WO2024031314A1 - Procédé et appareil de détermination de faisceau de liaison terrestre, support et produit - Google Patents

Procédé et appareil de détermination de faisceau de liaison terrestre, support et produit Download PDF

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Publication number
WO2024031314A1
WO2024031314A1 PCT/CN2022/111081 CN2022111081W WO2024031314A1 WO 2024031314 A1 WO2024031314 A1 WO 2024031314A1 CN 2022111081 W CN2022111081 W CN 2022111081W WO 2024031314 A1 WO2024031314 A1 WO 2024031314A1
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Prior art keywords
backhaul link
channel
link
control
same
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PCT/CN2022/111081
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English (en)
Chinese (zh)
Inventor
刘敏
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/111081 priority Critical patent/WO2024031314A1/fr
Priority to CN202280003075.8A priority patent/CN115516895A/zh
Priority to PCT/CN2022/122910 priority patent/WO2024031806A1/fr
Priority to CN202280003878.3A priority patent/CN116097855A/zh
Publication of WO2024031314A1 publication Critical patent/WO2024031314A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering

Definitions

  • the present disclosure relates to the field of communications, and in particular to a beam determination method, device, medium and product for a backhaul link.
  • NCR Network Controlled Repeater
  • MT Mobile terminal
  • FWD Forwarding
  • the MT part can be used to receive control commands on the control link sent by the access network equipment.
  • the control commands are used to control the behavior of the FWD part, that is, the behavior on the backhaul link (backhaul link) and access link (access link). , such as beam indication direction, turning on and off of forwarding, etc.
  • both the backhaul link and the control link are links between the base station and the NCR, it is generally assumed that the backhaul link and the control link have similar channel characteristics and use the same spatial domain coding, that is, the beam.
  • the base station can indicate separately for each channel/signal or for multiple channels/signals. In either case, it is possible to configure multiple beams for the control link of the NCR. In this scenario, how to determine the beam on the backhaul link is an issue that needs to be solved urgently.
  • Embodiments of the present disclosure provide a beam determination method, device, medium and product for a backhaul link.
  • the technical solution is as follows:
  • a beam determination method for a backhaul link includes:
  • a beam determination device for a backhaul link which device includes:
  • the determining module is used to determine the beam of the backhaul link, which is the same as the beam of the first channel on the control link.
  • a chip is provided.
  • the chip includes programmable logic circuits and/or program instructions, and when the chip is run, it is used to implement the beam determination method of the backhaul link as in the above aspects.
  • a network control repeater includes:
  • transceiver coupled to the processor
  • the processor is configured to load and execute executable instructions to implement the information indicating methods in various aspects as above.
  • a terminal including:
  • transceiver coupled to the processor
  • the processor is configured to load and execute executable instructions to implement the information indicating methods in various aspects as above.
  • a computer-readable storage medium in which at least one instruction, at least a program, a code set or an instruction set is stored, at least one instruction, at least a program , the code set or the instruction set is loaded and executed by the processor to implement the beam determination method of the backhaul link as described above.
  • a computer program product (or computer program) including computer instructions stored in a computer-readable storage medium; a computer device;
  • the processor reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the beam determination method for the backhaul link in each of the above aspects.
  • the beam on the backhaul link is the same as the beam of the first channel on the control link, thereby accurately determining the transmit beam and/or receive beam used on the backhaul link .
  • Figure 1 is a schematic diagram of a communication system provided according to an exemplary embodiment
  • Figure 2 is a flow chart of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 3 is a schematic diagram of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 4 is a flow chart of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 5 is a schematic diagram of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 6 is a flow chart of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 7 is a schematic diagram of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 8 is a flow chart of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 9 is a schematic diagram of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 10 is a flow chart of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 11 is a schematic diagram of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 12 is a flow chart of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 13 is a schematic diagram of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 14 is a flow chart of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 15 is a schematic diagram of a beam determination method for a backhaul link provided according to an exemplary embodiment
  • Figure 16 is a block diagram of a beam determination device for a backhaul link provided according to an exemplary embodiment
  • Figure 17 is a schematic structural diagram of a network control relay or terminal provided according to an exemplary embodiment
  • Figure 18 is a schematic structural diagram of an access network device provided according to an exemplary embodiment.
  • first, second, third, etc. may be used in this application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other.
  • first information may also be called second information, and similarly, the second information may also be called first information.
  • word “if” as used herein may be interpreted as "when” or “when” or “in response to determining.”
  • TCI state Transmission Configuration Indicator state
  • QCL Quasi-Co-Location
  • QCL Type channel parameter QCL type configuration
  • QCL Type A Doppler Shift, Doppler Spread, Average Delay, Delay Spread.
  • QCL Type B Doppler Shift, Doppler Spread.
  • QCL Type C Average Delay, Doppler Shift.
  • QCL Type D Spatial Rx parameter.
  • QCL Type D refers to the indicated beam information, that is, the space reception parameters. Under the assumption of beam correspondence, the spatial transmission parameters and spatial reception parameters of the user equipment are the same.
  • the beams of the downlink control channel, downlink data channel, uplink control channel, and uplink data channel are indicated separately. Considering that in many cases, the beams of these channels are the same, such separate beam instructions cause a lot of signaling redundancy, so the concept of unified TCI state (unified TCI state) was introduced in Rel.17.
  • This unified TCI state can be effective for the control and data channels at the same time.
  • unified TCI is effective for both uplink and downlink; however, there are some special cases where the downlink receive beam cannot be considered to be equivalent to the uplink transmit beam, such as When considering Maximum Permissible Exposure (MPE) or network flexibility.
  • MPE Maximum Permissible Exposure
  • the concept of independent TCI state is introduced, and independent beam indication is used to indicate downlink transmission beams and uplink transmission beams to users respectively.
  • the TCI state in unified TCI is either effective for uplink or downlink. .
  • one or more TCI states need to be activated through the Media Access Control (Media Access Control, MAC) control element (Control Element, CE). Then the user-specific downlink control information (DCI) is used to indicate one of the activated TCI states to the user. If the MAC-CE activates only one TCI state, the activated TCI state is directly used to determine the transmission beam. At the same time, a Hybrid Automatic Repeat-reQuest acknowledgment (HARQ-ack) feedback mechanism is designed for the DCI signaling of the indicated beam. In Rel.17, only DCI format 1_1/1_2 with and without scheduling information is supported for beam indication.
  • HARQ-ack Hybrid Automatic Repeat-reQuest acknowledgment
  • Cyclic Redundancy Check CRC of DCI format 1_1/1_2 without scheduling information also needs to be performed using the Configured Scheduling Radio Network Temporary Identity (CS-RNTI). Scramble.
  • the reference point of the beam application time is the last symbol of the uplink resource for which the user equipment feeds back HARQ-ACK information.
  • the beam is directed for each channel/signal separately, that is, unified TCI is not supported, such as R 15/16 users.
  • unified TCI is not supported, such as R 15/16 users.
  • separate signaling is required, such as the Physical Uplink Control Channel (PUCCH).
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Share Channel
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • Method 2 when the beam indicates multiple channels/signals, that is, users who support unified TCI, such as R17 users, multiple channels can use the same beam to indicate downlink reception and uplink transmission such as PUCCH and PUSCH. , PDCCH, and PDSCH all use one beam.
  • Radio Resource Control RRC
  • Figure 1 shows a schematic diagram of a communication system provided by an exemplary embodiment of the present disclosure.
  • the communication system may include: an access network device 12, a terminal 14 and a network control relay 16.
  • the access network device 12 may be a base station, and a base station is a device that provides wireless communication functions for the terminal 14.
  • Base stations can include various forms of macro base stations, micro base stations, relay stations, access points, etc.
  • the names of equipment with base station functions may be different.
  • LTE Long Term Evolution
  • eNodeB evolved base station
  • NR 5G New Radio
  • gNodeB next generation base station
  • the description "base station” may change.
  • access network equipment 12 For convenience of description in the embodiments of the present disclosure, the above-mentioned devices that provide wireless communication functions for the terminal 14 are collectively referred to as access network equipment 12 .
  • the terminal 14 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment, mobile stations (Mobile Station, MS), Terminal device and so on.
  • mobile stations Mobile Station, MS
  • Terminal device and so on.
  • the devices mentioned above are collectively called terminals.
  • Network control repeaters 16 can increase system coverage in a low-cost manner.
  • the network control repeater consists of two parts, namely the MT part and the FWD part.
  • the access network equipment sends control commands to the network control relay through the control link, and the MT part receives them. After the MT part receives the control command, the network control repeater uses the control command to control the behavior of the FWD part, that is, the behavior on the backhaul link and access link, such as beam indication direction, turning on and off forwarding, etc. in:
  • the control link is the link between the access network equipment and the MT part.
  • the backhaul link is the link between the access network equipment and the FWD part.
  • the access link is the link between the FWD part and the terminal.
  • the forwarding mentioned in this disclosure refers to the forwarding related to the backhaul link.
  • the terminal sends an uplink signal to the FWD part through the access link, and the FWD part forwards the uplink signal to the access network device through the backhaul link;
  • the access network device sends a downlink signal to the FWD part through the backhaul link, and the FWD part forwards the uplink signal through the access link.
  • the link forwards the downlink signal to the terminal.
  • FIG. 2 shows a flowchart of a beam determination method for a backhaul link provided by an exemplary embodiment of the present disclosure. The method is performed by the network control repeater and includes:
  • Step 202 Determine the beam of the backhaul link, which is the same as the beam of the first channel on the control link.
  • the first channel includes at least one of the following:
  • the beam of the PDCCH is determined by the Control Resource Set (CORESET) that carries the PDCCH.
  • CORESET is designed to limit the PDCCH transmission of a terminal to a control subband, rather than within the entire system bandwidth.
  • the time-frequency region of the PDCCH is searched more flexibly for the purpose of transmission. It can be understood that when the beam of the PDCCH is mentioned in this article, it can be regarded as the beam of the CORESET. Therefore, this method can also be understood as determining the beam of the backhaul link, which is the same as the beam of the first CORESET on the control link.
  • the first CORESET carrying PDCCH includes at least one of the following:
  • SCI is the information sent by the access network equipment to the NCR to control the behavior of the NCR, such as beam forming information, switch information, power control information, etc. Based on this information, NCR can perform forwarding-related actions, such as adjusting the beams used for forwarding and turning on or off forwarding at specific times.
  • PDSCH refers to Network Control Repeater/Repeater/Mobile Terminal Dedicated Physical Downlink Shared Channel (NCR/repeater/MT-dedicated PDSCH);
  • PUCCH refers to Network Control Repeater/Repeater/Mobile Terminal Dedicated physical uplink control channel (NCR/repeater/MT-dedicated PUCCH).
  • MT-dedicated can also be expressed as terminal-dedicated (UE-dedicated), because the MT itself has some UE functions. However, the UE does not refer to the terminal equipment, but to the MT.
  • the access network device 12 sends the beam configuration information and/or indication information of the PDCCH (CORESET) to the network control relay 16 .
  • the network control relay 16 is configured/instructed that beam #2 corresponding to TCI-ID #2 serves as a receiving beam to receive the PDCCH. That is, the PDCCH on the control link corresponds to beam 2.
  • the network control repeater 16 uses beam 2 in the backhaul link to receive the downlink signal from the access network device 12, and then forwards the downlink signal to the terminal 14 through the access link; and/or, the network control repeater 16 Beam 2 is used in the backhaul link to forward the uplink signal to the access network device 12.
  • the method provided by this embodiment can determine that the beam on the backhaul link is the same as the beam of the first channel on the control link when there are multiple candidate beams on the control link, thereby accurately determining the backhaul The transmit beam and/or receive beam used on the link.
  • Figure 4 shows a flow chart of a beam determination method for a backhaul link provided by an exemplary embodiment of the present disclosure.
  • the method is performed by the network control repeater and includes:
  • Step 402 The network control relay determines the beam of the backhaul link, which is the same as the beam of the first downlink channel on the control link;
  • the network control relay determines a receive beam for the backhaul link that is the same as the receive beam for the first downlink channel on the control link;
  • the network control relay determines the transmit beam of the backhaul link to be the same as the receive beam of the first downlink channel on the control link.
  • the first downlink channel may be PDCCH or PDSCH.
  • the beam of the PDCCH is determined by the CORESET carrying the PDCCH. It can be understood that when the beam of the PDCCH is mentioned in this article, it can be regarded as the beam of the CORESET. Therefore, this method can also be understood as determining the beam of the backhaul link, which is the same as the beam of the first CORESET on the control link.
  • the network control relay determines the beam for the backhaul link, which is the same beam that controls the PDCCH on the link.
  • the first CORESET carrying PDCCH includes at least one of the following:
  • PDSCH refers to NCR/relay/MT-exclusive PDSCH.
  • the network control relay determines the beam for the backhaul link, which is the same beam that controls the PDSCH on the link.
  • Step 404 The network control repeater uses the receiving beam of the first downlink channel to forward the downlink signal from the access network device to the terminal;
  • the access network device sends a downlink signal to the NCR through the backhaul link, and the NCR forwards the downlink signal to the terminal through the access link.
  • the NCR determines that the downlink reception beam on the backhaul link and the reception beam used for PDCCH reception on the control link are the same. In other words, the NCR uses the receiving beam of the first CORESET to receive the downlink signal.
  • the NCR determines that the downlink reception beam on the backhaul link and the reception beam used for PDSCH reception on the control link are the same.
  • Step 406 The network control repeater forwards the uplink signal from the terminal to the access network device using the same transmit beam as the receive beam of the first downlink channel.
  • the terminal sends an uplink signal to the NCR through the access link, and the NCR forwards the uplink signal to the access network device on the backhaul link.
  • the terminal sends an uplink signal to the NCR through the access link, and the NCR forwards the uplink signal to the access network device on the backhaul link; or in other words, the NCR uses the receiving beam of the first CORESET to send The up signal.
  • the terminal When the first downlink channel is the PDSCH, the terminal sends an uplink signal to the NCR through the access link, and the NCR forwards the uplink signal to the access network device on the backhaul link.
  • the access network device 12 sends the beam configuration information and/or indication information of the MT-specific PDSCH to the network control relay 16 . It is assumed that the network control relay 16 is configured/instructed that the beam #2 corresponding to TCI-ID #2 serves as the receiving beam to receive the MT-exclusive PDSCH on the control link. That is, the MT-exclusive PDSCH on the control link corresponds to beam 2.
  • the network control repeater 16 uses beam 2 in the backhaul link to receive the downlink signal from the access network device 12, and then forwards the downlink signal to the terminal 14 through the access link; and/or, the network control repeater 16 Beam 2 is used in the backhaul link to forward the uplink signal to the access network device 12.
  • the access network device 12 sends the beam configuration information of CORESET#0 to the network control relay 16.
  • the beam configuration information is represented by, for example, TCI-ID#2 corresponding to beam #2. Therefore, The network control repeater uses beam 2 as the receive beam to receive the CORESET #0 on the control link.
  • the network control repeater 16 uses beam 2 in the backhaul link to receive the downlink signal from the access network device 12, and then forwards the downlink signal to the terminal 14 through the access link; and/or, the network control repeater 16 Beam 2 is used in the backhaul link to forward the uplink signal to the access network device 12.
  • the receiving beam and the transmitting beam used by the network control repeater are the same beam, both of which are the beams of the first downlink channel.
  • Figure 6 shows a flowchart of a beam determination method for a backhaul link provided by an exemplary embodiment of the present disclosure. The method is performed by the network control repeater and includes:
  • Step 602 The network control relay determines the beam of the backhaul link, which is the same as the beam of the first downlink channel and the first uplink channel on the control link;
  • the network control relay determines a receive beam for the backhaul link that is the same as the receive beam for the first downlink channel on the control link;
  • the network control relay determines a transmit beam for the backhaul link that is the same as the transmit beam for the first upstream channel on the control link.
  • the first downlink channel may be PDCCH or PDSCH.
  • the downlink receiving beam of the backhaul link is the same as the receiving beam of the first downlink channel.
  • the first uplink channel may be PUCCH.
  • the uplink transmission beam of the backhaul link is the same as the transmission beam of the first uplink channel.
  • Step 604 The network control repeater uses the receiving beam of the first downlink channel to forward the downlink signal from the access network device to the terminal;
  • the access network device sends a downlink signal to the NCR through the backhaul link, and the NCR forwards the downlink signal to the terminal through the access link.
  • the NCR determines that the downlink reception beam on the backhaul link and the reception beam used for PDCCH reception on the control link are the same.
  • the NCR determines that the downlink reception beam on the backhaul link and the reception beam used for PDSCH reception on the control link are the same.
  • Step 606 The network control repeater uses the transmit beam of the first uplink channel to forward the uplink signal from the terminal to the access network device.
  • the terminal sends an uplink signal to the NCR through the access link, and the NCR forwards the uplink signal to the access network device on the backhaul link.
  • the terminal When the first uplink channel is the PUCCH, the terminal sends an uplink signal to the NCR through the access link, and the NCR forwards the uplink signal to the access network device on the backhaul link.
  • the access network device 12 sends the beam configuration information of CORESET#0 to the network control relay 16.
  • the network control repeater 16 uses beam 2 in the backhaul link to receive the downlink signal from the access network device 12, and then forwards the downlink signal to the terminal 14 through the access link; and/or, the network control repeater 16 Beam 3 is used in the backhaul link to forward the uplink signal to the access network device 12.
  • the receiving beam and the transmitting beam used by the network control repeater are different beams, which are the receiving beam of the first downlink channel and the transmitting beam of the first uplink channel. Therefore, in When the channels are not reciprocal, both the downlink channel and the uplink channel can achieve better working results.
  • Figure 8 shows a flow chart of a beam determination method for a backhaul link provided by an exemplary embodiment of the present disclosure.
  • the method is performed by the network control repeater and includes:
  • the beam of the first channel is indicated by the unified TCI status
  • Step 802 The network control relay determines that the beam of the backhaul link is the beam indicated by the unified TCI status
  • the unified TCI state includes at least one of the following:
  • ⁇ Downlink independent TCI state (DLorJoint TCI state);
  • the unified TCI state includes a joint TCI state, and the network control repeater determines the receive beam of the backhaul link to be the same beam as indicated by the joint TCI state;
  • the unified TCI state includes a joint TCI state, and the network control repeater determines the transmit beam of the backhaul link to be the same beam as indicated by the joint TCI state;
  • the unified TCI state includes a downlink independent TCI state and an uplink independent TCI state
  • the network control repeater determines the receive beam of the backhaul link, which is the same as the beam indicated by the downlink independent TCI state
  • the unified TCI state includes a downlink independent TCI state and an uplink independent TCI state
  • the network control relay determines the transmit beam of the backhaul link, which is the same as the beam indicated by the uplink independent TCI state.
  • Step 804 The network control repeater uses the beam indicated by the unified TCI status to forward the downlink signal from the access network device to the terminal;
  • the access network device sends a downlink signal to the NCR through the backhaul link, and the NCR forwards the downlink signal to the terminal through the access link.
  • Step 806 The network control repeater uses the beam indicated by the unified TCI status to forward the uplink signal from the terminal to the access network device.
  • the terminal sends an uplink signal to the NCR through the access link, and the NCR forwards the uplink signal to the access network device on the backhaul link.
  • the access network device 12 sends the configuration and/or indication information of the unified TCI state to the network control relay 16.
  • the unified TCI state is used to indicate beam 2. That is, the unified TCI state on the control link corresponds to beam 2.
  • the network control repeater 16 uses beam 2 in the backhaul link to receive the downlink signal from the access network device 12, and then forwards the downlink signal to the terminal 14 through the access link; and/or, the network control repeater 16 Beam 2 is used in the backhaul link to forward the uplink signal to the access network device 12.
  • the method provided by this embodiment can determine that the beam on the backhaul link is the same as the beam indicated by the unified TCI status on the control link when there are multiple candidate beams on the control link, thereby accurately Determine the transmit beam and/or receive beam used on the backhaul link.
  • Figure 10 shows a flowchart of a beam determination method for a backhaul link provided by an exemplary embodiment of the present disclosure. The method is performed by the network control repeater and includes:
  • Step 1002 The network control relay determines that the beam of the backhaul link is the beam indicated by the joint TCI status
  • the network control relay determines the receive beam of the backhaul link to be the same beam as the joint TCI status indication
  • the network control relay determines the transmit beam of the backhaul link to be the same beam as the joint TCI status indication.
  • the access network device first uses Radio Resource Control (RRC) to configure the list "DLorJoint-TCI State" to the network control repeater.
  • RRC Radio Resource Control
  • the list "DLorJoint-TCI State” includes multiple TCI states.
  • the access network device then uses MAC CE and/or DCI to indicate a joint TCI state to the network control relay.
  • the joint TCI state is one of multiple TCI states corresponding to the list "DLorJoint-TCI State".
  • Step 1004 The network control repeater uses the beam combined with the TCI status indication to forward the downlink signal from the access network device to the terminal;
  • the access network device sends a downlink signal to the NCR through the backhaul link, and the NCR forwards the downlink signal to the terminal through the access link.
  • Step 1006 The network control repeater uses the beam combined with the TCI status indication to forward the uplink signal from the terminal to the access network device.
  • the terminal sends an uplink signal to the NCR through the access link, and the NCR forwards the uplink signal to the access network device on the backhaul link.
  • the access network device 12 sends the configuration and/or indication information of the joint TCI state to the network control relay 16 , and the joint TCI state is used to indicate beam 2. That is, the joint TCI state on the control link corresponds to beam 2.
  • the network control repeater 16 uses beam 2 in the backhaul link to receive the downlink signal from the access network device 12, and then forwards the downlink signal to the terminal 14 through the access link; and/or, the network control repeater 16 Beam 2 is used in the backhaul link to forward the uplink signal to the access network device 12.
  • the receiving beam and the transmitting beam used by the network control repeater are the same beam, and both are beams combined with TCI status indication, so the implementation complexity of the solution can be reduced.
  • the unified TCI state includes a downlink independent TCI state and an uplink independent TCI state:
  • Figure 12 shows a flowchart of a beam determination method for a backhaul link provided by an exemplary embodiment of the present disclosure. The method is performed by the network control repeater and includes:
  • the beam of the first channel is indicated by the unified TCI state, which includes the downlink independent TCI state and the uplink independent TCI state;
  • Step 1202 The network control relay determines that the beam of the backhaul link is the beam indicated by the downlink independent TCI state and the uplink independent TCI state;
  • the network control relay determines the receive beam of the backhaul link to be the same beam as the downlink independent TCI status indication
  • the network control relay determines the transmit beam for the backhaul link to be the same beam as the upstream independent TCI status indication.
  • Step 1204 The network control repeater uses the beam indicated by the downlink independent TCI status to forward the downlink signal from the access network device to the terminal;
  • the access network device sends a downlink signal to the NCR through the backhaul link, and the NCR forwards the downlink signal to the terminal through the access link.
  • Step 1206 The network control repeater uses the beam indicated by the uplink independent TCI status to forward the uplink signal from the terminal to the access network device.
  • the terminal sends an uplink signal to the NCR through the access link, and the NCR forwards the uplink signal to the access network device on the backhaul link.
  • the access network device first uses the RRC configuration list "DLorJoint-TCI State" to the network control repeater.
  • the list "DLorJoint-TCI State” includes multiple TCI states, and then the access network device uses the MAC CE and /or DCI indicates a downlink independent TCI state to the network control repeater, and the downlink independent TCI state is one of multiple TCI states corresponding to the list "DLorJoint-TCI State".
  • the access network device first uses the RRC configuration list "UL TCI state" to the network control repeater.
  • the list "UL TCI state” includes multiple TCI states, and then the access network device uses the MAC CE and/or
  • the DCI indicates an uplink independent TCI state to the network control repeater.
  • the uplink independent TCI state is one of multiple TCI states corresponding to the list "UL TCI state".
  • the access network device 12 sends the configuration and/or indication information of the downlink independent TCI state to the network control relay 16, and receives the configuration and/or indication information of the uplink independent TCI state.
  • Instruction information, the downlink independent TCI state on the control link corresponds to beam 2
  • the uplink independent TCI state corresponds to beam 3.
  • the network control repeater 16 uses beam 2 in the backhaul link to receive the downlink signal from the access network device 12, and then forwards the downlink signal to the terminal 14 through the access link; and/or, the network control repeater 16 Beam 3 is used in the backhaul link to forward the uplink signal to the access network device 12.
  • the receiving beam and the transmitting beam used by the network control repeater are different beams, which are the receiving beam for the downlink independent TCI status indication and the transmitting beam for the uplink independent TCI status indication. Therefore, When the channels are not reciprocal, both the downlink channel and the uplink channel can achieve better working results.
  • Figure 14 shows a flowchart of a beam determination method for a backhaul link provided by an exemplary embodiment of the present disclosure. The method is performed by the network control repeater and includes:
  • Step 1402 In the case where the beam of the first channel is instructed to be updated and the update has not yet been applied, the network control relay performs steps related to determining the beam of the backhaul link;
  • the network control repeater performs at least one of the following steps related to determining the beam of the backhaul link:
  • the network control relay receives the DCI without data scheduling at time t1, and the DCI without data scheduling is used to indicate the beam update of the first channel.
  • the network control relay applies the new beam after feeding back n symbols (t3) after the last symbol (t2) of the HARQ feedback for this DCI.
  • the specific value of n is indicated by the access network device.
  • the network control relay determines that the beam of the backhaul link is the default beam.
  • the default beam is predefined, or preconfigured, or configured or specified by the access network device.
  • access network equipment is configured or specified in advance through RRC signaling.
  • the network control relay keeps the beam of the backhaul link unchanged from the beam used before the above update is applied. For example, even if between the first time (t1) and the second time (t3), if the beam of the first channel undergoes other changes and is different from the beam used before the above update is applied, the network control repeater still maintains The beam for the backhaul link remains unchanged from the beam used before the above update was applied.
  • the network control relay determines that the beam of the backhaul link always follows the beam of the first channel. For example, even between the first time (t1) and the second time (t3), if the beam of the first channel undergoes other changes and is different from the beam used before the above update application, then the network control relay determines The beam of the backhaul link always follows the beam of the first channel.
  • Figure 16 shows a block diagram of a beam determination device for a backhaul link provided by an exemplary embodiment of the present disclosure.
  • the device includes:
  • the determining module 1610 is used to determine the beam of the backhaul link, which is the same as the beam of the first channel on the control link.
  • the first channel includes at least one of the following:
  • Physical uplink control channel PUCCH Physical uplink control channel
  • the beam of the PDCCH is determined by the CORESET carrying the PDCCH.
  • the CORESET carrying the PDCCH includes at least one of the following:
  • the first channel includes a first downlink channel
  • the installation also includes:
  • the first receiving module is used to determine the receiving beam of the backhaul link, which is the same as the receiving beam of the first downlink channel on the control link;
  • the first sending module is used to determine the sending beam of the backhaul link, which is the same as the receiving beam of the first downlink channel on the control link.
  • the first channel includes a first downlink channel and a first uplink channel
  • the installation also includes:
  • the second receiving module is used to determine the receiving beam of the backhaul link, which is the same as the receiving beam of the first downlink channel on the control link;
  • the second sending module is used to determine the sending beam of the backhaul link, which is the same as the sending beam of the first uplink channel on the control link.
  • the beam of the first channel is indicated by the TCI status
  • the beam of the backhaul link is the beam indicated by the unified TCI status.
  • the unified TCI state is a combined TCI state
  • the installation also includes:
  • the third receiving module is used to determine the receiving beam of the backhaul link, which is the same as the beam of the joint TCI status indication;
  • the third sending module is used to determine the sending beam of the backhaul link, which is the same as the beam of the joint TCI status indication.
  • the unified TCI state includes a downlink independent TCI state and an uplink independent TCI state;
  • the installation also includes:
  • the fourth receiving module is used to determine the receiving beam of the backhaul link, which is the same as the beam of the downlink independent TCI status indication;
  • the fourth sending module is used to determine the sending beam of the backhaul link, which is the same as the beam of the uplink independent TCI status indication.
  • the device further includes:
  • a fifth determination module configured to determine that the beam of the backhaul link is the default beam when the beam of the first channel is instructed to be updated and the update has not yet been applied;
  • a fifth maintenance module configured to keep the beam of the backhaul link unchanged from the beam used before the update is applied, when the beam of the first channel is instructed to be updated and the update has not yet been applied;
  • a sixth determination module configured to determine that the beam of the backhaul link always follows the beam of the first channel when the beam of the first channel is instructed to be updated and the update has not yet been applied.
  • the default beam is configured by the access network device.
  • the completion time of the beam update on the backhaul link and the completion time of the beam on the control link are the same time.
  • Figure 17 shows a schematic structural diagram of a network control relay or terminal 1700 provided by an exemplary embodiment of the present disclosure.
  • the network control relay or terminal includes: a processor 1701, a receiver 1702, a transmitter 1703, and a memory 1704 and bus 1705.
  • the processor 1701 includes one or more processing cores.
  • the processor 1701 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1702 and the transmitter 1703 can be implemented as a communication component, and the communication component can be a communication chip.
  • Memory 1704 is connected to processor 1701 through bus 1705.
  • the memory 1704 can be used to store at least one instruction, and the processor 1701 is used to execute the at least one instruction to implement each step in the above method embodiment.
  • memory 1704 may be implemented by any type of volatile or non-volatile storage device, or combination thereof, including but not limited to: magnetic or optical disks, electrically erasable programmable Read-only memory (EEPROM, Electrically Erasable Programmable Read Only Memory), Erasable Programmable Read-Only Memory (EPROM, Erasable Programmable Read Only Memory), Static Random-Access Memory (SRAM, Static Random-Access Memory), Read-Only Memory (ROM, Read Only Memory), magnetic memory, flash memory, programmable read-only memory (PROM, Programmable Read Only Memory).
  • EEPROM Electrically Erasable Programmable Read Only Memory
  • EPROM Erasable Programmable Read Only Memory
  • SRAM Static Random-Access Memory
  • ROM Read Only Memory
  • magnetic memory flash memory
  • PROM programmable read-only memory
  • non-transitory computer-readable storage medium including instructions, such as a memory including instructions, is also provided, and the above instructions can be executed by a processor of the terminal to complete the above-mentioned beam determination method for the backhaul link.
  • non-transitory computer-readable storage media can be ROM, random access memory (RAM, Random-Access Memory), compact disc read-only memory (CD-ROM, Compact Disc Read Only Memory), magnetic tape, floppy disk and optical data Storage devices, etc.
  • Figure 18 is a block diagram of an access network device 1800 according to an exemplary embodiment.
  • the access network device 1800 may be a base station.
  • the access network device 1800 may include: a processor 1801, a receiver 1802, a transmitter 1803, and a memory 1804.
  • the receiver 1802, the transmitter 1803 and the memory 1804 are respectively connected to the processor 1801 through a bus.
  • the processor 1801 includes one or more processing cores, and the processor 1801 executes the beam determination method for the backhaul link provided by the embodiment of the present disclosure by running software programs and modules.
  • Memory 1804 may be used to store software programs and modules. Specifically, the memory 1804 can store the operating system 18041 and at least one application module 18042 required for the function.
  • the receiver 1802 is used to receive communication data sent by other devices, and the transmitter 1803 is used to send communication data to other devices.
  • An exemplary embodiment of the present disclosure also provides a computer-readable storage medium.
  • the computer-readable storage medium stores at least one instruction, at least a program, a code set or an instruction set. At least one instruction, at least a program, a code set. Or the instruction set is loaded and executed by the processor to implement the beam determination method for the backhaul link provided by each of the above method embodiments.
  • An exemplary embodiment of the present disclosure also provides a computer program product.
  • the computer program product includes computer instructions.
  • the computer instructions are stored in a computer-readable storage medium.
  • the processor of the computer device reads the computer instructions from the computer-readable storage medium.
  • the processor executes computer instructions, causing the computer device to execute the beam determination method for the backhaul link as provided in each of the above method embodiments.

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

Abstract

La présente divulgation concerne le domaine des communications. Sont divulgués un procédé et un appareil pour déterminer un faisceau d'une liaison terrestre, un support et un produit. Le procédé est exécuté par un répéteur commandé par réseau. Le procédé consiste à : déterminer qu'un faisceau d'une liaison terrestre est le même qu'un faisceau d'un premier canal sur une liaison de commande (202). Selon le procédé, le faisceau de la liaison terrestre peut être déterminé avec précision dans le cas où il existe une pluralité de faisceaux candidats sur la liaison de commande.
PCT/CN2022/111081 2022-08-09 2022-08-09 Procédé et appareil de détermination de faisceau de liaison terrestre, support et produit WO2024031314A1 (fr)

Priority Applications (4)

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PCT/CN2022/111081 WO2024031314A1 (fr) 2022-08-09 2022-08-09 Procédé et appareil de détermination de faisceau de liaison terrestre, support et produit
CN202280003075.8A CN115516895A (zh) 2022-08-09 2022-08-09 回程链路的波束确定方法、装置、介质及产品
PCT/CN2022/122910 WO2024031806A1 (fr) 2022-08-09 2022-09-29 Procédé et dispositif de détermination de faisceau pour liaison terrestre, support et produit
CN202280003878.3A CN116097855A (zh) 2022-08-09 2022-09-29 回程链路的波束确定方法、装置、介质及产品

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PCT/CN2022/111081 WO2024031314A1 (fr) 2022-08-09 2022-08-09 Procédé et appareil de détermination de faisceau de liaison terrestre, support et produit

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WO2024174192A1 (fr) * 2023-02-23 2024-08-29 富士通株式会社 Procédé de commande de transfert, procédé d'envoi d'informations, répéteur et dispositif de réseau
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