WO2023065335A1 - Procédé de communication sans fil, dispositif terminal et dispositif de réseau - Google Patents

Procédé de communication sans fil, dispositif terminal et dispositif de réseau Download PDF

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Publication number
WO2023065335A1
WO2023065335A1 PCT/CN2021/125837 CN2021125837W WO2023065335A1 WO 2023065335 A1 WO2023065335 A1 WO 2023065335A1 CN 2021125837 W CN2021125837 W CN 2021125837W WO 2023065335 A1 WO2023065335 A1 WO 2023065335A1
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WIPO (PCT)
Prior art keywords
reference signal
secondary cell
terminal device
cell
network device
Prior art date
Application number
PCT/CN2021/125837
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English (en)
Chinese (zh)
Inventor
杜忠达
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202180100672.8A priority Critical patent/CN117643091A/zh
Priority to PCT/CN2021/125837 priority patent/WO2023065335A1/fr
Publication of WO2023065335A1 publication Critical patent/WO2023065335A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure

Definitions

  • the embodiments of the present application relate to the communication field, and in particular to a wireless communication method, a terminal device, and a network device.
  • PUCCH Physical Uplink Control Channel
  • PUCCH CG Physical Uplink Control Channel
  • SPCell the primary PUCCH cell group
  • secondary PUCCH cell group the secondary PUCCH cell group carrying the PUCCH in the PUCCH CG
  • PUCCH SCe11 the PUCCH secondary cell
  • the terminal device when receiving an SCell activation command at time slot n, the terminal device can report the channel state information (Channel State Information) to the network device at the earliest time slot n+k , CSI) report.
  • the prerequisite for the terminal device to report the CSI report is that at least one of the serving cells in the PUCCH group to which the SCell belongs is activated.
  • the terminal device can send the CSI report only after the SCell in the Secondary PUCCH group is activated, which affects network performance.
  • the present application provides a wireless communication method, a terminal device and a network device.
  • triggering BFR for an inactive secondary cell to report the reference signal information that needs to be reported through the CSI report it can ensure that the network device can know the information selected by the terminal device in a timely manner. Reference signal information to improve network performance.
  • a wireless communication method including: triggering beam failure recovery BFR for a first secondary cell when a terminal device receives a first signaling, the first signaling is used to activate the A first secondary cell, where the first secondary cell is a physical uplink control channel PUCCH secondary cell.
  • a wireless communication method including: a network device sends a first signaling to a terminal device, the first signaling is used to activate a first secondary cell, and the first secondary cell is a physical uplink control Channel PUCCH cell;
  • the network device When the first secondary cell is not activated, the network device receives a beam failure recovery medium access control element BFR MAC CE sent by the terminal device.
  • a terminal device configured to execute the method in the foregoing first aspect or various implementation manners thereof.
  • the terminal device includes a functional module for executing the method in the above first aspect or its various implementation manners.
  • a network device configured to execute the method in the foregoing second aspect or various implementation manners thereof.
  • the network device includes a functional module for executing the method in the above second aspect or each implementation manner thereof.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above first aspect or its various implementations.
  • a sixth aspect provides a network device, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above second aspect or its various implementations.
  • a chip is provided for implementing any one of the above first aspect to the second aspect or the method in each implementation manner thereof.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first to second aspects or any of the implementations thereof. method.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.
  • a ninth aspect provides a computer program product, including computer program instructions, the computer program instructions cause a computer to execute any one of the above first to second aspects or the method in each implementation manner.
  • a computer program which, when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.
  • the terminal device can trigger BFR for the secondary cell after receiving the activation signaling of the secondary cell. It does not need to wait for the activation of the secondary cell before reporting the information of the reference signal, so as to ensure that the network equipment obtains the information of the reference signal selected by the terminal equipment in a timely manner, and improves network performance.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Fig. 2 is a schematic diagram of an SCell activation process according to an embodiment of the present application.
  • Fig. 3 is a schematic interaction diagram of a wireless communication method provided according to an embodiment of the present application.
  • Fig. 4 is a schematic format diagram of a BFR MAC CE provided according to an embodiment of the present application.
  • Fig. 5 is a schematic interaction diagram of another wireless communication method provided according to an embodiment of the present application.
  • Fig. 6 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • Fig. 7 is a schematic block diagram of a network device provided according to an embodiment of the present application.
  • Fig. 8 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 9 is a schematic block diagram of a chip provided according to an embodiment of the present application.
  • Fig. 10 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • the technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (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 system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) on unlicensed spectrum unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.
  • GSM Global System of Mobile
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent (Standalone, SA) deployment Web scene.
  • Carrier Aggregation, CA Carrier Aggregation
  • DC Dual Connectivity
  • SA independent deployment Web scene
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered as non-shared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (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.
  • user equipment User Equipment, UE
  • access terminal user unit
  • user station mobile station
  • mobile station mobile station
  • remote station remote terminal
  • mobile device user terminal
  • terminal wireless communication device
  • wireless communication device user agent or user device
  • the terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • PLMN Public Land Mobile Network
  • 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, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • a virtual reality (Virtual Reality, VR) terminal device an augmented reality (Augmented Reality, AR) terminal Equipment
  • wireless terminal equipment in industrial control wireless terminal equipment in self driving
  • wireless terminal equipment in remote medical wireless terminal equipment in smart grid
  • wireless terminal equipment in transportation safety wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the network device may be a device for communicating with the mobile device, and the network device may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA , or a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • Evolutional Node B, eNB or eNodeB evolved base station
  • LTE Long Term Evolutional Node B, eNB or eNodeB
  • gNB network equipment in the network or the network equipment in the future evolved PLMN network or the network equipment in the NTN network, etc.
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network equipment may be a satellite or a balloon station.
  • the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc.
  • the network device may also be a base station installed on land, water, and other locations.
  • the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
  • a cell corresponding to a base station may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell), where the small cell may include: a Metro cell, a Micro cell, a pico cell ( Pico cell), Femto cell, etc.
  • These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device for communicating with a terminal device 120 (or called a communication terminal, terminal).
  • the network device 110 can provide communication coverage for a specific geographical area, and can communicate with terminal devices located in the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • a device with a communication function in the network/system in the embodiment of the present application may be referred to as a communication device.
  • the communication equipment may include a network equipment 110 and a terminal equipment 120 with communication functions.
  • the network equipment 110 and the terminal equipment 120 may be the specific equipment described above, and will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in this embodiment of the present application.
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • predefinition can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate related information in devices (for example, including terminal devices and network devices).
  • the implementation method is not limited.
  • pre-defined may refer to defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, it may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which is not limited in the present application.
  • Multi-beam multi-beam
  • the design goal of the NR system includes large-bandwidth communication in a high-frequency band (for example, a frequency band above 6 GHz).
  • a high-frequency band for example, a frequency band above 6 GHz.
  • the path loss in the transmission process will increase, thereby affecting the coverage capability of the high-frequency system.
  • an effective technical solution is based on a massive antenna array (Massive MIMO) to form a shaped beam with greater gain, overcome propagation loss, and ensure system coverage.
  • Mass MIMO massive antenna array
  • the millimeter-wave antenna array due to the shorter wavelength, smaller antenna element spacing and smaller aperture, allows more physical antenna elements to be integrated in a limited-sized two-dimensional antenna array.
  • Due to the limited size of the millimeter-wave antenna array from Considering factors such as hardware complexity, cost overhead, and power consumption, digital beamforming cannot be used, but analog beamforming is usually used, which can reduce the complexity of device implementation while enhancing network coverage.
  • a cell uses a wider beam (beam) to cover the entire cell. Therefore, at each moment, UEs within the coverage of the cell have a chance to obtain transmission resources allocated by the system.
  • NR's Multi-beam system covers the entire cell through different beams, that is, each beam covers a small area, and the effect of multiple beams covering the entire cell is achieved through time sweeping.
  • synchronization signals/physical broadcast channel blocks (synchronization signal/physical broadcast channel block, SS/PBCH block, or SSB) are transmitted on different beams, and the UE can distinguish different beams through different SSBs.
  • CSI-RS Channel State Information Reference Signal
  • a physical downlink control channel Physical Downlink Control Channel, PDCCH
  • a physical downlink shared channel Physical Downlink Shared Channel, PDSCH
  • the terminal device In order for the network device to perform reasonable scheduling, the terminal device needs to feed back CSI so that the network device can determine the scheduling information of the terminal device such as the number of transmission layers, precoding matrix, transmission beam, and modulation and coding mode.
  • the CSI reporting of the terminal device is performed based on the CSI reporting configuration indicated by the network device.
  • Each CSI reporting configuration corresponds to one CSI reporting, and what content is included in the CSI is determined by reporting quantity information (reportQuantity) in the CSI reporting configuration.
  • the CSI reporting amount may be configured to include indication information of a reference signal (or beam) selected by the terminal device and/or a measurement result of the reference signal (or beam) selected by the terminal device.
  • the reference signal may include, but not limited to, a synchronization signal block (Synchronization Signal Block, SSB), and a channel state information reference signal (Channel State Information-Reference Signal, CSI-RS).
  • SSB Synchronization Signal Block
  • CSI-RS Channel State Information-Reference Signal
  • the SSB may also be called a synchronization signal/physical broadcast channel block (SS/PBCH block).
  • SS/PBCH block synchronization signal/physical broadcast channel block
  • a physical uplink control channel (Physical Uplink Control Channel, PUCCH) cell group (PUCCH Cell Groups, PUCCH CG) concept is introduced.
  • PUCCH Physical Uplink Control Channel
  • PUCCH CG Physical Uplink Control Channel
  • SPCell the special cell
  • secondary PUCCH cell group the secondary PUCCH cell group carrying the PUCCH in the PUCCH CG
  • PUCCH SCe11 the PUCCH secondary cell
  • the SPcell may refer to a primary cell (PCell) or a primary secondary cell (PScell).
  • PCell primary cell
  • PScell primary secondary cell
  • the terminal device when an SCell activation command is received at time slot n, the terminal device can report the channel state information (Channel State Information, CSI) report to the network device at the earliest time point time slot n+k, the CSI The report is used to report a reference signal with better signal quality to the network device. As shown in FIG. 2 , the terminal device may activate the SCell between time slot n+k and a specified activation delay requirement, and further, report a CSI report to the network device on the SCell.
  • CSI Channel State Information
  • the prerequisite for the terminal device to report the CSI report is that at least one of the serving cells in the PUCCH group to which the SCell belongs is activated.
  • the terminal device can send the CSI report only after the SCell in the Secondary PUCCH group is activated, which affects network performance. Therefore, how to timely notify the network device of a reference signal with better signal quality is an urgent problem to be solved.
  • FIG. 3 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application.
  • the method 200 can be executed by a terminal device in the communication system shown in FIG. 1.
  • the method 200 includes the following content :
  • trigger beam failure recovery beam failure recovery, BFR
  • PUCCH secondary cell that is, PUCCH SCell
  • the first signaling is to activate MAC CE (SCell
  • the secondary cell activation MAC CE is used to activate the first secondary cell.
  • the first signaling is radio resource control (Radio Resource Control, RRC) signaling
  • RRC Radio Resource Control
  • the RRC signaling may configure the first secondary cell as a PUCCH secondary cell, and configure an activation state parameter (sCellState) of the first secondary cell as activated, so as to activate the first secondary cell.
  • sCellState activation state parameter
  • the first secondary cell belongs to a secondary PUCCH cell group, that is, a Secondary PUCCH group.
  • the terminal device 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 pass through the Secondary PUCCH group
  • the PUCCH SCell in the network reports the CSI report to the network device. Recorded as case 1.
  • the method 200 further includes:
  • the terminal device sends a BFR medium access control element MAC CE to the network device on the first serving cell, where the first serving cell belongs to a primary PUCCH cell group, namely Primary PUCCH group.
  • the terminal device can use the serving cell in the Primary PUCCH group as the first secondary cell.
  • the cell triggers BFR.
  • the information of the reference signal to be reported in the CSI report is reported to the network device through the triggered BFR.
  • the BFR MAC CE includes at least one of the following:
  • the information of the first secondary cell is identification information of at least one reference signal.
  • the terminal device indicates to the network device that the BFR MAC CE sent by the first serving cell is the BFR triggered for the first secondary cell by carrying the information of the first secondary cell in the BFR MAC CE.
  • the BFR MAC CE can indicate the target cell that triggers the BFR through a bitmap (bitmap).
  • the BFR MAC CE includes a first bitmap, the first bitmap includes a plurality of bits, each bit corresponds to a cell, and the value of each bit is used to indicate whether the corresponding cell triggers BFR, or in other words, the The values of multiple bits are used to determine which cell the BFR MAC CE is triggered for.
  • Figure 4 shows a typical format of a BFR MAC CE.
  • C7 ⁇ C1 correspond to 7 SCells
  • SP corresponds to SPcell.
  • the value of a bit is 0 to indicate that it is not corresponding A cell triggers BFR, and a value of 1 indicates that the corresponding cell triggers BFR.
  • the value of C3 is 1, and the value of other bits is 0, it means that the SCell corresponding to C3 triggers BFR.
  • the at least one reference signal is a reference signal in a candidate reference signal list (candidateBeamRSSCellList), wherein the candidate reference signal list is preconfigured.
  • the candidate reference signal list is sent by the network device to the terminal device through RRC signaling.
  • the candidate reference signal list is sent to the terminal device before the activation of the first secondary cell.
  • the at least one reference signal is a reference signal whose signal quality satisfies a first threshold (for example, greater than the first threshold, or greater than or equal to the first threshold) in the candidate reference signal list.
  • a first threshold for example, greater than the first threshold, or greater than or equal to the first threshold
  • the first threshold is preconfigured.
  • the first threshold is sent by the network device to the terminal device through RRC signaling.
  • the first threshold is sent to the terminal device before the first secondary cell is activated.
  • the signal quality of the at least one reference signal may be characterized by at least one of the following indicators: Reference Signal Received Power (Reference Signal Receiving Power, RSRP), Reference Signal Received Quality (Reference Signal Receiving Quality, RSRQ), signal Signal to Interference plus Noise Ratio (SINR).
  • Reference Signal Received Power Reference Signal Receiving Power
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • SINR signal Signal to Interference plus Noise Ratio
  • the first threshold may be an RSRP threshold (or called rsrp-ThresholdBFR), an RSRQ threshold, or an SINR threshold.
  • the signal quality of the at least one reference signal is characterized by a physical layer unfiltered measurement result, such as Layer 1-RSRP (L1-RSRP).
  • L1-RSRP Layer 1-RSRP
  • Figure 4 shows a typical format of a BFR MAC CE, for example, the BFR MAC CE may include the identification of the candidate reference signal that needs to be reported in the candidate reference signal list.
  • the terminal device may also indicate the candidate reference signal reported by the terminal device in a bitmap manner.
  • the BFR MAC CE includes a second bitmap, the second bitmap includes a plurality of bits, each bit corresponds to a candidate reference signal in the candidate reference signal list, and the value of each bit is used to indicate the corresponding candidate reference signal Whether the first threshold is met, 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.
  • 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, the second bitmap includes B1 ⁇ B8, corresponding to RS8 ⁇ RS1 respectively, then the second bitmap Can be 00000100.
  • the reference signal may include but not limited to SSB and CSI-RS, for example.
  • the first secondary cell before receiving the first signaling, the first secondary cell has been activated, or there is an activated PUCCH SCell in the Secondary PUCCH group to which the first secondary cell belongs. Recorded as case 2.
  • the method 200 further includes:
  • the end device cancels the triggered BFR.
  • the terminal device cancels the triggered BFR.
  • method 200 also includes:
  • the terminal device sends a CSI report to the network device on the first secondary cell, where 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 terminal device sends a CSI report to the network device on the second secondary cell, where the CSI report includes identification information of at least one reference signal and/or signal quality information of the at least one reference signal, where the second secondary
  • the cell may be a PUCCH SCell activated in the Secondary PUCCH group to which the first secondary cell belongs.
  • the CSI report is sent to the network device on the first secondary cell.
  • the CSI report is sent to the network device on the second secondary cell.
  • the terminal device may not trigger BFR for the first secondary cell, but report CSI 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 Report.
  • the terminal device can trigger BFR for the SCell when it receives the activation signaling of the SCell, but the SCell has not been activated, or there is no activated PUCCH SCell in the Secondary PUCCH group to which the SCell belongs.
  • the network device reports the information of the reference signal that needs to be reported through the CSI report, without waiting for the Schell to be activated before reporting the information of the reference signal, so as to ensure that the network device can know the information of the reference signal with better signal quality selected by the terminal device in a timely manner. information to improve network performance.
  • FIG. 5 is a schematic flowchart of a wireless communication method 300 according to another embodiment of the present application.
  • the method 300 may be executed by a network device in the communication system shown in FIG. 1 .
  • the method 300 includes As follows:
  • the network device sends first signaling to the terminal device, where the first signaling is used to activate a first secondary cell, where the first secondary cell is a physical uplink control channel PUCCH cell;
  • the network device receives the beam failure recovery media access control control element BFR MAC CE sent by the terminal device.
  • the BFR MAC CE may be sent when the first secondary cell is not activated, or sent when there is no activated PUCCH SCell in the Secondary PUCCH group to which the first secondary cell belongs.
  • the first signaling is to activate MAC CE (SCell
  • the secondary cell activation MAC CE is used to activate the first secondary cell.
  • the first signaling is radio resource control (Radio Resource Control, RRC) signaling
  • RRC Radio Resource Control
  • the RRC signaling may configure the first secondary cell as a PUCCH secondary cell, and configure an activation state parameter (sCellState) of the first secondary cell as activated, so as to activate the first secondary cell.
  • sCellState activation state parameter
  • the first secondary cell belongs to a secondary PUCCH cell group, that is, a Secondary PUCCH group.
  • the terminal device 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 pass through the Secondary PUCCH group
  • the PUCCH SCell in the network reports the CSI report to the network device. Recorded as case 1.
  • the S310 includes:
  • the BFR MAC CE sent by the terminal device is received on the first serving cell, where the first serving cell belongs to a primary PUCCH cell group, namely Primary PUCCH group.
  • the network device can receive the terminal device's service for the secondary cell through the serving cell in the Primary PUCCH group. BFR triggered by the first secondary cell. The information of the reference signal reported through the CSI report is acquired through the triggered BFR.
  • the BFR MAC CE includes at least one of the following:
  • the information of the first secondary cell is identification information of at least one reference signal.
  • the terminal device indicates to the network device that the BFR MAC CE sent by the first serving cell is the BFR triggered for the first secondary cell by carrying the information of the first secondary cell in the BFR MAC CE.
  • the BFR MAC CE can indicate the target cell that triggers the BFR through a bitmap (bitmap).
  • the BFR MAC CE includes a first bitmap, the first bitmap includes a plurality of bits, each bit corresponds to a cell, and the value of each bit is used to indicate whether the corresponding cell triggers BFR, or in other words, the The values of multiple bits are used to determine which cell the BFR MAC CE is triggered for.
  • Figure 4 shows a typical format of a BFR MAC CE.
  • C7 ⁇ C1 correspond to 7 SCells
  • SP corresponds to SPcell.
  • the value of a bit is 0 to indicate that it is not corresponding A cell triggers BFR, and a value of 1 indicates that the corresponding cell triggers BFR.
  • the value of C3 is 1, and the value of other bits is 0, it means that the SCell corresponding to C3 triggers BFR.
  • the at least one reference signal is a reference signal in a candidate reference signal list, wherein the candidate reference signal list is preconfigured.
  • the candidate reference signal list is sent by the network device to the terminal device through RRC signaling.
  • the candidate reference signal list is sent to the terminal device before the activation of the first secondary cell.
  • the at least one reference signal is a reference signal whose signal quality satisfies a first threshold (for example, greater than the first threshold, or greater than or equal to the first threshold) in the candidate reference signal list.
  • a first threshold for example, greater than the first threshold, or greater than or equal to the first threshold
  • the first threshold is preconfigured.
  • the first threshold is sent by the network device to the terminal device through RRC signaling.
  • the first threshold is sent to the terminal device before the first secondary cell is activated.
  • the signal quality of the at least one reference signal may be characterized by at least one of the following indicators: Reference Signal Received Power (Reference Signal Receiving Power, RSRP), Reference Signal Received Quality (Reference Signal Receiving Quality, RSRQ), signal Signal to Interference plus Noise Ratio (SINR).
  • Reference Signal Received Power Reference Signal Receiving Power
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • SINR signal Signal to Interference plus Noise Ratio
  • the first threshold may be an RSRP threshold, an RSRQ threshold, or an SINR threshold.
  • the signal quality of the at least one reference signal is characterized by a physical layer unfiltered measurement result, such as Layer 1-RSRP (L1-RSRP).
  • L1-RSRP Layer 1-RSRP
  • Figure 4 shows a typical format of a BFR MAC CE, for example, the BFR MAC CE may include the identification of the candidate reference signal that needs to be reported in the candidate reference signal list.
  • the terminal device may also indicate the candidate reference signal reported by the terminal device through a bitmap, for example, the BFR MAC CE includes a second bitmap, and the second bitmap includes multiple bits, each bit corresponding to a candidate reference signal For a candidate reference signal in the reference signal list, the value of each bit is used to indicate whether the corresponding candidate reference signal satisfies 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.
  • 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, the second bitmap includes B1 ⁇ B8, corresponding to RS8 ⁇ RS1 respectively, then the second bitmap Can be 00000100.
  • the reference signal may include, but not limited to, a synchronization signal block (Synchronization Signal Block, SSB), and a channel state information reference signal (Channel State Information-Reference Signal, CSI-RS).
  • SSB Synchronization Signal Block
  • CSI-RS Channel State Information-Reference Signal
  • the SSB may also be called a synchronization signal/physical broadcast channel block (SS/PBCH block).
  • SS/PBCH block synchronization signal/physical broadcast channel block
  • the first secondary cell before receiving the first signaling, the first secondary cell has been activated, or there is an activated PUCCH SCell in the Secondary PUCCH group to which the first secondary cell belongs. Recorded as case 2.
  • method 200 also includes:
  • the network device receives a CSI report sent by a terminal device on the first secondary cell, where 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 network device receives a CSI report sent by the terminal device on the second secondary cell, where the CSI report includes identification information of at least one reference signal and/or signal quality information of the at least one reference signal, wherein the second secondary cell It can be the PUCCH SCell activated in the Secondary PUCCH group to which the first secondary cell belongs.
  • the terminal device may not trigger BFR for the first secondary cell, but report CSI 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 Report.
  • the network device can obtain the reference signal information that the terminal device needs to report through the CSI report through the BFR triggered by the terminal device for the inactive SCell, so that the network device can know the reference signal with better signal quality selected by the terminal device in a timely manner. signal information to improve network performance.
  • Fig. 6 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 includes:
  • the processing unit 410 is configured to trigger beam failure recovery BFR for a first secondary cell when a first signaling is received, the first signaling is used to activate the first secondary cell, and the first secondary cell It is the physical uplink control channel PUCCH secondary cell.
  • the terminal device 400 further includes:
  • a communication unit configured to send a BFR Media Access Control Element MAC CE to a network device on a first serving cell, where the first serving cell belongs to a primary PUCCH cell group.
  • the BFR MAC CE includes at least one of the following:
  • the information of the first secondary cell is identification information of at least one reference signal.
  • the BFR MAC CE includes a first bitmap, the first bitmap includes a plurality of bits, each bit corresponds to a cell, and the value of each bit is used to indicate the corresponding Whether the cell triggers BFR.
  • the at least one reference signal is a reference signal in a candidate reference signal list, where the candidate reference signal list is preconfigured.
  • the at least one reference signal is a reference signal whose signal quality satisfies a first threshold in the candidate reference signal list.
  • the first threshold is preconfigured.
  • the candidate reference signal list is sent by the network device to the terminal device through radio resource control RRC signaling.
  • the reference signal is a synchronization signal block SSB or a channel state information reference signal CSI-RS.
  • the processing unit is also used for:
  • the terminal device further includes:
  • a communication unit configured to send a CSI report to a network device on the first secondary cell, where 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 first signaling is to activate MAC CE of the secondary cell
  • the first signaling is RRC signaling, and the RRC signaling is used to configure a PUCCH secondary cell and an activation state of the PUCCH secondary cell.
  • the first secondary cell belongs to a secondary PUCCH cell group.
  • the terminal device 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,
  • the information of the reference signal that needs to be reported through the CSI report is reported to the network device, without waiting for the secondary cell to be activated before reporting the information of the reference signal, so that the network device can be guaranteed to know the terminal device in time
  • the information of the selected reference signal is used to improve network performance.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 400 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are to realize the For the sake of brevity, the corresponding process of the terminal device in the shown method 200 will not be repeated here.
  • Fig. 7 is a schematic block diagram of a network device according to an embodiment of the present application.
  • the network device 500 of FIG. 7 includes:
  • a communication unit 510 configured to send first signaling to the terminal device, where the first signaling is used to activate a first secondary cell, where the first secondary cell is a physical uplink control channel PUCCH cell;
  • the communication unit 510 is specifically used for:
  • the BFR MAC CE includes at least one of the following:
  • the information of the first secondary cell is identification information of at least one reference signal.
  • the BFR MAC CE includes a first bitmap, the first bitmap includes a plurality of bits, each bit corresponds to a cell, and the value of each bit is used to indicate the triggering of BFR district.
  • the at least one reference signal is a reference signal in a candidate reference signal list, where the candidate reference signal list is preconfigured.
  • the at least one reference signal is a reference signal whose signal quality satisfies a first threshold in the candidate reference signal list.
  • the network device sends the first threshold to the terminal device through radio resource control RRC signaling.
  • the network device sends the candidate reference signal list to the terminal device through RRC signaling.
  • the first signaling is to activate MAC CE of the secondary cell
  • the first signaling is RRC signaling, and the RRC signaling is used to configure a PUCCH secondary cell and an activation state of the PUCCH secondary cell.
  • the first secondary cell belongs to a secondary PUCCH cell group.
  • the network device can obtain the reference signal information that the terminal device needs to report through the CSI report through the BFR triggered by the terminal device for the inactive SCell, so that the network device can know the reference signal selected by the terminal device in time information to improve network performance.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the network device 500 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 500 are for realizing the method shown in FIG. 5
  • the corresponding processes of the network devices in 300 will not be repeated here.
  • FIG. 8 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
  • the communication device 600 shown in FIG. 8 includes a processor 610, and the processor 610 can invoke and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620 .
  • the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.
  • the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or receive other Information or data sent by the device.
  • 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.
  • the communication device 600 may specifically be the network device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • the communication device 600 may specifically be the mobile terminal/terminal device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, for the sake of brevity , which will not be repeated here.
  • FIG. 9 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 9 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720 .
  • the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.
  • the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .
  • 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, can obtain information or data sent by other devices or chips.
  • 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, can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • Fig. 10 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 10 , the communication system 900 includes a terminal device 910 and a network device 920 .
  • the terminal device 910 can be used to realize the corresponding functions realized by the terminal device in the above method
  • the network device 920 can be used to realize the corresponding functions realized by the network device in the above method.
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDR SDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synchlink DRAM, SLDRAM Direct Memory Bus Random Access Memory
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application , for the sake of brevity, it is not repeated here.
  • the embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the Let me repeat for the sake of brevity, the Let me repeat.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, For the sake of brevity, details are not repeated here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program executes each method in the embodiment of the present application to be implemented by the mobile terminal/terminal device
  • the corresponding process will not be repeated here.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de communication sans fil, un dispositif terminal et un dispositif de réseau. Le procédé comprend les étapes suivantes consistant à : lorsqu'un dispositif terminal reçoit une première signalisation, déclencher une récupération de défaillance de faisceau (BFR) pour une première cellule secondaire, la première signalisation étant utilisée pour activer la première cellule secondaire, et la première cellule secondaire étant une cellule secondaire de canal de commande de liaison montante physique (PUCCH).
PCT/CN2021/125837 2021-10-22 2021-10-22 Procédé de communication sans fil, dispositif terminal et dispositif de réseau WO2023065335A1 (fr)

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CN202180100672.8A CN117643091A (zh) 2021-10-22 2021-10-22 无线通信的方法、终端设备和网络设备
PCT/CN2021/125837 WO2023065335A1 (fr) 2021-10-22 2021-10-22 Procédé de communication sans fil, dispositif terminal et dispositif de réseau

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CN111866959A (zh) * 2019-04-30 2020-10-30 华为技术有限公司 波束失败上报的方法和装置
WO2021007826A1 (fr) * 2019-07-17 2021-01-21 Oppo广东移动通信有限公司 Procédé de communication sans fil, dispositif de terminal et dispositif de réseau
US20210021320A1 (en) * 2018-04-05 2021-01-21 Nokia Technologies Oy Beam failure recovery for serving cell
CN112351452A (zh) * 2019-08-09 2021-02-09 夏普株式会社 由用户设备执行的方法以及用户设备
CN113497694A (zh) * 2020-04-07 2021-10-12 维沃移动通信有限公司 测量参考信号的方法和终端设备

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US20210021320A1 (en) * 2018-04-05 2021-01-21 Nokia Technologies Oy Beam failure recovery for serving cell
CN111866959A (zh) * 2019-04-30 2020-10-30 华为技术有限公司 波束失败上报的方法和装置
WO2021007826A1 (fr) * 2019-07-17 2021-01-21 Oppo广东移动通信有限公司 Procédé de communication sans fil, dispositif de terminal et dispositif de réseau
CN112351452A (zh) * 2019-08-09 2021-02-09 夏普株式会社 由用户设备执行的方法以及用户设备
CN111836279A (zh) * 2019-08-23 2020-10-27 维沃移动通信有限公司 一种发生波束失败的处理方法和终端
CN113497694A (zh) * 2020-04-07 2021-10-12 维沃移动通信有限公司 测量参考信号的方法和终端设备

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