Communication method and communication device

Abstract

The invention provides a communication method and a communication device, which can be applied to a scene in which a low power wake Up signal (LP-WUS) is combined with a paging advance indication (PEI), and is used for reducing a paging false alarm in a manner of monitoring a paging message in a double-layer grouping manner. In the method, a first wake-up signal is received by a first receiver with relatively low working power, a second wake-up signal is received by a second receiver with relatively high working power, and 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 comprise the terminal device, the terminal is woken up through the indication of the first terminal group, and then the paging message is monitored through the indication of the second paging group, so that the paging message is monitored in a double-layer grouping mode. According to the invention, the terminal to be paged can be indicated in a finer-grained manner, the probability that the terminal is paged is reduced, and the paging false alarm can be further reduced.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a communication method and a communication device. Background Art

[0002] In a communication system, when multiple terminal devices monitor the same paging occasion (PO), if a paging is only for some of the multiple terminal devices, then for the terminal devices that are not paged, there will be unnecessary paging reception and unnecessary power consumption. This situation is called a paging false alarm.

[0003] Currently, network devices and terminal devices can introduce a paging early indication (PEI) mechanism to reduce the occurrence of paging false alarms. The network device can divide multiple terminal devices in the same PO into multiple groups, and indicate based on the PEI mechanism that terminal devices in certain groups specified in the multiple groups need to monitor paging messages in the PO.

[0004] In addition, the terminal device under the low power wake-up signal (LP-WUS) configuration adopts the main and auxiliary receiving link combination mode. The main link is in ultra-deep sleep state before being awakened by LP-WUS. The LP-WUS signal can be designed to a sub-group granularity to reduce wake-up false alarms.

[0005] Therefore, how to combine LP-WUS and PEI mechanisms to monitor PO is a technical problem that needs to be solved urgently. Summary of the invention

[0006] 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.

[0007] 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 working power of the first receiver is less than the working 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, 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 (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.

[0008] Based on the above technical solution, the first wake-up signal is first received by a first receiver with a relatively low working power, and then the second wake-up signal is received by a second receiver with a relatively high 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 terminal is awakened by indicating the first terminal group, and then the paging message is monitored by indicating the second paging group, so as to realize the monitoring of the paging message in a double-layer grouping manner. 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 to reduce the probability of the terminal being paged, and the use of the more fine-grained double-layer grouping method can reduce the energy loss of unnecessary monitoring of paging compared to the case in which the terminal device directly monitors the paging message, thereby further reducing the paging false alarm.

[0009] 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, 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 network device functions. In this method, a first wake-up signal is sent, the first wake-up signal is configured to be received by a first receiver, 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; a second wake-up signal is sent, the second wake-up signal is configured to be received by a second receiver, the working power of the first receiver is less than the working power of the 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. Among them, the terminal device includes a first receiver and a second receiver.

[0010] 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 to reduce 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 situation 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.

[0011] 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 located is both in the large group of the first terminal group and in the small group of the second terminal group.

[0012] 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.

[0013] 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 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 (UE_ID) mode, and the third terminal group in the second terminal group includes terminal devices. Accordingly, the above step of: receiving a paging message based on the second wake-up signal includes: receiving a paging message based on the second indication information.

[0014] In addition, the second indication information mentioned above can be understood as a newly introduced PEI (referred to herein as the second PEI).

[0015] 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 terminal identification grouping (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.

[0016] 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 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. Accordingly, the above step of: receiving a paging message based on the second wake-up signal includes: receiving a paging message based on the third indication information.

[0017] In addition, the third indication information mentioned above can be understood as an existing PEI (referred to as the first PEI herein).

[0018] Based on the above technical solution, it can be 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.

[0019] 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 a paging message, and the devices in the fifth terminal device group support the core network grouping method or support the terminal identification grouping method.

[0020] Based on the above technical solution, when the newly designed second PEI of the present application and the existing first PEI both exist, the DCI overhead can be reduced. For example, the second PEI in the newly designed double-layer grouping can be in the reserved field of the DCI corresponding to the existing first PEI, so that a DCI can be implemented to indicate different PEI mechanisms. Not only can the overhead be reduced, but also the compatibility of the present solution can be improved.

[0021] In a possible implementation manner of the first aspect or the second aspect, a calculation formula for the second indication information is as follows:

[0022]

[0023] 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 Indicates the number of paging occasions in a paging frame, G 1 Indicates the number of groups of the first terminal group within a paging occasion, G 2 Indicates the number of groups of the third terminal group within one paging occasion.

[0024] 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.

[0025] 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.

[0026] In a possible implementation manner of the first aspect or the second aspect, 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.

[0027] 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.

[0028] In a third aspect of the present application, a communication device is provided, which can implement the method in the first aspect or any possible implementation of the first aspect. The device includes corresponding units or modules for executing the above 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.

[0029] 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 a 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 a 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.

[0030] Optionally, the device may further include a processing unit, configured to receive a paging message based on the second wake-up signal. Alternatively, the transceiver unit cooperates with the processing unit to receive a paging message based on the second wake-up signal.

[0031] In a fourth aspect of the present application, a communication device is provided, which can implement the method in the first aspect or any possible implementation of the first aspect. The device includes corresponding units or modules for executing the above 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 a 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.

[0032] The device includes a transceiver unit; the transceiver unit is used to send a first wake-up signal, the first wake-up signal is configured to be received by a first receiver, the first wake-up signal includes first indication information, the first indication information is used to indicate that a first terminal group is awakened, and the first terminal group includes a terminal device; the transceiver unit is also used to send a second wake-up signal, the second wake-up signal is configured to be received by a second receiver, the working power of the first receiver is less than the working 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. The terminal device includes a first receiver and a second receiver, and the terminal device includes a first receiver and a second receiver.

[0033] 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.

[0034] 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.

[0035] 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 support a terminal identification grouping mode, and the fourth 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 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 a paging message, and the devices in the fifth terminal device group support the core network grouping method or support the terminal identification grouping method.

[0037] In a possible implementation manner of the third aspect or the fourth aspect, a calculation formula for the second indication information is as follows:

[0038]

[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, and N s Indicates the number of paging occasions in a paging frame, G 1 Indicates the number of groups of the first terminal group within a paging occasion, G2 Indicates the number of groups of the third terminal group within one paging occasion.

[0040] In a possible implementation manner of the third aspect or the fourth aspect, 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.

[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 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 second aspect is implemented.

[0043] A seventh aspect of an embodiment of the present application provides a communication device, including 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 first aspect.

[0044] In an eighth aspect, an embodiment of the present application provides a communication device, including 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, the communication device comprising at least one processor, for implementing the functions involved in the method described in any possible implementation of any aspect of the first aspect. The communication device may also include a memory, the memory being used to store program instructions and data necessary for the communication device. Optionally, the communication device further comprises an interface circuit, and the communication device provides program instructions and / or data to the at least one processor.

[0046] The tenth aspect of the embodiment of the present application provides a communication device, the communication device includes at least one processor, which is used to implement the functions involved in the method described in any possible implementation method of any aspect of the first aspect. The communication device may also include a memory, the memory is used to store the necessary program instructions and data of the communication device. Optionally, the communication device also includes an interface circuit, and the communication device provides 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 may be a terminal device or a network device, or a chip or a chip system in the terminal device or the network device. The chip system may be composed of a chip, or may include a chip 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 a method as described in any possible implementation method of any one 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 method of any one of the first and second aspects above.

[0050] The thirteenth aspect of the embodiment of the present application provides a communication system, which includes the terminal device in the first aspect and the network device in the second aspect. Alternatively, the communication system includes the communication device in the fifth aspect and the communication device in the sixth aspect, or the communication system includes the communication device in the seventh aspect and the communication device in the eighth aspect, or the communication system includes the communication device in the ninth aspect and the communication device in 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 different design methods in any aspect of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1a A schematic diagram of a communication scenario provided for this application;

[0053] Figure 1b Another schematic diagram of the communication scenario provided for this application;

[0054] Figure 1c Another schematic diagram of the communication scenario provided for this application;

[0055] Figure 1d Another schematic diagram of the communication scenario provided for this application;

[0056] Figure 2 A schematic diagram of the paging mechanism provided for this application;

[0057] Figure 3a A schematic diagram of a communication process in a grouping mode provided by this application;

[0058] Figure 3b A schematic diagram of another communication process in a grouping mode provided by this application;

[0059] Figure 4a A schematic diagram of the DCI provided for this application;

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

[0061] Figure 5 A schematic diagram of the receiver architecture under the LP-WUS configuration provided in this application;

[0062] Figure 6 A flow chart of the communication method provided by this application;

[0063] Figure 7 A schematic diagram of a double-layer grouping provided for this application;

[0064] Figure 8 Another schematic diagram of the DCI provided for this application;

[0065] Fig. 9 Another flowchart of the communication method provided by the present application;

[0066] Fig.10 A schematic diagram of a communication device provided for this application;

[0067] Fig.11 Another schematic diagram of a communication device provided by the present application;

[0068] Fig.12 Another schematic diagram of a communication device provided by the present application;

[0069] Fig.13 Another schematic diagram of a communication device provided by the present application;

[0070] Fig.14 Another schematic diagram of a communication device provided by the present application. DETAILED DESCRIPTION

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

[0072] First, some terms 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 may be a wireless terminal device capable of receiving network device scheduling and indication information. The wireless terminal device may 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] The terminal device can communicate with one or more core networks or the Internet via a radio access network (RAN). The terminal device can be a mobile terminal device, such as a mobile phone (or "cellular" phone, mobile phone), a computer and a data card. For example, it can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with the radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablet computers (Pads), computers with wireless transceiver functions, and other devices. The 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 device, an access terminal device, a user terminal device (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. The terminal device may also be a wearable device and 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), etc.

[0076] 2. Network equipment

[0077] The network device may be a device in a wireless network, for example, the network device may be a radio access network (RAN) node (or device) that connects the terminal device to the wireless network, which may also be referred to as a base station. At present, some examples of RAN devices are: a new generation base station (generation Node B, gNodeB) in a 5G communication system, a transmission reception point (transmission reception point, TRP), an evolved Node B (evolved Node B, eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved Node B, or home Node B, HNB), a base band unit (base band unit, BBU), or a wireless fidelity (wireless fidelity, Wi-Fi) access point (access point, AP), etc. In addition, in a network structure, the network device may include a centralized unit (CU) node, a distributed unit (DU) node, or a RAN device including 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 configuration between the network device and the terminal device is aligned; or, through the network configuration preset in the network device and the network configuration preset in the terminal device, the network configuration between the network device and the terminal device is aligned. Specifically, "alignment" means that when there is an interactive message between the network device and the terminal device, the two have a consistent understanding of the carrier frequency for sending and receiving the interactive message, 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 other devices that provide wireless communication functions for the terminal device. The embodiments of the present application do not limit the specific technology and specific device form used by the network device. For the convenience of description, the embodiments of the present application do not limit.

[0080] The network device may also 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 embodiment of the present application, the device for realizing the function of the network device may be a network device, or may be a device capable of supporting the network device to realize the function, such as a chip system, which may be installed in the network device. In the technical solution provided in the embodiment of the present application, the technical solution provided in the embodiment of the present application is described by taking the device for realizing the function of the network device as an example that the network device is used as the device.

[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 connection state: The terminal device has established an RRC connection with the network and can transmit data. The RRC connection state can also be referred to as the connection state. In this article, "connection state" and "RRC connection state" are the same concept and the two names can be interchanged.

[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 the two names can be interchanged.

[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 the RRC recovery process (or called the RRC connection recovery process). Compared with the RRC establishment process, the RRC recovery process has a shorter delay and less 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 a possible design, the process includes: a network-side device (such as an access network device) can calculate a paging occasion (PO) corresponding to the terminal, and the PO appears periodically. The period in which the terminal's own PO appears is called a paging period. 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 a 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. Correspondingly, the terminal side device (such as a 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), so that the terminal device can wake up only at a fixed time to receive paging messages, and can sleep for the rest of the time to reduce power consumption and increase battery life. For example, each wake-up cycle is a DRX cycle, and there are one or more paging frames (PF) in a DRX cycle. 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 occasion is the time domain position / time interval at which the terminal monitors the paging DCI. When determining the position of a PO, you must first confirm the position of a paging frame (PF), and then determine the final position 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 start position of the PF. For example, the start of the first PO in the PF is the same as the start position of the PF, the start position of the second PO overlaps with the end 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 at the same time. 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, or parameter information or parameter values ​​used by the base station / network device or terminal device specified by 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. Receiving

[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 may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the objects associated with each other 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 items 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 in this application, and the various methods / designs / implementations in each embodiment, if there is no special description 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 implementation methods of this application described below do not constitute a limitation on the scope of protection of this application.

[0101] See also Figure 1a , which is a schematic diagram of a communication system in this application. Figure 1a In the example, a network device and six terminal devices are shown, and the six terminal devices are terminal device 1, terminal device 2, terminal device 3, terminal device 4, terminal device 5, and terminal device 6. Figure 1a In the example shown, terminal device 1 is a smart tea cup, terminal device 2 is a smart air conditioner, terminal device 3 is a smart gas station, terminal device 4 is a vehicle, terminal device 5 is a mobile phone, and terminal device 6 is a printer.

[0102] like Figure 1aAs shown, during the communication process, the signal sending device (or called the transmitting end, the transmitting end device) can be a network device, and the signal receiving device (or called the receiving end, the 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 This is a 5G NR system architecture diagram. The 5G core network (5GC) may include network elements such as access and mobility management function (AMF) and user plane function (UPF). The 5G radio access network (NG-RAN) may include network elements such as the 5G access network (denoted as gNB) and the 4G access network (denoted as ng-eNB) connected to the 5GC.

[0105] Optionally, in Figure 1b In the example shown, 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 This is a diagram of the LTE system architecture. The 4G core network may be an evolved packet core (EPC), including network elements such as a mobility management entity (MME) and a serving gateway (S-GW). The 4G wireless access network may be an E-UTRAN, including network elements such as a 4G base station (denoted as eNB) and a 5G base station (denoted as en-gNB) connected to the EPC.

[0107] Optionally, in Figure 1cIn the example shown, 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 is understandable that the aforementioned Figure 1a to Figure 1c This is just an example of a communication system. In practical applications, the communication method provided by this application can also be applied to Figure 1d In the short-distance scenario shown, 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, which is not specifically limited here.

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

[0110] The terminal device periodically wakes up to monitor the PDCCH channel, that is, it only receives paging messages at fixed time-frequency domain locations. Figure 2 As shown in the figure, these fixed time-frequency domain positions are called paging opportunities PO, and the wireless 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 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 serial 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.

[0112] Formula 1: (SFN+PF_offset)mod T=(T div N)*(UE_ID mod N);

[0113] Formula 2: i_s=floor(UE_ID / N)mod Ns;

[0114] Among them, (SFN+PF_offset)mod T=(T div N)*(UE_ID mod N) means that all terminal devices are divided into N groups according to UE_ID. The value of UE_ID mod N can determine which group the terminal device is in and which PF it corresponds to. floor(UE_ID / N)mod Ns is equivalent to further dividing the terminal corresponding to a PF into Ns groups. According to the value of floor(UE_ID / N)mod Ns, the group corresponding to the terminal device can be determined, that is, the PO. In addition, PF_offset is an offset value used to determine the PF. PF_offset can be pre-specified by the protocol or determined by the access network device and configured to the terminal device. T is the discontinuous reception (DRX) cycle, which can also be called the paging cycle, and N is the number of PFs in the DRX cycle T. Ns is the number of POs in a PF. "mod" indicates the remainder obtained by dividing the two numbers before and after mod. floor() is rounded down. "*" is multiplication calculation. "div" is division calculation. 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.

[0115] It should be understood that in the embodiment of the present application, the DRX cycle T, the number of PFs N in the DRX cycle, and the number of POs Ns in a PF can be dynamically configured as needed or pre-determined by the protocol, and are not limited here.

[0116] During the paging process, when multiple terminal devices monitor the same PO, if a certain paging is only for some of the multiple terminal devices, then for the terminal devices that are not paged, there will be unnecessary paging reception and unnecessary power consumption. This situation is called a false alarm.

[0117] From the implementation example of the above paging process, it can be seen that one of the main reasons for the generation of false paging alarms is the existence 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, when the terminal device receives the paging DCI, it obtains the scheduling information of the paging message, but cannot know whether the paging message is for itself. The terminal device can only determine whether the paging is for this terminal device according to 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 is unnecessary paging reception, resulting in unnecessary terminal device power consumption.

[0118] At present, network equipment and terminal equipment can introduce a paging early indication (PEI) mechanism to reduce the occurrence of paging false alarms. Among them, the network equipment can divide multiple terminal devices in the same PO into multiple groups, and indicate based on the PEI mechanism that terminal devices in certain groups specified in the multiple groups need to monitor paging messages in the PO. The basic idea of ​​this mechanism is to group terminal devices that monitor the same PO (that is, to divide terminal devices on the same PO into different groups). When the network device is paging, PEI indicates the number of POs targeted by this paging and the terminal devices on each PO are divided into different terminal device subgroups. Before receiving the paging PDCCH and paging PDSCH (paging message), the terminal device can know whether it needs to receive paging this time, reduce the probability of unnecessary reception and decoding of paging by the terminal device, and thus reduce the power consumption generated by the terminal device receiving and decoding paging PDCCH and paging PDSCH (paging message) that are not for the terminal device.

[0119] In addition, the grouping methods in PEI include core network (CN) grouping method and terminal identification (UE_ID) grouping method. The number of CN groups and UE_ID groups can be up to 8 or the total number of the two groups is 8. Taking the terminal device as UE and the network device as 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.

[0120] For example, the CN grouping method is as follows: Figure 3a As shown, this example involves the interaction between the terminal device, the access network element, and the core network element. The following only takes the terminal device as UE, the access network element as gNB, and the core network element as AMF as an example. Figure 3a The process consists of steps 1 to 6:

[0121] 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.

[0122] 2. AMF determines the UE subgroup allocation. That is, if the UE supports CN-controlled subgroups, AMF determines the UE subgroup ID allocation.

[0123] 3. AMF assigns a subgroup ID to the UE. That is, AMF sends the subgroup ID to the UE via NAS signaling.

[0124] 4. AMF allocates a subgroup ID to gNB. That is, AMF notifies gNB to page the CN-allocated subgroup ID of the UE in idle or inactive state.

[0125] 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.

[0126] 6. The gNB sends the PEI to the UE. That is, before paging the UE in the PO, the gNB transmits the associated PEI and indicates the CN control subgroup corresponding to the UE to be paged in the PEI.

[0127] For example, the UE_ID grouping method is as follows: Figure 3b As shown, this example involves the interaction between the terminal device and the network device. The following only takes the terminal device as UE and the network device as gNB as an example. Figure 3b The process consists of steps 1 to 5:

[0128] 1. The gNB determines the total number of subgroups in the cell based on the UE_ID.

[0129] 2. The total number of subgroups based on UE_ID in the gNB broadcast cell.

[0130] 3. The UE determines its subgroup in the cell according to formula 3.

[0131] Formula 3: SubgroupID=(floor(UE_ID / (N*Ns))modsubgroupsNumForUEID)+

[0132] (subgroupsNumPerPO subgroupsNumForUEID);

[0133] Among them, floor means rounding down, UE_ID means the identifier of UE, N means the number of paging frames in one paging cycle, Ns means the number of paging occasions in one paging frame, SubgroupsNumForUEID means the number of subgroups grouped based on UEID, and subgroupsNumPerPO means the total number of subgroups in one PO.

[0134] 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 timing.

[0135] 5. Before paging the UE in 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.

[0136] Optionally, PEI is indicated by PDCCH in the format (DCI format 2_7) of the terminal device. Figure 4aAs shown, 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 there in 1 PO) multiplied by N (how many POs are there in 1 PEI). Generally, an identification bit of "1" represents that the terminal belonging to the subgroup needs to wake up and listen to the paging message, whereas a "0" represents that the terminal belonging to the subgroup does not need to wake up and 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.

[0137] For example, PEI can indicate whether the following several POs and the terminal device subgroup in each PO need to monitor the paging PDCCH and paging PDSCH (paging message). An implementation example is as follows Figure 4b As shown, terminal device 1 (represented as UE1 in the figure) and terminal device 4 (represented 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, the indication is "1", indicating that terminal device 1 and terminal device 4 need to monitor PDCCH at the first PO position, and after decoding the paging DCI, decode PDSCH (paging message) according to the scheduling information indicated by the paging DCI. Terminal device 2 (represented as UE2 in the figure) and terminal device 3 (represented 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, the indication is "0", indicating that terminal device 2 and terminal device 3 do not need to monitor PDCCH at the first PO position.

[0138] In addition, the terminal device under the low power wake up signal (LP-WUS) configuration adopts the main and auxiliary receiving link combination mode (such as Figure 5 The main link is in the ultra-deep sleep state before being awakened by the low-power wake-up signal (LP-WUS).

[0139] Since LP-WUS can also be designed into subgroup granularity to reduce false alarms, how to combine LP-WUS with the PEI mechanism to monitor PO is a technical problem that needs to be solved urgently.

[0140] In order to solve the above technical problems, the embodiment of the present application provides a communication method and a related device, first receiving a first wake-up signal through a first receiver with a lower working power, and then receiving a second wake-up signal through a second receiver with a higher working power, and then monitoring 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 wake-up terminal, and then the second paging group indicates the monitoring of the paging message, so as to realize the monitoring of the paging message in a double-layer grouping manner. 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 the finer granularity 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. The following will be further explained in conjunction with the accompanying drawings.

[0141] See also Figure 6 , 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 may be performed by a terminal device or a network device, or may be performed by some components in the terminal device or the network device (such as a processor, a chip or a chip system, etc.), or may be implemented by a logic module or software that can implement 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 may also be divided into executions by multiple execution subjects, and these execution subjects may be logically and / or physically separated. For example, the processing performed by the network device may be divided into executions by at least one of the CU, DU and RU.

[0142] Step 601: The network device sends a first wake-up signal to the terminal device.

[0143] 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.

[0144] 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.

[0145] The network device sends a first wake-up signal to the terminal device, and correspondingly, 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.

[0146] The above can also be understood as the first indication information is used to indicate which groups of terminals are awakened, or the first indication information is used to indicate which groups of terminals need to monitor PEI. The first receiver receives the first wake-up signal by detection. 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. Thus, data is sent and received according to the second receiver with higher working power. The second receiver is in ultra-deep sleep before awakening.

[0147] Exemplarily, the group whose identification bit is "1" in the first indication information indicates that the terminal device belonging to the group needs to be awakened. The group whose identification bit is "0" in the first indication information indicates that the terminal device belonging to the group does not need to be awakened. Or it can be understood that the first receiver needs to determine whether the group whose identification bit is "1" in the first indication information contains the terminal device to which the first receiver belongs. If it does, wake up the second receiver to listen to PEI. If it does not, the second receiver can continue to maintain a sleep state.

[0148] 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 subgroup ID of the UE. Otherwise, the UE_ID-based grouping method is adopted.

[0149] Optionally, the calculation method of the first indication information is as shown in Formula 4:

[0150] Formula 4:

[0151] 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, and N s Indicates the number of paging occasions 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.

[0152] 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 takes the value of 32768; in other cases, X takes the value of 8192.

[0153] In addition, the truncated part of the 5G-S-TMSI is used for the UEID of the terminal configured with LP-WUS, that is, the network side can allocate a shorter UEID that is unique within the AMF to the LP-WUS. For example, the 5G-S-TMSI appears in the form of 16+16+16 bits. For energy saving and low complexity, the LP-WUS terminal may only intercept 16 or 32 bits for the terminal UEID under the LP-WUS configuration. In actual applications, the value of TMSI can also be set according to actual needs, and the specific value is not limited here.

[0154] Optionally, the first wake-up information is LP-WUS. Accordingly, the first terminal group may also be referred to as an LP-WUS group, SubgroupID2 may also be referred to as grouping information based on LP-WUS, and 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 with the LP-WUS of the sub-group granularity.

[0155] It is understandable that the above formula 4 is only an example, and in practical applications, the first indication information may be calculated in other forms, for example, by replacing rounding down with rounding up or rounding off, etc. The specifics are not limited here.

[0156] Step 602: The network device sends a second wake-up signal to the terminal device.

[0157] 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.

[0158] The above can also be understood as the second wake-up signal is used to indicate which grouped terminals need to monitor paging messages. If the second terminal group includes the 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 where the terminal device is located is in the second terminal group), the paging message is subsequently monitored.

[0159] Optionally, the second wake-up information is PEI.

[0160] 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.

[0161] For example, the double-layer grouping example is as follows: Figure 7 As shown, the LP-WUS group corresponds to the first terminal group, and the PEI group corresponds to the second terminal group. Figure 7 In the example of , the number of LP-WUS groups is 3, and the number of subgroups (i.e., PEI groups) included in each LP-WUS group is 3. It can be understood that Figure 7 The number of LP-WUS groups and the number of PEI groups are only examples. In practical applications, the number of LP-WUS groups and the number of PEI groups can be more or less, which is not limited here.

[0162] There are multiple ways of the second wake-up signal in the embodiment of the present application, which are described below respectively:

[0163] First, the second wake-up signal includes second indication information.

[0164] In this case, the second terminal group includes the third terminal group, and the second indication information in the second wake-up signal is used to indicate that the third terminal group receives the paging message. The devices in the third terminal group support the UE_ID grouping mode.

[0165] 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.

[0166] Optionally, if the second terminal group is a subgroup of the first terminal group, in this case, the third terminal group in the second terminal group is a subgroup of the first terminal group.

[0167] In addition, there are multiple ways to carry the second indication information in the present application. It can be carried in DCI (for example, DCI format 2_7), or in newly defined information or other information, which is not specifically limited here.

[0168] Optionally, the second indication information is located in a first field of the DCI, and the DCI also includes a second field, and 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 support the UE_ID grouping mode. Further, the first field is a reserved field of the DCI, and the second field is a paging indication field (pagingindication field).

[0169] Optionally, the second indication information is calculated as shown in Formula 5:

[0170] Formula 5:

[0171] 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 Indicates the number of paging occasions in a paging frame, G 1 Indicates the number of groups of the first terminal group within a paging occasion, G 2 Indicates the number of groups of the third terminal group within one paging occasion.

[0172] Formula 5 can also be understood as dividing by the group number used in the first layer.

[0173] Optionally, G 1 The parameters can be added to the broadcast message to broadcast to the terminal device, or the terminal device can be informed by the configuration or pre-configuration mentioned in the above explanation. 2 The parameter (subgroupsNumForUEID) in the broadcast message can be reused to broadcast to the terminal device. 1 It can also be called G_LP-WUS, G 2 It can also be called G_PEI.

[0174] For example, G 1 For example, by adding parameters in the broadcast message to the terminal device, subgroupsNumPerPOofLPWUS can be added in the system information block (SIB) 1 to indicate G 1 .

[0175] It can be understood that the above formula 5 is only an example. In practical applications, the first indication information can also be calculated in other forms, for example, replacing the rounding down with the rounding up or rounding off, etc. For example, G 1 and / or G 2 The position adjustment in Formula 5, etc. is not limited here.

[0176] The second type is that the second wake-up signal includes third indication information.

[0177] 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 indicate that the fourth terminal group receives a paging message. The devices in the fourth terminal group support a UE_ID grouping mode or a CN grouping mode.

[0178] The third indication information mentioned above can be understood as an existing PEI (which can be called the first PEI) mechanism, that is, the communication method provided by the present application can be compatible with the existing PEI mechanism.

[0179] Exemplarily, the third indication information is a legacy PEI CN paging indication field.

[0180] The third type is that the second wake-up signal includes the second indication information and the third indication information.

[0181] 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 indicate that the third terminal group receives a paging message. The third indication information in the second wake-up signal is used to indicate that the fourth terminal group receives 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.

[0182] 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.

[0183] Further, in order to reduce unnecessary DCI overhead, the second indication information and the third indication information can 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 support UE_IE grouping.

[0184] For example, continuing the above Figure 4a For example, the above DCI can be as follows Figure 8 As shown, the first field mentioned above is a reserved field of DCI (ie, indicating SubgroupID2), and the second field is a PO indication field in DCI.

[0185] Optionally, 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. Figure 8M in PO0 in the PO indication field is 8, and Subgroup0 and Subgroup1 are CN grouping modes, and the remaining six groups (ie, Subgroup2 to Subgroup7) are UE_ID grouping modes. Then X in SubgroupID2 is indicated to be 6, that is, SubgroupID2 is for the third terminal group supporting the UE_ID grouping mode.

[0186] It can be understood that the above-mentioned second wake-up signal is only an example. In practical applications, the second wake-up signal can be set according to actual needs, and the specifics are not limited here.

[0187] It can be seen that the newly designed second PEI grouping indication monitored by LP-WUS does not affect the legacy PEI monitored by the traditional NR terminal, and the compatibility of LP-WUS terminal and traditional NR terminal monitoring PEI is successfully achieved.

[0188] Step 603: The terminal device receives a paging message based on the second wake-up signal.

[0189] After receiving the second wake-up signal, the terminal device receives a paging message based on the second wake-up signal.

[0190] 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 terminal devices (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.

[0191] Corresponding to various situations of the second wake-up signal, this step corresponds to various situations, which are described below respectively:

[0192] First, the second wake-up signal includes second indication information.

[0193] In this case, the second terminal group includes the third terminal group, and the second indication information in the second wake-up signal is used to indicate that the third terminal group receives the paging message. The devices in the third terminal group support the UE_ID grouping mode.

[0194] 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, the terminal device monitors the paging message.

[0195] The second type is that the second wake-up signal includes third indication information.

[0196] 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 indicate that the fourth terminal group receives a paging message. The devices in the fourth terminal group support a UE_ID grouping mode or a CN grouping mode.

[0197] 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, the terminal device monitors the paging message.

[0198] The third type is that the second wake-up signal includes the second indication information and the third indication information.

[0199] 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 indicate that the third terminal group receives a paging message. The third indication information in the second wake-up signal is used to indicate that the fourth terminal group receives 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.

[0200] 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:

[0201] 1. The priority of CN group is higher than that of UE_ID group.

[0202] This situation can also be understood as, if the device in the fourth terminal group supports CN grouping, and the terminal group to which the terminal device belongs belongs to the fourth terminal group, 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, the paging message is monitored.

[0203] For example, continuing the above Figure 8 For example, Figure 8 The Subgroup0 and Subgroup1 in PO0 in the PO indication field are CN grouping methods. In this case, the terminal device only needs to monitor the Subgroup0 and Subgroup1 in the PO indication field.

[0204] 2. When monitoring PEI, terminals under the LP-WUS configuration are required to monitor the second PEI grouping identifier based on the UEID double-layer grouping formula (ie, the second wake-up information includes the second indication information).

[0205] This situation can also be understood as that the terminal device receives the paging message based on the second wake-up signal includes: the terminal device receives 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, the paging message is monitored.

[0206] For example, continuing the above Figure 8 For example, X=6. In this case, the terminal device only needs to monitor Subgroup0 to Subgroup5 in SubgroupID2.

[0207] 3. The CN group representation and the second PEI group identification based on the UEID double-layer grouping formula are combined for monitoring.

[0208] 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.

[0209] 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.

[0210] Based on the above technical solution, the terminal device first receives the first wake-up signal through the first receiver with lower working power, and then receives the second wake-up signal through the 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 combination of low-power wake-up signal and paging advance indication is provided. On the other hand, the terminal to be paged can be indicated in a finer granularity to reduce the probability of the terminal being paged, and the use of the finer granularity 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.

[0211] in addition, Figure 6 The embodiment shown can also be understood as Fig. 9 The process diagram shown is Fig. 9It 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 implement 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.

[0212] Step 901: The network device sends a first wake-up signal to the terminal device.

[0213] 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.

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

[0215] Step 902: The first receiver of the terminal device wakes up the second receiver.

[0216] In the case where 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 instruct the first receiver to wake up the second receiver, the first receiver of the terminal device wakes up the second receiver.

[0217] 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.

[0218] Step 903: The network device sends a second wake-up signal to the terminal device.

[0219] 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.

[0220] Optionally, the second wake-up signal is configured to be received by the second receiver.

[0221] For the detailed description of this step, please refer to the previous Figure 6 The details of step 602 in the illustrated embodiment will not be repeated here.

[0222] Step 904: The terminal device receives a paging message based on the second wake-up signal.

[0223] For the detailed description of this step, please refer to the previous Figure 6 The details of step 603 in the illustrated embodiment will not be repeated here.

[0224] Step 905: The terminal device performs random access and other processing based on the paging message.

[0225] After the terminal device monitors the paging message, it can perform random access and other processing procedures.

[0226] based on Fig. 9 The technical solution is, on the one hand, to design a second PEI grouping indication formula applicable to the LP-WUS terminal (determined by the LP-WUS grouping information and the PEI grouping information), so as to realize the double-layer grouping of LP-WUS and PEI to further reduce paging false alarms and effectively reduce the energy loss of unnecessary monitoring of paging. On the other hand, the second PEI grouping 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 grouping indication and the existing PEI grouping is given, and the priority of the specific use of the monitoring second PEI grouping indication and the legacy PEI grouping indication is stipulated. The newly designed second PEI grouping 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.

[0227] The present application is introduced above from the perspective of the method, and the communication device provided by the present application will be described below.

[0228] See also Fig.10 , the embodiment of the present application provides a communication device 1000, which can implement the functions of the terminal device in the above method embodiment, and thus can also achieve the beneficial effects of the above method embodiment. In the embodiment of the present application, the communication device 1000 can be a terminal device, or an integrated circuit or component inside the terminal device, such as a chip. The following embodiments are described by taking the communication device 1000 as a terminal device as an example.

[0229] 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 includes first indication information, the first indication information is used to indicate that a first terminal group is awakened, and the first terminal group includes terminal devices. The second transceiver unit 1002 receives a second wake-up signal, the second wake-up signal is used to indicate that a second terminal group receives a paging message, and the second terminal group includes terminal devices. The second transceiver unit 1002 then receives a paging message based on the second wake-up signal.

[0230] Optionally, the device 1000 may further include a processing unit, which 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.

[0231] Of course, multiple transceiver units may be equipped with one processing unit, or one transceiver unit may be equipped with one processing unit, and there is no limitation on the number of processing units.

[0232] See also Fig.11 , the embodiment of the present application provides a communication device 1100, which can implement the functions of the network device in the above method embodiment, and thus can also achieve the beneficial effects of the above method embodiment. In the embodiment of the present application, the communication device 1100 can be a network device, or an integrated circuit or component inside the network device, such as a chip. The following embodiments are described by taking the communication device 1000 as a network device as an example.

[0233] 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 a 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 working power of the first receiver is less than the working power of the 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 terminal equipment, and the terminal equipment includes a first receiver and a second receiver.

[0234] Optionally, in practical applications, the communication device 1100 may further include a processing unit 1102 to assist the transceiver unit 1101 in sending the first wake-up signal and the second wake-up signal.

[0235] See also Fig.12 , is another schematic structural diagram of the communication device 1200 provided in the present application, and 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.

[0236] Optionally, the communication device also includes a logic circuit 1201.

[0237] in, Fig.10 The first transceiver unit 1001 and the second transceiver unit 1002 are shown Fig.11 The transceiver unit 1101 shown may be a communication interface, which may be Fig.12The input / output interface 1202 in the communication interface may include an input interface and an output interface. Alternatively, the communication interface may also be a transceiver circuit, which may include an input interface circuit and an output interface circuit.

[0238] 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 of the 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 receives a paging message based on the second wake-up signal.

[0239] Optionally, when the communication device 1200 is the network device (or a 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.

[0240] 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.

[0241] See also Fig.13 , is a communication device 1300 involved in the above embodiment provided in an embodiment of the present application, and the communication device 1300 may specifically be a communication device as a terminal device in the above embodiment, Fig.13 The example shown is implemented by a terminal device (or a component in the terminal device).

[0242] Among them, a possible logical structure diagram of the communication device 1300 is shown, and the communication device 1300 may include but is not limited to at least one processor 1301 and a communication port 1302.

[0243] 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 .

[0244] 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.

[0245] Processor 1301 may be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It may implement or execute 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 a computing function, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and the like. Those skilled in the art may clearly understand that, for the convenience and simplicity of description, the specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0246] It should be noted that Fig.13 The communication device 1300 shown 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. Fig.13 The specific implementation methods of the communication device shown can all refer to the description in the aforementioned method embodiment, and will not be described in detail here.

[0247] See also Fig.14 , is a schematic diagram of the structure of a communication device 1400 involved in the above embodiment provided in an embodiment of the present application. The communication device 1400 may specifically be a communication device as a network device in the above embodiment. Fig.14 The example shown is that the network device is implemented by the network device (or a component in the network device), wherein the structure of the communication device can refer to Fig.14 The structure shown.

[0248] 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, through 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.

[0249] The processor 1411 is mainly used to process the communication protocol and communication data, and to control the entire communication device, execute the software program, and process the data of the software program, for example, to support the communication device to perform the actions described in the embodiment. The communication device may include a baseband processor and a central processing unit. The baseband processor is mainly used to process the communication protocol and communication data, and the central processing unit is mainly used to control the entire terminal device, execute the software program, and process the data of the software program. Fig.14 The processor 1411 in the embodiment can integrate the functions of the baseband processor and the central processor. It can be understood by those skilled in the art that the baseband processor and the central processor can also be independent processors, which are interconnected through technologies such as buses. It can be understood by those skilled in the art that the terminal device can include multiple baseband processors to adapt to different network formats, and the terminal device can include multiple central processors to enhance its processing capabilities. The various components of the terminal device can be connected through various buses. The baseband processor can also be described as a baseband processing circuit or a baseband processing chip. The central processor can also be described as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data can be built into the processor, or it can be stored in the memory in the form of a software program, and the processor executes the software program to realize the baseband processing function.

[0250] The memory is mainly used to store software programs and data. The memory 1412 can be independent and connected to the processor 1411. Optionally, the memory 1412 can be integrated with the processor 1411, for example, integrated into a chip. Among them, the memory 1412 can store program codes for executing the technical solutions of the embodiments of the present application, and the execution is controlled by the processor 1411. The various types of computer program codes executed can also be regarded as drivers of the processor 1411.

[0251] Fig.14 Only one memory and one processor are shown. 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, etc. 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 embodiments of the present application.

[0252] The transceiver 1413 can be used to support the reception or transmission of radio frequency signals between the communication device and the terminal, and 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, and the receiver Rx of the transceiver 1413 is used to receive the radio frequency signal from the antenna, and convert the radio frequency signal into a digital baseband signal or a digital intermediate frequency signal, and provide the digital baseband signal or the digital intermediate frequency signal to the processor 1411, so that the processor 1411 further processes the digital baseband signal or the 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 a digital intermediate frequency signal from the processor 1411, and convert the modulated digital baseband signal or the digital intermediate frequency signal into a radio frequency signal, and send 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 processing on the RF signal to obtain a digital baseband signal or a digital intermediate frequency signal, and the order of the down-mixing and analog-to-digital conversion processing is adjustable. The transmitter Tx can selectively perform one or more stages of up-mixing and digital-to-analog conversion processing on the modulated digital baseband signal or digital intermediate frequency signal to obtain a RF signal, and the order of the up-mixing and digital-to-analog conversion processing is adjustable. The digital baseband signal and the digital intermediate frequency signal can be collectively referred to as a digital signal.

[0253] 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 for implementing a receiving function may be regarded as a receiving unit, and a device in the transceiver unit for implementing a sending function may be regarded as a sending unit, that is, the transceiver unit includes a receiving unit and a sending unit, the receiving unit may also be referred to as a receiver, an input port, a receiving circuit, etc., and the sending unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0254] It should be noted that Fig.14 The communication device 1400 shown can be specifically used to implement the steps implemented by the network device in the aforementioned method embodiment, and achieve the corresponding technical effects of the network device. Fig.14 The specific implementation methods of the communication device 1400 shown can all refer to the description in the aforementioned method embodiment, and will not be described in detail here.

[0255] 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.

[0256] 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 network device in the aforementioned embodiment.

[0257] An embodiment of the present application also provides a computer program product (or computer program) storing one or more computers. When the computer program product is executed by the processor, the processor executes the method of the possible implementation mode of the above-mentioned terminal device.

[0258] 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.

[0259] The 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 for 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 chips, and may also include chips and other discrete devices, wherein the communication device can specifically be a terminal device in the aforementioned method embodiment.

[0260] The 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 for 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 chips, and may also include chips and other discrete devices, wherein the communication device can specifically be a network device in the aforementioned method embodiment.

[0261] An embodiment of the present application also provides a communication system, which includes the terminal device and the network device in any of the above embodiments.

[0262] In the several embodiments provided in the present 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 only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, 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.

[0263] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0264] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0265] 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 to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), disk or optical disk and other media that can store program code.

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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