Communication method and communication apparatus

Abstract

The present application provides a communication method and a communication apparatus, being applicable to a scenario where a lower-power wake-up signal (LP-WUS) is combined with a paging early indication (PEI), and used for reducing paging false alarms by monitoring a paging message in a two-layer grouping manner. In the method, a first wake-up signal is received by means of a fist receiver having lower operating power, a second wake-up signal is received by means of a second receiver having higher operating power, and then paging is monitored on the basis of the second wake-up signal. Because a second terminal group indicated by the second wake-up signal and a first terminal group indicated by the first wake-up signal comprise a terminal device, a terminal is instructed by means of the first terminal group to wake up, and then is instructed by means of the second paging group to monitor a paging message, so as to achieve the monitoring of a paging message in the two-layer grouping manner. A terminal to be paged can be instructed in a more fine-grained manner, and the probability of the terminal being paged is reduced, thereby further reducing paging false alarms.

Description

Communication method and communication device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on August 31, 2023, with application number 202311129388.0 and application name “A Communication Method and Communication Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and in particular to a communication method and a communication device. Background Art

[0003] In a communication system, when multiple terminal devices monitor the same paging occasion (PO), if a paging is only targeted at some of the terminal devices, then for the terminal devices that are not paged, unnecessary paging reception occurs, resulting in unnecessary power consumption. This situation is called a false alarm.

[0004] Currently, network devices and terminal devices can introduce a paging early indication (PEI) mechanism to reduce the occurrence of paging false alarms. Specifically, the network device can divide multiple terminal devices in the same Point of View (PO) into multiple groups and, based on the PEI mechanism, indicate that terminal devices in specific groups within the multiple groups need to listen for paging messages in the PO.

[0005] Furthermore, terminal devices configured with a low-power wake-up signal (LP-WUS) utilize a combined primary and secondary receive link mode. The primary link is in ultra-deep sleep before being awakened by LP-WUS. LP-WUS signals can be designed with subgroup granularity to reduce false wake-up alarms.

[0006] Therefore, how to combine LP-WUS with the PEI mechanism to monitor PO is a technical problem that needs to be solved urgently.

[0007] Summary of the Invention

[0008] The embodiments of the present application provide a communication method and a communication device for reducing paging false alarms by monitoring paging messages in a double-layer grouping manner.

[0009] The first aspect of the present application provides a communication method, which is executed by a terminal device, or the method is executed by some components in the terminal device (such as a processor, a chip or a chip system, etc.), or the method can also be implemented by a logic module or software that can realize all or part of the terminal device functions. The communication method is applied to a terminal device, and the terminal device includes a first receiver and a second receiver, and the operating power of the first receiver is less than the operating power of the second receiver. In this method, a first wake-up signal is first received by a first receiver, and the first wake-up signal includes a first indication information. The first indication information is used to indicate that the first terminal group is awakened, and the first terminal group includes a terminal device (or it is understood that the terminal group to which the first receiver belongs is in the first terminal group), and then a second wake-up signal is received by a second receiver, and the second wake-up signal is used to indicate that the second terminal group receives a paging message, and the second terminal group includes a terminal device (or it is understood that the terminal group to which the first receiver belongs is in the second terminal group). Then, a paging message is received based on the second wake-up signal.

[0010] Based on the above technical solution, the first wake-up signal is first received by a first receiver with lower working power, and then the second wake-up signal is received by a second receiver with higher working power, and then the paging is monitored based on the second wake-up signal. Since the second terminal group indicated by the second wake-up signal and the first terminal group indicated by the first wake-up signal include the terminal device, the first terminal group indicates the awakening terminal, and then the second paging group indicates the monitoring of the paging message, so as to realize the double-layer grouping method of monitoring the paging message. On the one hand, a communication method suitable for the scenario where a low-power wake-up signal and a paging advance indication are combined is provided. On the other hand, the terminal to be paged can be indicated in a finer granularity, reducing the probability of the terminal being paged, and the use of the finer-grained double-layer grouping method can reduce the energy loss of unnecessary monitoring of paging compared to the case where the terminal device directly monitors the paging message, thereby further reducing the paging false alarm.

[0011] The second aspect of the present application provides a communication method, which is performed by a network device, or the method is performed by some components in the network device (such as a processor, chip or chip system, etc.), or the method can also be implemented by a logic module or software that can realize all or part of the network device functions. In this method, a first wake-up signal is sent, and the first wake-up signal is configured to be received by a first receiver. The first wake-up signal includes first indication information, and the first indication information is used to indicate that the first terminal group is awakened, and the first terminal group includes a terminal device; a second wake-up signal is sent, and the second wake-up signal is configured to be received by a second receiver. The operating power of the first receiver is less than the operating power of the second receiver. The second wake-up signal is used to indicate that the second terminal group receives a paging message, and the second terminal group includes a terminal device. Wherein, the terminal device includes a first receiver and a second receiver.

[0012] Based on the above technical solution, the network device can instruct the terminal device to monitor the paging message in a double-layer grouping manner by first sending a first wake-up signal and then sending a second wake-up signal. On the one hand, a communication method suitable for a scenario in which a low-power wake-up signal and a paging advance indication are combined is provided. On the other hand, the terminal to be paged can be indicated in a more fine-grained manner, reducing the probability of the terminal being paged, and the use of this finer-grained double-layer grouping method can reduce the energy loss of unnecessary monitoring of paging compared to the case of instructing the terminal device to directly monitor the paging message and directly monitor all PEI single-layer groups, thereby further reducing paging false alarms.

[0013] In a possible implementation of the first or second aspect, the second terminal group is a subgroup of the first terminal group. Alternatively, the terminal group to which the terminal device to which the first receiver belongs is both in the large group of the first terminal group and in the small group of the second terminal group.

[0014] Based on the above technical solution, through double-layer grouping, and the two-layer grouping has a subordinate relationship, the terminal to be paged can be indicated in a finer granularity, thereby reducing the probability of the terminal being paged.

[0015] In a possible implementation of the first aspect or the second aspect, the second terminal group includes a third terminal group, the second wake-up signal includes second indication information, and the second indication information is used to instruct the third terminal group to receive a paging message; the third terminal group in the second terminal group is a subgroup of the first terminal group, the devices in the third terminal device group support a terminal identification grouping (UE_ID) method, and the third terminal group in the second terminal group includes terminal devices. Accordingly, the step of receiving a paging message based on the second wake-up signal includes receiving a paging message based on the second indication information.

[0016] In addition, the second indication information mentioned above can be understood as a newly introduced PEI (referred to herein as the second PEI).

[0017] Based on the above technical solution, the second indication information in the second wake-up signal is used to perform a second-layer indication on the terminal that supports the terminal identification group (the first-layer indication is the first indication information), so that the terminal to be paged can be indicated in a more fine-grained manner, reducing the probability of the terminal being paged.

[0018] In a possible implementation of the first aspect or the second aspect, the second terminal group includes a fourth terminal group, the second wake-up signal includes third indication information, the third indication information is used to instruct the fourth terminal group to receive a paging message, the devices in the fourth terminal device group support a core network grouping mode or a terminal identifier grouping mode, and the fourth terminal group in the second terminal group includes terminal devices. Accordingly, the step of receiving a paging message based on the second wake-up signal includes receiving a paging message based on the third indication information.

[0019] In addition, the third indication information mentioned above can be understood as an existing PEI (referred to herein as the first PEI).

[0020] Based on the above technical solution, it is compatible with the existing PEI mechanism, that is, the double-layer grouping newly designed in this application does not affect the solution of traditional terminals monitoring the existing PEI, thereby improving the compatibility of this solution.

[0021] In a possible implementation of the first aspect or the second aspect, the second indication information is located in the first field of the downlink control information DCI, and the DCI also includes a second field, and the second field is used to indicate that the fifth terminal group receives the paging message, and the devices in the fifth terminal device group support the core network grouping method or support the terminal identification grouping method.

[0022] Based on the above technical solution, when the newly designed second PEI in this application coexists with the existing first PEI, DCI overhead can be reduced. For example, the second PEI in the newly designed two-layer group can be in the reserved field of the DCI corresponding to the existing first PEI, thereby implementing a mechanism for a single DCI to indicate different PEIs. This not only reduces overhead but also improves the compatibility of this solution.

[0023] In a possible implementation of the first aspect or the second aspect, a calculation formula for the second indication information is as follows:

[0024] Wherein, SubgroupID2 represents the group number of the third terminal group, floor represents rounding down, UE_ID represents the terminal identifier of the terminal device, N represents the number of paging frames in a paging cycle, N s represents the number of paging occasions in a paging frame, G1 represents the number of packets of the first terminal group in a paging occasion, and G2 represents the number of packets of the third terminal group in a paging occasion.

[0025] Optionally, each parameter in the above calculation formula may be notified to the terminal device by the network device through configuration, pre-configuration or broadcasting.

[0026] Based on the above technical solution, a method for calculating the group number of the second PEI in a double-layer grouping is provided to improve the accuracy of the terminal device in determining the group number.

[0027] In a possible implementation manner of the first aspect or the second aspect, the first indication information is a low power wake-up signal LP-WUS, and the second indication information is a paging early indication PEI.

[0028] Based on the above technical solution, a communication method suitable for a scenario where a low-power wake-up signal is combined with a paging advance indication is provided.

[0029] In a third aspect of the present application, a communication device is provided, which can implement the method in the above-mentioned first aspect or any possible implementation of the first aspect. The device includes corresponding units or modules for executing the above-mentioned method. The units or modules included in the device can be implemented by software and / or hardware. For example, the device can be a terminal device, or the device can be a component in the terminal device (such as a processor, a chip or a chip system, etc.), or the device can also be a logic module or software that can implement all or part of the functions of the terminal device. In the third aspect and its possible implementation, the communication device is described as a terminal device as an example.

[0030] The device includes a transceiver unit; the transceiver unit is used to receive a first wake-up signal through a first receiver, the first wake-up signal includes first indication information, the first indication information is used to indicate that the first terminal group is awakened, and the first terminal group includes terminal equipment; the transceiver unit is also used to receive a second wake-up signal through a second receiver, the second wake-up signal is used to indicate that the second terminal group receives a paging message, and the second terminal group includes terminal equipment; the transceiver unit is also used to receive a paging message based on the second wake-up signal.

[0031] Optionally, the device may further include a processing unit configured to receive a paging message based on the second wake-up signal, or the transceiver unit cooperates with the processing unit to receive a paging message based on the second wake-up signal.

[0032] In a fourth aspect of the present application, a communication device is provided, which can implement the method in the above-mentioned first aspect or any possible implementation of the first aspect. The device includes corresponding units or modules for executing the above-mentioned method. The units or modules included in the device can be implemented by software and / or hardware. For example, the device can be a network device, or the device can be a component in the network device (such as a processor, a chip or a chip system, etc.), or the device can also be a logic module or software that can implement all or part of the functions of the network device. In the third aspect and its possible implementation, the communication device is described as a network device as an example.

[0033] The device includes a transceiver unit, configured to send a first wake-up signal configured to be received by a first receiver, the first wake-up signal including first indication information, the first indication information being used to indicate that a first terminal group is awakened, and the first terminal group includes terminal devices; and the transceiver unit is further configured to send a second wake-up signal configured to be received by a second receiver, the operating power of the first receiver being less than the operating power of the second receiver, the second wake-up signal being used to indicate that a second terminal group receives a paging message, and the second terminal group includes terminal devices. The terminal devices include the first receiver and the second receiver, and the terminal devices include the first receiver and the second receiver.

[0034] In a possible implementation manner of the third aspect or the fourth aspect, the second terminal group is a subgroup of the first terminal group.

[0035] In a possible implementation of the third aspect, the second terminal group includes a third terminal group, the second wake-up signal includes second indication information, and the second indication information is used to indicate that the third terminal group receives a paging message; the third terminal group in the second terminal group is a subgroup of the first terminal group, the devices in the third terminal device group support a terminal identification grouping method, and the third terminal group in the second terminal group includes terminal devices.

[0036] In a possible implementation of the third aspect or the fourth aspect, the second terminal group includes a fourth terminal group, the second wake-up signal includes third indication information, the third indication information is used to indicate that the fourth terminal group receives a paging message, the devices in the fourth terminal device group support a core network grouping mode or a terminal identification grouping mode, and the fourth terminal group in the second terminal group includes terminal devices.

[0037] In a possible implementation of the third aspect or the fourth aspect, the second indication information is located in the first field of the downlink control information DCI, and the DCI also includes a second field, and the second field is used to indicate that the fifth terminal group receives the paging message, and the devices in the fifth terminal device group support the core network grouping method or support the terminal identification grouping method.

[0038] In a possible implementation of the third aspect or the fourth aspect, a calculation formula for the second indication information is as follows:

[0039] Wherein, SubgroupID2 represents the group number of the third terminal group, floor represents rounding down, UE_ID represents the terminal identifier of the terminal device, N represents the number of paging frames in a paging cycle, N s represents the number of paging occasions in a paging frame, G1 represents the number of packets of the first terminal group in a paging occasion, and G2 represents the number of packets of the third terminal group in a paging occasion.

[0040] In a possible implementation manner of the third aspect or the fourth aspect, the first indication information is a low power wake-up signal LP-WUS, and the second indication information is a paging early indication PEI.

[0041] The fifth aspect of an embodiment of the present application provides a communication device, comprising at least one processor, at least one processor coupled to a memory; the memory is used to store programs or instructions; the at least one processor is used to execute the program or instructions so that any possible implementation method of any aspect of the aforementioned first aspect is implemented.

[0042] A sixth aspect of an embodiment of the present application provides a communication device, comprising at least one processor, wherein the at least one processor is coupled to a memory; the memory is used to store programs or instructions; the at least one processor is used to execute the program or instructions so that the method described in any possible implementation method of any aspect of the aforementioned second aspect is implemented.

[0043] A seventh aspect of an embodiment of the present application provides a communication device, comprising at least one logic circuit and an input / output interface; the logic circuit and the input / output interface are used to execute the method described in any possible implementation of any aspect of the first aspect.

[0044] In an eighth aspect, an embodiment of the present application provides a communication device, comprising at least one logic circuit and an input / output interface; the logic circuit and the input / output interface are used to execute the method described in any possible implementation method of any aspect of the second aspect.

[0045] A ninth aspect of an embodiment of the present application provides a communication device, comprising at least one processor configured to implement the functions involved in the method described in any possible implementation of any one of the first aspects. The communication device may also include a memory configured to store program instructions and data necessary for the communication device. Optionally, the communication device further includes an interface circuit configured to provide program instructions and / or data to the at least one processor.

[0046] In a tenth aspect of an embodiment of the present application, a communication device is provided, comprising at least one processor configured to implement the functions involved in the method described in any possible implementation of any one of the first aspects. The communication device may also include a memory configured to store program instructions and data necessary for the communication device. Optionally, the communication device further comprises an interface circuit configured to provide program instructions and / or data to the at least one processor.

[0047] The communication device in the fifth to tenth aspects of the embodiments of the present application can be a terminal device or a network device, or a chip or chip system in the terminal device or the network device. The chip system can be composed of chips, or can include chips and other discrete devices.

[0048] In an eleventh aspect of an embodiment of the present application, a computer-readable storage medium is provided for storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes the method described in any possible implementation of any of the first and second aspects above.

[0049] A twelfth aspect of an embodiment of the present application provides a computer program product (or computer program). When the computer program product is executed by the processor, the processor executes the method described in any possible implementation of any one of the first and second aspects above.

[0050] A thirteenth aspect of the embodiments of the present application provides a communication system, which includes the terminal device of the first aspect and the network device of the second aspect. Alternatively, the communication system includes the communication device of the fifth aspect and the communication device of the sixth aspect, or the communication system includes the communication device of the seventh aspect and the communication device of the eighth aspect, or the communication system includes the communication device of the ninth aspect and the communication device of the tenth aspect.

[0051] Among them, the technical effects brought about by any design method in the second to thirteenth aspects can refer to the technical effects brought about by the different design methods in any aspect of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] FIG1a is a schematic diagram of a communication scenario provided by this application;

[0053] FIG1b is another schematic diagram of a communication scenario provided by this application;

[0054] FIG1c is another schematic diagram of a communication scenario provided by this application;

[0055] FIG1d is another schematic diagram of a communication scenario provided by this application;

[0056] FIG2 is a schematic diagram of a paging mechanism provided by this application;

[0057] FIG3a is a schematic diagram of a communication process in a packet mode provided by the present application;

[0058] FIG3 b is a schematic diagram of a communication process in another grouping mode provided by the present application;

[0059] FIG4a is a schematic diagram of a DCI provided in this application;

[0060] Figure 4b is a schematic diagram of PEI in this application;

[0061] FIG5 is a schematic diagram of the receiver architecture under the LP-WUS configuration provided by this application;

[0062] FIG6 is a flow chart of a communication method provided by the present application;

[0063] FIG7 is a schematic diagram of a double-layer grouping provided by the present application;

[0064] FIG8 is another schematic diagram of DCI provided by this application;

[0065] FIG9 is another schematic flow chart of the communication method provided by the present application;

[0066] FIG10 is a schematic diagram of a communication device provided by the present application;

[0067] FIG11 is another schematic diagram of a communication device provided by the present application;

[0068] FIG12 is another schematic diagram of a communication device provided by the present application;

[0069] FIG13 is another schematic diagram of the communication device provided by the present application;

[0070] FIG14 is another schematic diagram of the communication device provided in this application. DETAILED DESCRIPTION

[0071] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0072] First, some of the terms used in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0073] 1. Terminal equipment

[0074] The terminal device can be a wireless terminal device capable of receiving network device scheduling and indication information. The wireless terminal device can be a device that provides voice and / or data connectivity to the user, or a handheld device with wireless connection function, or other processing device connected to a wireless modem.

[0075] Terminal devices can communicate with one or more core networks or the Internet via a radio access network (RAN). Terminal devices can be mobile terminal devices, such as mobile phones (also known as "cellular" phones, mobile phones), computers, and data cards. For example, they can be portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted mobile devices that exchange voice and / or data with the radio access network. Examples include personal communication service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablet computers, and computers with wireless transceiver capabilities. A wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station (MS), a remote station, an access point (AP), a remote terminal, an access terminal, a user terminal, a user agent, a subscriber station (SS), a customer premises equipment (CPE), a terminal, a user equipment (UE), a mobile terminal (MT), etc. A terminal device may also be a wearable device or a next-generation communication system, for example, a terminal device in a 5G communication system or a terminal device in a future-evolved public land mobile network (PLMN).

[0076] 2. Network equipment

[0077] A network device can be a device in a wireless network. For example, a network device can be a radio access network (RAN) node (or device) that connects a terminal device to a wireless network, also known as a base station. Currently, some examples of RAN devices include: a new generation Node B (gNodeB) in a 5G communication system, a transmission reception point (TRP), an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., a home evolved Node B, or HNB), a baseband unit (BBU), or a wireless fidelity (Wi-Fi) access point (AP). Furthermore, in a network architecture, a network device can include a centralized unit (CU) node, a distributed unit (DU) node, or a RAN device that includes both a CU node and a DU node.

[0078] Among them, the network device can send configuration information to the terminal device (for example, carried in a scheduling message and / or an indication message), and the terminal device further performs network configuration according to the configuration information, so that the network configurations between the network device and the terminal device are aligned; or, through the network configuration preset in the network device and the network configuration preset in the terminal device, the network configurations between the network device and the terminal device are aligned. Specifically, "alignment" means that when there are interactive messages between the network device and the terminal device, the two have a consistent understanding of the carrier frequency for sending and receiving interactive messages, the determination of the interactive message type, the meaning of the field information carried in the interactive message, or other configurations of the interactive message.

[0079] In addition, in other possible cases, the network device may be another device that provides wireless communication functions for the terminal device. The embodiments of this application do not limit the specific technology and specific device form used by the network device. For the convenience of description, the embodiments of this application are not limited.

[0080] The network device may further include a core network device, which may include, for example, an access and mobility management function (AMF), a user plane function (UPF), or a session management function (SMF).

[0081] In the embodiments of the present application, the apparatus for implementing the function of the network device may be the network device, or may be a device capable of supporting the network device in implementing the function, such as a chip system, which may be installed in the network device. In the technical solutions provided in the embodiments of the present application, the technical solutions provided in the embodiments of the present application are described by taking the network device as an example.

[0082] 3. Radio Resource Control (RRC) Status

[0083] There are at least three RRC states for terminal devices: RRC connected state (connected state), RRC idle state (idle state) and inactive state (inactive state).

[0084] RRC connected state: The terminal device has established an RRC connection with the network, enabling data transmission. The RRC connected state can also be referred to as the connected state. In this document, "connected state" and "RRC connected state" are the same concept and can be referred to interchangeably.

[0085] RRC Idle State: The terminal device has not established an RRC connection with the network, and the base station has not stored the context of the terminal device. If the terminal device needs to enter the RRC Connected State from the RRC Idle State, it needs to initiate the RRC connection establishment process. The RRC Idle State can also be referred to as the Idle State. In this article, "Idle State" and "RRC Idle State" are the same concept and can be referred to interchangeably.

[0086] RRC inactive state: The terminal device has previously entered the RRC connected state, and then the base station released the RRC connection, but the base station saved the context of the terminal device. If the terminal device needs to enter the RRC connected state again from the RRC inactive state, it is necessary to initiate an RRC recovery process (or called an RRC connection recovery process). Compared with the RRC establishment process, the RRC recovery process has a shorter delay and lower signaling overhead. However, the base station needs to save the context of the terminal device, which will occupy the storage overhead of the base station. The RRC inactive state can also be referred to as the inactive state. In this article, "deactivated state", "deactivated state", "inactive state", "RRC inactive state" and "RRC deactivated state" are the same concept, and these names can be interchanged.

[0087] 4. Paging

[0088] Paging is a process in which a network-side device periodically sends a paging message to a terminal in an idle state or an inactive state to wake up the terminal in an idle state or an inactive state and return it to a connected state. In one possible design, the process includes: a network-side device (such as an access network device) can calculate the paging occasion (PO) corresponding to the terminal. The PO appears periodically, and the period in which the terminal's own PO appears is called a paging cycle. When the network-side device needs to page the terminal, a physical downlink control channel (PDCCH) carrying paging downlink control information (DCI) is sent to the terminal on the terminal's PO. The paging DCI can be used to indicate whether the paging DCI schedules a physical downlink shared channel (PDSCH) carrying a paging message. In an embodiment of the present application, the PDSCH carrying the paging message can be called a paging PDSCH.

[0089] Furthermore, if the paging DCI indicates that a PDSCH carrying a paging message is scheduled, the network-side device sends a PDSCH carrying a paging message at the resource location indicated by the paging DCI. Accordingly, the terminal-side device (such as the terminal) can periodically monitor the paging DCI on its corresponding PO. If the terminal-side device receives the paging DCI and the paging DCI schedules the paging PDSCH, it receives the PDSCH carrying the paging message according to the received paging DCI, and determines whether it is paged according to the PDSCH carrying the paging message. If the terminal is paged, the terminal initiates a random access process and switches to the connected state.

[0090] In addition, paging supports discontinuous reception (DRX), which allows the terminal device to wake up only during fixed periods to receive paging messages and sleep the rest of the time to reduce power consumption and improve battery life. For example, each wake-up period is a DRX cycle. A DRX cycle contains one or more paging frames (PF). A PF corresponds to one or more POs, and a terminal device needs to receive paging messages on a certain PO.

[0091] It should be understood that the terminal device described in the embodiment of the present application is a terminal device in an idle state or an inactive state.

[0092] 5. Paging occasion (PO)

[0093] The paging opportunity is the time domain location / time interval in which the terminal monitors the paging DCI. When determining the location of a PO, the first step is to confirm the location of a paging frame (PF), and then determine the final location of the PO based on the relative position of the PO in the PF. A PF can be associated with one or more POs. The POs in a PF are arranged continuously starting from the starting position of the PF. For example, the starting position of the first PO in the PF is the same as the starting position of the PF, the starting position of the second PO overlaps with the ending position of the first PO, and so on. Multiple POs are configured. The length of a PO can be one or more time slots.

[0094] 6. Configuration and pre-configuration

[0095] In this application, configuration and pre-configuration are used simultaneously. Configuration refers to the network device / server sending some parameter configuration information or parameter values ​​to the terminal through messages or signaling, so that the terminal can determine the communication parameters or resources during transmission based on these values ​​or information. Pre-configuration is similar to configuration and can be parameter information or parameter values ​​pre-negotiated between the network device / server and the terminal device, parameter information or parameter values ​​used by the base station / network device or terminal device as specified in the standard protocol, or parameter information or parameter values ​​pre-stored in the base station / server or terminal device. This application does not limit this.

[0096] Furthermore, these values ​​and parameters can be changed or updated.

[0097] 7. Receive

[0098] The received signal in the embodiment of the present application can also be understood as a detection signal, a monitoring signal, etc., which is not limited here. For example, receiving DCI usually refers to monitoring DCI.

[0099] 8. The terms "system" and "network" in the embodiments of the present application can be used interchangeably. "At least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: 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. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, "at least one of A, B and / or C" can mean: A, B, C, AB, AC, BC or ABC. And, unless otherwise specified, the ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects.

[0100] In this application, unless otherwise specified, the same or similar parts between the various embodiments can refer to each other. In the various embodiments of this application, and the various methods / designs / implementations in each embodiment, if there is no special explanation and logical conflict, the terms and / or descriptions between different embodiments and the various methods / designs / implementations in each embodiment are consistent and can be referenced to each other. The technical features in different embodiments and the various methods / designs / implementations in each embodiment can be combined to form new embodiments, methods, or implementations according to their inherent logical relationships. The following description of the implementation methods of this application does not constitute a limitation on the scope of protection of this application.

[0101] Please refer to Figure 1a, which is a schematic diagram of a communication system in this application. Figure 1a exemplarily illustrates a network device and six terminal devices, namely terminal device 1, terminal device 2, terminal device 3, terminal device 4, terminal device 5, and terminal device 6. In the example shown in Figure 1a, terminal device 1 is a smart teacup, terminal device 2 is a smart air conditioner, terminal device 3 is a smart gas pump, terminal device 4 is a vehicle, terminal device 5 is a mobile phone, and terminal device 6 is a printer.

[0102] As shown in Figure 1a, during the communication process, the signal sending device (or called the transmitting end, transmitting end device) can be a network device, and the signal receiving device (or called the receiving end, receiving end device) can be a terminal device; or, the signal sending device can be a terminal device, and the signal receiving device can be a network device; or, both the signal sending device and the signal receiving device can be network devices; or, both the signal sending device and the signal receiving device can be terminal devices.

[0103] The present application can be applied to a long term evolution (LTE) system, a new radio (NR) system, or a communication system evolved after 5G (such as 6G, etc.). The communication system includes at least one network device and / or at least one terminal device.

[0104] As an implementation example, Figure 1b shows the 5G NR system architecture. The 5G core network (5GC) includes network elements such as the access and mobility management function (AMF) and the user plane function (UPF). The 5G radio access network (NG-RAN) includes network elements such as the 5G access network (gNB) and the 4G access network (ng-eNB) connected to the 5GC.

[0105] Optionally, in the example shown in Figure 1b, the serving base station gNB of the terminal device is responsible for providing the user plane and control plane protocol functions of 5G NR for the terminal device; the serving base station ng-eNB of the terminal device is responsible for providing the user plane and control plane protocol functions of 4G E-UTRA for the terminal device.

[0106] As another implementation example, Figure 1c shows the LTE system architecture. The 4G core network can be an evolved packet core (EPC), including network elements such as the mobility management entity (MME) and the serving gateway (S-GW). The 4G radio access network can be an E-UTRAN, which can include network elements such as 4G base stations (eNBs) and 5G base stations (en-gNBs) connected to the EPC.

[0107] Optionally, in the example shown in Figure 1c, the serving base station eNB of the terminal device is responsible for providing the user plane and control plane protocol functions of LTE for the UE; the serving base station en-gNB of the terminal device is responsible for providing the user plane and control plane protocol functions of 5G NR for the terminal device.

[0108] It can be understood that the aforementioned Figures 1a to 1c are only examples of communication systems. In actual applications, the communication method provided in the present application can also be applied to the short-distance scenario as shown in Figure 1d, for example, the first terminal device plays the role of the aforementioned network device, and the second terminal device and the third terminal device play the role of the aforementioned terminal device. No specific limitation is made here.

[0109] In any of the implementation examples shown in Figures 1a to 1d above, the network device sends a Paging message to the terminal device using the PDSCH resource location. The terminal device periodically wakes up to monitor the PDCCH channel, then parses the DCI to further obtain the time-frequency location of the PDSCH channel. Finally, the terminal device parses the Paging content at the corresponding PDSCH channel location.

[0110] Among them, the terminal device wakes up periodically to monitor the PDCCH channel, that is, it only receives paging messages at fixed time-frequency domain locations. As shown in Figure 2, these fixed time-frequency domain locations are called paging occasions PO, and the radio frames where these POs are located are called paging frames PF. Among them, T represents the paging cycle, 1 paging cycle includes N PFs; 1 PF contains Ns POs; PO can also be called a set of PDCCH monitoring opportunities (PMO), PO contains multiple slots, and 1 PO contains S SSB beams (S is determined by ssb-PositionsInBurst in the system message block 1 message). Optionally, the maximum number of paging UEs supported by 1 PO is 32. The paging messages sent on each SSB beam are exactly the same.

[0111] Optionally, taking the terminal's identification information as UE_ID as an example, the terminal device can use the following formula 1 to calculate the system frame number (SFN) of the PF, and use the following formula 2 to calculate the sequence number i_s of the PO that the terminal device needs to monitor: After the terminal device calculates the system frame number of the PF and the index of the PO, it can successfully locate the PO corresponding to the terminal device. Formula 1: (SFN + PF_offset) mod T = (T div N) * (UE_ID mod N); Formula 2: i_s = floor (UE_ID / N) mod Ns;

[0112] Here, (SFN + PF_offset) mod T = (T div N) * (UE_ID mod N) indicates that all terminal devices are divided into N groups based on their UE_ID. The value of UE_ID mod N can be used to determine which group a terminal device belongs to and which PF it corresponds to. floor(UE_ID / N) mod Ns is equivalent to further dividing the terminals corresponding to a PF into Ns groups. The value of floor(UE_ID / N) mod Ns can be used to determine which group a terminal device belongs to, i.e., which PO it corresponds to. Furthermore, PF_offset is an offset value used to determine the PF. PF_offset can be pre-defined by the protocol or determined by the access network equipment and configured for the terminal device. T is the discontinuous reception (DRX) cycle, also known as the paging cycle. N is the number of PFs within DRX cycle T. Ns is the number of POs within a PF. "mod" represents the remainder after dividing the two numbers before and after mod. floor() indicates rounding down. "*" indicates multiplication. "div" indicates division. The value of UE_ID can be the terminal's 5G-S temporary mobile subscriber identity (5G-S-TMSI) mod 1024 or 5G-S-TMSI mod 4096, etc.

[0113] It should be understood that in the embodiment of the present application, the DRX cycle T, the number of PFs in the DRX cycle N, and the number of POs in a PF Ns can be dynamically configured as needed or pre-specified by the protocol, and are not limited here.

[0114] During the paging process, when multiple terminal devices monitor the same PO, if a paging is only targeted at some of the terminal devices, then for the terminal devices that are not paged, there will be unnecessary paging reception and thus unnecessary power consumption. This situation is called a false alarm.

[0115] From the implementation example of the above paging process, it can be seen that one of the main reasons for false paging alarms is the presence of multiple terminal devices monitoring the same PO. Because according to the calculation formula specified in the protocol, although the 5G-S-TMSI allocated under a core network may be different, the UE_ID (i.e., 5G-S-TMSI mod 1024) may be the same. According to the above PF, the method of determining PO, it can be seen that the PO positions calculated by different terminal devices may be the same. In addition, under the paging mechanism, the terminal device obtains the scheduling information of the paging message when receiving the paging DCI, but cannot know whether the paging message is for itself. The terminal device can only determine whether the paging is for this terminal device based on the terminal device identification information in the paging message after receiving and decoding the paging message on the PDSCH. Therefore, when multiple terminal devices monitor the same PO, if a certain paging is only for some of the terminal devices, then for the terminal devices that are not actually paged, there will be unnecessary paging reception, resulting in unnecessary terminal device power consumption.

[0116] Currently, network devices and terminal devices can introduce a paging early indication (PEI) mechanism to reduce the occurrence of false paging alarms. The network device can divide multiple terminal devices in the same point of view (PO) into multiple groups and, based on the PEI mechanism, indicate that terminal devices in certain specified groups within the multiple groups need to monitor paging messages in that PO. The basic idea of ​​this mechanism is to group terminal devices monitoring the same PO (i.e., group terminal devices on the same PO into different groups). When the network device performs paging, the PEI indicates the number of POs targeted by the paging and the different terminal device subgroups assigned to the terminal devices on each PO. This allows the terminal device to know whether it needs to receive a paging call before receiving the paging PDCCH and paging PDSCH (paging message), reducing the probability of the terminal device receiving and decoding paging calls unnecessarily, thereby reducing the power consumption caused by the terminal device receiving and decoding paging PDCCH and paging PDSCH (paging messages) that are not intended for the terminal device.

[0117] In addition, the grouping method in PEI includes the core network (CN) grouping method and the terminal identification (UE_ID) grouping method. The number of CN groups and UE_ID groups can be up to 8 respectively or the total number of the two groups is 8. Taking the terminal device as a UE and the network device as a base station (gNB) as an example, if the UE is assigned a CN subgroup ID and the gNB supports the CN grouping method, the CN grouping method is used; otherwise, the UE_ID grouping method is considered. The UE capability of the CN grouping method is the non-access stratum (NAS) capability, and the UE capability of the UE_ID grouping method is the access stratum (AS) capability.

[0118] For example, the CN grouping method is shown in Figure 3a. This example involves interactions between terminal devices, access network elements, and core network elements. The following example only takes the terminal device as a UE, the access network element as a gNB, and the core network element as an AMF as an example. The following describes steps 1 to 6 of the process corresponding to Figure 3a:

[0119] 1. The UE notifies the AMF that it supports the core network grouping mode. That is, the UE indicates support for CN-controlled sub-grouping through NAS signaling.

[0120] 2. AMF determines UE subgroup allocation. That is, if the UE supports CN-controlled subgrouping, the AMF determines the UE's subgroup ID allocation.

[0121] 3. The AMF assigns a subgroup ID to the UE. That is, the AMF sends the subgroup ID to the UE via NAS signaling.

[0122] 4. The AMF allocates a subgroup ID to the gNB. That is, the AMF notifies the gNB of the CN-assigned subgroup ID for paging UEs in idle or inactive states.

[0123] 5. The gNB determines the paging message for the UE. That is, when the UE's paging message is received from the CN or generated by the gNB, the gNB determines the UE's PO and the associated PEI timing.

[0124] 6. The gNB sends the PEI to the UE. Before paging the UE in the PO, the gNB transmits the associated PEI and indicates in the PEI the CN control subgroup of the UE to be paged.

[0125] An exemplary UE_ID grouping method is shown in Figure 3b. This example involves interaction between a terminal device and a network device. The following example only uses a UE as the terminal device and a gNB as the network device. Steps 1 to 5 of this process are described below, corresponding to Figure 3b:

[0126] 1. The gNB determines the total number of subgroups in the cell based on the UE_ID.

[0127] 2. The total number of UE_ID-based subgroups in the gNB broadcast cell.

[0128] 3. The UE determines its subgroup in the cell according to Formula 3. Formula 3: SubgroupID = (floor(UE_ID / (N*Ns))modsubgroupsNumForUEID) + (subgroupsNumPerPO subgroupsNumForUEID);

[0129] Where floor indicates rounding down, UE_ID indicates the UE identifier, N indicates the number of paging frames in a paging cycle, Ns indicates the number of paging occasions in a paging frame, SubgroupsNumForUEID indicates the number of subgroups grouped based on UEID, and subgroupsNumPerPO indicates the total number of subgroups in a PO.

[0130] 4. When the gNB receives a paging message for a UE supporting PEI from the CN or generated by the gNB, the gNB determines the UE's PO and the associated PEI opportunity.

[0131] 5. Before paging the UE in the PO, the gNB transmits the associated PEI and indicates the corresponding subgroup derived from the UE ID of the UE being paged in the PEI.

[0132] Optionally, PEI is indicated by the format (DCI format 2_7) PDCCH to indicate the terminal device. The PEIDCI payload is shown in Figure 4a. The PEIDCI payload includes: a paging indication field, a tracking reference signal (TRS) field, and a reserved field (Reserved bits). The total number of bits of the paging indication field (also known as the PO indication field) is equal to M (how many subgroups are in 1 PO) multiplied by N (how many POs are in 1 PEI). Generally, an identification bit of "1" represents that the terminal belonging to the subgroup needs to wake up to listen to the paging message, otherwise it is "0" which represents that the terminal belonging to the subgroup does not need to wake up to listen to the paging message. The TRS field is used to indicate the bits of the auxiliary TRS, with a total of 1-6 bits. Since it is not related to the embodiments of the present application, it will not be expanded here. The reserved field can be used for bits of other functions.

[0133] Exemplarily, PEI can indicate whether the terminal device subgroups in the following several POs and each PO need to monitor the paging PDCCH and paging PDSCH (paging message). An implementation example is shown in Figure 4b. Terminal device 1 (denoted as UE1 in the figure) and terminal device 4 (denoted as UE4 in the figure) are terminal device subgroup 1 of the first PO. Through the first subgroup of the M subgroups to which the first PO belongs in PEI, since the indication is "1", it indicates that terminal device 1 and terminal device 4 need to monitor PDCCH at the position of the first PO. After decoding the paging DCI, they decode PDSCH (paging message) according to the scheduling information indicated by the paging DCI. Terminal device 2 (denoted as UE2 in the figure) and terminal device 3 (denoted as UE3 in the figure) are terminal device subgroup 2 of the first PO. Through the first subgroup of the M subgroups to which the first PO belongs in PEI, since the indication is "0", it indicates that terminal device 2 and terminal device 3 do not need to monitor PDCCH at the position of the first PO.

[0134] In addition, the terminal device under the low power wake-up signal (LP-WUS) configuration adopts the main and auxiliary receiving link combined mode (as shown in Figure 5). The main link is in the ultra-deep sleep state before being awakened by the low power wake-up signal (LP-WUS).

[0135] Since LP-WUS can also be designed with subgroup granularity to reduce false alarms, how to combine LP-WUS with the PEI mechanism to monitor POs is a technical problem that needs to be solved urgently.

[0136] In order to solve the above technical problems, the embodiment of the present application provides a communication method and related devices, which first receives a first wake-up signal through a first receiver with lower operating power, and then receives a second wake-up signal through a second receiver with higher operating power, and then monitors paging based on the second wake-up signal. Since the second terminal group indicated by the second wake-up signal and the first terminal group indicated by the first wake-up signal include the terminal device, the first terminal group indicates the awakening of the terminal, and then the second paging group indicates the monitoring of the paging message, so as to achieve a double-layer grouping method for monitoring the paging message. On the one hand, a communication method suitable for a scenario in which a low-power wake-up signal and a paging advance indication are combined is provided. On the other hand, the terminal to be paged can be indicated in a finer granularity, reducing the probability of the terminal being paged, and the use of this finer-grained double-layer grouping method can reduce the energy loss of unnecessary monitoring of paging compared to the case where the terminal device directly monitors the paging message, thereby further reducing paging false alarms. This will be further explained below with reference to the accompanying drawings.

[0137] Please refer to Figure 6, which is a flow chart of the communication method provided in the present application. The method may include steps 601 to 603. Steps 601 to 603 are described in detail below. Steps 601 to 603 can be performed by a terminal device or a network device, or by some components in the terminal device or the network device (such as a processor, a chip or a chip system, etc.), or by a logic module or software that can realize all or part of the functions of the terminal device. The following description is taken as an example of execution by a terminal device or a network device. The processing performed by a single execution subject in steps 601 to 603 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 network device can be divided into executions by at least one of the CU, DU and RU.

[0138] Step 601: The network device sends a first wake-up signal to the terminal device.

[0139] The terminal device in the present application includes a first receiver and a second receiver, and the operating power of the first receiver is less than the operating power of the second receiver.

[0140] The first receiver may also be referred to as an auxiliary link receiver or a low power receiver (LR), and the second receiver may also be referred to as a main link receiver (MR) or a high power receiver.

[0141] The network device sends a first wake-up signal to the terminal device, and accordingly, the terminal device receives the first wake-up signal sent by the network device through a first receiver. The first wake-up signal includes first indication information, and the first indication information is used to indicate that the first terminal group is awakened.

[0142] The above can also be understood as the first indication information being used to indicate which groups of terminals are awakened, or the first indication information being used to indicate which groups of terminals need to monitor the PEI. The first receiver detects and receives the first wake-up signal. If the first terminal group includes the terminal device to which the first receiver belongs (or it is understood that the first indication information indicates that the terminal device is awakened, or it is understood that the terminal group number of the terminal device to which the first receiver belongs is in the first terminal group), the second receiver is awakened. Data is thus transmitted and received by the second receiver with higher operating power. The second receiver is in an ultra-deep sleep state before being awakened.

[0143] For example, the group whose identification bit in the first indication information is "1" indicates that the terminal devices belonging to the group need to be awakened. The group whose identification bit in the first indication information is "0" indicates that the terminal devices belonging to the group do not need to be awakened. Alternatively, the first receiver needs to determine whether the group whose identification bit in the first indication information is "1" contains the terminal device to which the first receiver belongs. If so, the second receiver is awakened to monitor PEI. If not, the second receiver can continue to remain in sleep mode.

[0144] In addition, the grouping method of the first terminal group can be the UE_ID grouping method or the CN grouping method mentioned above. For example, if the terminal device supports the CN grouping method, the AMF determines the UE subgroup ID. Otherwise, the UE_ID-based grouping method is adopted.

[0145] Optionally, the first indication information is calculated as shown in Formula 4:

[0146] Wherein, SubgroupID1 represents the group number of the first terminal group, floor represents rounding down, UE_ID represents the terminal identifier of the terminal device, N represents the number of paging frames in a paging cycle, N represents the number of paging frames in a paging cycle, s Indicates the number of paging opportunities in a paging frame, G 11 Indicates the number of terminal groups in the first terminal group within a paging occasion that adopt the UE_ID grouping method, G 12 Indicates the number of terminal groups using the CN grouping method in the first terminal group within a paging occasion.

[0147] Optionally, the UE_ID in the above formula 4 can reuse the definition of UE_ID in the PEI grouping method, that is, the value of UE_ID can be 5G-S-TMSI mod X. X is a real number. For example, in the case of extended discontinuous reception (eDRX), X is 32768; in other cases, X is 8192.

[0148] In addition, the truncated portion of the 5G-S-TMSI is used as the UEID of the terminal configured with LP-WUS. That is, the network side can assign a shorter UEID unique to the LP-WUS within the AMF. For example, the 5G-S-TMSI appears in the form of 16+16+16 bits. To save energy and reduce complexity, the LP-WUS terminal may only truncate 16 or 32 bits for the terminal UEID under the LP-WUS configuration. In actual applications, the TMSI value can also be set according to actual needs, and the specific value is not limited here.

[0149] Optionally, the first wake-up information is LP-WUS. Accordingly, the first terminal group mentioned above can also be called an LP-WUS group, SubgroupID2 can also be called group information based on LP-WUS, G 11 It can also be called the number of LP-WUS groups using UE_ID grouping within a paging occasion. 12 It can also be called the number of LP-WUS groups using the CN grouping method within a paging occasion. In this case, this step can also be understood as: the network device wakes up the terminal device using the LP-WUS of the sub-group granularity.

[0150] It is understandable that the above formula 4 is only an example, and in actual applications, the first indication information may be calculated in other ways, for example, by replacing rounding down with rounding up or rounding off, etc. The specifics are not limited here.

[0151] Step 602: The network device sends a second wake-up signal to the terminal device.

[0152] The network device sends a second wake-up signal to the terminal device, and correspondingly, the terminal device receives the second wake-up signal sent by the network device through the second receiver. The second wake-up signal is used to instruct the second terminal group to receive the paging message.

[0153] The above can also be understood as the second wake-up signal being used to indicate which groups of terminals need to monitor paging messages. If the second terminal group includes the terminal device (or understood as the second wake-up signal indicating that the terminal device needs to monitor paging messages, or understood as the terminal group number in which the terminal device is located is in the second terminal group), the paging message is subsequently monitored.

[0154] Optionally, the second wake-up information is PEI.

[0155] In addition, the present application also provides a double-layer grouping method, that is, the second terminal group can be a subgroup of the first terminal group, or it can be understood that the grouping effect of PEI is superimposed on the basis of LP-WUS grouping, and then the double-layer grouping can be more fine-grained, thereby reducing paging false alarms.

[0156] For example, an example of this dual-layer grouping is shown in FIG7 , where the LP-WUS group corresponds to the first terminal group, and the PEI group corresponds to the second terminal group. In the example of FIG7 , there are three LP-WUS groups, and each LP-WUS group includes three subgroups (i.e., PEI groups). It will be appreciated that the number of LP-WUS groups and the number of PEI groups in FIG7 are merely examples. In actual applications, the number of LP-WUS groups and the number of PEI groups can be greater or lesser, and this is not limited here.

[0157] The second wake-up signal in the embodiment of the present application can be provided in multiple ways, which are described below respectively:

[0158] First, the second wake-up signal includes second indication information.

[0159] In this case, the second terminal group includes a third terminal group, and the second indication information in the second wake-up signal is used to instruct the third terminal group to receive a paging message, wherein the devices in the third terminal group support a UE_ID grouping mode.

[0160] Optionally, when the third terminal group includes the terminal device, the terminal device receives the paging message. Correspondingly, when the third terminal group does not include the terminal device, the terminal device does not need to receive the paging message.

[0161] Optionally, if the second terminal group is a subgroup of the first terminal group, then in this case, the third terminal group in the second terminal group is a subgroup of the first terminal group.

[0162] In addition, there are multiple ways to carry the second indication information in this application. It can be carried in DCI (such as DCI format 2_7), or in newly defined information or other information, which is not specifically limited here.

[0163] Optionally, the second indication information is located in a first field of the DCI, and the DCI further includes a second field, where the second field is used to indicate that the fifth terminal group receives a paging message, and the devices in the fifth terminal group support the CN grouping mode or the UE_ID grouping mode. Furthermore, the first field is a reserved field of the DCI, and the second field is a paging indication field.

[0164] Optionally, the second indication information is calculated as shown in Formula 5:

[0165] Wherein, SubgroupID2 represents the group number of the third terminal group, floor represents rounding down, UE_ID represents the terminal identifier of the terminal device, N represents the number of paging frames in a paging cycle, N s represents the number of paging occasions in a paging frame, G1 represents the number of packets of the first terminal group in a paging occasion, and G2 represents the number of packets of the third terminal group in a paging occasion.

[0166] Formula 5 can also be understood as dividing by the group number used in the first layer.

[0167] Optionally, G1 can be broadcast to terminal devices by adding parameters to a broadcast message, or by informing the terminal devices through configuration or pre-configuration as described in the aforementioned glossary. G2 can be broadcast to terminal devices by reusing the parameter (subgroupsNumForUEID) in the broadcast message. Alternatively, G1 can be referred to as G_LP-WUS, and G2 as G_PEI.

[0168] For example, taking the example of broadcasting G1 to the terminal device in a manner of adding parameters in the broadcast message, specifically, subgroupsNumPerPOofLPWUS can be added in the system information block (SIB) 1 to indicate G1.

[0169] It is understood that the above formula 5 is only an example. In actual applications, the first indication information may be calculated in other ways, such as by replacing floor rounding with ceiling rounding or rounding off, or by adjusting the positions of G1 and / or G2 in formula 5. Specific limitations are not provided herein.

[0170] The second type is that the second wake-up signal includes third indication information.

[0171] In this case, the second terminal group includes a fourth terminal group, and the third indication information in the second wake-up signal is used to instruct the fourth terminal group to receive a paging message, wherein the devices in the fourth terminal group support a UE_ID grouping mode or a CN grouping mode.

[0172] The third indication information mentioned above can be understood as an existing PEI (which can be called a first PEI) mechanism, that is, the communication method provided by this application is compatible with the existing PEI mechanism.

[0173] Exemplarily, the third indication information is a legacy PEI CN paging indication field.

[0174] The third type is that the second wake-up signal includes second indication information and third indication information.

[0175] In this case, the second terminal group includes a third terminal group and a fourth terminal group, and the second indication information in the second wake-up signal is used to instruct the third terminal group to receive a paging message. The third indication information in the second wake-up signal is used to instruct the fourth terminal group to receive a paging message. The devices in the third terminal group support the UE_ID grouping mode. The devices in the fourth terminal group support the UE_ID grouping mode or the CN grouping mode.

[0176] The third indication information in this step can be understood as the existing PEI (which can be called the first PEI), and the second indication information can also be understood as the second PEI newly introduced in this application.

[0177] Furthermore, to reduce unnecessary DCI overhead, the second indication information and the third indication information can both be located in the same DCI. Specifically, the DCI includes a first field and a second field, the second indication information is located in the first field, the third indication information is located in the second field, and the third indication information is used to indicate that the fourth terminal group receives the paging message. The devices in the fourth terminal group support CN grouping or UE_IE grouping.

[0178] Exemplarily, continuing the example of FIG. 4 a , the above-mentioned DCI may be as shown in FIG. 8 , where the above-mentioned first field is a reserved field of the DCI (ie, indicating SubgroupID2), and the second field is a PO indication field in the DCI.

[0179] Optionally, in the case where the fourth terminal group indicated by the third indication information can support the UE_ID grouping mode or the CN grouping mode, and the third terminal group indicated by the second indication information supports the UE_ID grouping mode. Assume that M=8 in PO0 in the PO indication field of Figure 8, and Subgroup0 and Subgroup1 are CN grouping modes, and the remaining six groups (i.e., Subgroup2 to Subgroup7) are UE_ID grouping modes. Then X=6 in SubgroupID2 is indicated, that is, SubgroupID2 is for the third terminal group that supports the UE_ID grouping mode.

[0180] It is understandable that the above-mentioned second wake-up signal is only an example. In actual applications, the second wake-up signal can be set according to actual needs, and the specifics are not limited here.

[0181] It can be seen that the newly designed second PEI group indication monitored by LP-WUS does not affect the legacy PEI monitored by the traditional NR terminal, successfully achieving the compatibility of LP-WUS terminals and traditional NR terminals monitoring PEI.

[0182] Step 603: The terminal device receives a paging message based on the second wake-up signal.

[0183] After receiving the second wake-up signal, the terminal device receives a paging message based on the second wake-up signal.

[0184] Specifically, the second wake-up signal is used to indicate which groups of terminals need to monitor paging messages. If the second terminal group includes a terminal device (or it is understood that the second wake-up signal indicates that the terminal device needs to monitor the paging message, or it is understood that the terminal group number of the terminal device to which the first receiver belongs is in the second terminal group), the terminal device subsequently monitors or receives the paging message.

[0185] Corresponding to various situations of the second wake-up signal, this step corresponds to various situations, which are described below respectively:

[0186] First, the second wake-up signal includes second indication information.

[0187] In this case, the second terminal group includes a third terminal group, and the second indication information in the second wake-up signal is used to instruct the third terminal group to receive a paging message, wherein the devices in the third terminal group support a UE_ID grouping mode.

[0188] In this case, the terminal device receiving the paging message based on the second wake-up signal includes: the terminal device receiving the paging message based on the second indication information, that is, if the group to which the terminal device belongs belongs to the third terminal group, monitoring the paging message.

[0189] The second type is that the second wake-up signal includes third indication information.

[0190] In this case, the second terminal group includes a fourth terminal group, and the third indication information in the second wake-up signal is used to instruct the fourth terminal group to receive a paging message, wherein the devices in the fourth terminal group support a UE_ID grouping mode or a CN grouping mode.

[0191] In this case, the terminal device receiving the paging message based on the second wake-up signal includes: the terminal device receiving the paging message based on the third indication information, that is, if the group to which the terminal device belongs belongs to the fourth terminal group, monitoring the paging message.

[0192] The third type is that the second wake-up signal includes second indication information and third indication information.

[0193] In this case, the second terminal group includes a third terminal group and a fourth terminal group, and the second indication information in the second wake-up signal is used to instruct the third terminal group to receive a paging message. The third indication information in the second wake-up signal is used to instruct the fourth terminal group to receive a paging message. The devices in the third terminal group support the UE_ID grouping mode. The devices in the fourth terminal group support the UE_ID grouping mode or the CN grouping mode.

[0194] In this case, there are multiple situations in which the terminal device receives a paging message based on the second wake-up signal, which are described below respectively:

[0195] 1. The priority of the CN group is higher than the priority of the UE_ID group.

[0196] This situation can also be understood as follows: if the devices in the fourth terminal group support CN grouping, and the terminal group to which the terminal device belongs belongs to the fourth terminal group, then the terminal device receiving the paging message based on the second wake-up signal includes: the terminal device receiving the paging message based on the third indication information. That is, if the group to which the terminal device belongs belongs to the fourth terminal group, then the terminal device monitors the paging message.

[0197] Exemplarily, continuing the example of FIG. 8 , Subgroup0 and Subgroup1 in PO0 in the PO indication field of FIG. 8 are CN grouping modes. In this case, the terminal device only needs to monitor Subgroup0 and Subgroup1 in the PO indication field.

[0198] 2. When monitoring PEI, terminals under the LP-WUS configuration are required to monitor the second PEI group identifier based on the UEID double-layer grouping formula (ie, the second wake-up information includes the second indication information).

[0199] This situation can also be understood as the terminal device receiving the paging message based on the second wake-up signal includes: the terminal device receiving the paging message based on the second indication information, that is, if the group to which the terminal device belongs belongs to the third terminal group, then monitoring the paging message.

[0200] For example, continuing the example of FIG. 8 , X=6. In this case, the terminal device only needs to monitor Subgroup 0 to Subgroup 5 in Subgroup ID 2.

[0201] 3. Combined monitoring of CN group representation and the second PEI group identification based on the UEID double-layer grouping formula.

[0202] This situation can also be understood as, if the LP-WUS terminal is configured with CN grouping and UEID-based double-layer grouping (i.e., the combination of the first indication information and the second indication information), then the third indication information and the second indication information are monitored at the same time, and when both indication information are '1', the terminal device monitors the paging message.

[0203] Optionally, after the terminal device determines to monitor the paging message, it demodulates the PDCCH of the PO and the PDSCH related to the paging, and then performs random access and other processing procedures.

[0204] Based on the above technical solution, the terminal device first receives the first wake-up signal through a first receiver with lower working power, and then receives the second wake-up signal through a second receiver with higher working power, and then monitors the paging based on the second wake-up signal. Since the second terminal group indicated by the second wake-up signal and the first terminal group indicated by the first wake-up signal include the terminal device, the terminal is awakened by the first terminal group instruction, and then the paging message is monitored by the second paging group instruction, so as to realize the double-layer grouping method of monitoring the paging message. On the one hand, a communication method suitable for the scenario where a low-power wake-up signal and a paging advance indication are combined is provided. On the other hand, the terminal to be paged can be indicated in a finer granularity, reducing the probability of the terminal being paged, and the use of the finer-grained double-layer grouping method can reduce the energy loss of unnecessary monitoring of paging compared to the case where the terminal device directly monitors the paging message, thereby further reducing the paging false alarm.

[0205] In addition, the embodiment shown in Figure 6 can also be understood as a flowchart shown in Figure 9, which includes steps 901 to 905. Steps 901 to 905 are described in detail below. Steps 901 to 905 can be performed by a terminal device or a network device, or by some components in the terminal device or the network device (such as a processor, a chip or a chip system, etc.), or by a logic module or software that can realize all or part of the functions of the terminal device. The following description is taken as an example of execution by a terminal device or a network device. The processing performed by a single execution subject in steps 901 to 905 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 network device can be divided into executions by at least one of the CU, DU and RU.

[0206] Step 901: The network device sends a first wake-up signal to the terminal device.

[0207] The network device sends a first wake-up signal to the terminal device, and accordingly, the first receiver of the terminal device receives the first wake-up signal from the network device. The first indication information is used to indicate that the first terminal group is awakened. Alternatively, the first indication information is used to indicate whether the first receiver wakes up the second receiver.

[0208] Optionally, the first wake-up signal is configured to be received by the first receiver.

[0209] Step 902: The first receiver of the terminal device wakes up the second receiver.

[0210] When the first indication information is used to indicate that the terminal device to which the first receiver belongs is awakened, or the first indication information is used to indicate that the first receiver awakens the second receiver, the first receiver of the terminal device awakens the second receiver.

[0211] Among them, the above-mentioned wake-up process can be understood as a function trigger, for example, waking up the second receiver, and the terminal device subsequently uses the second receiver to send and receive data.

[0212] Step 903: The network device sends a second wake-up signal to the terminal device.

[0213] The network device sends a second wake-up signal to the terminal device, and correspondingly, the second receiver of the terminal device receives the second wake-up signal from the network device.

[0214] Optionally, the second wake-up signal is configured to be received by the second receiver.

[0215] The specific description of this step can refer to step 602 in the embodiment shown in Figure 6 above, and will not be repeated here.

[0216] Step 904: The terminal device receives a paging message based on the second wake-up signal.

[0217] The specific description of this step can refer to step 603 in the embodiment shown in Figure 6 above, and will not be repeated here.

[0218] Step 905: The terminal device performs random access and other processing based on the paging message.

[0219] After the terminal device monitors the paging message, it can perform random access and other processing procedures.

[0220] Based on the technical solution of Figure 9, on the one hand, a second PEI group indication formula applicable to the LP-WUS terminal is designed (determined by the LP-WUS group information and the PEI group information), so that the LP-WUS and PEI are combined with double-layer grouping to further reduce paging false alarms and effectively reduce the energy loss of unnecessary monitoring of paging. On the other hand, the second PEI group information indicator is newly designed to occupy the reserved bit of the PEIDCI payload, and at the same time, the combination of the second PEI group indication and the existing PEI group is given, and the priority of the specific use of the monitoring second PEI group indication and the legacy PEI group indication is specified. The newly designed second PEI group indication for LP-WUS monitoring does not affect the traditional NR terminal monitoring of legacy PEI, and successfully achieves the compatibility of LP-WUS terminals and traditional NR terminals monitoring PEI.

[0221] The above describes the present application from the perspective of the method, and the following describes the communication device provided by the present application.

[0222] Referring to Figure 10 , an embodiment of the present application provides a communication device 1000. This communication device 1000 can implement the functions of the terminal device in the above-described method embodiment, thereby also achieving the beneficial effects of the above-described method embodiment. In the embodiment of the present application, the communication device 1000 can be a terminal device, or it can be an integrated circuit or component within the terminal device, such as a chip. The following embodiments are described using the communication device 1000 as an example of a terminal device.

[0223] The communication device 1000 includes a first transceiver unit 1001 and a second transceiver unit 1002. The first transceiver unit 1001 receives a first wake-up signal, the first wake-up signal including first indication information, the first indication information being used to indicate that a first terminal group is awakened, the first terminal group including terminal devices. The second transceiver unit 1002 receives a second wake-up signal, the second wake-up signal being used to indicate that a second terminal group receives a paging message, the second terminal group including terminal devices. The second transceiver unit 1002 then receives a paging message based on the second wake-up signal.

[0224] Optionally, the apparatus 1000 may further include a processing unit that assists the second transceiver unit 1002 in receiving a paging message based on the second wake-up signal. Alternatively, the processing unit may assist the first transceiver unit 1001 and the second transceiver unit 1002 in determining a group identifier.

[0225] Of course, multiple transceiver units may be equipped with one processing unit, or one transceiver unit may be equipped with one processing unit. There is no limit on the number of processing units.

[0226] Referring to Figure 11 , an embodiment of the present application provides a communication device 1100. This communication device 1100 can implement the functions of the network device in the above-described method embodiment, thereby also achieving the beneficial effects of the above-described method embodiment. In this embodiment of the present application, the communication device 1100 can be a network device, or it can be an integrated circuit or component within the network device, such as a chip. The following embodiments are described using the communication device 1100 as a network device as an example.

[0227] The communication device 1100 includes a transceiver unit 1101, which sends a first wake-up signal, which is configured to be received by a first receiver. The first wake-up signal includes first indication information, which is used to indicate that the first terminal group is awakened, and the first terminal group includes terminal equipment; the transceiver unit 1101 sends a second wake-up signal, which is configured to be received by a second receiver, the operating power of the first receiver is less than the operating power of the second receiver, and the second wake-up signal is used to indicate that the second terminal group receives a paging message, the second terminal group includes terminal equipment, and the terminal equipment includes a first receiver and a second receiver.

[0228] Optionally, in actual applications, the communication device 1100 may further include a processing unit 1102 to assist the transceiver unit 1101 in completing the sending of the first wake-up signal and the second wake-up signal.

[0229] Please refer to Fig. 12, which is another schematic structural diagram of a communication device 1200 provided in this application. The communication device 1200 at least includes an input and output interface 1202. The communication device 1200 may be a chip or an integrated circuit.

[0230] Optionally, the communication device further includes a logic circuit 1201 .

[0231] The first transceiver unit 1001 and the second transceiver unit 1002 shown in FIG10 and the transceiver unit 1101 shown in FIG11 may be a communication interface, and the communication interface may be the input / output interface 1202 in FIG12 , and the input / output interface 1202 may include an input interface and an output interface. Alternatively, the communication interface may be a transceiver circuit, and the transceiver circuit may include an input interface circuit and an output interface circuit.

[0232] Optionally, when the communication device 1200 is a terminal device (or a component in a device) in the aforementioned embodiment, the input-output interface 1002 may include at least two such input-output interfaces, for example, the input-output interface 1002 includes a first input-output interface and a second input-output interface. The first input-output interface receives a first wake-up signal, the first wake-up signal includes first indication information, the first indication information is used to indicate that the first terminal group is awakened, and the first terminal group includes the terminal device. The second input-output interface receives a second wake-up signal, the second wake-up signal is used to indicate that the second terminal group receives a paging message, and the second terminal group includes the terminal device. The second input-output interface then receives a paging message based on the second wake-up signal.

[0233] Optionally, when the communication device 1200 is the network device (or component in the device) in the aforementioned embodiment, the input-output interface 1202 sends a first wake-up signal, the first wake-up signal includes first indication information, the operating power of the first receiver is less than the operating power of the second receiver, the first indication information is used to indicate that the first terminal group is awakened, and the second wake-up signal is used to indicate that the second terminal group receives a paging message, the first terminal group includes terminal devices, and the second terminal group includes terminal devices; the input-output interface 1202 sends a second wake-up signal.

[0234] The logic circuit 1201 and the input / output interface 1202 may also execute other steps executed by the network device in any embodiment and achieve corresponding beneficial effects, which will not be described in detail here.

[0235] Please refer to Figure 13, which shows the communication device 1300 involved in the above-mentioned embodiments provided in an embodiment of the present application. The communication device 1300 can specifically be a communication device serving as a terminal device in the above-mentioned embodiments. The example shown in Figure 13 is that the terminal device is implemented through the terminal device (or a component in the terminal device).

[0236] Herein, a possible logical structure diagram of the communication device 1300 is shown. The communication device 1300 may include but is not limited to at least one processor 1301 and a communication port 1302 .

[0237] Further optionally, the device may also include at least one of a memory 1303 and a bus 1304. In an embodiment of the present application, the at least one processor 1301 is used to control and process the actions of the communication device 1300.

[0238] In addition, the communication port 1302 may include a first communication port and a second communication port, wherein the first communication port corresponds to the first receiver in the aforementioned embodiment, and the second communication port corresponds to the second receiver in the aforementioned embodiment.

[0239] Processor 1301 may be a central processing unit (CPU), a general-purpose processor (GPPC), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device (PLD), a transistor logic device (TLD), a hardware component, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. Those skilled in the art will clearly understand that, for ease and brevity of description, the specific operating processes of the systems, devices, and units described above may refer to the corresponding processes in the aforementioned method embodiments and will not be further described here.

[0240] It should be noted that the communication device 1300 shown in Figure 13 can be specifically used to implement the steps implemented by the terminal device in the aforementioned method embodiment and achieve the corresponding technical effects of the terminal device. The specific implementation methods of the communication device shown in Figure 13 can refer to the description in the aforementioned method embodiment and will not be repeated here.

[0241] Please refer to Figure 14, which is a structural diagram of the communication device 1400 involved in the above-mentioned embodiments provided in an embodiment of the present application. The communication device 1400 can specifically be a communication device as a network device in the above-mentioned embodiments. The example shown in Figure 14 is that the network device is implemented through the network device (or a component in the network device), wherein the structure of the communication device can refer to the structure shown in Figure 14.

[0242] The communication device 1400 includes at least one processor 1411 and at least one network interface 1414. Further optionally, the communication device also includes at least one memory 1412, at least one transceiver 1413 and one or more antennas 1415. The processor 1411, the memory 1412, the transceiver 1413 and the network interface 1414 are connected, for example, via a bus. In an embodiment of the present application, the connection may include various interfaces, transmission lines or buses, etc., which are not limited in this embodiment. The antenna 1415 is connected to the transceiver 1413. The network interface 1414 is used to enable the communication device to communicate with other communication devices through a communication link. For example, the network interface 1414 may include a network interface between the communication device and the core network device, such as an S1 interface, and the network interface may include a network interface between the communication device and other communication devices (such as other network devices or core network devices), such as an X2 or Xn interface.

[0243] Processor 1411 is primarily used to process communication protocols and communication data, control the entire communication device, execute software programs, and process software program data, for example, to support the communication device in performing the actions described in the embodiments. The communication device may include a baseband processor and a central processing unit. The baseband processor is primarily used to process communication protocols and communication data, while the central processing unit is primarily used to control the entire terminal device, execute software programs, and process software program data. Processor 1411 in Figure 14 may integrate the functions of both a baseband processor and a central processing unit. Those skilled in the art will appreciate that the baseband processor and the central processing unit may also be independent processors interconnected via a bus or other technology. Those skilled in the art will appreciate that a terminal device may include multiple baseband processors to accommodate different network standards, multiple central processing units to enhance its processing capabilities, and various components of the terminal device may be connected via various buses. The baseband processor may also be referred to as a baseband processing circuit or a baseband processing chip. The central processing unit may also be referred to as a central processing circuit or a central processing chip. The functionality for processing communication protocols and communication data may be built into the processor or stored in memory as a software program, which is executed by the processor to implement the baseband processing functionality.

[0244] The memory is primarily used to store software programs and data. Memory 1412 may exist independently and be connected to processor 1411. Alternatively, memory 1412 may be integrated with processor 1411, for example, within a single chip. Memory 1412 may store program code for executing the technical solutions of the embodiments of the present application, and execution is controlled by processor 1411. The various computer program codes executed may also be considered drivers for processor 1411.

[0245] Figure 14 shows only one memory and one processor. In an actual terminal device, there may be multiple processors and multiple memories. The memory may also be referred to as a storage medium or a storage device. The memory may be a storage element on the same chip as the processor, i.e., an on-chip storage element, or an independent storage element, which is not limited in the present embodiment.

[0246] The transceiver 1413 can be used to support the reception or transmission of radio frequency signals between the communication device and the terminal. The transceiver 1413 can be connected to the antenna 1415. The transceiver 1413 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 1415 can receive radio frequency signals. The receiver Rx of the transceiver 1413 is used to receive the radio frequency signal from the antenna, convert the radio frequency signal into a digital baseband signal or a digital intermediate frequency signal, and provide the digital baseband signal or digital intermediate frequency signal to the processor 1411 so that the processor 1411 can further process the digital baseband signal or digital intermediate frequency signal, such as demodulation and decoding. In addition, the transmitter Tx in the transceiver 1413 is also used to receive a modulated digital baseband signal or digital intermediate frequency signal from the processor 1411, convert the modulated digital baseband signal or digital intermediate frequency signal into a radio frequency signal, and transmit the radio frequency signal through one or more antennas 1415. Specifically, the receiver Rx can selectively perform one or more stages of down-mixing and analog-to-digital conversion on the RF signal to obtain a digital baseband signal or a digital intermediate frequency signal. The order of the down-mixing and analog-to-digital conversion processes is adjustable. The transmitter Tx can selectively perform one or more stages of up-mixing and digital-to-analog conversion on the modulated digital baseband signal or digital intermediate frequency signal to obtain a RF signal. The order of the up-mixing and digital-to-analog conversion processes is adjustable. The digital baseband signal and the digital intermediate frequency signal may be collectively referred to as digital signals.

[0247] The transceiver 1413 may also be referred to as a transceiver unit, a transceiver, a transceiver device, etc. Optionally, a device in the transceiver unit that implements a receiving function may be referred to as a receiving unit, and a device in the transceiver unit that implements a transmitting function may be referred to as a transmitting unit. That is, the transceiver unit includes a receiving unit and a transmitting unit. The receiving unit may also be referred to as a receiver, an input port, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0248] It should be noted that the communication device 1400 shown in Figure 14 can be specifically used to implement the steps implemented by the network device in the aforementioned method embodiment, and to achieve the corresponding technical effects of the network device. The specific implementation methods of the communication device 1400 shown in Figure 14 can refer to the description in the aforementioned method embodiment, and will not be repeated here.

[0249] An embodiment of the present application further provides a computer-readable storage medium storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes the method described in the possible implementation manner of the terminal device in the aforementioned embodiment.

[0250] An embodiment of the present application further provides a computer-readable storage medium storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes the method described in the possible implementation of the network device in the aforementioned embodiment.

[0251] An embodiment of the present application also provides a computer program product (or computer program) that stores one or more computers. When the computer program product is executed by the processor, the processor executes the method of the possible implementation method of the above-mentioned terminal device.

[0252] An embodiment of the present application also provides a computer program product storing one or more computers. When the computer program product is executed by the processor, the processor executes the method of the possible implementation of the above-mentioned network device.

[0253] An embodiment of the present application also provides a chip system, which includes at least one processor for supporting a communication device to implement the functions involved in the possible implementation methods of the above-mentioned communication device. Optionally, the chip system also includes an interface circuit, which provides program instructions and / or data to the at least one processor. In one possible design, the chip system may also include a memory, which is used to store the necessary program instructions and data for the communication device. The chip system can be composed of a chip, or it can include a chip and other discrete devices, wherein the communication device can specifically be the terminal device in the aforementioned method embodiment.

[0254] An embodiment of the present application also provides a chip system, which includes at least one processor for supporting a communication device to implement the functions involved in the possible implementation methods of the above-mentioned communication device. Optionally, the chip system also includes an interface circuit, which provides program instructions and / or data to the at least one processor. In one possible design, the chip system may also include a memory, which is used to store the necessary program instructions and data for the communication device. The chip system can be composed of a chip, or it can include a chip and other discrete devices, wherein the communication device can specifically be the network device in the aforementioned method embodiment.

[0255] An embodiment of the present application also provides a communication system, which includes the terminal device and network device in any of the above embodiments.

[0256] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0257] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0258] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0259] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

Claims

1. A communication method, characterized in that: The method is applied to a terminal device, the terminal device includes a first receiver and a second receiver, the working power of the first receiver is less than the working power of the second receiver, and the method includes: receiving, by the first receiver, a first wake-up signal, wherein the first wake-up signal includes first indication information, and the first indication information is used to indicate that a first terminal group is awakened, and the first terminal group includes the terminal device; receiving, by the second receiver, a second wake-up signal, where the second wake-up signal is used to instruct a second terminal group to receive the paging message, where the second terminal group includes the terminal device; The paging message is received based on the second wake-up signal.

2. The method according to claim 1, characterized in that The second terminal group is a subgroup of the first terminal group.

3. The method according to claim 1 or 2, characterized in that: The second terminal group includes a third terminal group, the second wake-up signal includes second indication information, and the second indication information is used to indicate that the third terminal group receives a paging message; the third terminal group in the second terminal group is a subgroup of the first terminal group, the devices in the third terminal device group support a terminal identification grouping method, and the third terminal group in the second terminal group includes the terminal device.

4. The method according to any one of claims 1 to 3, characterized in that The second terminal group includes a fourth terminal group, the second wake-up signal includes third indication information, the third indication information is used to indicate that the fourth terminal group receives a paging message, the devices in the fourth terminal device group support a core network grouping mode or a terminal identification grouping mode, and the fourth terminal group in the second terminal group includes the terminal device.

5. The method according to claim 3, characterized in that: The second indication information is located in the first field of the downlink control information DCI, and the DCI also includes a second field, and the second field is used to indicate that the fifth terminal group receives the paging message, and the devices in the fifth terminal device group support the core network grouping method or support the terminal identification grouping method.

6. The method according to claim 3 or 5, characterized in that: The calculation formula of the second indication information is as follows: Wherein, SubgroupID2 represents the group number of the third terminal group, floor represents rounding down, UE_ID represents the terminal identifier of the terminal device, N represents the number of paging frames in a paging cycle, and N s represents the number of paging occasions in a paging frame, G1 represents the number of groups of the first terminal group in a paging occasion, and G2 represents the number of groups of the third terminal group in a paging occasion.

7. The method according to any one of claims 3, 5 and 6, characterized in that: The first indication information is a low power consumption wake-up signal LP-WUS, and the second indication information is a paging early indication PEI.

8. A communication method, characterized in that: The method is applied to a network device, and the method comprises: Sending a first wake-up signal, where the first wake-up signal is configured to be received by a first receiver, where the first wake-up signal includes first indication information, where the first indication information is used to indicate that a first terminal group is awakened, where the first terminal group includes terminal devices; A second wake-up signal is sent, where the second wake-up signal is configured to be received by a second receiver, the operating power of the first receiver is less than the operating power of the second receiver, the second wake-up signal is used to instruct a second terminal group to receive the paging message, the second terminal group includes the terminal device, and the terminal device includes the first receiver and the second receiver.

9. The method according to claim 8, characterized in that The second terminal group is a subgroup of the first terminal group.

10. The method according to claim 8 or 9, characterized in that: The second terminal group includes a third terminal group, the second wake-up signal includes second indication information, and the second indication information is used to indicate that the third terminal group receives a paging message; the third terminal group in the second terminal group is a subgroup of the first terminal group, the devices in the third terminal device group support a terminal identification grouping method, and the third terminal group in the second terminal group includes the terminal device.

11. The method according to any one of claims 8 to 10, characterized in that The second terminal group includes a fourth terminal group, the second wake-up signal includes third indication information, the third indication information is used to indicate that the fourth terminal group receives a paging message, the devices in the fourth terminal device group support a core network grouping mode or a terminal identification grouping mode, and the fourth terminal group in the second terminal group includes the terminal device.

12. The method according to claim 10, characterized in that The second indication information is located in the first field of the downlink control information DCI, and the DCI also includes a second field, and the second field is used to indicate that the fifth terminal group receives the paging message, and the devices in the fifth terminal device group support the core network grouping method or support the terminal identification grouping method.

13. The method according to claim 10 or 12, characterized in that: The calculation formula of the second indication information is as follows: Wherein, SubgroupID2 represents the group number of the third terminal group, floor represents rounding down, UE_ID represents the terminal identifier of the terminal device, N represents the number of paging frames in a paging cycle, and N s represents the number of paging occasions in a paging frame, G1 represents the number of groups of the first terminal group in a paging occasion, and G2 represents the number of groups of the third terminal group in a paging occasion.

14. The method according to any one of claims 10, 12 and 13, characterized in that: The first indication information is a low power consumption wake-up signal LP-WUS, and the second indication information is a paging early indication PEI.

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

16. A communication device, characterized in that: The method comprises at least one processor configured to execute the method according to any one of claims 1 to 14.

17. A computer-readable storage medium, characterized in that: The medium stores instructions, and when the instructions are executed by a computer, the method according to any one of claims 1 to 14 is implemented.

18. A computer program product, characterized in that The method comprises instructions which, when executed on a computer, cause the computer to execute the method according to any one of claims 1 to 14.

19. A communication system, characterized in that: The communication system includes terminal equipment and network equipment; The terminal device is used to execute the method according to any one of claims 1 to 7, and the network device is used to execute the method according to any one of claims 8 to 14.

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