WO2021136164A1 - 信息传输方法、终端及网络设备 - Google Patents

信息传输方法、终端及网络设备 Download PDF

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Publication number
WO2021136164A1
WO2021136164A1 PCT/CN2020/140110 CN2020140110W WO2021136164A1 WO 2021136164 A1 WO2021136164 A1 WO 2021136164A1 CN 2020140110 W CN2020140110 W CN 2020140110W WO 2021136164 A1 WO2021136164 A1 WO 2021136164A1
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Prior art keywords
relay
terminal
network device
association relationship
air interface
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PCT/CN2020/140110
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English (en)
French (fr)
Inventor
赵亚利
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大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to US17/788,178 priority Critical patent/US20230026499A1/en
Priority to EP20911166.5A priority patent/EP4087312A4/en
Publication of WO2021136164A1 publication Critical patent/WO2021136164A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/20Selecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/08Load balancing or load distribution
    • H04W28/09Management thereof
    • H04W28/0958Management thereof based on metrics or performance parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0205Traffic management, e.g. flow control or congestion control at the air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/08Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/24Multipath
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/04Error control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092Error control systems characterised by the topology of the transmission link
    • H04L2001/0097Relays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/12Shortest path evaluation
    • H04L45/121Shortest path evaluation by minimising delays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • H04W92/10Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to an information transmission method, terminal and network equipment.
  • UE User Equipment
  • the same service of the UE can only be transmitted through one relay, and the link between the UE and the relay is single-carrier, so the UE cannot use the packet data aggregation protocol (Packet Data Aggregation Protocol) when accessing the network through the relay.
  • Packet Data Aggregation Protocol Packet Data Aggregation Protocol
  • PDCP Data Convergence Protocol
  • the purpose of the present disclosure is to provide an information transmission method, terminal, and network equipment to solve the problem of low reliability of data transmission when the terminal accesses the network through a relay in the related art.
  • an information transmission method which is applied to a terminal, and includes:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the N relay nodes are relay nodes of the same type, and belong to the same serving cell or serving master node.
  • the method before the repeated data is sent to the network device, the method further includes:
  • a first association relationship between T relay links where the first association relationship is used to indicate that the target bearer transmits the same data through the T relay links, and the second association relationship is used to indicate The target bearer transmits the same data through the air interface and the T relay links;
  • Repeated processing is performed on the to-be-transmitted data packets carried by the target to obtain repeated data.
  • the selection of T relay nodes includes:
  • T relay nodes are selected.
  • the simultaneous selection of T relay nodes in a relay selection process includes:
  • the network According to the first reference signal received power RSRP threshold configured by the network, select T relay nodes from the relay nodes whose RSRP is greater than the first RSRP threshold in the order of RSRP from high to low; or,
  • the establishment of the first association relationship between the T relay links formed by the T relay nodes, or the establishment of the air interface between the terminal and the network device and the establishment of the air interface between the T relay nodes includes:
  • the first association relationship between the T relay links formed by the T relay nodes is established, or the air interface between the terminal and the network device is established and the The second association relationship between T relay links formed by T relay nodes; or,
  • the first association relationship between the T relay links formed by the T relay nodes is established, or the air interface between the terminal and the network device is established and the A second association relationship between T relay links formed by T relay nodes.
  • the first association relationship between the T relay links formed by the T relay nodes is established through the control plane signaling process, or the air interface between the terminal and the network device is established
  • the second association relationship between the T relay links formed by the T relay nodes includes:
  • Source identification Source L2 ID Source identification Source L2 ID
  • the direct communication interface radio bearer identification SLRB ID The direct communication interface radio bearer identification SLRB ID.
  • the terminal uses the link with the same UuRB ID and UE ID as the downlink repeated transmission path.
  • the first association relationship between the T relay links formed by the T relay nodes is established through the user plane signaling process, or the air interface between the terminal and the network device is established
  • the second association relationship between the T relay links formed by the T relay nodes includes:
  • the first association relationship between the T relay links formed by the T relay nodes is established through the terminal identifier UE ID and the bearer identifier RB ID carried in the user plane data header, or the terminal is established with The second association relationship between the air interface between the network devices and the T relay links formed by the T relay nodes.
  • the RB ID is Uu RB ID.
  • the method further includes:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the method further includes:
  • embodiments of the present disclosure also provide an information transmission method, which is applied to network equipment, including:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the method before receiving the repeated data sent by the terminal, the method further includes:
  • the network device After the network device establishes a relay connection with the terminal, establish a first association relationship between a plurality of relay links formed by the relay connection, or establish a relationship between the network device and the terminal A second association relationship between the air interface of, and the multiple relay links formed by the relay connection, where the first association relationship is used to indicate that the target bearer transmits the same data through the multiple relay links, The second association relationship is used to indicate that the target bearer transmits the same data through the air interface and the multiple relay links.
  • the second association relationship between multiple relay links includes:
  • the first association relationship between the multiple relay links formed by the relay connection is established, or the air interface between the network device and the terminal and the relay connection are established.
  • the second association relationship between the formed multiple relay links is established, or;
  • the first association relationship between the multiple relay links formed by the relay connection is established, or the air interface between the network device and the terminal and the relay connection are established.
  • the second association relationship between the formed multiple relay links is established.
  • the first association relationship between the multiple relay links formed by the relay connection is established through the control plane signaling process, or the air interface between the network device and the terminal is established, and
  • the second association relationship between the multiple relay links formed by the relay connection includes:
  • Source identification Source L2 ID Source identification Source L2 ID
  • the direct communication interface radio bearer identification SLRB ID The direct communication interface radio bearer identification SLRB ID.
  • the network device uses a link with the same SLRB ID and UE ID as the uplink repeated transmission path.
  • a first association relationship between multiple relay links formed by a relay connection is established, or an air interface between the network device and the terminal is established, and
  • the second association relationship between the multiple relay links formed by the relay connection includes:
  • the first association relationship between the multiple relay links formed by the relay connection is established through the terminal identification UE ID and the bearer identification RB ID carried in the user plane data header, or the network device and the The second association relationship between the air interface between the terminals and the multiple relay links formed by the relay connection.
  • the RB ID is SLRB ID.
  • the method further includes:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • an embodiment of the present disclosure further provides a terminal, including: a transceiver, a memory, a processor, and a program stored on the memory and running on the processor;
  • the transceiver is used for:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the N relay nodes are relay nodes of the same type, and belong to the same serving cell or serving master node.
  • the processor is used to read the program stored in the memory and execute the following process:
  • Repeated processing is performed on the to-be-transmitted data packets carried by the target to obtain repeated data.
  • processor is also used for:
  • T relay nodes are selected.
  • processor is also used for:
  • the network According to the first reference signal received power RSRP threshold configured by the network, select T relay nodes from the relay nodes whose RSRP is greater than the first RSRP threshold in the order of RSRP from high to low; or
  • processor is also used for:
  • the first association relationship between the T relay links formed by the T relay nodes is established, or the air interface between the terminal and the network device is established and the The second association relationship between T relay links formed by T relay nodes; or,
  • the first association relationship between the T relay links formed by the T relay nodes is established, or the air interface between the terminal and the network device is established and the A second association relationship between T relay links formed by T relay nodes.
  • processor is also used for:
  • Source identification Source L2 ID Source identification Source L2 ID
  • the direct communication interface radio bearer identification SLRB ID The direct communication interface radio bearer identification SLRB ID.
  • processor is also used for:
  • the terminal uses the link with the same Uu RB ID and UE ID as the downlink repeated transmission path.
  • processor is also used for:
  • the first association relationship between the T relay links formed by the T relay nodes is established through the terminal identifier UE ID and the bearer identifier RB ID carried in the user plane data header, or the terminal is established with The second association relationship between the air interface between the network devices and the T relay links formed by the T relay nodes.
  • the RB ID is Uu RB ID.
  • the transceiver is also used for:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • processor is also used for:
  • an embodiment of the present disclosure further provides a terminal, including:
  • the first sending module is used to send repeated data to the network device in one of the following ways:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, and the computer program implements the steps of the information transmission method as described above when the computer program is executed by a processor.
  • the embodiments of the present disclosure also provide a network device, including: a transceiver, a memory, a processor, and a program stored in the memory and running on the processor, and the transceiver is used for:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the processor is used to read the program in the memory and execute the following process:
  • the network device After the network device establishes a relay connection with the terminal, establish a first association relationship between a plurality of relay links formed by the relay connection, or establish a relationship between the network device and the terminal A second association relationship between the air interface of, and the multiple relay links formed by the relay connection, where the first association relationship is used to indicate that the target bearer transmits the same data through the multiple relay links, The second association relationship is used to indicate that the target bearer transmits the same data through the air interface and the multiple relay links.
  • processor is also used for:
  • the first association relationship between the multiple relay links formed by the relay connection is established, or the air interface between the network device and the terminal and the relay connection are established.
  • the second association relationship between the formed multiple relay links is established, or;
  • the first association relationship between the multiple relay links formed by the relay connection is established, or the air interface between the network device and the terminal and the relay connection are established.
  • the second association relationship between the formed multiple relay links is established.
  • processor is also used for:
  • Source identification Source L2 ID Source identification Source L2 ID
  • the direct communication interface radio bearer identification SLRB ID The direct communication interface radio bearer identification SLRB ID.
  • processor is also used for:
  • the network device uses the link with the same SLRB ID and UE ID as the uplink repeated transmission path.
  • processor is also used for:
  • the first association relationship between the multiple relay links formed by the relay connection is established through the terminal identification UE ID and the bearer identification RB ID carried in the user plane data header, or the network device and the The second association relationship between the air interface between the terminals and the multiple relay links formed by the relay connection.
  • the RB ID is SLRB ID.
  • processor is also used for:
  • the transceiver is also used for:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • embodiments of the present disclosure also provide a network device, including:
  • the first receiving module is configured to receive repeated data sent by the terminal in one of the following ways:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the information transmission method as described above are realized.
  • the repeated data is sent to the network device through N relay nodes, or through the air interface between the terminal and the network device and M relay nodes, where N ⁇ 2, M ⁇ 1, N and M are both positive integers.
  • N relay nodes or through the air interface between the terminal and the network device and M relay nodes, where N ⁇ 2, M ⁇ 1, N and M are both positive integers.
  • FIG. 1 is one of the schematic flowcharts of the information transmission method provided by the embodiments of the disclosure.
  • FIG 2 is the second schematic diagram of the flow of the information transmission method provided by the embodiments of the disclosure.
  • FIG. 3 is the third schematic diagram of the flow of the information transmission method provided by the embodiments of the disclosure.
  • FIG. 5 is a structural block diagram of a terminal according to an embodiment of the disclosure.
  • FIG. 6 is a schematic diagram of modules of a terminal according to an embodiment of the disclosure.
  • FIG. 7 is a structural block diagram of a network device according to an embodiment of the disclosure.
  • FIG. 8 is a schematic diagram of modules of a network device according to an embodiment of the disclosure.
  • FIG. 1 it is a schematic flowchart of an information transmission method provided by an embodiment of the present disclosure, which is applied to a terminal and includes:
  • Step 101 Send the repeated data to the network device in one of the following ways:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the N relay nodes are relay nodes of the same type, and belong to the same serving cell or serving master node.
  • the air interface between the terminal and the network device may be a Uu interface.
  • the relay node in the above steps may be a relay terminal relay UE.
  • repeated data is sent to the network device through N relay nodes, or through the air interface between the terminal and the network device and M relay nodes, where N ⁇ 2, M ⁇ 1, N and M are both positive integers.
  • N the transmission delay of the terminal can be reduced and the reliability of data transmission of the terminal can be improved.
  • the method of the present disclosure may further include:
  • the target bearer is a direct communication interface radio bearer (Sidelink Radio Bearer, SLRB) or a radio bearer corresponding to the air interface (such as a Uu bearer).
  • SLRB Systemlink Radio Bearer
  • Uu bearer a radio bearer corresponding to the air interface
  • this step includes the following two relay selection methods, specifically:
  • Method 1 Select T relay nodes at the same time in a relay selection process
  • the network According to the first reference signal received power RSRP threshold configured by the network, select T relay nodes from the relay nodes whose RSRP is greater than the first RSRP threshold in the order of RSRP from high to low; or,
  • each relay selection can be to select one relay node or multiple relay nodes, and select a total of T relay nodes.
  • this step may specifically include:
  • the first association relationship between the T relay links formed by the T relay nodes is established, or the air interface between the terminal and the network device is established and the A second association relationship between T relay links formed by T relay nodes.
  • the first association relationship between the T relay links formed by the T relay nodes is established through a control plane signaling process, or the air interface between the terminal and the network device is established
  • the second association relationship between the T relay links formed by the T relay nodes may specifically include:
  • Source identification Source L2 ID Source identification Source L2 ID
  • the direct communication interface radio bearer identification SLRB ID The direct communication interface radio bearer identification SLRB ID.
  • the terminal uses the link with the same Uu RB ID and UE ID as the downlink repeated transmission path.
  • this step may specifically include:
  • the first association relationship between the T relay links formed by the T relay nodes is established, or the air interface between the terminal and the network device is established and the A second association relationship between T relay links formed by T relay nodes.
  • this step may specifically include:
  • the first association relationship between the T relay links formed by the T relay nodes is established through the terminal identifier UE ID and the bearer identifier RB ID carried in the user plane data header, or the terminal is established with The second association relationship between the air interface between the network devices and the T relay links formed by the T relay nodes.
  • the RB ID is the air interface radio bearer identifier Uu RB ID.
  • the purpose of establishing the association relationship between the above multiple paths is to enable the network equipment and/or the terminal to recognize different What the path receives is the same data carried by the same UE.
  • Repeated processing is performed on the to-be-transmitted data packets carried by the target to obtain repeated data.
  • the target bearer is SLRB
  • the repeated data is sent to the network device through N relay nodes.
  • the target bearer is a Uu bearer
  • the repeated data is sent to the network device through the air interface between the terminal and the network device and M relay nodes.
  • the method of the present disclosure may further include:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the method of the present disclosure may further include:
  • the same bearer data using the same Uu RB ID and UE ID received from different paths can be identified.
  • the UE ID is the identification of the terminal in the embodiment of the disclosure.
  • one PDCP entity carried by the target corresponds to multiple RLC entities, where the source identifier, target identifier, and logical channel identifier of each RLC entity are all Are not the same.
  • one PDCP entity carried by the target corresponds to multiple RLC entities, wherein the air interface corresponds to The RLC entity is identified by the logical channel identifier, and the RLC entity corresponding to the relay node is identified by the source identifier, target identifier, and logical channel identifier; when there are multiple relay nodes at the same time, the RLC entity corresponding to different relay nodes
  • the source ID, target ID, and logical channel ID are all different.
  • the repeated data is sent to the network device through N relay nodes, or through the air interface between the terminal and the network device and M relay nodes, where N ⁇ 2, M ⁇ 1, N and M are both positive integers.
  • N the transmission delay of the terminal can be reduced and the reliability of data transmission of the terminal can be improved.
  • FIG. 2 it is a schematic flowchart of an information transmission method provided by an embodiment of the present disclosure, which is applied to a network device and includes:
  • Step 201 Receive repeated data sent by the terminal in one of the following ways:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • this step corresponds to step 101 of the method in the foregoing terminal-side embodiment.
  • the N relay nodes are relay nodes of the same type, and belong to the same serving cell or serving master node.
  • the air interface between the terminal and the network device may be a Uu interface.
  • the relay node in the above steps may be a relay terminal relay UE.
  • the repeated data sent by the terminal is received through N relay nodes, or through the air interface between the terminal and the network device and M relay nodes, where N ⁇ 2, M ⁇ 1. Both N and M are positive integers. In this way, repeated data transmission can be realized, the transmission delay of the terminal can be reduced, and the reliability of data transmission of the terminal can be improved.
  • the method of the present disclosure may further include:
  • the network device After the network device establishes a relay connection with the terminal, establish a first association relationship between a plurality of relay links formed by the relay connection, or establish a relationship between the network device and the terminal A second association relationship between the air interface of, and the multiple relay links formed by the relay connection, where the first association relationship is used to indicate that the target bearer transmits the same data through the multiple relay links, The second association relationship is used to indicate that the target bearer transmits the same data through the air interface and the multiple relay links.
  • this step may specifically include:
  • the first association relationship between the multiple relay links formed by the relay connection is established, or the air interface between the network device and the terminal and the relay connection are established.
  • the second association relationship between the formed multiple relay links is established.
  • a first association relationship between multiple relay links formed by relay connections is established, or an air interface between the network device and the terminal is established, and
  • the second association relationship between the multiple relay links formed by the relay connection may specifically include:
  • Source identification Source L2 ID Source identification Source L2 ID
  • the direct communication interface radio bearer identification SLRB ID The direct communication interface radio bearer identification SLRB ID.
  • the network device uses the link with the same SLRB ID and UE ID as the uplink repeated transmission path.
  • this step may specifically include:
  • the first association relationship between the multiple relay links formed by the relay connection is established, or the air interface between the network device and the terminal and the relay connection are established.
  • the second association relationship between the formed multiple relay links is established.
  • this step may specifically include:
  • the first association relationship between the multiple relay links formed by the relay connection is established through the terminal identification UE ID and the bearer identification RB ID carried in the user plane data header, or the network device and the The second association relationship between the air interface between the terminals and the multiple relay links formed by the relay connection.
  • the RB ID is SLRB ID.
  • the purpose of establishing the association relationship between the above multiple paths is to enable the network equipment and/or the terminal to recognize different What the path receives is the same data carried by the same UE.
  • the method of the present disclosure may further include:
  • the network device can identify the same bearer data using the same Uu RB ID and UE ID received by different paths through the pre-established association relationship between the multiple paths.
  • the method of the present disclosure further includes:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the information transmission method provided by the embodiments of the present disclosure receives repeated data sent by the terminal through N relay nodes, or through the air interface between the terminal and the network device and M relay nodes, where N ⁇ 2, M ⁇ 1, N and M are both positive integers. In this way, repeated data transmission can be realized, the transmission delay of the terminal can be reduced, and the reliability of data transmission of the terminal can be improved.
  • Example 1 Terminal repeats transmission through multiple relays
  • the terminal UE1 in this example is a UE outside the network coverage.
  • step S1 UE1 performs relay selection
  • the UE1 when the preset condition is met, the UE1 performs relay selection, that is, accesses the network through the relay node.
  • the preset condition may be: the channel quality of the Uu interface is lower than the preset threshold. That is, when the channel quality of the Uu interface is lower than the preset threshold, the relay selection is triggered.
  • the UE1 may select the relay node with the highest RSRP from the relay nodes meeting the RSRP threshold according to the RSRP threshold configured by the network.
  • Step S2 Relay connection establishment
  • step S2a UE1 establishes a connection with the network through the selected relay 1.
  • relay 1 is an L2 relay, so UE1 is visible to the base station.
  • Step S3 Repeat the transmission configuration or activate the trigger relay selection
  • the terminal judges whether it is necessary to configure/activate repeated transmission for a certain SLRB. If it judges that it needs to configure/activate repeated transmission, it triggers relay selection, and the number of selected relays is equal to the number of RLC entities corresponding to the SLRB.
  • Step S4 Relay connection establishment
  • steps S4a and S4b are included.
  • the UE1 establishes a relay connection through the relay 2 selected in the above step S3.
  • Step 5 Establish the association relationship of multiple relay links
  • steps S5a and S5b are included.
  • the specific association relationship can be established through the control plane signaling process or the user plane process.
  • UE1 For the downlink: when UE1 establishes a bearer through the relay and the network, for each relay link, UE1 records the Uu RB ID of the bearer + the Uu LCID corresponding to the relay link + Relay UE ID + UE ID + Source L2 ID/destination L2 ID/LCID+SLRB ID. After that, UE1 can associate multiple relay links carrying the same UE ID + Uu RB ID.
  • step S5a The above process corresponds to step S5a.
  • the purpose of association is to instruct the SLRB to transmit the same data through the multiple relay links.
  • the network equipment For uplink, when UE1 establishes a bearer through the relay and the network, for each relay link, the network equipment records the Uu RB ID of the bearer + the Uu LCID corresponding to the relay link + Relay UE ID + UE ID + Source L2 ID/destination L2 ID/LCID+SLRB ID. After that, the network device can associate multiple relay links that carry the same UE ID+SLRB ID.
  • step S5b The above process corresponds to step S5b.
  • User plane data header can carry UE ID+Uu RB ID.
  • the user plane data header can carry UE ID+SLRB ID.
  • Step S6 Data packet duplication
  • Perform data packet repetition for the bearer of the configuration/activation repeated transmission for example, perform data packet repetition at the PDCP layer.
  • the repeated data packets are delivered to multiple different RLC entities corresponding to PDCP for carrying repeated data.
  • one PDCP entity of the bearer may correspond to multiple RLC entities, and the source ID/destination ID/LCID of different RLC entities may be completely different.
  • one PDCP entity of the bearer can correspond to multiple RLC entities at the same time.
  • the RLC entity corresponding to Uu is identified by LCID
  • the RLC entity corresponding to the relay is identified by source ID/destination ID/ LCID is the identification. If there are multiple relays at the same time, the source ID/destination ID/LCID of the RLC entities of different relays can be completely different.
  • Step S7 Repeated data transmission
  • this step is mainly to send repeated data via relay.
  • the repeated data transmission here includes: uplink transmission of repeated data and downlink transmission of repeated data.
  • the UE1 For the uplink, after the UE1 sends the repeated data to the network device (such as the base station) through different paths, it also includes: the network device needs to perform repeated detection and reordering of the same data carried by the same UE received from multiple paths.
  • the network device such as the base station
  • the network measurement equipment After the network measurement equipment sends repeated data to UE1 through different paths, it also includes: UE1 needs to perform repeated detection and reordering of the same data carried by the same UE received from multiple paths.
  • Example 2 The terminal performs repeated transmission through the air interface Uu interface and at least one relay
  • the terminal UE1 in this example is a UE outside the network coverage.
  • step S11 retransmit the transmission configuration or activate the trigger relay selection
  • the terminal first establishes a Uu bearer, and then the terminal determines whether it needs to configure/activate repeated transmission for the Uu bearer. If it determines that it needs to configure/activate repeated transmission, it triggers relay selection, and the number of selected relays is equal to the Uu bearer corresponding The number of RLC entities is reduced by 1.
  • Step S12 UE1 performs relay selection
  • the UE1 may select multiple relay nodes from the relay nodes meeting the RSRP threshold in the order of RSRP from high to low according to the RSRP threshold configured by the network.
  • Step S13 the relay connection is established
  • step S13a UE1 establishes a connection with the network (ie, base station) through the selected relay 1.
  • the network ie, base station
  • relay 1 is an L2 relay, so UE1 is visible to the base station.
  • Step S14 Establish the association relationship between the Uu interface and multiple relay links
  • steps S14a and S14b are included.
  • the specific association relationship can be established through the control plane signaling process or the user plane process.
  • UE1 can associate multiple paths carrying the same UE ID+Uu RB ID.
  • step S14a The above process corresponds to step S14a.
  • the purpose of association is to indicate that the Uu bearer transmits the same through the multiple paths (here specifically refers to the Uu interface link between the UE1 and the base station and the relay link formed by the relay 1).
  • the data here specifically refers to the Uu interface link between the UE1 and the base station and the relay link formed by the relay 1).
  • the network device For uplink, the network device records the carried URB ID+Uu LCID corresponding to the relay link+Relay UE ID+UE ID+Source L2 ID/destination L2 ID/LCID+SLRB ID. After that, the network device can associate multiple paths that carry the same UE ID+SLRB ID.
  • step S14b The above process corresponds to step S14b.
  • User plane data header can carry UE ID+Uu RB ID.
  • the user plane data header can carry UE ID+SLRB ID.
  • Step S15 Data packet is repeated
  • Perform data packet repetition for the bearer of the configuration/activation repeated transmission for example, perform data packet repetition at the PDCP layer.
  • the repeated data packets are delivered to multiple different RLC entities corresponding to PDCP for carrying repeated data.
  • one PDCP entity of the bearer may correspond to multiple RLC entities, and the source ID/destination ID/LCID of different RLC entities may be completely different.
  • one PDCP entity of the bearer can correspond to multiple RLC entities at the same time.
  • the RLC entity corresponding to Uu is identified by LCID
  • the RLC entity corresponding to the relay is identified by source ID/destination ID/ LCID is the identification. If there are multiple relays at the same time, the source ID/destination ID/LCID of the RLC entities of different relays can be completely different.
  • Step S16 Repeated data transmission
  • this step is mainly to send repeated data via a relay.
  • the repeated data transmission here includes: uplink transmission of repeated data and downlink transmission of repeated data.
  • the UE1 For the uplink, after the UE1 sends the repeated data to the network device (such as the base station) through different paths, it also includes: the network device needs to perform repeated detection and reordering of the same data carried by the same UE received from multiple paths.
  • the network device such as the base station
  • the network test equipment After the network test equipment sends repeated data to UE1 through different paths, it also includes: UE1 needs to perform repeated detection and reordering of the same data carried by the same UE received from multiple paths
  • the embodiment of the present disclosure also provides a terminal, including: a memory 520, a processor 500, a transceiver 510, a bus interface and a program stored in the memory 520 and running on the processor 500, the transceiver 510 is used for:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 500 and various circuits of the memory represented by the memory 520 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 510 may be a plurality of elements, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on a transmission medium.
  • the user interface 530 may also be an interface capable of externally connecting internally required equipment.
  • the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.
  • the N relay nodes are relay nodes of the same type, and belong to the same serving cell or serving master node.
  • the processor 500 is configured to read a program stored in the memory 520, and execute the following process:
  • Repeated processing is performed on the to-be-transmitted data packets carried by the target to obtain repeated data.
  • processing 500 is further used for:
  • T relay nodes are selected.
  • processor 500 is further configured to:
  • the network According to the first reference signal received power RSRP threshold configured by the network, select T relay nodes from the relay nodes whose RSRP is greater than the first RSRP threshold in the order of RSRP from high to low; or,
  • processor 500 is further configured to:
  • the first association relationship between the T relay links formed by the T relay nodes is established, or the air interface between the terminal and the network device is established and the The first association relationship between T relay links formed by T relay nodes; or,
  • the first association relationship between the T relay links formed by the T relay nodes is established, or the air interface between the terminal and the network device is established and the A second association relationship between T relay links formed by T relay nodes.
  • processor 500 is further configured to:
  • Source identification Source L2 ID Source identification Source L2 ID
  • the direct communication interface radio bearer identification SLRB ID The direct communication interface radio bearer identification SLRB ID.
  • processor 500 is further configured to:
  • the terminal uses the link with the same Uu RB ID and UE ID as the downlink repeated transmission path.
  • processor 500 is further configured to:
  • the first association relationship between the T relay links formed by the T relay nodes is established through the terminal identifier UE ID and the bearer identifier RB ID carried in the user plane data header, or the terminal is established with The second association relationship between the air interface between the network devices and the T relay links formed by the T relay nodes.
  • the RB ID is Uu RB ID.
  • the transceiver 510 is also used for:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • processor 500 is further configured to:
  • the embodiment of the present disclosure also provides a terminal. Since the principle of the terminal to solve the problem is similar to the information transmission method in the embodiment of the present disclosure, the implementation of the terminal can refer to the implementation of the method, and the repetition will not be repeated.
  • the terminal of the embodiment of the present disclosure sends repeated data to the network device through N relay nodes, or through the air interface between the terminal and the network device and M relay nodes, where N ⁇ 2, M ⁇ 1 , N and M are both positive integers. In this way, the transmission delay of the terminal can be reduced and the reliability of data transmission of the terminal can be improved.
  • the terminal provided in the embodiments of the present disclosure is a terminal capable of executing the above-mentioned information transmission method, and all the embodiments of the above-mentioned information transmission method are applicable to the terminal, and all can achieve the same or similar beneficial effects.
  • an embodiment of the present disclosure also provides a terminal, including:
  • the first sending module 601 is configured to send repeated data to the network device in one of the following ways:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the N relay nodes are relay nodes of the same type, and belong to the same serving cell or serving master node.
  • a relay connection establishment module configured to establish a relay connection with the network device through the T relay nodes
  • the first association relationship establishment module is used to establish the first association relationship between the T relay links formed by the T relay nodes, or to establish the air interface between the terminal and the network device and A second association relationship between T relay links formed by the T relay nodes, and the first association relationship is used to indicate that the target bearer transmits the same data through the T relay links, The second association relationship is used to indicate that the target bearer transmits the same data through the air interface and the T relay links;
  • the repetitive processing module is used to repetitively process the to-be-transmitted data packets carried by the target to obtain repeated data.
  • the selection module may include:
  • the first selection unit is used to simultaneously select T relay nodes in a relay selection process; or,
  • the second selection unit is used to select T relay nodes through multiple relay selection processes.
  • the first selection unit is specifically configured to:
  • the network According to the first reference signal received power RSRP threshold configured by the network, select T relay nodes from the relay nodes whose RSRP is greater than the first RSRP threshold in the order of RSRP from high to low; or,
  • the first association relationship establishment module may include:
  • the first relationship establishment unit is configured to establish a first association relationship between the T relay links formed by the T relay nodes, or establish the relationship between the terminal and the network device through the control plane signaling process The second association relationship between the air interface between the T relay nodes and the T relay links formed by the T relay nodes; or,
  • the second relationship establishment unit is configured to establish a first association relationship between the T relay links formed by the T relay nodes, or establish the relationship between the terminal and the network device through the user plane signaling process The second association relationship between the air interface between the T relay nodes and the T relay links formed by the T relay nodes
  • the first relationship establishing unit is specifically configured to:
  • Source identification Source L2 ID Source identification Source L2 ID
  • the direct communication interface radio bearer identification SLRB ID The direct communication interface radio bearer identification SLRB ID.
  • the terminal uses the link of the same URB ID and UE ID as the downlink repeated transmission path.
  • the second relationship establishment unit is specifically configured to:
  • the first association relationship between the T relay links formed by the T relay nodes is established through the terminal identifier UE ID and the bearer identifier RB ID carried in the user plane data header, or the terminal is established with The second association relationship between the air interface between the network devices and the T relay links formed by the T relay nodes.
  • the RB ID is Uu RB ID.
  • the terminal of the embodiment of the present disclosure may further include:
  • the second receiving module is configured to receive repeated data sent by the network device in one of the following ways:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the terminal of the embodiment of the present disclosure may further include:
  • the first processing module is configured to perform repeated detection and reordering of the data belonging to the same bearer in the repeated data.
  • the embodiment of the present disclosure also provides a terminal. Since the principle of the terminal to solve the problem is similar to the information transmission method in the embodiment of the present disclosure, the implementation of the terminal can refer to the implementation of the method, and the repetition will not be repeated.
  • the first sending module sends the repeated data to the network device through N relay nodes, or through the air interface between the terminal and the network device and M relay nodes, where N ⁇ 2 , M ⁇ 1, N and M are both positive integers. In this way, the transmission delay of the terminal can be reduced and the reliability of data transmission of the terminal can be improved.
  • the terminal provided in the embodiments of the present disclosure is a terminal capable of executing the above-mentioned information transmission method, and all the embodiments of the above-mentioned information transmission method are applicable to the terminal, and all can achieve the same or similar beneficial effects.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the following steps are implemented:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • an embodiment of the present disclosure also provides a network device, including: a transceiver 710, a memory 720, a processor 700, and a program stored in the memory and running on the processor.
  • the transceiver 710 uses in:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 700 and various circuits of the memory represented by the memory 720 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 710 may be a plurality of elements, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on a transmission medium.
  • the processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 when performing operations.
  • the processor 700 is configured to read a program in the memory 720, and execute the following process:
  • the network device After the network device establishes a relay connection with the terminal, establish a first association relationship between a plurality of relay links formed by the relay connection, or establish a relationship between the network device and the terminal A second association relationship between the air interface of, and the multiple relay links formed by the relay connection, where the first association relationship is used to indicate that the target bearer transmits the same data through the multiple relay links, The second association relationship is used to indicate that the target bearer transmits the same data through the air interface and the multiple relay links.
  • processor 700 is further configured to:
  • the first association relationship between the multiple relay links formed by the relay connection is established, or the air interface between the network device and the terminal and the relay connection are established.
  • the second association relationship between the formed multiple relay links is established, or;
  • the first association relationship between the multiple relay links formed by the relay connection is established, or the air interface between the network device and the terminal and the relay connection are established.
  • the second association relationship between the formed multiple relay links is established.
  • processor 700 is further configured to:
  • Source identification Source L2 ID Source identification Source L2 ID
  • the direct communication interface radio bearer identification SLRB ID The direct communication interface radio bearer identification SLRB ID.
  • processor 700 is further configured to:
  • the network device uses the link with the same SLRB ID and UE ID as the uplink repeated transmission path.
  • processor 700 is further configured to:
  • the first association relationship between the multiple relay links formed by the relay connection is established through the terminal identification UE ID and the bearer identification RB ID carried in the user plane data header, or the network device and the The second association relationship between the air interface between the terminals and the multiple relay links formed by the relay connection.
  • the RB ID is SLRB ID.
  • processor 700 is further configured to:
  • the transceiver 710 is also used to:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the embodiment of the present disclosure also provides a network device. Since the principle of the network device to solve the problem is similar to the information transmission method in the embodiment of the present disclosure, the implementation of the network device can refer to the implementation of the method, and the repetition will not be repeated. .
  • the network device of the embodiment of the present disclosure receives repeated data sent by the terminal through N relay nodes, or through the air interface between the terminal and the network device and M relay nodes, where N ⁇ 2, M ⁇ 1 , N and M are both positive integers. In this way, repeated data transmission can be realized, the transmission delay of the terminal can be reduced, and the reliability of data transmission of the terminal can be improved.
  • the network equipment provided in the embodiments of the present disclosure is a network equipment capable of executing the above-mentioned information transmission method, and all the embodiments of the above-mentioned information transmission method are applicable to the network equipment, and can achieve the same or similar beneficial effects. .
  • the implementation of the present disclosure also provides a network device, including:
  • the first receiving module 801 is configured to receive repeated data sent by the terminal in one of the following ways:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the network device of the embodiment of the present disclosure may include:
  • the second association establishment module is configured to establish a first association relationship between multiple relay links formed by the relay connection after the network device and the terminal establish a relay connection, or to establish the A second association relationship between the air interface between the network device and the terminal and the plurality of relay links formed by the relay connection, and the first association relationship is used to instruct the target bearer to pass through the plurality of relay links. After the link transmits the same data, the second association relationship is used to instruct the target bearer to transmit the same data through the air interface and the multiple relay links.
  • the second association establishment module may include:
  • the third relationship establishment unit is used to establish the first association relationship between the multiple relay links formed by the relay connection through the control plane signaling process, or to establish the relationship between the network device and the terminal The second association relationship between the air interface of, and the multiple relay links formed by the relay connection; or;
  • the fourth relationship establishment unit is used to establish a first association relationship between multiple relay links formed by a relay connection, or to establish a relationship between the network device and the terminal through a user plane signaling process The second association relationship between the air interface and the multiple relay links formed by the relay connection.
  • the third relationship establishing unit is specifically configured to:
  • Source identification Source L2 ID Source identification Source L2 ID
  • the direct communication interface radio bearer identification SLRB ID The direct communication interface radio bearer identification SLRB ID.
  • the network device uses a link with the same SLRB ID and UE ID as the uplink repeated transmission path.
  • the fourth relationship establishing unit is specifically configured to:
  • the first association relationship between the multiple relay links formed by the relay connection is established through the terminal identification UE ID and the bearer identification RB ID carried in the user plane data header, or the network device and the The second association relationship between the air interface between the terminals and the multiple relay links formed by the relay connection.
  • the RB ID is SLRB ID.
  • the network device of the embodiment of the present disclosure may further include:
  • the second processing module is configured to perform repeated detection and reordering of the data belonging to the same bearer in the repeated data.
  • the network device of the embodiment of the present disclosure may further include:
  • the second sending module is used to send repeated data to the terminal in one of the following ways:
  • N relay nodes, N ⁇ 2, and N is a positive integer
  • M For the air interface between the terminal and the network device and M relay nodes, M ⁇ 1, and M is a positive integer.
  • the embodiment of the present disclosure also provides a network device. Since the principle of the network device to solve the problem is similar to the information transmission method in the embodiment of the present disclosure, the implementation of the network device can refer to the implementation of the method, and the repetition will not be repeated. .
  • the first receiving module receives the repeated data sent by the terminal through N relay nodes, or through the air interface between the terminal and the network device and M relay nodes, where N ⁇ 2 , M ⁇ 1, N and M are both positive integers.
  • N ⁇ 2 , M ⁇ 1, N and M are both positive integers.
  • the network equipment provided in the embodiments of the present disclosure is a network equipment capable of executing the above-mentioned information transmission method, and all the embodiments of the above-mentioned information transmission method are applicable to the network equipment, and can achieve the same or similar beneficial effects.
  • a computer-readable storage medium is also provided, on which a computer program is stored, and when the program is executed by a processor, the following steps are implemented:

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Abstract

本公开提供一种信息传输方法、终端及网络设备,解决终端通过中继接入网络时,数据传输可靠性低的问题。本公开的方法:通过以下方式之一,将重复数据发送至网络设备:N个中继节点,N≥2,且N为正整数;终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。

Description

信息传输方法、终端及网络设备
相关申请的交叉引用
本申请主张在2020年1月3日在中国提交的中国专利申请号No.202010006143.9的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域,尤其涉及一种信息传输方法、终端及网络设备。
背景技术
为了扩展网络覆盖,引入了中继。在网络覆盖范围外的用户设备(User Equipment,UE),可以通过中继接入网络。
相关技术中,UE的同一个业务只能通过一个中继进行传输,且UE和中继之间的链路是单载波的,因此UE通过中继接入网络时无法使用分组数据聚合协议(Packet Data Convergence Protocol,PDCP)重复传输机制,数据传输可靠性低。
发明内容
本公开的目的在于提供一种信息传输方法、终端及网络设备,用以解决相关技术中终端通过中继接入网络时,数据传输可靠性低的问题。
为了实现上述目的,本公开实施例提供一种信息传输方法,应用于终端,包括:
通过以下方式之一,将重复数据发送至网络设备:
N个中继节点,N≥2,且N为正整数;
所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
其中,所述N个中继节点为同一类型的中继节点,且归属于同一服务小区或服务主节点。
其中,所述将重复数据发送至网络设备之前,所述方法还包括:
在目标承载需要配置或者激活重复传输的情况下,选择T个中继节点,T=N或M;
通过所述T个中继节点,分别与所述网络设备建立中继连接;
建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第一关联关系,所述第一关联关系用于指示所述目标承载通过所述T条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述T条中继链路传输相同的数据;
对所述目标承载的待传输数据包进行重复处理,得到重复数据。
其中,所述选择T个中继节点,包括:
在一次中继选择过程中同时选择T个中继节点;或者,
通过多次中继选择过程,选择出T个中继节点。
其中,所述在一次中继选择过程中同时选择T个中继节点,包括:
根据网络配置的第一参考信号接收功率RSRP门限,从RSRP大于所述第一RSRP门限的中继节点中按照RSRP从高到低的顺序选择T个中继节点;或者,
根据中继节点的RSRP从高到低的顺序选择T个中继节点。
其中,所述建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,包括:
通过控制面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系;或者,
通过用户面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系。
其中,所述通过控制面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中 接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,包括:
对每条中继链路记录以下信息中的至少一项:
空中接口无线承载标识Uu RB ID;
所述中继链路对应的空中接口逻辑信道标识Uu LCID;
中继终端标识Relay UE ID;
终端标识UE ID;
源标识Source L2 ID;
目的标识destination L2 ID;
逻辑信道标识LCID;
直接通信接口无线承载标识SLRB ID。
其中,所述终端使用相同Uu RB ID和UE ID的链路作为下行重复传输路径。
其中,所述通过用户面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,包括:
通过用户面数据头部携带的终端标识UE ID以及承载标识RB ID,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系。
其中,对于下行,所述RB ID为Uu RB ID。
其中,所述方法还包括:
通过以下方式之一,接收所述网络设备发送的重复数据:
N个中继节点,N≥2,且N为正整数;
所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
其中,接收所述网络设备发送的重复数据之后,所述方法还包括:
对所述重复数据中归属于相同承载的数据进行重复检测和重排序。
为了实现上述目的,本公开实施例还提供一种信息传输方法,应用于网络设备,包括:
通过以下方式之一,接收终端发送的重复数据:
N个中继节点,N≥2,且N为正整数;
所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
其中,接收终端发送的重复数据之前,所述方法还包括:
在所述网络设备与所述终端建立中继连接之后,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,所述第一关联关系用于指示目标承载通过所述多条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述多条中继链路传输相同的数据。
其中,所述建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,包括:
通过控制面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系;或者;
通过用户面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
其中,所述通过控制面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,包括:
对每条中继链路记录以下信息中的至少一项:
空中接口无线承载标识Uu RB ID;
所述中继链路对应的空中接口逻辑信道标识Uu LCID;
中继终端标识Relay UE ID;
终端标识UE ID;
源标识Source L2 ID;
目的标识destination L2 ID;
逻辑信道标识LCID;
直接通信接口无线承载标识SLRB ID。
其中,所述网络设备使用相同SLRB ID和UE ID的链路作为上行重复传输路径。
其中,所述通过用户面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,包括:
通过用户面数据头部携带的终端标识UE ID以及承载标识RB ID,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
其中,对于上行,所述RB ID为SLRB ID。
其中,接收终端发送的重复数据之后,所述方法还包括:
将所述重复数据中归属于相同承载的数据进行重复检测和重排序。
其中,还包括:
通过以下方式之一,发送重复数据至终端:
N个中继节点,N≥2,且N为正整数;
所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
为了实现上述目的,本公开实施例还提供一种终端,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序;
所述收发机用于:
通过以下方式之一,将重复数据发送至网络设备:
N个中继节点,N≥2,且N为正整数;
所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
其中,所述N个中继节点为同一类型的中继节点,且归属于同一服务小区或服务主节点。
其中,所述处理器用于读取所述存储器存储的程序,执行下列过程:
在目标承载需要配置或者激活重复传输的情况下,选择T个中继节点,T=N或M;
通过所述T个中继节点,分别与所述网络设备建立中继连接;
建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,所述第一关联关系用于指示所述目标承载通过所述T条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述T条中继链路传输相同的数据;
对所述目标承载的待传输数据包进行重复处理,得到重复数据。
其中,所述处理器还用于:
在一次中继选择过程中同时选择T个中继节点;或者,
通过多次中继选择过程,选择出T个中继节点。
其中,所述处理器还用于:
根据网络配置的第一参考信号接收功率RSRP门限,从RSRP大于所述第一RSRP门限的中继节点中按照RSRP从高到低的顺序选择T个中继节点;或者,
根据中继节点的RSRP从高到低的顺序选择T个中继节点。
其中,所述处理器还用于:
通过控制面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系;或者,
通过用户面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系。
其中,所述处理器还用于:
对每条中继链路记录以下信息中的至少一项:
空中接口无线承载标识Uu RB ID;
所述中继链路对应的空中接口逻辑信道标识Uu LCID;
中继终端标识Relay UE ID;
终端标识UE ID;
源标识Source L2 ID;
目的标识destinationL2 ID;
逻辑信道标识LCID;
直接通信接口无线承载标识SLRB ID。
其中,所述处理器还用于:
所述终端使用相同Uu RB ID和UE ID的链路作为下行重复传输路径。
其中,所述处理器还用于:
通过用户面数据头部携带的终端标识UE ID以及承载标识RB ID,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系。
其中,对于下行,所述RB ID为Uu RB ID。
其中,所述收发机还用于:
通过以下方式之一,接收所述网络设备发送的重复数据:
N个中继节点,N≥2,且N为正整数;
所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
其中,所述处理器还用于:
对所述重复数据中归属于相同承载的数据进行重复检测和重排序。
为了实现上述目的,本公开实施例还提供一种终端,包括:
第一发送模块,用于通过以下方式之一,将重复数据发送至网络设备:
N个中继节点,N≥2,且N为正整数;
所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
为了实现上述目的,本公开实施例还提供一种计算机可读存储介质,其 上存储有计算机程序,该计算机程序被处理器执行时实现如上述所述的信息传输方法的步骤。
为了实现上述目的,本公开实施例还提供了一种网络设备,包括:收发机、存储器、处理器及存储在存储器上并可在处理器上运行的程序,所述收发机用于:
通过以下方式之一,接收终端发送的重复数据:
N个中继节点,N≥2,且N为正整数;
所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
其中,所述处理器用于读取所述存储器中的程序,执行下列过程:
在所述网络设备与所述终端建立中继连接之后,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,所述第一关联关系用于指示目标承载通过所述多条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述多条中继链路传输相同的数据。
其中,所述处理器还用于:
通过控制面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系;或者;
通过用户面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
其中,所述处理器还用于:
对每条中继链路记录以下信息中的至少一项:
空中接口无线承载标识Uu RB ID;
所述中继链路对应的空中接口逻辑信道标识Uu LCID;
中继终端标识Relay UE ID;
终端标识UE ID;
源标识Source L2 ID;
目的标识destination L2 ID;
逻辑信道标识LCID;
直接通信接口无线承载标识SLRB ID。
其中,所述处理器还用于:
所述网络设备使用相同SLRB ID和UE ID的链路作为上行重复传输路径。
其中,所述处理器还用于:
通过用户面数据头部携带的终端标识UE ID以及承载标识RB ID,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
其中,对于上行,所述RB ID为SLRB ID。
其中,所述处理器还用于:
将所述重复数据中归属于相同承载的数据进行重复检测和重排序。
其中,所述收发机还用于:
通过以下方式之一,发送重复数据至终端:
N个中继节点,N≥2,且N为正整数;
所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
为了实现上述目的,本公开实施例还提供了一种网络设备,包括:
第一接收模块,用于通过以下方式之一,接收终端发送的重复数据:
N个中继节点,N≥2,且N为正整数;
所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
为了实现上述目的,本公开实施例还提供一种计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现如上述所述的信息传输方法的步骤。
本公开的上述技术方案至少具有如下有益效果:
本公开实施例的上述技术方案中,通过N个中继节点,或者,通过终端 与网络设备之间的空中接口以及M个中继节点,将重复数据发送至网络设备,其中,N≥2,M≥1,N、M均为正整数,如此,能够降低终端的传输时延,提升终端数据传输的可靠性。
附图说明
图1为本公开实施例提供的信息传输方法的流程示意图之一;
图2为本公开实施例提供的信息传输方法的流程示意图之二;
图3为本公开实施例提供的信息传输方法的流程示意图之三;
图4为本公开实施例提供的信息传输方法的流程示意图之四;
图5为本公开实施例的终端的结构框图;
图6为本公开实施例的终端的模块示意图;
图7为本公开实施例的网络设备的结构框图;
图8为本公开实施例的网络设备的模块示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚,下面将结合附图及具体实施例进行详细描述。
如图1所示,为本公开实施例提供的一种信息传输方法的流程示意图,应用于终端,包括:
步骤101:通过以下方式之一,将重复数据发送至网络设备:
N个中继节点,N≥2,且N为正整数;
所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
本步骤中,可选地,所述N个中继节点为同一类型的中继节点,且归属于同一服务小区或服务主节点。
这里,终端与网络设备之间的空中接口可为Uu接口。
需要说明的是,上述步骤中的中继节点可为中继终端relay UE。
这里,通过多个(至少两个)中继节点,或者,通过Uu链路和至少一个中继节点,能够实现数据的重复传输,减低传输时延并提升可靠性。
本公开实施例的信息传输方法,通过N个中继节点,或者,通过终端与网络设备之间的空中接口以及M个中继节点,将重复数据发送至网络设备,其中,N≥2,M≥1,N、M均为正整数,如此,能够降低终端的传输时延,提升终端数据传输的可靠性。
基于图1所示的实施例,作为一可选地实现方式,在步骤101之前,本公开方法还可包括:
在目标承载需要配置或者激活重复传输的情况下,选择T个中继节点,T=N或M;
本步骤中,目标承载为直接通信接口无线承载(Sidelink Radio Bearer,SLRB)或者空中接口对应的无线承载(如Uu承载)。
这里,本步骤包括以下两种中继选择方式,具体的:
方式一、在一次中继选择过程中同时选择T个中继节点;
在本选择方式中,可具体包括以下步骤:
根据网络配置的第一参考信号接收功率RSRP门限,从RSRP大于所述第一RSRP门限的中继节点中按照RSRP从高到低的顺序选择T个中继节点;或者,
根据中继节点的RSRP从高到低的顺序选择T个中继节点。
方式二、通过多次中继选择过程,选择出T个中继节点。
也就是说,通过多次中继选择,每次中继选择可以是选择一个中继节点或者多个中继节点,总计选出T个中继节点即可。
通过所述T个中继节点,分别与所述网络设备建立中继连接;
建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,所述第一关联关系用于指示所述目标承载通过所述T条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述T条中继链路传输相同的数据;
这里,作为一可选地实现方式,本步骤可具体包括:
通过控制面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由 所述T个中继节点形成的T条中继链路之间的第二关联关系。
可选地,通过控制面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,可具体包括:
对每条中继链路记录以下信息中的至少一项:
空中接口无线承载标识Uu RB ID;
所述中继链路对应的空中接口逻辑信道标识Uu LCID;
中继终端标识Relay UE ID;
终端标识UE ID;
源标识Source L2 ID;
目的标识destination L2 ID;
逻辑信道标识LCID;
直接通信接口无线承载标识SLRB ID。
基于此,进一步地,所述终端使用相同Uu RB ID和UE ID的链路作为下行重复传输路径。
作为另一可选地实现方式,本步骤可具体包括:
通过用户面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系。
这里,本步骤可具体包括:
通过用户面数据头部携带的终端标识UE ID以及承载标识RB ID,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系。
基于此,进一步地,对于下行,所述RB ID为空中接口无线承载标识Uu RB ID。
需要说明的是,无论是通过控制面信令过程,还是通过用户面信令过程,建立上述多条路径之间的关联关系,其目的均是为了使网络设备和/或终端能 够识别出从不同路径接收到的是同一个UE相同承载的数据。
对所述目标承载的待传输数据包进行重复处理,得到重复数据。
这里,若所述目标承载为SLRB,则在得到重复数据之后,通过N个中继节点,将所述重复数据发送至网络设备。
若所述目标承载为Uu承载,则在得到重复数据之后,通过终端与网络设备之间的空中接口以及M个中继节点,将所述重复数据发送至网络设备。
基于图1所示的实施例,作为一可选地实现方式,本公开方法还可包括:
通过以下方式之一,接收所述网络设备发送的重复数据:
N个中继节点,N≥2,且N为正整数;
所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
进一步地,在接收所述网络设备发送的重复数据之后,本公开方法还可包括:
对所述重复数据中归属于相同承载的数据进行重复检测和重排序。
需要说明的是,可通过预先建立的上述多条路径之间的关联关系,识别出从不同路径接收到的使用相同Uu RB ID和UE ID的相同承载的数据。此时,UE ID为本公开实施例的终端的标识。
需要说明的是,对于本公开实施例的终端:
在通过N个中继节点,将重复数据发送至网络设备的情况下,所述目标承载的一个PDCP实体对应多个RLC实体,其中,每个RLC实体的源标识、目标标识以及逻辑信道标识均不相同。
在通过终端与网络设备之间的空中接口以及M个中继节点,将重复数据发送至网络设备的情况下,所述目标承载的一个PDCP实体对应多个RLC实体,其中,所述空中接口对应的RLC实体以逻辑信道标识为标识,所述中继节点对应的RLC实体以源标识、目标标识以及逻辑信道标识为标识;在同时有多个中继节点,不同中继节点对应的RLC实体的源标识、目标标识以及逻辑信道标识均不相同。
本公开实施例的信息传输方法,通过N个中继节点,或者,通过终端与网络设备之间的空中接口以及M个中继节点,将重复数据发送至网络设备, 其中,N≥2,M≥1,N、M均为正整数,如此,能够降低终端的传输时延,提升终端数据传输的可靠性。
如图2所示,为本公开实施例提供的一种信息传输方法的流程示意图,应用于网络设备,包括:
步骤201:通过以下方式之一,接收终端发送的重复数据:
N个中继节点,N≥2,且N为正整数;
所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
需要说明的是,本步骤与上述终端侧实施例中方法步骤101相对应。
本步骤中,可选地,所述N个中继节点为同一类型的中继节点,且归属于同一服务小区或服务主节点。
这里,终端与网络设备之间的空中接口可为Uu接口。
需要说明的是,上述步骤中的中继节点可为中继终端relay UE。
本公开实施例的信息传输方法,通过N个中继节点,或者,通过终端与网络设备之间的空中接口以及M个中继节点,接收终端发送的重复数据,其中,N≥2,M≥1,N、M均为正整数,如此,能够实现数据的重复传输,降低终端的传输时延,提升终端数据传输的可靠性。
作为一可选地实现方式,在步骤201之前,本公开方法还可包括:
在所述网络设备与所述终端建立中继连接之后,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,所述第一关联关系用于指示目标承载通过所述多条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述多条中继链路传输相同的数据。
这里,作为一可选地实现方式,本步骤可具体包括:
通过控制面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
可选地,通过控制面信令过程,建立由中继连接所形成的多条中继链路 之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系可具体包括:
对每条中继链路记录以下信息中的至少一项:
空中接口无线承载标识Uu RB ID;
所述中继链路对应的空中接口逻辑信道标识Uu LCID;
中继终端标识Relay UE ID;
终端标识UE ID;
源标识Source L2 ID;
目的标识destination L2 ID;
逻辑信道标识LCID;
直接通信接口无线承载标识SLRB ID。
基于此,进一步地,所述网络设备使用相同SLRB ID和UE ID的链路作为上行重复传输路径。
作为另一可选地实现方式,本步骤可具体包括:
通过用户面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
这里,本步骤可具体包括:
通过用户面数据头部携带的终端标识UE ID以及承载标识RB ID,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
基于此,进一步地,对于上行,所述RB ID为SLRB ID。
需要说明的是,无论是通过控制面信令过程,还是通过用户面信令过程,建立上述多条路径之间的关联关系,其目的均是为了使网络设备和/或终端能够识别出从不同路径接收到的是同一个UE相同承载的数据。
基于图2所示的实施例,作为一可选地实现方式,在步骤201之后,本公开方法还可包括:
将所述重复数据中归属于相同承载的数据进行重复检测和重排序。
需要说明的是,网络设备可通过预先建立的上述多条路径之间的关联关系,识别出不同路径接收到的使用相同Uu RB ID和UE ID的相同承载的数据。
基于图2所示的实施例,作为一可选地实现方式,本公开方法还包括:
通过以下方式之一,发送重复数据至终端:
N个中继节点,N≥2,且N为正整数;
所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
本公开实施例提供的信息传输方法,通过N个中继节点,或者,通过终端与网络设备之间的空中接口以及M个中继节点,接收终端发送的重复数据,其中,N≥2,M≥1,N、M均为正整数,如此,能够实现数据的重复传输,降低终端的传输时延,提升终端数据传输的可靠性。
下面就以下两个示例,通过终端与网络设备之间的流程交互,详细说明本公开方法的具体实施过程。
示例一终端通过多个中继进行重复传输
需要说明的是,本示例中的终端UE1,也就是在网络覆盖范围外的UE。
如图3所示,步骤S1:UE1执行中继选择
需要说明的是,在满足预设条件时,UE1执行中继选择,即通过中继节点接入网络。
这里,预设条件可以为:Uu接口信道质量低于预设门限。即,在Uu接口信道质量低于预设门限的情况下,触发中继选择。
具体的,UE1可以根据网络配置的RSRP门限,从满足RSRP门限的中继节点中选择RSRP最高的中继节点。
步骤S2:中继连接建立
这里,包括步骤S2a和步骤S2b,UE1通过所选择的中继1与网络建立连接。
这里,中继1为L2中继,故UE1对基站是可见的。
步骤S3:重复传输配置或者激活触发中继选择
终端针对某个SLRB判断是否需要配置/激活重复传输,如果判断需要配 置/激活重复传输,则触发中继选择,选择的中继个数等于该SLRB对应的RLC实体个数。
步骤S4:中继连接建立
这里,包括步骤S4a和S4b。UE1通过上述步骤S3中选择出来的中继2建立中继连接。
步骤5:建立多条中继链路的关联关系
这里,包括步骤S5a和S5b。
具体关联关系的建立可以走控制面信令过程,也可以走用户面过程。
1)通过控制面信令过程建立多条路径之间的关联关系。
对于下行:UE1通过中继和网络建立承载时,针对每个中继链路,UE1记录所述承载的Uu RB ID+所述中继链路对应的Uu LCID+Relay UE ID+UE ID+Source L2 ID/destination L2 ID/LCID+SLRB ID。之后,UE1可以将承载相同UE ID+Uu RB ID的多个中继链路进行关联。
上述过程对应步骤S5a。
这里,关联的目的是为了指示该SLRB通过该多个中继链路传输相同的数据。
对于上行,UE1通过中继和网络建立承载时,针对每个中继链路,网络设备记录所述承载的Uu RB ID+所述中继链路对应的Uu LCID+Relay UE ID+UE ID+Source L2 ID/destination L2 ID/LCID+SLRB ID。之后,网络设备可以将承载相同UE ID+SLRB ID的多个中继链路进行关联。
上述过程对应步骤S5b。
2)通过用户面信令过程建立多条路径之间的关联关系。
下行:用户面数据头部可以携带UE ID+Uu RB ID。
上行:用户面数据头部可以携带UE ID+SLRB ID。
步骤S6:数据包重复
对于配置/激活重复传输的承载执行数据包重复,比如在PDCP层进行数据包重复。将重复的数据包传递至PDCP对应的多个用于承载重复数据的不同RLC实体。
如果通过多个中继进行重复传输,所述承载的一个PDCP实体可以对应 多个RLC实体,不同RLC实体的source ID/destination ID/LCID可以完全不同。
如果通过Uu和至少一个中继执行重复传输,所述承载的一个PDCP实体可以同时对应多个RLC实体,Uu对应的RLC实体以LCID为标识,中继对应的RLC实体以source ID/destination ID/LCID为标识。如果同时有多个中继,不同中继的RLC实体的source ID/destination ID/LCID可以完全不同。
步骤S7:重复数据传输
包括步骤S7a/S7b/S7c/S7d,该步骤主要是经由中继进行重复数据的发送。这里的重复数据发送包括:重复数据的上行发送和重复数据的下行发送。
对于上行,UE1将重复数据通过不同路径发送给网络设备(如基站)之后,还包括:网络设备需要对从多条路径接收到的同一个UE相同承载的数据执行重复检测的和重排序。
对于下行,网络测设备将重复数据通过不同路径发送给UE1之后,还包括:UE1需要对从多条路径接收到的同一个UE相同承载的数据执行重复检测的和重排序。
示例二终端通过空中接口Uu接口和至少一个中继进行重复传输
需要说明的是,本示例中的终端UE1,也就是在网络覆盖范围外的UE。
如图4所示,步骤S11,重传传输配置或者激活触发中继选择
这里,终端先建立一个Uu承载,之后终端针对该Uu承载判断是否需要配置/激活重复传输,如果判断需要配置/激活重复传输,则触发中继选择,选择的中继个数等于该Uu承载对应的RLC实体个数减1。
步骤S12,UE1执行中继选择
这里,具体的,UE1可以根据网络配置的RSRP门限,从满足RSRP门限的中继节点中按照RSRP从高到低的顺序选择多个中继节点。
步骤S13,中继连接建立
这里,包括步骤S13a和步骤S13b,UE1通过所选择的中继1与网络(即基站)建立连接。
这里,中继1为L2中继,故UE1对基站是可见的。
步骤S14:建立Uu接口以及多条中继链路之间的关联关系
这里,具体的,本示例中,建立UE1与基站之间的Uu接口链路和由中继1形成的中继链路这两条路径之间的关联关系。
这里,包括步骤S14a和S14b。
具体关联关系的建立可以走控制面信令过程,也可以走用户面过程。
1)通过控制面信令过程建立多条路径之间的关联关系。
对于下行:UE1记录承载的Uu RB ID+所述中继链路对应的Uu LCID+Relay UE ID+UE ID+Source L2 ID/destination L2 ID/LCID+SLRB ID。之后,UE1可以将承载相同UE ID+Uu RB ID的多个路径进行关联。
上述过程对应步骤S14a。
这里,关联的目的是为了指示该Uu承载通过该多个路径(这里具体指的是UE1与基站之间的Uu接口链路和由中继1形成的中继链路这两条路径)传输相同的数据。
对于上行,网络设备记录承载的Uu RB ID+所述中继链路对应的Uu LCID+Relay UE ID+UE ID+Source L2 ID/destination L2 ID/LCID+SLRB ID。之后,网络设备可以将承载相同UE ID+SLRB ID的多个路径进行关联。
上述过程对应步骤S14b。
2)通过用户面信令过程建立多条路径之间的关联关系。
下行:用户面数据头部可以携带UE ID+Uu RB ID。
上行:用户面数据头部可以携带UE ID+SLRB ID。
步骤S15:数据包重复
对于配置/激活重复传输的承载执行数据包重复,比如在PDCP层进行数据包重复。将重复的数据包传递至PDCP对应的多个用于承载重复数据的不同RLC实体。
如果通过多个中继进行重复传输,所述承载的一个PDCP实体可以对应多个RLC实体,不同RLC实体的source ID/destination ID/LCID可以完全不同。
如果通过Uu和至少一个中继执行重复传输,所述承载的一个PDCP实体可以同时对应多个RLC实体,Uu对应的RLC实体以LCID为标识,中继对应的RLC实体以source ID/destination ID/LCID为标识。如果同时有多个中 继,不同中继的RLC实体的source ID/destination ID/LCID可以完全不同。
步骤S16:重复数据传输
包括步骤S16a/S16b/S16c,该步骤主要是经由中继进行重复数据的发送。这里的重复数据发送包括:重复数据的上行发送和重复数据的下行发送。
对于上行,UE1将重复数据通过不同路径发送给网络设备(如基站)之后,还包括:网络设备需要对从多条路径接收到的同一个UE相同承载的数据执行重复检测的和重排序。
对于下行,网络测设备将重复数据通过不同路径发送给UE1之后,还包括:UE1需要对从多条路径接收到的同一个UE相同承载的数据执行重复检测的和重排序
如图所示,本公开实施例还提供了一种终端,包括:存储器520、处理器500、收发机510、总线接口及存储在存储器520上并可在处理器500上运行的程序,收发机510用于:
通过以下方式之一,将重复数据发送至网络设备:
N个中继节点,N≥2,且N为正整数;
所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
其中,在图5中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器500代表的一个或多个处理器和存储器520代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机510可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口530还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器500负责管理总线架构和通常的处理,存储器520可以存储处理器500在执行操作时所使用的数据。
可选地,所述N个中继节点为同一类型的中继节点,且归属于同一服务小区或服务主节点。
可选地,所述处理器500用于读取所述存储器520存储的程序,执行下列过程:
在目标承载需要配置或者激活重复传输的情况下,选择T个中继节点,T=N或M;
通过所述T个中继节点,分别与所述网络设备建立中继连接;
建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,所述第一关联关系用于指示所述目标承载通过所述T条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述T条中继链路传输相同的数据;
对所述目标承载的待传输数据包进行重复处理,得到重复数据。
可选地,所述处理500还用于:
在一次中继选择过程中同时选择T个中继节点;或者,
通过多次中继选择过程,选择出T个中继节点。
可选地,所述处理器500还用于:
根据网络配置的第一参考信号接收功率RSRP门限,从RSRP大于所述第一RSRP门限的中继节点中按照RSRP从高到低的顺序选择T个中继节点;或者,
根据中继节点的RSRP从高到低的顺序选择T个中继节点。
可选地,所述处理器500还用于:
通过控制面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第一关联关系;或者,
通过用户面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系。
可选地,所述处理器500还用于:
对每条中继链路记录以下信息中的至少一项:
空中接口无线承载标识Uu RB ID;
所述中继链路对应的空中接口逻辑信道标识Uu LCID;
中继终端标识Relay UE ID;
终端标识UE ID;
源标识Source L2 ID;
目的标识destination L2 ID;
逻辑信道标识LCID;
直接通信接口无线承载标识SLRB ID。
可选地,所述处理器500还用于:
所述终端使用相同Uu RB ID和UE ID的链路作为下行重复传输路径。
可选地,所述处理器500还用于:
通过用户面数据头部携带的终端标识UE ID以及承载标识RB ID,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系。
可选地,对于下行,所述RB ID为Uu RB ID。
可选地,所述收发机510还用于:
通过以下方式之一,接收所述网络设备发送的重复数据:
N个中继节点,N≥2,且N为正整数;
所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
可选地,所述处理器500还用于:
对所述重复数据中归属于相同承载的数据进行重复检测和重排序。
本公开实施例中还提供了一种终端,由于终端解决问题的原理与本公开实施例中信息传输方法相似,因此该终端的实施可以参见方法的实施,重复之处不再敷述。
本公开实施例的终端,通过N个中继节点,或者,通过终端与网络设备之间的空中接口以及M个中继节点,将重复数据发送至网络设备,其中,N≥2,M≥1,N、M均为正整数,如此,能够降低终端的传输时延,提升终端数据传输的可靠性。
需要说明的是,本公开实施例提供的终端是能够执行上述信息传输方法的终端,则上述信息传输方法的所有实施例均适用于该终端,且均能达到相同或相似的有益效果。
如图6所示,本公开实施例还提供了一种终端,包括:
第一发送模块601,用于通过以下方式之一,将重复数据发送至网络设备:
N个中继节点,N≥2,且N为正整数;
所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
可选地,所述N个中继节点为同一类型的中继节点,且归属于同一服务小区或服务主节点。
本公开实施例的终端,还可包括:
选择模块,用于在目标承载需要配置或者激活重复传输的情况下,选择T个中继节点,T=N或M;
中继连接建立模块,用于通过所述T个中继节点,分别与所述网络设备建立中继连接;
第一关联关系建立模块,用于建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,所述第一关联关系用于指示所述目标承载通过所述T条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述T条中继链路传输相同的数据;
重复处理模块,用于对所述目标承载的待传输数据包进行重复处理,得到重复数据。
可选地,所述选择模块可包括:
第一选择单元,用于在一次中继选择过程中同时选择T个中继节点;或者,
第二选择单元,用于通过多次中继选择过程,选择出T个中继节点。
可选地,所述第一选择单元具体用于:
根据网络配置的第一参考信号接收功率RSRP门限,从RSRP大于所述第一RSRP门限的中继节点中按照RSRP从高到低的顺序选择T个中继节点;或者,
根据中继节点的RSRP从高到低的顺序选择T个中继节点。
可选地,所述第一关联关系建立模块可包括:
第一关系建立单元,用于通过控制面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系;或者,
第二关系建立单元,用于通过用户面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系
可选地,所述第一关系建立单元具体用于:
对每条中继链路记录以下信息中的至少一项:
空中接口无线承载标识Uu RB ID;
所述中继链路对应的空中接口逻辑信道标识Uu LCID;
中继终端标识Relay UE ID;
终端标识UE ID;
源标识Source L2 ID;
目的标识destination L2 ID;
逻辑信道标识LCID;
直接通信接口无线承载标识SLRB ID。
可选地,所述终端使用相同Uu RB ID和UE ID的链路作为下行重复传输路径。
可选地,所述第二关系建立单元具体用于:
通过用户面数据头部携带的终端标识UE ID以及承载标识RB ID,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中 继链路之间的第二关联关系。
可选地,对于下行,所述RB ID为Uu RB ID。
可选地,本公开实施例的终端,还可包括:
第二接收模块,用于通过以下方式之一,接收所述网络设备发送的重复数据:
N个中继节点,N≥2,且N为正整数;
所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
可选地,本公开实施例的终端,还可包括:
第一处理模块,用于对所述重复数据中归属于相同承载的数据进行重复检测和重排序。
本公开实施例中还提供了一种终端,由于终端解决问题的原理与本公开实施例中信息传输方法相似,因此该终端的实施可以参见方法的实施,重复之处不再敷述。
本公开实施例的终端,第一发送模块通过N个中继节点,或者,通过终端与网络设备之间的空中接口以及M个中继节点,将重复数据发送至网络设备,其中,N≥2,M≥1,N、M均为正整数,如此,能够降低终端的传输时延,提升终端数据传输的可靠性。
需要说明的是,本公开实施例提供的终端是能够执行上述信息传输方法的终端,则上述信息传输方法的所有实施例均适用于该终端,且均能达到相同或相似的有益效果。
在本公开的一些实施例中,还提供了一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现以下步骤:
通过以下方式之一,将重复数据发送至网络设备:
N个中继节点,N≥2,且N为正整数;
所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
该程序被处理器执行时能实现上述应用于如图1所示的终端侧的方法实施例中的所有实现方式,为避免重复,此处不再赘述。
如图7所示,本公开实施例还提供一种网络设备,包括:收发机710、存储器720、处理器700及存储在存储器上并可在处理器上运行的程序,所述收发机710用于:
通过以下方式之一,接收终端发送的重复数据:
N个中继节点,N≥2,且N为正整数;
所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
其中,在图7中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器700代表的一个或多个处理器和存储器720代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机710可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。处理器700负责管理总线架构和通常的处理,存储器720可以存储处理器700在执行操作时所使用的数据。
可选地,所述处理器700用于读取存储器720中的程序,执行下列过程:
在所述网络设备与所述终端建立中继连接之后,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,所述第一关联关系用于指示目标承载通过所述多条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述多条中继链路传输相同的数据。
可选地,所述处理器700还用于:
通过控制面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系;或者;
通过用户面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
可选地,所述处理器700还用于:
对每条中继链路记录以下信息中的至少一项:
空中接口无线承载标识Uu RB ID;
所述中继链路对应的空中接口逻辑信道标识Uu LCID;
中继终端标识Relay UE ID;
终端标识UE ID;
源标识Source L2 ID;
目的标识destinationL2 ID;
逻辑信道标识LCID;
直接通信接口无线承载标识SLRB ID。
可选地,所述处理器700还用于:
所述网络设备使用相同SLRB ID和UE ID的链路作为上行重复传输路径。
可选地,所述处理器700还用于:
通过用户面数据头部携带的终端标识UE ID以及承载标识RB ID,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
可选地,对于上行,所述RB ID为SLRB ID。
可选地,所述处理器700还用于:
将所述重复数据中归属于相同承载的数据进行重复检测和重排序。
可选地,所述收发机710还用于:
通过以下方式之一,发送重复数据至终端:
N个中继节点,N≥2,且N为正整数;
所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
本公开实施例中还提供了一种网络设备,由于网络设备解决问题的原理与本公开实施例中信息传输方法相似,因此该网络设备的实施可以参见方法的实施,重复之处不再敷述。
本公开实施例的网络设备,通过N个中继节点,或者,通过终端与网络 设备之间的空中接口以及M个中继节点,接收终端发送的重复数据,其中,N≥2,M≥1,N、M均为正整数,如此,能够实现数据的重复传输,降低终端的传输时延,提升终端数据传输的可靠性。
需要说明的是,本公开实施例提供的网络设备是能够执行上述信息传输方法的网络设备,则上述信息传输方法的所有实施例均适用于该网络设备,且均能达到相同或相似的有益效果。
如图8所示,本公开实施还提供了一种网络设备,包括:
第一接收模块801,用于通过以下方式之一,接收终端发送的重复数据:
N个中继节点,N≥2,且N为正整数;
所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
可选地,本公开实施例的网络设备可包括:
第二关联建立模块,用于在所述网络设备与所述终端建立中继连接之后,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,所述第一关联关系用于指示目标承载通过所述多条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述多条中继链路传输相同的数据。
可选地,所述第二关联建立模块,可包括:
第三关系建立单元,用于通过控制面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系;或者;
第四关系建立单元,用于通过用户面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
可选地,所述第三关系建立单元具体用于:
对每条中继链路记录以下信息中的至少一项:
空中接口无线承载标识Uu RB ID;
所述中继链路对应的空中接口逻辑信道标识Uu LCID;
中继终端标识Relay UE ID;
终端标识UE ID;
源标识Source L2 ID;
目的标识destination L2 ID;
逻辑信道标识LCID;
直接通信接口无线承载标识SLRB ID。
可选地,所述网络设备将使用相同SLRB ID和UE ID的链路作为上行重复传输路径。
可选地,所述第四关系建立单元具体用于:
通过用户面数据头部携带的终端标识UE ID以及承载标识RB ID,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
可选地,对于上行,所述RB ID为SLRB ID。
可选地,本公开实施例的网络设备,还可包括:
第二处理模块,用于将所述重复数据中归属于相同承载的数据进行重复检测和重排序。
可选地,本公开实施例的网络设备,还可包括:
第二发送模块,用于通过以下方式之一,发送重复数据至终端:
N个中继节点,N≥2,且N为正整数;
所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
本公开实施例中还提供了一种网络设备,由于网络设备解决问题的原理与本公开实施例中信息传输方法相似,因此该网络设备的实施可以参见方法的实施,重复之处不再敷述。
本公开实施例的网络设备,第一接收模块通过N个中继节点,或者,通过终端与网络设备之间的空中接口以及M个中继节点,接收终端发送的重复数据,其中,N≥2,M≥1,N、M均为正整数,如此,能够实现数据的重 复传输,降低终端的传输时延,提升终端数据传输的可靠性。
需要说明的是,本公开实施例提供的网络设备是能够执行上述信息传输方法的网络设备,则上述信息传输方法的所有实施例均适用于该网络设备,且均能达到相同或相似的有益效果。在本公开的一些实施例中,还提供了一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现以下步骤:
该程序被处理器执行时能实现上述应用于如2图所示的网络设备侧的方法实施例中的所有实现方式,为避免重复,此处不再赘述。
在本公开的各种实施例中,应理解,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本公开实施例的实施过程构成任何限定。
以上所述是本公开的可选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。

Claims (35)

  1. 一种信息传输方法,应用于终端,包括:
    通过以下方式之一,将重复数据发送至网络设备:
    N个中继节点,N≥2,且N为正整数;
    所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
  2. 根据权利要求1所述的方法,其中,所述N个中继节点为同一类型的中继节点,且归属于同一服务小区或服务主节点。
  3. 根据权利要求1所述的方法,其中,所述将重复数据发送至网络设备之前,所述方法还包括:
    在目标承载需要配置或者激活重复传输的情况下,选择T个中继节点,T=N或M;
    通过所述T个中继节点,分别与所述网络设备建立中继连接;
    建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,所述第一关联关系用于指示所述目标承载通过所述T条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述T条中继链路传输相同的数据;
    对所述目标承载的待传输数据包进行重复处理,得到重复数据。
  4. 根据权利要求3所述的方法,其中,所述选择T个中继节点,包括:
    在一次中继选择过程中同时选择T个中继节点;或者,
    通过多次中继选择过程,选择出T个中继节点。
  5. 根据权利要求4所述的方法,其中,所述在一次中继选择过程中同时选择T个中继节点,包括:
    根据网络配置的第一参考信号接收功率RSRP门限,从RSRP大于所述第一RSRP门限的中继节点中按照RSRP从高到低的顺序选择T个中继节点;或者,
    根据中继节点的RSRP从高到低的顺序选择T个中继节点。
  6. 根据权利要求3所述的方法,其中,所述建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,包括:
    通过控制面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系;或者,
    通过用户面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系。
  7. 根据权利要求6所述的方法,其中,所述通过控制面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,包括:
    对每条中继链路记录以下信息中的至少一项:
    空中接口无线承载标识Uu RB ID;
    所述中继链路对应的空中接口逻辑信道标识Uu LCID;
    中继终端标识Relay UE ID;
    终端标识UE ID;
    源标识Source L2 ID;
    目的标识destination L2 ID;
    逻辑信道标识LCID;
    直接通信接口无线承载标识SLRB ID。
  8. 根据权利要求7所述的方法,其中,所述终端使用相同Uu RB ID和UE ID的链路作为下行重复传输路径。
  9. 根据权利要求6所述的方法,其中,所述通过用户面信令过程,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,包括:
    通过用户面数据头部携带的终端标识UE ID以及承载标识RB ID,建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系。
  10. 根据权利要求9所述的方法,其中,对于下行,所述RB ID为Uu RB ID。
  11. 根据权利要求1所述的方法,还包括:
    通过以下方式之一,接收所述网络设备发送的重复数据:
    N个中继节点,N≥2,且N为正整数;
    所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
  12. 根据权利要求11所述的方法,其中,接收所述网络设备发送的重复数据之后,所述方法还包括:
    对所述重复数据中归属于相同承载的数据进行重复检测和重排序。
  13. 一种信息传输方法,应用于网络设备,包括:
    通过以下方式之一,接收终端发送的重复数据:
    N个中继节点,N≥2,且N为正整数;
    所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
  14. 根据权利要求13所述的方法,其中,接收终端发送的重复数据之前,所述方法还包括:
    在所述网络设备与所述终端建立中继连接之后,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,所述第一关联关系用于指示目标承载通过所述多条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述多条中继链路传输相同的数据。
  15. 根据权利要求14所述的方法,其中,所述建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之 间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,包括:
    通过控制面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系;或者;
    通过用户面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
  16. 根据权利要求15所述的方法,其中,所述通过控制面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,包括:
    对每条中继链路记录以下信息中的至少一项:
    空中接口无线承载标识Uu RB ID;
    所述中继链路对应的空中接口逻辑信道标识Uu LCID;
    中继终端标识Relay UE ID;
    终端标识UE ID;
    源标识Source L2 ID;
    目的标识destination L2 ID;
    逻辑信道标识LCID;
    直接通信接口无线承载标识SLRB ID。
  17. 根据权利要求16所述的方法,其中,所述网络设备将使用相同SLRB ID和UE ID的链路作为上行重复传输路径。
  18. 根据权利要求15所述的方法,其中,所述通过用户面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,包括:
    通过用户面数据头部携带的终端标识UE ID以及承载标识RB ID,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网 络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
  19. 根据权利要求18所述的方法,其中,对于上行,所述RB ID为SLRB ID。
  20. 根据权利要求13所述的方法,其中,接收终端发送的重复数据之后,所述方法还包括:
    将所述重复数据中归属于相同承载的数据进行重复检测和重排序。
  21. 根据权利要求13所述的方法,还包括:
    通过以下方式之一,发送重复数据至终端:
    N个中继节点,N≥2,且N为正整数;
    所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
  22. 一种终端,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序;其中,所述收发机用于:
    通过以下方式之一,将重复数据发送至网络设备:
    N个中继节点,N≥2,且N为正整数;
    所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
  23. 根据权利要求22所述的终端,其中,所述处理器用于读取所述存储器存储的程序,执行下列过程:
    在目标承载需要配置或者激活重复传输的情况下,选择T个中继节点,T=N或M;
    通过所述T个中继节点,分别与所述网络设备建立中继连接;
    建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,所述第一关联关系用于指示所述目标承载通过所述T条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述T条中继链路传输相同的数据;
    对所述目标承载的待传输数据包进行重复处理,得到重复数据。
  24. 一种终端,包括:
    第一发送模块,用于通过以下方式之一,将重复数据发送至网络设备:
    N个中继节点,N≥2,且N为正整数;
    所述终端与网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
  25. 根据权利要求24所述的终端,其中,所述N个中继节点为同一类型的中继节点,且归属于同一服务小区或服务主节点。
  26. 根据权利要求24所述的终端,还包括:
    选择模块,用于在目标承载需要配置或者激活重复传输的情况下,选择T个中继节点,T=N或M;
    中继连接建立模块,用于通过所述T个中继节点,分别与所述网络设备建立中继连接;
    第一关联关系建立模块,用于建立由所述T个中继节点形成的T条中继链路之间的第一关联关系,或者,建立所述终端与网络设备之间的空中接口以及由所述T个中继节点形成的T条中继链路之间的第二关联关系,所述第一关联关系用于指示所述目标承载通过所述T条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述T条中继链路传输相同的数据;
    重复处理模块,用于对所述目标承载的待传输数据包进行重复处理,得到重复数据。
  27. 根据权利要求26所述的终端,还包括:
    第一选择单元,用于在一次中继选择过程中同时选择T个中继节点;或者,
    第二选择单元,用于通过多次中继选择过程,选择出T个中继节点。
  28. 一种网络设备,包括:收发机、存储器、处理器及存储在存储器上并可在处理器上运行的程序,其中,所述收发机用于:
    通过以下方式之一,接收终端发送的重复数据:
    N个中继节点,N≥2,且N为正整数;
    所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1, 且M为正整数。
  29. 根据权利要求28所述的网络设备,其中,所述处理器用于读取所述存储器中的程序,执行下列过程:
    在所述网络设备与所述终端建立中继连接之后,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,所述第一关联关系用于指示目标承载通过所述多条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述多条中继链路传输相同的数据。
  30. 根据权利要求28所述的网络设备,其中,所述处理器还用于:
    将所述重复数据中归属于相同承载的数据进行重复检测和重排序。
  31. 一种网络设备,包括:
    第一接收模块,用于通过以下方式之一,接收终端发送的重复数据:
    N个中继节点,N≥2,且N为正整数;
    所述终端与所述网络设备之间的空中接口以及M个中继节点,M≥1,且M为正整数。
  32. 根据权利要求31所述的网络设备,还包括:第二关联建立模块,用于在所述网络设备与所述终端建立中继连接之后,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系,所述第一关联关系用于指示目标承载通过所述多条中继链路传输相同的数据,所述第二关联关系用于指示所述目标承载通过所述空中接口以及所述多条中继链路传输相同的数据。
  33. 根据权利要求32所述的网络设备,其中,所述第二关联建立模块,包括:
    第三关系建立单元,用于通过控制面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系;或者;
    第四关系建立单元,用于通过用户面信令过程,建立由中继连接所形成的多条中继链路之间的第一关联关系,或者,建立所述网络设备与所述终端之间的空中接口以及由中继连接所形成的多条中继链路之间的第二关联关系。
  34. 根据权利要求33所述的网络设备,其中,所述第三关系建立单元,用于:
    对每条中继链路记录以下信息中的至少一项:
    空中接口无线承载标识Uu RB ID;
    所述中继链路对应的空中接口逻辑信道标识Uu LCID;
    中继终端标识Relay UE ID;
    终端标识UE ID;
    源标识Source L2 ID;
    目的标识destination L2 ID;
    逻辑信道标识LCID;
    直接通信接口无线承载标识SLRB ID。
  35. 一种计算机可读存储介质,其上存储有计算机程序,其中,该计算机程序被处理器执行时实现如权利要求1至12中任一项所述的信息传输方法的步骤,或者,如权利要求13至21中任一项所述的信息传输方法的步骤。
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