Wireless communication method and apparatus, device, and storage medium

Abstract

The present application relates to the technical field of communications, and provides a wireless communication method and apparatus, a device, and a storage medium. The method comprises: a terminal device receiving first indicating information, the first indicating information being used for determining a time domain position of a target SSB burst in a first cell, and the first cell being a deactivated secondary cell configured for the terminal device (610); and the terminal device determining the time domain position of the target SSB burst in the first cell according to the first indicating information and a first duration (620). According to the method provided by the present application, different terminal devices can determine, upon receiving OD-SSB indicating information and after a first duration, a valid SSB burst in a secondary cell, and perform measurement and reporting during a secondary cell activation process on the basis of the determined valid SSB burst, thereby reducing secondary cell activation latency.

Description

Wireless communication method, apparatus, device, and storage medium TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of communication, in particular to a wireless communication method, apparatus, device and storage medium. BACKGROUND

[0002] With the development of wireless communication technology, the demand for network energy saving (NES) is proposed, and network energy saving is of great significance to environmental sustainability, reducing the impact on the environment (reducing greenhouse gas emissions), and saving operating costs.

[0003] Under the background of network energy saving, how terminal devices measure secondary cells needs further research.

[0004] SUMMARY

[0005] Embodiments of the present application provide a wireless communication method, apparatus, device and storage medium. The technical solutions provided by the embodiments of the present application are as follows.

[0006] According to an aspect of the embodiments of the present application, a wireless communication method is provided, the method is executed by a terminal device, and the method comprises:

[0007] receiving first indication information, the first indication information being used to determine the time domain position of a target SSB burst on a first cell, the first cell being a deactivated secondary cell configured for the terminal device;

[0008] determining the time domain position of the target SSB burst on the first cell according to the first indication information and a first time length.

[0009] According to an aspect of the embodiments of the present application, a wireless communication method is provided, the method is executed by a network device, and the method comprises:

[0010] sending first indication information, the first indication information being used to determine the time domain position of a target SSB burst on a first cell, the first cell being a deactivated secondary cell configured for a terminal device, wherein the time domain position of the target SSB burst on the first cell is determined based on the first indication information and a first time length.

[0011] According to an aspect of the embodiments of the present application, a wireless communication apparatus is provided, the apparatus comprises:

[0012] a receiving module configured to receive first indication information, the first indication information being used to determine the time domain position of a target SSB burst on a first cell, the first cell being a deactivated secondary cell configured for a terminal device;

[0013] a processing module configured to determine a time domain position of the target SSB burst on the first cell according to the first indication information and a first time length.

[0014] According to an aspect of some embodiments of the present application, a wireless communication apparatus is provided, the apparatus comprising:

[0015] a sending module configured to send first indication information, the first indication information being used to determine a time domain position of a target SSB burst on a first cell, the first cell being a deactivated secondary cell configured for a terminal device, wherein the time domain position of the target SSB burst on the first cell is determined based on the first indication information and a first time length.

[0016] According to an aspect of some embodiments of the present application, a terminal device is provided, the terminal device comprising a processor and a memory, the memory storing a computer program, and the processor executing the computer program to implement the wireless communication method on the terminal device side as described above.

[0017] According to an aspect of some embodiments of the present application, a network device is provided, the network device comprising a processor and a memory, the memory storing a computer program, and the processor executing the computer program to implement the wireless communication method on the network device side as described above.

[0018] According to an aspect of some embodiments of the present application, a computer readable storage medium is provided, the storage medium storing a computer program, and the computer program being used to be executed by a processor to implement the wireless communication method on the terminal device side as described above, or to implement the wireless communication method on the network device side as described above.

[0019] According to an aspect of some embodiments of the present application, a chip is provided, the chip comprising a programmable logic circuit and / or program instructions, and when the chip is running, the programmable logic circuit and / or program instructions are used to implement the wireless communication method on the terminal device side as described above, or to implement the wireless communication method on the network device side as described above.

[0020] According to an aspect of some embodiments of the present application, a computer program product is provided, the computer program product comprising computer instructions stored in a computer readable storage medium, and a processor reading and executing the computer instructions from the computer readable storage medium to implement the wireless communication method on the terminal device side as described above, or to implement the wireless communication method on the network device side as described above.

[0021] The technical solutions provided by the embodiments of the present application can have the following beneficial effects:

[0022] By the method provided in the present application, different terminal devices can determine the effective SSB burst on the secondary cell after the first time length after receiving the OD-SSB indication information (i.e. the first indication information), and implement measurement and reporting in the secondary cell activation process based on the determined effective SSB burst, thereby reducing the time delay of secondary cell activation. BRIEF DESCRIPTION OF DRAWINGS

[0023] FIG. 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0024] FIG. 2 is a schematic diagram of the architecture of a communication system provided in another embodiment of the present application;

[0025] FIG. 3 is a schematic diagram of the architecture of a communication system provided in another embodiment of the present application;

[0026] FIG. 4 is a schematic diagram of the position of different SSB index values in a half frame provided in an embodiment of the present application;

[0027] FIG. 5 is a schematic diagram of the effective time A of OD-SSB indication information provided in an embodiment of the present application;

[0028] FIG. 6 is a flowchart of a wireless communication method provided in an embodiment of the present application;

[0029] FIG. 7 is a schematic diagram of the starting point range of T value provided in an embodiment of the present application;

[0030] FIG. 8 is a schematic diagram of the starting point range of T value provided in another embodiment of the present application;

[0031] FIG. 9 is a schematic diagram of the starting point range of T value provided in another embodiment of the present application;

[0032] FIG. 10 is a schematic diagram of the starting point range of T value provided in another embodiment of the present application;

[0033] FIG. 11 is a block diagram of a wireless communication device provided in an embodiment of the present application;

[0034] FIG. 12 is a block diagram of a wireless communication device provided in another embodiment of the present application;

[0035] FIG. 13 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application;

[0036] FIG. 14 is a schematic diagram of the structure of a network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0038] The network architecture and service scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of network architecture and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0039] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, evolved system of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5th-Generation (5G) system, 6th-Generation (6G) system or other communication systems, etc.

[0040] Generally, a conventional communication system supports a limited number of connections and is easy to implement. However, with the development of communication technology, a mobile communication system will not only support conventional communication, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, and the like. Embodiments of the present application can also be applied to these communication systems.

[0041] The communication system in embodiments of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, and a standalone (SA) network deployment scenario.

[0042] The communication system in embodiments of the present application can be applied to unlicensed spectrum, which can also be considered as shared spectrum. Alternatively, the communication system in embodiments of the present application can also be applied to licensed spectrum, which can also be considered as non-shared spectrum.

[0043] The communication system scenario includes a non-terrestrial network (NTN) system and a terrestrial network (TN) system. The NTN generally adopts a satellite communication mode to provide communication services to ground users. The NTN system currently includes an NR-NTN and an IoT-NTN system, and can also include other NTN systems in the future.

[0044] For example, FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present application. As shown in FIG. 1, the communication system 100 can include a network device 110, which can be a device that communicates with a terminal device 120. The network device 110 can provide communication coverage for a specific geographic area and can communicate with terminal devices located within the coverage area.

[0045] FIG. 1 exemplarily shows one network device 110 and two terminal devices 120. In some embodiments of the present application, the communication system 100 can include multiple network devices and each network device can include a different number of terminal devices within its coverage range, which is not limited in embodiments of the present application.

[0046] For example, FIG. 2 is a schematic diagram of another architecture of a communication system provided by an embodiment of the present application. Referring to FIG. 2, the communication system can include a terminal device 201 and a satellite 202, and the terminal device 201 and the satellite 202 can perform wireless communication. The network formed by the terminal device 201 and the satellite 202 can also be referred to as an NTN. In the architecture of the communication system shown in FIG. 2, the satellite 202 can have the function of a base station, and the terminal device 201 and the satellite 202 can directly communicate. In this system architecture, the satellite 202 can be referred to as a network device. In some embodiments of the present application, the communication system can include multiple satellites 202, and each network satellite 202 can include other numbers of terminal devices within its coverage, which is not limited in the embodiments of the present application.

[0047] For example, FIG. 3 is a schematic diagram of another architecture of a communication system provided by an embodiment of the present application. Referring to FIG. 3, the communication system includes a terminal device 301, a satellite 302, and a base station 303, and the terminal device 301 and the satellite 302 can perform wireless communication, and the satellite 302 and the base station 303 can communicate. The network formed by the terminal device 301, the satellite 302, and the base station 303 can also be referred to as an NTN. In the architecture of the communication system shown in FIG. 3, the satellite 302 can not have the function of a base station, and the communication between the terminal device 301 and the base station 303 needs to be relayed through the satellite 302. In this system architecture, the base station 303 can be referred to as a network device. In some embodiments of the present application, the communication system can include multiple base stations 303, each base station 303 can communicate with one or more satellites 302, and each satellite 302 can include other numbers of terminal devices within its coverage, which is not limited in the embodiments of the present application.

[0048] In the future evolution of communication systems such as B5G (Beyond 5G) or 6G, distributed multiple-input multiple-output (Distributed MIMO, also referred to as distributed antenna system) scenarios and / or massive multiple-input multiple-output (Massive MIMO, also referred to as massive antenna matrix system) scenarios can also be included. In some cases, Distributed MIMO and / or Massive MIMO can also support a cell-free or UE-centric network deployment scenario. It should be understood that the above scenarios also apply to TN and / or NTN.

[0049] The terminal device mentioned in the embodiments of the present application can refer to a UE (User Equipment), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent or a user device. Alternatively, the terminal device 10 can also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5GS (5th Generation System) or a terminal device in a future evolved PLMN (Public Land Mobile Network), etc. The embodiments of the present application are not limited thereto. For convenience of description, the above-mentioned devices are collectively referred to as terminal devices. In the embodiments of the present application, "terminal device" and "UE" are often used interchangeably, but those skilled in the art can understand that the two can express the same meaning.

[0050] The network device mentioned in the embodiments of the present application can be an access network device, which can be located on the ground or on a satellite. The access network device is a device deployed in the access network to provide wireless communication functions for terminal devices. The access network device can include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems using different wireless access technologies, the names of devices with access network device functions may be different, for example, in a 5G NR system, it is called gNodeB or gNB. With the evolution of communication technology, the name of "access network device" may change. For the convenience of description, in the embodiments of the present application, the above-mentioned devices providing wireless communication functions for terminal devices are collectively referred to as access network devices. Alternatively, a communication relationship can be established between the terminal device and the core network device through the access network device.

[0051] The "5G NR system" in the embodiments of the present application can also be referred to as a 5G system or an NR system, but those skilled in the art can understand its meaning. The technical solutions described in the embodiments of the present application can be applicable to the LTE system, the 5G NR system, the subsequent evolution system (such as the 6G system) of the 5G NR system, and other communication systems such as the NB-IoT (Narrow Band Internet of Things) system, etc. The present application is not limited thereto.

[0052] In the embodiments of the present application, the network device can provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) on a carrier used by the cell. The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell (Small cell). The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, and the like. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.

[0053] Before introducing the technical solutions of the present application, some related technical knowledge involved in the present application will be introduced and explained. The following related technologies can be combined with the technical solutions of the embodiments of the present application in any way as optional solutions, which all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0054] 1. Network energy saving

[0055] Network energy saving is of great significance to environmental sustainability, reducing the impact on the environment (reducing greenhouse gas emissions), and saving operating costs. With the gradual popularization of 5G in various industries and geographical areas, it is necessary to support very high data transmission rates to handle more advanced services and applications (such as XR), and the network deployment becomes denser, uses more antennas, has larger bandwidth and more frequency bands. Considering the environmental impact of 5G, new solutions need to be developed to enhance network energy saving.

[0056] Energy consumption has become a key part of the operational expenditure (OPEX) of operators. According to the report of the Global System Mobile Association (GSMA), the energy cost of mobile networks accounts for about 23% of the total operational cost. Most of the energy consumption comes from the radio access network, more specifically, from the Active Antenna Unit (AAU), and the data center and fiber transmission account for a smaller share. The power consumption of a radio access can be divided into two parts: the dynamic part only includes the power consumption when data is being transmitted or received; the static part includes the power consumption necessary for the operation of the radio access device at all times, including the power consumption when no data is being transmitted or received.

[0057] Therefore, based on the above purpose, it is necessary to study and develop network energy consumption models, KPIs (Key Performance Indicators), evaluation methods, etc. on the network equipment side to determine and study network energy saving technologies in the target deployment scenario. Among them, the power consumption model on the terminal equipment side that has been defined can be used as a reference. This research should focus on how to achieve more effective dynamic operation and / or semi-static operation, and consider one or more network energy saving technologies applied in the time domain, frequency domain, spatial domain and power domain, combined with potential terminal device feedback support, potential terminal device assistance information, and information exchange or coordination between network interfaces, etc. Techniques to achieve more fine-grained data transmission and / or reception adaptation.

[0058] Notably, this research not only evaluates potential network energy saving gains, but also needs to evaluate and balance the impact on network and user performance by observing KPIs such as spectral efficiency, capacity, UPT (User Perceived Throughput), latency, UE power consumption, complexity, handover performance, call drop rate, initial access performance, SLA (Service Level Agreement) security-related KPIs, and so on. This research should avoid having a large impact on the above-mentioned KPIs.

[0059] 2. SSB transmission and multi-carrier scenarios in NR systems

[0060] In the NR system, the initial access procedure of the terminal device can be completed by detecting the synchronization signal block (SSB or SS / PBCH block) on the synchronization raster. In the initial access procedure, the terminal device attempts to search for the SSB through the pre-defined possible time-frequency position of the SSB, and obtains time and frequency synchronization, radio frame timing, and cell ID through the detected SSB. Among them, the SSB transmitted in one SSB burst transmission opportunity can be one or more, and the SSB burst should be transmitted within one half frame (5ms). The SSB index value corresponding to the actually transmitted SSB in one SSB burst transmission opportunity can be indicated by high layer signaling (such as SSB index indication information). The positions of different SSB index values in one half frame are pre-defined, that is, the terminal device can determine the position of the actually transmitted SSB in one half frame according to the SSB index value indicated by the SSB index indication information. FIG. 4 shows an example of the positions of different SSB index values in one half frame in the case of a non-shared spectrum with a carrier frequency greater than 3GHz in the FR1 (Frequency Range 1, frequency spectrum range 1) frequency band and a subcarrier spacing of 15kHz and 30kHz of the SSB, wherein the value of the SSB index value is 0 to 7.

[0061] After the terminal device accesses the network, the network device can configure multiple serving cells as secondary cells for the terminal device according to the capability of the terminal device, so as to improve the peak rate of data transmission of the terminal device. On the secondary cell configured by the network device for the terminal device, the network device can not transmit the SSB, or transmit the SSB with a long period, so as to save the power consumption of the network device. The network device can activate or deactivate the secondary cell configured for the terminal device through the MAC CE (Media Access Control Control Element, media access control layer control element) command. The multiple activated serving cells of the terminal device can perform data transmission in the manner of carrier aggregation (CA) or dual connectivity (DC).

[0062] 3. OD-SSB (On-demand SSB, on-demand SSB) transmission on secondary cell

[0063] As described above, on the secondary cell configured for the terminal device, the network device can not transmit SSB burst or transmit SSB burst with long periodicity. In order to realize fast secondary cell activation of the terminal device, the network device can transmit on-demand SSB burst (OD-SSB burst). The OD-SSB indication information can be sent at the time of secondary cell configuration (T1), or can be sent at the time of receiving the secondary cell activation command (T2), or can be sent at a time between T1 and T2. In some cases, the OD-SSB indication information can also be sent after receiving the secondary cell activation command (after T2). For example, the network device sends the OD-SSB indication information at a time between T2 and T3, where T3 is the time when the secondary cell activation is completed.

[0064] It is assumed that the effective time of the OD-SSB indication information is time instance A, that is, the terminal device expects the OD-SSB burst to be sent from time instance A, where there are several ways to determine time instance A (as shown in FIG. 5):

[0065] Alt 1-1: Time instance A is T time slots or symbols after the terminal device receives the OD-SSB indication information sent by the network device, as shown in subgraph (1) of FIG. 5;

[0066] Alt 1-2: Time instance A is T time slots or symbols after the terminal device sends HARQ-ACK (Hybrid Automatic Repeat request-Acknowledgement) corresponding to the OD-SSB indication information sent by the network device, as shown in subgraph (2) of FIG. 5;

[0067] Alt 2: Time instance A is the frame or time slot or symbol of the OD-SSB indication information sent by the network device, as shown in subgraph (3) of FIG. 5;

[0068] Alt 3-1: Time instance A is the first candidate transmission opportunity of the OD-SSB burst after T time slots or symbols after the terminal device receives the OD-SSB indication information sent by the network device, where the first candidate transmission opportunity is the first actually transmitted SSB, as shown in subgraph (4) of FIG. 5;

[0069] Alt 3-2: Time A is the first candidate transmission opportunity of the OD-SSB burst after T slots or symbols after the slot or symbol in which the terminal device transmits the HARQ-ACK corresponding to the OD-SSB indication information sent by the network device, as shown in subgraph (5) in FIG. 5.

[0070] After much discussion, in the case of OD-SSB indication information carried by MAC CE, the main determination methods of time A are Alt 3-1 or Alt 3-2.

[0071] In the case of OD-SSB indication information carried by MAC CE, the MAC CE carrying the OD-SSB indication information is transmitted through the dedicated PDSCH (Physical Downlink Shared Channel) of the terminal device, and the PDSCH may be transmitted successfully at one time or may need to be retransmitted multiple times to be successful. Therefore, the starting point of the T value in FIG. 5 may be different for different terminal devices. However, the OD-SSB burst indicated on the secondary cell is a cell-common SSB burst transmission opportunity. How to determine the starting point and length of the T value so that each terminal device can correctly determine the first candidate transmission opportunity of the OD-SSB burst on the secondary cell needs further research.

[0072] Please refer to FIG. 6, which shows a flowchart of a wireless communication method provided by an embodiment of the present application. The method can be applied in the network architecture shown in FIGS. 1 to 3. The method can include the following step 610.

[0073] Step 610: The terminal device receives first indication information, and the first indication information is used to determine the time domain position of the target SSB burst on the first cell, and the first cell is a deactivated secondary cell configured for the terminal device.

[0074] On the secondary cell (i.e. the above-mentioned first cell) configured for the terminal device, the terminal device can receive the first indication information. The first indication information can also be referred to as OD-SSB indication information. It can be understood that the terminal device can receive the first indication information before receiving the activation command of the first cell, or can receive the first indication information after receiving the activation command of the first cell, which is not limited by the present application.

[0075] In some embodiments, the first indication information is used to determine a time domain position of a target SSB burst on the first cell. The target SSB burst is an SSB burst determined according to the first indication information. The target SSB burst is an SSB burst on the first cell, such as an OD-SSB burst on the first cell. The target SSB burst can include one or more SSB bursts. Illustratively, the first indication information is used to trigger the target SSB burst on the first cell. It can be understood that the first cell can be configured with other SSB bursts in addition to the target SSB burst, or can not be configured with other SSB bursts, which is not limited in the present application.

[0076] In some embodiments, the network device sends the first indication information, and accordingly, the terminal device receives the first indication information.

[0077] In some embodiments, the first indication information is carried by one of the following: a MAC CE, a DCI (Downlink Control Information), an RRC (Radio Resource Control) signaling, and a system message block. Illustratively, the first indication information is a MAC CE.

[0078] In some embodiments, the first indication information is a DCI of a common PDCCH transmission.

[0079] Illustratively, the first indication information is trigger information of the target SSB burst of the first cell. The network device configures a starting position of an information field corresponding to the first indication information in the DCI through a high layer signaling such as an RRC signaling. After detecting the DCI, the terminal device can read the first indication information from the starting position of the information field corresponding to the first indication information in the DCI, so as to determine whether to trigger the target SSB burst of the first cell according to the first indication information.

[0080] Illustratively, the DCI can include trigger information of SSB bursts of multiple cells. The network device configures a starting position of an information field corresponding to the trigger information of the SSB burst of each cell in the DCI through a high layer signaling such as an RRC signaling.

[0081] For a secondary cell of the terminal device, the first indication information can be used to trigger SSB burst transmission on the secondary cell, so that the terminal device can activate the secondary cell according to the SSB burst triggered by the first indication information, thereby realizing that the network device can not transmit SSB bursts or transmit SSB bursts with a long period on the secondary cell configured for the terminal device by the network device, so as to save the power consumption of the network device; when it is necessary to activate the secondary cell based on the SSB burst, the network device can trigger the SSB burst transmission to assist the terminal device to quickly activate the secondary cell.

[0082] At step 620, the terminal device determines the time domain position of the target SSB burst on the first cell according to the first indication information and the first time length.

[0083] In some embodiments, the time domain position of the target SSB burst includes one of the following cases 1-4.

[0084] Case 1, the starting position of the first SSB burst in the target SSB burst. Illustratively, the time domain position of the target SSB burst includes the starting position of the half frame in which the first SSB burst in the target SSB burst is located.

[0085] Case 2, the starting position of the first transmitted SSB in the first SSB burst in the target SSB burst.

[0086] Case 3, the starting position of the first SSB in the first SSB burst in the target SSB burst, the first SSB being the SSB with the smallest index value determined according to the second indication information, the second indication information being used to determine the index value of the SSB transmitted in the target SSB burst.

[0087] Case 4, the starting position of the second SSB in the first SSB burst in the target SSB burst, the second SSB being the SSB with the smallest index value determined according to the third indication information, the third indication information being used to determine the index value of the SSB for measurement in the target SSB burst.

[0088] In some embodiments, the second indication information is sent by the network device to the terminal device. Illustratively, the second indication information can be carried in RRC signaling.

[0089] In some embodiments, the third indication information is sent by the network device to the terminal device. Illustratively, the third indication information can be carried in RRC signaling.

[0090] The above-mentioned second indication information and third indication information can be sent in the same signaling or in different signaling, which is not limited in the present application. In addition, the second indication information and the third indication information can be sent in RRC signaling, which can also be sent in MAC CE or DCI, which is not limited in the present application.

[0091] In some embodiments, the first SSB burst is one SSB burst included in the target SSB burst.

[0092] In some embodiments, the first SSB burst comprises a first SSB burst in the target SSB burst after receiving the first indication information. For example, the first SSB burst is the first SSB burst in the one or more SSB bursts included in the target SSB burst, which has a time-domain position after a time of receiving the first indication information, where the first SSB burst refers to the SSB burst with the earliest or the most front time-domain position. In some embodiments, receiving the first indication information can also be understood as sending a HARQ-ACK information corresponding to the first indication information, such as ACK information. For example, the first SSB burst is the first SSB burst in the one or more SSB bursts included in the target SSB burst, which has a time-domain position after a time of sending the HARQ-ACK information corresponding to the first indication information, where the first SSB burst refers to the SSB burst with the earliest or the most front time-domain position.

[0093] In some embodiments, the first SSB burst comprises a first SSB burst in the target SSB burst after receiving the first indication information and a first time duration. For example, the first SSB burst is the first SSB burst in the one or more SSB bursts included in the target SSB burst, which has a time-domain position after a time of receiving the first indication information plus the first time duration, where the first SSB burst refers to the SSB burst with the earliest or the most front time-domain position. In some embodiments, receiving the first indication information can also be understood as sending a HARQ-ACK information corresponding to the first indication information, such as ACK information. For example, the first SSB burst is the first SSB burst in the one or more SSB bursts included in the target SSB burst, which has a time-domain position after a time of sending the HARQ-ACK information corresponding to the first indication information plus the first time duration, where the first SSB burst refers to the SSB burst with the earliest or the most front time-domain position.

[0094] The starting position of the first SSB burst refers to a starting position of a time-domain resource occupied by the first SSB burst, such as a starting time of a starting symbol of the first SSB burst, i.e., a starting time of a first symbol in the time-domain resource occupied by the first SSB burst, or a starting time of a symbol with the earliest time-domain position in the time-domain resource occupied by the first SSB burst. For example, the starting position of the first SSB burst is a starting time of a starting symbol of a slot in which the first SSB burst is located.

[0095] The starting position of the first transmitted SSB in the first SSB burst refers to the starting position of the time domain resource occupied by the first transmitted SSB in the first SSB burst, such as the starting time of the starting symbol of the first transmitted SSB, that is, the starting time of the first symbol in the time domain resource occupied by the first transmitted SSB, or the starting time of the symbol with the earliest time domain position in the time domain resource occupied by the first transmitted SSB.

[0096] The starting position of the first SSB in the first SSB burst refers to the starting position of the time domain resource occupied by the first SSB, such as the starting time of the starting symbol of the first SSB, that is, the starting time of the first symbol in the time domain resource occupied by the first SSB, or the starting time of the symbol with the earliest time domain position in the time domain resource occupied by the first SSB.

[0097] The starting position of the second SSB in the first SSB burst refers to the starting position of the time domain resource occupied by the second SSB, such as the starting time of the starting symbol of the second SSB, that is, the starting time of the first symbol in the time domain resource occupied by the second SSB, or the starting time of the symbol with the earliest time domain position in the time domain resource occupied by the second SSB.

[0098] The first SSB is the SSB with the smallest SSB index value determined according to the second indication information. For example, the first SSB burst includes 8 candidate SSBs, and their index values are 0, 1, 2, 3, 4, 5, 6, and 7 respectively. Assuming that the index values of the actually transmitted SSBs among the above-mentioned 8 candidate SSBs determined based on the second indication information are 0, 1, 2, and 3, the first SSB is the SSB with the index value of 0. Assuming that the index values of the actually transmitted SSBs among the above-mentioned 8 candidate SSBs determined based on the second indication information are 1 and 3, the first SSB is the SSB with the index value of 1.

[0099] The second SSB is the SSB with the smallest SSB index value determined according to the third indication information. For example, the first SSB burst includes 4 SSBs, and their index values are 0, 1, 2, and 3 respectively. Assuming that the index value of the SSB for measurement among the above-mentioned 4 SSBs determined based on the third indication information is 0, the first SSB is the SSB with the index value of 0. Assuming that the index values of the SSBs for measurement among the above-mentioned 4 SSBs determined based on the third indication information are 1 and 2, the first SSB is the SSB with the index value of 1.

[0100] In some embodiments, the time domain position of the target SSB burst includes a starting position of a first SSB burst in the target SSB burst, and the terminal device determines the starting position of the first SSB in the first SSB burst according to the second indication information, or the terminal device determines the starting position of a second SSB in the first SSB burst according to the third indication information. As described above, the first SSB is the SSB with the smallest index value among the SSBs transmitted in the target SSB burst, and the second SSB is the SSB with the smallest SSB index value among the SSBs for measurement in the target SSB burst.

[0101] In some embodiments, the terminal device determines the time domain position of each SSB burst in the target SSB burst according to the time domain position of the first SSB burst and the first SSB period. For example, if the time domain position of the first SSB burst is slot n and the first SSB period is T slots, then the time domain positions of each SSB burst in the target SSB burst are slot n, slot n+T, slot n+2T, and so on.

[0102] In some embodiments, the first SSB period can be configured by the network device through RRC signaling. In some embodiments, the first SSB period is determined according to the first indication information; or the first SSB period is determined according to the second indication information; or the first SSB period is determined according to the third indication information. For more information about the first indication information, the second indication information, and the third indication information, please refer to the above description, which will not be repeated here. For example, the second indication information includes indication information for indicating the index value of the SSB transmitted in the target SSB burst, and also includes indication information for indicating the first SSB period.

[0103] In the following, the first duration is described.

[0104] In some embodiments, the first duration is determined according to the RRC signaling configured by the network device; or the first duration is determined according to the MAC CE sent by the network device; or the first duration is determined according to the DCI sent by the network device. For example, the RRC signaling configured by the network device includes a parameter for determining the first duration. For example, the DCI sent by the network device includes a parameter for determining the first duration.

[0105] In some embodiments, the first indication information is also used to determine the first duration. In addition to being used to determine the time domain position of the target SSB burst on the first cell, the first indication information is also used to determine the first duration. For example, the first indication information includes first sub-information and second sub-information, wherein the first sub-information is used to determine the time domain position of the target SSB burst on the first cell, and the second sub-information is used to determine the first duration.

[0106] In some embodiments, the first time length is determined according to a preset parameter. Illustratively, the preset parameter is the first time length, or the preset parameter can be calculated or mapped or otherwise obtained to the first time length.

[0107] In some embodiments, the second indication information is further used to determine the first time length.

[0108] In some embodiments, the third indication information is further used to determine the first time length.

[0109] In some embodiments, the first time length is determined according to DCI of the common PDCCH transmission.

[0110] Illustratively, the DCI includes an information field for determining the first time length. The network device configures the starting position of the information field for determining the first time length in the DCI through high layer signaling such as RRC signaling. After detecting the DCI, the terminal device can read the information for determining the first time length in the DCI from the starting position of the information field for determining the first time length in the DCI, so as to determine the first time length according to the information for determining the first time length.

[0111] Illustratively, the first indication information and the first time length are determined according to the same DCI. The network device configures the starting position of the information field corresponding to the first indication information in the DCI and the starting position of the information field for determining the first time length in the DCI through high layer signaling such as RRC signaling, respectively. After detecting the DCI, the terminal device can read the first indication information in the DCI from the starting position of the information field corresponding to the first indication information in the DCI, so as to determine whether to trigger the target SSB burst of the first cell according to the first indication information; can read the information for determining the first time length in the DCI from the starting position of the information field for determining the first time length in the DCI, so as to determine the first time length according to the information for determining the first time length.

[0112] In some embodiments, the unit of the first time length is one of the following: time slot, symbol, half frame, radio frame.

[0113] In some embodiments, the start of the first time length is determined according to one of the following: an ending position of a symbol where the first downlink channel carrying the first indication information is located; an ending position of a time slot where the first downlink channel carrying the first indication information is located; a starting position of a time slot where the first downlink channel carrying the first indication information is located; an ending position of a half frame where the first downlink channel carrying the first indication information is located; a starting position of a half frame where the first downlink channel carrying the first indication information is located; an ending position of a radio frame where the first downlink channel carrying the first indication information is located; a starting position of a radio frame where the first downlink channel carrying the first indication information is located; an ending position of a symbol where the first uplink channel carrying the first HARQ-ACK is located; an ending position of a time slot where the first uplink channel carrying the first HARQ-ACK is located; a starting position of a time slot where the first uplink channel carrying the first HARQ-ACK is located; an ending position of a half frame where the first uplink channel carrying the first HARQ-ACK is located; a starting position of a half frame where the first uplink channel carrying the first HARQ-ACK is located; an ending position of a radio frame where the first uplink channel carrying the first HARQ-ACK is located; a starting position of a radio frame where the first uplink channel carrying the first HARQ-ACK is located; wherein the first HARQ-ACK is a HARQ-ACK corresponding to the first downlink channel.

[0114] In some embodiments, the first downlink channel can be a PDSCH or a PDCCH (Physical Downlink Control Channel).

[0115] In some embodiments, the first time length is greater than or equal to a first processing time length, and the first processing time length is determined according to a processing time length of the terminal device for the MAC CE. Illustratively, the first processing time length is equal to the processing time length of the terminal device for the MAC CE.

[0116] In some embodiments, the first processing time length is 3 milliseconds; and / or, the processing time length of the terminal device for the MAC CE is 3 milliseconds.

[0117] In some embodiments, in the case that the first indication information is a MAC CE and the MAC CE is transmitted through the first downlink channel, one of the following conditions A-H is satisfied.

[0118] Case A, a time interval between an end position of a symbol where the first downlink channel is located and a start position of the first SSB is greater than or equal to the first time length; wherein the end position of the symbol where the first downlink channel is located is in front, and the start position of the first SSB is behind.

[0119] Case B, a time interval between an end position of a symbol where the first downlink channel is located and a start position of the first SSB is greater than or equal to a processing time length of the terminal device to the MAC CE; wherein the end position of the symbol where the first downlink channel is located is in front, and the start position of the first SSB is behind.

[0120] Case C, a time interval between an end position of a symbol where the first downlink channel is located and a start position of the second SSB is greater than or equal to the first time length; wherein the end position of the symbol where the first downlink channel is located is in front, and the start position of the second SSB is behind.

[0121] Case D, a time interval between an end position of a symbol where the first downlink channel is located and a start position of the second SSB is greater than or equal to a processing time length of the terminal device to the MAC CE; wherein the end position of the symbol where the first downlink channel is located is in front, and the start position of the second SSB is behind.

[0122] Case E, a time interval between an end position of a symbol where the first uplink channel is located and a start position of the first SSB is greater than or equal to the first time length; wherein the end position of the symbol where the first uplink channel is located is in front, and the start position of the first SSB is behind.

[0123] Case F, a time interval between an end position of a symbol where the first uplink channel is located and a start position of the first SSB is greater than or equal to a processing time length of the terminal device to the MAC CE; wherein the end position of the symbol where the first uplink channel is located is in front, and the start position of the first SSB is behind.

[0124] Case G, a time interval between an end position of a symbol where the first uplink channel is located and a start position of the second SSB is greater than or equal to the first time length; wherein the end position of the symbol where the first uplink channel is located is in front, and the start position of the second SSB is behind.

[0125] Case H, a time interval between an end position of a symbol where the first uplink channel is located and a start position of the second SSB is greater than or equal to a processing time length of the terminal device to the MAC CE; wherein the end position of the symbol where the first uplink channel is located is in front, and the start position of the second SSB is behind.

[0126] The first SSB is an SSB with a minimum SSB index value among SSBs transmitted in the target SSB burst. The second SSB is an SSB with a minimum SSB index value among SSBs for measurement in the target SSB burst. The first uplink channel is used to transmit the first HARQ-ACK, and the first HARQ-ACK is a HARQ-ACK corresponding to the first downlink channel.

[0127] In a case where the first indication information is a MAC CE, by defining a size relationship between the time interval and the first time length or defining a size relationship between the time interval and a processing time length of the terminal device for the MAC CE, it is possible to ensure that the terminal device successfully decodes the MAC CE to obtain the first indication information and determines the time domain position of the target SSB burst on the first cell based on the first indication information.

[0128] In a network energy saving system, the network device can not transmit an SSB burst on a secondary cell configured by the terminal device. Before the secondary cell configured by the terminal device is activated or when the secondary cell configured by the terminal device is activated, the network device can send OD-SSB indication information to the terminal device through high layer signaling such as a MAC CE, and the OD-SSB indication information is used to indicate a transmission position of an OD-SSB burst on the secondary cell.

[0129] Through the method provided in the present application, different terminal devices can determine an effective SSB burst on the secondary cell after receiving the OD-SSB indication information and the first time length, and perform measurement and reporting in the secondary cell activation process based on the determined effective SSB burst, thereby reducing the time delay of secondary cell activation.

[0130] Next, based on two cases of the first time length, the technical solutions of the present application are introduced and described.

[0131] Case 1: The first time length (denoted as T value) is a fixed value

[0132] In some embodiments, the first time length is determined according to a preset parameter. For example, the first time length is a predefined value.

[0133] In some embodiments, the first time length is configured by the network device. For example, the first time length is a value configured by the network device through RRC signaling.

[0134] In some embodiments, the first time length is not less than the processing time length of the terminal device for the MAC CE. For example, the processing time length of the terminal device for the MAC CE is 3ms, and the value of the first time length can be 3ms.

[0135] In the related art, the time A is the first actually transmitted SSB in the SSB burst after T slots or symbols. In the case where the T value is a fixed value, the starting point range of the T value is the time interval between two adjacent SSB transmission opportunities. As can be seen from FIG. 4, two adjacent SSB transmission opportunities are spaced apart by 6 symbols in the time domain, that is, the starting point range of the T value includes 6 consecutive symbols. FIG. 7 takes the SSB subcarrier spacing as 15 kHz, the T value as 3 ms, and the actually transmitted SSBs as SSBs with SSB index values of 3, 4, and 5 in the SSB burst as an example for example illustration. After receiving the OD-SSB indication information, the terminal device should determine the position of SSB #3 according to the T value, that is, the earliest time determined by the terminal device according to the T value should be later than the starting position of the first symbol of SSB #2, and the latest time determined by the terminal device according to the T value should be no later than the starting position of the first symbol of SSB #3. That is, as shown in FIG. 7, the starting point of the T value should be no earlier than the starting position of symbol 2 of slot n-2, and the starting point of the T value should be no later than the starting position of symbol 8 of slot n-2. The starting point range of the T value includes 6 symbols between symbol 2 and symbol 7 of slot n-2.

[0136] It can be understood that the starting position of symbol k and the ending position of symbol k-1 are the same position, and k is a positive integer.

[0137] That is, if the starting point of the T value is the ending position of the symbol in which the terminal device receives the OD-SSB indication information sent by the network device, the ending symbol in which different terminal devices receive the OD-SSB indication information should be one symbol between symbol 2 and symbol 8 of slot n-2; if the starting point of the T value is the ending position of the symbol in which the terminal device sends the HARQ-ACK corresponding to the OD-SSB indication information, the ending symbol in which different terminal devices send the HARQ-ACK corresponding to the OD-SSB indication information should be one symbol between symbol 2 and symbol 8 of slot n-2. This will greatly limit the time at which the network device sends the OD-SSB indication information. If the starting point of the T value is the ending position of the slot in which the terminal device receives the OD-SSB indication information sent by the network device, or the starting point of the T value is the ending position of the slot in which the terminal device sends the HARQ-ACK corresponding to the OD-SSB indication information, the time A cannot be the first candidate transmission opportunity in the SSB burst after T slots or symbols.

[0138] To reduce the time limit for the network device to send the OD-SSB indication information, in some embodiments, the time A is the starting position of the first SSB burst after T time units, or the starting position of the half frame in which the first SSB burst is located after T time units. That is, the time A is no longer defined as the starting position of the first actually transmitted SSB. The terminal device can determine the index value of the actually transmitted SSB in the SSB burst according to the SSB index value indicated by the SSB index indication information. In the case where the T value is a fixed value, the range of the starting point of the T value is the time interval between the starting positions of adjacent SSB bursts, that is, one half frame (5 ms). Accordingly, if the starting point of the T value is the ending position of the time slot or symbol in which the terminal device receives the OD-SSB indication information sent by the network device, the ending position of the time slot or symbol in which the terminal device receives the OD-SSB indication information sent by the network device should be within a continuous 5 ms, or if the starting point of the T value is the ending position of the time slot or symbol in which the terminal device sends the HARQ-ACK corresponding to the OD-SSB indication information, the ending position of the time slot or symbol in which the terminal device sends the HARQ-ACK corresponding to the OD-SSB indication information should be within a continuous 5 ms.

[0139] In some embodiments, the time A is the starting position of the first SSB burst in the radio frame after T time units. The terminal device can determine whether the SSB burst is located in the first half frame or the second half frame in the radio frame according to the SSB half frame indication information. The terminal device can determine the index value of the actually transmitted SSB in the SSB burst according to the SSB index value indicated by the SSB index indication information. In the case where the T value is a fixed value, the range of the starting point of the T value is the time interval between the starting positions of adjacent SSB bursts in the radio frame, that is, one radio frame (10 ms). Accordingly, if the starting point of the T value is the ending position of the time slot or symbol in which the terminal device receives the OD-SSB indication information sent by the network device, the ending position of the time slot or symbol in which the terminal device receives the OD-SSB indication information sent by the network device should be within a continuous 10 ms, or if the starting point of the T value is the ending position of the time slot or symbol in which the terminal device sends the HARQ-ACK corresponding to the OD-SSB indication information, the ending position of the time slot or symbol in which the terminal device sends the HARQ-ACK corresponding to the OD-SSB indication information should be within a continuous 10 ms.

[0140] In the embodiments of the present application, the time unit can be one of the following: time slot, symbol, half frame, radio frame.

[0141] FIG. 8 illustrates an example in which the SSB subcarrier spacing is 15 kHz, the T value is 3 ms, and the actually transmitted SSBs are SSBs with index values 3, 4, and 5 in an SSB burst. In the example of FIG. 8, time A is the start position of the first SSB burst after T time units, or time A is the start position of the half frame in which the first SSB burst after T time units is located. After receiving the OD-SSB indication information, the terminal device should determine the position of the first SSB burst according to the T value, that is, the earliest time determined by the terminal device according to the T value should be later than the start position of the first symbol of slot n-5, and the latest time determined by the terminal device according to the T value should be no later than the start position of the first symbol of slot n. That is, as shown in FIG. 8, the start of the T value should be no earlier than the start position of slot n-5, and the start of the T value should be no later than the start position of slot n. The start of the T value ranges from slot n-8 to slot n-4, which includes 5 slots. Further, the terminal device determines, according to the SSB index indicated by the SSB index indication information, that the actually transmitted SSBs in the SSB burst are SSB#3, SSB#4, and SSB#5.

[0142] To reduce the time limit for the network device to send the OD-SSB indication information, in some embodiments, time A is the start position of SSB#x in the SSB burst after T time units, where SSB#x is the SSB with the smallest index value in the SSB burst indicated by the SSB index indication information. In the case where the T value is a fixed value, the start of the T value ranges from the time interval between the start positions of SSB#x in adjacent SSB bursts, that is, 5 ms continuously. Accordingly, if the start of the T value is the end position of the slot or symbol in which the terminal device receives the OD-SSB indication information sent by the network device, the end position of the slot or symbol in which the terminal device receives the OD-SSB indication information sent by the network device should be within 5 ms continuously, or if the start of the T value is the end position of the slot or symbol in which the terminal device sends the HARQ-ACK corresponding to the OD-SSB indication information, the end position of the slot or symbol in which the terminal device sends the HARQ-ACK corresponding to the OD-SSB indication information should be within 5 ms continuously.

[0143] FIG. 9 takes the SSB subcarrier spacing as 15 kHz, the T value as 3 ms, and the actually transmitted SSBs as the SSBs with index values of 3, 4, and 5 in an SSB burst as an example for illustration. In the example of FIG. 9, time point A is the starting position of the first SSB #3 (i.e., SSB #x is SSB #3) after T time units. After receiving the OD-SSB indication information, the terminal device should determine the position of the first SSB #3 according to the T value, that is, the earliest time point determined by the terminal device according to the T value should be later than the starting position of the first symbol of SSB #3 in slot n-4, and the latest time point determined by the terminal device according to the T value should be no later than the starting position of the first symbol of SSB #3 in slot n+1. That is, as shown in FIG. 9, the starting point of the T value should be no earlier than the starting position of the first symbol of SSB #3 in slot n-4, and the starting point of the T value should be no later than the starting position of the first symbol of SSB #3 in slot n+1. The range of the starting point of the T value includes slots or symbols between symbol 8 of slot n-4 and symbol 7 of slot n+1.

[0144] Case 2: The first time length (denoted as T value) is a dynamically indicated value

[0145] In some embodiments, the first time length is a dynamically indicated value. For example, the first time length is a value indicated by the network device through a MAC CE or a DCI.

[0146] In some embodiments, the value range of the first time length is predefined, or the value range of the first time length is configured by the network device (for example, configured through RRC signaling). For example, the network device configures the value range of the first time length as {T1, T2, T3, T4} through RRC signaling, and indicates which one of T1, T2, T3, and T4 is the first time length carried in the current MAC CE or DCI through a MAC CE or a DCI. Wherein, T1, T2, T3, and T4 represent different values of the first time length.

[0147] In some embodiments, the OD-SSB indication information and the first time length are carried in the same MAC CE.

[0148] In some embodiments, the OD-SSB indication information and the first time length are carried in the same DCI.

[0149] In the related art, time A is the first actually transmitted SSB in the SSB burst T time slots or symbols later. The following is an example of T value as the value carried by the MAC CE. In the case of T value as the value carried by the MAC CE, since the MAC CE is transmitted by PDSCH, HARQ retransmission is supported, and therefore the range in which the value indicated by the MAC CE remains unchanged each time is the time interval between adjacent two SSB transmission opportunities. That is, taking the start of the T value as an example, the end position of the MAC CE received by the terminal device from the network device, as shown in FIG. 7, the end position of the initial transmission and the end position of the retransmission of the same MAC CE should occur on the 6 symbols between symbol 2 and symbol 7 of time slot n-2, which is obviously unreasonable. A solution is that when the MAC CE carries the T value, the MAC CE does not support retransmission. But this solution will cause the performance of the terminal device receiving PDSCH to decline, and the spectral efficiency of the spectrum resource to decrease. In the extreme case, it may even cause the terminal device to be unable to correctly receive PDSCH.

[0150] In order to enable the MAC CE carrying the T value to be retransmitted within a certain time range, in some embodiments, time A is the start position of the first SSB burst T time units later, or time A is the start position of the half frame in which the first SSB burst T time units later. The terminal device can determine the SSB index value of the actually transmitted SSB in the SSB burst according to the SSB index value indicated by the SSB index indication information. The range in which the value indicated by the MAC CE remains unchanged is the time interval between the start positions of adjacent two SSB bursts, i.e. one half frame (5 ms). Similarly, taking the start of the T value as an example, the end position of the MAC CE received by the terminal device from the network device, that is, as shown in FIG. 8, the end position of the initial transmission and the end position of the retransmission of the same MAC CE should occur on the 5 time slots between time slot n-8 and time slot n-4.

[0151] In some embodiments, the time instant A is the start position of the first SSB burst after T time units. The terminal device can determine whether the SSB burst is located in the first half frame or the second half frame in a radio frame according to the SSB half frame indication information. The terminal device can determine the SSB index value actually transmitted in the SSB burst according to the SSB index value indicated by the SSB index indication information. The range in which the value indicated by the MAC CE remains unchanged is the time interval between the start positions of adjacent SSB bursts, i.e., one radio frame (10 ms). That is, if the start of the T value is the end position at which the terminal device receives the MAC CE sent by the network device, the end position of the initial transmission and the end position of the retransmission of the same MAC CE should occur within 10 ms consecutively. If the start of the T value is the end position of the HARQ-ACK corresponding to the MAC CE sent by the terminal device, the end position of the HARQ-ACK corresponding to the initial transmission and the end position of the HARQ-ACK corresponding to the retransmission of the same MAC CE should occur within 10 ms consecutively.

[0152] In some embodiments, the time instant A is the start position of SSB#x in the SSB burst after T time units, where SSB#x is the SSB with the smallest SSB index value in the SSB burst indicated by the SSB index indication information. The range in which the value indicated by the MAC CE remains unchanged is the time interval between the start positions of SSB#x in adjacent SSB bursts, i.e., 5 ms consecutively. That is, if the start of the T value is the end position at which the terminal device receives the MAC CE sent by the network device, the end position of the initial transmission and the end position of the retransmission of the same MAC CE should occur within 5 ms consecutively. If the start of the T value is the end position of the HARQ-ACK corresponding to the MAC CE sent by the terminal device, the end position of the HARQ-ACK corresponding to the initial transmission and the end position of the HARQ-ACK corresponding to the retransmission of the same MAC CE should occur within 5 ms consecutively.

[0153] In some embodiments, the start of the T value is the start position of the half frame at which the terminal device receives the OD-SSB indication information sent by the network device, or the end position of the half frame at which the terminal device receives the OD-SSB indication information sent by the network device. That is, the T value indicated by the MAC CE received within a half frame has the same start position, i.e., the MAC CE transmitted within a half frame can indicate the same T value, and thus the initial transmission and the retransmission of the same MAC CE can occur within the same half frame.

[0154] In some embodiments, the starting point of the T value is the starting position of the wireless frame in which the terminal device receives the OD-SSB indication information sent by the network device, or the ending position of the wireless frame in which the terminal device receives the OD-SSB indication information sent by the network device. That is, the T value indicated by the MAC CE received within the wireless frame has the same starting position, that is, the MAC CE transmitted within the wireless frame can indicate the same T value, so that the initial transmission and retransmission of the same MAC CE can occur within the same wireless frame.

[0155] In some embodiments, the time interval between the ending position of the HARQ-ACK information corresponding to the MAC CE carrying the OD-SSB indication information sent by the terminal device and the first actually transmitted SSB is greater than or equal to the processing time length of the terminal device for the MAC CE; or the network device should ensure that the time interval between the ending position of the HARQ-ACK information corresponding to the MAC CE carrying the OD-SSB indication information sent by the terminal device and the first actually transmitted SSB is greater than or equal to the processing time length of the terminal device for the MAC CE.

[0156] In some embodiments, the time interval between the ending position of the HARQ-ACK information corresponding to the MAC CE carrying the OD-SSB indication information sent by the terminal device and the first actually transmitted SSB is greater than or equal to the processing time length of the terminal device for the MAC CE; or the network device should ensure that the time interval between the ending position of the HARQ-ACK information corresponding to the MAC CE carrying the OD-SSB indication information sent by the terminal device and the first actually transmitted SSB is greater than or equal to the processing time length of the terminal device for the MAC CE.

[0157] In some embodiments, the time interval between the ending position of the MAC CE carrying the OD-SSB indication information received by the terminal device and the first actually transmitted SSB is greater than or equal to the processing time length of the terminal device for the MAC CE; or the network device should ensure that the time interval between the ending position of the MAC CE carrying the OD-SSB indication information and the first actually transmitted SSB is greater than or equal to the processing time length of the terminal device for the MAC CE.

[0158] In some embodiments, the time interval between the ending position of the MAC CE carrying the OD-SSB indication information received by the terminal device and the first actually transmitted SSB is greater than or equal to the processing time length of the terminal device for the MAC CE; or the network device should ensure that the time interval between the ending position of the MAC CE carrying the OD-SSB indication information and the first actually transmitted SSB is greater than or equal to the processing time length of the terminal device for the MAC CE.

[0159] In some embodiments, the unit of T is half frame, i.e. 5 ms. It can be understood that when the unit of T is 5 ms, the overhead of signaling can be reduced.

[0160] FIG. 10 illustrates an example in which the SSB subcarrier spacing is 15 kHz, the unit of T is 5 ms, and the actually transmitted SSBs are SSBs with SSB index values of 3, 4, and 5 in an SSB burst. In the example of FIG. 10, if the network device transmits a MAC CE carrying OD-SSB indication information and a T value on a time resource between slot n-10 and slot n-6, the T value in the MAC CE indicates 2, where the start of T is the start of the half frame in which the MAC CE is received, i.e. the start of slot n-10, and the length of T is 2*5=10 ms. After receiving the MAC CE, the terminal device can determine that time A is a time 10 ms after the start of slot n-10, i.e. the start of slot n. That is, the terminal device can determine that the start of slot n is the start of the first SSB burst (i.e. the start of the half frame in which the first SSB burst is located).

[0161] In the example of FIG. 10, if the network device transmits a MAC CE carrying OD-SSB indication information and a T value on a time resource between slot n-5 and slot n-1, the T value in the MAC CE indicates 1, where the start of T is the start of the half frame in which the MAC CE is received, i.e. the start of slot n-5, and the length of T is 1*5=5 ms. After receiving the MAC CE, the terminal device can determine that time A is a time 5 ms after the start of slot n-5, i.e. the start of slot n. That is, the terminal device can determine that the start of slot n is the start of the first SSB burst.

[0162] It is worth noting that before determining the first actually transmitted SSB, the terminal device should have sufficient MAC CE processing time, or the network device should ensure that the terminal device has sufficient MAC CE processing time. In the example of FIG. 10, it is assumed that the network device should ensure that the time interval between the MAC CE carrying the OD-SSB indication information and the first actually transmitted SSB (i.e. SSB #3) is greater than or equal to the processing time length of the terminal device for the MAC CE, which is 3 ms, and the network device should not transmit the MAC CE indication information within the time range indicated by the MAC CE processing delay in FIG. 10.

[0163] It should be noted that in the foregoing method embodiments, the technical solutions of the present application are described from the perspective of the interaction between the terminal device and the network device. The steps performed by the terminal device described above can be implemented alone as a wireless communication method on the terminal device side, and the steps performed by the network device described above can be implemented alone as a wireless communication method on the network device side.

[0164] The following is a device embodiment of the present application, which can be used to execute the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

[0165] Please refer to FIG. 11, which shows a block diagram of a wireless communication device according to an embodiment of the present application. The device has the functions of implementing the method examples described above on the terminal device side, which can be implemented by hardware or by executing corresponding software by hardware. The device can be the terminal device described above or can be arranged in the terminal device. As shown in FIG. 11, the device 1100 can include a receiving module 1110 and a processing module 1120.

[0166] The receiving module 1110 is configured to receive first indication information, wherein the first indication information is used to determine the time domain position of a target SSB burst on a first cell, and the first cell is a deactivated secondary cell configured for the terminal device.

[0167] The processing module 1120 is configured to determine the time domain position of the target SSB burst on the first cell according to the first indication information and a first time length.

[0168] In some embodiments, the time domain position of the target SSB burst includes one of the following cases: a starting position of a first SSB burst in the target SSB burst; a starting position of a first transmitted SSB in a first SSB burst in the target SSB burst; a starting position of a first SSB in a first SSB burst in the target SSB burst, wherein the first SSB is an SSB with the smallest SSB index value determined according to second indication information, and the second indication information is used to determine the index value of a transmitted SSB in the target SSB burst; a starting position of a second SSB in a first SSB burst in the target SSB burst, wherein the second SSB is an SSB with the smallest SSB index value determined according to third indication information, and the third indication information is used to determine the index value of a SSB for measurement in the target SSB burst.

[0169] In some embodiments, the first SSB burst includes: a first SSB burst in the target SSB burst after receiving the first indication information; or a first SSB burst in the target SSB burst after receiving the first indication information and after the first time length.

[0170] In some embodiments, the time domain position of the target SSB burst includes a starting position of the first SSB burst, and the processing module 1120 is further configured to determine the starting position of the first SSB in the first SSB burst according to the second indication information, or determine the starting position of the second SSB in the first SSB burst according to the third indication information.

[0171] In some embodiments, the processing module 1120 is further configured to determine the time domain position of each SSB burst in the target SSB burst according to the time domain position of the first SSB burst and a first SSB period.

[0172] In some embodiments, the first SSB period is determined according to the first indication information, or the first SSB period is determined according to the second indication information, or the first SSB period is determined according to the third indication information.

[0173] In some embodiments, the starting point of the first time length is determined according to one of the following: an ending position of a symbol where a first downlink channel carrying the first indication information is located; an ending position of a slot where the first downlink channel carrying the first indication information is located; a starting position of the slot where the first downlink channel carrying the first indication information is located; an ending position of a half frame where the first downlink channel carrying the first indication information is located; a starting position of the half frame where the first downlink channel carrying the first indication information is located; an ending position of a radio frame where the first downlink channel carrying the first indication information is located; a starting position of the radio frame where the first downlink channel carrying the first indication information is located; an ending position of a symbol where a first uplink channel carrying a first HARQ-ACK is located; an ending position of a slot where the first uplink channel carrying the first HARQ-ACK is located; a starting position of the slot where the first uplink channel carrying the first HARQ-ACK is located; an ending position of a half frame where the first uplink channel carrying the first HARQ-ACK is located; a starting position of the half frame where the first uplink channel carrying the first HARQ-ACK is located; an ending position of a radio frame where the first uplink channel carrying the first HARQ-ACK is located; a starting position of the radio frame where the first uplink channel carrying the first HARQ-ACK is located; wherein the first HARQ-ACK is a HARQ-ACK corresponding to the first downlink channel.

[0174] In some embodiments, the first time length is determined according to RRC signaling configured by a network device, or the first time length is determined according to a MAC CE sent by the network device, or the first time length is determined according to a DCI sent by the network device.

[0175] In some embodiments, the first indication information is further used to determine the first time length.

[0176] In some embodiments, the first time length is determined according to a preset parameter.

[0177] In some embodiments, the second indication information is further used to determine the first time length; or the third indication information is further used to determine the first time length.

[0178] In some embodiments, the first time length is greater than or equal to a first processing time length, and the first processing time length is determined according to a processing time length of the terminal device for a MAC CE.

[0179] In some embodiments, in a case where the first indication information is a MAC CE and the MAC CE is transmitted through a first downlink channel, one of the following conditions is met: a time interval between an end position of a symbol where the first downlink channel is located and a start position of a first SSB is greater than or equal to the first time length; the time interval between the end position of the symbol where the first downlink channel is located and the start position of the first SSB is greater than or equal to a processing time length of the terminal device for the MAC CE; a time interval between an end position of a symbol where the first downlink channel is located and a start position of a second SSB is greater than or equal to the first time length; the time interval between the end position of the symbol where the first downlink channel is located and the start position of the second SSB is greater than or equal to the processing time length of the terminal device for the MAC CE; a time interval between an end position of a symbol where a first uplink channel is located and a start position of the first SSB is greater than or equal to the first time length; the time interval between the end position of the symbol where the first uplink channel is located and the start position of the first SSB is greater than or equal to the processing time length of the terminal device for the MAC CE; a time interval between an end position of a symbol where the first uplink channel is located and a start position of the second SSB is greater than or equal to the first time length; the time interval between the end position of the symbol where the first uplink channel is located and the start position of the second SSB is greater than or equal to the processing time length of the terminal device for the MAC CE; wherein the first SSB is an SSB with a smallest SSB index value among SSBs transmitted in the target SSB burst; the second SSB is an SSB with a smallest SSB index value among SSBs for measurement in the target SSB burst; the first uplink channel is used to transmit a first HARQ-ACK, and the first HARQ-ACK is a HARQ-ACK corresponding to the first downlink channel.

[0180] In some embodiments, the first processing time length is 3 milliseconds; and / or the processing time length of the terminal device for the MAC CE is 3 milliseconds.

[0181] In some embodiments, the unit of the first time length is one of the following: a time slot, a symbol, a half frame, a radio frame.

[0182] Referring to FIG. 12, a block diagram of a wireless communication device provided by another embodiment of the present application is shown. The device has the functions of implementing the method examples on the network device side described above, which can be implemented by hardware, or by executing corresponding software by hardware. The device can be the network device introduced above, or can be arranged in the network device. As shown in FIG. 12, the device 1200 can include a sending module 1210.

[0183] The sending module 1210 is configured to send first indication information, the first indication information being used to determine a time domain position of a target SSB burst on a first cell, the first cell being a deactivated secondary cell configured for a terminal device, wherein the time domain position of the target SSB burst on the first cell is determined based on the first indication information and a first time length.

[0184] In some embodiments, the time domain position of the target SSB burst includes one of the following: a starting position of a first SSB burst in the target SSB burst; a starting position of a first transmitted SSB in the first SSB burst in the target SSB burst; a starting position of a first SSB in the first SSB burst in the target SSB burst, the first SSB being an SSB with a minimum SSB index value determined according to second indication information, the second indication information being used to determine index values of SSBs transmitted in the target SSB burst; a starting position of a second SSB in the first SSB burst in the target SSB burst, the second SSB being an SSB with a minimum SSB index value determined according to third indication information, the third indication information being used to determine index values of SSBs for measurement in the target SSB burst.

[0185] In some embodiments, the first SSB burst includes one of the following: a first SSB burst in the target SSB burst after receiving the first indication information; or a first SSB burst in the target SSB burst after receiving the first indication information and the first time length.

[0186] In some embodiments, the time domain position of the target SSB burst includes a starting position of the first SSB burst, and the starting position of the first SSB in the first SSB burst is determined according to the second indication information, or the starting position of the second SSB in the first SSB burst is determined according to the third indication information.

[0187] In some embodiments, the time domain position of each SSB burst in the target SSB burst is determined according to the time domain position of the first SSB burst and a first SSB period.

[0188] In some embodiments, the first SSB period is determined according to the first indication information; or the first SSB period is determined according to the second indication information; or the first SSB period is determined according to the third indication information.

[0189] In some embodiments, the starting point of the first time length is determined according to one of the following: an ending position of a symbol where the first downlink channel carrying the first indication information is located; an ending position of a slot where the first downlink channel carrying the first indication information is located; a starting position of a slot where the first downlink channel carrying the first indication information is located; an ending position of a half frame where the first downlink channel carrying the first indication information is located; a starting position of a half frame where the first downlink channel carrying the first indication information is located; an ending position of a radio frame where the first downlink channel carrying the first indication information is located; a starting position of a radio frame where the first downlink channel carrying the first indication information is located; an ending position of a symbol where the first uplink channel carrying the first HARQ-ACK is located; an ending position of a slot where the first uplink channel carrying the first HARQ-ACK is located; a starting position of a slot where the first uplink channel carrying the first HARQ-ACK is located; an ending position of a half frame where the first uplink channel carrying the first HARQ-ACK is located; a starting position of a half frame where the first uplink channel carrying the first HARQ-ACK is located; an ending position of a radio frame where the first uplink channel carrying the first HARQ-ACK is located; a starting position of a radio frame where the first uplink channel carrying the first HARQ-ACK is located; wherein the first HARQ-ACK is a HARQ-ACK corresponding to the first downlink channel.

[0190] In some embodiments, the first time length is determined according to RRC signaling configured by the network device; or the first time length is determined according to MAC CE sent by the network device; or the first time length is determined according to DCI sent by the network device.

[0191] In some embodiments, the first indication information is also used to determine the first time length.

[0192] In some embodiments, the first time length is determined according to a preset parameter.

[0193] In some embodiments, the second indication information is also used to determine the first time length; or the third indication information is also used to determine the first time length.

[0194] In some embodiments, the first time length is greater than or equal to a first processing time length, and the first processing time length is determined according to a processing time length of the terminal device for the MAC CE.

[0195] In some embodiments, in the case that the first indication information is a MAC CE and the MAC CE is transmitted through a first downlink channel, one of the following conditions is met: a time interval between an end position of a symbol where the first downlink channel is located and a start position of a first SSB is greater than or equal to the first time length; a time interval between the end position of the symbol where the first downlink channel is located and the start position of the first SSB is greater than or equal to a processing time length of the terminal device for the MAC CE; a time interval between the end position of the symbol where the first downlink channel is located and a start position of a second SSB is greater than or equal to the first time length; a time interval between the end position of the symbol where the first downlink channel is located and the start position of the second SSB is greater than or equal to the processing time length of the terminal device for the MAC CE; a time interval between an end position of a symbol where a first uplink channel is located and the start position of the first SSB is greater than or equal to the first time length; a time interval between the end position of the symbol where the first uplink channel is located and the start position of the first SSB is greater than or equal to the processing time length of the terminal device for the MAC CE; a time interval between the end position of the symbol where the first uplink channel is located and the start position of the second SSB is greater than or equal to the first time length; a time interval between the end position of the symbol where the first uplink channel is located and the start position of the second SSB is greater than or equal to the processing time length of the terminal device for the MAC CE; wherein the first SSB is an SSB with a smallest SSB index value among SSBs transmitted in the target SSB burst; the second SSB is an SSB with a smallest SSB index value among SSBs for measurement in the target SSB burst; the first uplink channel is used to transmit a first HARQ-ACK, and the first HARQ-ACK is a HARQ-ACK corresponding to the first downlink channel.

[0196] In some embodiments, the first processing time length is 3 milliseconds; and / or the processing time length of the terminal device for the MAC CE is 3 milliseconds.

[0197] In some embodiments, the unit of the first time length is one of the following: a time slot, a symbol, a half frame, a radio frame.

[0198] It should be noted that the apparatus provided in the above embodiments, when implementing its functions, only divides the above-mentioned various functional modules for example, and in actual application, the above-mentioned functions can be completed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0199] As for the apparatus in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments of the method, and will not be described in detail here.

[0200] Referring to FIG. 13, a structural schematic diagram of a terminal device 1300 is shown according to an embodiment of the present application. The terminal device 1300 can be used to execute the method steps performed by the terminal device in the above embodiments. The terminal device 1300 can include a processor 1301, a transceiver 1302, and a memory 1303. The transceiver 1302 is configured to implement a sending or receiving function, such as the function of the above-mentioned receiving module 1110. The processor 1301 can be configured to implement other processing functions or control the sending and / or receiving, such as the function of the above-mentioned processing module 1120.

[0201] The processor 1301 includes one or more processing cores. The processor 1301 executes various functional applications and information processing by running software programs and modules.

[0202] The transceiver 1302 can include a receiver and a transmitter, which can be implemented as the same wireless communication component, and the wireless communication component can include a wireless communication chip and a radio frequency antenna.

[0203] The memory 1303 can be connected to the processor 1301 and the transceiver 1302.

[0204] The memory 1303 can be used to store computer programs executed by the processor 1301, and the processor 1301 is configured to execute the computer programs to implement each step of the first terminal device in the above method embodiments.

[0205] In addition, the memory 1303 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: a magnetic or optical disk, an electrically erasable programmable read-only memory, an erasable programmable read-only memory, a static random access memory, a read-only memory, a magnetic storage, a flash memory, and a programmable read-only memory.

[0206] In some embodiments, the transceiver 1302 is configured to receive first indication information, the first indication information being used to determine a time domain position of a target SSB burst on a first cell, the first cell being a deactivated secondary cell configured for the terminal device. The processor 1301 is configured to determine the time domain position of the target SSB burst on the first cell according to the first indication information and a first time length.

[0207] For details not described in the above embodiments, refer to the description in the method embodiments above, which will not be repeated here.

[0208] Please refer to FIG. 14, which shows a structural schematic diagram of a network device 1400 provided in an embodiment of the present application. The network device 1400 can be used to execute the method steps executed by the network device in the above embodiments. The network device 1400 can include a processor 1401, a transceiver 1402, and a memory 1403. The transceiver 1402 is configured to implement a sending or receiving function, such as the function of the sending module 1210 described above, and the processor 1401 can be configured to implement other processing functions or control the sending and / or receiving.

[0209] The processor 1401 includes one or more processing cores. The processor 1401 executes various functional applications and information processing by running software programs and modules.

[0210] The transceiver 1402 can include a receiver and a transmitter. For example, the transceiver 1402 can include a wired communication component, which can include a wired communication chip and a wired interface (such as a fiber interface). Alternatively, the transceiver 1402 can also include a wireless communication component, which can include a wireless communication chip and a radio frequency antenna.

[0211] The memory 1403 can be connected to the processor 1401 and the transceiver 1402.

[0212] The memory 1403 can be used to store computer programs executed by the processor. The processor 1401 is configured to execute the computer programs to implement each step of the network device in the above method embodiments.

[0213] In addition, the memory 1403 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: a magnetic or optical disk, an electrically erasable programmable read-only memory, an erasable programmable read-only memory, a static random access memory, a read-only memory, a magnetic storage, a flash memory, and a programmable read-only memory.

[0214] In some embodiments, the transceiver 1402 is configured to send first indication information, the first indication information being used to determine a time domain position of a target SSB burst on a first cell, the first cell being a deactivated secondary cell configured for the terminal device, and the time domain position of the target SSB burst on the first cell is determined based on the first indication information and a first time length.

[0215] For details not described in the present embodiment, refer to the above embodiments, which will not be repeated here.

[0216] The embodiments of the present application further provide a computer readable storage medium, wherein the storage medium stores a computer program, and the computer program is used to be executed by a processor to implement the wireless communication method at the terminal device side or the wireless communication method at the network device side. In some embodiments, the computer readable storage medium can include a ROM (Read-Only Memory), a RAM (Random-Access Memory), a SSD (Solid State Drives) or an optical disc, etc. The RAM can include a ReRAM (Resistance Random Access Memory) and a DRAM (Dynamic Random Access Memory).

[0217] The embodiments of the present application further provide a chip, which includes a programmable logic circuit and / or program instructions, and when the chip is running, is used to implement the wireless communication method at the terminal device side or the wireless communication method at the network device side.

[0218] The embodiments of the present application further provide a computer program product, which includes computer instructions stored in a computer readable storage medium, and a processor reads and executes the computer instructions from the computer readable storage medium to implement the wireless communication method at the terminal device side or the wireless communication method at the network device side.

[0219] It should be understood that the "indication" mentioned in the embodiments of the present application can be direct indication, or indirect indication, or can be an indication of an associated relationship. For example, A indicates B, which can mean that B can be obtained by A directly; or A indirectly indicates B, for example, A indicates C, and B can be obtained by C; or A and B have an associated relationship.

[0220] In the description of the embodiments of the present application, the term "corresponding" can mean that there is a direct or indirect corresponding relationship between the two, or can mean that there is an associated relationship between the two, or can mean an indication and being indicated, configuration and being configured, etc.

[0221] In some embodiments of the present application, "predefined" can be implemented by pre-storing corresponding codes, tables or other means for indicating related information in devices (for example, including terminal devices and network devices), and the present application does not limit the specific implementation manner. For example, predefined can mean defined in a protocol.

[0222] In some embodiments of the present application, the "protocol" can refer to a standard protocol in the communication field, which can include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, and the present application is not limited thereto.

[0223] "Multiple" mentioned in the present application refers to two or more. "And / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent three cases: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after it are in an "or" relationship.

[0224] "Greater than or equal to" mentioned in the present application can mean greater than or equal to, and "less than or equal to" can mean less than or equal to.

[0225] In addition, the step numbers described in the present application only exemplarily show a possible execution order between steps, and in some other embodiments, the above steps can also be executed in a sequence different from the number, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in an order opposite to the illustration, and the embodiments of the present application are not limited thereto.

[0226] Those skilled in the art should realize that in one or more of the above examples, the functions described in the embodiments of the present application can be realized by hardware, software, firmware or any combination thereof. When realized by software, these functions can be stored in a computer readable medium or transmitted as one or more instructions or codes on a computer readable medium. The computer readable medium includes computer storage medium and communication medium, wherein the communication medium includes any medium facilitating the transmission of computer programs from one place to another. The storage medium can be any available medium accessible by a general or special purpose computer.

[0227] The above only describes exemplary embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method of wireless communication, the method comprising: The method is performed by a terminal device, and the method comprises: receiving first indication information, the first indication information being used to determine a time domain position of a target synchronization signal block (SSB) burst on a first cell, the first cell being a deactivated secondary cell configured for the terminal device; determining the time domain position of the target SSB burst on the first cell according to the first indication information and a first time length.

2. The method of claim 1, wherein, The time domain position of the target SSB burst comprises one of the following cases: a starting position of a first SSB burst in the target SSB burst; a starting position of a first transmitted SSB in a first SSB burst in the target SSB burst; a starting position of a first SSB in a first SSB burst in the target SSB burst, the first SSB being an SSB with a smallest SSB index value determined according to second indication information, the second indication information being used to determine SSB index values of SSBs transmitted in the target SSB burst; a starting position of a second SSB in a first SSB burst in the target SSB burst, the second SSB being an SSB with a smallest SSB index value determined according to third indication information, the third indication information being used to determine SSB index values of SSBs for measurement in the target SSB burst.

3. The method of claim 2, wherein, The first SSB burst comprises: a first SSB burst in the target SSB burst after receiving the first indication information; or a first SSB burst in the target SSB burst after receiving the first indication information and after the first time length.

4. The method according to claim 2 or 3, characterized in that, The time domain position of the target SSB burst comprises a starting position of the first SSB burst, and the method further comprises: determining the starting position of the first SSB in the first SSB burst according to the second indication information; or determining the starting position of the second SSB in the first SSB burst according to the third indication information.

5. The method according to any one of claims 2 to 4, characterized in that, The method further comprises: determining time domain positions of each SSB burst in the target SSB burst according to the time domain position of the first SSB burst and a first SSB period.

6. The method of claim 5, wherein: The first SSB period is determined according to the first indication information; or The first SSB period is determined according to the second indication information; or The first SSB period is determined according to the third indication information.

7. The method according to any one of claims 1 to 6, characterized in that, The starting point of the first time length is determined according to one of the following cases: an ending position of a symbol in which a first downlink channel carrying the first indication information is located; an ending position of a slot in which the first downlink channel carrying the first indication information is located; a starting position of a slot in which the first downlink channel carrying the first indication information is located; an ending position of a half frame in which the first downlink channel carrying the first indication information is located; a starting position of a half frame in which the first downlink channel carrying the first indication information is located; an ending position of a radio frame in which the first downlink channel carrying the first indication information is located; a starting position of a radio frame in which the first downlink channel carrying the first indication information is located; an ending position of a symbol where a first uplink channel carrying a first hybrid automatic repeat request-acknowledgement (HARQ-ACK) is located; an ending position of a slot where the first uplink channel carrying the first HARQ-ACK is located; a starting position of the slot where the first uplink channel carrying the first HARQ-ACK is located; an ending position of a half frame where the first uplink channel carrying the first HARQ-ACK is located; a starting position of the half frame where the first uplink channel carrying the first HARQ-ACK is located; an ending position of a radio frame where the first uplink channel carrying the first HARQ-ACK is located; a starting position of the radio frame where the first uplink channel carrying the first HARQ-ACK is located; wherein the first HARQ-ACK is a HARQ-ACK corresponding to the first downlink channel.

8. The method of any one of claims 1-7, wherein: the first time length is determined according to radio resource control (RRC) signaling configured by a network device; or the first time length is determined according to a medium access control (MAC) control element (CE) sent by the network device; or the first time length is determined according to downlink control information (DCI) sent by the network device.

9. The method according to any one of claims 1 to 8, characterized in that, the first indication information is further used to determine the first time length.

10. The method according to any one of claims 1 to 7, characterized in that, the first time length is determined according to a preset parameter.

11. The method of claim 2 or 4, wherein: the second indication information is further used to determine the first time length; or the third indication information is further used to determine the first time length.

12. The method according to any one of claims 1 to 11, characterized in that, the first time length is greater than or equal to a first processing time length, which is determined according to a processing time length of the MAC CE by the terminal device.

13. The method according to any one of claims 1 to 12, characterized in that, in a case where the first indication information is the MAC CE and the MAC CE is transmitted through a first downlink channel, one of the following conditions is met: a time interval between an ending position of a symbol where the first downlink channel is located and a starting position of a first synchronization signal block (SSB) is greater than or equal to the first time length; the time interval between the ending position of the symbol where the first downlink channel is located and the starting position of the first SSB is greater than or equal to a processing time length of the MAC CE by the terminal device; a time interval between an ending position of a symbol where the first uplink channel is located and a starting position of a second SSB is greater than or equal to the first time length; the time interval between the ending position of the symbol where the first uplink channel is located and the starting position of the second SSB is greater than or equal to the processing time length of the MAC CE by the terminal device. ​ ​ ​ a time interval between an ending position of a symbol where the first uplink channel is located and a starting position of the second SSB is greater than or equal to a processing time length of the terminal device for the MAC CE; wherein the first SSB is an SSB with a smallest SSB index value among SSBs transmitted in the target SSB burst; the second SSB is an SSB with a smallest SSB index value among SSBs for measurement in the target SSB burst; the first uplink channel is used to transmit a first HARQ-ACK, and the first HARQ-ACK is a HARQ-ACK corresponding to the first downlink channel.

14. The method of claim 12 or 13, wherein the first processing time length is 3 milliseconds; and / or the processing time length of the terminal device for the MAC CE is 3 milliseconds.

15. The method according to any one of claims 1 to 14, characterized in that, the first time length is in units of one of the following: a slot, a symbol, a half frame, and a radio frame.

16. A method of wireless communication, the method comprising: The method is performed by a network device, and the method comprises: sending first indication information, the first indication information being used to determine a time domain position of a target synchronization signal block (SSB) burst on a first cell, the first cell being a deactivated secondary cell configured for a terminal device, wherein the time domain position of the target SSB burst on the first cell is determined based on the first indication information and a first time length.

17. The method of claim 16, wherein, The time domain position of the target SSB burst comprises one of the following: a starting position of a first SSB burst in the target SSB burst; a starting position of a first transmitted SSB in the first SSB burst in the target SSB burst; a starting position of a first SSB in the first SSB burst in the target SSB burst, the first SSB being an SSB with a smallest SSB index value determined according to second indication information, the second indication information being used to determine index values of SSBs transmitted in the target SSB burst; a starting position of a second SSB in the first SSB burst in the target SSB burst, the second SSB being an SSB with a smallest SSB index value determined according to third indication information, the third indication information being used to determine index values of SSBs for measurement in the target SSB burst.

18. The method of claim 17, wherein, The first SSB burst comprises: a first SSB burst in the target SSB burst after receiving the first indication information; or a first SSB burst in the target SSB burst after receiving the first indication information and after the first time length.

19. The method of claim 17 or 18, wherein, The time domain position of the target SSB burst comprises a starting position of the first SSB burst, the starting position of the first SSB in the first SSB burst is determined according to the second indication information; or the starting position of the second SSB in the first SSB burst is determined according to the third indication information.

20. The method according to any one of claims 17 to 19, characterized in that, The time domain position of each SSB burst in the target SSB burst is determined according to the time domain position of the first SSB burst and a first SSB period.

21. The method of claim 20, wherein the first SSB period is determined according to the first indication information; or the first SSB period is determined according to the first indication information and a second indication information. The first SSB period is determined according to the second indication information. The first SSB period is determined according to the third indication information.

22. The method according to any one of claims 16 to 21, characterized in that, The start of the first time length is determined according to one of the following conditions: An end position of a symbol where a first downlink channel carrying the first indication information is located; An end position of a slot where the first downlink channel carrying the first indication information is located; A start position of a slot where the first downlink channel carrying the first indication information is located; An end position of a half frame where the first downlink channel carrying the first indication information is located; A start position of a half frame where the first downlink channel carrying the first indication information is located; An end position of a radio frame where the first downlink channel carrying the first indication information is located; A start position of a radio frame where the first downlink channel carrying the first indication information is located; An end position of a symbol where a first uplink channel carrying a first hybrid automatic repeat request-acknowledgement (HARQ-ACK) is located; An end position of a slot where the first uplink channel carrying the first HARQ-ACK is located; A start position of a slot where the first uplink channel carrying the first HARQ-ACK is located; An end position of a half frame where the first uplink channel carrying the first HARQ-ACK is located; A start position of a half frame where the first uplink channel carrying the first HARQ-ACK is located; An end position of a radio frame where the first uplink channel carrying the first HARQ-ACK is located; A start position of a radio frame where the first uplink channel carrying the first HARQ-ACK is located; The first HARQ-ACK is a HARQ-ACK corresponding to the first downlink channel.

23. The method of any one of claims 16-22, wherein The first time length is determined according to radio resource control (RRC) signaling configured by a network device; or The first time length is determined according to a medium access control (MAC) control element (CE) sent by the network device; or The first time length is determined according to downlink control information (DCI) sent by the network device.

24. The method according to any one of claims 16 to 23, characterized in that, The first indication information is also used to determine the first time length.

25. The method according to any one of claims 16 to 22, characterized in that, The first time length is determined according to a preset parameter.

26. The method of claim 17 or 19, wherein The second indication information is also used to determine the first time length; or The third indication information is also used to determine the first time length.

27. The method of any one of claims 16 to 26, wherein, The first time length is greater than or equal to a first processing time length, which is determined according to a processing time length of a MAC CE by the terminal device.

28. The method of any one of claims 16 to 27, wherein, In a case where the first indication information is a MAC CE and the MAC CE is transmitted through a first downlink channel, one of the following conditions is met: A time interval between an end position of a symbol where the first downlink channel is located and a start position of a first SSB is greater than or equal to the first time length; A time interval between the end position of the symbol where the first downlink channel is located and the start position of the first SSB is greater than or equal to a processing time length of the MAC CE by the terminal device; a time interval between an end position of a symbol where the first downlink channel is located and a start position of the second SSB is greater than or equal to the first time length; a time interval between an end position of a symbol where the first downlink channel is located and a start position of the second SSB is greater than or equal to a processing time length of the terminal device for the MAC CE; a time interval between an end position of a symbol where the first uplink channel is located and a start position of the first SSB is greater than or equal to the first time length; a time interval between an end position of a symbol where the first uplink channel is located and a start position of the first SSB is greater than or equal to a processing time length of the terminal device for the MAC CE; a time interval between an end position of a symbol where the first uplink channel is located and a start position of the second SSB is greater than or equal to the first time length; a time interval between an end position of a symbol where the first uplink channel is located and a start position of the second SSB is greater than or equal to a processing time length of the terminal device for the MAC CE; the first SSB is an SSB with a smallest SSB index value among SSBs transmitted in the target SSB burst; the second SSB is an SSB with a smallest SSB index value among SSBs for measurement in the target SSB burst; the first uplink channel is used to transmit a first HARQ-ACK, and the first HARQ-ACK is a HARQ-ACK corresponding to the first downlink channel.

29. The method of claim 27 or 28, wherein the first processing time length is 3 milliseconds; and / or the processing time length of the terminal device for the MAC CE is 3 milliseconds.

30. The method of any one of claims 16 to 29, wherein, the first time length is in units of one of the following: a slot, a symbol, a half frame, and a radio frame.

31. A wireless communication device, comprising: The apparatus comprises: a receiving module configured to receive first indication information, the first indication information being used to determine a time domain position of a target synchronization signal block (SSB) burst on a first cell, the first cell being a deactivated secondary cell configured for a terminal device; a processing module configured to determine the time domain position of the target SSB burst on the first cell according to the first indication information and a first time length.

32. A wireless communication device, comprising: The apparatus comprises: a sending module configured to send first indication information, the first indication information being used to determine a time domain position of a target synchronization signal block (SSB) burst on a first cell, the first cell being a deactivated secondary cell configured for a terminal device, wherein the time domain position of the target SSB burst on the first cell is determined based on the first indication information and a first time length.

33. A terminal device, comprising: The terminal device comprises a processor and a memory, the memory storing a computer program, and the processor executes the computer program to implement the method of any one of claims 1 to 15.

34. A network device, comprising: The network device comprises a processor and a memory, the memory storing a computer program, and the processor executes the computer program to implement the method of any one of claims 16 to 30.

35. A computer readable storage medium, characterized in that, The storage medium stores a computer program, which is executed by a processor to implement the method of any one of claims 1-15 or the method of any one of claims 16-30.

36. A chip, comprising: The chip comprises programmable logic circuitry and / or program instructions, which, when the chip is running, are used to implement the method of any one of claims 1-15 or the method of any one of claims 16-30.

37. A computer program product, characterised in that, The computer program product comprises computer instructions stored in a computer readable storage medium, which are read and executed by a processor to implement the method of any one of claims 1-15 or the method of any one of claims 16-30.

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