WO2018028470A1 - Procédé de gestion de faisceau et équipement associé - Google Patents

Procédé de gestion de faisceau et équipement associé Download PDF

Info

Publication number
WO2018028470A1
WO2018028470A1 PCT/CN2017/095439 CN2017095439W WO2018028470A1 WO 2018028470 A1 WO2018028470 A1 WO 2018028470A1 CN 2017095439 W CN2017095439 W CN 2017095439W WO 2018028470 A1 WO2018028470 A1 WO 2018028470A1
Authority
WO
WIPO (PCT)
Prior art keywords
target
downlink
uplink
receiving
notification message
Prior art date
Application number
PCT/CN2017/095439
Other languages
English (en)
Chinese (zh)
Inventor
高秋彬
陈润华
塔玛拉卡拉盖施
苏昕
Original Assignee
电信科学技术研究院
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.)
Filing date
Publication date
Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Publication of WO2018028470A1 publication Critical patent/WO2018028470A1/fr

Links

Images

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
    • 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
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a beam management method and related equipment.
  • all-digital large-scale antennas can have up to 128/256/512 antenna elements and up to 128/256/512 transceivers.
  • each antenna element is connected to a transceiver unit.
  • the terminal measures channel state information and feeds back by transmitting pilot signals up to 128/256/512 antenna ports.
  • an antenna array of up to 32/64 antenna elements can also be configured.
  • each antenna element Due to the all-digital antenna array, each antenna element has a separate transceiver unit, which will greatly increase the size, cost and power consumption of the device.
  • a technical solution based on analog beamforming is proposed.
  • the main feature of the analog beamforming is weighted shaping of the intermediate frequency or radio frequency signal by the phase shifter.
  • the advantage is that all transmit (receive) antennas have only one transceiver unit, which is simple to implement, reducing cost, size and power consumption.
  • a digital analog hybrid beamforming transceiver architecture scheme in which the transmitting end and the receiving end respectively have with Transceiver unit, number of antennas at the transmitting end Receiver antenna number
  • the maximum number of parallel transport streams supported by beamforming is Such a hybrid beamforming structure balances the flexibility of digital beamforming and the low complexity of analog beamforming, and has the ability to support multiple data streams and simultaneous shaping of multiple users, while complexity is also controlled. Within a reasonable range.
  • the first device Receiving, by the first device, a first beam switching notification message sent by the second device, where the first beam switching notification message includes an identifier of a target beam to be switched, where the target beam is one or more beams;
  • the first device switches to a beam corresponding to the target beam or the target beam, including:
  • the first device switches to the beam corresponding to the target beam or the target beam according to the identifier.
  • the target beam is a target downlink transmit beam
  • the first device switches to a beam corresponding to the target beam or the target beam according to the identifier, including:
  • the method further includes:
  • the first device selects one or more downlink transmit beams of the multiple downlink transmit beams as the recommended downlink transmit beam by measuring the multiple downlink beam training signals;
  • the first device sends the information about the recommended downlink transmission beam to the second device, so that the second device determines, according to the information about the recommended downlink transmission beam, whether to change the downlink transmission of the signal transmitted by the first device. Beam.
  • the first device determines a downlink receiving beam corresponding to the multiple downlink transmitting beams from the plurality of downlink receiving beams of the first device, and saves a correspondence between the multiple downlink transmitting beams and the corresponding downlink receiving beams.
  • the method further includes:
  • the first device receives a second beam switching notification message sent by the second device, where the second beam switching notification message includes an identifier of a target uplink sending beam to be switched, and the target uplink sending beam is one Or multiple beams;
  • the first device switches to the target uplink transmission beam.
  • the effective time of the second beam switching notification message is that the first device receives the receiving time of the second beam switching notification message plus a time interval, where the time interval is Preset, or the time interval is switched by the second beam notification message
  • the time interval information carried in is determined.
  • the method further includes:
  • the first device sends a plurality of uplink beam training signals to the second device, where the multiple uplink beam training signals are training signals of multiple uplink transmit beams of the first device, so that the second device Determining whether it is necessary to change an uplink transmit beam of the first device.
  • the target beam is a target uplink transmit beam
  • the first device switches to a beam corresponding to the target beam or the target beam according to the identifier, including:
  • the first device switches to the target uplink transmit beam according to the identifier.
  • a beam management method including:
  • the second device receives, by the first device, a first beam switching notification message, where the first beam switching notification message includes an identifier of a target beam to be switched, and the target beam is one or more beams;
  • the second device switches to the target beam or a beam corresponding to the target beam.
  • the second device switches to the target beam or the beam corresponding to the target beam, including:
  • the second device switches to the target beam or the beam corresponding to the target beam.
  • the effective time of the first beam switching notification message is that the first device receives the receiving time of the first beam switching notification message plus a time interval, where the time interval
  • the time interval is determined by the time interval information carried in the first beam switching notification message.
  • the first beam switching notification message includes time-frequency resource indication information, where the time-frequency resource indication information is used to indicate an effective time-frequency resource location of the target beam.
  • the time-frequency resource indication information is used to indicate an effective time-frequency resource location of each of the multiple beams.
  • the target beam is a target downlink transmit beam
  • the second device switches to the target beam or the beam corresponding to the target beam, including:
  • the method further includes:
  • the second device sends a plurality of downlink beam training signals to the first device, where the multiple downlink beam training signals are training signals of multiple downlink transmit beams of the second device;
  • the second device receives the information about the recommended downlink transmission beam sent by the first device, where the recommended downlink transmission beam is the measurement by the first device by using the training signal of the multiple downlink beams.
  • the second device determines, according to the information about the recommended downlink transmit beam, whether to change a downlink transmit beam that transmits a signal to the first device.
  • the second device sends a second beam switching notification message to the first device, where the second beam switching notification message includes an identifier of a target uplink sending beam to be switched, and the target uplink sending beam is one or Multiple beams;
  • the second device switches to a target uplink receive beam.
  • the second device switches to the target uplink receiving beam, including:
  • the effective time of the second beam switching notification message is that the first device receives the receiving time of the second beam switching notification message plus a time interval, where the time interval is Preset, or the time interval is determined by time interval information carried in the second beam switching notification message.
  • the method further includes:
  • the second device receives an uplink beam training signal sent by the first device
  • the second device determines the target uplink transmit beam according to the uplink beam training signal.
  • the second device uses the target uplink receiving beam to receive an uplink beam training signal sent by the first device.
  • the method further includes:
  • the target beam is a target uplink transmit beam
  • the second device switches to the target beam or the beam corresponding to the target beam, including:
  • a device being a first device, including:
  • a first receiving module configured to receive a first beam switching notification message sent by the second device, where the first beam switching notification message includes an identifier of a target beam to be switched, where the target beam is one or more beams ;
  • the first switching module is configured to switch to a beam corresponding to the target beam or the target beam according to the identifier after the first beam switching notification message is valid.
  • the effective time of the first beam switching notification message is that the first device receives the receiving time of the first beam switching notification message plus a time interval, where the time interval Predetermined, or the time interval is determined by the time interval information carried in the first beam switching notification message.
  • the first beam switching notification message includes time-frequency resource indication information, where the time-frequency resource indication information is used to indicate an effective time-frequency of the target beam. Resource location.
  • the time-frequency resource indication information is used to indicate an effective time-frequency resource location of each of the multiple beams.
  • the target beam is a target downlink transmit beam
  • the first switching module is configured to switch to a downlink receive beam corresponding to the target downlink transmit beam according to the identifier.
  • the device further includes:
  • a second receiving module configured to receive a plurality of downlink beam training signals sent by the second device, where the multiple downlink beam training signals are training signals of multiple downlink transmit beams of the second device;
  • a first sending module configured to send information about the recommended downlink transmit beam to the second device, to enable the second device to determine, according to information about the recommended downlink transmit beam, whether to change a signal for transmitting the first device Downstream transmit beam.
  • a first determining module configured to determine, from a plurality of downlink receiving beams of the first device, a downlink receiving beam corresponding to the recommended downlink transmitting beam, and save a correspondence between the recommended downlink transmitting beam and a corresponding downlink receiving beam Relationship;
  • the device further includes:
  • a third receiving module configured to receive a second beam switching notification message sent by the second device, where the second beam switching notification message includes an identifier of a target uplink sending beam to be switched, and the target uplink transmitting beam One or more beams;
  • a second switching module configured to switch to the target uplink transmit beam.
  • the second switching module is configured to cut in the second beam After the notification message is valid, the target uplink transmission beam is switched.
  • the effective time of the second beam switching notification message is that the first device receives the receiving time of the second beam switching notification message plus a time interval, where the time interval is Preset, or the time interval is determined by time interval information carried in the second beam switching notification message.
  • the device further includes:
  • a second sending module configured to send, to the second device, a plurality of uplink beam training signals, where the multiple uplink beam training signals are training signals of multiple uplink transmit beams of the first device, so that the The second device determines whether it is necessary to change the uplink transmit beam of the first device.
  • a device is provided, the device being a second device, including:
  • the effective time of the first beam switching notification message is that the first device receives the receiving time of the first beam switching notification message plus a time interval, where the time interval
  • the time interval is determined by the time interval information carried in the first beam switching notification message.
  • the first beam switching notification message includes time-frequency resource indication information, where the time-frequency resource indication information is used to indicate an effective time-frequency resource location of the target beam.
  • the time-frequency resource indication information is used to indicate an effective time-frequency resource location of each of the multiple beams.
  • the time-frequency resource indication information is used to indicate the multiple The beams are transmitted in the same subframe and indicate the effective frequency domain resource location of each beam within the subframe.
  • the target beam is a target downlink transmit beam
  • the first switching module is configured to switch to a target downlink transmit beam
  • the device further includes:
  • a second sending module configured to send, to the first device, a plurality of downlink beam training signals, where the multiple downlink beam training signals are training signals of multiple downlink transmit beams of the second device;
  • a first determining module configured to determine, according to the information about the recommended downlink transmit beam, whether to change a downlink transmit beam that transmits a signal to the first device.
  • a second sending module configured to send a second beam switching notification message to the first device, where the second beam switching notification message includes an identifier of a target uplink sending beam to be switched, where the target uplink sending beam is One or more beams;
  • the second switching module is configured to switch to a target uplink receiving beam before sending the second beam switching notification message
  • the second switching module is configured to switch to the target uplink receiving beam after the second beam switching notification message is valid, where the target uplink sending beam corresponds to the target uplink receiving beam.
  • the effective time of the second beam switching notification message is that the first device receives the receiving time of the second beam switching notification message plus a time interval, where the time interval is Preset, or the time interval is determined by time interval information carried in the second beam switching notification message.
  • a second receiving module configured to receive an uplink beam training signal sent by the first device
  • a third determining module configured to determine, according to the target downlink transmit beam, the target uplink receive beam
  • the second receiving module is configured to receive an uplink beam training signal sent by the first device by using the target uplink receiving beam.
  • the device further includes:
  • a fifth determining module configured to determine, by receiving the uplink signal sent by the first device, the target uplink receiving beam corresponding to the target uplink sending beam.
  • a memory coupled to the processor via a bus interface and configured to store programs and data used by the processor in performing operations
  • the second device When the processor invokes and executes the program and data stored in the memory, the second device performs a process of: receiving, by the first device, a first beam switching notification message, where The first beam switching notification message includes an identifier of a target beam to be switched, and the target beam is one or more beams;
  • FIG. 1 is a schematic structural diagram of a network applicable to an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart diagram of a beam management method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of a timing of beam management according to an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart of another beam management sequence provided by an embodiment of the present disclosure.
  • FIG. 5 is a schematic flowchart diagram of another beam management method according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of another beam management method according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of another terminal according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another terminal according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another terminal according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 17 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 18 is a schematic structural diagram of another terminal according to an embodiment of the present disclosure.
  • the first device may be a terminal or a base station, and the second device may also be a terminal or a base station, for example, the first device is a terminal, and the second device is a base station, and the terminal and the base station may be implemented.
  • the beam, or the first device is a base station, and the second device is a terminal, and the beam between the terminal and the base station can also be implemented, or the first device is a base station, and the second device is also a base station, and the base station and the base station can be implemented.
  • the beam alignment between the terminal and the terminal can be achieved by the beam alignment between the terminal and the terminal.
  • the first device is not limited to a terminal or a base station.
  • the first device may also be another network side device or a communication device.
  • the second device is not limited to only The terminal or the device, for example, the second device may also be another network side device or a communication device, which is not limited by the embodiment of the present disclosure.
  • the first device is used as the terminal, and the second device is used as the base station for example.
  • the first device is a base station, the second device is also a base station, and the first device is a base station, and the second device is a second device.
  • the first device is a base station
  • the second device is also a base station
  • the first device is a base station
  • the second device is a second device.
  • the meaning of the base station switching to the beam is that the base station will use the beam when it needs to perform data transmission with the terminal in the future, instead of the base station continuously using the beam for transmission.
  • the target beam is a target downlink transmission beam
  • the meaning of the base station switching to the target downlink transmission beam is that the base station will use the target downlink transmission beam when transmitting data to the terminal in the future, and the base station switches to the target uplink reception beam.
  • the meaning is In the future, the station will use the target uplink receiving beam to receive data when receiving the above terminal, instead of the base station continuously using the beam for receiving.
  • the terminal switches to a beam corresponding to the target beam or the target beam, including:
  • the effective time of the first beam switching notification message is that the terminal receives the receiving time of the first beam switching notification message plus a time interval, where the time interval is preset, or The time interval is determined by the time interval information carried in the first beam switching notification message.
  • the foregoing time interval is preset. It can be understood that the time interval is fixed.
  • the terminal and the base station may pre-negotiate the time interval.
  • the terminal may perform the handover after receiving the first beam switching notification message by default, that is, the first beam switching notification message is determined to be valid, which is not limited in this disclosure.
  • the first beam switching notification message includes time-frequency resource indication information, where the time-frequency resource indication information is used to indicate an effective time-frequency resource location of the target beam.
  • an effective time-frequency resource location indicating the target beam in the beam switching notification message may be implemented.
  • the effective time-frequency resource location of the target beam can be understood as the time-frequency resource location of the beam that the terminal uses or uses the beam corresponding to the target beam.
  • the target beam is a downlink transmit beam
  • the effective time-frequency resource location may be a base station. The time-frequency resource location of the downlink transmit beam is used, and the time-frequency resource location of the downlink receive beam corresponding to the downlink transmit beam is used by the terminal.
  • the time-frequency resource indication information is used to indicate an effective time-frequency resource location of each of the multiple beams.
  • the time-frequency resource indication information is used to indicate that the multiple beams are transmitted in the same subframe, and the effective frequency domain resource location of each beam in the subframe is indicated.
  • the target beam when the target beam is multiple, the effective time-frequency position of each beam may be indicated.
  • the target beam is multiple downlink transmit beams, such as T downlink transmit beams, and the base station may follow a certain
  • T beams uses T beams on different time-frequency resources.
  • T beams are used in T subframes (or OFDM symbols, or other time units), one beam is transmitted in each subframe, and cycles are cycled in T subframes.
  • indicating that multiple beams are transmitted in the same subframe and indicating effective frequency domain resource locations of each beam in the subframe, that is, different frequency domain resources in one subframe. It can also be transmitted with different beams.
  • the time-frequency resource indication information may also be indicated in a period of time, and the effective time-frequency resource location of the target beam may be circulated in the time.
  • the time-frequency resource indication information may be a mapping relationship between a beam and a time-frequency resource, and the mapping relationship may be represented by a beam pattern, that is, the first beam switching notification message may include a beam pattern. To indicate the effective time-frequency resource location of the target beam.
  • the target beam is a target downlink transmit beam
  • the terminal switches to the beam corresponding to the target beam or the target beam according to the identifier, including:
  • the base station may notify the terminal to switch to the downlink receiving beam corresponding to the target downlink transmission beam, where the downlink receiving beam corresponding to the target downlink transmitting beam may be predetermined by the terminal.
  • the target downlink transmission beam may be defined as a second downlink transmission beam
  • the downlink transmission beam used by the base station to transmit data to the user terminal may be defined as a first downlink transmission beam.
  • the downlink receiving wave corresponding to the downlink transmission beam of the target The bundle may be defined as a second downlink receive beam
  • the downlink receive beam previously used by the terminal may be defined as a first downlink receive beam.
  • the method further includes:
  • the beam training signal of the downlink transmission beam may be sent by the base station after the beamforming weight corresponding to the downlink transmission beam, and the beam training signal may be sent periodically or periodically.
  • the terminal may send the information about the recommended downlink transmission beam to the base station, and may report the related information of the recommended downlink transmission beam to the base station.
  • Relevant information includes an identifier identifying the downlink transmit beam, such as the number of the downlink transmit beam.
  • the information of the recommended downlink transmission beam fed back by the terminal may be different according to the multiplexing manner of the downlink beam or the beam training signal.
  • the downlink beamforming signal is time-division multiplexed in different OFDM symbols or subframes, and the terminal measures and feeds back the selected downlink time information (OFDM symbol or subframe index).
  • the terminal determines a downlink receiving beam corresponding to the plurality of downlink transmitting beams from the plurality of downlink receiving beams of the terminal, and saves a correspondence between the multiple downlink transmitting beams and the corresponding downlink receiving beams.
  • the terminal has a total Receive beams, each receive beam corresponding to a set of beamforming weights, and the receive beam shaping weight of the nth beam
  • L is the number of antenna elements of the beamforming, which may be smaller than the number of antenna elements of the terminal.
  • the terminal may separately try to receive each of the received beams, and select the receiving beam with the strongest received signal power as the receiving beam of the downlink transmitting beam.
  • the base station may switch to the uplink receiving beam corresponding to the target uplink transmitting beam after the effective time, but is not limited.
  • the method further includes:
  • the receiving beam of the base station may be selected from the candidate receiving beams.
  • Base station Receive beams, each receive beam corresponding to a set of beamforming weights, and the receive beam shaping weight of the nth beam
  • K is the number of beam-formed antenna elements, which can be smaller than the number of antenna elements of the base station.
  • the base station may separately attempt to receive each of the received beams, and select the receiving beam with the strongest received signal power as the receiving beam of the uplink transmitting beam. For example, the base station determines the target uplink transmit beam by using the best uplink transmit beam, and determines the receive beam corresponding to the best uplink transmit beam as the target uplink receive beam to be switched.
  • the uplink beam training process is performed, and the second beam switching notification message is used to implement that the base station switches to the target uplink receiving beam (the second uplink receiving beam) by using the uplink receiving beam (the first uplink receiving beam) used by the terminal to receive the foregoing terminal transmission signal, and the terminal
  • the previously transmitted uplink transmit beam (first uplink transmit beam) is switched to the target uplink transmit beam (second uplink transmit beam).
  • the base station uses the first uplink receiving beam to receive the uplink transmit beam training signal for example.
  • the base station downlink transmit beam and the uplink receive beam have a certain correspondence relationship, that is, for a terminal, after the downlink transmit beam to which the signal is transmitted is given, the target uplink receive beam can be determined by the corresponding relationship, and the uplink receive beam is determined by the uplink receive beam.
  • the uplink signal, channel or data of the terminal can be reliably received.
  • the target beam is a target uplink transmit beam
  • the terminal switches to a beam corresponding to the target beam or the target beam according to the identifier, including:
  • the terminal receives the first beam switching notification message sent by the base station, where the first beam switching notification message includes an identifier of the target beam to be switched to; the terminal switches to the target beam according to the identifier. Corresponding beam or the target beam. In this way, the terminal switches the beam according to the handover notification message sent by the base station to implement beam alignment between the base station and the terminal.
  • the base station receives, by the terminal, a first beam switch notification message, where the first beam switch notification message includes an identifier of a target beam to be switched, where the target beam is one or more beams.
  • the base station switches to the target beam or a beam corresponding to the target beam.
  • the first beam switching notification message includes time-frequency resource indication information, where the time-frequency resource indication information is used to indicate an effective time-frequency resource location of the target beam.
  • the time-frequency resource indication information is used to indicate that the multiple beams are transmitted in the same subframe, and the effective frequency domain resource location of each beam in the subframe is indicated.
  • the target beam is a target downlink transmit beam
  • the base station switches to the target beam or the beam corresponding to the target beam, including:
  • the base station switches to a target downlink transmit beam.
  • the method further includes:
  • the base station determines the target uplink transmit beam according to the uplink beam training signal.
  • the base station receives a plurality of uplink beam training signals sent by the terminal, and the plurality of uplink beam training signals are training signals of multiple uplink transmit beams of the terminal;
  • the base station selects one or more uplink transmit beams of the multiple uplink transmit beams as a priority uplink transmit beam by measuring the multiple uplink beam training signals;
  • the target uplink transmit beam is the priority uplink transmit beam, or the target uplink transmit beam includes one of the priority uplink transmit beams Or multiple.
  • the method further includes:
  • the base station uses the target uplink receiving beam to receive an uplink beam training signal sent by the terminal.
  • the implementation may be implemented by combining the target beam as a target downlink transmit beam, and the base station may determine the target uplink receive beam before sending the second beam switch notification message or before receiving the uplink beam training signal.
  • the second uplink receiving beam is configured, and the target uplink receiving beam may be determined by the correspondence between the target downlink transmitting beam (the second downlink transmitting beam) and the target uplink receiving beam, or the target uplink may be determined according to the beamforming weight of the target downlink transmitting beam.
  • the target downlink transmission beam may be the base station before determining the target uplink reception beam.
  • the downlink transmit beam used by the UE to transmit data.
  • the method further includes:
  • the base station determines the target uplink receiving beam corresponding to the target uplink sending beam by receiving an uplink signal sent by the terminal.
  • the base station switches to an uplink receiving beam corresponding to the target uplink transmitting beam.
  • the present embodiment is an implementation manner of a base station corresponding to the embodiment shown in FIG. 2.
  • a specific implementation manner refer to the related description of the embodiment shown in FIG. The examples will not be described again.
  • beam alignment between the base station and the terminal can also be implemented.
  • the beam training signal of each beam is formed by shaping a beam shaping weight corresponding to the beam.
  • the beam training signal is sent periodically or aperiodically.
  • Step 2 The terminal receives the downlink beam training signal sent by the base station, and selects a recommended downlink transmission beam by measuring the beam training signal. For example, the terminal may select the beam with the strongest received power of the training signal as the recommended beam.
  • the recommended beam is one beam or multiple beams.
  • the terminal For each recommended downlink transmit beam, the terminal determines a corresponding receive beam (it may also be a corresponding receive beam for all downlink transmit beams, not limited to the recommended beam).
  • the receive beam of the terminal may be selected from candidate receive beams.
  • the terminal saves the downlink receiving beam corresponding to the recommended downlink transmitting beam.
  • the terminal needs to save the correspondence between the recommended downlink transmit beam and the downlink receive beam.
  • the terminal saves the downlink receiving beams corresponding to all the downlink sending candidate beams, and saves the corresponding relationship.
  • the downlink receiving beam may refer to its number in all candidate downlink receiving beams, or may refer to downlink receiving beamforming. The weight itself.
  • the beam switching notification message may further include indication information of the effective time-frequency resource, that is, a time-frequency resource location indicating that the terminal will apply the target beam (second downlink beam), for example, indicating which subframes the terminal is in (which PRB/ The target beam is applied in the subband.
  • indication information of the effective time-frequency resource that is, a time-frequency resource location indicating that the terminal will apply the target beam (second downlink beam), for example, indicating which subframes the terminal is in (which PRB/ The target beam is applied in the subband.
  • Step 7 The terminal sends an uplink transmit beam training signal.
  • the beam training signal of each beam is shaped by the beamforming weight corresponding to the beam.
  • the uplink transmit beam training signal of the terminal is sent on the resources configured by the base station.
  • the configured resources are periodic resources or acyclic resources.
  • Step 8 The base station receives the uplink beam training signal sent by the terminal, and selects an optimal uplink transmission beam for the terminal by measuring the beam training signal. For example, the base station may select the beam with the strongest received power of the training signal as the best beam.
  • the base station determines the best received beam corresponding to the uplink transmit beam by receiving the uplink beam training signal (or other signal) sent by the terminal.
  • the base station uses the receive beam corresponding to the best uplink transmit beam as the second uplink receive beam.
  • the base station determines the second uplink receiving beam, the second uplink receiving beam, and the second downlink according to the channel reciprocity or the correspondence between the uplink receiving beam and the downlink transmitting beam of the base station.
  • the second uplink receive beam is the uplink to be used by the uplink signal of the receiving terminal after the base station switches the downlink transmit beam to the second downlink transmit beam. Receive beam.
  • Step 9 The base station determines whether the terminal needs to change the uplink sending beam, and if it needs to change, sends an uplink sending beam switching notification message to the terminal.
  • the message includes an identifier of the target beam to which the uplink transmission is to be switched (the second uplink transmission beam, and the beam before the handover is the first uplink transmission beam).
  • the effective time of the message is the time + time interval of receiving the message, the time interval is fixed, or the time interval information is carried in the message.
  • the terminal 700 includes the following modules:
  • the first receiving module 701 is configured to receive a first beam switching notification message sent by the base station, where the first beam switching notification message includes an identifier of a target beam to be switched, where the target beam is one or more beams;
  • the first switching module 702 is configured to switch to a beam corresponding to the target beam or the target beam according to the identifier.
  • the first switching module 702 is configured to switch to a beam corresponding to the target beam or the target beam according to the identifier after the first beam switching notification message is valid.
  • the effective time of the first beam switching notification message is that the terminal receives the receiving time of the first beam switching notification message plus a time interval, where the time interval is preset, or The time interval is determined by the time interval information carried in the first beam switching notification message.
  • the first beam switching notification message includes time-frequency resource indication information, where the time-frequency resource indication information is used to indicate an effective time-frequency resource location of the target beam.
  • the selecting module 704 is configured to select one or more downlink transmit beams of the multiple downlink transmit beams as the recommended downlink transmit beam by using the measurement of the multiple downlink beam training signals;
  • the first sending module 705 is configured to send, to the base station, information about the recommended downlink transmit beam, so that the base station determines, according to information about the recommended downlink transmit beam, whether to change a downlink transmit beam that is used to transmit a signal to the terminal.
  • the terminal further includes:
  • the first determining module 706 is configured to determine, according to the downlink receiving beams of the terminal, a downlink receiving beam corresponding to the recommended downlink transmitting beam, and save a correspondence between the recommended downlink transmitting beam and a corresponding downlink receiving beam. ;or
  • the terminal further includes:
  • the second switching module 709 is configured to switch to the target uplink transmit beam after the second beam switch notification message is valid.
  • the terminal further includes:
  • the first switching module 1202 is configured to switch to the target beam or the beam corresponding to the target beam after the first beam switching notification message is valid.
  • the first beam switching notification message includes time-frequency resource indication information, where the time-frequency resource indication information is used to indicate an effective time-frequency resource location of the target beam.
  • the base station further includes
  • a third determining module 12010 configured to determine, according to the target downlink transmit beam, the target uplink receive beam
  • the foregoing base station 1200 may be a base station in any of the method embodiments in the embodiments of the present disclosure, and any implementation manner of the base station in the method embodiment in this disclosure may be implemented by this embodiment.
  • the base station 1200 in the example is implemented, and achieves the same beneficial effects, and details are not described herein again.
  • processor 1800 is further configured to:
  • processor 1800 is further configured to:
  • the switching to the target uplink transmit beam includes:
  • the effective time of the second beam switching notification message is that the terminal receives the time of receiving the second beam switching notification message plus a time interval, where the time interval is preset, or the time The interval is determined by the time interval information carried in the second beam switching notification message.
  • processor 1800 is further configured to:
  • the transceiver 1810 Sending, by the transceiver 1810, a plurality of uplink beam training signals to the base station, where the multiple uplink beam training signals are training signals of multiple uplink transmit beams of the terminal, so that the base station determines whether the terminal needs to be changed.
  • Uplink transmit beam
  • the target beam is a target uplink transmit beam
  • the identifier of the terminal is switched to a beam corresponding to the target beam or the target beam, including:
  • the foregoing terminal may be a terminal in any embodiment of the method embodiment in the embodiment of the present disclosure, and any implementation manner of the terminal in the method embodiment in the embodiment of the present disclosure may be used in this embodiment.
  • any implementation manner of the terminal in the method embodiment in the embodiment of the present disclosure may be used in this embodiment.
  • the processor 1900 is configured to read a program in the memory 1920 and perform the following processes:
  • the processor 1900 is responsible for managing the bus architecture and general processing, and the memory 1920 can store data used by the processor 1900 in performing operations.
  • the effective time of the first beam switching notification message is that the terminal receives the receiving time of the first beam switching notification message plus a time interval, where the time interval is preset, or The time interval is determined by the time interval information carried in the first beam switching notification message.
  • the time-frequency resource indication information is used to indicate An effective time-frequency resource location for each of the plurality of beams.
  • the time-frequency resource indication information is used to indicate that the multiple beams are transmitted in the same subframe, and the effective frequency domain resource location of each beam in the subframe is indicated.
  • processor 1900 is further configured to:
  • the transceiver 1910 Sending, by the transceiver 1910, a plurality of downlink beam training signals to the terminal, where the multiple downlink beam training signals are training signals of multiple downlink transmit beams of the base station;
  • the transceiver 1910 Receiving, by the transceiver 1910, the information about the recommended downlink transmission beam sent by the terminal, where the recommended downlink transmission beam is the measurement by the terminal by using the measurement of the multiple downlink beam training signals, in the multiple downlink transmission beams.
  • processor 1900 is further configured to:
  • the transceiver 1910 Sending, by the transceiver 1910, a second beam switch notification message to the terminal, where the second beam switch notification message includes an identifier of a target uplink transmit beam to be switched, and the target uplink transmit beam is one or more beams. ;
  • the switching to the target uplink receiving beam includes:
  • the effective time of the second beam switching notification message is that the first device receives the receiving time of the second beam switching notification message plus a time interval, where the time interval is preset, or The time interval is determined by time interval information carried in the second beam switching notification message.
  • the effective time of the first beam switching notification message is that the terminal receives the The receiving time of the first beam switching notification message is added to the time interval, wherein the time interval is preset, or the time interval is determined by the time interval information carried in the first beam switching notification message.
  • processor 1900 is further configured to:
  • Determining the target uplink transmit beam according to the uplink beam training signal Determining the target uplink transmit beam according to the uplink beam training signal.
  • processor 1900 is further configured to:
  • Receiving the uplink beam training signal sent by the terminal including:
  • processor 1900 is further configured to:
  • the target beam is a target uplink transmit beam
  • the switching to the target beam or the beam corresponding to the target beam includes:
  • the foregoing base station may be a base station in any of the method embodiments in the embodiments of the present disclosure, and any implementation manner of the base station in the method embodiment in this disclosure may be used in this embodiment.
  • the above-mentioned base station is implemented, and the same beneficial effects are achieved, and details are not described herein again.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional unit described above is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform part of the steps of the method of transmitting and receiving described in various embodiments of the present disclosure.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

Landscapes

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

Abstract

La présente invention concerne un procédé de traitement de faisceau et un dispositif associé. Le procédé comprend les étapes suivantes : un premier dispositif reçoit un premier message de notification de commutation de faisceau envoyé par un deuxième dispositif. Le premier message de notification de commutation de faisceau comprend un identificateur d'un faisceau cible vers lequel commuter, et le faisceau cible est un ou plusieurs faisceaux. Conformément à l'identificateur, le premier dispositif commute vers un faisceau correspondant au faisceau cible ou commute vers le faisceau cible.
PCT/CN2017/095439 2016-08-12 2017-08-01 Procédé de gestion de faisceau et équipement associé WO2018028470A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610659889.3 2016-08-12
CN201610659889.3A CN107733473A (zh) 2016-08-12 2016-08-12 一种波束管理方法和相关设备

Publications (1)

Publication Number Publication Date
WO2018028470A1 true WO2018028470A1 (fr) 2018-02-15

Family

ID=61161657

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/095439 WO2018028470A1 (fr) 2016-08-12 2017-08-01 Procédé de gestion de faisceau et équipement associé

Country Status (2)

Country Link
CN (1) CN107733473A (fr)
WO (1) WO2018028470A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019161008A1 (fr) * 2018-02-16 2019-08-22 Qualcomm Incorporated Rétroaction de capacité de temps de commutation de faisceau

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110446232B (zh) 2018-05-04 2021-10-29 中国移动通信有限公司研究院 测量上报配置方法、测量上报方法、小区切换方法及设备
CN114845413A (zh) 2018-05-25 2022-08-02 成都华为技术有限公司 通信方法、终端设备和网络设备
WO2021077412A1 (fr) * 2019-10-25 2021-04-29 华为技术有限公司 Procédé et appareil de transmission de données, et dispositif associé
CN112787702B (zh) * 2019-11-08 2022-11-04 华为技术有限公司 网络的切换方法和装置
WO2022021152A1 (fr) * 2020-07-29 2022-02-03 Zte Corporation Procédé de détermination d'état de faisceau
WO2023050208A1 (fr) * 2021-09-29 2023-04-06 北京小米移动软件有限公司 Procédé et appareil de commutation, d'évaluation et de rapport de faisceaux, appareil de communication et support de stockage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110110453A1 (en) * 2009-11-06 2011-05-12 Nec Laboratories America, Inc. Systems and methods for prioritizing beams to enable efficient determination of suitable communication links
CN102271014A (zh) * 2011-06-09 2011-12-07 华为技术有限公司 设备间波束配对方法及设备
CN103718591A (zh) * 2013-09-09 2014-04-09 华为技术有限公司 一种波束追踪的方法、装置和系统
CN103918196A (zh) * 2011-09-16 2014-07-09 三星电子株式会社 用于在无线通信系统中的波束分配的方法及装置
CN104584325A (zh) * 2012-08-21 2015-04-29 高通股份有限公司 更新波束方向图表格

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130018079A (ko) * 2011-08-10 2013-02-20 삼성전자주식회사 무선 통신 시스템에서 빔 고정 장치 및 방법
KR101839386B1 (ko) * 2011-08-12 2018-03-16 삼성전자주식회사 무선 통신 시스템에서의 적응적 빔포밍 장치 및 방법
KR101828836B1 (ko) * 2011-08-23 2018-02-13 삼성전자주식회사 빔 포밍 기반의 무선통신시스템에서 빔 스캐닝을 통한 스케줄링 장치 및 방법
CN105009649B (zh) * 2013-12-19 2019-07-12 华为技术有限公司 一种波束对准的方法及装置
CN104734760A (zh) * 2013-12-20 2015-06-24 中兴通讯股份有限公司 一种实现下行波束索引处理的方法、装置和系统
CN105824019B (zh) * 2016-03-18 2018-04-20 中国人民解放军63921部队 大型分布式空间监测雷达的最优化波束对齐方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110110453A1 (en) * 2009-11-06 2011-05-12 Nec Laboratories America, Inc. Systems and methods for prioritizing beams to enable efficient determination of suitable communication links
CN102271014A (zh) * 2011-06-09 2011-12-07 华为技术有限公司 设备间波束配对方法及设备
CN103918196A (zh) * 2011-09-16 2014-07-09 三星电子株式会社 用于在无线通信系统中的波束分配的方法及装置
CN104584325A (zh) * 2012-08-21 2015-04-29 高通股份有限公司 更新波束方向图表格
CN103718591A (zh) * 2013-09-09 2014-04-09 华为技术有限公司 一种波束追踪的方法、装置和系统

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019161008A1 (fr) * 2018-02-16 2019-08-22 Qualcomm Incorporated Rétroaction de capacité de temps de commutation de faisceau
US11088750B2 (en) 2018-02-16 2021-08-10 Qualcomm Incorporated Feedback of beam switch time capability
TWI796434B (zh) * 2018-02-16 2023-03-21 美商高通公司 波束切換時間能力的反饋

Also Published As

Publication number Publication date
CN107733473A (zh) 2018-02-23

Similar Documents

Publication Publication Date Title
WO2018028470A1 (fr) Procédé de gestion de faisceau et équipement associé
CN112152687B (zh) 通信方法、终端及网络设备
WO2018059154A1 (fr) Procédé de traitement de faisceau, station de base et terminal mobile
US20170026156A1 (en) High Resolution Channel Sounding for FDD Communications
CN108112076B (zh) 配置上行信号的方法及装置
WO2018166345A1 (fr) Procédé et dispositif de détermination de faisceau de transmission de liaison montante
EP2837103B1 (fr) Formation de faisceau tridimensionnelle dans un réseau de communication mobile
WO2018177183A1 (fr) Procédé et dispositif d'acquisition et de renvoi d'informations de faisceau de transmission
JP7157515B2 (ja) ユーザ装置、無線通信方法、基地局及びシステム
WO2018059128A1 (fr) Procédé et dispositif de balayage et de commutation de faisceau d'ondes
WO2014194525A1 (fr) Procédé d'émission de signal pilote, station de base et équipement utilisateur
WO2018175728A1 (fr) Procédures de gestion de faisceau pour équipement d'utilisateur et point d'émission et de réception
CN109005548A (zh) 一种信道质量信息的上报方法及装置
WO2018082497A1 (fr) Procédé et dispositif de traitement d'informations spatiales, et nœud de transmission et support de stockage
CN108736944B (zh) 一种基站、用户设备中的用于多天线传输的方法和装置
WO2018166401A1 (fr) Procédé et appareil de détermination de réciprocité de faisceau de dispositif, et dispositif électronique
WO2018028291A1 (fr) Procédé d'apprentissage de formation de faisceau, terminal, et station de base
CN114631267A (zh) 针对多传输接收点/面板和无小区多输入多输出的信道状态信息开销减少
WO2018059547A1 (fr) Procédé, appareil et système pour envoyer un signal de référence de liaison montante, station de base et terminal
WO2016008528A1 (fr) Procédé, appareil et système
JP2023546938A (ja) ポート情報のシグナリング
CN117015937A (zh) 参考信号资源的传输
WO2018059003A1 (fr) Procédé d'apprentissage de faisceau, terminal, et station de base
CN109150271B (zh) 一种最优波束确定方法、用户终端和网络侧设备
JP7208154B2 (ja) ビーム制御方法、基地局および端末

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17838600

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17838600

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 17838600

Country of ref document: EP

Kind code of ref document: A1