WO2018202104A1 - Procédé de gestion de faisceau et dispositif associé - Google Patents

Procédé de gestion de faisceau et dispositif associé Download PDF

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Publication number
WO2018202104A1
WO2018202104A1 PCT/CN2018/085516 CN2018085516W WO2018202104A1 WO 2018202104 A1 WO2018202104 A1 WO 2018202104A1 CN 2018085516 W CN2018085516 W CN 2018085516W WO 2018202104 A1 WO2018202104 A1 WO 2018202104A1
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Prior art keywords
user equipment
identifier
network device
information
public
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PCT/CN2018/085516
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English (en)
Chinese (zh)
Inventor
施弘哲
毕晓艳
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华为技术有限公司
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Publication of WO2018202104A1 publication Critical patent/WO2018202104A1/fr

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    • 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
    • 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
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]

Definitions

  • the present invention relates to the field of communications, and in particular, to a beam management method and apparatus therefor.
  • Beamforming is a signal preprocessing technique based on an antenna array. Beamforming produces a directional beam by adjusting the weighting coefficients of each element in the antenna array, so that a significant array gain can be obtained.
  • NR New Radio
  • the antenna array introduces beamforming more to obtain gain.
  • the data channel, control channel, synchronization signal, and broadcast signal can all be transmitted through the beam. Therefore, Beam Management (BM) is more important in NR.
  • NR mid-downlink beam management can be divided into three phases: P-1, P-2 and P-3.
  • the user equipment User Equipment, UE
  • the user equipment can select one or more transmit beams by measurement, and establish a transceiving beam association with one or more receive beams.
  • the transmit beam in the established transmit and receive beam association may be from one or more Transmission Access Points (TRPs), and the receive beam may be from the UE.
  • TRPs Transmission Access Points
  • the receive beam may be from the UE.
  • TRPs Transmission Access Points
  • the UE may update the transmit beam in one or more transmit and receive beam associations according to the measurement result.
  • the transmit beam can still come from one or more TRPs, but is generally smaller than the candidate range of the P-1 phase.
  • the UE may update the receive beams in one or more transmit and receive beam associations according to the measurement results.
  • the receive beam can still come from the UE. It will be appreciated that the P-2 phase and the P-3 phase are a subset of the P-1 phase.
  • the UE may move, rotate, or blockage.
  • the above behavior may cause the communication quality to rapidly drop or even be interrupted in the beam access-based system.
  • a series of operations such as reconnection and re-beam scanning are required between the base station and the UE, which brings the delay of resource delay. Therefore, from the perspective of system robustness, multiple transceiver beam associations should be established and maintained to reduce the probability of communication interruption reconnection.
  • the introduction of a public identity is considered to be an efficient and concise method of managing multiple transmit and receive beam associations, that is, the base station establishes and maintains an association between its transmit beam and a public identity associated with the transmit and receive beams, and the UE establishes and maintains its receive beam and transmit and receive beams.
  • the association between the associated public identities may require the UE to monitor the communication quality associated with the plurality of transceiver beams, and enable the better communication and reception beam association to improve the robustness of the communication when the communication quality associated with the current transceiver beam decreases.
  • the system cannot ensure that the public identifier associated with the transmitting and receiving beams sent by the base station can be successfully received by the UE, and the base station and the UE have completely inconsistent subsequent processing on the public identifier sent by the base station.
  • Such a wrong public identity has a significant impact on communication robustness in beam-based systems.
  • the technical problem to be solved by the embodiments of the present invention is to provide a beam management method and a device thereof, which can implement a handshake of a public identity associated with a transmitting and receiving beam between a base station and a user equipment, thereby improving communication robustness based on the beam access system. .
  • an embodiment of the present invention provides a beam management method, including: a network device sends first information carrying at least one public identifier to a user equipment, where the at least one public identifier indicates a transmit beam and a location of the network device. Determining an association between the receiving beams of the user equipment; the network device receiving, by the user equipment, second information that carries a receiving success identifier or a default identifier, where the receiving success identifier indicates that the user equipment is listening to the at least a public identifier, the default identifier indicating that the user equipment does not listen to the at least one public identifier.
  • the network device After the network device sends the first information carrying the at least one public identifier, determining whether the user equipment receives the at least one public identifier by using the received success identifier or the default identifier that is carried by the received second information, the network device and the user equipment may be implemented. At least one handshake of the public identity can further improve the communication robustness of the beam access system.
  • the network device after receiving the second information that is sent by the user equipment and carrying the default identifier, the network device sends, to the user equipment, the first part that carries the at least one public identifier.
  • the at least one common identifier is used to trigger a beam scan, that is, the network device performs beam scanning when transmitting the first information carrying the at least one public identifier,
  • the user equipment performs beam scanning in case receiving the at least one public identity.
  • the network device after receiving the second information that is sent by the user equipment and carrying the success indication, the network device sends a beam scan triggering instruction to the user equipment, where the beam scanning trigger instruction is used. Trigger beam scanning. After the network device receives the second information that is sent by the user equipment and carries the received success identifier, the network device performs a beam scan and sends a beam scan trigger command to trigger the user equipment to perform beam scanning.
  • the network device sends a beam scan triggering instruction to the user equipment before receiving the second information that is sent by the user equipment and carries the receiving success identifier or the default identifier, where the beam scanning trigger is performed.
  • the instruction is used to trigger a beam scan.
  • the network device performs beam scanning and sends a beam scanning trigger command to trigger the user equipment to perform beam scanning.
  • the first information is downlink control information
  • the second information is uplink control information
  • the embodiment of the present invention provides a beam management method, including: a user equipment intercepts first information that is sent by a network device and carries at least one public identifier, where the at least one public identifier indicates a transmit beam of the network device Correlation between the receiving beams of the user equipment; the user equipment sends second information carrying the receiving success identifier or the default identifier to the network device according to the monitoring result, where the receiving success identifier indicates that the user equipment is listening The at least one public identifier, the default identifier indicating that the user equipment does not listen to the at least one public identifier.
  • the user equipment can implement the handshake of the network device and the user equipment for the at least one public identifier by feeding back the second information carrying the success identifier or the default identifier to the network device, thereby improving the communication robustness of the beam access system.
  • the user equipment after the user equipment sends the second information carrying the default identifier to the network device according to the monitoring result, the user equipment is again monitored by the network device to carry the at least one public identifier.
  • the first information is sent to the network device according to the re-listening result, and the second information that carries the receiving success identifier or the default identifier is sent.
  • the at least one common identifier is used to trigger a beam scan, and the user equipment performs beam scanning according to the at least one public identifier.
  • the user equipment after the user equipment sends the second information carrying the success indication to the network device according to the monitoring result, the user equipment receives a beam scan triggering command sent by the network device, and triggers according to the beam scan.
  • the instruction performs beam scanning. That is, the network device and the user equipment perform beam scanning after completing the handshake for the at least one public identity.
  • the user equipment receives a beam scan triggering instruction sent by the network device, before sending the second information that carries the receiving success identifier or the default identifier to the network device according to the monitoring result;
  • the beam scan trigger instruction performs beam scanning. That is, the user equipment performs beam scanning before transmitting the second information.
  • the first information is downlink control information
  • the second information is uplink control information
  • an embodiment of the present invention provides a network device, where the network device has a function of implementing network device behavior in the method in the first aspect.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the network device includes a sending unit and a receiving unit, where the sending unit is configured to send, to the user equipment, first information that carries at least one public identifier, where the at least one public identifier indicates the network Correlation between a transmitting beam of the device and a receiving beam of the user equipment; the receiving unit is configured to receive second information that is sent by the user equipment and that carries a receiving success identifier or a default identifier, where the receiving success identifier indicates The user equipment listens to the at least one public identifier, and the default identifier indicates that the user equipment does not listen to the at least one public identifier.
  • the network device includes a processor and a transceiver, and the transceiver is configured to send, to the user equipment, first information that carries at least one public identifier, where the at least one public identifier indicates An association between a transmit beam of the network device and a receive beam of the user equipment, where the transceiver is further configured to receive second information that is sent by the user equipment and that carries a success identifier or a default identifier, where the receiving The success indicator indicates that the user equipment is listening to the at least one public identity, and the default identity indicates that the user equipment does not listen to the at least one public identity.
  • the principle and the beneficial effects of the network device for solving the problem can be referred to the method and the beneficial effects of the first aspect.
  • the implementation of the network device refer to the implementation of the method in the first aspect. The repetitions are not repeated here.
  • an embodiment of the present invention provides a user equipment, where the user equipment has a function of implementing user equipment behavior in the method in the second aspect.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the user equipment includes a receiving unit and a sending unit, where the receiving unit is configured to listen to first information that is sent by the network device and that carries at least one public identifier, where the at least one public identifier indicates the Correlation between a transmit beam of the network device and a receive beam of the user equipment; the sending unit is configured to send, to the network device, second information that carries a success identifier or a default identifier according to the monitoring result, where the receiving succeeds
  • the identifier indicates that the user equipment is listening to the at least one public identifier, and the default identifier indicates that the user equipment does not listen to the at least one public identifier.
  • the user equipment includes a processor and a transceiver, where the transceiver is configured to monitor, by the network device, first information that carries at least one public identifier, the at least one public identifier indication An association between a transmit beam of the network device and a receive beam of the user equipment; the transceiver is further configured to send, to the network device, second information that carries a receive success identifier or a default identifier according to the interception result, The receiving success indicator indicates that the user equipment is listening to the at least one public identifier, and the default identifier indicates that the user equipment does not listen to the at least one public identifier.
  • the principle and the beneficial effects of the user equipment to solve the problem can be referred to the method and the beneficial effects of the second aspect.
  • the implementation of the user equipment refer to the implementation of the method in the second aspect. The repetitions are not repeated here.
  • an embodiment of the present invention provides a computer readable storage medium, including instructions, when executed on a computer, causing a computer to perform the method on the network device side as described in the first aspect.
  • an embodiment of the present invention provides a computer readable storage medium, including instructions, when executed on a computer, causing a computer to perform the method on the user equipment side as described in the second aspect.
  • the user equipment can feed back the second information carrying the success identifier or the default identifier to the network device, so that the network device can be implemented.
  • the handshake of the public identity associated with the user equipment for the transmit and receive beams can further improve the communication robustness of the beam access system.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of communication of a beam management method according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic diagram of communication of a beam management method according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic diagram of communication of a beam management method according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic diagram of communication of a beam management method according to Embodiment 4 of the present invention.
  • FIG. 6 is a schematic diagram of communication of a beam management method according to Embodiment 5 of the present invention.
  • FIG. 7 is a schematic diagram of a logical structure of a network device according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a physical structure of a network device according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a logical structure of a user equipment according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of the physical structure of a user equipment according to an embodiment of the present invention.
  • the embodiment of the present invention can be applied to a wireless communication system.
  • the wireless communication system is generally composed of a cell.
  • Each cell includes a base station (BS), and the base station provides communication services to multiple user equipments, where the base station is connected to the core network device.
  • the base station includes a baseband unit (BBU) and a remote radio unit (RRU).
  • BBU baseband unit
  • RRU remote radio unit
  • the BBU and the RRU can be placed in different places, for example, the RRU is pulled away, placed in an open area from high traffic, and the BBU is placed in the central computer room.
  • BBUs and RRUs can also be placed in the same room.
  • the BBU and RRU can also be different parts under one rack.
  • the wireless communication system mentioned in the embodiments of the present invention includes, but is not limited to, a Narrow Band-Internet of Things (NB-IoT), a Global System for Mobile Communications (GSM), Enhanced Data Rate for GSM Evolution (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Time Division Synchronization Code Time Division-Synchronization Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), NR system, and future mobile communication systems.
  • NB-IoT Narrow Band-Internet of Things
  • GSM Global System for Mobile Communications
  • EDGE Enhanced Data Rate for GSM Evolution
  • WCDMA Wideband Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • TD-SCDMA Time Division Synchronization Code Time Division-Synchronization Code Division Multiple Access
  • LTE Long Term Evolution
  • NR NR system, and future mobile communication systems.
  • the base station is a device deployed in a radio access network to provide a wireless communication function for a user equipment.
  • the base station may include various forms of macro base stations, micro base stations (also referred to as small stations), relay stations, access points, TRPs, and the like.
  • the names of devices with base station functions may be different, for example, in an LTE system, called an evolved Node B (evolvedNodeB, eNB or eNodeB), in the third generation.
  • eNB evolved Node B
  • 3G 3rd Generation
  • NB Node B
  • the above-mentioned devices for providing wireless communication functions to user equipment are collectively referred to as network devices.
  • the user equipment involved in the embodiments of the present invention may include various handheld devices having wireless communication functions, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to the wireless modem.
  • the user equipment may also be referred to as a mobile station (MS), a terminal (Terminal), and may also include a subscriber unit, a cellular phone, a smart phone, a wireless data card, and an individual.
  • MS mobile station
  • Terminal Terminal
  • PDA Personal Digital Assistant
  • tablet computers wireless modems
  • handsets laptop computers
  • MTC Machine Type Communication
  • the common identifier in the embodiment of the present invention indicates the association between the transmit beam of the base station and the receive beam of the UE, that is, the association of the transmit and receive beams, which may be referred to as a public identifier associated with the transmit and receive beams.
  • the public identifier is used to associate the transmit beam of the base station with the receive beam of the UE.
  • a common identifier may be associated with at least one transmit beam on the base station side and at least one receive beam on the UE side. It can be understood that the public identity is an intermediary between the transmit beam of the base station and the receive beam of the UE.
  • the base station For example, from the perspective of the base station, only the consistency of the transmit beam and the public identifier needs to be maintained, and the specific UE side receive beam information needs to be learned. From the perspective of the UE, only the receive beam and the public identifier need to be maintained. Consistency, without the need to know the specific base station side transmit beam information. More specifically, if there are four transmit beams A, B, C, and D on the base station side, there are two receive beams a and b on the UE side. Assuming a total of 8 possible transmit and receive beam scan combinations, there are 2 eligible transmit and receive beam associations: A-a, C-b, and corresponding 2 public identifiers "T1", "T2".
  • the base station only maintains its transmit beam A and the public identifier "T1", and the relationship between the transmit beam C and the public identifier "T2"; and the UE only maintains its receive beam a and the public identifier "T1", and the receive beam b and the public Identifies the relationship of "T2".
  • the public identifiers "T1" and “T2" become the mediation of the above two pairs of transceiver beam associations, respectively.
  • the carrier of the public identifier associated with the transceiver beam may be an antenna port number, such as a spatial quasi-co-location port (spatial QCLport), or may be a reference signal resource sequence number, such as a channel state information reference signal ( Channel State Information-Reference Signal (CSI-RS) port number or CSI-RS resource index.
  • CSI-RS Channel State Information-Reference Signal
  • a conceptual beam pairing (BPL) with a closer nature of the technology may be substituted for the transceiving beam association, and the public identifier of the transceiving beam association may be described by the BPL public identifier.
  • the definition and name of the public identity associated with the transceiver beam may be changed, but the names consistent with the technical nature of the concept of the present invention are within the scope of protection of the embodiments of the present invention.
  • the system cannot guarantee that the BPL public identity delivered by the base station can be successfully received by the UE, and thus there may be a problem.
  • the UE does not receive the BPL public identity 1 delivered by the base station, but receives the beam scanning trigger command sent by the base station.
  • the base station performs beam scanning as usual, and the UE performs beam scanning as usual to feed back the scanning result, but the base station and the UE pair There was a bias in the "understanding" of this scan.
  • the base station associates the transmit beam A fed back by the UE with the BPL public identity 1 delivered by the UE, and the UE does not associate the receive beam a with the BPL public identity 1, and may not know the public identity at all.
  • the base station When the base station subsequently requests the UE to monitor this new BPL (transmit beam A-receive beam a), the UE does not know which receive beam to use for reception, and the BPL cannot be used. Even when the base station switches to the transmit beam of this new BPL, the UE cannot match and the communication is directly interrupted.
  • the embodiment of the present invention provides a beam management method, which can implement a handshake between a base station and a UE for a BPL public identity, and ensure correct establishment and maintenance of multiple BPLs, thereby improving communication robustness based on the beam access system.
  • FIG. 2 is a schematic diagram of communication of a beam management method according to Embodiment 1 of the present invention, which is introduced from the perspective of interaction between a network device and a user equipment, and the method includes but is not limited to the following steps:
  • Step S201 The network device sends, to the user equipment, first information that carries at least one public identifier.
  • the user equipment may be any user equipment within the coverage of the network equipment, or may be any user equipment outside the coverage of the network equipment. If the user equipment is within the coverage of the network device, the user equipment may receive the at least one public identifier, and may not receive the at least one public identifier. If the user equipment is out of coverage of the network device, the user equipment may not receive the at least one public identifier.
  • the network device sends the first information that carries the at least one public identifier to the user equipment, where the at least one public identifier indicates a transmit beam of the network device and a receive beam of the user equipment.
  • the association between the two that is, the beam pairing relationship.
  • a public identity may be associated with at least one transmit beam of the network device, at least one receive beam of the user equipment.
  • the first information may be Downlink Control Information (DCI), and the at least one public identifier may be indicated by an identifier indicating bit in the DCI, where the number of bits of the identifier indicating bit may be paired with a beam
  • DCI Downlink Control Information
  • the identifier indicating bit uses 2 bits to indicate the public identifier of the beam pairing relationship.
  • the DCI further carries a beam scanning triggering instruction, where the beam scanning triggering instruction can occupy 1 bit, for example, when the bit is set to “1”, the beam scanning triggering instruction is carried, and the bit is carried. When "0" is set, it means that the beam scan triggering instruction is not carried.
  • the network device sends the DCI carrying the at least one common identifier and the beam scan triggering command
  • the network device may perform beam scanning, that is, the base station side performs beam scanning.
  • the user equipment may perform beam scanning when receiving the DCI carrying the at least one common identifier and the beam scanning triggering instruction, that is, the UE side performs beam scanning according to the beam scanning triggering instruction.
  • the at least one public identifier is relatively independent of the beam scan triggering command, but is carried in the same DCI.
  • the at least one public identifier is combined with the beam scan triggering instruction to be the same instruction, and the instruction may indicate the at least one public identifier and may trigger a beam scan.
  • the DCI does not carry a beam scan triggering instruction, but the at least one public identifier may trigger a beam scan, that is, when the network device sends the DCI carrying the at least one public identifier.
  • the beam scanning can be performed, that is, the base station side performs beam scanning.
  • the user equipment may perform beam scanning, that is, the UE side performs beam scanning according to the at least one public identifier.
  • the at least one public identifier is used to trigger beam scanning in addition to the indication identifier, which is equivalent to the function of combining the beam scan triggering instruction in the at least one public identifier. Save DCI overhead.
  • the beam scanning performed by the network device and the beam scanning performed by the user equipment may be aperiodic beam scanning.
  • the aperiodic beam scan may correspond to the P-2 phase or the P-3 phase of the NR downlink beam management.
  • Nonperiodic can be semi-persistent or aperiodic.
  • the network device may send the DCI to the user equipment by using a Physical Downlink Control Channel (PDCCH).
  • the transmission process of the DCI in the PDCCH may include a Cyclic Redundancy Check (CRC), scrambling, channel coding, rate matching, interleaving, and the like.
  • CRC Cyclic Redundancy Check
  • Step S202 The user equipment listens to the first information that is sent by the network device and carries the at least one public identifier.
  • the first information sent by the network device may be received by the user equipment, or may not be received, because the factors affecting the transmission of the wireless channel are relatively large. Therefore, the user equipment needs to be monitored.
  • the user equipment when the user equipment receives the first information, when the first information is decoded or the CRC is processed, an error occurs, and the first information is not obtained, and naturally Obtaining the at least one public identifier, and determining that the user equipment does not listen to the at least one public identifier.
  • the user equipment obtains the first information, but does not obtain the at least one public identifier, and may determine that the user equipment does not listen to the at least one public identifier.
  • the user equipment does not listen to the first information, and then the at least one public identifier is not monitored.
  • the user equipment may determine that the user equipment is listening to the at least one public identifier if the first information is received and the first information and the at least one public identifier are available.
  • the user equipment performs beam scanning if the at least one public identifier is monitored. After the beam scanning is completed, a scan result can be obtained, and the user equipment can associate the receive beam in the scan result with the at least one public identifier.
  • Step S203 The user equipment sends, to the network device, second information carrying a receiving success identifier or a default identifier according to the monitoring result.
  • the user equipment sends the second information carrying the success indication of the reception to the network device, where the user equipment is listening to the at least one public identifier, the receiving success identifier indicating that the user equipment is listening to the at least A public identity.
  • the case where the user equipment does not listen to the at least one public identity may be determined according to the manner in which three possible implementations are listed in step S202.
  • the second information may be Uplink Control Information (UCI).
  • UCI Uplink Control Information
  • An indication bit of 1 bit may be added to the UCI to indicate the reception success identifier or the default identifier. For example, when the indication bit is “1”, the reception success identifier is indicated, and when the indication bit is “0” Represents the default identity.
  • the 1 bit occupied by the indicator bit can be an independent 1 bit, and can also be combined with other reported information.
  • the user equipment sends the second information carrying the receiving success identifier to the network device only if the at least one public identifier is monitored, in other cases, the The user equipment sends the second information carrying the default identifier to the network device by default.
  • the user equipment performs beam scanning in the case that the at least one public identifier is monitored, and the scan result can be obtained, and the receive beam in the scan result is The at least one public identity is associated.
  • the user equipment sends the scan result to the network device.
  • the user equipment may send the second information that carries the receiving success identifier to the network device, because the user equipment monitors the at least one public identifier, and the at least one public identifier may trigger a beam scan.
  • the scanning result the two can be sent simultaneously, or can be sent in sequential order. When transmitting at the same time, it can be sent independently at the same time, or it can be sent through the same information.
  • Step S204 The network device receives the second information that is sent by the user equipment and carries the receiving success identifier or the default identifier.
  • the network device receives the second information that is sent by the user equipment and that carries the receiving success identifier or the default identifier. If the second information received by the network device carries the receiving success identifier, the network device may determine that the user equipment receives the at least one public identifier, and does not need to send the at least one public identifier again. The first information. If the second information received by the network device carries the default identifier, the network device may determine that the user equipment does not receive the at least one public identifier, and needs to send the at least one public again.
  • step S201 and step S204 Receiving, by the first information, the second information that is sent by the user equipment and carrying the receiving success identifier or the default identifier, that is, for the network device, repeating step S201 and step S204 For the user equipment, step S202 and step S203 are repeated.
  • the network device may further receive the scan sent by the user equipment, where the network device determines that the user equipment receives the at least one public identifier, and the at least one public identifier may trigger beam scanning. As a result, a transmit beam in the scan result is associated with the at least one public identity.
  • the user equipment implements the network device and the user equipment by referring to the second information that carries the success identifier or the default identifier.
  • the handshake of at least one public identity can avoid the problem that at least one public identity is invalid and the beam management caused thereby, thereby improving the communication robustness of the beam access system.
  • FIG. 3 is a schematic diagram of communication of a beam management method according to Embodiment 2 of the present invention, which is introduced from the perspective of interaction between a network device and a user equipment.
  • FIG. 3 includes, but is not limited to, the following steps:
  • Step S301 The network device sends, to the user equipment, first information that carries the public identity of the beam pairing relationship;
  • the number of the beam pairing relationship public identifiers is at least one.
  • Step S302 The user equipment listens to the first information that is sent by the network device and carries the public identity of the beam pairing relationship;
  • step S301 and step S302 of the embodiment shown in FIG. 3 For the implementation process of step S301 and step S302 of the embodiment shown in FIG. 3, reference may be made to the detailed description of step S201 and step S202 of the embodiment shown in FIG. 2, and details are not described herein again. Moreover, the beam pairing relationship common identifier in the embodiment shown in FIG. 3 does not trigger beam scanning.
  • Step S303 The user equipment sends the second information carrying the receiving success identifier to the network device according to the monitoring result.
  • the user equipment sends the second information carrying the receiving success identifier to the network device if the beam pairing relationship public identifier is monitored.
  • Step S304 The network device receives the second information that is sent by the user equipment and carries the receiving success identifier.
  • the network device when receiving the second information that is sent by the user equipment and carrying the receiving success identifier, may determine that the user equipment receives the beam pairing relationship public identifier.
  • Step S305 The network device sends a beam scan triggering instruction to the user equipment.
  • the network device after receiving the second information that carries the receiving success identifier, the network device sends a beam scan triggering instruction to the user equipment.
  • the network device performs beam scanning, or specifically, performs aperiodic beam scanning, simultaneously with or after the beam scanning triggering instruction is sent.
  • Step S306 The user equipment receives the beam scan triggering command sent by the network device.
  • Step S307 The user equipment performs beam scanning according to the beam scan triggering instruction.
  • the user equipment performs beam scanning according to the beam scanning triggering instruction when receiving the beam scanning triggering instruction, and specifically may perform aperiodic beam scanning. After the beam scanning is completed, a scan result may be obtained, and the user equipment may associate the receive beam in the scan result with the beam pair relationship public identifier, and send the scan result to the network device.
  • the scanning result sent by the user equipment to the network device may include an association between a receiving beam and the beam pairing relationship public identifier.
  • the network device When receiving the scan result, the network device associates the transmit beam in the scan result with the beam pairing relationship public identifier, and further may establish a transmit beam, the beam pairing relationship public identifier, and the receive beam. The relationship between.
  • the network device triggers beam scanning only when it is determined that the user equipment monitors the beam pairing relationship public identity, and the network device or the user equipment does not blindly perform beam scanning, which can avoid network devices and The user equipment does not understand the inconsistency of the public identification of the beam pairing relationship, thereby avoiding the problem that the beam pairing relationship public identifier is invalid and the beam management caused thereby, and the communication robustness based on the beam access system can be further improved.
  • FIG. 4 is a schematic diagram of communication of a beam management method according to Embodiment 3 of the present invention, which is introduced from the perspective of interaction between a network device and a user equipment.
  • the method in FIG. 4 includes but is not limited to the following steps:
  • Step S401 The network device sends, to the user equipment, first information that carries a public identity of the beam pairing relationship;
  • Step S402 The user equipment listens to the first information that is sent by the network device and carries the public identifier of the beam pairing relationship;
  • steps S401 and S402 can be referred to the detailed description of the steps S201 and S202 of the embodiment shown in FIG. 2, and details are not described herein again.
  • Step S403 The network device sends a beam scan triggering instruction to the user equipment.
  • the network device performs beam scanning simultaneously with or after transmitting a beam scan triggering instruction to the user equipment.
  • the beam scan triggering instruction may trigger the network device to allocate an uplink resource to the user equipment.
  • Step S404 The user equipment receives the beam scan triggering command sent by the network device.
  • Step S405 The user equipment performs beam scanning according to the beam scan triggering instruction to obtain a scan result, and temporarily stores the scan result.
  • the user equipment performs beam scanning according to the beam scan triggering instruction to obtain a scan result, and temporarily stores the scan result.
  • Step S406 The network device sends an uplink resource to the user equipment.
  • the network device sends an uplink resource allocated to the user equipment to the user equipment.
  • the uplink resource may be used by the user equipment to send the scan result to the network device, or may be used by the user equipment to send, to the network device, second information that carries a success identifier or a default identifier.
  • Step S407 The user equipment sends the scan result to the network device.
  • the user equipment when receiving the uplink resource, the user equipment sends the scan result to the network device.
  • Step S408 The network device receives the scan result sent by the user equipment, and temporarily stores the scan result.
  • step S403-step S408 is performed before step S409, that is, in the process that the network device waits to receive the second information carrying the receiving success identifier or the default identifier, in the process, the network device Beam scanning may be completed and the user equipment may also complete beam scanning.
  • Step S401 may be performed before step S403, or may be performed simultaneously with step S403.
  • Step S409 The user equipment sends the second information carrying the default identifier to the network device according to the monitoring result.
  • the user equipment sends the second information carrying the default identifier to the user equipment if the beam pairing relationship public identifier is not monitored.
  • step S407 and step S409 can be executed simultaneously.
  • the user equipment may simultaneously send the scan result and the second information carrying the success indication of the reception to the network device, when the user equipment receives the uplink resource and listens to the public identity of the beam pairing relationship, and
  • the receiving beam in the scan result temporarily stored in step S405 is associated with the beam pairing relationship public identifier.
  • the network device associates the transmit beam in the scan result with the beam pairing relationship public identifier when receiving the scan result and the second information carrying the receive success identifier.
  • the user equipment may send, by using the uplink resource, the receiving success identifier or the default identifier to the user equipment.
  • the second information may be used to indicate whether the network device sends the uplink resource.
  • Step S410 The network device receives the second information that is sent by the user equipment and carries the default identifier.
  • Step S410 and step S408 can be performed simultaneously.
  • Step S411 The network device sends the first information that carries the beam pairing relationship public identifier to the user equipment again.
  • the network device needs to send the first information that carries the beam pairing relationship public identifier to the user equipment again, because the network device receives the second information and carries the default identifier.
  • Step S412 The user equipment again listens to the first information that is sent by the network device and carries the beam pairing relationship public identifier.
  • Step S413 The user equipment sends the second information carrying the receiving success identifier to the network device according to the monitoring result.
  • the user equipment when the public identity of the beam pairing relationship is monitored, sends the second information that carries the receiving success identifier to the user equipment, and the temporary information stored in step S405.
  • the receive beam in the scan result is associated with the beam pairing relationship public identity.
  • Step S414 The network device receives the second information that is sent by the user equipment and carries the receiving success identifier.
  • Step S415 The network device associates a transmit beam in the scan result with the beam pairing relationship public identifier
  • the network device associates the transmit beam in the scan result temporarily stored in step S408 with the beam pairing relationship public identifier.
  • the network device and the user equipment may complete the beam scanning, and the network device and the user equipment temporarily store the scan result, and the user equipment receives the beam.
  • the receiving beam in the scan result is associated with the beam pairing relationship public identity, and the network device pairs the transmitting beam and the beam in the scan result when receiving the second information carrying the receiving success indicator. Relationship public identity association.
  • FIG. 5 is a schematic diagram of communication of a beam management method according to Embodiment 4 of the present invention, which is introduced from the perspective of interaction between a network device and a user equipment.
  • the method in FIG. 5 includes but is not limited to the following steps:
  • Step S501 The network device sends, to the user equipment, first information that carries the beam pairing relationship common identifier and the beam scan triggering instruction.
  • the beam pairing relationship public identifier and the beam scan triggering instruction may be relatively independent, but are carried in the same first information.
  • the beam pairing relationship public identifier and the beam scan triggering instruction may be combined into the same instruction and carried in the first information.
  • the network device sends the beam pairing relationship common identifier and the beam scan triggering command at the same time, which can reduce the probability that the user equipment only receives the beam scan triggering instruction.
  • Step S502 The user equipment monitors the first information that is sent by the network device and carries the beam pairing relationship public identifier and the beam scan triggering instruction.
  • Step S503 The user equipment sends the second information carrying the reception success identifier and the scan result to the network device according to the monitoring result.
  • the user equipment sends the second information carrying the receiving success identifier to the network device if the beam pairing relationship public identifier is monitored.
  • the beam pairing relationship public identifier it can be inferred that the beam scanning triggering instruction is monitored, then the user equipment performs beam scanning, obtains a scanning result, and receives the receiving beam in the scanning result.
  • the beam pairing relationship is associated with a public identity.
  • the second information carrying the receiving success identifier and the scan result may be sent simultaneously or sequentially.
  • the packets may be sent simultaneously or by the same information.
  • the scan result may also be carried in the second information.
  • Step S504b The network device receives the second information that is sent by the user equipment and carries the receiving success identifier, and the scan result.
  • the network device when receiving the scan result, the network device associates a transmit beam in the scan result with the beam pairing relationship public identifier.
  • Step S503 The user equipment sends the second information carrying the default identifier to the network device according to the monitoring result.
  • the user equipment may infer that the beam scanning trigger instruction is not monitored if the beam pairing relationship public identifier is not monitored, and the user equipment does not perform beam scanning, only to the user equipment. Sending the second information carrying the default identifier.
  • Step S504b The network device receives the second information that is sent by the user equipment and carries the default identifier.
  • the network device when receiving the second information that is sent by the user equipment and carrying the default identifier, needs to send the public identifier carrying the carried beam pairing relationship to the user equipment again.
  • the beam scan triggers the first information of the instruction.
  • step S503a and the step S504a correspond to the case where the user equipment monitors the beam pairing relationship public identifier; and the step S503b and the step S504b correspond to the user equipment not listening to the beam pairing relationship shown. The status of the logo.
  • the network device simultaneously sends the beam pairing relationship common identifier and the beam scan triggering instruction, and receives the transmission beam and the beam in the scan result when receiving the receiving success identifier fed back by the user equipment. Pairing relationship public identity association.
  • FIG. 6 is a schematic diagram of communication of a beam management method according to Embodiment 5 of the present invention, which is introduced from the perspective of interaction between a network device and a user equipment.
  • the method in FIG. 6 includes but is not limited to the following steps:
  • Step S601 The network device sends, to the user equipment, first information that carries a beam pairing relationship public identifier and a beam scan triggering instruction.
  • the network device simultaneously carries the first information of the beam pairing relationship public identifier and the beam scan triggering instruction to the user equipment.
  • the beam pairing relationship public identifier and the beam scan triggering instruction may be relatively independent, but are carried in the same first information.
  • the beam pairing relationship public identifier and the beam scan triggering instruction may be combined into the same instruction and carried in the first information.
  • the network device sends the beam pairing relationship common identifier and the beam scan triggering command at the same time, which can reduce the probability that the user equipment only receives the beam scan triggering instruction.
  • Step S602 The user equipment monitors the first information that is sent by the network device and carries the beam pairing relationship public identifier and the beam scan triggering instruction.
  • Step S603 The user equipment sends a scan result to the network device according to the monitoring result.
  • the user equipment may infer that the beam scanning trigger instruction is intercepted when the beam pairing relationship public identifier is monitored, and then the user equipment performs beam scanning to obtain a scan result, and the scan is performed.
  • the receive beam in the result is associated with the beam pairing relationship public identity and the scan result is sent to the network device.
  • FIG. 5 transmits the second information carrying the reception success indicator and the scan result in this case
  • FIG. 6 only transmits the scan result in this case.
  • the user equipment may infer that the beam scanning trigger instruction is not monitored if the beam pairing relationship public identifier is not monitored, and the user equipment does not perform beam scanning.
  • Step S604 The network device receives the scan result sent by the user equipment.
  • the network device may determine that the user equipment receives the beam pairing relationship public identifier, and send a transmit beam and a result in the scan result.
  • the beam pairing relationship is associated with a public identity.
  • the network device does not receive the scan result within a preset time period, it may be determined that the user equipment does not receive the beam pairing relationship public identifier, and needs to send the carrying beam to the user equipment again.
  • the pairing relationship public identifier and the first information of the beam scan triggering instruction are set by the network device, which is not limited herein.
  • the user equipment sends a scan result to the network device if the beam pairing relationship public identifier is received, and does not feed back when the beam pairing relationship public identifier is not received.
  • the fourth embodiment shown in FIG. 5 and the fifth embodiment shown in FIG. 6 carry the beam pairing relationship common identifier and the beam scan trigger command in the same information. If the beam pairing relationship public identifier can trigger the beam scanning, the embodiment 4 shown in FIG. 5 and the embodiment 5 shown in FIG. 6 can only send the beam pairing relationship public identifier, and the UE receives the beam pairing relationship public identifier. And sending, to the network device, the second information carrying the receiving success identifier and the scan result, or sending the scan result to the network device.
  • FIG. 7 is a schematic diagram of a logical structure of a network device according to an embodiment of the present invention.
  • the network device 301 shown in FIG. 7 includes a transmitting unit 3011 and a receiving unit 3012.
  • the sending unit 3011 is configured to send, to the user equipment, first information that carries at least one public identifier, where the at least one public identifier indicates an association between a transmit beam of the network device and a receive beam of the user equipment.
  • the receiving unit 3012 is configured to receive, by the user equipment, second information that carries a receiving success identifier or a default identifier, where the receiving success identifier indicates that the user equipment listens to the at least one public identifier, where the default identifier indication The user equipment does not listen to the at least one public identity.
  • the sending unit 3011 is configured to implement step S201 in the embodiment shown in FIG. 2; the receiving unit 3012 is configured to implement step S204 in the embodiment shown in FIG. 2.
  • the network device 302 shown in FIG. 8 includes a processor 3021 and a transceiver 3022. It should be noted that the physical structure diagram shown in FIG. 8 does not constitute a limitation on the embodiment of the present invention. In practical applications, the network device may further include other components, such as a memory.
  • the processor 3021 may be a controller, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (ASIC). ), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out various exemplary logical blocks, modules and circuits described in connection with the disclosure of the embodiments of the invention.
  • Processor 3021 may also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the processor 3021 is configured to perform beam scanning, and is further configured to associate a transmit beam in a scan result with a beam pairing relationship public identifier.
  • the transceiver 3022 can be a communication module and a transceiver circuit for transmitting data, signaling, and the like between the network device and the user equipment.
  • the transceiver 3022 is configured to perform step S201 and step S204 in the embodiment shown in FIG. 2, and perform step S301, step S304, and step S305 in the embodiment shown in FIG. Step S401, step S403, step S406, step S408, step S410, step S411 and step S414 in the embodiment shown in FIG. 5, step S501, step S504a and step S504b in the embodiment shown in FIG. 5 are executed, and FIG. 6 is executed. Steps S601 and S604 in the embodiment are shown.
  • FIG. 9 is a schematic diagram of a logical structure of a user equipment according to an embodiment of the present invention.
  • the user equipment 401 shown in FIG. 9 includes a receiving unit 4011 and a transmitting unit 4012.
  • the receiving unit 4011 is configured to monitor, by the network device, first information that carries at least one public identifier, where the at least one public identifier indicates an association between a transmit beam of the network device and a receive beam of the user equipment;
  • the sending unit 4012 is configured to send, to the network device, second information that carries a receiving success identifier or a default identifier, where the receiving success identifier indicates that the user equipment is listening to the at least one public identifier, the default The identifier indicates that the user equipment does not listen to the at least one public identity.
  • the receiving unit 4011 is configured to implement step S202 in the embodiment shown in FIG. 2; the sending unit 4012 is configured to implement step S203 in the embodiment shown in FIG. 2.
  • the user equipment 402 shown in FIG. 10 includes the processor 4021 and the transceiver 4022. It should be noted that the physical structure diagram shown in FIG. 10 does not constitute a limitation on the embodiment of the present invention. In practical applications, the user equipment may further include other components, such as a memory.
  • the processor 4021 can be a controller, a CPU, a general purpose processor, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the disclosure of the embodiments of the invention.
  • the processor 4021 can also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the processor 4021 is configured to perform beam scanning, and is further configured to associate a receiving beam in a scan result with a beam pairing relationship public identifier.
  • the transceiver 4022 can be a communication module and a transceiver circuit for transmitting data, signaling, and the like between the user equipment and the network device.
  • the transceiver 4022 is configured to perform step S202 and step S203 in the embodiment shown in FIG. 2, and perform step S302, step S303, and step S306 in the embodiment shown in FIG.
  • step S402 step S404, step S407, step S409, step S412 and step S413 in the embodiment shown in FIG. 5, step S502, step S503a and step S503b in the embodiment shown in FIG. 5 are executed, and the embodiment shown in FIG. 6 is executed.
  • the embodiment of the present invention further provides a communication system, including the network device shown in FIG. 7 and the user equipment shown in FIG. 9, or the network device shown in FIG. 8 and the user equipment shown in FIG.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center by means of wire (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD (Digital Video Disk)), or a semiconductor medium (such as a Solid State Disk (SSD)). Wait.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD (Digital Video Disk)
  • a semiconductor medium such as a Solid State Disk (SSD)

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Abstract

Les modes de réalisation de la présente invention concernent un procédé de gestion de faisceau et un dispositif associé, le procédé comprenant les étapes suivantes : un dispositif de réseau envoie des premières informations qui portent au moins un identifiant public à un équipement utilisateur, le au moins un identifiant public indiquant une association entre un faisceau émis du dispositif de réseau et un faisceau reçu de l'équipement utilisateur ; l'équipement utilisateur surveille les premières informations qui sont envoyées par le dispositif de réseau et qui transportent le ou les identifiants publics ; l'équipement utilisateur envoie, au dispositif de réseau, des secondes informations qui portent un identifiant de réception réussie ou un identifiant par défaut selon le résultat de surveillance, l'identifiant de réception réussie indiquant que l'équipement utilisateur a surveillé au moins un identifiant public et l'identifiant par défaut indiquant que l'équipement utilisateur n'a pas surveillé le ou les identifiants publics ; et le dispositif de réseau reçoit les secondes informations qui sont envoyées par l'équipement utilisateur et qui transportent l'identifiant de réception réussie ou l'identifiant par défaut. Selon les modes de réalisation de la présente invention, un établissement de liaison entre les identifiants publics associés d'une station de base et d'un équipement utilisateur pour des faisceaux émis et reçus peut être mis en œuvre, ce qui permet d'améliorer la robustesse de communication d'un système d'accès basé sur un faisceau.
PCT/CN2018/085516 2017-05-05 2018-05-03 Procédé de gestion de faisceau et dispositif associé WO2018202104A1 (fr)

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