WO2021159398A1 - Beam failure recovery method and apparatus - Google Patents

Beam failure recovery method and apparatus Download PDF

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Publication number
WO2021159398A1
WO2021159398A1 PCT/CN2020/075106 CN2020075106W WO2021159398A1 WO 2021159398 A1 WO2021159398 A1 WO 2021159398A1 CN 2020075106 W CN2020075106 W CN 2020075106W WO 2021159398 A1 WO2021159398 A1 WO 2021159398A1
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WO
WIPO (PCT)
Prior art keywords
terminal
mac
network device
transmission beam
response message
Prior art date
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PCT/CN2020/075106
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French (fr)
Chinese (zh)
Inventor
管鹏
张希
樊波
Original Assignee
华为技术有限公司
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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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202080095095.3A priority Critical patent/CN115039486A/en
Priority to PCT/CN2020/075106 priority patent/WO2021159398A1/en
Publication of WO2021159398A1 publication Critical patent/WO2021159398A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • This application relates to the field of communications, and more specifically, to a method and device for beam failure recovery.
  • analog beams are directional.
  • the main lobe direction and beam width (for example, 3dB) can be used to describe an analog beam pattern.
  • the narrower the beam width the greater the antenna gain.
  • Network devices and terminals can send and receive in specific directions. Take the following communication as an example. The network device sends in a specific direction, and the terminal device receives in a specific direction. Normal communication can only be realized when the sending and receiving directions are aligned. In order to achieve beam alignment (that is, alignment of the transmit beam at the transmitting end and the receive beam at the receiving end), beam training is required.
  • downlink beam training is achieved by sending one or more reference signals through the network device, and the terminal measures the reference signals sent by the network device and reporting the measurement results.
  • Downlink beam training can complete beam selection, beam quality measurement and reporting, beam tracking and other functions.
  • This process can be called beam failure recovery (BFR) process, or link recovery process (link recovery procedures).
  • the present application provides a method and device for beam failure recovery.
  • the terminal can achieve rapid communication with the network device, that is, reduce The time delay of beam failure recovery.
  • a method for beam failure recovery includes: receiving a trigger message when a terminal fails in a beam of a first transmission beam with a network device and does not find a second transmission beam, and
  • the second transmission beam is a transmission beam that the network device can communicate with the terminal; the terminal receives multiple reference signals from the network device according to the trigger message, and the multiple reference signals are used to determine the second transmission beam.
  • the first transmission beam is the transmission beam of the network device. If the first transmission beam of the communication between the terminal and the network device fails and the second transmission beam is not found, the terminal detects and receives the trigger message sent by the network device. After receiving the trigger message, the terminal can perform beam training again. For example, the terminal may adjust the current state to the state of receiving the reference signal.
  • the terminal may receive multiple reference signals sent from the network device, where the reference signal and the transmission beam may have an association relationship or a mapping relationship, so that the terminal can determine a second transmission beam capable of communicating with the terminal according to the multiple reference signals. In other words, the terminal does not need to reconnect to the network device to achieve beam recovery, and the delay of beam recovery is relatively short compared to reconnecting to the network device. That is, the embodiment of the present application can help reduce beam failure recovery. Time delay.
  • the method further includes: when the terminal does not find the second transmission beam in the first transmission beam set, selecting the second transmission beam from the second transmission beam set, wherein the multiple The reference signal corresponds to the transmission beams in the second transmission beam set, and the transmission beams included in the second transmission beam set may be partially or completely different from the transmission beams in the first transmission beam set.
  • the network device may configure a new available transmission beam set for the terminal by sending a beam set. If the terminal does not find a second transmission beam in the first transmission beam set, the network device may also configure a second transmission beam set for the terminal. Since the second transmit beam set has beams that are not included in the first transmit beam set, the terminal may find the second transmit beam from the second transmit beam set, so that the terminal can achieve beam failure recovery and improve the success of beam failure recovery Rate.
  • the method further includes: the terminal sends a media intervention control control unit MAC CE, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device has failed and is not found The second transmission beam; the terminal receives the MAC CE response message, the MAC CE response message is used to indicate that the network device has received the MAC CE; where the terminal is in the first transmission beam between the network device In the case that the beam fails and the second transmission beam is not found, receiving the trigger message includes: the terminal receives the trigger message after receiving the response message of the MAC CE.
  • the trigger message may be sent by the network device separately, which improves the flexibility of the network device to send the trigger message.
  • the method further includes: the terminal sends a MAC CE, where the MAC CE is used to indicate that the terminal has failed in the beam of the first transmission beam with the network device, and the second transmission beam is not found.
  • Transmission beam wherein, in the case that the first transmission beam between the terminal and the network device fails, and the second transmission beam is not found, the receiving trigger message includes: the terminal is between the network device and the network device. If the beam of the first transmission beam fails and the second transmission beam is not found, the MAC CE response message is received. The MAC CE response message is used to indicate that the network device has received the MAC CE, and the MAC CE The response message includes the trigger message.
  • the response message of the MAC CE may carry the trigger message, which reduces the time for the terminal to wait for the trigger message, that is, accelerates the terminal to find a new available beam.
  • the embodiments of the present application can further reduce the time delay of beam failure recovery.
  • the method further includes: when the terminal receives the response message of the MAC CE, stopping detecting the reference signal corresponding to the first transmission beam.
  • the terminal When the terminal receives the MAC CE response message and determines that the beam of the first transmission beam fails, it can stop detecting the reference signal corresponding to the first transmission beam, avoiding the power consumption caused by continuously detecting the reference signal corresponding to the first transmission beam Waste, that is, the embodiment of the present application saves the power consumption of the terminal.
  • the method further includes: when receiving the MAC CE response message, the terminal stops sending indication information to the upper layer, where the indication information is used to indicate that the beam of the first transmission beam fails.
  • the terminal Since the terminal has successfully fed back the beam failure information to the network device, there is no need to perform beam failure detection for the first transmission beam, thereby saving the power consumption of the terminal.
  • the method further includes: when the terminal receives the MAC CE response message, stopping or not starting the beam failure timer.
  • the terminal may not stop the timing of the beam failure timer or not start the timing of the beam failure timer. In this way, the terminal can wait for beam recovery without performing follow-up operations after beam failure, for example, the terminal reconnects to the network device, which saves the power consumption of the terminal.
  • the method further includes: the terminal communicates with the network device using the second transmission beam.
  • the network device can use the second transmitting beam to communicate with the terminal, which realizes rapid recovery of beam failure and reduces the time delay of beam failure recovery.
  • a method for beam failure recovery includes: when the first transmission beam between the network device and the terminal fails, and the terminal does not find the second transmission beam, the terminal Send a trigger message, the trigger message is used to trigger the terminal to detect a reference signal, where the second transmission beam is a transmission beam that the network device can communicate with the terminal; the network device sends multiple reference signals to the terminal, and the multiple A reference signal is used to determine the second transmission beam.
  • the terminal detects and receives the trigger message sent by the network device, so that the terminal, after receiving the trigger message, Perform beam training again. For example, the terminal may adjust the current state to the state of receiving the reference signal.
  • the terminal may receive multiple reference signals sent from the network device, where the reference signal and the transmission beam may have an association relationship or a mapping relationship, so that the terminal can determine a second transmission beam capable of communicating with the terminal according to the multiple reference signals.
  • the terminal does not need to reconnect to the network device to achieve beam recovery, and the delay of beam recovery is relatively short compared to reconnecting to the network device. That is, the embodiment of the present application can help reduce beam failure recovery. Time delay.
  • the method before the network device sends the trigger message to the terminal, the method further includes: the network device receives a media intervention control unit MAC CE from the terminal, and the MAC CE is used to instruct the terminal to communicate with the terminal. The beam of the first transmission beam between the network devices failed, and the second transmission beam was not found; the network device sends the MAC CE response message to the terminal, and the MAC CE response message is used to instruct the network device to receive To the MAC CE.
  • the trigger message can be sent separately, which improves the flexibility of sending the trigger message.
  • the method further includes: the network device receives a MAC CE from the terminal, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device has failed and is not found The second transmission beam; wherein, in the case that the first transmission beam between the network device and the terminal fails, and the terminal does not find the second transmission beam, sending a trigger message to the terminal includes: the network device is After receiving the MAC CE, send a response message of the MAC CE to the terminal. The response message of the MAC CE is used to indicate that the network device has received the MAC CE, and the response message of the MAC CE includes the trigger message.
  • the network device can carry the trigger message through the response message of the MAC CE, which reduces the time for the terminal to wait for the trigger message and speeds up the time for the terminal to find a new available beam.
  • the method further includes: the network device communicates with the terminal through the second transmission beam.
  • the network device can use the second transmitting beam to communicate with the terminal, which realizes rapid recovery of beam failure and reduces the time delay of beam failure recovery.
  • an apparatus for beam failure recovery includes: a receiving module for receiving a trigger message when the beam of the first transmit beam with the network device fails and the second transmit beam is not found ,
  • the second transmission beam is a transmission beam that the network device can communicate with the terminal;
  • the receiving module is further configured to receive multiple reference signals from the network device according to the trigger message, and the multiple reference signals are used to determine the second transmission beam.
  • the device further includes a sending module configured to send a media intervention control control unit MAC CE, where the MAC CE is used to indicate the beam of the first sending beam between the terminal and the network device Failed, and the second transmission beam is not found; the receiving module is also used to receive a response message of the MAC CE, and the response message of the MAC CE is used to indicate that the network device has received the MAC CE; where the receiving module is specifically Used to: receive the trigger message after receiving the MAC CE response message.
  • a sending module configured to send a media intervention control control unit MAC CE, where the MAC CE is used to indicate the beam of the first sending beam between the terminal and the network device Failed, and the second transmission beam is not found
  • the receiving module is also used to receive a response message of the MAC CE, and the response message of the MAC CE is used to indicate that the network device has received the MAC CE; where the receiving module is specifically Used to: receive the trigger message after receiving the MAC CE response message.
  • the device further includes a sending module configured to send a MAC CE, and the MAC CE is used to indicate that the terminal has failed the beam of the first sending beam between the terminal and the network device, and The second transmission beam is not found; wherein, the receiving module is specifically configured to: when the beam of the first transmission beam with the network device fails and the second transmission beam is not found, receive the MAC CE A response message, the MAC CE response message is used to indicate that the network device has received the MAC CE, and the MAC CE response message includes the trigger message.
  • a sending module configured to send a MAC CE
  • the MAC CE is used to indicate that the terminal has failed the beam of the first sending beam between the terminal and the network device, and The second transmission beam is not found
  • the receiving module is specifically configured to: when the beam of the first transmission beam with the network device fails and the second transmission beam is not found, receive the MAC CE A response message, the MAC CE response message is used to indicate that the network device has received the MAC CE, and the MAC CE response message includes the trigger
  • the device further includes a processing module configured to stop detecting the reference signal corresponding to the first transmission beam when the response message of the MAC CE is received.
  • the device further includes a processing module configured to stop sending instruction information to the upper layer when receiving a response message from the MAC CE.
  • the instruction information is used to indicate the first transmission beam The beam failed.
  • the device further includes a processing module configured to stop or not start the timing of the beam failure timer when a response message of the MAC CE is received.
  • the receiving module is also used to communicate with the network device using the second transmitting beam.
  • an apparatus for beam failure recovery includes: a transmitting module, configured to send a transmission to the terminal when the beam of the first transmit beam with the terminal fails and the terminal does not find the second transmit beam
  • the terminal sends a trigger message, where the trigger message is used to trigger the terminal to detect a reference signal, where the second transmission beam is a transmission beam that the network device can communicate with the terminal;
  • the sending module is further configured to send multiple reference signals to the terminal, and the multiple reference signals are used to determine the second transmission beam.
  • the device further includes a receiving module configured to receive a media intervention control unit MAC CE from the terminal, and the MAC CE is used to indicate the first communication between the terminal and the network device.
  • the beam of the transmission beam fails, and the second transmission beam is not found;
  • the sending module is also used to send a response message of the MAC CE to the terminal, and the response message of the MAC CE is used to indicate that the network device receives the MAC CE.
  • the device further includes a receiving module configured to receive a MAC CE from the terminal, and the MAC CE is used to indicate the failure of the first transmission beam between the terminal and the network device , And the second transmission beam is not found; wherein, the sending module is specifically configured to: after receiving the MAC CE, send a response message of the MAC CE to the terminal, and the response message of the MAC CE is used to indicate the network device The MAC CE is received, and the response message of the MAC CE includes the trigger message.
  • the sending module is also used to communicate with the terminal through the second sending beam.
  • a device for beam failure recovery may be a terminal or a chip in the terminal.
  • the device has the function of realizing the above-mentioned first aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the device includes a transceiver module and a processing module, and the transceiver module may include a receiving module and a sending module.
  • the transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter, and the transceiver module may include a radio frequency circuit or an antenna.
  • the processing module may be a processor.
  • the device further includes a storage module, and the storage module may be a memory, for example. When a storage module is included, the storage module is used to store instructions.
  • the processing module is connected to the storage module, and the processing module can execute the instructions stored in the storage module or from other instructions, so that the device executes the above-mentioned first aspect and various possible implementation modes of communication methods.
  • the device can be a terminal.
  • the chip when the device is a chip, the chip includes a transceiver module and a processing module, and the transceiver module may include a receiving module and a sending module.
  • the transceiver module may be an input/output interface, pin or circuit on the chip, for example.
  • the processing module may be a processor, for example.
  • the processing module can execute instructions so that the chip in the terminal executes the above-mentioned first aspect and any possible implemented communication method.
  • the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like.
  • the storage module can also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) etc.
  • ROM read-only memory
  • RAM random access memory
  • the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above All aspects of communication method program execution integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • a device for beam failure recovery may be a network device or a chip in the network device.
  • the device has the function of realizing the above-mentioned second aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the device includes a transceiver module and a processing module, and the transceiver module may include a receiving module and a sending module.
  • the transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter, and the transceiver module may include a radio frequency circuit or an antenna.
  • the processing module may be a processor.
  • the device further includes a storage module, and the storage module may be a memory, for example.
  • the storage module is used to store instructions.
  • the processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or instructions derived from other sources, so that the device executes the above-mentioned second aspect or any one of the methods thereof.
  • the chip when the device is a chip, the chip includes a transceiver module and a processing module, and the transceiver module may include a receiving module and a sending module.
  • the transceiver module may be an input/output interface, pin or circuit on the chip, for example.
  • the processing module may be a processor, for example. The processing module can execute instructions to make the chip in the network device execute the second aspect described above and any possible implementation communication method.
  • the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like.
  • the storage module may also be located in the communication device but outside the chip, such as ROM or other types of static storage devices that can store static information and instructions, RAM, etc.
  • the processor mentioned in any of the above may be a CPU, a microprocessor, an application-specific integrated circuit ASIC, or one or more integrated circuits used to control the execution of the programs of the above-mentioned various aspects of the communication method.
  • a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the above-mentioned first aspect and any possible implementation manners thereof.
  • a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the second aspect and any possible implementations thereof.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the method in the first aspect described above, or any possible implementation manner thereof.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the method in the second aspect described above, or any possible implementation manner thereof.
  • a communication system in an eleventh aspect, includes the device described in the fifth aspect and the device described in the sixth aspect.
  • a communication system in a twelfth aspect, includes the device described in the third aspect and the device described in the fourth aspect.
  • the terminal detects and receives the trigger message sent by the network device. After the terminal receives the trigger message, it can perform beam training again, that is, the terminal can receive multiple reference signals sent from the network device, so that the terminal can determine the second transmission that can communicate with the terminal based on the multiple reference signals. Beam. In other words, the terminal does not need to reconnect to the network device to achieve beam recovery, and the delay of beam recovery is relatively short compared to reconnecting to the network device. That is, the embodiment of the present application can help reduce beam failure recovery. Time delay.
  • Figure 1 is a schematic diagram of a communication system of the present application
  • Figure 2 is a schematic flow chart of beam failure recovery in a traditional scheme
  • FIG. 3 is a schematic flowchart of a method for transmitting a random access preamble according to an embodiment of the present application
  • FIG. 4 is a schematic block diagram of an apparatus for transmitting a random access preamble according to an embodiment of the present application
  • FIG. 5 is a schematic structural diagram of an apparatus for transmitting a random access preamble according to an embodiment of the present application
  • FIG. 6 is a schematic block diagram of an apparatus for transmitting a random access preamble according to another embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of an apparatus for transmitting a random access preamble according to another embodiment of the present application.
  • FIG. 8 is a schematic diagram of an apparatus for transmitting a random access preamble according to another specific embodiment of the present application.
  • FIG. 9 is a schematic diagram of an apparatus for transmitting a random access preamble according to another specific embodiment of the present application.
  • FIG. 10 is a schematic diagram of an apparatus for transmitting a random access preamble according to another specific embodiment of the present application.
  • FIG. 11 is a schematic diagram of an apparatus for transmitting a random access preamble according to another specific embodiment of the present application.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • the terminal in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal device, wireless communication device, user agent, or User device.
  • the terminal can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in the future 5G network or terminals in the future evolved public land mobile network (PLMN), etc. This embodiment of the present application does not limit this.
  • the network equipment in the embodiments of the present application may be equipment used to communicate with terminals.
  • the network equipment may be a global system for mobile communications (GSM) system or code division multiple access (CDMA).
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • the base transceiver station (BTS) can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evoled NodeB) in an LTE system.
  • NodeB base station
  • WCDMA wideband code division multiple access
  • evoled NodeB evolved base station
  • ENB or eNodeB it can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, and the future 5G
  • a baseband unit (BBU), or a distributed unit (DU), etc. are not limited in the embodiment of the present application.
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • the CU implements some of the functions of the gNB, and the DU implements some of the functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing the physical layer protocol and real-time services, and realizes the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , Or, sent by DU+AAU.
  • the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in an access network (radio access network, RAN), and the CU can also be divided into network equipment in a core network (core network, CN), which is not limited in this application.
  • the terminal or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system can be any one or more computer operating systems that implement business processing through processes, for example, Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems, or windows operating systems.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the application do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided in accordance with the embodiments of the application.
  • the execution subject of the method provided in the embodiment of the present application may be a terminal or a network device, or a functional module in the terminal or network device that can call and execute the program.
  • various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques.
  • article of manufacture used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • Fig. 1 is a schematic diagram of a communication system of the present application.
  • the communication system in FIG. 1 may include at least one terminal (for example, the terminal 10, the terminal 20, the terminal 30, the terminal 40, the terminal 50, and the terminal 60) and a network device 70.
  • the network device 70 is used to provide communication services for the terminal and access the core network.
  • the terminal can access the network by searching for synchronization signals, broadcast signals, etc. sent by the network device 70, so as to communicate with the network.
  • the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60 in FIG. 1 can perform uplink and downlink transmissions with the network device 70.
  • the network device 70 may send downlink signals to the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60, and may also receive the uplink signal sent by the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60.
  • the terminal 40, the terminal 50, and the terminal 60 can also be regarded as a communication system, and the terminal 60 can send downlink signals to the terminal 40 and the terminal 50, and can also receive uplink signals sent by the terminal 40 and the terminal 50.
  • embodiments of the present application may be applied to a communication system including one or more network devices, and may also be applied to a communication system including one or more terminals, which is not limited in the present application.
  • a network device can send data or control signaling to one or more terminals. Multiple network devices can also send data or control signaling to one or more terminals at the same time.
  • the embodiment of the beam in the NR protocol can be a spatial domain filter, or a spatial filter or a spatial parameter.
  • the beam used to transmit a signal can be called a transmission beam (Tx beam), can be called a spatial domain transmission filter or a spatial transmission parameter (spatial transmission parameter);
  • the beam used to receive a signal can be called To receive a beam (reception beam, Rx beam), it can be called a spatial domain receive filter or a spatial receive parameter (spatial RX parameter).
  • the transmitting beam may refer to the distribution of signal strength in different directions in space after a signal is transmitted through the antenna
  • the receiving beam may refer to the signal strength distribution of the wireless signal received from the antenna in different directions in space.
  • the beam may be a wide beam, or a narrow beam, or other types of beams.
  • the beam forming technology may be beamforming technology or other technologies.
  • the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology, etc.
  • Beams generally correspond to resources. For example, when performing beam measurement, network equipment uses different resources to measure different beams, and the terminal feeds back the measured resource quality, and the network equipment knows the quality of the corresponding beam. In data transmission, the beam information is also indicated by its corresponding resource. For example, the network device instructs the terminal physical downlink shared channel (PDSCH) beam information through the resources in the transmission configuration indication (transmission configuration indication, TCI) of downlink control information (downlink control information, DCI).
  • TCI transmission configuration indication
  • multiple beams having the same or similar communication characteristics are regarded as one beam.
  • One or more antenna ports can be included in one beam, which are used to transmit data channels, control channels, and sounding signals.
  • One or more antenna ports forming a beam can also be regarded as an antenna port set.
  • each beam of the network device corresponds to a resource, so the resource index can be used to uniquely identify the beam corresponding to the resource.
  • the resource index can be used to uniquely identify the beam corresponding to the resource.
  • the resource can be an uplink signal resource or a downlink signal resource.
  • Uplink signals include but are not limited to sounding reference signal (SRS) and demodulation reference signal (DMRS).
  • Downlink signals include but are not limited to: channel state information reference signal (CSI-RS), cell specific reference signal (CS-RS), UE specific reference signal (user equipment specific reference signal, US-RS), demodulation reference signal (demodulation reference signal, DMRS), and synchronization signal/physical broadcast channel block (synchronization system/physical broadcast channel block, SS/PBCH block).
  • the SS/PBCH block may be referred to as a synchronization signal block (synchronization signal block, SSB) for short.
  • a resource is a data structure, including its corresponding uplink/downlink signal related parameters, such as the type of uplink/downlink signal, the resource element that carries the uplink/downlink signal, the transmission time and period of the uplink/downlink signal , The number of ports used to send uplink/downlink signals, etc.
  • Each uplink/downlink signal resource has a unique index to identify the downlink signal resource. It is understandable that the index of the resource may also be referred to as the identifier of the resource, which is not limited in the embodiment of the present application.
  • the co-location relationship is used to indicate that multiple resources have one or more identical or similar communication features.
  • multiple resources with a co-location relationship the same or similar communication configuration can be adopted.
  • Large-scale characteristics can include: delay spread, average delay, Doppler spread, Doppler shift, average gain, receiving parameters, terminal receiving beam number, transmitting/receiving channel correlation, receiving angle of arrival, receiver antenna space Correlation, main angle of arrival (Angel-of-Arrival, AoA), average angle of arrival, expansion of AoA, etc.
  • the parameters of quasi co-location include at least one of Doppler spread, Doppler frequency shift, average delay, delay spread and spatial reception parameters.
  • the QCL relationship can be divided into four categories:'QCL-TypeA': ⁇ Doppler frequency shift, Doppler spread, average delay, delay spread ⁇ ;'QCL-TypeB': ⁇ Doppler frequency shift, multiple Puller extension ⁇ ;'QCL-TypeC': ⁇ Doppler frequency shift, average delay ⁇ ; -'QCL-TypeD': ⁇ space domain receiving parameter ⁇ .
  • Carrier aggregation can aggregate two or more component carriers (component carriers, CC) together to achieve a larger transmission bandwidth and effectively increase the uplink and downlink transmission rates.
  • CA can support in-band continuous carrier aggregation, in-band discontinuous carrier aggregation, or inter-band discontinuous carrier aggregation.
  • the component carrier may also be referred to as a carrier component (CC).
  • Bandwidth part It can be understood as a continuous frequency band.
  • the frequency band includes at least one continuous subband.
  • Each bandwidth part can correspond to a set of system parameters (numerology), including, for example, but not limited to, subbands.
  • Carrier interval cyclic prefix (CP) length, transmission time interval (TTI), number of symbols (Symbol), resource block (RB) location, time slot length, frame format, etc.
  • CP cyclic prefix
  • TTI transmission time interval
  • Symbol number of symbols
  • RB resource block
  • Different bandwidth parts can correspond to different system parameters.
  • the cell and carrier components can be replaced equivalently, because in the communication protocol, a CC is usually regarded as an independent cell. CC, bandwidth part, CC/BWP, CC and/or BWP can also be replaced equivalently, because they can all be used to describe one end of frequency domain resources.
  • Primary cell Working on the primary frequency band, the terminal equipment is using the primary cell to perform initial connection or re-establish the connection.
  • Secondary cell group For terminal devices configured with dual connectivity, a subset of serving cells that includes primary and secondary cells (primary SCG cells) and other secondary cells.
  • Primary and secondary cells For dual connectivity operations, primary and secondary cells refer to the cells that send random access when the terminal device performs synchronous reconfiguration.
  • the special cell refers to the primary cell of a master cell group (master cell group, MCG) or the primary and secondary cells of a secondary cell group; otherwise, the special cell is the primary cell.
  • Secondary cell If the terminal device is configured with the CA function, it is a cell that provides additional radio resources outside of the special cell.
  • Serving cell For terminal equipment in the RRC_CONNECTED state, if CA/double connection (DC) is not configured, there is only one serving cell, that is, the primary cell; if CA/DC is configured, the serving cell Including the combination of special cells and all auxiliary cells.
  • DC CA/double connection
  • Fig. 2 shows a schematic flowchart of a method for beam failure recovery of a secondary cell.
  • the terminal performs beam failure detection.
  • the terminal performs beam failure detection based on the secondary cell. Specifically, the terminal monitors the beam failure detection reference signal (BFD RS), and every certain period, if the link quality is judged to be lower than the threshold, a beam failure instance is recorded and sent by the physical layer of the terminal An indication to the higher layer of the terminal, such as the terminal link layer.
  • the upper layer of the terminal starts a beam failure timer and increments the beam failure counter by 1. If the upper layer of the terminal exceeds the maximum value of the beam counter count before the beam failure timer expires, it declares a beam failure.
  • the period here may be called the beam failure instance indication period. It is related to the period of BFD RS. For example, the period is equal to the larger of 2 milliseconds and the smallest of multiple BFD RS periods.
  • the BFD RS includes an RS corresponding to a beam of a physical downlink control channel (PDCCH), or an RS corresponding to a beam of a control resource set (CORESET).
  • PDCCH physical downlink control channel
  • CORESET control resource set
  • the terminal searches for a new available beam.
  • the network device may configure a candidate beam set (candidate beam RS) for the terminal in advance.
  • the terminal may select candidate beams that meet the condition from the candidate beam set (for example, the beam quality is higher than a given candidate beam quality threshold).
  • the terminal may not find an available beam.
  • step 201 and step 302 may not be limited.
  • the terminal can also search for a new available beam without failing the current beam.
  • the quality can be measured and maintained all the time, and the measurement does not need to wait until the beam fails.
  • the terminal sends a beam failure recovery request (BFRQ) to the network device.
  • BFRQ beam failure recovery request
  • the terminal if the terminal does not find a new available beam, the terminal sends a scheduling request (scheduling request, SR) to the network device to request the network device for uplink transmission resources. Since this is an SR specially configured as the BFRQ function, the base station can know that the terminal has a beam failure after receiving this SR. Therefore, the SR may also be called SR-based BFRQ, PUCCH-based BFRQ, or link recovery request (LRR).
  • SR scheduling request
  • PUCCH-based BFRQ PUCCH-based BFRQ
  • LRR link recovery request
  • the SR can be sent in the primary cell.
  • the network device schedules uplink transmission resources for the terminal.
  • the network equipment has learned that the terminal has a beam failure, but it does not yet know which cell of the terminal has the beam failure, nor does it know which beams are newly available. Therefore, the network device needs to schedule uplink transmission resources for the terminal, for example, physical uplink shared channel (PUSCH) transmission resources.
  • PUSCH physical uplink shared channel
  • the terminal can send to the network device the specific cell where the beam fails and whether a new available beam is found through the uplink transmission resources.
  • the network device can schedule uplink resources for the terminal through DCI.
  • the DCI includes a hybrid automatic repeat request (HARQ) process number field, a new data transmission indicator (NDI) field, and may also include time resources and frequency resources that can be used for PUSCH transmission. And it can also include the antenna port of the PUSCH, modulation and coding methods, etc.
  • HARQ hybrid automatic repeat request
  • NDI new data transmission indicator
  • the terminal sends an uplink media access control control element (MAC CE) to the network device through the PUSCH to notify the network device of the cell information of the beam failure and the information of the newly available beam.
  • MAC CE uplink media access control control element
  • the new available beam information may indicate that no new available beam is found.
  • the terminal sending the MAC CE may be performed in the primary cell.
  • the terminal may not perform steps 303 and 304 above. That is, the terminal directly uses the uplink transmission resource to send the MAC CE to the network device.
  • the network device sends a response message of the MAC CE to the terminal, and the response message of the MAC CE is used to confirm that the network device correctly receives the MAC CE.
  • the response message of the MAC CE may be an independent message, or it may reuse the existing DCI, that is, the DCI may also have the function of the response message of the MAC CE.
  • the HARQ process ID included in the DCI is the same as the HARQ process ID of the DCI in step 204, but the new data indicator (NDI) field is flipped (that is, different).
  • the DCI of this structure can also be used to indicate that the network device successfully receives the PUSCH.
  • the terminal receives beam related information sent from the network device.
  • the network device may also reconfigure beam information for the terminal.
  • the network device uses the new available beam to send the physical downlink control channel by default. PDCCH), or the terminal sends the uplink control channel (physical uplink control channel, PUCCH) by default using the new available sending beam of the network device and the corresponding sending beam corresponding to the receiving beam of the terminal.
  • PDCCH physical downlink control channel
  • PUCCH physical uplink control channel
  • the terminal cannot communicate with the network device.
  • the terminal does not find a new usable beam in step 302, and before step 307, the terminal cannot communicate with the network device on the secondary cell. Therefore, when the current communication beam between the terminal and the network device fails and no new beam is found, how the terminal communicates with the network device needs to be solved urgently.
  • FIG. 3 shows a schematic flowchart of a method for beam failure recovery according to an embodiment of the present application.
  • the terminal receives a trigger message when the beam of the first transmission beam between the network device and the network device fails and the second transmission beam is not found, and the second transmission beam is a transmission beam that the network device can communicate with the terminal. .
  • the network device sends the trigger message.
  • the network device may use the first transmission beam to communicate with the terminal.
  • the beam failure of the first transmission beam between the terminal and the network device can be understood as the terminal detecting the reference signal sent by the network device using the first transmission beam. If the quality of the reference signal is lower than the preset threshold, the terminal considers the first transmission beam A beam of the transmission beam fails. If the first transmission beam of the communication between the terminal and the network device fails and the second transmission beam is not found in the first transmission beam set, the terminal detects and receives the trigger message sent by the network device. Wherein, the second transmission beam is one or more transmission beams that the network device can use to communicate with the terminal. The trigger message can be used to trigger the terminal to perform beam selection again.
  • the first transmission beam set includes one or more transmission beams of the network device.
  • the first transmission beam set may be directly configured by the network device, may also be indirectly configured, or may be agreed upon by a protocol.
  • the network device may directly configure a beam list, and the beam list includes one or more transmission beams of the network device.
  • the network device indirectly configures the first transmission beam set.
  • the terminal automatically configures the synchronization signal/physical broadcast channel (physical broadcast channel, SSB) of the cell and/or the periodically transmitted channel state indication reference signal (channel state information).
  • the reference signal (CSI-RS) corresponding to the transmission beam is used as the transmission beam in the first beam set.
  • the "beam” in the embodiment of the present application can be understood as a “reference signal”, or that the "beam” and the “reference signal” have a mapping relationship.
  • the "beam list” can be a “reference signal list (candidate beam RS SCell list)", and each reference signal in the list can be an SSB or a CSI-RS.
  • the "beam set” corresponds to the "reference signal set” (for example, the candidate beam set in step 202).
  • the first transmission beam may also belong to a beam list.
  • the network device may directly configure the beam list to which the first transmission beam belongs, and the beam list includes one or more transmission beams of the network device.
  • the network device may also indirectly configure the beam set to which the first transmit beam belongs.
  • the terminal may determine multiple transmit beams having a QCL relationship as the beam set to which the first transmit beam belongs. More specifically, the terminal automatically detects reference signals of type QCL typeD in the PDCCH CORESET TCI state, and determines multiple reference signals of QCL typeD as the beam set to which the first transmission beam belongs.
  • the first transmission beam may be in the first transmission beam set or not in the first transmission beam set, which is not limited in the embodiment of the present application.
  • the operation of the terminal may be the same as 201-204.
  • the terminal may also send capability information to the network device.
  • the capability information is used to indicate the maximum number of secondary cells that the terminal supports the beam failure recovery function (that is, the BFR process), or the maximum number of secondary cells supported by the terminal for new
  • the number of reference signals may be for one cell or for all cells, which is not limited in this application.
  • the terminal may be the first transmission beam between the secondary cell and the network device, and the beam of the first transmission beam failed, and the second transmission beam is not found; or in step 301, the terminal may also be connected to the network on the primary cell. The first transmission beam between the devices failed, and the second transmission beam was not found.
  • the following embodiments take the secondary cell as an example for description, but the application is not limited to this.
  • the failure of the first transmission beam between the terminal and the network device on the secondary cell may be the failure of one of the transmission beams between the terminal on the secondary cell and the network device, or the failure of the terminal on the secondary cell and the network device. All transmission beams between devices failed. That is, a certain transmission beam that the network device communicates with the terminal on the secondary cell may be referred to as the first transmission beam. In other words, if all the transmission beams of the network equipment and the terminal communication on the secondary cell fail, it is considered that the communication beams of the network equipment and the terminal on the secondary cell have failed. In this case, the first transmission beam failure refers to all the transmission beams. The beam failed. For the convenience of description, the following embodiments use the first transmission beam as any transmission beam for communication between the network device and the terminal, but this application does not limit this.
  • the terminal may send a MAC CE to the network device, and the MAC CE is used to indicate After the failure of the first transmission beam between the terminal and the network device, the second transmission beam is not found.
  • the network device After receiving the MAC CE, the network device sends a response message of the MAC CE to the terminal.
  • the response message of the MAC CE is used to indicate that the network device has received the MAC CE.
  • step 301 may specifically be that the terminal receives the trigger message after receiving the response message of the MAC CE.
  • the terminal sends a MAC CE to the network device, and the MAC CE indicates that the current beam of the first transmission beam fails, and the terminal does not find a new available beam (that is, the second transmission beam).
  • the network device feeds back the response message of the MAC CE to the terminal (for example, the response message of the MAC CE is an acknowledgement message (acknowledgement, ACK)).
  • the terminal receives the trigger message sent by the network device.
  • the trigger message can be sent separately, which improves the flexibility of sending the trigger message.
  • the HARQ process ID included in the DCI is the same as the HARQ process ID of the DCI scheduling the MAC CE transmission (that is, the DCI in step 204), but is new
  • the data indicator (new data indicator, NDI) field is flipped.
  • the terminal can reuse the existing DCI format for scheduling PUSCH transmission, such as the existing DCI format 0_0, DCI format 0_1, DCI format 0_2, etc. [quote existing standard TS 38.211 v16.0.0].
  • the DCI format 0_1 includes at least the following fields, and the functions of the fields are as follows:
  • the DCI format used as the response message of the MAC CE is the same as the DCI scheduled for transmission of the MAC CE.
  • the trigger message may be a DCI message
  • the format of the DCI message may be the same as the DCI format of step 206 in the embodiment shown in FIG. 2 (for example, the DCI format is 0_1), or may be different. There is no restriction on this.
  • receiving the trigger message may specifically be that the terminal receives the trigger message within a preset time period threshold.
  • the terminal after receiving the MAC CE response message, if the terminal receives the trigger message within the preset time period threshold, it performs subsequent operations according to the trigger message; if the terminal receives the trigger message beyond the preset time period threshold , It can be considered that the secondary cell has failed, and the trigger message is invalid, that is, the subsequent operation indicated by the trigger message is not performed.
  • the starting time of the preset time period threshold may be the time when the terminal receives the response message of the MAC CE.
  • the length of the preset time period threshold may be a time length related to the length of the beam failure recovery timer (configured by high-level signaling beamfailurerecoverytimer), such as 10 milliseconds, 20 milliseconds, 40 milliseconds, 80 milliseconds, 200 milliseconds, and so on.
  • step 301 the terminal sends a MAC CE to the network device.
  • step 301 may specifically be that the terminal receives the response message of the MAC CE and the response message of the MAC CE when the beam of the first transmission beam between the terminal and the network device fails and the second transmission beam is not found. Include the trigger message.
  • the response message of the MAC CE may carry the trigger message.
  • the trigger message can reuse the relevant fields in the MAC CE response message, such as the CSI-request field in DCI format 0_1 or DCI format 0_2, thereby reducing the time waiting for a trigger message and speeding up finding new ones that are available The time of the beam.
  • the terminal when it receives the MAC CE response message in the above two examples, it may stop detecting the reference signal corresponding to the first transmission beam. For example, the terminal stops detecting the PDCCH corresponding to the first transmission beam in the secondary cell. Or the terminal stops detecting the originally configured BFD RS or the originally configured QCL typed RS in the PDCCH CORESET TCI state in the secondary cell.
  • the terminal performs beam recovery by using a new beam for communication. Therefore, when the terminal receives the MAC CE response message and determines that the beam of the first transmission beam fails, it can stop detecting the reference signal corresponding to the first transmission beam, avoiding the continuous detection of the reference signal corresponding to the first transmission beam. The power consumption is wasted, that is, the embodiment of the present application saves the power consumption of the terminal.
  • the terminal may start a beam failure prohibit timer (BFD prohibit timer), and the terminal may not perform beam failure detection within the effective time.
  • BFD prohibit timer beam failure prohibit timer
  • the terminal when it receives the MAC CE response message in the above two examples, it may stop sending indication information to the upper layer, where the indication information is used to indicate that the beam of the first transmission beam fails.
  • the terminal when the terminal detects the beam failure of the first transmission beam, it repeatedly sends indication information to the upper layer, that is, continuously informs the first transmission beam of the beam failure, so that the upper layer continuously initiates MAC CE transmission. .
  • the terminal since the terminal has successfully fed back the beam failure information to the network device, there is no need to perform beam failure detection for the first transmission beam, thereby saving the terminal's power. Consumption overhead.
  • the terminal when it receives the MAC CE response message in the above two examples, it may stop or not start the timing of the beam failure timer.
  • the terminal in the embodiment of the present application may not stop the timing of the beam failure timer or not start the timing of the beam failure timer. In this way, the terminal can wait for beam recovery without performing follow-up operations after beam failure, for example, the terminal reconnects to the network device, which saves the power consumption of the terminal.
  • the terminal when the terminal receives the MAC CE response message in the above two examples, it may not stop the timing of the beam failure recovery timer.
  • the terminal may not stop the timing of the beam failure recovery timer, which helps the terminal record the duration of beam failure recovery and helps improve the performance of subsequent operations of the terminal.
  • the terminal receives multiple reference signals from the network device according to the trigger message, where the multiple reference signals are used to determine the second transmission beam.
  • the network device and the terminal may pre-arrange or agree on the format of the trigger message.
  • the terminal can perform beam training again.
  • the terminal may adjust the current state to the state of receiving the reference signal.
  • the terminal may receive multiple reference signals sent from the network device, where the reference signal and the transmission beam may have an association relationship or a mapping relationship, so that the terminal can determine a second transmission beam capable of communicating with the terminal according to the multiple reference signals.
  • the terminal does not need to reconnect to the network device to achieve beam recovery, and the delay of beam recovery is relatively short compared to reconnecting to the network device. That is, the embodiment of the present application can help reduce beam failure recovery. Time delay.
  • the trigger message in the agreed format may be the DCI in the agreed format.
  • the length of the CSI-request in DCI format 0_1 or DCI format 0_2 is N bits, and the value of N depends on the configuration and/or activation of the network equipment through high-level signaling such as RRC signaling and/or MAC CE signaling.
  • the number of periodic CSI trigger states (CSI-AperiodicTriggerState).
  • Each aperiodic CSI trigger state is associated with one or more report settings (ReportConfig), and each report setting corresponds to one or more resource settings (ResourceConfig).
  • Each resource set includes a resource set list (ResourceSetList), where the resource set list includes one or more resource sets.
  • Each resource collection includes one or more resources.
  • the resource can be a CSI-RS resource or an SSB resource.
  • the network equipment can trigger the terminal to detect the L1-reference signal received power (RSRP) or L1-signal to interference plus noise ratio (SINR) of SSB and/or CSI-RS in the secondary cell. ) (one candidate solution is that gNB could trigger aperiodic L1-RSRP measurement and report for the failed SCell).
  • the network device can indicate a specific aperiodic CSI trigger state to the terminal through the trigger message (the CSI request field in the DCI), and the reported amount in the associated report setting is L1-RSRP.
  • the multiple reference signals may correspond to multiple transmission beams of the network device one-to-one, or one reference signal may correspond to multiple transmission beams, or multiple reference signals correspond to one transmission beam. This application does not deal with this. limited.
  • the transmission beam set may also be referred to as a "reference signal set”.
  • the multiple reference signals correspond to transmission beams in a second transmission beam set, and the transmission beams included in the second transmission beam set may be partially or completely different from the transmission beams in the first transmission beam set.
  • the network device may configure a new available transmission beam set for the terminal by sending the beam set. If the terminal does not find the second transmission beam in the first transmission beam set, the network device may also configure the second transmission beam set for the terminal. Since there are beams that are not included in the first transmission beam set in the second transmission beam set, the terminal may find the second transmission beam from the second transmission beam set.
  • the terminal may determine the second transmission beam according to received signal powers of multiple reference signals.
  • the terminal may determine a transmission beam corresponding to a reference signal greater than a preset received signal power threshold as the second transmission beam. If there are multiple reference signals greater than the preset received signal power threshold, the transmission beam corresponding to the reference signal with the maximum received signal power is determined as the second transmission beam.
  • the terminal may directly determine the transmission beam with the highest received signal power as the second transmission beam.
  • the terminal sends a measurement report to the network device, where the measurement report is used to indicate the information of the second transmission beam.
  • the network device uses the second transmitting beam to communicate with the terminal.
  • the network device can immediately use the second transmission beam to communicate with the terminal, or first confirm to the terminal that the measurement report has been received correctly, and then communicate with the terminal through the second transmission beam. Communication, this application does not limit this.
  • the terminal can immediately use the transceiver beam of the terminal corresponding to the second transmission beam to communicate with the network device, or it can pass the second transmission beam after the network device confirms to the terminal that the measurement report has been correctly received.
  • the transmitting and receiving beams of the terminal corresponding to the transmitting beam communicate with the network device, which is not limited in this application.
  • the network device communicates with the terminal through the second transmit beam, specifically, the network device uses the second transmit beam to transmit PDCCH, PDSCH, CSI-RS to the terminal, or the network device uses the receive beam corresponding to the second transmit beam to receive from the terminal.
  • PUCCH, PUSCH, SRS, PRACH this application does not limit this.
  • the terminal uses the transceiver beam of the terminal corresponding to the second transmit beam to communicate with the network device, specifically, the terminal may use the receive beam of the terminal corresponding to the second transmit beam to receive PDCCH, PDSCH, CSI-RS, or the terminal uses the second transmit beam
  • the transmission beam of the corresponding terminal transmits PUCCH, PUSCH, SRS, PRACH, etc.
  • the receiving beam of the terminal corresponding to the second sending beam, and the sending beam corresponding to the receiving beam of the terminal can be understood as the sending beam of the terminal corresponding to the second sending beam.
  • the terminal can use the terminal receiving and sending beam corresponding to the second sending beam to communicate with the network. During this period of time, the terminal must complete the triggered beam measurement and report. Therefore, the required time length is at least Z3, which is the terminal CSI processing time required by the protocol. This time length is related to the terminal capabilities and/or subcarrier spacing, for example, 44 symbols, 96 symbols, 336 symbols, etc.
  • this time length needs to be increased, for example, Z3+T, where T is processed by the base station
  • T is processed by the base station
  • the capability is related to the subcarrier spacing.
  • T can be 28 symbols or 56 symbols.
  • the terminal if the terminal does not find a new available beam, the terminal will receive a section after the DCI with the same DCI as the DCI scheduled for the MAC CE transmission but with the new data indicator (NDI) field flipped. After a period of time (the length of this period is 28 symbols and the maximum value of Z3, where Z3 is the terminal CSI calculation time specified in TS 38.214), the terminal uses the beam reported by the most recent L1-RSRP when receiving the PDCCH in the SCell.
  • NDI new data indicator
  • the UE receives PDCCH on the least one SCell with same antenna port quad-collocation parameters as the first port of the corresponding RS associated with the corresponding index triggered by the same PDCCH.
  • the terminal may stop the timing of the beam failure recovery timer, and consider that the beam failure recovery is successful.
  • the terminal may stop the beam failure prohibition detection timer.
  • the methods and operations implemented by the terminal can also be implemented by components (such as chips or circuits) that can be used in the terminal, and the methods and operations implemented by the network device can also be implemented by the terminal.
  • the components (such as chips or circuits) of network equipment are implemented.
  • each network element such as a transmitting end device or a receiving end device, includes hardware structures and/or software modules corresponding to each function in order to realize the above-mentioned functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application can divide the transmitting end device or the receiving end device into functional modules according to the foregoing method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. middle.
  • the above-mentioned integrated modules can be implemented either in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of using the corresponding functional modules to divide each functional module.
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • FIG. 4 shows a schematic block diagram of an apparatus 4800 for beam failure recovery according to an embodiment of the present application.
  • the device 400 may correspond to each terminal or chip in the terminal shown in FIG. 1, and the terminal or chip in the terminal in the embodiment shown in FIG. Any function of the terminal.
  • the device 400 includes a processing module 410 and a transceiver module 420.
  • the transceiver module 420 may specifically include a receiving module and a sending module.
  • the processing module 410 is configured to receive a trigger message through the transceiver module 420 when the beam of the first transmission beam with the network device fails and the second transmission beam is not found, and the second transmission beam is the network The transmission beam that the device can communicate with the terminal;
  • the processing module 410 is further configured to receive multiple reference signals from the network device through the transceiver module 420 according to the trigger message, and the multiple reference signals are used to determine the second transmission beam.
  • the transceiver module 420 is further configured to send a media intervention control control unit MAC CE, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device fails, and the second transmission beam is not found. Transmit beam; the transceiver module 420 is also used to receive the MAC CE response message, the MAC CE response message is used to indicate that the network device receives the MAC CE; wherein, the processing module 410 is specifically used to: After the MAC CE response message, the trigger message is received through the transceiver module 420.
  • MAC CE media intervention control control unit
  • the transceiver module 420 is further configured to send a MAC CE, where the MAC CE is used to indicate that the terminal has failed the beam of the first transmission beam between the terminal and the network device, and the second transmission beam is not found;
  • the processing module 410 is specifically configured to receive the MAC CE response message through the transceiver module 420 when the beam of the first transmission beam with the network device fails and the second transmission beam is not found.
  • the response message of the MAC CE is used to indicate that the network device has received the MAC CE, and the response message of the MAC CE includes the trigger message.
  • the processing module 410 is further configured to stop detecting the reference signal corresponding to the first transmission beam when the response message of the MAC CE is received.
  • the processing module 410 is further configured to stop sending indication information to the upper layer when the response message of the MAC CE is received, and the indication information is used to indicate that the beam of the first transmission beam fails.
  • the processing module 410 is further configured to stop or not start the timing of the beam failure timer when the response message of the MAC CE is received.
  • the transceiver module 420 is further configured to communicate with the network device that uses the second transmitting beam.
  • the terminal detects and receives the trigger message sent by the network device. After the terminal receives the trigger message, it can perform beam training again, that is, the terminal can receive multiple reference signals sent from the network device, so that the terminal can determine the second transmission that can communicate with the terminal based on the multiple reference signals. Beam. In other words, the terminal does not need to reconnect to the network device to achieve beam recovery, and the delay of beam recovery is relatively short compared to reconnecting to the network device. That is, the embodiment of the present application can help reduce beam failure recovery. Time delay.
  • transceiver module 420 and processing module 410 For a more detailed description of the foregoing transceiver module 420 and processing module 410, reference may be made to the relevant description in the foregoing method embodiment, which is not described herein again.
  • FIG. 5 shows a communication device 500 provided by an embodiment of the present application, and the device 500 may be the terminal described in FIG. 3.
  • the device can adopt the hardware architecture shown in FIG. 5.
  • the device may include a processor 510 and a transceiver 530.
  • the device may also include a memory 540.
  • the processor 510, the transceiver 530, and the memory 540 communicate with each other through an internal connection path.
  • the related functions implemented by the processing module 410 in FIG. 4 may be implemented by the processor 510, and the related functions implemented by the transceiver module 420 may be implemented by the processor 510 controlling the transceiver 530.
  • the processor 510 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application.
  • a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control communication devices (such as base stations, terminals, or chips), execute software programs, and process data in the software programs.
  • the processor 510 may include one or more processors, for example, include one or more central processing units (central processing unit, CPU).
  • CPU central processing unit
  • the CPU may be a single processor.
  • the core CPU can also be a multi-core CPU.
  • the transceiver 530 is used to send and receive data and/or signals, and to receive data and/or signals.
  • the transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.
  • the memory 540 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read only memory, EPROM), and read-only memory.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable read only memory
  • read-only memory erasable read only memory
  • a compact disc read-only memory, CD-ROM
  • the memory 540 is used to store related instructions and data.
  • the memory 540 is used to store program codes and data of the terminal, and may be a separate device or integrated in the processor 510.
  • the processor 510 is configured to control the transceiver to perform information transmission with the terminal.
  • the processor 510 is configured to control the transceiver to perform information transmission with the terminal.
  • the transceiver to perform information transmission with the terminal.
  • the apparatus 500 may further include an output device and an input device.
  • the output device communicates with the processor 510 and can display information in a variety of ways.
  • the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc.
  • the input device communicates with the processor 510 and can receive user input in a variety of ways.
  • the input device can be a mouse, a keyboard, a touch screen device, or a sensor device.
  • FIG. 5 only shows a simplified design of the communication device.
  • the device may also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals that can implement this application are within the protection scope of this application. within.
  • the device 500 may be a chip, for example, a communication chip that can be used in a terminal to implement related functions of the processor 510 in the terminal.
  • the chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions.
  • the chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.
  • the embodiment of the present application also provides a device, which may be a terminal or a circuit.
  • the device can be used to perform the actions performed by the terminal in the foregoing method embodiments.
  • FIG. 6 shows a schematic block diagram of an apparatus 600 for transmitting a random access preamble according to an embodiment of the present application.
  • the apparatus 600 may correspond to the network device or the chip in the network device shown in FIG. 1, or the network device or the chip in the network device in the embodiment shown in FIG. Any function.
  • the device 600 includes a processing module 610 and a transceiver module 620.
  • the processing module 610 is configured to send a trigger message to the terminal through the transceiver module when the beam of the first transmission beam with the terminal fails and the terminal does not find the second transmission beam, and the trigger message is used to trigger
  • the terminal detects the reference signal, where the second transmission beam is a transmission beam that the network device can communicate with the terminal;
  • the transceiver module 620 is further configured to send multiple reference signals to the terminal, and the multiple reference signals are used to determine the second transmission beam.
  • the transceiver module 620 is further configured to receive a media intervention control control unit MAC CE from the terminal, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device has failed, and is not The second transmission beam is found; the transceiver module 620 is further configured to send a response message of the MAC CE to the terminal, and the response message of the MAC CE is used to indicate that the network device receives the MAC CE.
  • a media intervention control control unit MAC CE from the terminal, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device has failed, and is not The second transmission beam is found
  • the transceiver module 620 is further configured to send a response message of the MAC CE to the terminal, and the response message of the MAC CE is used to indicate that the network device receives the MAC CE.
  • the transceiver module 620 is further configured to receive a MAC CE from the terminal, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device fails, and the second transmission is not found Beam; wherein, the processing module 610 is specifically configured to: after receiving the MAC CE, send the MAC CE response message to the terminal through the transceiver module 620, and the MAC CE response message is used to indicate that the network device receives The MAC CE, and the response message of the MAC CE includes the trigger message.
  • the processing module 610 is further configured to stop detecting the reference signal corresponding to the first transmission beam when the response message of the MAC CE is received.
  • the processing module 610 is further configured to stop sending indication information to the upper layer when the response message of the MAC CE is received, and the indication information is used to indicate that the beam of the first transmission beam fails.
  • the processing module 610 is further configured to stop or not start the timing of the beam failure timer when the response message of the MAC CE is received.
  • the transceiver module 620 is further configured to communicate with the network device using the second transmitting beam.
  • the terminal detects and receives the trigger message sent by the network device, so that the terminal After receiving the trigger message, beam training is performed again. For example, the terminal may adjust the current state to the state of receiving the reference signal.
  • the terminal may receive multiple reference signals sent from the network device, where the reference signal and the transmission beam may have an association relationship or a mapping relationship, so that the terminal can determine a second transmission beam capable of communicating with the terminal according to the multiple reference signals.
  • the terminal does not need to reconnect to the network device to achieve beam recovery, and the delay of beam recovery is relatively short compared to reconnecting to the network device. That is, the embodiment of the present application can help reduce beam failure recovery. Time delay.
  • transceiver module 610 and processing module 620, reference may be made to the relevant description in the foregoing method embodiment, which is not described here.
  • FIG. 7 shows a communication device 700 provided by an embodiment of the present application.
  • the device 700 may be the network device described in FIG. 3.
  • the device can adopt the hardware architecture shown in FIG. 7.
  • the device may include a processor 710 and a transceiver 720.
  • the device may also include a memory 730.
  • the processor 710, the transceiver 720, and the memory 730 communicate with each other through an internal connection path.
  • the related functions implemented by the processing module 610 in FIG. 6 may be implemented by the processor 710, and the related functions implemented by the transceiver module 620 may be implemented by the processor 710 controlling the transceiver 720.
  • the processor 710 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application.
  • a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control communication devices (such as base stations, terminals, or chips), execute software programs, and process data in the software programs.
  • the processor 710 may include one or more processors, for example, include one or more central processing units (central processing unit, CPU).
  • CPU central processing unit
  • the CPU may be a single processor.
  • the core CPU can also be a multi-core CPU.
  • the transceiver 720 is used to send and receive data and/or signals, and to receive data and/or signals.
  • the transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.
  • the memory 730 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read only memory, EPROM), and read-only memory.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable read only memory
  • read-only memory erasable read only memory
  • CD-ROM compact disc
  • the memory 730 is used to store program codes and data of the network device, and may be a separate device or integrated in the processor 710.
  • the processor 710 is configured to control the transceiver to perform information transmission with the terminal.
  • the processor 710 is configured to control the transceiver to perform information transmission with the terminal.
  • the apparatus 700 may further include an output device and an input device.
  • the output device communicates with the processor 710 and can display information in a variety of ways.
  • the output device can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc.
  • the input device communicates with the processor 710 and can receive user input in a variety of ways.
  • the input device can be a mouse, a keyboard, a touch screen device, or a sensor device.
  • FIG. 7 only shows a simplified design of the communication device.
  • the device may also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all network devices that can implement this application are protected by this application. Within range.
  • the apparatus 700 may be a chip, for example, a communication chip that can be used in a network device, and is used to implement related functions of the processor 710 in the network device.
  • the chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions.
  • the chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.
  • the embodiment of the present application also provides a device, which may be a network device or a circuit.
  • the device can be used to perform the actions performed by the network device in the foregoing method embodiments.
  • FIG. 8 shows a simplified schematic diagram of the structure of the terminal. It is easy to understand and easy to illustrate.
  • the terminal uses a mobile phone as an example.
  • the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the terminal, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminals may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • only one memory and processor are shown in FIG. 8. In actual end products, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with the transceiver function may be regarded as the transceiver unit of the terminal, and the processor with the processing function may be regarded as the processing unit of the terminal.
  • the terminal includes a transceiver unit 810 and a processing unit 820.
  • the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, and so on.
  • the processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiving unit 810 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiving unit 810 can be regarded as the sending unit, that is, the transceiving unit 810 includes a receiving unit and a sending unit.
  • the transceiver unit may sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • transceiving unit 810 is configured to perform the sending and receiving operations on the terminal side in the foregoing method embodiment
  • processing unit 820 is configured to perform other operations on the terminal in addition to the transceiving operation in the foregoing method embodiment.
  • the processing unit 820 is configured to execute the processing steps on the terminal side in FIG. 3.
  • the transceiving unit 810 is configured to perform the transceiving operations in steps 301 and 302 in FIG. 3, and/or the transceiving unit 810 is further configured to perform other transceiving steps on the terminal side in the embodiment of the present application.
  • the chip When the device is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip.
  • the device shown in FIG. 9 can also be referred to.
  • the device can perform functions similar to the processor 510 in FIG. 5.
  • the device includes a processor 901, a data sending processor 903, and a data receiving processor 905.
  • the processing module 410 in the embodiment shown in FIG. 4 may be the processor 901 in FIG. 9 and completes corresponding functions.
  • the transceiving module 420 in the embodiment shown in FIG. 4 may be the sending data processor 903 and the receiving data processor 905 in FIG. 9.
  • the channel encoder and the channel decoder are shown in FIG. 9, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are merely illustrative.
  • the processing device 1000 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem.
  • the communication device in this embodiment can be used as the modulation subsystem therein.
  • the modulation subsystem may include a processor 1003 and an interface 1004.
  • the processor 1003 completes the function of the aforementioned processing module 410
  • the interface 1004 completes the function of the aforementioned transceiver module 420.
  • the modulation subsystem includes a memory 1006, a processor 1003, and a program stored in the memory and running on the processor, and the processor implements the method described in the embodiment when the program is executed.
  • the memory 1006 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1000, as long as the memory 1006 can be connected to the The processor 1003 is fine.
  • the network device may be as shown in FIG. 11, for example, the device 110 is a base station.
  • the base station can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiment.
  • the base station 110 may include one or more DU 1101 and one or more CU 1102. CU1102 can communicate with the next-generation core network (NG core, NC).
  • the DU 1101 may include at least one antenna 11011, at least one radio frequency unit 11011, at least one processor 11013, and at least one memory 11014.
  • the DU 1101 part is mainly used for the transmission and reception of radio frequency signals, the conversion of radio frequency signals and baseband signals, and part of baseband processing.
  • the CU1102 may include at least one processor 11022 and at least one memory 11021.
  • CU1102 and DU1101 can communicate through interfaces, where the control plane interface can be Fs-C, such as F1-C, and the user plane interface can be Fs-U, such as F1-U.
  • the control plane interface can be Fs-C, such as F1-C
  • the user plane interface can be Fs-U, such as F1-U.
  • the CU 1102 part is mainly used to perform baseband processing, control the base station, and so on.
  • the DU 1101 and the CU1102 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the CU 1102 is the control center of the base station, which may also be referred to as a processing unit, and is mainly used to complete the baseband processing function.
  • the CU 1102 may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the baseband processing on the CU and DU can be divided according to the protocol layer of the wireless network, for example, the packet data convergence protocol (PDCP) layer and the functions of the above protocol layers are set in the CU, the protocol layer below PDCP, For example, functions such as the radio link control (RLC) layer and the medium access control (MAC) layer are set in the DU.
  • CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions
  • DU implements radio link control (radio link control, RLC), MAC and physical functions.
  • the function of the (physical, PHY) layer is the packet data convergence protocol (PDCP) layer and the functions of the above protocol layers are set in the CU, the protocol layer below PDCP.
  • functions such as the radio link control (RLC) layer and the medium access control (MAC) layer are set in the DU.
  • RRC radio resource control
  • packet data convergence protocol packet data convergence protocol
  • MAC medium access control
  • the base station 110 may include one or more radio frequency units (RU), one or more DUs, and one or more CUs.
  • the DU may include at least one processor 11013 and at least one memory 11014
  • the RU may include at least one antenna 11011 and at least one radio frequency unit 11011
  • the CU may include at least one processor 11022 and at least one memory 11021.
  • the processor 11013 is configured to execute the processing steps on the network device side in FIG. 3.
  • the radio frequency unit 11011 is used to perform the receiving and sending operations in steps 301 and 302 in FIG. 3.
  • the CU1102 may be composed of one or more single boards, and multiple single boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or may respectively support wireless access networks of different access standards.
  • Access network such as LTE network, 5G network or other network.
  • the memory 11021 and the processor 11022 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the DU1101 can be composed of one or more single boards.
  • Multiple single boards can jointly support a wireless access network with a single access indication (such as a 5G network), and can also support wireless access networks with different access standards (such as a 5G network).
  • the memory 11014 and the processor 11013 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • the steps of the foregoing method embodiments may be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • Programming logic devices discrete gates or transistor logic devices, discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed 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, registers.
  • 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 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 (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • 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 link dynamic random access memory synchronous link DRAM, SLDRAM
  • direct memory bus random access memory direct rambus RAM, DR RAM
  • At least one refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • the following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • one embodiment or “an embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Therefore, the appearances of "in one embodiment” or “in an embodiment” in various places throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application. The implementation process constitutes any limitation.
  • component used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
  • the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and/or a computer running on a processor.
  • the application running on the computing device and the computing device can be components.
  • One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed among two or more computers.
  • these components can be executed from various computer readable media having various data structures stored thereon.
  • the component can be based on, for example, a signal having one or more data packets (e.g. data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through a signal) Communicate through local and/or remote processes.
  • a signal having one or more data packets (e.g. data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through a signal) Communicate through local and/or remote processes.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology 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 disks or optical disks and other media that can store program codes. .

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Abstract

The present application provides a beam failure recovery method and apparatus. If a first transmission beam used for communication between a terminal and a network device has failed and a second transmission beam has not been located yet, the terminal detects and receives a trigger message sent by the network device. The terminal, after receiving the trigger message, performs beam training again, that is, the terminal receives a plurality of reference signals sent by the network device, such that the terminal can determine, according to the plurality of reference signals, the second transmission beam that enables communication with the terminal. In this way, the terminal can achieve beam recovery without having to reconnect to the network device, thus reducing beam recovery delays for beam recovery in comparison with when the terminal reconnects to the network device. Embodiments of the present application can reduce delays in beam failure recovery.

Description

波束失败恢复的方法和装置Method and device for beam failure recovery 技术领域Technical field
本申请涉及通信领域，更具体地，涉及一种波束失败恢复的方法和装置。This application relates to the field of communications, and more specifically, to a method and device for beam failure recovery.
背景技术Background technique
在高频通信***中，为了克服路损，网络设备和终端通常都会使用具有方向性的高增益的天线阵列形成模拟波束来进行通信。一般来说，模拟波束是具有方向性的，可以用主瓣方向和波束宽度(例如，3dB)来描述一个模拟波束形状(beam pattern)，波束宽度越窄，天线增益越大。网络设备和终端可以朝向特定的方向发送和接收。以下行通信为例，网络设备朝向特定方向发送，终端设备朝向特定方向接收，只有当发送和接收的方向对齐的情况下，才能实现正常通信。为了实现波束对齐(即发送端的发送波束与接收端的接收波束对齐)，需要进行波束训练。In high-frequency communication systems, in order to overcome path loss, network equipment and terminals usually use directional high-gain antenna arrays to form analog beams for communication. Generally speaking, analog beams are directional. The main lobe direction and beam width (for example, 3dB) can be used to describe an analog beam pattern. The narrower the beam width, the greater the antenna gain. Network devices and terminals can send and receive in specific directions. Take the following communication as an example. The network device sends in a specific direction, and the terminal device receives in a specific direction. Normal communication can only be realized when the sending and receiving directions are aligned. In order to achieve beam alignment (that is, alignment of the transmit beam at the transmitting end and the receive beam at the receiving end), beam training is required.
传统方案中，下行波束训练是通过网络设备发送一个或多个参考信号，终端对网络设备发送的参考信号进行测量，并将测量结果上报来实现的。下行波束训练可以完成波束选择，波束质量测量和上报，波束跟踪等功能。在波束被阻挡时的情况下，原有波束质量下降，不再适用于通信，需要切换到新的波束进行通信。这一过程可以称为波束失败恢复(beam failure recovery,BFR)流程，或者链路恢复流程(link recovery procedures)。In the traditional solution, downlink beam training is achieved by sending one or more reference signals through the network device, and the terminal measures the reference signals sent by the network device and reporting the measurement results. Downlink beam training can complete beam selection, beam quality measurement and reporting, beam tracking and other functions. When the beam is blocked, the quality of the original beam is degraded and is no longer suitable for communication, and it is necessary to switch to a new beam for communication. This process can be called beam failure recovery (BFR) process, or link recovery process (link recovery procedures).
传统方案中，终端当前与网络设备之间的通信波束失败的情况下，若没有找到新的波束，则终端无法与网络设备进行通信。因此，终端在当前与网络设备之间的通信波束失败，且没有找到新的波束的情况下，终端如何快速的与网络设备进行通信亟待解决。In the traditional solution, when the current communication beam between the terminal and the network device fails, if a new beam is not found, the terminal cannot communicate with the network device. Therefore, when the current communication beam between the terminal and the network device fails and no new beam is found, how the terminal can quickly communicate with the network device needs to be solved urgently.
发明内容Summary of the invention
本申请提供一种波束失败恢复的方法和装置，终端在当前与网络设备之间的通信波束失败，且没有找到新的波束的情况下，能够实现快速的与网络设备之间的通信，即减少了波束失败恢复的时延。The present application provides a method and device for beam failure recovery. When the current communication beam between the terminal and the network device fails and no new beam is found, the terminal can achieve rapid communication with the network device, that is, reduce The time delay of beam failure recovery.
第一方面，提供了一种波束失败恢复的方法，该方法包括：终端在与网络设备之间的第一发送波束的波束失败，且未发现第二发送波束的情况下，接收触发消息，该第二发送波束为该网络设备能够与该终端通信的发送波束；该终端根据该触发消息，接收来自该网络设备的多个参考信号，该多个参考信号用于确定该第二发送波束。In a first aspect, a method for beam failure recovery is provided. The method includes: receiving a trigger message when a terminal fails in a beam of a first transmission beam with a network device and does not find a second transmission beam, and The second transmission beam is a transmission beam that the network device can communicate with the terminal; the terminal receives multiple reference signals from the network device according to the trigger message, and the multiple reference signals are used to determine the second transmission beam.
该第一发送波束为网络设备的发送波束。若终端与网络设备之间通信的第一发送波束失败，且没有找到第二发送波束的情况下，则终端检测并接收网络设备发送的触发消息。该终端在接收到该触发消息之后，可以重新进行波束训练。例如，终端可以将当前状态调整为接收参考信号的状态。终端可以接收到来自网络设备发送的多个参考信号，其中，参考信号和发送波束可以具有关联关系或映射关系，这样终端可以根据该多个参考信号确定能够与终端进行通信的第二发送波束。也就是说，终端不需要通过重新接入网络设备就可 以实现波束恢复，且相对于重新接入网络设备的波束恢复的时延较短，即本申请实施例可以有助于减少波束失败恢复的时延。The first transmission beam is the transmission beam of the network device. If the first transmission beam of the communication between the terminal and the network device fails and the second transmission beam is not found, the terminal detects and receives the trigger message sent by the network device. After receiving the trigger message, the terminal can perform beam training again. For example, the terminal may adjust the current state to the state of receiving the reference signal. The terminal may receive multiple reference signals sent from the network device, where the reference signal and the transmission beam may have an association relationship or a mapping relationship, so that the terminal can determine a second transmission beam capable of communicating with the terminal according to the multiple reference signals. In other words, the terminal does not need to reconnect to the network device to achieve beam recovery, and the delay of beam recovery is relatively short compared to reconnecting to the network device. That is, the embodiment of the present application can help reduce beam failure recovery. Time delay.
在一些可能的实现方式中，该方法还包括：终端在第一发送波束集合中未发现第二发送波束的情况下，从第二发送波束集合中选择该第二发送波束，其中，该多个参考信号对应该第二发送波束集合中的发送波束，该第二发送波束集合包括的发送波束可以与第一发送波束集合中的发送波束部分或全部不同。In some possible implementation manners, the method further includes: when the terminal does not find the second transmission beam in the first transmission beam set, selecting the second transmission beam from the second transmission beam set, wherein the multiple The reference signal corresponds to the transmission beams in the second transmission beam set, and the transmission beams included in the second transmission beam set may be partially or completely different from the transmission beams in the first transmission beam set.
网络设备可以发送波束集合为终端配置新可用发送波束集合，若终端没有在第一发送波束集合找到第二发送波束，则网络设备还可以为终端配置第二发送波束集合。由于第二发送波束集合存在第一发送波束集合不包括的波束，这样终端可能从第二发送波束集合中找到该第二发送波束，从而使得终端能够实现波束失败恢复，提高了波束失败恢复的成功率。The network device may configure a new available transmission beam set for the terminal by sending a beam set. If the terminal does not find a second transmission beam in the first transmission beam set, the network device may also configure a second transmission beam set for the terminal. Since the second transmit beam set has beams that are not included in the first transmit beam set, the terminal may find the second transmit beam from the second transmit beam set, so that the terminal can achieve beam failure recovery and improve the success of beam failure recovery Rate.
在一些可能的实现方式中，该方法还包括：该终端发送媒体介入控制控制单元MAC CE，该MAC CE用于指示该终端与该网络设备之间的第一发送波束的波束失败，且未发现该第二发送波束；该终端接收该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到该MAC CE；其中，该终端在与网络设备之间的第一发送波束的波束失败，且未发现第二发送波束的情况下，接收触发消息包括：该终端在接收到该MAC CE的响应消息之后，接收该触发消息。In some possible implementations, the method further includes: the terminal sends a media intervention control control unit MAC CE, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device has failed and is not found The second transmission beam; the terminal receives the MAC CE response message, the MAC CE response message is used to indicate that the network device has received the MAC CE; where the terminal is in the first transmission beam between the network device In the case that the beam fails and the second transmission beam is not found, receiving the trigger message includes: the terminal receives the trigger message after receiving the response message of the MAC CE.
该触发消息可以是网络设备单独发送的，这样提高了网络设备发送触发消息的灵活性。The trigger message may be sent by the network device separately, which improves the flexibility of the network device to send the trigger message.
在一些可能的实现方式中，该方法还包括：该终端发送MAC CE，该MAC CE用于指示该终端在与该网络设备之间的该第一发送波束的波束失败，且未发现该第二发送波束；其中，该终端在与网络设备之间的该第一发送波束的波束失败，且未发现该第二发送波束的情况下，接收触发消息包括：该终端在与网络设备之间的该第一发送波束的波束失败，且未发现该第二发送波束的情况下，接收该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到该MAC CE，且该MAC CE的响应消息包括该触发消息。In some possible implementations, the method further includes: the terminal sends a MAC CE, where the MAC CE is used to indicate that the terminal has failed in the beam of the first transmission beam with the network device, and the second transmission beam is not found. Transmission beam; wherein, in the case that the first transmission beam between the terminal and the network device fails, and the second transmission beam is not found, the receiving trigger message includes: the terminal is between the network device and the network device. If the beam of the first transmission beam fails and the second transmission beam is not found, the MAC CE response message is received. The MAC CE response message is used to indicate that the network device has received the MAC CE, and the MAC CE The response message includes the trigger message.
该MAC CE的响应消息可以携带该触发消息，这样减少了终端等待触发消息的时间，即加速了终端找到新的可用波束。也就是说，本申请实施例能够更进一步减少波束失败恢复的时延。The response message of the MAC CE may carry the trigger message, which reduces the time for the terminal to wait for the trigger message, that is, accelerates the terminal to find a new available beam. In other words, the embodiments of the present application can further reduce the time delay of beam failure recovery.
在一些可能的实现方式中，该方法还包括：该终端在接收到该MAC CE的响应消息时，停止检测对应于该第一发送波束的参考信号。In some possible implementation manners, the method further includes: when the terminal receives the response message of the MAC CE, stopping detecting the reference signal corresponding to the first transmission beam.
当终端接收到MAC CE的响应消息时，确定第一发送波束的波束失败，则可以停止检测对应于第一发送波束的参考信号，避免了不断检测第一发送波束对应的参考信号造成的功耗浪费，即本申请实施例节省了终端的功耗开销。When the terminal receives the MAC CE response message and determines that the beam of the first transmission beam fails, it can stop detecting the reference signal corresponding to the first transmission beam, avoiding the power consumption caused by continuously detecting the reference signal corresponding to the first transmission beam Waste, that is, the embodiment of the present application saves the power consumption of the terminal.
在一些可能的实现方式中，该方法还包括：该终端在接收到该MAC CE的响应消息时，停止向上层发送指示信息，该指示信息用于指示该第一发送波束的波束失败。In some possible implementation manners, the method further includes: when receiving the MAC CE response message, the terminal stops sending indication information to the upper layer, where the indication information is used to indicate that the beam of the first transmission beam fails.
由于终端已经成功的向网络设备反馈了波束失败的信息，因此没有必要进行执行针对该第一发送波束再进行波束失败的检测了，从而节省了终端的功耗开销。Since the terminal has successfully fed back the beam failure information to the network device, there is no need to perform beam failure detection for the first transmission beam, thereby saving the power consumption of the terminal.
在一些可能的实现方式中，该方法还包括：该终端在接收到该MAC CE的响应消息 时，停止或不启动波束失败计时器的计时。In some possible implementation manners, the method further includes: when the terminal receives the MAC CE response message, stopping or not starting the beam failure timer.
终端可以不停止波束失败计时器的计时，或者不启动波束失败计时器的计时。这样终端可以等待波束恢复，而不需要进行波束失败的后续操作，例如终端重新接入网络设备，节省了终端的功耗开销。The terminal may not stop the timing of the beam failure timer or not start the timing of the beam failure timer. In this way, the terminal can wait for beam recovery without performing follow-up operations after beam failure, for example, the terminal reconnects to the network device, which saves the power consumption of the terminal.
在一些可能的实现方式中，该方法还包括：该终端与采用该第二发送波束的该网络设备进行通信。In some possible implementation manners, the method further includes: the terminal communicates with the network device using the second transmission beam.
网络设备可以采用第二发送波束与终端进行通信，即实现了快速恢复波束失败，减少了波束失败恢复的时延。The network device can use the second transmitting beam to communicate with the terminal, which realizes rapid recovery of beam failure and reduces the time delay of beam failure recovery.
第二方面，提供了一种波束失败恢复的方法，该方法包括：网络设备在与终端之间的第一发送波束的波束失败，且该终端未发现第二发送波束的情况下，向该终端发送触发消息，该触发消息用于触发该终端检测参考信号，其中，该第二发送波束为该网络设备能够与该终端通信的发送波束；该网络设备向该终端发送多个参考信号，该多个参考信号用于确定该第二发送波束。In a second aspect, a method for beam failure recovery is provided. The method includes: when the first transmission beam between the network device and the terminal fails, and the terminal does not find the second transmission beam, the terminal Send a trigger message, the trigger message is used to trigger the terminal to detect a reference signal, where the second transmission beam is a transmission beam that the network device can communicate with the terminal; the network device sends multiple reference signals to the terminal, and the multiple A reference signal is used to determine the second transmission beam.
若终端与网络设备之间通信的第一发送波束失败，且没有找到第二发送波束的情况下，则终端检测并接收网络设备发送的触发消息，以使得该终端在接收到该触发消息之后，重新进行波束训练。例如，终端可以将当前状态调整为接收参考信号的状态。终端可以接收到来自网络设备发送的多个参考信号，其中，参考信号和发送波束可以具有关联关系或映射关系，这样终端可以根据该多个参考信号确定能够与终端进行通信的第二发送波束。也就是说，终端不需要通过重新接入网络设备就可以实现波束恢复，且相对于重新接入网络设备的波束恢复的时延较短，即本申请实施例可以有助于减少波束失败恢复的时延。If the first transmission beam of the communication between the terminal and the network device fails and the second transmission beam is not found, the terminal detects and receives the trigger message sent by the network device, so that the terminal, after receiving the trigger message, Perform beam training again. For example, the terminal may adjust the current state to the state of receiving the reference signal. The terminal may receive multiple reference signals sent from the network device, where the reference signal and the transmission beam may have an association relationship or a mapping relationship, so that the terminal can determine a second transmission beam capable of communicating with the terminal according to the multiple reference signals. In other words, the terminal does not need to reconnect to the network device to achieve beam recovery, and the delay of beam recovery is relatively short compared to reconnecting to the network device. That is, the embodiment of the present application can help reduce beam failure recovery. Time delay.
在一些可能的实现方式中，在该网络设备向该终端发送触发消息之前，该方法还包括：该网络设备接收来自该终端的媒体介入控制控制单元MAC CE，该MAC CE用于指示该终端与该网络设备之间的第一发送波束的波束失败，且未发现该第二发送波束；该网络设备向该终端发送该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到该MAC CE。In some possible implementations, before the network device sends the trigger message to the terminal, the method further includes: the network device receives a media intervention control unit MAC CE from the terminal, and the MAC CE is used to instruct the terminal to communicate with the terminal. The beam of the first transmission beam between the network devices failed, and the second transmission beam was not found; the network device sends the MAC CE response message to the terminal, and the MAC CE response message is used to instruct the network device to receive To the MAC CE.
该触发消息可以单独发送，提高了发送触发消息的灵活性。The trigger message can be sent separately, which improves the flexibility of sending the trigger message.
在一些可能的实现方式中，该方法还包括：该网络设备接收来自该终端的MAC CE，该MAC CE用于指示该终端与该网络设备之间的第一发送波束的波束失败，且未发现该第二发送波束；其中，该网络设备在与终端之间的第一发送波束的波束失败，且该终端未发现第二发送波束的情况下，向该终端发送触发消息包括：该网络设备在接收到该MAC CE之后，向该终端发送该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到该MAC CE，且该MAC CE的响应消息包括该触发消息。In some possible implementations, the method further includes: the network device receives a MAC CE from the terminal, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device has failed and is not found The second transmission beam; wherein, in the case that the first transmission beam between the network device and the terminal fails, and the terminal does not find the second transmission beam, sending a trigger message to the terminal includes: the network device is After receiving the MAC CE, send a response message of the MAC CE to the terminal. The response message of the MAC CE is used to indicate that the network device has received the MAC CE, and the response message of the MAC CE includes the trigger message.
网络设备可以通过该MAC CE的响应消息携带该触发消息，这样减少了终端等待触发消息的时间，加速了终端找到新的可用波束的时间。The network device can carry the trigger message through the response message of the MAC CE, which reduces the time for the terminal to wait for the trigger message and speeds up the time for the terminal to find a new available beam.
在一些可能的实现方式中，该方法还包括：该网络设备通过该第二发送波束与该终端进行通信。In some possible implementation manners, the method further includes: the network device communicates with the terminal through the second transmission beam.
网络设备可以采用第二发送波束与终端进行通信，即实现了快速恢复波束失败，减少了波束失败恢复的时延。The network device can use the second transmitting beam to communicate with the terminal, which realizes rapid recovery of beam failure and reduces the time delay of beam failure recovery.
第三方面，提供了波束失败恢复的装置，该装置包括：接收模块，用于在与网络设备 之间的第一发送波束的波束失败，且未发现第二发送波束的情况下，接收触发消息，该第二发送波束为该网络设备能够与终端通信的发送波束；In a third aspect, an apparatus for beam failure recovery is provided. The apparatus includes: a receiving module for receiving a trigger message when the beam of the first transmit beam with the network device fails and the second transmit beam is not found , The second transmission beam is a transmission beam that the network device can communicate with the terminal;
该接收模块，还用于根据该触发消息，接收来自该网络设备的多个参考信号，该多个参考信号用于确定该第二发送波束。The receiving module is further configured to receive multiple reference signals from the network device according to the trigger message, and the multiple reference signals are used to determine the second transmission beam.
在一些可能的实现方式中，该装置还包括发送模块，该发送模块用于发送媒体介入控制控制单元MAC CE，该MAC CE用于指示该终端与该网络设备之间的第一发送波束的波束失败，且未发现该第二发送波束；该接收模块，还用于接收该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到该MAC CE；其中，该接收模块具体用于：在接收到该MAC CE的响应消息之后，接收该触发消息。In some possible implementations, the device further includes a sending module configured to send a media intervention control control unit MAC CE, where the MAC CE is used to indicate the beam of the first sending beam between the terminal and the network device Failed, and the second transmission beam is not found; the receiving module is also used to receive a response message of the MAC CE, and the response message of the MAC CE is used to indicate that the network device has received the MAC CE; where the receiving module is specifically Used to: receive the trigger message after receiving the MAC CE response message.
在一些可能的实现方式中，该装置还包括发送模块，该发送模块用于发送MAC CE，该MAC CE用于指示该终端在与该网络设备之间的该第一发送波束的波束失败，且未发现该第二发送波束；其中，该接收模块具体用于：在与网络设备之间的该第一发送波束的波束失败，且未发现该第二发送波束的情况下，接收该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到该MAC CE，且该MAC CE的响应消息包括该触发消息。In some possible implementation manners, the device further includes a sending module configured to send a MAC CE, and the MAC CE is used to indicate that the terminal has failed the beam of the first sending beam between the terminal and the network device, and The second transmission beam is not found; wherein, the receiving module is specifically configured to: when the beam of the first transmission beam with the network device fails and the second transmission beam is not found, receive the MAC CE A response message, the MAC CE response message is used to indicate that the network device has received the MAC CE, and the MAC CE response message includes the trigger message.
在一些可能的实现方式中，该装置还包括处理模块，该处理模块用于在接收到该MAC CE的响应消息时，停止检测对应于该第一发送波束的参考信号。In some possible implementation manners, the device further includes a processing module configured to stop detecting the reference signal corresponding to the first transmission beam when the response message of the MAC CE is received.
在一些可能的实现方式中，该装置还包括处理模块，该处理模块用于在接收到该MAC CE的响应消息时，停止向上层发送指示信息，该指示信息用于指示该第一发送波束的波束失败。In some possible implementations, the device further includes a processing module configured to stop sending instruction information to the upper layer when receiving a response message from the MAC CE. The instruction information is used to indicate the first transmission beam The beam failed.
在一些可能的实现方式中，该装置还包括处理模块，该处理模块用于在接收到该MAC CE的响应消息时，停止或不启动波束失败计时器的计时。In some possible implementation manners, the device further includes a processing module configured to stop or not start the timing of the beam failure timer when a response message of the MAC CE is received.
在一些可能的实现方式中，该接收模块，还用于与采用该第二发送波束的该网络设备进行通信。In some possible implementation manners, the receiving module is also used to communicate with the network device using the second transmitting beam.
第四方面，提供了波束失败恢复的装置，该装置包括：发送模块，用于在与终端之间的第一发送波束的波束失败，且该终端未发现第二发送波束的情况下，向该终端发送触发消息，该触发消息用于触发该终端检测参考信号，其中，该第二发送波束为网络设备能够与该终端通信的发送波束；In a fourth aspect, an apparatus for beam failure recovery is provided. The apparatus includes: a transmitting module, configured to send a transmission to the terminal when the beam of the first transmit beam with the terminal fails and the terminal does not find the second transmit beam The terminal sends a trigger message, where the trigger message is used to trigger the terminal to detect a reference signal, where the second transmission beam is a transmission beam that the network device can communicate with the terminal;
该发送模块，还用于向该终端发送多个参考信号，该多个参考信号用于确定该第二发送波束。The sending module is further configured to send multiple reference signals to the terminal, and the multiple reference signals are used to determine the second transmission beam.
在一些可能的实现方式中，该装置还包括接收模块，该接收模块用于接收来自该终端的媒体介入控制控制单元MAC CE，该MAC CE用于指示该终端与该网络设备之间的第一发送波束的波束失败，且未发现该第二发送波束；In some possible implementations, the device further includes a receiving module configured to receive a media intervention control unit MAC CE from the terminal, and the MAC CE is used to indicate the first communication between the terminal and the network device. The beam of the transmission beam fails, and the second transmission beam is not found;
该发送模块，还用于向该终端发送该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到该MAC CE。The sending module is also used to send a response message of the MAC CE to the terminal, and the response message of the MAC CE is used to indicate that the network device receives the MAC CE.
在一些可能的实现方式中，该装置还包括接收模块，该接收模块用于接收来自该终端的MAC CE，该MAC CE用于指示该终端与该网络设备之间的第一发送波束的波束失败，且未发现该第二发送波束；其中，该发送模块具体用于：在接收到该MAC CE之后，向该终端发送该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到 该MAC CE，且该MAC CE的响应消息包括该触发消息。In some possible implementations, the device further includes a receiving module configured to receive a MAC CE from the terminal, and the MAC CE is used to indicate the failure of the first transmission beam between the terminal and the network device , And the second transmission beam is not found; wherein, the sending module is specifically configured to: after receiving the MAC CE, send a response message of the MAC CE to the terminal, and the response message of the MAC CE is used to indicate the network device The MAC CE is received, and the response message of the MAC CE includes the trigger message.
在一些可能的实现方式中，该发送模块，还用于通过该第二发送波束与该终端进行通信。In some possible implementation manners, the sending module is also used to communicate with the terminal through the second sending beam.
第五方面，提供了一种波束失败恢复的装置，该装置可以是终端，也可以是终端内的芯片。该装置具有实现上述第一方面，及各种可能的实现方式的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。In a fifth aspect, a device for beam failure recovery is provided. The device may be a terminal or a chip in the terminal. The device has the function of realizing the above-mentioned first aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions.
在一种可能的设计中，该装置包括：收发模块和处理模块，该收发模块可以包括接收模块和发送模块。所述收发模块例如可以是收发器、接收器、发射器中的至少一种，该收发模块可以包括射频电路或天线。该处理模块可以是处理器。可选地，所述装置还包括存储模块，该存储模块例如可以是存储器。当包括存储模块时，该存储模块用于存储指令。该处理模块与该存储模块连接，该处理模块可以执行该存储模块存储的指令或源自其他的指令，以使该装置执行上述第一方面，及各种可能的实现方式的通信方法。在本设计中，该装置可以为终端。In a possible design, the device includes a transceiver module and a processing module, and the transceiver module may include a receiving module and a sending module. The transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter, and the transceiver module may include a radio frequency circuit or an antenna. The processing module may be a processor. Optionally, the device further includes a storage module, and the storage module may be a memory, for example. When a storage module is included, the storage module is used to store instructions. The processing module is connected to the storage module, and the processing module can execute the instructions stored in the storage module or from other instructions, so that the device executes the above-mentioned first aspect and various possible implementation modes of communication methods. In this design, the device can be a terminal.
在另一种可能的设计中，当该装置为芯片时，该芯片包括：收发模块和处理模块，该收发模块可以包括接收模块和发送模块。收发模块例如可以是该芯片上的输入/输出接口、管脚或电路等。处理模块例如可以是处理器。该处理模块可执行指令，以使该终端内的芯片执行上述第一方面，以及任意可能的实现的通信方法。可选地，该处理模块可以执行存储模块中的指令，该存储模块可以为芯片内的存储模块，如寄存器、缓存等。该存储模块还可以是位于通信设备内，但位于芯片外部，如只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。In another possible design, when the device is a chip, the chip includes a transceiver module and a processing module, and the transceiver module may include a receiving module and a sending module. The transceiver module may be an input/output interface, pin or circuit on the chip, for example. The processing module may be a processor, for example. The processing module can execute instructions so that the chip in the terminal executes the above-mentioned first aspect and any possible implemented communication method. Optionally, the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like. The storage module can also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) etc.
其中，上述任一处提到的处理器，可以是一个通用中央处理器(CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制上述各方面通信方法的程序执行的集成电路。Among them, the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above All aspects of communication method program execution integrated circuit.
第六方面，提供了一种波束失败恢复的装置，该装置可以是网络设备，也可以是网络设备内的芯片。该装置具有实现上述第二方面，及各种可能的实现方式的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。In a sixth aspect, a device for beam failure recovery is provided. The device may be a network device or a chip in the network device. The device has the function of realizing the above-mentioned second aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions.
在一种可能的设计中，该装置包括：收发模块和处理模块，该收发模块可以包括接收模块和发送模块。所述收发模块例如可以是收发器、接收器、发射器中的至少一种，该收发模块可以包括射频电路或天线。该处理模块可以是处理器。In a possible design, the device includes a transceiver module and a processing module, and the transceiver module may include a receiving module and a sending module. The transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter, and the transceiver module may include a radio frequency circuit or an antenna. The processing module may be a processor.
可选地，所述装置还包括存储模块，该存储模块例如可以是存储器。当包括存储模块时，该存储模块用于存储指令。该处理模块与该存储模块连接，该处理模块可以执行该存储模块存储的指令或源自其他的指令，以使该装置执行上述第二方面，或其任意一项的方法。Optionally, the device further includes a storage module, and the storage module may be a memory, for example. When a storage module is included, the storage module is used to store instructions. The processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or instructions derived from other sources, so that the device executes the above-mentioned second aspect or any one of the methods thereof.
在另一种可能的设计中，当该装置为芯片时，该芯片包括：收发模块和处理模块，该收发模块可以包括接收模块和发送模块。所述收发模块例如可以是该芯片上的输入/输出接口、管脚或电路等。处理模块例如可以是处理器。该处理模块可执行指令，以使该网络 设备内的芯片执行上述第二方面，以及任意可能的实现的通信方法。In another possible design, when the device is a chip, the chip includes a transceiver module and a processing module, and the transceiver module may include a receiving module and a sending module. The transceiver module may be an input/output interface, pin or circuit on the chip, for example. The processing module may be a processor, for example. The processing module can execute instructions to make the chip in the network device execute the second aspect described above and any possible implementation communication method.
可选地，该处理模块可以执行存储模块中的指令，该存储模块可以为芯片内的存储模块，如寄存器、缓存等。该存储模块还可以是位于通信设备内，但位于芯片外部，如ROM或可存储静态信息和指令的其他类型的静态存储设备，RAM等。Optionally, the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like. The storage module may also be located in the communication device but outside the chip, such as ROM or other types of static storage devices that can store static information and instructions, RAM, etc.
其中，上述任一处提到的处理器，可以是一个CPU，微处理器，特定应用集成电路ASIC，或一个或多个用于控制上述各方面通信方法的程序执行的集成电路。Wherein, the processor mentioned in any of the above may be a CPU, a microprocessor, an application-specific integrated circuit ASIC, or one or more integrated circuits used to control the execution of the programs of the above-mentioned various aspects of the communication method.
第七方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示执行上述第一方面，及其任意可能的实现方式中的方法的指令。In a seventh aspect, a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the above-mentioned first aspect and any possible implementation manners thereof.
第八方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示执行上述第二方面，及其任意可能的实现方式中的方法的指令。In an eighth aspect, a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the second aspect and any possible implementations thereof.
第九方面，提供了一种包含指令的计算机程序产品，其在计算机上运行时，使得计算机执行上述第一方面，或其任意可能的实现方式中的方法。In a ninth aspect, a computer program product containing instructions is provided, which when running on a computer, causes the computer to execute the method in the first aspect described above, or any possible implementation manner thereof.
第十方面，提供了一种包含指令的计算机程序产品，其在计算机上运行时，使得计算机执行上述第二方面，或其任意可能的实现方式中的方法。In a tenth aspect, a computer program product containing instructions is provided, which when running on a computer, causes the computer to execute the method in the second aspect described above, or any possible implementation manner thereof.
第十一方面，提供了一种通信***，该通信***包括上述第五方面所述的装置和上述第六方面所述的装置。In an eleventh aspect, a communication system is provided. The communication system includes the device described in the fifth aspect and the device described in the sixth aspect.
第十二方面，提供了一种通信***，该通信***包括上述第三方面所述的装置和上述第四方面所述的装置。In a twelfth aspect, a communication system is provided. The communication system includes the device described in the third aspect and the device described in the fourth aspect.
基于上述技术方案，若终端与网络设备之间通信的第一发送波束失败，且没有找到第二发送波束的情况下，则终端检测并接收网络设备发送的触发消息。该终端在接收到该触发消息之后，可以重新进行波束训练，即终端可以接收到来自网络设备发送的多个参考信号，这样终端可以根据该多个参考信号确定能够与终端进行通信的第二发送波束。也就是说，终端不需要通过重新接入网络设备就可以实现波束恢复，且相对于重新接入网络设备的波束恢复的时延较短，即本申请实施例可以有助于减少波束失败恢复的时延。Based on the above technical solution, if the first transmission beam of the communication between the terminal and the network device fails and the second transmission beam is not found, the terminal detects and receives the trigger message sent by the network device. After the terminal receives the trigger message, it can perform beam training again, that is, the terminal can receive multiple reference signals sent from the network device, so that the terminal can determine the second transmission that can communicate with the terminal based on the multiple reference signals. Beam. In other words, the terminal does not need to reconnect to the network device to achieve beam recovery, and the delay of beam recovery is relatively short compared to reconnecting to the network device. That is, the embodiment of the present application can help reduce beam failure recovery. Time delay.
附图说明Description of the drawings
图1是本申请一个通信***的示意图；Figure 1 is a schematic diagram of a communication system of the present application;
图2是传统方案中波束失败恢复的示意性流程图；Figure 2 is a schematic flow chart of beam failure recovery in a traditional scheme;
图3是本申请一个实施例的传输随机接入前导的方法的示意性流程图；FIG. 3 is a schematic flowchart of a method for transmitting a random access preamble according to an embodiment of the present application;
图4是本申请一个实施例的传输随机接入前导的装置的示意性框图；FIG. 4 is a schematic block diagram of an apparatus for transmitting a random access preamble according to an embodiment of the present application;
图5是本申请一个实施例的传输随机接入前导的装置的示意性结构图；FIG. 5 is a schematic structural diagram of an apparatus for transmitting a random access preamble according to an embodiment of the present application;
图6是本申请另一个实施例的传输随机接入前导的装置的示意性框图；FIG. 6 is a schematic block diagram of an apparatus for transmitting a random access preamble according to another embodiment of the present application;
图7是本申请另一个实施例的传输随机接入前导的装置的示意性结构图；FIG. 7 is a schematic structural diagram of an apparatus for transmitting a random access preamble according to another embodiment of the present application;
图8是本申请另一个具体实施例的传输随机接入前导的装置的示意图；FIG. 8 is a schematic diagram of an apparatus for transmitting a random access preamble according to another specific embodiment of the present application;
图9是本申请另一个具体实施例的传输随机接入前导的装置的示意图；FIG. 9 is a schematic diagram of an apparatus for transmitting a random access preamble according to another specific embodiment of the present application;
图10是本申请另一个具体实施例的传输随机接入前导的装置的示意图；FIG. 10 is a schematic diagram of an apparatus for transmitting a random access preamble according to another specific embodiment of the present application;
图11是本申请另一个具体实施例的传输随机接入前导的装置的示意图。FIG. 11 is a schematic diagram of an apparatus for transmitting a random access preamble according to another specific embodiment of the present application.
具体实施方式Detailed ways
下面将结合附图，对本申请中的技术方案进行描述。The technical solution in this application will be described below in conjunction with the accompanying drawings.
本申请实施例的技术方案可以应用于各种通信***，例如：全球移动通信(global system for mobile communications，GSM)***、码分多址(code division multiple access，CDMA)***、宽带码分多址(wideband code division multiple access，WCDMA)***、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)***、LTE频分双工(frequency division duplex，FDD)***、LTE时分双工(time division duplex，TDD)、通用移动通信***(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信***、未来的第五代(5th generation，5G)***或新无线(new radio，NR)等。The technical solutions of the embodiments of this application can be applied to various communication systems, such as: global system for mobile communications (GSM) system, 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, LTE frequency division duplex (FDD) system, LTE Time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, the future fifth generation (5th generation, 5G) system or new radio (NR), etc.
本申请实施例中的终端可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端设备、无线通信设备、用户代理或用户装置。终端还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端等，本申请实施例对此并不限定。The terminal in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal device, wireless communication device, user agent, or User device. The terminal can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in the future 5G network or terminals in the future evolved public land mobile network (PLMN), etc. This embodiment of the present application does not limit this.
本申请实施例中的网络设备可以是用于与终端通信的设备，该网络设备可以是全球移动通信(global system for mobile communications，GSM)***或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)***中的基站(NodeB，NB)，还可以是LTE***中的演进型基站(evoled NodeB，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备，5G***中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(baseband unit，BBU)，或，分布式单元(distributed unit，DU)等，本申请实施例并不限定。The network equipment in the embodiments of the present application may be equipment used to communicate with terminals. The network equipment may be a global system for mobile communications (GSM) system or code division multiple access (CDMA). The base transceiver station (BTS) can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evoled NodeB) in an LTE system. , ENB or eNodeB), it can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, and the future 5G The network equipment in the network or the network equipment in the PLMN network that will evolve in the future, one or a group of antenna panels (including multiple antenna panels) of the base station in the 5G system, or it can also be a network node that constitutes a gNB or transmission point, For example, a baseband unit (BBU), or a distributed unit (DU), etc., are not limited in the embodiment of the present application.
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能。比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，本申请对此不做限定。In some deployments, the gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some of the functions of the gNB, and the DU implements some of the functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer functions. The DU is responsible for processing the physical layer protocol and real-time services, and realizes the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , Or, sent by DU+AAU. It can be understood that the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into network equipment in an access network (radio access network, RAN), and the CU can also be divided into network equipment in a core network (core network, CN), which is not limited in this application.
在本申请实施例中，终端或网络设备包括硬件层、运行在硬件层之上的操作***层，以及运行在操作***层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作***可以是任意一种或多种通过进程(process)实现业务处理的计算机操作***，例如，Linux操作***、Unix操作***、Android操作***、iOS操作***或windows操作***等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且，本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可，例如，本申请实施例提供的方法的执行主体可以是终端或网络设备，或者，是终端或网络设备中能够调用程序并执行程序的功能模块。In the embodiment of the present application, the terminal or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory). The operating system can be any one or more computer operating systems that implement business processing through processes, for example, Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems, or windows operating systems. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. Moreover, the embodiments of the application do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided in accordance with the embodiments of the application. For example, the execution subject of the method provided in the embodiment of the present application may be a terminal or a network device, or a functional module in the terminal or network device that can call and execute the program.
另外，本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。In addition, various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques. The term "article of manufacture" used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
图1是本申请一个通信***的示意图。图1中的通信***可以包括至少一个终端(例如终端10、终端20、终端30、终端40、终端50和终端60)和网络设备70。网络设备70用于为终端提供通信服务并接入核心网，终端可以通过搜索网络设备70发送的同步信号、广播信号等接入网络，从而进行与网络的通信。图1中的终端10、终端20、终端30、终端40和终端60可以与网络设备70进行上下行传输。例如，网络设备70可以向终端10、终端20、终端30、终端40和终端60发送下行信号，也可以接收终端10、终端20、终端30、终端40和终端60发送的上行信号。Fig. 1 is a schematic diagram of a communication system of the present application. The communication system in FIG. 1 may include at least one terminal (for example, the terminal 10, the terminal 20, the terminal 30, the terminal 40, the terminal 50, and the terminal 60) and a network device 70. The network device 70 is used to provide communication services for the terminal and access the core network. The terminal can access the network by searching for synchronization signals, broadcast signals, etc. sent by the network device 70, so as to communicate with the network. The terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60 in FIG. 1 can perform uplink and downlink transmissions with the network device 70. For example, the network device 70 may send downlink signals to the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60, and may also receive the uplink signal sent by the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60.
此外，终端40、终端50和终端60也可以看作一个通信***，终端60可以向终端40和终端50发送下行信号，也可以接收终端40和终端50发送的上行信号。In addition, the terminal 40, the terminal 50, and the terminal 60 can also be regarded as a communication system, and the terminal 60 can send downlink signals to the terminal 40 and the terminal 50, and can also receive uplink signals sent by the terminal 40 and the terminal 50.
需要说明的是，本申请实施例可以应用于包括一个或多个网络设备的通信***中，也可以应用于包括一个或多个终端的通信***中，本申请对此不进行限定。It should be noted that the embodiments of the present application may be applied to a communication system including one or more network devices, and may also be applied to a communication system including one or more terminals, which is not limited in the present application.
应理解，该通信***中包括的网络设备可以是一个或多个。一个网络设备可以向一个或多个终端发送数据或控制信令。多个网络设备也可以同时向一个或多个终端发送数据或控制信令。It should be understood that there may be one or more network devices included in the communication system. A network device can send data or control signaling to one or more terminals. Multiple network devices can also send data or control signaling to one or more terminals at the same time.
下面将本申请涉及到的术语进行详细的介绍：The terms involved in this application are described in detail below:
1、波束(beam)：1. Beam:
波束在NR协议中的体现可以是空域滤波器(spatial domain filter)，或者称空间滤波器(spatial filter)或空间参数(spatial parameter)。用于发送信号的波束可以称为发送波束(transmission beam，Tx beam)，可以称为空域发送滤波器(spatial domain transmission filter)或空间发射参数(spatial transmission parameter)；用于接收信号的波束可以称为接收波束(reception beam，Rx beam)，可以称为空域接收滤波器(spatial domain receive filter) 或空间接收参数(spatial RX parameter)。The embodiment of the beam in the NR protocol can be a spatial domain filter, or a spatial filter or a spatial parameter. The beam used to transmit a signal can be called a transmission beam (Tx beam), can be called a spatial domain transmission filter or a spatial transmission parameter (spatial transmission parameter); the beam used to receive a signal can be called To receive a beam (reception beam, Rx beam), it can be called a spatial domain receive filter or a spatial receive parameter (spatial RX parameter).
发送波束可以是指信号经天线发射出去后在空间不同方向上形成的信号强度的分布，接收波束可以是指从天线上接收到的无线信号在空间不同方向上的信号强度分布。The transmitting beam may refer to the distribution of signal strength in different directions in space after a signal is transmitted through the antenna, and the receiving beam may refer to the signal strength distribution of the wireless signal received from the antenna in different directions in space.
此外，波束可以是宽波束，或者窄波束，或者其他类型波束。形成波束的技术可以是波束赋形技术或者其他技术。波束赋形技术具体可以为数字波束赋形技术、模拟波束赋形技术或者混合数字/模拟波束赋形技术等。In addition, the beam may be a wide beam, or a narrow beam, or other types of beams. The beam forming technology may be beamforming technology or other technologies. The beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology, etc.
波束一般和资源对应，例如进行波束测量时，网络设备通过不同的资源来测量不同的波束，终端反馈测得的资源质量，网络设备就知道对应的波束的质量。在数据传输是，波束信息也是通过其对应的资源来进行指示的。例如网络设备通过下行控制信息(down link control information，DCI)的传输配置指示(transmission configuration indication，TCI)中资源，来指示终端物理下行共享信道(physical downlink shared channel，PDSCH)波束的信息。Beams generally correspond to resources. For example, when performing beam measurement, network equipment uses different resources to measure different beams, and the terminal feeds back the measured resource quality, and the network equipment knows the quality of the corresponding beam. In data transmission, the beam information is also indicated by its corresponding resource. For example, the network device instructs the terminal physical downlink shared channel (PDSCH) beam information through the resources in the transmission configuration indication (transmission configuration indication, TCI) of downlink control information (downlink control information, DCI).
可选地，将具有相同或者类似的通信特征的多个波束视为是一个波束。一个波束内可以包括一个或多个天线端口，用于传输数据信道、控制信道和探测信号等。形成一个波束的一个或多个天线端口也可以看作是一个天线端口集。Optionally, multiple beams having the same or similar communication characteristics are regarded as one beam. One or more antenna ports can be included in one beam, which are used to transmit data channels, control channels, and sounding signals. One or more antenna ports forming a beam can also be regarded as an antenna port set.
在波束测量中，网络设备的每一个波束对应一个资源，因此可以以资源的索引来唯一标识该资源对应的波束。In beam measurement, each beam of the network device corresponds to a resource, so the resource index can be used to uniquely identify the beam corresponding to the resource.
2、资源：2. Resources:
在波束测量中，可以通过资源的索引来唯一标识该资源对应的波束。资源可以是上行信号资源，也可以是下行信号资源。上行信号包括但不限于探测参考信号(sounding reference signal，SRS)，解调参考信号(demodulation reference signal，DMRS)。下行信号包括但不限于：信道状态信息参考信号(channel state information reference signal，CSI-RS)、小区专用参考信号(cell specific reference signal，CS-RS)、UE专用参考信号(user equipment specific reference signal，US-RS)、解调参考信号(demodulation reference signal，DMRS)、以及同步信号/物理广播信道块(synchronization system/physical broadcast channel block，SS/PBCH block)。其中，SS/PBCH block可以简称为同步信号块(synchronization signal block，SSB)。In beam measurement, the resource index can be used to uniquely identify the beam corresponding to the resource. The resource can be an uplink signal resource or a downlink signal resource. Uplink signals include but are not limited to sounding reference signal (SRS) and demodulation reference signal (DMRS). Downlink signals include but are not limited to: channel state information reference signal (CSI-RS), cell specific reference signal (CS-RS), UE specific reference signal (user equipment specific reference signal, US-RS), demodulation reference signal (demodulation reference signal, DMRS), and synchronization signal/physical broadcast channel block (synchronization system/physical broadcast channel block, SS/PBCH block). Among them, the SS/PBCH block may be referred to as a synchronization signal block (synchronization signal block, SSB) for short.
资源通过无线资源控制信令(radio resource control，RRC)信令配置。在配置结构上，一个资源是一个数据结构，包括其对应的上行/下行信号的相关参数，例如上行/下行信号的类型，承载上行/下行信号的资源粒，上行/下行信号的发送时间和周期，发送上行/下行信号所采用的端口数等。每一个上行/下行信号的资源具有唯一的索引，以标识该下行信号的资源。可以理解的是，资源的索引也可以称为资源的标识，本申请实施例对此不作任何限制。Resources are configured through radio resource control (radio resource control, RRC) signaling. In terms of configuration structure, a resource is a data structure, including its corresponding uplink/downlink signal related parameters, such as the type of uplink/downlink signal, the resource element that carries the uplink/downlink signal, the transmission time and period of the uplink/downlink signal , The number of ports used to send uplink/downlink signals, etc. Each uplink/downlink signal resource has a unique index to identify the downlink signal resource. It is understandable that the index of the resource may also be referred to as the identifier of the resource, which is not limited in the embodiment of the present application.
3、准同位(quasi-co-location，QCL)：3. Quasi-co-location (QCL):
同位关系用于表示多个资源之间具有一个或多个相同或者相类似的通信特征，对于具有同位关系的多个资源，可以采用相同或者类似的通信配置。例如，如果两个天线端口具有同位关系，那么一个端口传送一个符号的信道大尺度特性可以从另一个端口传送一个符号的信道大尺度特性推断出来。大尺度特性可以包括：延迟扩展，平均延迟，多普勒扩展，多普勒频移，平均增益，接收参数，终端接收波束编号，发射/接收信道相关性，接收到 达角，接收机天线的空间相关性，主到达角(Angel-of-Arrival，AoA)，平均到达角，AoA的扩展等。准共址的参数包含：多普勒扩展，多普勒频移，平均时延，时延扩展和空域接收参数中的至少一项。可以将QCL关系分为四类：'QCL-TypeA':{多普勒频移,多普勒扩展,平均时延,时延扩展}；'QCL-TypeB':{多普勒频移,多普勒扩展}；'QCL-TypeC':{多普勒频移,平均时延}；-'QCL-TypeD':{空域接收参数}。The co-location relationship is used to indicate that multiple resources have one or more identical or similar communication features. For multiple resources with a co-location relationship, the same or similar communication configuration can be adopted. For example, if two antenna ports have a co-location relationship, then the large-scale characteristics of the channel transmitting one symbol on one port can be inferred from the large-scale characteristics of the channel transmitting one symbol on the other port. Large-scale characteristics can include: delay spread, average delay, Doppler spread, Doppler shift, average gain, receiving parameters, terminal receiving beam number, transmitting/receiving channel correlation, receiving angle of arrival, receiver antenna space Correlation, main angle of arrival (Angel-of-Arrival, AoA), average angle of arrival, expansion of AoA, etc. The parameters of quasi co-location include at least one of Doppler spread, Doppler frequency shift, average delay, delay spread and spatial reception parameters. The QCL relationship can be divided into four categories:'QCL-TypeA': {Doppler frequency shift, Doppler spread, average delay, delay spread};'QCL-TypeB': {Doppler frequency shift, multiple Puller extension};'QCL-TypeC': {Doppler frequency shift, average delay}; -'QCL-TypeD': {space domain receiving parameter}.
4、载波聚合(carrier aggregation，CA)，可以将两个或多个成员载波(component carrier，CC))聚合在一起，实现更大的传输带宽，有效提高上下行传输速率。CA可以支持带内连续载波聚合、带内不连续载波聚合或带间不连续载波聚合等。其中，成员载波也可以称为载波分量(carrier component，CC)。4. Carrier aggregation (CA) can aggregate two or more component carriers (component carriers, CC) together to achieve a larger transmission bandwidth and effectively increase the uplink and downlink transmission rates. CA can support in-band continuous carrier aggregation, in-band discontinuous carrier aggregation, or inter-band discontinuous carrier aggregation. Among them, the component carrier may also be referred to as a carrier component (CC).
5、带宽部分(bandwidth part,BWP)：可以理解为一段连续的频带，该频带包含至少一个连续的子带，每个带宽部分可以对应一组***参数(numerology)，包括例如但不限于，子载波间隔、循环前缀(cyclic prefix，CP)长度、传输时间间隔(transmission time interval,TTI)、符号(Symbol)个数、资源块(resource block，RB)位置、时隙长度和帧格式等。不同带宽部分可以对应不同的***参数。5. Bandwidth part (BWP): It can be understood as a continuous frequency band. The frequency band includes at least one continuous subband. Each bandwidth part can correspond to a set of system parameters (numerology), including, for example, but not limited to, subbands. Carrier interval, cyclic prefix (CP) length, transmission time interval (TTI), number of symbols (Symbol), resource block (RB) location, time slot length, frame format, etc. Different bandwidth parts can correspond to different system parameters.
应注意的是本申请的各个实施例中，小区与载波分量可以等效替换，因为在通信协议中，一个CC通常被当做一个独立的小区。CC、带宽部分、CC/BWP、CC和/或BWP也可以等效替换，因为它们都可以用于描述一端频域资源。It should be noted that in the various embodiments of the present application, the cell and carrier components can be replaced equivalently, because in the communication protocol, a CC is usually regarded as an independent cell. CC, bandwidth part, CC/BWP, CC and/or BWP can also be replaced equivalently, because they can all be used to describe one end of frequency domain resources.
6、主小区：工作在主频段上，终端设备在使用主小区执行初始连接或者重建连接。6. Primary cell: Working on the primary frequency band, the terminal equipment is using the primary cell to perform initial connection or re-establish the connection.
7、辅小区组(secondary cell group，SCG)：对于配置了双连接的终端设备，一个包含主辅小区(primary SCG cell)和其他辅小区的服务小区的子集。7. Secondary cell group (SCG): For terminal devices configured with dual connectivity, a subset of serving cells that includes primary and secondary cells (primary SCG cells) and other secondary cells.
8、主辅小区：对于双连接操作，主辅小区指终端设备执行同步重配时发送随机接入的小区。8. Primary and secondary cells: For dual connectivity operations, primary and secondary cells refer to the cells that send random access when the terminal device performs synchronous reconfiguration.
9、特殊小区：对于双连接操作，特殊小区指主小区组(master cell group，MCG)的主小区或者辅小区组的主辅小区，否则，特殊小区为主小区。9. Special cell: For dual connectivity operation, the special cell refers to the primary cell of a master cell group (master cell group, MCG) or the primary and secondary cells of a secondary cell group; otherwise, the special cell is the primary cell.
10、辅小区：如果终端设备配置了CA功能，在特殊小区之外提供额外的无线资源的小区。10. Secondary cell: If the terminal device is configured with the CA function, it is a cell that provides additional radio resources outside of the special cell.
11、服务小区：对于无线资源控制链接(RRC_CONNECTED)状态的终端设备，如果没有配置CA/双链接(double connection，DC)，只有一个服务小区，即主小区；如果配置了CA/DC，服务小区包括特殊小区和所有辅小区的结合。11. Serving cell: For terminal equipment in the RRC_CONNECTED state, if CA/double connection (DC) is not configured, there is only one serving cell, that is, the primary cell; if CA/DC is configured, the serving cell Including the combination of special cells and all auxiliary cells.
需要说明的是，随着技术的不断发展，本申请实施例的术语有可能发生变化，但都在本申请的保护范围之内。It should be noted that with the continuous development of technology, the terminology of the embodiments of this application may change, but they are all within the protection scope of this application.
传统方案中波束失败恢复的流程如下所述。如图2示出了辅小区的波束失败恢复的方法的示意性流程图。The procedure of beam failure recovery in the traditional scheme is as follows. Fig. 2 shows a schematic flowchart of a method for beam failure recovery of a secondary cell.
201，终端进行波束失败检测。201: The terminal performs beam failure detection.
终端基于辅小区进行波束失败检测。具体地，终端监测波束失败检测参考信号(beam failure detection reference signal,BFD RS)，每隔一定的周期，如果判断链路质量低于门限，则记一次波束失败实例，并且由终端的物理层发送一个指示给终端的高层，例如终端链路层。终端的高层开启一个波束失败计时器，并且将波束失败计数器加1。如果终端的高层在波束失败计时器到期之前，波束计数器计数超过了最大值，则宣布波束失败。The terminal performs beam failure detection based on the secondary cell. Specifically, the terminal monitors the beam failure detection reference signal (BFD RS), and every certain period, if the link quality is judged to be lower than the threshold, a beam failure instance is recorded and sent by the physical layer of the terminal An indication to the higher layer of the terminal, such as the terminal link layer. The upper layer of the terminal starts a beam failure timer and increments the beam failure counter by 1. If the upper layer of the terminal exceeds the maximum value of the beam counter count before the beam failure timer expires, it declares a beam failure.
可以理解的是，这里的周期可以叫做波束失败实例指示周期。它与BFD RS的周期有关。例如周期等于2毫秒和多个BFD RS周期中最小者中的较大值。It is understandable that the period here may be called the beam failure instance indication period. It is related to the period of BFD RS. For example, the period is equal to the larger of 2 milliseconds and the smallest of multiple BFD RS periods.
可以理解的是，BFD RS包括物理下行控制信道(physical downlink control channel，PDCCH)的波束对应的RS，或者是控制资源集合(CORESET)的波束对应的RS。It can be understood that the BFD RS includes an RS corresponding to a beam of a physical downlink control channel (PDCCH), or an RS corresponding to a beam of a control resource set (CORESET).
202，终端寻找新的可用波束。202. The terminal searches for a new available beam.
具体地，网络设备可以预先为终端配置备选波束集合(candidate beam RS)。终端可以从该备选波束集合中选择满足条件的备选波束(例如，波束质量高于给定备选波束质量门限)。此外，终端也可能没有发现可用波束。Specifically, the network device may configure a candidate beam set (candidate beam RS) for the terminal in advance. The terminal may select candidate beams that meet the condition from the candidate beam set (for example, the beam quality is higher than a given candidate beam quality threshold). In addition, the terminal may not find an available beam.
可以理解的是，步骤201和步骤302的先后顺序可以不进行限定。也就是说，终端在当前波束没有失败的情况下，也可以寻找新的可用波束。或者说，对于周期性发送的参考信号终端可以一直测量和维护其质量，不需要等到波束失败之后才进行测量。It can be understood that the sequence of step 201 and step 302 may not be limited. In other words, the terminal can also search for a new available beam without failing the current beam. In other words, for the periodically transmitted reference signal terminal, the quality can be measured and maintained all the time, and the measurement does not need to wait until the beam fails.
203，终端向网络设备发送波束失败恢复请求(beam failure recovery request,BFRQ)。203. The terminal sends a beam failure recovery request (BFRQ) to the network device.
具体地，若终端没有发现新的可用波束，则终端向网络设备发送调度请求(scheduling request,SR)向网络设备请求上行传输资源。由于这是一个专门配置为BFRQ功能的SR，所以基站收到这个SR则能够知道终端发生了波束失败的情况。因此，该SR又可以称为SR-based BFRQ，PUCCH-based BFRQ，或者链接恢复请求(link recovery request，LRR)。Specifically, if the terminal does not find a new available beam, the terminal sends a scheduling request (scheduling request, SR) to the network device to request the network device for uplink transmission resources. Since this is an SR specially configured as the BFRQ function, the base station can know that the terminal has a beam failure after receiving this SR. Therefore, the SR may also be called SR-based BFRQ, PUCCH-based BFRQ, or link recovery request (LRR).
可以理解的是，该SR的发送可以在主小区进行。It is understandable that the SR can be sent in the primary cell.
204，网络设备为终端调度上行传输资源。204. The network device schedules uplink transmission resources for the terminal.
网络设备在获知到终端发生了波束失败，但是还不知道终端是哪一个小区发生了波束失败，也不知道新可用波束是哪些。因此，网络设备需要为终端调度上行传输资源，例如，物理上行链路共享信道(physical uplink shared channel，PUSCH)传输资源。终端可以通过上行传输资源向网络设备发送具体发生波束失败的小区，以及是否找到新的可用波束。The network equipment has learned that the terminal has a beam failure, but it does not yet know which cell of the terminal has the beam failure, nor does it know which beams are newly available. Therefore, the network device needs to schedule uplink transmission resources for the terminal, for example, physical uplink shared channel (PUSCH) transmission resources. The terminal can send to the network device the specific cell where the beam fails and whether a new available beam is found through the uplink transmission resources.
可以理解的是，网络设备可以通过DCI为终端调度上行资源。其中，该DCI中包括混合自动重传请求(hybrid automatic repeat request，HARQ)进程号字段，新数据传输指示字段(New data indicator,NDI)，还可以包括可用于PUSCH传输的时间资源，频率资源，以及还可以包括PUSCH的天线端口，调制和编码方式等。It is understandable that the network device can schedule uplink resources for the terminal through DCI. Among them, the DCI includes a hybrid automatic repeat request (HARQ) process number field, a new data transmission indicator (NDI) field, and may also include time resources and frequency resources that can be used for PUSCH transmission. And it can also include the antenna port of the PUSCH, modulation and coding methods, etc.
205，终端通过PUSCH向网络设备发送上行媒体访问控制控制单元(media access control control element，MAC CE)，以通知网络设备出现波束失败的小区信息，以及新可用波束信息。205. The terminal sends an uplink media access control control element (MAC CE) to the network device through the PUSCH to notify the network device of the cell information of the beam failure and the information of the newly available beam.
具体地，如果终端没有找到满足条件的新可用波束，则新可用波束信息可以指示没有找到新的可用波束。Specifically, if the terminal does not find a new available beam that meets the condition, the new available beam information may indicate that no new available beam is found.
可以理解的是，终端发送MAC CE可以是在主小区进行的。It is understandable that the terminal sending the MAC CE may be performed in the primary cell.
需要说明的是，若终端有上行传输资源，则终端可以不执行上述步骤303和304。即终端直接采用上行传输资源向网络设备发送MAC CE。It should be noted that if the terminal has uplink transmission resources, the terminal may not perform steps 303 and 304 above. That is, the terminal directly uses the uplink transmission resource to send the MAC CE to the network device.
206，网络设备向终端发送该MAC CE的响应消息，该MAC CE的响应消息用于确认网络设备正确的接收到该MAC CE。206. The network device sends a response message of the MAC CE to the terminal, and the response message of the MAC CE is used to confirm that the network device correctly receives the MAC CE.
具体地，终端接收到该MAC CE的响应消息之后，可以认为波束失败恢复成功。其中，该MAC CE的响应消息可以是独立的消息，也可以是复用现有的DCI，即DCI还可以具有该MAC CE的响应消息的功能。例如，该DCI包括的HARQ进程号与步骤204中 的DCI的HARQ进程号相同，但是新数据指示(new data indicator，NDI)字段翻转(即不同)。此外，该结构的DCI还可以用于指示网络设备成功接收到PUSCH。Specifically, after the terminal receives the response message of the MAC CE, it can be considered that the beam failure recovery is successful. Wherein, the response message of the MAC CE may be an independent message, or it may reuse the existing DCI, that is, the DCI may also have the function of the response message of the MAC CE. For example, the HARQ process ID included in the DCI is the same as the HARQ process ID of the DCI in step 204, but the new data indicator (NDI) field is flipped (that is, different). In addition, the DCI of this structure can also be used to indicate that the network device successfully receives the PUSCH.
207，终端接收来自网络设备发送的波束相关信息。207. The terminal receives beam related information sent from the network device.
具体地，网络设备还可以为终端重新配置波束信息。Specifically, the network device may also reconfigure beam information for the terminal.
可以理解的是，终端在接收到该MAC CE的响应消息之后，直到接收到网络设备发送的新波束配置相关信息之前，网络设备默认使用新的可用波束发送物理下行控制信道(physical downlink control channel，PDCCH)，或者终端默认使用网络设备的新的可用发送波束对应终端的接收波束对应的发送波束发送上行控制信道(physical uplink control channel，PUCCH)。It is understandable that after the terminal receives the MAC CE response message, until receiving the new beam configuration related information sent by the network device, the network device uses the new available beam to send the physical downlink control channel by default. PDCCH), or the terminal sends the uplink control channel (physical uplink control channel, PUCCH) by default using the new available sending beam of the network device and the corresponding sending beam corresponding to the receiving beam of the terminal.
也就是说，传统方案中，终端当前与网络设备之间的通信波束失败的情况下，若没有找到新的波束，则终端无法与网络设备进行通信。例如，在图3所示的实施例中，步骤302中终端没有找到新的可用波束，则在步骤307之前，终端无法与网络设备之间在辅小区上进行通信。因此，终端在当前与网络设备之间的通信波束失败，且没有找到新的波束的情况下，终端如何与网络设备进行通信亟待解决。That is to say, in the traditional solution, if the current communication beam between the terminal and the network device fails, if a new beam is not found, the terminal cannot communicate with the network device. For example, in the embodiment shown in FIG. 3, the terminal does not find a new usable beam in step 302, and before step 307, the terminal cannot communicate with the network device on the secondary cell. Therefore, when the current communication beam between the terminal and the network device fails and no new beam is found, how the terminal communicates with the network device needs to be solved urgently.
图3示出了本申请实施例的波束失败恢复的方法的示意性流程图。FIG. 3 shows a schematic flowchart of a method for beam failure recovery according to an embodiment of the present application.
301，终端在与网络设备之间的第一发送波束的波束失败，且未发现第二发送波束的情况下，接收触发消息，该第二发送波束为该网络设备能够与该终端通信的发送波束。相应地，网络设备发送该触发消息。301. The terminal receives a trigger message when the beam of the first transmission beam between the network device and the network device fails and the second transmission beam is not found, and the second transmission beam is a transmission beam that the network device can communicate with the terminal. . Correspondingly, the network device sends the trigger message.
具体地，网络设备可以采用第一发送波束与终端进行通信。终端与网络设备之间的第一发送波束的波束失败可以理解为终端检测网络设备采用该第一发送波束发送的参考信号，该参考信号的质量低于预设阈值的情况下，则终端认为第一发送波束的波束失败。若终端与网络设备之间通信的第一发送波束失败，且没有在第一发送波束集合中找到第二发送波束的情况下，则终端检测并接收网络设备发送的触发消息。其中，该第二发送波束为网络设备可以用于与终端进行通信的一个或多个发送波束。该触发消息可以用于触发终端重新进行波束选择。Specifically, the network device may use the first transmission beam to communicate with the terminal. The beam failure of the first transmission beam between the terminal and the network device can be understood as the terminal detecting the reference signal sent by the network device using the first transmission beam. If the quality of the reference signal is lower than the preset threshold, the terminal considers the first transmission beam A beam of the transmission beam fails. If the first transmission beam of the communication between the terminal and the network device fails and the second transmission beam is not found in the first transmission beam set, the terminal detects and receives the trigger message sent by the network device. Wherein, the second transmission beam is one or more transmission beams that the network device can use to communicate with the terminal. The trigger message can be used to trigger the terminal to perform beam selection again.
可以理解的是，该第一发送波束集合包括网络设备的一个或多个发送波束。该第一发送波束集合可以是网络设备直接配置的，也可以是间接配置的，还可以是协议约定的。例如，网络设备可以直接配置一个波束列表，该波束列表包括网络设备的一个或多个发送波束。或者，网络设备间接配置该第一发送波束集合，例如，终端自动将该小区的同步信号/物理广播信道(physical broadcast channel,SSB)和/或周期性发送的信道状态指示参考信号(channel state information reference signal，CSI-RS)对应的发送波束作为该第一波束集合中的发送波束。其中，本申请实施例中的“波束”可以理解为“参考信号”，或者说“波束”与“参考信号”具有映射关系。这样，“波束列表”可以是“参考信号列表(candidate beam RS SCell list)”，该列表中的每一个参考信号可以是SSB或者CSI-RS。相应地，“波束集合”对应“参考信号集合”(例如，步骤202中的备选波束集合)。It can be understood that the first transmission beam set includes one or more transmission beams of the network device. The first transmission beam set may be directly configured by the network device, may also be indirectly configured, or may be agreed upon by a protocol. For example, the network device may directly configure a beam list, and the beam list includes one or more transmission beams of the network device. Alternatively, the network device indirectly configures the first transmission beam set. For example, the terminal automatically configures the synchronization signal/physical broadcast channel (physical broadcast channel, SSB) of the cell and/or the periodically transmitted channel state indication reference signal (channel state information). The reference signal (CSI-RS) corresponding to the transmission beam is used as the transmission beam in the first beam set. Among them, the "beam" in the embodiment of the present application can be understood as a "reference signal", or that the "beam" and the "reference signal" have a mapping relationship. In this way, the "beam list" can be a "reference signal list (candidate beam RS SCell list)", and each reference signal in the list can be an SSB or a CSI-RS. Correspondingly, the "beam set" corresponds to the "reference signal set" (for example, the candidate beam set in step 202).
还可以理解的是，第一发送波束也可以属于一个波束列表，例如，网络设备可以直接配置第一发送波束所属的波束列表，该波束列表包括网络设备的一个或多个发送波束。网络设备也可以间接配置该第一发送波束所属的波束集合，例如，终端可以将具有QCL关系的多个发送波束确定为该第一发送波束所属的波束集合。更具体地，终端自动检测 PDCCH CORESET TCI state中类型为QCL typeD的参考信号，将QCL typeD的多个参考信号确定为第一发送波束所属的波束集合。It is also understandable that the first transmission beam may also belong to a beam list. For example, the network device may directly configure the beam list to which the first transmission beam belongs, and the beam list includes one or more transmission beams of the network device. The network device may also indirectly configure the beam set to which the first transmit beam belongs. For example, the terminal may determine multiple transmit beams having a QCL relationship as the beam set to which the first transmit beam belongs. More specifically, the terminal automatically detects reference signals of type QCL typeD in the PDCCH CORESET TCI state, and determines multiple reference signals of QCL typeD as the beam set to which the first transmission beam belongs.
还可以理解的是，该第一发送波束可以是在该第一发送波束集合中，也可以不在该第一发送波束集合中，本申请实施例对此不进行限定。It can also be understood that the first transmission beam may be in the first transmission beam set or not in the first transmission beam set, which is not limited in the embodiment of the present application.
还可以理解的是，本申请实施例中，在步骤301之前，终端的操作可以与201-204相同。此外，在步骤201之前，终端还可以向网络设备发送能力信息，该能力信息用于指示终端支持波束失败恢复功能(即BFR流程)的辅小区数目的最大值，或终端最大支持的用于新的可用波束发现的参考信号数目，或者终端最大支持的用于波束失败检测的参考信号数目。其中，参考信号数目可以是针对一个小区的，也可以是针对所有小区的，本申请对此不进行限定。It can also be understood that, in this embodiment of the present application, before step 301, the operation of the terminal may be the same as 201-204. In addition, before step 201, the terminal may also send capability information to the network device. The capability information is used to indicate the maximum number of secondary cells that the terminal supports the beam failure recovery function (that is, the BFR process), or the maximum number of secondary cells supported by the terminal for new The number of reference signals available for beam discovery, or the maximum number of reference signals supported by the terminal for beam failure detection. The number of reference signals may be for one cell or for all cells, which is not limited in this application.
可选地，步骤301中终端可以是在辅小区上与网络设备之间的第一发送波束的波束失败，且未发现第二发送波束；或者步骤301中终端也可以是在主小区上与网络设备之间的第一发送波束失败，且未发现第二发送波束。为方便描述，下述实施例中以辅小区为例进行说明，但本申请并不限于此。Optionally, in step 301, the terminal may be the first transmission beam between the secondary cell and the network device, and the beam of the first transmission beam failed, and the second transmission beam is not found; or in step 301, the terminal may also be connected to the network on the primary cell. The first transmission beam between the devices failed, and the second transmission beam was not found. For the convenience of description, the following embodiments take the secondary cell as an example for description, but the application is not limited to this.
可以理解的是，终端在辅小区上与网络设备之间的第一发送波束失败可以是终端在辅小区上与网络设备之间的某一个发送波束失败，也可以是终端在辅小区上与网络设备之间的所有发送波束失败。也就是说，网络设备与终端在辅小区上通信的某一个发送波束可以称为第一发送波束。或者说，网络设备与终端在辅小区上通信的所有发送波束失败，则认为网络设备与终端在辅小区上的通信的波束失败，这种情况下，该第一发送波束失败是指所有的发送波束失败。为方便描述，下述实施例以第一发送波束为网络设备与终端通信的任意一个发送波束，但本申请对此不进行限定。It is understandable that the failure of the first transmission beam between the terminal and the network device on the secondary cell may be the failure of one of the transmission beams between the terminal on the secondary cell and the network device, or the failure of the terminal on the secondary cell and the network device. All transmission beams between devices failed. That is, a certain transmission beam that the network device communicates with the terminal on the secondary cell may be referred to as the first transmission beam. In other words, if all the transmission beams of the network equipment and the terminal communication on the secondary cell fail, it is considered that the communication beams of the network equipment and the terminal on the secondary cell have failed. In this case, the first transmission beam failure refers to all the transmission beams. The beam failed. For the convenience of description, the following embodiments use the first transmission beam as any transmission beam for communication between the network device and the terminal, but this application does not limit this.
在一个示例中，在步骤301之前，终端在与网络设备之间的第一发送波束失败，且未发现第二发送波束的情况下，终端可以向网络设备发送MAC CE，该MAC CE用于指示该终端在与所述网络设备之间的第一发送波束的失败之后，未发现该第二发送波束。网络设备接收到该MAC CE之后，向该终端发送该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到该MAC CE。其中，步骤301具体可以是该终端在接收到该MAC CE的响应消息之后，接收该触发消息。In an example, before step 301, if the first transmission beam between the terminal and the network device fails and the second transmission beam is not found, the terminal may send a MAC CE to the network device, and the MAC CE is used to indicate After the failure of the first transmission beam between the terminal and the network device, the second transmission beam is not found. After receiving the MAC CE, the network device sends a response message of the MAC CE to the terminal. The response message of the MAC CE is used to indicate that the network device has received the MAC CE. Wherein, step 301 may specifically be that the terminal receives the trigger message after receiving the response message of the MAC CE.
具体地，终端向网络设备发送MAC CE，该MAC CE指示当前的第一发送波束的波束失败，以及终端没有发现新的可用波束(即第二发送波束)。网络设备在接收到该MAC CE之后向终端反馈该MAC CE的响应消息(例如，该MAC CE的响应消息为确认消息(acknowledgement，ACK))。终端在接收到该MAC CE的响应消息之后，接收网络设备发送的触发消息。也就是说，该触发消息可以单独发送，提高了发送触发消息的灵活性。Specifically, the terminal sends a MAC CE to the network device, and the MAC CE indicates that the current beam of the first transmission beam fails, and the terminal does not find a new available beam (that is, the second transmission beam). After receiving the MAC CE, the network device feeds back the response message of the MAC CE to the terminal (for example, the response message of the MAC CE is an acknowledgement message (acknowledgement, ACK)). After receiving the MAC CE response message, the terminal receives the trigger message sent by the network device. In other words, the trigger message can be sent separately, which improves the flexibility of sending the trigger message.
可选地，如果该MAC CE的响应消息复用现有的DCI，那么该DCI包括的HARQ进程号与调度该MAC CE传输的DCI(即步骤204中的DCI)的HARQ进程号相同，但是新数据指示(new data indicator，NDI)字段翻转。例如，终端可以复用现有调度PUSCH传输的DCI格式，例如现有DCI格式0_0，DCI格式0_1，DCI格式0_2等【引用现有标准TS 38.211 v16.0.0】。其中，DCI格式0_1至少包括以下字段，字段的功能具体如下所示：Optionally, if the response message of the MAC CE multiplexes the existing DCI, the HARQ process ID included in the DCI is the same as the HARQ process ID of the DCI scheduling the MAC CE transmission (that is, the DCI in step 204), but is new The data indicator (new data indicator, NDI) field is flipped. For example, the terminal can reuse the existing DCI format for scheduling PUSCH transmission, such as the existing DCI format 0_0, DCI format 0_1, DCI format 0_2, etc. [quote existing standard TS 38.211 v16.0.0]. Among them, the DCI format 0_1 includes at least the following fields, and the functions of the fields are as follows:
表1Table 1
Figure PCTCN2020075106-appb-000001
Figure PCTCN2020075106-appb-000001
可选的，作为MAC CE的响应消息的DCI格式与调度该MAC CE传输的DCI相同。Optionally, the DCI format used as the response message of the MAC CE is the same as the DCI scheduled for transmission of the MAC CE.
可以理解的是，该触发消息可以是DCI消息，该DCI消息的格式可以与图2所示的实施例中步骤206的DCI的格式相同(例如，DCI格式为0_1)，也可以不同，本申请对此不进行限定。It is understandable that the trigger message may be a DCI message, and the format of the DCI message may be the same as the DCI format of step 206 in the embodiment shown in FIG. 2 (for example, the DCI format is 0_1), or may be different. There is no restriction on this.
可选地，该终端在接收到该MAC CE的响应消息之后，接收该触发消息具体可以是在终端在预设时段阈值内接收该触发消息。Optionally, after the terminal receives the response message of the MAC CE, receiving the trigger message may specifically be that the terminal receives the trigger message within a preset time period threshold.
具体地，终端在接收到该MAC CE的响应消息之后，若在预设时段阈值内接收到该触发消息，则根据该触发消息进行后续的操作；若在超过预设时段阈值接收到该触发消息，可以认为辅小区已经失败，该触发消息无效，即不执行触发消息指示的后续操作。Specifically, after receiving the MAC CE response message, if the terminal receives the trigger message within the preset time period threshold, it performs subsequent operations according to the trigger message; if the terminal receives the trigger message beyond the preset time period threshold , It can be considered that the secondary cell has failed, and the trigger message is invalid, that is, the subsequent operation indicated by the trigger message is not performed.
可以理解的是，该预设时段阈值的起始时刻可以是该终端接收到该MAC CE的响应消息的时刻。该预设时段阈值的时长可以是与波束失败恢复计时器(由高层信令beamfailurerecoverytimer配置)的长度相关的时间长度，例如10毫秒，20毫秒，40毫秒，80毫秒，200毫秒等。It is understandable that the starting time of the preset time period threshold may be the time when the terminal receives the response message of the MAC CE. The length of the preset time period threshold may be a time length related to the length of the beam failure recovery timer (configured by high-level signaling beamfailurerecoverytimer), such as 10 milliseconds, 20 milliseconds, 40 milliseconds, 80 milliseconds, 200 milliseconds, and so on.
在另一个示例中，在步骤301之前，终端向网络设备发送MAC CE。其中，步骤301具体可以是终端在与网络设备之间的该第一发送波束的波束失败，且未发现该第二发送波束的情况下，接收该MAC CE的响应消息，该MAC CE的响应消息包括该触发消息。In another example, before step 301, the terminal sends a MAC CE to the network device. Wherein, step 301 may specifically be that the terminal receives the response message of the MAC CE and the response message of the MAC CE when the beam of the first transmission beam between the terminal and the network device fails and the second transmission beam is not found. Include the trigger message.
具体地，该MAC CE的响应消息可以携带该触发消息。也就是说，该触发消息可以复用MAC CE的响应消息中的相关字段，例如DCI格式0_1或者DCI格式0_2中的 CSI-request字段，从而减少了等待触发消息的时间，加速了找到新的可用波束的时间。Specifically, the response message of the MAC CE may carry the trigger message. In other words, the trigger message can reuse the relevant fields in the MAC CE response message, such as the CSI-request field in DCI format 0_1 or DCI format 0_2, thereby reducing the time waiting for a trigger message and speeding up finding new ones that are available The time of the beam.
可选地，该终端在上述两个示例中接收到该MAC CE的响应消息时，可以停止检测对应于该第一发送波束的参考信号。例如，终端停止在辅小区检测第一发送波束对应的PDCCH。或者终端停止在辅小区检测原有配置的BFD RS或者原有配置的PDCCH CORESET TCI state中QCL typed RS。Optionally, when the terminal receives the MAC CE response message in the above two examples, it may stop detecting the reference signal corresponding to the first transmission beam. For example, the terminal stops detecting the PDCCH corresponding to the first transmission beam in the secondary cell. Or the terminal stops detecting the originally configured BFD RS or the originally configured QCL typed RS in the PDCCH CORESET TCI state in the secondary cell.
具体地，本申请实施例中，终端进行波束恢复是通过采用新的波束进行通信。因此，当终端接收到MAC CE的响应消息时，确定第一发送波束的波束失败，则可以停止检测对应于第一发送波束的参考信号，避免了不断检测第一发送波束对应的参考信号造成的功耗浪费，即本申请实施例节省了终端的功耗开销。Specifically, in the embodiment of the present application, the terminal performs beam recovery by using a new beam for communication. Therefore, when the terminal receives the MAC CE response message and determines that the beam of the first transmission beam fails, it can stop detecting the reference signal corresponding to the first transmission beam, avoiding the continuous detection of the reference signal corresponding to the first transmission beam. The power consumption is wasted, that is, the embodiment of the present application saves the power consumption of the terminal.
例如，该终端可以启动一个波束失败禁止检测计时器(BFD prohibit timer)，在其生效的时间内，终端可以不进行波束失败检测。For example, the terminal may start a beam failure prohibit timer (BFD prohibit timer), and the terminal may not perform beam failure detection within the effective time.
可选地，该终端在上述两个示例中接收到该MAC CE的响应消息时，可以停止向上层发送指示信息，该指示信息用于指示该第一发送波束的波束失败。Optionally, when the terminal receives the MAC CE response message in the above two examples, it may stop sending indication information to the upper layer, where the indication information is used to indicate that the beam of the first transmission beam fails.
具体地，传统方案中，终端在检测到第一发送波束的波束失败，重复的向上层发送指示信息，即不断的告知第一发送波束的波束失败，以使得上层进行持续的发起MAC CE的传输。换句话说，本申请实施例中，由于终端已经成功的向网络设备反馈了波束失败的信息，因此没有必要进行执行针对该第一发送波束再进行波束失败的检测了，从而节省了终端的功耗开销。Specifically, in the traditional solution, when the terminal detects the beam failure of the first transmission beam, it repeatedly sends indication information to the upper layer, that is, continuously informs the first transmission beam of the beam failure, so that the upper layer continuously initiates MAC CE transmission. . In other words, in the embodiment of the present application, since the terminal has successfully fed back the beam failure information to the network device, there is no need to perform beam failure detection for the first transmission beam, thereby saving the terminal's power. Consumption overhead.
可选地，该终端在上述两个示例中接收到该MAC CE的响应消息时，可以停止或不启动波束失败计时器的计时。Optionally, when the terminal receives the MAC CE response message in the above two examples, it may stop or not start the timing of the beam failure timer.
具体地，由于波束失败还可以快速的恢复，因此，本申请实施例中终端可以不停止波束失败计时器的计时，或者不启动波束失败计时器的计时。这样终端可以等待波束恢复，而不需要进行波束失败的后续操作，例如终端重新接入网络设备，节省了终端的功耗开销。Specifically, because the beam failure can also be recovered quickly, the terminal in the embodiment of the present application may not stop the timing of the beam failure timer or not start the timing of the beam failure timer. In this way, the terminal can wait for beam recovery without performing follow-up operations after beam failure, for example, the terminal reconnects to the network device, which saves the power consumption of the terminal.
可选地，该终端在上述两个示例中接收到该MAC CE的响应消息时，可以不停止波束失败恢复计时器的计时。Optionally, when the terminal receives the MAC CE response message in the above two examples, it may not stop the timing of the beam failure recovery timer.
具体地，由于波束失败还在恢复过程中，因此终端可以不停止波束失败恢复计时器的计时，从而有助于终端记录波束失败恢复的时长，有助于提高了终端后续操作的性能。Specifically, since the beam failure is still in the process of recovery, the terminal may not stop the timing of the beam failure recovery timer, which helps the terminal record the duration of beam failure recovery and helps improve the performance of subsequent operations of the terminal.
302，该终端根据该触发消息，接收来自该网络设备的多个参考信号，该多个参考信号用于确定所述第二发送波束。302. The terminal receives multiple reference signals from the network device according to the trigger message, where the multiple reference signals are used to determine the second transmission beam.
具体地，网络设备和终端可以通过预先约定，或者协议约定，该触发消息的格式。这样网络设备在接收到约定的格式的触发消息时，该终端可以重新进行波束训练。例如，终端可以将当前状态调整为接收参考信号的状态。终端可以接收到来自网络设备发送的多个参考信号，其中，参考信号和发送波束可以具有关联关系或映射关系，这样终端可以根据该多个参考信号确定能够与终端进行通信的第二发送波束。也就是说，终端不需要通过重新接入网络设备就可以实现波束恢复，且相对于重新接入网络设备的波束恢复的时延较短，即本申请实施例可以有助于减少波束失败恢复的时延。Specifically, the network device and the terminal may pre-arrange or agree on the format of the trigger message. In this way, when the network device receives the trigger message in the agreed format, the terminal can perform beam training again. For example, the terminal may adjust the current state to the state of receiving the reference signal. The terminal may receive multiple reference signals sent from the network device, where the reference signal and the transmission beam may have an association relationship or a mapping relationship, so that the terminal can determine a second transmission beam capable of communicating with the terminal according to the multiple reference signals. In other words, the terminal does not need to reconnect to the network device to achieve beam recovery, and the delay of beam recovery is relatively short compared to reconnecting to the network device. That is, the embodiment of the present application can help reduce beam failure recovery. Time delay.
可以理解的是，该约定的格式的触发消息可以是约定格式的DCI。其中DCI格式0_1或者DCI格式0_2中的CSI-request的长度为N比特的，N的值取决于网络设备通过高层信令如RRC信令和/或MAC CE信令配置和/或的激活的非周期CSI触发状态 (CSI-AperiodicTriggerState)的数目。每一个非周期CSI触发状态关联一个或多个上报设置(ReportConfig)，每一个上报设置对应一个或多个资源设置(ResourceConfig)。每个资源设置中包含一个资源集合列表(ResourceSetList)，其中，该资源集合列表包括一个或多个资源集合。每个资源集合中包括一个或多个资源。该资源可以是CSI-RS资源或者SSB资源。It is understandable that the trigger message in the agreed format may be the DCI in the agreed format. The length of the CSI-request in DCI format 0_1 or DCI format 0_2 is N bits, and the value of N depends on the configuration and/or activation of the network equipment through high-level signaling such as RRC signaling and/or MAC CE signaling. The number of periodic CSI trigger states (CSI-AperiodicTriggerState). Each aperiodic CSI trigger state is associated with one or more report settings (ReportConfig), and each report setting corresponds to one or more resource settings (ResourceConfig). Each resource set includes a resource set list (ResourceSetList), where the resource set list includes one or more resource sets. Each resource collection includes one or more resources. The resource can be a CSI-RS resource or an SSB resource.
例如，网络设备可以触发终端在辅小区进行检测SSB和/或CSI-RS的L1-参考信号接收功率(reference signal received power，RSRP)或者L1-信号噪声干扰比(signal to interference plus noise ratio，SINR)(one candidate solution is that gNB could trigger aperiodic L1-RSRP measurement and report for the failed SCell)。具体地，网络设备通过该触发消息(DCI中的CSI request字段)可以指示给终端一个具体的非周期CSI触发状态，其关联的上报设置中的上报量为L1-RSRP。For example, the network equipment can trigger the terminal to detect the L1-reference signal received power (RSRP) or L1-signal to interference plus noise ratio (SINR) of SSB and/or CSI-RS in the secondary cell. ) (one candidate solution is that gNB could trigger aperiodic L1-RSRP measurement and report for the failed SCell). Specifically, the network device can indicate a specific aperiodic CSI trigger state to the terminal through the trigger message (the CSI request field in the DCI), and the reported amount in the associated report setting is L1-RSRP.
可以理解的是，该多个参考信号可以与网络设备的多个发送波束一一对应，或者一个参考信号可以对应多个发送波束，或者多个参考信号对应一个发送波束，本申请对此不进行限定。It is understandable that the multiple reference signals may correspond to multiple transmission beams of the network device one-to-one, or one reference signal may correspond to multiple transmission beams, or multiple reference signals correspond to one transmission beam. This application does not deal with this. limited.
还可以理解的是，发送波束集合还可以称为“参考信号集合”。It can also be understood that the transmission beam set may also be referred to as a "reference signal set".
可选地，该多个参考信号对应第二发送波束集合中的发送波束，该第二发送波束集合包括的发送波束可以与第一发送波束集合中的发送波束部分或全部不同。Optionally, the multiple reference signals correspond to transmission beams in a second transmission beam set, and the transmission beams included in the second transmission beam set may be partially or completely different from the transmission beams in the first transmission beam set.
具体地，网络设备可以发送波束集合为终端配置新可用发送波束集合，若终端没有在第一发送波束集合找到第二发送波束，则网络设备还可以为终端配置第二发送波束集合。由于第二发送波束集合存在第一发送波束集合不包括的波束，这样终端可能从第二发送波束集合中找到该第二发送波束。Specifically, the network device may configure a new available transmission beam set for the terminal by sending the beam set. If the terminal does not find the second transmission beam in the first transmission beam set, the network device may also configure the second transmission beam set for the terminal. Since there are beams that are not included in the first transmission beam set in the second transmission beam set, the terminal may find the second transmission beam from the second transmission beam set.
可选地，终端可以根据多个参考信号的接收信号功率，确定该第二发送波束。Optionally, the terminal may determine the second transmission beam according to received signal powers of multiple reference signals.
例如，终端可以将大于预设接收信号功率阈值的参考信号对应的发送波束确定为该第二发送波束。若大于该预设接收信号功率阈值的参考信号为多个，则将接收信号功率最大值的参考信号对应的发送波束确定为第二发送波束。For example, the terminal may determine a transmission beam corresponding to a reference signal greater than a preset received signal power threshold as the second transmission beam. If there are multiple reference signals greater than the preset received signal power threshold, the transmission beam corresponding to the reference signal with the maximum received signal power is determined as the second transmission beam.
再例如，终端可以直接将接收信号功率最大的发送波束确定为该第二发送波束。For another example, the terminal may directly determine the transmission beam with the highest received signal power as the second transmission beam.
可选地，在步骤302之后，终端向网络设备发送测量报告，该测量报告用于指示该第二发送波束的信息。之后，网络设备采用该第二发送波束与终端进行通信。Optionally, after step 302, the terminal sends a measurement report to the network device, where the measurement report is used to indicate the information of the second transmission beam. After that, the network device uses the second transmitting beam to communicate with the terminal.
可以理解的是，网络设备在接收到该测量报告之后，可以立即采用该第二发送波束与终端进行通信，也可以先向终端确定测量报告已经正确接收，再通过该第二发送波束与终端进行通信，本申请对此不进行限定。It is understandable that after receiving the measurement report, the network device can immediately use the second transmission beam to communicate with the terminal, or first confirm to the terminal that the measurement report has been received correctly, and then communicate with the terminal through the second transmission beam. Communication, this application does not limit this.
可以理解的是，终端在发送测量报告后，可以立即采用该第二发送波束对应的终端的收发波束与网络设备进行通信，也可以在网络设备向终端确认测量报告已经正确接收之后再通过该第二发送波束对应的终端收发波束与网络设备进行通信，本申请对此不进行限定。其中，网络设备通过第二发送波束与终端进行通信具体可以是网络设备采用第二发送波束向终端发送PDCCH，PDSCH，CSI-RS，或者网络设备采用该第二发送波束对应的接收波束接收来自终端的PUCCH,PUSCH,SRS，PRACH，本申请对此不进行限定。其中，终端采用第二发送波束对应的终端的收发波束与网络设备进行通信具体可以是终端采用第二发送波束对应的终端的接收波束接收PDCCH，PDSCH，CSI-RS，或者终端采用第二 发送波束对应的终端的发送波束发送PUCCH,PUSCH,SRS，PRACH等。其中，该第二发送波束对应的终端的接收波束，该终端的接收波束又对应的发送波束可以理解为该第二发送波束对应的终端的发送波束。It is understandable that after the terminal sends the measurement report, it can immediately use the transceiver beam of the terminal corresponding to the second transmission beam to communicate with the network device, or it can pass the second transmission beam after the network device confirms to the terminal that the measurement report has been correctly received. 2. The transmitting and receiving beams of the terminal corresponding to the transmitting beam communicate with the network device, which is not limited in this application. Wherein, the network device communicates with the terminal through the second transmit beam, specifically, the network device uses the second transmit beam to transmit PDCCH, PDSCH, CSI-RS to the terminal, or the network device uses the receive beam corresponding to the second transmit beam to receive from the terminal. PUCCH, PUSCH, SRS, PRACH, this application does not limit this. Wherein, the terminal uses the transceiver beam of the terminal corresponding to the second transmit beam to communicate with the network device, specifically, the terminal may use the receive beam of the terminal corresponding to the second transmit beam to receive PDCCH, PDSCH, CSI-RS, or the terminal uses the second transmit beam The transmission beam of the corresponding terminal transmits PUCCH, PUSCH, SRS, PRACH, etc. The receiving beam of the terminal corresponding to the second sending beam, and the sending beam corresponding to the receiving beam of the terminal can be understood as the sending beam of the terminal corresponding to the second sending beam.
可以理解的是，如果从终端接收到该MAC CE的响应消息及触发消息开始计时，在一段时间后，终端才能使用第二发送波束对应的终端收发波束与网络行通信。这一段时间中终端必须完成所触发的波束测量和上报，因此至少需要的时间长度为Z3，即协议要求的终端CSI处理时间，这一时间长度与终端能力和/或子载波间隔有关，例如为44个符号，96个符号，336个符号等。如果考虑需要在网络设备确认测量报告已经正确接收之后才能使用第二发送波束对应的终端收发波束与网络进行通信，那么这一时间长度还需增加，例如，为Z3+T，其中T与基站处理能力和/或子载波间隔有关，例如T为可以为28个符号或者56个符号。It is understandable that if the MAC CE response message and trigger message are started from the terminal, after a period of time, the terminal can use the terminal receiving and sending beam corresponding to the second sending beam to communicate with the network. During this period of time, the terminal must complete the triggered beam measurement and report. Therefore, the required time length is at least Z3, which is the terminal CSI processing time required by the protocol. This time length is related to the terminal capabilities and/or subcarrier spacing, for example, 44 symbols, 96 symbols, 336 symbols, etc. If it is considered that the network equipment needs to confirm that the measurement report has been correctly received before using the terminal receiving and transmitting beam corresponding to the second transmitting beam to communicate with the network, then this time length needs to be increased, for example, Z3+T, where T is processed by the base station The capability is related to the subcarrier spacing. For example, T can be 28 symbols or 56 symbols.
换句话说，如果终端没有找到新可用波束，那么终端在接收到一个与调度该MAC CE传输的DCI的HARQ进程号相同，但是新数据指示(new data indicator，NDI)字段翻转的DCI之后的一段时间(这段时间长度为28个符号和Z3的最大值，其中Z3是TS 38.214中规定的终端CSI计算时间)以后，终端在SCell接收PDCCH时使用最近一次L1-RSRP上报的波束。(If an index q_"new"is not available,after Z3 symbols from a last symbol of a PDCCH reception with a DCI format scheduling a PUSCH transmission with a same HARQ process number as for the transmission of the first PUSCH and having a toggled NDI field value,where Z3 is UE CSI computation time according to TS 38.214,the UE receives PDCCH on the at least one SCell with same antenna port quasi-collocation parameters as the ones associated with a corresponding index reported in the latest aperiodic L1-RSRP report triggered by the same PDCCH.)In other words, if the terminal does not find a new available beam, the terminal will receive a section after the DCI with the same DCI as the DCI scheduled for the MAC CE transmission but with the new data indicator (NDI) field flipped. After a period of time (the length of this period is 28 symbols and the maximum value of Z3, where Z3 is the terminal CSI calculation time specified in TS 38.214), the terminal uses the beam reported by the most recent L1-RSRP when receiving the PDCCH in the SCell. (If an index q_"new" is not available, after Z3 symbols from a last symbol of a PDCCH reception with a DCI format Scheduling a PUSCH transmission with a same HARQ process and number as for the first DI SCH to a transmission field value, where Z3 is UE CSI computation time according to TS 38.214, the UE receives PDCCH on the least one SCell with same antenna port quad-collocation parameters as the first port of the corresponding RS associated with the corresponding index triggered by the same PDCCH.)
可选地，终端在确定该第二发送波束之后，可以停止波束失败恢复计时器的计时，并认为波束失败恢复成功。Optionally, after determining the second transmission beam, the terminal may stop the timing of the beam failure recovery timer, and consider that the beam failure recovery is successful.
可选地，终端在确定该第二发送波束之后，可以停止波束失败禁止检测计时器。Optionally, after determining the second transmission beam, the terminal may stop the beam failure prohibition detection timer.
本文中描述的各个实施例可以为独立的方案，也可以根据内在逻辑进行组合，这些方案都落入本申请的保护范围中。The various embodiments described in this document may be independent solutions, or may be combined according to internal logic, and these solutions fall within the protection scope of the present application.
可以理解的是，上述各个方法实施例中，由终端实现的方法和操作，也可以由可用于终端的部件(例如芯片或者电路)实现，由网络设备实现的方法和操作，也可以由可用于网络设备的部件(例如芯片或者电路)实现。It can be understood that, in the foregoing method embodiments, the methods and operations implemented by the terminal can also be implemented by components (such as chips or circuits) that can be used in the terminal, and the methods and operations implemented by the network device can also be implemented by the terminal. The components (such as chips or circuits) of network equipment are implemented.
上述主要从各个交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，各个网元，例如发射端设备或者接收端设备，为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of various interactions. It can be understood that each network element, such as a transmitting end device or a receiving end device, includes hardware structures and/or software modules corresponding to each function in order to realize the above-mentioned functions. Those skilled in the art should be aware that, in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
本申请实施例可以根据上述方法示例对发射端设备或者接收端设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成 在一个处理模块中。上述集成的模块既可以使用硬件的形式实现，也可以使用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。下面以使用对应各个功能划分各个功能模块为例进行说明。The embodiments of the present application can divide the transmitting end device or the receiving end device into functional modules according to the foregoing method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. middle. The above-mentioned integrated modules can be implemented either in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of using the corresponding functional modules to divide each functional module.
应理解，本申请实施例中的具体的例子只是为了帮助本领域技术人员更好地理解本申请实施例，而非限制本申请实施例的范围。It should be understood that the specific examples in the embodiments of the present application are only to help those skilled in the art to better understand the embodiments of the present application, rather than limiting the scope of the embodiments of the present application.
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。It should be understood that in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application. The implementation process constitutes any limitation.
以上，结合图3详细说明了本申请实施例提供的方法。以下，结合图4至图11详细说明本申请实施例提供的装置。应理解，装置实施例的描述与方法实施例的描述相互对应，因此，未详细描述的内容可以参见上文方法实施例，为了简洁，这里不再赘述。Above, the method provided by the embodiment of the present application has been described in detail with reference to FIG. 3. Hereinafter, the device provided by the embodiment of the present application will be described in detail with reference to FIG. 4 to FIG. 11. It should be understood that the description of the device embodiment and the description of the method embodiment correspond to each other. Therefore, for the content that is not described in detail, please refer to the above method embodiment. For the sake of brevity, it will not be repeated here.
图4示出了本申请实施例的波束失败恢复的装置4800的示意性框图。FIG. 4 shows a schematic block diagram of an apparatus 4800 for beam failure recovery according to an embodiment of the present application.
应理解，该装置400可以对应于图1所示的各个终端或终端内的芯片，以及图3所示的实施例中的终端或终端内的芯片，可以具有图3所示的方法实施例中的终端的任意功能。该装置400，包括处理模块410和收发模块420，该收发模块420具体可以包括接收模块和发送模块。It should be understood that the device 400 may correspond to each terminal or chip in the terminal shown in FIG. 1, and the terminal or chip in the terminal in the embodiment shown in FIG. Any function of the terminal. The device 400 includes a processing module 410 and a transceiver module 420. The transceiver module 420 may specifically include a receiving module and a sending module.
该处理模块410，用于在与网络设备之间的第一发送波束的波束失败，且未发现第二发送波束的情况下，通过该收发模块420接收触发消息，该第二发送波束为该网络设备能够与终端通信的发送波束；The processing module 410 is configured to receive a trigger message through the transceiver module 420 when the beam of the first transmission beam with the network device fails and the second transmission beam is not found, and the second transmission beam is the network The transmission beam that the device can communicate with the terminal;
该处理模块410，还用于根据该触发消息，通过该收发模块420接收来自该网络设备的多个参考信号，该多个参考信号用于确定该第二发送波束。The processing module 410 is further configured to receive multiple reference signals from the network device through the transceiver module 420 according to the trigger message, and the multiple reference signals are used to determine the second transmission beam.
可选地，该收发模块420，还用于发送媒体介入控制控制单元MAC CE，该MAC CE用于指示该终端与该网络设备之间的第一发送波束的波束失败，且未发现该第二发送波束；该收发模块420，还用于接收该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到该MAC CE；其中，该处理模块410具体用于：在接收到该MAC CE的响应消息之后，通过该收发模块420接收该触发消息。Optionally, the transceiver module 420 is further configured to send a media intervention control control unit MAC CE, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device fails, and the second transmission beam is not found. Transmit beam; the transceiver module 420 is also used to receive the MAC CE response message, the MAC CE response message is used to indicate that the network device receives the MAC CE; wherein, the processing module 410 is specifically used to: After the MAC CE response message, the trigger message is received through the transceiver module 420.
可选地，该收发模块420，还用于发送MAC CE，该MAC CE用于指示该终端在与该网络设备之间的该第一发送波束的波束失败，且未发现该第二发送波束；其中，该处理模块410具体用于：在与网络设备之间的该第一发送波束的波束失败，且未发现该第二发送波束的情况下，通过该收发模块420接收该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到该MAC CE，且该MAC CE的响应消息包括该触发消息。Optionally, the transceiver module 420 is further configured to send a MAC CE, where the MAC CE is used to indicate that the terminal has failed the beam of the first transmission beam between the terminal and the network device, and the second transmission beam is not found; The processing module 410 is specifically configured to receive the MAC CE response message through the transceiver module 420 when the beam of the first transmission beam with the network device fails and the second transmission beam is not found. The response message of the MAC CE is used to indicate that the network device has received the MAC CE, and the response message of the MAC CE includes the trigger message.
可选地，该处理模块410，还用于在接收到该MAC CE的响应消息时，停止检测对应于该第一发送波束的参考信号。Optionally, the processing module 410 is further configured to stop detecting the reference signal corresponding to the first transmission beam when the response message of the MAC CE is received.
可选地，该处理模块410，还用于在接收到该MAC CE的响应消息时，停止向上层发送指示信息，该指示信息用于指示该第一发送波束的波束失败。Optionally, the processing module 410 is further configured to stop sending indication information to the upper layer when the response message of the MAC CE is received, and the indication information is used to indicate that the beam of the first transmission beam fails.
可选地，该处理模块410，还用于在接收到该MAC CE的响应消息时，停止或不启动波束失败计时器的计时。Optionally, the processing module 410 is further configured to stop or not start the timing of the beam failure timer when the response message of the MAC CE is received.
可选地，该收发模块420，还用于与采用该第二发送波束的该网络设备进行通信。Optionally, the transceiver module 420 is further configured to communicate with the network device that uses the second transmitting beam.
因此，本申请实施例中，若终端与网络设备之间通信的第一发送波束失败，且没有找到第二发送波束的情况下，则终端检测并接收网络设备发送的触发消息。该终端在接收到该触发消息之后，可以重新进行波束训练，即终端可以接收到来自网络设备发送的多个参考信号，这样终端可以根据该多个参考信号确定能够与终端进行通信的第二发送波束。也就是说，终端不需要通过重新接入网络设备就可以实现波束恢复，且相对于重新接入网络设备的波束恢复的时延较短，即本申请实施例可以有助于减少波束失败恢复的时延。Therefore, in the embodiment of the present application, if the first transmission beam of the communication between the terminal and the network device fails and the second transmission beam is not found, the terminal detects and receives the trigger message sent by the network device. After the terminal receives the trigger message, it can perform beam training again, that is, the terminal can receive multiple reference signals sent from the network device, so that the terminal can determine the second transmission that can communicate with the terminal based on the multiple reference signals. Beam. In other words, the terminal does not need to reconnect to the network device to achieve beam recovery, and the delay of beam recovery is relatively short compared to reconnecting to the network device. That is, the embodiment of the present application can help reduce beam failure recovery. Time delay.
关于上述收发模块420和处理模块410更详细的描述，可参考上述方法实施例中的相关描述，在此不再说明。For a more detailed description of the foregoing transceiver module 420 and processing module 410, reference may be made to the relevant description in the foregoing method embodiment, which is not described herein again.
图5示出了本申请实施例提供的通信装置500，该装置500可以为图3中所述的终端。该装置可以采用如图5所示的硬件架构。该装置可以包括处理器510和收发器530，可选地，该装置还可以包括存储器540，该处理器510、收发器530和存储器540通过内部连接通路互相通信。图4中的处理模块410所实现的相关功能可以由处理器510来实现，收发模块420所实现的相关功能可以由处理器510控制收发器530来实现。FIG. 5 shows a communication device 500 provided by an embodiment of the present application, and the device 500 may be the terminal described in FIG. 3. The device can adopt the hardware architecture shown in FIG. 5. The device may include a processor 510 and a transceiver 530. Optionally, the device may also include a memory 540. The processor 510, the transceiver 530, and the memory 540 communicate with each other through an internal connection path. The related functions implemented by the processing module 410 in FIG. 4 may be implemented by the processor 510, and the related functions implemented by the transceiver module 420 may be implemented by the processor 510 controlling the transceiver 530.
可选地，处理器510可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，专用处理器，或一个或多个用于执行本申请实施例技术方案的集成电路。或者，处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。例如可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、终端、或芯片等)进行控制，执行软件程序，处理软件程序的数据。Optionally, the processor 510 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions). For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control communication devices (such as base stations, terminals, or chips), execute software programs, and process data in the software programs.
可选地，该处理器510可以包括是一个或多个处理器，例如包括一个或多个中央处理单元(central processing unit，CPU)，在处理器是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。Optionally, the processor 510 may include one or more processors, for example, include one or more central processing units (central processing unit, CPU). In the case where the processor is a CPU, the CPU may be a single processor. The core CPU can also be a multi-core CPU.
该收发器530用于发送和接收数据和/或信号，以及接收数据和/或信号。该收发器可以包括发射器和接收器，发射器用于发送数据和/或信号，接收器用于接收数据和/或信号。The transceiver 530 is used to send and receive data and/or signals, and to receive data and/or signals. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.
该存储器540包括但不限于是随机存取存储器(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程存储器(erasable programmable read only memory，EPROM)、只读光盘(compact disc read-only memory，CD-ROM)，该存储器540用于存储相关指令及数据。The memory 540 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read only memory, EPROM), and read-only memory. A compact disc (read-only memory, CD-ROM), the memory 540 is used to store related instructions and data.
存储器540用于存储终端的程序代码和数据，可以为单独的器件或集成在处理器510中。The memory 540 is used to store program codes and data of the terminal, and may be a separate device or integrated in the processor 510.
具体地，所述处理器510用于控制收发器与终端进行信息传输。具体可参见方法实施例中的描述，在此不再赘述。Specifically, the processor 510 is configured to control the transceiver to perform information transmission with the terminal. For details, please refer to the description in the method embodiment, which will not be repeated here.
在具体实现中，作为一种实施例，装置500还可以包括输出设备和输入设备。输出设备和处理器510通信，可以以多种方式来显示信息。例如，输出设备可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备和处理器510通信，可以以多种方式接收用户的输入。例如，输入设备可以是鼠标、键盘、触摸屏设备或传感设备等。In a specific implementation, as an embodiment, the apparatus 500 may further include an output device and an input device. The output device communicates with the processor 510 and can display information in a variety of ways. For example, the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc. . The input device communicates with the processor 510 and can receive user input in a variety of ways. For example, the input device can be a mouse, a keyboard, a touch screen device, or a sensor device.
可以理解的是，图5仅仅示出了通信装置的简化设计。在实际应用中，该装置还可以分别包含必要的其他元件，包含但不限于任意数量的收发器、处理器、控制器、存储器等，而所有可以实现本申请的终端都在本申请的保护范围之内。It can be understood that FIG. 5 only shows a simplified design of the communication device. In practical applications, the device may also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals that can implement this application are within the protection scope of this application. within.
在一种可能的设计中，该装置500可以是芯片，例如可以为可用于终端中的通信芯片，用于实现终端中处理器510的相关功能。该芯片可以为实现相关功能的现场可编程门阵列，专用集成芯片，***芯片，中央处理器，网络处理器，数字信号处理电路，微控制器，还可以采用可编程控制器或其他集成芯片。该芯片中，可选的可以包括一个或多个存储器，用于存储程序代码，当所述代码被执行时，使得处理器实现相应的功能。In a possible design, the device 500 may be a chip, for example, a communication chip that can be used in a terminal to implement related functions of the processor 510 in the terminal. The chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. The chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.
本申请实施例还提供一种装置，该装置可以是终端也可以是电路。该装置可以用于执行上述方法实施例中由终端所执行的动作。The embodiment of the present application also provides a device, which may be a terminal or a circuit. The device can be used to perform the actions performed by the terminal in the foregoing method embodiments.
图6示出了本申请实施例的传输随机接入前导的装置600的示意性框图。FIG. 6 shows a schematic block diagram of an apparatus 600 for transmitting a random access preamble according to an embodiment of the present application.
应理解，该装置600可以对应于图1所示的网络设备或网络设备内的芯片，或者图3所示的实施例中的网络设备或网络设备内的芯片，可以具有方法中的网络设备的任意功能。该装置600，包括处理模块610和收发模块620。It should be understood that the apparatus 600 may correspond to the network device or the chip in the network device shown in FIG. 1, or the network device or the chip in the network device in the embodiment shown in FIG. Any function. The device 600 includes a processing module 610 and a transceiver module 620.
该处理模块610，用于在与终端之间的第一发送波束的波束失败，且该终端未发现第二发送波束的情况下，通过收发模块向该终端发送触发消息，该触发消息用于触发该终端检测参考信号，其中，该第二发送波束为网络设备能够与该终端通信的发送波束；The processing module 610 is configured to send a trigger message to the terminal through the transceiver module when the beam of the first transmission beam with the terminal fails and the terminal does not find the second transmission beam, and the trigger message is used to trigger The terminal detects the reference signal, where the second transmission beam is a transmission beam that the network device can communicate with the terminal;
该收发模块620，还用于向该终端发送多个参考信号，该多个参考信号用于确定该第二发送波束。The transceiver module 620 is further configured to send multiple reference signals to the terminal, and the multiple reference signals are used to determine the second transmission beam.
可选地，该收发模块620，还用于接收来自该终端的媒体介入控制控制单元MAC CE，该MAC CE用于指示该终端与该网络设备之间的第一发送波束的波束失败，且未发现该第二发送波束；该收发模块620，还用于向该终端发送该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到该MAC CE。Optionally, the transceiver module 620 is further configured to receive a media intervention control control unit MAC CE from the terminal, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device has failed, and is not The second transmission beam is found; the transceiver module 620 is further configured to send a response message of the MAC CE to the terminal, and the response message of the MAC CE is used to indicate that the network device receives the MAC CE.
可选地，该收发模块620，还用于接收来自该终端的MAC CE，该MAC CE用于指示该终端与该网络设备之间的第一发送波束的波束失败，且未发现该第二发送波束；其中，该处理模块610具体用于：在接收到该MAC CE之后，通过该收发模块620向该终端发送该MAC CE的响应消息，该MAC CE的响应消息用于指示该网络设备接收到该MAC CE，且该MAC CE的响应消息包括该触发消息。Optionally, the transceiver module 620 is further configured to receive a MAC CE from the terminal, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device fails, and the second transmission is not found Beam; wherein, the processing module 610 is specifically configured to: after receiving the MAC CE, send the MAC CE response message to the terminal through the transceiver module 620, and the MAC CE response message is used to indicate that the network device receives The MAC CE, and the response message of the MAC CE includes the trigger message.
可选地，该处理模块610，还用于在接收到该MAC CE的响应消息时，停止检测对应于该第一发送波束的参考信号。Optionally, the processing module 610 is further configured to stop detecting the reference signal corresponding to the first transmission beam when the response message of the MAC CE is received.
可选地，该处理模块610，还用于在接收到该MAC CE的响应消息时，停止向上层发送指示信息，该指示信息用于指示该第一发送波束的波束失败。Optionally, the processing module 610 is further configured to stop sending indication information to the upper layer when the response message of the MAC CE is received, and the indication information is used to indicate that the beam of the first transmission beam fails.
可选地，该处理模块610，还用于在接收到该MAC CE的响应消息时，停止或不启动波束失败计时器的计时。Optionally, the processing module 610 is further configured to stop or not start the timing of the beam failure timer when the response message of the MAC CE is received.
可选地，该收发模块620，还用于与采用该第二发送波束的该网络设备进行通信。Optionally, the transceiver module 620 is further configured to communicate with the network device using the second transmitting beam.
因此，本申请实施例中，若终端与网络设备之间通信的第一发送波束失败，且没有找到第二发送波束的情况下，则终端检测并接收网络设备发送的触发消息，以使得该终端在接收到该触发消息之后，重新进行波束训练。例如，终端可以将当前状态调整为接收参考信号的状态。终端可以接收到来自网络设备发送的多个参考信号，其中，参考信号和发送 波束可以具有关联关系或映射关系，这样终端可以根据该多个参考信号确定能够与终端进行通信的第二发送波束。也就是说，终端不需要通过重新接入网络设备就可以实现波束恢复，且相对于重新接入网络设备的波束恢复的时延较短，即本申请实施例可以有助于减少波束失败恢复的时延。Therefore, in the embodiment of the present application, if the first transmission beam of the communication between the terminal and the network device fails and the second transmission beam is not found, the terminal detects and receives the trigger message sent by the network device, so that the terminal After receiving the trigger message, beam training is performed again. For example, the terminal may adjust the current state to the state of receiving the reference signal. The terminal may receive multiple reference signals sent from the network device, where the reference signal and the transmission beam may have an association relationship or a mapping relationship, so that the terminal can determine a second transmission beam capable of communicating with the terminal according to the multiple reference signals. In other words, the terminal does not need to reconnect to the network device to achieve beam recovery, and the delay of beam recovery is relatively short compared to reconnecting to the network device. That is, the embodiment of the present application can help reduce beam failure recovery. Time delay.
关于上述收发模块610和处理模块620更详细的描述，可参考上述方法实施例中的相关描述，在此不再说明。For a more detailed description of the foregoing transceiver module 610 and processing module 620, reference may be made to the relevant description in the foregoing method embodiment, which is not described here.
图7示出了本申请实施例提供的通信装置700，该装置700可以为图3中所述的网络设备。该装置可以采用如图7所示的硬件架构。该装置可以包括处理器710和收发器720，可选地，该装置还可以包括存储器730，该处理器710、收发器720和存储器730通过内部连接通路互相通信。图6中的处理模块610所实现的相关功能可以由处理器710来实现，收发模块620所实现的相关功能可以由处理器710控制收发器720来实现。FIG. 7 shows a communication device 700 provided by an embodiment of the present application. The device 700 may be the network device described in FIG. 3. The device can adopt the hardware architecture shown in FIG. 7. The device may include a processor 710 and a transceiver 720. Optionally, the device may also include a memory 730. The processor 710, the transceiver 720, and the memory 730 communicate with each other through an internal connection path. The related functions implemented by the processing module 610 in FIG. 6 may be implemented by the processor 710, and the related functions implemented by the transceiver module 620 may be implemented by the processor 710 controlling the transceiver 720.
可选地，处理器710可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，专用处理器，或一个或多个用于执行本申请实施例技术方案的集成电路。或者，处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。例如可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、终端、或芯片等)进行控制，执行软件程序，处理软件程序的数据。Optionally, the processor 710 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions). For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control communication devices (such as base stations, terminals, or chips), execute software programs, and process data in the software programs.
可选地，该处理器710可以包括是一个或多个处理器，例如包括一个或多个中央处理单元(central processing unit，CPU)，在处理器是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。Optionally, the processor 710 may include one or more processors, for example, include one or more central processing units (central processing unit, CPU). In the case where the processor is a CPU, the CPU may be a single processor. The core CPU can also be a multi-core CPU.
该收发器720用于发送和接收数据和/或信号，以及接收数据和/或信号。该收发器可以包括发射器和接收器，发射器用于发送数据和/或信号，接收器用于接收数据和/或信号。The transceiver 720 is used to send and receive data and/or signals, and to receive data and/or signals. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.
该存储器730包括但不限于是随机存取存储器(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程存储器(erasable programmable read only memory，EPROM)、只读光盘(compact disc read-only memory，CD-ROM)，该存储器730用于存储相关指令及数据。The memory 730 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read only memory, EPROM), and read-only memory. A compact disc (read-only memory, CD-ROM), and the memory 730 is used to store related instructions and data.
存储器730用于存储网络设备的程序代码和数据，可以为单独的器件或集成在处理器710中。The memory 730 is used to store program codes and data of the network device, and may be a separate device or integrated in the processor 710.
具体地，所述处理器710用于控制收发器与终端进行信息传输。具体可参见方法实施例中的描述，在此不再赘述。Specifically, the processor 710 is configured to control the transceiver to perform information transmission with the terminal. For details, please refer to the description in the method embodiment, which will not be repeated here.
在具体实现中，作为一种实施例，装置700还可以包括输出设备和输入设备。输出设备和处理器710通信，可以以多种方式来显示信息。例如，输出设备可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备和处理器710通信，可以以多种方式接收用户的输入。例如，输入设备可以是鼠标、键盘、触摸屏设备或传感设备等。In a specific implementation, as an embodiment, the apparatus 700 may further include an output device and an input device. The output device communicates with the processor 710 and can display information in a variety of ways. For example, the output device can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc. . The input device communicates with the processor 710 and can receive user input in a variety of ways. For example, the input device can be a mouse, a keyboard, a touch screen device, or a sensor device.
可以理解的是，图7仅仅示出了通信装置的简化设计。在实际应用中，该装置还可以分别包含必要的其他元件，包含但不限于任意数量的收发器、处理器、控制器、存储器等， 而所有可以实现本申请的网络设备都在本申请的保护范围之内。It can be understood that FIG. 7 only shows a simplified design of the communication device. In practical applications, the device may also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all network devices that can implement this application are protected by this application. Within range.
在一种可能的设计中，该装置700可以是芯片，例如可以为可用于网络设备中的通信芯片，用于实现网络设备中处理器710的相关功能。该芯片可以为实现相关功能的现场可编程门阵列，专用集成芯片，***芯片，中央处理器，网络处理器，数字信号处理电路，微控制器，还可以采用可编程控制器或其他集成芯片。该芯片中，可选的可以包括一个或多个存储器，用于存储程序代码，当所述代码被执行时，使得处理器实现相应的功能。In a possible design, the apparatus 700 may be a chip, for example, a communication chip that can be used in a network device, and is used to implement related functions of the processor 710 in the network device. The chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. The chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.
本申请实施例还提供一种装置，该装置可以是网络设备也可以是电路。该装置可以用于执行上述方法实施例中由网络设备所执行的动作。The embodiment of the present application also provides a device, which may be a network device or a circuit. The device can be used to perform the actions performed by the network device in the foregoing method embodiments.
可选地，本实施例中的装置为终端时，图8示出了一种简化的终端的结构示意图。便于理解和图示方便，图8中，终端以手机作为例子。如图8所示，终端包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端可以不具有输入输出装置。Optionally, when the device in this embodiment is a terminal, FIG. 8 shows a simplified schematic diagram of the structure of the terminal. It is easy to understand and easy to illustrate. In Figure 8, the terminal uses a mobile phone as an example. As shown in Figure 8, the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process the communication protocol and communication data, and to control the terminal, execute the software program, and process the data of the software program. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminals may not have input and output devices.
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图8中仅示出了一个存储器和处理器。在实际的终端产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of description, only one memory and processor are shown in FIG. 8. In actual end products, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端的收发单元，将具有处理功能的处理器视为终端的处理单元。如图8所示，终端包括收发单元810和处理单元820。收发单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将收发单元810中用于实现接收功能的器件视为接收单元，将收发单元810中用于实现发送功能的器件视为发送单元，即收发单元810包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。In the embodiments of the present application, the antenna and radio frequency circuit with the transceiver function may be regarded as the transceiver unit of the terminal, and the processor with the processing function may be regarded as the processing unit of the terminal. As shown in FIG. 8, the terminal includes a transceiver unit 810 and a processing unit 820. The transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, and so on. The processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on. Optionally, the device for implementing the receiving function in the transceiving unit 810 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiving unit 810 can be regarded as the sending unit, that is, the transceiving unit 810 includes a receiving unit and a sending unit. The transceiver unit may sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit. The receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit. The transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
应理解，收发单元810用于执行上述方法实施例中终端侧的发送操作和接收操作，处理单元820用于执行上述方法实施例中终端上除了收发操作之外的其他操作。It should be understood that the transceiving unit 810 is configured to perform the sending and receiving operations on the terminal side in the foregoing method embodiment, and the processing unit 820 is configured to perform other operations on the terminal in addition to the transceiving operation in the foregoing method embodiment.
例如，在一种实现方式中，处理单元820用于执行图3中终端侧的处理步骤。收发单元810，用于执行图3中的步骤301和302中的收发操作，和/或收发单元810还用于执行本申请实施例中终端侧的其他收发步骤。For example, in an implementation manner, the processing unit 820 is configured to execute the processing steps on the terminal side in FIG. 3. The transceiving unit 810 is configured to perform the transceiving operations in steps 301 and 302 in FIG. 3, and/or the transceiving unit 810 is further configured to perform other transceiving steps on the terminal side in the embodiment of the present application.
当该装置为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电路。When the device is a chip, the chip includes a transceiver unit and a processing unit. Wherein, the transceiver unit may be an input/output circuit or a communication interface; the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip.
可选地，该装置为终端时，还可以参照图9所示的设备。作为一个例子，该设备可以 完成类似于图5中处理器510的功能。在图9中，该设备包括处理器901，发送数据处理器903，接收数据处理器905。上述图4所示的实施例中的处理模块410可以是图9中的该处理器901，并完成相应的功能。上述图4所示的实施例中的收发模块420可以是图9中的发送数据处理器903和接收数据处理器905。虽然图9中示出了信道编码器、信道解码器，但是可以理解这些模块并不对本实施例构成限制性说明，仅是示意性的。Optionally, when the device is a terminal, the device shown in FIG. 9 can also be referred to. As an example, the device can perform functions similar to the processor 510 in FIG. 5. In FIG. 9, the device includes a processor 901, a data sending processor 903, and a data receiving processor 905. The processing module 410 in the embodiment shown in FIG. 4 may be the processor 901 in FIG. 9 and completes corresponding functions. The transceiving module 420 in the embodiment shown in FIG. 4 may be the sending data processor 903 and the receiving data processor 905 in FIG. 9. Although the channel encoder and the channel decoder are shown in FIG. 9, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are merely illustrative.
图10示出本实施例的另一种形式。处理装置1000中包括调制子***、中央处理子***、周边子***等模块。本实施例中的通信设备可以作为其中的调制子***。具体的，该调制子***可以包括处理器1003，接口1004。其中处理器1003完成上述处理模块410的功能，接口1004完成上述收发模块420的功能。作为另一种变形，该调制子***包括存储器1006、处理器1003及存储在存储器上并可在处理器上运行的程序，所述处理器执行所述程序时实现实施例所述方法。需要注意的是，所述存储器1006可以是非易失性的，也可以是易失性的，其位置可以位于调制子***内部，也可以位于处理装置1000中，只要该存储器1006可以连接到所述处理器1003即可。Fig. 10 shows another form of this embodiment. The processing device 1000 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The communication device in this embodiment can be used as the modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1003 and an interface 1004. The processor 1003 completes the function of the aforementioned processing module 410, and the interface 1004 completes the function of the aforementioned transceiver module 420. As another variation, the modulation subsystem includes a memory 1006, a processor 1003, and a program stored in the memory and running on the processor, and the processor implements the method described in the embodiment when the program is executed. It should be noted that the memory 1006 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1000, as long as the memory 1006 can be connected to the The processor 1003 is fine.
本实施例中的装置为网络设备时，该网络设备可以如图11所示，例如，该装置110为基站。该基站可应用于如图1所示的***中，执行上述方法实施例中网络设备的功能。基站110可包括一个或多个DU 1101和一个或多个CU 1102。CU1102可以与下一代核心网(NG core，NC)通信。所述DU 1101可以包括至少一个天线11011，至少一个射频单元11011，至少一个处理器11013和至少一个存储器11014。所述DU 1101部分主要用于射频信号的收发以及射频信号与基带信号的转换，以及部分基带处理。CU1102可以包括至少一个处理器11022和至少一个存储器11021。CU1102和DU1101之间可以通过接口进行通信，其中，控制面(control plane)接口可以为Fs-C，比如F1-C，用户面(user plane)接口可以为Fs-U，比如F1-U。When the device in this embodiment is a network device, the network device may be as shown in FIG. 11, for example, the device 110 is a base station. The base station can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiment. The base station 110 may include one or more DU 1101 and one or more CU 1102. CU1102 can communicate with the next-generation core network (NG core, NC). The DU 1101 may include at least one antenna 11011, at least one radio frequency unit 11011, at least one processor 11013, and at least one memory 11014. The DU 1101 part is mainly used for the transmission and reception of radio frequency signals, the conversion of radio frequency signals and baseband signals, and part of baseband processing. The CU1102 may include at least one processor 11022 and at least one memory 11021. CU1102 and DU1101 can communicate through interfaces, where the control plane interface can be Fs-C, such as F1-C, and the user plane interface can be Fs-U, such as F1-U.
所述CU 1102部分主要用于进行基带处理，对基站进行控制等。所述DU 1101与CU1102可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。所述CU 1102为基站的控制中心，也可以称为处理单元，主要用于完成基带处理功能。例如所述CU 1102可以用于控制基站执行上述方法实施例中关于网络设备的操作流程。The CU 1102 part is mainly used to perform baseband processing, control the base station, and so on. The DU 1101 and the CU1102 may be physically set together, or may be physically separated, that is, a distributed base station. The CU 1102 is the control center of the base station, which may also be referred to as a processing unit, and is mainly used to complete the baseband processing function. For example, the CU 1102 may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
具体的，CU和DU上的基带处理可以根据无线网络的协议层划分，例如分组数据汇聚层协议(packet data convergence protocol，PDCP)层及以上协议层的功能设置在CU，PDCP以下的协议层，例如无线链路控制(radio link control，RLC)层和介质接入控制(medium access control，MAC)层等的功能设置在DU。又例如，CU实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能，DU实现无线链路控制(radio link control，RLC)、MAC和物理(physical，PHY)层的功能。Specifically, the baseband processing on the CU and DU can be divided according to the protocol layer of the wireless network, for example, the packet data convergence protocol (PDCP) layer and the functions of the above protocol layers are set in the CU, the protocol layer below PDCP, For example, functions such as the radio link control (RLC) layer and the medium access control (MAC) layer are set in the DU. For another example, CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions, and DU implements radio link control (radio link control, RLC), MAC and physical functions. The function of the (physical, PHY) layer.
此外，可选的，基站110可以包括一个或多个射频单元(RU)，一个或多个DU和一个或多个CU。其中，DU可以包括至少一个处理器11013和至少一个存储器11014，RU可以包括至少一个天线11011和至少一个射频单元11011，CU可以包括至少一个处理器11022和至少一个存储器11021。In addition, optionally, the base station 110 may include one or more radio frequency units (RU), one or more DUs, and one or more CUs. The DU may include at least one processor 11013 and at least one memory 11014, the RU may include at least one antenna 11011 and at least one radio frequency unit 11011, and the CU may include at least one processor 11022 and at least one memory 11021.
例如，在一种实现方式中，处理器11013用于执行图3中网络设备侧的处理步骤。射频单元11011，用于执行图3中的步骤301和302中的收发操作。For example, in an implementation manner, the processor 11013 is configured to execute the processing steps on the network device side in FIG. 3. The radio frequency unit 11011 is used to perform the receiving and sending operations in steps 301 and 302 in FIG. 3.
在一个实例中，所述CU1102可以由一个或多个单板构成，多个单板可以共同支持单一接入指示的无线接入网(如5G网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述存储器11021和处理器11022可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。所述DU1101可以由一个或多个单板构成，多个单板可以共同支持单一接入指示的无线接入网(如5G网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述存储器11014和处理器11013可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。In an example, the CU1102 may be composed of one or more single boards, and multiple single boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or may respectively support wireless access networks of different access standards. Access network (such as LTE network, 5G network or other network). The memory 11021 and the processor 11022 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board. The DU1101 can be composed of one or more single boards. Multiple single boards can jointly support a wireless access network with a single access indication (such as a 5G network), and can also support wireless access networks with different access standards (such as a 5G network). LTE network, 5G network or other network). The memory 11014 and the processor 11013 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.
应理解，处理器可以是集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。It should be understood that the processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method embodiments may be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed 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, registers. 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.
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)， 其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchronous link DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。It can be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), and 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 link dynamic random access memory (synchronous link DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).
本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。In this application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects before and after are in an "or" relationship. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a). For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本申请的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。It should be understood that “one embodiment” or “an embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Therefore, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application. The implementation process constitutes any limitation.
在本说明书中使用的术语“部件”、“模块”、“***”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如，部件可以是但不限于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示，在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中，部件可位于一个计算机上和/或分布在2个或更多个计算机之间。此外，这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地***、分布式***和/或网络间的另一部件交互的二个部件的数据，例如通过信号与其它***交互的互联网)的信号通过本地和/或远程进程来通信。The terms "component", "module", "system", etc. used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and/or a computer running on a processor. Through the illustration, both the application running on the computing device and the computing device can be components. One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed among two or more computers. In addition, these components can be executed from various computer readable media having various data structures stored thereon. The component can be based on, for example, a signal having one or more data packets (e.g. data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through a signal) Communicate through local and/or remote processes.
还应理解，本文中涉及的第一、第二以及各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围。It should also be understood that the first, second, and various numerical numbers involved in this specification are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application.
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。其中，单独存在A或B，并不限定A或B的数量。以单独存在A为例，可以理解为具有一个或多个A。It should be understood that the term "and/or" in this text is only an association relationship describing the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, and both A and B exist. , There are three cases of B alone. Among them, the presence of A or B alone does not limit the number of A or B. Taking the existence of A alone as an example, it can be understood as having one or more A.
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.
在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology 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 disks or optical disks and other media that can store program codes. .
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (29)

  1. 一种波束失败恢复的方法，其特征在于，包括：A method for beam failure recovery, which is characterized in that it includes:
    终端在与网络设备之间的第一发送波束的波束失败，且未发现第二发送波束的情况下，接收触发消息，所述第二发送波束为所述网络设备能够与所述终端通信的发送波束；The terminal receives a trigger message when the beam of the first transmission beam between the network device and the network device fails and the second transmission beam is not found, and the second transmission beam is a transmission that the network device can communicate with the terminal. Beam
    所述终端根据所述触发消息，接收来自所述网络设备的多个参考信号，所述多个参考信号用于确定所述第二发送波束。The terminal receives multiple reference signals from the network device according to the trigger message, where the multiple reference signals are used to determine the second transmission beam.
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：The method according to claim 1, wherein the method further comprises:
    所述终端发送媒体介入控制控制单元MAC CE，所述MAC CE用于指示所述终端与所述网络设备之间的第一发送波束的波束失败，且未发现所述第二发送波束；The terminal sends a media intervention control control unit MAC CE, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device fails, and the second transmission beam is not found;
    所述终端接收所述MAC CE的响应消息，所述MAC CE的响应消息用于指示所述网络设备接收到所述MAC CE；The terminal receives a response message of the MAC CE, where the response message of the MAC CE is used to indicate that the network device receives the MAC CE;
    其中，所述终端在与网络设备之间的第一发送波束的波束失败，且未发现第二发送波束的情况下，接收触发消息包括：Wherein, in the case where the beam of the first transmission beam between the terminal and the network device fails and the second transmission beam is not found, receiving the trigger message includes:
    所述终端在接收到所述MAC CE的响应消息之后，接收所述触发消息。After receiving the response message of the MAC CE, the terminal receives the trigger message.
  3. 根据权利要求1所述的方法，其特征在于，所述方法还包括：The method according to claim 1, wherein the method further comprises:
    所述终端发送MAC CE，所述MAC CE用于指示所述终端在与所述网络设备之间的所述第一发送波束的波束失败，且未发现所述第二发送波束；The terminal sends a MAC CE, where the MAC CE is used to indicate that the first transmission beam between the terminal and the network device fails, and the second transmission beam is not found;
    其中，所述终端在与网络设备之间的所述第一发送波束的波束失败，且未发现所述第二发送波束的情况下，接收触发消息包括：Wherein, in the case where the beam of the first transmission beam between the terminal and the network device fails and the second transmission beam is not found, receiving the trigger message includes:
    所述终端在与网络设备之间的所述第一发送波束的波束失败，且未发现所述第二发送波束的情况下，接收所述MAC CE的响应消息，所述MAC CE的响应消息用于指示所述网络设备接收到所述MAC CE，且所述MAC CE的响应消息包括所述触发消息。When the first transmission beam between the terminal and the network device fails and the second transmission beam is not found, the terminal receives the response message of the MAC CE, and the response message of the MAC CE is used Indicating that the network device has received the MAC CE, and the response message of the MAC CE includes the trigger message.
  4. 根据权利要求2或3所述的方法，其特征在于，所述方法还包括：The method according to claim 2 or 3, wherein the method further comprises:
    所述终端在接收到所述MAC CE的响应消息时，停止检测对应于所述第一发送波束的参考信号。When receiving the response message of the MAC CE, the terminal stops detecting the reference signal corresponding to the first transmission beam.
  5. 根据权利要求2或3所述的方法，其特征在于，所述方法还包括：The method according to claim 2 or 3, wherein the method further comprises:
    所述终端在接收到所述MAC CE的响应消息时，停止向上层发送指示信息，所述指示信息用于指示所述第一发送波束的波束失败。When receiving the response message of the MAC CE, the terminal stops sending indication information to the upper layer, where the indication information is used to indicate that the beam of the first transmission beam fails.
  6. 根据权利要求2或3所述的方法，其特征在于，所述方法还包括：The method according to claim 2 or 3, wherein the method further comprises:
    所述终端在接收到所述MAC CE的响应消息时，停止或不启动波束失败计时器的计时。When receiving the response message of the MAC CE, the terminal stops or does not start the counting of the beam failure timer.
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1 to 6, wherein the method further comprises:
    所述终端采用所述第二发送波束的所述网络设备进行通信。The terminal uses the network device of the second transmission beam to communicate.
  8. 一种波束失败恢复的方法，其特征在于，包括：A method for beam failure recovery, which is characterized in that it includes:
    网络设备在与终端之间的第一发送波束的波束失败，且所述终端未发现第二发送波束的情况下，向所述终端发送触发消息，所述触发消息用于触发所述终端检测参考信号，其中，所述第二发送波束为所述网络设备能够与所述终端通信的发送波束；When the first transmission beam between the network device and the terminal fails, and the terminal does not find the second transmission beam, the network device sends a trigger message to the terminal, and the trigger message is used to trigger the terminal to detect the reference Signal, wherein the second transmission beam is a transmission beam that the network device can communicate with the terminal;
    所述网络设备向所述终端发送多个参考信号，所述多个参考信号用于确定所述第二发送波束。The network device sends multiple reference signals to the terminal, and the multiple reference signals are used to determine the second transmission beam.
  9. 根据权利要求8所述的方法，其特征在于，在所述网络设备向所述终端发送触发消息之前，所述方法还包括：The method according to claim 8, wherein before the network device sends a trigger message to the terminal, the method further comprises:
    所述网络设备接收来自所述终端的媒体介入控制控制单元MAC CE，所述MAC CE用于指示所述终端与所述网络设备之间的第一发送波束的波束失败，且未发现所述第二发送波束；The network device receives the media intervention control control unit MAC CE from the terminal, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device fails, and the first transmission beam is not found. 2. Transmit beam;
    所述网络设备向所述终端发送所述MAC CE的响应消息，所述MAC CE的响应消息用于指示所述网络设备接收到所述MAC CE。The network device sends a response message of the MAC CE to the terminal, where the response message of the MAC CE is used to indicate that the network device receives the MAC CE.
  10. 根据权利要求8所述的方法，其特征在于，所述方法还包括：The method according to claim 8, wherein the method further comprises:
    所述网络设备接收来自所述终端的MAC CE，所述MAC CE用于指示所述终端与所述网络设备之间的第一发送波束的波束失败，且未发现所述第二发送波束；The network device receives the MAC CE from the terminal, where the MAC CE is used to indicate that the beam of the first transmission beam between the terminal and the network device fails, and the second transmission beam is not found;
    其中，所述网络设备在与终端之间的第一发送波束的波束失败，且所述终端未发现第二发送波束的情况下，向所述终端发送触发消息包括：Wherein, in the case that the first transmission beam between the network device and the terminal fails, and the terminal does not find the second transmission beam, sending a trigger message to the terminal includes:
    所述网络设备在接收到所述MAC CE之后，向所述终端发送所述MAC CE的响应消息，所述MAC CE的响应消息用于指示所述网络设备接收到所述MAC CE，且所述MACCE的响应消息包括所述触发消息。After receiving the MAC CE, the network device sends a response message of the MAC CE to the terminal, where the response message of the MAC CE is used to indicate that the network device receives the MAC CE, and the The response message of the MACCE includes the trigger message.
  11. 根据权利要求8至10中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 8 to 10, wherein the method further comprises:
    所述网络设备通过所述第二发送波束与所述终端进行通信。The network device communicates with the terminal through the second transmission beam.
  12. 一种波束失败恢复的装置，其特征在于，包括：A device for beam failure recovery, which is characterized in that it comprises:
    处理模块，用于在与网络设备之间的第一发送波束的波束失败，且未发现第二发送波束的情况下，通过收发模块接收触发消息，所述第二发送波束为所述网络设备能够与终端通信的发送波束；The processing module is configured to receive a trigger message through the transceiver module when the beam of the first transmission beam with the network device fails and the second transmission beam is not found, and the second transmission beam is capable of the network device The transmit beam for communicating with the terminal;
    所述处理模块，还用于根据所述触发消息，通过所述收发模块接收来自所述网络设备的多个参考信号，所述多个参考信号用于确定所述第二发送波束。The processing module is further configured to receive multiple reference signals from the network device through the transceiver module according to the trigger message, and the multiple reference signals are used to determine the second transmission beam.
  13. 根据权利要求12所述的装置，其特征在于，所述收发模块，还用于发送媒体介入控制控制单元MAC CE，所述MAC CE用于指示所述终端与所述网络设备之间的第一发送波束的波束失败，且未发现所述第二发送波束；The device according to claim 12, wherein the transceiver module is further configured to send a media intervention control control unit MAC CE, and the MAC CE is used to indicate the first communication between the terminal and the network device. The beam of the transmission beam fails, and the second transmission beam is not found;
    所述收发模块，还用于接收所述MAC CE的响应消息，所述MAC CE的响应消息用于指示所述网络设备接收到所述MAC CE；The transceiver module is further configured to receive a response message of the MAC CE, and the response message of the MAC CE is used to indicate that the network device receives the MAC CE;
    其中，所述处理模块具体用于：Wherein, the processing module is specifically used for:
    在接收到所述MAC CE的响应消息之后，通过所述收发模块接收所述触发消息。After receiving the response message of the MAC CE, the trigger message is received through the transceiver module.
  14. 根据权利要求12所述的装置，其特征在于，所述收发模块，还用于发送MAC CE，所述MAC CE用于指示所述终端在与所述网络设备之间的所述第一发送波束的波束失败，且未发现所述第二发送波束；The apparatus according to claim 12, wherein the transceiver module is further configured to send a MAC CE, and the MAC CE is used to indicate that the terminal is in the first transmission beam between the terminal and the network device. The beam of failed, and the second transmission beam is not found;
    其中，所述处理模块具体用于：Wherein, the processing module is specifically used for:
    在与网络设备之间的所述第一发送波束的波束失败，且未发现所述第二发送波束的情况下，通过所述收发模块接收所述MAC CE的响应消息，所述MAC CE的响应消息用于指示所述网络设备接收到所述MAC CE，且所述MAC CE的响应消息包括所述触发消息。When the beam of the first transmission beam with the network device fails and the second transmission beam is not found, the response message of the MAC CE is received through the transceiver module, and the response of the MAC CE is The message is used to indicate that the network device receives the MAC CE, and the response message of the MAC CE includes the trigger message.
  15. 根据权利要求13或14所述的装置，其特征在于，所述处理模块，还用于在接收到所述MAC CE的响应消息时，停止检测对应于所述第一发送波束的参考信号。The apparatus according to claim 13 or 14, wherein the processing module is further configured to stop detecting the reference signal corresponding to the first transmission beam when receiving the response message of the MAC CE.
  16. 根据权利要求13或14所述的装置，其特征在于，所述处理模块，还用于在接收到所述MAC CE的响应消息时，停止向上层发送指示信息，所述指示信息用于指示所述第一发送波束的波束失败。The device according to claim 13 or 14, wherein the processing module is further configured to stop sending instruction information to the upper layer when receiving a response message from the MAC CE, and the instruction information is used to indicate The beam of the first transmission beam fails.
  17. 根据权利要求13或14所述的装置，其特征在于，所述处理模块，还用于在接收到所述MAC CE的响应消息时，停止或不启动波束失败计时器的计时。The device according to claim 13 or 14, wherein the processing module is further configured to stop or not start the timing of the beam failure timer when the response message of the MAC CE is received.
  18. 根据权利要求12至17中任一项所述的装置，其特征在于，所述收发模块，还用于与采用所述第二发送波束的所述网络设备进行通信。The apparatus according to any one of claims 12 to 17, wherein the transceiver module is further configured to communicate with the network device that uses the second transmission beam.
  19. 一种波束失败恢复的装置，其特征在于，包括：A device for beam failure recovery, which is characterized in that it comprises:
    处理模块，用于在与终端之间的第一发送波束的波束失败，且所述终端未发现第二发送波束的情况下，通过收发模块向所述终端发送触发消息，所述触发消息用于触发所述终端检测参考信号，其中，所述第二发送波束为网络设备能够与所述终端通信的发送波束；The processing module is configured to send a trigger message to the terminal through the transceiver module when the beam of the first transmission beam with the terminal fails and the terminal does not find the second transmission beam, and the trigger message is used for Trigger the terminal to detect the reference signal, where the second transmission beam is a transmission beam that the network device can communicate with the terminal;
    所述收发模块，还用于向所述终端发送多个参考信号，所述多个参考信号用于确定所述第二发送波束。The transceiver module is further configured to send multiple reference signals to the terminal, and the multiple reference signals are used to determine the second transmission beam.
  20. 根据权利要求19所述的装置，其特征在于，所述收发模块，还用于接收来自所述终端的媒体介入控制控制单元MAC CE，所述MAC CE用于指示所述终端与所述网络设备之间的第一发送波束的波束失败，且未发现所述第二发送波束；The apparatus according to claim 19, wherein the transceiver module is further configured to receive a media intervention control unit MAC CE from the terminal, and the MAC CE is used to indicate the terminal and the network device The beam of the first transmission beam in between failed, and the second transmission beam is not found;
    所述收发模块，还用于向所述终端发送所述MAC CE的响应消息，所述MAC CE的响应消息用于指示所述网络设备接收到所述MAC CE。The transceiver module is further configured to send a response message of the MAC CE to the terminal, where the response message of the MAC CE is used to indicate that the network device receives the MAC CE.
  21. 根据权利要求19所述的装置，其特征在于，所述收发模块，还用于接收来自所述终端的MAC CE，所述MAC CE用于指示所述终端与所述网络设备之间的第一发送波束的波束失败，且未发现所述第二发送波束；The apparatus according to claim 19, wherein the transceiver module is further configured to receive a MAC CE from the terminal, and the MAC CE is used to indicate the first communication between the terminal and the network device. The beam of the transmission beam fails, and the second transmission beam is not found;
    其中，所述处理模块具体用于：Wherein, the processing module is specifically used for:
    在接收到所述MAC CE之后，通过所述收发模块向所述终端发送所述MAC CE的响应消息，所述MAC CE的响应消息用于指示所述网络设备接收到所述MAC CE，且所述MAC CE的响应消息包括所述触发消息。After receiving the MAC CE, send a response message of the MAC CE to the terminal through the transceiver module. The response message of the MAC CE is used to indicate that the network device has received the MAC CE, and The response message of the MAC CE includes the trigger message.
  22. 根据权利要求19至21中任一项所述的装置，其特征在于，所述收发模块，还用于通过所述第二发送波束与所述终端进行通信。The apparatus according to any one of claims 19 to 21, wherein the transceiver module is further configured to communicate with the terminal through the second transmitting beam.
  23. 一种通信装置，其特征在于，包括处理器、存储器和收发器；A communication device, characterized by comprising a processor, a memory, and a transceiver;
    所述收发器，用于接收信号或者发送信号；The transceiver is used to receive signals or send signals;
    所述存储器，用于存储程序代码；The memory is used to store program code;
    所述处理器，用于从所述存储器调用所述程序代码执行如权利要求1至7中任一项所述的方法或权利要求8至11中任一项所述的方法。The processor is configured to call the program code from the memory to execute the method according to any one of claims 1 to 7 or the method according to any one of claims 8 to 11.
  24. 一种通信装置，其特征在于，包括：处理器，当所述处理器调用存储器中的计算机程序时，如权利要求1至7中任一项所述的方法或权利要求8至11中任一项所述的方法被执行。A communication device, comprising: a processor, when the processor calls the computer program in the memory, the method according to any one of claims 1 to 7 or any one of claims 8 to 11 The method described in the item is executed.
  25. 一种通信装置，其特征在于，包括：存储器和处理器；所述存储器用于存储计算机程序，当所述处理器调用所述存储器中的计算机程序时，所述通信装置执行如权利要求 1至7中任一项所述的方法或权利要求8至11中任一项所述的方法。A communication device, characterized by comprising: a memory and a processor; the memory is used to store a computer program, and when the processor calls the computer program in the memory, the communication device executes claims 1 to The method of any one of 7 or the method of any one of claims 8-11.
  26. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质包括计算机程序或指令，当所述计算机程序或指令在计算机上运行时，使得计算机执行如权利要求1至7中任一项所述的方法或权利要求8至11中任一项所述的方法。A computer-readable storage medium, wherein the computer-readable storage medium includes a computer program or instruction, and when the computer program or instruction runs on a computer, the computer executes any one of claims 1 to 7 Or the method of any one of claims 8 to 11.
  27. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机程序或指令，当所述计算机程序或指令在计算机上运行时，使得计算机执行如权利要求1至7中任一项所述的方法或权利要求8至11中任一项所述的方法。A computer program product, characterized in that the computer program product comprises a computer program or instruction, when the computer program or instruction is run on a computer, the computer is caused to execute any one of claims 1 to 7 The method or the method of any one of claims 8-11.
  28. 一种芯片，其特征在于，处理器和通信接口，所述处理器用于执行如权利要求1至7中任一项所述的方法或权利要求8至11中任一项所述的方法。A chip characterized by a processor and a communication interface, and the processor is configured to execute the method according to any one of claims 1 to 7 or the method according to any one of claims 8 to 11.
  29. 一种芯片，包括处理器、存储器和通信接口，所述存储器中存储有计算机程序，所述处理器用于执行所述计算机程序以实现如权利要求1至7中任一项所述的方法或权利要求8至11中任一项所述的方法。A chip comprising a processor, a memory, and a communication interface, wherein a computer program is stored in the memory, and the processor is used to execute the computer program to implement the method or right according to any one of claims 1 to 7 The method of any one of claims 8-11.
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