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WO2025076698A1 - Procédé d'indication de faisceau et appareil associé - Google Patents

Procédé d'indication de faisceau et appareil associé Download PDF

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Publication number
WO2025076698A1
WO2025076698A1 PCT/CN2023/123830 CN2023123830W WO2025076698A1 WO 2025076698 A1 WO2025076698 A1 WO 2025076698A1 CN 2023123830 W CN2023123830 W CN 2023123830W WO 2025076698 A1 WO2025076698 A1 WO 2025076698A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
beams
activated
offset
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/123830
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English (en)
Chinese (zh)
Inventor
张希
毕晓艳
马江镭
童文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2023/123830 priority Critical patent/WO2025076698A1/fr
Publication of WO2025076698A1 publication Critical patent/WO2025076698A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station

Definitions

  • the present application relates to the field of communication technology, and in particular to a beam indication method and related devices.
  • wireless communication systems are introducing higher frequency spectrum resources, such as millimeter wave and terahertz bands.
  • the path loss experienced by wireless signals is large, which affects the coverage distance.
  • beamforming technology is usually used to focus signal energy into a specific angle range, thereby increasing the coverage distance of wireless signals.
  • the transmitter and the receiver usually exchange information, such as the receiver notifying the transmitter of available beams and the transmitter notifying the receiver of sending and receiving beams.
  • the terminal device performs beam measurement based on the reference signal sent by the base station (for example, synchronization signal/physical broadcast channel block (SSB) or channel state information reference signal (CSI-RS)), and reports the reference signal resource number corresponding to one or more beams and the beam quality of the one or more beams to the base station. Then, the base station indicates the service beam to the terminal device. For example, the base station indicates the reference signal resource number to the terminal device. Data transmission between the base station and the terminal device is thereby achieved.
  • beam indication is achieved by the base station indicating the quasi-co-location (QCL) relationship between multiple reference signals to the terminal device.
  • QCL quasi-co-location
  • the base station indirectly indicates the QCL relationship between multiple reference signals, which results in low efficiency and low accuracy of beam indication.
  • the present application provides a beam indication method and a related device, which are used for a terminal device to receive first indication information from a network device.
  • the first indication information is used to indicate that the service beam of the terminal device is a spatial interpolation beam or a concurrent multi-beam.
  • the network device indicates a specific service beam to the terminal device. The efficiency and accuracy of beam indication are improved.
  • the first aspect of the present application provides a beam indication method, which is performed by a terminal device.
  • the terminal device may be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module, or control unit in the aforementioned device or apparatus, which is not specifically limited in the present application.
  • a terminal device when referring to a terminal device, it may refer to the terminal device itself, or to a chip, functional module or integrated circuit in the terminal device that completes the method provided by the present application, which is not specifically limited in the present application.
  • the method is described by taking the execution of the terminal device as an example.
  • the method provided in the present application includes:
  • the terminal device receives first indication information from the network device, and the first indication information is used to indicate that the service beam of the terminal device is a spatial interpolation beam or a concurrent multi-beam, and the spatial interpolation beam or the concurrent multi-beam is determined based on multiple activated transmission beams.
  • the service beam may also be referred to as an activated transmission configuration indicator (TCI) state, an activated beam, or an activated quasi-colocation (QCL) relationship.
  • the spatial interpolation beam may also be referred to as an interpolation beam, a predicted beam, a new beam, or a service beam.
  • Concurrent multi-beams may also be referred to as multi-beams, predicted beams, new beams, or service beams.
  • Activating a transmission beam may also be referred to as activating a transmission beam, activating a downlink transmission beam, or activating a transmitting end beam.
  • the terminal device receives the first indication information from the network device, and the first indication information is used to indicate that the service beam of the terminal device is a spatial interpolation beam or a concurrent multi-beam.
  • the network device indicates a specific service beam to the terminal device, improving the efficiency and accuracy of beam indication.
  • the first indication information indicates that the service beam of the terminal device is a spatial interpolation beam
  • the first indication information is also used to indicate at least one of the following: a spatial interpolation coefficient corresponding to each of a plurality of activated transmission beams, a half-power beam width (HPBW) difference of the service beam relative to one of the plurality of activated transmission beams, or a first time offset, and the first time offset is used to indicate or determine the effective time of the spatial interpolation beam.
  • the first indication information can also indicate corresponding spatial interpolation parameters, so as to facilitate the terminal device to determine the spatial interpolation beam based on these spatial interpolation parameters.
  • the terminal device can accurately determine the service beam, improve the accuracy of the service beam determined by the terminal device, and help improve The transmission performance between the terminal device and the network device.
  • the HPBW difference of the service beam relative to one of the multiple activated transmit beams may also be referred to as the HPBW difference of the transmit beam used by the network device relative to one of the multiple activated transmit beams.
  • the spatial interpolation coefficients corresponding to each of the multiple activated transmit beams, the HPBW difference of the service beam relative to one of the multiple activated transmit beams, and/or the first time offset may also be carried in other information, which is not specifically limited in this application.
  • the first indication information includes at least one of the following: a spatial interpolation coefficient corresponding to each of a plurality of activated transmit beams, an HPBW difference of a service beam relative to one of the plurality of activated transmit beams, or a first time offset.
  • the first indication information includes at least one of the following: a spatial interpolation coefficient corresponding to one of the multiple activated transmission beams, a HPBW difference of the service beam relative to one of the multiple activated transmission beams, or a first time offset; the method also includes: the terminal device determines the spatial interpolation coefficient corresponding to each of the multiple activated transmission beams according to the spatial interpolation coefficient corresponding to one of the multiple activated transmission beams.
  • the spatial interpolation coefficient corresponding to the activated transmit beam includes: the spatial interpolation coefficient of the angle of departure (AOD) of the reference signal corresponding to the activated transmit beam.
  • AOD angle of departure
  • the terminal device can first determine the angle of the transmit beam used by the network device through the spatial interpolation coefficient of the angle of departure of the reference signal corresponding to the activated transmit beam, and then determine the angle of the service beam through the beam pairing relationship. Thereby improving the accuracy of the service beam determined by the terminal device.
  • the spatial interpolation coefficient of the departure angle includes the spatial interpolation coefficient of the azimuth angle and/or the spatial interpolation coefficient of the zenith angle. It can be seen that the spatial interpolation coefficient is described from two angle dimensions, thereby improving the accuracy of the service beam determined by the terminal device.
  • the method further includes: the terminal device determines the angle of the service beam according to the spatial interpolation coefficients corresponding to each activated transmission beam, and/or the terminal device determines the width of the service beam according to the HPBW difference, and/or the terminal device determines the effective time of the service beam according to the first time offset.
  • the terminal device can accurately determine the service beam and improve the accuracy of the service beam. This is conducive to improving the transmission performance between the terminal device and the network device.
  • the method also includes: the terminal device measures the reference signals corresponding to multiple activated transmission beams to obtain the multipath information corresponding to the multiple activated transmission beams; the terminal device determines the angle of the service beam according to the spatial interpolation coefficients corresponding to each activated transmission beam, and/or the terminal device determines the width of the service beam according to the HPBW difference, including: the terminal device determines the angle of the service beam according to the spatial interpolation coefficients and multipath information corresponding to each activated transmission beam, and/or the terminal device determines the width of the service beam according to the HPBW difference and multipath information. Furthermore, the terminal device also determines the angle and width of the service beam in combination with the multipath information. Thereby improving the accuracy of the service beam. It is beneficial to improve the transmission performance between the terminal device and the network device.
  • the value of the first indication information is a first value of a first code point
  • the first value of the first code point is used to indicate at least one of the following: a spatial interpolation coefficient corresponding to each activated transmit beam, an HPBW difference, or a first time offset. This helps to reduce the processing complexity of the terminal device and reduce signaling overhead.
  • the method further includes: the terminal device receives a first mapping relationship from the network device, the first mapping relationship including a mapping relationship between different values of the first code point and at least one of a spatial interpolation coefficient, an HPBW difference, and a time offset. This facilitates the network device to indicate the corresponding spatial interpolation parameter to the terminal device through the code point. This is conducive to reducing the processing complexity of the terminal device and reducing the signaling overhead.
  • the first indication information indicates that the service beam of the terminal device is a concurrent multi-beam
  • the first indication information is also used to indicate at least one of the following: the AOD offset of the service beam relative to each activated transmission beam in a plurality of activated transmission beams, the HPBW offset corresponding to the service beam relative to each activated transmission beam, or a second time offset, and the second time offset is used to indicate or determine the effective time of the concurrent multi-beam.
  • the first indication information can also indicate the relevant parameters of the corresponding concurrent multi-beam, so as to facilitate the terminal device to determine the concurrent multi-beam based on these relevant parameters.
  • the terminal device is enabled to accurately determine the concurrent multi-beam.
  • the accuracy of the concurrent multi-beam determined by the terminal device is improved. It is conducive to improving the transmission performance between the terminal device and the network device.
  • the AOD offset of the service beam relative to each activated transmission beam in a plurality of activated transmission beams can also be referred to as the AOD offset of the transmission beam adopted by the network device relative to each activated transmission beam in a plurality of activated transmission beams.
  • the HPBW offset of the serving beam relative to each activated transmission beam may also be referred to as the HPBW offset of the transmission beam used by the network device relative to each activated transmission beam.
  • the AOD offset of the service beam relative to each activated transmit beam in multiple activated transmit beams, the HPBW offset corresponding to the service beam relative to each activated transmit beam, and/or the second time offset may also be carried in other information, which is not limited in this application.
  • the AOD offset of the service beam relative to each of the multiple activated transmit beams includes: the offset of the service beam relative to the azimuth angle of the reference signal corresponding to each activated transmit beam, and/or, the offset of the service beam relative to the zenith angle of the reference signal corresponding to each activated transmit beam. It can be seen that the AOD offset is described from two angle dimensions, thereby improving the accuracy of the service beam determined by the terminal device.
  • the first indication information is also used to indicate the power of the concurrent multi-beams, so that the terminal device can determine the transmission power of each beam in the concurrent multi-beams, thereby facilitating the improvement of the transmission performance between the terminal device and the network device.
  • the method further includes: the terminal device determines the angle of the service beam according to the AOD offset, and/or the terminal device determines the width of the service beam according to the HPBW offset, and/or the terminal device determines the effective time of the service beam according to the second time offset.
  • the terminal device can accurately determine the service beam and improve the accuracy of the service beam. This is conducive to improving the transmission performance between the terminal device and the network device.
  • the method also includes: the terminal device measures multiple activated transmission beams to obtain multipath information corresponding to the multiple activated transmission beams; the terminal device determines the angle of the service beam according to the AOD offset, and/or the terminal device determines the width of the service beam according to the HPBW offset, including: the terminal device determines the angle of the service beam according to the AOD offset multipath information, and/or the terminal device determines the width of the service beam according to the HPBW offset and multipath information. Further, the terminal device also determines the angle and width of the service beam in combination with the multipath information. Thereby improving the accuracy of the service beam. It is beneficial to improve the transmission performance between the terminal device and the network device.
  • the value of the first indication information is the first value of the second code point
  • the first value of the second code point is used to indicate at least one of the following: an AOD offset of the service beam relative to each of the multiple activated transmission beams, an HPBW offset corresponding to the service beam relative to each of the activated transmission beams, or a second time offset. This helps to reduce the processing complexity of the terminal device and reduce the indication signaling overhead.
  • the method further includes: the terminal device receives a second mapping relationship from the network device, the second mapping relationship including a mapping relationship between different values of the second code point and at least one of the AOD offset, the HPBW offset, and the time offset.
  • the terminal device receives a second mapping relationship from the network device, the second mapping relationship including a mapping relationship between different values of the second code point and at least one of the AOD offset, the HPBW offset, and the time offset. This facilitates the network device to indicate corresponding concurrent multi-beam parameters to the terminal device through the code point. This is conducive to reducing the processing complexity of the terminal device and reducing the indication signaling overhead.
  • the first indication information is carried in downlink control information (DCI), which is helpful to reduce the processing complexity of the terminal device and reduce the signaling overhead.
  • DCI downlink control information
  • multiple activated transmission beams are transmission beams selected from multiple candidate transmission beams according to the beam qualities of multiple candidate transmission beams, and the multiple candidate transmission beams belong to multiple transmission beams measured by the network device configuration terminal device, and the beam qualities of the multiple candidate transmission beams are obtained by measuring the multiple candidate transmission beams. It can be seen that the multiple activated transmission beams are multiple transmission beams selected through the measurement process.
  • the terminal device determines the service beam in combination with the multiple activated transmission beams. Thereby, the angle and/or width of the service beam can be accurately determined.
  • the method before the terminal device receives the first indication information from the network device, the method also includes: the terminal device receives the first configuration information from the network device, the first configuration information includes AOD information corresponding to multiple reference signals respectively, and/or HPBW information corresponding to multiple reference signals respectively, each of the multiple reference signals corresponds to a transmission beam, multiple reference signals correspond to multiple transmission beams, and multiple activated transmission beams belong to multiple transmission beams; the terminal device measures multiple transmission beams according to the first configuration information to obtain beam qualities corresponding to the multiple transmission beams respectively; the terminal device sends candidate transmission beam information and/or candidate transmission beam quality information to the network device, the candidate beam information is used to indicate multiple candidate transmission beams, multiple candidate transmission beams belong to multiple transmission beams, and the candidate beam quality information is used to indicate beam qualities corresponding to multiple candidate transmission beams respectively.
  • the network device assists the terminal device to better measure the multiple transmission beams through the first configuration information, thereby improving the accuracy of beam measurement.
  • the terminal device selects some of the candidate transmission beams and reports them to the network device, which is beneficial for the network device to select the appropriate activated transmission beam and facilitates the terminal device to accurately determine the service beam of the terminal device based on these activated transmission beams.
  • the transmission performance between the terminal device and the network device is improved.
  • the AOD angle information corresponding to the multiple reference signals includes: an azimuth angle corresponding to each of the multiple reference signals, and/or a zenith angle corresponding to each of the multiple reference signals. Describing the angle information from two angle dimensions is conducive to improving the accuracy of the terminal device in measuring the beam.
  • the HPBW information corresponding to the multiple reference signals includes: an azimuth angle width corresponding to each of the multiple reference signals, and/or a zenith angle width corresponding to each of the multiple reference signals.
  • the HPBW information is described from two angle dimensions, thereby facilitating improving the accuracy of beam measurement by the terminal device.
  • the method before the terminal device receives the first indication information from the network device, the method further includes: the terminal device receives the second indication information from the network device, the second indication information is used to indicate reference signals corresponding to multiple activated transmit beams, and the multiple activated transmit beams belong to multiple candidate transmit beams.
  • the terminal device determines the serving beam based on the multiple activated transmit beams.
  • the second aspect of the present application provides a beam indication method, which is performed by a network device.
  • the network device may be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module or control unit in the aforementioned device or apparatus, which is not specifically limited in the present application.
  • a network device when referring to a network device, it may refer to the network device itself, or to a chip, functional module or integrated circuit in the network device that completes the method provided in the present application, which is not specifically limited in the present application.
  • the method is described as being performed by a network device.
  • the method provided in the present application includes:
  • the network device sends a first indication message to the terminal device, and the first indication message is used to indicate that the service beam of the terminal device is a spatial interpolation beam or a concurrent multi-beam, and the spatial interpolation beam or the concurrent multi-beam is determined based on multiple activated transmit beams.
  • the service beam may also be referred to as an activated TCI state, an activated beam, or an activated QCL relationship.
  • the spatial interpolation beam may also be referred to as an interpolation beam, a predicted beam, a new beam, or a service beam.
  • Concurrent multi-beams may also be referred to as multi-beams, predicted beams, new beams, or service beams.
  • Activating a transmit beam may also be referred to as activating a transmit beam, activating a downlink transmit beam, or activating a transmitting end beam.
  • the network device sends the first indication information to the terminal device, and the first indication information is used to indicate that the service beam of the terminal device is a spatial interpolation beam or a concurrent multi-beam.
  • the network device indicates a specific service beam to the terminal device, thereby improving the efficiency and accuracy of beam indication.
  • the first indication information indicates that the service beam of the terminal device is a spatial interpolation beam
  • the first indication information is also used to indicate at least one of the following: the spatial interpolation coefficient corresponding to each activated transmission beam in multiple activated transmission beams, the HPBW difference of the service beam relative to one of the multiple activated transmission beams, or the first time offset, and the first time offset is used to indicate or determine the effective time of the spatial interpolation beam.
  • the first indication information can also indicate the corresponding spatial interpolation parameters, so as to facilitate the terminal device to determine the spatial interpolation beam based on these spatial interpolation parameters.
  • the terminal device can accurately determine the service beam, improve the accuracy of the service beam determined by the terminal device, and help improve the transmission performance between the terminal device and the network device.
  • the HPBW difference of the service beam relative to one of the multiple activated transmission beams can also be called the HPBW difference of the transmission beam used by the network device relative to one of the multiple activated transmission beams.
  • the spatial interpolation coefficients corresponding to each of the multiple activated transmit beams, the HPBW difference of the service beam relative to one of the multiple activated transmit beams, and/or the first time offset may also be carried in other information, which is not specifically limited in this application.
  • the spatial interpolation coefficient corresponding to the activated transmit beam includes: the spatial interpolation coefficient of the departure angle of the reference signal corresponding to the activated transmit beam. It can be seen that the terminal device can first determine the angle of the transmit beam used by the network device through the spatial interpolation coefficient of the departure angle of the reference signal corresponding to the activated transmit beam, and then determine the angle of the service beam through the beam pairing relationship. Thereby improving the accuracy of the service beam determined by the terminal device.
  • the spatial interpolation coefficient of the departure angle includes the spatial interpolation coefficient of the azimuth angle and/or the spatial interpolation coefficient of the zenith angle. It can be seen that the spatial interpolation coefficient is described from two angle dimensions, thereby improving the accuracy of the service beam determined by the terminal device.
  • the value of the first indication information is the first value of the first code point
  • the first value of the first code point is used to indicate at least one of the following: a spatial interpolation coefficient corresponding to each activated transmit beam, an HPBW difference, or a first time offset. This is conducive to reducing the processing complexity of the terminal device and reducing the signaling overhead.
  • the method further includes: the network device sends a first mapping relationship to the terminal device, the first mapping relationship including a mapping relationship between different values of the first code point and at least one of a spatial interpolation coefficient, an HPBW difference, and a time offset.
  • the network device sends a first mapping relationship to the terminal device, the first mapping relationship including a mapping relationship between different values of the first code point and at least one of a spatial interpolation coefficient, an HPBW difference, and a time offset. This facilitates the network device to indicate corresponding spatial interpolation parameters to the terminal device through the code point. This is conducive to reducing the processing complexity of the terminal device and reducing signaling overhead.
  • the first indication information indicates that the service beam of the terminal device is a concurrent multi-beam, and the first indication information is further used to indicate at least one of the following: an AOD deviation of the service beam relative to each of the multiple activated transmission beams;
  • the first indication information may also indicate the relevant parameters of the corresponding concurrent multi-beams, so as to facilitate the terminal device to determine the concurrent multi-beams based on these relevant parameters.
  • the terminal device can accurately determine the concurrent multi-beams. Improve the accuracy of the concurrent multi-beams determined by the terminal device. It is conducive to improving the transmission performance between the terminal device and the network device.
  • the AOD offset of the service beam relative to each of the multiple activated transmission beams can also be referred to as the AOD offset of the transmission beam adopted by the network device relative to each of the multiple activated transmission beams.
  • the HPBW offset of the service beam relative to each of the activated transmission beams can also be referred to as the HPBW offset of the transmission beam adopted by the network device relative to each of the activated transmission beams.
  • the AOD offset of the service beam relative to each activated transmit beam in multiple activated transmit beams, the HPBW offset of the service beam relative to each activated transmit beam, and/or the second time offset may also be carried in other information, which is not limited in this application.
  • the AOD offset of the service beam relative to each activated transmission beam in the multiple activated transmission beams includes: the offset of the service beam relative to the departure angle of the reference signal corresponding to each activated transmission beam, and/or, the offset of the service beam relative to the zenith angle of the reference signal corresponding to each activated transmission beam. It can be seen that the AOD offset is described from two angle dimensions, thereby improving the accuracy of the service beam determined by the terminal device.
  • the first indication information is also used to indicate the power of the concurrent multi-beams, so that the terminal device can determine the transmission power of each beam in the concurrent multi-beams, thereby facilitating the improvement of the transmission performance between the terminal device and the network device.
  • the value of the first indication information is the first value of the second code point
  • the first value of the second code point is used to indicate at least one of the following: an AOD offset of the service beam relative to each of the multiple activated transmission beams, an HPBW offset corresponding to the service beam relative to each of the activated transmission beams, or a second time offset. This helps to reduce the processing complexity of the terminal device and reduce the indication signaling overhead.
  • the method further includes: the network device sends a second mapping relationship to the terminal device, the second mapping relationship including a mapping relationship between different values of the second code point and at least one of the AOD offset, the HPBW offset, and the time offset.
  • the network device sends a second mapping relationship to the terminal device, the second mapping relationship including a mapping relationship between different values of the second code point and at least one of the AOD offset, the HPBW offset, and the time offset. This facilitates the network device to indicate the corresponding concurrent multi-beam parameters to the terminal device through the code point. This is conducive to reducing the processing complexity of the terminal device and reducing the indication signaling overhead.
  • the first indication information is carried in the DCI, thereby helping to reduce the processing complexity of the terminal device and lower the indication signaling overhead.
  • multiple activated transmission beams are transmission beams selected from multiple candidate transmission beams according to the beam qualities of multiple candidate transmission beams, and the multiple candidate transmission beams belong to multiple transmission beams measured by the network device configuration terminal device, and the beam qualities of the multiple candidate transmission beams are obtained by measuring the multiple candidate transmission beams. It can be seen that the multiple activated transmission beams are multiple transmission beams selected through the measurement process.
  • the terminal device determines the service beam in combination with the multiple activated transmission beams. Thereby, the angle and/or width of the service beam can be accurately determined.
  • the method also includes: the network device sends the first configuration information to the terminal device, the first configuration information includes AOD information corresponding to multiple reference signals, and/or HPBW information corresponding to multiple reference signals, each of the multiple reference signals corresponds to a transmission beam, multiple reference signals correspond to multiple transmission beams, and multiple activated transmission beams belong to multiple transmission beams; the network device receives candidate transmission beam information and/or candidate transmission beam quality information from the terminal device, the candidate transmission beam information is used to indicate multiple candidate transmission beams, multiple candidate transmission beams belong to multiple transmission beams, and the candidate transmission beam quality information is used to indicate the beam quality corresponding to multiple candidate transmission beams.
  • the network device assists the terminal device to better measure the multiple transmission beams through the first configuration information, thereby improving the accuracy of beam measurement.
  • the terminal device selects some of the candidate transmission beams and reports them to the network device, which is conducive to the network device selecting a suitable activation transmission beam and facilitating the terminal device to accurately determine the service beam of the terminal device based on these activation transmission beams. Improve the transmission performance between terminal devices and network devices.
  • the AOD angle information corresponding to the multiple reference signals includes: an azimuth angle corresponding to each of the multiple reference signals, and/or a zenith angle corresponding to each of the multiple reference signals. Describing the angle information from two angle dimensions is conducive to improving the accuracy of the terminal device in measuring the beam.
  • the HPBW information corresponding to the multiple reference signals includes: an azimuth angle width corresponding to each of the multiple reference signals, and/or a zenith angle width corresponding to each of the multiple reference signals.
  • the HPBW information is described from two angle dimensions, thereby facilitating improving the accuracy of beam measurement by the terminal device.
  • the method further includes: the network device sends second indication information to the terminal device, the second indication information is used to indicate reference signals corresponding to multiple activated transmit beams, and the multiple activated transmit beams belong to multiple candidate transmit beams, so that the terminal device determines the service beam based on the multiple activated transmit beams.
  • the method before the network device sends the first indication information to the terminal device, the method further includes: the network device performs beam prediction to determine the type of the service beam, and the type of the service beam is a spatial interpolation beam or a concurrent multi-beam. This enables the network device to indicate the service beam and reduces the beam mismatch time between the terminal device and the network device.
  • a third aspect of the present application provides a communication device, including:
  • the transceiver module is used to receive first indication information from a network device, where the first indication information is used to indicate that a service beam of the communication device is a spatial interpolation beam or a concurrent multi-beam, where the spatial interpolation beam or the concurrent multi-beam is determined based on multiple activated transmission beams.
  • the first indication information indicates that the service beam of the communication device is a spatial interpolation beam
  • the first indication information is also used to indicate at least one of the following: a spatial interpolation coefficient corresponding to each of a plurality of activated transmit beams, an HPBW difference of the service beam relative to one of the plurality of activated transmit beams, or a first time offset, and the first time offset is used to indicate or determine the effective time of the spatial interpolation beam.
  • the first indication information includes at least one of the following: a spatial interpolation coefficient corresponding to each of a plurality of activated transmit beams, an HPBW difference of a service beam relative to one of the plurality of activated transmit beams, or a first time offset.
  • the first indication information includes at least one of the following: a spatial interpolation coefficient corresponding to one of the multiple activated transmit beams, an HPBW difference of the service beam relative to one of the multiple activated transmit beams, or a first time offset;
  • the communication device also includes a processing module; the processing module is used to determine the spatial interpolation coefficients corresponding to each of the multiple activated transmit beams based on the spatial interpolation coefficients corresponding to one of the multiple activated transmit beams.
  • activating the spatial interpolation coefficient corresponding to the transmit beam includes: activating the spatial interpolation coefficient of the AOD of the reference signal corresponding to the transmit beam.
  • the spatial interpolation coefficient of the departure angle includes the spatial interpolation coefficient of the azimuth angle and/or the spatial interpolation coefficient of the zenith angle.
  • the communication device also includes a processing module; the processing module is used to determine the angle of the service beam according to the spatial interpolation coefficients corresponding to each activated transmitting beam, and/or determine the width of the service beam according to the HPBW difference, and/or determine the effective time of the service beam according to the first time offset.
  • the processing module is also used to: measure the reference signals corresponding to multiple activated transmit beams, and obtain the multipath information corresponding to the multiple activated transmit beams; the processing module is specifically used to: determine the angle of the service beam according to the spatial domain interpolation coefficients and multipath information corresponding to each activated transmit beam, and/or determine the width of the service beam according to the HPBW difference and the multipath information.
  • the value of the first indication information is the first value of the first code point
  • the first value of the first code point is used to indicate at least one of the following: the spatial interpolation coefficient corresponding to each activated transmit beam, the HPBW difference, or the first time offset.
  • the transceiver module is also used to: receive a first mapping relationship from a network device, the first mapping relationship including a mapping relationship between different values of the first code point and at least one of a spatial interpolation coefficient, an HPBW difference, and a time offset.
  • the first indication information indicates that the service beam of the communication device is a concurrent multi-beam
  • the first indication information is also used to indicate at least one of the following: an AOD offset of the service beam relative to each activated transmit beam in a plurality of activated transmit beams, an HPBW offset corresponding to the service beam relative to each activated transmit beam, or a second time offset, and the second time offset is used to indicate the effective time of the concurrent multi-beam.
  • the AOD offset of the service beam relative to each of the multiple activated transmit beams includes: the azimuth offset of the service beam relative to the reference signal corresponding to each activated transmit beam, and/or the zenith angle offset of the service beam relative to the reference signal corresponding to each activated transmit beam.
  • the first indication information is also used to indicate the power of the concurrent multiple beams.
  • the communication device further includes a processing module; the processing module is configured to: The angle of the service beam is determined according to the HPBW offset, and/or the width of the service beam is determined according to the HPBW offset, and/or the effective time of the service beam is determined according to the second time offset.
  • the communication device also includes a processing module; the processing module is used to measure multiple activated transmit beams to obtain multipath information corresponding to the multiple activated transmit beams; the processing module is specifically used to: determine the angle of the service beam according to the AOD offset multipath information, and/or, determine the width of the service beam according to the HPBW offset and multipath information.
  • the value of the first indication information is the first value of the second code point
  • the first value of the second code point is used to indicate at least one of the following: an AOD offset of a service beam relative to each of a plurality of activated transmit beams, an HPBW offset corresponding to the service beam relative to each activated transmit beam, or a second time offset.
  • the transceiver module is also used to: receive a second mapping relationship from the network device, the second mapping relationship including a mapping relationship between different values of the second code point and at least one of the AOD offset, HPBW offset, and time offset.
  • the first indication information is carried in the DCI.
  • multiple activated transmission beams are transmission beams selected from multiple candidate transmission beams based on the beam qualities of multiple candidate transmission beams, the multiple candidate transmission beams belong to multiple transmission beams measured by a network device configuration communication device, and the beam qualities of the multiple candidate transmission beams are obtained by measuring the multiple candidate transmission beams.
  • the transceiver module is also used to: receive first configuration information from the network device, the first configuration information includes AOD information corresponding to multiple reference signals, and/or HPBW information corresponding to multiple reference signals, each of the multiple reference signals corresponds to a transmission beam, multiple reference signals correspond to multiple transmission beams, and multiple activated transmission beams belong to multiple transmission beams;
  • the communication device also includes a processing module; the processing module is used to measure multiple transmission beams according to the first configuration information to obtain beam qualities corresponding to the multiple transmission beams;
  • the transceiver module is also used to: send candidate transmission beam information and/or candidate transmission beam quality information to the network device, the candidate beam information is used to indicate multiple candidate transmission beams, multiple candidate transmission beams belong to multiple transmission beams, and the candidate beam quality information is used to indicate the beam qualities corresponding to the multiple candidate transmission beams.
  • the AOD angle information corresponding to the multiple reference signals respectively includes: the azimuth angle corresponding to each reference signal in the multiple reference signals, and/or the zenith angle corresponding to each reference signal in the multiple reference signals.
  • the HPBW information corresponding to the multiple reference signals respectively includes: an azimuth angle width corresponding to each reference signal in the multiple reference signals, and/or a zenith angle width corresponding to each reference signal in the multiple reference signals.
  • the transceiver module is also used to: receive second indication information from the network device, the second indication information is used to indicate reference signals corresponding to multiple activated transmit beams, and the multiple activated transmit beams belong to multiple candidate transmit beams.
  • a fourth aspect of the present application provides a communication device, including:
  • the transceiver module is used to send first indication information to the terminal device, where the first indication information is used to indicate that the service beam of the terminal device is a spatial interpolation beam or a concurrent multi-beam, and the spatial interpolation beam or the concurrent multi-beam is determined based on multiple activated transmission beams.
  • the first indication information indicates that the service beam of the terminal device is a spatial interpolation beam
  • the first indication information is also used to indicate at least one of the following: a spatial interpolation coefficient corresponding to each of a plurality of activated transmit beams, an HPBW difference of the service beam relative to one of the plurality of activated transmit beams, or a first time offset, and the first time offset is used to indicate the effective time of the spatial interpolation beam.
  • activating the spatial interpolation coefficient corresponding to the transmit beam includes: activating the spatial interpolation coefficient of the departure angle of the reference signal corresponding to the transmit beam.
  • the spatial interpolation coefficient of the departure angle includes the spatial interpolation coefficient of the azimuth angle and/or the spatial interpolation coefficient of the zenith angle.
  • the value of the first indication information is the first value of the first code point
  • the first value of the first code point is used to indicate at least one of the following: the spatial interpolation coefficient corresponding to each activated transmit beam, the HPBW difference, or the first time offset.
  • the transceiver module is also used to: send a first mapping relationship to the terminal device, the first mapping relationship including a mapping relationship between different values of the first code point and at least one of the spatial interpolation coefficient, HPBW difference, and time offset.
  • the first indication information indicates that the service beam of the terminal device is a concurrent multi-beam
  • the first indication information indicates that the service beam of the terminal device is a concurrent multi-beam
  • An indication information is also used to indicate at least one of the following: an AOD offset of a service beam relative to each of a plurality of activated transmit beams, an HPBW offset corresponding to the service beam relative to each of the activated transmit beams, or a second time offset, wherein the second time offset is used to indicate the effective time of concurrent multiple beams.
  • the AOD offset of the service beam relative to each activated transmit beam in the multiple activated transmit beams includes: the offset of the departure angle of the service beam relative to the reference signal corresponding to each activated transmit beam, and/or, the offset of the zenith angle of the service beam relative to the reference signal corresponding to each activated transmit beam.
  • the first indication information is also used to indicate the power of concurrent multiple beams.
  • the value of the first indication information is the first value of the second code point
  • the first value of the second code point is used to indicate at least one of the following: an AOD offset of a service beam relative to each activated transmit beam in a plurality of activated transmit beams, an HPBW offset corresponding to the service beam relative to each activated transmit beam, or a second time offset.
  • the transceiver module is also used to: send a second mapping relationship to the terminal device, the second mapping relationship including a mapping relationship between different values of the second code point and at least one of the AOD offset, HPBW offset, and time offset.
  • the first indication information is carried in the DCI.
  • the multiple activated transmit beams are transmit beams selected from multiple candidate transmit beams based on the beam qualities of the multiple candidate transmit beams, the multiple candidate transmit beams belong to the multiple transmit beams measured by the terminal device configured by the communication device, and the beam qualities of the multiple candidate transmit beams are obtained by measuring the multiple candidate transmit beams.
  • the transceiver module is also used to: send first configuration information to the terminal device, the first configuration information includes AOD information corresponding to multiple reference signals respectively, and/or HPBW information corresponding to multiple reference signals respectively, each of the multiple reference signals corresponds to a transmission beam, multiple reference signals correspond to multiple transmission beams, and multiple activated transmission beams belong to multiple transmission beams; receive candidate transmission beam information and/or candidate transmission beam quality information from the terminal device, the candidate transmission beam information is used to indicate multiple candidate transmission beams, multiple candidate transmission beams belong to multiple transmission beams, and the candidate transmission beam quality information is used to indicate the beam qualities corresponding to the multiple candidate transmission beams respectively.
  • the AOD angle information corresponding to the multiple reference signals respectively includes: the azimuth angle corresponding to each reference signal in the multiple reference signals, and/or the zenith angle corresponding to each reference signal in the multiple reference signals.
  • the HPBW information corresponding to the multiple reference signals respectively includes: an azimuth angle width corresponding to each reference signal in the multiple reference signals, and/or a zenith angle width corresponding to each reference signal in the multiple reference signals.
  • the transceiver module is also used to: send second indication information to the terminal device, the second indication information is used to indicate reference signals corresponding to multiple activated transmit beams, and the multiple activated transmit beams belong to multiple candidate transmit beams.
  • the communication device also includes a processing module; the processing module is used to perform beam prediction to determine the type of the service beam, and the type of the service beam is a spatial interpolation beam or a concurrent multi-beam.
  • the present application provides a communication device, comprising: a processor and a memory.
  • the memory stores a computer program or a computer instruction
  • the processor is used to call and run the computer program or the computer instruction stored in the memory, so that the processor implements any one of the implementation methods in the first aspect or the second aspect.
  • the communication device further includes a transceiver, and the processor is used to control the transceiver to send and receive signals.
  • the present application provides a communication device, comprising a processor and an interface circuit, wherein the processor is used to communicate with other devices through the interface circuit and execute the method described in the first aspect or the second aspect.
  • the processor comprises one or more.
  • the present application provides a communication device, including a processor, which is connected to a memory and is used to call a program stored in the memory to execute the method described in the first aspect or the second aspect.
  • the memory can be located inside the communication device or outside the communication device.
  • the processor includes one or more.
  • the communication device of the third to seventh aspects above may be a chip or a chip system.
  • An eighth aspect of the present application provides a computer program product comprising computer instructions, characterized in that when the computer program product is run on a computer, the computer is caused to execute any one of the implementation methods of the first aspect or the second aspect.
  • a ninth aspect of the present application provides a computer-readable storage medium, comprising computer instructions, which, when executed on a computer, enable the computer to execute any one of the implementation methods of the first aspect or the second aspect.
  • a tenth aspect of the present application provides a chip device, including a processor, configured to call a computer program or a computer instruction in a memory, So that the processor executes any implementation of the first aspect or the second aspect above.
  • the processor is coupled to the memory via an interface.
  • a communication system which includes a terminal device and a network device; the terminal device is used to execute the method shown in the first aspect, and the network device is used to execute the method shown in the second aspect.
  • the terminal device receives the first indication information from the network device.
  • the first indication information is used to indicate that the service beam of the terminal device is a spatial interpolation beam or a concurrent multi-beam.
  • the spatial interpolation beam or the concurrent multi-beam is determined based on multiple activated transmission beams.
  • the network device indicates a specific service beam to the terminal device, and the service beam can be a spatial interpolation beam or a concurrent multi-beam. Improve the efficiency and accuracy of beam indication.
  • FIG1 is a schematic diagram of a communication system used in an embodiment of the present application.
  • FIG2 is another schematic diagram of a communication system used in an embodiment of the present application.
  • FIG3 is a schematic diagram of a scenario in which a base station indicates two TCI states to a terminal device according to an embodiment of the present application
  • FIG4 is a schematic diagram of an embodiment of a beam indication method according to an embodiment of the present application.
  • FIG5A is a schematic diagram of a scenario of a beam indication method according to an embodiment of the present application.
  • FIG5B is a schematic diagram of another scenario of the beam indication method according to an embodiment of the present application.
  • FIG5C is a schematic diagram of another scenario of the beam indication method according to an embodiment of the present application.
  • FIG6 is a schematic diagram of another embodiment of the beam indication method according to an embodiment of the present application.
  • FIG7 is another schematic diagram of a beam indication method according to an embodiment of the present application.
  • FIG8 is a schematic diagram of another embodiment of the beam indication method according to an embodiment of the present application.
  • FIG9 is a schematic diagram of a structure of a communication device according to an embodiment of the present application.
  • FIG10 is another schematic diagram of the structure of the communication device according to the embodiment of the present application.
  • FIG11 is a schematic diagram of a structure of a terminal device according to an embodiment of the present application.
  • FIG. 12 is a schematic diagram of the structure of a network device according to an embodiment of the present application.
  • the embodiment of the present application provides a beam indication method and a related device, which is used for a terminal device to receive first indication information from a network device.
  • the first indication information is used to indicate that the service beam of the terminal device is a spatial interpolation beam or a concurrent multi-beam.
  • the network device indicates a specific service beam to the terminal device. The efficiency and accuracy of beam indication are improved.
  • references to "one embodiment” or “some embodiments” etc. described in this application mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application.
  • the phrases “in one embodiment”, “in some embodiments”, “in some other embodiments”, “in some other embodiments”, etc. that appear at different places in this specification do not necessarily all refer to the same embodiment, but mean “one or more but not all embodiments", unless otherwise specifically emphasized in other ways.
  • the terms “including”, “comprising”, “having” and their variations all mean “including but not limited to”, unless otherwise specifically emphasized in other ways.
  • At least one of a, b, or c can mean: a, b, c; a and b; a and c; b and c; or a, b, and c.
  • a, b, and c can be single or multiple.
  • indication can include direct indication, indirect indication, explicit indication, implicit indication.
  • indication information can include direct indication, indirect indication, explicit indication, implicit indication.
  • the information indicated by the indication information is referred to as the information to be indicated.
  • the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated, etc., or the information to be indicated can be indirectly indicated by indicating other information, wherein there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each information agreed in advance (such as specified by the protocol), thereby reducing the indication overhead to a certain extent.
  • the information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately, and the sending period and/or sending time of these sub-information can be the same or different.
  • the specific sending method is not limited in this application.
  • the sending period and/or sending time of these sub-information can be pre-defined, for example, pre-defined according to a protocol, or can be configured by the transmitting end device by sending configuration information to the receiving end device.
  • the technical solution of the present application can be applied to various communication systems.
  • 5G system new radio (NR) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), mobile communication system after 5G network (for example, 6G mobile communication system), vehicle to everything (V2X) communication system, device to device (D2D) communication system, Internet of Things communication system, industrial Internet communication system, or satellite communication system.
  • NR new radio
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • V2X vehicle to everything
  • D2D device to device
  • Internet of Things communication system Internet of Things communication system
  • industrial Internet communication system or satellite communication system.
  • WiFi wireless fidelity
  • Bluetooth short-range wireless communication systems
  • the communication system to which the present application is applicable includes terminal equipment and network equipment.
  • the terminal equipment and network equipment of the present application are introduced below.
  • the terminal device may be a wireless terminal device capable of receiving network device scheduling information and indication information.
  • the terminal device may be a device that provides voice and/or data connectivity to a user, or a handheld device with wireless connection function, or other processing device connected to a wireless modem.
  • Terminal equipment also known as user equipment (UE), mobile station (MS), mobile terminal (MT), customer premise equipment (CPE), etc.
  • Terminal equipment is equipment that includes wireless communication functions (providing voice/data connectivity to users).
  • handheld devices with wireless connection functions or vehicle-mounted devices, etc.
  • terminal devices are: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in Internet of Vehicles, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes.
  • the wireless terminal in self-driving can be a drone, a helicopter, or an airplane.
  • the wireless terminal in Internet of Vehicles can be a vehicle-mounted device, a vehicle-mounted device, a vehicle-mounted module, a vehicle, or a ship.
  • the wireless terminal in industrial control can be a camera, a robot, or a robotic arm.
  • the wireless terminals in a smart home can be a TV, air conditioner, vacuum cleaner, speaker, or set-top box.
  • the terminal device can be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module or control unit in the device or apparatus shown above, and this application does not limit it. It should be noted that in this application, when referring to the terminal device, it can refer to the terminal device itself, or it can refer to the chip, functional module or integrated circuit in the terminal device that completes the method provided in this application, and this application does not limit it.
  • a network device may be a device in a wireless network.
  • a network device may be a device deployed in a wireless access network to provide wireless communication functions for a terminal device.
  • a network device may be a radio access network (RAN) node that connects a terminal device to a wireless network, and may also be referred to as an access network device, a RAN entity, an access node, a network node, or a communication device.
  • RAN radio access network
  • the network device may be an access network device for a cellular system related to the 3rd Generation Partnership Project (3GPP). For example, a 4G communication system, or a 5G communication system.
  • the network device may also be an access network device in an open access network (open RAN, O-RAN or ORAN) or a cloud radio access network (cloud radio access network, CRAN).
  • the network device may also be an access network device in a communication system obtained by integrating two or more of the above communication systems.
  • the network device may also be a satellite in a satellite communication system.
  • the network equipment includes, but is not limited to, evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) system, macro base station, micro base station, wireless relay node, donor node, wireless controller in CRAN scenario, wireless backhaul node, transmission point (TP) or transmission and receiving point (TRP), etc. It can also be network equipment in 5G mobile communication system.
  • eNB evolved Node B
  • RNC radio network controller
  • NB Node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station e.g., home evolved NodeB, or home Node B, HNB
  • BBU baseband unit
  • AP access point
  • WIFI wireless fidelity
  • macro base station macro base station
  • micro base station wireless
  • a next generation NodeB gNB
  • TRP next generation NodeB
  • TP in an NR system
  • the network device may also be a network node constituting a gNB or a transmission point.
  • a centralized unit CU
  • DU distributed unit
  • CU-CP centralized unit-control plane
  • CU-UP centralized unit-user plane
  • RU radio unit
  • the CU and DU may be separately configured or may be included in the same network element, such as a BBU.
  • the RU may be included in a radio frequency device or a radio frequency unit.
  • the network device may also be a server, a wearable device, a vehicle, or an onboard device.
  • the access network device in V2X technology can be a road side unit (RSU).
  • CU or CU-CP and CU-UP
  • DU or RU may also have different names, but those skilled in the art can understand their meanings.
  • CU may also be called an open centralized unit (O-CU) or an open CU
  • DU may also be called an open distributed unit (O-DU)
  • CU-CP may also be called an open-centralized unit-control plane (O-CU-CP)
  • CU-UP may also be called an open-centralized unit-user plane (O-CU-UP)
  • RU may also be called an open radio unit (O-RU), which is not specifically limited in this application.
  • Any of the CU, CU-CP, CU-UP, DU and RU in this application may be implemented together through a software module, a hardware module, or a combination of a software module and a hardware module.
  • each network element may implement the protocol layer functions shown in Table 1 below.
  • the network device in the present application may be one or more network elements in Table 1 above.
  • the access network device includes at least one CU and at least one DU.
  • the access network device also includes at least one RU.
  • the following is an example of an access network device including a CU and a DU.
  • the CU has some functions of the core network, and the CU may include a CU-CP and a CU-UP.
  • the CU and the DU may be configured according to the protocol layer functions of the wireless network they implement.
  • the CU is configured to Implement the functions of the packet data convergence protocol (PDCP) layer and the protocol layers above (for example, the RRC layer and/or the SDAP layer).
  • the DU is configured to implement the functions of the protocol layers below the PDCP layer (for example, the RLC layer, the MAC layer, and/or the physical (PHY) layer).
  • the CU is configured to implement the functions of the protocol layers above the PDCP layer (such as the RRC layer and/or the SDAP layer), and the DU is configured to implement the functions of the PDCP layer and the protocol layers below (for example, the RLC layer, the MAC layer, and/or the PHY layer, etc.).
  • the protocol layers above the PDCP layer such as the RRC layer and/or the SDAP layer
  • the DU is configured to implement the functions of the PDCP layer and the protocol layers below (for example, the RLC layer, the MAC layer, and/or the PHY layer, etc.).
  • the CU-CP is used to implement the control plane function of the CU
  • the CU-UP is used to implement the user plane function of the CU.
  • the CU is configured to implement the functions of the PDCP layer, the RRC layer, and the SDAP layer
  • the CU-CP is used to implement the control plane function of the RRC layer and the PDCP layer
  • the CU-UP is used to implement the user plane function of the SDAP layer and the PDCP layer.
  • the CU-CP can interact with network elements in the core network for implementing control plane functions.
  • the network elements in the core network for implementing control plane functions can be access and mobility function network elements, such as access and mobility management function (AMF) in 5G systems.
  • the access and mobility function network elements are responsible for mobility management in mobile networks, such as location update of terminal devices, registration network of terminal devices, switching of terminal devices, etc.
  • CU-UP can interact with network elements in the core network that implement user plane functions.
  • Network elements in the core network that implement user plane functions such as the User Plane Function (UPF) in the 5G system, are responsible for forwarding and receiving data in terminal devices.
  • UPF User Plane Function
  • the above configuration of CU and DU is only an example, and the functions of CU and DU can also be configured as needed.
  • the CU or DU can be configured to have the functions of more protocol layers, or the CU or DU can be configured to have partial processing functions of the protocol layer.
  • some functions of the RLC layer and the functions of the protocol layers above the RLC layer are set in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are set in the DU.
  • the functions of the CU or DU can be divided according to the service type or other system requirements. For example, by delay, the functions that need to meet the smaller delay requirements for processing time are set in the DU, and the functions that do not need to meet the delay requirements are set in the CU.
  • DU and RU can cooperate to jointly implement the functions of the PHY layer.
  • a DU can be connected to one or more RUs.
  • the functions of DU and RU can be configured in a variety of ways according to the design.
  • DU is configured to implement baseband functions
  • RU is configured to implement mid-RF functions.
  • DU is configured to implement high-level functions in the PHY layer
  • RU is configured to implement low-level functions in the PHY layer or to implement the low-level functions and RF functions.
  • the high-level functions in the physical layer may include a part of the functions of the physical layer, which is closer to the MAC layer, and the low-level functions in the physical layer may include another part of the functions of the physical layer, which is closer to the mid-RF side.
  • the network device can also be a core network device.
  • the functional entity of the network device for the control plane includes the access and mobility management function (AMF) or the session management function (SMF).
  • AMF is responsible for user access management, security authentication, mobility management, etc.
  • the functional entity of the data plane includes the user plane function (UPF).
  • UPF is responsible for managing the transmission of user plane data, traffic statistics and other functions.
  • the network device can be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module or control unit in the aforementioned device or apparatus, and this application does not limit it. It should be noted that in this application, when referring to a network device, it can refer to the network device itself, or it can refer to a chip, functional module or integrated circuit in the network device that completes the method provided in this application, and this application does not limit it.
  • FIG1 is a schematic diagram of a communication system used in an embodiment of the present application.
  • the communication system includes at least one network device and at least one terminal device.
  • the communication system includes a network device 111, a terminal device 121, and a terminal device 122.
  • the network device 111 can transmit with the terminal device 121 using a beam.
  • the network device 111 can transmit with the terminal device 122 using a beam.
  • FIG2 is another schematic diagram of a communication system used in an embodiment of the present application.
  • the communication system includes at least one network device and at least one terminal device.
  • the communication system includes a network device 211, a network device 212, a network device 213, and a terminal device 221.
  • the terminal device 221 may be provided with communication services by multiple network devices.
  • the network device 211 may use beam 1 to transmit with the terminal device 221
  • the network device 212 may use beam 2 to transmit with the terminal device 221.
  • the network device 213 may use beam 3 to transmit with the terminal device 221. That is to say, a terminal device may be provided with communication services by multiple network devices at the same time.
  • a beam is a communication resource.
  • a beam can be a wide beam, a narrow beam, or other types of beams.
  • the technology used to form the beam can be beamforming technology or other technical means.
  • Beamforming technology can specifically include digital beamforming technology, analog beamforming technology, and hybrid digital/analog beamforming technology. Different beams can be considered as different resources.
  • a beam may be referred to as a spatial domain filter, a spatial filter, a spatial domain parameter, a spatial parameter, a spatial parameter, a spatial domain setting, a spatial setting, QCL information, a QCL assumption, or a QCL indication, etc.
  • the beam may be indicated by a TCI-state parameter or by a spatial relation parameter. Therefore, in this application, a beam may be replaced by a spatial filter, a spatial filter, a spatial parameter, a spatial parameter, a spatial setting, a spatial setting, quasi-co-location (QCL) information, a QCL assumption, a QCL indication, a TCI-state) (including uplink TCI-state, downlink TCI-state), or a spatial relation, etc.
  • QCL quasi-co-location
  • the transmitter can send the same information or different information through different beams.
  • multiple beams with the same or similar communication characteristics can be regarded as one beam.
  • One beam can include one or more antenna ports for transmitting data channels, control channels, and detection signals.
  • a beam used to transmit a signal may be referred to as a transmission beam (Tx beam), a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, a spatial transmission parameter, a spatial domain transmission setting, or a spatial transmission setting.
  • An uplink transmit beam may be indicated by any of a spatial relationship, a TCI-state, and a sounding reference signal (SRS) resource (indicating a transmit beam using the SRS). Therefore, an uplink transmit beam may also be replaced by an SRS resource.
  • SRS sounding reference signal
  • the beam used to receive the signal may be referred to as a reception beam (Rx beam), a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter or a spatial reception parameter, a spatial domain reception setting, or a spatial reception setting.
  • a reception beam Rx beam
  • a spatial domain reception filter a spatial domain reception filter
  • a spatial domain reception parameter or a spatial reception parameter a spatial domain reception setting
  • a spatial domain reception setting a spatial domain reception setting
  • a transmit beam may refer to the distribution of signal strength in different directions of space after a signal is transmitted by an antenna
  • a receive beam may refer to the distribution of signal strength in different directions of space of a wireless signal received from an antenna. It is understandable that one or more antenna ports forming a beam may also be regarded as an antenna port set.
  • the transmitter When the transmitter uses low-frequency or medium-frequency bands, it can send signals omnidirectionally or at a wider angle.
  • an antenna array consisting of many antenna elements can be arranged at the transmitter and receiver.
  • the transmitter sends signals with a certain beamforming weight, so that the transmitted signal forms a beam with spatial directivity.
  • the antenna array is used at the receiver to receive the signal with a certain beamforming weight. This is beneficial to increase the received power of the signal at the receiver and combat path loss.
  • Quasi-colocation can also be called quasi-colocation.
  • Antenna ports with a QCL relationship will experience the same or close channel parameters, or the channel parameters experienced by one antenna port can be used to determine the channel parameters experienced by another antenna port with a QCL relationship with the antenna port, or the difference in channel parameters experienced by the two antenna ports is less than a certain threshold.
  • the antenna port also referred to as port, refers to a transmitting antenna identified by a receiving device or a transmitting antenna that can be distinguished in space.
  • An antenna port can be configured for each virtual antenna, each virtual antenna can be a weighted combination of multiple physical antennas, and each antenna port can correspond to a reference signal port.
  • the channel parameters may include one or more of the following: delay spread, Doppler spread, Doppler shift, average delay, or average gain and spatial reception parameters.
  • the spatial reception parameters may include at least one of the following: angle of arrival (AOA), average AOA, AOA spread, angle of departure (AOD), average angle of departure AOD, AOD spread, receiving antenna spatial correlation parameter, transmitting antenna spatial correlation parameter, transmitting beam, receiving beam, or resource identifier.
  • the angles shown in the above channel parameters may be decomposition values of different dimensions, or a combination of decomposition values of different dimensions.
  • the above antenna ports are antenna ports with different antenna port numbers, and/or antenna ports with the same antenna port number that send or receive information at different times, and/or at different frequencies, and/or at different code domain resources, and/or antenna ports with different antenna port numbers that send or receive channels at different times, and/or at different frequencies, and/or at different code domain resources.
  • the above resource identifier may be used to indicate a resource.
  • the resource identifier may include a channel state information reference signal (CSI-RS) resource identifier, an SRS resource identifier, a synchronization signal/physical broadcast channel block (SSB) resource identifier, a resource identifier of a preamble sequence transmitted on a physical random access channel (PRACH), or a demodulation reference signal (DMRS) resource identifier.
  • CSI-RS channel state information reference signal
  • SRS synchronization signal/physical broadcast channel block
  • PRACH physical random access channel
  • DMRS demodulation reference signal
  • the QCL relationship can be divided into the following four types based on different parameters:
  • Type A Doppler shift, Doppler spread, average delay, and delay spread.
  • Type B Doppler shift and Doppler spread.
  • Type C Doppler frequency shift, average delay.
  • Type D space receiving parameters.
  • QCL The QCL involved in this application is a QCL relationship of type D.
  • QCL can be understood as a QCL of type D, that is, a QCL defined based on spatial reception parameters.
  • this application does not exclude the possibility of other terms defined in future agreements to express the same or similar meanings.
  • the QCL relationship between the ports of the downlink signal may be a QCL relationship of type D
  • the QCL relationship between the ports of the uplink signal may be a QCL relationship of type D. It can be understood that the QCL relationship between the ports of the downlink signal or the QCL relationship between the ports of the uplink signal indicates that the two signals have the same AOA or AOD, which is used to indicate that they have the same receiving beam or transmitting beam.
  • the QCL relationship between the ports corresponding to the downlink signal and the uplink signal is a QCL relationship of type D.
  • the QCL relationship between the ports corresponding to the downlink signal and the uplink signal can indicate that the AOA and AOD corresponding to the downlink signal and the uplink signal have a corresponding relationship, that is, the beam reciprocity can be used to determine the uplink transmit beam according to the downlink receive beam, or to determine the downlink receive beam according to the uplink transmit beam.
  • the signal transmitted on the port with a spatial QCL relationship may also have a corresponding beam, and the corresponding beam includes at least one of the following: the same or close receiving beam, the same or close transmitting beam, the transmitting beam corresponding to the receiving beam (corresponding to the scenario with beam reciprocity), or the receiving beam corresponding to the transmitting beam (corresponding to the scenario with beam reciprocity).
  • the signal of the ship speed and the signal on the port with a spatial QCL relationship may also be understood as receiving or sending the signal using the same spatial filter.
  • the spatial filter may include at least one of the following: precoding, the weight of the antenna port, the phase deflection of the antenna port, or the amplitude gain of the antenna port.
  • the signal transmitted on the port with a spatial QCL relationship may also be understood as having a corresponding beam pair link (BPL), and the corresponding BPL includes at least one of the following: the same downlink BPL, the same uplink BPL, the uplink BPL corresponding to the downlink BPL, or the downlink BPL corresponding to the uplink BPL. Therefore, the spatial reception parameter (i.e., the QCL relationship of type D) may be understood as a parameter for indicating the direction information corresponding to the receiving beam and/or the transmitting beam, respectively.
  • the spatial reception parameter i.e., the QCL relationship of type D
  • the spatial reception parameter may be understood as a parameter for indicating the direction information corresponding to the receiving beam and/or the transmitting beam, respectively.
  • Beam pair link can also be called beam pairing relationship.
  • the pairing relationship between the transmit beam and the receive beam can also be called the pairing relationship between the spatial transmit filter and the spatial receive filter. Transmitting signals between the transmit beam and the receive beam with a beam pairing relationship can obtain a larger beamforming gain.
  • the transmitting end may send a reference signal by means of beam scanning.
  • the receiving end may also receive the reference signal by means of beam scanning.
  • the transmitting end may form beams with different directivities in space by means of beamforming, and may poll on multiple beams with different directivities to transmit the reference signal through beams with different directivities, so that the power of the reference signal in the direction pointed by the transmitting beam can be maximized.
  • the receiving end may also form receiving beams corresponding to different spatial directions and different directivities by means of beamforming, and may poll on multiple beams with different directivities to receive the reference signal through beams with different directivities, so that the power of the reference signal received by the receiving end can be maximized in the direction pointed by the receiving beam.
  • Each transmitting beam and each receiving beam are traversed between the transmitting end and the receiving end.
  • the receiving end can perform channel measurement based on the received reference signal and report the measurement result to the transmitting end.
  • the receiving end can report the reference signal resource with a larger reference signal receiving power (RSRP) to the transmitting end, such as the receiving end device reporting the identifier of the reference signal resource, so that the transmitting end can use the beam pairing relationship with better channel quality to send and receive signals when transmitting data or signaling.
  • RSRP reference signal receiving power
  • Reference signal used for channel measurement, channel estimation, and/or beam quality monitoring, etc.
  • Reference signal resource can be used to configure the transmission properties of the reference signal, such as the time-frequency resource location, port mapping relationship, power factor, and scrambling code, etc.
  • the transmitter can transmit the reference signal based on the reference signal resource, and the receiver can receive the reference signal based on the reference signal resource.
  • the reference signal involved in the embodiments of the present application may include a CSI-RS or a synchronization signal block (SSB).
  • the reference signal resource may include a CSI-RS resource or an SSB resource.
  • each reference signal resource may correspond to an identifier of a reference signal resource. For example, a CSI-RS resource indicator (CSI-RS resource indicator, CRI) or an SSB resource indicator (SSBRI).
  • CSI-RS resource indicator CRI
  • SSBRI SSB resource indicator
  • SSB resources can also be understood as synchronization signal/physical broadcast channel block (SS/PBCHblock) resources.
  • SSB resources and SS/PBCHblock resources can represent the same meaning, and SSB resources and SS/PBCHblock resource can represent the same meaning.
  • SSB can also refer to SSB resources. Therefore, the SSB resource identifier is sometimes also referred to as the SSB identifier (SSB index).
  • time domain behaviors may be indicated by different time domain behavior parameters.
  • the time domain behavior may include periodic, semi-persistent (SP) and aperiodic (AP).
  • the CSI-RS may include: periodic CSI-RS, aperiodic CSI-RS and semi-persistent CSI-RS.
  • TCI It can also be called TCI state (TCI-state).
  • TCI state TCI-state
  • the correct beams need to be used between the network device and the terminal device to achieve correct transmission.
  • the network device In downlink transmission, the network device needs to indicate to the terminal device the downlink transmission beam it uses. The terminal device can determine a suitable receiving beam based on the downlink transmission beam, and the receiving beam is used to receive information from the network device.
  • the network device also needs to indicate to the terminal device which uplink transmission beam the terminal device uses to send information to the network device.
  • the network device can determine the uplink transmission beam with better signal quality for the terminal device.
  • Both the uplink transmission beam and the downlink transmission beam can be indicated by the corresponding TCI state. Specifically, the downlink transmission beam can be indicated by the downlink TCI state, and the uplink transmission beam can be indicated by the uplink TCI state.
  • the network device can indicate the TCI state to the terminal device through the TCI field in the downlink control information (DCI).
  • DCI downlink control information
  • the size of the TCI field is 3 bits, which can be specifically represented as 8 different field values (codepoint).
  • Each field value of the TCI field can be associated with an index of a TCI state.
  • the index of the TCI state can uniquely identify a TCI state, which can be a downlink TCI state or an uplink TCI state.
  • Each field value of the TCI field can also be associated with two TCI state indexes, which can uniquely identify two TCI states, which can include a downlink TCI state and an uplink TCI state.
  • the downlink TCI state includes several parameters, through which the terminal device can determine the relevant information of the downlink transmit beam, thereby determining the appropriate receive beam to receive information from the network device.
  • the TCI state is configured by the network device to each terminal device. The structure of the downlink TCI state is shown below:
  • Each TCI state includes an index of its own (tci-StateId) and two quasi-colocation information (QCL-info).
  • Each QCL-info includes a reference signal resource, which is used to indicate that the downlink transmission of the TCI state should use the same downlink timing, frequency offset or receiving beam as the reference signal resource. It is specifically determined by the type of the QCL-info.
  • the QCL type can have four values ⁇ typeA, typeB, typeC, typeD ⁇ . When the QCL type is typeA, typeB and typeC, the downlink transmission should be carried out using the same downlink timing and frequency offset as the reference signal resource. When the QCL type is typeD, the downlink transmission should be carried out using the same receiving beam as the reference signal resource.
  • the terminal device can determine which receiving beam to use to receive the corresponding downlink transmission through the QCL-info of typeD.
  • the specific execution steps are as follows:
  • the network device indicates a downlink TCI state to the terminal device through DCI.
  • the terminal device determines the reference signal resource in the QCL information of type D in the downlink TCI state.
  • the terminal device uses the receiving beam of the reference signal resource as the receiving beam used for downlink transmission. It should be noted that the receiving beam of the reference signal resource is acquired by the terminal device in advance through the beam management process. Through the beam management process, the terminal device can determine which receiving beam is the best to receive the reference signal resource, and use the receiving beam as the receiving beam of the reference signal resource.
  • the uplink TCI state includes a reference signal resource, which is used to indicate that the uplink transmission using this TCI state should use the same uplink transmission beam as the reference signal resource.
  • the terminal device can determine which transmission beam to use for uplink transmission through the reference signal resource.
  • the reference signal resource is not included in the QCL-info, and the QCL type is not distinguished, because there is no need to refer to the uplink timing and frequency offset information, only the uplink transmission beam.
  • the structure of the uplink TCI state is shown below:
  • the network device indicates a certain uplink TCI state to the terminal device through DCI.
  • the terminal device determines the reference signal resource in the uplink TCI state.
  • the terminal device uses the transmit beam of the reference signal resource as the transmit beam used by the terminal device for uplink transmission. It should be noted that the transmit beam of the reference signal resource is obtained by the terminal device in advance through the beam management process.
  • TCI-state configuration The network device configures multiple TCI-states to the terminal device through RRC signaling. These TCI-states all include a QCL-Info of type D. The network device can also configure TCI-states that do not include QCL-info of type D, but these TCI-states are not used for data transmission beam indication, so they are not further explained here.
  • TCI-state activation After the network device configures multiple TCI-states, it is also necessary to activate 8 of them through the media access control element (MAC-CE). These 8 TCI-states correspond one-to-one to the 8 values of the TCI field in the DCI. That is, the 8 values of the TCI field of the DCI correspond to which 8 TCI-states are determined by MACCE.
  • MAC-CE media access control element
  • the network device indicates a specific TCI-state through the TCI field in the DCI.
  • the value of the TCI field in the DCI sent by the network device to the terminal device is 000, indicating that the data transmission beam adopts the TCI state corresponding to 000.
  • the reference signal contained in the QCL-Info of type D in the TCI state is the channel state information-reference signal (CSI-RS) with an index of #1, indicating that the beam used for data transmission is the same as the receiving beam corresponding to the CSI-RS with an index of #1.
  • the receiving beam corresponding to the CSI-RS with an index of #1 can be determined through the beam measurement process and is known to the terminal device. Therefore, through the specific value of the TCI field, the terminal device can determine the beam corresponding to the data transmission beam, and thus use the corresponding beam to send or receive data.
  • TCI state TCI-state and TCI state in this article can be used interchangeably.
  • beam indication is achieved by the base station indicating the QCL relationship between multiple reference signals to the terminal device.
  • the QCL types supported by the 5G communication standard are shown below. Multiple QCL types can be supported in the 5G communication protocol.
  • type D is a spatial reception parameter, which is used by the base station to indicate the receiving beam on the terminal device side. Based on the received beam indication, the terminal device should use the receiving beam of the receiving source reference signal or a close beam to receive the target reference signal.
  • the quasi co-location types corresponding to each DL RS are given by the higher layer parameter
  • qcl-Type in QCL-Info may take one of the following values:
  • the corresponding Chinese translation is:
  • the quasi-colocation type for each DL RS is given by a higher-layer parameter.
  • the QCL type in the QCL information can take one of the following values:
  • the QCL relationship for the physical downlink control channel is shown below.
  • the PDCCH and its DMRS can be indicated as QCL to CSI-RS, and the terminal device should use the beam that receives the CSI-RS to receive the PDCCH and its DMRS.
  • the UE For the DM-RS of PDCCH, if the UE is configured with dl-OrJointTCI-StateList, the UE shall expect that an indicated DLorJointTCIState indicates one of the following quasi co-location type(s):
  • the corresponding Chinese translation is:
  • the UE For DMRS carried by PDCCH, if the UE is configured with a downlink/common TCI state list, the UE shall expect the indicated downlink/common TCI state to indicate one of the following quasi-colocation types:
  • the 5G communication standard supports two receive beams. As shown below, two possible forms of two TCI status indications for single frequency network (SFN) transmission. For example, a possible configuration form of two TCI status indications for SFN transmission.
  • SFN single frequency network
  • the UE is indicated with one or two TCI state(s)in a codepoint of the DCI field'Transmission Configuration Indication'in DCI format 1_1/1_2,or
  • the UE is not expected to be indicated with one TCI state per any of TCI codepoint by MAC CE, and the UE is indicated with two TCI states in a codepoint of the DCI field ‘Transmission Configuration Indication’ in DCI format 1_1/1_2, and
  • the UE procedure for receiving the PDSCH upon detection of a PDCCH follows clause 5.1 and the QCL assumption for the PDSCH as defined in clause 5.1.5.
  • the corresponding Chinese translation is:
  • the higher layer parameter sfnSchemePdsch is set to 'sfnSchemeA' or 'sfnSchemeB', and,
  • one code point in the DCI field “Transmission Configuration Indication” corresponding to DCI 1_1 or DCI 1_2 respectively indicates one or two TCI states for the UE, or,
  • the UE procedure for receiving PDSCH when detecting PDCCH follows the QCL assumptions for PDSCH defined in clauses 5.1 and 5.1.5.
  • the UE When a UE is configured with sfnSchemePdsch set to ‘sfnSchemeA’, and the UE is indicated with two TCI states in a codepoint of the DCI field'Transmission Configu ration Indication'in a DCI scheduling a PDSCH, the UE shall assume that the DM-RS port(s) of the PDSCH is quasi co-located with the DL-RSs of the two TCI states.
  • the corresponding Chinese translation is:
  • the UE When the UE is configured with sfnSchemePdsch set to 'sfnSchemeA', and two TCI states are indicated for the UE in the code point of the DCI field "Transmission Configuration Indication" in the DCI scheduling PDSCH, the UE shall assume that the DMRS port of PDSCH is quasi-colocated with the DL RS of the two TCI states.
  • the base station can indicate to the terminal device that a physical downlink shared channel (PDSCH) is the source reference signal indicated by the QCL field in the QCL to two TCI states.
  • PDSCH physical downlink shared channel
  • the base station can activate up to eight candidate TCI state combinations for the terminal device through MAC CE, and then indicate one of the eight candidate TCI state combinations to the terminal device through DCI. It can be seen that the TCI field in the DCI is up to 3 bits. As shown in Figure 3, the scheme in which the base station indicates two TCI states to the terminal device is applicable to the scenario where the base station uses two transmit beams and the terminal device uses two receive beams for transmission, and is also applicable to the scenario where one beam corresponding to two TRPs is used and the terminal device uses two receive beams for transmission, that is, a multi-station scenario.
  • beam indication is achieved by the base station indicating the QCL relationship between multiple reference signals to the terminal device. This results in low efficiency and low accuracy of beam indication.
  • the present application provides a corresponding technical solution, and the terminal device receives first indication information from a network device.
  • the first indication information is used to indicate that the service beam of the terminal device is a spatial interpolation beam or a concurrent multi-beam.
  • the network device indicates a specific service beam to the terminal device. Improve the efficiency and accuracy of beam indication.
  • the embodiment shown in FIG4 introduces the technical solution of the present application in an implementation manner in which the first indication information is used to indicate that the service beam of the terminal device is a spatial interpolation beam.
  • the embodiment shown in FIG6 introduces the technical solution of the present application in an implementation manner in which the first indication information is used to indicate that the service beam of the terminal device is a concurrent multi-beam.
  • the embodiment shown in FIG8 introduces the technical solution of the present application in an implementation manner in which a network device performs beam prediction to determine the type of the service beam.
  • a serving beam may also be referred to as an activated TCI state, an activated beam, or an activated QCL relationship.
  • a spatial interpolation beam may also be referred to as an interpolation beam, a predicted beam, a new beam, or a serving beam.
  • a concurrent multi-beam may also be referred to as a multi-beam, a predicted beam, a new beam, or a serving beam.
  • a transmit beam may also be referred to as a transmit beam, a downlink transmit beam, or a transmitting end beam.
  • An activated transmit beam may also be referred to as an activated transmit beam, an activated downlink transmit beam, or an activated transmitting end beam.
  • a candidate transmit beam may also be referred to as a candidate transmit beam, a candidate transmitting end beam, or a candidate beam.
  • FIG4 is a schematic diagram of an embodiment of a beam indication method according to an embodiment of the present application. Referring to FIG4 , the method includes:
  • a network device sends first indication information to a terminal device.
  • the first indication information is used to indicate that a serving beam of the terminal device is a spatial interpolation beam.
  • the terminal device receives the first indication information from the network device.
  • the spatial interpolation beam is determined based on multiple activated transmit beams. That is, the terminal device can determine the service beam of the terminal device by interpolation based on the multiple activated transmit beams.
  • the following text mainly introduces the example of the terminal device determining the spatial interpolation beam based on two activated transmit beams. The following examples do not limit the present application. In fact, the terminal device can determine the spatial interpolation beam based on three activated transmit beams or more activated transmit beams.
  • the service beam of the terminal device is the receiving beam adopted by the terminal device.
  • the multiple activated transmission beams are transmission beams selected from multiple candidate transmission beams based on the beam qualities of the multiple candidate transmission beams.
  • the multiple candidate transmission beams belong to the multiple transmission beams that the network device configures the terminal device to measure, and each of the multiple transmission beams corresponds to a reference signal. That is, the network device respectively transmits the reference signals corresponding to the multiple transmission beams through the multiple transmission beams.
  • the terminal device measures the reference signals of the multiple transmission beams to obtain the beam qualities of the multiple transmission beams.
  • the multiple candidate transmission beams belong to the multiple transmission beams.
  • the first indication information is also used to indicate at least one of the following: a spatial interpolation coefficient corresponding to each activated transmission beam in a plurality of activated transmission beams, spatial interpolation indication information that can be used to determine the spatial interpolation coefficient corresponding to each activated transmission beam in a plurality of activated transmission beams, an HPBW difference of a service beam relative to one of the multiple activated transmission beams, or a first time offset.
  • the first time offset is used to indicate the effective time of the spatial interpolation beam. That is, the spatial interpolation beam takes effect at the first time offset after the moment when the network device sends the first indication information to the terminal device.
  • the HPBW difference can also be referred to as the HPBW difference of the transmission beam adopted by the network device relative to one of the multiple activated transmission beams.
  • the spatial interpolation coefficient corresponding to each of the multiple activated transmit beams, the HPBW difference of the service beam relative to one of the multiple activated transmit beams, and the first time offset can also be indicated by other indication information, which is not limited in this application.
  • the spatial interpolation coefficient corresponding to the activated transmit beam includes the spatial interpolation coefficient of the angle of departure (angle of departure, AOD) of the reference signal corresponding to the activated transmit beam. Since the reference signal corresponding to the activated transmit beam is a reference signal sent by the network device to the terminal device through the activated transmit beam, the angle of departure can also be called the downlink angle of departure.
  • the spatial interpolation coefficient of the angle of departure includes the spatial interpolation coefficient of the azimuth angle and/or the spatial interpolation coefficient of the zenith angle.
  • the first indication information includes a spatial interpolation coefficient corresponding to one of the multiple activated transmit beams, an HPBW difference of the service beam relative to one of the multiple activated transmit beams, or a first time offset.
  • the terminal device can determine the spatial interpolation coefficients corresponding to each of the multiple activated transmit beams through the spatial interpolation coefficients corresponding to one of the multiple activated transmit beams.
  • the multiple activated transmit beams include activated transmit beam 0 and activated transmit beam 1.
  • the first indication information includes the spatial interpolation coefficient a of the azimuth angle of the reference signal corresponding to activated transmit beam 0, the spatial interpolation coefficient b of the zenith angle of the reference signal corresponding to activated transmit beam 0, the HPBW difference d of the transmit beam used by the service beam or the network device relative to the activated transmit beam 0, and the time offset 1.
  • the terminal device determines that the spatial interpolation coefficient of the azimuth angle of the reference signal corresponding to activated transmit beam 0 is 1-a by using the spatial interpolation coefficient a of the azimuth angle of the reference signal corresponding to activated transmit beam 0.
  • the terminal device determines that the spatial interpolation coefficient of the zenith angle of the reference signal corresponding to activated transmit beam 1 is 1-b by using the spatial interpolation coefficient b of the zenith angle of the reference signal corresponding to activated transmit beam 0.
  • the activated transmit beam 0 can be represented by the index 0 of the reference signal 0 corresponding to activated transmit beam 0
  • the activated transmit beam 1 can be represented by the index 1 of the reference signal 1 corresponding to activated transmit beam 1. As shown in Table 2,
  • the first indication information includes a spatial interpolation coefficient corresponding to each of the multiple activated transmit beams, an HPBW difference of the service beam relative to one of the multiple activated transmit beams, or a first time offset.
  • the multiple activated transmit beams include activated transmit beam 0 and activated transmit beam 1.
  • the first indication information includes the spatial interpolation coefficient a of the azimuth angle of the reference signal corresponding to activated transmit beam 0, the spatial interpolation coefficient b of the zenith angle of the reference signal corresponding to activated transmit beam 0, the spatial interpolation coefficient 1-a of the azimuth angle of the reference signal corresponding to activated transmit beam 1, the spatial interpolation coefficient 1-b of the zenith angle of the reference signal corresponding to activated transmit beam 1, the HPBW difference d of the transmit beam adopted by the service beam or the network device relative to the activated transmit beam 0, and the time offset 1.
  • the first indication information is carried in DCI or MAC CE.
  • the value of the first indication information is the first value of the first code point in the DCI, and the first value of the first code point is used to indicate at least one of the following: the spatial interpolation coefficient corresponding to each of the multiple activated transmit beams, the HPBW difference of the service beam relative to one of the multiple activated transmit beams, or the first time offset.
  • the first indication information can be understood as a field in the DCI, and the value of the field can be a value of the first code point (codepoint). Different values of the first code point indicate different meanings.
  • the first code point includes one or more bits. That is, the first indication information includes one or more bits. For example, the first indication information includes 2 bits, 3 bits, or 4 bits, which is not limited in this application.
  • step 401a may be performed before step 401.
  • the network device sends a first mapping relationship to the terminal device.
  • the terminal device receives the first mapping relationship from the network device.
  • the first mapping relationship includes a mapping relationship between different values of the first code point and at least one of a spatial domain interpolation coefficient, a HPBW difference, and a time offset.
  • the first code point includes 3 bits, and there are eight different values of the first code point, each value corresponding to a spatial interpolation coefficient of an azimuth angle, a spatial interpolation coefficient of a zenith angle, and a HPBW difference.
  • the first mapping relationship can be expressed as shown in Table 3:
  • one value of the first code point corresponds to a spatial interpolation coefficient of an azimuth angle, a spatial interpolation coefficient of a zenith angle, and an HPBW difference.
  • the spatial interpolation coefficient of the azimuth angle is the spatial interpolation coefficient of the azimuth angle of the service beam relative to one of the multiple activated transmit beams.
  • the spatial interpolation coefficient of the zenith angle is the spatial interpolation coefficient of the zenith angle of the service beam relative to one of the multiple activated transmit beams.
  • the HPBW difference is the HPBW difference of the service beam relative to one of the multiple activated transmit beams.
  • step 400a the embodiment shown in FIG4 further includes step 400a.
  • Steps 400a to 400a may be performed before step 401.
  • the network device sends second indication information to the terminal device.
  • the second indication information is used to indicate reference signals corresponding to multiple activated transmit beams.
  • the terminal device receives the second indication information from the network device.
  • the second indication information is carried in DCI or MAC CE.
  • the network device indicates to the terminal device through the second indication information the reference signal corresponding to the activated transmit beam 0 (for example, the reference signal corresponding to the activated transmit beam 0 may be indicated through QCL#1) and the reference signal corresponding to the activated transmit beam 1 (for example, the reference signal corresponding to the activated transmit beam 1 may be indicated through QCL#2).
  • the reference signal corresponding to the activated transmit beam 0 may be indicated through QCL#1
  • the reference signal corresponding to the activated transmit beam 1 for example, the reference signal corresponding to the activated transmit beam 1 may be indicated through QCL#2
  • step 400a may be executed first, and then step 401a; or, step 401a may be executed first, and then step 400a; or, step 400a and step 401a may be executed simultaneously according to the circumstances, and this application does not make any specific limitation.
  • steps 400b to 400d further includes steps 400b to 400d.
  • steps 400b to 400d may be executed first, and then step 400a; or, First perform step 400a, then perform steps 400b to 400d; or, perform steps 400b to 400d and step 400a simultaneously according to the situation, which is not limited in this application.
  • steps 400b to 400d can be performed before step 400a.
  • the network device sends first configuration information to the terminal device.
  • the first configuration information includes AOD information corresponding to multiple reference signals and/or HPBW information corresponding to multiple reference signals.
  • the terminal device receives the first configuration information from the network device.
  • Each of the multiple reference signals corresponds to a transmit beam
  • the multiple reference signals correspond to the multiple transmit beams.
  • Multiple activated transmit beams belong to the multiple transmit beams. That is, the network device transmits the reference signal through the transmit beam corresponding to each reference signal, and each reference signal will have corresponding AOD information and/or HPBW information, thereby helping the terminal device to receive the multiple reference signals. This is conducive to improving the accuracy of the terminal device in measuring the multiple reference signals.
  • the first configuration information includes AOD information corresponding to each reference signal in the multiple reference signals, and/or HPBW information corresponding to each reference signal in the multiple reference signals.
  • the AOD information corresponding to each reference signal includes azimuth information corresponding to each reference signal, and/or zenith information corresponding to each reference signal.
  • the HPBW information corresponding to each reference signal includes azimuth width corresponding to each reference signal, and/or zenith width corresponding to each reference signal.
  • the first configuration information is carried in RRC signaling.
  • the terminal device measures multiple transmission beams according to the first configuration information to obtain beam qualities corresponding to the multiple transmission beams respectively.
  • the beam qualities corresponding to the multiple transmit beams respectively include at least one of the following: RSRP, reference signal receiving quality (RSRQ), and/or signal to interference plus noise ratio (SINR) corresponding to the multiple transmit beams respectively, which is not specifically limited in this application.
  • RSRP reference signal receiving quality
  • SINR signal to interference plus noise ratio
  • the terminal device sends candidate transmission beam information and/or candidate transmission beam quality information to the network device.
  • the candidate transmission beam information includes beam numbers corresponding to the multiple candidate transmission beams, and/or reference signal indexes or reference signal resource numbers corresponding to the multiple candidate transmission beams.
  • the candidate transmission beam quality includes beam qualities corresponding to the multiple candidate transmission beams, for example, RSRP, RSRQ, and/or SINR corresponding to the multiple candidate transmission beams.
  • the multiple candidate transmission beams may be multiple transmission beams with the best or better beam quality selected by the terminal device from multiple measured transmission beams.
  • the terminal device determines the angle of the service beam according to the spatial interpolation coefficients corresponding to each activated transmit beam, and/or determines the width of the service beam according to the HPBW difference.
  • the angle of the service beam is the peak or center angle direction of the service beam, such as azimuth, zenith angle, horizontal angle or vertical angle, etc.
  • the width of the service beam is the coverage of the service beam in azimuth, zenith angle, horizontal angle, or vertical angle, such as the half-power beam width at a certain angle, that is, the angle range where the beam gain drops to half of the peak gain.
  • the terminal device determines the angle of the transmission beam used by the network device according to the spatial interpolation coefficients corresponding to each activated transmission beam, and/or determines the width of the transmission beam used by the network device according to the HPBW difference; the terminal device determines the angle of the service beam according to the angle of the transmission beam used by the network device, and/or the terminal device determines the width of the service beam according to the width of the transmission beam used by the network device. That is, the terminal device can determine the angle of the service beam based on the beam pairing relationship and the angle of the transmission beam used by the network device. The terminal device can determine the width of the service beam based on the beam pairing relationship and the width of the transmission beam used by the network device.
  • the angle of the transmission beam used by the network device refers to the peak or center angle direction of the transmission beam, such as azimuth, zenith angle, horizontal angle or vertical angle, etc.
  • the width of the transmission beam used by the network device refers to the coverage of the transmission beam in azimuth, zenith angle, horizontal angle, or vertical angle, such as the half-power beam width at a certain angle, that is, the angle range where the beam gain drops to half of the peak gain.
  • the multiple activated transmit beams include activated transmit beam 0 and activated transmit beam 1.
  • the spatial interpolation coefficient of the azimuth angle of the reference signal corresponding to activated transmit beam 0 is a, and the spatial interpolation coefficient of the corresponding zenith angle is b.
  • the spatial interpolation coefficient of the azimuth angle of the reference signal corresponding to activated transmit beam 1 is 1-a, and the spatial interpolation coefficient of the corresponding zenith angle is 1-b.
  • the HPBW difference is the HPBW difference of the transmit beam adopted by the network device relative to the HPBW of activated transmit beam 0 is d.
  • the azimuth angle corresponding to the service beam is a*the azimuth angle of the reference signal corresponding to activated transmit beam 0+(1-a)*the azimuth angle of the reference signal corresponding to activated transmit beam 1.
  • the zenith angle of the service beam is b*the zenith angle of the reference signal corresponding to activated transmit beam 0+(1-b)*the zenith angle of the reference signal corresponding to activated transmit beam 1.
  • the HPBW of the service beam is the HPBW of activated transmit beam 0+d.
  • the service beam may be the spatial interpolation beam 1 or the spatial interpolation beam 2 as shown in FIG. 5C , and should be specifically determined in combination with the parameters indicated by the first indication information.
  • the terminal device determines the effective time of the service beam based on the first time offset.
  • the terminal device can determine the angle of the service beam and/or the width of the service beam through the parameters indicated by the first indication information, so that the network device can accurately indicate the service beam to the terminal device, thereby improving the indication efficiency and accuracy of the service beam.
  • step 402a may be performed before step 402.
  • the terminal device measures reference signals corresponding to multiple activated transmit beams to obtain multipath information corresponding to the multiple activated transmit beams.
  • the multipath information corresponding to multiple activated transmit beams includes at least one of the following: the number of at least one path within the range covered by the multiple activated transmit beams, the power of at least one path, the departure angle information of at least one path, the arrival angle information of at least one path, or the delay of at least one path.
  • the terminal device measures the reference signal corresponding to the activated transmit beam 0 and the reference signal corresponding to the activated transmit beam, and obtains the multipath information of the activated transmit beam 0 and the multipath information of the activated transmit beam 1.
  • the multipath information of the activated transmit beam 0 includes the path information corresponding to paths 1 to 3, respectively.
  • the multipath information of the activated transmit beam 1 includes the path information corresponding to paths 4 to 6, respectively.
  • step 401 may be executed first, and then step 402a; or, step 402a may be executed first, and then step 401; or, step 401 and step 402a may be executed simultaneously according to the circumstances, and this application does not limit this.
  • step 402a may be executed first, and then step 401a and steps 400a to 400d; or, step 401a and steps 400a to 400d may be executed first, and then step 402a; or, step 402a and steps 401a and steps 400a to 400d may be executed simultaneously according to the circumstances, and this application does not limit this.
  • the above step 402 specifically includes: the terminal device determines the angle of the service beam according to the spatial interpolation coefficient corresponding to each activated transmit beam and the multipath information corresponding to multiple activated transmit beams, and/or determines the width of the service beam according to the spatial interpolation coefficient corresponding to each activated transmit beam and the HPBW difference.
  • the terminal device determines the AOD coverage of the transmission beam used by the network device and the multiple paths covered by the transmission beam used by the network device based on the spatial interpolation coefficients corresponding to each activated transmission beam and the multipath information measured by the terminal device.
  • the terminal device can select the corresponding receiving beam as the service beam based on the coverage of the AOD and the multiple paths included in the transmission beam used by the network device. For example, the terminal device selects a receiving beam whose HPBW angle range includes the AOA angle of the multiple paths as the service beam.
  • a terminal device receives first indication information from a network device.
  • the first indication information is used to indicate that a service beam of the terminal device is a spatial interpolation beam.
  • the spatial interpolation beam is determined based on a plurality of activated transmission beams.
  • the network device indicates a specific service beam to the terminal device, and the service beam may be a spatial interpolation beam. The efficiency and accuracy of beam indication are improved.
  • FIG6 is a schematic diagram of another embodiment of the beam indication method of the present application. Referring to FIG6 , the method includes:
  • a network device sends first indication information to a terminal device.
  • the first indication information is used to indicate that a service beam of the terminal device is a concurrent multi-beam.
  • the terminal device receives the first indication information from the network device.
  • the concurrent multi-beam is determined based on multiple activated transmit beams. That is, the terminal device can determine the service beam of the terminal device in a concurrent manner based on the multiple activated transmit beams.
  • the following text mainly introduces the example of the terminal device determining the concurrent multi-beam based on two activated transmit beams. The following example does not limit the present application. In fact, the terminal device can determine the concurrent multi-beam based on three activated transmit beams or more activated transmit beams.
  • the service beam of the terminal device is the receiving beam used by the terminal device.
  • the multiple activated transmission beams are transmission beams selected from multiple candidate transmission beams based on the beam qualities of the multiple candidate transmission beams.
  • the multiple candidate transmission beams belong to the multiple transmission beams that the network device configures the terminal device to measure, and each of the multiple transmission beams corresponds to a reference signal. That is, the network device respectively transmits the reference signals corresponding to the multiple transmission beams through the multiple transmission beams.
  • the terminal device measures the reference signals of the multiple transmission beams to obtain the beam qualities of the multiple transmission beams.
  • the multiple candidate transmission beams belong to the multiple transmission beams.
  • the first indication information is also used to indicate at least one of the following: an AOD offset of a service beam relative to each of a plurality of activated transmission beams, indication information that can be used to determine an AOD offset of a service beam relative to each of a plurality of activated transmission beams, an HPBW offset corresponding to a service beam relative to each of the activated transmission beams, or a second time offset.
  • the second time offset is used to indicate or determine the effective time of the concurrent multi-beam. That is, the concurrent multi-beam takes effect at the second time offset after the network device sends the first indication information to the terminal device.
  • the AOD offset of the service beam relative to each of the multiple activated transmit beams can also be referred to as the AOD offset of the transmit beam adopted by the network device relative to each of the multiple activated transmit beams, or can also be referred to as the AOD offset of the service beam relative to a reference signal corresponding to each of the multiple activated transmit beams.
  • the HPBW offset corresponding to the service beam relative to each activated transmission beam may also be referred to as the HPBW offset corresponding to the transmission beam adopted by the network device relative to each activated transmission beam.
  • the AOD offset of the service beam relative to each of the multiple activated transmit beams, the HPBW offset of the service beam relative to each of the activated transmit beams, and the second time offset can also be indicated by other indication information, which is not limited in this application.
  • the AOD offset of the service beam relative to each of the multiple activated transmit beams includes: an offset of the azimuth angle of the service beam relative to a reference signal corresponding to each activated beam, and/or an offset of the zenith angle of the service beam relative to a reference signal corresponding to each activated transmit beam.
  • the first indication information is also used to indicate the power of concurrent multiple beams.
  • the first indication information includes a ratio between the transmit powers of multiple activated transmit beams.
  • the multiple activated transmit beams include activated transmit beam 0 and activated transmit beam 1.
  • the first indication information includes a power offset, which is equal to the transmit power of activated transmit beam 0/the transmit power of activated transmit beam 1.
  • activated transmit beam 0 covers the line of sight (LOS) path between the terminal device and the network device
  • activated transmit beam 1 covers the non-line of sight (NLOS) path between the terminal device and the network device. Therefore, the transmit power of activated transmit beam 1 can be higher than the transmit power of activated transmit beam 2.
  • the first indication information includes at least one of the following: an AOD offset of the service beam relative to each activated transmit beam, an HPBW offset corresponding to the service beam relative to each activated transmit beam, or a second time offset.
  • the multiple activated transmit beams include activated transmit beam 0 and activated transmit beam 1.
  • the first indication information includes that the offset of the service beam relative to the azimuth angle of activated transmit beam 0 is Azimuth_Diff 0 , the offset of the service beam relative to the zenith angle of activated transmit beam 0 is Zenith_Diff 0 , the HPBW offset of the service beam relative to activated transmit beam 0 is HPBW_Diff 0 , the offset of the service beam relative to the azimuth angle of activated transmit beam 1 is Azimuth_Diff 1 , the offset of the service beam relative to the zenith angle of activated transmit beam 1 is Zenith_Diff 1 , the HPBW offset of the service beam relative to activated transmit beam 1 is HPBW_Diff 1 , and a second time offset.
  • the activated transmit beam 0 can be represented by the index 0 of the reference signal 0 corresponding to the activated transmit beam 0, and the activated
  • the first indication information is carried in DCI or MAC CE.
  • the value of the first indication information is the first value of the second code point in the DCI, and the first value of the second code point is used to indicate at least one of the following: the AOD offset of the service beam relative to each activated transmit beam, the HPBW offset corresponding to the service beam relative to each activated transmit beam, or the second time offset.
  • the first indication information can be understood as a field in the DCI, and the value of the field can be the first value of the second code point.
  • Different values of the second code point indicate different meanings.
  • the second code point includes one or more bits. That is, the first indication information includes one or more bits.
  • the first indication information includes 2 bits, 3 bits, or 4 bits, which is not limited in this application.
  • step 601a may be performed before step 601.
  • the network device sends the second mapping relationship to the terminal device.
  • the terminal device receives the second mapping relationship from the network device.
  • the second mapping relationship includes the mapping relationship between different values of the second code point and at least one of the AOD offset of the service beam relative to each activated transmit beam, the HPBW offset corresponding to the service beam relative to each activated transmit beam, and the second time offset.
  • the second code point includes 3 bits, and there are eight different values of the second code point. Each value corresponds to a set of azimuth offsets. A set of zenith angle offsets, and a set of HPBW offsets.
  • the multiple activated transmit beams include activated transmit beam 0 and activated transmit beam 1.
  • Table 5 The second mapping relationship can be expressed as shown in Table 5:
  • one value of the second code point corresponds to the following: the azimuth angle offset of the reference signal corresponding to each activated transmit beam, the zenith angle offset of the reference signal corresponding to each activated transmit beam, and the HPBW offset of each activated transmit beam.
  • step 600a may be performed before step 601.
  • the network device sends second indication information to the terminal device.
  • the second indication information is used to indicate reference signals corresponding to multiple activated transmit beams.
  • the terminal device receives the second indication information from the network device.
  • Step 600a is similar to step 400a in the embodiment shown in FIG. 4 .
  • Step 600a please refer to the relevant introduction of step 400a in the embodiment shown in FIG. 4 , which will not be repeated here.
  • Step 600a may be executed first, and then step 601a; or, step 601a may be executed first, and then step 600a; or, step 600a and step 601a may be executed simultaneously according to the circumstances, and this application does not limit this.
  • the embodiment shown in Fig. 6 further includes steps 600b to 600d. Steps 600b to 600d may be performed before step 600a.
  • the network device sends first configuration information to the terminal device.
  • the first configuration information includes AOD information corresponding to multiple reference signals and/or HPBW information corresponding to multiple reference signals.
  • the terminal device receives the first configuration information from the network device.
  • the terminal device measures multiple transmission beams according to the first configuration information to obtain beam qualities corresponding to the multiple transmission beams respectively.
  • the terminal device sends candidate transmission beam information and/or candidate transmission beam quality information to the network device.
  • the network device receives the candidate transmission beam information and/or candidate transmission beam quality information from the terminal device.
  • Steps 600b to 600d are similar to steps 400b to 400d in the embodiment shown in FIG. 4 .
  • steps 400b to 400d are similar to steps 400b to 400d in the embodiment shown in FIG. 4 .
  • the terminal device determines the angle of the service beam according to the AOD offset of the service beam relative to each activated transmit beam, and/or determines the width of the service beam according to the HPBW offset corresponding to the service beam relative to each activated transmit beam.
  • the angle of the service beam is the peak or center angle direction of the service beam, such as azimuth, zenith angle, horizontal angle or vertical angle, etc.
  • the width of the service beam is the coverage of the service beam in azimuth, zenith angle, horizontal angle, or vertical angle, such as the half-power beam width at a certain angle, that is, the angle range where the beam gain drops to half of the peak gain.
  • the terminal device determines the angle of the transmission beam used by the network device according to the AOD offset of the service beam relative to each activated transmission beam, and/or determines the width of the transmission beam used by the network device according to the HPBW offset corresponding to the service beam relative to each activated transmission beam; the terminal device determines the angle of the service beam according to the angle of the transmission beam used by the network device, and/or the terminal device determines the width of the service beam according to the width of the transmission beam used by the network device. That is, the terminal device can determine the angle of the service beam based on the beam pairing relationship and the angle of the transmission beam used by the network device. The terminal device can determine the angle of the service beam based on the beam pairing relationship and the angle of the transmission beam used by the network device.
  • the width of the transmission beam determines the width of the service beam.
  • the angle of the transmission beam used by the network device refers to the peak or center angle direction of the transmission beam, such as azimuth, zenith angle, horizontal angle or vertical angle.
  • the width of the transmission beam used by the network device refers to the coverage of the transmission beam in azimuth, zenith angle, horizontal angle, or vertical angle, such as the half-power beam width at a certain angle, that is, the angle range where the beam gain drops to half of the peak gain.
  • the multiple activated transmit beams include activated transmit beam 0 and activated transmit beam 1.
  • the offset of the azimuth angle of the service beam relative to the activated transmit beam 0 is Azimuth_Diff 0
  • the offset of the service beam relative to the zenith angle of the activated transmit beam 0 is Zenith_Diff 0
  • the HPBW offset of the service beam relative to the activated transmit beam 0 is HPBW_Diff 0
  • the offset of the azimuth angle of the service beam relative to the activated transmit beam 1 is Azimuth_Diff 1
  • the offset of the service beam relative to the zenith angle of the activated transmit beam 1 is Zenith_Diff 1
  • the HPBW offset of the service beam relative to the activated transmit beam 1 is HPBW_Diff 1 .
  • the azimuth angle of one of the transmission beams in the concurrent multi-beams is Azimuth 0 +Azimuth_Diff 0 , where Azimuth 0 is the azimuth angle of activated transmission beam 1, and the zenith angle of the transmission beam is Zenith 0 +Zenith_Diff 0 , where Zenith 0 is the zenith angle of activated transmission beam 1.
  • the azimuth angle of another transmission beam in the concurrent multi-beams is Azimuth 1 +Azimuth_Diff 1 , where Azimuth 1 is the azimuth angle of activated transmission beam 1.
  • the zenith angle of the transmission beam is Zenith 1 +Zenith_Diff 1 , where Zenith 1 is the zenith angle of activated transmission beam 1.
  • the parameters indicated by the first indication information of the terminal device can determine the angle, width, and/or transmission power of each transmission beam in the concurrent multi-beam. This enables the network device to accurately indicate the concurrent multi-beam to the terminal device, thereby improving the indication efficiency and accuracy of the service beam.
  • the network device and the terminal device can realize multi-beam transmission through the concurrent multi-beam.
  • the terminal device determines the effective time of the service beam based on the second time offset.
  • step 602a may be performed before step 602.
  • the terminal device measures reference signals corresponding to multiple activated transmit beams to obtain multipath information corresponding to the multiple activated transmit beams.
  • Step 602a is similar to step 402a in the embodiment shown in FIG. 4 .
  • Step 602a please refer to the relevant introduction of step 402a in the embodiment shown in FIG. 4 , which will not be repeated here.
  • step 601 may be executed first, and then step 602a; or, step 602a may be executed first, and then step 601; or, step 601 and step 602a may be executed simultaneously according to the circumstances, and this application does not limit this.
  • step 602a may be executed first, and then step 601a and steps 600a to 600d; or, step 601a and steps 600a to 600d may be executed first, and then step 602a; or, step 602a and steps 601a and steps 600a to 600d may be executed simultaneously according to the circumstances, and this application does not limit this.
  • the above step 602 specifically includes: the terminal device determines the angle of the service beam according to the multipath information corresponding to the multiple activated transmit beams and the AOD offset of the service beam relative to each activated transmit beam, and/or determines the width of the service beam according to the multipath information corresponding to the multiple activated transmit beams and the HPBW offset of the service beam relative to each activated transmit beam.
  • the terminal device determines the angular coverage of the AOD of multiple concurrent beams used by the network device and the multiple paths covered by the multiple concurrent beams based on the AOD offset of each activated transmit beam and the multipath information measured by the terminal device.
  • the terminal device can select the corresponding receiving beam as the service beam based on the angular coverage of the AOD of multiple concurrent beams used by the network device and the multiple paths covered by the multiple concurrent beams.
  • the terminal device selects one or more receiving beams whose HPBW angle range includes the AOA angle of the multiple paths as the service beam.
  • a terminal device receives first indication information from a network device.
  • the first indication information is used to indicate that the service beam of the terminal device is a concurrent multi-beam.
  • the concurrent multi-beam is determined based on multiple activated transmission beams.
  • the network device indicates a specific service beam to the terminal device, and the service beam can be a concurrent multi-beam. The efficiency and accuracy of beam indication are improved.
  • FIG8 is a schematic diagram of another embodiment of the beam indication method of the present application. Referring to FIG8 , the method includes:
  • the network device performs beam prediction to determine the type of service beam of the terminal device.
  • the types of service beams include spatial interpolation beams or concurrent multi-beams.
  • the network device performs beam prediction based on historical information, environmental perception, machine learning, and/or artificial intelligence to determine the type of the service beam. It can be seen that the network device performs beam prediction to determine the type of the service beam, thereby enabling the network device to indicate the service beam and reduce the beam mismatch time between the terminal device and the network device.
  • the network device sends first indication information to the terminal device.
  • the first indication information is used to indicate that the service beam of the terminal device is a spatial interpolation beam or a concurrent multi-beam.
  • the terminal device receives the first indication information from the network device.
  • Step 802 is similar to step 401 in the embodiment shown in FIG. 4 or step 601 in the embodiment shown in FIG. 6 .
  • Step 802 please refer to the relevant introduction of step 401 in the embodiment shown in FIG. 4 or step 601 in the embodiment shown in FIG. 6 .
  • the first indication information is used to indicate that the service beam of the terminal device is a spatial interpolation beam.
  • the embodiment shown in FIG8 further includes step 801a. Step 801a may be performed after step 801.
  • the network device sends a first mapping relationship to the terminal device.
  • the terminal device receives the first mapping relationship from the network device.
  • Step 801a is similar to step 401a in the embodiment shown in FIG. 4 .
  • Step 801a is similar to step 401a in the embodiment shown in FIG. 4 .
  • step 801a may be performed first, and then step 802; or step 802 may be performed first, and then step 801a; or, step 801a and step 802 may be performed simultaneously depending on the situation, which is not limited in this application.
  • the first indication information is used to indicate that the service beam of the terminal device is a concurrent multi-beam.
  • the embodiment shown in FIG8 further includes step 801b. Step 801b may be performed before step 801.
  • the network device sends the second mapping relationship to the terminal device.
  • the terminal device receives the second mapping relationship from the network device.
  • Step 801b is similar to step 601a in the embodiment shown in FIG. 6 .
  • Step 801b please refer to the relevant introduction of step 601a in the embodiment shown in FIG. 6 , which will not be repeated here.
  • step 801b may be performed first, and then step 802; or step 802 may be performed first, and then step 801b; or step 801b and step 802 may be performed simultaneously depending on the situation, and this application does not limit this.
  • step 800a may be performed before step 803 or step 804.
  • the network device sends second indication information to the terminal device.
  • the second indication information is used to indicate reference signals corresponding to multiple activated transmit beams.
  • the terminal device receives the second indication information from the network device.
  • step 800a is similar to step 400a in the embodiment shown in FIG. 4 .
  • step 800a please refer to the relevant introduction of step 400a in the embodiment shown in FIG. 4 .
  • Step 800a may be executed first, and then step 801a; or, step 801a may be executed first, and then step 800a; or, step 800a and step 801a may be executed simultaneously according to the circumstances, and this application does not make any specific limitation.
  • the embodiment shown in Fig. 8 further includes steps 800b to 800d. Steps 800b to 800d may be performed before step 800a.
  • the network device sends first configuration information to the terminal device.
  • the first configuration information includes AOD information corresponding to multiple reference signals and/or HPBW information corresponding to multiple reference signals.
  • the terminal device receives the first configuration information from the network device.
  • the terminal device measures multiple transmission beams according to the first configuration information to obtain beam qualities corresponding to the multiple transmission beams respectively.
  • the terminal device sends candidate transmission beam information and/or candidate transmission beam quality information to the network device.
  • Steps 800b to 800d are similar to steps 400b to 400d in the embodiment shown in FIG. 4 .
  • steps 400b to 400d are similar to steps 400b to 400d in the embodiment shown in FIG. 4 .
  • the terminal device determines the angle of the service beam based on the spatial interpolation coefficients corresponding to each activated transmit beam, and/or the terminal device determines the width of the service beam based on the HPBW difference of the service beam relative to one of the multiple activated transmit beams.
  • Step 803 is similar to step 402 in the embodiment shown in FIG. 4 .
  • Step 803 please refer to the relevant introduction of step 402 in the embodiment shown in FIG. 4 , which will not be repeated here.
  • the terminal device determines the angle of the service beam based on the AOD offset of the service beam relative to each activated transmit beam, and/or the terminal device determines the width of the service beam based on the HPBW offset corresponding to the service beam relative to each activated transmit beam.
  • Step 803 is similar to step 602 in the embodiment shown in FIG. 6 .
  • Step 803 please refer to the relevant introduction of step 602 in the embodiment shown in FIG. 6 , which will not be repeated here.
  • step 803a may be performed before step 803 or step 804.
  • the terminal device measures reference signals corresponding to multiple activated transmit beams to obtain multipath information corresponding to the multiple activated transmit beams.
  • the above-mentioned step 803 specifically includes: the terminal device determines the angle of the service beam based on the multipath information corresponding to the multiple activated transmit beams and the spatial interpolation coefficients corresponding to each activated transmit beam, and/or the terminal device determines the width of the service beam based on the multipath information corresponding to the multiple activated transmit beams and the HPBW difference of the service beam relative to one of the multiple activated transmit beams.
  • the above step 804 specifically includes: the terminal device determines the angle of the service beam based on the multipath information corresponding to the multiple activated transmit beams and the AOD offset of the service beam relative to each activated transmit beam, and/or the terminal device determines the width of the service beam based on the multipath information corresponding to the multiple activated transmit beams and the HPBW offset of the service beam relative to each activated transmit beam.
  • Step 803a is similar to step 402a in the embodiment shown in FIG. 4 or step 602a in the embodiment shown in FIG. 6 .
  • Step 803a please refer to the relevant introduction of step 402a in the embodiment shown in FIG. 4 or step 602a in the embodiment shown in FIG. 6 .
  • a network device performs beam prediction to determine the type of service beam of a terminal device, and the type of service beam is a spatial interpolation beam or a concurrent multi-beam.
  • the network device sends a first indication message to the terminal device.
  • the first indication message is used to indicate that the service beam of the terminal device is a spatial interpolation beam or a concurrent multi-beam.
  • the spatial interpolation beam or the concurrent multi-beam is determined based on multiple activated transmission beams.
  • the network device indicates a specific service beam to the terminal device, and the service beam can be a spatial interpolation beam or a concurrent multi-beam. The efficiency and accuracy of beam indication are improved.
  • the communication device provided in the embodiment of the present application is described below.
  • Fig. 9 is a schematic diagram of a structure of a communication device according to an embodiment of the present application.
  • a communication device 900 can be used to execute the process executed by the terminal device in the embodiments shown in Fig. 4, Fig. 6 and Fig. 8.
  • Fig. 9 please refer to the relevant introduction in the above method embodiments.
  • the communication device 900 includes a transceiver module 901. Optionally, the communication device 900 also includes a processing module 902.
  • the processing module 902 is used for data processing.
  • the transceiver module 901 can realize the corresponding communication function.
  • the transceiver module 901 can also be called a communication interface or a communication module.
  • the communication device 900 may further include a storage module, which may be used to store instructions and/or data.
  • the processing module 902 may read the instructions and/or data in the storage module so that the communication device implements the aforementioned method embodiment.
  • the communication device 900 can be used to perform the actions performed by the terminal device in the above method embodiment.
  • the communication device 900 can be a terminal device or a component that can be configured in a terminal device.
  • the processing module 902 is used to perform the processing-related operations on the terminal device side in the above method embodiment.
  • the transceiver module 901 is used to perform the reception-related operations on the terminal device side in the above method embodiment.
  • the communication device 900 is used to perform the following scheme:
  • the transceiver module 901 is used to receive first indication information from a network device, where the first indication information is used to indicate that the service beam of the communication device 900 is a spatial interpolation beam or a concurrent multi-beam, where the spatial interpolation beam or the concurrent multi-beam is determined based on multiple activated transmission beams.
  • the first indication information indicates that the service beam of the communication device 900 is a spatial interpolation beam
  • the first indication information is also used to indicate at least one of the following: a spatial interpolation coefficient corresponding to each of a plurality of activated transmit beams, an HPBW difference of the service beam relative to one of the plurality of activated transmit beams, or a first time offset, and the first time offset is used to indicate or determine the effective time of the spatial interpolation beam.
  • the first indication information includes at least one of the following: a spatial interpolation coefficient corresponding to each of a plurality of activated transmit beams, an HPBW difference of a service beam relative to one of the plurality of activated transmit beams, or a first time offset.
  • the first indication information includes at least one of the following: a spatial interpolation coefficient corresponding to one of the multiple activated transmit beams, an HPBW difference of the service beam relative to one of the multiple activated transmit beams, or a first time offset; a processing module 902 is used to determine the spatial interpolation coefficients corresponding to each of the multiple activated transmit beams based on the spatial interpolation coefficients corresponding to one of the multiple activated transmit beams.
  • activating the spatial interpolation coefficient corresponding to the transmit beam includes: activating the spatial interpolation coefficient of the AOD of the reference signal corresponding to the transmit beam.
  • the spatial interpolation coefficient of the departure angle includes the spatial interpolation coefficient of the azimuth angle and/or the spatial interpolation coefficient of the zenith angle.
  • the processing module 902 is used to determine the angle of the service beam according to the spatial interpolation coefficients corresponding to each activated transmit beam, and/or determine the width of the service beam according to the HPBW difference, and/or determine the service beam according to the first time offset. The effective time of the bundle.
  • the processing module 902 is also used to: measure the reference signals corresponding to multiple activated transmit beams to obtain multipath information corresponding to the multiple activated transmit beams; the processing module 902 is specifically used to: determine the angle of the service beam according to the spatial interpolation coefficients and multipath information corresponding to each activated transmit beam, and/or determine the width of the service beam according to the HPBW difference and the multipath information.
  • the value of the first indication information is the first value of the first code point, and the first value of the first code point is used to indicate at least one of the following: the spatial interpolation coefficient corresponding to each activated transmit beam, the HPBW difference, or the first time offset.
  • the transceiver module 901 is further used to: receive a first mapping relationship from a network device, the first mapping relationship including a mapping relationship between different values of the first code point and at least one of a spatial interpolation coefficient, an HPBW difference, and a time offset.
  • the first indication information indicates that the service beam of the communication device 900 is a concurrent multi-beam, and the first indication information is also used to indicate at least one of the following: an AOD offset of the service beam relative to each activated transmit beam in a plurality of activated transmit beams, an HPBW offset corresponding to the service beam relative to each activated transmit beam, or a second time offset, and the second time offset is used to indicate the effective time of the concurrent multi-beam.
  • the AOD offset of the service beam relative to each of the multiple activated transmit beams includes: the azimuth offset of the service beam relative to the reference signal corresponding to each activated transmit beam, and/or the zenith angle offset of the service beam relative to the reference signal corresponding to each activated transmit beam.
  • the first indication information is also used to indicate the power of the concurrent multi-beams.
  • the processing module 902 is used to determine the angle of the service beam according to the AOD offset, and/or determine the width of the service beam according to the HPBW offset, and/or determine the effective time of the service beam according to the second time offset.
  • the processing module 902 is used to measure multiple activated transmit beams to obtain multipath information corresponding to the multiple activated transmit beams; the processing module 902 is specifically used to: determine the angle of the service beam according to the AOD offset multipath information, and/or determine the width of the service beam according to the HPBW offset and multipath information.
  • the value of the first indication information is the first value of the second code point
  • the first value of the second code point is used to indicate at least one of the following: an AOD offset of the service beam relative to each of the multiple activated transmit beams, an HPBW offset corresponding to the service beam relative to each activated transmit beam, or a second time offset.
  • the transceiver module 901 is further used to: receive a second mapping relationship from a network device, the second mapping relationship including a mapping relationship between different values of the second code point and at least one of the AOD offset, HPBW offset, and time offset.
  • the first indication information is carried in the DCI.
  • the multiple activated transmit beams are transmit beams selected from multiple candidate transmit beams based on the beam qualities of the multiple candidate transmit beams, the multiple candidate transmit beams belong to the multiple transmit beams measured by the network device configuration communication device 900, and the beam qualities of the multiple candidate transmit beams are obtained by measuring the multiple candidate transmit beams.
  • the transceiver module 901 is also used to: receive first configuration information from the network device, the first configuration information includes AOD information corresponding to multiple reference signals, and/or HPBW information corresponding to multiple reference signals, each of the multiple reference signals corresponds to a transmission beam, multiple reference signals correspond to multiple transmission beams, and multiple activated transmission beams belong to multiple transmission beams; the processing module 902 is used to measure multiple transmission beams according to the first configuration information to obtain beam qualities corresponding to the multiple transmission beams; the transceiver module 901 is also used to: send candidate transmission beam information and/or candidate transmission beam quality information to the network device, the candidate beam information is used to indicate multiple candidate transmission beams, multiple candidate transmission beams belong to multiple transmission beams, and the candidate beam quality information is used to indicate the beam qualities corresponding to the multiple candidate transmission beams.
  • the AOD angle information corresponding to the multiple reference signals respectively includes: an azimuth angle corresponding to each reference signal in the multiple reference signals, and/or a zenith angle corresponding to each reference signal in the multiple reference signals.
  • the HPBW information corresponding to the multiple reference signals respectively includes: an azimuth angle width corresponding to each reference signal in the multiple reference signals, and/or a zenith angle width corresponding to each reference signal in the multiple reference signals.
  • the transceiver module 901 is further used to: receive second indication information from the network device, the second indication information is used to indicate reference signals corresponding to multiple activated transmit beams, and the multiple activated transmit beams belong to multiple candidate transmit beams.
  • the transceiver module 901 may include a sending module and a receiving module.
  • the sending module is used to perform the sending operation in the above method embodiment.
  • the receiving module is used to perform the receiving operation in the above method embodiment.
  • the communication device 900 may include a sending module but not a receiving module. Specifically, it can be determined whether the above solution executed by the communication device 900 includes a sending action and a receiving action.
  • the communication device 900 is used to perform the actions performed by the terminal device in the embodiments shown in Figures 4, 6 and 8.
  • the processing module 902 in the above embodiment can be implemented by at least one processor or processor-related circuit.
  • the transceiver module 901 can be implemented by a transceiver or a transceiver-related circuit.
  • the transceiver module 901 can also be called a communication module or a communication interface.
  • the storage module can be implemented by at least one memory.
  • Fig. 10 is a schematic diagram of a structure of a communication device according to an embodiment of the present application.
  • a communication device 1000 can be used to execute the process executed by the network device in the embodiments shown in Fig. 4, Fig. 6 and Fig. 8.
  • the relevant introduction in the above method embodiments please refer to the relevant introduction in the above method embodiments.
  • the communication device 1000 includes a transceiver module 1001. Optionally, the communication device 1000 also includes a processing module 1002.
  • the processing module 1002 is used for data processing.
  • the transceiver module 1001 can realize the corresponding communication function.
  • the transceiver module 1001 can also be called a communication interface or a communication module.
  • the communication device 1000 may further include a storage module, which may be used to store instructions and/or data.
  • the processing module 1002 may read the instructions and/or data in the storage module so that the communication device implements the aforementioned method embodiment.
  • the communication device 1000 can be used to perform the actions performed by the network device in the above method embodiment.
  • the communication device 1000 can be a network device or a component that can be configured in a network device.
  • the processing module 1002 is used to perform the processing-related operations on the network device side in the above method embodiment.
  • the transceiver module 1001 is used to perform the reception-related operations on the network device side in the above method embodiment.
  • the communication device 1000 is used to perform the following scheme:
  • the transceiver module 1001 is used to send first indication information to the terminal device, where the first indication information is used to indicate that the service beam of the terminal device is a spatial interpolation beam or a concurrent multi-beam, where the spatial interpolation beam or the concurrent multi-beam is determined based on multiple activated transmission beams.
  • the first indication information indicates that the service beam of the terminal device is a spatial interpolation beam
  • the first indication information is also used to indicate at least one of the following: a spatial interpolation coefficient corresponding to each of a plurality of activated transmit beams, an HPBW difference of the service beam relative to one of the plurality of activated transmit beams, or a first time offset, and the first time offset is used to indicate or determine the effective time of the spatial interpolation beam.
  • activating the spatial interpolation coefficient corresponding to the transmit beam includes: activating the spatial interpolation coefficient of the departure angle of the reference signal corresponding to the transmit beam.
  • the spatial interpolation coefficient of the departure angle includes the spatial interpolation coefficient of the azimuth angle and/or the spatial interpolation coefficient of the zenith angle.
  • the value of the first indication information is the first value of the first code point, and the first value of the first code point is used to indicate at least one of the following: the spatial interpolation coefficient corresponding to each activated transmit beam, the HPBW difference, or the first time offset.
  • the transceiver module 1001 is also used to: send a first mapping relationship to the terminal device, the first mapping relationship including a mapping relationship between different values of the first code point and at least one of a spatial interpolation coefficient, an HPBW difference, and a time offset.
  • the first indication information indicates that the service beam of the terminal device is a concurrent multi-beam
  • the first indication information is also used to indicate at least one of the following: an AOD offset of the service beam relative to each activated transmit beam in a plurality of activated transmit beams, an HPBW offset corresponding to the service beam relative to each activated transmit beam, or a second time offset, and the second time offset is used to indicate or determine the effective time of the concurrent multi-beam.
  • the AOD offset of the service beam relative to each of the multiple activated transmit beams includes: the offset of the departure angle of the service beam relative to the reference signal corresponding to each activated transmit beam, and/or the offset of the zenith angle of the service beam relative to the reference signal corresponding to each activated transmit beam.
  • the first indication information is also used to indicate the power of the concurrent multi-beams.
  • the value of the first indication information is the first value of the second code point
  • the first value of the second code point is used to indicate at least one of the following: an AOD offset of the service beam relative to each of the multiple activated transmit beams, an HPBW offset corresponding to the service beam relative to each activated transmit beam, or a second time offset.
  • the transceiver module 1001 is further used to: send a second mapping relationship to the terminal device, the second mapping relationship It includes a mapping relationship between different values of the second code point and at least one of an AOD offset, an HPBW offset, and a time offset.
  • the first indication information is carried in the DCI.
  • the multiple activated transmit beams are transmit beams selected from multiple candidate transmit beams based on the beam qualities of the multiple candidate transmit beams, the multiple candidate transmit beams belong to the multiple transmit beams measured by the terminal device configured by the communication device 1000, and the beam qualities of the multiple candidate transmit beams are obtained by measuring the multiple candidate transmit beams.
  • the transceiver module 1001 is also used to: send first configuration information to the terminal device, the first configuration information including AOD information corresponding to multiple reference signals respectively, and/or HPBW information corresponding to multiple reference signals respectively, each of the multiple reference signals corresponds to a transmission beam, multiple reference signals correspond to multiple transmission beams, and multiple activated transmission beams belong to multiple transmission beams; receive candidate transmission beam information and/or candidate transmission beam quality information from the terminal device, the candidate transmission beam information is used to indicate multiple candidate transmission beams, multiple candidate transmission beams belong to multiple transmission beams, and the candidate transmission beam quality information is used to indicate the beam qualities corresponding to the multiple candidate transmission beams respectively.
  • the AOD angle information corresponding to the multiple reference signals respectively includes: an azimuth angle corresponding to each reference signal in the multiple reference signals, and/or a zenith angle corresponding to each reference signal in the multiple reference signals.
  • the HPBW information corresponding to the multiple reference signals respectively includes: an azimuth angle width corresponding to each reference signal in the multiple reference signals, and/or a zenith angle width corresponding to each reference signal in the multiple reference signals.
  • the transceiver module 1001 is further used to: send second indication information to the terminal device, where the second indication information is used to indicate reference signals corresponding to multiple activated transmit beams, and the multiple activated transmit beams belong to multiple candidate transmit beams.
  • the processing module 1002 is used to perform beam prediction to determine the type of the service beam, and the type of the service beam is a spatial interpolation beam or a concurrent multi-beam.
  • the transceiver module 1001 may include a sending module and a receiving module.
  • the sending module is used to perform the sending operation in the above method embodiment.
  • the receiving module is used to perform the receiving operation in the above method embodiment.
  • the communication device 1000 may include a sending module but not a receiving module.
  • the communication device 1000 may include a receiving module but not a sending module. Specifically, it may depend on whether the above solution executed by the communication device 1000 includes a sending action and a receiving action.
  • the communication device 1000 is used to execute the actions executed by the network device in the embodiments shown in Figures 4, 6 and 8.
  • the processing module 1002 in the above embodiment can be implemented by at least one processor or processor-related circuit.
  • the transceiver module 1001 can be implemented by a transceiver or a transceiver-related circuit.
  • the transceiver module 1001 can also be called a communication module or a communication interface.
  • the storage module can be implemented by at least one memory.
  • the present application also provides a communication device 1100, which may be a terminal device, a processor in a terminal device, or a chip.
  • the communication device 1100 may be used to execute the operations executed by the terminal device in the above method embodiment.
  • FIG11 shows a simplified schematic diagram of the structure of the terminal device.
  • the terminal device includes a processor, a memory, and a transceiver.
  • the memory can store computer program codes
  • the transceiver includes a transmitter 1131, a receiver 1132, a radio frequency circuit (not shown in the figure), an antenna 1133, and an input and output device (not shown in the figure).
  • the processor is mainly used to process communication protocols and communication data; control terminal devices, execute software programs and process data of software programs, etc.
  • Memory is mainly used to store software programs and data.
  • Radio frequency circuits are mainly used for conversion between baseband signals and radio frequency signals and for processing radio frequency signals.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • the input-output device may include a touch screen, a display screen, or a keyboard, etc.
  • the input-output device is mainly used to receive data input by a user and output data to the user. It should be noted that some types of terminal devices may not have an input-output device.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit. Then, the RF circuit performs RF processing on the baseband signal and sends the RF signal outward in the form of electromagnetic waves through the antenna.
  • the RF circuit receives the RF signal through the antenna.
  • the RF circuit converts the RF signal into a baseband signal and outputs the baseband signal To the processor.
  • the processor converts the baseband signal into data and processes the data.
  • the memory may also be referred to as a storage medium or a storage device, etc.
  • the memory may be set independently of the processor or integrated with the processor, and the embodiments of the present application do not limit this.
  • the antenna and the radio frequency circuit with transceiver functions can be regarded as the transceiver module of the terminal device, and the processor with processing function can be regarded as the processing module of the terminal device.
  • the terminal device includes a processor 1110, a memory 1120, and a transceiver 1130.
  • the processor 1110 may also be referred to as a processing unit, a processing board, a processing module, or a processing device, etc.
  • the transceiver 1130 may also be referred to as a transceiver unit, a transceiver, or a transceiver device, etc.
  • the device for implementing the receiving function in the transceiver 1130 is regarded as a receiving module
  • the device for implementing the sending function in the transceiver 1130 is regarded as a sending module
  • the transceiver 1130 includes a receiver and a transmitter.
  • the transceiver may sometimes be referred to as a transceiver, a transceiver module, or a transceiver circuit.
  • the receiver may sometimes be referred to as a receiver, a receiving module, or a receiving circuit.
  • the transmitter may sometimes be referred to as a transmitter, a transmitting module, or a transmitting circuit.
  • the processor 1110 is used to execute the processing actions on the terminal device side in the embodiments shown in Figures 4, 6 and 8.
  • the transceiver 1130 is used to execute the transceiver actions on the terminal device side in the embodiments shown in Figures 4, 6 and 8.
  • FIG11 is merely an example and not a limitation, and the terminal device including the transceiver module and the processing module may not rely on the structure shown in FIG9 or FIG11.
  • the chip When the communication device 1100 is a chip, the chip includes a processor, a memory and a transceiver. Among them, the transceiver can be an input-output circuit or a communication interface.
  • the processor can be a processing module or a microprocessor or an integrated circuit integrated on the chip.
  • the sending operation of the terminal device in the above method embodiment can be understood as the output of the chip, and the receiving operation of the terminal device in the above method embodiment can be understood as the input of the chip.
  • the present application also provides a communication device 1200, which can be a network device or a chip.
  • the communication device 1200 can be used to perform the operations performed by the network device in the embodiments shown in FIG. 4, FIG. 6 and FIG. 8.
  • Fig. 12 shows a simplified schematic diagram of a base station structure.
  • the base station includes a part 1210, a part 1220, and a part 1230.
  • Part 1210 is mainly used for baseband processing, base station control, etc.; Part 1210 is usually the control center of the base station, which can usually be called a processor, and is used to control the base station to perform the processing operations on the network device side in the above method embodiment.
  • Part 1220 is mainly used to store computer program code and data.
  • Part 1230 is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals into baseband signals; Part 1230 can generally be referred to as a transceiver module, a transceiver, a transceiver circuit, or a transceiver.
  • the transceiver module of Part 1230 can also be referred to as a transceiver or a transceiver, etc. It includes an antenna 1233 and a radio frequency circuit (not shown in the figure), wherein the radio frequency circuit is mainly used for radio frequency processing.
  • the device used to implement the receiving function in Part 1230 can be regarded as a receiver, and the device used to implement the transmitting function can be regarded as a transmitter, that is, Part 1230 includes a receiver 1232 and a transmitter 1231.
  • the receiver can also be referred to as a receiving module, a receiver, or a receiving circuit, etc.
  • the transmitter can be referred to as a transmitting module, a transmitter, or a transmitting circuit, etc.
  • Part 1210 and part 1220 may include one or more single boards, each of which may include one or more processors and one or more memories.
  • the processor is used to read and execute the program in the memory to realize the baseband processing function and the control of the base station. If there are multiple single boards, each single board can be interconnected to enhance the processing capability. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processors at the same time.
  • the transceiver module of part 1230 is used to execute the transceiver-related processes performed by the network device in the embodiments shown in Figures 4, 6, and 8.
  • the processor of part 1210 is used for the processing-related processes performed by the network device in the embodiments shown in Figures 4, 6, and 8.
  • FIG. 12 is merely an example and not a limitation, and the network device including the processor, the memory, and the transceiver may not rely on the structure shown in FIG. 10 or FIG. 12 .
  • the chip When the communication device 1200 is a chip, the chip includes a transceiver, a memory, and a processor.
  • the transceiver may be an input/output circuit or a communication interface;
  • the processor may be a processor, a microprocessor, or an integrated circuit integrated on the chip.
  • the sending operation of the network device in the above method embodiment may be understood as the output of the chip, and the receiving operation of the network device in the above method embodiment may be understood as the output of the chip. enter.
  • An embodiment of the present application also provides a computer-readable storage medium on which are stored computer instructions for implementing the method executed by a terminal device or a network device in the above method embodiment.
  • the computer when the computer program is executed by a computer, the computer can implement the method performed by the terminal device or the network device in the above method embodiment.
  • An embodiment of the present application also provides a computer program product comprising instructions, which, when executed by a computer, enables the computer to implement the method executed by a terminal device or a network device in the above method embodiment.
  • the present application also provides a communication system, which includes the terminal device in the above embodiment and the network device in the above embodiment.
  • the terminal device is used to perform some or all of the operations performed by the terminal device in the above method embodiment
  • the network device is used to perform some or all of the operations of the network device in the above method embodiment.
  • An embodiment of the present application also provides a chip device, including a processor, for calling a computer program or computer instruction stored in the memory so that the processor executes the method provided in the embodiments shown in Figures 4, 6 and 8 above.
  • the input of the chip device corresponds to the receiving operation in any one of the embodiments shown in Figures 4, 6 and 8 above
  • the output of the chip device corresponds to the sending operation in any one of the embodiments shown in Figures 4, 6 and 8 above.
  • the processor is coupled to the memory via an interface.
  • the chip device further comprises a memory, in which computer programs or computer instructions are stored.
  • the processor mentioned in any of the above places may be a general-purpose central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the method provided in any of the embodiments shown in Figures 4, 6 and 8.
  • the memory mentioned in any of the above places may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM), etc.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the part that essentially contributes to the technical solution of the present application or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.

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Abstract

La présente demande concerne un procédé d'indication de faisceau et un appareil associé. Le procédé selon la présente demande comprend les étapes suivantes : un dispositif terminal reçoit des premières informations d'indication en provenance d'un dispositif de réseau, les premières informations d'indication étant utilisées pour indiquer qu'un faisceau de service du dispositif terminal est un faisceau d'interpolation spatiale ou un faisceau multiple concomitant, et le faisceau d'interpolation spatiale ou le faisceau multiple concomitant est déterminé sur la base d'une pluralité de faisceaux de transmission d'activation. Par conséquent, le dispositif de réseau indique un faisceau de service spécifique au dispositif terminal, et l'efficacité et la précision d'indication de faisceau sont améliorées.
PCT/CN2023/123830 2023-10-10 2023-10-10 Procédé d'indication de faisceau et appareil associé Pending WO2025076698A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109089322A (zh) * 2017-06-14 2018-12-25 维沃移动通信有限公司 一种上行多波束传输方法、终端及网络设备
CN109302720A (zh) * 2017-07-25 2019-02-01 华为技术有限公司 一种选择波束的方法及设备
CN109315009A (zh) * 2018-09-20 2019-02-05 北京小米移动软件有限公司 一种通信方法、装置、终端、基站和存储介质
WO2022237637A1 (fr) * 2021-05-11 2022-11-17 大唐移动通信设备有限公司 Procédé et appareil de traitement d'informations, terminal et dispositif de réseau

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109089322A (zh) * 2017-06-14 2018-12-25 维沃移动通信有限公司 一种上行多波束传输方法、终端及网络设备
CN109302720A (zh) * 2017-07-25 2019-02-01 华为技术有限公司 一种选择波束的方法及设备
CN109315009A (zh) * 2018-09-20 2019-02-05 北京小米移动软件有限公司 一种通信方法、装置、终端、基站和存储介质
WO2022237637A1 (fr) * 2021-05-11 2022-11-17 大唐移动通信设备有限公司 Procédé et appareil de traitement d'informations, terminal et dispositif de réseau

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