terminal device, and reduces the power consumption of the first terminal device.

[0206] In a possible implementation, as shown in FIG7 , the present application may further perform the following steps before executing S601:

[0207] S601d: The access network device sends the fourth indication information to the first terminal device, and correspondingly, the first terminal device receives the fourth indication information from the access network device. The fourth indication information is used to indicate the first identifier, second identifier or third identifier of the terminal device included in each subgroup or any subgroup corresponding to a monitoring opportunity to determine the subgroup in which the terminal device is located. The fourth indication information can be one or more of RRC signaling, DCI, UCI, MAC CE, SIB, LP-WUS, LP-SS, paging message, PDCCH, PDSCH or newly added signaling. The fourth indication information can be sent periodically, and the period is relatively large; or the fourth indication information can also be sent on demand, for example, the fourth indication information needs to be sent after regrouping at least one terminal device.

[0208] During a specific implementation, the access network device may, based on the number of terminal devices included in each subgroup corresponding to a monitoring opportunity, instruct the terminal devices included in each subgroup corresponding to a monitoring opportunity to determine the first identifier, the second identifier, or the third identifier of the subgroup to which the terminal device belongs. For example, when the number of terminal devices included in a subgroup corresponding to a monitoring opportunity is large, the access network device may instruct the terminal devices included in the subgroup to determine the third identifier of the subgroup to which the terminal device belongs; when the number of terminal devices included in a subgroup corresponding to a monitoring opportunity is small, the access network device may instruct the terminal devices included in the subgroup to determine the first identifier or the second identifier of the subgroup to which the terminal device belongs.

[0209] The access network device can indicate each subgroup corresponding to a monitoring opportunity or the terminal device included in any subgroup to determine the first identifier, second identifier or third identifier of the subgroup to which the terminal device is located based on the different values ​​of the bits occupied by the fourth indication information.

[0210] Exemplarily, when the access network device uses a bit occupied by the fourth indication information to indicate the terminal devices included in a subgroup, a value of 0 for a bit occupied by the fourth indication information can indicate that the terminal devices included in the subgroup corresponding to the bit determine the first identifier of the subgroup to which the terminal devices belong, and a value of 1 for a bit occupied by the fourth indication information can indicate that the terminal devices included in the subgroup corresponding to the bit determine the third identifier of the subgroup to which the terminal devices belong. When the fourth indication information is 8 bits, the fourth indication information can use a bitmap to indicate the first identifier or the third identifier of the subgroup to which the terminal devices included in each of the 8 subgroups determine, (0, 0, 0, 1, 0, 0, 0, 1) indicates that the terminal devices included in subgroup 3 and subgroup 7 determine the third identifier of the subgroup to which the terminal devices belong, and indicates that the terminal devices included in subgroups 0-2 and subgroups 4-6 determine the first identifier of the subgroup to which the terminal devices belong.

[0211] Alternatively, when the access network device uses the two bits occupied by the fourth indication information to indicate the terminal devices included in a subgroup, the values ​​of the two bits occupied by the fourth indication information being 00 can indicate that the terminal devices included in the subgroup corresponding to the bit determine the first identifier of the subgroup to which the terminal devices belong, the values ​​of the two bits occupied by the fourth indication information being 01 can indicate that the terminal devices included in the subgroup corresponding to the bit determine the second identifier of the subgroup to which the terminal devices belong, and the values ​​of the two bits occupied by the fourth indication information being 10 can indicate that the terminal devices included in the subgroup corresponding to the bit determine the third identifier of the subgroup to which the terminal devices belong. When the fourth indication information is 8 bits, the fourth indication information can use a bitmap to indicate the first identifier or the third identifier of the subgroup to which the terminal devices included in each of the four subgroups determine, where (00, 01, 10, 00) indicates that the terminal devices included in subgroup 2 determine the third identifier of the subgroup to which the terminal devices belong, indicates that the terminal devices included in subgroup 1 determine the second identifier of the subgroup to which the terminal devices belong, and indicates that the terminal devices included in subgroup 0 and subgroup 3 determine the first identifier of the subgroup to which the terminal devices belong.

[0212] Alternatively, when the access network device uses each bit occupied by the fourth indication information to indicate a terminal device included in a subgroup, the value of each bit occupied by the fourth indication information being 0 can indicate that the terminal device included in the subgroup corresponding to the bit determines the first identifier of the subgroup to which the terminal device belongs, and the value of each bit occupied by the fourth indication information being 1 can indicate that the terminal device included in the subgroup corresponding to the bit determines the third identifier of the subgroup to which the terminal device belongs. The value of half of the bits occupied by the fourth indication information being 0 and the value of half of the bits being 1 can indicate that the terminal device included in the subgroup corresponding to the bit determines the first identifier of the subgroup to which the terminal device belongs.

[0213] In a possible implementation, as shown in FIG7 , the present application may further perform the following steps after executing S602:

[0214] S601e: The access network device sends an LP-WUS to the first terminal device. In response, the first terminal device receives the LP-WUS from the access network device. The LP-WUS includes fifth indication information, which indicates whether each subgroup corresponding to a monitoring opportunity, or the terminal devices included in any subgroup, should wake up the main receiver.

[0215] S601f: Determine whether to wake up the main receiver of the first terminal device based on the first identifier, the second identifier, or the third identifier of the subgroup to which the first terminal device belongs.

[0216] During the specific implementation process, the access network device can indicate whether each subgroup corresponding to a monitoring opportunity or the terminal devices included in any subgroup wakes up the main receiver based on different values ​​of the bits occupied by the fifth indication information.

[0217] Exemplarily, when the access network device uses a bit occupied by the fifth indication information to indicate the terminal devices included in a subgroup, a value of 0 for a bit occupied by the fifth indication information can indicate that the terminal devices included in the subgroup corresponding to the bit do not wake up the main receiver, and a value of 1 for a bit occupied by the fifth indication information can indicate that the terminal devices included in the subgroup corresponding to the bit wake up the main receiver. When the fifth indication information is 8 bits, the fifth indication information can use a bitmap to indicate whether the terminal devices included in each of the 8 subgroups wake up the main receiver, (0, 0, 0, 1, 0, 0, 0, 1) indicates that the terminal devices included in subgroup 3 and subgroup 7 wake up the main receiver, and indicates that the terminal devices included in subgroups 0-2 and subgroups 4-6 do not wake up the main receiver.

[0218] Alternatively, when the access network device uses the two bits occupied by the fifth indication information to indicate the terminal devices included in a subgroup, the value of the two bits occupied by the fifth indication information is 00, which can indicate that the terminal devices included in the subgroup corresponding to the bit do not wake up the main receiver, and the value of the two bits occupied by the fifth indication information is 01, which can indicate that the terminal devices included in the subgroup corresponding to the bit do wake up the main receiver. When the fifth indication information is 8 bits, the fifth indication information can use the form of a bitmap to indicate whether the terminal devices included in each of the four subgroups wake up the main receiver, (00, 01, 00, 00) indicates that the terminal devices included in subgroup 1 do not wake up the main receiver, and indicates that the terminal devices included in subgroup 0, subgroup 2, and subgroup 3 wake up the main receiver.

[0219] Alternatively, when the access network device uses each bit occupied by the fifth indication information to indicate a terminal device included in a subgroup, the value of each bit occupied by the fifth indication information is 0, which can indicate that the terminal device included in the subgroup corresponding to the bit wakes up the main receiver, and the value of each bit occupied by the fifth indication information is 1, which can indicate that the terminal device included in the subgroup corresponding to the bit does not wake up the main receiver.

[0220] In a possible implementation, as shown in FIG7 , the present application may further perform the following steps before executing S601:

[0221] S601g: The first terminal device sends sixth indication information to the access network device, and the access network device receives the sixth indication information from the first terminal device. The sixth indication information is used to indicate that the first terminal device supports grouping at least one terminal device based on the sequence number of each terminal device in the at least one terminal device.

[0222] In the second embodiment, the first terminal device does not support grouping of at least one terminal device based on the serial number of each terminal device in the at least one terminal device, but supports grouping of at least one terminal device by the core network device, wherein the at least one terminal device includes the first terminal device.

[0223] For example, refer to Figure 9, which is a flow chart of a communication method 900 provided in an embodiment of the present application. Figure 9 introduces the method from the perspective of the interaction between the core network device and the first terminal device. It should be understood that the communication method 900 can also be implemented by other devices, such as a chip or communication device with communication functions. It should be noted that the embodiment of the present application only takes the execution through the core network device and the first terminal device as an example, and is not limited to the core network device and the first terminal device. For example, the embodiment of the present application can also be executed by more terminal devices. When more terminal devices are involved, each terminal device in these more terminal devices executes the same process. As shown in Figure 9, the process of the communication method 900 includes the following steps.

[0224] S901. The core network device sends an identifier of the subgroup to which the first terminal device belongs to to the first terminal device. Correspondingly, the first terminal device receives the identifier of the subgroup to which the first terminal device belongs from the core network device.

[0225] It is understandable that the above-mentioned embodiments of the present application can be implemented separately or in combination with each other, and the embodiments of the present application are not limited.

[0226] The method provided by the embodiment of the present application is described above in conjunction with the accompanying drawings, and the device provided by the embodiment of the present application is described below in conjunction with the accompanying drawings.

[0227] Based on the same technical concept, embodiments of the present application provide a communication device that includes modules / units / means for executing the methods executed by the devices in the above method embodiments. The modules / units / means can be implemented in software or hardware, or the corresponding software implementation can be executed by hardware.

[0228] For example, see FIG10 , which is a schematic diagram of a communication device 1000 . The device 1000 includes a transceiver module 1001 and a processing module 1002 .

[0229] When the apparatus 1000 is a first terminal device or is located in a first terminal device, the functions of the modules of the apparatus 1000 are as follows:

[0230] Processing module 1002 is used to determine the first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device; wherein the first serial number of the first terminal device is obtained based on first information, the first information includes first subgroup information, the first subgroup information is used to indicate the maximum value of the sum of the number of first subgroups and the number of second subgroups corresponding to a monitoring opportunity, the monitoring opportunity is used to monitor the low-power wake-up signal, the first subgroup is a subgroup obtained by grouping the at least one terminal device based on the serial number of each terminal device in the at least one terminal device, the at least one terminal device includes the first terminal device, and the second subgroup is a subgroup obtained by grouping the at least one terminal device by the core network device.

[0231] Alternatively, when the apparatus 1000 is an access network device or is located in an access network device, the functions of the modules of the apparatus 1000 are as follows:

[0232] Processing module 1002 is used to determine the first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device; wherein the first serial number of the first terminal device is obtained based on the first information, the first information includes first subgroup information, the first subgroup information is used to indicate the maximum value of the sum of the number of first subgroups and the number of second subgroups corresponding to a monitoring opportunity, the monitoring opportunity is used to monitor the low-power wake-up signal, the first subgroup is a subgroup obtained by grouping the at least one terminal device based on the serial number of each terminal device in the at least one terminal device, the at least one terminal device includes the first terminal device, and the second subgroup is a subgroup obtained by grouping the at least one terminal device by the core network device.

[0233] In specific implementation, the above-mentioned device 1000 can have various product forms. Several possible product forms are introduced below.

[0234] Refer to Figure 11, which is a schematic diagram of a communication device 1100. The communication device 1100 includes a processor 1110 and an interface circuit 1120. The interface circuit 1120 is used to receive signals from other communication devices outside the communication device and transmit them to the processor 1110, or send signals from the processor 1110 to other communication devices outside the communication device. The processor 1110 is used to implement the method executed by the first terminal device or access network device in the above method embodiment through logic circuits or execution instructions.

[0235] The processor 1110 and the interface circuit 1120 are coupled to each other. It is understood that the interface circuit 1120 can be a transceiver or an input / output interface. Optionally, the communication device 1100 may further include a memory 1130 for storing instructions executed by the processor 1110, or storing input data required by the processor 1110 to execute instructions, or storing data generated after the processor 1110 executes instructions.

[0236] When the above-mentioned communication device is a module applied to the first terminal device or access network device, the module implements the functions of the first terminal device or access network device in the above-mentioned method embodiment. The module receives information from other modules (such as a radio frequency module or antenna) in the first terminal device or access network device, and the information is sent by the access network device to the first terminal device or by the first terminal device to the access network device; or the module sends information to other modules (such as a radio frequency module or antenna) in the first terminal device or access network device, and the information is sent by the access network device to the first terminal device or by the first terminal device to the access network device.

[0237] It should be understood that the processors mentioned in the embodiments of the present application can be implemented by hardware or software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc. When implemented by software, the processor can be a general-purpose processor that is implemented by reading software code stored in a memory.

[0238] Exemplarily, the processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0239] It should be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0240] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.

[0241] It should be noted that the memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.

[0242] Based on the same technical concept, an embodiment of the present application also provides a computer-readable storage medium, which stores a computer program or instruction. When the computer program or instruction is executed by the processor, the method executed by the first terminal device or access network device in the above method embodiment is implemented.

[0243] Based on the same technical concept, an embodiment of the present application also provides a computer program product, which includes a computer program or instructions. When the computer program or instructions are executed by a processor, the method executed by the first terminal device or access network device in the above method embodiment is implemented.

[0244] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0245] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each flow and / or box in the flow chart and / or block diagram, as well as the combination of the flow chart and / or box in the flow chart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more flow charts and / or one or more boxes in the block diagram.

[0246] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0247] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

Claims

1. A communication method, characterized in that: Applied to the first terminal device side, including: Determining, based on the first serial number of the first terminal device, a first identifier of the subgroup to which the first terminal device belongs; Among them, the first serial number of the first terminal device is obtained based on the first information, the first information includes first subgroup information, the first subgroup information is used to indicate the maximum value of the sum of the number of first subgroups and the number of second subgroups corresponding to a monitoring opportunity, the monitoring opportunity is used to monitor the low-power wake-up signal, the first subgroup is a subgroup obtained by grouping the at least one terminal device based on the serial number of each terminal device in the at least one terminal device, the at least one terminal device includes the first terminal device, and the second subgroup is a subgroup obtained by grouping the at least one terminal device by the core network device.

2. The method according to claim 1, wherein The first information also includes one or more of the following information: A fifth generation communication system temporary mobile user identity of the first terminal device; First monitoring opportunity information, used to determine the maximum number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device; The first parameter is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle.

3. The method according to claim 1 or 2, wherein: The calculation formula of the first serial number of the first terminal device is specifically: UEID_LPWUS=K1mod(K2*K3*subgroupsMaxNumPerOccasion LPWUS ) Among them, UEID_LPWUS is the first serial number of the first terminal device, K1 is the fifth-generation communication system temporary mobile user identity of the first terminal device, the value of K2 is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, K3 is the maximum number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device, subgroupsMaxNumPerOccasion LPWUS The maximum value of the sum of the number of the first subgroups and the number of the second subgroups corresponding to one monitoring opportunity.

4. The method according to any one of claims 1 to 3, characterized in that: Determining, based on the first serial number of the first terminal device, a first identifier of the subgroup to which the first terminal device belongs includes: Determining a first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device, the second monitoring opportunity information, and the second subgroup information; The second monitoring opportunity information is used to determine the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device; The second subgroup information is used to indicate the number of the first subgroups corresponding to one monitoring opportunity.

5. The method according to claim 4, wherein Determining, based on the first serial number of the first terminal device, the second monitoring opportunity information, and the second subgroup information, a first identifier of the subgroup to which the first terminal device belongs includes: Determining a first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device, the second monitoring opportunity information, the second subgroup information, and the second parameter; The second parameter is 0 or is related to the second subgroup information and the third subgroup information, and the third subgroup information is used to indicate the sum of the number of the first subgroups and the number of the second subgroups corresponding to one monitoring opportunity.

6. The method according to any one of claims 1 to 3, characterized in that: The calculation formula for the first identifier of the subgroup to which the first terminal device belongs is specifically: SubgroupID1 LPWUS =(floor(UEID_LPWUS / N1))mod(subgroupsNumForUEID LPWUS )+offset Among them, SubgroupID1 LPWUS is the first identifier of the subgroup to which the first terminal device belongs, UEID_LPWUS is the first serial number of the first terminal device, N1 is the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device, subgroupsNumForUEID LPWUS The number of the first subgroups corresponding to one monitoring opportunity, the value of offset is 0 or the value of offset is equal to subgroupsNumForUEID LPWUS and subgroupsNumPerOccasion LPWUS Related, subgroupsNumPerOccasion LPWUS It is the sum of the number of the first subgroups and the number of the second subgroups corresponding to one monitoring opportunity.

7. The method according to any one of claims 1 to 6, wherein: The method further comprises: receiving first indication information from an access network device, where the first indication information is used to indicate second monitoring opportunity information, where the second monitoring opportunity information is used to determine the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device; or The number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device is the product of a third parameter and a proportional factor, and the third parameter is the product of the number of paging frames included in a discontinuous reception cycle of the first terminal device and the number of paging opportunities included in a paging frame.

8. The method according to any one of claims 1 to 7, wherein: The method further comprises: Second indication information is received from an access network device, where the second indication information includes second subgroup information, and the second subgroup information is used to indicate the number of the first subgroups corresponding to one monitoring opportunity.

9. The method according to any one of claims 1 to 8, wherein: The method further comprises: Receive third indication information from the access network device, where the third indication information includes third subgroup information, where the third subgroup information is used to indicate the sum of the number of the first subgroups and the number of the second subgroups corresponding to one monitoring opportunity.

10. The method according to any one of claims 1 to 9, characterized in that: The method further comprises: Determining a second identifier of the subgroup to which the first terminal device belongs based on the second serial number, the third parameter, the fourth subgroup information, and the fifth subgroup information of the first terminal device; Determine a third identifier of the subgroup to which the first terminal device belongs based on the second identifier of the subgroup to which the first terminal device belongs, the second subgroup information, the fifth subgroup information, and the fourth parameter; Among them, the second serial number of the first terminal device is obtained based on the fifth-generation communication system temporary mobile user identity of the first terminal device and the first parameter, the first parameter is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, the third parameter is the product of the number of paging frames included in a discontinuous reception cycle of the first terminal device and the number of paging opportunities included in a paging frame, the second subgroup information is used to indicate the number of the first subgroups corresponding to a monitoring opportunity, the fourth subgroup information is used to indicate the number of the first subgroups corresponding to a paging opportunity, and the fifth subgroup information is used to indicate the sum of the number of the first subgroups and the number of the second subgroups corresponding to a paging opportunity, the fourth parameter is based on the second serial number of the first terminal device and the second subgroup information, or is pre-configured, or is based on the second serial number of the first terminal device and the second identifier of the subgroup to which the first terminal device is located, or is based on the second serial number of the first terminal device and the fourth subgroup information.

11. The method according to any one of claims 1 to 9, wherein: The calculation formula for the third identifier of the subgroup to which the first terminal device belongs is specifically: Among them, SubgroupID2 LPWUS is the second identifier of the subgroup to which the first terminal device belongs, UEID is the second serial number of the first terminal device, the value of UEID is obtained based on K1 and K2, K1 is the temporary mobile user identifier of the fifth generation communication system of the first terminal device, the value of K2 is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, N is the number of paging frames included in a discontinuous reception cycle of the first terminal device, N s is the number of paging occasions included in a paging frame, subgroupsNumForUEID is the number of the first subgroups corresponding to one paging occasion, subgroupsNumPerPO is the sum of the number of the first subgroups and the number of the second subgroups corresponding to one paging occasion, SubgroupID3 LPWUS The third identifier of the subgroup to which the first terminal device belongs, subgroupsNumForUEID LPWUS The number of the first subgroups corresponding to one monitoring opportunity. The value of offset_LPWUS is based on UEID and subgroupsNumForUEID LPWUS Obtained, either pre-configured or based on UEID and SubgroupID2 LPWUS Or it can be obtained based on UEID and subgroupsNumForUEID.

12. The method according to claim 10 or 11, wherein: The method further comprises: Receive fourth indication information from the access network device, where the fourth indication information is used to indicate each subgroup corresponding to a monitoring opportunity or the terminal device included in any subgroup to determine the first identifier, second identifier or third identifier of the subgroup to which the terminal device belongs.

13. The method according to claim 12, wherein: The method further comprises: receiving the low-power wake-up signal from the access network device, where the low-power wake-up signal includes fifth indication information, where the fifth indication information is used to indicate whether the terminal devices included in each subgroup or any one subgroup corresponding to one of the monitoring opportunities wake up the main receiver; Based on the first identifier, the second identifier or the third identifier of the subgroup to which the first terminal device belongs, it is determined whether to wake up the main receiver of the first terminal device.

14. The method according to any one of claims 1 to 13, wherein: The method further comprises: Send sixth indication information to the access network device, where the sixth indication information is used to indicate that the first terminal device supports grouping the at least one terminal device based on the serial number of each terminal device in the at least one terminal device.

15. A communication method, characterized in that: Applied to access network equipment, including: Determining, based on the first serial number of the first terminal device, a first identifier of the subgroup to which the first terminal device belongs; Among them, the first serial number of the first terminal device is obtained based on the first information, the first information includes first subgroup information, the first subgroup information is used to indicate the maximum value of the sum of the number of first subgroups and the number of second subgroups corresponding to a monitoring opportunity, the monitoring opportunity is used to monitor the low-power wake-up signal, the first subgroup is a subgroup obtained by grouping the at least one terminal device based on the serial number of each terminal device in the at least one terminal device, the at least one terminal device includes the first terminal device, and the second subgroup is a subgroup obtained by grouping the at least one terminal device by the core network device.

16. The method according to claim 15, wherein The first information also includes one or more of the following information: A fifth generation communication system temporary mobile user identity of the first terminal device; First monitoring opportunity information, used to determine the maximum number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device; The first parameter is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle.

17. The method according to claim 15 or 16, wherein: The calculation formula of the first serial number of the first terminal device is specifically: UEID_LPWUS=K1mod(K2*K3*subgroupsMaxNumPerOccasion LPWUS ) Among them, UEID_LPWUS is the first serial number of the first terminal device, K1 is the fifth-generation communication system temporary mobile user identity of the first terminal device, the value of K2 is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, K3 is the maximum number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device, subgroupsMaxNumPerOccasion LPWUS The maximum value of the sum of the number of the first subgroups and the number of the second subgroups corresponding to one monitoring opportunity.

18. The method according to any one of claims 15 to 17, wherein: Determining, based on the first serial number of the first terminal device, a first identifier of the subgroup to which the first terminal device belongs includes: Determining a first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device, the second monitoring opportunity information, and the second subgroup information; The second monitoring opportunity information is used to determine the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device; The second subgroup information is used to indicate the number of the first subgroups corresponding to one monitoring opportunity.

19. The method according to claim 18, wherein Determining, based on the first serial number of the first terminal device, the second monitoring opportunity information, and the second subgroup information, a first identifier of the subgroup to which the first terminal device belongs includes: Determining a first identifier of the subgroup to which the first terminal device belongs based on the first serial number of the first terminal device, the second monitoring opportunity information, the second subgroup information, and the second parameter; The second parameter is 0 or is related to the second subgroup information and the third subgroup information, and the third subgroup information is used to indicate the sum of the number of the first subgroups and the number of the second subgroups corresponding to one monitoring opportunity.

20. The method according to any one of claims 15 to 17, wherein: The calculation formula for the first identifier of the subgroup to which the first terminal device belongs is specifically: SubgroupID1 LPWUS =(floor(UEID_LPWUS / N1))mod(subgroupsNumForUEID LPWUS )+offset Among them, SubgroupID1 LPWUS is the first identifier of the subgroup to which the first terminal device belongs, UEID_LPWUS is the first serial number of the first terminal device, N1 is the number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device, subgroupsNumForUEID LPWUS The number of the first subgroups corresponding to one monitoring opportunity, the value of offset is 0 or the value of offset is equal to subgroupsNumForUEID LPWUS and subgroupsNumPerOccasion LPWUS Related, subgroupsNumPerOccasion LPWUS It is the sum of the number of the first subgroups and the number of the second subgroups corresponding to one monitoring opportunity.

21. The method according to any one of claims 15 to 20, wherein: The method further comprises: A first indication message is sent to the first terminal device, where the first indication message is used to indicate second monitoring opportunity information, and the second monitoring opportunity information is used to determine the number of monitoring opportunities included in a non-continuous reception cycle of the first terminal device.

22. The method according to any one of claims 15 to 20, wherein: The number of monitoring opportunities included in a discontinuous reception cycle of the first terminal device is the product of a third parameter and a proportional factor, and the third parameter is the product of the number of paging frames included in a discontinuous reception cycle of the first terminal device and the number of paging opportunities included in a paging frame.

23. The method according to any one of claims 15 to 22, wherein: The method further comprises: Send second indication information to the terminal device, where the second indication information includes second subgroup information, and the second subgroup information is used to indicate the number of the first subgroups corresponding to one monitoring opportunity.

24. The method according to any one of claims 15 to 23, wherein: The method further comprises: Send third indication information to the terminal device, where the third indication information includes third subgroup information, and the third subgroup information is used to indicate the sum of the number of the first subgroups and the number of the second subgroups corresponding to one monitoring opportunity.

25. The method according to any one of claims 15 to 24, wherein: The method further comprises: Determining a second identifier of the subgroup to which the first terminal device belongs based on the second serial number, the third parameter, the fourth subgroup information, and the fifth subgroup information of the first terminal device; Determine a third identifier of the subgroup to which the first terminal device belongs based on the second identifier of the subgroup to which the first terminal device belongs, the second subgroup information, the fifth subgroup information, and the fourth parameter; Among them, the second serial number of the first terminal device is obtained based on the fifth-generation communication system temporary mobile user identity of the first terminal device and the first parameter, the first parameter is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, the third parameter is the product of the number of paging frames included in a discontinuous reception cycle of the first terminal device and the number of paging opportunities included in a paging frame, the second subgroup information is used to indicate the number of the first subgroups corresponding to a monitoring opportunity, the fourth subgroup information is used to indicate the number of the first subgroups corresponding to a paging opportunity, and the fifth subgroup information is used to indicate the sum of the number of the first subgroups and the number of the second subgroups corresponding to a paging opportunity, the fourth parameter is based on the second serial number of the first terminal device and the second subgroup information, or is pre-configured, or is based on the second serial number of the first terminal device and the second identifier of the subgroup to which the first terminal device is located, or is based on the second serial number of the first terminal device and the fourth subgroup information.

26. The method according to any one of claims 15 to 24, wherein: The calculation formula for the third identifier of the subgroup to which the first terminal device belongs is specifically: Among them, SubgroupID2 LPWUS is the second identifier of the subgroup to which the first terminal device belongs, UEID is the second serial number of the first terminal device, the value of UEID is obtained based on K1 and K2, K1 is the temporary mobile user identifier of the fifth generation communication system of the first terminal device, the value of K2 is related to whether the discontinuous reception cycle of the first terminal device is an extended discontinuous reception cycle, N is the number of paging frames included in a discontinuous reception cycle of the first terminal device, N s is the number of paging occasions included in a paging frame, subgroupsNumForUEID is the number of the first subgroups corresponding to one paging occasion, subgroupsNumPerPO is the sum of the number of the first subgroups and the number of the second subgroups corresponding to one paging occasion, SubgroupID3 LPWUS The third identifier of the subgroup to which the first terminal device belongs, subgroupsNumForUEID LPWUS The number of the first subgroups corresponding to one monitoring opportunity. The value of offset_LPWUS is based on UEID and subgroupsNumForUEID LPWUS Obtained, either pre-configured or based on UEID and SubgroupID2 LPWUS Or it can be obtained based on UEID and subgroupsNumForUEID.

27. The method according to claim 25 or 26, wherein The method further comprises: Send fourth indication information to the first terminal device, where the fourth indication information is used to instruct each subgroup corresponding to a monitoring opportunity or the terminal devices included in any subgroup to determine the first identifier, second identifier or third identifier of the subgroup to which the terminal device belongs.

28. The method of claim 27, wherein: The method further comprises: The low-power wake-up signal is sent to the first terminal device, and the low-power wake-up signal includes fifth indication information, and the fifth indication information is used to indicate whether the terminal devices included in each subgroup or any subgroup corresponding to a monitoring opportunity wake up the main receiver.

29. The method according to any one of claims 15 to 28, wherein: The method further comprises: Receive sixth indication information from the first terminal device, where the sixth indication information is used to indicate that the first terminal device supports grouping the at least one terminal device based on the serial number of each terminal device in the at least one terminal device.

30. A communication device, characterized in that: Comprising a module for performing the method as claimed in any one of claims 1 to 14, or a module for performing the method as claimed in any one of claims 15 to 29.

31. A communication device, characterized in that: comprising a processor configured to implement the method of any one of claims 1 to 14, or any one of claims 15 to 29.

32. A computer program product, characterized in that The device comprises a computer program, which, when executed by a communication device, implements the method according to any one of claims 1 to 14, or any one of claims 15 to 29.

33. A computer-readable storage medium, characterized in that The storage medium stores a computer program or instruction. When the computer program or instruction is executed by the communication device, the method according to any one of claims 1 to 14, or any one of claims 15 to 29, is implemented.

Images