Wireless communication method, terminal device and network device

Abstract

The invention provides a wireless communication method, terminal equipment and network equipment. The method comprises: a terminal device receiving first information, the first information being used for indicating a transmission policy of an SSB, the transmission policy being associated with an active time period and / or an inactive time period in a cell DTX. In the embodiment of the invention, the network equipment indicates the transmission strategy of the SSB to the terminal equipment through the first information, and the transmission strategy of the SSB is associated with the activation time period and / or the inactivation time period of the DTX, so that energy conservation can be realized under the condition that the transmission performance of the SSB is not influenced.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a wireless communication method, terminal equipment and network equipment. Background Art

[0002] The synchronization signal broadcast channel block (synchronization signal block / physical broadcast channel block, SS / PBCH block, SSB) can help achieve initial synchronization and connection with the base station, but the transmission of SSB will affect the power consumption of the system. Therefore, it is necessary to improve the transmission of SSB to achieve energy saving without affecting the performance of SSB. Summary of the invention

[0003] The present application provides a wireless communication method, terminal equipment and network equipment. The following introduces various aspects involved in the present application.

[0004] According to a first aspect, a method for wireless communication is provided, comprising: a terminal device receives first information, wherein the first information is used to indicate a transmission strategy of SSB, and the transmission strategy is associated with an activation period and / or a non-activation period in a cell DTX.

[0005] According to a second aspect, a method for wireless communication is provided, comprising: a network device sends first information, wherein the first information is used to indicate a transmission strategy of SSB, and the transmission strategy is associated with an activation period and / or a non-activation period in a cell DTX.

[0006] According to a third aspect, a terminal device is provided, comprising: a transceiver unit for receiving first information, wherein the first information is used to indicate a transmission strategy of SSB, and the transmission strategy is associated with an activation period and / or a non-activation period in a cell DTX.

[0007] In a fourth aspect, a network device is provided, comprising: a transceiver unit, used to send first information, wherein the first information is used to indicate a transmission strategy of SSB, and the transmission strategy is associated with an activation period and / or a non-activation period in a cell DTX.

[0008] In a fifth aspect, a terminal device is provided, comprising a transceiver, a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the terminal device executes the method described in the first aspect.

[0009] In a sixth aspect, a network device is provided, comprising a transceiver, a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the network device executes the method described in the second aspect.

[0010] In a seventh aspect, a device is provided, comprising a processor, configured to call a program from a memory so that the device executes a method as described in any one of the first aspect or the second aspect.

[0011] In an eighth aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the first aspect or the second aspect.

[0012] In a ninth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0013] In a tenth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0014] In an eleventh aspect, a computer program is provided, wherein the computer program enables a computer to execute the method as described in the first aspect or the second aspect.

[0015] In an embodiment of the present application, the network device indicates the SSB transmission strategy to the terminal device through the first information. Since the SSB transmission strategy is associated with the activation period and / or non-activation period of DTX, it is beneficial to achieve energy saving without affecting the transmission performance of SSB. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 2 is a diagram showing an example of a system architecture of a wireless communication system applicable to an embodiment of the present application.

[0017] Figure 2 A flowchart of a wireless communication method according to an embodiment of the present application is shown.

[0018] Figure 3 Schematic diagram of the first SSB position during the DTX activation period.

[0019] Figure 4 Schematic diagram of the first SSB position during the DTX activation period.

[0020] Figure 5 Schematic diagram of the first SSB position during the DTX inactive period.

[0021] Figure 6Schematic diagram of the first SSB position during the DTX inactive period.

[0022] Figure 7 Schematic diagram of the last SSB position during the DTX inactive period.

[0023] Figure 8 Schematic diagram of the last SSB position during the DTX inactive period.

[0024] Fig. 9 A schematic diagram of the structure of a terminal device according to an embodiment of the present application.

[0025] Fig.10 A schematic diagram of the structure of a network device according to an embodiment of the present application.

[0026] Fig.11 A schematic diagram of a device for communication according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0028] Wireless communication system

[0029] Figure 1 1 is an example diagram of the system architecture of a wireless communication system 100 to which an embodiment of the present application can be applied. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide network coverage for a specific geographical area, and may communicate with the terminal device 120 located in the coverage area. The terminal device 120 may access a network, such as a wireless network, through the network device 110. Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0030] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solutions provided in the present application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0031] In the embodiments of the present application, the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiments of the present application may be a device that provides voice and / or data connectivity to a user, and may be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device may also be a mobile phone, a tablet computer, a laptop, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the terminal device may be used to act as a base station. For example, the terminal device may act as a dispatching entity that provides sidelink signals between terminal devices in vehicle to everything (V2X) or device to device (D2D). For example, a cellular phone and a car communicate with each other using a sidelink signal. Cellular phones and smart home devices communicate without relaying communication signals through a base station.

[0032] In an embodiment of the present application, a network device may be a device for communicating with a terminal device. The network device may be an access network device or a wireless access network device. For example, the network device may be a base station. The base station may broadly cover the following various names, or may be replaced with the following names, for example: Node B (NodeB), evolved NodeB (evolved NodeB, eNB), next generation NodeB (next generation NodeB, gNB), relay station, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), master station (MeNB), auxiliary station (SeNB), multi-standard wireless (MSR) node, home base station, network controller, access node, wireless node, access point (access point, AP), transmission node, transceiver node, baseband unit (base band unit, BBU), remote radio unit (remote radio unit, RRU), active antenna unit (active antenna unit, AAU), radio head (remote radiohead, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning node, etc. The base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station may also refer to a communication module, a modem or a chip used to be arranged in the aforementioned device or apparatus. The base station may also be a mobile switching center and a device to device D2D, vehicle-to-everything (V2X), a device that performs the base station function in machine-to-machine (M2M) communications, a network-side device in a 6G network, and a device that performs the base station function in future communication systems. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the network equipment. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the network equipment.

[0033] In addition, the base station can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device for communicating with another base station.

[0034] The network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons and satellites in the air. The embodiments of the present application do not limit the scenarios in which the network equipment and terminal equipment are located.

[0035] It should be understood that all or part of the functions of the communication device in the present application may also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform such as a cloud platform.

[0036] Radio resource control (RRC) status

[0037] In the 5G new radio (NR), the RRC state of the terminal device mainly includes three states, namely, idle state (RRC_IDLE), connected state (RRC_CONNECTED), and inactive state (RRC_INACTIVE).

[0038] In the RRC_IDLE state, the RRC connection between the terminal device and the network device is disconnected, and only the most basic synchronization is maintained. The terminal device periodically listens to paging messages to receive calls or data transmission requests. The positioning function supports basic location updates. When the terminal device moves between cells, it switches to a more suitable network device through the cell reselection mechanism. In terms of power consumption, the RRC_IDLE state has lower power consumption.

[0039] In the RRC_CONNECTED state, the RRC connection between the terminal device and the network device is active and can exchange data in real time. The terminal device can send and receive uplink and downlink data with the network device in the RRC_CONNECTED state. This state supports fast switching to ensure the continuity of the connection in high mobility scenarios. In addition, in the RRC_CONNECTED state, the terminal device continuously measures the signal quality and reports it to the network device to optimize the connection quality. The network device can actively schedule resources and control the data transmission of the terminal device in this state.

[0040] The RRC_INACTIVE state is a newly added state in the NR system, which aims to improve energy efficiency and reduce signaling overhead. This state is between the RRC_CONNECTED state and the RRC_IDLE state. The connection context between the terminal device and the network device is maintained, while the data connection is temporarily deactivated. When the terminal device in the RRC_INACTIVE state needs to reactivate data transmission, it can quickly restore to the RRC_CONNECTED state without re-establishing a complete connection, reducing signaling overhead and delay. Similar to the RRC_IDLE state, the terminal device in the RRC_INACTIVE state supports the cell reselection mechanism and can move between different cells. The terminal device can periodically listen to paging messages and activate the connection when needed. Compared with the RRC_CONNECTED state, the RRC_INACTIVE state has lower power consumption and is the preferred choice in scenarios with low data volume or intermittent data transmission.

[0041] The transition logic between RRC states depends on the activity of the terminal device, data requirements, and the configuration of the network device. When the terminal device has data to transmit or receives a paging message, the terminal device switches from the RRC_IDLE state to the RRC_CONNECTED state. When there is no activity for a long time in the connected state, the network device can instruct the terminal device to release the connection and enter the RRC_IDLE state. The RRC_CONNECTED state and the RRC_INACTIVE state can be switched quickly. The network device can intermittently control the terminal device to enter the RRC_INACTIVE state according to the traffic to save energy. When there is a new data transmission request, the terminal device can switch back to the RRC_CONNECTED state again. There is usually no direct transition between the RRC_IDLE state and the RRC_INACTIVE state. The RRC_INACTIVE state is mostly used for fast sleep and wake-up in the RRC_CONNECTED state.

[0042] The newly added RRC_INACTIVE state in the NR system further optimizes the transition between RRC states, enabling the NR system to reduce power consumption while maintaining the connection context and improving the system's support for intermittent transmission scenarios.

[0043] SSB

[0044] In the NR system, SSB is a key signal block used to help terminal devices synchronize and initially connect with network devices. The transmission of SSB also accounts for a part of the power consumption of the NR system. SSB usually includes primary synchronization signals (PSS), secondary synchronization signals (SSS), physical broadcast channel (PBCH) and other parts. Among them, PSS and SSS are used for time and frequency synchronization, which can help terminal devices find the synchronization information of network devices. PBCH carries basic system information to ensure that the terminal receives higher-level signals and configurations. SSB is broadcast periodically in the NR system, and the period can be configured to 5ms, 10ms, 20ms, etc. This means that network devices will periodically transmit SSB signals to ensure that new terminal devices can discover and connect to the network. In actual operation, network devices can adjust the transmission power of SSB according to factors such as coverage area and user density. Larger coverage areas may require higher transmission power, which will result in greater power consumption.

[0045] In the NR system, SSB is transmitted directionally through beamforming. Each beam includes one SSB, and the network can configure multiple beams to cover different directions. The SSBs required to complete a beam scan can form an SSB burst. An SSB burst can usually include up to 4, 8, or 64 SSBs, where different SSBs are represented by different SSB indices. More beams mean more SSB transmissions, which in turn increases power consumption. High-order multiple input multiple output (MIMO) antenna configurations also affect the transmit power and power consumption of SSB. For example, a 64-transmit 64-receive (64T64R) antenna consumes more power than a lower-order antenna configuration. In an environment where small base stations (e.g., micro base stations, macro base stations) are densely deployed, the coverage area of ​​SSB is smaller and the power consumption is relatively reduced, but the cumulative power consumption of multiple base stations is still large.

[0046] In order to reduce the power consumption of the system, the terminal device can be configured with two SSB cycles, one is a longer SSB cycle and the other is a shorter SSB cycle. For example, the longer SSB cycle can be 160 milliseconds and the shorter SSB cycle can be 20 milliseconds. When the network device is heavily loaded, the network device can switch to a 20 millisecond SSB cycle to send SSB. On the contrary, when the network device is lightly loaded, the network device can switch to a 160 millisecond SSB cycle to send SSB. When the SSB cycle switches from 160 milliseconds to 20 milliseconds, the current 160 millisecond cycle needs to be transmitted, and then the 20 millisecond cycle is used to transmit the next SSB, that is, it is necessary to wait for 160 milliseconds.

[0047] As mentioned above, the transmission of SSB is based on the beam scanning method, but the measurement service delay required by the terminal device in different beam directions is different. For example, in some directions, the terminal device has strong mobility, and the terminal devices in these directions need to measure frequently. For another example, some vehicle-mounted services require faster switching between cells, and the terminal devices need to measure faster. For another example, some beams of network equipment cover areas of high-speed switching, while some beams cover areas of ordinary roads and farmland in the cell, and the former need to have a shorter SSB period. The transmission of SSB (or angle) is associated with the SSB index. In an embodiment of the present application, different SSB periods can be configured for different SSB indexes, that is, the SSB periods corresponding to different SSB indexes may be different. The period associated with the SSB index can be activated when the network device configures multiple SSB periods for the terminal device, or certain SSB periods can be activated later through corresponding activation indications.

[0048] The transmission of SSB includes SSB on the synchronization grid (raster) and SSB on the non-synchronization grid. The synchronization grid provides a fixed frequency reference for the network equipment and the terminal equipment, and facilitates the terminal equipment to use spectrum resources efficiently and accurately in the network. The terminal equipment scans the frequency band to find the SSB sent by the network equipment. This step depends on the synchronization grid, because the transmission position of SSB is aligned in frequency at a certain position in the synchronization grid. The terminal equipment finds SSB by scanning these predefined positions. When the terminal device detects SSB, it can obtain the synchronization information and basic system information of the network equipment through SSB. The network equipment sends SSB at certain specific positions of the synchronization grid. The terminal equipment can quickly find SSB and complete initial access by scanning these positions. The synchronization grid can optimize resource allocation, allowing SSB to be concentrated in a specific frequency range, reduce signal interference and improve spectrum utilization.

[0049] SSB may fall on the synchronization grid or on the non-synchronization grid. For SSB falling on the synchronization grid, it may include cell-defined SSB (cell-defined SSB) and non-cell defined SSB (non cell defined, NCDSSB). One of the important differences between CD SSB and NCD SSB is whether it is used to obtain system information. Among them, CD SSB is usually used to obtain system information (such as SIB1). The main function of NCD SSB is interference elimination and robustness enhancement. For example, the strength of the interference signal can be obtained by measuring PSS and SSS, and NCD SSB can provide timing and synchronization references so that the terminal device can correctly receive and demodulate the signal from the network device. NCD SSB is not used to transmit system information. In addition, CD SSB needs to be transmitted on the synchronization grid, and NCD SSB does not require transmission on the synchronization grid. That is to say, NCDSSB can be transmitted on the synchronization grid or not.

[0050] Cell discontinuous transmission (CellDTX)

[0051] Since the NR system uses large-scale analog antennas, which limit the number of beams that can be sent simultaneously, in order to meet coverage requirements, signals are sent using beam scanning, which greatly increases the power consumption of network devices. To this end, the Cell DTX mechanism is proposed to save the power consumption of network devices.

[0052] Cell DTX is an energy-saving optimization technology that aims to reduce the power consumption of network equipment and terminal devices by intermittently shutting down unnecessary wireless transmissions, especially in low data demand or idle states. Cell DTX is a mechanism for network equipment to enter a "silent" state when there is no data transmission. In this state, the network equipment can temporarily stop transmitting downlink signals to reduce power consumption. This mechanism allows the RF resources of network equipment to dynamically adjust the transmission state according to actual needs instead of continuously transmitting signals. When there is no data transmission demand, the network equipment will not transmit any signals in certain subframes or time slots, that is, the network equipment enters a power saving mode. By reducing unnecessary signal transmission, the power consumption of network equipment can be significantly reduced when the data traffic is low or there is no data transmission. For operators, Cell DTX can effectively reduce the energy consumption of the entire network equipment, especially in time periods with less traffic (for example, late at night). In some scenarios, power consumption can be reduced by about 20% to 40%.

[0053] Cell DTX can not only reduce the power consumption of network devices, but also indirectly affect the power consumption of terminal devices. Since the terminal device does not need to continuously receive the downlink signal from the network device, the terminal device's RF receiver can also enter a low-power mode to save battery power. When the terminal device is idle, Cell DTX can significantly reduce the number of wake-up times of the terminal device, further extending the battery life of the terminal device.

[0054] Although Cell DTX allows network devices to stop transmitting data and enter a silent state when data transmission is idle, a small amount of signals are still needed to maintain synchronization and control information transmission during periods of less user activity (for example, at night). Some key control signals (for example, synchronization signals and broadcast signals) are still sent periodically as required to ensure that terminal devices can maintain connection and synchronization. SSB is a basic control signal and is usually not subject to Cell DTX constraints. Even if the network device uses DTX mode, SSB transmission will still be transmitted at a configured periodic time to ensure network device coverage and device connection.

[0055] When Cell DTX is applied, SSB and other key control signals (for example, PDCCH, PDSCH) have a higher priority. Even if the network device temporarily stops regular data transmission, it will continue to periodically transmit signals such as SSB to ensure that the terminal device can continue to receive synchronization signals. Cell DTX may reduce the overall transmission power of network equipment, but the transmission power of SSB is usually not affected, because the coverage and synchronization functions of SSB are critical to the performance of network equipment. In other words, DTX is used for transmission control of data frames, and SSB is a key control signal and is usually not completely interrupted due to the application of Cell DTX mode. Cell DTX is more about reducing data transmission frames rather than completely suppressing control signal frames.

[0056] The network device can configure Cell DTX for the terminal device in the RRC_CONNECTED state. Cell DTX includes an active period and an inactive period. During the inactive period of Cell DTX, the terminal device does not need to monitor the physical downlink control channel (PDCCH), thereby reducing power consumption. However, even if the cell enters the inactive period of Cell DTX, the network device will still send SSB signals regularly to maintain synchronization.

[0057] As mentioned above, the transmission of SSB affects the power consumption of the system. Therefore, it is necessary to improve the transmission of SSB to achieve energy saving without affecting the performance of SSB.

[0058] To address this problem, an embodiment of the present application provides a method for wireless communication, in which a network device indicates an SSB transmission strategy to a terminal device through a first message. Since the SSB transmission strategy is associated with an activation period and / or non-activation period of DTX, it is beneficial to achieve energy saving without affecting the transmission performance of the SSB.

[0059] Combine the following Figure 2 , the embodiments of the present application are introduced in detail.

[0060] Figure 2 A flowchart of a wireless communication method provided in an embodiment of the present application. Figure 2 The method 200 shown can be performed by a terminal device and a network device. The terminal device can be, for example, Figure 1 The terminal device 120 shown in FIG. 1 , the network device may be, for example, Figure 1 The network device 110 shown in FIG.

[0061] See also Figure 2 , in step 210, the network device sends first information to the terminal device.

[0062] Correspondingly, in step 220, the terminal device receives the first information sent by the network device.

[0063] Among them, the first information is used to indicate the transmission strategy of SSB, and the transmission strategy is associated with the activation period and / or non-activation period in DTX. The DTX described in the embodiment of the present application can be, for example, the above-mentioned cell DTX (Cell DTX). As an example, DTX includes an activation period and a non-activation period. During the activation period, the network device performs normal data service and reference signal transmission based on the communication protocol; during the non-activation period, the network device may shut down all transmission and reception of data services and reference signals, or only shut down the transmission and reception of part of the data.

[0064] In some implementations, the transmission strategy includes: transmitting SSB based on different periods during the active period and the inactive period; or transmitting SSB during the active period and not transmitting SSB during the inactive period. Here, not transmitting SSB can be understood as the period of transmitting SSB is infinite, or the period of transmitting SSB is greater than the length of the inactive period.

[0065] Specifically, on the one hand, it is possible to consider applying the cell's DTX to SSB transmission, and the network device can stop sending SSB during the inactive period of DTX to further achieve energy saving. In this case, the network device transmits SSB normally during the active period and suspends SSB transmission during the inactive period. Assuming that the DTX cycle is 640 milliseconds, where the length of the active period is 160 milliseconds, the network device sends SSB within these 160 milliseconds, and suspends SSB transmission during the remaining 480 milliseconds of the inactive period of the cycle. In this way, the network device achieves energy saving by suspending SSB transmission during the inactive period.

[0066] On the other hand, it is also possible to consider reducing the transmission frequency of SSB during the inactive period of DTX, which is particularly effective for low traffic or intermittent transmission scenarios. While keeping the terminal device connected, the network device can achieve higher energy efficiency. In this case, the network device transmits SSB based on the first cycle during the active period, and transmits SSB based on the second cycle during the inactive period, wherein the second cycle is greater than the first cycle (or the first cycle is less than the second cycle). The first cycle may also be referred to as a short cycle, and the second cycle may also be referred to as a long cycle. In other words, the transmission frequency of SSB is reduced during the inactive period to achieve energy saving. Optionally, the first cycle and the second cycle may have an integer multiple relationship, for example, the second cycle may be equal to 2 times or 3 times the first cycle, etc.

[0067] The network device may decide whether to adopt the above transmission strategy, that is, whether to associate the transmission of SSB with the activation period and / or inactivation period of DTX. For example, if the network device has configured and activated the DTX mode for a cell, the network device may also adopt the transmission strategy for the SSB transmission of the cell.

[0068] In some implementations, the first information may include one or more of the following: an SSB type associated with the transmission policy; an RRC state associated with the transmission policy; and time-related information of the transmission policy.

[0069] The RRC state associated with the transmission strategy may be, for example, an RRC connected state, an RRC idle state, or an RRC inactive state. The transmission strategy indicated by the first information may be associated with an SSB type, that is, the transmission strategy may be applicable to a certain RRC state.

[0070] The SSB type may include, for example, one or more of the following: CD-SSB; NCD-SSB; SSB located in a synchronization grid; SSB located in an asynchronous grid; a single SSB index; multiple SSB indexes in an SSB burst; a specific type of SSB applicable to the transmission strategy. The transmission strategy indicated by the first information may be associated with the SSB type, that is, the transmission strategy may be applicable to a certain SSB type. The transmission strategy may be associated with one or more SSB types. Alternatively, the transmission strategy may be executed only for certain specific types of SSBs (e.g., on-demand SSBs, etc.).

[0071] The transmission strategy can be associated only with the SSB index, and the terminal device can only focus on the reception of some SSB indexes in the SSB burst, that is, the transmission strategy is only used for this part of the SSB index. As an example, the SSB burst includes SSB index #0, SSB index #1, SSB index #2 and SSB index #3. If the transmission strategy is associated with SSB index #0 and SSB index #1, the SSBs corresponding to SSB index #0 and SSB index #1 are transmitted based on the transmission strategy, for example, different periods are used to transmit SSB index #0 and SSB index #1 during the active period and the inactive period of DTX.

[0072] Alternatively, the transmission strategy may also be associated with an SSB burst, and the transmission strategy is applicable to all SSB indexes in the SSB burst. As an example, an SSB burst includes SSB index #0, SSB index #1, SSB index #2, and SSB index #3. If the transmission strategy is associated with an SSB burst, the SSBs corresponding to SSB index #0, SSB index #1, SSB index #2, and SSB index #3 are all transmitted based on the transmission strategy, for example, SSB index #0, SSB index #1, SSB index #2, and SSB index #3 are transmitted using different periods during the active period and the inactive period of DTX.

[0073] The time-related information of the transmission strategy may include, for example, one or more of the following: the first cycle for transmitting SSB during the activation period; the second cycle for transmitting SSB during the inactive period; the first SSB position during the activation period; the first SSB position during the inactive period; the last SSB position during the activation period; the last SSB position during the inactive period.

[0074] If the network device is configured with multiple different transmission strategies, the first information may indicate a certain transmission strategy and carry time-related information of the transmission strategy in the first information, such as the first period and the second period. As an example, the first information indicates transmission strategy #1, and transmission strategy #1 is to transmit SSB during the active period and not to transmit SSB during the inactive period; for another example, the first information indicates transmission strategy #2, and transmission strategy #2 is to transmit SSB based on different periods during the active period and the inactive period, and the first period T01 for transmitting SSB during the active period and the second period T02 for transmitting SSB during the inactive period can be pre-configured, agreed upon by the protocol, or carried in the first information; for another example, the first information indicates transmission strategy #2, and carries the first period T11 for transmitting SSB during the active period, and the second period T12 for transmitting SSB during the inactive period; for another example, the first information indicates transmission strategy #2, and carries the first period T21 for transmitting SSB during the active period, and the second period T22 for transmitting SSB during the inactive period. The above-mentioned T11 is different from T21 and / or T12 is different from T22.

[0075] In some implementations, the first period included in the first information when the transmission policy is associated with the RRC idle state or the RRC deactivated state is less than the first period included in the first information when the transmission policy is associated with the RRC idle state or the RRC deactivated state; and / or, the second period included in the first information when the transmission policy is associated with the RRC idle state or the RRC deactivated state is less than the second period included in the first information when the transmission policy is associated with the RRC idle state or the RRC deactivated state. That is, the period for the terminal device to transmit SSB in the RRC idle state or the RRC deactivated state may be less than the period for the terminal device to transmit SSB in the RRC connected state, for example, for the activation period of DTX, the first period used in the RRC idle state or the RRC deactivated state is less than the first period used in the RRC connected state; for another example, for the inactive period of DTX, the second period used in the RRC idle state or the RRC deactivated state is less than the second period used in the RRC connected state. For another example, for the inactive period of DTX, SSB may not be transmitted in the RRC idle state or the RRC deactivated state, and SSB is transmitted based on the second period in the RRC connected state.

[0076] In addition, the first information may also carry information related to the SSB position, such as the first SSB position in the activation period, the first SSB position in the non-activation period, the last SSB position in the activation period, or the last SSB position in the non-activation period. Considering the measurement requirements of the terminal device for SSB during the activation time, the time starting point of the SSB transmission in the activation period can be aligned with the start time of the activation period, and of course, it can also be slightly earlier than the start time of the activation period.

[0077] Among them, the first SSB position in the activation period, for example, can be equal to the first period between the time interval between the last SSB position in the non-activation period before the activation period, or be aligned with the start time of the activation period. The terminal device starts data communication in the activation period, and before communicating, the terminal device needs to perform some radio resource management (RRM) measurements, so it is necessary to detect the SSB. Starting to transmit SSB as early as possible in the activation period can enable the terminal device to start SSB reception earlier in the activation period, reduce delays, and improve synchronization performance. As an example, if Figure 3 As shown in FIG. 1 , the first SSB position of the activation period is aligned with the start time of the activation period. Figure 4 As shown, assuming that the first cycle is T A , the second period is T B , T A <T B The time interval between the first SSB position in the active period and the last SSB position in the previous inactive period is T A .

[0078] The first SSB position in the inactive period, for example, may be spaced apart from the last SSB position in the active period before the inactive period by a time interval equal to the first period or the second period. Figure 5 As shown, assuming that the first cycle is T A , the second period is T B , T A <T B The time interval between the first SSB position in the inactive period and the last SSB position in the previous active period is T A . For example, Figure 6 As shown, assuming that the first cycle is T A , the second period is T B , T A <T B The time interval between the first SSB position in the inactive period and the last SSB position in the previous active period is T B .

[0079] The time interval between the last SSB position in the inactive period and the end time of the inactive period is less than the preset duration. That is to say, it is necessary to ensure that there is SSB transmission within the preset duration before entering the active period, so that the terminal device can start working immediately after entering the active period, thereby improving resource utilization. Among them, the last SSB position in the inactive period can be the last SSB position based on the second cycle, that is, the time interval between the last SSB position among the various SSB positions determined based on the second cycle in the inactive period and the end time of the inactive period is just less than the preset duration; or, the last SSB position in the inactive period can be an additional SSB position other than the multiple SBB positions based on the second cycle, that is, the time interval between the last SSB position among the multiple SSB positions determined based on the second cycle in the inactive period and the end time of the inactive period is greater than the preset duration. At this time, it is necessary to send an additional SSB so that the time interval between its position and the end time of the inactive period is less than the preset duration. The preset duration is less than the second cycle used to transmit SSB in the inactive period. Further, the preset duration can be N times the first cycle. For example, N=1 (ie, the preset duration is equal to the first period), N=1.5 or N=2.

[0080] As an example, Figure 7 As shown, assuming that the first cycle is T A , the second period is T B , T A <T B , SSB in the non-active period is based on the second period T B transmission, and based on the second period T B The interval ΔT between the last SSB position of the determined multiple SSB positions and the end time of the inactive period is just less than the preset time length T C , that is, △T<T C . For example, Figure 8 As shown, assuming that the first cycle is T A , the second period is T B , T A <T B , SSB in the non-active period is based on the second period T B transmission, and based on the second period T B The interval ΔT between the last SSB position of the determined multiple SSB positions and the end time of the inactive period is greater than the preset time length T C , that is, △T>T CIn this case, an additional SSB needs to be sent during the inactive period. The interval between the additional SSB and the end of the inactive period can be equal to the preset duration T C (like Figure 8 Alternatively, the interval between the additional SSB and the end time of the inactive period may also be less than the preset duration T C , for example, the interval between the additional SSB and the first SSB in the activation period is equal to the first period T A .

[0081] In other words, in order to ensure that there is SSB transmission within the preset time before entering the activation period, so that the terminal device can start working immediately after entering the activation period, the start time of the activation period (or the end time of the inactive period) can be preset in advance for a time period T C , obtain a new activation period, and in the new activation period, based on the first period T A Transmit SSB. Advancing the start time of the activation period is equivalent to providing an opportunity to transmit SSB earlier. The time interval between the first SSB in the new activation period and the last SSB in the inactive period can be equal to the first period T A .

[0082] Combination of the above Figures 1 to 8 , describes the method embodiment of the present application in detail, and the following is combined with Figures 9 to 11 , describes the device embodiment of the present application in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0083] Fig. 9 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application. Fig. 9 The terminal device 900 shown may include a transceiver unit 910. The transceiver unit 910 is used to receive first information, wherein the first information is used to indicate a transmission strategy of a synchronization signal broadcast channel block SSB, and the transmission strategy is associated with an activation period and / or a non-activation period in a cell DTX.

[0084] In some implementations, the transmission strategy includes: transmitting the SSB based on different periods during the activation period and the non-activation period; or transmitting the SSB during the activation period and not transmitting the SSB during the non-activation period.

[0085] In some implementations, the first information includes one or more of the following: an SSB type associated with the transmission strategy; a radio resource control RRC state associated with the transmission strategy; and time-related information of the transmission strategy.

[0086] In some implementations, the time-related information includes one or more of the following: the first cycle for transmitting SSB in the activation period; the second cycle for transmitting SSB in the non-activation period; the first SSB position in the activation period; the first SSB position in the non-activation period; the last SSB position in the activation period; the last SSB position in the non-activation period.

[0087] In some implementations, the first period is smaller than the second period.

[0088] In some implementations, the first period included in the first information when the transmission policy is associated with the RRC idle state or the RRC deactivated state is smaller than the first period included in the first information when the transmission policy is associated with the RRC connected state; and / or the second period included in the first information when the transmission policy is associated with the RRC idle state or the RRC deactivated state is smaller than the second period included in the first information when the transmission policy is associated with the RRC connected state.

[0089] In some implementations, the SSB type includes one or more of the following: cell-defined CD-SSB; non-cell-defined NCD-SSB; SSB located in a synchronization grid; SSB located in an asynchronous grid; SSB index; SSB burst; a specific type of SSB applicable to the transmission strategy.

[0090] In some implementations, the time interval between the first SSB position in the activation period and the last SSB position in the non-activation period before the activation period is equal to the first period, or is aligned with the start time of the activation period.

[0091] In some implementations, the time interval between the first SSB position in the inactive period and the last SSB position in the active period before the inactive period is equal to the first period or the second period.

[0092] In some implementations, the time interval between the last SSB position in the non-activation period and the end time of the non-activation period is less than a preset duration, wherein the last SSB position in the non-activation period is the last SSB position based on the second cycle, or is an additional SSB position other than multiple SBB positions based on the second cycle.

[0093] In some implementations, the preset duration is less than the second period, and the preset duration is N times the first period, where N=1, N=1.5 or N=2.

[0094] It can be understood that the transceiver unit 910 can be, for example, a transceiver 1130. In addition, optionally, the terminal device 900 further includes a processor 1110 and a memory 1120, for details, see Fig.11 .

[0095] Fig.10 A schematic diagram of the structure of a network device provided in an embodiment of the present application. Fig.10 The network device 1000 shown may include a transceiver unit 1010. The transceiver unit 1010 is used to send first information, wherein the first information is used to indicate a transmission strategy of a synchronization signal broadcast channel block SSB, and the transmission strategy is associated with an activation period and / or an inactivation period in a cell DTX.

[0096] In some implementations, the transmission strategy includes: transmitting the SSB based on different periods during the activation period and the non-activation period; or transmitting the SSB during the activation period and not transmitting the SSB during the non-activation period.

[0097] In some implementations, the first information includes one or more of the following: an SSB type associated with the transmission strategy; a radio resource control RRC state associated with the transmission strategy; and time-related information of the transmission strategy.

[0098] In some implementations, the time-related information includes one or more of the following: the first cycle for transmitting SSB in the activation period; the second cycle for transmitting SSB in the non-activation period; the first SSB position in the activation period; the first SSB position in the non-activation period; the last SSB position in the activation period; the last SSB position in the non-activation period.

[0099] In some implementations, the first period is smaller than the second period.

[0100] In some implementations, the first period included in the first information when the transmission policy is associated with the RRC idle state or the RRC deactivated state is smaller than the first period included in the first information when the transmission policy is associated with the RRC connected state; and / or the second period included in the first information when the transmission policy is associated with the RRC idle state or the RRC deactivated state is smaller than the second period included in the first information when the transmission policy is associated with the RRC connected state.

[0101] In some implementations, the SSB type includes one or more of the following: cell-defined CD-SSB; non-cell-defined NCD-SSB; SSB located in a synchronization grid; SSB located in an asynchronous grid; SSB index; SSB burst; a specific type of SSB applicable to the transmission strategy.

[0102] In some implementations, the time interval between the first SSB position in the activation period and the last SSB position in the non-activation period before the activation period is equal to the first period, or is aligned with the start time of the activation period.

[0103] In some implementations, the time interval between the first SSB position in the inactive period and the last SSB position in the active period before the inactive period is equal to the first period or the second period.

[0104] In some implementations, the time interval between the last SSB position in the non-activation period and the end time of the non-activation period is less than a preset duration, wherein the last SSB position in the non-activation period is the last SSB position based on the second cycle, or is an additional SSB position other than multiple SBB positions based on the second cycle.

[0105] In some implementations, the preset duration is less than the second period, and the preset duration is N times the first period, where N=1, N=1.5 or N=2.

[0106] It can be understood that the transceiver unit 1010 can be, for example, a transceiver 1130. In addition, optionally, the network device 1000 further includes a processor 1110 and a memory 1120, for details, see Fig.11 .

[0107] Fig.11 It is a schematic structural diagram of a device for communication according to an embodiment of the present application. Fig.11 The dotted line shown in indicates that the unit or module is optional. The apparatus 1100 may be used to implement the method described in the above method embodiment. The apparatus 1100 may be, for example, a chip, a terminal device or a network device.

[0108] The device 1100 may include one or more processors 1110. The processor 1110 may support the device 1100 to implement the method described in the aforementioned method embodiment. The processor 1110 may be a general-purpose processor or a special-purpose processor. For example, the processor 1110 may be a central processing unit (CPU). Alternatively, the processor 1110 may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or may be any conventional processor, etc.

[0109] The apparatus 1100 may further include one or more memories 1120. The memory 1120 stores a program, which can be executed by the processor 1110, so that the processor 1110 executes the method described in the above method embodiment. The memory 1120 may be independent of the processor 1110, or may be integrated in the processor 1110.

[0110] The apparatus 1100 may further include a transceiver 1130. The processor 1110 may communicate with other devices or chips through the transceiver 1130. For example, the processor 1110 may transmit and receive data with other devices or chips through the transceiver 1130.

[0111] The embodiment of the present application also provides a communication system. The communication system includes the above-mentioned terminal device and network device. In some implementations, the system also includes other devices that interact with the terminal device and the network device.

[0112] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal device or a network device provided in the present application, and the program enables a computer to execute the method performed by the terminal device or the network device in each embodiment of the present application.

[0113] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal device or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0114] The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal device or network device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the terminal device or network device in each embodiment of the present application.

[0115] It should be understood that the terms "system" and "network" in the embodiments of the present application can be used interchangeably. In addition, the terms used in the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the specification and claims of the present application and the accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0116] In the embodiments of the present application, the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0117] In the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0118] In the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.

[0119] In the embodiments of the present application, "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0120] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0121] In the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0122] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean 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 the present application.

[0123] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0124] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0125] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0126] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part 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, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0127] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that: include: The terminal device receives first information, wherein the first information is used to indicate a transmission strategy of a synchronization signal broadcast channel block SSB, and the transmission strategy is associated with an activation period and / or a non-activation period in a cell discontinuous transmission DTX.

2. The method according to claim 1, characterized in that The transmission strategy includes: transmitting the SSB based on different cycles during the active period and the inactive period; or, The SSB is transmitted during the active period, and the SSB is not transmitted during the inactive period.

3. The method according to claim 1 or 2, characterized in that: The first information includes one or more of the following: the SSB type associated with the transmission policy; a radio resource control (RRC) state associated with the transmission strategy; The time-related information of the transmission strategy.

4. The method according to claim 3, characterized in that: The time-related information includes one or more of the following: A first cycle for transmitting SSB within the activation period; a second cycle for transmitting SSB during the inactive period; The first SSB position within the activation period; The first SSB position in the inactive period; The last SSB position in the activation period; The last SSB position during the inactive period.

5. The method according to claim 4, characterized in that The first period is smaller than the second period.

6. The method according to claim 4 or 5, characterized in that: The first period included in the first information when the transmission strategy is associated with the RRC idle state or the RRC deactivated state is smaller than the first period included in the first information when the transmission strategy is associated with the RRC connected state; and / or, The second period included in the first information when the transmission strategy is associated with the RRC idle state or the RRC deactivated state is smaller than the second period included in the first information when the transmission strategy is associated with the RRC connected state.

7. The method according to any one of claims 4 to 6, characterized in that The SSB types include one or more of the following: Cell definition CD-SSB; Non-cell definition NCD-SSB; SSB located on the synchronization grid; SSB located on an asynchronous grid; SSB index; SSB burst; The specific type of SSB that applies to the transmission strategy.

8. The method according to any one of claims 4 to 7, characterized in that The time interval between the first SSB position in the activation period and the last SSB position in the non-activation period before the activation period is equal to the first cycle, or is aligned with the start time of the activation period.

9. The method according to any one of claims 4 to 8, characterized in that The time interval between the first SSB position in the non-activation period and the last SSB position in the activation period before the non-activation period is equal to the first cycle or the second cycle.

10. The method according to any one of claims 4 to 9, characterized in that The time interval between the last SSB position in the non-activation period and the end time of the non-activation period is less than a preset duration, wherein the last SSB position in the non-activation period is the last SSB position based on the second cycle, or an additional SSB position outside the multiple SBB positions based on the second cycle.

11. The method according to claim 10, characterized in that The preset duration is shorter than the second period, and the preset duration is N times of the first period, where N=1, N=1.5 or N=2.

12. A wireless communication method, characterized in that: include: The network device sends first information, wherein the first information is used to indicate a transmission strategy of a synchronization signal broadcast channel block SSB, and the transmission strategy is associated with an activation period and / or an inactivation period in a cell discontinuous transmission DTX.

13. The method according to claim 12, characterized in that The transmission strategy includes: transmitting the SSB based on different cycles during the active period and the inactive period; or, The SSB is transmitted during the active period, and the SSB is not transmitted during the inactive period.

14. The method according to claim 12 or 13, characterized in that The first information includes one or more of the following: the SSB type associated with the transmission policy; a radio resource control (RRC) state associated with the transmission strategy; The time-related information of the transmission strategy.

15. The method according to claim 14, characterized in that The time-related information includes one or more of the following: A first cycle for transmitting SSB within the activation period; a second cycle for transmitting SSB during the inactive period; The first SSB position within the activation period; The first SSB position in the inactive period; The last SSB position in the activation period; The last SSB position during the inactive period.

16. The method according to claim 15, characterized in that The first period is smaller than the second period.

17. The method according to claim 15 or 16, characterized in that The first period included in the first information when the transmission strategy is associated with the RRC idle state or the RRC deactivated state is smaller than the first period included in the first information when the transmission strategy is associated with the RRC connected state; and / or, The second period included in the first information when the transmission strategy is associated with the RRC idle state or the RRC deactivated state is smaller than the second period included in the first information when the transmission strategy is associated with the RRC connected state.

18. The method according to any one of claims 15 to 17, characterized in that The SSB types include one or more of the following: Cell definition CD-SSB; Non-cell definition NCD-SSB; SSB located on the synchronization grid; SSB located on an asynchronous grid; SSB index; SSB burst; The specific type of SSB that applies to the transmission strategy.

19. The method according to any one of claims 15 to 18, characterized in that The time interval between the first SSB position in the activation period and the last SSB position in the non-activation period before the activation period is equal to the first cycle, or is aligned with the start time of the activation period.

20. The method according to any one of claims 15 to 19, characterized in that The time interval between the first SSB position in the non-activation period and the last SSB position in the activation period before the non-activation period is equal to the first cycle or the second cycle.

21. The method according to any one of claims 15 to 20, characterized in that The time interval between the last SSB position in the non-activation period and the end time of the non-activation period is less than a preset duration, wherein the last SSB position in the non-activation period is the last SSB position based on the second cycle, or an additional SSB position outside the multiple SBB positions based on the second cycle.

22. The method according to claim 21, characterized in that The preset duration is shorter than the second period, and the preset duration is N times of the first period, where N=1, N=1.5 or N=2.

23. A terminal device, characterized in that: include: A transceiver unit is used to receive first information, wherein the first information is used to indicate a transmission strategy of a synchronization signal broadcast channel block SSB, and the transmission strategy is associated with an activation period and / or a non-activation period in a cell discontinuous transmission DTX.

24. The terminal device according to claim 23, characterized in that: The transmission strategy includes: transmitting the SSB based on different cycles during the active period and the inactive period; or, The SSB is transmitted during the active period, and the SSB is not transmitted during the inactive period.

25. The terminal device according to claim 23 or 24, characterized in that: The first information includes one or more of the following: the SSB type associated with the transmission policy; a radio resource control (RRC) state associated with the transmission strategy; The time-related information of the transmission strategy.

26. The terminal device according to claim 25, characterized in that: The time-related information includes one or more of the following: A first cycle for transmitting SSB within the activation period; a second cycle for transmitting SSB during the inactive period; The first SSB position within the activation period; The first SSB position in the inactive period; The last SSB position in the activation period; The last SSB position during the inactive period.

27. The terminal device according to claim 26, characterized in that: The first period is smaller than the second period.

28. The terminal device according to claim 26 or 27, characterized in that: The first period included in the first information when the transmission strategy is associated with the RRC idle state or the RRC deactivated state is smaller than the first period included in the first information when the transmission strategy is associated with the RRC connected state; and / or, The second period included in the first information when the transmission strategy is associated with the RRC idle state or the RRC deactivated state is smaller than the second period included in the first information when the transmission strategy is associated with the RRC connected state.

29. The terminal device according to any one of claims 26 to 28, characterized in that: The SSB types include one or more of the following: Cell definition CD-SSB; Non-cell definition NCD-SSB; SSB located on the synchronization grid; SSB located on an asynchronous grid; SSB index; SSB burst; The specific type of SSB that applies to the transmission strategy.

30. The terminal device according to any one of claims 26 to 29, characterized in that: The time interval between the first SSB position in the activation period and the last SSB position in the non-activation period before the activation period is equal to the first cycle, or is aligned with the start time of the activation period.

31. The terminal device according to any one of claims 26 to 30, characterized in that: The time interval between the first SSB position in the non-activation period and the last SSB position in the activation period before the non-activation period is equal to the first cycle or the second cycle.

32. The terminal device according to any one of claims 26 to 31, characterized in that: The time interval between the last SSB position in the non-activation period and the end time of the non-activation period is less than a preset duration, wherein the last SSB position in the non-activation period is the last SSB position based on the second cycle, or an additional SSB position outside the multiple SBB positions based on the second cycle.

33. The terminal device according to claim 32, characterized in that: The preset duration is shorter than the second period, and the preset duration is N times of the first period, where N=1, N=1.5 or N=2.

34. A network device, characterized in that: include: A transceiver unit is used to send first information, wherein the first information is used to indicate a transmission strategy of a synchronization signal broadcast channel block SSB, and the transmission strategy is associated with an activation period and / or a non-activation period in a cell discontinuous transmission DTX.

35. The network device according to claim 34, characterized in that: The transmission strategy includes: transmitting the SSB based on different cycles during the active period and the inactive period; or, The SSB is transmitted during the active period, and the SSB is not transmitted during the inactive period.

36. The network device according to claim 34 or 35, characterized in that: The first information includes one or more of the following: the SSB type associated with the transmission policy; a radio resource control (RRC) state associated with the transmission strategy; The time-related information of the transmission strategy.

37. The network device according to claim 36, characterized in that: The time-related information includes one or more of the following: A first cycle for transmitting SSB within the activation period; a second cycle for transmitting SSB during the inactive period; The first SSB position within the activation period; The first SSB position in the inactive period; The last SSB position in the activation period; The last SSB position during the inactive period.

38. The network device according to claim 37, characterized in that: The first period is smaller than the second period.

39. The network device according to claim 37 or 38, characterized in that: The first period included in the first information when the transmission strategy is associated with the RRC idle state or the RRC deactivated state is smaller than the first period included in the first information when the transmission strategy is associated with the RRC connected state; and / or, The second period included in the first information when the transmission strategy is associated with the RRC idle state or the RRC deactivated state is smaller than the second period included in the first information when the transmission strategy is associated with the RRC connected state.

40. The network device according to any one of claims 37 to 39, characterized in that: The SSB types include one or more of the following: Cell definition CD-SSB; Non-cell definition NCD-SSB; SSB located on the synchronization grid; SSB located on an asynchronous grid; SSB index; SSB burst; The specific type of SSB that applies to the transmission strategy.

41. The network device according to any one of claims 37 to 40, characterized in that: The time interval between the first SSB position in the activation period and the last SSB position in the non-activation period before the activation period is equal to the first cycle, or is aligned with the start time of the activation period.

42. The network device according to any one of claims 37 to 41, characterized in that: The time interval between the first SSB position in the non-activation period and the last SSB position in the activation period before the non-activation period is equal to the first cycle or the second cycle.

43. The network device according to any one of claims 37 to 42, characterized in that: The time interval between the last SSB position in the non-activation period and the end time of the non-activation period is less than a preset duration, wherein the last SSB position in the non-activation period is the last SSB position based on the second cycle, or an additional SSB position outside the multiple SBB positions based on the second cycle.

44. The network device according to claim 43, characterized in that The preset duration is shorter than the second period, and the preset duration is N times of the first period, where N=1, N=1.5 or N=2.

45. A terminal device, characterized in that: It comprises a transceiver, a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the terminal device executes the method according to any one of claims 1 to 11.

46. ​​A network device, characterized in that: It comprises a transceiver, a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory and control the transceiver to receive or send a signal so that the network device executes the method according to any one of claims 12 to 22.

47. A device, characterized in that The device comprises a processor, configured to call a program from a memory so as to enable the device to execute the method according to any one of claims 1 to 22.

48. A chip, characterized in that: The device comprises a processor, configured to call a program from a memory, so that a device equipped with the chip executes a method according to any one of claims 1 to 22.

49. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 22.

50. A computer program product, characterized in that A program is included, which causes a computer to execute the method according to any one of claims 1 to 22.

51. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1 to 22.

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