Wireless communication method, terminal device, and network device

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By configuring the SSB activation mechanism through configuration information, on-demand transmission of SSBs is achieved, solving the problem of high energy consumption of network equipment, especially the static consumption of active antenna units, and optimizing the network energy-saving effect.

WO2026006990A1PCT designated stage Publication Date: 2026-01-08GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

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Patent Information

Application Number: PCT/CN2024/103148
Authority / Receiving Office: WO · WO
Patent Type: Applications
Current Assignee / Owner
Filing Date: 2024-07-02
Publication Date: 2026-01-08

AI Technical Summary

Technical Problem

The lack of a clear solution in the existing technology to transmit synchronization signal blocks (SSBs) on demand leads to high energy consumption of network equipment, especially the static consumption of active antenna elements cannot be optimized.

Method used

The network device sends configuration information to the terminal device to configure the SSB activation mechanism. The terminal device determines the timing of SSB transmission based on the configuration information, thereby enabling on-demand transmission of SSB.

Benefits of technology

It effectively reduces the energy consumption of network equipment, especially the static consumption of active antenna units, and optimizes the network's energy-saving effect.

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Patent Text Reader

Abstract

Provided are a wireless communication method, a terminal device, and a network device. The method comprises: a terminal device receives configuration information, the configuration information being used for configuring an SSB activation mechanism of a first network device. The SSB activation mechanism is configured by means of the configuration information, which facilitates the implementation of on-demand transmission of an SSB, thereby facilitating network energy saving.

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Description

Wireless communication method, terminal device and network device TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and more particularly, to a wireless communication method, a terminal device and a network device. BACKGROUND

[0002] In order to support network energy saving (NES), the related technology proposes to send a synchronization signal block (SSB) on demand. However, there is no clear solution to implement the on-demand sending of SSB.

[0003] SUMMARY

[0004] The present application provides a wireless communication method, a terminal device and a network device. The various aspects involved in the present application are introduced below.

[0005] In a first aspect, a wireless communication method is provided, comprising: receiving, by a terminal device, configuration information, the configuration information being used to configure an activation mechanism of an SSB of a target cell.

[0006] In a second aspect, a wireless communication method is provided, comprising: sending, to a terminal device, configuration information, the configuration information being used to configure an activation mechanism of an SSB of a target cell.

[0007] In a third aspect, a terminal device is provided, comprising: a receiving unit configured to receive configuration information, the configuration information being used to configure an activation mechanism of an SSB of a target cell.

[0008] In a fourth aspect, a network device is provided, comprising: a sending unit configured to send, to a terminal device, configuration information, the configuration information being used to configure an activation mechanism of an SSB of a target cell.

[0009] In a fifth aspect, a terminal device is provided, comprising a transceiver, a memory and a processor, the memory being configured to store a program, the processor being configured to invoke the program in the memory and control the transceiver to receive or send signals, so that the communication device performs the method according to the first aspect.

[0010] In a sixth aspect, a network device is provided, comprising a transceiver, a memory and a processor, the memory being configured to store a program, the processor being configured to invoke the program in the memory and control the transceiver to receive or send signals, so that the communication device performs the method according to the second aspect or the second aspect.

[0011] In a seventh aspect, an apparatus is provided that includes a processor configured to invoke a program from a memory to cause the apparatus to perform the method of any of the first or second aspects.

[0012] In an eighth aspect, a chip is provided that includes a processor configured to invoke a program from a memory to cause a device in which the chip is installed to perform the method of the first or second aspects.

[0013] In a ninth aspect, a computer-readable storage medium is provided that stores a program that causes a computer to perform the method of the first or second aspects.

[0014] In a tenth aspect, a computer program product is provided that includes a program that causes a computer to perform the method of the first or second aspects.

[0015] In an eleventh aspect, a computer program is provided that causes a computer to perform the method of the first or second aspects.

[0016] The embodiments of the present application configure the activation mechanism of SSB by configuration information, which helps to realize the on-demand transmission of SSB, thereby helping to save energy of the network. BRIEF DESCRIPTION OF DRAWINGS

[0017] FIG. 1 is an example of a system architecture of a wireless communication system to which embodiments of the present application can be applied.

[0018] FIG. 2 is a flow diagram of a wireless communication method according to an embodiment of the present application.

[0019] FIG. 3 is a flow diagram of a wireless communication method according to another embodiment of the present application.

[0020] FIG. 4 is a flow diagram of a wireless communication method according to another embodiment of the present application.

[0021] FIG. 5 is a flow diagram of a wireless communication method according to another embodiment of the present application.

[0022] FIG. 6 is a schematic diagram of a structure of a terminal device according to an embodiment of the present application.

[0023] FIG. 7 is a schematic diagram of a structure of a network device according to an embodiment of the present application.

[0024] FIG. 8 is a schematic diagram of an apparatus to which embodiments of the present application can be applied. DETAILED DESCRIPTION

[0025] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0026] Wireless communication system

[0027] FIG. 1 is an example diagram of a system architecture of a wireless communication system 100 to which embodiments of the present application can be applied. The wireless communication system 100 can include a network device 110 and a terminal device 120. The network device 110 can be a device communicating with the terminal device 120. The network device 110 can provide network coverage for a specific geographic area and can communicate with the terminal device 120 located in the coverage area. The terminal device 120 can access a network (such as a wireless network) through the network device 110. Optionally, the wireless communication system 100 can further include a network controller, a mobile management entity, and other network entities, and embodiments of the present application are not limited thereto.

[0028] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a fifth generation (5G) system or new radio (NR), a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), and the like. The technical solutions provided in the present application can also be applied to future communication systems, such as a sixth generation mobile communication system, a satellite communication system, and the like.

[0029] The terminal device in the embodiments of the present application can also be referred to as a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile terminal (MT), a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user apparatus. The terminal device in the embodiments of the present application can refer to a device providing voice and / or data connectivity for a user, and can be used to connect people, things and machines, such as handheld devices with wireless connection function, vehicle-mounted devices, etc. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer (Pad), a notebook computer, a palm computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the terminal device can be used to act as a base station. For example, the terminal device can act as a scheduling entity, which provides sidelink signals between terminal devices in vehicle to everything (V2X) or device to device (D2D), etc. For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and the smart home device communicate with each other without relaying the communication signals through the base station.

[0030] The network device in the embodiments of the present application can be a device for communicating with a terminal device. The network device may, for example, be an access network device or a radio access network device. For example, the network device can be a base station. The base station can broadly cover various names in the following or be replaced by the following names: Node B (Node B), evolved Node B (eNB), next generation Node B (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof.

[0031] Application scenarios of communication system

[0032] At present, the main application scenarios of the communication system (for example, 5G) can include enhanced mobile broadband (eMBB), ultra reliable low latency communication (URLLC), and massive machine type communication (mMTC).

[0033] For eMBB, it can be applied to scenarios in which users obtain multimedia content, services and data, and the demand is growing very rapidly. In addition, eMBB can be deployed in different environments, such as indoor, urban, rural, etc. In different environments, the difference between the ability and demand of eMBB is also large.

[0034] For URLLC, it can be applied to scenarios such as industrial automation, power automation, remote medical operation (surgery), and traffic safety guarantee. The typical characteristics of mMTC include: high connection density, small data volume, delay-insensitive service, low cost of modules, and long service life, etc.

[0035] Radio resource control (RRC) state and mobility management

[0036] Currently, three RRC states of a terminal device are defined in a protocol: an RRC connected state, an RRC idle state, and an RRC inactive state.

[0037] The RRC connected state can refer to a state of the terminal device after completion of a random access procedure and before RRC release. An RRC connection exists between the terminal device and a network device (for example, an access network device). In the RRC connected state, the terminal device can perform data transmission with the network device, such as downlink data transmission and / or uplink data transmission. Alternatively, the terminal device can also perform transmission of a terminal device-specific data channel and / or control channel with the network device to transmit specific information or unicast information of the terminal device.

[0038] In the RRC connected state, the network device can determine cell-level location information of the terminal device, that is, the network device can determine a cell to which the terminal device belongs. In the RRC connected state, after the terminal device moves in location, for example, moves from one cell to another cell, the network device can control the terminal device to perform cell handover. As can be seen, the mobility management of the terminal device in the RRC connected state can include cell handover. In addition, the mobility management of the terminal device in the RRC connected state can be controlled by the network device, and accordingly, the terminal device can switch to a specified cell according to an instruction issued by the network device.

[0039] The RRC idle state refers to a state of the terminal device when the terminal device camps in a cell but does not perform random access. The terminal device usually enters the RRC idle state after power-on or after RRC release. In the RRC idle state, there is no RRC connection between the terminal device and a network device (for example, a camping network device), and the network device does not store a context of the terminal device. In addition, the network device does not establish a connection with a core network for the terminal device. If the terminal device needs to enter the RRC connected state from the RRC idle state, an RRC connection establishment procedure needs to be initiated.

[0040] In RRC idle state, the core network (CN) can send a paging message to the terminal device, that is, the paging procedure can be triggered by the CN. Optionally, the paging area can also be configured by the CN. In some cases, for the terminal device in RRC idle state, when the terminal device moves in location (for example, moves from one cell to another cell), the terminal device can initiate a cell reselection procedure. In other cases, for the terminal device in RRC idle state, when the terminal device needs to access a cell, the terminal device can initiate a cell selection procedure. That is, the mobility management of the terminal device in RRC idle state can include cell reselection and / or cell selection.

[0041] RRC inactive state is a state defined to reduce air interface signaling, quickly recover wireless connection and quickly recover data service. The RRC inactive state is a state between the connected state and the idle state. The terminal device has previously entered the RRC connected state, and then releases the RRC connection with the network device, but the network device saves the context of the terminal device. In addition, the connection established by the network device with the core network for the terminal device is not released, that is, the user plane bearer and the control plane bearer between the RAN and the CN are still maintained, that is, there is a CN-NR connection.

[0042] In RRC inactive state, the RAN can send a paging message to the terminal device, that is, the paging procedure can be triggered by the RAN. The RAN-based paging area is managed by the RAN, and the network device can know the location of the terminal device based on the RAN-based paging area level.

[0043] In some cases, for the terminal device in RRC inactive state, when the terminal device moves in location (for example, moves from one cell to another cell), the terminal device can initiate a cell reselection procedure. In other cases, for the terminal device in RRC inactive state, when the terminal device needs to access a cell, the terminal device can initiate a cell selection procedure. That is, the mobility management of the terminal device in RRC inactive state can include cell reselection and / or cell selection.

[0044] 5G network energy saving project

[0045] Energy consumption has become an important part of the operator's operational cost. According to the report of global system for mobile communications association (GSMA), the energy cost of mobile network accounts for about 23% of the total cost of operators. Most of the energy consumption comes from the radio access network, especially the active antenna unit (AAU), while the data center and fiber transmission only account for a small share.

[0046] Energy consumption includes two kinds:

[0047] Dynamic part: such as energy consumption during data transmission / reception;

[0048] Static part: such as energy consumption to maintain the necessary operation of wireless access equipment (even if there is no continuous data transmission / reception at this time).

[0049] The project should not only evaluate the potential network energy consumption, but also evaluate and balance the impact on network and user performance. For example, the project should not have a particularly large impact on some key performance indicators (KPIs). The KPIs mentioned here include spectral efficiency, capacity, user perceived throughput (UPT), delay, terminal device power consumption, complexity, handover performance, call drop rate, initial access performance, etc. Possible research directions of the project include defining procedures and signaling methods for terminal devices in connected state and configured with carrier aggregation (CA, including intra / inter-frequency CA) to support on-demand SSB secondary scell (SCell) operation.

[0050] SSB-less cell

[0051] In the related art, a secondary cell can not transmit SSB, but the premise is that this cell is co-located with a special cell (sPcell) or other secondary cells of the same frequency. If the terminal device has already synchronized with another cell, and the cell is co-located with the SSB-less cell, the terminal device can communicate on the SSB-less cell. Assuming that a first cell (secondary cell) and a second cell are co-located, and the first cell is an SSB-less cell, the terminal device can obtain SSB from the second cell for communication on the first cell, and the first cell does not need to transmit SSB at all. In release 18 (R18), the network energy saving project extends the above scheme from the same frequency scenario to the different frequency scenario, that is, the SSB-less cell can obtain SSB through other cells in different frequency bands.

[0052] In R19, the SSB-less cell can work as an independent non-collocated cell. However, if the SSB-less cell is not co-located with other cells, the terminal device cannot obtain SSB from other cells. At this time, the SSB-less cell needs to transmit SSB by itself. However, for the purpose of network energy saving, the SSB should not always transmit SSB, but should transmit SSB on demand. How to design such a transmission mechanism is a problem to be solved by the embodiments of the present application.

[0053] To solve the above problems, the embodiments of the present application propose that the network device transmits configuration information to the terminal device to configure the activation mechanism of the SSB of the network device, for example, the first network device. In this way, the terminal device can determine the activation mechanism of the SSB based on the configuration information of the SSB, and receive the SSB at the corresponding time.

[0054] The embodiments of the present application will be described in detail below in conjunction with FIG. 2.

[0055] FIG. 2 is a flowchart of a wireless communication method provided by the embodiments of the present application. The method 200 shown in FIG. 2 can be executed by a terminal device and a network device.

[0056] Referring to FIG. 2, in step 210, the network device transmits configuration information to the terminal device.

[0057] The configuration information is used to configure the activation mechanism of the SSB of the target cell.

[0058] The target cell can be a cell of the first network device. The embodiments of the present application can be applied to a carrier aggregation scenario. The first network device can support multiple cells, and the target cell can be understood as one of the secondary cells. Therefore, the configuration information used to configure the activation mechanism of the SSB of the target cell can include that the configuration information is used to configure the activation mechanism of the SSB of the secondary cell.

[0059] The network device in step 210 can be either a first network device or a second network device. That is, the configuration information can be sent to the terminal device by the second network device, or the configuration information can be sent to the terminal device by the first network device. The following description assumes that the configuration information is sent to the terminal device by the second network device. Optionally, the configuration information can be configuration information that has been pre-transmitted between the first and second network devices. For example, the second network device can receive the configuration information from the first network device. Alternatively, the second network device can send the configuration information to the first network device.

[0060] It should be noted that the embodiments of this application do not specifically limit the form of the first network device (or first network) and the second network device (or second network). For example, both the first network device and the second network device can be distributed units (DUs), and two DUs can be connected through a centralized unit (CU). Alternatively, both the first network device and the second network device can be a "DU+CU". In this case, the first network device and the second network device can be directly connected, or they can be connected through another network element (e.g., an access and mobility management function (AMF)).

[0061] In some implementations, the first network device and the second network device may correspond to a first carrier set and a second carrier set, respectively. The first carrier set may include at least one carrier. The second carrier set may include at least one carrier. The first carrier set and the second carrier set may include different carriers.

[0062] In some implementations, the first network device may also be referred to as the first base station. This first base station may be, for example, a secondary base station.

[0063] In some implementations, the second network device can also be referred to as a second base station. This second base station is, for example, the main base station.

[0064] This configuration information can also be referred to as configuration signaling, etc. In some implementations, this configuration information can be carried in RRC signaling.

[0065] It is understood that in the embodiments of this application, the activation of SSB can also be referred to as triggering, sending, or transmitting.

[0066] The following section provides a detailed description of the configuration information. It should be understood that this configuration information may include one or more of the first, second, and third information mentioned below.

[0067] In some implementations, the configuration information can comprise first information, the first information being used to indicate an initial state of the SSB of the target cell. The initial state of the SSB comprises being activated or not activated based on the configuration information. In other words, the first information is used to indicate whether the SSB of the target cell is activated based on the configuration information, i.e., whether the configuration information is used to activate the SSB of the target cell.

[0068] The first information can be regarded as the configuration information of the initial state of the SSB. The terminal device can determine, based on the first information, whether the initial state of the SSB is activated or deactivated. The terminal device can determine, based on the first information, whether the target cell has the SSB transmitting when the configuration information is received.

[0069] For example, if the first information indicates that the initial state of the SSB of the target cell is activated, the terminal device considers that the SSB is transmitting on the target cell when the configuration information is received, and thus can start detecting the SSB when the configuration information is received. For another example, if the first information indicates that the initial state of the SSB of the target cell is not activated, the terminal device considers that the SSB is not transmitting on the target cell when the configuration information is received, and thus does not start detecting the SSB when the configuration information is received.

[0070] In some embodiments, the configuration information can comprise second information, the second information being used to indicate whether the SSB of the first network device is activated based on the first signaling, i.e., whether the first signaling is used to activate the SSB of the target cell. The first signaling is also used to activate the target cell. In other words, the second information is used to indicate whether the SSB of the target cell is activated at the same time when the target cell is activated.

[0071] The terminal device can determine, based on the second information, whether the target cell has the SSB transmitting when the first signaling is received. For example, if the second information indicates that the SSB of the first network device is activated based on the first signaling, the terminal device considers that the SSB is transmitting on the first network device when the first signaling is received, and thus can start detecting the SSB when the first signaling is received. For another example, if the second information indicates that the SSB of the first network device is not activated based on the first signaling, the terminal device does not associate the first signaling with whether the SSB is activated or not when the first signaling is received.

[0072] In the embodiments of the present application, the first signaling can also be referred to as a secondary cell activation signaling. As an example, the first signaling can be a medium access control control element (MAC CE), i.e., a cell activation MAC CE (Scell activation mac-ce).

[0073] In some implementations, the configuration information can further include third information, which is used to indicate whether the SSB of the target cell is deactivated based on the second signaling, i.e., whether the second signaling is used to deactivate the SSB of the target cell. Wherein, the second signaling is also used to deactivate the target cell. In other words, the third information is used to indicate whether the SSB of the target cell is deactivated simultaneously when the target cell is deactivated.

[0074] The third signaling can also be referred to as secondary cell deactivation signaling. As an example, the third signaling can be a MAC CE, i.e., a cell deactivation MAC CE (Scell deactivation mac-ce).

[0075] In some implementations, the configuration information can further include attribute information associated with the SSB, such as one or more of the following: SSB frequency; SSB position in SSB burst; SSB periodicity; SSB subcarrier spacing; identification of the target cell; downlink transmission power of the SSB.

[0076] Wherein, the frequency is the frequency at which the first network device transmits the SSB. The periodicity is the transmission periodicity of the SSB, wherein the SSB can be transmitted within a period of time and transmitted based on the periodicity within its transmission period. The subcarrier spacing is the subcarrier spacing of the SSB; the cell identification is the identification of the target cell, i.e., the secondary cell identification. The downlink transmission power is the downlink power used by the first network device to transmit the SSB in the target cell. When the terminal device determines the activation of the SSB of the target cell, the terminal device can receive the SSB based on the attribute information of the SSB.

[0077] Based on the above description, it can be seen that based on the configuration information, the terminal device can be informed when the SSB is transmitted and when it is not transmitted. Moreover, the configuration information can link the transmission of the SSB with the activation and deactivation of the cell. In this way, it helps to achieve on-demand transmission of the SSB, thereby helping the network to save energy.

[0078] The foregoing describes the content of the configuration information and its transmission process in detail. In some cases, the terminal device can also receive third signaling transmitted by the first network device. The third signaling is used to activate the SSB. That is, the first network device can activate the SSB of the target cell through the third signaling.

[0079] Similarly, the terminal device can also receive fourth signaling transmitted by the first network device. The fourth signaling is used to deactivate the SSB. That is, the first network device can deactivate the SSB of the target cell through the fourth signaling.

[0080] In addition to activating or deactivating the SSB based on the content indicated by the configuration information described above, the first network device can also activate the SSB through third signaling and deactivate the SSB through fourth signaling separately.

[0081] It should be noted that in the embodiments of the present application, the signaling mentioned in the foregoing can also be referred to as a signal or information, without conflict.

[0082] The SSB described in the embodiments of the present application can also be referred to as an on-demand SSB.

[0083] The embodiments of the present application will be described in more detail below with specific examples. It should be noted that the examples of FIGS. 3 to 5 are only to help those skilled in the art to understand the embodiments of the present application, and are not intended to limit the embodiments of the present application to the specific values or specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes based on the examples of FIGS. 3 to 5 given, and such modifications or changes also fall within the scope of the embodiments of the present application.

[0084] Referring to FIG. 3, it is assumed that the configuration information in step 210 configures the SSB of the target cell to be activated based on the first signaling sent by the first network device, that is, the SSB is activated at the same time as the target cell is activated.

[0085] Then, as shown in FIG. 3, in step 310, the terminal device receives the first signaling sent by the first network device.

[0086] In step 320, the terminal device receives the SSB based on the first signaling.

[0087] In step 330, the terminal device receives the fourth signaling sent by the first network device, which is used to deactivate the SSB.

[0088] In step 340, the terminal device stops receiving the SSB based on the fourth signaling.

[0089] Referring to FIG. 4, it is assumed that the initial state of the SSB configured in the configuration information in step 210 is activated.

[0090] Then, as shown in FIG. 4, in step 410, the terminal device starts receiving the SSB when receiving the configuration information.

[0091] In step 420, the terminal device receives the fourth signaling sent by the first network device, which is used to deactivate the SSB.

[0092] In step 330, the terminal device stops receiving the SSB based on the fourth signaling.

[0093] Referring to FIG. 5, it is assumed that the initial state of the SSB is configured as inactive in the configuration information in step 210, or the SSB is not activated based on the first signaling sent by the first network device.

[0094] Then, as shown in FIG. 5, in step 510, the terminal device receives third signaling sent by the first network device, and the third signaling is used to activate the SSB.

[0095] In step 530, the terminal device receives the SSB based on the third signaling.

[0096] The method embodiments of the present application are described in detail above in combination with FIGS. 1 to 5, and the device embodiments of the present application are described in detail below in combination with FIGS. 6 to 8. It should be understood that the description of the method embodiments and the description of the device embodiments correspond to each other, and therefore, the parts not described in detail can be referred to the foregoing method embodiments.

[0097] FIG. 6 is a structural schematic diagram of a terminal device provided by an embodiment of the present application. The terminal device 600 shown in FIG. 6 can include a receiving unit 610. The receiving unit 610 is configured to receive configuration information. The configuration information is used to configure an activation mechanism of an SSB of a target cell.

[0098] In some implementations, the configuration information includes one or more of the following: first information used to indicate an initial state of the SSB, the initial state including being activated or not activated based on the configuration information; second information used to indicate whether the SSB is activated based on first signaling, the first signaling also being used to activate the target cell; and third information used to indicate whether the SSB is deactivated based on second signaling, the second signaling also being used to deactivate the target cell.

[0099] In some implementations, the first signaling is a MAC CE; and / or, the second signaling is a MAC CE.

[0100] In some implementations, the configuration information further includes one or more of the following information: a frequency of the SSB; an SSB position in an SSB cluster; a period of the SSB; a subcarrier spacing of the SSB; an identifier of the target cell; and a downlink transmission power of the SSB.

[0101] In some implementations, the configuration information is carried in RRC signaling.

[0102] In some implementations, the configuration information is sent to the terminal device by a second network device; or, the configuration information is sent to the terminal device by a first network device; and the target cell is a cell of the first network device.

[0103] In some embodiments, the receiving unit 610 is further configured to receive third signaling sent by the first network device, the third signaling being used to activate the SSB; and receive fourth signaling sent by the first network device, the fourth signaling being used to deactivate the SSB.

[0104] It can be understood that the receiving unit 610 may, for example, be the transceiver 830. In addition, the terminal device 600 may, for example, further include a processor 810 and a memory 820, as shown in FIG. 8.

[0105] FIG. 7 is a structural diagram of a network device provided by an embodiment of the present application. The network device 700 shown in FIG. 7 may, for example, be the first network device or the second network device mentioned above. The network device 700 may, for example, include a sending unit 710. The sending unit 710 is configured to send configuration information to a terminal device. The configuration information is used to configure an activation mechanism of an SSB of a target cell.

[0106] In some embodiments, the configuration information includes one or more of the following: first information used to indicate an initial state of the SSB, the initial state including being activated or not activated based on the configuration information; second information used to indicate whether the SSB is activated based on first signaling, the first signaling also being used to activate the target cell; and third information used to indicate whether the SSB is deactivated based on second signaling, the second signaling also being used to deactivate the target cell.

[0107] In some embodiments, the first signaling is a MAC CE; and / or, the second signaling is a MAC CE.

[0108] In some embodiments, the configuration information further includes one or more of the following: a frequency of the SBB; an SSB position in an SSB cluster; a period of the SBB; a subcarrier spacing of the SBB; an identity of the target cell; and a downlink transmission power of the SBB.

[0109] In some embodiments, the configuration information is carried in RRC signaling.

[0110] In some embodiments, the configuration information is sent to the terminal device by a second network device; or, the configuration information is sent to the terminal device by a first network device; and the target cell is a cell of the first network device.

[0111] In some embodiments, the network device is the first network device, and the sending unit 710 is further configured to send third signaling to the terminal device, the third signaling being used to activate the SSB; or, send fourth signaling to the terminal device, the fourth signaling being used to deactivate the SSB. In some embodiments, the network device is the first network device, and the sending unit 710 is further configured to send third signaling to the terminal device, the third signaling being used to activate the SSB; or, send fourth signaling to the terminal device, the fourth signaling being used to deactivate the SSB.

[0112] It can be understood that the sending unit 710 can be the transceiver 830, for example. In addition, the network device 700 optionally further includes a processor 810 and a memory 820, as shown in FIG. 8.

[0113] FIG. 8 is a schematic structural diagram of a communication apparatus to which embodiments of the present application can be applied. The dashed line in FIG. 8 indicates that the unit or module is optional. The apparatus 800 can be used to implement the methods described in the foregoing method embodiments. The apparatus 800 can be a chip, a terminal device, or a network device.

[0114] The apparatus 800 can include one or more processors 810. The processor 810 can support the apparatus 800 to implement the methods described in the foregoing method embodiments. The processor 810 can be a general purpose processor or a dedicated processor. For example, the processor can be a central processing unit (CPU). Alternatively, the processor can also be other general purpose processors, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, etc. The general purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0115] The apparatus 800 can further include one or more memories 820. The memory 820 stores programs, which can be executed by the processor 810, so that the processor 810 performs the methods described in the foregoing method embodiments. The memory 820 can be independent of the processor 810 or integrated in the processor 810.

[0116] The apparatus 800 can further include a transceiver 830. The processor 810 can communicate with other devices or chips through the transceiver 830. For example, the processor 810 can perform data transceiving with other devices or chips through the transceiver 830.

[0117] Embodiments of the present application further provide a communication system. The system includes the terminal device and the network device described above. In some implementations, the system further includes other devices that interact with the terminal device and the network device.

[0118] The embodiment of the present application further provides a computer readable storage medium for storing a program. The computer readable storage medium can be applied to the terminal device or the network device provided by the embodiment of the present application, and the program causes the computer to execute the method performed by the terminal device or the network device in the various embodiments of the present application.

[0119] The embodiment of the present application further provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal device or the network device provided by the embodiment of the present application, and the program causes the computer to execute the method performed by the terminal device or the network device in the various embodiments of the present application.

[0120] The embodiment of the present application further provides a computer program. The computer program can be applied to the terminal device or the network device provided by the embodiment of the present application, and the computer program causes the computer to execute the method performed by the terminal device or the network device in the various embodiments of the present application.

[0121] It should be understood that the terms "system" and "network" can be used interchangeably in the present application. In addition, the terms used in the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third", and "fourth" and the like in the specification and claims of the present application and the drawings are used to distinguish different objects, and are not used to describe a particular order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0122] In the embodiments of the present application, the "indication" mentioned can be direct indication, or indirect indication, or can be an indication with an associated relationship. For example, A indicates B, which can mean that B can be obtained by A; 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.

[0123] In the embodiments of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean that B is determined only according to A, but B can also be determined according to A and / or other information.

[0124] In 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, and the like.

[0125] In the embodiments of the present application, the "predefined" or "preconfigured" can be implemented by pre-storing corresponding codes, tables or other manners that can be used to indicate relevant information in devices (for example, including terminal devices and network devices), and the specific implementation manners are not limited in the present application. For example, the predefinition can refer to the definition in a protocol.

[0126] In the embodiments of the present application, the "protocol" can refer to a standard protocol in the communication field, for example, can include the LTE protocol, the NR protocol and the related protocol applied to the future communication system, and the present application is not limited to this.

[0127] In the embodiments of the present application, the term "and / or" is only used to describe the association relationship of the associated objects, that is, there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents an "or" relationship between the front and rear associated objects.

[0128] In various embodiments of the present application, the size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0129] In several embodiments provided by the present application, it should be understood that the disclosed system, device and method can be implemented by other ways. For example, the device embodiments described above are only schematic, and for example, the division of the units is only a logical function division, and there can be another division way in actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different parts can be indirect couplings or communication connections through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0130] The units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, that is, they can be located in one place, or can be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0131] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit.

[0132] In the above embodiments, all or part of them can be realized by software, hardware, firmware or any combination thereof. When realized by software, all or part of them can be realized in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed by a computer, all or part of them generate the processes or functions described in the embodiments of the present application. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another, for example, the computer instructions can be transferred from one website, computer, server or data center to another through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) manner. The computer-readable storage medium can be any available medium readable by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as digital video disc (DVD)) or semiconductor media (such as solid state disk (SSD)) and the like.

[0133] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, the method comprising: The method comprises: receiving, by a terminal device, configuration information, the configuration information being used for configuring an activation mechanism of a synchronization signal broadcast channel block (SSB) of a target cell.

2. The method of claim 1, wherein, The configuration information comprises one or more of the following: first information used for indicating an initial state of the SSB, the initial state comprising being activated or not activated based on the configuration information; second information used for indicating whether the SSB is activated based on first signaling, the first signaling also being used for activating the target cell; third information used for indicating whether the SSB is deactivated based on second signaling, the second signaling also being used for deactivating the target cell.

3. The method of claim 2, wherein, The first signaling is a medium access control control element (MAC CE); and / or, the second signaling is a MAC CE.

4. The method according to any one of claims 1 to 3, characterized in that, The configuration information further comprises one or more of the following: a frequency of the SSB; a position of the SSB in a SSB cluster; a period of the SSB; a subcarrier spacing of the SSB; an identity of the target cell; and a downlink transmission power of the SSB.

5. The method according to any one of claims 1 to 4, characterized in that, The configuration information is carried in a radio resource control (RRC) signaling.

6. The method of any one of claims 1 to 5, wherein: the configuration information is sent to the terminal device by a second network device; or the configuration information is sent to the terminal device by a first network device; wherein the target cell is a cell of the first network device.

7. The method according to any one of claims 1 to 6, characterized in that, The method further comprises: receiving, by the terminal device, third signaling sent by the first network device, the third signaling being used for activating the SSB; or receiving, by the terminal device, fourth signaling sent by the first network device, the fourth signaling being used for deactivating the SSB.

8. A method of wireless communication, the method comprising: The method comprises: sending, to a terminal device, configuration information, the configuration information being used for configuring an activation mechanism of a synchronization signal broadcast channel block (SSB) of a target cell.

9. The method of claim 8, wherein, The configuration information comprises one or more of the following: first information used for indicating an initial state of the SSB, the initial state comprising being activated or not activated based on the configuration information; second information used for indicating whether the SSB is activated based on first signaling, the first signaling also being used for activating the first network device; third information used for indicating whether the SSB is deactivated based on second signaling, the second signaling also being used for deactivating the target cell.

10. The method of claim 9, wherein, The first signaling is a medium access control control element (MAC CE); and / or, the second signaling is a MAC CE.

11. The method according to any one of claims 8 to 10, characterized in that, The configuration information further comprises one or more of the following: a frequency of the SSB; a position of the SSB in a SSB cluster; a period of the SSB; a subcarrier spacing of the SSB; an identity of the target cell; and a downlink transmission power of the SSB.

12. The method according to any one of claims 8 to 11, characterized in that, The configuration information is carried in a radio resource control (RRC) signaling.

13. The method of any one of claims 8 to 12, wherein: the configuration information is sent to the terminal device by a second network device; or the configuration information is sent to the terminal device by a first network device; wherein the target cell is a cell of the first network device.

14. The method according to any one of claims 8 to 13, characterized in that, The method is performed by a first network device, and the method further includes: sending third signaling to the terminal device, the third signaling being used to activate the SSB; or sending fourth signaling to the terminal device, the fourth signaling being used to deactivate the SSB.

15. A terminal device, comprising: Comprise: a receiving unit, configured to receive configuration information, the configuration information being used to configure an activation mechanism of a synchronization signal broadcast channel block (SSB) of a target cell.

16. The terminal device of claim 15, wherein, The configuration information comprises one or more of the following: first information, used to indicate an initial state of the SSB, the initial state comprising being activated or not activated based on the configuration information; second information, used to indicate whether the SSB is activated based on first signaling, the first signaling also being used to activate the target cell; third information, used to indicate whether the SSB is deactivated based on second signaling, the second signaling also being used to deactivate the target cell.

17. The terminal device of claim 16, wherein, The first signaling is a medium access control control element (MAC CE); and / or, the second signaling is a MAC CE.

18. The terminal device of any one of claims 15 to 17, wherein, The configuration information further comprises one or more of the following information: a frequency of the SSB; a position of the SSB in an SSB cluster; a period of the SSB; a subcarrier spacing of the SSB; an identity of the target cell; and a downlink transmission power of the SSB.

19. The terminal device of any one of claims 15-18, wherein, The configuration information is carried in a radio resource control (RRC) signaling.

20. The terminal device of any one of claims 15-19, wherein: the configuration information is sent to the terminal device by a second network device; or the configuration information is sent to the terminal device by a first network device; wherein the target cell is a cell of the first network device.

21. The terminal device of any one of claims 15 to 20, wherein, The receiving unit is further configured to: receive third signaling sent by the first network device, the third signaling being used to activate the SSB; or receive fourth signaling sent by the first network device, the fourth signaling being used to deactivate the SSB.

22. A network device, comprising: Comprise: a sending unit, configured to send configuration information to a terminal device, the configuration information being used to configure an activation mechanism of a synchronization signal broadcast channel block (SSB) of a target cell.

23. The network device of claim 22, wherein, The configuration information comprises one or more of the following: first information, used to indicate an initial state of the SSB, the initial state comprising being activated or not activated based on the configuration information; second information, used to indicate whether the SSB is activated based on first signaling, the first signaling also being used to activate the first network device; third information, used to indicate whether the SSB is deactivated based on second signaling, the second signaling also being used to deactivate the target cell.

24. The network device of claim 23, wherein, The first signaling is a medium access control control element (MAC CE); and / or, the second signaling is a MAC CE.

25. The network device according to any of claims 22 to 24, wherein, The configuration information further comprises one or more of the following information: a frequency of the SSB; a position of the SSB in an SSB cluster; a period of the SSB; a subcarrier spacing of the SSB; an identity of the target cell; and a downlink transmission power of the SSB.

26. The network device according to any of claims 22 to 25, wherein, The configuration information is carried in a radio resource control (RRC) signaling.

27. The network device according to any one of claims 22-26, wherein the configuration information is transmitted to the terminal device by a second network device; or the configuration information is transmitted to the terminal device by the first network device.

27. The network device according to any one of claims 22-26, wherein the target cell is a cell of the first network device.

28. The network device according to any of claims 22 to 27, wherein, 27. The network device according to any one of claims 22-26, wherein the network device is a first network device, and the sending unit is further configured to: