Wireless communication method and communication device

Abstract

The invention provides a wireless communication method and a communication device, so that an SSB (Service Security Block) can be better matched with a communication scene with unbalanced user service distribution. The method comprises the following steps: acquiring first configuration information, wherein the first configuration information comprises SSB configuration of one or more periods; and based on the SSB configuration of one or more periods, receiving an SSB sent by a network device, the sending period of the SSB being a period formed by combining one or more periods.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a wireless communication method and communication device. Background Technology

[0002] In some communication systems, there is an imbalance in the distribution of user services. For example, in nonterrestrial network (NTN) communication systems, NTN user services exhibit a highly uneven distribution across different times and regions. For instance, in sparsely populated areas such as oceans and deserts, the number of users is small, and their service demand is low. Conversely, in densely populated areas such as cities, the number of users is large, and their service demand is high. Furthermore, for the same area, user service demand is higher during the day and lower at night.

[0003] There is currently no clear solution for scenarios with uneven distribution of user services, on how to send synchronization signal / physical broadcast channel block (SSB) to better match such scenarios. Summary of the Invention

[0004] This application provides a wireless communication method and communication device, enabling SSB to better match communication scenarios with unbalanced service distribution.

[0005] In a first aspect, a wireless communication method is provided, comprising: acquiring first configuration information, the first configuration information including one or more periodic synchronization signal / physical broadcast channel block (SSB) configurations; and receiving an SSB transmitted by a network device based on the one or more periodic SSB configurations, wherein the transmission period of the SSB is a period composed of one or more periods.

[0006] This application embodiment sets a variable-period SSB, meaning the SSB's transmission period is a combination of one or more periods. This allows the SSB's transmission period to be flexibly adjusted according to the distribution of user services. For example, when user service demand is high, the SSB's transmission period can be reduced; when user service demand is low, the SSB's transmission period can be increased. This satisfies user service needs while fully utilizing the network's communication capabilities and avoiding waste of network resources.

[0007] In some possible implementations, the transmission mode of the SSB belongs to one or more of the following modes: a first mode; a second mode; a third mode, wherein the third mode is a combination of the first mode and the second mode; wherein the first mode is to transmit in a manner that is serially connected according to one or more of the aforementioned cycles, and the second mode is to transmit in a manner that is superimposed according to one or more of the aforementioned cycles.

[0008] By setting multiple transmission modes, the flexibility of SSB transmission can be improved, further enhancing the compatibility of SSB with mobile communication scenarios where service distribution is unbalanced.

[0009] In some possible implementations, the transmission mode of the SSB includes the first mode, the one or more cycles include a first cycle, and the first configuration information further includes one or more of the following parameters: a first parameter, used to indicate the cycle length of the first cycle; a second parameter, used to indicate the duration of the first cycle within the second cycle; a first offset, used to indicate the offset of the starting position of the first cycle; and a second offset, used to indicate the offset of the starting position of the second cycle; wherein the second cycle is a cycle formed by concatenating the one or more cycles.

[0010] By including the parameters required for the first mode in the first configuration information, the terminal device can clearly identify the receiving location of the SSB.

[0011] In some possible implementations, the starting position of the second type of cycle satisfies the following formula:

[0012]

[0013] Where, n f The system frame number is where the second type of period begins, L is the number of time units contained in a single system frame, and n is the system frame number. hf T represents the time unit number within the system frame where the starting position of the second type of period is located. offset The second offset is M, where M is the total number of the one or more cycles. The duration of the i-th period among the one or more periods. The offset is the i-th period among the one or more periods, where mod represents the modulo operation, M is a positive integer, and i is an integer greater than or equal to 0 and less than or equal to M-1.

[0014] Using the above formula, the terminal device can quickly determine the starting position of the second cycle, thereby simplifying the operation of the terminal device.

[0015] In some possible implementations, when i = 0, the starting position of the i-th cycle is the starting position of the second cycle; when i ≥ 1, It is the offset value of the starting position of the i-th cycle relative to the ending position of the (i-1)-th cycle.

[0016] The first offset can be clearly identified through the above method. The meaning of this ensures that the terminal device and network device have a consistent understanding of the first offset, thereby improving the success rate of the terminal device receiving the SSB.

[0017] In some possible implementations, the SSB transmission mode includes the second mode, the one or more cycles include a third cycle, and the first configuration information further includes one or more of the following parameters: a third parameter, used to indicate the cycle length of the third cycle; and a third offset, used to indicate the offset of the starting position of the third cycle.

[0018] By including the parameters required for the second mode in the first configuration information, the terminal device can clearly identify the receiving location of the SSB.

[0019] In some possible implementations, the starting position of the j-th period among the one or more periods satisfies the following formula:

[0020]

[0021] Where, n fj Let n be the system frame number where the j-th cycle begins, L be the number of time units contained in a single system frame, and n be the system frame number. hfj Let j be the time unit number within the system frame where the starting position of the j-th cycle is located. T is the offset of the starting position of the j-th cycle. j Let be the period length of the j-th type of period, where mod represents the modulo operation, and j is 0 or a positive integer.

[0022] Using the above formula, the terminal device can quickly determine the starting position of each cycle, thereby simplifying the operation of the terminal device.

[0023] In some possible implementations, the one or more periodic SSB configurations include one or more sets of SSB configurations, one of the sets of SSB configurations includes one or more periodic SSB configurations, and the first configuration information also includes one or more timers, the one or more timers being used to control the effective duration of the one or more sets of SSB configurations.

[0024] This application embodiment uses a timer to control the activation and deactivation of a set of SSB configurations, thereby flexibly adjusting the duration and / or activation status of the timer according to actual needs to change the transmission time and frequency of the SSB. This makes the transmission cycle of the SSB more compatible with the actual needs of the terminal device, and can meet the needs of scenarios with unbalanced distribution and dynamic changes in user service requirements.

[0025] In some possible implementations, if the transmission mode of the SSB is the first mode, then the set of SSB configurations includes one periodic SSB configuration; or if the transmission mode of the SSB includes the second mode, then the set of SSB configurations includes at least two periodic SSB configurations.

[0026] For different transmission modes, the embodiments of this application specify the number of SSB configurations included in a set of SSB configurations under each transmission mode, so that the set of SSB configurations matches the transmission mode of the SSB.

[0027] In some possible implementations, the one or more timers satisfy any of the following conditions: if the SSB transmission mode is the first mode, then at the same time, only one of the one or more timers is in the started state; if the SSB transmission mode is the second mode, then at the same time, one or at least two of the one or more timers are in the started state; if the SSB transmission mode is the third mode, then at the same time, at least two of the one or more timers are in the started state, the at least two timers including a first timer and a second timer, the first timer corresponding to the first mode and the second timer corresponding to the second mode.

[0028] For different modes, the embodiments of this application specify the start state of the timer or the number of timers started in each transmission mode, so that the start of the timer matches the transmission mode of the SSB.

[0029] In some possible implementations, the number of one or more SSB configurations is N, and the number of one or more timers is N. The one or more SSB configurations and the one or more timers satisfy the following conditions: when the p-th timer starts, the p-th SSB configuration becomes effective; when the p-th timer expires, the p-th SSB configuration becomes ineffective. If p is less than N, then the (p+1)-th SSB configuration becomes effective, and the (p+1)-th timer is started. If p equals N, then the N-th SSB configuration becomes ineffective, the 1st SSB configuration becomes effective, and the 1st timer is started. Here, N is a positive integer, and p is an integer greater than or equal to 1 and less than or equal to N.

[0030] This application embodiment can achieve the sequential execution of multiple SSB configurations by controlling the sequential start of multiple timers, thereby reducing the complexity of terminal devices receiving SSBs and reducing the complexity of network devices sending SSBs.

[0031] In some possible implementations, the SSB is transmitted in a serial manner according to the first mode, the second mode and the third mode. The plurality of timers include a third timer, a fourth timer and a fifth timer. The third timer is used to control the effective duration of the first mode, the fourth timer is used to control the effective duration of the second mode and the fifth timer is used to control the effective duration of the third mode.

[0032] This application embodiment uses three timers to control the effective duration of the three modes respectively, so that the three modes can be flexibly combined to realize flexible transmission of SSB.

[0033] In some possible implementations, the multiple timers satisfy the following condition: at any given time, only one of the third, fourth, and fifth timers is in the active state.

[0034] In this embodiment of the application, by controlling the third, fourth and fifth timers to be in the active state at the same time, only one timer can be activated, thereby realizing the alternating execution of the three modes and the series connection of the three modes.

[0035] In some possible implementations, receiving SSBs sent by network devices based on the one or more periodic SSB configurations includes: determining an effective SSB configuration based on one or more of the following: the one or more periodic SSB configurations, the one or more timers; and receiving SSBs sent by the network devices based on the effective SSB configuration.

[0036] The embodiments of this application control the SSB configuration used by the terminal device through the effective SSB configuration, which helps to improve the flexibility of the terminal device in using the SSB configuration.

[0037] In some possible implementations, the first configuration information may further include first indication information, which is used to indicate the transmission mode of the SSB.

[0038] By indicating the SSB transmission mode through the first indication information, the complexity of determining the SSB transmission mode by the terminal device can be reduced.

[0039] In some possible implementations, the configuration of one or more cycles of SSB is related to the area where the beam and / or terminal equipment is located.

[0040] Typically, user business needs vary significantly across different regions. By setting region-specific primary configuration information, this information can be matched to the user business needs of the corresponding region, thus satisfying those needs.

[0041] In addition, there is a certain correspondence between beams and regions. That is to say, the user service requirements corresponding to different beams may also be different. By setting the first configuration information related to the beam, the first configuration information can be matched with the user service requirements of the corresponding beam, thus satisfying the user service requirements corresponding to that beam.

[0042] In some possible implementations, the method further includes: acquiring multiple configuration information, the multiple configuration information being associated with multiple beams and / or multiple regions respectively; determining the first configuration information from the multiple configuration information based on the region where the terminal device is located and the association between the multiple configuration information and the multiple beams and / or the multiple regions.

[0043] The terminal device can determine the first configuration information corresponding to the region where the terminal device is located based on the association between multiple configuration information and multiple beams and / or multiple regions, so that the determined first configuration information can match the region where the terminal device is located and meet the service requirements of the terminal device.

[0044] In some possible implementations, obtaining the first configuration information includes: receiving the first configuration information sent by the network device.

[0045] In some possible implementations, the first configuration information is carried in a System Information Block (SIB) message or a Radio Resource Control (RRC) signaling message.

[0046] In some possible implementations, the first configuration information is predefined by the protocol.

[0047] In a second aspect, a wireless communication method is provided, comprising: sending first configuration information to a terminal device, the first configuration information including one or more periodic synchronization signal / physical broadcast channel block (SSB) configurations; and sending an SSB to the terminal device based on the one or more periodic SSB configurations, wherein the transmission period of the SSB is a period composed of one or more periods.

[0048] In some possible implementations, the transmission mode of the SSB belongs to one or more of the following modes: a first mode; a second mode; a third mode, wherein the third mode is a combination of the first mode and the second mode; wherein the first mode is to transmit in a manner that is serially connected according to one or more of the aforementioned cycles, and the second mode is to transmit in a manner that is superimposed according to one or more of the aforementioned cycles.

[0049] In some possible implementations, the transmission mode of the SSB includes the first mode, the one or more cycles include a first cycle, and the first configuration information further includes one or more of the following parameters: a first parameter, used to indicate the cycle length of the first cycle; a second parameter, used to indicate the duration of the first cycle within the second cycle; a first offset, used to indicate the offset of the starting position of the first cycle; and a second offset, used to indicate the offset of the starting position of the second cycle; wherein the second cycle is a cycle formed by concatenating the one or more cycles.

[0050] In some possible implementations, the starting position of the second type of cycle satisfies the following formula:

[0051]

[0052] Where, n f The system frame number is where the second type of period begins, L is the number of time units contained in a single system frame, and n is the system frame number. hf T represents the time unit number within the system frame where the starting position of the second type of period is located. offset The second offset is M, where M is the total number of the one or more cycles. The duration of the i-th period among the one or more periods. The offset is the i-th period among the one or more periods, where mod represents the modulo operation, M is a positive integer, and i is an integer greater than or equal to 0 and less than or equal to M-1.

[0053] In some possible implementations, when i = 0, the starting position of the i-th cycle is the starting position of the second cycle; when i ≥ 1, It is the offset value of the starting position of the i-th cycle relative to the ending position of the (i-1)-th cycle.

[0054] In some possible implementations, the SSB transmission mode includes the second mode, the one or more cycles include a third cycle, and the first configuration information further includes one or more of the following parameters: a third parameter, used to indicate the cycle length of the third cycle; and a third offset, used to indicate the offset of the starting position of the third cycle.

[0055] In some possible implementations, the starting position of the j-th period among the one or more periods satisfies the following formula:

[0056]

[0057] Where, n fjLet n be the system frame number where the j-th cycle begins, L be the number of time units contained in a single system frame, and n be the system frame number. hfj Let j be the time unit number within the system frame where the starting position of the j-th cycle is located. T is the offset of the starting position of the j-th cycle. j Let be the period length of the j-th type of period, where mod represents the modulo operation, and j is 0 or a positive integer.

[0058] In some possible implementations, the one or more periodic SSB configurations include one or more sets of SSB configurations, one of the sets of SSB configurations includes one or more periodic SSB configurations, and the first configuration information also includes one or more timers, the one or more timers being used to control the effective duration of the one or more sets of SSB configurations.

[0059] In some possible implementations, if the transmission mode of the SSB is the first mode, then the set of SSB configurations includes one periodic SSB configuration; or if the transmission mode of the SSB includes the second mode, then the set of SSB configurations includes at least two periodic SSB configurations.

[0060] In some possible implementations, the one or more timers satisfy any of the following conditions: if the SSB transmission mode is the first mode, then at the same time, only one of the one or more timers is in the started state; if the SSB transmission mode is the second mode, then at the same time, one or at least two of the one or more timers are in the started state; if the SSB transmission mode is the third mode, then at the same time, at least two of the one or more timers are in the started state, the at least two timers including a first timer and a second timer, the first timer corresponding to the first mode and the second timer corresponding to the second mode.

[0061] In some possible implementations, the number of one or more SSB configurations is N, and the number of one or more timers is N. The one or more SSB configurations and the one or more timers satisfy the following conditions: when the p-th timer starts, the p-th SSB configuration becomes effective; when the p-th timer expires, the p-th SSB configuration becomes ineffective. If p is less than N, then the (p+1)-th SSB configuration becomes effective, and the (p+1)-th timer is started. If p equals N, then the N-th SSB configuration becomes ineffective, the 1st SSB configuration becomes effective, and the 1st timer is started. Here, N is a positive integer, and p is an integer greater than or equal to 1 and less than or equal to N.

[0062] In some possible implementations, the SSB is transmitted in a serial manner according to the first mode, the second mode and the third mode. The plurality of timers include a third timer, a fourth timer and a fifth timer. The third timer is used to control the effective duration of the first mode, the fourth timer is used to control the effective duration of the second mode and the fifth timer is used to control the effective duration of the third mode.

[0063] In some possible implementations, the multiple timers satisfy the following condition: at any given time, only one of the third, fourth, and fifth timers is in the active state.

[0064] In some possible implementations, sending an SSB to the terminal device based on the one or more periodic SSB configurations includes: determining an effective SSB configuration based on one or more of the following: the one or more periodic SSB configurations, the one or more timers; and sending an SSB to the terminal device based on the effective SSB configuration.

[0065] In some possible implementations, the first configuration information may further include first indication information, which is used to indicate the transmission mode of the SSB.

[0066] In some possible implementations, the one or more periodic SSB configurations are related to the beam and / or the area where the terminal device is located.

[0067] In some possible implementations, the method further includes: sending multiple configuration information to the terminal device, the multiple configuration information being associated with multiple beams and / or multiple regions respectively, the multiple configuration information including first configuration information.

[0068] In some possible implementations, the first configuration information is carried in a System Information Block (SIB) message or a Radio Resource Control (RRC) signaling message.

[0069] Thirdly, a communication device is provided, comprising a unit consisting of software and / or hardware, the unit being used to perform any one of the methods in the technical solution of the first aspect.

[0070] Fourthly, a communication device is provided, comprising a unit consisting of software and / or hardware, the unit being used to perform any one of the methods in the technical solution of the second aspect.

[0071] Fifthly, a chip is provided, including a processor; the processor is configured to read and execute a computer program stored in a memory to perform any of the methods described in the first aspect.

[0072] Optionally, the chip further includes a memory, which is connected to the processor via a circuit or wire.

[0073] Alternatively, the chip may further include a communication interface.

[0074] In a sixth aspect, a chip is provided, including a processor; the processor is configured to read and execute a computer program stored in a memory to perform any of the methods described in the second aspect.

[0075] Optionally, the chip further includes a memory, which is connected to the processor via a circuit or wire.

[0076] Alternatively, the chip may further include a communication interface.

[0077] In a seventh aspect, a terminal device is provided, the terminal device comprising: a processor, a memory, and an interface; the processor, the memory, and the interface cooperate with each other to enable the terminal device to execute any one of the technical solutions described in the first aspect; or to include any one of the chips described in the fifth aspect.

[0078] Eighthly, a network device is provided, the network device comprising: a processor, a memory, and an interface; the processor, memory, and interface cooperate with each other to enable the network device to execute any one of the technical solutions described in the second aspect; or to include any one of the chips described in the sixth aspect.

[0079] Ninthly, a computer-readable storage medium is provided, wherein a computer program is stored therein, and when the computer program is executed by a processor, the processor performs any one of the methods described in the first or second aspect.

[0080] In a tenth aspect, a computer program product is provided, the computer program product comprising: computer program code, which, when executed on an electronic device, causes the electronic device to perform any one of the methods described in the first or second aspect. Attached Figure Description

[0081] Figure 1 A schematic diagram of a communication system provided in an embodiment of this application;

[0082] Figure 2 This is a schematic diagram of a time-frequency structure of SSB;

[0083] Figure 3 This is a flowchart of the terminal device performing a cell search;

[0084] Figure 4 This is a schematic diagram of an NTN communication scenario;

[0085] Figure 5 This is a schematic flowchart illustrating a wireless communication method provided in an embodiment of this application;

[0086] Figure 6 This is a schematic diagram of a first mode provided in an embodiment of this application;

[0087] Figure 7 This is a schematic diagram of a second mode provided in an embodiment of this application;

[0088] Figure 8 This is a schematic diagram illustrating the generation method of the third mode provided in the embodiments of this application;

[0089] Figure 9 This is a schematic diagram of a combination of the first mode, the second mode, and the third mode provided in the embodiments of this application;

[0090] Figure 10 This is a schematic diagram illustrating another combination of the first, second, and third modes provided in the embodiments of this application;

[0091] Figure 11 This is a schematic diagram of a combination of the first mode and the third mode provided in the embodiments of this application;

[0092] Figure 12 This is a schematic diagram of a combination of the second and third modes provided in the embodiments of this application;

[0093] Figure 13 This is a schematic block diagram of a communication device provided in an embodiment of this application;

[0094] Figure 14 This is a schematic block diagram of another communication device provided in the embodiments of this application;

[0095] Figure 15 This is a schematic diagram of the structure of a device provided in an embodiment of this application. Detailed Implementation

[0096] Figure 1 This is a schematic diagram of the architecture of the communication system 1000 used in an embodiment of this application. Figure 1 As shown, the communication system includes a radio access network (RAN) 100, wherein the RAN 100 includes at least one RAN node (e.g., Figure 1 110a and 110b, collectively referred to as 110, may also include at least one terminal device (such as...). Figure 1RAN100, denoted as RAN100, comprises RAN nodes 120a-120j, collectively referred to as RAN120. RAN100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment. Figure 1 (Not shown in the image). Terminal device 120 is wirelessly connected to RAN node 110. Terminal devices and RAN nodes can be interconnected via wired or wireless means. Communication system 1000 may also include core network 200. RAN node 110 is connected to core network 200 via wireless or wired means. The core network equipment in core network 200 and RAN node 110 in RAN 100 can be independent physical devices, or they can be the same physical device integrating the logical functions of core network equipment and RAN node. Communication system 1000 may also include Internet 300.

[0097] RAN 100 can be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, or a future radio access system as defined in the 3rd generation partnership project (3GPP). RAN 100 can also include two or more of the above-mentioned different radio access systems. RAN 100 can also be an open RAN (O-RAN).

[0098] RAN nodes, also known as radio access network equipment, RAN entities, or access nodes, are used to help terminal devices access communication systems wirelessly. In one application scenario, an RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in 5G mobile communication systems, a next-generation base station in 6G mobile communication systems, or a base station in future mobile communication systems. RAN nodes can also be macro base stations (such as...) Figure 1 110a in the text), can also be a micro base station or an indoor station (such as... Figure 1 110b in the middle can also be a relay node or a donor node.

[0099] In another application scenario, multiple RAN nodes can collaborate to help terminal devices achieve wireless access, with different RAN nodes implementing different functions of the base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), or a radio unit (RU). Here, the CU performs the functions of the base station's Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP), and can also perform the functions of the Service Data Adaptation Protocol (SDAP). The DU performs the functions of the base station's Radio Link Control (RANC) and Medium Access Control (MAC) layers, and can also perform some or all of the physical layer functions. For specific descriptions of these protocol layers, refer to the relevant 3GPP technical specifications. The RU can be used to implement radio frequency signal transmission and reception. The CU and DU can be two independent RAN nodes, or they can be integrated into the same RAN node, such as within a baseband unit (BBU). RUs can be included in radio frequency equipment, such as remote radio units (RRUs) or active antenna units (AAUs). CUs can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0100] In different systems, RAN nodes may have different names. For example, in an O-RAN system, a CU can be called an open CU (O-CU), a DU can be called an open DU (O-DU), and an RU can be called an open RU (O-RU). The RAN nodes in the embodiments of this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules. For example, a RAN node can be a server loaded with the corresponding software modules. The embodiments of this application do not limit the specific technology or device form used in the RAN nodes. For ease of description, a base station is used as an example of a RAN node in the following description.

[0101] A terminal device is a device with wireless transceiver capabilities, capable of sending signals to or receiving signals from a base station. Terminal devices can also be referred to as terminals, user equipment (UE), mobile stations, mobile terminals, etc. They can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), the Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, and smart cities. Terminal devices can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technologies or device forms used in the terminal devices.

[0102] Base stations and terminal equipment can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of the base stations and terminal equipment.

[0103] The roles of base stations and terminal devices can be relative, for example, Figure 1 The helicopter or drone 120i can be configured as a mobile base station. For terminal devices 120j accessing the wireless access network 100 via 120i, 120i is a base station; however, for base station 110a, 120i is a terminal device, meaning that 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a base station-to-base station interface protocol; in this case, 120i is also a base station relative to 110a. Therefore, both base stations and terminal devices can be collectively referred to as communication devices. Figure 1 The 110a and 110b in the text can be referred to as communication devices with base station functions. Figure 1 The 120a-120j in the text can be referred to as communication devices with terminal functions.

[0104] Communication between base stations and terminal devices, between base stations, and between terminal devices can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0105] In the embodiments of this application, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal device can be executed by modules (such as chips or modems) within the terminal device, or by a device that includes terminal device functions.

[0106] SSB is one of the most important pilot signals used in communication systems. Its role is related to many aspects of terminal equipment access to the cell, such as cell selection, time and frequency synchronization, and radio resource management (RRM) measurement.

[0107] SSB time-frequency domain structure

[0108] Taking a 5G communication system as an example, SSB includes synchronization signals and broadcast signals. Synchronization signals include the primary synchronization signal (PSS) and the secondary synchronization signal (SSS), while broadcast signals include physical broadcast channel (PBCH) data and PBCH demodulation reference signal (DMRS) signals.

[0109] The time-frequency domain structure of SSB is as follows: Figure 2As shown, an SSB occupies 4 symbols in the time domain and 20 resource blocks (RBs) in the frequency domain, which is equivalent to 240 subcarriers. One RB occupies 12 subcarriers in the frequency domain and 1 symbol in the time domain. One RB includes 12 resource elements (REs), and one RE occupies 1 subcarrier in the frequency domain and 1 symbol in the time domain. These symbols can be orthogonal frequency division multiplexing (OFDM) symbols.

[0110] See Figure 2 The PSS is located on symbol 0 of the SSB and occupies 127 REs in the frequency domain. The remaining REs of symbol 0 are empty and cannot be used to schedule other channels or signals.

[0111] The SSS is located on symbol 2 of the SSB, occupying 127 REs in the frequency domain, with the remaining REs used for the PBCH and isolation band.

[0112] The PBCH is located in the last three symbols of the SSB. The PBCH is transmitted within the full bandwidth of symbols 1 and 3 of the SSB. On symbol 2, the upper and lower ends of the SSS are separated from the PBCH by 9 and 8 REs, respectively. This design is to reserve a certain guard interval between the SSS and PBCH signals to suppress inter-carrier interference.

[0113] SSBs are transmitted periodically, with a period that can vary from 5ms to 160ms. Terminal devices cannot wait too long on a single frequency during cell search; therefore, they default to transmitting every 20ms. If a terminal device waits for 20ms on a frequency without finding an SSB, it assumes there is no carrier on that frequency and then tries again on the next frequency in the synchronization grid.

[0114] The transmission time of the SSB within each transmission cycle is limited to a 5ms half-frame, and the number of repetitions is related to the frequency band and subcarrier width used by the communication system. The minimum number of repetitions is 4, and the maximum is 64. For example, with a 30kHz subcarrier configuration and a carrier frequency band of 3GHz to 6GHz, the SSB can be retransmitted 8 times per cycle.

[0115] Some communication systems (such as 5G communication systems) have introduced beamforming. In practical use, different Service Blocks (SSBs) within a cycle can be assigned to different beams for transmission. Each SSB has a different transmission time, and multiple SSBs within a cycle transmit in turn; therefore, this method can be called SSB beam scanning, and the set of SSBs participating in the beam scanning can be called an SS burst set. Because the energy of the beam is more concentrated, beam scanning can enhance the coverage of the communication system.

[0116] The number of SSB transmissions supported by different frequency bands per cycle varies, therefore, the beamforming capabilities of different frequency bands also differ. Generally, the higher the frequency band, the stronger the beamforming capability.

[0117] For example, for frequency bands below 3 GHz, a single SS burst contains a maximum of 4 SSBs, so a maximum of 4 beams can be scanned in one cycle; for frequency bands from 3 GHz to 6 GHz, a single SS burst contains a maximum of 8 SSBs, so a maximum of 8 beams can be scanned in one cycle; for millimeter-wave frequency bands above 6 GHz, a single SS burst contains a maximum of 64 SSBs, so a maximum of 64 beams can be scanned in one cycle.

[0118] After the terminal device is powered on, it performs a cell search and random access procedure to connect to a cell. This process is mainly based on downlink synchronization channel and signal detection. Through this process, the terminal device can obtain cell identity (ID), frequency synchronization, and downlink time synchronization. The entire cell search process can include PSS search, SSS detection, PBCH detection, and remaining minimum system information (RMSI) detection, such as... Figure 3 As shown.

[0119] The terminal equipment first searches for the PSS, completes OFDM symbol boundary synchronization, coarse frequency synchronization, and obtains the cell identifier 2. The terminal equipment can detect the PSS at various frequency points of the synchronization signal frequency grid.

[0120] After finding the PSS, the terminal device can further detect the SSS to obtain cell identifier 1. Based on identifier 1 and identifier 2, the terminal device can calculate the physical cell identifier (PCI). At this point, the terminal device has the ability to parse the system messages contained in the SSS.

[0121] After the PSS is found and the SSS is detected, the terminal device begins to receive the PBCH. The PBCH can carry system messages from the SSS. Since these system messages are necessary for the terminal device to access the network, these messages can also be called main information blocks (MIBs).

[0122] The MIB contains one or more of the following information: system frame number, initial access subcarrier spacing, whether the cell is locked, and other system messages (such as system information block (SIB)1).

[0123] In order to access the cell, in addition to obtaining the MIB, the terminal device also needs to obtain some other system messages, such as the remaining minimum system information (RMSI), which may include SIB1.

[0124] SIB1 is transmitted on the physical downlink shared channel (PDSCH) with a period of 160ms. Terminal devices can obtain the parameter set used for SIB1 transmission and the distribution of control resources scheduling SIB1 through the MIB carried by the PBCH. Therefore, terminal devices can obtain SIB1 based on the MIB. After obtaining the MIB and SIB1, the terminal device can access the network.

[0125] RRM measurement

[0126] Due to the mobility of terminal devices, they may move from the coverage area of ​​one cell to the coverage area of ​​another. To ensure service continuity and communication quality, terminal devices can perform RRM measurements to enable cell reselection or handover.

[0127] For terminal devices in Radio Resource Control Inactive (RRC-INACTIVE) and RRC Idle (RRC-IDLE) states, the terminal device can perform RRM measurements and perform cell reselection based on the RRM measurement results. For terminal devices in RRC Connected (RRC_CONNECTED) state, the terminal device can perform RRM measurements and report the measurement results to the network device. The network device can then control the terminal device to perform cell handover based on the signal measurement results.

[0128] During RRM measurements, the terminal device can perform RRM measurements on multiple cells (such as the serving cell and at least one neighboring cell) to obtain signal measurement results for multiple cells. These signal measurement results can be used for cell reselection or cell handover. For example, during cell reselection, the terminal device can select a cell with good signal quality for access. Similarly, during cell handover, the terminal device can switch from the serving cell to a target cell with better signal quality.

[0129] RRM measurement can be SSB-based RRM measurement. The terminal device obtains the signal measurement results by measuring the SSB.

[0130] Signal measurement results may include at least one of the following: reference signal receiving power (RSRP) measurement results, reference signal receiving quality (RSRQ) measurement results, and signal to interference plus noise ratio (SINR) measurement results.

[0131] NTN communication system

[0132] For terrestrial network communication, it's impossible to deploy communication equipment in scenarios such as oceans, mountains, and deserts. Alternatively, considering the costs of setting up and operating communication equipment, terrestrial communication typically doesn't cover sparsely populated areas. Therefore, terrestrial network communication cannot provide seamless coverage. NTN communication is considered an important aspect of future wireless communication technology development.

[0133] NTN communication systems provide communication services to users using non-terrestrial methods. These non-terrestrial methods can include, for example, satellite or unmanned aircraft system (UAS) platforms. Satellite communication systems can include both satellite and terrestrial components. NTN communication can refer to communication conducted by terrestrial radio communication equipment using satellites as relays.

[0134] Compared to terrestrial network (TN) communication, NTN has many advantages.

[0135] First, NTN communication is not limited by the user's geographical location. NTN communication networks are not geographically restricted and can extend their coverage. For areas where current cellular communication systems cannot cover or where coverage is too costly, such as oceans, deserts, and remote mountainous areas, NTN communication networks can solve communication problems.

[0136] In theory, satellites can orbit the Earth, thus every corner of the Earth can be covered by satellite communication. Furthermore, NTN communication equipment can cover a much larger area than terrestrial communication equipment. For example, in satellite communication, a single satellite can cover a large ground area.

[0137] Secondly, NTN communication has significant social value. NTN communication can achieve coverage at a lower cost; for example, satellite communication can reach remote mountainous areas or impoverished and underdeveloped countries or regions at a lower cost. This allows people in these areas to enjoy advanced voice communication and mobile internet technologies, helping to narrow the digital divide with developed regions and promoting development in these areas.

[0138] Secondly, NTN communication has industry application value. NTN communication has a long communication distance without significantly increasing communication costs. For latency-sensitive services requiring long-distance transmission, satellite communication can be used to reduce transmission latency.

[0139] In addition, NTN communication is highly stable and can be used for emergency communication. For example, NTN communication is not limited by natural conditions, and in extreme situations such as disasters (e.g., earthquakes) where cellular communication infrastructure is unavailable, satellite communication can quickly establish a communication connection.

[0140] Based on their orbital altitude, communication satellites can be classified into low-earth orbit (LEO) satellites, medium-earth orbit (MEO) satellites, geostationary earthorbit (GEO) satellites, and high elliptical orbit (HEO) satellites.

[0141] To ensure satellite coverage and enhance the overall capacity of the satellite communication system, satellites can employ multi-beam coverage, meaning multiple beam footprints can form the satellite's coverage area. For example, a single satellite can generate dozens or even hundreds of beams to cover the ground. A single satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers.

[0142] In traditional communication satellite systems, a single satellite typically provides services to the ground via multiple beams. Figure 4 An NTN communication system is shown. Figure 4The NTN communication system shown includes satellite 410 and satellite 420. Satellite 410 can provide services to terminal devices in area 430 through multiple beams, and satellite 420 can provide services to terminal devices in area 440 through multiple beams.

[0143] Multiple beams share the bandwidth and power of a satellite, and the coverage areas of different beams generally overlap to some extent. To support wide-area coverage, a single satellite is usually equipped with hundreds or even thousands of beams. Due to limitations in satellite transmit power or backhaul link bandwidth, a satellite can generally only activate a small number of beams at the same time.

[0144] NTN user services exhibit a highly uneven distribution across different times and regions. For example, in sparsely populated areas such as oceans and deserts, the number of users is small, and their service demand is low. Conversely, in densely populated areas such as cities, the number of users is large, and their service demand is high. Furthermore, for the same region, user service demand is higher during the day and lower at night.

[0145] Providing the same network service to different regions and at different times would result in a significant portion of satellite service capacity being wasted over oceans and uninhabited land, or in areas with a large number of users being unable to provide the necessary services to meet their needs.

[0146] To better suit this scenario, beam hopping technology was introduced. Beam hopping technology can fully utilize the communication capabilities of satellites while meeting business requirements.

[0147] By employing beam-hopping technology, the active time of a satellite can vary in different areas, thus meeting the service needs of different regions. For example, in densely populated areas, the satellite's illumination time can be extended, while in sparsely populated areas, the satellite's illumination time can be reduced.

[0148] Beam skipping technology can utilize all available satellite resources to provide services to specific locations or users. By adjusting the beam's illumination duration and period, different capacity values ​​can be provided to balance the requirements of different beam coverage areas.

[0149] As mentioned above, the SSB is an important basis for terminal equipment to complete cell selection, time and frequency synchronization, RRM measurement, etc. How to better match the uneven distribution of user services in the time and space dimensions in the NTN beam-hopping scenario, give full play to the satellite's capabilities, and improve system efficiency is an urgent problem to be solved.

[0150] Currently, the SSB transmission cycle is fixed, meaning it remains the same regardless of the time or region. However, in NTN communication scenarios, user service distribution is uneven across different times and regions. For example, some areas (such as densely populated areas) have higher service demands from terminal devices, while others (such as sparsely populated areas) have lower demands. Similarly, within the same area, terminal device demand may be higher during certain time periods (such as daytime) and lower at other times (such as nighttime). Sending SSBs at the same cycle can lead to the following problems: wasting communication resources in areas with lower demand, while causing resource shortages in areas with higher demand, resulting in an unreasonable allocation of network resources.

[0151] The above description uses the NTN communication scenario as an example. This application embodiment is not limited to this scenario. It can be used for any communication scenario where the user's service distribution is unbalanced.

[0152] To address the aforementioned issues, embodiments of this application provide a wireless communication method and apparatus. By setting a variable-period SSB, i.e., the transmission period of the SSB is a combination of one or more periods, the transmission period of the SSB can be flexibly adjusted according to the distribution of user services. For example, when user service demand is high, the transmission period of the SSB can be reduced, and when user service demand is low, the transmission period of the SSB can be increased, thereby satisfying user service needs while fully utilizing the network's communication capabilities.

[0153] The following is combined with Figure 5 The wireless communication method provided in the embodiments of this application will be described in detail. Figure 5 The method illustrated is a description from the perspective of device interaction. The specific forms and numbers of the devices shown are merely examples and should not constitute any limitation on the implementation of the method provided in this application. The communication method of this application embodiment will be described in detail below using network devices and terminal devices as the implementing entities.

[0154] It should be understood that the terminal device in the embodiments of this application can be the terminal device itself, or a chip, chip system, or processor that supports the terminal device in implementing communication methods, or a logic module or software that can implement all or part of the terminal device. The network device in the embodiments of this application can be the network device itself, or a chip, chip system, or processor that supports the network device in implementing communication methods, or a logic module or software that can implement all or part of the network device.

[0155] The communication system in this application embodiment can be any communication system with unbalanced user service distribution, and the terminal device and network device in this application embodiment can be terminal devices in the communication system. Taking the NTN communication system as an example, the terminal device and network device in this application embodiment can be terminal devices in the NTN communication system.

[0156] See Figure 5 In step S510, the terminal device obtains the first configuration information.

[0157] The first configuration information may include one or more periodic SSB configurations. In some implementations, the first configuration information may include a single periodic SSB configuration. In some implementations, the first configuration information may include multiple periodic SSB configurations.

[0158] The SSB configuration in this application embodiment may include one or more of the following: SSB transmission period, duration of each period, offset of the start position of each period, SSB transmission frequency, etc. These details will be provided below.

[0159] The types of cycles in this application embodiment can be classified based on the length of the cycle. If two cycles have different lengths, then the two cycles are two different types of cycles. If two cycles have the same length, then the two cycles are the same type of cycle.

[0160] In some embodiments, the first configuration information may be related to the region where the terminal device is located. In this case, multiple sets of first configuration information can be configured for multiple regions. The first configuration information corresponding to different regions may be the same or different. As can be seen from the above, the user service requirements of different regions vary greatly. By setting region-related first configuration information, the first configuration information can be matched with the user service requirements of the corresponding region, thus meeting the user service requirements of that region.

[0161] In some implementations, taking the first region as an example, if the user service needs in the first region are relatively stable, then a single periodic SSB configuration can be configured for the first region. If the user service needs in the first region change significantly, then multiple periodic SSB configurations can be configured for the first region. If the user service needs in the first region and the second region are the same, then the same SSB configuration can be configured for both regions.

[0162] In some implementations, user service demands for the same area may be unevenly distributed over time. Therefore, for the same area, if user service demands are high at a certain moment or over a certain period of time, the SSB transmission period can be set to be smaller; if user service demands are low at a certain moment or over a certain period of time, the SSB transmission period can be set to be larger.

[0163] This application does not specifically limit the method of region division in its embodiments. As an example, regions can be divided according to user business needs. For instance, regions with the same user business needs can be grouped into the same region, while regions with different user business needs can be divided into different regions. In other words, as another example, regions can be divided based on geographical location. For instance, regions can be divided based on latitude and longitude information.

[0164] In some embodiments, the first configuration information is beam-related. In this case, the first configuration information can be configured separately for multiple beams. The first configuration information corresponding to different beams can be the same or different. There is a certain correspondence between beams and regions, that is, the user service requirements corresponding to different beams may also be different. By setting the first configuration information related to the beam, the first configuration information can be matched with the user service requirements of the corresponding beam, thus satisfying the user service requirements corresponding to that beam.

[0165] In some implementations, if the user service requirements corresponding to a certain beam are relatively stable, then only one periodic SSB configuration needs to be set on that beam; if the user service requirements corresponding to a certain beam vary greatly, then multiple periodic SSB configurations can be set on that beam.

[0166] This application does not specifically limit the method by which a terminal device obtains the first configuration information. As an example, the first configuration information may be predefined by a protocol, and the terminal device can obtain the first configuration information from the protocol. As another example, the first configuration information may be configured by a network device, and the network device can send the first configuration information to the terminal device. See also... Figure 5 In step S505, the network device may send the first configuration information to the terminal device.

[0167] See also Figure 5 In step S520, the terminal device receives an SSB sent by the network device based on one or more periodic SSB configurations. Correspondingly, the network device can send SSBs to the terminal device based on one or more periodic SSB configurations. The network device can send SSBs via broadcast. For example, the SSB can be carried in a system message.

[0168] In some implementations, the SSB transmission period is a combination of one or more periods. If the first configuration information includes an SSB configuration with one period, then the SSB transmission period is that period. If the first configuration information includes an SSB configuration with multiple periods, then the SSB transmission period is a combination of those multiple periods.

[0169] It should be noted that if the first configuration information includes SSB configurations for multiple periods, then the time unit where the SSB is located is the union of the time units where the SSB is located, determined according to the SSB configurations for multiple periods.

[0170] Combinations of multiple periods include series and / or superposition, which will be discussed in detail below.

[0171] In some implementations, the terminal device can determine the reception time and / or reception frequency of an SSB based on one or more periodic SSB configurations, and receive the SSB sent by the network device at the corresponding reception time and / or reception frequency. In some implementations, the network device can determine the transmission time and / or transmission frequency of an SSB based on one or more periodic SSB configurations, and send the SSB to the terminal device at the corresponding transmission time and / or transmission frequency.

[0172] The technical solution provided in this application embodiment allows the SSB transmission period to be a combination of one or more periods, meaning the SSB transmission period is a variable period. This allows the SSB transmission period to be flexibly adjusted according to actual needs, thereby meeting the needs of unbalanced terminal service distribution in NTN communication scenarios.

[0173] Taking the first configuration information as being related to the region where the terminal device is located as an example, this application embodiment can configure an SSB configuration that matches the region according to the service requirements of the region where the terminal device is located, so as not only to meet the service requirements of the terminal device in the region, but also to avoid wasting network resources.

[0174] Taking the first configuration information related to the beam as an example, the embodiments of this application can configure the SSB configuration that matches the beam according to the terminal service requirements corresponding to the beam, so as not only to meet the service requirements of the terminal device, but also to avoid wasting network resources.

[0175] In some embodiments, the first configuration information may further include first indication information, which can be used to indicate the transmission mode of the SSB, thereby enabling the terminal device to clearly understand the transmission mode of the SSB and receive the SSB according to the corresponding mode. Furthermore, indicating the transmission mode of the SSB through the first indication information can reduce the complexity for the terminal device to determine the SSB transmission mode. In some implementations, the terminal device can receive the SSB according to the transmission mode indicated by the first indication information; correspondingly, the network device can transmit the SSB according to the transmission mode indicated by the first indication information.

[0176] In some embodiments, the SSB transmission mode may include one or more of the following: a first mode, a second mode, and a third mode. For example, the SSB transmission mode may be the first mode. Alternatively, the SSB transmission mode may be the second mode. Alternatively, the SSB transmission mode may be the third mode. Alternatively, the SSB transmission mode may be a combination of the first and third modes. Alternatively, the SSB transmission mode may be a combination of the second and third modes. Alternatively, the SSB transmission mode may be a combination of the first, second, and third modes. The above combinations may include serialization and / or superposition. By setting multiple transmission modes, the flexibility of SSB transmission can be improved, further enhancing the compatibility of the SSB with communication scenarios where user service distribution is unbalanced.

[0177] The above sending modes will be described in detail below.

[0178] In some implementations, the first mode can be transmitted in a series of one or more cycles. A series transmission can be understood as one or more cycles executing alternately. In other words, the first mode can refer to executing the SSB configuration for one cycle first, and then executing the SSB configuration for the next cycle after that cycle is completed. The cycle formed by the series transmission of multiple cycles can be called the second cycle. The second cycle can also be called a super-cycle or a large cycle. One or more cycles can be called a small cycle. Figure 6 For example, T1 and T2 can be understood as small cycles, and the second cycle formed by concatenating T1 and T2 is a super-cycle or large cycle. Within a second cycle, the network device can send multiple SSBs, and the terminal device can receive multiple SSBs.

[0179] Assuming one or more cycles include T1, T2, and T3, where T1, T2, and T3 are three cycles of different lengths, the first mode can be a mode in which T1, T2, and T3 are executed alternately. This application does not specifically limit the order in which T1, T2, and T3 alternate. For example, the first mode can be sent in the order of executing T1 first, then T2, then T3, i.e., the first mode can be T1→T2→T3→T1→…, and so on. Another example is that the first mode can be sent in the order of executing T1 first, then T3, then T2, i.e., the first mode can be T1→T3→T2→T1→…, and so on. Yet another example is that the first mode can be sent in the order of executing T2 first, then T3, then T1, i.e., the first mode can be T2→T3→T1→T2→…, and so on. For example, the first pattern can be sent in the order of executing T2, then T1, then T3, that is, the first pattern can be T2→T1→T3→T2→…, and so on. For example, the first pattern can be sent in the order of executing T3, then T1, then T2, that is, the first pattern can be T3→T1→T2→T3→…, and so on. For example, the first pattern can be sent in the order of executing T3, then T2, then T1, that is, the first pattern can be T3→T2→T1→T3→…, and so on.

[0180] The following is combined with Figure 6 Let's take an example to illustrate the first mode. Figure 6 Two periods are shown, denoted as T1 and T2 respectively. The period length of T1 is 4 time units, and the number of periods of T1 is 2. The period length of T2 is 8 time units, and the number of periods of T2 is 2.

[0181] The time unit in this embodiment can be any type of time unit, as long as its granularity is smaller than that of a system frame. For example, the time unit can be a half-frame. A system frame can include two half-frames, namely the upper half-frame and the lower half-frame. In addition to half-frames, the time unit in this embodiment can also be other types of time units, such as milliseconds (ms). The meaning of time units will be similar in the following text.

[0182] exist Figure 6 In the illustrated scheme, the terminal device first receives SSBs with a period of T1. After receiving two SSBs, it switches to receiving SSBs with a period of T2. After receiving two SSBs with a period of T2, it switches back to receiving SSBs with a period of T1, and so on. Correspondingly, the network device can first send SSBs with a period of T1. After sending two SSBs, it switches to sending SSBs with a period of T2. After sending two SSBs with a period of T2, it switches back to receiving SSBs with a period of T1, and so on.

[0183] In some implementations, the second mode can be transmitted in a manner that overlaps one or more cycles. In other words, these cycles can be executed independently or synchronously. Alternatively, the SSB configurations of these cycles do not have a specific execution order and can be executed independently according to their respective cycles.

[0184] The following is combined with Figure 7 The second mode will be illustrated with an example. Figure 7 Two periods are shown, denoted as T1 and T2. T1 has a period length of 4 time units, and T2 has a period length of 8 time units. The two periods are superimposed to form... Figure 7 The sending mode is shown.

[0185] Figure 7 As shown in Figure (a), after the two periods are superimposed, the transmission positions of the SSB do not overlap. Figure 7 As shown in Figure (b), the transmission positions of the SSB overlap after the two periods are superimposed. At the overlapping position, the terminal device only needs to receive the SSB once, and correspondingly, the network device only needs to transmit the SSB once.

[0186] In some implementations, the third mode can be a combination of the first and second modes; that is, the third mode can be a combination of the first and second modes. This application does not specifically limit the combination of the first and second modes; different combinations of the first and second modes will result in different third modes. Combination methods may include superposition and / or series connection.

[0187] As an example, the third mode can be a pattern formed by superimposing the first and second modes. The following section combines... Figure 8 The third mode will be illustrated with an example. Figure 8 Two scenarios for the third mode are shown.

[0188] Figure 8 Figure (a) illustrates a third mode scenario. Figure 8 In Figure (a), the transmission position of the SSB in the third mode is the same as that of the SSB in the second mode, that is, the transmission frequency of the SSB in the third mode is the same as that of the SSB in the second mode.

[0189] Figure 8 Figure (b) illustrates another third mode scenario. Figure 8 In Figure (b), the transmission frequency of the SSB in the third mode is higher than that in both the second and first modes. Therefore, by superimposing the transmission modes, the transmission frequency of the SSB can be increased.

[0190] In some implementations, the SSB transmission mode can be a combination of two or three of the first, second, and third modes. The mode combining the first, second, and third modes will be referred to as the fourth mode, the mode combining the first and third modes as the fifth mode, and the mode combining the second and third modes as the sixth mode.

[0191] The following is combined Figure 9 and Figure 10 An example will be given to illustrate the fourth mode.

[0192] Figure 9 The fourth mode shown can be understood as a series of the first mode → second mode → third mode, or the second mode → third mode → first mode, or the third mode → first mode → second mode.

[0193] See Figure 9 Terminal devices can first receive SSBs in the first mode, then in the second mode, and then in the third mode. Correspondingly, network devices can first send SSBs in the first mode, then in the second mode, and then in the third mode.

[0194] It should be noted that since the first, second, and third modes are executed alternately, therefore, Figure 9 The illustrated scheme can also be understood as follows: the terminal device first receives the SSB in the second mode, then in the third mode, and then in the first mode; or, it can be understood as the terminal device first receives the SSB in the third mode, then in the first mode, and then in the second mode. The network side is similar, and for simplicity, will not be elaborated further.

[0195] exist Figure 9 In Figure (a), the first, second, and third modes are not offset at the mode switching positions. Figure 9 In Figure (b), the first mode, the second mode, and the third mode are offset at the mode switching positions.

[0196] Figure 10 Another fourth mode is shown. Figure 10 The fourth mode shown can be understood as a series of the second mode → the first mode → the third mode, or a series of the first mode → the third mode → the second mode, or a series of the third mode → the second mode → the first mode.

[0197] See Figure 10Terminal devices can first receive SSBs in the second mode, then in the first mode, and then in the third mode. Correspondingly, network devices can first send SSBs in the second mode, then in the first mode, and then in the third mode.

[0198] It should be noted that since the first, second, and third modes are executed alternately, therefore, Figure 10 The illustrated scheme can also be understood as follows: the terminal device first receives the SSB in the first mode, then in the third mode, and then in the second mode; or, it can be understood as the terminal device first receives the SSB in the third mode, then in the second mode, and then in the first mode. The network side is similar, and for simplicity, it will not be elaborated further.

[0199] exist Figure 10 In Figure (a), the first, second, and third modes are not offset at the mode switching positions. Figure 10 In Figure (b), the first mode, the second mode, and the third mode are offset at the mode switching positions.

[0200] It should be noted that the above description illustrates two cases: one with offset and one without offset at the mode switching position. The embodiments of this application are not limited to this. For example, for multiple modes, some modes have offsets at the switching position, while others do not. For instance, taking... Figure 9 Taking the fourth mode as an example, the first and second modes have an offset at the mode switching position, while the second and third modes do not have an offset at the mode switching position.

[0201] The following is combined Figure 11 Let's take the fifth mode as an example. The fifth mode can be understood as a series of the first mode → the third mode, or it can be understood as a series of the third mode → the first mode.

[0202] See Figure 11 Terminal devices can first receive SSBs in the first mode and then in the third mode. Correspondingly, network devices can first send SSBs in the first mode and then in the third mode.

[0203] It should be noted that since the first mode and the third mode are executed alternately, therefore, Figure 11 The illustrated scheme can also be understood as follows: the terminal device first receives the SSB in the third mode, and then receives the SSB in the first mode. The network side is similar, and for the sake of simplicity, it will not be described in detail.

[0204] exist Figure 11 In Figure (a), the first mode and the third mode are not offset at the mode switching position. Figure 11 In Figure (b), the first mode and the third mode are offset at the mode switching position.

[0205] The following is combined with Figure 12 Let's take the sixth mode as an example. The sixth mode can be understood as a series of the second mode → the third mode, or it can be understood as a series of the third mode → the second mode.

[0206] See Figure 12 Terminal devices can first receive SSBs in the second mode and then in the third mode. Correspondingly, network devices can first send SSBs in the second mode and then in the third mode.

[0207] It should be noted that, since the second and third modes are executed alternately, Figure 12 The illustrated scheme can also be understood as follows: the terminal device first receives the SSB in the third mode, and then receives the SSB in the second mode. The network side is similar, and for the sake of simplicity, it will not be described in detail.

[0208] exist Figure 12 In Figure (a), the second and third modes are not offset at the mode switching positions. Figure 12 In Figure (b), the second and third modes are offset at the mode switching positions.

[0209] Figures 9-12 This describes the combination of multiple modes in a series manner. However, the embodiments of this application are not limited to this. Multiple modes can also be combined in a superposition or superposition + series manner.

[0210] from Figures 9-12 As can be seen from the scheme shown, when the network device sends SSB in the first mode, the SSB transmission frequency is the lowest, and when the network device sends SSB in the third mode, the SSB transmission frequency is the highest.

[0211] The solution in this application embodiment can generate new modes by combining different modes, thereby eliminating the need to adjust the basic modes (such as the first mode, the second mode, etc.) to adjust the SSB transmission frequency, thus simplifying the operation of adjusting the SSB transmission frequency.

[0212] It should be noted that the transmission frequency in the embodiments of this application can also be replaced by the transmission density.

[0213] In some embodiments, the configuration parameters included in the first configuration information may differ for different transmission modes. The following detailed explanation of the configuration parameters included in the first configuration information uses the first mode and the second mode as examples.

[0214] In some implementations, taking the SSB transmission mode including the first mode as an example, assuming that one or more cycles include the first cycle, the first configuration information may include one or more of the following parameters: a first parameter, a second parameter, a first offset, and a second offset. The first cycle can be any one of the one or more cycles. In some implementations, each of the one or more cycles can be configured with the above parameters. The above parameters are described in detail below.

[0215] The first parameter can be used to indicate the period length of the first type of period. The first parameter can be, for example, T. Figure 6 For example, the period length of T1 is 4 time units, and the period length of T2 is 8 time units.

[0216] The second parameter can be used to indicate the duration of the first cycle within the second cycle. The duration of the first cycle can also be understood as the duration for which the SSB configuration of the first cycle is executed continuously. Figure 6 For example, the duration of T1 is 8 time units, and the duration of T2 is 16 time units.

[0217] This application does not limit the specific content of the second parameter in its embodiments. For example, the second parameter can be the number of periods. Figure 6 For example, T1 has 2 cycles, and T2 has 2 cycles. Indicating the duration of the first cycle by the number of cycles reduces the overhead of the indication signaling. Alternatively, the second parameter can be the duration. Directly indicating the duration reduces the computational overhead of the terminal device. The terminal device can receive SSBs sent by the network device within this duration, and correspondingly, the network device can send SSBs to the terminal device within this duration. Furthermore, the second parameter can also be a timer, which controls the effective duration of the SSB configuration for the first cycle. The timer's duration is the duration of the first cycle. The timer will be discussed in detail below.

[0218] The first offset can be used to indicate the offset of the starting position of the first type of cycle, or in other words, the first offset can be used to determine the starting position of the first type of cycle. As mentioned earlier, the first mode is a mode formed by one or more cycles connected in series, therefore, there will be a connection of two different cycles. The two different cycles can be connected without gaps or with gaps at the connection point. A connection with gaps means that there is an offset of the starting position, which is the first offset.

[0219] by Figure 6 For example, Figure 6In the scheme shown in Figure (a), the ending position of T1 is the ending position a, which is also the starting position of T2. The ending position of T2 is the ending position b, which is also the starting position of the next T1. Therefore, T1 and T2 have no offset at the connection point, or in other words, T1 has no offset from its starting position, and T2 has no offset from its starting position.

[0220] Figure 6 In the schemes shown in Figures (b) and (c), the end position of T1 is end position a, and the start position of T2 is start position e. There is a time unit interval between end position a and start position e. Therefore, there is a time unit offset (i.e., offset a) between T2 and T1, or in other words, there is a time unit offset in the start position of T2. The end position of T2 is end position b, and the start position of the next T1 is start position f. There is a time unit interval between start position f and end position b. Therefore, there is also a time unit offset (i.e., offset b) between T1 and T2, or in other words, there is a time unit offset in the start position of T1.

[0221] It should be noted that the first offset corresponding to different types of periods can be the same or different; in other words, Figure 6 The offsets a and b shown may be equal or unequal, and this application does not specifically limit this.

[0222] The second offset can be used to indicate the offset of the starting position of the second type of cycle, or in other words, the second offset can be used to determine the starting position of the second type of cycle. The connection between two second type of cycles can be seamless or spaced out. A spaced-out connection implies the existence of an offset of the starting position.

[0223] The following is combined Figure 6 Please provide an explanation. Figure 6 In the schemes shown in Figures (a) and (b), the ending position b is the ending position of the second type of cycle and also the starting position of the next second type of cycle. Therefore, Figure 6 Figures (a) and (b) show the second case where there is no second offset in the cycle.

[0224] Figure 6 In the scheme shown in Figure (c), the end position b is the end position of the second type of cycle, and the start position g is the start position of the next second type of cycle. The end position b and the start position g are separated by 2 time units. Therefore, there is a 2-time-unit offset in the start position of the second type of cycle.

[0225] In some implementations, the period length of the second type of period can be determined based on the period lengths of one or more periods (smaller periods) within the second type of period and the first offset corresponding to one or more periods. The formula for calculating the period length of the second type of period can be as follows:

[0226]

[0227] Among them, T dura This refers to the period length of the second type of period. The duration of the i-th period in one or more periods. It represents the offset of the i-th period in one or more periods, where mod represents the modulo operation, M is a positive integer, and i is an integer greater than or equal to 0 and less than or equal to M-1.

[0228] If none of the one or more cycles corresponds to a first offset, then the period length of the second cycle is the sum of the period lengths of the one or more cycles. In this case, the formula for calculating the period length of the second cycle is as follows:

[0229]

[0230] Among them, T dura This refers to the period length of the second type of period. Let represent the duration of the i-th period in one or more periods, where mod represents the modulo operation, M is a positive integer, and i is an integer greater than or equal to 0 and less than or equal to M-1.

[0231] In some implementations, the starting position of the second cycle can be determined based on one or more of the following parameters: the cycle length of the second cycle and a second offset. If the second cycle has a corresponding second offset, the starting position of the second cycle is determined based on the cycle length of the second cycle and the second offset. If the second cycle does not have a corresponding second offset, the starting position of the second cycle can be determined based on the cycle length of the second cycle.

[0232] If the second type of period has a corresponding second offset, then the formula for calculating the starting position of the second type of period can be as follows:

[0233] (n f ·L+n hf -T offset )modT dura =0 (Formula 3)

[0234] Where, n f The system frame number is where the second type of cycle begins, L is the number of time units contained in a single system frame, and n is the system frame number. hf T represents the time unit number within the system frame where the starting position of the second type of cycle is located.offset For the second offset, T dura This refers to the period length of the second type of period.

[0235] Combining formula (3) with formula (1), we can obtain the following formula:

[0236]

[0237] Where, n f The system frame number is where the second type of cycle begins, L is the number of time units contained in a single system frame, and n is the system frame number. hf T represents the time unit number within the system frame where the starting position of the second type of cycle is located. offset For the second offset, M is the total number of one or more cycles. The duration of the i-th period in one or more periods. It represents the offset of the i-th period in one or more periods, where mod represents the modulo operation, M is a positive integer, and i is an integer greater than or equal to 0 and less than or equal to M-1.

[0238] Combining formula (3) with formula (2), we can obtain the following formula:

[0239]

[0240] Where, n f The system frame number is where the second type of cycle begins, L is the number of time units contained in a single system frame, and n is the system frame number. hf T represents the time unit number within the system frame where the starting position of the second type of cycle is located. offset For the second offset, M is the total number of one or more cycles. Let represent the duration of the i-th period in one or more periods, where mod represents the modulo operation, M is a positive integer, and i is an integer greater than or equal to 0 and less than or equal to M-1.

[0241] In some embodiments, when i = 0, the starting position of the i-th period is the starting position of the second period. That is, the starting position of the 0th period is the same as the starting position of the second period. Figure 6 For example, the 0th cycle is T1, and the starting position of T1 is the starting position of the second cycle.

[0242] In some embodiments, when i≥1, This is the offset of the starting position of the i-th cycle relative to the ending position of the (i-1)-th cycle. See also Figure 6 Taking the 0th period as T1 and the 1st period as T2 as an example, This is the offset value of the starting position of T1 relative to the ending position of T0. Figure 6 shown The value is 1.

[0243] In some implementations, taking the SSB transmission mode including a second mode as an example, assuming that one or more cycles include a third cycle, the first configuration information may include one or more of the following parameters: a third parameter and a third offset. The third cycle can be any one of the one or more cycles. In some implementations, each of the one or more cycles can be configured with the above parameters. The above parameters are described in detail below.

[0244] The third parameter can be used to indicate the period length of the third type of period. For example, the third parameter can be T. Figure 7 For example, the period length of T1 is 4, and the period length of T2 is 8.

[0245] The third offset can be used to indicate the offset of the starting position of the third type of cycle; in other words, the third offset can be used to determine the starting position of the third type of cycle. As shown earlier, in the second mode, one or more cycles are independent, and the starting positions of different types of cycles can be the same or different. The starting position of each cycle can be determined based on its corresponding third offset. Figure 7 For example, in Figure 7 In Figure (a), the third offset corresponding to T1 is 0, and the third offset corresponding to T2 is 2 time units. Figure 7 In Figure (b), the third offsets corresponding to T1 and T2 are both 0.

[0246] The starting position of the third cycle can be determined based on the cycle length and / or the third offset of the third cycle. If the third cycle has a corresponding third offset, the starting position of the third cycle is determined based on the cycle length and the third offset of the third cycle. If the third cycle does not have a corresponding third offset, the starting position of the third cycle can be determined based on the cycle length of the third cycle.

[0247] If the third type of period has a corresponding third offset, then the formula for calculating the starting position of the third type of period can be as follows:

[0248]

[0249] Where, n fj Let n be the system frame number where the j-th cycle begins, L be the number of time units contained in a single system frame, and n be the system frame number. hfj Let j be the time unit number within the system frame where the starting position of the j-th cycle is located. T is the offset of the starting position of the j-th cycle. jLet be the period length of the j-th type of period, where mod represents the modulo operation, and j is 0 or a positive integer.

[0250] If there is no corresponding third offset for the third type of period, the formula for calculating the starting position of the third type of period can be as follows:

[0251] (n fj ·L+n hfj )modT j =0 (Formula 7)

[0252] Where, n fj Let n be the system frame number where the j-th cycle begins, L be the number of time units contained in a single system frame, and n be the system frame number. hfj T is the time unit index within the system frame where the starting position of the j-th period is located. j Let be the period length of the j-th type of period, where mod represents the modulo operation, and j is 0 or a positive integer.

[0253] It should be noted that the j-th type of period mentioned above belongs to the third type of period.

[0254] For the second mode, after multiple cycles are superimposed, the transmission positions of the SSB may or may not overlap; this application does not specifically limit this in its embodiments. Figure 7 Taking Figure (a) as an example, after T1 and T2 are superimposed, the transmission positions of the SSB do not overlap. Figure 7 Taking Figure (b) as an example, after T1 and T2 are superimposed, the transmission positions of the SSB overlap. At the overlapping position, the network device can transmit the SSB only once; correspondingly, at the overlapping position, the terminal device can also receive the SSB only once.

[0255] In some embodiments, the first configuration information may further include a timer, which can be used to control the duration of one or more periodic SSB configurations. When the timer starts, the SSB configuration corresponding to the timer becomes effective; when the timer expires, the SSB configuration corresponding to the timer becomes invalid.

[0256] When an SSB configuration is active, network devices can send SSBs based on the active SSB configuration, and terminal devices can receive SSBs based on the active SSB configuration. When an SSB configuration is inactive, network devices will not send SSBs based on that SSB configuration, and terminal devices will not receive SSBs based on that SSB configuration. This application embodiment controls the SSB configuration used by terminal devices and network devices through the active SSB configuration, which helps to improve the flexibility of terminal devices and network devices in using SSB configuration.

[0257] It should be noted that when a network device sends an SSB, it means that the network device sends an SSB in a corresponding area at a specified time unit.

[0258] This application embodiment can flexibly control the effectiveness and ineffectiveness of SSB configuration by adjusting the start state and / or duration of the timer. This means that this application embodiment can adjust the transmission time and frequency of SSB by changing the start state and / or duration of the timer according to actual needs, so that the transmission cycle of SSB is more in line with the actual needs of the terminal device, and can meet the scenarios of unbalanced distribution and dynamic changes in user service needs.

[0259] This application does not specifically limit the configuration method of the timer. As an example, a corresponding timer can be set for each period to control the invalidation and activation of the SSB configuration for that period. As another example, a corresponding timer can be set for at least two periods, which can be used to control the activation and invalidation of the SSB configuration for the at least two periods. The at least two periods here can be a part of the multiple periods mentioned above, or it can be all of the multiple periods mentioned above; this application does not specifically limit this. The SSB configuration corresponding to a timer will also be referred to as a set of SSB configurations below.

[0260] In some embodiments, the one or more periodic SSB configurations mentioned above may include one or more SSB configurations. If the first configuration information includes a one-period SSB configuration, then that one-period SSB configuration is considered one SSB configuration. If the first configuration information includes multiple periodic SSB configurations, then those multiple periodic SSB configurations may include one or more SSB configurations.

[0261] If multiple-period SSB configurations include a single SSB configuration, then the single SSB configuration includes all SSB configurations in the first configuration information. If multiple-period SSB configurations include multiple sets of SSB configurations, the number of multiple-period SSB configurations can be the same as or different from the number of multiple sets of SSB configurations. If the number of multiple-period SSB configurations is the same as the number of multiple sets of SSB configurations, then the single SSB configuration includes an SSB configuration of one period. If the number of multiple-period SSB configurations is different from the number of multiple sets of SSB configurations, such as the number of multiple-period SSB configurations being greater than the number of multiple sets of SSB configurations, then at least one of the multiple sets of SSB configurations includes SSB configurations of at least two periods.

[0262] It should be noted that the number of SSB configurations included in different SSB configurations may be the same or different, and this application does not specifically limit this.

[0263] In some embodiments, the first configuration information may include one or more timers, wherein the one or more timers are used to control the effective duration of one or more SSB configurations. The effective duration of the SSB configuration is the duration of the timer corresponding to the SSB configuration.

[0264] One or more timers correspond to one or more SSB configurations. If the first configuration information includes one timer and one SSB configuration, then the timer corresponds to that SSB configuration. If the first configuration information includes multiple timers and multiple SSB configurations, then the multiple timers correspond to multiple SSB configurations, and one timer is used to control the duration of effectiveness of one SSB configuration.

[0265] This application embodiment uses a timer to control the activation and deactivation of a set of SSB configurations, thereby flexibly adjusting the duration and / or activation status of the timer according to actual needs to change the transmission time and frequency of the SSB. This makes the transmission cycle of the SSB more compatible with the actual needs of the terminal device, and can meet the needs of scenarios with unbalanced distribution and dynamic changes in user service requirements.

[0266] In some embodiments, the number of SSB configurations included in a set of SSB configurations may vary depending on the mode. As an example, if the SSB transmission mode is a first mode, then a set of SSB configurations may include one periodic SSB configuration. As another example, if the SSB transmission mode includes a second mode, then a set of SSB configurations may include one periodic SSB configuration, or it may include at least two periodic SSB configurations. For different transmission modes, embodiments of this application specify the number of SSB configurations included in a set of SSB configurations under each transmission mode, such that the set of SSB configurations matches the SSB transmission mode.

[0267] The following section provides a detailed description of the timer's startup state for different sending modes.

[0268] If the SSB's transmission mode is the first mode, then at any given time, only one of the one or more timers will be in the started state.

[0269] If the SSB transmission mode is mode 2, then at any given time, one or more timers can be active. For example, if an SSB configuration includes one periodic SSB configuration, then at least two timers can be active at any given time. Conversely, if an SSB configuration includes multiple periodic SSB configurations, then at any given time, only one timer can be active, or at least two timers can be active.

[0270] If the SSB's transmission mode is the third mode, then at least two of the one or more timers are active at the same time. These at least two timers may include a first timer and a second timer. The first timer corresponds to the first mode, and the second timer corresponds to the second mode. In other words, the first timer is used to control the duration of the first mode, and the second timer is used to control the duration of the second mode.

[0271] For different modes, the embodiments of this application specify the start state of the timer or the number of timers started in each transmission mode, so that the start of the timer matches the transmission mode of the SSB.

[0272] It should be noted that, Figures 9-12 The execution time of each mode shown is only an example. The execution time of each mode can be flexibly adjusted according to actual needs. For example, the execution time of each mode can be adjusted by adjusting the duration of the timer. This application embodiment does not make specific limitations in this regard.

[0273] The technical solution provided in this application embodiment can flexibly switch between various modes by controlling the start state of the timer and / or controlling the number of timers started, which helps to reduce the complexity of mode switching operations.

[0274] Assuming only one timer is active at any given time, multiple timers can be active sequentially. That is, when one timer expires, the next timer starts; when the last timer expires, the first timer starts, and so on. The starting process for multiple timers is described below.

[0275] Assuming there are N sets of SSB configurations and N timers, the following conditions can be met: when the p-th timer starts, the p-th SSB configuration becomes effective; when the p-th timer expires, the p-th SSB configuration becomes ineffective. If p is less than N, the (p+1)-th SSB configuration becomes effective and the (p+1)-th timer starts. If p equals N, the N-th SSB configuration becomes ineffective, the 1st SSB configuration becomes effective, and the 1st timer starts. Here, N is a positive integer, and p is an integer greater than or equal to 1 and less than or equal to N.

[0276] This application embodiment can achieve the sequential execution of multiple SSB configurations by controlling the sequential start of multiple timers, thereby reducing the complexity of terminal devices receiving SSBs and reducing the complexity of network devices sending SSBs.

[0277] In some embodiments, the SSB can be transmitted in a manner that concatenates the first mode, the second mode, and the third mode, i.e., the fourth mode described above.

[0278] This application does not specify the cascading order of the first mode, the second mode, and the third mode in its embodiments. For example, the cascading order could be first mode → second mode → third mode, such as... Figure 9 As shown. For example, the sequence could be second mode → first mode → third mode, such as... Figure 10 As shown.

[0279] This application embodiment allows for the configuration of a corresponding timer for each mode. For example, multiple timers may include a third timer, a fourth timer, and a fifth timer. The third timer can be used to control the duration of the first mode's effect, the fourth timer can be used to control the duration of the second mode's effect, and the fifth timer can be used to control the duration of the third mode's effect.

[0280] This application embodiment uses three timers to control the effective duration of the three modes respectively, so that the three modes can be flexibly combined to realize flexible transmission of SSB.

[0281] Since the fourth mode is a series of the first, second, and third modes, only one of the three timers (the third, fourth, and fifth timers) is active at any given time, ensuring the alternating execution of the three modes and achieving the series connection of the three modes.

[0282] Taking the cascading sequence of Mode 1 → Mode 2 → Mode 3 as an example, when the third timer starts, Mode 1 is active, and network devices can send SSBs and terminal devices can receive SSBs in Mode 1. When the third timer expires, Mode 1 becomes invalid, the fourth timer starts, Mode 2 becomes active, and network devices can send and receive SSBs in Mode 2. When the fourth timer expires, Mode 2 becomes invalid, the fifth timer starts, Mode 3 becomes active, and network devices can send and receive SSBs in Mode 3. When the fifth timer expires, Mode 3 becomes invalid, the third timer starts, Mode 1 becomes active, and network devices send and receive SSBs in Mode 1, and so on.

[0283] Taking the cascading sequence of Mode 3 → Mode 2 → Mode 1 as an example, when the fifth timer starts, Mode 3 is active, and network devices can send SSBs and terminal devices can receive SSBs in Mode 3. When the fifth timer expires, Mode 3 becomes invalid, the fourth timer starts, and Mode 2 becomes active, allowing network devices to send and receive SSBs in Mode 2. When the fourth timer expires, Mode 2 becomes invalid, the third timer starts, and Mode 1 becomes active, allowing network devices to send and receive SSBs in Mode 1. When the third timer expires, Mode 1 becomes invalid, the fifth timer starts, and Mode 3 becomes active, allowing network devices to send and receive SSBs in Mode 3, and so on.

[0284] In some embodiments, the terminal device may receive an SSB sent by the network device based on an effective SSB configuration. In some embodiments, the terminal device and / or the network device may determine the effective SSB configuration based on one or more of the following: one or more periodic SSB configurations, one or more timers.

[0285] As an example, the terminal device and / or network device can determine the effective SSB configuration based on one or more periodic SSB configurations. For instance, if the first configuration information does not include information about one or more timers, the terminal device and / or network device can determine the effective SSB configuration based on one or more periodic SSB configurations. For example, if the SSB transmission mode includes a first mode, the terminal device and / or network device can determine the effective SSB configuration based on a second parameter.

[0286] As another example, the terminal device and / or network device can determine the effective SSB configuration based on one or more timers. For instance, if the first configuration information includes information about one or more timers, the terminal device and / or network device can determine the effective SSB configuration based on one or more timers. The method of determining the effective SSB configuration based on timers can be found in the preceding description, and will not be repeated here for brevity.

[0287] As another example, terminal devices and / or network devices can determine the effective SSB configuration based on one or more periodic SSB configurations and one or more timers. If the effective SSB configuration determined based on the SSB configuration differs from the effective SSB configuration determined based on the timer, the actual effective SSB configuration can be the intersection of the effective SSB configurations determined by the two methods.

[0288] In some embodiments, the terminal device can obtain multiple configuration information. The first configuration information can be one of the multiple configuration information. The multiple configuration information are associated with multiple regions, and / or the multiple regions are associated with multiple beams.

[0289] The terminal device can determine the first configuration information from multiple configuration information based on the region where the terminal device is located and the association between multiple configuration information and multiple beams and / or multiple regions. The first configuration information is the configuration information corresponding to the region where the terminal device is located.

[0290] The terminal device can determine the first configuration information corresponding to the region where the terminal device is located based on the association between multiple configuration information and multiple beams and / or multiple regions, so that the determined first configuration information can match the region where the terminal device is located and meet the service requirements of the terminal device.

[0291] For ease of description, the association between multiple configuration information and multiple beams and / or multiple regions will be referred to as the first association relationship in the following text.

[0292] For example, assuming the first association is as shown in Table 1, with region 1 corresponding to configuration information 1, region 2 corresponding to configuration information 2, and region 3 corresponding to configuration information 3, the terminal device can determine the first configuration information corresponding to its region. If the terminal device is located in region 2, then the terminal device can use configuration information 2 as the first configuration information. The terminal device can receive SSB based on configuration information 2, and correspondingly, the network device can send SSB in region 2 based on configuration information 2.

[0293] Table 1

[0294] area Configuration information Area 1 Configuration Information 1 Area 2 Configuration Information 2 Area 3 Configuration Information 3

[0295] After receiving the SSB, the terminal device can perform operations such as cell selection, time and frequency synchronization, and RRM measurement based on the SSB. This application embodiment does not specifically limit these operations.

[0296] It should be noted that the transmission mode in the embodiments of this application, including the first mode, can mean that the transmission mode only includes the first mode (i.e., the transmission mode is the first mode), or it can also mean that the transmission mode not only includes the first mode, but may also include other modes (such as the second mode). Similarly, the transmission mode in the embodiments of this application, including the second mode, can mean that the transmission mode only includes the second mode (i.e., the transmission mode is the second mode), or it can also mean that the transmission mode not only includes the second mode, but may also include other modes (such as the first mode).

[0297] The above text combined Figures 1-12 The method embodiments of this application are described in detail below, in conjunction with... Figures 13-15This section describes the apparatus embodiments of this application. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments; therefore, any parts not described in detail can be found in the foregoing method embodiments.

[0298] Figure 13 This is a schematic block diagram of a communication device provided in an embodiment of this application. Figure 13 As shown, the communication device 1300 includes an acquisition module 1310 and a receiving module 1320.

[0299] In one possible implementation, the device 1300 can be used to perform the steps described above by the terminal device.

[0300] The acquisition module 1310 is used to acquire first configuration information, which includes one or more periodic synchronization signal / physical broadcast channel block (SSB) configurations.

[0301] The receiving module 1320 is used to receive an SSB sent by a network device based on the SSB configuration of one or more periods, wherein the transmission period of the SSB is a period composed of one or more periods.

[0302] In some possible implementations, the transmission mode of the SSB belongs to one or more of the following modes: a first mode; a second mode; a third mode, wherein the third mode is a combination of the first mode and the second mode; wherein the first mode is to transmit in a manner that is serially connected according to one or more of the aforementioned cycles, and the second mode is to transmit in a manner that is superimposed according to one or more of the aforementioned cycles.

[0303] In some possible implementations, the transmission mode of the SSB includes the first mode, the one or more cycles include a first cycle, and the first configuration information further includes one or more of the following parameters: a first parameter, used to indicate the cycle length of the first cycle; a second parameter, used to indicate the duration of the first cycle within the second cycle; a first offset, used to indicate the offset of the starting position of the first cycle; and a second offset, used to indicate the offset of the starting position of the second cycle; wherein the second cycle is a cycle formed by concatenating the one or more cycles.

[0304] In some possible implementations, the starting position of the second type of cycle satisfies the following formula:

[0305]

[0306] Where, n f The system frame number is where the second type of period begins, L is the number of time units contained in a single system frame, and n is the system frame number. hfT represents the time unit number within the system frame where the starting position of the second type of period is located. offset The second offset is M, where M is the total number of the one or more cycles. The duration of the i-th period among the one or more periods. The offset is the i-th period among the one or more periods, where mod represents the modulo operation, M is a positive integer, and i is an integer greater than or equal to 0 and less than or equal to M-1.

[0307] In some possible implementations, when i = 0, the starting position of the i-th cycle is the starting position of the second cycle; when i ≥ 1, It is the offset value of the starting position of the i-th cycle relative to the ending position of the (i-1)-th cycle.

[0308] In some possible implementations, the SSB transmission mode includes the second mode, the one or more cycles include a third cycle, and the first configuration information further includes one or more of the following parameters: a third parameter, used to indicate the cycle length of the third cycle; and a third offset, used to indicate the offset of the starting position of the third cycle.

[0309] In some possible implementations, the starting position of the j-th period among the one or more periods satisfies the following formula:

[0310]

[0311] Where, n fj Let n be the system frame number where the j-th cycle begins, L be the number of time units contained in a single system frame, and n be the system frame number. hfj Let j be the time unit number within the system frame where the starting position of the j-th cycle is located. T is the offset of the starting position of the j-th cycle. j Let be the period length of the j-th type of period, where mod represents the modulo operation, and j is 0 or a positive integer.

[0312] In some possible implementations, the one or more periodic SSB configurations include one or more sets of SSB configurations, one of the sets of SSB configurations includes one or more periodic SSB configurations, and the first configuration information also includes one or more timers, the one or more timers being used to control the effective duration of the one or more sets of SSB configurations.

[0313] In some possible implementations, if the transmission mode of the SSB is the first mode, then the set of SSB configurations includes one periodic SSB configuration; or if the transmission mode of the SSB includes the second mode, then the set of SSB configurations includes at least two periodic SSB configurations.

[0314] In some possible implementations, the one or more timers satisfy any of the following conditions: if the SSB transmission mode is the first mode, then at the same time, only one of the one or more timers is in the started state; if the SSB transmission mode is the second mode, then at the same time, one or at least two of the one or more timers are in the started state; if the SSB transmission mode is the third mode, then at the same time, at least two of the one or more timers are in the started state, the at least two timers including a first timer and a second timer, the first timer corresponding to the first mode and the second timer corresponding to the second mode.

[0315] In some possible implementations, the number of one or more SSB configurations is N, and the number of one or more timers is N. The one or more SSB configurations and the one or more timers satisfy the following conditions: when the p-th timer starts, the p-th SSB configuration becomes effective; when the p-th timer expires, the p-th SSB configuration becomes ineffective. If p is less than N, then the (p+1)-th SSB configuration becomes effective, and the (p+1)-th timer is started. If p equals N, then the N-th SSB configuration becomes ineffective, the 1st SSB configuration becomes effective, and the 1st timer is started. Here, N is a positive integer, and p is an integer greater than or equal to 1 and less than or equal to N.

[0316] In some possible implementations, the SSB is transmitted in a serial manner according to the first mode, the second mode and the third mode. The plurality of timers include a third timer, a fourth timer and a fifth timer. The third timer is used to control the effective duration of the first mode, the fourth timer is used to control the effective duration of the second mode and the fifth timer is used to control the effective duration of the third mode.

[0317] In some possible implementations, the multiple timers satisfy the following condition: at any given time, only one of the third, fourth, and fifth timers is in the active state.

[0318] In some possible implementations, receiving SSBs sent by network devices based on the one or more periodic SSB configurations includes: determining an effective SSB configuration based on one or more of the following: the one or more periodic SSB configurations, the one or more timers; and receiving SSBs sent by the network devices based on the effective SSB configuration.

[0319] In some possible implementations, the first configuration information may further include first indication information, which is used to indicate the transmission mode of the SSB.

[0320] In some possible implementations, the configuration of one or more cycles of SSB is related to the area where the beam and / or terminal equipment is located.

[0321] In some possible implementations, the acquisition module 1310 is further configured to: acquire multiple configuration information, the multiple configuration information being associated with multiple beams and / or multiple regions respectively; the device 1300 further includes a determination module, configured to determine the first configuration information from the multiple configuration information based on the region where the terminal device is located and the association relationship between the multiple configuration information and the multiple beams and / or the multiple regions.

[0322] In some possible implementations, the acquisition module 1310 is used to: receive the first configuration information sent by the network device.

[0323] In some possible implementations, the first configuration information is carried in a System Information Block (SIB) message or a Radio Resource Control (RRC) signaling message.

[0324] In some possible implementations, the first configuration information is predefined by the protocol.

[0325] Figure 14 This is a schematic block diagram of a communication device provided in an embodiment of this application. Figure 14 As shown, the communication device 1400 includes a first transmitting module 1410 and a second transmitting module 1420.

[0326] In one possible implementation, the device 1400 can be used to perform the steps described above that are executed by the network device.

[0327] The first sending module 1410 is used to send first configuration information to the terminal device, the first configuration information including one or more periodic synchronization signal / physical broadcast channel block (SSB) configurations.

[0328] The second sending module 1420 is used to send an SSB to the terminal device based on the SSB configuration of one or more periods, wherein the sending period of the SSB is a period composed of one or more periods.

[0329] In some possible implementations, the transmission mode of the SSB belongs to one or more of the following modes: a first mode; a second mode; a third mode, wherein the third mode is a combination of the first mode and the second mode; wherein the first mode is to transmit in a manner that is serially connected according to one or more of the aforementioned cycles, and the second mode is to transmit in a manner that is superimposed according to one or more of the aforementioned cycles.

[0330] In some possible implementations, the transmission mode of the SSB includes the first mode, the one or more cycles include a first cycle, and the first configuration information further includes one or more of the following parameters: a first parameter, used to indicate the cycle length of the first cycle; a second parameter, used to indicate the duration of the first cycle within the second cycle; a first offset, used to indicate the offset of the starting position of the first cycle; and a second offset, used to indicate the offset of the starting position of the second cycle; wherein the second cycle is a cycle formed by concatenating the one or more cycles.

[0331] In some possible implementations, the starting position of the second type of cycle satisfies the following formula:

[0332]

[0333] Where, n f The system frame number is where the second type of period begins, L is the number of time units contained in a single system frame, and n is the system frame number. hf T represents the time unit number within the system frame where the starting position of the second type of period is located. offset The second offset is M, where M is the total number of the one or more cycles. The duration of the i-th period among the one or more periods. The offset is the i-th period among the one or more periods, where mod represents the modulo operation, M is a positive integer, and i is an integer greater than or equal to 0 and less than or equal to M-1.

[0334] In some possible implementations, when i = 0, the starting position of the i-th cycle is the starting position of the second cycle; when i ≥ 1, It is the offset value of the starting position of the i-th cycle relative to the ending position of the (i-1)-th cycle.

[0335] In some possible implementations, the SSB transmission mode includes the second mode, the one or more cycles include a third cycle, and the first configuration information further includes one or more of the following parameters: a third parameter, used to indicate the cycle length of the third cycle; and a third offset, used to indicate the offset of the starting position of the third cycle.

[0336] In some possible implementations, the starting position of the j-th period among the one or more periods satisfies the following formula:

[0337]

[0338] Where, n fj Let n be the system frame number where the j-th cycle begins, L be the number of time units contained in a single system frame, and n be the system frame number. hfj Let j be the time unit number within the system frame where the starting position of the j-th cycle is located. T is the offset of the starting position of the j-th cycle. j Let be the period length of the j-th type of period, where mod represents the modulo operation, and j is 0 or a positive integer.

[0339] In some possible implementations, the one or more periodic SSB configurations include one or more sets of SSB configurations, one of the sets of SSB configurations includes one or more periodic SSB configurations, and the first configuration information also includes one or more timers, the one or more timers being used to control the effective duration of the one or more sets of SSB configurations.

[0340] In some possible implementations, if the transmission mode of the SSB is the first mode, then the set of SSB configurations includes one periodic SSB configuration; or if the transmission mode of the SSB includes the second mode, then the set of SSB configurations includes at least two periodic SSB configurations.

[0341] In some possible implementations, the one or more timers satisfy any of the following conditions: if the SSB transmission mode is the first mode, then at the same time, only one of the one or more timers is in the started state; if the SSB transmission mode is the second mode, then at the same time, one or at least two of the one or more timers are in the started state; if the SSB transmission mode is the third mode, then at the same time, at least two of the one or more timers are in the started state, the at least two timers including a first timer and a second timer, the first timer corresponding to the first mode and the second timer corresponding to the second mode.

[0342] In some possible implementations, the number of one or more SSB configurations is N, and the number of one or more timers is N. The one or more SSB configurations and the one or more timers satisfy the following conditions: when the p-th timer starts, the p-th SSB configuration becomes effective; when the p-th timer expires, the p-th SSB configuration becomes ineffective. If p is less than N, then the (p+1)-th SSB configuration becomes effective, and the (p+1)-th timer is started. If p equals N, then the N-th SSB configuration becomes ineffective, the 1st SSB configuration becomes effective, and the 1st timer is started. Here, N is a positive integer, and p is an integer greater than or equal to 1 and less than or equal to N.

[0343] In some possible implementations, the SSB is transmitted in a serial manner according to the first mode, the second mode and the third mode. The plurality of timers include a third timer, a fourth timer and a fifth timer. The third timer is used to control the effective duration of the first mode, the fourth timer is used to control the effective duration of the second mode and the fifth timer is used to control the effective duration of the third mode.

[0344] In some possible implementations, the multiple timers satisfy the following condition: at any given time, only one of the third, fourth, and fifth timers is in the active state.

[0345] In some possible implementations, sending an SSB to the terminal device based on the one or more periodic SSB configurations includes: determining an effective SSB configuration based on one or more of the following: the one or more periodic SSB configurations, the one or more timers; and sending an SSB to the terminal device based on the effective SSB configuration.

[0346] In some possible implementations, the first configuration information may further include first indication information, which is used to indicate the transmission mode of the SSB.

[0347] In some possible implementations, the one or more periodic SSB configurations are related to the beam and / or the area where the terminal device is located.

[0348] In some possible implementations, the device 1400 further includes a third transmitting module for transmitting multiple configuration information to the terminal device, the multiple configuration information being associated with multiple beams and / or multiple regions, and the multiple configuration information including first configuration information.

[0349] In some possible implementations, the first configuration information is carried in a System Information Block (SIB) message or a Radio Resource Control (RRC) signaling message.

[0350] It should be understood that devices 1300 and 1400 are embodied as functional modules. The term "module" here can refer to application-specific integrated circuits (ASICs), electronic circuits, processors (e.g., shared processors, proprietary processors, or group processors, etc.) and memories for executing one or more software or firmware programs, integrated logic circuits, and / or other suitable components supporting the described functions. In an alternative example, those skilled in the art will understand that device 1400 can be specifically a terminal device in the above embodiments, and device 1400 can be used to execute the various processes and / or steps corresponding to the terminal device in the above method embodiments. Device 1400 can be specifically a network device in the above embodiments, and device 1400 can be used to execute the various processes and / or steps corresponding to the network device in the above method embodiments. To avoid repetition, further details are omitted here.

[0351] The aforementioned device 1300 has the function of implementing the corresponding steps performed by the terminal device in the aforementioned method, and the aforementioned device 1400 has the function of implementing the corresponding steps performed by the network device in the aforementioned method. These functions can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the aforementioned functions.

[0352] In embodiments of this application, devices 1300 and 1400 may also be chips, such as a system-on-a-chip (SOC) or a modem. Correspondingly, the receiving module and the transmitting module may be the transceiver circuits of the chip, and are not limited herein.

[0353] Figure 15 This is a schematic structural diagram of a communication device according to an embodiment of this application. Figure 15 The dashed lines indicate that the unit or module is optional. The device 1500 can be used to implement the methods described in the above method embodiments. The device 1500 can be a chip, a terminal device, or a network device.

[0354] Apparatus 1500 may include one or more processors 1510. The processor 1510 may support apparatus 1500 in implementing the methods described in the preceding method embodiments. The processor 1510 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be other general-purpose processors, digital signal processors (DSPs), ASICs, field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0355] The apparatus 1500 may further include one or more memories 1520. The memories 1520 store a program that can be executed by the processor 1510, causing the processor 1510 to perform the methods described in the preceding method embodiments. The memories 1520 may be independent of the processor 1510 or integrated into the processor 1510.

[0356] The device 1500 may also include a transceiver 1530. The processor 1510 can communicate with other devices or chips via the transceiver 1530. For example, the processor 1510 can send and receive data with other devices or chips via the transceiver 1530.

[0357] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to a terminal device or network device provided in this application embodiment, and the program causes a computer to execute the methods performed by the terminal device or network device in the various embodiments of this application.

[0358] This application also provides a computer program product. The computer program product includes a program. This computer program product can be applied to a terminal device or network device provided in the embodiments of this application, and the program causes a computer to execute the methods performed by the terminal device or network device in the various embodiments of this application.

[0359] This application also provides a computer program. This computer program can be applied to the terminal device or network device provided in this application, and the computer program causes the computer to execute the methods performed by the terminal device or network device in various embodiments of this application.

[0360] It should be understood that in the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0361] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0362] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0363] In this application, entity A sends information to entity B, either directly or indirectly through other entities. Similarly, entity B receives information from entity A, either directly or indirectly through other entities. Entities A and B can be RAN nodes or terminals, or modules within RAN nodes or terminals. Information transmission and reception can be between RAN nodes and terminals, such as between a base station and a terminal; between two RAN nodes, such as between a CU and a DU; or between different modules within a single device, such as between a terminal chip and other modules of the terminal, or between a base station chip and other modules of the base station.

[0364] 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.

[0365] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0366] 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.

[0367] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the 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 can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can 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 can be any available medium that a computer can read or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs, DVDs) or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0368] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method of wireless communication, the method comprising: The method comprises: obtaining first configuration information, wherein the first configuration information comprises synchronization signal / physical broadcast channel block (SSB) configuration of one or more periods; receiving an SSB sent by a network device based on the SSB configuration of the one or more periods, wherein a sending period of the SSB is a period formed by combination of the one or more periods.

2. The method of claim 1, wherein, The sending mode of the SSB belongs to one or more of the following modes: a first mode; a second mode; a third mode, which is a mode formed by combination of the first mode and the second mode; wherein the first mode is sent in a mode in which the one or more periods are connected in series, and the second mode is sent in a mode in which the one or more periods are superimposed.

3. The method of claim 2, wherein, The sending mode of the SSB comprises the first mode, the one or more periods comprise a first period, and the first configuration information further comprises one or more of the following parameters: a first parameter for indicating a period length of the first period; a second parameter for indicating a duration of the first period in a second period; a first offset for indicating an offset of a starting position of the first period; a second offset for indicating an offset of a starting position of the second period; wherein the second period is a period formed after the one or more periods are connected in series.

4. The method of claim 3, wherein, The starting position of the second period satisfies the following formula: wherein n f is a system frame number in which the start position of the second type of period is located, L is a number of time units contained in a single system frame, n hf is a time unit sequence number of the start position of the second type of period within the system frame, T offset is the second offset, M is a total number of the one or more types of periods, is a duration of the i-th type of period among the one or more types of periods, is an offset of the i-th type of period among the one or more types of periods, mod denotes a modulo operation, M is a positive integer, and i is an integer greater than or equal to 0 and less than or equal to M-1.

5. The method of claim 4, wherein, wherein when i = 0, the starting position of the ith period is the starting position of the second period. when i ≥ 1, is an offset value of the start position of the i-th period with respect to the end position of the i-1-th period.

6. The method according to any one of claims 2-5, characterized in that, The sending mode of the SSB comprises the second mode, the one or more periods comprise a third period, and the first configuration information further comprises one or more of the following parameters: a third parameter for indicating a period length of the third period; a third offset for indicating an offset of a starting position of the third period.

7. The method of claim 6, wherein, The starting position of the jth period in the one or more periods satisfies the following formula: wherein n fj is the system frame number in which the start position of the jth periodicity is located, L is the number of time units contained in a single system frame, n hfj is the time unit number within the system frame in which the start position of the jth periodicity is located, is the offset of the start position of the jth periodicity, T j is the periodicity length of the jth periodicity, and mod denotes the modulo operation, j being 0 or a positive integer.

8. The method according to any one of claims 1-7, characterized in that, The SSB configuration of the one or more periods comprises one or more sets of SSB configuration, one set of SSB configuration in the one or more sets of SSB configuration comprises SSB configuration of one or more periods, and the first configuration information further comprises one or more timers, wherein the one or more timers are respectively used to control a validity duration of the one or more sets of SSB configuration.

9. The method of claim 8, wherein, wherein if the sending mode of the SSB is the first mode, the one set of SSB configuration comprises SSB configuration of one period; or if the sending mode of the SSB comprises the second mode, the one set of SSB configuration comprises SSB configuration of at least two periods.

10. The method according to claim 8 or 9, characterized in that, The one or more timers satisfy any one of the following conditions: if the sending mode of the SSB is the first mode, only one timer in the one or more timers is in a starting state at the same time; or if the sending mode of the SSB is the second mode, one or at least two timers in the one or more timers are in a starting state at the same time. If the transmission mode of the SSB is the third mode, at least two of the one or more timers are in an activated state at the same time, the at least two timers including a first timer and a second timer, the first timer corresponding to the first mode, and the second timer corresponding to the second mode.

11. The method according to any one of claims 8-10, characterized in that, The number of the one or more sets of SSB configurations is N, and the number of the one or more timers is N, wherein the one or more sets of SSB configurations and the one or more timers satisfy the following conditions: When the pth timer is activated, the pth set of SSB configurations takes effect; When the pth timer expires, the pth set of SSB configurations is invalid, if p is less than N, the (p+1)th set of SSB configurations takes effect, and the (p+1)th timer is activated, if p is equal to N, the Nth set of SSB configurations is invalid, the first set of SSB configurations takes effect, and the first timer is activated; Wherein, N is a positive integer, and p is an integer greater than or equal to 1 and less than or equal to N.

12. The method of claim 8, wherein, The transmission mode of the SSB is transmitted in a manner of concatenation of the first mode, the second mode and the third mode, the plurality of timers including a third timer, a fourth timer and a fifth timer, the third timer being used to control the effective duration of the first mode, the fourth timer being used to control the effective duration of the second mode, and the fifth timer being used to control the effective duration of the third mode.

13. The method of claim 12, wherein, The plurality of timers satisfy the following conditions: At the same time, only one of the third timer, the fourth timer and the fifth timer is in an activated state.

14. The method according to any one of claims 8-13, characterized in that, The receiving of the SSB transmitted by the network device based on the one or more periodic SSB configurations includes: Determining the effective SSB configuration according to one or more of the following information: the one or more periodic SSB configurations, and the one or more timers; Receiving the SSB transmitted by the network device based on the effective SSB configuration.

15. The method of any one of claims 1-14, wherein, The first configuration information further includes first indication information, and the first indication information is used to indicate the transmission mode of the SSB.

16. The method of any one of claims 1-15, wherein, The one or more periodic SSB configurations are related to beams and / or areas where the terminal device is located.

17. The method of claim 16, wherein, The method further includes: Obtaining a plurality of configuration information, the plurality of configuration information being respectively related to a plurality of beams and / or a plurality of areas; Determining the first configuration information from the plurality of configuration information based on the area where the terminal device is located and the association relationship between the plurality of configuration information and the plurality of beams and / or the plurality of areas.

18. A method of wireless communication, the method comprising: It includes: Sending first configuration information to a terminal device, the first configuration information including one or more periodic synchronization signal / physical broadcast channel block (SSB) configurations; Based on the one or more periodic SSB configurations, sending SSBs to the terminal device, the transmission period of the SSBs being a period combined by the one or more periods.

19. The method of claim 18, wherein, The transmission mode of the SSB belongs to one or more of the following modes: First mode; Second mode; Third mode, the third mode being a mode combined by the first mode and the second mode; The first mode is a mode of transmitting the SSBs in a manner of being sequentially arranged according to the one or more periods, and the second mode is a mode of transmitting the SSBs in a manner of being superposed according to the one or more periods.

20. The method of claim 19, wherein, The first mode is a mode of transmitting the SSBs in a manner of being sequentially arranged according to the one or more periods, and the second mode is a mode of transmitting the SSBs in a manner of being superposed according to the one or more periods. The first mode is a mode of transmitting the SSBs in a manner of being sequentially arranged according to the one or more periods, and the second mode is a mode of transmitting the SSBs in a manner of being superposed according to the one or more periods. The first mode is a mode of transmitting the SSBs in a manner of being sequentially arranged according to the one or more periods, and the second mode is a mode of transmitting the SSBs in a manner of being superposed according to the one or more periods. The second period is a period formed after the one or more periods are sequentially arranged. The second period satisfies the following formula: The second period satisfies the following formula:

21. The method of claim 20, wherein, When i = 0, the start position of the ith period is the start position of the second period. wherein n f is a system frame number in which the start position of the second type of period is located, L is a number of time units contained in a single system frame, n hf is a time unit sequence number of the start position of the second type of period within a system frame, T offset is the second offset, M is a total number of the one or more types of periods, is a duration of the i-th type of period among the one or more types of periods, is an offset of the i-th type of period among the one or more types of periods, mod denotes a modulo operation, M is a positive integer, and i is an integer greater than or equal to 0 and less than or equal to M-1.

22. The method of claim 21, wherein, The first mode is a mode of transmitting the SSBs in a manner of being sequentially arranged according to the one or more periods, and the second mode is a mode of transmitting the SSBs in a manner of being superposed according to the one or more periods. The first mode is a mode of transmitting the SSBs in a manner of being sequentially arranged according to the one or more periods, and the second mode is a mode of transmitting the SSBs in a manner of being superposed according to the one or more periods. when i ≥ 1, is an offset value of the start position of the i-th period with respect to the end position of the i-1-th period.

23. The method of any one of claims 19-22, wherein, The start position of the jth period in the one or more periods satisfies the following formula: The SSB configuration of the one or more periods includes one or more sets of SSB configurations, one set of SSB configurations in the one or more sets of SSB configurations includes SSB configurations of one or more periods, and the first configuration information further includes one or more timers, which are respectively used to control the validity duration of the one or more sets of SSB configurations. The first mode is a mode of transmitting the SSBs in a manner of being sequentially arranged according to the one or more periods, and the second mode is a mode of transmitting the SSBs in a manner of being superposed according to the one or more periods.

24. The method of claim 23, wherein, The first mode is a mode of transmitting the SSBs in a manner of being sequentially arranged according to the one or more periods, and the second mode is a mode of transmitting the SSBs in a manner of being superposed according to the one or more periods. wherein n fj is the system frame number in which the start position of the jth periodicity is located, L is the number of time units contained in a single system frame, n hfj is the time unit number within the system frame in which the start position of the jth periodicity is located, is the offset of the start position of the jth periodicity, T j is the length of the jth periodicity, and mod denotes the modulo operation, j being 0 or a positive integer.

25. The method of any one of claims 18-24, wherein, The one or more timers satisfy any one of the following conditions:

26. The method of claim 25, wherein, If the transmission mode of the SSBs is the first mode, only one timer in the one or more timers is in a starting state at the same time; If the transmission mode of the SSBs is the second mode, one or at least two timers in the one or more timers are in a starting state at the same time; If the transmission mode of the SSBs is the third mode, at least two timers in the one or more timers are in a starting state at the same time, the at least two timers include a first timer and a second timer, the first timer corresponds to the first mode, and the second timer corresponds to the second mode.

27. The method of claim 25 or 26, wherein, The number of the one or more sets of SSB configurations is N, and the number of the one or more timers is N, wherein the one or more sets of SSB configurations and the one or more timers satisfy the following condition: When the pth timer starts, the pth set of SSB configurations is valid. ​ ​ 28. The method of any one of claims 25-27, wherein, ​ ​ When the pth timer expires, the pth set of SSB configurations is invalidated, if p is less than N, the (p+1)th set of SSB configurations is validated, and the (p+1)th timer is started, if p is equal to N, the Nth set of SSB configurations is invalidated, the 1st set of SSB configurations is validated, and the 1st timer is started. Wherein, N is a positive integer, and p is an integer greater than or equal to 1 and less than or equal to N.

29. The method of claim 25, wherein, The sending mode of the SSBs is sent in a manner of concatenation of the first mode, the second mode and the third mode, the plurality of timers includes a third timer, a fourth timer and a fifth timer, the third timer is used to control the effective duration of the first mode, the fourth timer is used to control the effective duration of the second mode, and the fifth timer is used to control the effective duration of the third mode.

30. The method of claim 29, wherein, The plurality of timers satisfy the following conditions: At the same time, only one of the third timer, the fourth timer and the fifth timer is in a starting state.

31. The method of any one of claims 25-30, wherein, The SSBs are sent to the terminal device based on the one or more periodic SSB configurations, including: The effective SSB configuration is determined according to one or more of the following information: the one or more periodic SSB configurations, and the one or more timers; The SSBs are sent to the terminal device based on the effective SSB configuration.

32. The method of any one of claims 18-31, wherein, The first configuration information further includes first indication information, and the first indication information is used to indicate the sending mode of the SSBs.

33. The method of any one of claims 18-32, wherein, The one or more periodic SSB configurations are related to beams and / or areas where the terminal device is located.

34. A communications device, characterized by Including: A processor coupled with a memory, the memory is used to store a computer program, when the processor invokes the computer program, the communication device executes the method as claimed in any one of claims 1 to 17, or as claimed in any one of claims 18 to 33.

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