WO2021013138A1 - Procédé de communication de réseau sans fil et dispositif de communication - Google Patents

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

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Publication number
WO2021013138A1
WO2021013138A1 PCT/CN2020/103141 CN2020103141W WO2021013138A1 WO 2021013138 A1 WO2021013138 A1 WO 2021013138A1 CN 2020103141 W CN2020103141 W CN 2020103141W WO 2021013138 A1 WO2021013138 A1 WO 2021013138A1
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Prior art keywords
communication device
qcl information
information
terminal device
qcl
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PCT/CN2020/103141
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English (en)
Chinese (zh)
Inventor
刘建琴
薛丽霞
戴晶
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华为技术有限公司
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Publication of WO2021013138A1 publication Critical patent/WO2021013138A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams

Definitions

  • This application relates to the field of communication, and more specifically, to a wireless network communication method and communication device.
  • network equipment and terminal equipment in communication systems such as the fifth generation (5G) system can perform signal transmission based on beamforming technology, thereby overcoming the large-scale signal transmission process.
  • the propagation loss can be performed by network equipment and terminal equipment in communication systems such as the fifth generation (5G) system.
  • the network equipment can usually send accurate signals to the terminal equipment.
  • Co-location (quasi-co-location, QCL) information according to the QCL information, the terminal device can determine the information of the receiving beam used to receive the current signal or channel.
  • the network equipment side can only turn on the beams required by the service terminal and turn off other beams that are not needed. Since the terminal device still needs to receive the signal with reference to the QCL information configured before, one QCL corresponds to one beam, so when configuring When the beam corresponding to the QCL information is turned off, the terminal device may not receive the current signal or channel correctly, and the accuracy of signal reception is poor.
  • the present application provides a wireless network communication method and communication device, which can improve the accuracy of signal reception.
  • a wireless network communication method including: a first communication device determines first quasi-co-located QCL information of a target signal; when the first QCL information fails, the first communication device determines The information receives the target signal.
  • the first communication device when the first QCL information of the target signal fails, can receive the target signal according to the second QCL information, so that the first communication device configured for the first communication device on the second communication device.
  • the QCL information fails, that is, when the second communication device side turns off some beams, such as the beam corresponding to the reference signal resource index in the first QCL information or the beam used to transmit the target signal, the first communication device can re-determine the receiving target Signal QCL information and receiving behavior, so as to ensure the accuracy of target signal reception.
  • the first communication device in the embodiment of the present application may be a terminal device or a chip device, for example, a chip device configured in the terminal device.
  • the second communication device in the embodiment of the present application may be a network device or a chip device, for example, a chip device configured in the network device.
  • the failure of the first QCL information can be understood as the inability of the terminal device to accurately receive the target signal according to the first QCL information, resulting in the first
  • the QCL information is invalid (that is, the terminal device cannot accurately receive the target signal according to the first QCL information) because the reference signal resource index used by the terminal device when receiving the target signal corresponds to the filter parameter reference of the receiving beam in the transceiver beam pair. Poor sex.
  • the reason for the failure of the first QCL information is that the network device side turns off some beams. For example, the network device turns off the transmit beams in the transmit and receive beam pair corresponding to the reference signal resource index in the first QCL information such that The filtering parameter of the receiving beam corresponding to the reference signal resource index no longer has reference value or has poor reference.
  • the network device turns off the beam for sending the target signal indicated by the first QCL information, that is, the network device does not use the beam for sending the target signal indicated by the first QCL information to send the target signal, and the terminal device The target signal is still received according to the beam used to send the target signal indicated in the first QCL information, resulting in that the terminal device cannot correctly receive the target signal.
  • beam may also be referred to as “reference signal resource”, and correspondingly, “beam index” may be referred to as “reference signal resource index”.
  • the QCL information may also be expressed as "beam information.”
  • the second QCL information is predefined.
  • the target signal is a periodic channel state information reference signal
  • the second QCL information includes any one of the following information: the first communication device received by the first communication device An index of the synchronization signal block SSB; or, the reference signal resource index in the first measurement result of the first communication device.
  • the index of the first synchronization signal block SSB corresponds to the filter parameter when the terminal device measures the first synchronization signal block SSB.
  • the synchronization signal block SSB is the basic signal for terminal equipment to access the cell. Therefore, the beam scanning of the synchronization signal block SSB is usually not easily turned off. When the beam of the network device is suddenly turned off, the terminal device can refer to the previous The target signal is received by the receiving filter parameter corresponding to the first synchronization signal block index to ensure that the terminal device can correctly receive the target signal.
  • the target signal is a physical downlink control channel PDCCH or a semi-persistent scheduling channel state information reference signal
  • the second QCL information includes any one of the following information: 2.
  • the first synchronization signal block SSB is a synchronization signal block associated with the physical random access channel PRACH sent by the first communication device, or is the first synchronization signal block A synchronization signal block reported by the communication device to the second communication device.
  • the first synchronization signal block SSB is a synchronization signal block associated with the physical random access channel PRACH sent by the first communication device
  • the first The synchronization signal block SSB is the synchronization signal block associated with the physical random access channel PRACH that the first communication device recently transmitted.
  • the second QCL information includes the index of the synchronization signal block associated with the PRACH last transmitted by the first communication device, for example, the terminal device, and the terminal equipment can receive filter parameters corresponding to the index of the synchronization signal block associated with the PRACH last transmitted by the terminal device. Receiving the target signal can improve the accuracy of the target signal reception.
  • the first measurement result is a channel quality measurement result for a first reference signal resource set, or a channel quality measurement result reported by the first communication device The measurement result corresponding to the preset reference signal resource index.
  • the method further includes: when the first communication device receives the instruction information sent by the second communication device, the first communication device determines the first QCL information Invalid, wherein the indication information is used to indicate that the first QCL information is invalid, and/or is used to indicate the second QCL information.
  • the indication information used to indicate the failure of the first QCL information and the indication information used to indicate the second QCL information may be carried in the same message, or may be carried in different messages.
  • the indication information used to indicate the failure of the first QCL information and the indication information used to indicate the second QCL information may be sent simultaneously or separately.
  • the indication information is carried in the downlink control information DCI.
  • the first QCL information or the second QCL information is configured in any of the following ways: radio resource control RRC signaling; or, RRC signaling and media Intervention control unit MAC CE signaling; or RRC signaling and downlink control information DCI signaling.
  • the method further includes: the first communication The device receives the second QCL information sent by the second communication device.
  • the second communication device such as a network device
  • the second communication device can reconfigure the second QCL information for the first communication device, such as a terminal device, so that when the network device turns off some beams, the terminal device can ensure that the terminal device can be based on other effective
  • the QCL corresponding to the beam assumes that the target signal is received, thereby ensuring the accuracy of the target signal reception.
  • the second QCL information is carried in downlink control information DCI signaling or media intervention control unit MAC CE signaling.
  • a wireless network communication method including: when the first QCL information of the target signal is invalid, the first communication device determines the second QCL information; the first communication device receives the second QCL information according to the second QCL information. The target signal.
  • the first communication device when the first QCL information of the target signal fails, can determine the second QCL information, and receive the target signal according to the second QCL information, so that the second communication device can be
  • the first QCL information configured by the first communication device fails, that is, when the second communication device side turns off some beams, such as the beam corresponding to the reference signal resource index in the first QCL information or the beam used to transmit the target signal, it can The QCL information and receiving behavior of the first communication device receiving the target signal are re-determined, so as to ensure the accuracy of receiving the target signal.
  • the second QCL information is predefined.
  • the target signal is a periodic channel state information reference signal
  • the second QCL information includes any one of the following information: the first communication device received by the first communication device An index of the synchronization signal block SSB; or, the reference signal resource index in the first measurement result of the first communication device.
  • the target signal is a physical downlink control channel PDCCH or a semi-persistent scheduling channel state information reference signal
  • the second QCL information includes any one of the following information: One piece of QCL information other than the first QCL information in the candidate QCL information set configured by the second communication device for the first communication device, wherein the candidate QCL information set includes the first QCL information; or , The index of the first synchronization signal block SSB received by the first communication device; or, the reference signal resource index in the first measurement result of the first communication device.
  • the first synchronization signal block SSB is a synchronization signal block associated with the physical random access channel PRACH sent by the first communication device, or is the first synchronization signal block.
  • the first synchronization signal block SSB is a synchronization signal block associated with the physical random access channel PRACH sent by the first communication device
  • the first The synchronization signal block SSB is the synchronization signal block associated with the physical random access channel PRACH that the first communication device recently transmitted.
  • the second QCL information includes the index of the synchronization signal block associated with the PRACH last transmitted by the first communication device, for example, the terminal device, and the terminal equipment can receive filter parameters corresponding to the index of the synchronization signal block associated with the PRACH last transmitted by the terminal device. Receiving the target signal can improve the accuracy of the target signal reception.
  • the first measurement result is a measurement result of channel quality measurement for a first reference signal resource set, or a channel quality measurement result reported by the first communication device The measurement result corresponding to the preset reference signal resource index.
  • the method further includes: when the first communication device receives the instruction information sent by the second communication device, the first communication device determines the first QCL information Invalid, wherein the indication information is used to indicate that the first QCL information is invalid, and/or is used to indicate the second QCL information.
  • the indication information used to indicate the failure of the first QCL information and the indication information used to indicate the second QCL information may be carried in the same message or in different messages.
  • the indication information used to indicate the failure of the first QCL information and the indication information used to indicate the second QCL information may be sent simultaneously or separately.
  • the indication information is carried in the downlink control information DCI.
  • the first QCL information or the second QCL information is configured in any of the following ways: radio resource control RRC signaling; or, RRC signaling and media Intervention control unit MAC CE signaling; or RRC signaling and downlink control information DCI signaling.
  • the method further includes: receiving, by the first communication device, the second communication device sent by the second communication device. QCL information.
  • the second communication device such as a network device
  • the second communication device can reconfigure the second QCL information for the first communication device, such as a terminal device, so that when the network device turns off some beams, the terminal device can ensure that the terminal device can be based on other effective
  • the QCL corresponding to the beam assumes that the target signal is received, thereby ensuring the accuracy of the target signal reception.
  • the second QCL information is carried in downlink control information DCI signaling or media intervention control unit MAC CE signaling.
  • a wireless network communication method including: a second communication device configures a first communication device with first quasi co-located QCL information of a target signal; when the first QCL information fails, the second communication The device instructs the first communication device to receive the target signal according to the second QCL information.
  • the first communication device when the first QCL information of the target signal fails, can receive the target signal according to the second QCL information, so that the QCL information configured by the second communication device fails, that is, When the second communication device side turns off certain beams, such as the beam corresponding to the reference signal resource index in the first QCL information or the beam used to transmit the target signal, it can re-determine the QCL information and reception of the target signal received by the first communication device Behavior to ensure the accuracy of target signal reception.
  • the second QCL information is predefined.
  • the target signal is a periodic channel state information reference signal
  • the second QCL information includes any one of the following information: An index of a synchronization signal block SSB; or, an index of a reference signal in the first measurement result of the first communication device.
  • the index of the first synchronization signal block SSB corresponds to the filter parameter when the terminal device measures the first synchronization signal block SSB.
  • the synchronization signal block SSB is the basic signal for terminal equipment to access the cell. Therefore, the beam scanning of the synchronization signal block SSB is usually not easily turned off. When the beam of the network device is suddenly turned off, the terminal device can refer to the previous The target signal is received by the receiving filter parameter corresponding to the first synchronization signal block index to ensure that the terminal device can correctly receive the target signal.
  • the target signal is a physical downlink control channel PDCCH or a semi-persistent scheduling channel state information reference signal
  • the second QCL information includes any one of the following information: One piece of QCL information other than the first QCL information in the candidate QCL information set configured by the second communication device for the first communication device, wherein the candidate QCL information set includes the first QCL information; or , The index of the first synchronization signal block SSB received by the first communication device; or, the index of the reference signal in the first measurement result of the first communication device.
  • the first synchronization signal block SSB is a synchronization signal block associated with the physical random access channel PRACH sent by the first communication device, or is the first synchronization signal block A synchronization signal block reported by the communication device to the second communication device.
  • the first synchronization signal block SSB is a synchronization signal block associated with the physical random access channel PRACH sent by the first communication device
  • the first The synchronization signal block SSB is the synchronization signal block associated with the physical random access channel PRACH that the first communication device recently transmitted.
  • the second QCL information includes the index of the synchronization signal block associated with the PRACH last transmitted by the first communication device, for example, the terminal device, and the terminal equipment can receive filter parameters corresponding to the index of the synchronization signal block associated with the PRACH last transmitted by the terminal device. Receiving the target signal can improve the accuracy of the target signal reception.
  • the first measurement result is a channel quality measurement result for a first reference signal resource set, or a channel quality measurement result reported by the first communication device The measurement result corresponding to the preset reference signal resource index.
  • the second communication device indicating second QCL information to the first communication device includes: the second communication device sending an instruction to the first communication device Information, the indication information is used to indicate that the first QCL information is invalid, and/or used to indicate the second QCL information.
  • the indication information is carried in the downlink control information DCI.
  • the first QCL information or the second QCL information is configured in any of the following ways: radio resource control RRC signaling; or, RRC signaling and media Intervention control unit MAC CE signaling; or RRC signaling and downlink control information DCI signaling.
  • the second communication device indicating second QCL information to the first communication device includes: the second communication device sends all the QCL information to the first communication device The second QCL information.
  • the second communication device such as a network device
  • the second communication device can reconfigure the second QCL information for the first communication device, such as a terminal device, so that when the network device turns off some beams, the terminal device can ensure that the terminal device can be based on other effective
  • the QCL corresponding to the beam assumes that the target signal is received, thereby ensuring the accuracy of the target signal reception.
  • the second QCL information is carried in downlink control information DCI signaling or media intervention control unit MAC CE signaling.
  • a communication device which includes modules or units for executing the methods/operations/steps/actions described in the first aspect or any one of the possible implementations of the first aspect; Or the device includes a module or unit for performing one-to-one correspondence of the method/operation/step/action described in the method in the second aspect or any one of the possible implementations of the second aspect.
  • the module or unit may be a hardware circuit , It can also be software, or it can be realized by hardware circuit combined with software.
  • the communication device may be a terminal device or a chip device
  • the chip device may be a chip device configured in the terminal device.
  • a communication device which includes modules or units for executing the methods/operations/steps/actions described in the methods/operations/steps/actions in the third aspect or any one of the possible implementation manners of the third aspect,
  • the module or unit may be a hardware circuit, software, or a hardware circuit combined with software.
  • the communication device may be a network device or a chip device
  • the chip device may be a chip device configured in the network device.
  • a communication device may be the first communication device in the above method design.
  • the communication device is a terminal device or a chip set in the terminal device.
  • the communication device includes a processor, coupled with a memory, and can be used to execute instructions in the memory to implement the method executed by the first communication device in the first aspect and any one of its possible implementation manners, or the second aspect and A method executed by the first communication device in any one of its possible implementation manners.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication interface may be an input/output interface.
  • a communication device may be the second communication device in the above method design.
  • the second communication device is a network device, or a chip set in the network device.
  • the communication device includes a processor, coupled with a memory, and can be used to execute instructions in the memory to implement the method executed by the second communication device in the third aspect and any one of its possible implementation manners.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the communication interface may be a transceiver or an input/output interface.
  • the communication interface may be an input/output interface.
  • a communication device in an eighth aspect, includes a transceiver, a processor, and a memory.
  • the processor is used to control the transceiver to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program from the memory, so that the communication device executes the first aspect or any possible implementation of the first aspect Or make the communication device execute the method in the second aspect or any one of the possible implementation manners of the second aspect.
  • a communication device in a ninth aspect, includes a transceiver, a processor, and a memory.
  • the processor is used to control the transceiver to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program from the memory, so that the communication device executes the third aspect or any possible implementation of the third aspect The method in the way.
  • a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium.
  • the computer can execute the first aspect or any one of the first aspects. Or make the computer execute the method described in the second aspect or any one of the possible implementation manners of the second aspect.
  • a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium.
  • the instructions run on a computer, the computer executes the third aspect or any one of the third aspects Possible implementations described in the method.
  • a twelfth aspect provides a computer program product containing instructions, which when the computer program product runs on a computer, causes the computer to execute the method described in the first aspect or any one of the possible implementations of the first aspect; or The computer is caused to execute the method described in the second aspect or any one of the possible implementation manners of the second aspect.
  • a thirteenth aspect provides a computer program product containing instructions, when the computer program product runs on a computer, the computer executes the method described in the third aspect or any one of the possible implementation manners of the third aspect.
  • a communication system including the first communication device and the second communication device mentioned above.
  • the first communication device is a terminal device or a chip device configured in the terminal device
  • the second communication device is a network device or a chip device configured in the network device.
  • Figure 1 is a schematic diagram of an application scenario of an embodiment of the present application
  • Figure 2 is a schematic diagram of a downlink signal transmission process
  • FIG. 3 is a schematic flowchart of a wireless network communication method according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a wireless network communication method according to another embodiment of the present application.
  • Figure 5 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a device provided by another embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by another 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
  • LTE frequency division duplex FDD
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • Fig. 1 shows a schematic diagram of an application scenario of an embodiment of the present application.
  • the application scenario may include a network device 110 and a terminal device 120.
  • the network device 110 in the embodiment of the present application may be a device for communicating with the terminal device 120.
  • the network device 110 may be a base station for connecting the terminal device 120 to a radio access network (RAN).
  • RAN radio access network
  • the embodiment of the present application takes the network device 110 as a base station as an example for description.
  • a base station may sometimes be called an access network device or an access network node. It is understandable that in systems using different wireless access technologies, the names of devices with base station functions may be different.
  • the embodiments of the present application provide devices that provide wireless communication access functions for terminal equipment as a base station.
  • the network device 110 may be an evolved node B (eNB or eNodeB) in the long term evolution (LTE), or it may be the downlink in the fifth generation (5G) system of mobile communications.
  • the next generation node base station (gNB) can also be a wireless controller in the cloud radio access network (CRAN) scenario, or it can be a transmission and reception point (TRP),
  • the network device 110 may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a 5G network or a network device in a future evolved PLMN network, etc., which is not limited in the embodiment of the present application.
  • the network device 110 may be a macro base station or a micro base station.
  • the coverage of one network device 110 may include one cell or multiple cells.
  • the terminal device 120 in the embodiment of the present application may communicate with one or more core networks (core networks, CN) via an access network device.
  • the terminal device 120 may also be referred to as user equipment (UE), access terminal, terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless network equipment, User agent or user device.
  • UE user equipment
  • the terminal device 120 may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a smart phone, a wireless local loop (wireless local loop, WLL) station, a personal digital processing ( personal digital assistant, PDA), handheld devices with wireless communication capabilities, computing devices or other devices connected to wireless modems, in-vehicle devices, wearable devices, drone devices or the Internet of Things, terminals in the Internet of Vehicles, and future networks Any form of terminal, relay user equipment, or terminal in the future evolved public land mobile network (PLMN).
  • PLMN public land mobile network
  • the embodiment of the application does not limit this.
  • the terminal device 120 is the UE as an example for description.
  • the network device 110 and the terminal device 120 can transmit uplink and downlink signals through the transmission link between the two.
  • the transmission link from the network device 110 to the terminal device 120 can be called a downlink.
  • the terminal device 120 The transmission link to the network device 110 may be referred to as an uplink (uplink).
  • the network device 110 can send downlink data to the terminal device 120 via the downlink. Accordingly, the terminal device 120 receives the downlink data sent by the network device 110 via the downlink; the terminal device 120 can send uplink data to the network device 110 via the uplink. Accordingly, the network device 110 receives the uplink data sent by the terminal device 120 through the uplink.
  • the embodiments of the present application may be applied to a wireless communication system, such as a 5G system.
  • the terminal device 120 may include one or more terminal devices.
  • the terminal device 120 includes UE#1, UE#2, UE#3, UE#4, UE#5, and UE#6.
  • the number of terminal devices 120 shown in FIG. 1 is only exemplary. In some other embodiments, the number of terminal devices 120 may also be 1, 2, 4, 8, or even more. many.
  • the network device 110 and UE#1 ⁇ UE#6 can form a communication system.
  • UE#1 ⁇ UE#6 can send uplink information or data to the network device 110, and the network device 110 Need to receive uplink information or data sent by UE#1 ⁇ UE#6; network equipment 110 can send downlink information or data to UE#1 ⁇ UE#6, and UE#1 ⁇ UE#6 need to receive information or data sent by network equipment 110 to itself Downstream information or data.
  • some UEs in UE#1 to UE#6 can form a communication system.
  • UE#4 to UE#6 can form a communication system.
  • the network device 110 can communicate to UE#1 and UE#6. #2, UE#3, UE#5, etc.
  • UE#5 can also send downlink information or data to UE#4, UE#6, etc.; correspondingly, UE#4, UE#6 can send downlink information or data to UE #5 sends uplink information or data, UE#1, UE#2, UE#3, UE#5, etc. may also send uplink information or data to the network device 110.
  • the quality of the wireless signal will attenuate. This attenuation phenomenon is called "path-loss.”
  • the path loss will have a huge impact on the communication system, especially for the millimeter wave band (mmWave) communication system (such as 5G communication system), the signal attenuation caused by the high path loss characteristics of the millimeter wave may cause the system to malfunction. the work.
  • mmWave millimeter wave band
  • 5G communication system millimeter wave band
  • a signal transmission mechanism based on beamforming technology can be introduced.
  • the directivity of the beam can be used to effectively combat the path loss.
  • the beamforming signal can include broadcast Signals, synchronization signals, and UE-specific reference signals, etc.
  • FIG. 2 shows a schematic diagram of a signal transmission process based on beamforming technology.
  • the network device 110 can be equipped with a massive MIMO array. For example, 64, 128, 256, or 1024 antennas or other numbers of antennas can be configured.
  • Multi-antenna communication can improve wireless signal performance. Transmission quality.
  • Beamforming technology is a signal processing technology used for directional signal transmission or reception in a sensor array. By adjusting the phase of each antenna, the signal can be effectively superimposed and a stronger signal gain can be generated to compensate for the above-mentioned loss during signal propagation. So as to provide guarantee for the transmission quality of wireless signals.
  • the beamforming technology can also be applied to the terminal device 120 side, that is, the terminal device 120 side can also be configured with an antenna array.
  • the network device 110 can use beams with different directions, such as beams 111, 112, 113, 114, and 115, to transmit wireless signals in different directions to cover the cells it serves.
  • the terminal device 120 can use beams with different directions, such as beams. 121, 122, 123 to receive the signal.
  • the network device side may only turn on the beam with the service terminal device, and turn off other useless beams. It should be understood that the number of beams on the network device side and the number of beams on the terminal device side listed in the embodiments of the present application are merely illustrative and do not impose any limitation on the embodiments of the present application.
  • transmission may include sending or receiving.
  • the transmission may be uplink transmission, for example, the terminal device may send a signal to the network device; the transmission may also be downlink transmission, for example, the network device may send a signal to the terminal device.
  • Both the network device 110 and the terminal device 120 can use beams of different directions to transmit or receive signals. However, generally, the network device 110 and the terminal device 120 usually use N beam pairs with better communication selected during the beam training process. (beam pair link, BPL) for data transmission.
  • BPL beam pair link
  • One BPL includes a transmit beam on the network device side and a receive beam on the terminal device side, or a BPL includes a transmit beam on the terminal device side and a receive beam on the network device side. Beam. It should be understood that, in the embodiments of the present application, the beam on the network device side/terminal device side can be either a transmitting beam or a receiving beam.
  • the beam on the network device side/terminal device side can be called a transmitting beam or a transmitting beam.
  • the beam on the network device side/terminal device side can be called a receiving beam.
  • the beam on the network device side can be called the transmitting beam
  • the beam on the terminal device side can be called the receiving beam
  • the beam on the network device side can be called the receiving beam.
  • the beam on the side can be referred to as the transmit beam.
  • the beam at the transmitting end may be called a transmitting beam
  • the beam at the receiving end may be called a receiving beam.
  • the transmitting end may be a network device or a terminal device, and accordingly, the receiving end may be a terminal device or a network device.
  • the selection process of N beam pairs with better communication can be understood as a channel quality measurement process based on reference signal resources of different beams, where the channel quality measurement can be performed based on a synchronization signal after beamforming or a UE-specific reference signal.
  • the network device side can use different transmit beams to send the reference signal (this process can be called beam scanning on the network device side). Accordingly, the terminal device side can use different receive beams to receive the reference signal; the terminal device side can also use different The transmitting beam sends the reference signal (this process may be referred to as beam scanning on the terminal device side), and accordingly, the network device side may use different receiving beams to receive the reference signal.
  • the terminal device can realize the selection of the transmission beam on the network device side and/or the receiving beam on the terminal device side based on the beam scanning on the network device side, and the network device can realize the transmission beam on the terminal device side based on the beam scanning on the terminal device side And/or the selection of the receiving beam on the network device side, thereby obtaining N beam pairs with better communication.
  • the beam training process also includes updating the transmitting beam and updating the receiving beam.
  • the update of the transmit beam may be the update of the transmit beam on the network device side, or the update of the transmit beam on the terminal device side.
  • the network device may send reference signals to the terminal device based on different transmit beams (this process may be called beam scanning on the network device side), and the terminal device passes through the same Receive beams to receive reference signals sent by network devices based on different transmit beams, determine the optimal transmit beam of the network device based on the received signal (this process can be called beam matching), and then feed back the optimal transmit beam of the network device to the network Equipment so that network equipment can update the transmit beam.
  • the terminal device can send reference signals to the network device based on different transmit beams (this process can be called beam scanning on the terminal device side), and the network device receives through the same receive beam
  • the terminal device determines the optimal transmit beam of the terminal device based on the reference signals sent by different transmit beams (this process may be called beam matching) based on the received signal, and then indicates the optimal transmit beam of the terminal device to the terminal device to facilitate
  • the terminal device updates the transmit beam.
  • the process of the receiving end receiving the reference signal can be understood as the process of measuring the different transmit beams sent by the transmitting end by the receiving end (this process may be called beam Measurement, or beam channel quality measurement), the obtained measurement result is beam measurement information (or beam state information (BSI)), and the receiving end can report the obtained one or more superior beam measurement information to Sender.
  • the receiving end is a terminal device and the sending end is a network device
  • the terminal device can pass one or more of the better measurement results obtained in the beam measurement process through the physical uplink control channel (PUCCH) or The physical uplink shared channel (PUSCH) is sent to the network device.
  • the beam measurement information may include beam index, reference signal receiving power (RSRP) of the beam, reference signal receiving quality (RSRQ) of the beam, channel quality indication (CQI), etc. At least one of them.
  • the update of the receive beam may be the update of the receive beam on the network device side, or the update of the receive beam on the terminal device side.
  • the terminal device sends a reference signal to the network device based on the same transmitting beam, and the network device uses different receiving beams to receive the reference signal sent by the terminal device, and then based on the receiving beam The signal determines the optimal receiving beam of the network device to update the receiving beam of the network device.
  • the network device sends a reference signal to the terminal device based on the same transmitting beam, the terminal device uses different receiving beams to receive the reference signal sent by the network device, and then determines the terminal device's reference signal based on the received signal Optimal receiving beam to update the receiving beam of the terminal device.
  • Beamforming technology can focus the energy of the wireless signal to form a directional beam (beam), so that the energy of the signal is concentrated in the direction of the receiving end.
  • the beam has directivity, and different beams can have different Launch direction.
  • the direction of the shaped beam corresponding to the transmitted signal may no longer match the user's position after the movement, which may cause the receiving end to fail to receive high-quality wireless signals or receive frequent signal interruptions
  • the beam of the current service will be blocked and the signal cannot be transmitted continuously. Therefore, in the signal transmission process, a dynamic measurement report is also required to track the change of the shaped beam.
  • Both the transmitting beam on the network device side and the receiving beam on the terminal device side may change dynamically.
  • the network device and the terminal device obtain N better communications.
  • Beam pair in order to save the beam scanning time of the terminal device, the network device can send beam instruction information to the terminal device to instruct the terminal device to receive the beam, so that the network device and the terminal device use the N better communication beams obtained before The pair in the pair performs signal transmission.
  • the quasi-co-location (QCL) information in the embodiment of this application (also referred to as QCL assumption, QCL assumption information, or co-location assumption in the embodiment of this application) can be used to assist in describing the terminal device side receiving beamforming Shape information and receiving process.
  • the signal may come from different transmission points (transmitting receiving point, TRP).
  • TRP transmitting receiving point
  • the LTE system introduces the antenna port quasi co-located QCL the concept of. If two antenna ports are considered to be QCL, the channel large-scale information of one antenna port can be inferred from the channel large-scale information of the other antenna port; on the contrary, if the two antenna ports are indicated as non-QCL , The terminal device cannot assume that the channel large-scale information of one antenna port can be inferred from the channel large-scale information of the other antenna port.
  • the large-scale channel information includes: channel average gain (average gain), Doppler spread (doppler spread), Doppler shift (doppler shift), average delay (average delay), delay spread (delay spread) Wait.
  • channel average gain average gain
  • Doppler spread Doppler spread
  • Doppler shift Doppler shift
  • average delay average delay
  • delay spread delay spread
  • a single transmission point TRP will also be equipped with a multi-panel large-scale antenna array structure. This structure will result in different large-scale information of different beams formed by different antenna panels.
  • CSI-RS channel state information reference signal
  • DMRS demodulation reference signal
  • the large-scale information of the two antenna ports is QCL (or satisfies the QCL relationship), it is considered to be used for transmission
  • the beam of the reference signal of one antenna port can also be used to transmit the reference signal of another antenna port.
  • the large-scale information of the beam also includes the angle of incidence or the angle of arrival (angle of arrival, AoA).
  • Dominant angle of incidence (dominant AoA), average angle of incidence, power angle spectrum (PAS) of the angle of incidence, exit angle or launch departure angle (angle of departure, AoD), dominant exit angle, average exit angle, exit Angle power angle spectrum
  • terminal transmit beamforming terminal receive beamforming, spatial channel correlation, base station transmit beamforming, base station receive beamforming, spatial receive parameters (spatial Rx parameters) and other parameters that characterize spatial characteristics.
  • the antenna port refers to a logical port used for transmission, which may correspond to one or more actual physical antennas.
  • the definition of antenna port is defined from the perspective of the receiver, that is, if the receiver needs to distinguish the difference in resources in space, it needs to define multiple antenna ports.
  • the reference signal corresponding to a certain antenna port it receives defines the corresponding antenna port, although the reference signal may be a composite of signals transmitted by multiple physical antennas.
  • the network device instructs the two antenna ports of the terminal device to have large-scale information QCL that characterizes the beam space characteristics
  • the channel space characteristic parameters of one antenna port can be derived from the channel space characteristic parameters of the other antenna port. It is inferred and can show that the terminal device/network device uses the same receiving beam to receive the reference signal through the two antenna ports, or the terminal device/network device uses the same transmit beam to transmit the reference signal through the two antenna ports .
  • the "beam” of the transmitting end may also be referred to as the "reference signal resource”. Accordingly, the "beam index” may be referred to as the “reference signal resource index (reference signal index, RS index)”. .
  • the network device may instruct the terminal device to use the demodulation reference signal (DMRS) of the physical downlink control channel (PDCCH) or the physical downlink shared channel (PDSCH) and the terminal device
  • DMRS demodulation reference signal
  • the reference signal may be a CSI-RS
  • the reference signal resource reported by the terminal device is a CSI-RS resource (in fact, the reference signal resource reported by the terminal device It can be a CSI-RS resource index).
  • Each CSI-RS resource index reported by the terminal device corresponds to a transmit and receive beam pair (that is, a BPL) established during the previous measurement based on the CSI-RS resource, and the received beam information of the two reference signals or channels that meet the QCL relationship Are the same, so when the network device indicates that the demodulation reference signal of the PDCCH or PDSCH meets the QCL relationship with one or more CSI-RS resources previously reported by the terminal device, the network device can send the demodulation reference signal of the PDCCH or PDSCH to the terminal device
  • the QCL information includes the CSI-RS resource index previously reported by the terminal device.
  • the terminal device can infer the receiving beam information for receiving the PDCCH or PDSCH, that is, the terminal device determines to receive the PDCCH or PDSCH reception
  • the beam information is the same as the received beam information in the beam pair corresponding to the CSI-RS resource index included in the QCL information.
  • the terminal device can determine based on the CSI-RS resource index to use the receiving beam in the beam pair corresponding to the CSI-RS resource index to receive the PDCCH or PDSCH; or it can also be understood as the terminal device receiving the network device transmission After the QCL information, it will be understood that the CSI-RS network device side transmit beam is also used to transmit the demodulation reference signal of the PDCCH or PDSCH, so that the same receive beam as the CSI-RS port is used to receive the PDCCH or PDSCH.
  • the network device may send demodulation of the PDCCH or PDSCH to the terminal device.
  • the QCL information of the reference signal can be understood as the QCL information used to instruct the terminal device to determine the filtering parameters of the demodulation reference signal that it receives the PDCCH or PDSCH.
  • the QCL information may include the CSI-RS resource previously reported by the terminal device.
  • the CSI-RS resource index reported by the terminal device corresponds to the receiving filter parameter obtained when the terminal device measures the CSI-RS resource, and the terminal device can determine the CSI-RS resource index (ie QCL information) indicated by the network device
  • the filter parameter used by the terminal device to receive the demodulation reference signal of the PDCCH or PDSCH is the same as the filter parameter of the CSI-RS received by the terminal device before, that is, the received beam information is the same.
  • the QCL information can also be expressed as "beam information". Unless otherwise specified, the meanings of the two expressions are the same.
  • the QCL information sent by the network device to the terminal device may include the beam group index number of the second reference signal reported by the terminal device, the resource index number of the second reference signal, At least one of the port group number of the second reference signal and the port number of the second reference signal, where the second reference signal corresponds to one BPL of a plurality of transmit and receive beam pairs measured based on the second reference signal previously reported by the terminal device.
  • the beam group index number of the second reference signal reported by the terminal device may be understood as a resource set index number of the second reference signal reported by the terminal device.
  • the resource index number of the second reference signal reported by the terminal device can be understood as a relative index number based on a set of multiple resource index numbers reported by the terminal device. For example, if the terminal device reports the absolute resource index number ⁇ 1,5,7,9 ⁇ of the 4 second reference signals, then based on the report result of the terminal device, the relative resource index number of the second reference signal is ⁇ 0,1 ,2,3 ⁇ any one of them.
  • the relative resource index number 0 corresponds to the resource index number 1 of the second reference signal reported by the terminal device
  • the relative resource index number 1 corresponds to the resource index number 5 of the second reference signal reported by the terminal device
  • the relative resource index number 2 corresponds to The resource index number 7 of the second reference signal reported by the terminal device
  • the relative resource index number 3 corresponds to the resource index number 9 of the second reference signal reported by the terminal device.
  • the spatial characteristic parameter included in the QCL information describes the spatial channel characteristic between the antenna ports of the first reference signal and the second reference signal, and enables the terminal device to complete the receiving-side beamforming or receiving processing process according to the QCL information.
  • the QCL information of a signal or channel is usually carried in the signaling sent by the network device to the terminal device and indicated to the terminal device.
  • the QCL information configuration mode is different. Taking PDCCH, periodic channel state information reference signal (periodical CSI-RS for short) and semi-persistent scheduling channel state information reference signal (semi-persistent scheduling CSI-RS for short) as examples, the current communication protocol standards for the above three types
  • the QCL information of the signal or channel is indicated to the terminal equipment by way of display signaling.
  • the QCL information of the PDCCH is configured through radio resource control (radio resource control, RRC) signaling and media access control control element (media access control control element, MAC CE) signaling.
  • RRC radio resource control
  • MAC CE media access control control element
  • the network device may configure one or more control resource sets (CORESET) for the terminal device for sending the PDCCH.
  • the network device can send a control channel to the terminal device on any control resource set corresponding to the terminal device, and the terminal device receives the PDCCH sent to itself by blindly detecting the control channel in the search space associated with the control resource set.
  • the control resource set COREST is used to carry the time-frequency resources of the control channel PDCCH.
  • One COREST corresponds to one type of QCL information.
  • the network device configures COREST for the terminal device, it also configures the K of the PDCCH (K ⁇ 1, K is an integer)
  • K is an integer
  • the K candidate QCL information can be configured through RRC signaling.
  • the network device can further indicate the QCL information of the PDCCH through MAC CE signaling.
  • the QCL information of the periodic CSI-RS can be configured through RRC signaling.
  • the QCL information for semi-persistent scheduling CSI-RS can be configured through RRC signaling and MAC CE signaling.
  • the MAC CE signaling for configuring semi-persistent scheduling CSI-RS can be configured with The MAC and CE signaling or messages for activating semi-persistent scheduling CSI-RS are the same.
  • the above only exemplarily gives the configuration modes of the QCL information of the three types of signals or channels, and there are other types of configuration modes of the QCL information of the signals or channels in the specific implementation, which will not be listed here.
  • the configuration modes of the QCL information of the above several types of signals or channels include semi-static configuration, which means that the terminal device will receive signals or channels according to the QCL information configured in the semi-static configuration mode for a long period of time.
  • the QCL information indicates that the terminal device refers to the previous information of the receiving beam used to receive the reference signal to receive the current signal or channel, that is, the QCL information indicates that the terminal device determines to receive the current signal or channel according to the reference signal resource index.
  • the network device may cause the terminal device to be unable to transmit and receive signals according to the receiving beam or receiving filter parameters corresponding to the reference signal resource index indicated in the QCL information, or the network device
  • the side does not use the transmit beam that has a QCL relationship with the reference signal indicated in the QCL information to transmit the current signal or channel, so that the terminal device cannot obtain accurate receiving beam information for receiving the current signal or channel (that is, the terminal device cannot determine If the terminal device still receives the current signal or channel according to the QCL information configured in the semi-static configuration mode, the terminal device may not be able to correctly receive the signal or channel currently sent by the network device.
  • the operations performed by the terminal device described above can also be performed by a chip device, for example, the chip device is a chip device configured in the terminal device; the operations performed by the network device described above can also be performed by a chip device
  • the chip device is a chip device configured in a network device.
  • the terminal device and the chip device that performs the same operation as the terminal device are called the first communication device, and the network device and the chip device that performs the same operation as the network device are called the second communication device. .
  • Fig. 3 shows a schematic flowchart of a wireless network communication method according to an embodiment of the present application.
  • the method 300 of FIG. 3 may be executed by the first communication device.
  • the first communication device may be, for example, the terminal device 120 shown in FIG. 1 or FIG. 2.
  • the method 300 may include steps S310 to S340.
  • step S310 the second communication device configures the first quasi co-located QCL information of the target signal for the first communication device.
  • the first communication device may be a terminal device or a chip device
  • the chip device may be a chip device configured in a terminal device
  • the second communication device may be a network device or a chip device
  • the chip device may be a chip configured in a network device Device.
  • the first communication device is a terminal device and the second communication device is a network device as an example for description.
  • the first quasi-co-located QCL information is used to indicate the beam information of the first communication device, such as the terminal device, to receive the target signal.
  • the first QCL information may indicate the reception filter parameter when the terminal device receives the target signal.
  • the first QCL information includes one or more reference signal resource indexes previously reported by the terminal device, and each reference signal resource index in the one or more reference signal resource indexes corresponds to the terminal device's measurement based on the reference signal resource The BPL of the transceiver beam pair established at the time, wherein each reference signal resource index corresponds to a BPL, and each BPL includes a receiving beam or receiving filtering parameter information.
  • the terminal device can consider that the receiving filter parameter of the terminal device receiving the target signal is the same as the receiving filter parameter when the terminal device previously received the reference signal corresponding to the reference signal resource index, which is equivalent to the terminal device according to the reference in the first QCL information
  • the signal resource index can indirectly obtain the receiving filtering parameters of the receiving target signal.
  • the first QCL information configured by the network device for the terminal device can also be understood as the receiving beam information that the network device instructs the terminal device to use to receive the target signal.
  • the target signal in the embodiment of the present application may be a signal or a channel, such as physical downlink control channel PDCCH, periodic channel state information reference signal (periodic CSI-RS), semi-persistent scheduling channel state information reference signal (semi-persistent scheduling CSI-RS) RS) and other signals or channels, such as synchronous broadcast channel blocks, aperiodic CSI-RS, broadcast physical downlink shared channels, etc.
  • the configuration modes of the QCL information of different types of target signals are different.
  • the configuration mode of the QCL information of the target signal in the embodiment of the present application includes a semi-static configuration mode, such as a radio resource control RRC signaling configuration mode.
  • step S320 the first communication device determines the first quasi co-located QCL information of the target signal.
  • the configuration modes of the first QCL information of the target signal are different, and accordingly, the first communication device, such as a terminal device, determines the first QCL information of the target signal in a different manner.
  • the target signal may be a PDCCH
  • the first QCL information of the target signal (that is, the first QCL information of the PDCCH) may be configured through RRC signaling and MAC CE signaling.
  • a second communication device such as a network device configures the candidate QCL information set of the target signal through RRC signaling, and the candidate QCL information set includes multiple candidate QCL information; the network device indicates one of the multiple candidate QCL information through MAC CE signaling It is the first QCL information of the target signal, that is, the first QCL information of the target signal is one of the multiple candidate QCL information.
  • the target signal may be a periodic CSI-RS
  • the first QCL information of the target signal (that is, the first QCL information of the periodic CSI-RS) may be configured through RRC signaling.
  • the terminal device may determine the first QCL information of the target signal according to the configuration information in the RRC signaling.
  • the target signal may be semi-persistent scheduling CSI-RS
  • the first QCL information of the target signal (that is, the first QCL information of semi-persistent scheduling CSI-RS) may be through RRC signaling and MAC CE signaling Configuration.
  • the terminal device may determine the first QCL information of the target signal according to the configuration information in the RRC signaling and the MAC CE signaling.
  • the terminal device can determine the first QCL information of the target signal in an existing manner, for example, the network device indicates the first QCL information of the target signal of the terminal device through display signaling.
  • the first QCL information of the target signal in the embodiment of the present application may also be predefined or pre-configured. Both the network device and the terminal device are predefined or pre-configured with the first QCL information of the target signal, and the terminal device may The target signal is received according to the pre-configured or pre-defined first QCL information.
  • step S330 when the first QCL information is invalid, the first communication device determines the second QCL information.
  • the failure of the first QCL information can be understood as meaning that the first communication device, such as the terminal device, cannot accurately receive the target signal according to the first QCL information, resulting in the failure of the first QCL information (that is, the terminal device cannot accurately receive the target signal according to the first QCL information).
  • the reason for the target signal is that the filter parameter of the receiving beam in the receiving and sending beam pair corresponding to the reference signal resource index used by the terminal device when receiving the target signal is poor in reference.
  • the reason for the failure of the first QCL information is that the second communication device, such as the network device, has turned off some beams.
  • the network device has turned off the transmit beam corresponding to the reference signal resource index in the first QCL information so that The reference signal under the transmitting beam cannot be transmitted, so that the filtering parameter of the receiving beam corresponding to the reference signal resource index no longer has reference value or has poor reference.
  • the network device turns off the beam for sending the target signal indicated by the first QCL information, that is, the network device does not use the beam for sending the target signal indicated by the first QCL information to send the target signal, and the terminal device The target signal is still received according to the receiving beam corresponding to the beam used to send the target signal indicated in the first QCL information, resulting in the terminal device not being able to receive the target signal correctly.
  • the second QCL information is used to instruct the terminal device to receive the beam information of the target signal.
  • the terminal device cannot correctly receive the target signal according to the first QCL information, and can be based on the second QCL information Receive the target signal.
  • the terminal device may determine that the first QCL information is invalid by itself, or may determine that the first QCL information is invalid according to an instruction of the network device.
  • the terminal device may determine that the first QCL information is invalid.
  • the network device may send beam-off information or a message to the terminal device, and when the terminal device learns that the network device turns off the beam through the beam-off information or message, it may determine that the first QCL information is invalid.
  • the network device can notify the terminal device of the information of all the beams that are turned off on the network device side, and the terminal device can determine whether the transmit beam corresponding to the reference signal resource index included in the first QCL information is turned off, and/or determine whether Instruct whether the transmit beam corresponding to the QCL information sent by the target signal is turned off, so as to determine whether the first QCL information is invalid.
  • the terminal device determines that the transmit beam corresponding to the reference signal resource index included in the first QCL information is turned off, and/or determines that the transmit beam corresponding to the QCL information of the transmit beam used to transmit the target signal is turned off , It can be determined that the first QCL information is invalid.
  • the network device may only notify the terminal device whether the transmit beam corresponding to the reference signal resource index included in the first QCL information is turned off, and/or whether the transmit beam used to transmit the target signal is turned off, the terminal The device may determine whether the first QCL information is invalid according to the information notified by the network device.
  • the network device notifies the terminal device that the transmit beam corresponding to the reference signal resource index included in the first QCL information is turned off, and/or the transmit beam used to transmit the target signal is turned off, and the terminal device is based on the network device side
  • the beam-off information can determine that the first QCL information is invalid. It should be understood that, in the embodiment of the present application, when at least one beam of a BPL or a transceiver beam pair is turned off, it can be understood that the one BPL or the transceiver beam pair is turned off, for example, the transmit beam in a BPL When it is turned off, it can be considered that the one BPL is turned off. It should also be understood that when at least one beam in one BPL is turned off, the one BPL will no longer be used for signal transmission.
  • the terminal device may determine that the first QCL information is invalid according to the instruction of the network device. There are many ways for the terminal device to determine that the first QCL information is invalid according to the instruction of the network device.
  • the network device may send indication information to the terminal device.
  • the indication information is used to indicate that the first QCL information is invalid or not.
  • Bit position 1 indicates that the first QCL information is not invalid (or the first QCL information is valid).
  • the terminal device when the terminal device receives the instruction information sent by the network device, when the preset bit position in the instruction information is 0, the terminal device can determine that the first QCL information is invalid, and when the preset bit position in the instruction information is 1, the terminal The device can determine that the first QCL information is not invalid.
  • the network device may indicate to the terminal device that the first QCL information is invalid by sending indication information to the terminal device, and indicate to the terminal device that the first QCL information is not invalid by not sending the indication information; or, by not sending the indication information. Instruct the terminal device that the first QCL information is not invalid, and instruct the terminal device that the first QCL information is invalid by sending the indication information.
  • the terminal device receives the instruction information sent by the network device, it can be determined that the first QCL information is invalid, and if the terminal device does not receive the instruction information sent by the network device, it can be determined that the first QCL information is There is no failure; in the latter case, the judgment of the terminal equipment is the opposite, which is concise and will not be repeated.
  • the network device may send instruction information to the terminal device, where the instruction information is used to indicate that the first QCL information is valid or the second QCL information is valid.
  • the network device may indicate that the first QCL information is valid through the preset bit position 0 in the indication information, and the preset bit position 1 indicates that the second QCL information is valid.
  • the terminal device may receive the target signal according to the first QCL information, and when the indication information indicates that the second QCL information is valid, the terminal device may receive the target signal according to the second QCL information.
  • the terminal device can determine that the first QCL information is invalid.
  • the terminal device receives the instruction information sent by the network device, and when the terminal device receives the instruction information sent by the network device, the terminal device determines that the first QCL information is invalid, where the instruction information is used for Indicates that the first QCL information is invalid, and/or is used to indicate the second QCL information.
  • the indication information used to indicate the failure of the first QCL information and the indication information used to indicate the second QCL information may be carried or carried by the same message or signaling, or may be carried or carried by different messages or signaling. Bearer.
  • the indication information used to indicate the failure of the first QCL information and the indication information used to indicate the second QCL information are carried in different messages or signaling
  • the different messages or signaling may be sent at the same time or separately For sending, the embodiment of this application does not make specific limitations.
  • the indication information may be carried in the downlink control information DCI.
  • the network device may first determine that the first QCL information is invalid.
  • the network device may determine whether the first QCL information is invalid according to the information of turning off the beam. For example, if the network device turns off the transmit beam in the transceiver beam pair corresponding to the reference signal resource index included in the first QCL information, and/or the network device turns off the transmit beam used to send the target signal, the network device It can be determined that the first QCL information is invalid. In another example, the network device may also consider that as long as the beam is turned off, the first QCL information is considered invalid.
  • the judgment criterion or judgment condition for the failure of the QCL information is equivalent to the failure of the first QCL information.
  • the network device and the terminal device may determine whether the first QCL information is invalid according to the judgment criterion (judgment condition) or determine whether the first QCL information is invalid according to the judgment criterion (judgment condition).
  • the network device can notify the terminal device that the first QCL information is invalid. For example, the network device directly indicates that the first QCL information is invalid, or the network device indirectly indicates the first QCL information by indicating that the second QCL information is valid. QCL information is invalid.
  • the second QCL information may be predefined or configured by the network device.
  • the second QCL information may be pre-defined, that is, the second QCL information in the embodiment of the present application may be pre-configured. Both the network device side and the terminal device side are predefined or pre-configured with the second QCL information. When the first QCL information of the target signal becomes invalid, the terminal device can determine the predefined second QCL information.
  • the second QCL information may include the index of the first synchronization signal block (synchronizing signal block, SSB) received by the first communication device, such as the terminal device.
  • the index of the first synchronization signal block SSB corresponds to the receiving filter parameter when the terminal device measures based on the first synchronization signal block SSB. That is, the second QCL information indicates that the terminal device uses the same filter parameter as the receiving beam of the first synchronization signal block to receive the target signal.
  • the synchronization signal block SSB is the basic signal for terminal equipment to access the cell. Therefore, the beam scanning of the synchronization signal block SSB is usually not easily turned off. When the beam of the network device is suddenly turned off, the terminal device can refer to the previous The receiving filter parameter corresponding to the first synchronization signal block index is used to receive the target signal, thereby ensuring that the terminal device can correctly receive the target signal.
  • the first synchronization signal block may be a synchronization signal block associated with a physical random access channel (PRACH) sent by a first communication device, such as a terminal device, and accordingly, the index of the first synchronization signal block It may be the index of the synchronization signal block associated with the PRACH sent by the terminal device.
  • PRACH physical random access channel
  • the network device can use beams in different directions to send the synchronization signal block SSB message to the terminal device.
  • the SSB sent by the beams in different directions can be the same or different, and the terminal device can measure the SSB to determine A beam pair used for terminal equipment to access the network.
  • Each SSB is associated with the PRACH resource used by the terminal device to access the network.
  • the synchronization signal block associated with the PRACH that is, the first synchronization signal block
  • the first synchronization signal block may be the synchronization signal block associated with the physical random access channel PRACH last transmitted by the terminal device, so that the validity of the reference beam indicated in the QCL information obtained by the terminal device can be guaranteed, so that Improve the accuracy of target signal reception.
  • the first synchronization signal block may be a synchronization signal block associated with a physical random access channel PRACH sent by the terminal device within a preset time, which is not specifically limited in this embodiment of the application.
  • the first synchronization signal block may be a synchronization signal block reported by the first communication device, such as a terminal device, to the network device.
  • the terminal device After the terminal device performs the synchronization signal block measurement, it can report the obtained one or more SSB measurement results to the network device.
  • the first synchronization signal block may be the one SSB reported by the terminal device to the network device.
  • the terminal device reports multiple SSB measurement results to the network device
  • the first synchronization signal block may be one SSB of the multiple SSBs reported by the terminal device to the network device. It should be understood that what the terminal device reports to the network device may be the synchronization signal block index.
  • the first synchronization signal block may be an SSB in the synchronization signal block reported by the terminal device last time.
  • the first synchronization signal block may be the strongest SSB reported by the terminal device to the network device, or the The first synchronization signal block may be an SSB whose measurement result of the SSB among the multiple SSBs reported by the terminal device to the network device meets a preset condition or threshold.
  • synchronization signal blocks in the embodiments of the present application, for example, it may be the SSB corresponding to the lowest SSB time index, it may be the SSB corresponding to the received control channel resource set 0, or it may be in the initial access phase.
  • the SSB may also be another SSB, which is not specifically limited in the embodiment of the present application.
  • the second QCL information may include the reference signal resource index in the first measurement result of the first communication device, such as the terminal device.
  • the "measurement result of the terminal device” can be understood as the channel quality measurement result of the terminal device for the reference signal
  • the “first measurement result of the terminal device” can be understood as one measurement result of the channel quality measurement result of the terminal device for the reference signal.
  • the measurement result of the terminal equipment includes one or more reference signal indexes, where each reference signal index corresponds to a channel quality.
  • the channel quality can be reference signal receiving power (reference signal receiving power, RSRP) or reference signal receiving quality (reference signal receiving power). signal receiving quality, RSRQ) characterization.
  • the first measurement result may be a measurement result of channel quality measurement for the first reference signal resource set.
  • the first reference signal resource set includes multiple reference signal resources, and each reference signal resource corresponds to one reference signal.
  • reference signal resource can also be expressed as “beam”.
  • first reference signal resource set can be understood as “beam set” or “beam set”, which includes multiple beams, Each beam corresponds to a reference signal.
  • the network device side needs to open all the reference signal resources in the reference signal resource set at regular intervals to obtain channel quality measurement information for the first reference signal resource set on the network device side.
  • the network device may configure a long-period reference signal set corresponding to the first reference signal resource set on the network device side, where each reference signal in the reference signal set corresponds to the first reference signal resource set A reference signal resource (or beam) in the first reference signal resource set, the terminal device monitors the channel quality of all reference signals in the reference signal set corresponding to the first reference signal resource set, and obtains the first reference signal resource set on the network device side The channel quality of all reference signal resources.
  • the first reference signal resource set includes part or all of the reference signal resources of all reference signal resources of the serving cell of the coverage network device (it can also be understood that the first reference signal resource set includes the beam of the serving cell of the coverage network device). Part or all of the beams in).
  • the first measurement result may be one of the most recent channel quality measurement results of the first reference signal resource set.
  • the first measurement result may be the most recent channel quality measurement result of the first reference signal resource set.
  • the channel quality measurement results are the strongest.
  • the first measurement result may also be a channel quality measurement result that meets a preset condition or threshold in a certain channel quality measurement result of the first reference signal resource set within a preset time.
  • the first measurement result may be a measurement result corresponding to a preset reference signal resource index in a channel quality measurement result reported by the first communication device, such as a terminal device.
  • the second QCL information may include the reference signal resource index in the first measurement result of the terminal device
  • the second QCL information may include the preset reference signal in the channel quality measurement result reported by the terminal device Resource index
  • the first measurement result includes the preset reference signal resource index.
  • the first measurement result may be the measurement result corresponding to the reference signal resource index with the largest, smallest, or intermediate reference signal resource index in the channel quality measurement results reported by the terminal device, that is, the preset reference signal resource index is the index
  • the largest reference signal resource index, the reference signal resource index with the smallest index, or the reference signal resource index with an intermediate value, that is, the second QCL information may include the largest reference signal resource index among the channel quality measurement results reported by the terminal device, Reference signal resource index of the smallest or middle value.
  • the preset reference signal resource index may also be other values, which is not limited in the embodiment of the present application.
  • the reference signal associated with the "first reference signal resource set” may be a synchronization signal block SSB, a channel state information reference signal, or other reference signals, such as demodulation reference
  • the signal demodulation reference signal, DMRS is not limited in the embodiment of this application.
  • the reference signal associated with the "first reference signal resource set" is a synchronization signal block SSB
  • there may be multiple types of SSB for example, it may be the SSB corresponding to the lowest SSB time index.
  • the SSB corresponding to the control channel resource set 0 may be the SSB in the initial access phase, or other SSB, which is not specifically limited in the embodiment of the application.
  • the target signal to which the method of determining the second QCL information by the terminal device applies may be PDCCH, periodic CSI-RS, semi-persistent scheduling CSI-RS, or other signals or channels,
  • PDCCH periodic CSI-RS
  • semi-persistent scheduling CSI-RS or other signals or channels
  • the terminal device may also determine the second QCL information in the following manner.
  • the second communication device can configure the candidate QCL information set of the target signal through RRC signaling, and the candidate QCL information set includes multiple candidate QCL information; the network device indicates the multiple candidates through MAC CE signaling
  • One of the QCL information is the first QCL information of the target signal.
  • the first communication apparatus such as a terminal device, may determine one QCL information other than the first QCL information in the candidate QCL information set configured for the terminal device by the network device as the second QCL information.
  • multiple candidate QCL information in the candidate QCL information set can be indicated by transmission configuration indicator (TCI) signaling, and the network device can configure the TCI state set for the terminal device through RRC signaling, the TCI state
  • TCI transmission configuration indicator
  • the set includes multiple TCIs.
  • the multiple TCIs in the TCI state set correspond to multiple candidate QCL information in the candidate QCL information set.
  • the MAC CE signaling can indicate one TCI of the multiple TCIs.
  • the terminal equipment according to the MAC The CE signaling determines the TCI, thereby determining the QCL information. If the TCI indicated by the MAC CE signaling fails, the terminal device may select the QCL information indicated by the TCI other than the TCI used to indicate the first QCL information as the second QCL information from the TCI state set configured by the RRC signaling.
  • the terminal device may select the QCL information indicated by the valid TCI state with the largest or smallest reference signal resource index in the TCI state set as the second QCL information. It should be understood that the terminal device may also select the QCL information indicated by the valid TCI state whose reference signal resource index is another value in the TCI state set as the second QCL information, which is not specifically limited in the embodiment of the present application.
  • the terminal device may determine the second QCL information according to several determination methods for the terminal device to determine the second QCL information when the target signal is a periodic CSI-RS 2.
  • the QCL information for details, please refer to the above description, which is concise and will not be repeated here.
  • TCI failure may be understood as the failure of the QCL information indicated by the TCI, that is, the transmit beam corresponding to the reference signal resource index indicated by the TCI is turned off.
  • the configuration mode of the second QCL information can be determined according to different types of signals or channels, and the second QCL information can be configured in any of the following ways: radio resource control RRC signaling; or, RRC signaling and media intervention control unit MAC CE signaling; or, RRC signaling and downlink control information DCI signaling.
  • the configuration mode of the second QCL information may be the same as the configuration mode of the first QCL information, and for details, please refer to the above description.
  • the second QCL information is predefined.
  • the second QCL information may be configured by the second communication device, such as a network device. It should be understood that the second QCL information in the embodiment of the present application is dynamically configured by the network device.
  • the first communication device may receive the second QCL information sent by the second communication device, such as a network device.
  • the second QCL information is dynamically configured for the terminal device by the network device after determining that the first QCL information is invalid.
  • the second QCL information may include a reference signal resource index reconfigured by the network device for the terminal device, and the terminal device may determine a filter parameter (or receiving beam) for receiving the target signal according to the reference signal resource index reconfigured by the network device.
  • the network device can reconfigure the second QCL information for the terminal device, so that when the network device turns off some beams, it can ensure that the terminal device can receive the target signal according to the QCL hypothesis corresponding to other valid beams, and then Ensure the accuracy of target signal reception.
  • the second QCL information may be carried in downlink control information DCI signaling or media intervention control unit MAC CE signaling.
  • the DCI signaling can be designed according to different types of signals or channels.
  • the DCI can be a DCI that indicates the failure of the reference signal resource index, a newly added DCI, or a DCI that indicates the dynamic release of CSI-RS.
  • MAC CE signaling can also be designed according to different types of signals or channels. The situation is similar to DCI signaling, which is not specifically limited in the embodiment of this application.
  • the first communication device may receive the instruction information sent by the second communication device, such as the network device, where the instruction information is used for Indicates that the first QCL information is invalid.
  • the network device when the network device sends the second QCL information to the terminal device through signaling, it may also send indication information to the terminal device. The indication information is used to indicate that the first QCL information is invalid.
  • step S340 the terminal device receives the target signal according to the second QCL information.
  • the terminal device can determine the receiving filter parameter used to receive the target signal according to the second QCL information, so as to receive the target signal according to the receiving filter parameter.
  • the first communication device when the first QCL information of the target signal fails, the first communication device, such as a terminal device, can receive the target signal according to the second QCL information, so that the second communication device, such as a network device, can be
  • the first QCL information configured by a communication device fails, that is, when the second communication device side turns off some beams, for example, when the transmission beam corresponding to the reference signal resource index in the first QCL information or the transmission beam used to send the target signal.
  • the QCL information and receiving behavior of the first communication device, such as the terminal device, for receiving the target signal can be re-determined, thereby ensuring the accuracy of receiving the target signal.
  • the wireless network communication method provided in the embodiments of the present application can be applied to a situation where a terminal device works on a bandwidth part (BWP) (that is, the terminal device does not perform BWP switching).
  • BWP bandwidth part
  • the embodiments of the present application may also be applied to a situation where a terminal device switches between BWPs of different bandwidth parts.
  • FIG. 4 the target signal is the PDCCH as an example for description, but the embodiment of the present application may also apply other types of signals or channels.
  • Fig. 4 shows a schematic flowchart of a wireless network communication method according to another embodiment of the present application. As shown in FIG. 4, the method 400 includes step S410 to step S450.
  • step S410 the second communication device configures a CORESET/PDSCH TCI state set for the first communication device.
  • the first communication device is a terminal device and the second communication device is a network device as an example for description.
  • the second communication device may configure TCI state sets for different bandwidth parts (BWP).
  • BWP can be understood as the working bandwidth of the first communication device, such as a terminal device, corresponding to a specific carrier and a specific parameter set.
  • the terminal device can configure multiple BWPs, but only one can be activated at the same time. Different BWPs can use different parameter sets.
  • the terminal device transmits and receives signals within the activated BWP range. Outside the BWP, the terminal device will not receive PDSCH, PDCCH or CSI-RS.
  • the network device configures TCI state sets for different BWPs of the terminal device, each TCI state set includes multiple TCI states, and the TCI state can indicate the QCL information of the signal received by the terminal device. For example, if the terminal device is configured with two BWPs (BWP#1 and BWP#2) as an example, the network device can configure TCI state set #1 for BWP#1 and TCI state set #2 for BWP#2, where the TCI state set A TCI state in #1 is used to indicate that the terminal device receives the first QCL information of the signal on BWP#1.
  • step S420 when the first QCL information is invalid, the second communication device instructs the first communication device to switch from the current BWP#1 to BWP#2 through DCI#1, and schedules the data PDSCH#1 on BWP#2.
  • the second communication device such as a network device, can notify the terminal device that the first QCL information is invalid, and at the same time indicate that the first communication device, such as the terminal device, is active
  • the signal is received on BWP#2, such as PDSCH#1 shown in Figure 4.
  • step S430 the first communication device switches to BWP#2.
  • step S440 the first communication device receives PDSCH#1 using the second QCL information.
  • the first communication device such as a terminal device, can use the second QCL information to receive PDSCH#1.
  • the second QCL information may be predefined or dynamically configured by the network device for the terminal device.
  • the method for determining the second QCL information can refer to the description in the above method 300, which is concise and will not be repeated here.
  • step S450 the first communication device receives DCI#2 at BWP#2, and schedules data PDSCH#2 on BWP#2.
  • the first communication device such as a terminal device, can receive signals on BWP#2. It should be understood that in this step, the terminal device uses the second QCL information to receive the data PDSCH#2 on the BWP#2.
  • FIG. 5 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • the apparatus 500 in FIG. 5 may be the first communication apparatus mentioned above, for example, it may be a specific example of the terminal device 120 shown in FIG. 1 or FIG. 2.
  • the device 500 may be used to implement the above steps performed by the first communication device, such as the method in FIG. 3 or FIG. 4. To avoid redundancy, the description will not be repeated.
  • the device 500 shown in FIG. 5 includes a determining module 510 and a receiving module 520.
  • the determining module 510 is used to determine the first quasi co-located QCL information of the target signal.
  • the receiving module 520 is configured to receive the target signal according to the second QCL information when the first QCL information fails.
  • the second QCL information is predefined.
  • the target signal is a periodic channel state information reference signal
  • the second QCL information includes any one of the following information: the index of the first synchronization signal block SSB received by the apparatus 500; or, the The reference signal resource index in the first measurement result of the device 500.
  • the target signal is a physical downlink control channel PDCCH or a semi-persistent scheduling channel state information reference signal
  • the second QCL information includes any one of the following information: the second communication device is configured for the device 500 One piece of QCL information other than the first QCL information in the candidate QCL information set, where the candidate QCL information set includes the first QCL information; or, the first synchronization signal block SSB received by the apparatus 500 Or, the reference signal resource index in the first measurement result of the apparatus 500.
  • the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the apparatus 500, or a synchronization signal block reported by the apparatus 500 to the network device.
  • the first synchronization signal block SSB is the synchronization signal block associated with the physical random access channel PRACH sent by the apparatus 500
  • the first synchronization signal block SSB is the latest transmission by the apparatus 500 The synchronization signal block associated with the physical random access channel PRACH.
  • the first measurement result is a measurement result of channel quality measurement for a first set of reference signal resources, or a measurement result corresponding to a preset reference signal resource index among the channel quality measurement results reported by the apparatus 500 .
  • the determining module 510 is further configured to determine that the first QCL information is invalid when the receiving module 520 receives the indication information sent by the second communication device, wherein the indication information is used to indicate the first QCL The information is invalid and/or used to indicate the second QCL information.
  • the indication information is carried in the downlink control information DCI.
  • the first QCL information or the second QCL information is configured in any of the following ways: radio resource control RRC signaling; or, RRC signaling and media intervention control unit MAC CE signaling; or, RRC signaling and downlink control information DCI signaling.
  • the receiving module 520 is further configured to receive the second QCL information sent by the network device.
  • the second QCL information is carried in downlink control information DCI signaling or media intervention control unit MAC CE signaling.
  • the determining module 510 may be a processor.
  • the receiving module 520 may be a receiver, a transceiver, or a transceiver.
  • Fig. 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device 600 shown in FIG. 6 may correspond to the first communication device described above, for example, may be a specific example of the terminal device 120 in FIG. 1 or FIG. 2.
  • the communication device 600 includes: a processor 602.
  • the processor 602 is configured to control and manage the actions of the first communication device, such as a terminal device.
  • the processor 602 is configured to support the first communication device, such as a terminal device, to execute the operations shown in FIG. Or the method or operation or function shown in Figure 4.
  • the communication device 600 may further include: a memory 601 and a communication interface 603; the processor 602, the communication interface 603, and the memory 601 may be connected to each other or through the bus 604.
  • the communication interface 603 is used to support the first communication device, such as a terminal device, to communicate, and the memory 601 is used to store the program code and data of the first communication device, such as the terminal device.
  • the processor 602 calls the code stored in the memory 601 for control and management.
  • the memory 601 may or may not be coupled with the processor.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 602 may be a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
  • the communication interface 603 may be a transceiver, circuit, bus, module, or other type of communication interface.
  • the bus 604 may be a peripheral component interconnect standard (PCI) bus or an extended industry standard architecture (EISA) bus, etc.
  • PCI peripheral component interconnect standard
  • EISA extended industry standard architecture
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used in FIG. 6, but it does not mean that there is only one bus or one type of bus.
  • Fig. 7 is a schematic structural diagram of a device provided by another embodiment of the present application.
  • the apparatus 700 in FIG. 7 may be the second communication apparatus mentioned above, for example, may be a specific example of the network device 110 shown in FIG. 1 or FIG. 2.
  • the device 700 may be used to implement the above steps performed by the second communication device, for example, the method of FIG. 3 or FIG. 4. To avoid redundancy, the description will not be repeated.
  • the device 700 shown in FIG. 7 includes a configuration module 710 and a sending module 720.
  • the configuration module 710 is configured to configure the first quasi co-located QCL information of the target signal for the first communication device.
  • the sending module 720 is configured to instruct the first communication device to receive the target signal according to the second QCL information when the first QCL information fails.
  • the second QCL information is predefined.
  • the target signal is a periodic channel state information reference signal
  • the second QCL information includes any one of the following information: the index of the first synchronization signal block SSB received by the first communication device; or, The index of the reference signal in the first measurement result of the first communication device.
  • the target signal is a physical downlink control channel PDCCH or a semi-persistent scheduling channel state information reference signal
  • the second QCL information includes any one of the following information: the configuration module 710 is the first communication One piece of QCL information other than the first QCL information in the candidate QCL information set configured by the device, wherein the candidate QCL information set includes the first QCL information; or, the first QCL information received by the first communication device An index of a synchronization signal block SSB; or, an index of a reference signal in the first measurement result of the first communication device.
  • the first synchronization signal block SSB is a synchronization signal block associated with the physical random access channel PRACH sent by the first communication device, or is a synchronization signal block reported by the first communication device to the network device Signal block.
  • the first synchronization signal block SSB is the synchronization signal block associated with the physical random access channel PRACH sent by the first communication device
  • the first synchronization signal block SSB is the first communication
  • the synchronization signal block associated with the physical random access channel PRACH last transmitted by the device.
  • the first measurement result is a measurement result of a channel quality measurement for a first reference signal resource set, or a channel quality measurement result reported by the first communication device that corresponds to a preset reference signal resource index Measurement results.
  • the sending module 720 is further configured to send indication information to the first communication device, where the indication information is used to indicate that the first QCL information is invalid and/or is used to indicate the second QCL information.
  • the indication information is carried in the downlink control information DCI.
  • the first QCL information or the second QCL information is configured in any of the following ways: radio resource control RRC signaling; or, RRC signaling and media intervention control unit MAC CE signaling; or, RRC signaling and downlink control information DCI signaling.
  • the sending module 720 is specifically configured to send the second QCL information to the first communication device.
  • the second QCL information is carried in downlink control information DCI signaling or media intervention control unit MAC CE signaling.
  • FIG. 8 is a schematic structural diagram of a communication device provided by another embodiment of the present application.
  • the communication device 800 shown in FIG. 8 may correspond to the second communication device described above, for example, may be a specific example of the network device 110 in FIG. 1 or FIG. 2.
  • the communication device 800 includes a processor 802.
  • the processor 802 is used to control and manage the actions of the second communication device, such as a network device.
  • the processor 802 is used to support the second communication device, such as a network device, to execute Figure 3 in the foregoing embodiment. Or the method or operation or function shown in Figure 4.
  • the communication device 800 may further include: a memory 801 and a communication interface 803; the processor 802, the communication interface 803, and the memory 801 may be connected to each other or through a bus 804.
  • the communication interface 803 is used to support the second communication device such as a network device to communicate
  • the memory 801 is used to store the program code and data of the second communication device such as the network device.
  • the processor 802 calls the code stored in the memory 801 for control and management.
  • the memory 801 may be coupled with the processor or not.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 802 may be a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
  • the communication interface 803 may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces.
  • the bus 804 may be a peripheral component interconnect standard (PCI) bus or an extended industry standard architecture (EISA) bus, etc.
  • PCI peripheral component interconnect standard
  • EISA extended industry standard architecture
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in FIG. 8, but it does not mean that there is only one bus or one type of bus.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can 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.
  • each unit in each embodiment 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 methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software 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.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, network equipment, user equipment, 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.
  • 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 digital video disc (digital video disc, DVD for short)), or a semiconductor medium (for example, SSD).
  • the embodiments can be mutually cited.
  • methods and/or terms between method embodiments can be mutually cited, such as functions and/or functions between device embodiments.
  • Or terms may refer to each other, for example, functions and/or terms between the device embodiment and the method embodiment may refer to each other.

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Abstract

La présente invention concerne un procédé de communication de réseau sans fil et un dispositif de communication. Le procédé de communication de réseau sans fil comprend l'étape suivante : un premier dispositif de communication détermine des informations d'un premier quasi-emplacement (QCL) d'un signal cible ; lorsque les premières informations de QCL sont invalides, le premier dispositif de communication reçoit le signal cible conformément à des secondes informations de QCL. Dans cette solution technique, lorsque les premières informations de QCL du signal cible sont invalides, le premier dispositif de communication peut recevoir le signal cible conformément aux secondes informations de QCL, de sorte que, lorsque les premières informations de QCL sont invalides, c'est-à-dire lorsque certains faisceaux au niveau d'un second côté du dispositif de communication sont déconnectés, des informations de QCL et le comportement de réception du signal cible reçu par le premier dispositif de communication peuvent être re-déterminés, ce qui permet d'assurer la précision de réception du signal cible.
PCT/CN2020/103141 2019-07-24 2020-07-21 Procédé de communication de réseau sans fil et dispositif de communication WO2021013138A1 (fr)

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