Method, terminal device and network device for wireless communication

Abstract

A wireless communication method, terminal device, and network device are disclosed. The method includes: triggering beam failure recovery (BFR) for a first secondary cell when the terminal device receives a first signaling, wherein the first signaling is used to activate the first secondary cell, and the first secondary cell is a Physical Uplink Control Channel (PUCCH) secondary cell.

Description

Technical Field

[0001] This application relates to the field of communications, specifically to a wireless communication method, terminal device, and network device. Background Technology

[0002] In some scenarios, the concept of Physical Uplink Control Channel (PUCCH) Cell Groups (PUCCH CGs) is introduced. For example, all aggregated cells can be divided into multiple PUCCH CGs. Among them, the PUCCH CG that includes a special cell (SPCell) is called the Primary PUCCH group, and the other PUCCH CGs are called Secondary PUCCH groups. The secondary cell (SCe11) carrying the PUCCH in the PUCCH CG is called the PUCCH Secondary Cell (PUCCH SCe11).

[0003] In New Radio (NR) systems, when an activation command for a SCell is received in time slot n, the terminal device can report Channel State Information (CSI) to the network device as early as time slot n+k. However, the terminal device can only report a CSI report if at least one of the serving cells in the PUCCH group to which the SCell belongs is active. When the SCell belongs to a Secondary PUCCH group, the terminal device can only send a CSI report after a SCell in that Secondary PUCCH group has become active, thus impacting network performance. Summary of the Invention

[0004] This application provides a wireless communication method, terminal device, and network device. By triggering BFR to report information of reference signals that need to be reported via CSI for inactive secondary cells, the network device can be ensured to obtain information of the reference signals selected by the terminal device in a timely manner, thereby improving network performance.

[0005] In a first aspect, a wireless communication method is provided, comprising: triggering beam failure recovery (BFR) for a first secondary cell when a terminal device receives a first signaling, wherein the first signaling is used to activate the first secondary cell, and the first secondary cell is a physical uplink control channel (PUCCH) secondary cell.

[0006] In a second aspect, a wireless communication method is provided, comprising: a network device sending a first signaling to a terminal device, the first signaling being used to activate a first secondary cell, the first secondary cell being a Physical Uplink Control Channel (PUCCH) cell;

[0007] If the first secondary cell is not activated, the network device receives the Beam Failure Recovery Media Access Control (BFR MAC CE) sent by the terminal device.

[0008] Thirdly, a terminal device is provided for executing the methods described in the first aspect or its various implementations.

[0009] Specifically, the terminal device includes a functional module for performing the methods described in the first aspect or its various implementations.

[0010] Fourthly, a network device is provided for performing the methods described in the second aspect or its various implementations.

[0011] Specifically, the network device includes a functional module for performing the methods described in the second aspect or its various implementations.

[0012] Fifthly, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the methods described in the first aspect or its various implementations.

[0013] Sixthly, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the methods in the second aspect or its implementations described above.

[0014] In a seventh aspect, a chip is provided for implementing the methods of any one of the first to second aspects or their respective implementations.

[0015] Specifically, the chip includes a processor for calling and running a computer program from memory, causing a device equipped with the device to perform the methods described in any of the first to second aspects above or their respective implementations.

[0016] Eighthly, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0017] Ninthly, a computer program product is provided, including computer program instructions that cause a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0018] In a tenth aspect, a computer program is provided that, when run on a computer, causes the computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0019] Through the above technical solution, the terminal device can receive the activation signaling of the secondary cell, which is usually not yet activated. By triggering BFR for the secondary cell, the terminal device can report the information of the reference signal that needs to be reported through CSI to the network device, without waiting for the secondary cell to be activated before reporting the information of the reference signal. This ensures that the network device can know the information of the reference signal selected by the terminal device in a timely manner, thereby improving network performance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a communication system architecture provided in an embodiment of this application.

[0021] Figure 2 This is a schematic diagram of the SCell activation process according to an embodiment of this application.

[0022] Figure 3 This is a schematic interactive diagram of a wireless communication method provided according to an embodiment of this application.

[0023] Figure 4 This is a schematic format diagram of a BFR MAC CE provided according to an embodiment of this application.

[0024] Figure 5 This is a schematic interactive diagram of another wireless communication method provided according to an embodiment of this application.

[0025] Figure 6 This is a schematic block diagram of a terminal device provided according to an embodiment of this application.

[0026] Figure 7 This is a schematic block diagram of a network device provided according to an embodiment of this application.

[0027] Figure 8 This is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0028] Figure 9 This is a schematic block diagram of a chip provided according to an embodiment of this application.

[0029] Figure 10This is a schematic block diagram of a communication system provided according to an embodiment of this application. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0031] The technical solutions of this application embodiment 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, evolution 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), and Wireless Fidelity (WF). Fidelity (WiFi), 5th-Generation (5G) communication systems, or other communication systems.

[0032] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, 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. The embodiments of this application can also be applied to these communication systems.

[0033] Optionally, the communication system in this application embodiment can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, or standalone (SA) network deployment scenarios.

[0034] Optionally, the communication system in this application embodiment can be applied to unlicensed spectrum, wherein unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application embodiment can also be applied to licensed spectrum, wherein licensed spectrum can also be considered as non-shared spectrum.

[0035] This application describes various embodiments in conjunction with network devices and terminal devices. The terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0036] Terminal devices can be stations (STs) in WLANs, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in next-generation communication systems such as NR networks, or terminal devices in future evolved Public Land Mobile Network (PLMN) networks, etc.

[0037] In the embodiments of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons and satellites).

[0038] In the embodiments of this application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0039] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0040] In the embodiments of this application, the network device can be a device for communicating with mobile devices. The network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (eNB or eNodeB) in LTE, a relay station or access point, or a vehicle-mounted device, wearable device, or a network device (gNB) in an NR network, or a network device in a future evolved PLMN network or an NTN network, etc.

[0041] By way of example and not limitation, in this embodiment, the network device may have mobility characteristics; for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station located on land, water, or other similar locations.

[0042] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0043] For example, the communication system 100 used in the embodiments of this application is as follows: Figure 1 As shown. The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0044] Figure 1An exemplary embodiment shows a network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

[0045] Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment.

[0046] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities. This application embodiment does not limit this.

[0047] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0048] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0049] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0050] In this application embodiment, "predefined" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0051] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

[0052] To facilitate understanding of the technical solutions of the embodiments of this application, the technical solutions of this application are described in detail below through specific embodiments. The following related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0053] To facilitate a better understanding of the embodiments of this application, the multi-beam system related to this application will be described.

[0054] The design goals of NR systems include high-bandwidth communication in high-frequency bands (e.g., above 6 GHz). As the operating frequency increases, path loss during transmission increases, affecting the coverage capability of the high-frequency system. To effectively guarantee the coverage of high-frequency NR systems, an effective technical solution is to use Massive MIMO (Multi-Input Multiple-Output) antenna arrays to form shaped beams with higher gain, overcoming propagation loss and ensuring system coverage.

[0055] Millimeter-wave antenna arrays, due to their shorter wavelengths and smaller antenna element spacing and apertures, allow for the integration of more physical antenna elements into a finite-size two-dimensional antenna array. However, due to the limited size of millimeter-wave antenna arrays, considering factors such as hardware complexity, cost, and power consumption, digital beamforming cannot be used. Instead, analog beamforming is typically employed, which enhances network coverage while reducing the implementation complexity of the equipment.

[0056] In 2G / 3G / 4G systems, a cell (sector) uses a relatively wide beam to cover the entire cell. Therefore, at any given time, UEs within the cell's coverage area have the opportunity to obtain the transmission resources allocated by the system.

[0057] NR's Multi-beam system covers the entire cell using different beams, with each beam covering a smaller area. The effect of multiple beams covering the entire cell is achieved through temporal sweeping.

[0058] For example, different beams transmit different synchronization signal / physical broadcast channel blocks (SS / PBCH blocks, or SSBs), and the UE can distinguish different beams by different SSBs.

[0059] For example, different beams transmit different Channel State Information Reference Signals (CSI-RS), and the UE identifies different beams through CSI-RS signals / CSI-RS resources.

[0060] In a multi-beam system, the Physical Downlink Control Channel (PDCCH) and the Physical Downlink Shared Channel (PDSCH) can be transmitted using different downlink transmit beams.

[0061] To facilitate a better understanding of the embodiments of this application, the CSI reporting related to this application will be explained.

[0062] For network devices to perform reasonable scheduling, terminal devices need to report CSI (Content Targeting Information) so that the network devices can determine the terminal devices' scheduling information, such as the transmission layer number, precoding matrix, transmit beam, and modulation / coding scheme. Specifically, the terminal devices' CSI reporting is based on the CSI reporting configuration indicated by the network devices. Each CSI reporting configuration corresponds to one CSI report, and the content included in the CSI is determined by the report quantity information in the CSI reporting configuration. For example, the CSI report quantity can be configured to include indication information of the reference signal (or beam) selected by the terminal device and / or the measurement results of the reference signal (or beam) selected by the terminal device.

[0063] In some embodiments, the reference signal may include, but is not limited to, a synchronization signal block (SSB) and a channel state information-reference signal (CSI-RS).

[0064] It should be noted that SSB can also be called synchronizationsignal / physical broadcast channel block (SS / PBCH block).

[0065] In some scenarios, the concept of Physical Uplink Control Channel (PUCCH) Cell Groups (PUCCH CGs) is introduced. For example, all aggregated cells can be divided into multiple PUCCH CGs. Among them, the PUCCH CG that includes a special cell (SPCell) is called the Primary PUCCH group, and the other PUCCH CGs are called Secondary PUCCH groups. The secondary cell (SCe11) carrying the PUCCH in the PUCCH CG is called the PUCCH SCe11.

[0066] The SPcell can refer to either the primary cell (PCcell) or the primary-secondary cell (PScell).

[0067] In an NR system, when an activation command for a SCell is received in time slot n, the terminal device can report Channel State Information (CSI) to the network device as early as time slot n+k. This CSI report is used to report a reference signal with better signal quality to the network device. For example... Figure 2 As shown, the terminal device can activate the SCell between time slot n+k and the specified activation delay requirement, and further, report a CSI report to the network device in the SCell.

[0068] However, a prerequisite for a terminal device to report a CSI report is that at least one of the serving cells in the PUCCH group to which the SCell belongs is active. When the SCell belongs to a Secondary PUCCH group, the terminal device can only send a CSI report after the SCell in that Secondary PUCCH group becomes active, impacting network performance. Therefore, how to promptly notify network devices of reference signals with superior signal quality is an urgent problem to be solved.

[0069] Figure 3 This is a schematic flowchart of a wireless communication method 200 according to an embodiment of this application. The method 200 can be performed by... Figure 1 The terminal device in the communication system shown performs, such as Figure 3 As shown, method 200 includes the following:

[0070] S210, when the terminal device receives the first signaling, it triggers beam failure recovery (BFR) for the first secondary cell. The first signaling is used to activate the first secondary cell, which is the Physical Uplink Control Channel (PUCCH) secondary cell (i.e., PUCCH SCell).

[0071] In some embodiments of this application, the first signaling is a secondary cell activation MAC CE (SCell).

[0072] Activation / Deactivation MAC CE), the secondary cell activation MAC CE is used to activate the first secondary cell.

[0073] In other embodiments of this application, the first signaling is Radio Resource Control (RRC) signaling, which is used to configure the PUCCH secondary cell and the activation status of the PUCCH secondary cell.

[0074] For example, RRC signaling can configure the first secondary cell as a PUCCH secondary cell and configure the activation state parameter (sCellState) of the first secondary cell as activated to activate the first secondary cell.

[0075] In some embodiments of this application, the first secondary cell belongs to the secondary PUCCH cell group.

[0076] In some embodiments, before receiving the first signaling, the first secondary cell is not activated, or there is no activated PUCCH SCell in the Secondary PUCCH group to which the first secondary cell belongs. Therefore, the terminal device cannot report a CSI report to the network device through the PUCCH SCell in the Secondary PUCCH group. This is referred to as Case 1.

[0077] In some embodiments of this application, the method 200 further includes:

[0078] The terminal device sends a BFR Media Access Control (MAC) control element (CE) to the network device on the first serving cell, wherein the first serving cell belongs to the Primary PUCCH group.

[0079] Optionally, if the primary secondary cell is not activated, or if none of the PUCCH cells in the secondary PUCCH group to which the primary secondary cell belongs are activated, the terminal device can trigger a BFR for the primary secondary cell through the serving cell in the primary PUCCH group. The triggered BFR then reports the reference signal information required for the CSI report to the network device.

[0080] In some embodiments, the BFR MAC CE includes at least one of the following:

[0081] The information of the first auxiliary cell, and the identification information of at least one reference signal.

[0082] The terminal device indicates to the network device that the BFR MAC CE sent through the first serving cell is a BFR triggered by the first secondary cell by carrying information about the first secondary cell in the BFR MAC CE.

[0083] In some embodiments, the BFR MAC CE can indicate the target cell that triggers the BFR via a bitmap.

[0084] For example, the BFR MAC CE includes a first bit diagram, which includes multiple bits, each bit corresponding to a cell. The value of each bit is used to indicate whether the corresponding cell has triggered BFR, or in other words, the values ​​of the multiple bits are used to determine which cell the BFR MAC CE is triggered for.

[0085] Figure 4 This document illustrates a typical format for a BFR MAC CE, using an example of multiple bits, including 8 bits. C7~C1 correspond to 7 SCells, and SP corresponds to SPcell. For instance, a bit value of 0 indicates that BFR is not triggered for the corresponding cell, while a value of 1 indicates that BFR is triggered for the corresponding cell. Therefore, if C3 is 1 and the other bits are 0, it indicates that BFR is triggered for the SCell corresponding to C3.

[0086] In some embodiments, the at least one reference signal is a reference signal in a candidate reference signal list (candidateBeamRSSCellList), wherein the candidate reference signal list is pre-configured.

[0087] For example, the candidate reference signal list is sent by the network device to the terminal device via RRC signaling.

[0088] Optionally, the candidate reference signal list is sent to the terminal device before the first secondary cell is activated.

[0089] In some embodiments, the at least one reference signal is a reference signal in the candidate reference signal list whose signal quality satisfies a first threshold (e.g., greater than the first threshold, or greater than or equal to the first threshold).

[0090] Optionally, the first threshold is pre-configured.

[0091] Optionally, the first threshold is sent by the network device to the terminal device via RRC signaling.

[0092] Optionally, the first threshold is sent to the terminal device before the first secondary cell is activated.

[0093] Optionally, the signal quality of the at least one reference signal can be characterized by at least one of the following metrics: Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), and Signal to Interference plus Noise Ratio (SINR).

[0094] Correspondingly, the first threshold can be the RSRP threshold (or rsrp-ThresholdBFR), the RSRQ threshold, or the SINR threshold, etc.

[0095] Optionally, the signal quality of the at least one reference signal is characterized by measurement results without physical layer filtering, such as Layer 1-RSRP (L1-RSRP).

[0096] Figure 4 A typical format of a BFR MAC CE is shown. For example, a BFR MAC CE may include identifiers of candidate reference signals that need to be reported from a list of candidate reference signals.

[0097] In other embodiments, the terminal device can also indicate the candidate reference signals reported by the terminal device using a bitmap. For example, the BFR MAC CE includes a second bitmap, which includes multiple bits, each bit corresponding to a candidate reference signal in the candidate reference signal list. The value of each bit is used to indicate whether the corresponding candidate reference signal meets a first threshold, or whether the terminal device reports the candidate reference signal. For example, a value of 1 indicates that the first threshold is met, and a value of 0 indicates that the first threshold is not met. Assuming that the candidate reference signal list includes 8 candidate reference signals (RS8~RS1), if RS3 is a reference signal whose signal quality meets the first threshold, and the second bitmap includes B1~B8, corresponding to RS8~RS1 respectively, then the second bitmap can be 00000100.

[0098] In some embodiments, the reference signal may include, but is not limited to, SSB or CSI-RS.

[0099] In other embodiments of this application, the first secondary cell is activated before the first signaling is received, or there is an active PUCCH SCell in the Secondary PUCCH group to which the first secondary cell belongs. This is referred to as Case 2.

[0100] In some embodiments of this application, the method 200 further includes:

[0101] The terminal device cancels the triggered BFR.

[0102] For example, if the primary secondary cell is already activated, or if there is an activated PUCCH SCell in the secondary PUCCH group to which the primary secondary cell belongs, the terminal device cancels the triggered BFR.

[0103] Furthermore, the method 200 also includes:

[0104] The terminal device sends a CSI report to the network device on the first secondary cell. The CSI report includes identification information of at least one reference signal and / or signal quality information of the at least one reference signal; or

[0105] The terminal device sends a CSI report to the network device on the second secondary cell. The CSI report includes identification information of at least one reference signal and / or signal quality information of the at least one reference signal. The second secondary cell can be an active PUCCH SCell in the Secondary PUCCH group to which the first secondary cell belongs.

[0106] For example, if the first secondary cell is already activated, a CSI report is sent to the network device on the first secondary cell.

[0107] For example, if the first secondary cell is not active, but the second secondary cell in the Secondary PUCCH group to which the first secondary cell belongs is active, a CSI report is sent to the network device on the second secondary cell.

[0108] That is, in the aforementioned case 2, the terminal device may not trigger BFR for the first secondary cell, but instead report a CSI report to the network device on the PUCCH SCell activated in the first secondary cell or the Secondary PUCCH group to which the first secondary cell belongs.

[0109] In summary, when a terminal device receives an activation signal for a SCell, but the SCell is not yet activated, or there is no activated PUCCH SCell in the Secondary PUCCH group to which the SCell belongs, it can trigger a BFR for the SCell to report information about the reference signal that needs to be reported via CSI to the network device, without waiting for the SCell to be activated before reporting the reference signal information. This ensures that the network device can promptly obtain information about the reference signal with better signal quality selected by the terminal device, thereby improving network performance.

[0110] The above text combined Figure 3 and Figure 4 The wireless communication method according to the embodiments of this application is described in detail from the perspective of the terminal device. The following is in conjunction with Figure 5 This application describes in detail a wireless communication method according to another embodiment of the present application from the perspective of a network device. It should be understood that the description on the network device side corresponds to the description on the terminal device side, and similar descriptions can be found above. To avoid repetition, they will not be repeated here.

[0111] Figure 5 This is a schematic flowchart of a wireless communication method 300 according to another embodiment of this application, which can be performed by... Figure 1 The network devices in the communication system shown perform the following actions: Figure 5 As shown, the method 300 includes the following:

[0112] S310, the network device sends a first signaling message to the terminal device. The first signaling message is used to activate the first secondary cell, which is a Physical Uplink Control Channel (PUCCH) cell.

[0113] S320, the network device receives the beam failure recovery media access control element BFR MAC CE sent by the terminal device.

[0114] In the embodiments of this application, the BFR MAC CE may be sent when the first secondary cell is not activated, or when there is no activated PUCCH SCell in the Secondary PUCCH group to which the first secondary cell belongs.

[0115] In some embodiments of this application, the first signaling is a secondary cell activation MAC CE (SCell).

[0116] Activation / Deactivation MAC CE), the secondary cell activation MAC CE is used to activate the first secondary cell.

[0117] In other embodiments of this application, the first signaling is Radio Resource Control (RRC) signaling, which is used to configure the PUCCH secondary cell and the activation status of the PUCCH secondary cell.

[0118] For example, RRC signaling can configure the first secondary cell as a PUCCH secondary cell and configure the activation state parameter (sCellState) of the first secondary cell as activated to activate the first secondary cell.

[0119] In some embodiments of this application, the first secondary cell belongs to the secondary PUCCH cell group.

[0120] In some embodiments, before receiving the first signaling, the first secondary cell is not activated, or there is no activated PUCCH SCell in the Secondary PUCCH group to which the first secondary cell belongs. Therefore, the terminal device cannot report a CSI report to the network device through the PUCCH SCell in the Secondary PUCCH group. This is referred to as Case 1.

[0121] In some embodiments of this application, S310 includes:

[0122] The terminal device receives the BFR MAC CE sent by the terminal device on the first serving cell, wherein the first serving cell belongs to the primary PUCCH group.

[0123] Optionally, if the first secondary cell is not activated, or if none of the PUCCH cells in the Secondary PUCCH group to which the first secondary cell belongs are activated, the network device can receive a BFR triggered by the terminal device for the first secondary cell through the serving cell in the Primary PUCCH group. Information about the reference signal reported via the CSI report can be obtained through this triggered BFR.

[0124] In some embodiments, the BFR MAC CE includes at least one of the following:

[0125] The information of the first auxiliary cell, and the identification information of at least one reference signal.

[0126] The terminal device indicates to the network device that the BFR MAC CE sent through the first serving cell is a BFR triggered by the first secondary cell by carrying information about the first secondary cell in the BFR MAC CE.

[0127] In some embodiments, the BFR MAC CE can indicate the target cell that triggers the BFR via a bitmap.

[0128] For example, the BFR MAC CE includes a first bit diagram, which includes multiple bits, each bit corresponding to a cell. The value of each bit is used to indicate whether the corresponding cell has triggered BFR, or in other words, the values ​​of the multiple bits are used to determine which cell the BFR MAC CE is triggered for.

[0129] Figure 4 This document illustrates a typical format for a BFR MAC CE, using an example of multiple bits, including 8 bits. C7~C1 correspond to 7 SCells, and SP corresponds to SPcell. For instance, a bit value of 0 indicates that BFR is not triggered for the corresponding cell, while a value of 1 indicates that BFR is triggered for the corresponding cell. Therefore, if C3 is 1 and the other bits are 0, it indicates that BFR is triggered for the SCell corresponding to C3.

[0130] In some embodiments, the at least one reference signal is a reference signal in a candidate reference signal list, wherein the candidate reference signal list is pre-configured.

[0131] For example, the candidate reference signal list is sent by the network device to the terminal device via RRC signaling.

[0132] Optionally, the candidate reference signal list is sent to the terminal device before the first secondary cell is activated.

[0133] In some embodiments, the at least one reference signal is a reference signal in the candidate reference signal list whose signal quality satisfies a first threshold (e.g., greater than the first threshold, or greater than or equal to the first threshold).

[0134] Optionally, the first threshold is pre-configured.

[0135] Optionally, the first threshold is sent by the network device to the terminal device via RRC signaling.

[0136] Optionally, the first threshold is sent to the terminal device before the first secondary cell is activated.

[0137] Optionally, the signal quality of the at least one reference signal can be characterized by at least one of the following metrics: Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), and Signal to Interference plus Noise Ratio (SINR).

[0138] Correspondingly, the first threshold can be the RSRP threshold, the RSRQ threshold, or the SINR threshold, etc.

[0139] Optionally, the signal quality of the at least one reference signal is characterized by measurement results without physical layer filtering, such as Layer 1-RSRP (L1-RSRP).

[0140] Figure 4 A typical format of a BFR MAC CE is shown. For example, a BFR MAC CE may include identifiers of candidate reference signals that need to be reported from a list of candidate reference signals.

[0141] In other embodiments, the terminal device can also indicate the candidate reference signals reported by the terminal device using a bitmap method. For example, the BFR MAC CE includes a second bitmap, which includes multiple bits, each bit corresponding to a candidate reference signal in the candidate reference signal list. The value of each bit is used to indicate whether the corresponding candidate reference signal meets the first threshold, or whether the terminal device reports the candidate reference signal. For example, a value of 1 indicates that the first threshold is met, and a value of 0 indicates that the first threshold is not met. Assuming that the candidate reference signal list includes 8 candidate reference signals (RS8~RS1), if RS3 is a reference signal whose signal quality meets the first threshold, and the second bitmap includes B1~B8, corresponding to RS8~RS1 respectively, then the second bitmap can be 00000100.

[0142] In some embodiments, the reference signal may include, but is not limited to, a synchronization signal block (SSB) and a channel state information-reference signal (CSI-RS).

[0143] It should be noted that SSB can also be called synchronizationsignal / physical broadcast channel block (SS / PBCH block).

[0144] In other embodiments of this application, the first secondary cell is activated before the first signaling is received, or there is an active PUCCH SCell in the Secondary PUCCH group to which the first secondary cell belongs. This is referred to as Case 2.

[0145] Furthermore, the method 200 also includes:

[0146] The network device receives a CSI report sent by a terminal device on the first secondary cell. The CSI report includes identification information of at least one reference signal and / or signal quality information of the at least one reference signal; or

[0147] The network device receives a CSI report sent by the terminal device on the second secondary cell. The CSI report includes identification information of at least one reference signal and / or signal quality information of the at least one reference signal. The second secondary cell can be an active PUCCH SCell in the Secondary PUCCH group to which the first secondary cell belongs.

[0148] That is, in the aforementioned case 2, the terminal device may not trigger BFR for the first secondary cell, but instead report a CSI report to the network device on the PUCCH SCell activated in the first secondary cell or the Secondary PUCCH group to which the first secondary cell belongs.

[0149] In summary, network devices can obtain information about the reference signals that the terminal device needs to report via CSI by using BFR triggered by the terminal device for an inactive SCell. This allows the network device to promptly obtain information about the reference signal with better signal quality selected by the terminal device, thereby improving network performance.

[0150] The above text combined Figures 3 to 5 The method embodiments of this application are described in detail below, in conjunction with... Figures 6 to 10 The present application describes the device embodiments in detail. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0151] Figure 6 A schematic block diagram of a terminal device 400 according to an embodiment of this application is shown. Figure 6 As shown, the terminal device 400 includes:

[0152] Processing unit 410 is configured to trigger beam failure recovery (BFR) for a first secondary cell upon receiving a first signaling message, wherein the first signaling message is used to activate the first secondary cell, and the first secondary cell is a physical uplink control channel (PUCCH) secondary cell.

[0153] In some embodiments of this application, the terminal device 400 further includes:

[0154] The communication unit is used to send a BFR Media Access Control (MACCE) control element to the network device on the first serving cell, wherein the first serving cell belongs to the primary PUCCH cell group.

[0155] In some embodiments of this application, the BFR MAC CE includes at least one of the following:

[0156] The information of the first auxiliary cell, and the identification information of at least one reference signal.

[0157] In some embodiments of this application, the BFR MAC CE includes a first bit map, which includes multiple bits, each bit corresponding to a cell, and the value of each bit is used to indicate whether the corresponding cell triggers BFR.

[0158] In some embodiments of this application, the at least one reference signal is a reference signal in a candidate reference signal list, wherein the candidate reference signal list is pre-configured.

[0159] In some embodiments of this application, the at least one reference signal is a reference signal whose signal quality satisfies a first threshold in the candidate reference signal list.

[0160] In some embodiments of this application, the first threshold is pre-configured.

[0161] In some embodiments of this application, the candidate reference signal list is sent by the network device to the terminal device via Radio Resource Control (RRC) signaling.

[0162] In some embodiments of this application, the reference signal is a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

[0163] In some embodiments of this application, the processing unit is further configured to:

[0164] If the first secondary cell is already activated, cancel the triggered BFR.

[0165] In some embodiments of this application, the terminal device further includes:

[0166] A communication unit is configured to send a CSI report to a network device on the first secondary cell, the CSI report including identification information of at least one reference signal and / or signal quality information of the at least one reference signal.

[0167] In some embodiments of this application, the first signaling is secondary cell activation MAC CE; or

[0168] The first signaling is RRC signaling, which is used to configure the PUCCH secondary cell and the activation status of the PUCCH secondary cell.

[0169] In some embodiments of this application, the first secondary cell belongs to the secondary PUCCH cell group.

[0170] Therefore, in this embodiment, when the terminal device receives the activation signaling of the secondary cell, but the secondary cell is not activated, or there is no activated PUCCH secondary cell in the secondary PUCCH cell group to which the secondary cell belongs, it can trigger a BFR for the secondary cell to report the information of the reference signal that needs to be reported through CSI to the network device, without waiting for the secondary cell to be activated before reporting the information of the reference signal. This ensures that the network device can promptly know the information of the reference signal selected by the terminal device, thereby improving network performance.

[0171] Optionally, in some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0172] It should be understood that the terminal device 400 according to the embodiments of this application may correspond to the terminal device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the terminal device 400 are respectively for implementing Figures 3 to 4 The corresponding process of the terminal device in method 200 shown will not be described in detail here for the sake of brevity.

[0173] Figure 7 This is a schematic block diagram of a network device according to an embodiment of this application. Figure 7 The network equipment 500 includes:

[0174] Communication unit 510 is configured to send a first signaling message to a terminal device, the first signaling message being used to activate a first secondary cell, the first secondary cell being a Physical Uplink Control Channel (PUCCH) cell; and

[0175] If the first secondary cell is not activated, receive the beam failure recovery media access control element BFR MAC CE sent by the terminal device.

[0176] In some embodiments of this application, the communication unit 510 is specifically used for:

[0177] The terminal device receives the BFR MAC CE sent by the terminal device on the first serving cell, wherein the first serving cell belongs to the primary PUCCH cell group.

[0178] In some embodiments of this application, the BFR MAC CE includes at least one of the following:

[0179] The information of the first auxiliary cell, and the identification information of at least one reference signal.

[0180] In some embodiments of this application, the BFR MAC CE includes a first bit map, which includes multiple bits, each bit corresponding to a cell, and the value of each bit is used to indicate the cell that triggers BFR.

[0181] In some embodiments of this application, the at least one reference signal is a reference signal in a candidate reference signal list, wherein the candidate reference signal list is pre-configured.

[0182] In some embodiments of this application, the at least one reference signal is a reference signal whose signal quality satisfies a first threshold in the candidate reference signal list.

[0183] In some embodiments of this application, the network device sends the first threshold to the terminal device via Radio Resource Control (RRC) signaling.

[0184] In some embodiments of this application, the network device sends the candidate reference signal list to the terminal device via RRC signaling.

[0185] In some embodiments of this application, the first signaling is secondary cell activation MAC CE; or

[0186] The first signaling is RRC signaling, which is used to configure the PUCCH secondary cell and the activation status of the PUCCH secondary cell.

[0187] In some embodiments of this application, the first secondary cell belongs to the secondary PUCCH cell group.

[0188] Therefore, in this embodiment of the application, the network device can obtain information about the reference signal that the terminal device needs to report through the CSI report by the BFR triggered by the terminal device for the inactive SCell, so that the network device can know the information of the reference signal selected by the terminal device in a timely manner and improve network performance.

[0189] Optionally, in some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0190] It should be understood that the network device 500 according to the embodiments of this application may correspond to the network device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the network device 500 are respectively for implementing Figure 5 The corresponding procedures for network devices in method 300 shown are not described in detail here for the sake of brevity.

[0191] Figure 8 This is a schematic structural diagram of a communication device 600 provided in an embodiment of this application. Figure 8 The communication device 600 shown includes a processor 610, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0192] Optionally, such as Figure 8 As shown, the communication device 600 may further include a memory 620. The processor 610 can retrieve and run computer programs from the memory 620 to implement the methods described in this embodiment.

[0193] The memory 620 can be a separate device independent of the processor 610, or it can be integrated into the processor 610.

[0194] Optionally, such as Figure 8 As shown, the communication device 600 may also include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0195] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

[0196] Optionally, the communication device 600 may specifically be a network device in the embodiments of this application, and the communication device 600 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0197] Optionally, the communication device 600 may specifically be a mobile terminal / terminal device in the embodiments of this application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0198] Figure 9This is a schematic structural diagram of the chip according to an embodiment of this application. Figure 9 The chip 700 shown includes a processor 710, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0199] Optionally, such as Figure 9 As shown, chip 700 may further include memory 720. Processor 710 can retrieve and run computer programs from memory 720 to implement the methods described in this embodiment.

[0200] The memory 720 can be a separate device independent of the processor 710, or it can be integrated into the processor 710.

[0201] Optionally, the chip 700 may also include an input interface 730. The processor 710 can control the input interface 730 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0202] Optionally, the chip 700 may also include an output interface 740. The processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0203] Optionally, the chip can be applied to the network device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0204] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0205] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0206] Figure 10 This is a schematic block diagram of a communication system 900 provided in an embodiment of this application. Figure 10 As shown, the communication system 900 includes a terminal device 910 and a network device 920.

[0207] The terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 920 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, these will not be elaborated here.

[0208] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0209] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0210] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0211] This application also provides a computer-readable storage medium for storing computer programs.

[0212] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0213] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0214] This application also provides a computer program product, including computer program instructions.

[0215] Optionally, the computer program product can be applied to the network device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0216] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0217] This application also provides a computer program.

[0218] Optionally, the computer program can be applied to the network device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0219] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of this application. When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0220] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0221] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0222] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0223] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0224] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0225] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0226] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for wireless communication, characterized in that, include: When the terminal device receives the first signaling for activating the first secondary cell, and the first secondary cell is not activated, or there is no activated PUCCH SCell in the secondary PUCCH cell group to which the first secondary cell belongs, a beam failure recovery (BFR) is triggered for the first secondary cell, where the first secondary cell is a physical uplink control channel (PUCCH) secondary cell. The terminal device sends a BFR Media Access Control (MAC) CE to the network device on the first serving cell, wherein the first serving cell belongs to the primary PUCCH cell group, and the BFR MAC CE includes: information of the first secondary cell and identification information of at least one reference signal; If the first secondary cell is already activated, or if there is an activated PUCCH SCell in the secondary PUCCH cell group to which the first secondary cell belongs, cancel the triggered BFR.

2. The method according to claim 1, characterized in that, The BFR MAC CE includes a first bit map, which includes multiple bits, each bit corresponding to a cell. The value of each bit is used to indicate whether the corresponding cell has triggered BFR.

3. The method according to claim 1, characterized in that, The at least one reference signal is a reference signal in a candidate reference signal list, wherein the candidate reference signal list is pre-configured.

4. The method according to claim 3, characterized in that, The at least one reference signal is a reference signal whose signal quality in the candidate reference signal list meets the first threshold.

5. The method according to claim 4, characterized in that, The first threshold is pre-configured.

6. The method according to claim 3, characterized in that, The candidate reference signal list is sent by the network device to the terminal device via Radio Resource Control (RRC) signaling.

7. The method according to any one of claims 1-6, characterized in that, The reference signal is either a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

8. The method according to any one of claims 1-6, characterized in that, The method further includes: The terminal device sends a CSI report to the network device on the first secondary cell. The CSI report includes identification information of at least one reference signal and / or signal quality information of the at least one reference signal.

9. The method according to any one of claims 1-6, characterized in that, The first signaling is secondary cell activation MAC CE; or, The first signaling is RRC signaling, which is used to configure the PUCCH secondary cell and the activation status of the PUCCH secondary cell.

10. A method for wireless communication, characterized in that, include: The network device sends a first signaling message to the terminal device to activate the first secondary cell, where the first secondary cell is a Physical Uplink Control Channel (PUCCH) cell. If the first secondary cell is not activated, or if there is no activated PUCCH SCell in the secondary PUCCH cell group to which the first secondary cell belongs, the network device receives a Beam Failure Recovery Media Access Control (BFR MAC CE) sent by the terminal device on the first serving cell. The first serving cell belongs to the primary PUCCH cell group, and the BFR MAC CE includes: information of the first secondary cell and identification information of at least one reference signal. Specifically, if the first secondary cell is already activated, or if there is an activated PUCCH SCell in the secondary PUCCH cell group to which the first secondary cell belongs, the BFR is canceled from triggering.

11. The method according to claim 10, characterized in that, The BFR MAC CE includes a first bit map, which includes multiple bits, each bit corresponding to a cell, and the value of each bit is used to indicate the cell that triggers BFR.

12. The method according to claim 10, characterized in that, The at least one reference signal is a reference signal in a candidate reference signal list, wherein the candidate reference signal list is pre-configured.

13. The method according to claim 12, characterized in that, The at least one reference signal is a reference signal whose signal quality in the candidate reference signal list meets the first threshold.

14. The method according to claim 13, characterized in that, The network device sends the first threshold to the terminal device via Radio Resource Control (RRC) signaling.

15. The method according to claim 12, characterized in that, The network device sends the candidate reference signal list to the terminal device via RRC signaling.

16. The method according to any one of claims 10-15, characterized in that, The first signaling is secondary cell activation MAC CE; or, The first signaling is RRC signaling, which is used to configure the PUCCH secondary cell and the activation status of the PUCCH secondary cell.

17. A terminal device, characterized in that, include: The processing unit is configured to trigger a beam failure recovery (BFR) for the first secondary cell when it receives a first signaling for activating the first secondary cell and the first secondary cell is not activated, or there is no activated PUCCH SCell in the secondary PUCCH cell group to which the first secondary cell belongs. The first secondary cell is a physical uplink control channel (PUCCH) secondary cell. A communication unit is configured to send a BFR Media Access Control (MAC) CE to a network device on a first serving cell, wherein the first serving cell belongs to the primary PUCCH cell group, and the BFR MAC CE includes: information of the first secondary cell and identification information of at least one reference signal; The processing unit is further configured to cancel the triggered BFR if the first secondary cell has been activated, or if there is an activated PUCCH SCell in the secondary PUCCH cell group to which the first secondary cell belongs.

18. The terminal device according to claim 17, characterized in that, The BFR MAC CE includes a first bit map, which includes multiple bits, each bit corresponding to a cell. The value of each bit is used to indicate whether the corresponding cell has triggered BFR.

19. The terminal device according to claim 17, characterized in that, The at least one reference signal is a reference signal in a candidate reference signal list, wherein the candidate reference signal list is pre-configured.

20. The terminal device according to claim 19, characterized in that, The at least one reference signal is a reference signal whose signal quality in the candidate reference signal list meets the first threshold.

21. The terminal device according to claim 20, characterized in that, The first threshold is pre-configured.

22. The terminal device according to claim 19, characterized in that, The candidate reference signal list is sent by the network device to the terminal device via Radio Resource Control (RRC) signaling.

23. The terminal device according to any one of claims 17-22, characterized in that, The reference signal is either a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

24. The terminal device according to any one of claims 17-22, characterized in that, The communication unit is further configured to send a CSI report to the network device on the first secondary cell, the CSI report including identification information of at least one reference signal and / or signal quality information of the at least one reference signal.

25. The terminal device according to any one of claims 17-22, characterized in that, The first signaling is secondary cell activation MAC CE; or, The first signaling is RRC signaling, which is used to configure the PUCCH secondary cell and the activation status of the PUCCH secondary cell.

26. A network device, characterized in that, include: The communication unit is used to send a first signaling to the terminal device to activate the first secondary cell, wherein the first secondary cell is a Physical Uplink Control Channel (PUCCH) cell; The communication unit is further configured to receive a Beam Failure Recovery Media Access Control (BFR MAC CE) sent by the terminal device on the first serving cell when the first secondary cell is not activated or there is no activated PUCCH SCell in the secondary PUCCH cell group to which the first secondary cell belongs, wherein the first serving cell belongs to the primary PUCCH cell group, and the BFR MAC CE includes: information of the first secondary cell and identification information of at least one reference signal; Specifically, if the first secondary cell is already activated, or if there is an activated PUCCH SCell in the secondary PUCCH cell group to which the first secondary cell belongs, the BFR is canceled from triggering.

27. The network device according to claim 26, characterized in that, The BFR MAC CE includes a first bit map, which includes multiple bits, each bit corresponding to a cell, and the value of each bit is used to indicate the cell that triggers BFR.

28. The network device according to claim 26, characterized in that, The at least one reference signal is a reference signal in a candidate reference signal list, wherein the candidate reference signal list is pre-configured.

29. The network device according to claim 28, characterized in that, The at least one reference signal is a reference signal whose signal quality in the candidate reference signal list meets the first threshold.

30. The network device according to claim 29, characterized in that, The network device sends the first threshold to the terminal device via Radio Resource Control (RRC) signaling.

31. The network device according to claim 28, characterized in that, The network device sends the candidate reference signal list to the terminal device via RRC signaling.

32. The network device according to any one of claims 26-31, characterized in that, The first signaling is secondary cell activation MAC CE; or, The first signaling is RRC signaling, which is used to configure the PUCCH secondary cell and the activation status of the PUCCH secondary cell.

33. A terminal device, characterized in that, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 1 to 9.

34. A chip, characterized in that, include: A processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1 to 9.

35. A computer-readable storage medium, characterized in that, Used to store a computer program that causes a computer to perform the method as described in any one of claims 1 to 9.

36. A computer program product, characterized in that, It includes computer program instructions that cause a computer to perform the method as described in any one of claims 1 to 9.

37. A network device, characterized in that, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 10 to 16.

38. A chip, characterized in that, include: A processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 10 to 16.

39. A computer-readable storage medium, characterized in that, Used to store a computer program that causes a computer to perform the method as described in any one of claims 10 to 16.

40. A computer program product, characterized in that, It includes computer program instructions that cause a computer to perform the method as described in any one of claims 10 to 16.

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