Communication methods, apparatuses, and systems

Abstract

The application provides a communication method, device and system, and relates to the technical field of communication. The method comprises the following steps: determining a plurality of SSBs according to first information, wherein the first information is used for indicating SSB information; and obtaining second information according to the first information, wherein the second information is used for indicating DTX and / or DRX information corresponding to the plurality of SSBs. In the technical scheme of the application, a terminal device can obtain a plurality of SSBs and further obtain DTX and / or DRX information corresponding to the SSBs, so that the communication demand of the terminal device can be met, and the accuracy of terminal device activation is improved.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly to a communication method, apparatus, and system. Background Technology

[0002] In a communication system, network devices can send information to terminal devices, such as synchronization signals and physical broadcast channel blocks (SSBs). Terminal devices can perform discontinuous transmission (DTX) and / or discontinuous reception (DRX). For example, an SSB corresponds to paging information. The terminal device can monitor paging information during the active period indicated by the DRX, but not during the inactive period indicated by the DRX.

[0003] As the number of Service Blocks (SSBs) in communication systems increases—for example, a single cell in a non-terrestrial network (NTN) may have hundreds or even thousands of SSBs—the methods described above may no longer meet the information transmission needs of terminal devices, and the terminal devices may not be able to activate accurately. Summary of the Invention

[0004] This application provides a communication method, apparatus, and system to meet the information transmission needs of different terminal devices and improve the accuracy of terminal device activation.

[0005] In a first aspect, a communication method is provided, which can be applied to a first device, the first device being a terminal device or a module (such as a chip) in the terminal device, or software (such as a control subsystem) containing terminal device functions. The method includes: determining a plurality of SSBs based on first information, the first information being used to indicate SSB information; and obtaining second information based on the first information, the second information being used to indicate DTX and / or DRX information corresponding to the plurality of SSBs.

[0006] In this way, the terminal device can obtain DTX and / or DRX information corresponding to multiple SSBs, and thus activate the device during the activation period indicated by the DTX and / or DRX information corresponding to the multiple SSBs, thereby meeting the communication needs of the terminal device and improving the accuracy of the terminal device activation.

[0007] In conjunction with the first aspect, in one possible implementation of the first aspect, the multiple SSBs include a first SSB and N second SSBs, wherein the first SSB is the optimal SSB maintained by the first device, the N second SSBs are the N SSBs of the target cell other than the first SSB, the target cell is the cell where the first device is located, and N is an integer greater than 0; the first device can be a terminal device.

[0008] Thus, the second information obtained by the terminal device can be: the optimal SSB it maintains and multiple other SSBs in the cell where the terminal device is located, and the DTX and / or DRX information corresponding to these SSBs.

[0009] In conjunction with the first aspect, in one possible implementation of the first aspect, the communication method further includes: receiving first information from a second device, the first information indicating any one of the following: all or part of the SSB distribution of the target cell; or, M SSB group identifiers, where M is an integer greater than 0, the M SSB group identifiers indicating: the SSB group to which N second SSBs belong, the SSB group being obtained by grouping SSBs in the target cell; or, N spectral identifiers indicating: N second SSBs; or, the indexes of N second SSBs.

[0010] In this way, the terminal device can support one or more forms of information indicating the second SSB.

[0011] In conjunction with the first aspect, in one possible implementation of the first aspect, the first information is also used to indicate: the SSB group identifier to which the first SSB belongs.

[0012] In this way, the terminal device can obtain the SSB group identifier corresponding to the first SSB.

[0013] In conjunction with the first aspect, in one possible implementation of the first aspect, the first information is used to indicate: the index of some or all SSBs of the target cell, the coverage information of some or all SSBs, the arrangement of some or all SSBs, and the location information of the starting SSB.

[0014] In this way, the first information can indicate the distribution of all or part of the SSB of the target cell by indicating the index, coverage information, arrangement method and starting position information.

[0015] In conjunction with the first aspect, in one possible implementation of the first aspect, an SSB group corresponds to a DRX message and / or a DTX message, wherein an SSB group includes at least two SSBs.

[0016] In this way, a correspondence is established between the SSB group and the DRX and / or DTX information, so that the corresponding DRX and / or DTX information can be determined through the information of the SSB group.

[0017] In conjunction with the first aspect, in one possible implementation of the first aspect, the communication method further includes: obtaining third information, the third information being used to indicate: the interval between DRX and / or DTX information corresponding to the first SSB group and the DRX and / or DTX information corresponding to the SSB group, the first SSB group being used to indicate the first SSB group in the SSB group obtained by grouping SSBs in the target cell; obtaining second information based on the first information, including: obtaining the second information based on the first information and the third information.

[0018] In this way, by using the correspondence between the first SSB group and the DRX and / or DTX information, and the interval between the DRX and / or DTX information corresponding to different SSB groups, the DRX and / or DTX information corresponding to multiple SSB groups can be obtained; in addition, the SSB groups corresponding to multiple SSBs can be obtained based on the first information, so that the terminal device can obtain the DRX and / or DTX information corresponding to multiple SSBs.

[0019] In conjunction with the first aspect, in one possible implementation of the first aspect, the second information is used to indicate the DRX and / or DTX information corresponding to the first SSB, and the DRX and / or DTX information of N second SSBs. Obtaining the second information based on the first information and the third information includes: determining the DRX and / or DTX information of the SSB group to which the first SSB belongs based on the index of the first SSB and the index of the initial SSB of the first SSB group, and / or based on the SSB group corresponding to the frame number and the DRX and / or DTX information corresponding to the first SSB group, and obtaining the DRX and / or DTX information corresponding to the first SSB; obtaining the DRX and / or DTX information corresponding to N second SSBs based on the first offset, the interval between the DRX and / or DTX information corresponding to the SSB group, and the DRX and / or DTX information corresponding to the first SSB, wherein the first offset is used to indicate the group number interval between the SSB group to which each of the N second SSBs belongs and the SSB group to which the first SSB belongs.

[0020] In this way, the terminal device can determine the SSB group corresponding to the first SSB based on the SSB index or frame number, and then determine the DRX and / or DTX information corresponding to the first SSB based on the correspondence between the first SSB, the SSB group, and the DRX and / or DTX information. Furthermore, by using the DRX and / or DTX information corresponding to the SSB group, the group number interval between the SSB groups to which the second SSB belongs and the SSB group to which the first SSB belongs, and the interval between the DRX and / or DTX information corresponding to the SSB groups, the terminal device can determine the DRX and / or DTX information corresponding to the second SSB. This results in obtaining the DRX and / or DTX information corresponding to multiple beams.

[0021] In conjunction with the first aspect, in one possible implementation of the first aspect, the DRX and / or DTX information is also used to indicate the wake-up timing and wake-up duration, the wake-up timing indicating the timing of activation of the first device, and the wake-up duration indicating the duration of monitoring of paging messages.

[0022] In this way, the terminal device can be activated by the wake-up timing and wake-up duration indicated by DRX and / or DTX information, and paging messages can be monitored during the activation period.

[0023] In conjunction with the first aspect, in one possible implementation of the first aspect, the communication method further includes: when the optimal SSB maintained by the first device is switched to the third SSB, determining the fourth SSB based on the first information, or receiving the fourth information and determining the fourth SSB based on the fourth information, wherein the fourth information is used to indicate multiple SSBs other than the third SSB in the target cell, and the fourth information is used to indicate SSB information; and determining the DRX and / or DTX information corresponding to the third SSB and the fourth SSB respectively.

[0024] In this way, if the optimal SSB maintained by the terminal device changes, the terminal device can promptly update the first SSB to the third SSB and the second SSB to the fourth SSB, thereby obtaining the updated DRX and / or DTX information in a timely manner.

[0025] In a second aspect, a communication method is provided, which can be applied to a second device, which may be a network device or a module (such as a chip) in a network device, or software containing network device functions. The method includes: sending first information, which is used to determine multiple synchronization signals and physical broadcast channel blocks (SSBs), and the first information is used to indicate SSB information; the first information is also used to acquire second information, which is used to indicate discontinuous transmission of DTX and / or discontinuous reception of DRX information corresponding to the multiple SSBs.

[0026] In conjunction with the second aspect, in one possible implementation of the second aspect, the multiple SSBs include a first SSB and N second SSBs. The first SSB is the optimal SSB maintained by the first device, and the N second SSBs are the N SSBs in the target cell other than the first SSB. The target cell is the cell where the first device is located, and N is an integer greater than 0.

[0027] In conjunction with the second aspect, in one possible implementation of the second aspect, the first information is used to indicate any of the following: the distribution of all or part of the SSBs in the target cell; or, M SSB group identifiers, where M is an integer greater than 0, the M SSB group identifiers are used to indicate: the SSB group to which the N second SSBs belong, the SSB group is obtained by grouping the SSBs in the target cell; or, N spectral identifiers, the N spectral identifiers are used to indicate: the N second SSBs; or, the indexes of the N second SSBs.

[0028] In conjunction with the second aspect, in one possible implementation of the second aspect, the first information is also used to indicate: the SSB group identifier to which the first SSB belongs.

[0029] In conjunction with the second aspect, in one possible implementation of the second aspect, the first information is used to indicate: the index of some or all SSBs of the target cell, the coverage information of some or all SSBs, the arrangement of some or all SSBs, and the location information of the starting SSB.

[0030] In conjunction with the second aspect, in one possible implementation of the second aspect, an SSB group corresponds to a DRX message and / or a DTX message, wherein an SSB group includes at least two SSBs.

[0031] In conjunction with the second aspect, in one possible implementation of the second aspect, the communication method further includes: sending third information, the third information being used to indicate: the interval between the DRX and / or DTX information corresponding to the first SSB group and the DRX and / or DTX information corresponding to the SSB group, the first SSB group being used to indicate the first SSB group among the SSB groups obtained by packetizing SSBs in the target cell.

[0032] In conjunction with the second aspect, in one possible implementation of the second aspect, the second information is used to indicate the DRX and / or DTX information corresponding to the first SSB, and the DRX and / or DTX information of N second SSBs, and the second information is obtained based on the first information and the third information;

[0033] The DRX and / or DTX information corresponding to the first SSB is the DRX and / or DTX information of the SSB group to which the first SSB belongs. The DRX and / or DTX information of the SSB group to which the first SSB belongs is obtained based on at least one of the following: the index of the first SSB and the index of the starting SSB of the first SSB group, and / or, the SSB group corresponding to the frame number and the DRX and / or DTX information corresponding to the first SSB group; the DRX and / or DTX information corresponding to the N second SSBs is obtained based on multiple of the following: a first offset, the interval between the DRX and / or DTX information corresponding to the SSB groups, and the DRX and / or DTX information corresponding to the first SSB. The first offset is used to indicate the number of groups between the SSB groups to which the N second SSBs belong and the SSB group to which the first SSB belongs.

[0034] In conjunction with the second aspect, in one possible implementation of the second aspect, DRX and / or DTX information are also used to indicate the wake-up timing and wake-up duration, the wake-up timing indicating the timing of activation of the first device, and the wake-up duration indicating the duration of monitoring of paging messages.

[0035] In conjunction with the second aspect, in one possible implementation of the second aspect, the communication method further includes:

[0036] Receive SSB update information from the first device, the SSB update information is used to indicate that the optimal SSB maintained by the first device is updated to the third SSB; send fourth information, the fourth information is used to determine the fourth SSB, the fourth information is used to indicate multiple SSBs other than the third SSB in the target cell, the fourth information is used to indicate SSB information; determine the DRX and / or DTX information corresponding to the third SSB and the fourth SSB respectively.

[0037] Thirdly, a communication device is provided. In one design, the device may include modules corresponding to the methods / operations / steps / actions described in the first aspect or any embodiment of the first aspect. These modules may be hardware circuits, software, or a combination of hardware circuits and software. In one design, the device includes a processing unit configured to determine a plurality of SSBs based on first information and to acquire second information based on the first information. Optionally, the processing unit may be a transceiver unit.

[0038] Fourthly, a communication device is provided. In one design, the device may include modules corresponding to the methods / operations / steps / actions described in the second aspect or any of the embodiments of the second aspect. These modules may be hardware circuits, software, or a combination of hardware circuits and software. In one design, the device includes a transceiver unit for transmitting first information, which is used to determine a plurality of synchronization signals and physical broadcast channel blocks (SSBs). The first information is used to indicate SSB information. Optionally, the transceiver unit may be a processing unit.

[0039] Fifthly, a communication device is provided, including a processor. The processor can implement the methods of the first to second aspects and any possible implementations thereof. Optionally, the communication device further includes a memory, and the processor is coupled to the memory and can be used to execute instructions in the memory to implement the methods of the first to second aspects and any possible implementations thereof. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface. In the embodiments of this application, the communication interface may be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interface, and is not limited thereto.

[0040] In one implementation, the communication device is a communication equipment (such as a terminal device or a network device). When the communication device is a communication equipment, the communication interface can be a transceiver, or an input / output interface.

[0041] In another implementation, the communication device is a chip configured within a communication device. When the communication device is a chip configured within a communication device, the communication interface can be an input / output interface.

[0042] Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0043] A sixth aspect provides a processor, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive signals through the input circuit and transmit signals through the output circuit, causing the processor to execute the methods described in the first to second aspects and any possible implementation thereof.

[0044] In specific implementation, the processor can be one or more chips, the input circuit can be input pins, the output circuit can be output pins, and the processing circuit can be transistors, gate circuits, flip-flops, and various logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to and transmitted by a transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as both the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0045] In a seventh aspect, a computer-readable storage medium is provided that stores a computer program (also referred to as code or instructions) that, when executed on a computer, causes the computer to perform the methods described in the first to second aspects and any possible implementation thereof.

[0046] Eighthly, a computer program product is provided, comprising: a computer program (also referred to as code or instructions) that, when run, causes a computer to perform the methods described in the first to second aspects and any possible implementation thereof.

[0047] A ninth aspect provides a chip system applied to an electronic device, the chip system including one or more processors, the one or more processors being configured to invoke computer instructions to cause the electronic device to perform the methods of the first to second aspects and any possible implementation thereof.

[0048] In a tenth aspect, a communication system is provided, including a first communication device and a second communication device. The first communication device may also be referred to as a first device, and is used to execute the method in any possible implementation of the first aspect. The second communication device may also be referred to as a second device, and is used to execute the method in any possible implementation of the second aspect.

[0049] It should be understood that the beneficial effects of the features corresponding to the first aspect in the second to tenth aspects can be referred to the relevant description of the first aspect above, and will not be repeated here. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0051] Figure 2 This is a schematic diagram of the architecture of another communication system provided in an embodiment of this application;

[0052] Figure 3This is a schematic diagram of an SSB transmission mechanism provided in an embodiment of this application;

[0053] Figure 4 This is a schematic diagram of an SSB distribution provided in an embodiment of this application;

[0054] Figure 5 This is a schematic diagram illustrating the correspondence between wave position and SSB provided in an embodiment of this application;

[0055] Figure 6 This is a schematic diagram of a communication method provided in an embodiment of this application;

[0056] Figure 7 This is a schematic diagram illustrating an arrangement of SSB patterns provided in an embodiment of this application;

[0057] Figure 8 This is a schematic diagram of the SSB distribution of an extended SSB index provided in an embodiment of this application;

[0058] Figure 9 This is a schematic diagram of the SSB distribution of a constraint-type SSB index provided in an embodiment of this application;

[0059] Figure 10 This is a schematic diagram of a DTX / DRX pattern provided in an embodiment of this application;

[0060] Figure 11 This is a schematic diagram of an on-duration method provided in an embodiment of this application;

[0061] Figure 12 This is a schematic diagram illustrating the correspondence between SSB groups and system frame numbers and DTX and / or DRX information provided in an embodiment of this application.

[0062] Figure 13 A schematic diagram illustrating a specific implementation of the communication method provided in this application embodiment;

[0063] Figure 14 A schematic diagram illustrating another specific implementation of the communication method provided in this application embodiment;

[0064] Figure 15 A schematic diagram of a beam-level SSB pattern provided in an embodiment of this application;

[0065] Figure 16 A schematic diagram illustrating yet another specific implementation of the communication method provided in this application embodiment;

[0066] Figure 17 A schematic diagram illustrating another specific implementation of the communication method provided in this application embodiment;

[0067] Figure 18 A schematic diagram of a communication device provided in an embodiment of this application;

[0068] Figure 19 This is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0069] To facilitate understanding of the embodiments of this application, the following points will be explained first:

[0070] In the embodiments of this application, "instruction" may include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information for indicating A, it can be understood that the instruction information carries A, directly indicates A, or indirectly indicates A.

[0071] In the embodiments of this application, " / " can indicate that the objects before and after are in an "or" relationship. For example, A / B can mean A or B. "And / or" can be used to describe three relationships between the associated objects. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural.

[0072] In the embodiments of this application, "at least one" refers to one or more, and "more than one" refers to two or more, such as three, four or more. Similar expressions (such as at least one, at least one, etc.) are used in the same way. "At least one of the following," "one or more of the following," or similar expressions refer to any combination of these items, which may include only a single item or a combination of multiple items. For example, at least one of a, b, or c can represent: a, or b, or c; a and b; or a and c; or b and c; or a, b, and c. Where a, b, and c can be single or multiple.

[0073] To facilitate the description of the technical solutions of the embodiments of this application, the terms "first" and "second" may be used for distinction in the embodiments of this application. The terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0074] In the embodiments of this application, the words "exemplary," "example," or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary," "example," or "for example" should not be construed as being more preferred or advantageous than other embodiments or designs. The use of the words "exemplary," "example," or "for example" is intended to present the relevant concepts in a specific manner to facilitate understanding.

[0075] In the embodiments of this application, "sending information / data" or "receiving information / data" only indicates the direction of information / data transmission. "Sending information / data" includes direct transmission via the device's communication interface (such as an air interface, etc.). "Sending" can also be understood as the "output" of the module interface. "Sending" can include indirect transmission by the processing unit through the communication interface; that is, after the processing unit outputs information / data through the module interface, it is transmitted to the device's communication interface and then sent out. "Receiving information / data" includes direct reception via the communication interface. "Receiving" can also be understood as the "input" of the module interface. "Receiving information / data" can include indirect reception by the processing unit through the communication interface; that is, after the communication interface receives information / data, it is transmitted to the module interface of the processing unit and then input to the processing unit. "Sending information / data to… (e.g., a terminal)" can be understood as the destination of the information being the terminal. It can include sending information / data directly or indirectly to the terminal. "Receiving information / data from… (e.g., a terminal)" can be understood as the source of the information being the terminal, and can include receiving information / data directly or indirectly from the terminal. Information / data may undergo necessary processing, such as format changes, between the source and destination, but the destination can understand the valid information / data from the source. Similar statements in this application can be understood in a similar way, and will not be repeated here.

[0076] The technical solutions of this application can be applied to various communication systems, including terrestrial communication systems, NTN communication systems (e.g., satellite communication systems), or future communication systems. For example, Long Term Evolution (LTE) systems, 5th Generation (5G) communication systems, Wireless Fidelity (WiFi) systems, satellite communication systems, and the solutions provided in this application can also be applied to future communication systems or other communication systems. This application does not limit these applications.

[0077] Figure 1 This is a schematic diagram of the architecture of a communication system applicable to the communication method provided in this application. Figure 1 A schematic diagram of a possible, non-limiting system architecture is shown. (e.g.) Figure 1 As shown, the communication system includes a radio access network (RAN) 10 and a core network (CN) 20. Optionally, the communication system also includes an Internet 30. RAN 10 includes at least one RAN node (e.g., Figure 1 110a and 110b (collectively referred to as 110) and at least one terminal (such as Figure 1RAN 10, denoted as RAN 10 (120a-120j), may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices. Figure 1 (Not shown in the image). Terminal 120 is connected to RAN node 110 wirelessly. RAN node 110 is connected to core network 20 wirelessly or via wired connection. The core network equipment in core network 20 and RAN node 110 in RAN 10 can be different physical devices, or they can be the same physical device integrating core network logical functions and radio access network logical functions.

[0078] RAN 10 can be a cellular system related to the 3rd Generation Partnership Project (3GPP), such as 4G, 5G mobile communication systems, or future-oriented evolution systems. RAN 10 can also be an open access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (Wi-Fi) system. RAN 10 can also be a communication system that integrates two or more of the above systems.

[0079] RAN node 110, sometimes also referred to as access network equipment, RAN entity, or access node, is part of the communication system and is used to help terminals achieve wireless access. Multiple RAN nodes 110 in communication system 100 can be of the same type or different types. In some scenarios, the roles of RAN node 110 and terminal 120 are relative, for example... Figure 1 Network element 120i can be a helicopter or a drone, and it can be configured as a mobile base station. For terminals 120j that access RAN 10 through network element 120i, network element 120i is a base station; however, for base station 110a, network element 120i is a terminal. RAN node 110 and terminal 120 are sometimes referred to as communication devices, for example... Figure 1 Network elements 110a and 110b can be understood as communication devices with base station functions, while network elements 120a-120j can be understood as communication devices with terminal functions.

[0080] In one possible scenario, a RAN node can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), a next-generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. A RAN node can also be a macro base station (such as...) Figure 1 110a), micro base stations or indoor stations (such as Figure 1 In CRAN scenarios, RAN nodes can be 110b), relay nodes or donor nodes, or wireless controllers. Optionally, RAN nodes can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, in vehicle-to-everything (V2X) technology, the access network equipment can be a roadside unit (RSU).

[0081] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, with different RAN nodes each implementing a portion of the base station's functions. For example, RAN nodes can be central units (CUs), distributed units (DUs), CU-control plane (CPs), CU-user plane (UPs), or radio units (RUs), etc. CUs and DUs can be set up separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio frequency equipment or radio frequency units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0082] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0083] Figure 2 This is a schematic diagram of the architecture of another communication system applicable to the communication method provided in this application. Taking a satellite communication system as an example, the embodiments of this application can be applied to the transparent relay scenario of satellite communication, and also to the regeneration mode scenario of satellite communication. As an example, the following is combined with... Figure 2 illustrate.

[0084] Satellites (such as satellite #1) can provide communication services to terminals. For example, satellites can transmit data with terminal devices, and they can also communicate with ground base stations. Satellites can function as RAN nodes, called satellite base stations. The form of a satellite base station can be seen in [reference needed]. Figure 1 Description of RAN nodes.

[0085] In this application, the satellite can refer to a drone, a hot air balloon, a low-Earth orbit satellite, a medium-Earth orbit satellite, a high-Earth orbit satellite, etc. The satellite can also refer to a non-terrestrial base station or non-terrestrial equipment.

[0086] Transparent forwarding in satellite communication can also be called transparent satellite relay mode, transparent forwarding mode, or transparent forwarding scenario. Satellites in transparent forwarding scenarios can be called bent-pipe satellites, transponder satellites, or repeater satellites. In transparent forwarding scenarios, the satellite acts as a frequency converter, working similarly to a repeater. It receives signals from ground equipment, amplifies and forwards the signal to another ground device without processing or decoding the signal. Ground equipment can be ground-based terminal equipment, base stations, or gateways in non-terrestrial networks (NTNs). Figure 2(Not shown in the image). In some cases, different satellites can connect to the same ground equipment. The NTN gateway has the function of forwarding NR-Uu interface signals. The link between the NTN gateway and the satellite is called the feeder link, and the link between the satellite and the terminal equipment is called the service link. The service link and the feeder link can use non-3GPP protocols, such as Wireless Fidelity (Wi-Fi) or Bluetooth protocols, or they can use 3GPP protocols, such as the 5G NR protocol. When both the service link and the feeder link use 3GPP protocols, in a transparent forwarding scenario, the satellite can copy the NR Uu radio interface signal from the feeder link to the service link, and vice versa. The signal transmitted by the satellite radio interface on the feeder link is the same as the signal transmitted on the NR-Uu interface. That is to say, the satellite does not terminate the NR Uu interface signal, but copies the signal.

[0087] The regenerative mode scenario in satellite communication can also be called regenerative mode or regenerative transmission mode. The satellite in the regenerative mode scenario can be called a regenerative satellite. A regenerative satellite contains access equipment or a data unit (DU). After receiving a signal, it can decode, process, and regenerate the signal before retransmitting it to the target ground equipment.

[0088] In the regeneration mode scenario, the satellite can regenerate signals received from the ground, that is, transmit NR-Uu wireless interface signals on the service link between the terminal equipment and the satellite, and transmit satellite wireless interface signals on the feeder link between the NTN gateway and the satellite.

[0089] The network device in this application embodiment can be any device with RAN node function in a communication system, such as a satellite base station in a satellite communication system.

[0090] A terminal can also be called a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc.

[0091] In the embodiments of this application, the terminal device and the network device can be hardware devices, or software functions running on dedicated hardware, or software functions running on general-purpose hardware, such as virtualization functions instantiated on a platform (e.g., a cloud platform), or entities that include dedicated or general-purpose hardware devices and software functions. This application does not limit the specific form of the terminal device and the network device.

[0092] To better understand the methods provided in the embodiments of this application, the terms involved in this application will be briefly explained below.

[0093] 1. Non-terrestrial communication network (NTN)

[0094] Non-terrestrial communication networks (NTNs) refer to networks that use radio frequency resources on satellite platforms to provide communication services. Satellite platforms can include low Earth orbit (LEO), medium Earth orbit (MEO), high Earth orbit (GEO), unmanned aerial vehicle (UAV) platforms, or high-altitude platform stations (HAPS). Compared to terrestrial cellular networks (such as 5G NR), NTN networks offer wider coverage, higher path loss, greater latency, faster speeds, and lower costs. As a supplement and extension to terrestrial networks, NTNs can achieve wide-area seamless coverage that wired telephone networks and terrestrial mobile communication networks cannot, effectively solving internet access problems in areas with insufficient communication infrastructure.

[0095] 2. Satellite broadcast beam

[0096] Communication systems rely on several broadcast beams in different directions to send SSBs to terminal devices, allowing the terminal devices to synchronize with network equipment during the initial access phase. Here, a beam refers to the main lobe of the directional array pattern. For example, in a terrestrial system, frequency range 1 (FR1) can cover the service area of ​​a single base station with 8 SSBs, or frequency range 2 (FR2) with 64 SSBs corresponding to broadcast beams. Compared to terrestrial systems, NTN systems may require hundreds or even thousands of broadcast beams. For example, an NTN system with an orbital altitude of 600km can provide a service area of ​​hundreds of thousands of square kilometers for a single satellite. To overcome path loss due to transmission distance and ensure communication service quality, satellites generally use large-scale antenna arrays to provide higher array gain, but this also results in a narrower main lobe. For instance, if a single beam has a coverage radius of tens of kilometers and a coverage area of ​​several hundred square kilometers, then thousands of beams are needed to achieve seamless coverage of a single satellite's service area. Furthermore, even with some beam widening, hundreds of beams are still needed to achieve coverage in order to maintain the gain level.

[0097] Sometimes, the beam used to transmit SSB can also be called the SSB beam.

[0098] For example, the network device sends 256 SSBs, such as Figure 3 As shown, the network device sends 8 SSBs within the first 2ms of every 20ms (2 radio frames). A total of 256 SSBs require 64 radio frames to be sent, lasting a total of 640ms. Within each 20ms interval, only the first 2ms contain SSBs; the remaining 18ms can be used to send other data.

[0099] Considering that satellites maintain a specific relative relationship with each other in their orbits, seamless coverage of the entire constellation can be guaranteed when each satellite's coverage area is a rectangle. Taking a rectangular coverage area as an example, the service area of ​​one satellite is evenly divided into 256 regions (cells), with each beam covering one cell and each beam corresponding to one SSB. The distribution of SSBs is as follows: Figure 4 As shown, the area covered by the SSB beam of a satellite on the ground can be called the SSB distribution, SSB pattern, SSB map, SSB coverage pattern, or beam pattern.

[0100] Beam scanning patterns are used to indicate the rules of beam scanning, and may include SSB patterns.

[0101] The coverage area of ​​each SSB beam can be referred to as the beam coverage area, which is indicated by beam coverage area information. The beam coverage area information may include one or more of the following: the scanning order of the spatial coverage areas of multiple beams, the geographical area covered by the spatial coverage areas of multiple beams, the spatial filtering parameters of the spatial coverage areas of multiple beams, and the shape information of the spatial coverage areas of multiple beams.

[0102] Alternatively, the beam coverage information may include one or more of the following: the coverage radius or coverage diameter of the beams in the multiple beams, the center point and / or beam center angle of the beams in the multiple beams, and the coverage angle information of the beams in the multiple beams.

[0103] For example, the beam coverage is a circle, and the beam coverage range information may include one or more of the following: radius R, beam center point location information C(x,y), where x represents longitude and y represents latitude.

[0104] The coverage angle information may include one or more of the following: the beam coverage angle when the beam is projected onto the ground, the beam coverage angle when the beam is projected onto a reference surface at a specific height, and the beam angle or beamwidth angle when the beam is emitted from the network device.

[0105] Alternatively, the beam coverage information may also include parameters related to the beam scanning pattern of multiple beams, wherein the parameters related to the beam scanning pattern may include one or more of the following: shape information of multiple beams, number of long-side beams in the rectangular coverage area of ​​multiple beams, number of short-side beams in the rectangular coverage area, number of beams per circle when the beam scanning pattern is circular, number of beams of square side length when the beam scanning pattern is square, position information of the starting numbered beam, scanning method of multiple beams, and coverage radius or coverage diameter of beams in multiple beams.

[0106] 3. Ground wavefront delineation

[0107] A beamwidth refers to the coverage area of ​​a satellite beam projected onto the ground, or it can be described as the projection range of the beam onto the Earth's surface. By moving or adjusting the weights of the antenna, a satellite can direct its transmitted beam in different directions, corresponding to different coverage areas.

[0108] With the deployment of a large number of satellites, in order to improve the effectiveness and ease of satellite beam management, the ground control center can divide the overall ground coverage area of ​​the satellite into several regions of fixed size. Each region corresponds to a beam position, and all regions are assigned a unique number, which can also be called a beam position ID.

[0109] The size of each region can be set to be the same as the coverage area of ​​the SSB beam, facilitating periodic satellite scanning. Over a period of time, a satellite will cover the same number of ground radii as the SSB beams, thus establishing a one-to-one mapping between the SSB index and the region number (radii ID). The specific location and number of each region, as well as the mapping relationship between the SSB index and the region number, can be pre-set in the satellite and / or terminal equipment, or periodically distributed by the operations control center or core network to one or more of the following: satellite and / or terminal equipment, ground network equipment, or the core network.

[0110] like Figure 5 As shown, exemplarily, the satellite's ground preamplitude distribution includes 1024 preamplitude IDs ranging from 0 to 1023. During a certain time period, the satellite's beam coverage area is the shaded rectangular region within this region, comprising 256 preamplitude IDs. These preamplitude IDs correspond one-to-one with SSB indices. For example, assuming the satellite corresponds to 256 SSB beams with indices from 0 to 255, these 256 SSB beams can correspond one-to-one with 256 regions on the ground. Each corresponding SSB index corresponds to an SSB pattern, which includes SSB0 to SSB255.

[0111] The information of the ground area indicated by the wavefront can be called wavefront coverage information. The description of wavefront coverage information is similar to that of beam coverage information, so it will not be elaborated here.

[0112] 4. Satellite cell

[0113] A satellite cell is the coverage area of ​​a satellite, and the satellite can provide services to terminals within that coverage area.

[0114] As the number of beams increases, the time required for a complete beam scan also increases. Since satellite communication requires hundreds of beams to guarantee coverage, to reduce scan time, the number of beams providing coverage can be increased through a single-satellite multi-cell approach, meaning a satellite's coverage area includes multiple logical cells. For example, if each logical cell requires 8 beams to achieve coverage, then Q logical cells (8 × Q SSBs) providing service can achieve coverage of the entire satellite cell, where × represents a product.

[0115] 5. Discontinuous transmission (DTX) and discontinuous reception (DRX).

[0116] Both DTX and DRX can be understood as energy-saving technologies. To achieve energy saving, DTX, DRX, or both can be configured for terminal devices. The DTX and / or DRX configured on the terminal can also be referred to as DTX and / or DRX mode. For ease of description, the DTX / DRX mode is used to represent DTX and / or DRX mode in the embodiments of this application.

[0117] The basic principle of Discontinuous Transmission (DTX) is to temporarily shut down the transmitter during periods when data transmission is not needed, thereby reducing unnecessary energy consumption. This technique is particularly effective in voice communication because humans have numerous silent intervals during conversations. By shutting down the transmitter during these silent intervals, DTX can significantly reduce the power consumption of mobile devices.

[0118] The Discontinuous Transmission (DTX) mechanism can include parameters such as silence mode, active mode, cycle length, and recovery time. The silence descriptor defines when to enter a silent state, i.e., when the transmitter can be temporarily shut down to conserve energy during voice communication. Conversely, the active mode specifies when the device should resume transmission to ensure data can be sent immediately when needed. Furthermore, the cycle length defines the time interval between data packet transmissions, helping the device decide when to enter or exit DTX mode. To maintain synchronization and connection stability, the system may send control signals during silence. The recovery time specifies the time required to recover from silent mode to active mode to ensure transmission continuity.

[0119] Discontinuous Reception (DRX) reduces device power consumption by turning off the receiver during periods when continuous data reception is not required. In modern mobile communication networks, especially 4G LTE and 5G networks, mobile devices typically need to maintain a connection with the base station to receive downlink data and control information at any time. However, this continuous connection leads to significant battery drain. DRX effectively reduces this consumption by allowing the device to enter a low-power state and only waking up at specific time intervals to check if there is data to receive.

[0120] In Discontinuous Receive (DRX) mechanisms, a set of parameters helps the device determine when to enter a low-power state and when to wake up to check for data to be received. These parameters include the cycle, active time, and inactive time. First, the DRX cycle is the length of the period during which the device switches between a low-power state and an active state (also known as a wake-up state). A longer DRX cycle can save more energy but may increase data transmission latency. The active time is the period during which the device remains active in each DRX cycle, monitoring downlink signals to determine if data needs to be received. The inactive time is when the device does not receive data in the active state; this timer starts counting down, and once it expires, the device enters a low-power state, also known as a sleep mode. Short DRX cycles are used in some situations to check data transmission needs more frequently, typically in scenarios with high data transmission volume. Long DRX cycles are used when data transmission demand is low to enhance energy efficiency. The retransmission timer determines when a device should retry receiving a data packet if it has not been successfully received. These parameters need to be optimized based on network conditions and user needs to ensure better energy efficiency while providing a good user experience. By properly adjusting DRX parameters, the device can effectively reduce battery consumption while maintaining necessary communication performance.

[0121] In one scenario, DRX technology allows terminal devices to periodically enter a low-power state during certain time periods. When in a low-power state, the terminal device does not monitor Physical Downlink Control Channel (PDCCH) subframes. When the terminal device needs to monitor PDCCH subframes, it can be woken up from sleep mode and enter an active state. This achieves energy saving for the terminal device.

[0122] For ease of description, parameters in DTX and / or DRX modes can be uniformly described as one or more of the following: period, wake-up timing, sleep timing, wake-up duration (or on duration), or sleep duration. The wake-up timing refers to the start of the active period within the DTX and / or DRX period (e.g., DTX active mode, DRX active state). The wake-up timing can be represented by the offset between the start position of the DTX and / or DRX period and the start position of the radio frame. The sleep timing is the start of the inactive period within the DTX and / or DRX period (e.g., DTX silent mode, DRX inactive state, or low-power mode). The wake-up duration is the duration of the active period, and the sleep duration is the duration of the inactive period.

[0123] 6. Paging and monitoring

[0124] Paging refers to the process by which a network device sends a signal to a terminal device to wake it up or notify it of incoming communication (such as a telephone call or data transmission). Network devices send paging messages to terminal devices via radio frames, known as paging frames. A paging frame can include one or more paging occasions (POs) or the start point of a PO. A PO is a set of PDCCH monitoring occasions and can consist of multiple time slots, subframes, or symbols. Paging frames can also send paging control information, such as downlink control information (DCI). Terminal devices can monitor PDCCH subframes on the POs.

[0125] Monitoring refers to the periodic checking of network signals by devices in idle or low-power states to determine if there is any communication or control information that needs to be processed, including monitoring paging messages, system information updates, and other control signaling. The frequency and method of monitoring can be managed through parameters such as the DRX cycle. For example, a terminal device may monitor the PDCCH during a paging event.

[0126] The PO can be determined based on the following information: the paging search space, the first PDCCH monitoring occupancy (firstPDCCH - Monitoring OccasionOfPO) in the PO, and the number of PDCCH monitoring occupancy periods that need to be monitored in the PO corresponding to an SSB (nrofPDCCH - Monitoring OccasionPerSSB - InPO).

[0127] When the PagingSearchSpace configuration sets the paging search space identifier SearchSpaceId=0, Ns takes the value 1 or 2. When Ns=1, there is only one PO starting from the first PDCCH monitoring moment used for paging in the paging frame. When Ns=2, the PO is located in the first half of the paging frame (i_s=0) or the second half of the paging frame (i_s=1).

[0128] When the SearchSpaceId configured in PagingSearchSpace is not 0, the terminal device monitors the (i_s+1)th paging monitoring occasion (PMO), also known as the PDCCH monitoring occasion. PO is a set of "S×X" consecutive PDCCH monitoring occasions, where "S" can be the number of SSBs actually transmitted, determined by the position of the SSB in the beam set (ssb-PositionsInBurst) in the first system information block (SIB1), and X is nrofPDCCH-MonitoringOccasionPerSSB-InPO (if configured), otherwise equal to 1. The [x*S+K]th PDCCH monitoring occasion used for paging in PO corresponds to the paging monitoring occasion of the Kth transmitted SSB, where x=0,1,...X-1,K=1,2,...,S. The PDCCH monitoring timing that does not overlap with the uplink symbol starts from the first PDCCH monitoring timing in the paging frame and is numbered sequentially from 0. When firstPDCCH-MonitoringOccasionOfPO exists, the starting PDCCH monitoring timing number of the (i_s+1)th PMO is the (i_s+1)th value of the firstPDCCH-MonitoringOccasionOfPO parameter; otherwise, the starting PDCCH monitoring timing number of the (i_s+1)th PMO is i_s*S*X. If X>1, then when the terminal device detects the transmission of the PDCCH for paging radio network temporary identifier (P-RNTI) within its PO, the terminal device does not need to monitor subsequent PDCCH monitoring timings for that PO.

[0129] To meet network coverage requirements, a cell needs to transmit SSBs via broadcast beams in different directions. For example, in an NTN network, the number of SSB beams can reach hundreds, resulting in significant energy consumption for the terminals.

[0130] In one scenario, after a terminal device completes its camp on a certain cell, it can be said to have entered an "idle" state. If the terminal subsequently completes a random access procedure, it can be said to have entered a "connected" state. Whether in the idle or connected state, without special settings, the terminal will continuously monitor the downlink PDCCH to check for information from the serving cell. However, there are periods when there is no data exchange between the terminal device and network equipment, and the terminal device's continuous monitoring of the PDCCH is very energy-intensive.

[0131] To address energy consumption issues, communication systems can utilize DTX and / or DRX technologies. DTX / DRX modes can be configured on a cell-by-cell basis, such as cell-level DTX / DRX. During the inactivity period of cell DTX, terminals do not expect to receive certain downlink channels / signals, such as dynamically licensed PDCCH in DCI format, semi-persistent scheduling physical downlink shared channel (SPS PDSCH), and periodic / semi-static channel state information reference signal (CSI-RS). During the inactivity period of cell DRX, terminals do not expect to transmit certain uplink channels / signals, such as configured licenses, periodic / semi-static channel state information reports (CSI) reports, or sounding reference signals (SRS).

[0132] In the cell DTX / DRX mechanism, the cell DTX / DRX pattern must be consistent across all terminal devices within a cell. A single MAC entity can configure a limited number of cell DTX / DRX patterns; for example, a MAC entity can configure a maximum of two cell DTX / DRX patterns. Furthermore, in some cases, the start and slot offsets of two cell DTX / DRX patterns must be identical.

[0133] However, a single cell may contain multiple terminals. For example, a satellite cell has a large coverage area and many terminal devices. Different terminal devices may monitor the common channel at different times, meaning they may require different activation or dormancy periods. A single cell DTX / DRX pattern cannot meet the communication needs of multiple terminal devices. Therefore, a cell DTX / DRX pattern may not be suitable for multiple terminals over a large coverage area.

[0134] In one scenario, a DRX cycle may include one or more paging frames (PF). The terminal device monitors one or more paging opportunities (PO) in each DRX cycle. Different terminals may correspond to different paging opportunities.

[0135] To address the constraint of the number of cell DTX / DRX patterns and meet the communication needs of different terminal devices, this application embodiment employs a DTX / DRX pattern based on SSB or SSB groups, dividing all SSBs in a cell into multiple SSB groups. All SSBs in an SSB group correspond to the same DTX / DRX pattern. To distinguish it from cell DTX / DRX, this application embodiment can refer to it as a beam or beamgroup-level DTX / DRX pattern.

[0136] Here, an SSB group refers to grouping all or part of the SSBs in a cell according to a certain grouping size. In one possible implementation, each SSB group contains the same number of SSBs. For example, the number of SSBs in each SSB group can be determined by referring to the number of SSBs in a current cellular network cell (e.g., a 5G cell). For example, each SSB group may contain 4 or 8 SSBs. It should be understood that in the embodiments of this application, the number of SSBs in each SSB group can be defined as needed, and this application does not impose any limitations on this.

[0137] Each SSB group can be identified by an SSB group identifier (group ID). Optionally, an SSB group's group identifier can indicate the order of that SSB among all SSB groups. For example, the group identifier can be a number from 0 to 5, corresponding to the first SSB group, the second SSB group, and so on, up to the sixth SSB group.

[0138] In some cases, SSBs within a cell can be uniquely identified using SSB indexes, meaning that SSB indexes within a cell are not duplicated; this is also known as extended SSB indexes. In this case, the SSB group ID to which the SSB index belongs can be determined based on the SSB index and the group size of the SSB group. For example, taking a satellite cell containing 256 SSBs, with indices ranging from 0 to 255, if the group size of the SSB group is 8, then the 256 SSBs can be divided into 32 SSB groups. SSBs with indices 0-7 belong to the first SSB group, SSBs with indices 8-15 belong to the second SSB group, and so on.

[0139] In some cases, the SSB indices used by SSBs within a cell can be duplicated, also known as constrained SSB indices. For example, there might be four SSB indices, numbered from 0 to 3. In this case, a group identifier and the SSB index can be combined to uniquely identify an SSB. For instance, taking a satellite cell with 256 SSBs as an example, with an SSB group size of 4, the 256 SSBs can be divided into 64 SSB groups. Each SSB group contains four SSBs, and the SSB indices in each group are numbered from 0 to 3. Each SSB group is distinguished by a different group identifier. The number of constrained SSB indices and the group size of the SSB groups can be the same or different.

[0140] By using beamgroup-level DTX / DRX patterns, network devices and / or terminal devices can divide the SSB beam into multiple SSB beamgroups and configure a DTX / DRX pattern for each SSB beamgroup. Different beamgroups cover different terminal devices within the coverage area of ​​the cell, thus enabling the beamgroup-level DTX / DRX pattern to adapt to the needs of multiple terminals in a large coverage area.

[0141] In one implementation, the terminal device determines the corresponding DTX / DRX pattern based on its own maintained optimal SSB beam and / or the beam group to which the optimal SSB beam belongs, thereby obtaining the corresponding wake-up timing and wake-up duration. In this approach, the terminal device's DTX / DRX pattern only includes the DTX / DRX pattern corresponding to the SSB beam group to which the optimal SSB beam belongs. However, the timing when the terminal device needs to communicate may not be fully encompassed by the wake-up timing and wake-up duration indicated by the DTX / DRX pattern corresponding to the optimal beam, potentially leading to the terminal device failing to be accurately activated.

[0142] In view of this, embodiments of this application propose a communication method, apparatus, and system, aiming to enable DTX / DRX information to meet the communication needs of different terminal devices and improve the accuracy of terminal device activation.

[0143] In the communication method of this application embodiment, the terminal device can acquire SSB information, determine multiple SSBs based on the SSB information, and acquire DTX and / or DRX information corresponding to the multiple SSBs based on the SSB information. In this way, the terminal device can obtain multiple SSBs and their corresponding DTX and / or DRX information. That is, the terminal device obtains the wake-up timing and wake-up duration corresponding to multiple DTX and / or DRX information. Since the terminal device's wake-up timing and wake-up duration correspond to multiple SSBs, compared to only including the DTX / DRX pattern corresponding to the SSB beam group where the optimal SSB beam is located, this communication method allows the terminal device to activate at the wake-up timing corresponding to multiple SSBs and maintain activation during the wake-up duration. This helps the terminal device to be accurately activated and meets the terminal device's communication requirements.

[0144] The following will combine Figure 6 The methods provided in the embodiments of this application will be described in detail.

[0145] Figure 6 A schematic diagram of a communication method is shown. Figure 6 The method shown may include steps S601 to S604. The execution subject of this application embodiment may be a terminal device or a network device, or a chip in a terminal device or a network device. The various steps in the method are described in detail below.

[0146] S601, The network device sends the first information to the terminal device.

[0147] The first piece of information can be received by the terminal device and sent from the second device.

[0148] This first piece of information is used to indicate SSB information.

[0149] In one possible implementation, the first information can be used to indicate the distribution of all or part of the SSBs in the target cell. This first information can also be called SSB pattern indication information. The distribution of all SSBs in the target cell can be called a cell-level SSB pattern. The distribution of part of the SSBs in the target cell can be called a beam or beamgroup-level SSB pattern. A beamgroup-level SSB pattern corresponds to one or more SSB groups, and the SSB pattern includes all SSBs in these SSB groups. A beam-level SSB pattern, however, is not constrained by SSB groups and can be some or all of the SSBs in these SSB groups. The beam or beamgroup-level SSB pattern can be determined by the network device based on information such as the current communication SSBs, the optimal SSBs maintained by the terminal device, or the terminal location.

[0150] For example, the first information used to indicate the distribution of all or part of the SSBs in the target cell may be: an index indicating part or all of the SSBs in the target cell, coverage information of part or all of the SSBs, arrangement of part or all of the SSBs, and location information of the starting SSB.

[0151] The SSB pattern indication information includes coverage, location, and sequence parameters. Coverage parameters indicate the coverage range of all or some SSBs in the target cell, i.e., the coverage information of all or part of the SSBs. Coverage parameters can include the number of coverage beams and the coverage radius of a single beam on the long side, as well as the number of coverage beams and the coverage radius of a single beam on the short side. Location parameters indicate the coordinate position of the starting SSB beam (e.g., corresponding to SSB#0), which can be indicated by the number of SSB beams offset relative to the nadir point on the long and short sides. Sequence parameters indicate the arrangement order of SSBs in the SSB pattern, and can include vertical and horizontal track arrangements. The vertical track arrangement can be referred to as mode1, and the horizontal track arrangement as mode2. The horizontal track arrangement indicates that the SSB indices start from 0 and are arranged sequentially along the short side, while the vertical track arrangement indicates that the SSB indices start from 0 and are arranged sequentially along the long side.

[0152] For example, the SSB pattern can be represented by a rectangular grid. In this grid, the side parallel to the satellite orbit can be called the short side, which in this embodiment can be represented by the x-axis, with positive values ​​along the satellite's movement direction. The side perpendicular to the satellite orbit can be called the long side, which in this embodiment can be represented by the y-axis, with positive values ​​offset 90 degrees clockwise along the satellite's movement direction. The center of the rectangular grid is the sub-satellite point, corresponding to coordinates (0,0). Each SSB (corresponding to an SSB index) corresponds to a coordinate in the rectangular grid.

[0153] Terminal devices can determine the coverage area of ​​network devices based on coverage parameters, corresponding to a rectangular grid. Each cell in the rectangular grid corresponds to the coverage area of ​​one SSB beam. For example, if the number of beams covering the long side is 16 and the number of beams covering the short side is 8, then the coordinates of the long side of the rectangular grid are from -8 to 8, and the coordinates of the short side are from -4 to 4. The coverage radius of a single beam on the long side is 33km, and the coverage radius of a single beam on the short side is 47km, so the coverage area of ​​each beam is a rectangular area of ​​33km by 47km.

[0154] The terminal device determines the coordinates of the starting beam (e.g., SSB#0) based on location parameters. For example, the lower left cell of the rectangular grid corresponds to the starting beam SSB#0, with coordinates (-8, -4).

[0155] The terminal equipment determines the beam arrangement order in the beam pattern based on sequence parameters, which can be either a vertical or horizontal track arrangement. For example, the SSB pattern indication information includes: 16 beams covering the long side, a single beam coverage radius of 33 km on the long side, 8 beams covering the short side, a single beam coverage radius of 47 km on the short side, and the starting beam's coordinate position being (-8, -4). Figure 7 The beam patterns for horizontal and vertical track arrangements are shown.

[0156] It should be noted that in some cases, the SSB indices in an SSB diagram are not necessarily arranged in index order. The SSB indices can also be arranged in other ways, such as in circles around the nadir point from the inside out.

[0157] It is understood that the SSB pattern and the coverage area corresponding to each SSB are described as rectangles for the sake of brevity. The actual SSB coverage area can be other shapes. For example, the coverage area corresponding to each SSB can be circular or hexagonal. The coverage parameters corresponding to the circular coverage area may be diameter, radius, center point position, etc., and the coverage parameters corresponding to the hexagonal coverage area may be side length, center point position, etc. The SSBs in the SSB pattern can also be arranged and scanned in a square or circle. For details, please refer to the relevant description of the beam coverage information. It will not be elaborated here. The description of the shape of the SSB beam coverage area and the shape of the SSB pattern should not limit the embodiments of this application.

[0158] In some other possible implementations, the first information could be SSB indication information.

[0159] One possible implementation is that the network device can determine the SSB group identifier of the first SSB based on the group configuration rules. The SSB indication information can be used to indicate M SSB group identifiers, where M is a positive integer. These M SSB group identifiers indicate the SSB groups of N second SSBs, where the SSB groups are obtained by grouping SSBs in the target cell. For example, the network device can determine the index of the first SSB and the indices of its neighboring SSBs. The SSB indication information can include the SSB group ID of the first SSB and the SSB group IDs of its neighboring SSBs.

[0160] Regarding SSB groups, in one possible implementation, SSB groups can be obtained by grouping the SSBs of the cell where the terminal device is located according to the group size, wherein an SSB group includes at least two SSBs. The first SSB group in the SSB grouping obtained by grouping the SSBs in the target cell can be called the first SSB group.

[0161] The packet size indicates the number of SSBs included in an SSB group and is represented by Q, where Q is a positive integer. For example, if an SSB group includes 8 SSBs, then the SSB group size Q is 8. The packet size can be determined by the network device based on the data processing capabilities of the network device and / or terminal devices; for example, Q is 4 in band 1 and Q is 8 in band 2.

[0162] SSB groups can be indicated by their SSB group IDs. For example, group 0 indicates the first SSB group in the cell, group 1 indicates the second SSB group, and so on, with group n-1 indicating the nth SSB group. For instance, if the SSB group configuration information includes a group size of 4, then SSB#0 to SSB#3 belong to group 0, SSB#4 to SSB#7 belong to group 1, and so on.

[0163] It should be noted that when the SSB index is a constrained index, the number of SSBs Q contained in an SSB group can be different from or the same as the number of SSB index values. When the number of SSB index values ​​is 8, if the number of SSBs N contained in an SSB group is 4, and the number of SSBs N is different from the number of SSB index values, then in SSB groups with even-numbered SSB group identifiers, the SSB index values ​​are 0 to 3, and in SSB groups with odd-numbered SSB group identifiers, the SSB index values ​​are 4 to 7. If the number of SSBs N contained in an SSB group is 8, and the number of SSBs N is the same as the number of SSB index values, then all SSB groups contain 8 SSBs with SSB index values ​​from 0 to 7.

[0164] SSB group IDs can also be indicated by the system frame number (SFN). For example, if an SSB group occupies T radio frames and the total number of SSB groups in the cell is R, then the SSB group ID and the system frame number satisfy the following correspondence: group ID = floor(SFN / T) mod R, where floor represents rounding down and mod describes the remainder. The terminal device can obtain the SSB group ID based on this correspondence using the system frame number. For example, the terminal device receives a frame and parses it to find the system frame number to be 2. Furthermore, the terminal device obtains R = 24 and T = 1. Based on the system frame number, it can determine that the current SSB's corresponding SSB group ID is group ID = floor(2 / 1) mod 24 = 2, indicating that the current SSB belongs to group2. Alternatively, for example, the SSB index uses an extended SSB index, such as... Figure 8As stated above, the SSB index is SSB#9, and the group size Q = 4. Therefore, through calculation, SSB#9 belongs to group2 and is the second SSB in group2. Alternatively, for example, the SSB index can be a constrained (0 to 7) SSB index, such as... Figure 9 The SSB index is SSB#1, and the terminal device obtains the SSB group ID as 2 based on the system frame number.

[0165] SSB packet rules can be issued from network devices to end devices, for example, through SSB packet configuration information. In some cases, SSB packet rules (including packet size) can also be stored separately on network devices and / or end devices.

[0166] For example, the network device determines all or part of the SSBs in the adjacent SSBs of the first SSB based on the first SSB and the SSB pattern in the network device, and sends the determined first SSB and the SSB indication information of the adjacent SSBs of the first SSB to the terminal device.

[0167] One possible implementation is that the SSB indication information can be used to indicate the identifiers of N wave positions, and the identifiers of the N wave positions are used to indicate: N second SSBs.

[0168] For example, the identifiers of the N wave positions can be the wave position IDs corresponding to the SSBs adjacent to the first SSB. The network device can determine the N adjacent second SSBs through the first SSB, and obtain the N wave position IDs corresponding to the N second SSBs through the correspondence between the wave position IDs and SSBs. Correspondingly, the terminal device can obtain information about the N second SSBs, such as SSB indexes, based on the N wave position IDs and the correspondence between the wave position IDs and SSBs.

[0169] The correspondence between wave position ID and SSB can be either a correspondence between wave position ID and SSB index. In some cases, such as when using a constrained SSB index, the correspondence between wave position ID and SSB can be a correspondence between wave position ID, SSB index, and SSB group ID. The correspondence can also be represented in other forms, which are not restricted here.

[0170] One possible implementation is that the SSB indication information can also be used to indicate the index of N second SSBs.

[0171] The first piece of information can be sent via system messages, such as carrying SSB pattern indication information or SSB indication information within the system message. For example, system information includes the Master Information Block (MIB) and System Information Blocks (SIBs). The MIB is the first information decoded by the terminal device when accessing the network, providing information such as system bandwidth, system frame number (SFN), and physical HARQ indicator channel (PHICH) configuration information. SIBs include one or more of SIB1, SIB2, SIB3, or SIBxx, where xx is a positive integer. SIB1 is the first SIB decoded by the terminal device after receiving the MIB, containing cell access-related information such as cell identifier, Public Land Mobile Network (PLMN) identifier, access control information, and time information. SIB2 provides parameters required for RRC connection establishment, such as random access channel configuration, uplink power control parameters, and allocation information. SIB3 contains cell reselection parameters to help the terminal select a suitable cell when moving. SIB4 and subsequent SIBs may include neighbor cell information, location service information, earthquake and tsunami warning system information, commercial mobile alert system information, etc. System messages are carried on a set of radio frames and can be broadcast via the broadcast channel (BCH). The BCH is a one-way control channel that can broadcast common information of the cell, and it consists of a frequency correction channel (FCCH), a synchronization channel (SCH), and a broadcast control channel (BCCH).

[0172] For example, a network device can send SSB pattern indication information or SSB indication information via SIB1.

[0173] It should be noted that this step is optional. In some cases, the terminal device can determine the SSB information based on pre-configuration or other methods, and the network device does not need to send the first information to the terminal device.

[0174] S602. Determine multiple SSBs based on the first information.

[0175] In one possible implementation, the multiple SSBs may include a first SSB and N second SSBs, wherein the first SSB is the optimal SSB maintained by the first device, and the N second SSBs are the N SSBs of the target cell other than the first SSB, where the target cell is the cell where the first device is located, and N is an integer greater than 0. The first device may be a terminal device. These multiple SSBs may also be referred to as the target SSB.

[0176] In some cases, the first SSB can also be the SSB used by the network device to communicate with the terminal device, or the SSB where the terminal device is currently located.

[0177] When the first information is SSB pattern indication information, the process of obtaining multiple SSBs based on the first information can be that the terminal device obtains the target SSB based on the first SSB index and the SSB pattern; or, the terminal device obtains the target SSB or target SSB group based on the first SSB index, the SSB group identifier corresponding to the first SSB, and the SSB pattern.

[0178] For a detailed explanation of the above three methods, please refer to the description of the following embodiments.

[0179] When the first piece of information is an SSB indication, the terminal device can determine the target SSB or target SSB group through the SSB indication information.

[0180] The process by which the terminal device obtains multiple SSBs based on the first information can be either that the terminal device takes all the SSBs corresponding to the SSB indication information as the target SSB, or that it takes a portion of the SSBs corresponding to the SSB indication information as the target SSB.

[0181] In some cases, the terminal device can obtain multiple SSB groups corresponding to SSBs based on the first information. For example, the terminal device can take all the SSB groups corresponding to the SSB indication information as the target SSB group, or take some of the SSB groups in the SSB group corresponding to the SSB indication information as the target SSB group.

[0182] Specifically, the terminal device can select a portion of SSBs and / or groups of SSBs as target SSBs and / or groups of SSBs from the SSBs corresponding to the SSB indication information based on one or more of the following: the location of the terminal device, the capabilities of the network device, the capabilities of the terminal device, and channel characteristics.

[0183] In the above method, the number of SSBs included in the target SSB or the number of SSB groups included in the target SSB group can be pre-configured by the terminal device or issued by the network device. The number of SSBs can also be related to the processing capabilities of the network device and / or the terminal device. For example, if the terminal device supports monitoring a maximum of 5 SSBs, then the target SSB can select a maximum of 5 SSBs; or, if the terminal device supports monitoring a maximum of 8 SSBs, then the target SSB can select a maximum of 8 SSBs.

[0184] In some cases, the first information can also indicate the SSB group identifier to which the first SSB belongs.

[0185] S603, Network devices send third-party information to terminal devices.

[0186] The third information can be DRX / DTX pattern indication information. For example, the third information may include: DRX and / or DTX information corresponding to the first SSB group, and the interval between DRX and / or DTX information corresponding to the SSB group.

[0187] DTX / DRX pattern indication information can indicate a DTX pattern and / or a DRX pattern. For example, a DRX pattern includes multiple DRX information, each of which can be information contained in a DTX / DRX cycle.

[0188] DTX / DRX pattern indication information may include parameters such as period, start position, interval (offset), and duration.

[0189] The period is the period of DTX / DRX. Each period can transmit one or more radio frames, corresponding to one or more SSB groups. For example, if the DTX / DRX period is 20ms, each DTX / DRX period can transmit 2 radio frames, each radio frame can transmit 4 SSBs, and every 8 SSBs form an SSB group, then each DTX / DRX period can correspond to 1 SSB group; if every 4 SSBs form an SSB group, then each DTX / DRX period can correspond to 2 SSB groups.

[0190] The start position information indicates the starting position of the DTX / DRX information corresponding to the first SSB group (group0). This start position information can be the wake-up timing, corresponding to a specific point in time, such as the offset between the start position of the DTX / DRX cycle and the start position of the radio frame, or the start position of the DTX / DRX cycle relative to the slot number of the radio frame. It can also be expressed as start & slot offset. The starting SSB in the first SSB group (group0) can be SSB#0, and its starting position is the starting position of the DTX / DRX information corresponding to group0. For example, the start position information could be the first slot of the first subframe of the first frame (frame0-subframe0-slot0).

[0191] The interval can be the time interval between DRX information corresponding to two adjacent SSB groups, such as 20ms. In some cases, it can also be represented by the number of slots in the interval. For example, in a system using 15kHz subcarrier spacing for communication, a 20ms interval corresponds to 2 radio frames, 20 subframes, and 20 slots. Then, the starting position of the relative DTX / DRX pattern 0 is frame0-subframe0-slot0, and the starting position of the adjacent DRX pattern 1 is frame2-subframe0-slot0.

[0192] The duration can also be referred to as wake-up time, on-state duration, or on-duration duration, such as the duration of DRX activation or DTX activity. The duration includes at least the transmission time of a set of SSBs, such as the time corresponding to the subframes required to transmit a set of SSBs. The on-duration can also include the time for transmitting the system messages for that set of SSBs. System messages can include various information used by the network device to notify the terminal device about the system, such as network information of the cell where the terminal device is located, registration area information, common channel information, and information about other cells. System messages include SIB1, ephemeris, and other system information blocks (OSI). If the SSB is used for paging, the on-duration can also include the transmission time of the paging information.

[0193] For example, Figure 10 A possible DTX / DRX pattern is shown, including the activation and inactivation periods within a DTX / DRX cycle. Within a cell DTX / DRX cycle, the activation and inactivation periods are included in chronological order.

[0194] For example, Figure 11 This illustrates an on-duration method. An SSB group consists of four SSBs, with SSBid 0 (group0), including SSB#0, SSB#1, SSB#2, and SSB#3. The on-duration duration for group0 includes the transmission times of the four SSBs, ephemeris transmission times (e.g., SIB1 and SIB19), OSI transmission times, and paging message transmission times. This ensures that the terminal device can complete at least one reception of the SSB group, ephemeris, OSI, and paging message within the on-duration duration.

[0195] For example, Figure 12 This diagram illustrates the correspondence between SSB groups, system frame numbers, and DTX and / or DRX information. One SSB group corresponds to three radio frames: group0 corresponds to system frame number 0, and its on-duration corresponds to a portion of SFN#0 and SFN#1; group1 corresponds to system frame number 3, and its on-duration corresponds to a portion of SFN#3 and SFN#4.

[0196] It should be noted that the period and / or duration are applicable to all DRX / DTX patterns, meaning that the period and / or duration are the same for all DRX / DTX patterns.

[0197] DRX / DTX pattern indication information can be sent to the terminal device via system messages. System messages are described in subsequent steps. In some cases, DRX / DTX pattern indication information may also be pre-configured in the network device and / or the terminal device.

[0198] It should be noted that this step is optional. In some cases, the terminal device can obtain third-party information through pre-configuration or other means, and the network device does not need to send third-party information to the terminal device.

[0199] S604. Obtain second information based on the first information, wherein the second information is used to indicate the DTX and / or DRX information corresponding to multiple SSBs.

[0200] One SSB group corresponds to one DRX information and / or one DTX information. Different SSB groups may correspond to the same or different DRX and / or DTX information. For example, one DRX and / or DTX information may be information contained in one or more cycles in the DRX / DTX pattern. Secondary information may indicate the DTX and / or DRX information of multiple SSB groups.

[0201] The terminal device obtains the second information based on the first information, which may be that the terminal device obtains the corresponding DRX and / or DTX information based on the information of multiple SSBs.

[0202] The second information can be used to indicate the DRX and / or DTX information corresponding to the first SSB, as well as the DRX and / or DTX information of N second SSBs.

[0203] If the terminal device can obtain third information, it can obtain second information based on first information (information from multiple SSBs) and third information.

[0204] In one possible implementation of obtaining the second information based on the first and third information, the terminal device obtains the DRX and / or DTX information corresponding to the first SSB by: determining the DRX and / or DTX information of the SSB group to which the first SSB belongs based on the index of the first SSB and the index of the initial SSB of the first SSB group, or the SSB group corresponding to the frame number and the DRX and / or DTX information corresponding to the first SSB group, and thus obtaining the DRX and / or DTX information corresponding to the first SSB.

[0205] There is a group interval between the SSB groups to which each of the N second SSBs belongs and the SSB group to which the first SSB belongs. The first offset is used to indicate the group interval between the second SSB and the first SSB. For example, if the group to which the first SSB belongs is group8 and the group to which the second SSB belongs is group4, then the first offset is 4.

[0206] The terminal device can obtain the DRX and / or DTX information corresponding to the second SSB in the following way: based on the first offset, the interval between the DRX and / or DTX information corresponding to the SSB group, and the DRX and / or DTX information corresponding to the first SSB, obtain N DRX and / or DTX information corresponding to the second SSB.

[0207] In some scenarios, DRX and / or DTX information can also indicate the wake-up timing and wake-up duration.

[0208] In this way, the network device can send first information, enabling the terminal device to accurately obtain multiple SSBs based on the first information. Furthermore, the terminal device can obtain DTX and / or DRX information corresponding to the multiple SSBs, thereby activating the device at the wake-up time and wake-up duration indicated by the multiple DTX and / or DRX information. The method of this application embodiment enables the DTX and / or DRX information to support the timing and duration of communication between the corresponding multiple SSBs, meeting the communication needs of the terminal device and improving the accuracy of activation.

[0209] The communication method of this application has been exemplarily described above from the perspective of the interaction between the terminal device and the network device. The following will combine... Figures 13 to 17 Taking network devices and terminal devices as examples, the specific information and implementation methods of the embodiments of this application will be described in detail.

[0210] Figure 13 The method shown may include steps 1301 to 1309, and each step of the method is described in detail below.

[0211] S1301, The network device sends SSB packet configuration information.

[0212] Accordingly, the terminal device receives SSB packet configuration information.

[0213] SSB packet configuration information is used to indicate the rules for all SSB packets in a cell within the coverage area of ​​a network device, such as packet size and / or the mapping between system frame numbers and SSB group IDs. See details for further information. Figure 6 The relevant descriptions will not be elaborated here.

[0214] The SSB packet configuration information sent by the network device to the terminal device includes the SSB index and packet size Q; alternatively, the SSB packet configuration information includes the SSB index and SSB group ID; or alternatively, the SSB packet configuration information includes the SSB index, packet size Q, and the mapping between the system frame number and the SSB group ID. The SSB group ID is obtained by the network device grouping all SSBs according to the packet size.

[0215] In some cases, the SSB group configuration information may also include the correspondence between SSBs and SSB groups. For example, (group0: SSB#0, SSB#1, SSB#2, SSB#3) means that group0 includes the four SSBs SSB#0, SSB#1, SSB#2, and SSB#3. This application does not limit the specific form.

[0216] SSB packet configuration information can be transmitted via system messages and / or radio frames. For example, system messages can transmit packet size information and the mapping between system frame numbers and SSB group IDs. The values ​​of M and / or Q in the SSB packet configuration information can be predefined according to the protocol or determined based on frequency bands, channel characteristics, etc.

[0217] In some cases, the grouping rules indicated by the SSB grouping configuration information may also be pre-configured in the terminal device.

[0218] In this way, network devices and / or terminal devices can obtain the SSB group ID corresponding to the SSB index according to the group configuration rules.

[0219] S1302. The network device sends SSB pattern (cell-level SSB pattern) indication information.

[0220] Accordingly, the terminal device receives the cell-level SSB pattern indication information.

[0221] Cell-level SSB pattern indication information can be used to indicate the SSB pattern, that is, the distribution of all SSBs of the network device. The parameters included in the cell-level SSB pattern indication information and their functions can be found in [reference needed]. Figure 6 The detailed descriptions of the embodiments shown are not repeated here.

[0222] In some cases, the SSB pattern indication information may also include the correspondence between SSBs and SSB groups, which can be found in the description in the SSB group configuration information.

[0223] Network devices can send SSB pattern indication information by including these parameters in system messages (such as SIB1), as detailed in the following reference. Figure 6 The relevant descriptions in the corresponding embodiments will not be repeated here.

[0224] S1303, The terminal device obtains the SSB pattern based on the SSB pattern indication information.

[0225] The terminal device obtains the coverage area, starting position, and arrangement order of the SSB pattern based on the SSB pattern indication information, thereby obtaining the SSB pattern.

[0226] The SSB pattern can be represented by the aforementioned rectangular grid. The cell-level SSB pattern is obtained based on the coverage, location, and sequence parameters in the SSB pattern indication information. The parameters and their functions in the SSB pattern indication information can be found in [reference needed]. Figure 6 The detailed descriptions of the embodiments shown are not repeated here.

[0227] In an SSB drawing, the information for each SSB can be represented in different ways. For example, the SSB index in an SSB drawing can be extended, and the information for each SSB in the SSB drawing can include (SSB index, SSB coordinates), such as... Figure 8 The information of the starting SSB is (SSB#0,(-4,-6)), and the information of the SSB corresponding to the sub-satellite point is (SSB#54,(0,0)).

[0228] In some cases, the terminal device can also obtain the SSB group ID in the SSB diagram based on the SSB group information or SSB group configuration information sent by the network device.

[0229] For example, the information for each SSB in an SSB pattern may include (SSB index, SSB group ID, SSB coordinates). For instance, each SSB group contains 4 SSBs, and when the SSB index is extended, for example... Figure 8 The information for the starting SSB is (SSB#0, group0, (-4, -6)), and the information for the SSB corresponding to the nadir point is (SSB#54, group13, (0, 0)). When the SSB index in the SSB pattern is constraint type, for example, with an index value from 0 to 7, the information for each SSB in the SSB pattern can include (SSB index, SSB group ID, SSB coordinates), for example... Figure 9 The information of the starting SSB is (SSB#0,group0,(-4,-6)), and the information of the SSB corresponding to the sub-satellite point is (SSB#6,group13,(0,0)).

[0230] In this way, the terminal device can obtain the distribution of all SSBs in its cell through the SSB pattern indication information.

[0231] S1304. The network device sends DTX / DRX pattern indication information.

[0232] Accordingly, the terminal device receives the DTX / DRX pattern indication information and obtains the DTX / DRX pattern indication information.

[0233] DTX / DRX pattern indication information can be found in [reference]. Figure 6 The detailed descriptions of the embodiments shown are not repeated here.

[0234] In some cases, the DTX / DRX pattern indication information may also include the correspondence between DTX / DRX information and SSBs. For example, the SSB group corresponding to the DTX / DRX information is group0, where the first SSB (SSB#0) in group0 is the starting SSB, and the SSB corresponding to the DTX / DRX information is SSB#0.

[0235] It should be noted that since one SSB group corresponds to DTX / DRX information, the wake-up time and duration of this DTX / DRX information can support the communication needs of all SSBs within the SSB group. This can also be understood as one DTX / DRX information's wake-up time and duration corresponding to multiple SSBs. For example, a terminal device can monitor multiple SSBs within a corresponding SSB group within the wake-up time and duration of one DTX / DRX information.

[0236] In this way, the terminal device can obtain the beamgroup-level DTX / DRX pattern and obtain the correspondence between the SSB index or SSB group ID and the DTX / DRX information in the DTX / DRX pattern.

[0237] S1305, Optionally, the network device sends the SSB group information corresponding to the first SSB.

[0238] Accordingly, the terminal device can obtain the SSB group information corresponding to the first SSB.

[0239] The SSB group information corresponding to the first SSB can be the SSB group ID to which the first SSB belongs.

[0240] The SSB group information corresponding to the first SSB can be obtained through transmitted radio frames. The terminal device can also obtain the SSB group ID of the SSB group to which the first SSB belongs based on the correspondence between the system frame number of the radio frame and the SSB group. For example, the terminal device obtains the SSB group ID based on the system frame number, the number R of SSB groups in the cell, and the number of radio frames T occupied by an SSB group. Specific methods for obtaining the SSB group ID can be found in the relevant descriptions and will not be elaborated here.

[0241] It should be noted that this step is optional. In some cases, the SSB group information corresponding to the first SSB can be information maintained by the terminal device itself, or obtained based on the first SSB and grouping rules maintained by the device itself, without the need for the network device to send it.

[0242] S1306. The terminal device obtains the target SSB and / or the target SSB group based on the SSB pattern and the first SSB information.

[0243] The terminal device may identify the target SSB and / or the target SSB group using at least one of the following methods.

[0244] Method 1: The terminal device obtains the target SSB based on the first SSB index and SSB pattern.

[0245] In some cases, the first SSB information obtained by the terminal device includes the index of the first SSB, and the obtained SSB pattern information includes the SSB index. The terminal device can obtain the target SSB based on the first SSB index and the SSB pattern.

[0246] For example, the terminal device selects the first SSB and its adjacent SSBs as target SSBs, centered on the first SSB. For instance, Figure 8The first SSB in the diagram is SSB#33. The SSB information in the SSB pattern is (SSB#33, (-2, 3)). The adjacent SSBs can be SSB#33 as the center, with a ring of SSBs around it, and the target SSBs include SSB#20 to SSB#22, SSB#32 to SSB#34, and SSB#44 to SSB#46; or the adjacent SSBs include the two rings of SSBs around the first SSB, and the target SSBs include SSB#7 to SSB#11, SSB#19 to SSB#23, SSB#31 to SSB#35, SSB#43 to SSB#47, and SSB#55 to SSB#59.

[0247] The target SSB can also include some SSBs in the surrounding SSBs. For example, the adjacent SSBs in the target SSB can be selected based on the energy level of the SSBs in the surrounding SSBs, choosing the SSBs with higher energy. For instance, the terminal device selects the optimal SSB and several SSBs with the highest signal power among the optimal SSB's adjacent SSBs based on the measurement results of the SSBs. The adjacent SSBs in the target SSB can also be determined based on the current location of the terminal device. For example, if the terminal device is located in the lower right corner of the coverage area of ​​SSB#33, the adjacent SSBs in the lower right corner can be selected, and the target SSB can include SSB#32, SSB#33, SSB#44, and SSB#45.

[0248] Method 2: The terminal device obtains the target SSB based on the first SSB index, the SSB group identifier corresponding to the first SSB, and the SSB pattern.

[0249] In some cases, the first SSB information obtained by the terminal device includes the SSB group ID of the SSB group to which the first SSB belongs, and the obtained SSB pattern information includes the SSB index, SSB group identifier (group ID), and SSB coordinates. The terminal device can also obtain the target SSB based on the first SSB index, the SSB group ID corresponding to the first SSB, and the SSB pattern. For specific methods, please refer to the description of Method 1, which will not be elaborated here.

[0250] Method 3: The terminal device obtains the target SSB group based on the first SSB index, the SSB group identifier corresponding to the first SSB, and the SSB pattern.

[0251] If the terminal device obtains the first SSB information, including the SSB group ID of the SSB group to which the first SSB belongs, and obtains the SSB pattern information, including the SSB index, SSB group ID, and SSB coordinates, the terminal device can also obtain the target SSB group based on the first SSB index, the SSB group ID corresponding to the first SSB, and the SSB pattern.

[0252] For example, the terminal device can use the SSB group where the first SSB is located and the adjacent SSB groups of the first SSB as the target SSB group. Figure 8 The first SSB information is (SSB#33, group8, (-2, 3)). According to the SSB pattern, the adjacent SSB groups of group8 include group4, group5, group7, group10, and group11. The target SSB group can be group4, group5, group7, group8, group10, or group11. Similar to the target SSB, the selection of the target SSB group can also be one or more SSB groups surrounding the optimal SSB group, or it can be a part of the adjacent SSB groups. The target SSB group can also be determined by the terminal device based on its location.

[0253] The method by which the terminal device determines the number of target SSBs or the number of target SSB groups can be referred to the description in the foregoing embodiments, and will not be repeated here.

[0254] In this way, the terminal device can obtain the target SSB or target SSB group based on the cell-level SSB pattern indication message.

[0255] S1307. The terminal device determines the DTX / DRX information based on the target SSB and / or target SSB group, as well as the DTX / DRX pattern indication information.

[0256] The terminal device can determine the corresponding DTX / DRX information based on the target SSB and DTX / DRX pattern indication information, including determining the DTX / DRX information corresponding to the first SSB and determining the DTX / DRX information corresponding to multiple second SSBs, thereby obtaining the DTX / DRX information of the target SSB.

[0257] Specifically, the terminal device can obtain DTX / DRX information based on the target SSB in the following ways: the terminal device obtains the DTX / DRX information corresponding to each SSB in the target SSB through the SSB index, the SSB group size, and the starting SSB index of the DTX / DRX information.

[0258] Taking DRX as an example, the terminal device can calculate the starting position of the DRX information based on the start and slot offsets. The calculation method is: [(SFN×10)+subframe number]mod(drx-ShortCycle)=(drx-StartOffset)mod(drx-ShortCycle), where SFN is the system frame number, subframe number is the subframe number, mod indicates the modulo operation, drx-ShortCycle is used to indicate the DRX pattern period, and drx-SlotOffset is used to indicate the offset of the starting position of the DRX information in the subframe. This DRX information corresponds to group0.

[0259] For example, if the system frame number is 2, the subframe number is 2, the DRX period is 20ms, and the starting time offset from the subframe is 2ms, then (2*10+2)mod20=2mod20=2, and the starting position of the DRX information corresponding to group0 is 2ms.

[0260] The terminal device can use the starting SSB of group0 (e.g., SSB#0) as a reference. Based on the index difference between the first SSB index and the starting SSB of group0, and the SSB group size, it can obtain the difference in SSB group ID between the first SSB and group0. Therefore, based on the difference in SSB group ID and the interval of the DRX information, it can obtain the DRX information of the first SSB.

[0261] For example, if the first SSB is SSB#33, the starting SSB is SSB#0, and the SSB group size is 4, then the difference in SSB index between the first SSB and the starting SSB is 33, and the difference in the corresponding SSB group ID is floor(33 / 4) = 8. With the DRX information starting at 2ms and the DRX information interval at 20ms, the starting position of the DRX information corresponding to the first SSB is 2 + 8 * 20 = 162ms, thus obtaining the DRX information corresponding to the first SSB.

[0262] Furthermore, the terminal device can calculate the distance between the DRX information corresponding to the adjacent SSB and the DRX information corresponding to the first SSB based on the difference in the index between the adjacent SSB and the first SSB, thereby determining the DRX information corresponding to the adjacent SSB. For example, the starting position of the DRX information in group I is calculated as: I*offset + the starting position of the DRX information corresponding to the first SSB. Thus, the terminal device can obtain the DRX information of the adjacent SSB.

[0263] For example, if an adjacent SSB in the target SSB is SSB#45, the terminal device can calculate the difference in the corresponding SSB group IDs as 3, based on the index difference of 12 between SSB#45 and SSB#33 and the SSB group size of 4. Based on the starting position of the DRX information corresponding to the first SSB, the difference in SSB group IDs, and the interval of the DRX information, the terminal device can determine the starting position of the DRX information corresponding to the adjacent SSB as 162 + 3 * 20 = 222 ms, thereby obtaining the DRX information corresponding to that adjacent SSB.

[0264] In some cases, the terminal device can also determine the SSB group ID corresponding to each SSB in the target SSB based on the SSB index and SSB group size.

[0265] Another way for the terminal device to obtain DRX information based on the target SSB is as follows: The terminal device obtains the DRX information corresponding to each SSB in the target SSB by using the target SSB group ID, the starting SSB group ID of the DRX information, and the starting position and interval of the DRX information.

[0266] For example, the SSB group where the first SSB is located is group8, and the difference between group8 and the starting SSB group group0 corresponding to the DRX information is 8. The wake-up interval of the DRX information is 20ms, and the starting position of the DRX information is 2ms. The calculated start time of the DRX information corresponding to the first SSB is: 2 + 8 * 20 = 162ms.

[0267] Similarly, the terminal device can determine the DRX information corresponding to adjacent SSBs based on the SSB group ID of adjacent SSBs, the SSB group ID of the first SSB, the start position of the DRX information corresponding to the first SSB, and the interval of the DRX information. For example, if the difference between the SSB group IDs of adjacent SSB group 5 and the SSB group group 8 corresponding to the first SSB is 5-8=-3, and the interval of adjacent DRX information is 10ms, the start position of the DRX information corresponding to the first SSB is calculated to be 162-3*10=132ms. Similarly, other adjacent SSB groups in the target SSB group can also obtain the corresponding DRX information.

[0268] The wake-up timing and duration of DTX messages are similar to those of DRX messages. The wake-up timing is the starting position of the DRX message, and the wake-up duration is the duration during which the terminal device is instructed to remain active in the DRX message.

[0269] Based on the DRX information sent by the network device, the terminal device can also know the wake-up duration corresponding to each DRX information, thereby obtaining the wake-up timing and wake-up duration corresponding to the target SSB and / or the target SSB group.

[0270] In this way, the terminal device can determine at what time to wake up and for how long to remain active based on the wake-up timing and wake-up duration.

[0271] The starting position and duration can also be represented by a slot. For example, the starting position can be represented by the number of slots offset from the starting position relative to the starting position of the radio frame.

[0272] It should be noted that adjacent SSBs may have the same SSB group ID, and their corresponding DTX / DRX information (such as wake-up time and wake-up duration) may also be the same. The terminal device, based on the DTX / DRX information obtained from the target SSB or target SSB group, supports the terminal device in fulfilling the communication requirements of the target SSB or target SSB group within the wake-up time and wake-up duration.

[0273] S1308. The terminal device is woken up at the wake-up time corresponding to the target SSB or target SSB group, and remains active during the wake-up time.

[0274] The terminal device wakes up at the wake-up time indicated by the DTX / DRX information and remains active during the wake-up duration.

[0275] For example, the terminal device may monitor the paging timing corresponding to the target SSB or the SSB in the target SSB group after waking up, or the terminal device may transmit data after waking up, including data sending and / or data receiving.

[0276] S1309. The terminal device obtains the updated target SSB and / or the updated target SSB group, and obtains the updated DTX / DRX information.

[0277] During communication, the first SSB may change due to user movement or environmental changes. Network devices can dynamically adjust the beam direction. The terminal device, through the updated first SSB, redetermines the target SSB and / or target SSB group, and obtains updated DTX / DRX information based on the updated target SSB and / or updated target SSB group. The terminal device is then woken up at the wake-up time indicated by the updated DTX / DRX information and remains active for the updated wake-up duration.

[0278] The method by which a terminal device obtains updated target SSBs and / or updated target SSB groups can be determined by the terminal device based on its own channel conditions, etc. The terminal device may also instruct the network device to update DTX / DRX pattern indication information and / or SSB pattern indication information, etc. The related operations performed by the terminal device after obtaining the updated information (determining the target SSB and DTX / DRX information, etc.) can be referred to the description in the preceding steps, and will not be repeated here.

[0279] Using the methods described in the above embodiments, network devices and / or terminal devices can group SSBs of a cell according to SSB grouping configuration information and identify them using IDs, etc. Terminal devices can obtain the SSB pattern of the cell where they are located based on the SSB pattern indication information sent by the network device. This pattern includes cell SSB information (SSB index and / or SSB group ID, etc.), indicating the distribution of SSBs in the cell. Terminal devices can determine the target SSB and / or target SSB group to be monitored based on the SSB pattern and the information of the first SSB. Based on the correspondence between DTX / DRX pattern indication information and SSBs or SSB groups, and according to the SSB information, terminal devices can obtain the corresponding DTX / DRX information based on the DTX / DRX pattern indication information and the target SSB and / or target SSB group. This allows them to obtain the wake-up timing and wake-up duration indicated by the DTX / DRX information. Therefore, terminal devices can be accurately woken up at the wake-up timing corresponding to the target SSB and / or target SSB group.

[0280] Furthermore, network devices and terminal devices can update the target SSB and / or target SSB group when the communication environment changes, such as changes in the first SSB or changes in the SSB distribution in some cases. They can also update the wake-up timing and wake-up duration of the terminal devices. This communication method can adapt to changes in the communication environment, making the selected target SSB and / or target SSB group more accurate, and the obtained wake-up timing and wake-up duration can better meet the communication needs of the terminal devices.

[0281] In the above embodiments, the SSB pattern indication information sent by the network device to the terminal device is for the entire cell. The terminal device can obtain the target SSB and the corresponding DTX / DRX information based on the SSB pattern. In some cases, the terminal device can also obtain other forms of SSB indication information and determine the target SSB or target SSB group based on this SSB indication information, thereby obtaining the terminal device's DTX / DRX information. The following will combine... Figures 14 to 17 The document provides a detailed explanation of other types of SSB indication information obtained by the terminal device and the methods for determining the corresponding DTX / DRX information.

[0282] In one implementation, the SSB indication information can also be a small-scale SSB pattern indication information, such as the SSB indication information being used to indicate a beam-level SSB pattern.

[0283] Figure 14When the SSB indication information is related to the SSB pattern at the beam level or beam group level, one possible implementation of the communication method includes steps 1401 to 1410, which will be described in detail below.

[0284] S1401, The network device sends SSB packet configuration information.

[0285] S1402. The network device sends SSB pattern (beam or beam group level SSB pattern) indication information.

[0286] Accordingly, the terminal device receives the SSB indication information.

[0287] SSB indication information can be used to indicate beam-level or beamgroup-level SSB patterns, and may include the distribution of the first SSB and the SSBs adjacent to it. Beam-level or beamgroup-level SSB pattern indication information includes coverage, location, and sequence parameters. Beam-level or beamgroup-level SSB patterns differ from cell-level SSB patterns in the number of SSBs included. For the concepts and uses of coverage parameters, location parameters, and sequence parameters, please refer to [reference needed]. Figure 13 The relevant descriptions in the corresponding embodiments will not be repeated here.

[0288] For example, the SSB pattern in a network device is as follows: Figure 8 After the network device identifies the first SSB as SSB#33, it can use the distribution of SSB#33 and the surrounding SSBs in the SSB pattern as the SSB pattern itself. The coverage parameters, location parameters, and sequence parameters of the first SSB's SSB pattern are then sent to the terminal device as SSB pattern indication information. Accordingly, the SSB pattern indication information includes: 3 long-side coverage beams, a long-side single-beam coverage radius of 33 km, 3 short-side coverage beams, a short-side single-beam coverage radius of 47 km, the coordinates of the starting beam (-1, -1), and the arrangement order as a horizontal orbit.

[0289] It should be noted that the position parameter is used to indicate the coordinates of the starting SSB of the SSB pattern. It can also be based on the first SSB as the origin of the coordinates or other rules. This application embodiment does not impose any restrictions.

[0290] SSB pattern indication information can be sent to the terminal device via system messages. The system messages can be referred to the description in the foregoing embodiments, and will not be repeated here.

[0291] S1403. The terminal equipment obtains the beam or beam group-level SSB pattern based on the SSB pattern indication information.

[0292] The terminal device can obtain the beam or beamgroup-level SSB pattern based on the SSB pattern indication information in the SSB indication information. For example, based on the beam index, the number of long-side coverage beams (3), the long-side single-beam coverage radius (33km), the number of short-side coverage beams (3), the short-side single-beam coverage radius (47km), the coordinate position of the starting beam (-1, -1), and the arrangement order as a horizontal orbit, the following pattern can be obtained: Figure 15 The diagram shows the beam or beam group-level SSB pattern.

[0293] S1404. The network device sends DTX / DRX pattern indication information.

[0294] S1405. The network device sends the SSB group information corresponding to the first SSB.

[0295] S1406. The terminal device obtains the target SSB and / or the target SSB group based on the SSB pattern indication information.

[0296] Based on the SSB pattern of the first SSB in the SSB indication information, the terminal device can either use all beams in the SSB pattern of the first SSB as the target SSB, or determine a portion of the beams as the target SSB based on the SSB pattern of the first SSB.

[0297] Terminal equipment can also determine the beam group where the beam of the SSB pattern of the first SSB belongs based on the beam index and SSB group configuration information, and take all or part of these beam groups as the target SSB group.

[0298] Specifically, the terminal device can select a portion of beams and / or beam groups as target SSBs and / or target SSB groups from the beams corresponding to the SSB indication information based on one or more of the following: the location of the terminal device, the capabilities of the network device, the capabilities of the terminal device, and channel characteristics. The specific number of beams contained in the target SSB or the number of beam groups contained in the target SSB group can be referred to the description in the foregoing embodiments, and will not be repeated here.

[0299] S1407. The terminal device determines the DTX / DRX information based on the target SSB and / or target SSB group, as well as the DTX / DRX pattern indication information.

[0300] S1408. The terminal device is woken up at the wake-up time corresponding to the target SSB or target SSB group, and remains active during the wake-up time.

[0301] S1409. The network device issues updated first SSB information and / or updated SSB indication information.

[0302] During communication, the first SSB may change due to user movement or environmental changes. Network devices can dynamically adjust the beam direction to determine the updated first SSB information.

[0303] At the same time, the network device determines the updated SSB indication information based on the updated first SSB information.

[0304] The network device sends the updated first SSB information and / or the updated SSB indication information to the terminal device.

[0305] The updated first SSB information can be referred to the description of the first SSB information in the foregoing embodiments. The updated SSB indication information can be referred to the description of the SSB indication information in step S1402. The method by which the network device sends the updated first SSB information and / or the updated SSB indication information can also be referred to the description in steps S1402 and S1404, and will not be elaborated further.

[0306] S1410, The terminal device obtains the updated target SSB and / or the updated target SSB group, obtains the updated wake-up time and wake-up duration, wakes up the terminal device at the updated wake-up time, and remains active within the updated wake-up duration.

[0307] The terminal device re-determines the target SSB and / or target SSB group based on the updated first SSB information and / or updated SSB indication information, and obtains the updated wake-up timing and wake-up duration based on the updated target SSB and / or updated target SSB group.

[0308] The method for the terminal device to obtain the updated target SSB and / or the updated target SSB group can be referred to the description in step S1406. The method for the terminal device to obtain the updated wake-up timing and wake-up duration based on the updated target SSB and / or the updated target SSB group can be referred to the description in step S1407, and will not be repeated here.

[0309] The methods involved in steps S1401, S1404, S1405, S1407, and S1408 in the embodiments of this application can be referred to the relevant descriptions in the foregoing embodiments, and will not be repeated here.

[0310] The method in this application embodiment allows network devices and / or terminal devices to group cell beams according to SSB grouping configuration information and identify them using IDs, etc. The network device determines and sends a beam-level SSB pattern to the terminal device, which then determines the target SSB and / or target SSB group to be monitored based on the beam set SSB pattern. According to the correspondence between DTX / DRX pattern indication information and beams or beam groups, and based on the beam information, the terminal device can obtain the wake-up timing and wake-up duration indicated by the corresponding DTX / DRX information, based on the DTX / DRX pattern indication information and the target SSB and / or target SSB group. Therefore, the terminal device can be accurately woken up at the wake-up timing corresponding to the target SSB and / or target SSB group. In this application embodiment, the method allows the network device to send a beam-level SSB pattern, enabling the terminal device to determine the wake-up timing and wake-up duration by combining DTX / DRX pattern indication information, thus achieving accurate wake-up of the terminal device. Meanwhile, the beam-level SSB pattern indication information sent by the network device to the terminal device only includes the first SSB and its adjacent beams, which can reduce the signaling overhead of the network device.

[0311] Furthermore, when the communication environment changes, such as a change in the first SSB or a change in beam distribution in some cases, the network device can send updated SSB indication information. The terminal device can then update the target SSB and / or target SSB group based on the updated SSB indication information, and update the wake-up timing and wake-up duration based on the updated target SSB and / or target SSB group. This communication method can adapt to changes in the communication environment, making the selected target SSB and / or target SSB group more accurate, and ensuring more accurate wake-up at the obtained wake-up timing and wake-up duration.

[0312] The SSB indication information can be the index of the first SSB and the index of the adjacent beams of the first SSB, or the SSB indication information can be the beam group ID of the first SSB and the beam group ID of the adjacent beams of the first SSB.

[0313] Figure 16 This application illustrates a specific implementation of such SSB indication information. The specific embodiments of this application include steps 1601 to 1609, which will be described in detail below.

[0314] S1601, The network device sends SSB packet configuration information.

[0315] The SSB group configuration information and transmission method can be found in the detailed description of the foregoing embodiments, and will not be repeated here.

[0316] S1602, The network device sends SSB indication information.

[0317] Accordingly, the terminal device receives the SSB indication information.

[0318] SSB indication information can be the index of the first SSB and the indices of its neighboring SSBs, determined by the network device. Alternatively, SSB indication information can be the SSB group ID of the first SSB and the SSB group IDs of its neighboring SSBs.

[0319] Based on the measurement results reported by the terminal device, the network device can determine the SSB with the best performance as the first SSB, and based on the SSB pattern in the network device, determine all or some of the SSBs in the adjacent SSBs of the first SSB, and send the determined first SSB and the SSB indication information of the adjacent SSBs of the first SSB to the terminal device.

[0320] The method by which the network device determines the first SSB and all or some of the adjacent SSBs of the first SSB is similar to the method by which the terminal device determines the target SSB in the foregoing embodiments, and will not be described in detail here.

[0321] SSB instruction information can be sent to the terminal device via system messages. The system messages can be described in detail in the foregoing embodiments, and will not be repeated here.

[0322] S1603, The network device sends DTX / DRX pattern indication information.

[0323] S1604. The network device sends the SSB group information corresponding to the first SSB.

[0324] S1605. The terminal device obtains the target SSB and / or the target SSB group based on the SSB instruction information.

[0325] The terminal device can use the SSB or SSB group corresponding to the received SSB indication information as the target SSB or target SSB group.

[0326] The terminal device can also determine, based on the received SSB indication information, a portion of the SSBs in the SSBs corresponding to the SSB indication information as the target SSB, or a portion of the SSB groups in the SSB group corresponding to the SSB indication information as the target SSB group.

[0327] Specifically, the terminal device can select a portion of SSBs and / or groups of SSBs as target SSBs and / or target SSB groups from the SSBs corresponding to the SSB indication information based on one or more of the following: the location of the terminal device, the capabilities of the network device, the capabilities of the terminal device, and channel characteristics. The number of SSBs contained in the target SSB or the number of SSB groups contained in the target SSB group can be referred to the description in the foregoing embodiments, and will not be repeated here.

[0328] S1606. The terminal device determines the DTX / DRX information based on the target SSB and / or target SSB group, as well as the DTX / DRX pattern indication information.

[0329] S1607. The terminal device is woken up at the wake-up time corresponding to the target SSB or target SSB group, and remains active during the wake-up time.

[0330] S1608. The network device sends updated SSB indication information.

[0331] During communication, the first SSB may change due to user movement or environmental changes. Network devices can dynamically adjust beam direction to determine updated first SSB information. Based on the updated first SSB information, network devices can determine updated SSB indication information. The network device then sends the updated SSB indication information to the terminal device.

[0332] The updated first SSB information can be referred to the description of the first SSB information in the foregoing embodiments. The updated SSB indication information can be referred to the description of the SSB indication information in step S1602. The method by which the network device sends the updated SSB indication information can also be referred to the description in the foregoing steps, and will not be elaborated further.

[0333] S1609. The terminal device obtains the updated target SSB and / or the updated target SSB group, obtains the updated DTX / DRX information, and wakes up the terminal device at the updated wake-up time, and remains active during the updated wake-up duration.

[0334] The terminal device re-determines the target SSB and / or target SSB group based on the updated first SSB information and / or the updated SSB indication information, and obtains the updated DTX / DRX information based on the updated target SSB and / or the updated target SSB group.

[0335] The method for the terminal device to obtain the updated target SSB and / or the updated target SSB group can be referred to the description in step S1605. The method for the terminal device to obtain the updated DTX / DRX information based on the updated target SSB and / or the updated target SSB group can be referred to the description in step S1607, and will not be repeated here.

[0336] The methods involved in steps S1601, S1603, S1604, S1606, and S1607 in the embodiments of this application can be referred to the relevant descriptions in the foregoing embodiments, and will not be repeated here.

[0337] Using the method in this embodiment, network devices and / or terminal devices can group SSBs of a cell according to SSB grouping configuration information and identify them using IDs, etc. Terminal devices can determine the target SSB and / or target SSB group to be monitored based on the SSB index and / or SSB group ID, SSB pattern, and information of the first SSB sent by the network device. Based on the correspondence between DTX / DRX pattern indication information and SSB or SSB group, and according to the SSB information, the terminal device can obtain the wake-up time and wake-up duration indicated by the corresponding DTX / DRX information based on the DTX / DRX pattern indication information and the target SSB and / or target SSB group. Therefore, the terminal device can be accurately woken up at the wake-up time corresponding to the target SSB and / or target SSB group.

[0338] The method in this embodiment, because the SSB indication information issued by the network device only includes indication information of the first SSB and its adjacent SSBs, is more efficient than... Figure 6 The illustrated embodiments can further reduce signaling overhead.

[0339] Furthermore, when the communication environment changes, such as a change in the first SSB or a change in the SSB distribution in some cases, the network device can send updated SSB indication information. The terminal device can then update the target SSB and / or target SSB group based on the updated SSB indication information, and update the wake-up timing and wake-up duration based on the updated target SSB and / or target SSB group. This communication method can adapt to changes in the communication environment, making the selected target SSB and / or target SSB group more accurate, and ensuring more accurate wake-up at the obtained wake-up timing and wake-up duration.

[0340] SSB indication information can also be information related to the waveform ID. Figure 17 This is one possible implementation of a communication method when the SSB indication information is related to the wavelet ID, including steps 1701 to 1709, which will be described in detail below.

[0341] S1701, The network device sends SSB packet configuration information.

[0342] S1702, The network device sends SSB indication information.

[0343] Accordingly, the terminal device receives the SSB indication information.

[0344] The SSB indication information can be the wave position IDs adjacent to the first SSB and the correspondence between the wave position IDs and the SSBs. The first SSB can be referred to the relevant descriptions in the foregoing embodiments, which will not be repeated here.

[0345] The network device can determine the wavelet IDs adjacent to the first SSB based on the first SSB, the SSB pattern, and the correspondence between wavelets and SSBs. The wavelet IDs adjacent to the first SSB in the SSB indication information can be all or part of the wavelet IDs adjacent to the first SSB. The network device sends the determined wavelet IDs adjacent to the first SSB as SSB indication information to the terminal device.

[0346] SSB instruction information can be sent to the terminal device via system messages. The system messages can be referred to the description in the foregoing embodiments, and will not be repeated here.

[0347] It should be noted that this step is optional. The correspondence between the wavelet ID and the SSB can be sent to the terminal device by the network device through system messages, or it can be pre-configured on the terminal device. The terminal device can determine the wavelet ID adjacent to the first SSB based on the first SSB and the correspondence between the wavelet ID and the SSB.

[0348] S1703, The network device sends DTX / DRX pattern indication information.

[0349] S1704, Optionally, the network device sends the first SSB information.

[0350] S1705. The terminal device obtains the target SSB and / or the target SSB group based on the SSB instruction information.

[0351] The terminal device determines the adjacent SSB index based on the wave position ID adjacent to the first SSB in the SSB indication information and the correspondence between the wave position ID and the SSB index, and takes the SSB corresponding to the first SSB index and the adjacent SSB index as the target SSB.

[0352] The terminal device can also determine the SSB group ID of the first SSB, the adjacent SSB index, and the SSB group ID of the adjacent SSB based on the first SSB index, the adjacent wave position ID of the first SSB, and the correspondence between the wave position ID, the SSB index, and the SSB group ID in the SSB indication information. The SSB group corresponding to the SSB group ID of the first SSB and the SSB group ID of the adjacent SSB is then used as the target SSB group.

[0353] The terminal device can use the SSB or SSB group corresponding to the received SSB indication information as the target SSB or target SSB group, or it can determine some of the SSBs in the SSB corresponding to the received SSB indication information as the target SSB, or determine some of the SSB groups in the SSB group corresponding to the SSB indication information as the target SSB group.

[0354] Specifically, the terminal device can select a portion of SSBs and / or groups of SSBs as target SSBs and / or target SSB groups from the SSBs corresponding to the SSB indication information based on one or more of the following: the location of the terminal device, the capabilities of the network device, the capabilities of the terminal device, and channel characteristics. The specific number of SSBs included in the target SSB or the number of SSB groups included in the target SSB group can be referred to the description in the foregoing embodiments, and will not be repeated here.

[0355] S1706. The terminal device determines the DTX / DRX information based on the target SSB and / or target SSB group, as well as the DTX / DRX pattern indication information.

[0356] S1707. The terminal device is woken up at the wake-up time corresponding to the target SSB or target SSB group, and remains active during the wake-up time.

[0357] S1708. The network device issues updated SSB instruction information.

[0358] During communication, the first SSB may change due to user movement or environmental changes. Network devices can dynamically adjust the beam direction to determine the updated first SSB information.

[0359] The network device can determine the updated SSB indication information, including the wavelet IDs adjacent to the updated first SSB, based on the updated first SSB information. The network device then sends the updated SSB indication information to the terminal device.

[0360] The updated first SSB information can be referred to the description of the first SSB information in the foregoing embodiments. The updated SSB indication information can be referred to the description of the SSB indication information in step S1702. The method by which the network device sends the updated SSB indication information can also be referred to the description in steps S1702 and S1704, and will not be elaborated further.

[0361] S1709. The terminal device obtains the updated target SSB and / or the updated target SSB group, obtains the updated DTX / DRX information, and wakes up the terminal device at the updated wake-up time, and remains active during the updated wake-up duration.

[0362] The terminal device re-determines the target SSB and / or target SSB group based on the updated first SSB information and / or the updated SSB indication information, and obtains the updated DTX / DRX information based on the updated target SSB and / or the updated target SSB group.

[0363] The method for the terminal device to obtain the updated target SSB and / or the updated target SSB group can be referred to the description in step S1705. The terminal device obtains the updated wake-up time and wake-up duration based on the updated target SSB and / or the updated target SSB group, and wakes up the terminal device at the updated wake-up time. The method for maintaining the active state within the updated wake-up duration can be referred to the description in steps S1706 and S1707, which will not be repeated here.

[0364] The methods involved in steps S1701, S1703, S1704, S1706, and S1707 of the above method can be referred to the relevant descriptions in the foregoing embodiments, and will not be repeated here.

[0365] The method in this embodiment allows network devices and / or terminal devices to group SSBs in a cell according to SSB grouping configuration information and identify them using IDs, etc. The network device determines and sends a first SSB index and adjacent wavelet IDs to the terminal device, and the terminal device can pre-configure or receive the correspondence between wavelets and SSBs from the network device. The terminal device can determine the target SSB and / or target SSB group to be monitored based on the information related to the wavelet ID in the SSB indication information and the correspondence between wavelets and SSBs. Based on the correspondence between DTX / DRX pattern indication information and SSBs or SSB groups, and according to the SSB information, the terminal device can obtain the wake-up timing and wake-up duration indicated by the corresponding DTX / DRX information based on the DTX / DRX pattern indication information and the target SSB and / or target SSB group. Therefore, the terminal device can be accurately woken up at the wake-up timing corresponding to the target SSB and / or target SSB group. In this embodiment, the network device sends wavelet information, enabling the terminal device to determine the wake-up timing and wake-up duration by combining DTX / DRX pattern indication information, etc., thus achieving accurate wake-up of the terminal device. In addition, in some cases, the correspondence between wavelets and SSBs can be maintained on the terminal device. The network device only needs to send the wavelet IDs corresponding to the first SSB and the adjacent wavelets, which can further reduce signaling overhead.

[0366] Furthermore, network devices and terminal devices can update SSB indication information when the communication environment changes. The terminal device then updates the target SSB and / or target SSB group based on the updated SSB indication information, and updates the wake-up timing and wake-up duration based on the updated target SSB and / or target SSB group. This communication method can adapt to changes in the communication environment, making the selected target SSB and / or target SSB group more accurate, and enabling more accurate wake-up at the obtained wake-up timing and wake-up duration.

[0367] The methods provided in the embodiments of this application have been described in detail above with reference to several accompanying drawings. The following section will further elaborate on these methods. Figures 18 to 19 This application provides a detailed description of the communication device provided in its embodiments. It should be understood that the descriptions of the device embodiments correspond to the descriptions of the method embodiments; therefore, any content not described in detail here will be referred to the method embodiments above, and for the sake of brevity, will not be repeated here.

[0368] Figure 18 This is a schematic block diagram of a communication device 1800 provided in an embodiment of this application. The device 1800 includes a transceiver unit 1801 and a processing unit 1802.

[0369] The communication device 1800 can be a terminal device or a network device, or a component (such as a chip or module) within a terminal device or network device, used to implement the functions of the communication device (terminal device or network device (e.g., base station or satellite)) in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. The chip, for example, can be a system-on-a-chip (SoC).

[0370] The communication device 1800 may include a processing unit 1802, which can process instructions or data to perform corresponding operations. The communication device 1800 may also include a transceiver unit 1801, which can receive or send information.

[0371] It should be understood that when the communication device 1800 is a chip configured in (or used in) a communication device, the transceiver unit 1801 in the communication device 1800 can be the input / output interface or circuit of the chip, and the processing unit 1802 in the communication device 1800 can be the processor in the chip.

[0372] Optionally, the communication device 1800 may further include a storage unit, which can be used to store instructions or data, and the processing unit 1802 can execute the instructions or data stored in the storage unit to enable the communication device to perform corresponding operations.

[0373] The communication device 1800 can be used to implement the functions of the network device or terminal device in the above method embodiments.

[0374] When the communication device 1800 is used to implement the functions of the terminal device in the method embodiment: the processing unit 1802 is used to determine multiple SSBs based on first information, the first information being used to indicate SSB information, and to obtain second information based on the first information, the second information being used to indicate DTX and / or DRX information corresponding to the multiple SSBs. The transceiver unit 1801 is used to obtain the first information, etc.

[0375] For a more detailed description of the aforementioned processing unit 1802 and transceiver unit 1801, please refer to [link / reference needed]. Figure 6 The relevant descriptions in the method embodiments shown.

[0376] When the communication device 1800 is used to implement Figure 6 In the illustrated method embodiment, the network device functions as follows: Transceiver unit 1801 is used to send first information to the terminal device. The first information indicates SSB information and is used to identify multiple SSBs. The first information is also used to acquire second information, which indicates DTX and / or DRX information corresponding to the multiple SSBs. The processing unit 1802 can be used to acquire the first information.

[0377] For a more detailed description of the processing unit 1802 and the transceiver unit 1801, please refer to the relevant descriptions in the above method embodiments.

[0378] It should be understood that the transceiver unit 1801 in the communication device 1800 can be implemented through a communication interface (such as a transceiver, transceiver circuit, input / output interface, or pins, etc.). When the communication interface is a transceiver, the transceiver can consist of a receiver and / or a transmitter. The processing unit 1802 in the communication device 1800 can be implemented through at least one processor, or it can be implemented through at least one logic circuit. Optionally, the communication device 1800 also includes a storage unit, which can be implemented using a memory.

[0379] It is understood that the division of units in the above-described device is merely a logical functional division. Each function can correspond to a functional unit, or two or more functions can be integrated into one functional unit. In actual implementation, all or some units can be integrated into a single physical entity, or they can be distributed across different physical entities. Furthermore, the aforementioned functional units can be implemented in hardware, software, or a combination of both. Whether a function is executed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0380] Figure 19 This is another schematic block diagram of the device provided in the embodiments of this application. For example... Figure 19 As shown, device 1900 includes one or more processors 1901. The processor 1901 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, while the central processing unit can be used to control the device (e.g., a vehicle or a chip), execute software programs, and process data from the software programs.

[0381] Optionally, in one design, processor 1901 may include a computer program (also referred to as code or instructions) that can be executed on processor 1901, causing device 1900 to perform the methods performed by the terminal device or network device in the above method embodiments. In yet another possible design, device 1900 includes circuitry (…). Figure 19 (Not shown), this circuit is used to implement the functions of the terminal device or network device in the above method embodiments.

[0382] For example, processor 1901 can be used to execute a computer program in memory to implement the steps performed by the terminal device or network device in the method embodiments shown above.

[0383] Optionally, the device 1900 may include one or more memories 1902 storing computer programs (sometimes referred to as code or instructions) that can be run on the processor 1901, causing the device 1900 to perform the methods performed by the terminal device or network device in the above embodiments.

[0384] Optionally, the processor 1901 and / or memory 1902 may also store data. The processor and memory may be configured separately or integrated together.

[0385] Optionally, the device 1900 may also include a communication interface 1903. The processor 1901, sometimes referred to as a processing unit, controls the device (e.g., a terminal device or a network device). The communication interface 1903, sometimes referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver, is used to implement the device's transceiver functions; for example, the communication interface 1903 can be used to receive first configuration information.

[0386] Optionally, the device 1900 also includes a communication interface 1903. The processor 1901 and the communication interface 1903 are coupled to each other. It is understood that the communication interface 1903 can be a transceiver or an input / output interface.

[0387] When device 1900 is used to implement the method embodiment, processor 1901 can be used to execute the functions of processing unit 1802, and communication interface 1903 can be used to execute the functions of transceiver unit 1801. Whether communication interface 1903 is used for sending or receiving depends on whether the scheme executed by device 1900 is used to perform a sending action or a receiving action.

[0388] When the aforementioned device 1900 is a chip applied to a terminal, the chip implements the functions of the terminal in the above method embodiments. The terminal's chip receives signals from other modules (such as radio frequency modules or antennas) in the terminal, and these signals may be sent to the terminal by network devices; or, the terminal's chip sends signals to other modules (such as radio frequency modules or antennas) in the terminal, and these signals may be sent to network devices by the terminal.

[0389] When the aforementioned device 1900 is a chip applied to a network device, the chip implements the functions of the network device in the above method embodiments. The chip of the network device receives signals from other modules in the network device, which may be signals sent by a terminal to the network device; or, the chip of the network device sends signals to other modules in the network device, which may be signals sent by the network device to a terminal.

[0390] It is understood that when the device 1900 is a terminal device or a network device, the communication interface 1903 can be a transceiver, specifically including a transmitter and a receiver, with the transmitter used to send signals and the receiver used to receive signals. When the device 1900 is a chip applied to a terminal device or a network device, the communication interface 1903 can be an input / output circuit, wherein the input circuit can be used for receiving and the output interface can be used for sending.

[0391] Optionally, the device 1900 also includes a power supply circuit for supplying power to the device 1900.

[0392] The above-described method embodiments can be applied to a processor, or implemented by a processor. A processor may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiments can be completed through integrated logic circuits in the processor's hardware or through software instructions.

[0393] The aforementioned processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor.

[0394] The steps of the method disclosed in the embodiments of this application can be directly manifested as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can reside in mature storage media in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0395] The memory in this application embodiment can be volatile memory or non-volatile memory, or it can include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0396] This application also provides a chip system including at least one processor for supporting the implementation of the functions of the terminal device or network device involved in any of the above method embodiments, such as sending, receiving, or processing the information involved in the above methods.

[0397] In one possible design, the chip system also includes a memory for storing computer program instructions and data, which may be located inside or outside the processor.

[0398] The chip system can consist of chips or include chips and other discrete components.

[0399] This application also provides a computer program product comprising: a computer program (also referred to as code or instructions), which, when run, executes a method executed by a terminal in the method embodiment, or executes a method executed by a network device.

[0400] This application also provides a computer-readable storage medium storing a computer program (also referred to as code or instructions). When the computer program is run, the method executed by the terminal device or the method executed by the network device in the method embodiment is executed.

[0401] This application also provides a communication system, which includes the aforementioned terminal equipment and network equipment.

[0402] The methods provided in the above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, they can be implemented, in whole or in part, in the form of a computer program product. This computer program product may include one or more computer instructions. When these computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic disk), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0403] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0404] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0405] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0406] The unit described as a separate component may or may not be physically separate. The component shown as a unit may or may not be a physical unit; that is, it may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0407] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0408] If this function is implemented as 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 this application, or part of it, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory, random access memory, magnetic disks, or optical disks.

[0409] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

Claims

1. A communication method, characterized in that, Applied to a first device, the method includes: Multiple synchronization signals and physical broadcast channel blocks (SSBs) are determined based on the first information, wherein the first information is used to indicate SSB information; The second information is obtained based on the first information, and the second information is used to indicate the discontinuous transmission of DTX and / or discontinuous reception of DRX information corresponding to the plurality of SSBs.

2. The method as described in claim 1, characterized in that, The plurality of SSBs includes a first SSB and N second SSBs. The first SSB is the optimal SSB maintained by the first device. The N second SSBs are N SSBs in the target cell other than the first SSB. The target cell is the cell where the first device is located. N is an integer greater than 0.

3. The method as described in claim 1 or 2, characterized in that, The method further includes: Receive the first information from the second device, the first information being used to indicate any of the following: The target cell has all or part of its SSB distribution; or... M SSB group IDs, where M is an integer greater than 0, are used to indicate: the SSB group to which the N second SSBs belong, wherein the SSB group is obtained by grouping the SSBs in the target cell; or... The identifiers of N wave positions are used to indicate: the N second SSBs; or, The indexes of the N second SSBs.

4. The method as described in claim 3, characterized in that, The first information is also used to indicate: the SSB group ID to which the first SSB belongs.

5. The method as described in claim 3 or 4, characterized in that, The first information is used to indicate: the index of some or all SSBs of the target cell, the coverage information of the some or all SSBs, the arrangement of the some or all SSBs, and the location information of the starting SSB.

6. The method according to any one of claims 1 to 5, characterized in that, An SSB group corresponds to one DRX message and / or one DTX message, wherein an SSB group includes at least two SSBs.

7. The method as described in claim 6, characterized in that, The method further includes: Obtain third information, which is used to indicate: the DRX and / or DTX information corresponding to the first SSB group, the interval between the DRX and / or DTX information corresponding to the SSB group, and the first SSB group is used to indicate the first SSB group in the SSB group obtained by grouping SSBs in the target cell. The step of obtaining the second information based on the first information includes obtaining the second information based on the first information and the third information.

8. The method as described in claim 7, characterized in that, The second information is used to indicate the DRX and / or DTX information corresponding to the first SSB, and the DRX and / or DTX information of the N second SSBs. Obtaining the second information based on the first information and the third information includes: Based on the index of the first SSB and the index of the initial SSB of the first SSB group, and / or based on the SSB group corresponding to the frame number and the DRX and / or DTX information corresponding to the first SSB group, determine the DRX and / or DTX information of the SSB group to which the first SSB is located, and obtain the DRX and / or DTX information corresponding to the first SSB. Based on the first offset, the interval between the DRX and / or DTX information corresponding to the SSB group, and the DRX and / or DTX information corresponding to the first SSB, the DRX and / or DTX information corresponding to the N second SSBs is obtained. The first offset is used to indicate the group number interval between the SSB group to which each of the N second SSBs belongs and the SSB group to which the first SSB belongs.

9. The method according to any one of claims 1 to 8, characterized in that, The DRX and / or DTX information is also used to indicate the wake-up timing and wake-up duration, wherein the wake-up timing indicates the timing of activating the first device, and the wake-up duration indicates the duration of monitoring the paging message.

10. The method according to any one of claims 1 to 9, characterized in that, The method further includes: When the optimal SSB maintained by the first device is switched to the third SSB, the fourth SSB is determined according to the first information, or the fourth information is received and the fourth SSB is determined according to the fourth information. The fourth information is used to indicate multiple SSBs other than the third SSB in the SSBs of the target cell. The fourth information is used to indicate SSB information. Determine the DRX and / or DTX information corresponding to the third SSB and the fourth SSB respectively.

11. A communication method, characterized in that, Applied to a second device, the method includes: Send first information, the first information being used to identify multiple synchronization signals and physical broadcast channel blocks (SSBs), the first information being used to indicate SSB information; The first information is also used to obtain second information, which is used to indicate discontinuous transmission of DTX and / or discontinuous reception of DRX information corresponding to the plurality of SSBs.

12. The method as described in claim 11, characterized in that, The plurality of SSBs includes a first SSB and N second SSBs. The first SSB is the optimal SSB maintained by the first device. The N second SSBs are N SSBs in the target cell other than the first SSB. The target cell is the cell where the first device is located. N is an integer greater than 0.

13. The method as described in claim 11 or 12, characterized in that, The first information is used to indicate any of the following: The target cell has all or part of its SSB distribution; or... M SSB group IDs, where M is an integer greater than 0, are used to indicate: the SSB group to which the N second SSBs belong, wherein the SSB group is obtained by grouping the SSBs in the target cell; or... The identifiers of N wave positions are used to indicate: the N second SSBs; or, The indexes of the N second SSBs.

14. The method as described in claim 13, characterized in that, The first information is also used to indicate: the SSB group ID to which the first SSB belongs.

15. The method as described in claim 13 or 14, characterized in that, The first information is used to indicate: the index of some or all SSBs of the target cell, the coverage information of the some or all SSBs, the arrangement of the some or all SSBs, and the location information of the starting SSB.

16. The method according to any one of claims 11 to 15, characterized in that, An SSB group corresponds to one DRX message and / or one DTX message, wherein an SSB group includes at least two SSBs.

17. The method as described in claim 16, characterized in that, The method further includes: Send a third message, which is used to indicate: the interval between the DRX and / or DTX information corresponding to the first SSB group and the DRX and / or DTX information corresponding to the SSB group, wherein the first SSB group is used to indicate the first SSB group in the SSB group obtained by grouping SSBs in the target cell.

18. The method as described in claim 17, characterized in that, The second information is used to indicate the DRX and / or DTX information corresponding to the first SSB, and the DRX and / or DTX information of the N second SSBs. The second information is obtained based on the first information and the third information. The DRX and / or DTX information corresponding to the first SSB is the DRX and / or DTX information of the SSB group to which the first SSB belongs. The DRX and / or DTX information of the SSB group to which the first SSB belongs is obtained based on at least one of the following: the index of the first SSB and the index of the starting SSB of the first SSB group, and / or the SSB group corresponding to the frame number and the DRX and / or DTX information corresponding to the first SSB group. The DRX and / or DTX information corresponding to the N second SSBs is obtained based on the following information: a first offset, the interval between the DRX and / or DTX information corresponding to the SSB group, and the DRX and / or DTX information corresponding to the first SSB. The first offset is used to indicate the group number interval between the SSB group to which each of the N second SSBs belongs and the SSB group to which the first SSB belongs.

19. The method according to any one of claims 11 to 18, characterized in that, The DRX and / or DTX information is also used to indicate the wake-up timing and wake-up duration, wherein the wake-up timing indicates the timing of activating the first device, and the wake-up duration indicates the duration of monitoring the paging message.

20. The method according to any one of claims 11 to 19, characterized in that, The method further includes: Receive SSB update information from the first device, the SSB update information being used to indicate that the optimal SSB maintained by the first device is updated to the third SSB; Send fourth information, the fourth information being used to determine a fourth SSB, the fourth information being used to indicate multiple SSBs other than the third SSB in the SSBs of the target cell, and the fourth information being used to indicate SSB information; Determine the DRX and / or DTX information corresponding to the third SSB and the fourth SSB respectively.

21. A communication device, characterized in that, The processor includes a processor coupled to a memory for storing computer programs, and the processor for executing the computer programs stored in the memory. So that the communication device performs the method as described in any one of claims 1 to 10; or, So that the communication device performs the method as described in any one of claims 11 to 20.

22. A communication device, characterized in that, It includes a processor and a communication interface, wherein the processor is used to control the communication interface. To implement the method as described in any one of claims 1 to 10; or, To implement the method as described in any one of claims 11 to 20.

23. A computer-readable storage medium, characterized in that, The computer stores instructions that, when executed on a computer, cause the computer to perform the method as claimed in any one of claims 1 to 10, or cause the computer to perform the method as claimed in any one of claims 11 to 20.

24. A computer program product, characterized in that, The computer program product includes: a computer program that, when run, causes a computer to perform the method of any one of claims 1 to 10, or causes a computer to perform the method of any one of claims 11 to 20.

25. A chip system, characterized in that, The chip system is applied to an electronic device, the chip system including one or more processors, the one or more processors being configured to invoke computer instructions to cause the electronic device to perform the method as described in any one of claims 1 to 10, or to cause the electronic device to perform the method as described in any one of claims 11 to 20.

26. A communication system, characterized in that, Includes a first communication device and a second communication device. The first communication device is used to perform the method as described in any one of claims 1 to 10, and the second communication device is used to perform the method as described in any one of claims 11 to 20.

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