WO2022082534A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

Info

Publication number
WO2022082534A1
WO2022082534A1 PCT/CN2020/122596 CN2020122596W WO2022082534A1 WO 2022082534 A1 WO2022082534 A1 WO 2022082534A1 CN 2020122596 W CN2020122596 W CN 2020122596W WO 2022082534 A1 WO2022082534 A1 WO 2022082534A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal device
network device
bearer
identifier
configuration
Prior art date
Application number
PCT/CN2020/122596
Other languages
English (en)
French (fr)
Inventor
王南鑫
彭文杰
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2020/122596 priority Critical patent/WO2022082534A1/zh
Publication of WO2022082534A1 publication Critical patent/WO2022082534A1/zh

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/12Setup of transport tunnels

Definitions

  • the present application relates to the field of communication, and more particularly, to a communication method and apparatus.
  • the base station adopts centralized unit (CU) and distributed unit (DU) independently.
  • the deployment method is to deploy some functions of the base station in one CU, and deploy the remaining functions in the DU, and multiple DUs share one CU, which saves costs on the one hand, and facilitates network expansion on the other hand.
  • CU and DU can be segmented according to the protocol stack.
  • RRC radio resource control
  • SDAP service data adaptation protocol
  • Packet data packet data convergence protocol
  • the convergence protocol (PDCP) layer is deployed in the CU, and the rest of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical layer (PHY) are deployed in the DU.
  • RRC radio resource control
  • SDAP service data adaptation protocol
  • PHY physical layer
  • 5G technology introduces device-to-device (D2D) communication and cooperative communication between user equipment (UE), that is, operators can Deploy a relay device that can assist other remote devices to transfer data, thereby improving network coverage.
  • D2D device-to-device
  • UE user equipment
  • CU-DU-based architecture how to implement the DU and the relay device to correctly forward the message of the remote device according to the instruction of the CU is a problem currently faced.
  • the present application provides a communication method, which can ensure that the network device and the relay device can correctly forward the message of the terminal device.
  • a communication method comprising: a first network device receiving a first request message sent by a second network device, where the first request message is used to request the first network device to modify the information of the first terminal device context, the first request message includes the bearer identification of the first terminal device, the bearer identification of the second terminal device, and the identification of the second terminal device, and the bearer identification of the first terminal device is the first terminal device.
  • the bearer identification between the terminal device and the second network device is the bearer identification between the second terminal device and the second network device;
  • the first network device Send a first response message to the second network device, where the first response message includes a first radio link control RLC bearer configuration, and the first RLC bearer configuration is used between the first terminal device and the first terminal device.
  • the message of the second terminal device is transmitted between a network device, and the first RLC bearer configuration has an associated relationship with the bearer identifier of the first terminal device.
  • the method further includes: the first network device transmits data according to the association relationship between the bearer identifier of the second terminal device and the first RLC bearer configuration message of the second terminal device.
  • the first RLC bearer configuration, the bearer identifier of the first terminal device, and the bearer identifier of the second terminal have an associated relationship.
  • the method further includes: the first network device determining an association relationship between the first RLC bearer configuration and the second RLC bearer configuration, and the second RLC bearer configuration A bearer configuration configured for transmitting the second terminal device message between the second terminal device and the first terminal device, the second RLC bearer configuration and the bearer identity of the second terminal device have connection relation.
  • the bearer identifier of the first terminal device includes a signaling radio bearer SRB identifier of the first terminal device and/or a data radio bearer DRB identifier of the first terminal device.
  • the bearer identifier of the second terminal device includes the SRB identifier of the second terminal device and/or the DRB identifier of the second terminal device.
  • the SRB identifier of the first terminal device and the SRB identifier of the second terminal device have an association relationship.
  • the DRB identifier of the first terminal device and the DRB identifier of the second terminal device have an association relationship.
  • the method before the first network device receives the first request message sent by the second network device, the method further includes: the first network device sends the first request message to the first network device.
  • the second network device sends a first transmission message, where the first transmission message is used to establish a first F1 logical connection between the second network device and the first network device for the second terminal device, and the second A transmission message includes the identity of the first terminal device and the first configuration of the second RLC bearer configuration.
  • the method further includes: the first network device receives the first request message.
  • a second request message sent by two network devices the second request message is used to request the first network device to establish the context of the second terminal device, and the second request message includes the bearer of the second terminal device identification; the first network device sends a second response message to the second network device, where the second response message includes the second configuration in the second RLC bearer configuration.
  • the method further includes: the first network device receives the first request message.
  • a third request message sent by two network devices the third request message is used to request the first network device to modify the context of the second terminal device, and the third request message includes the bearer of the second terminal device identification; the first network device sends a third response message to the second network device, where the third response message includes the second configuration in the second RLC bearer configuration.
  • the method before the first network device receives the first request message sent by the second network device, the method further includes: the first network device passes the second F1 The logical connection sends a second transmission message to the second network device, and the second F1 logical connection is the connection channel of the first terminal device between the first network device and the second network device, so The second transmission message includes the identity of the second terminal device and the first configuration in the second RLC bearer configuration.
  • the first response message further includes a second configuration in the second RLC bearer configuration.
  • the first configuration in the second RLC bearer configuration is an RLC bearer configuration that has an associated relationship with the SRB1 identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the DRB identifier of the second terminal device.
  • the second terminal device identifier includes an air interface identifier or an interface identifier
  • the air interface identifier includes a cell wireless network temporary identifier allocated by the first network device
  • the interface The identification includes the F1 interface user identification.
  • the method further includes: the first network device sends the first request message to the first network device.
  • the second network device sends an F1 connection establishment request message; the first network device receives the F1 connection establishment response message sent by the second network device, and the F1 connection establishment response message includes the system message and the sidelink of the second network device.
  • a radio bearer configuration of the sidelink is configured for the first network device to send in a system broadcast message.
  • a communication method comprising: a second network device sending a first request message to a first network device, where the first request message is used to request the first network device to modify the context of the first terminal device , the first request message includes the bearer identification of the first terminal device, the bearer identification of the second terminal device, and the identification of the second terminal device, and the bearer identification of the first terminal device is the first terminal
  • the bearer identification between the device and the second network device, the bearer identification of the second terminal device is the bearer identification between the second terminal device and the second network device;
  • the second network device receives A first response message sent by the first network device, where the first response message includes a first radio link control RLC bearer configuration, and the first RLC bearer configuration is used between the first terminal device and the first terminal device.
  • the message of the second terminal device is transmitted between a network device, and the first RLC bearer configuration has an associated relationship with the bearer identifier of the first terminal device.
  • the first RLC bearer configuration, the bearer identifier of the first terminal device, and the bearer identifier of the second terminal have an associated relationship.
  • the method further includes: the second network device determining an association relationship between the first RLC bearer configuration and the second RLC bearer configuration, and the second RLC bearer configuration A bearer configuration configured for transmitting the second terminal device message between the second terminal device and the first terminal device, the second RLC bearer configuration and the bearer identity of the second terminal device have connection relation.
  • the bearer identifier of the first terminal device includes a signaling radio bearer SRB identifier of the first terminal device and/or a data radio bearer DRB identifier of the first terminal device.
  • the bearer identifier of the second terminal device includes the SRB identifier of the second terminal device and/or the DRB identifier of the second terminal device.
  • the SRB identifier of the first terminal device and the SRB identifier of the second terminal device have an association relationship.
  • the DRB identifier of the first terminal device and the DRB identifier of the second terminal device have an association relationship.
  • the method before the second network device sends the first request message to the first network device, the method further includes: the second network device receives the first request message.
  • a first transmission message sent by a network device the first transmission message is used to establish a first F1 logical connection between the second network device and the first network device for the second terminal device, and the first transmission message is used to establish a first F1 logical connection between the second network device and the first network device.
  • a transmission message includes the identity of the first terminal device and the first configuration of the second RLC bearer configuration.
  • the method further includes: the second network device sends a second request message to the first network device, where the second request message is used to request the The first network device establishes the context of the second terminal device, and the second request message includes the bearer identifier of the second terminal device; the second network device receives the second response message sent by the first network device , the second response message includes the second configuration in the second RLC bearer configuration.
  • the method further includes: the second network device sends a third request message to the first network device, where the third request message is used to request the The first network device modifies the context of the second terminal device, and the third request message includes the bearer identifier of the second terminal device; the second network device receives the third response message sent by the first network device , the third response message includes the second configuration in the second RLC bearer configuration.
  • the method further includes: the second network device uses a second F1 logic
  • the connection receives the second transmission message sent by the first network device, the second F1 logical connection is the connection channel of the first terminal device between the first network device and the second network device, so The second transmission message includes the identity of the second terminal device and the first configuration in the second RLC bearer configuration.
  • the first response message further includes a second configuration in the second RLC bearer configuration.
  • the first configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB1 identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the DRB identifier of the second terminal device.
  • the method further includes: the second network device sends a first message to the first terminal device, where the first message includes the first terminal device bearer identifier, the first RLC bearer configuration and the second RLC bearer configuration.
  • the method further includes: the second network device sends a second message to the second terminal device, where the second message includes the information of the second terminal device. Bearer identification and second RLC bearer configuration.
  • the second terminal device identification includes an air interface identification or an interface identification
  • the air interface identification includes a cell wireless network temporary identification allocated by the first network device
  • the interface identification The identification includes the F1 interface user identification.
  • the method further includes: the second network device receives the first request message.
  • a communication method comprising: a first network device sending a first request message to a second network device, where the first request message is used to request the second network device to modify the context of the first terminal device , the first request message includes the bearer identification of the first terminal device, the identification of the second terminal device, the bearer identification of the second terminal device, and the first RLC bearer configuration, the first RLC
  • the bearer configuration is used to transmit the message of the second terminal device between the first terminal device and the first network device, and the first RLC bearer configuration is associated with the bearer identifier of the first terminal device , the bearer identification of the first terminal device is the bearer identification between the first terminal device and the second network device, and the bearer identification of the second terminal device is the second terminal device and the second network device. Bearer identification between two network devices; the first network device receives the first response message sent by the second network device.
  • the method further includes: transmitting by the first network device according to the association relationship between the bearer identifier of the second terminal device and the first RLC bearer configuration message of the second terminal device.
  • the method further includes: receiving, by the first network device, the bearer identifier of the first terminal device sent by the second network device.
  • the first RLC bearer configuration, the bearer identifier of the first terminal device, and the bearer identifier of the second terminal have an associated relationship.
  • the method further includes: the first network device determining an association relationship between the first RLC bearer configuration and the second RLC bearer configuration, and the second RLC bearer configuration A bearer configuration configured for transmitting the second terminal device message between the second terminal device and the first terminal device, the second RLC bearer configuration and the bearer identity of the second terminal device have connection relation.
  • the bearer identifier of the first terminal device includes a signaling radio bearer SRB identifier of the first terminal device and/or a data radio bearer DRB identifier of the first terminal device.
  • the bearer identifier of the second terminal device includes the SRB identifier of the second terminal device and/or the DRB identifier of the second terminal device.
  • the SRB identifier of the first terminal device and the SRB identifier of the second terminal device have an association relationship.
  • the DRB identifier of the first terminal device and the DRB identifier of the second terminal device have an association relationship.
  • the method further includes: the first network device sends a first transmission message to the second network device, where the first transmission message is used for the
  • the second terminal device establishes a first F1 logical connection between the second network device and the first network device, and the first transmission message includes the identifier of the first terminal device and the second RLC bearer configuration. the first configuration.
  • the method further includes: the first network device receives the second network device A second request message sent by a network device, where the second request message is used to request the first network device to establish the context of the second terminal device, and the second request message includes the bearer identifier of the second terminal device ; the first network device sends a second response message to the second network device, where the second response message includes the second configuration in the second RLC bearer configuration.
  • the method further includes: the first network device receives the second network device A third request message sent by a network device, where the third request message is used to request the first network device to modify the context of the second terminal device, and the third request message includes the bearer identifier of the second terminal device ; the first network device sends a third response message to the second network device, where the third response message includes the second configuration in the second RLC bearer configuration.
  • the method further includes: the first network device sends a second transmission message to the second network device through a second F1 logical connection, and the second F1
  • the logical connection is a connection channel of the first terminal device between the first network device and the second network device, and the second transmission message includes the identifier of the second terminal device and the second RLC bearer configuration in the first configuration.
  • the first configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB1 identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the DRB identifier of the second terminal device.
  • the second terminal device identification includes an air interface identification or an interface identification
  • the air interface identification includes a cell wireless network temporary identification allocated by the first network device
  • the interface identification The identification includes the F1 interface user identification.
  • the method further includes: the first network device sends the second network device Sending an F1 connection establishment request message; the first network device receives an F1 connection establishment response message sent by the second network device, where the F1 connection establishment response message includes a system message and a sidelink radio bearer of the second network device configuration, the sidelink radio bearer is configured for the first network device to send in a system broadcast message.
  • a communication method comprising: a second network device receiving a first request message sent by a first network device, where the first request message is used to request the second network device to modify the information of the first terminal device context, the first request message includes the bearer identity of the first terminal device, the identity of the second terminal device, the bearer identity of the second terminal device, and the first RLC bearer configuration, the first An RLC bearer configuration is used to transmit messages of the second terminal device between the first terminal device and the first network device, and the first RLC bearer configuration is associated with a bearer identity of the first terminal device
  • the bearer identification of the first terminal device is the bearer identification between the first terminal device and the second network device, and the bearer identification of the second terminal device is the second terminal device and the second network device. Bearer identification between second network devices; the second terminal device sends a first response message to the first terminal device.
  • the method further includes: sending, by the second network device, the bearer identifier of the first terminal device to the first network device.
  • the method further includes: the first RLC bearer configuration, the bearer identifier of the first terminal device and the bearer identifier of the second terminal have an association relationship.
  • the method further includes: the second network device determines an association relationship between the first RLC bearer configuration and the second RLC bearer configuration, and the second RLC bearer configuration A bearer configuration configured for transmitting the second terminal device message between the second terminal device and the first terminal device, the second RLC bearer configuration and the bearer identity of the second terminal device have connection relation.
  • the bearer identifier of the first terminal device includes a signaling radio bearer SRB identifier of the first terminal device and/or a data radio bearer DRB identifier of the first terminal device.
  • the bearer identifier of the second terminal device includes the SRB identifier of the second terminal device and/or the DRB identifier of the second terminal device.
  • the SRB identifier of the first terminal device and the SRB identifier of the second terminal device have an association relationship.
  • the DRB identifier of the first terminal device and the DRB identifier of the second terminal device have an association relationship.
  • the method further includes: receiving, by the second network device, a first transmission message sent by the first network device, where the first transmission message is used to
  • the second terminal device establishes a first F1 logical connection between the first network device and the second network device, and the first transmission message includes the identifier of the first terminal device and the second RLC bearer configuration. the first configuration.
  • the method before the second network device receives the first request message sent by the first network device, the method further includes: the second network device sends a request to the first network device The device sends a second request message, where the second request message is used to request the first network device to establish the context of the second terminal device, and the second request message includes the bearer identifier of the second terminal device; The second network device receives a second response message sent by the first network device, where the second response message includes the second configuration in the second RLC bearer configuration.
  • the method before the second network device receives the first request message sent by the first network device, the method further includes: the second network device sends a request to the first network device The device sends a third request message, where the third request message is used to request the first network device to establish the context of the second terminal device, and the third request message includes the bearer identifier of the second terminal device; The second network device receives a third response message sent by the first network device, where the third response message includes the second configuration in the second RLC bearer configuration.
  • the method further includes: the second network device receives a second transmission message sent by the first network device through a second F1 logical connection, the second The F1 logical connection is the connection channel of the first terminal device between the first network device and the second network device, and the second transmission message includes the identifier of the second terminal device and the second RLC bearer The first configuration in the configuration.
  • the first configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB1 identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the DRB identifier of the second terminal device.
  • the method further includes: the second network device sends a first message to the first terminal device, where the first message includes the first terminal device bearer identifier, the first RLC bearer configuration and the second RLC bearer configuration.
  • the method further includes: the second network device sends a second message to the second terminal device, where the second message includes the information of the second terminal device. Bearer identification and second RLC bearer configuration.
  • the second terminal device identification includes an air interface identification or an interface identification
  • the air interface identification includes a cell wireless network temporary identification allocated by the first network device
  • the interface identification The identification includes the F1 interface user identification.
  • the method before the second network device receives the first request message sent by the first network device, the method further includes: the second network device receives the first request message.
  • a radio bearer configuration of the sidelink is configured for the first network device to send in a system broadcast message.
  • a communication apparatus comprising: a transceiver unit configured to receive a first request message sent by a second network device, where the first request message is used to request the first network device to modify the first terminal device
  • the first request message includes the bearer identification of the first terminal device, the bearer identification of the second terminal device, and the identification of the second terminal device, and the bearer identification of the first terminal device is the first terminal device.
  • the transceiver unit is further configured to send a first response message to the second network device, where the first response message includes a first radio link control RLC bearer configuration, and the first RLC bearer configuration is used in the second network device.
  • the message of the second terminal device is transmitted between a terminal device and the first network device, and the first RLC bearer configuration has an associated relationship with the bearer identifier of the first terminal device.
  • the transceiver unit is further configured to transmit the information based on the association relationship between the bearer identifier of the second terminal device and the first RLC bearer configuration determined by the processing unit. the message of the second terminal device.
  • the first RLC bearer configuration, the bearer identification of the first terminal device, and the bearer identification of the second terminal have an associated relationship.
  • the apparatus further includes: a processing unit configured to determine an association relationship between the first RLC bearer configuration and the second RLC bearer configuration, the second RLC bearer configuration For a bearer configuration for transmitting a second terminal device message between the second terminal device and the first terminal device, the second RLC bearer configuration has an associated relationship with a bearer identifier of the second terminal device.
  • the bearer identifier of the first terminal device includes a signaling radio bearer SRB identifier of the first terminal device and/or a data radio bearer DRB identifier of the first terminal device.
  • the bearer identifier of the second terminal device includes the SRB identifier of the second terminal device and/or the DRB identifier of the second terminal device.
  • the SRB identifier of the first terminal device and the SRB identifier of the second terminal device have an association relationship.
  • the DRB identifier of the first terminal device and the DRB identifier of the second terminal device have an association relationship.
  • the transceiver unit is further configured to send a first transmission message to the second network device, where the first transmission message is used to establish a setup for the second terminal device
  • the first transmission message includes the identity of the first terminal device and the first configuration in the second RLC bearer configuration.
  • the transceiver unit is further configured to receive a second request message sent by the second network device, where the second request message is used to request the first network device establishing the context of the second terminal device, the second request message includes the bearer identifier of the second terminal device; the transceiver unit is further configured to send a second response message to the second network device, the first The second response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit is further configured to receive a third request message sent by the second network device, where the third request message is used to request the first network device Modifying the context of the second terminal device, the third request message includes the bearer identifier of the second terminal device; the transceiver unit is further configured to send a third response message to the second network device, the first The three-response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit is further configured to send a second transmission message to the second network device through a second F1 logical connection, where the second F1 logical connection is the a connection channel between the first terminal device and the second network device, and the second transmission message includes the identifier of the second terminal device and the first configuration in the second RLC bearer configuration .
  • the first response message further includes a second configuration in the second RLC bearer configuration.
  • the first configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB1 identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the DRB identifier of the second terminal device.
  • the identifier of the second terminal device includes an air interface identifier or an interface identifier
  • the air interface identifier includes a cell wireless network temporary identifier allocated by the first network device
  • the The interface identification includes the F1 interface user identification.
  • the transceiver unit is further configured to send an F1 connection establishment request message to the second network device; the transceiver unit is further configured to receive a message sent by the second network device F1 connection establishment response message, the F1 connection establishment response message includes the system message of the second network device and the sidelink radio bearer configuration, the sidelink radio bearer configuration is used for the first network device in the system Sent in a broadcast message.
  • a communication apparatus comprising: a transceiver unit, configured to send a first request message to a first network device, where the first request message is used to request the first network device to modify the information of the first terminal device context, the first request message includes the bearer identification of the first terminal device, the bearer identification of the second terminal device, and the identification of the second terminal device, and the bearer identification of the first terminal device is the first terminal device. a bearer identification between the terminal device and the second network device, where the bearer identification of the second terminal device is the bearer identification between the second terminal device and the second network device;
  • the transceiver unit is further configured to receive a first response message sent by the first network device, where the first response message includes a first radio link control RLC bearer configuration, and the first RLC bearer configuration is used in the The message of the second terminal device is transmitted between the first terminal device and the first network device, and the first RLC bearer configuration has an associated relationship with the bearer identifier of the first terminal device.
  • the first RLC bearer configuration, the bearer identifier of the first terminal device, and the bearer identifier of the second terminal device have an associated relationship.
  • the apparatus further includes: a processing unit configured to determine the association relationship between the first RLC bearer configuration and the second RLC bearer configuration, the second RLC bearer configuration is a bearer configuration for transmitting the second terminal equipment message between the second terminal equipment and the first terminal equipment, the second RLC bearer configuration is associated with the bearer identity of the second terminal equipment relation.
  • the bearer identifier of the first terminal device includes a signaling radio bearer SRB identifier of the first terminal device and/or a data radio bearer DRB identifier of the first terminal device.
  • the bearer identifier of the second terminal device includes the SRB identifier of the second terminal device and/or the DRB identifier of the second terminal device.
  • the SRB identifier of the first terminal device and the SRB identifier of the second terminal device have an association relationship.
  • the DRB identifier of the first terminal device and the DRB identifier of the second terminal device have an association relationship.
  • the transceiver unit is further configured to receive a first transmission message sent by the first network device, where the first transmission message is used for the second terminal device A first F1 logical connection between the second network device and the first network device is established, and the first transmission message includes the identity of the first terminal device and the first configuration in the second RLC bearer configuration.
  • the transceiver unit is further configured to send a second request message to the first network device, where the second request message is used to request the first network device to establish The context of the second terminal device, the second request message includes the bearer identifier of the second terminal device; the transceiver unit is further configured to receive a second response message sent by the first network device, the first The second response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit is further configured to send a third request message to the first network device, where the third request message is used to request the first network device to modify The context of the second terminal device, the third request message includes the bearer identifier of the second terminal device; the transceiver unit is further configured to receive a third response message sent by the first network device, the first The three-response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit is further configured to receive a second transmission message sent by the first network device through a second F1 logical connection, where the second F1 logical connection is the The connection channel of the first terminal device between the first network device and the second network device, and the second transmission message includes the identifier of the second terminal device and the first RLC bearer configuration. configuration.
  • the first response message further includes a second configuration in the second RLC bearer configuration.
  • the first configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB1 identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the DRB identifier of the second terminal device.
  • the transceiver unit is further configured to send a first message to the first terminal device, where the first message includes a bearer identifier of the first terminal device, and the Describe the first RLC bearer configuration and the second RLC bearer configuration.
  • the transceiver unit is further configured to send a second message to the second terminal device, where the second message includes the bearer identifier of the second terminal device and the first Two RLC bearer configuration.
  • the identifier of the second terminal device includes an air interface identifier or an interface identifier
  • the air interface identifier includes a cell wireless network temporary identifier allocated by the first network device
  • the The interface identification includes the F1 interface user identification.
  • the transceiver unit is further configured to receive an F1 connection establishment request message sent by the first network device; the transceiver unit is further configured to send a message to the first network device Send an F1 connection establishment response message, where the F1 connection establishment response message includes a system message of the second network device and a sidelink radio bearer configuration, where the sidelink radio bearer configuration is used by the first network device in the system Sent in a broadcast message.
  • a communication apparatus comprising: a transceiver unit, configured to send a first request message to a second network device, where the first request message is used to request the second network device to modify the information of the first terminal device context, the first request message includes the bearer identifier of the first terminal device, the identifier of the second terminal device, the bearer identifier of the second terminal device, and the first RLC bearer configuration, the first An RLC bearer configuration is used to transmit messages of the second terminal device between the first terminal device and the first network device, and the first RLC bearer configuration is associated with a bearer identity of the first terminal device
  • the bearer identification of the first terminal device is the bearer identification between the first terminal device and the second network device, and the bearer identification of the second terminal device is the second terminal device and the second network device. Bearer identifiers between second network devices; the transceiver unit is further configured to receive a first response message sent by the second network device.
  • the transceiver unit is further configured to determine an association relationship between the bearer identifier of the second terminal device and the first RLC bearer configuration determined by the processing unit The message of the second terminal device is transmitted.
  • the transceiver unit is further configured to receive the bearer identifier of the first remote device sent by the second network device.
  • the first RLC bearer configuration, the bearer identifier of the first terminal device, and the bearer identifier of the second terminal have an associated relationship.
  • the apparatus further includes: a processing unit configured to determine the association relationship between the first RLC bearer configuration and the second RLC bearer configuration, the second RLC bearer configuration is a bearer configuration for transmitting the second terminal equipment message between the second terminal equipment and the first terminal equipment, the second RLC bearer configuration is associated with the bearer identity of the second terminal equipment relation.
  • the bearer identifier of the first terminal device includes a signaling radio bearer SRB identifier of the first terminal device and/or a data radio bearer DRB identifier of the first terminal device.
  • the bearer identifier of the second terminal device includes the SRB identifier of the second terminal device and/or the DRB identifier of the second terminal device.
  • the SRB identifier of the first terminal device and the SRB identifier of the second terminal device have an association relationship.
  • the DRB identifier of the first terminal device and the DRB identifier of the second terminal device have an association relationship.
  • the transceiver unit is further configured to send a first transmission message to the second network device, where the first transmission message is used to establish a setup for the second terminal device
  • the first transmission message includes the identity of the first terminal device and the first configuration of the second RLC bearer configuration.
  • the transceiver unit is further configured to receive a second request message sent by the second network device, where the second request message is used to request the first network device establishing the context of the second terminal device, the second request message includes the bearer identifier of the second terminal device; the transceiver unit is further configured to send a second response message to the second network device, the first The second response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit is further configured to receive a third request message sent by the second network device, where the third request message is used to request the first network device modifying the context of the second terminal device, and the third request message includes the bearer identifier of the second terminal device;
  • the transceiver unit is further configured to send a third response message to the second network device, where the third response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit is further configured to send a second transmission message to the second network device through a second F1 logical connection, where the second F1 logical connection is the a connection channel between the first terminal device and the second network device, and the second transmission message includes the identifier of the second terminal device and the first configuration in the second RLC bearer configuration .
  • the first configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB1 identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the DRB identifier of the second terminal device.
  • the identifier of the second terminal device includes an air interface identifier or an interface identifier
  • the air interface identifier includes a cell wireless network temporary identifier allocated by the first network device
  • the The interface identification includes the F1 interface user identification.
  • the transceiver unit is further configured to send an F1 connection establishment request message to the second network device; the transceiver unit is further configured to receive a message sent by the second network device F1 connection establishment response message, the F1 connection establishment response message includes the system message of the second network device and the sidelink radio bearer configuration, the sidelink radio bearer configuration is used for the first network device in the system Sent in a broadcast message.
  • a communication apparatus comprising: a transceiver unit, where the transceiver unit is configured to receive a first request message sent by a first network device, where the first request message is used to request the second network device to modify The context of the first terminal device, the first request message includes the bearer identifier of the first terminal device, the identifier of the second terminal device, the bearer identifier of the second terminal device, and the first RLC bearer configuration , the first RLC bearer configuration is used to transmit messages of the second terminal device between the first terminal device and the first network device, and the first RLC bearer configuration is configured with the first terminal device
  • the bearer identification of the first terminal device has an association relationship, the bearer identification of the first terminal device is the bearer identification between the first terminal device and the second network device, and the bearer identification of the second terminal device is the second network device.
  • the bearer identification between the terminal device and the second network device; the transceiver unit is further configured to send a first response message to the first terminal device.
  • the transceiver unit is further configured to send the bearer identifier of the first terminal device to the first network device.
  • the apparatus further includes: a processing unit configured to determine an association relationship between the first RLC bearer configuration and the second RLC bearer configuration, the second RLC bearer configuration is a bearer configuration for transmitting the second terminal equipment message between the second terminal equipment and the first terminal equipment, the second RLC bearer configuration is associated with the bearer identity of the second terminal equipment relation.
  • the bearer identifier of the first terminal device includes a signaling radio bearer SRB identifier of the first terminal device and/or a data radio bearer DRB identifier of the first terminal device.
  • the bearer identifier of the second terminal device includes the SRB identifier of the second terminal device and/or the DRB identifier of the second terminal device.
  • the SRB identifier of the first terminal device and the SRB identifier of the second terminal device have an association relationship.
  • the DRB identifier of the first terminal device and the DRB identifier of the second terminal device have an association relationship.
  • the transceiver unit is further configured to receive a first transmission message sent by the first network device, where the first transmission message is used for the second terminal device A first F1 logical connection between the first network device and the second network device is established, and the first transmission message includes the identity of the first terminal device and the first configuration in the second RLC bearer configuration.
  • the transceiver unit is further configured to send a second request message to the first network device, where the second request message is used to request the first network device to establish the context of the second terminal device, and the second request message includes the bearer identifier of the second terminal device;
  • the transceiver unit is further configured to receive a second response message sent by the first network device, where the second response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit is further configured to send a third request message to the first network device, where the third request message is used to request the first network device to establish the context of the second terminal device, and the third request message includes the bearer identifier of the second terminal device;
  • the transceiver unit is further configured to receive a third response message sent by the first network device, where the third response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit is further configured to receive a second transmission message sent by the first network device through a second F1 logical connection, where the second F1 logical connection is the The connection channel of the first terminal device between the first network device and the second network device, and the second transmission message includes the identifier of the second terminal device and the first RLC bearer configuration. configuration.
  • the first configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB1 identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the DRB identifier of the second terminal device.
  • the transceiver unit is further configured to send a first message to the first terminal device, where the first message includes the bearer identifier of the first terminal device, and the Describe the first RLC bearer configuration and the second RLC bearer configuration.
  • the transceiver unit is further configured to send a second message to the second terminal device, where the second message includes the bearer identifier of the second terminal device and the first Two RLC bearer configuration.
  • the identifier of the second terminal device includes an air interface identifier or an interface identifier
  • the air interface identifier includes a cell wireless network temporary identifier allocated by the first network device
  • the The interface identification includes the F1 interface user identification.
  • the transceiver unit is further configured to receive an F1 connection establishment request message sent by the first network device;
  • the transceiver unit is further configured to send an F1 connection establishment response message to the first network device, where the F1 connection establishment response message includes a system message of the second network device and a sidelink radio bearer configuration, the sidelink The channel radio bearer is configured for the first network device to send in the system broadcast message.
  • a communication device comprising a memory and a processor, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the communication device is used to execute the above A first aspect and methods in various implementations of the first aspect.
  • a communication device comprising a memory and a processor, the memory is used for storing a computer program, and the processor is used for calling and running the computer program from the memory, so that the communication device is used for executing the above
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program from the memory, so that the communication device is used for executing the above
  • a communication apparatus comprising a memory and a processor, the memory is used for storing a computer program, the processor is used for calling and running the computer program from the memory, so that the communication apparatus is used for executing
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program from the memory, so that the communication apparatus is used for executing
  • a twelfth aspect provides a communication apparatus, comprising a memory and a processor, the memory for storing a computer program, the processor for invoking and running the computer program from the memory, so that the communication apparatus is used for executing
  • a communication apparatus comprising a memory and a processor, the memory for storing a computer program, the processor for invoking and running the computer program from the memory, so that the communication apparatus is used for executing
  • a computer storage medium stores a computer program (also referred to as code, or instructions), when it runs on a computer, causing the computer to execute the above-mentioned first aspect and the first A method in any of the possible implementations of an aspect.
  • a computer program also referred to as code, or instructions
  • a computer storage medium stores a computer program (also referred to as code, or instructions), when it runs on a computer, causing the computer to execute the above-mentioned second aspect and the second A method in any of the possible implementations of an aspect.
  • a computer program also referred to as code, or instructions
  • a computer storage medium stores a computer program (also referred to as code, or instruction), when it runs on a computer, causing the computer to execute the third aspect and the third A method in any of the possible implementations of an aspect.
  • a computer program also referred to as code, or instruction
  • a sixteenth aspect provides a computer storage medium, the computer storage medium stores a computer program (also called code, or instruction), when it is run on a computer, so that the computer executes the fourth aspect and the fourth aspect A method in any of the possible implementations of an aspect.
  • a computer program also called code, or instruction
  • a seventeenth aspect provides a communication system, including the communication device of the fifth aspect and the communication device of the fourth aspect.
  • a communication system including the communication device according to the seventh aspect and the communication device according to the eighth aspect.
  • the communication method and communication device of the embodiments of the present application can carry the bearer identifier of the first terminal device and the bearer identifier of the second terminal device in the information exchange between the first network device and the second network device, thereby enabling The association relationship between the first RLC bearer configuration and the second RLC bearer configuration is determined, so that the message of the terminal device at the receiving end can be correctly forwarded.
  • FIG. 1 is a schematic diagram of a scenario provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a base station provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a possible user plane protocol stack provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a possible control plane protocol stack provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 7 is another schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 8 is still another schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 9 is another schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 10 is still another schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 11 is another schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 12 is another schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 14 is still another schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 1 shows a schematic architecture diagram of a scenario in which an embodiment of the present application is applied.
  • the communication system 100 may include a network device 101, a first terminal device 102 and a second terminal device 103, wherein the first terminal device 102 provides relay services for the second terminal device 103, and the second terminal device 103 103 performs information interaction with the network device 101 through the first terminal device 102, wherein the second terminal device 103 and the first terminal device 102 generally communicate through side links, including but not limited to unicast, multicast or broadcast. Way.
  • the performance of the network system is improved, such as coverage enhancement or network improvement, and on the other hand, indoor user experience can be improved.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code Wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD LTE frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • the terminal device in the embodiments of the present application may refer to user equipment, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device , user agent or user device.
  • the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or future evolved public land mobile networks (PLMN)
  • a terminal device, etc. is not limited in this embodiment of the present application.
  • the network device in this embodiment of the present application may be a device for communicating with terminal devices, and the network device may be a global system of mobile communication (GSM) system or a code division multiple access (code division multiple access) access, CDMA) in the base station (base transceiver station, BTS), can also be a wideband code division multiple access (wideband code division multiple access, WCDMA) system in the base station (nodeb, NB), it can also be the evolution in the LTE system It can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, an in-vehicle device, a The wearable device and the network device in the future 5G network or the network device in the future evolved PLMN network, etc., are not limited in the embodiments of the present application.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • NB base station
  • the network device can be a relay station
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the terminal device may also be a terminal device in an Internet of Things (IoT) system.
  • IoT Internet of Things
  • IoT is an important part of the future development of information technology, and its main technical feature is that items pass through communication technology Connect with the network, so as to realize the intelligent network of human-machine interconnection and interconnection of things.
  • a 5G communication system and a base station in a CU-DU architecture are used as an example for description.
  • FIG. 2 shows a schematic diagram of a communication system to which an embodiment of the present application is applied.
  • a 5G access point is composed of a base station node next generation radio access network (NG-RAN)
  • the NG-RAN node may be a 5G new base station node (generation nodeb, gNB), or an LTE evolved base station node (next generation enodb, ng-eNB).
  • gNB uses the user plane and control plane protocol stack of NR
  • ng-eNB uses evolved universal terrestrial radio access (evolved universal terrestrial radio access, E- UTRA) user plane and control plane protocol stack.
  • E- UTRA evolved universal terrestrial radio access
  • gNB and gNB, ng-eNB and ng-eNB, and gNB and ng-eNB are interconnected through Xn interface.
  • the gNB and ng-eNB are connected to the 5G core network through the NG interface, in which the control plane is connected to the access network and the mobility management function (AMF) through the NG-C interface, and the user plane is connected through the NG-U interface. to the user plane function (UPF) module.
  • AMF mobility management function
  • UPF user plane function
  • the gNB function is reconstructed into two functional entities, CU/DU.
  • the segmentation of CU and DU functions is distinguished according to the real-time characteristics of their processing contents.
  • CU mainly includes non-real-time wireless high-level protocol stack functions, and supports the sinking of some core network functions and the deployment of edge applications, while DU mainly handles physical layer functions and layer 2 protocol stack functions with high real-time requirements.
  • FIG. 3 shows a schematic diagram of a base station to which an embodiment of the present application is applied.
  • the base station can be composed of CU and DU, that is, the functions of the base station in the original access network are split, and some functions of the base station are deployed in one CU, and the remaining functions are deployed in the DU, which is shared by multiple DUs.
  • One CU on the one hand, saves costs, and on the other hand is easy to expand the network.
  • the CU and DU can be segmented according to the protocol stack.
  • One possible way is to deploy the radio resource control (RRC) layer, SDAP layer and packet data convergence protocol (PDCP) layer on the CU.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • RLC radio link control
  • MAC medium access layer
  • physical layer physical, PHY
  • CU and DU are connected through F1 interface
  • CU and CU are connected through Xn interface to realize information exchange between base stations
  • CU represents gNB
  • 5G core network is connected through NG interface to realize base station and core network information exchange between them.
  • the base station adopts a CU-DU architecture, and an adaptation layer exists between the relay UE and the LTE or NR air interface of the base station.
  • the main purpose of the adaptation layer is to carry the identity of the remote UE and the radio bearer (RB) identity of the relay UE, or to carry the identity of the remote UE and the sidelink or PC5 in the process of RRC message transmission or data transmission. mouth identification.
  • the adaptation layer can be deployed in the CU protocol stack or in the DU protocol stack. In this application, an exemplary description is given in the way of deploying the adaptation layer in the protocol stack of the DU.
  • Figure 4 shows a user plane protocol stack of an adaptation layer in DU.
  • the user plane protocol stack of the remote UE includes the PDCP layer between the CU and the relay UE through the PDCP layer.
  • the RLC layer, MAC layer, and PHY layer connected to the PC5 interface
  • the user plane protocol stack of the relay UE includes the RLC layer, MAC layer, and PHY layer connected to the remote UE through the PC5 interface, and the Uu interface to the DU.
  • the user plane protocol stack of the DU includes the adaptation layer, RLC layer, MAC layer, PHY layer, and communication with the CU connected to the relay UE through the Uu interface.
  • the RLC layer, MAC layer, PHY layer of the remote UE and the RLC layer, MAC layer, and PHY layer of the relay UE exchange information through the PC5 interface, and the PDCP layer of the remote UE and the CU establish an end-to-end connection through the Uu interface.
  • the RLC layer, MAC layer, and PHY layer of the relay UE and the RLC layer, MAC layer, and PHY layer of the DU exchange information through the Uu interface.
  • Figure 5 shows a control plane protocol stack of an adaptation layer in a DU.
  • the control plane protocol stack of a remote UE includes a non-access stratum (NAS) between the remote UE and the CU. ), PDCP layer and RRC layer, as well as the RLC layer, MAC layer, and PHY layer connected with the relay UE through the PC5 interface;
  • the control plane protocol stack of the relay UE includes the remote UE through the PC5 interface.
  • the control plane protocol stack of the DU includes the Uu interface connected to the relay UE.
  • Adaptation layer RLC layer, MAC layer, PHY layer, and L1/L2 layer, Stream Control Transmission Protocol/Internet Protocol (Stream Control Transmission Protocol/Internet Protocol, SCTP/IP) layer for information exchange with CU, F1 Application Protocol (F1Application Protocol, F1AP) layer;
  • the control plane protocol stack of CU includes NAS layer, RRC layer, PDCP layer, L1/L2 layer, SCTP/IP layer and F1AP layer.
  • the DU cannot correctly forward the message of the remote UE according to the instruction of the CU. Because when the CU sends the remote UE's context establishment request message to the DU, the request message carries the QoS information and bearer configuration identifier. At this time, the RLC bearer established by the DU according to the CU's request message is between the relay UE and the remote UE. RLC bearer for remote UE between.
  • the downlink RRC transmission message carries the PDCP bearer identifier, but the DU passes the PDCP bearer identifier Only the relevant RLC bearer used between the relay UE and the remote UE can be identified. The DU cannot determine which RLC bearer between the relay UE and the DU is used to transmit the message to the relay UE first. The relevant RLC bearer forwards the message to the terminal UE.
  • both the CU and the DU can determine the communication between the relay UE and the remote UE.
  • the bearer association between the bearer and relay UE and the DU ensures that the DU can correctly transmit the message of the remote UE according to the instruction of the CU.
  • FIG. 6 provides a flowchart of an embodiment of a communication method for this application, and the method specifically includes:
  • the second network device determines the association relationship between the bearer identifier of the first terminal device and the bearer identifier of the second terminal device.
  • the second network device sends a first request message to the first network device.
  • the first network device determines an association relationship between the first RLC bearer configuration and the second RLC bearer configuration.
  • the first network device sends a first response message to the second network device.
  • the second network device determines the association relationship between the first RLC bearer configuration and the second RLC bearer configuration.
  • the second network device can determine which first terminal device the second terminal device uses to provide relay services for the second terminal device , at this time, the second network device needs to determine the association relationship between the bearer identification of the first terminal device and the bearer identification of the second terminal device, and send the association relationship to the first network device, that is, in step 602, the first A network device sends a first request message to a second network device, where the request message carries the identifier of the first terminal device, the bearer identifier of the first terminal device, and the bearer identifier of the second terminal device.
  • the request message is used to request the first network device to modify the context of the first terminal device.
  • a radio bearer consists of a PDCP entity, a radio link control (RLC) entity or a radio link control bearer (RLC bearer) and a logical channel (logical channel). , LC) composition.
  • the configuration of the radio bearer is the configuration of the PDCP entity, the RLC entity and the logical channel of the radio bearer.
  • Radio bearers are divided into signaling radio bearers (signal radio bearer, SRB) and data radio bearers (data radio bearer, DRB).
  • the second network device determines the association relationship between the bearer identifier of the first terminal device and the bearer identifier of the second terminal device.
  • the second network device may request to add a bearer identifier to the first terminal device, and then determine the new The association relationship between the added bearer identifier and the bearer identifier of the second remote device.
  • the second network device may also change the currently existing bearer identification of the first terminal device, and determine the association relationship between the bearer identification and the bearer identification of the second remote device.
  • the bearer identifier in this embodiment of the present application may be a DRB identifier or an SRB identifier.
  • the bearer identification of the first terminal device is the bearer identification between the first terminal device and the second network device, and the bearer identification of the first terminal device may be the SRB identification of the first terminal device, or the first terminal device. the DRB ID.
  • the bearer identification of the second terminal device is the bearer identification between the second terminal device and the second network device, and the bearer identification of the second terminal device may be the SRB identification of the second terminal device or the second terminal device. the DRB ID.
  • association relationship between the bearer identification of the first terminal device and the bearer identification of the second terminal device may be the association relationship between the SRB identification of the first terminal device and the SRB identification of the second terminal device, and/or the first The association relationship between the DRB identifier of the terminal device and the DRB identifier of the second terminal device.
  • the identifier of the first terminal equipment may be an interface identifier or an air interface identifier, for example, the identifier of the relay UE may be a C-RNTI, or a user identifier of the F1 interface, for example, the gNB-CU UE F1AP ID, gNB-DU UE F1AP ID.
  • the identity of the second terminal equipment may be an interface identity or an air interface identity
  • the identity of the remote UE may be a C-RNTI or a local identity, or a user identity of the F1 interface, such as gNB-CU UE F1AP ID, gNB-DU UE F1AP ID.
  • the first request message may be a user context modification request message, and the first user context modification request message carries the identifier of the first terminal device, the SRB identifier of the first terminal device and the SRB1 of the second terminal device.
  • the first request message may be a user context modification request message, and the first user context modification request message carries the identifier of the first terminal device, the bearer identifier of the first terminal device and the SRB1 of the second terminal device. External bearer identification.
  • the first network device receives the first request message sent by the second network device, confirms that the context is to be modified for the first terminal device, and generates an associated RLC according to the information carried in the first request message Bearer configuration. Specifically, the first network device generates or modifies the first RLC bearer configuration according to the bearer identification of the first terminal device, that is, the bearer identification of the first terminal device and the bearer identification of the second terminal device received by the first network device There is an association relationship between them, and the first RLC bearer configuration generated by the first terminal device is also related to the association relationship, that is, the first RL bearer configuration, the bearer identification of the first terminal device, and the bearer identification of the second terminal device have a relationship between them.
  • the first network device can determine the association relationship between the first RLC bearer configuration and the second RLC bearer configuration.
  • the first network device sends a first transmission message to the second network device, where the first transmission message is used to establish the F1 between the second network device and the first network device for the second terminal device.
  • the first transmission message carries the identifier of the first terminal device and the first configuration in the second RLC bearer configuration.
  • the first network device sends a second transmission message to the second network device, and the second transmission message is transmitted through a second F1 logical connection, and the second F1 connection is connected to the first terminal device.
  • a connection channel between the first network device and the second network device, the second transmission message includes the identifier of the second terminal device and the first configuration in the second RLC bearer configuration.
  • the first transmission message may be an initial uplink RRC transmission message.
  • the second transmission message may be an uplink RRC transmission message.
  • a second request message sent by the second network device to the first network device where the second request message is used to request the first network device to establish the context of the second terminal device, the second request message
  • the bearer identifier of the second terminal device is included, and the first network device generates the second configuration in the second RLC bearer configuration of the response according to the bearer identifier of the second terminal device.
  • the first network device sends a second response message to the second network, where the second response message carries the second configuration in the second RLC bearer configuration.
  • the second network device sends a third request message to the first network device, the third request message is used to request the first network device to modify the context of the second terminal device, and the request message carries the second request message.
  • the bearer identifier of the terminal device, and the first network device generates the second configuration in the second RLC bearer configuration of the response according to the bearer identifier of the second terminal device.
  • the first network device sends a third response message to the second network, where the third response message carries the second configuration in the second RLC bearer configuration.
  • the second request message may also carry the bearer identifier of the first terminal device.
  • the third request message may also carry the bearer identifier of the first terminal device.
  • the first RLC bearer configuration is associated with the bearer identifier of the first terminal device, optionally, the first RLC bearer configuration is associated with the DRB identifier of the first terminal device; optionally the first RLC bearer configuration is associated with The SRB identifier of the first terminal device has an association relationship.
  • the second RLC bearer configuration is associated with the bearer identifier of the second terminal device, optionally, the second RLC bearer configuration is associated with the DRB identifier of the second terminal device; optionally the second RLC bearer configuration is associated with The SRB identifier of the second terminal device has an associated relationship.
  • association relationship between the first RLC bearer configuration and the second RLC bearer configuration may be an association relationship between an SRB identifier associated with the first terminal device and an SRB identifier associated with the second terminal device.
  • association relationship between the first RLC bearer configuration and the second RLC bearer configuration may be an association relationship between a DRB identifier associated with the first terminal device and a DRB identifier associated with the second terminal device.
  • the second network device In order for the first network device and the first terminal device to accurately transmit the message of the second terminal device, the second network device also needs to know the association relationship between the first RLC bearer configuration and the second RLC bearer configuration. Therefore, in step S604, the first network device sends a first response message to the second network device, where the first response message carries the first RLC bearer configuration, and the first response message is used to let the second network device know the first response message.
  • the network device has modified the context for the first terminal device.
  • the second network device can further determine the association relationship between the first RLC bearer configuration and the second RLC bearer configuration according to the association relationship between the bearer identification of the first terminal device and the bearer identification of the second terminal device.
  • the association relationship involved in the above process may be a mapping relationship, that is, the mapping relationship between the bearer identification of the first terminal device and the bearer identification of the second terminal device, the first RLC bearer configuration and the second RLC bearer configuration.
  • the mapping relationship between them can be shown in Table 1 below:
  • both the first network device and the second network device know the association relationship between the first RLC bearer configuration and the second RLC bearer configuration. Therefore, when the second network device instructs the first network device to forward the message of the second terminal device, the first network device can correctly forward the second terminal device according to the association between the first RLC bearer configuration and the second RLC bearer configuration news.
  • FIG. 7 shows another schematic diagram of a communication method provided by an embodiment of the present application.
  • the first network device is a DU
  • the first network device is a CU
  • the first terminal device is a relay UE#1
  • the second terminal device is the remote UE#2 as an example to illustrate, the specific method in FIG. 7 includes:
  • the DU sends an initial uplink RRC transmission message to the CU.
  • the CU sends a first downlink RRC transmission message to the DU.
  • the relay UE#1 and the remote UE#2 establish unicast communication
  • the relay UE#1 needs to assign a local identity to the remote UE#2 that it accesses.
  • the remote UE#2 requests to establish an RRC connection
  • the RRC setup request message carries the local identifier, so when the DU receives the RRC setup request message from the remote UE#2, the DU knows the After UE#1 newly accesses a remote device, the remote device is remote UE#2.
  • the DU knows that the configuration of the radio bearer is to be established for the remote UE#2, so the DU first generates the RLC bearer configuration #1 (that is, the first RLC bearer configuration in the second RLC bearer configuration) according to the bearer identifier of the remote UE#2. configuration), and needs to send RLC bearer configuration #1 to the CU.
  • the RLC bearer configuration #1 that is, the first RLC bearer configuration in the second RLC bearer configuration
  • the DU needs to send RLC bearer configuration #1 to the CU.
  • the embodiments of the present application provide an F1 logical connection for a remote device, that is, the DU initiates an initial uplink RRC transmission message to the CU, and the transmission message is used to establish a connection between the CU and the DU for the remote UE#2.
  • the first F1 logical connection that is to say, the first F1 logical connection is a connection channel for exclusively transmitting UE#2 messages.
  • the transmission message carries the identity of the relay UE#1 and the RLC bearer configuration #1.
  • the CU can confirm that the F1 logical connection is established for the remote UE#1, and know that the remote UE#2 is through the relay UE# according to the identifier of the relay UE#1 in the first transmission message.
  • the 1-pass relay service generate a complete radio bearer configuration according to the RLC bearer configuration #1 carried in the first transmission message, that is, combine the RLC bearer configuration #1, the PDCP configuration and the SDAP configuration to generate a complete radio bearer configuration, and send the configuration of the radio bearer to the DU, that is, the first downlink RRC transmission message in step S702, where the first downlink RRC transmission message carries the identifier of the relay UE#1, the identifier of the remote UE#2 and Configuration of radio bearers.
  • the DU forwards the radio bearer configuration to the remote UE#2 through the relay UE#1 through the established SRB0 channel.
  • the identifier of the relay UE#1 may be an interface or air interface identifier, such as gNB-CU UE F1AP ID, gNB-DU UE F1AP ID or C-RNTI.
  • the RLC bearer configuration #1 is a bearer configuration used to transmit the message of the remote UE #2 between the remote UE #2 and the relay UE #1.
  • RLC bearer configuration #1 is the RLC bearer configuration associated with SRB1.
  • the following will take the establishment process of the SRB1 of the remote UE#2 as an example for description.
  • S703 Determine the mapping relationship between the SRB1 of the remote UE#2 and the SRB identifier of the relay UE#1.
  • the CU first determines the mapping relationship between the SRB identifier of the relay UE#1 and the SRB1 identifier of the remote UE#2.
  • the CU may request the relay UE#1 to add an SRB identifier, and then may determine the mapping relationship between the newly added SRB identifier and the SRB1 of the remote UE#2.
  • the CU may also change the currently existing SRB identifier of the relay UE1, and determine the mapping relationship between it and the SRB1 of the remote UE#2.
  • step S704 the CU sends a first user context modification request message to the DU.
  • the CU sends a first user context modification request message to the DU, where the request message carries the identity of the remote UE#2, the SRB1 of the remote UE#2, and the SRB identity of the relay UE#1, where the message contains
  • the carried SRB1 of the remote UE#2 has a mapping relationship with the SRB identifier of the relay UE#1, and the request message is used to request the DU to modify the context of the relay UE#1.
  • the DU determines the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1.
  • the DU determines that the context is to be modified for the relay UE#1.
  • the DU generates or modifies the RLC configuration #2 associated with the SRB identifier of the relay UE#1 in the request message, that is to say, the DU knows the SRB identifier of the relay UE#1 and the SRB1 of the remote UE#2 at this time. mapping relationship between. Therefore, the mapping relationship between the RLC bearer configuration #2, the SRB identifier of the relay UE#1 and the SRB1 of the remote UE#2 can be further determined. And the RLC bearer configuration #1 associated with the SRB1 of the remote UE#2 is stored in the DU, so the DU can determine the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1.
  • the RLC bearer configuration #2 is the bearer configuration used to transmit far-end UE#2 messages between the relay UE#1 and the DU.
  • the DU sends a first user context modification response message to the CU.
  • the DU sends a first user context modification response message to the CU, the response message is used to inform the CU that the context modification of the relay UE#1 has been completed, and the response message carries the identifier of the remote UE#2 and the RLC Bearer configuration #2.
  • the CU determines the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1.
  • the CU determines the mapping relationship between it and the RLC bearer configuration #1 according to the RLC bearer configuration #2 carried in the received first user context modification response message.
  • the CU stores the mapping relationship between the SRB1 of the remote UE#2 and the identifier of the SRB of the relay UE#1, the RLC bearer configuration #1 has a mapping relationship with the SRB1 of the remote UE#2, and the RLC bearer configuration #2 It has a mapping relationship with the SRB identifier of the relay UE#1, so the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1 can be determined.
  • the CU sends the second downlink RRC transmission message to the relay UE#1.
  • the CU in order for the relay UE#1 to correctly forward the message of the remote UE#2, the CU also needs to send the RLC bearer configuration #2 and the RLC bearer configuration #1 to the relay UE#1. Therefore, the CU sends a second downlink RRC transmission message to the relay UE#1, and the message carries the identifier of the relay UE#1, the RLC bearer configuration #2 and the RLC bearer configuration #1.
  • the relay UE#1 establishes the bearer between the relay UE#1 and the DU according to the RLC bearer configuration #2, and establishes the bearer between the relay UE#1 and the remote UE#2 according to the RLC bearer configuration #1.
  • the remote UE#2 establishes the bearer between the relay UE#1 and the remote UE#2 according to the RLC bearer configuration #1, at this time, the relay UE#1 knows that it is established in the medium according to the RLC bearer configuration #2
  • the bearer between the relay UE#1 and the DU corresponds to which of the bearers between the relay UE#1 and the remote UE#2.
  • the remote UE#2 needs to feed back to the CU.
  • the remote UE#2 sends the information to the relay UE#1 through the bearer established based on the RLC bearer configuration #1.
  • relay UE#1 knows the mapping relationship between RLC bearer configuration #1 and RLC bearer configuration #2, so relay UE #1 knows that the message is from the bearer established based on RLC bearer configuration #1 Therefore, it is also known that the transmission is performed by relaying the bearer established based on the RLC bearer configuration #2 between the relay UE#1 and the DU, so that the RRC establishment complete message can be correctly forwarded.
  • the CU sends a user context establishment request message to the DU.
  • the CU sends a user context establishment request message to the DU,
  • the request message carries the identifier of the DRB of the remote UE#2, and the request message is used to establish a context for the remote UE#2.
  • the DU generates an RLC bearer configuration #3 (ie, the second configuration in the second RLC bearer configuration).
  • the DU determines that the context is to be established for the remote UE#2, and generates the associated RLC bearer configuration according to the DRB identifier of the remote UE#2 carried in the request message.# 3.
  • the RLC bearer configuration #3 is to establish an RLC bearer between the relay UE#1 and the remote UE#1 to transmit the message of the remote UE#2.
  • the DU generates an RLC bearer configuration associated with the SRB identity of the remote UE#2 according to the SRB identity of the remote UE#2.
  • the DU sends a user context establishment response message to the CU.
  • the DU After the DU establishes the context for the remote UE#2, it needs to send a user context establishment response message to the CU, and the response message carries the RLC bearer configuration #3.
  • Steps S709 to S711 are to establish the context of the remote UE#2.
  • S709 may send a third user context modification request message to the CU for the DU, where the request message carries the identifier of the DRB of the remote UE#2, and the request message is used to modify the context for the remote UE#2; S710 according to the remote UE#2
  • the RLC bearer configuration #3 generated by the DRB identifier of the end UE#2.
  • S711 may be the third user context modification response message sent by the DU to the CU.
  • the response message may be the context modification response message of the remote UE#2.
  • the context modification response message carries RLC bearer configuration #3.
  • the CU determines the mapping relationship between the DRB identifier of the remote UE#2 and the DRB identifier of the relay UE#1.
  • the CU adds the DRB identifier of the relay UE#1 for the remote UE#2, and then determines the newly added DRB identifier and the remote UE#2's DRB identifier.
  • the mapping relationship between DRB identifiers may also change the current DRB identity of the relay UE#1, and determine the mapping relationship between it and the DRB identity of the remote UE#2.
  • the CU sends a second user context modification request message to the DU.
  • the relay UE#1 needs to update the context.
  • the CU sends a second user context modification request message to the DU, where the request message carries the identity of the remote UE#2, the DRB identity of the remote UE#2 and the DRB identity of the relay UE#1, wherein the request message
  • the DRB identifier of the remote UE#2 carried in the message has a mapping relationship with the DRB identifier of the relay UE#1, and the request message is used to request the DU to modify the context of the relay UE#1.
  • the mapping relationship between the DRB identifier of the remote UE#2 and the DRB identifier of the relay UE#1 is determined by the CU in step S716.
  • the DRB identifier of the remote UE#2 is the bearer identifier between the remote UE#2 and the CU
  • the DRB identifier of the relay UE#1 is the bearer identifier between the relay UE#1 and the CU.
  • the DU determines the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3.
  • the DU determines that the context of relay UE#2 needs to be modified, and generates an associated RLC bearer according to the DRB identifier of relay UE#1 carried in the request message Configuration #4 (ie, the first RLC bearer configuration), because the DRB identity of the relay UE#1 has a mapping relationship with the DRB identity of the remote UE#2, and the RLC bearer configuration #3 is also a DU according to the DRB of the remote UE#2 The identifier is generated, so the DU needs to determine the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3. Further, the DU also needs to determine the mapping relationship between the RLC bearer configuration #4, the DRB identity of the remote UE#2, and the DRB identity of the relay UE#1.
  • the DU sends a second user context modification response message to the CU, where the response message carries the RLC bearer configuration #4.
  • the DU determines the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3.
  • the CU After receiving the second user context modification response message, the CU knows that the DU has modified the context for relay UE#1. At this time, the CU also needs to determine the mapping between RLC bearer configuration #4 and RLC bearer configuration #3 relation. Because the CU has already determined the mapping relationship between the DRB identity of the relay UE#1 and the DRB identity of the remote UE#2, and in step S711, the DU receives the DRB identity associated with the remote UE#2. RLC bearer configuration #3. Therefore, the CU can further determine the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3, that is, the DU maintains the mapping relationship between the DRB identity of the relay UE#1 and the DRB identity of the remote UE#2. Maintain the mapping relationship between RLC bearer configuration #4 and bearer configuration #3.
  • the CU sends a third downlink RRC transmission message to the relay UE#1.
  • the CU stores RLC bearer configuration #4 and RLC bearer configuration #3.
  • relay UE #1 establishes a bearer between DU and relay UE #1 according to RLC bearer configuration #4 , so that both the relay UE#1 and the DU can correctly forward the message of the remote UE#2. Therefore, the CU sends the identifier of the relay UE #1, the RLC bearer configuration #4, and the bearer configuration #3 to the relay UE through the third downlink RRC transmission message.
  • the CU sends a fourth downlink RRC transmission message to the remote UE#2.
  • a bearer needs to be established between the relay UE#1 and the remote UE#2.
  • the CU needs to send the remote UE's #3 in the identity and bearer configuration is sent to the remote UE.
  • the CU sending the third downlink RRC transmission message to the relay UE#1 may be performed after the CU sends the fourth downlink RRC transmission message to the remote UE#2, or the CU sends the third downlink RRC transmission message to the relay UE#1.
  • the downlink RRC transmission message may be performed simultaneously with the CU sending the fourth downlink RRC transmission message to the remote UE#2, which is not limited here.
  • the DU when the CU instructs the DU to transmit data to the remote UE#2, the DU receives the data transmitted by the CU, the identity of the remote UE#2, and the bearer identity DRB1 of the remote UE#2. In this way, the CU determines that the data of the remote UE#2 needs to be sent through the DRB1 bearer of the remote UE#2. Based on the above steps, the DU can identify the DRB2 bearer of the relay UE#2 having a mapping relationship with the bearer identifier DRB1 of the UE#2 of the remote UE, and forward the bearer to the relay UE#1 through the RLC bearer corresponding to the DRB2 bearer.
  • the relay UE#1 has also learned the mapping relationship between the RLC bearer configuration of DRB2 and the RLC bearer configuration of DRB1. Therefore, when the DU receives data sent through the RLC bearer associated with DRB2, the DU can correctly Forwarded to remote UE#2 through the RLC bearer associated with DRB1.
  • the relay UE#1 has also learned the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3, so it can Through the mapping relationship between the RLC bearer #3, the UE can correctly forward the data packet sent by the remote UE #2 through the bearer associated with the RLC bearer configuration #3 to the DU through the bearer associated with the RLC bearer configuration #4.
  • the CU already knows the PDCP entity associated with the RLC bearer configuration #4, so it can correctly deliver the data packet to the upper layer.
  • both the CU and the DU can determine the mapping relationship between the first RLC bearer configuration and the second RLC bearer configuration, so the DU can correctly convert the messages of the remote device sent to the relay device.
  • the relay device also knows the mapping relationship between the RLC bearer between the relay device and the DU and the RLC bearer between the relay UE and the remote UE. Therefore, the relay device can also correctly forward the message of the remote device.
  • the DRB identifier of the relay UE#1, the DRB identifier of the remote UE#2 and the remote UE# The description is given as an example in which the DRB identifier of 2 and the DRB identifier of the relay UE#1 have a mapping relationship.
  • S709 to S718 are also applicable to the SRB identifier of the relay UE#1, the SRB identifier of the remote UE#2, and the SRB identifier of the remote UE#2 and the DRB identifier of the relay UE#1 have a mapping relationship. This is not too restrictive.
  • FIG. 8 shows another schematic diagram of a communication method provided by an embodiment of the present application.
  • the first network device is a DU
  • the first network device is a CU
  • the first terminal device is a relay UE#1
  • the second terminal device is the remote UE#2 as an example to illustrate, the specific method in FIG. 8 includes:
  • the DU sends an uplink RRC transmission message to the CU.
  • the CU sends a first downlink RRC transmission message to the DU.
  • the relay UE#1 needs to assign a local identity to the remote UE#2 that it accesses.
  • the remote UE#2 requests to establish an RRC connection
  • the RRC setup request message carries the local identifier, so when the DU receives the RRC setup request message from the remote UE#2, the DU will know the local identifier carried in the message.
  • the relay UE#1 newly accesses a remote device, and the remote device is the remote UE#2.
  • the DU sends an uplink RRC transmission message to the CU, and the uplink RRC transmission message transmits the message of the remote UE#2 through the second F1 logical connection established between the CU and the DU by the relay UE#1, that is, the remote UE#1 #2 transmits the message by multiplexing the F1 logical connection between the CU and the DU of the relay UE #1.
  • the uplink RRC transmission message carries the identity of the remote UE#2 and the RLC bearer configuration #1 that has a mapping relationship with the SRB1 of the remote UE#1.
  • the DU sends an uplink RRC transmission message to the CU
  • the second F1 logical connection established between the DU and the CU is exclusively used to transmit the message of the relay UE#1, but at this time, the remote UE#2 multiplexes
  • the logical connection transmits the message of the remote UE. Therefore, in order to distinguish whether the message of the relay UE#1 or the message of the remote UE#2 is transmitted in the F1 logical connection, it is necessary to carry an identifier in each message, for example, the uplink
  • the purpose of carrying the identifier of the remote UE#2 in the RRC transmission message is to let the CU know that the message comes from the remote UE.
  • the CU receives the uplink RRC transmission message and can confirm that the remote UE#1 multiplexes the F1 logical connection between the CU and the DU of the relay UE#1, according to the RLC carried in the uplink RRC transmission message.
  • the bearer configuration #1 generates a complete radio bearer configuration, that is, the RLC bearer configuration #1, the PDCP configuration and the SDAP configuration are combined to generate a complete radio bearer configuration, and the radio bearer configuration is sent to the DU, that is, step S802.
  • the first downlink RRC transmission message where the first downlink RRC transmission message carries the identifier of the remote UE#2 and the configuration of the radio bearer.
  • the DU forwards the radio bearer configuration to the remote UE#2 through the relay UE#1 through the established SRB0 channel.
  • the identifier of the remote UE#2 can be an interface identifier or an air interface identifier, for example, C-RNTI, gNB-CU UE F1AP ID, gNB-DU UE F1AP ID.
  • the RLC bearer configuration #1 is a bearer configuration used to transmit the message of the remote UE #2 between the remote UE #2 and the relay UE #1.
  • the following will take the establishment process of the SRB1 of the remote UE#2 as an example for description.
  • S803 Determine the mapping relationship between the SRB1 of the remote UE#2 and the SRB identifier of the relay UE#1.
  • the CU sends a first user context modification request message to the DU.
  • the DU determines the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1.
  • the DU sends a first user context modification response message to the CU.
  • the CU determines the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1.
  • the CU sends the second downlink RRC transmission message to the relay UE#1.
  • steps S803 to S808 For the specific implementation of steps S803 to S808, reference may be made to the above steps S703 to S708, the context modification of CU and DU for relay UE#1 and the establishment of SRB1, which will not be repeated here.
  • the DU determines the mapping relationship between the DRB identifier of the remote UE#2 and the DRB identifier of the relay UE#1.
  • the CU knows that the context of the remote UE#2 has changed. Because the remote UE#2 reuses the F1 logical connection of the relay UE#1, the CU maintains the context of the remote UE#2 by maintaining the context of the relay UE#1. At this time, the CU adds the DRB identifier of the relay UE#1 to the remote UE#2, and then determines the mapping relationship between the newly added DRB identifier and the DRB identifier of the remote UE#2. Alternatively, the CU may also change the current DRB identity of the relay UE#1, and determine the mapping relationship between it and the DRB identity of the remote UE#2.
  • the CU sends a second user context modification request message to the DU.
  • the CU needs to maintain the context of the relay UE#1 and then the context of the remote UE#2.
  • the CU sends a second user context modification request message to the DU, and the request message carries the remote UE#2.
  • the ID of the remote UE#2 and the DRB ID of the relay UE#1, wherein the DRB ID of the remote UE#2 carried in the message has a mapping relationship with the DRB ID of the relay UE#1.
  • the request The message is used to request the DU to modify the context of relay UE#1.
  • the mapping relationship between the DRB identifier of the remote UE#2 and the DRB identifier of the relay UE#1 is determined by the CU in step S809.
  • the DRB identifier of the remote UE#2 is the bearer identifier between the remote UE#2 and the CU
  • the DRB identifier of the relay UE#1 is the bearer identifier between the relay UE#1 and the CU.
  • the DU determines the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3.
  • the DU determines that the context of the relay UE#2 needs to be modified, and generates an associated RLC bearer according to the DRB identifier of the relay UE#1 carried in the request message.
  • Configuration #4 that is, the first RLC bearer configuration
  • the associated RLC bearer configuration #3 that is, the second configuration in the second RLC bearer configuration
  • the DU needs to determine the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3.
  • the DU also needs to determine the mapping relationship between the RLC bearer configuration #4, the DRB identity of the remote UE#2, and the DRB identity of the relay UE#1.
  • the DU sends a second user context modification response message to the CU.
  • the DU modifies the context of the relay UE#1 and determines the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3, it needs to send a second user context modification response message to the CU, the response The message carries the identity of the remote UE#2, the RLC bearer configuration #4 and the RLC bearer configuration #3.
  • the DU determines the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3.
  • the CU after receiving the second user context modification response message, the CU knows that the DU has modified the context for the relay UE#1. At this time, the CU also needs to determine the mapping between the RLC bearer configuration #4 and the RLC bearer configuration #3. relation. This is because the CU has already determined the mapping relationship between the DRB identity of the relay UE#1 and the DRB identity of the remote UE#2. Therefore, the CU can further determine the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3, that is, the DU maintains the mapping relationship between the DRB identity of the relay UE#1 and the DRB identity of the remote UE#2. Maintain the mapping relationship between RLC bearer configuration #4 and RLC bearer configuration #3.
  • the CU sends a third downlink RRC transmission message to the relay UE#1.
  • the CU sends a fourth downlink RRC transmission message to the remote UE#2.
  • steps S809 to S815 are to further update the context of the remote UE#2 by updating the context of the relay UE#1.
  • S810 may be:
  • the DU sends a user context establishment request message to the CU.
  • the request message is used to request the DU to establish the context of the relay UE#2.
  • the request message carries the identity of the remote UE#2, the DRB identity of the remote UE#2 and the relay.
  • DRB identifier of UE#1; S812 may be a user context establishment response message sent by the DU to the CU, where the response message carries the identifier of the remote UE#2, RLC bearer configuration #4 and RLC bearer configuration #3.
  • the remote device multiplexes the F1 logical connection between the CU and the DU of the relay device, and the CU and DU maintain the context of the relay UE and then the context of the remote UE, and further determine the The mapping relationship between the first RLC bearer configuration and the second RLC bearer configuration, so that the DU and the relay device can correctly forward the message of the remote device under the instruction of the CU.
  • step S809 to step S815 the DRB identity of the relay UE#1, the DRB identity of the remote UE#1 and the remote UE#
  • the description is given as an example in which the DRB identifier of 1 and the DRB identifier of the relay UE#2 have a mapping relationship.
  • S809 to S815 are also applicable to the SRB identifier of the relay UE#1, the SRB identifier of the remote UE#2, and the SRB identifier of the remote UE#2 and the DRB identifier of the relay UE#1 have a mapping relationship. This is not too restrictive.
  • FIG. 9 shows a schematic diagram of another embodiment of a communication method provided by an embodiment of the present application, and the method specifically includes:
  • the first network device determines the association relationship between the first RLC bearer configuration and the second RLC bearer configuration.
  • the first network device sends a first request message to the second network device.
  • the second network device sends a first response message to the first network device.
  • the second network device determines the association relationship between the first RLC bearer configuration and the second RLC bearer configuration.
  • the second network device can determine which first terminal device the second terminal device uses to provide the relay service for the second terminal device. , at this time, the first network device knows that a bearer is to be established for the second terminal device so as to transmit the message of the second terminal device.
  • the first network device generates a corresponding RLC bearer configuration (hereinafter referred to as the second RLC bearer configuration) according to the bearer identification of the second terminal device, and generates an RLC bearer configuration (hereinafter referred to as the first terminal device) associated with the bearer identification of the first terminal device.
  • first RLC bearer configuration or change the RLC bearer configuration to associate it with the second RLC bearer configuration.
  • the first network device After the first network device determines the association between the first RLC bearer configuration and the second RLC bearer configuration, the first network device sends a first request message to the second network device, where the first request message is used to request the second network
  • the device changes the context of the first terminal device, and the message carries the bearer identifier of the first terminal device, the bearer identifier of the second terminal device, the identifier of the second terminal device, and the first RLC bearer configuration.
  • the first network device sends a first transmission message to the second network device, where the first transmission message is used to establish an F1 between the second network device and the first network device for the second terminal device.
  • the first transmission message carries the identifier of the first terminal device and the first configuration in the second RLC bearer configuration.
  • the first network device sends a second transmission message to the second network device, and the second transmission message is transmitted through a second F1 logical connection, and the second F1 connection is connected to the first terminal device in the first
  • the connection channel between the network device and the second network device, the second transmission message includes the identifier of the second terminal device and the first configuration in the second RLC bearer configuration.
  • first transmission message or the second transmission message may be executed before S902, or may be executed after S902, which is not limited too much.
  • the second network device sends a second request message to the first network device, the second request message is used to request the first network device to establish the context of the second terminal device, and the request message carries the second request message.
  • the bearer identifier of the terminal device, and the first network device generates the second configuration in the second RLC bearer configuration of the response according to the bearer identifier of the second terminal device.
  • the first network device sends a second response message to the second network, where the second response message carries the second configuration in the second RLC bearer configuration.
  • the second network device sends a third request message to the first network device, where the third request message is used to request the first network device to modify the context of the second terminal device, and the request message carries the second request message.
  • the bearer identifier of the terminal device, and the first network device generates the second configuration in the second RLC bearer configuration of the response according to the bearer identifier of the second terminal device.
  • the first network device sends a third response message to the second network, where the third response message carries the second configuration in the second RLC bearer configuration.
  • the second request message may also carry the bearer identifier of the first terminal device.
  • the third request message may also carry the bearer identifier of the first terminal device.
  • the bearer identifier of the first terminal device may be determined by the first network device in its existing list.
  • the bearer identifier in this embodiment of the present application may be a DRB identifier or an SRB identifier.
  • the bearer identification of the first terminal device is the bearer identification between the first terminal device and the second network device, and the bearer identification of the first terminal device may be the SRB identification of the first terminal device, or the first terminal device. the DRB ID.
  • the bearer identification of the second terminal device is the bearer identification between the second terminal device and the second network device, and the bearer identification of the second terminal device may be the SRB identification of the second terminal device or the second terminal device. the DRB ID.
  • association relationship between the bearer identification of the first terminal device and the bearer identification of the second terminal device may be the association relationship between the SRB identification of the first terminal device and the SRB identification of the second terminal device, and/or the first The association relationship between the DRB identifier of the terminal device and the DRB identifier of the second terminal device.
  • the identifier of the first terminal equipment may be an interface identifier or an air interface identifier, for example, the identifier of the relay UE may be a C-RNTI, or a user identifier of the F1 interface, for example, the gNB-CU UE F1AP ID, gNB-DU UE F1AP ID.
  • the identifier of the second terminal equipment may be an interface identifier or an air interface identifier
  • the identifier of the remote UE may be a C-RNTI or a local identifier
  • a user identifier of the F1 interface for example, a gNB-CU UE F1AP ID, gNB-DU UE F1AP ID.
  • the first request message may be a user context modification request message, and the first user context modification request message carries the identifier of the first terminal device, the SRB identifier of the first terminal device and the SRB1 of the second terminal device.
  • the first request message may be a user context modification request message, and the first user context modification request message carries the identifier of the first terminal device, the bearer identifier of the first terminal device and the SRB1 of the second terminal device. External bearer identification.
  • the second RLC bearer configuration includes a first configuration and a second configuration
  • the first configuration is associated with SRB1 of the second terminal device
  • the second configuration is associated with bearer identifiers of the second terminal device other than SRB1.
  • the second network device After receiving the first request message sent from the first network device, the second network device determines that the context is to be modified for the first terminal device, and then sends a first response message to the first network device, where the first response message is used to inform the first The network device has modified the context of the first terminal device.
  • the first response message may be a user context confirmation message.
  • the second network device In order for the first network device and the first terminal device to accurately transmit the message of the second terminal device, the second network device also needs to know the association relationship between the first RLC bearer configuration and the second RLC bearer configuration. Therefore, the second network device determines and determines the association relationship between the first RLC bearer configuration and the second RLC bearer configuration according to the first request message. Specifically, the second network device receives the first RLC bearer configuration, the bearer identification of the first terminal device, and the bearer identification of the second terminal device, and the bearer identification of the first terminal device and the bearer identification of the second terminal device have There is also an association relationship between the first RLC bearer configuration, the bearer identification of the first terminal device, and the bearer identification of the second terminal device. Therefore, the second network device can further determine the first RLC bearer configuration and the second RLC bearer. Relationships between configurations.
  • the first RLC bearer configuration is associated with the bearer identifier of the first terminal device, optionally, the first RLC bearer configuration is associated with the DRB identifier of the first terminal device; optionally the first RLC bearer configuration is associated with The SRB identifier of the first terminal device has an association relationship.
  • the second RLC bearer configuration is associated with the bearer identifier of the second terminal device, optionally, the second RLC bearer configuration is associated with the DRB identifier of the second terminal device; optionally the second RLC bearer configuration is associated with The SRB identifier of the second terminal device has an associated relationship.
  • association relationship between the first RLC bearer configuration and the second RLC bearer configuration may be an association relationship between the SRB identification associated with the first terminal device and the SRB identification associated with the second terminal device.
  • association relationship between the first RLC bearer configuration and the second RLC bearer configuration may be an association relationship between a DRB identifier associated with the first terminal device and a DRB identifier associated with the second terminal device.
  • association relationship involved in the above process may be a mapping relationship. That is, the mapping relationship between the bearer identification of the first terminal device and the bearer identification of the second terminal device, the mapping relationship between the first RLC bearer configuration and the second RLC bearer configuration, the mapping relationship may be shown in Table 1.
  • the context of the first terminal device is maintained by the second network device, and both the first network device and the second network device know the association relationship between the first RLC bearer configuration and the second RLC bearer configuration. Therefore, when the second network device instructs the first network device to forward the message of the second terminal device, the first network device can correctly forward the second terminal device according to the association between the first RLC bearer configuration and the second RLC bearer configuration news.
  • FIG. 10 shows another schematic diagram of a communication method provided by an embodiment of the present application.
  • the first network device is a DU
  • the first network device is a CU
  • the first terminal device is a relay UE#1
  • the second terminal device is the remote UE#2 as an example to illustrate, the specific method in FIG. 10 includes:
  • the DU sends an initial uplink RRC transmission message to the CU.
  • the CU sends a first downlink RRC transmission message to the DU.
  • step S1001 and step S1002 reference may be made to the foregoing step S701 and step S702, which will not be repeated here.
  • the DU determines the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1.
  • S1003 only needs to be performed after the RRC establishment request message, and the sequence of steps S1003 and S1004 has no necessary sequence.
  • the sequence of steps in this embodiment of the present application is only an example, which is not limited in the present application.
  • the relay UE#1 needs to assign a local identity to the remote UE#2 that it accesses.
  • the RRC setup request message carries the local identifier, so when the DU receives the RRC setup request message from the remote UE#2, the DU will know the local identifier carried in the message.
  • Relay UE#1 newly accesses a remote device, which is remote UE#2.
  • the DU knows that a bearer is to be established for the far-end UE#2 associated with the relay UE#1 in order to transmit the message of the far-end UE#2.
  • the DU first determines the mapping relationship between the SRB1 of the remote UE#2 and the SRB identity of the relay UE.
  • the DU may request the relay UE#1 to add an SRB identifier, and then may determine the mapping relationship between the newly added SRB identifier and the SRB1 of the remote UE#2.
  • the DU can also change the current SRB identifier of the relay UE1, and determine the mapping relationship between it and the SRB1 of the remote UE#2.
  • the DU has already generated its associated RLC bearer configuration #1 (that is, the first configuration in the configuration of the second RLC bearer) according to the SRB1 of the remote UE#2, and the DU also needs to be generated according to the SRB identifier of the relay UE#1 or Change its associated RLC bearer configuration #2 (ie the first RLC bearer configuration). Because, the DU knows the mapping relationship between the SRB identity of the relay UE#1 and the SRB1 of the remote UE#2. Therefore, the mapping relationship between the RLC bearer configuration #2, the SRB identity of the relay UE #1 and the SRB1 of the remote UE #2 can be further determined. Therefore, the DU can also determine the RLC bearer configuration #2 and the RLC bearer configuration # The mapping relationship between 1.
  • the RLC bearer configuration #2 is a bearer configuration used to transmit far-end UE#2 messages between the relay UE#1 and the far-end UE#2.
  • the RLC bearer configuration #1 is the bearer configuration used to transmit far-end UE#2 messages between relay UE#1 and far-end UE#2.
  • the DU sends a first user context modification request message to the CU.
  • the DU sends a first user context modification request message to the CU, where the first user context modification request message is used to request the CU to change
  • the context of the relay UE#1 the message carries the SRB identity of the relay UE#1, the SRB1 of the remote UE#2, the identity of the remote UE#2, and the RLC associated with the SRB identity of the relay UE#1 Bearer configuration #2.
  • the CU sends a first user context modification response message to the DU, where the response message is used for the CU to confirm to the DU that the context of the relay UE#1 has been changed.
  • the CU determines the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1.
  • the CU determines the mapping relationship between it and the RLC bearer configuration #1 according to the RLC bearer configuration #2 carried in the received first request message.
  • the CU determines the mapping relationship between the SRB1 of the remote UE#2 and the SRB of the relay UE#1 carried in the received first user context modification request message, and in the uplink RRC transmission message, the CU has received Reaching the RLC bearer configuration #1, therefore, the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1 can be determined.
  • the CU sends a second downlink RRC transmission message to the relay UE#1.
  • step S1007 For a specific implementation manner of step S1007, reference may be made to the foregoing step S708, which will not be repeated here.
  • the CU sends a user context establishment request message to the DU.
  • the CU sends a user context establishment request message to the DU,
  • the user context establishment request message carries the identifier of the DRB of the remote UE#2, and the request message is used to establish a context for the remote UE#2.
  • the DU generates an RLC bearer configuration #3 (ie, the second configuration in the second RLC bearer configuration).
  • the DU determines that the context is to be established for the remote UE#2, and generates an RLC bearer associated therewith according to the DRB identifier of the remote UE#2 carried in the user context modification request message.
  • Configuration #3 the RLC bearer configuration #3 is used to establish an RLC bearer between the relay UE#1 and the remote UE#2 to transmit the messages of the remote UE#2.
  • the DU generates an RLC bearer configuration #3 associated therewith according to the SRB identifier of the remote UE#2.
  • the DU sends a user context establishment response message to the CU.
  • the DU After the DU establishes the context for the remote UE#2, it needs to send a user context establishment response message to the CU, and the response message carries the RLC bearer configuration #3.
  • steps S1008 to S1010 are to establish the context of the remote UE#2.
  • the remote UE#2 needs to be changed. 2 context.
  • S1008 may send a third user context modification request message to the CU for the DU, where the request message carries the identifier of the DRB of the remote UE#2, and the request message is used to modify the context for the remote UE#2;
  • the RLC bearer configuration #3 generated by the DRB identifier of the end UE#2, at this time, S1010 may be the third user context modification response message sent by the DU to the CU, and the response message may be the context modification response message of the remote UE#2, Similarly, the context modification response message carries RLC bearer configuration #3.
  • the DU determines the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3.
  • the user context establishment request message or the third user context modification request message carries the identifier of the DRB of the remote UE#2, and the DU determines the DRB identifier of the remote UE#2 and The mapping relationship between the DRB identifiers of the relay UE#1, that is, when the DU receives the user context establishment request message, on the one hand, it generates the associated RLC bearer configuration #3 (No. 3) according to the DRB identifier of the remote UE#2.
  • the DU can request the relay UE#1 to add a DRB identifier, and then can determine the mapping relationship between the added DRB identifier and the DRB of the remote UE#2.
  • the DU can also change the current DRB identifier of the relay UE1, and determine the mapping relationship between it and the DRB of the remote UE#2.
  • the DU generates its associated RLC bearer configuration #4 according to the DRB identity of the relay UE#1, and further determines the RLC bearer according to the mapping relationship between the DRB identity of the remote UE#2 and the DRB identity of the relay UE#1 Mapping relationship between configuration #4 and RLC bearer configuration #3.
  • the user context establishment request message or the third user context modification request message carries the DRB identifier of the remote UE#2 and the DRB identifier of the relay UE#1.
  • the CU determines.
  • the DU can also change the currently existing DRB identifier of the relay UE1, and determine the mapping relationship between it and the SRB1 of the remote UE#2. It should be understood that when the CU determines the mapping relationship between the DRB identifier of the remote UE#2 and the DRB identifier of the relay UE#1, after the DU receives the User Context Establishment Request message, on the one hand, the DU determines the mapping relationship between the remote UE#2 and the DRB identifier of the relay UE#1. The DRB identification of the relay UE #1 generates the associated RLC bearer configuration #1 (the second configuration in the second RLC bearer configuration).
  • the DU generates the RLC bearer configuration #1 associated with it according to the DRB identification of the relay UE #1
  • the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1 is further determined according to the mapping relationship between the DRB identity of the remote UE#2 and the DRB identity of the relay UE#1.
  • the DU sends a second user context modification request message to the CU.
  • the DU when the DU knows that the above procedure is for changing the bearer of the remote UE#2.
  • the DU will send a second user context modification request message to the CU, where the request message is used to request the modification of the context of the relay UE#1.
  • the request message carries the identity of the remote UE#2, the DRB identity of the remote UE#2, the DRB identity of the relay UE#1 and the RLC bearer configuration #4, wherein the DRB identity of the relay UE#1 and the remote end
  • the DRB identifier of UE#2 has a mapping relationship.
  • the CU sends a second user context modification response message to the DU, where the response message is used by the CU to inform the DU that the context of the relay UE#1 has been modified.
  • the CU determines the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3.
  • the CU In order to correctly forward the message of the remote UE#2, the CU also needs to know the mapping relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3. Therefore, after receiving the RLC bearer configuration #4, the DRB identity of the remote UE#2 and the DRB identity of the relay UE#1, the CU can first determine the DRB identity of the relay UE#1 and the DRB identity of the remote UE#2 The identifier has a mapping relationship. According to the mapping relationship between the RLC bearer configuration #4 and the relay UE #1, and the mapping relationship between the RLC bearer configuration #3 and the remote UE #2, it is possible to further determine the relationship between the RLC bearer configuration #4 and the RLC bearer configuration #3. mapping relationship between.
  • the CU sends a third downlink RRC transmission message to the relay UE#1.
  • the CU sends a fourth downlink RRC transmission message to the remote UE#2.
  • step S1015 and step S1016 reference may be made to the foregoing step S717 and step S718, which will not be repeated here.
  • steps S1008 to S1016 the DRB identity of the relay UE#1, the DRB identity of the remote UE#2 and the remote UE#
  • the description is given as an example in which the DRB identifier of 2 and the DRB identifier of the relay UE#1 have a mapping relationship.
  • S1008 to S1016 are also applicable to the SRB identifier of the relay UE#1, the SRB identifier of the remote UE#2, and the SRB identifier of the remote UE#2 and the DRB identifier of the relay UE#1 have a mapping relationship, and in This is not too restrictive.
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
  • FIG. 11 shows another schematic diagram of a communication method provided by an embodiment of the present application.
  • the first network device is a DU
  • the first network device is a CU
  • the first terminal device is a relay UE# 1.
  • the second terminal device is the remote UE#2 as an example for description.
  • the specific method in FIG. 11 includes:
  • the DU sends an uplink RRC transmission message to the CU.
  • the CU sends a first downlink RRC transmission message to the DU.
  • step S1101 and step S1102 reference may be made to the foregoing step S801 and step S802, which will not be repeated here.
  • the DU determines the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1.
  • the DU sends a first user context modification request message to the CU.
  • the CU sends a first user context modification response message to the DU.
  • the CU determines the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1.
  • the CU sends the second downlink RRC transmission message to the relay UE#1.
  • step S1103 and step S1107 reference may be made to the foregoing step S1003 and step S1007, which will not be repeated here.
  • the DU determines the mapping relationship between the DRB identifier of the remote UE#2 and the DRB identifier of the relay UE#1.
  • the CU sends a second user context modification request message to the DU.
  • the DU determines the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1.
  • the DU sends a second user context modification response message to the CU.
  • the DU determines the mapping relationship between the RLC bearer configuration #2 and the RLC bearer configuration #1.
  • the CU sends a third downlink RRC transmission message to the relay UE#1.
  • the CU sends a fourth downlink RRC transmission message to the remote UE#2.
  • step S1108 and step S1114 reference may be made to the foregoing step S809 and step S815, which will not be repeated here.
  • steps S703 to S708 may be combined with steps S1008 to S1016.
  • steps S1001 to S1007 may be combined with steps S709 to S718. That is to say, any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application, and all should be covered within the protection scope of this application.
  • FIG. 12 is a schematic diagram of another communication method provided by an embodiment of the present application.
  • the first network device is a DU and the second network device is a CU as an example for description.
  • the DU sends an F1 connection establishment request message to the CU.
  • the CU sends an F1 connection establishment response message to the DU.
  • the DU needs to establish an F1 connection with the CU and exchange cell-level information.
  • the DU sends an F1 connection establishment request message to the CU, where the F1 connection establishment request message is used to request the CU to establish an F1 connection between the CU and the DU, and the request message carries the system information of the DU.
  • the CU After the CU establishes the F1 connection, it will send an F1 connection establishment response message to the DU, where the response message carries the CU's system information and sidelink radio bearer configuration.
  • the DU receives the response message, the DU sends the sidelink radio bearer configuration in the broadcast system message.
  • the DU broadcast system message is triggered based on the Preamble message (Msg1) sent by the UE.
  • Msg1 the Preamble message
  • the DU can determine which system messages to broadcast by identifying the Preamble message.
  • the DU broadcast system message is triggered based on a connection establishment request message (Msg3) or an uplink RRC message sent by the UE.
  • Msg3 connection establishment request message
  • the UE can clearly indicate the need for cell broadcast messages in these two messages, and the CU instructs the DU to broadcast the corresponding system message after identifying the Msg3 message or the uplink RRC message.
  • S1201 and S1202 should be executed before S701, S801, S1001 and S1101, that is, the F1 connection between the DU and the CU needs to be executed before any terminal device is connected.
  • FIG. 13 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • the communication apparatus 1300 may include:
  • Transceiver unit 1310 storage unit 1320 and processing unit 1330 .
  • the transceiver unit 1310 is configured to receive a first request message sent by the second network device, where the first request message is used to request the first network device to modify the context of the first terminal device, and the first request message includes the bearer identifier of the first terminal device,
  • the bearer identification of the second terminal device and the identification of the second terminal device the bearer identification of the first terminal device is the bearer identification between the first terminal device and the second network device
  • the bearer identification of the second terminal device is Bearer identification between the second terminal device and the second network device.
  • the transceiver unit 1310 is further configured to send a first response message to the second network device, where the first response message includes the first radio link control RLC bearer configuration, and the first RLC bearer configuration is used between the first terminal device and the first network device.
  • the message of the second terminal device is transmitted between the first RLC bearer configuration and the bearer identifier of the first terminal device.
  • the transceiver unit 1310 is configured to transmit the message of the second terminal device according to the association relationship between the bearer identifier of the second terminal device and the first RLC bearer configuration determined by the processing unit 1330 .
  • the apparatus 1300 may further include a processing unit 1330, and the processing unit 1330 is configured to determine the association relationship between the first RLC bearer configuration and the second RLC bearer configuration, and the second RLC bearer configuration is used for the second terminal device and the first RLC bearer configuration.
  • a bearer configuration for transmitting a second terminal device message between terminal devices, and the second RLC bearer configuration has an associated relationship with a bearer identifier of the second terminal device.
  • the bearer identifier of the first terminal device includes a signaling radio bearer SRB identifier of the first terminal device and/or a data radio bearer DRB identifier of the first terminal device.
  • the bearer identifier of the second terminal device includes the SRB identifier of the second terminal device and/or the DRB identifier of the second terminal device.
  • the SRB identifier of the first terminal device and the SRB identifier of the second terminal device have an association relationship.
  • the DRB identifier of the first terminal device and the DRB identifier of the second terminal device have an association relationship.
  • the transceiver unit 1310 is further configured to send a first transmission message to the second network device, where the first transmission message is used to establish the first F1 logic between the second network device and the first network device for the second terminal device connection, the first transmission message includes the identity of the first terminal device and the first configuration in the second RLC bearer configuration.
  • the transceiver unit 1310 is further configured to receive a second request message sent by the second network device, where the second request message is used to request the first network device to establish the context of the second terminal device, and the second request message includes the second terminal device.
  • the transceiver unit is further configured for the first network device to send a second response message to the second network device, where the second response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit 1310 is further configured to receive a third request message sent by the second network device, where the third request message is used to request the first network device to modify the context of the second terminal device, and the third request message includes the second terminal device.
  • the transceiver unit is further configured for the first network device to send a third response message to the second network device, where the third response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit 1310 is further configured to send the second transmission message to the second network device through the second F1 logical connection, where the second F1 logical connection is the communication between the first network device and the second network device of the first terminal device.
  • the connection channel, the second transmission message includes the identifier of the second terminal device and the first configuration in the second RLC bearer configuration.
  • the first response message further includes the second configuration in the second RLC bearer configuration.
  • the first configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB1 identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the DRB identifier of the second terminal device.
  • the identifier of the second terminal device includes an air interface identifier or an interface identifier
  • the air interface identifier includes a cell wireless network temporary identifier allocated by the first network device
  • the interface identifier includes an F1 interface user identifier
  • the transceiver unit 1310 is further configured to send an F1 connection establishment request message to the second network device.
  • the transceiver unit 1310 is further configured for the first network device to receive an F1 connection establishment response message sent by the second network device.
  • the F1 connection establishment response message includes the system message of the second network device and the sidelink radio bearer configuration.
  • the radio bearer is configured for the first network device to send in a system broadcast message.
  • the apparatus 1300 further includes a storage unit 1320 .
  • the storage unit 1320 can be used to store program codes and data, so that the processing unit 1330 executes the corresponding steps and/or processes in the above embodiments according to the instructions stored in the storage unit 1320 .
  • FIG. 14 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • the communication apparatus 1400 may include:
  • the transceiver unit 1410 processes the unit 1420 .
  • the transceiver unit 1410 is configured to send a first request message to the first network device, where the first request message is used to request the first network device to modify the context of the first terminal device, and the first request message includes the bearer identifier of the first terminal device, the first request message.
  • the bearer identification of the second terminal device and the identification of the second terminal device, the bearer identification of the first terminal device is the bearer identification between the first terminal device and the second network device
  • the bearer identification of the second terminal device is the second terminal device and the second network device. Bearer identifiers between the second network devices.
  • the transceiver unit 1410 is further configured to receive a first response message sent by the first network device, where the first response message includes a first radio link control RLC bearer configuration, and the first RLC bearer configuration is used between the first terminal device and the first network A message of the second terminal device is transmitted between devices, and the first RLC bearer configuration has an associated relationship with the bearer identifier of the first terminal device.
  • the first RLC bearer configuration, the bearer identifier of the first terminal device, and the bearer identifier of the second terminal device have an associated relationship.
  • the apparatus 1400 may further include a processing unit 1420, and the processing unit 1420 is configured to determine the association relationship between the first RLC bearer configuration and the second RLC bearer configuration, and the second RLC bearer configuration is configured to be used in the second terminal device and the first RLC bearer configuration.
  • a bearer configuration for transmitting a second terminal device message between terminal devices, and the second RLC bearer configuration has an associated relationship with a bearer identifier of the second terminal device.
  • the bearer identifier of the first terminal device includes a signaling radio bearer SRB identifier of the first terminal device and/or a data radio bearer DRB identifier of the first terminal device.
  • the bearer identifier of the second terminal device includes the SRB identifier of the second terminal device and/or the DRB identifier of the second terminal device.
  • the SRB identifier of the first terminal device and the SRB identifier of the second terminal device have a mapping relationship.
  • the DRB identifier of the first terminal device and the DRB identifier of the second terminal device have a mapping relationship.
  • the transceiver unit 1410 is further configured to receive a first transmission message sent by the first network device, where the first transmission message is used to establish a first F1 between the second network device and the first network device for the second terminal device.
  • the first transmission message includes the identity of the first terminal device and the first configuration in the second RLC bearer configuration.
  • the transceiver unit 1410 is further configured to send a second request message to the first network device, where the second request message is used to request the first network device to establish the context of the second terminal device, and the second request message includes the second terminal device. bearer ID.
  • the transceiver unit 1410 is further configured to receive a second response message sent by the first network device, where the second response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit 1410 is further configured to send a third request message to the first network device, where the third request message is used to request the first network device to modify the context of the second terminal device, and the third request message includes the context of the second terminal device. Bearer ID.
  • the transceiver unit 1410 is further configured to receive a third response message sent by the first network device, where the third response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit 1410 is further configured to receive a second transmission message sent by the first network device through a second F1 logical connection, where the second F1 logical connection is between the first network device and the second network device for the first terminal device.
  • the second transmission message includes the identifier of the second terminal device and the first configuration in the second RLC bearer configuration.
  • the first response message further includes the second configuration in the second RLC bearer configuration.
  • the first configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB1 identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the DRB identifier of the second terminal device.
  • the transceiver unit 1410 is further configured to send a first message to the first terminal device, where the first message includes the bearer identifier of the first terminal device, the first RLC bearer configuration and the second RLC bearer configuration.
  • the transceiver unit 1410 is further configured to send a second message to the second terminal device, where the second message includes the bearer identifier of the second terminal device and the second RLC bearer configuration.
  • the identifier of the second terminal device includes an air interface identifier or an interface identifier
  • the air interface identifier includes a cell wireless network temporary identifier allocated by the first network device
  • the interface identifier includes an F1 interface user identifier
  • the transceiver unit 1410 is further configured to receive an F1 connection establishment request message sent by the first network device.
  • the transceiver unit 1410 is further configured to send an F1 connection establishment response message to the first network device, where the F1 connection establishment response message includes a system message of the second network device and a sidelink radio bearer configuration, where the sidelink radio bearer configuration is used for The first network device sends in a system broadcast message.
  • the apparatus 1400 further includes a storage unit.
  • the storage unit can be used to store program codes and data, so that the processing unit 1420 executes the corresponding steps and/or processes in the above embodiments according to the instructions stored in the storage unit.
  • the communication device 1300 may include:
  • Transceiver unit 1310 storage unit 1320 and processing unit 1330.
  • the transceiver unit 1310 is configured to send a first request message to the second network device, where the first request message is used to request the second network device to modify the context of the first terminal device, and the first request message includes the bearer identifier of the first terminal device, the first request message.
  • the identifier of the second terminal device, the bearer identifier of the second terminal device, and the first RLC bearer configuration where the first RLC bearer configuration is used to transmit messages of the second terminal device between the first terminal device and the first network device , the first RLC bearer configuration is associated with the bearer identification of the first terminal device, the bearer identification of the first terminal device is the bearer identification between the first terminal device and the second network device, and the bearer identification of the second terminal device is the first Bearer identification between the second terminal device and the second network device.
  • the transceiver unit 1310 is further configured for the first network device to receive the first response message sent by the second network device.
  • the transceiver unit 1310 is further configured to transmit the message of the second terminal device according to the association relationship between the bearer identifier of the second terminal device and the first RLC bearer configuration determined by the processing unit 1330 .
  • the transceiver unit 1310 is further configured to receive the bearer identifier of the first remote device sent by the second network device.
  • the first RLC bearer configuration, the bearer identifier of the first terminal device, and the bearer identifier of the second terminal have an associated relationship.
  • the apparatus 1300 may further include a processing unit 1330, and the processing unit 1330 is configured to determine the association relationship between the first RLC bearer configuration and the second RLC bearer configuration, and the second RLC bearer configuration is used for the second terminal device and the first RLC bearer configuration.
  • a bearer configuration for transmitting a second terminal device message between terminal devices, and the second RLC bearer configuration has an associated relationship with a bearer identifier of the second terminal device.
  • the bearer identifier of the first terminal device includes a signaling radio bearer SRB identifier of the first terminal device and/or a data radio bearer DRB identifier of the first terminal device.
  • the bearer identifier of the second terminal device includes the SRB identifier of the second terminal device and/or the DRB identifier of the second terminal device.
  • the SRB identifier of the first terminal device and the SRB identifier of the second terminal device have an association relationship.
  • the DRB identifier of the first terminal device and the DRB identifier of the second terminal device have an association relationship.
  • the transceiver unit 1310 is further configured to send a first transmission message to the second network device, where the first transmission message is used to establish the first F1 logic between the second network device and the first network device for the second terminal device connection, the first transmission message includes the identity of the first terminal device and the first configuration in the second RLC bearer configuration.
  • the transceiver unit 1310 is further configured to receive a second request message sent by the second network device, where the second request message is used to request the first network device to establish the context of the second terminal device, and the second request message includes the second terminal The bearer ID of the device.
  • the transceiver unit 1310 is further configured to send a second response message to the second network device, where the second response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit 1310 is further configured to receive a third request message sent by the second network device, where the third request message is used to request the first network device to modify the context of the second terminal device, and the third request message includes the second terminal device. bearer ID.
  • the transceiver unit 1310 is further configured to send a third response message to the second network device, where the third response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit 1310 is further configured to send a second transmission message to the second network device through a second F1 logical connection, where the second F1 logical connection is between the first network device and the second network device for the first terminal device
  • the second transmission message includes the identifier of the second terminal device and the first configuration in the second RLC bearer configuration.
  • the first configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB1 identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that has an associated relationship with the DRB identifier of the second terminal device.
  • the identifier of the second terminal device includes an air interface identifier or an interface identifier
  • the air interface identifier includes a cell wireless network temporary identifier allocated by the first network device
  • the interface identifier includes an F1 interface user identifier
  • the transceiver unit 1310 is further configured to send an F1 connection establishment request message to the second network device.
  • the transceiver unit 1310 is further configured to receive an F1 connection establishment response message sent by the second network device, where the F1 connection establishment response message includes a system message of the second network device and a sidelink radio bearer configuration, where the sidelink radio bearer configuration Used by the first network device to send in a system broadcast message.
  • the apparatus 1300 further includes a storage unit 1320 .
  • the storage unit 1320 can be used to store program codes and data, so that the processing unit 1330 executes the corresponding steps and/or processes in the above embodiments according to the instructions stored in the storage unit 1320 .
  • the communication device 1400 may include:
  • Transceiver unit 1410 and processing unit 1420 are Transceiver units 1410 and processing unit 1420.
  • the transceiver unit 1410 is configured to receive a first request message sent by the first network device, the first request message is used to request the second network device to modify the context of the first terminal device, and the first request message includes the bearer identifier of the first terminal device, The identifier of the second terminal device, the bearer identifier of the second terminal device, and the first RLC bearer configuration, where the first RLC bearer configuration is used to transmit the second terminal between the first terminal device and the first network device device message, the first RLC bearer configuration is associated with the bearer identifier of the first terminal device, the bearer identifier of the first terminal device is the bearer identifier between the first terminal device and the second network device, and the bearer identifier of the second terminal device
  • the identifier is a bearer identifier between the second terminal device and the second network device; the transceiver unit 1410 is further configured to send a first response message to the first terminal device.
  • the transceiver unit 1410 is further configured to send the bearer identifier of the first terminal device to the first network device.
  • the first RLC bearer configuration there is an association relationship among the first RLC bearer configuration, the bearer identifier of the first terminal device, and the bearer identifier of the second terminal device.
  • the processing unit 1420 is configured to determine the association relationship between the first RLC bearer configuration and the second RLC bearer configuration, and the second RLC bearer configuration is used to transmit the second terminal device between the second terminal device and the first terminal device.
  • the bearer configuration of the message, the second RLC bearer configuration and the bearer identifier of the second terminal device are associated.
  • the bearer identifier of the first terminal device includes a signaling radio bearer SRB identifier of the first terminal device and/or a data radio bearer DRB identifier of the first terminal device.
  • the bearer identifier of the second terminal device includes the SRB identifier of the second terminal device and/or the DRB identifier of the second terminal device.
  • the SRB identifier of the first terminal device and the SRB identifier of the second terminal device have an association relationship.
  • the DRB identifier of the first terminal device and the DRB identifier of the second terminal device have an association relationship.
  • the transceiver unit 1410 is further configured to receive a first transmission message sent by the first network device, where the first transmission message is used to establish the first F1 logic between the first network device and the second network device for the second terminal device. connection, the first transmission message includes the identity of the first terminal device and the first configuration in the second RLC bearer configuration.
  • the transceiver unit 1410 is further configured to send a second request message to the first network device, where the second request message is used to request the first network device to establish the context of the second terminal device, and the second request message includes the second terminal device. bearer ID.
  • the transceiver unit 1410 is further configured to receive a second response message sent by the first network device, where the second response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit 1410 is further configured to send a third request message to the first network device, where the third request message is used to request the first network device to establish the context of the second terminal device, and the third request message includes the context of the second terminal device. Bearer ID.
  • the transceiver unit 1410 is further configured to receive a third response message sent by the first network device, where the third response message includes the second configuration in the second RLC bearer configuration.
  • the transceiver unit 1410 is further configured to receive the second transmission message sent by the first network device through the second F1 logical connection, and the second F1 logical connection is between the first network device and the second network device for the first terminal device.
  • the second transmission message includes the identifier of the second terminal device and the first configuration in the second RLC bearer configuration.
  • the first configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB1 identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the SRB identifier of the second terminal device.
  • the second configuration in the second RLC bearer configuration is an RLC bearer configuration that is associated with the DRB identifier of the second terminal device.
  • the transceiver unit 1410 is further configured to send a first message to the first terminal device, where the first message includes the bearer identifier of the first terminal device, the first RLC bearer configuration and the second RLC bearer configuration.
  • the transceiver unit 1410 is further configured to send a second message to the second terminal device, where the second message includes the bearer identifier of the second terminal device and the second RLC bearer configuration.
  • the identifier of the second terminal device includes an air interface identifier or an interface identifier
  • the air interface identifier includes a cell wireless network temporary identifier allocated by the first network device
  • the interface identifier includes an F1 interface user identifier
  • the transceiver unit 1410 is further configured to receive an F1 connection establishment request message sent by the first network device.
  • the transceiver unit 1410 is further configured to send an F1 connection establishment response message to the first network device, where the F1 connection establishment response message includes the system message of the second network device and the side link radio bearer configuration, and the side link radio bearer configuration is used for all
  • the first network device is sent in a system broadcast message.
  • the apparatus 1400 further includes a storage unit.
  • the storage unit can be used to store program codes and data, so that the processing unit 1420 executes the corresponding steps and/or processes in the above embodiments according to the instructions stored in the storage unit.
  • one or more of the units in FIG. 13 or FIG. 14 may be implemented by one or more processors, or by one or more processors and memories; or by one or more It is implemented by a processor and a transceiver; or implemented by one or more processors, a memory, and a transceiver, which is not limited in this embodiment of the present application.
  • the processor, memory, and transceiver can be set independently or integrated.
  • the present application also provides a computer-readable medium on which a computer program is stored, and when the computer program is executed by a computer, implements the functions of any of the foregoing method embodiments.
  • the present application also provides a computer program product, which implements the functions of any of the above method embodiments when the computer program product is executed by a computer.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

Landscapes

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

Abstract

本申请提供了一种通信方法和装置。该方法包括:第一网络设备接收第二网络设备发送的第一请求消息,该第一请求消息用于请求第一网络设备修改第一终端设备的上下文,该第一请求消息包括第一终端设备的承载标识、第二终端设备的承载标识以及第二终端设备的标识,第一终端设备的承载标识为第一终端设备和第二网络设备之间的承载标识,第二终端设备的承载标识为第二终端设备和第二网络设备之间的承载标识;第一网络设备向第二网络设备发送第一响应消息,该第一响应消息包括第一无线链路控制RLC承载配置,第一RLC承载配置用于在第一终端设备和第一网络设备之间传输第二终端设备的消息,第一RLC承载配置与第一终端设备的承载标识具有关联关系。

Description

一种通信方法及装置 技术领域
本申请涉及通信领域,并且更具体地,涉及一种通信方法及装置。
背景技术
随着通信技术的飞速发展,在第五代移动通信技术(the 5th generation mobile communication technology,5G)系统中,基站采用集中式单元(centralized unit,CU)和分布式单元(distributed unit,DU)独立部署的方式,即将基站的部分功能部署在一个CU,将剩余功能部署在DU,多个DU共用一个CU,一方面节省了成本,另一方面易于网络扩展。CU和DU可以按照协议栈进行切分,其中一种可能的方式是将无线资源控制(radio resource control,RRC),服务数据适应协议(service data adaptation protocol,SDAP)以及分组数据汇聚协议(packet data convergence protocol,PDCP)层部署在CU,其余的无线链路控制(radio link control,RLC)层,介质访问层(media access control,MAC)层以及物理层(physical,PHY)部署在DU。
为了提升网络系统的性能,例如覆盖增强和容量提升,5G技术中引入了设备到设备(device-to-device,D2D)通信和用户设备(user equipment,UE)间的协作通信,即运营商可以部署一个中继设备,该中继设备可以协助其他远端设备中转数据,从而提升网络覆盖。然而,在基于CU-DU架构下,如何实现DU和中继设备按照CU的指示正确转发远端设备消息是目前面临的问题。
发明内容
本申请提供一种通信方法,能够保证网络设备和中继设备能够正确转发终端设备的消息。
第一方面,提供了一种通信方法,包括:第一网络设备接收第二网络设备发送的第一请求消息,所述第一请求消息用于请求所述第一网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的承载标识以及所述第二终端设备的标识,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;所述第一网络设备向所述第二网络设备发送第一响应消息,所述第一响应消息包括第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系。
结合第一方面,在一种可能的实现方式中,所述方法还包括:所述第一网络设备根据所述第二终端设备的承载标识和所述第一RLC承载配置之间的关联关系传输所述第二终端设备的消息。
结合第一方面,在一种可能的实现方式中,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端的承载标识具有关联关系。
结合第一方面,在一种可能的实现方式中,所述方法还包括:所述第一网络设备确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
可选地,所述第一终端设备的承载标识包括所述第一终端设备的信令无线承载SRB标识和/或所述第一终端设备数据无线承载DRB标识。
可选地,所述第二终端设备的承载标识包括所述第二终端设备的SRB标识和/或所述第二终端设备的DRB标识。
可选地,所述第一终端设备的SRB标识和所述第二终端设备的SRB标识具有关联关系。
可选地,所述第一终端设备的DRB标识和所述第二终端设备的DRB标识具有关联关系。
结合第一方面,在一种可能的实现方式中,在所述第一网络设备接收第二网络设备发送的第一请求消息之前,所述方法还包括:所述第一网络设备向所述第二网络设备发送第一传输消息,所述第一传输消息用于为所述第二终端设备建立所述第二网络设备和所述第一网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
结合第一方面,在一种可能的实现方式中,在所述第一网络设备接收第二网络设备发送的第一请求消息之前,所述方法还包括:所述第一网络设备接收所述第二网络设备发送的第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;所述第一网络设备向所述第二网络设备发送第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
结合第一方面,在一种可能的实现方式中,在所述第一网络设备接收第二网络设备发送的第一请求消息之前,所述方法还包括:所述第一网络设备接收所述第二网络设备发送的第三请求消息,所述第三请求消息用于请求所述第一网络设备修改所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;所述第一网络设备向所述第二网络设备发送第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
结合第一方面,在一种可能的实现方式中,在所述第一网络设备接收第二网络设备发送的第一请求消息之前,所述方法还包括:所述第一网络设备通过第二F1逻辑连接向所述第二网络设备发送第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
结合第一方面,在一种可能的实现方式中,所述第一响应消息还包括所述第二RLC承载配置中的第二配置。
可选地,所述第二RLC承载配置中的第一配置为与所述第二终端设备的SRB1标识 具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的SRB标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的DRB标识具有关联关系的RLC承载配置。
结合第一方面,在一种可能的实现方式中,所述第二终端设备标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
结合第一方面,在一种可能的实现方式中,在所述第一网络设备接收第二网络设备发送的第一请求消息之前,所述方法还包括:所述第一网络设备向所述第二网络设备发送F1连接建立请求消息;所述第一网络设备接收所述第二网络设备发送的F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
第二方面,提供了一种通信方法,包括:第二网络设备向第一网络设备发送第一请求消息,所述第一请求消息用于请求所述第一网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的承载标识以及所述第二终端设备的标识,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;所述第二网络设备接收所述第一网络设备发送的第一响应消息,所述第一响应消息包括第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系。
结合第二方面,在一种可能的实现方式中,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端的承载标识具有关联关系。
结合第二方面,在一种可能的实现方式中,所述方法还包括:所述第二网络设备确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
可选地,所述第一终端设备的承载标识包括所述第一终端设备的信令无线承载SRB标识和/或所述第一终端设备数据无线承载DRB标识。
可选地,所述第二终端设备的承载标识包括所述第二终端设备的SRB标识和/或所述第二终端设备的DRB标识。
可选地,所述第一终端设备的SRB标识和所述第二终端设备的SRB标识具有关联关系。
可选地,所述第一终端设备的DRB标识和所述第二终端设备的DRB标识具有关联关系。
结合第二方面,在一种可能的实现方式中,在所述第二网络设备向第一网络设备发送第一请求消息之前,所述方法还包括:所述第二网络设备接收所述第一网络设备发送的第一传输消息,所述第一传输消息用于为所述第二终端设备建立所述第二网络设备和所述第 一网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
结合第二方面,在一种可能的实现方式中,所述方法还包括:所述第二网络设备向所述第一网络设备发送第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;所述第二网络设备接收所述第一网络设备发送的第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
结合第二方面,在一种可能的实现方式中,所述方法还包括:所述第二网络设备向所述第一网络设备发送第三请求消息,所述第三请求消息用于请求所述第一网络设备修改所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;所述第二网络设备接收所述第一网络设备发送的第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
结合第二方面,在一种可能的实现方式中,在所述第二网络设备向第一网络设备发送第一请求消息之前,所述方法还包括:所述第二网络设备通过第二F1逻辑连接接收所述第一网络设备发送的第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括第二终端设备的标识和所述第二RLC承载配置中的第一配置。
结合第二方面,在一种可能的实现方式中,所述第一响应消息还包括所述第二RLC承载配置中的第二配置。
可选地,所述第二RLC承载配置中的第一配置为与所述第二终端设备的SRB1标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的SRB标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的DRB标识具有关联关系的RLC承载配置。
结合第二方面,在一种可能的实现方式中,所述方法还包括:所述第二网络设备向所述第一终端设备发送第一消息,所述第一消息包括所述第一终端设备的承载标识,所述第一RLC承载配置以及第二RLC承载配置。
结合二方面,在一种可能的实现方式中,所述方法还包括:所述第二网络设备向所述第二终端设备发送第二消息,所述第二消息包括所述第二终端设备的承载标识和第二RLC承载配置。
结合第二方面,在一种可能的实现方式中,所述第二终端设备标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
结合第二方面,在一种可能的实现方式中,在所述第二网络设备向第一网络设备发送第一请求消息之前,所述方法还包括:所述第二网络设备接收所述第一网络设备发送的F1连接建立请求消息;所述第二网络设备向所述第一网络设备发送F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
第三方面,提供了一种通信方法,包括:第一网络设备向第二网络设备发送第一请求消息,所述第一请求消息用于请求所述第二网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的标识、所述第二终端设备的承载标识以及第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;所述第一网络设备接收所述第二网络设备发送的第一响应消息。
结合第三方面,在一种可能的实现方式中,所述方法还包括:所述第一网络设备根据所述第二终端设备的承载标识和所述第一RLC承载配置之间的关联关系传输所述第二终端设备的消息。
结合第三方面,在一种可能的实现方式中,所述方法还包括:所述第一网络设备接收所述第二网络设备发送的所述第一终端设备的承载标识。
结合第三方面,在一种可能的实现方式中,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端的承载标识具有关联关系。
结合第三方面,在一种可能实现的方式中,所述方法还包括:所述第一网络设备确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
可选地,所述第一终端设备的承载标识包括所述第一终端设备的信令无线承载SRB标识和/或第一终端设备数据无线承载DRB标识。
可选地,所述第二终端设备的承载标识包括所述第二终端设备的SRB标识和/或第二终端设备的DRB标识。
可选地,所述第一终端设备的SRB标识和所述第二终端设备的SRB标识具有关联关系。
可选地,所述第一终端设备的DRB标识和所述第二终端设备的DRB标识具有关联关系。
结合第三方面,在一种可能的实现方式中,所述方法还包括:所述第一网络设备向所述第二网络设备发送第一传输消息,所述第一传输消息用于为所述第二终端设备建立在所述第二网络设备和所述第一网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
结合第三方面,在一种可能的实现方式中,在所述第一网络设备向第二网络设备发送第一请求消息之前,所述方法还包括:所述第一网络设备接收所述第二网络设备发送的第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;所述第一网络设备向所述第二网络设备发送第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
结合第三方面,在一种可能的实现方式中,在所述第一网络设备向第二网络设备发送第一请求消息之前,所述方法还包括:所述第一网络设备接收所述第二网络设备发送的第 三请求消息,所述第三请求消息用于请求所述第一网络设备修改所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;所述第一网络设备向所述第二网络设备发送第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
结合第三方面,在一种可能的实现方式中,所述方法还包括:所述第一网络设备通过第二F1逻辑连接向所述第二网络设备发送第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
可选地,所述第二RLC承载配置中的第一配置为与所述第二终端设备的SRB1标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的SRB标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的DRB标识具有关联关系的RLC承载配置。
结合第三方面,在一种可能的实现方式中,所述第二终端设备标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
结合第三方面,在一种可能的实现方式中,在第一网络设备向第二网络设备发送第一请求消息之前,所述方法还包括:所述第一网络设备向所述第二网络设备发送F1连接建立请求消息;所述第一网络设备接收所述第二网络设备发送的F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
第四方面,提供了一种通信方法,包括:第二网络设备接收第一网络设备发送的第一请求消息,所述第一请求消息用于请求所述第二网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的标识、所述第二终端设备的承载标识以及第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;所述第二终端设备向所述第一终端设备发送第一响应消息。
结合第四方面,在一种可能的实现方式中,所述方法还包括:所述第二网络设备向所述第一网络设备发送所述第一终端设备的承载标识。
结合第四方面,在一种可能的实现方式中,所述方法还包括:所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端的承载标识具有关联关系。
结合第四方面,在一种可能实现的方式中,所述方法还包括:所述第二网络设备确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
可选地,所述第一终端设备的承载标识包括所述第一终端设备的信令无线承载SRB 标识和/或所述第一终端设备数据无线承载DRB标识。
可选地,所述第二终端设备的承载标识包括所述第二终端设备的SRB标识和/或所述第二终端设备的DRB标识。
可选地,所述第一终端设备的SRB标识和所述第二终端设备的SRB标识具有关联关系。
可选地,所述第一终端设备的DRB标识和所述第二终端设备的DRB标识具有关联关系。
结合第四方面,在一种可能实现的方式中,所述方法还包括:所述第二网络设备接收所述第一网络设备发送的第一传输消息,所述第一传输消息用于为所述第二终端设备建立所述第一网络设备和所述第二网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
结合第四方面,在一种可能实现的方式中,在第二网络设备接收第一网络设备发送的第一请求消息之前,所述方法还包括:所述第二网络设备向所述第一网络设备发送第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;所述第二网络设备接收所述第一网络设备发送的第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
结合第四方面,在一种可能实现的方式中,在第二网络设备接收第一网络设备发送的第一请求消息之前,所述方法还包括:所述第二网络设备向所述第一网络设备发送第三请求消息,所述第三请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;所述第二网络设备接收所述第一网络设备发送的第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
结合第四方面,在一种可能实现的方式中,所述方法还包括:所述第二网络设备通过第二F1逻辑连接接收所述第一网络设备发送的第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
可选地,所述第二RLC承载配置中的第一配置为与所述第二终端设备的SRB1标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的SRB标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的DRB标识具有关联关系的RLC承载配置。
结合第四方面,在一种可能的实现方式中,所述方法还包括:所述第二网络设备向所述第一终端设备发送第一消息,所述第一消息包括所述第一终端设备的承载标识,所述第一RLC承载配置以及第二RLC承载配置。
结合四方面,在一种可能的实现方式中,所述方法还包括:所述第二网络设备向所述第二终端设备发送第二消息,所述第二消息包括所述第二终端设备的承载标识和第二RLC承载配置。
结合第四方面,在一种可能的实现方式中,所述第二终端设备标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标 识包括F1接口用户标识。
结合第四方面,在一种可能的实现方式中,在所述第二网络设备接收第一网络设备发送的第一请求消息之前,所述方法还包括:所述第二网络设备接收所述第一网络设备发送的F1连接建立请求消息;所述第二网络设备向所述第一网络设备发送F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
第五方面,提供了一种通信装置,包括:收发单元,用于接收第二网络设备发送的第一请求消息,所述第一请求消息用于请求所述第一网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的承载标识以及所述第二终端设备的标识,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;
所述收发单元还用于向所述第二网络设备发送第一响应消息,所述第一响应消息包括第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系。
结合第五方面,在一种可能的实现方式中,所述收发单元还用于根据所述处理单元确定的第二终端设备的承载标识和所述第一RLC承载配置之间的关联关系传输所述第二终端设备的消息。
结合第五方面,在一种可能的实现方式中,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端的承载标识具有关联关系。
结合第五方面,在一种可能的实现方式中,所述装置还包括:处理单元,用于确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
可选地,所述第一终端设备的承载标识包括所述第一终端设备的信令无线承载SRB标识和/或所述第一终端设备数据无线承载DRB标识。
可选地,所述第二终端设备的承载标识包括所述第二终端设备的SRB标识和/或所述第二终端设备的DRB标识。
可选地,所述第一终端设备的SRB标识和所述第二终端设备的SRB标识具有关联关系。
可选地,所述第一终端设备的DRB标识和所述第二终端设备的DRB标识具有关联关系。
结合第五方面,在一种可能的实现方式中,所述收发单元还用于向所述第二网络设备发送第一传输消息,所述第一传输消息用于为所述第二终端设备建立所述第二网络设备和所述第一网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
结合第五方面,在一种可能的实现方式中,所述收发单元还用于接收所述第二网络设备发送的第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端 设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;所述收发单元还用于向所述第二网络设备发送第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
结合第五方面,在一种可能的实现方式中,所述收发单元还用于接收所述第二网络设备发送的第三请求消息,所述第三请求消息用于请求所述第一网络设备修改所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;所述收发单元还用于向所述第二网络设备发送第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
结合第五方面,在一种可能的实现方式中,所述收发单元还用于通过第二F1逻辑连接向所述第二网络设备发送第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
结合第五方面,在一种可能的实现方式中,所述第一响应消息还包括所述第二RLC承载配置中的第二配置。
可选地,所述第二RLC承载配置中的第一配置为与所述第二终端设备的SRB1标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的SRB标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的DRB标识具有关联关系的RLC承载配置。
结合第五方面,在一种可能的实现方式中,所述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
结合第五方面,在一种可能的实现方式中,所述收发单元还用于向所述第二网络设备发送F1连接建立请求消息;所述收发单元还用于接收所述第二网络设备发送的F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
第六方面,提供了一种通信装置,包括:收发单元,用于向第一网络设备发送第一请求消息,所述第一请求消息用于请求所述第一网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的承载标识以及所述第二终端设备的标识,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;
所述收发单元还用于接收所述第一网络设备发送的第一响应消息,所述第一响应消息包括第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系。
结合第六方面,在一种可能的实现方式中,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端设备的承载标识具有关联关系。
结合第六方面,在一种可能的实现方式中,所述装置还包括:处理单元,用于确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
可选地,所述第一终端设备的承载标识包括所述第一终端设备的信令无线承载SRB标识和/或所述第一终端设备数据无线承载DRB标识。
可选地,所述第二终端设备的承载标识包括所述第二终端设备的SRB标识和/或所述第二终端设备的DRB标识。
可选地,所述第一终端设备的SRB标识和所述第二终端设备的SRB标识具有关联关系。
可选地,所述第一终端设备的DRB标识和所述第二终端设备的DRB标识具有关联关系。
结合第六方面,在一种可能的实现方式中,所述收发单元还用于接收所述第一网络设备发送的第一传输消息,所述第一传输消息用于为所述第二终端设备建立所述第二网络设备和所述第一网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
结合第六方面,在一种可能的实现方式中,所述收发单元还用于向所述第一网络设备发送第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;所述收发单元还用于接收所述第一网络设备发送的第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
结合第六方面,在一种可能的实现方式中,所述收发单元还用于向所述第一网络设备发送第三请求消息,所述第三请求消息用于请求所述第一网络设备修改所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;所述收发单元还用于接收所述第一网络设备发送的第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
结合第六方面,在一种可能的实现方式中,所述收发单元还用于通过第二F1逻辑连接接收所述第一网络设备发送的第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
结合第六方面,在一种可能的实现方式中,所述第一响应消息还包括所述第二RLC承载配置中的第二配置。
可选地,所述第二RLC承载配置中的第一配置为与所述第二终端设备的SRB1标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的SRB标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的DRB标识具有关联关系的RLC承载配置。
结合第六方面,在一种可能的实现方式中,所述收发单元还用于向所述第一终端设备 发送第一消息,所述第一消息包括所述第一终端设备的承载标识,所述第一RLC承载配置以及第二RLC承载配置。
结合第六方面,在一种可能的实现方式中,所述收发单元还用于向所述第二终端设备发送第二消息,所述第二消息包括所述第二终端设备的承载标识和第二RLC承载配置。
结合第六方面,在一种可能的实现方式中,所述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
结合第六方面,在一种可能的实现方式中,所述收发单元还用于接收所述第一网络设备发送的F1连接建立请求消息;所述收发单元还用于向所述第一网络设备发送F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
第七方面,提供了一种通信装置,包括:收发单元,用于向第二网络设备发送第一请求消息,所述第一请求消息用于请求所述第二网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的标识、所述第二终端设备的承载标识以及第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;所述收发单元还用于接收所述第二网络设备发送的第一响应消息。
结合第七方面,在一种可能的实现方式中,所述收发单元还用于根据所述处理单元确定的所述第二终端设备的承载标识和所述第一RLC承载配置之间的关联关系传输所述第二终端设备的消息。
结合第七方面,在一种可能的实现方式中,所述收发单元还用于接收所述第二网络设备发送的所述第一远端设备的承载标识。
结合第七方面,在一种可能的实现方式中,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端的承载标识具有关联关系。
结合第七方面,在一种可能的实现方式中,所述装置还包括:处理单元,用于确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
可选地,所述第一终端设备的承载标识包括所述第一终端设备的信令无线承载SRB标识和/或所述第一终端设备数据无线承载DRB标识。
可选地,所述第二终端设备的承载标识包括所述第二终端设备的SRB标识和/或所述第二终端设备的DRB标识。
可选地,所述第一终端设备的SRB标识和所述第二终端设备的SRB标识具有关联关系。
可选地,所述第一终端设备的DRB标识和所述第二终端设备的DRB标识具有关联关系。
结合第七方面,在一种可能的实现方式中,所述收发单元还用于向所述第二网络设备发送第一传输消息,所述第一传输消息用于为所述第二终端设备建立在所述第二网络设备和所述第一网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
结合第七方面,在一种可能的实现方式中,所述收发单元还用于接收所述第二网络设备发送的第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;所述收发单元还用于向所述第二网络设备发送第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
结合第七方面,在一种可能的实现方式中,所述收发单元还用于接收所述第二网络设备发送的第三请求消息,所述第三请求消息用于请求所述第一网络设备修改所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;
所述收发单元还用于向所述第二网络设备发送第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
结合第七方面,在一种可能的实现方式中,所述收发单元还用于通过第二F1逻辑连接向所述第二网络设备发送第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
可选地,所述第二RLC承载配置中的第一配置为与所述第二终端设备的SRB1标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的SRB标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的DRB标识具有关联关系的RLC承载配置。
结合第七方面,在一种可能的实现方式中,所述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
结合第七方面,在一种可能的实现方式中,所述收发单元还用于向所述第二网络设备发送F1连接建立请求消息;所述收发单元还用于接收所述第二网络设备发送的F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
第八方面,提供了一种通信装置,包括:收发单元,所述收发单元用于接收第一网络设备发送的第一请求消息,所述第一请求消息用于请求所述第二网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的标识、所述第二终端设备的承载标识以及第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;所述收发单元还用 于向所述第一终端设备发送第一响应消息。
结合第八方面,在一种可能的实现方式中,所述收发单元还用于向所述第一网络设备发送所述第一终端设备的承载标识。
结合第八方面,在一种可能的实现方式中,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端设备的承载标识之间具有关联关系。
结合第八方面,在一种可能的实现方式中,所述装置还包括:处理单元,用于确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
可选地,所述第一终端设备的承载标识包括所述第一终端设备的信令无线承载SRB标识和/或所述第一终端设备数据无线承载DRB标识。
可选地,所述第二终端设备的承载标识包括所述第二终端设备的SRB标识和/或所述第二终端设备的DRB标识。
可选地,所述第一终端设备的SRB标识和所述第二终端设备的SRB标识具有关联关系。
可选地,所述第一终端设备的DRB标识和所述第二终端设备的DRB标识具有关联关系。
结合第八方面,在一种可能的实现方式中,所述收发单元还用于接收所述第一网络设备发送的第一传输消息,所述第一传输消息用于为所述第二终端设备建立所述第一网络设备和所述第二网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
结合第八方面,在一种可能的实现方式中,所述收发单元还用于向所述第一网络设备发送第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;
所述收发单元还用于接收所述第一网络设备发送的第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
结合第八方面,在一种可能的实现方式中,所述收发单元还用于向所述第一网络设备发送第三请求消息,所述第三请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;
所述收发单元还用于接收所述第一网络设备发送的第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
结合第八方面,在一种可能的实现方式中,所述收发单元还用于通过第二F1逻辑连接接收所述第一网络设备发送的第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
可选地,所述第二RLC承载配置中的第一配置为与所述第二终端设备的SRB1标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的SRB标识具有关联关系的RLC承载配置。
可选地,所述第二RLC承载配置中的第二配置为与所述第二终端设备的DRB标识具有关联关系的RLC承载配置。
结合第八方面,在一种可能的实现方式中,所述收发单元还用于向所述第一终端设备发送第一消息,所述第一消息包括所述第一终端设备的承载标识,所述第一RLC承载配置以及第二RLC承载配置。
结合第八方面,在一种可能的实现方式中,所述收发单元还用于向所述第二终端设备发送第二消息,所述第二消息包括所述第二终端设备的承载标识和第二RLC承载配置。
结合第八方面,在一种可能的实现方式中,所述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
结合第八方面,在一种可能的实现方式中,所述收发单元还用于接收所述第一网络设备发送的F1连接建立请求消息;
所述收发单元还用于向所述第一网络设备发送F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
第九方面,提供了一种通信装置,包括存储器和处理器,所述存储器用于存储计算机程序,所述处理器用于从存储器调用并运行所述计算机程序,使得所述通信装置用于执行上述第一方面以及第一方面的各种实现方式中的方法。
第十方面,提供了一种通信装置,包括存储器和处理器,所述存储器用于存储计算机程序,所述处理器用于从存储器调用并运行所述计算机程序,使得所述通信装置用于执行上述第二方面以及第二方面的各种实现方式中的方法。
第十一方面,提供了一种通信装置,包括存储器和处理器,所述存储器用于存储计算机程序,所述处理器用于从存储器调用并运行所述计算机程序,使得所述通信装置用于执行上述第三方面以及第三方面的各种实现方式中的方法。
第十二方面,提供了一种通信装置,包括存储器和处理器,所述存储器用于存储计算机程序,所述处理器用于从存储器调用并运行所述计算机程序,使得所述通信装置用于执行上述第四方面以及第四方面的各种实现方式中的方法。
第十三方面,提供了一种计算机存储介质,所述计算机存储介质存储有计算机程序(也可以称为代码,或指令)当其在计算机上运行时,使得计算机执行上述第一方面以及第一方面中任一种可能实现方式中的方法。
第十四方面,提供了一种计算机存储介质,所述计算机存储介质存储有计算机程序(也可以称为代码,或指令)当其在计算机上运行时,使得计算机执行上述第二方面以及第二方面中任一种可能实现方式中的方法。
第十五方面,提供了一种计算机存储介质,所述计算机存储介质存储有计算机程序(也可以称为代码,或指令)当其在计算机上运行时,使得计算机执行上述第三方面以及第三方面中任一种可能实现方式中的方法。
第十六方面,提供了一种计算机存储介质,所述计算机存储介质存储有计算机程序(也可以称为代码,或指令)当其在计算机上运行时,使得计算机执行上述第四方面以及第四方面中任一种可能实现方式中的方法。
第十七方面,提供了一种通信系统,包括如第五方面所述的通信装置和第四方面所述的通信装置。
第十八方面,提供了一种通信系统,包括如第七方面所述的通信装置和第八方面所述的通信装置。
基于上述方案,本申请实施例的通信方法和通信装置,通过在第一网络设备和第二网络设备的信息交互中,携带第一终端设备的承载标识和第二终端设备的承载标识,从而能够确定第一RLC承载配置和第二RLC承载配置之间的关联关系,由此能够正确地转发接收端终端设备的消息。
附图说明
图1是本申请实施例提供的一种场景的示意图。
图2是本申请实施例提供的一种通信系统的示意性图。
图3是本申请实施例提供的一种基站的示意图。
图4是本申请实施例提供的一种可能的用户面协议栈的示意图。
图5是本申请实施例提供的一种可能的控制面协议栈的示意图。
图6是本申请实施例提供的一种通信方法的示意性流程图。
图7是本申请实施例提供的一种通信方法的再一示意性流程图。
图8是本申请实施例提供的一种通信方法的再一示意性流程图图。
图9是本申请实施例提供的一种通信方法的再一示意性流程图。
图10是本申请实施例提供的一种通信方法的再一示意性流程图。
图11是本申请实施例提供的一种通信方法的再一示意性流程图。
图12是本申请实施例提供的一种通信方法的再一示意性流程图。
图13是本申请实施例提供的一种通信装置的示意性框图。
图14是本申请实施例提供的一种通信装置的再一示意性框图。
具体实施方式
下面将结合附图,对本申请中的技术方案进行描述。
图1示出了应用本申请实施例的一种场景示意性架构图。如图1所示,该通信系统100可以包括网络设备101、第一终端设备102和第二终端设备103,其中,第一终端设备102为第二终端设备103提供中继服务,第二终端设备103通过第一终端设备102与网络设备101进行信息的交互,其中,第二终端设备103和第一终端设备102一般通过侧行链路进行通信,包括但不限于单播、组播或广播的方式。通过在网络设备101和第二终端设备103之间部署一个第一终端设备102,一方面提升了网络系统的性能,如覆盖增强或网络提升,另一方面可以改善室内用户体验。
应理解,本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(global system of mobile communication,GSM)系统、码分多址(code division multiple access,CDMA)系统、宽带码分多址(wideband code division multiple access,WCDMA)系统、通用分组无线业务(general packet radio service,GPRS)、长期演进(long term evolution,LTE)系统、LTE频分双工(frequency division duplex,FDD)系统、LTE时分 双工(time division duplex,TDD)、通用移动通信系统(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)通信系统、未来的第五代(5th generation,5G)系统或新无线(new radio,NR)等。
还应理解,本申请实施例中的终端设备可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol,SIP)电话、无线本地环路(wireless local loop,WLL)站、个人数字处理(personal digital assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备,未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network,PLMN)中的终端设备等,本申请实施例对此并不限定。
还应理解,本申请实施例中的网络设备可以是用于与终端设备通信的设备,该网络设备可以是全球移动通讯(global system of mobile communication,GSM)系统或码分多址(code division multiple access,CDMA)中的基站(base transceiver station,BTS),也可以是宽带码分多址(wideband code division multiple access,WCDMA)系统中的基站(nodeb,NB),还可以是LTE系统中的演进型基站(evolutional nodeb,eNB或eNodeB),还可以是云无线接入网络(cloud radio access network,CRAN)场景下的无线控制器,或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等,本申请实施例并不限定。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
此外,在本申请实施例中,终端设备还可以是物联网(internet of things,IoT)系统中的终端设备,IoT是未来信息技术发展的重要组成部分,其主要技术特点是将物品通过通信技术与网络连接,从而实现人机互连,物物互连的智能化网络。
作为实例而非限定,本申请实施例中以5G通信系统,基站以在CU-DU架构下的基站为例进行说明。
图2示出了应用本申请实施例的一种通信系统的示意性图,在5G系统中,5G接入点由基站节点下一代无线接入网(next generation radio access network,NG-RAN)构成,NG-RAN节点可能是一个5G新基站节点(generation nodeb,gNB),也可能是一个LTE演进基站节点(next generation enodeb,ng-eNB)。其中,gNB使用NR的用户面和控制面协议栈,而ng-eNB除服务数据适应协议(Service Data Adaptation Protocol,SDAP)层外使用演进的通用陆地无线接入(evolved universal terrestrial radio access,E-UTRA)的用户 面和控制面协议栈。
gNB和gNB、ng-eNB和ng-eNB、gNB和ng-eNB之间通过Xn接口互连。gNB和ng-eNB通过NG接口连接到5G核心网,其中控制面通过NG-C接口连接到接入网和移动性管理模块(access and mobility management function,AMF),通过用户面NG-U接口连接到用户面功能(user plane function,UPF)模块。
gNB功能被重构为CU/DU两个功能实体,CU与DU功能的切分根据其处理内容的实时性特点进行区分。其中,CU主要包括非实时的无线高层协议栈功能,同时支持部分核心网功能下沉和边缘应用的部署,而DU主要处理物理层功能和实时性需求较高的2层协议栈功能。
图3示出了应用本申请实施例的一种基站的示意性图。如图3所示,基站可以由CU和DU构成,即对原接入网中的基站的功能进行拆分,将基站的部分功能部署在一个CU,将剩余功能部署在DU,多个DU共用一个CU,一方面节省了成本,另一方面易于网络扩展。CU和DU可以按照协议栈进行切分,其中一种可能的方式是将无线资源控制(radio resource control,RRC)层,SDAP层以及分组数据汇聚协议(packet data convergence protocol,PDCP)层部署在CU,其余的无线链路控制(radio link control,RLC)层,介质访问层(media access control,MAC)层以及物理层(physical,PHY)部署在DU。
在5G系统中,CU和DU之间通过F1接口连接,CU和CU之间通过Xn接口连接以实现基站之间的信息交互,CU代表gNB与5G核心网通过NG接口连接以实现基站和核心网之间的信息交互。
作为实例而非限定,以用户设备到网络中继的通信系统为例,在该应用场景下,基站采用CU-DU架构,中继UE和基站的LTE或NR空口间存在适配层。适配层的主要目的是在RRC消息传输或者数据传输过程中,携带远端UE标识和中继UE的无线承载(radio bearer,RB)标识,或者携带远端UE标识和侧行链路或PC5口标识。适配层可以部署在CU协议栈中,也可以部署在DU的协议栈中。本申请以在DU的协议栈中部署适配层的部署方式进行示例性的说明。
图4示出了一种适配层在DU时的用户面协议栈,如图4所示,远端UE的用户面协议栈包括与CU之间的PDCP层,以及与中继UE之间通过PC5接口连接的RLC层、MAC层、PHY层;中继UE的用户面协议栈包括与远端UE之间通过PC5接口连接的RLC层、MAC层、PHY层,以及与DU之间通过Uu口连接的RLC层、MAC层、PHY层、适配层;DU的用户面协议栈包括与中继UE之间通过Uu接口连接的适配层、RLC层、MAC层、PHY层、以及与CU之间进行信息交互的适配层层1/层2(Layer 1/Layer 2,L1/L2)层、用户数据报协议/互联网协议(user datagram protocol/internet protocol,UDP/IP)层和通用分组无线服务技术隧道协议(general packet radio service tunneling protocol user plane,GTP-U)层;CU的用户面协议栈包括L1/L2层、UDP/IP层、GTP-U层和PDCP层。远端UE的RLC层、MAC层、PHY层和中继UE的RLC层、MAC层、PHY层通过PC5接口进行信息的交互,远程UE的PDCP层与CU之间通过Uu接口建立端到端的连接以进行信息的交互,中继UE的RLC层、MAC层、PHY层与DU的RLC层、MAC层、PHY层之间通过Uu接口进行信息的交互。
图5示出了一种适配层在DU时的控制面协议栈,如图5所示,远端UE的控制面协 议栈包括与CU之间的非接入层(non-access stratum,NAS)、PDCP层和RRC层,以及与中继UE之间的通过PC5接口连接的RLC层、MAC层、PHY层;中继UE的控制面协议栈包括与远端UE之间通过PC5接口连接的RLC层、MAC层、PHY层,以及与DU之间通过Uu接口连接的RLC层、MAC层、PHY层、适配层;DU的控制面协议栈包括与中继UE之间通过Uu接口连接的适配层、RLC层、MAC层、PHY层,以及与CU之间进行信息交互的L1/L2层、流控制传输协议/互联网协议(Stream Control Transmission Protocol/Internet Protocol,SCTP/IP)层,F1应用程序协议(F1Application Protocol,F1AP)层;CU的控制面协议栈包括NAS层、RRC层、PDCP层、L1/L2层、SCTP/IP层和F1AP层。
当一个远端UE通过中继UE向CU-DU架构的基站传输消息时,如果是基于图4和图5所示的协议栈,会出现DU不能按照CU的指示正确转发远端UE的消息。因为CU向DU发送远端UE的上下文建立请求消息时,请求消息中携带的是QoS信息和承载配置标识,此时,DU按照CU的请求消息建立的RLC承载是中继UE和远端UE之间的用于远端UE的RLC承载。当CU生成了完整的远端UE的承载配置后通过下行RRC传输消息请求DU在空口转发远端UE的消息,这时下行RRC传输消息中携带的是PDCP承载标识,但是DU通过该PDCP承载标识只能识别相关的用于中继UE和远端UE之间的RLC承载,DU无法确定先通过中继UE和DU之间的哪个RLC承载把消息传输给中继UE,在由中继UE通过相关的RLC承载转发消息至终端UE。
基于上述原理可知,在适配层部署在DU的协议栈的场景下,通过维护远端UE的上下文和中继UE的上下文,使得CU和DU都能确定中继UE和远端UE之间的承载和中继UE和DU之间的承载的关联关系,确保DU能够按照CU的指示正确传输远端UE的消息。
示例性的,图6为本申请提供了一种通信方法的一个实施例的流程图,该方法具体包括:
S601,第二网络设备确定第一终端设备的承载标识和第二终端设备的承载标识的关联关系。
S602,第二网络设备向第一网络设备发送第一请求消息。
S603,第一网络设备确定第一RLC承载配置和第二RLC承载配置之间的关联关系。
S604,第一网络设备向第二网络设备发送第一响应消息。
S605,第二网络设备确定第一RLC承载配置和第二RLC承载配置之间的关联关系。
具体而言,当第二网络设备在接收到第二终端设备的标识后,第二网络设备能够确定该第二终端设备是通过哪一个第一终端设备为该第二终端设备的提供中继服务,此时,第二网络设备需要确定第一终端设备的承载标识和第二终端设备的承载标识之间的关联关系,并将该关联关系发送至第一网络设备,即在步骤602中,第一网络设备向第二网络设备发送第一请求消息,该请求消息中携带第一终端设备的标识、第一终端设备的承载标识和第二终端设备的承载标识。该请求消息用于请求第一网络设备修改第一终端设备的上下文。
应理解,一个无线承载(radio bearer,RB)由PDCP实体,无线链路控制(radio link control,RLC)实体或者说无线链路控制承载(radio link control bearer,RLC bearer)和逻 辑信道(logical channel,LC)组成。无线承载的配置即该无线承载的PDCP实体,RLC实体和逻辑信道的配置。无线承载分为信令无线承载(signal radio bearer,SRB)和数据无线承载(data radio bearer,DRB)。
应理解,第二网络设备确定第一终端设备承载标识和第二终端设备承载标识之间的关联关系,可选地,第二网络设备可以请求为第一终端设备增加承载标识,然后确定该新增的承载标识与第二远端设备的承载标识之间的关联关系。或者,第二网络设备也可以更改第一终端设备目前现有的承载标识,并确定其与第二远端设备的承载标识之间的关联关系。
可选地,本申请实施例中的承载标识可以为DRB标识或者SRB标识。
应理解,第一终端设备的承载标识为第一终端设备和第二网络设备之间的承载标识,第一终端设备的承载标识可以是第一终端设备的SRB标识,也可以是第一终端设备的DRB标识。
应理解,第二终端设备的承载标识为第二终端设备和第二网络设备之间的承载标识,第二终端设备的承载标识可以是第二终端设备的SRB标识,也可以是第二终端设备的DRB标识。
应理解,第一终端设备承载标识和第二终端设备承载标识之间的关联关系可以为第一终端设备的SRB标识和第二终端设备的SRB的标识之间的关联关系,和/或第一终端设备的DRB标识和第二终端设备的DRB的标识之间的关联关系。
可选地,第一终端设备的标识可以为接口标识或空口标识,例如,该中继UE的标识可以是C-RNTI,也可以是F1接口的用户标识,例如,gNB-CU UE F1AP ID、gNB-DU UE F1AP ID。
可选地,第二终端设备的标识可以为接口标识或空口标识,例如,该远端UE的标识可以是C-RNTI或者本地标识,也可以是F1接口的用户标识,例如gNB-CU UE F1AP ID、gNB-DU UE F1AP ID。
可选地,第一请求消息可以为用户上下文修改请求消息,该第一用户上下文修改请求消息中携带第一终端设备的标识,第一终端设备的SRB标识和第二终端设备的SRB1。
可选地,第一请求消息可以为用户上下文修改请求消息,该第一用户上下文修改请求消息中携带第一终端设备的标识,第一终端设备的承载标识标识和第二终端设备的除SRB1之外的承载标识。
在步骤603和步骤604中,第一网络设备接收到第二网络设备发送的第一请求消息,确认是为第一终端设备修改上下文并根据该第一请求消息中携带的信息生成相关联的RLC承载配置。具体来说,第一网络设备根据第一终端设备的承载标识生成或者更改第一RLC承载配置,也就是说,第一网络设备接收的第一终端设备的承载标识和第二终端设备的承载标识之间是有关联关系的,第一终端设备生成的第一RLC承载配置中也与该关联关系有关,即第一RL承载配置、第一终端设备承载标识和第二终端设备承载标识之间具有关联关系,而在第一网络设备中已经存在第二RLC承载配置,或者第一网络设备根据第二终端设备的承载标识生成第二RLC承载配置,该第二RLC承载配置与第二终端设备具有关联关系,此时第一网络设备可以确定第一RLC承载配置和第二RLC承载配置的关联关系。
可选地,在步骤S601之前,第一网络设备向第二网络设备发送第一传输消息,该第一传输消息用于为第二终端设备建立第二网络设备和第一网络设备之间的F1逻辑连接,第一传输消息中携带第一终端设备的标识和第二RLC承载配置中的第一配置。
可选地,在步骤S601之前,第一网络设备向第二网络设备发送第二传输消息,第二传输消息通过第二F1逻辑连接进行传输,该第二F1连接连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,该第二传输消息包括第二终端设备的标识和第二RLC承载配置中的第一配置。
可选地,第一传输消息可以为初始上行RRC传输消息。
可选地,第二传输消息可以为上行RRC传输消息。
可选地,在步骤S601之前,第二网络设备向第一网络设备发送的第二请求消息,该第二请求消息用于请求第一网络设备建立第二终端设备的上下文,该第二请求消息包括第二终端设备的承载标识,第一网络设备根据第二终端设备的承载标识生成响应的第二RLC承载配置中的第二配置。之后第一网络设备向第二网络发送第二响应消息,第二响应消息中携带第二RLC承载配置中的第二配置。
可选地,在步骤S601之前,第二网络设备向第一网络设备发送第三请求消息,第三请求消息用于请求第一网络设备修改第二终端设备的上下文,该请求消息中携带第二终端设备的承载标识,第一网络设备根据第二终端设备的承载标识生成响应的第二RLC承载配置中的第二配置。之后第一网络设备向第二网络发送第三响应消息,第三响应消息中携带第二RLC承载配置中的第二配置。
可选地,第二请求消息中还可以携带第一终端设备的承载标识。
可选地,第三请求消息中还可以携带第一终端设备的承载标识。
应理解,第一RLC承载配置与第一终端设备的承载标识具有关联关系,可选地,第一RLC承载配置与第一终端设备的DRB标识具有关联关系;可选地第一RLC承载配置与第一终端设备的SRB标识具有关联关系。
应理解,第二RLC承载配置与第二终端设备的承载标识具有关联关系,可选地,第二RLC承载配置与第二终端设备的DRB标识具有关联关系;可选地第二RLC承载配置与第二终端设备的SRB标识具有关联关系。
应理解,第一RLC承载配置与第二RLC承载配置的关联关系可以为与第一终端设备相关联的SRB标识和与第二终端设备相关联的SRB标识之间具有关联关系。或者,第一RLC承载配置与第二RLC承载配置的关联关系可以为与第一终端设备相关联的DRB标识和与第二终端设备相关联的DRB标识之间具有关联关系。
为了第一网络设备和第一终端设备能够准确传输第二终端设备的消息,也需要让第二网络设备知道第一RLC承载配置和第二RLC承载配置之间的关联关系。因此,在步骤S604中,第一网络设备向第二网络设备发送第一响应消息,该第一响应消息中携带第一RLC承载配置,该第一响应消息用于让第二网络设备知道第一网络设备已经为第一终端设备修改上下文。同样地,第二网络设备根据第一终端设备的承载标识和第二终端设备的承载标识之间的关联关系,进一步能确定第一RLC承载配置和第二RLC承载配置之间的关联关系。
示例性地,上述过程中所涉及的关联关系可以为映射关系,即第一终端设备的承载标 识和第二终端设备的承载标识之间的映射关系,第一RLC承载配置和第二RLC承载配置之间的映射关系,该映射关系可以如下表1所示:
表1
Figure PCTCN2020122596-appb-000001
在本申请实施例中,通过维护第一终端设备的上下文,第一网络设备和第二网络设备都知道第一RLC承载配置和第二RLC承载配置之间的关联关系。因此,当第二网络设备指示第一网络设备转发第二终端设备的消息时,第一网络设备能根据第一RLC承载配置和第二RLC承载配置之间的关联关系能正确转发第二终端设备的消息。
图7示出了本申请实施例提供的一种通信方法的另一示意图,在图7中,以第一网络设备为DU,第一网络设备为CU,第一终端设备为中继UE#1,第二终端设备为远端UE#2为例进行说明,图7中具体的方法包括:
S701,DU向CU发送初始上行RRC传输消息。
S702,CU向DU发送第一下行RRC传输消息。
示例性的,当中继UE#1和远端UE#2建立单播通信时,此时,中继UE#1需要为其接入的远端UE#2分配本地标识。当远端UE#2请求建立RRC连接时,该RRC建立请求消息中携带本地标识,所以当DU接收到远端UE#2的RRC建立请求消息时,DU根据该消息中携带的本地标识知道中继UE#1新接入了一个远端设备,该远端设备为远端UE#2。DU此时知道要为远端UE#2建立无线承载的配置,所以DU先根据远端UE#2的承载标识生成与其相关联的RLC承载配置#1(即第二RLC承载配置中的第一配置),并需要将RLC承载配置#1发送给CU。
示例性的,本申请实施例提供一种为远端设备建立F1逻辑连接,即DU向CU发起初始上行RRC传输消息,该传输消息用于为远端UE#2建立在CU和DU之间的第一F1逻辑连接,也就是说,该第一F1逻辑连接是用来专门传输UE#2消息的连接通道。该传输消息中携带中继UE#1的标识和RLC承载配置#1。CU接收到该传输消息,能够确认是为远端UE#1建立F1逻辑连接,且根据该第一传输消息中的中继UE#1的标识知道该远端UE#2是通过中继UE#1通中继服务,根据该第一传输消息中携带的RLC承载配置#1生成完整的无线承载的配置,即将RLC承载配置#1、PDCP配置和SDAP配置组合生成一个完整的无线承载的配置,并将该无线承载的配置发送给DU,即步骤S702中的第一下行RRC传输消息,该第一下行RRC传输消息中携带中继UE#1的标识、远端UE#2的标识和无线承载的配置。DU接收到第一下行RRC传输消息后,将无线承载配置通过已经建立的SRB0通道经中继UE#1转发给远端UE#2。
可选地,中继UE#1的标识可以为接口或空口标识,例如gNB-CU UE F1AP ID、gNB-DU UE F1AP ID或者C-RNTI。
需要说明的是,在本申请实施中,RLC承载配置#1是用在远端UE#2和中继UE#1之间传输远端UE#2消息的承载配置。
作为示例而非限定,RLC承载配置#1是与SRB1相关联的RLC承载配置。
作为示例而非限定,以下将以远端UE#2的SRB1的建立过程为例进行说明。
S703,确定远端UE#2的SRB1和中继UE#1的SRB标识之间的映射关系。
具体而言,当CU知道中继UE#1新接入了一个远端UE#2,为了更好地传输远端UE#2的消息,此时需要更改中继UE#1的承载。首先CU先确定中继UE#1的SRB标识和远端UE#2的SRB1标识之间的映射关系。
作为示例而非限定,CU可以请求中继UE#1增加SRB标识,然后可以确定该新增的SRB标识与远端UE#2的SRB1的映射关系。或者,CU也可以更改中继UE1目前现有的SRB标识,并确定其与远端UE#2的SRB1之间的映射关系。
其次,在步骤S704中,CU向DU发送第一用户上下文修改请求消息。
具体而言,CU向DU发送第一用户上下文修改请求消息,该请求消息中携带远端UE#2的标识、远端UE#2的SRB1和中继UE#1的SRB标识,其中该消息中携带的远端UE#2的SRB1与中继UE#1的SRB标识具有映射关系,该请求消息用于请求DU修改中继UE#1的上下文。
S705,DU确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
具体来说,当DU接收到第一用户上下文修改请求消息后,确定是为中继UE#1修改上下文。DU根据请求消息中的中继UE#1的SRB标识生成或者更改与其相关联的RLC配置#2,也就是说,此时DU知道中继UE#1的SRB标识和远端UE#2的SRB1之间的映射的关系。故而能进一步确定RLC承载配置#2、中继UE#1的SRB标识和远端UE#2的SRB1之间的映射的关系。且在DU中存储有与远端UE#2的SRB1相关联的RLC承载配置#1,因此,DU能够确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
应理解,RLC承载配置#2是用于在中继UE#1和DU之间传输远端UE#2消息的承载配置。
S706,DU向CU发送第一用户上下文修改响应消息。
具体来说,DU向CU发送第一用户上下文修改响应消息,该响应消息用于告知CU已经完成中继UE#1的上下文的修改,且该响应消息中携带远端UE#2的标识和RLC承载配置#2。
S707,CU确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
具体而言,为了让CU也需要知道RLC承载配置#2和RLC承载配置#1之间的映射关系。此时,CU根据接收到的第一用户上下文修改响应消息中携带的RLC承载配置#2确定其与RLC承载配置#1之间的映射关系。CU中存储有远端UE#2的SRB1和中继UE#1的SRB的标识之间的映射关系,其RLC承载配置#1与远端UE#2的SRB1具有映射关系,RLC承载配置#2与中继UE#1的SRB标识具有映射关系,因而能够确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
S708,CU向中继UE#1发送第二下行RRC传输消息。
具体而言,为了让中继UE#1能够正确转发远端UE#2的消息,CU也需要将RLC承载配置#2和RLC承载配置#1发送给中继UE#1。因此,CU向中继UE#1发送第二下行RRC传输消息,该消息中携带中继UE#1的标识、RLC承载配置#2和RLC承载配置#1。
中继UE#1根据RLC承载配置#2建立在中继UE#1和DU之间的承载,根据RLC承载配置#1建立在中继UE#1和远端UE#2之间的承载。或者,远端UE#2根据RLC承载配 置#1建立在中继UE#1和远端UE#2之间的承载,此时,中继UE#1知道其根据RLC承载配置#2建立在中继UE#1和DU之间的承载对应的是中继UE#1和远端UE#2之间的承载中的哪一个承载。
至此,远端UE#2的SRB1的承载建立完成。
示例性的,当CU为远端UE#2建立RRC连接后,远端UE#2需要向CU反馈,此时远端UE#2通过基于RLC承载配置#1建立的承载向中继UE#1发送RRC建立完成的消息,中继UE#1知道RLC承载配置#1和RLC承载配置#2之间的映射关系,因此中继UE#1知道该消息是从基于RLC承载配置#1建立的承载发送的,因而也就知道通过中继UE#1和DU之间的从基于RLC承载配置#2建立的承载来进行发送,从而能够正确转发RRC建立完成消息。
当上述过程建立完SRB1后需要建立除SRB1以外的其他无线承载,包括DRB或者SRB,作为示例而非限定,以下过程将以建立或更改DRB承载进行说明。
S709,CU向DU发送用户上下文建立请求消息。
具体而言,当核心网、应用层确定该远端UE#2有新的业务需求时,也就是通过QoS映射关系需要建立新的DRB承载,此时,CU向DU发送用户上下文建立请求消息,该请求消息中携带远端UE#2的DRB的标识,该请求消息用于为远端UE#2建立上下文。
S710,DU生成RLC承载配置#3(即第二RLC承载配置中的第二配置)。
具体而言,DU接收到用户上下文建立请求消息后,确定是为远端UE#2建立上下文,并根据该请求消息中携带的远端UE#2的DRB标识生成与其相关联的RLC承载配置#3,该RLC承载配置#3于在中继UE#1和远端UE#1之间建立RLC承载以传输远端UE#2的消息。
可选地,如果步骤S709中携带的是远端UE#2的SRB标识,则DU根据远端UE#2的SRB标识生成与其相关联的RLC承载配置。
S711,DU向CU发送用户上下文建立响应消息。
DU为远端UE#2建立上下文后,需要向CU发送用户上下文建立响应消息,该响应消息中携带RLC承载配置#3。
步骤S709至步骤S711是建立远端UE#2的上下文,可选地,当远端UE#2的上下文已经建立时,远端UE的DRB标识发生变化时,需要更改远端UE#2的上下文。此时,S709可以为DU向CU发送第三用户上下文修改请求消息,该请求消息中携带远端UE#2的DRB的标识,该请求消息用于为远端UE#2修改上下文;S710根据远端UE#2的DRB标识生成的RLC承载配置#3,此时S711可以为DU向CU发送的第三用户上下文修改响应消息,该响应消息可以为远端UE#2的上下文修改响应消息,同样的,该上下文修改响应消息中携带RLC承载配置#3。
S712,CU确定远端UE#2的DRB标识和中继UE#1的DRB标识之间的映射关系。
具体而言,当远端UE#2的承载发生变化时,此时CU为远端UE#2增加中继UE#1的DRB标识,然后确定该新增的DRB标识与远端UE#2的DRB标识之间的映射关系。或者,CU也可以更改中继UE#1目前现有的DRB标识,并确定其与远端UE#2的DRB标识之间的映射关系。
S713,CU向DU发送第二用户上下文修改请求消息。
具体而言,当远端UE#2的上下文发生变化时,即远端UE#2的上下文建立或者远端UE#2的上下文修改时,中继UE#1需要更新上下文。此时,CU向DU发送第二用户上下文修改请求消息,该请求消息中携带远端UE#2的标识、远端UE#2的DRB标识和中继UE#1的DRB标识,其中该请求消息中携带的远端UE#2的DRB标识与中继UE#1的DRB标识具有映射关系,该请求消息用于请求DU修改中继UE#1的上下文。其中,远端UE#2的DRB标识与中继UE#1的DRB标识的映射关系是在步骤S716中通过CU来确定的。远端UE#2的DRB标识是远端UE#2和CU之间的承载标识,中继UE#1的DRB标识是中继UE#1和CU之间的承载标识。
S714,DU确定RLC承载配置#4和RLC承载配置#3之间的映射关系。
具体而言,当DU接收到第二用户上下文修改请求消息后,确定需要修改中继UE#2的上下文,并根据该请求消息中携带的中继UE#1的DRB标识生成相关联的RLC承载配置#4(即第一RLC承载配置),因为中继UE#1的DRB标识与远端UE#2的DRB标识具有映射关系,且RLC承载配置#3也是DU根据远端UE#2的DRB标识生成的,所以,DU需要确定RLC承载配置#4和RLC承载配置#3之间的映射关系。进一步,DU也需要确定RLC承载配置#4、远端UE#2的DRB标识和中继UE#1的DRB标识之间的映射关系。
S715,DU向CU发送第二用户上下文修改响应消息,该响应消息中携带RLC承载配置#4。
S716,DU确定RLC承载配置#4和RLC承载配置#3之间的映射关系。
具体而言,CU接收到第二用户上下文修改响应消息后,知道DU已经为中继UE#1修改了上下文,此时CU也需要确定RLC承载配置#4和RLC承载配置#3之间的映射关系。因为,CU已经确定了中继UE#1的DRB标识和远端UE#2的DRB标识之间的映射关系,且在步骤S711中,DU接收了与远端UE#2的DRB标识相关联的RLC承载配置#3。因此,CU可以进一步确定RLC承载配置#4和RLC承载配置#3之间的映射关系,即DU通过维护中继UE#1的DRB标识和远端UE#2的DRB标识之间的映射关系来维护RLC承载配置#4和承载配置#3之间的映射关系。
S717,CU向中继UE#1发送第三下行RRC传输消息。
具体而言,通过上述步骤,CU处存储RLC承载配置#4和RLC承载配置中#3,此时,中继UE#1根据RLC承载配置#4建立DU和中继UE#1之间的承载,以便中继UE#1和DU都能够正确转发远端UE#2的消息。因此,CU通过第三下行RRC传输消息将中继UE#1的标识、RLC承载配置#4以及承载配置中#3发送至中继UE。
S718,CU向远端UE#2发送第四下行RRC传输消息。
具体而言,为了让远端UE#2准确接收来自CU的消息,需要在中继UE#1和远端UE#2之间建立承载,此时,CU需要通过第四消息将远端UE的标识和承载配置中#3发送至远端UE。
需要说明的是,CU向中继UE#1发送第三下行RRC传输消息可以在CU向远端UE#2发送第四下行RRC传输消息之后执行,或者,CU向中继UE#1发送第三下行RRC传输消息可以与CU向远端UE#2发送第四下行RRC传输消息同时执行,在此不做过多的限定。
示例性的,当CU指示DU向远端UE#2传输数据时,DU接收到CU传输的数据、远端UE#2的标识,以及远端的UE#2的承载标识DRB1。CU通过这种形式确定了远端 UE#2的数据需要通过远端UE#2的DRB1承载发送。基于上述步骤,DU能够识别与远端UE的UE#2的承载标识DRB1具有映射关系的中继UE#2的DRB2承载,并通过该DRB2承载对应的RLC承载转发给中继UE#1。基于上述步骤,中继UE#1也已经获知DRB2的RLC承载配置和DRB1的RLC承载配置之间的映射关系,因此,当DU接收到通过DRB2关联的RLC承载发送的数据时,DU能够正确地通过DRB1关联的RLC承载转发给远端UE#2。
示例性的,当远端UE#2向CU发送数据时,基于上述步骤,中继UE#1也已经获知RLC承载配置#4和RLC承载配置#3之间的映射关系,因此能够把远端UE通过RLC承载#3之间的映射关系,因此能够把远端UE#2通过RLC承载配置#3关联的承载发送的数据包正确地通过RLC承载配置#4关联的承载转发给DU。基于上述步骤,CU已经知道与RLC承载配置#4相关联的PDCP实体,因此能够正确地把数据包交给上层。
因此,通过分别维护远端设备和中继设备的上下文,使得CU和DU都能确定第一RLC承载配置和第二RLC承载配置之间的映射关系,因此DU能够正确的将远端设备的消息发送至中继设备。同时,中继设备也知道中继设备和DU之间的RLC承载与中继UE和远端UE之间的RLC承载的映射关系,因此,中继设备也能正确转发远端设备的消息。
需要说明的是,在维护中继UE的上下文和远端UE的上下文过程中,即步骤S709至步骤S718以中继UE#1的DRB标识、远端UE#2的DRB标识以及远端UE#2的DRB标识和中继UE#1的DRB标识具有映射关系为例进行的描述。可选地,S709至S718同样适用于中继UE#1的SRB标识、远端UE#2的SRB标识以及远端UE#2的SRB标识和中继UE#1的DRB标识具有映射关系,在此不做过多限定。
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,而不应对本申请实施例的实施过程构成任何限定。
图8示出了本申请实施例提供的一种通信方法的另一示意图,在图8中,以第一网络设备为DU,第一网络设备为CU,第一终端设备为中继UE#1,第二终端设备为远端UE#2为例进行说明,图8中具体的方法包括:
S801,DU向CU发送上行RRC传输消息。
S802,CU向DU发送第一下行RRC传输消息。
示例性的,当中继UE#1和远端UE#2建立单播通信时,此时,中继UE#1需要为其接入的远端UE#2分配本地标识。当远端UE#2请求建立RRC连接时,该RRC建立请求消息中携带本地标识,所以当DU接收到远端UE#2的RRC建立请求消息时,DU会根据该消息中携带的本地标识知道中继UE#1新接入了一个远端设备,该远端设备为远端UE#2。随后,DU向CU发送上行RRC传输消息,该上行RRC传输消息通过中继UE#1建立在CU和DU之间的第二F1逻辑连接进行远端UE#2消息的传输,即,远端UE#2通过复用中继UE#1在CU和DU之间的F1逻辑连接进行消息的传输。该上行RRC传输消息中携带远端UE#2的标识和与远端UE#1的SRB1具有映射关系的RLC承载配置#1。
也就是说,DU通过向CU发送上行RRC传输消息,在DU和CU之间建立的第二F1逻辑连接专门用于传输中继UE#1的消息,但此时,远端UE#2复用该逻辑连接传输远端UE的消息,因此,为了区分F1逻辑连接中传输的是中继UE#1的消息还是远端的UE#2的消息,需要在每条消息中携带标识,例如,上行RRC传输消息中携带远端UE#2的标 识是为了让CU知道这条消息来自远端UE。
示例性的,CU接收到该上行RRC传输消息,能够确认是远端UE#1复用中继UE#1的在CU和DU之间的F1逻辑连接,根据该上行RRC传输消息中携带的RLC承载配置#1生成完整的无线承载的配置,即将RLC承载配置#1、PDCP配置和SDAP配置组合生成一个完整的无线承载的配置,并将该无线承载的配置发送给DU,即步骤S802中的第一下行RRC传输消息,该第一下行RRC传输消息中携带远端UE#2的标识和无线承载的配置。DU接收到第一下行RRC传输消息后,将无线承载配置通过已经建立的SRB0通道经中继UE#1转发给远端UE#2。
可选地,远端UE#2的标识可以为接口标识或空口标识,例如,C-RNTI、gNB-CU UE F1AP ID、gNB-DU UE F1AP ID。
需要说明的是,在本申请实施中,RLC承载配置#1是用在远端UE#2和中继UE#1之间传输远端UE#2消息的承载配置。
作为示例而非限定,以下将以远端UE#2的SRB1的建立过程为例进行说明。
S803,确定远端UE#2的SRB1和中继UE#1的SRB标识之间的映射关系。
S804,CU向DU发送第一用户上下文修改请求消息。
S805,DU确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
S806,DU向CU发送第一用户上下文修改响应消息。
S807,CU确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
S808,CU向中继UE#1发送第二下行RRC传输消息。
示例性的,步骤S803至S808的具体实现方式可以参见上述步骤S703至S708中,CU和DU针对中继UE#1的上下文修改以及SRB1的建立过程,此处不再赘述。
当上述过程建立完SRB1后需要建立除SRB1以外的其他无线承载,包括DRB或者SRB,作为示例而非限定,以下过程将以建立或更改DRB承载进行说明。
S809,DU确定远端UE#2的DRB标识和中继UE#1的DRB标识之间的映射关系。
示例性的,当上述SRB1建立后,CU知道远端UE#2的上下文发生变化。因为远端UE#2复用中继UE#1的F1逻辑连接,所以CU通过维护中继UE#1的上下文进而维护远端UE#2的上下文。此时,CU为远端UE#2增加中继UE#1的DRB标识,然后确定该新增的DRB标识与远端UE#2的DRB标识之间的映射关系。或者,CU也可以更改中继UE#1目前现有的DRB标识,并确定其与远端UE#2的DRB标识之间的映射关系。
S810,CU向DU发送第二用户上下文修改请求消息。
示例性的,CU需要通过维护中继UE#1的上下文进而维护远端UE#2的上下文,此时,CU向DU发送第二用户上下文修改请求消息,该请求消息中携带远端UE#2的标识、远端UE#2的DRB标识以及中继UE#1的DRB标识,其中该消息中携带的远端UE#2的DRB标识与中继UE#1的DRB标识具有映射关系,该请求消息用于请求DU修改中继UE#1的上下文。其中,远端UE#2的DRB标识与中继UE#1的DRB标识的映射关系是在步骤S809中通过CU来确定的。远端UE#2的DRB标识是远端UE#2和CU之间的承载标识,中继UE#1的DRB标识是中继UE#1和CU之间的承载标识。
S811,DU确定RLC承载配置#4和RLC承载配置#3之间的映射关系。
示例性的,当DU接收到第二用户上下文修改请求消息后,确定需要修改中继UE#2 的上下文,并根据该请求消息中携带的中继UE#1的DRB标识生成相关联的RLC承载配置#4(即第一RLC承载配置),根据该请求消息中携带的远端UE#2的DRB标识生成相关联的RLC承载配置#3(即第二RLC承载配置中的第二配置),因为中继UE#1的DRB标识与远端UE#2的DRB标识具有映射关系,所以,DU需要确定RLC承载配置#4和RLC承载配置#3之间的映射关系。进一步,DU也需要确定RLC承载配置#4、远端UE#2的DRB标识和中继UE#1的DRB标识之间的映射关系。
S812,DU向CU发送第二用户上下文修改响应消息。
示例性的,当DU修改中继UE#1的上下文,且确定了RLC承载配置#4和RLC承载配置#3之间的映射关系后,需要向CU发送第二用户上下文修改响应消息,该响应消息中携带远端UE#2的标识、RLC承载配置#4和RLC承载配置#3。
S813,DU确定RLC承载配置#4和RLC承载配置#3之间的映射关系。
示例性的,CU接收到第二用户上下文修改响应消息后,知道DU已经为中继UE#1修改了上下文,此时CU也需要确定RLC承载配置#4和RLC承载配置#3之间的映射关系。因为,CU已经确定了中继UE#1的DRB标识和远端UE#2的DRB标识之间的映射关系。因此,CU可以进一步确定RLC承载配置#4和RLC承载配置#3之间的映射关系,即DU通过维护中继UE#1的DRB标识和远端UE#2的DRB标识之间的映射关系来维护RLC承载配置#4和RLC承载配置#3之间的映射关系。
S814,CU向中继UE#1发送第三下行RRC传输消息。
S815,CU向远端UE#2发送第四下行RRC传输消息。
示例性的,步骤S814和S815的具体实现方式可以参见上述步骤S717和S718,此处不再赘述。
示例性的,步骤S809至S815是通过更新中继UE#1的上下文进一步更新远端UE#2的上下文,可选地,当中继UE#1的上下文还没建立时,此时,S810可以为DU向CU发送用户上下文建立请求消息,该请求消息用于请求DU建立中继UE#2的上下文,该请求消息中携带远端UE#2的标识、远端UE#2的DRB标识以及中继UE#1的DRB标识;S812可以为DU向CU发送的用户上下文建立响应消息,该响应消息中携带远端UE#2的标识、RLC承载配置#4和RLC承载配置#3。
因此,在本申请实施例中,远端设备通过复用中继设备在CU和DU之间的F1逻辑连接,CU和DU通过维护中继UE的上下文进而维护远端UE的上下文,进一步确定了第一RLC承载配置和第二RLC承载配置之间的映射关系,从而,DU和中继设备能够在CU的指示下正确转发远端设备的消息。
需要说明的是,在维护中继UE的上下文和远端UE的上下文过程中,即步骤S809至步骤S815以中继UE#1的DRB标识、远端UE#1的DRB标识以及远端UE#1的DRB标识和中继UE#2的DRB标识具有映射关系为例进行的描述。可选地,S809至S815同样适用于中继UE#1的SRB标识、远端UE#2的SRB标识以及远端UE#2的SRB标识和中继UE#1的DRB标识具有映射关系,在此不做过多限定。
图9示出了本申请实施例提供的一种通信方法的另一个实施例的示意图,该方法具体包括:
S901,第一网络设备确定第一RLC承载配置和第二RLC承载配置之间的关联关系。
S902,第一网络设备向第二网络设备发送第一请求消息。
S903,第二网络设备向第一网络设备发送第一响应消息。
S904,第二网络设备确定第一RLC承载配置和第二RLC承载配置之间的关联关系。
示例性的,当第二网络设备在接收到第二终端设备的标识后,第二网络设备能够确定该第二终端设备是通过哪一个第一终端设备为该第二终端设备的提供中继服务,此时,第一网络设备知道要为第二终端设备建立承载以便进行第二终端设备消息的传输。第一网络设备根据第二终端设备的承载标识生成相应的RLC承载配置(以下可以称为第二RLC承载配置),根据第一终端设备的承载标识生成与其相关联的RLC承载配置(以下称为第一RLC承载配置)或者更改RLC承载配置,使其与第二RLC承载配置相关联。
当第一网络设备确定第一RLC承载配置和第二RLC承载配置之间的关联关系后,第一网络设备向第二网络设备发送第一请求消息,该第一请求消息用于请求第二网络设备更改第一终端设备的上下文,该消息中携带第一终端设备的承载标识、第二终端设备的承载标识、第二终端设备的标识和第一RLC承载配置。
可选地,第一网络设备向第二网络设备发送第一传输消息,第一传输消息用于为所述第二终端设备建立所述第二网络设备和所述第一网络设备之间的F1逻辑连接,该第一传输消息中携带第一终端设备的标识和第二RLC承载配置中的第一配置。
可选地,第一网络设备向第二网络设备发送第二传输消息,第二传输消息通过第二F1逻辑连接进行传输,该第二F1连接连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,该第二传输消息包括第二终端设备的标识和第二RLC承载配置中的第一配置。
应理解,第一传输消息或第二传输消息可以在S902之前执行,也可一在S902之后执行,对此不做过多的限定。
可选地,在步骤S901之前,第二网络设备向第一网络设备发送第二请求消息,第二请求消息用于请求第一网络设备建立第二终端设备的上下文,该请求消息中携带第二终端设备的承载标识,第一网络设备根据第二终端设备的承载标识生成响应的第二RLC承载配置中的第二配置。之后第一网络设备向第二网络发送第二响应消息,第二响应消息中携带第二RLC承载配置中的第二配置。
可选地,在步骤S901之前,第二网络设备向第一网络设备发送第三请求消息,第三请求消息用于请求第一网络设备修改第二终端设备的上下文,该请求消息中携带第二终端设备的承载标识,第一网络设备根据第二终端设备的承载标识生成响应的第二RLC承载配置中的第二配置。之后第一网络设备向第二网络发送第三响应消息,第三响应消息中携带第二RLC承载配置中的第二配置。
可选地,第二请求消息中还可以携带第一终端设备的承载标识。
可选地,第三请求消息中还可以携带第一终端设备的承载标识。
可选地,第一终端设备的承载标识可以是第一网络设备在其现有的列表中自行确定的。
可选地,本申请实施例中的承载标识可以为DRB标识或者SRB标识。
应理解,第一终端设备的承载标识为第一终端设备和第二网络设备之间的承载标识,第一终端设备的承载标识可以是第一终端设备的SRB标识,也可以是第一终端设备的 DRB标识。
应理解,第二终端设备的承载标识为第二终端设备和第二网络设备之间的承载标识,第二终端设备的承载标识可以是第二终端设备的SRB标识,也可以是第二终端设备的DRB标识。
应理解,第一终端设备承载标识和第二终端设备承载标识之间的关联关系可以为第一终端设备的SRB标识和第二终端设备的SRB的标识之间的关联关系,和/或第一终端设备的DRB标识和第二终端设备的DRB的标识之间的关联关系。
可选地,第一终端设备的标识可以为接口标识或空口标识,例如,该中继UE的标识可以是C-RNTI,也可以是F1接口的用户标识,例如,gNB-CU UE F1AP ID、gNB-DU UE F1AP ID。
可选地,第二终端设备的标识可以为接口标识或空口标识,例如,该远端UE的标识可以是C-RNTI或本地标识,也可以是F1接口的用户标识,例如,gNB-CU UE F1AP ID、gNB-DU UE F1AP ID。
可选地,第一请求消息可以为用户上下文修改请求消息,该第一用户上下文修改请求消息中携带第一终端设备的标识,第一终端设备的SRB标识和第二终端设备的SRB1。
可选地,第一请求消息可以为用户上下文修改请求消息,该第一用户上下文修改请求消息中携带第一终端设备的标识,第一终端设备的承载标识标识和第二终端设备的除SRB1之外的承载标识。
应理解,第二RLC承载配置包括第一配置和第二配置,第一配置与第二终端设备的SRB1相关联,第二配置与第二终端设备的除SRB1之外的承载标识相关联。
第二网络设备接收到来自第一网络设备发送的第一请求消息后,确定是为第一终端设备修改上下文,之后向第一网络设备发送第一响应消息,第一响应消息用于告知第一网络设备已经修改第一终端设备的上下文。
可选地,第一响应消息可以为用户上下文确认消息。
为了第一网络设备和第一终端设备能够准确传输第二终端设备的消息,也需要让第二网络设备知道第一RLC承载配置和第二RLC承载配置之间的关联关系。因此,第二网络设备根据第一请求消息确定确定第一RLC载配置和第二RLC承载配置之间的关联关系。具体来说,第二网络设备接收第一RLC承载配置、第一终端设备的承载标识和第二终端设备的的承载标识,且第一终端设备的承载标识和第二终端设备的的承载标识具有关联关系,第一RLC承载配置、第一终端设备的承载标识和第二终端设备的的承载标识之间也有关联关系,所以,第二网络设备能够进一步确定第一RLC承载配置和第二RLC承载配置之间的关联关系。
应理解,第一RLC承载配置与第一终端设备的承载标识具有关联关系,可选地,第一RLC承载配置与第一终端设备的DRB标识具有关联关系;可选地第一RLC承载配置与第一终端设备的SRB标识具有关联关系。
应理解,第二RLC承载配置与第二终端设备的承载标识具有关联关系,可选地,第二RLC承载配置与第二终端设备的DRB标识具有关联关系;可选地第二RLC承载配置与第二终端设备的SRB标识具有关联关系。
应理解,第一RLC承载配置与第二RLC承载配置的关联关系可以为与第一终端设备 相关联的SRB标识和与第二终端设备相关联的SRB标识之间具有关联关系。或者,第一RLC承载配置与第二RLC承载配置的关联关系可以为与第一终端设备相关联的DRB标识和与第二终端设备相关联的DRB标识之间具有关联关系。
应理解,上述过程中涉及的关联关系可以为映射关系。即第一终端设备的承载标识和第二终端设备的承载标识之间的映射关系,第一RLC承载配置和第二RLC承载配置之间的映射关系,该映射关系可以如表1所示。
在本申请实施例中,通过第二网络设备维护第一终端设备的上下文,第一网络设备和第二网络设备都知道第一RLC承载配置和第二RLC承载配置之间的关联关系。因此,当第二网络设备指示第一网络设备转发第二终端设备的消息时,第一网络设备能根据第一RLC承载配置和第二RLC承载配置之间的关联关系能正确转发第二终端设备的消息。
图10示出了本申请实施例提供的一种通信方法的另一示意图,在图10中,以第一网络设备为DU,第一网络设备为CU,第一终端设备为中继UE#1,第二终端设备为远端UE#2为例进行说明,图10中具体的方法包括:
S1001,DU向CU发送初始上行RRC传输消息。
S1002,CU向DU发送第一下行RRC传输消息。
示例性的,步骤S1001和步骤S1002的具体实现方式可以参见上述步骤S701和步骤S702中,此处不再赘述。
S1003,DU确定RLC承载配置#2和RLC承载配置#1的映射关系。
应理解,S1003只要在RRC建立请求消息之后进行即可,其与步骤S1003和S1004的顺序没有必然的先后顺序,本申请实施例中各步骤的先后顺序仅仅作为示例,本申请对此不作限定。
示例性的,当中继UE#1和远端UE#2建立单播通信时,此时,中继UE#1需要为其接入的远端UE#2分配本地标识。当远端UE#2请求建立RRC连接时,该RRC建立请求消息中携带本地标识,所以当DU接收到远端UE#2的RRC建立请求消息时,DU会根据该消息中携带的本地标识知道中继UE#1新接入了一个远端设备,该远端设备为远端UE#2。DU知道要为与中继UE#1相关联的远端UE#2建立承载以便传输远端UE#2的消息。为此,DU首先确定远端UE#2的SRB1和中继UE的SRB标识之间的映射关系。
作为示例而非限定,DU可以请求中继UE#1增加SRB标识,然后可以确定该新增的SRB标识与远端UE#2的SRB1的映射关系。或者,DU也可以更改中继UE1目前现有的SRB标识,并确定其与远端UE#2的SRB1之间的映射关系。
DU已经根据远端UE#2的SRB1生成了与其相关联的RLC承载配置#1(即第二RLC承载在配置中的第一配置),DU还需要根据中继UE#1的SRB标识生成或者更改与其相关联的RLC承载配置#2(即第一RLC承载配置)。因为,DU知道中继UE#1的SRB标识和远端UE#2的SRB1之间的映射的关系。故而能进一步确定RLC承载配置#2、中继UE#1的SRB标识和远端UE#2的SRB1之间的映射的关系,因此,DU也就能够确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
应理解,RLC承载配置#2是用于在中继UE#1和远端UE#2之间传输远端UE#2消息的承载配置。
应理解,RLC承载配置#1是用于在中继UE#1和远端UE#2之间传输远端UE#2消息 的承载配置。
S1004,DU向CU发送第一用户上下文修改请求消息。
示例性的,当DU确定RLC承载配置#2和RLC承载配置#1之间的映射关系后,DU向CU发送第一用户上下文修改请求消息,该第一用户上下文修改请求消息用于请求CU更改中继UE#1的上下文,该消息中携带中继UE#1的SRB标识、远端UE#2的SRB1、远端UE#2的标识和与中继UE#1的SRB标识相关联的RLC承载配置#2。
S1005,CU向DU发送第一用户上下文修改响应消息,该响应消息用于CU向DU确认已经更改中继UE#1的上下文。
S1006,CU确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
示例性的,为了让CU也需要知道与中继UE#1的SRB标识相关联的RLC承载配置#2和与远端UE#2的SRB1相关联的RLC承载配置#1之间的映射关系。此时,CU根据接收到的第一请求消息中携带的RLC承载配置#2确定其与RLC承载配置#1之间的映射关系。CU中根据接收到的第一用户上下文修改请求消息中携带的远端UE#2的SRB1和中继UE#1的SRB的标识确定二者映射关系,且在上行RRC传输消息中,CU已经接收到了RLC承载配置#1,因此,能够确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
S1007,CU向中继UE#1发送第二下行RRC传输消息。
示例性的,步骤S1007具体实现方式可以参见上述步骤S708,此处不再赘述。
当上述过程建立完SRB1后需要建立除SRB1以外的其他无线承载,包括DRB或者SRB,作为示例而非限定,以下过程将以建立或更改DRB承载进行说明。
S1008,CU向DU发送用户上下文建立请求消息。
具体而言,当核心网、应用层确定该远端UE#2有新的业务需求时,也就是通过QoS映射关系需要建立新的DRB承载,此时,CU向DU发送用户上下文建立请求消息,该用户上下文建立请求消息中携带远端UE#2的DRB的标识,该请求消息用于为远端UE#2建立上下文。
S1009,DU生成RLC承载配置#3(即第二RLC承载配置中的第二配置)。
示例性的,DU接收到用户上下文建立请求消息后,确定是为远端UE#2建立上下文,并根据用户上下文修改请求消息中携带的远端UE#2的DRB标识生成与其相关联的RLC承载配置#3,该RLC承载配置#3用于在中继UE#1和远端UE#2之间建立RLC承载传输远端UE#2的消息。
可选地,如果步骤1008中携带的是远端UE#2的SRB标识,则DU根据远端UE#2的SRB标识生成与其相关联的RLC承载配置#3。
S1010,DU向CU发送用户上下文建立响应消息。
DU为远端UE#2建立上下文后,需要向CU发送用户上下文建立响应消息,该响应消息中携带RLC承载配置#3。
应理解,步骤S1008至步骤S1010是建立远端UE#2的上下文,可选地,当远端UE#2的上下文已经建立时,远端UE的DRB标识发生变化时,需要更改远端UE#2的上下文。此时,S1008可以为DU向CU发送第三用户上下文修改请求消息,该请求消息中携带远端UE#2的DRB的标识,该请求消息用于为远端UE#2修改上下文;S1009根据远端UE#2 的DRB标识生成的第RLC承载配置#3,此时S1010可以为DU向CU发送的第三用户上下文修改响应消息,该响应消息可以为远端UE#2的上下文修改响应消息,同样的,该上下文修改响应消息中携带RLC承载配置#3。
S1011,DU确定RLC承载配置#4和RLC承载配置#3之间的映射关系。
应理解,上述步骤S1008至S1011过程中,用户上下文建立请求消息或第三用户上下文修改请求消息中携带远端UE#2的DRB的标识,此时是DU确定远端UE#2的DRB标识和中继UE#1的DRB标识之间的映射关系,即,当DU接收到用户上下文建立请求消息后,一方面,根据远端UE#2的DRB标识生成相关联的RLC承载配置#3(第二RLC承载配置中的第二配置),另一方面,DU可以请求中继UE#1增加DRB标识,然后可以确定该新增的DRB标识与远端UE#2的DRB的映射关系。或者,DU也可以更改中继UE1目前现有的DRB标识,并确定其与远端UE#2的DRB之间的映射关系。同时,DU根据中继UE#1的DRB标识生成与其相关联的RLC承载配置#4,进一步根据远端UE#2的DRB标识和中继UE#1的DRB标识之间的映射关系确定RLC承载配置#4和RLC承载配置#3之间的映射关系。
可选地,上述步骤S1008至S1011过程中,用户上下文建立请求消息或第三用户上下文修改请求消息中携带远端UE#2的DRB标识和中继UE#1的DRB标识,此时是CU确定远端UE#2的DRB标识和中继UE#1的DRB标识之间的映射关系,即,当CU可以请求中继UE#1增加DRB标识,然后可以确定该新增的DRB标识与远端UE#2的DRB的映射关系。或者,DU也可以更改中继UE1目前现有的DRB标识,并确定其与远端UE#2的SRB1之间的映射关系。应理解,当CU确定远端UE#2的DRB标识和中继UE#1的DRB标识之间的映射关系时,DU接收到用户上下文建立请求消息后,一方面,DU根据远端UE#2的DRB标识生成相关联的RLC承载配置#1(第二RLC承载配置中的第二配置),一方面,DU根据中继UE#1的DRB标识生成与其相关联的RLC承载配置#1,另一方面,根据远端UE#2的DRB标识和中继UE#1的DRB标识之间的映射关系进一步确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
S1012,DU向CU发送第二用户上下文修改请求消息。
示例性的,当DU知道上述过程是为了更改远端UE#2的承载时。DU会向CU发送第二用户上下文修改请求消息,该请求消息用于请求中继UE#1的上下文的修改。该请求消息中携带远端UE#2的标识、远端UE#2的DRB标识、中继UE#1的DRB标识以及RLC承载配置#4,其中,中继UE#1的DRB标识和远端UE#2的DRB标识具有映射关系。
S1013,CU向DU发送第二用户上下文修改响应消息,该响应消息用于CU向DU告知已经修改了中继UE#1的上下文。
S1014,CU确定RLC承载配置#4和RLC承载配置#3之间的映射关系。
为了远端UE#2消息的正确转发,也需要让CU知道RLC承载配置#4和RLC承载配置#3之间的映射关系。因此,CU在接收到RLC承载配置#4、远端UE#2的DRB标识和中继UE#1的DRB标识后,首先能够确定中继UE#1的DRB标识和远端UE#2的DRB标识具有映射关系,根据RLC承载配置#4和中继UE#1的映射关系、RLC承载配置#3和远端UE#2的映射关系进一步能够确定RLC承载配置#4和RLC承载配置#3之间的映射关系。
S1015,CU向中继UE#1发送第三下行RRC传输消息。
S1016,CU向远端UE#2发送第四下行RRC传输消息。
示例性的,步骤S1015和步骤S1016的具体实现方式可以参见上述步骤S717和步骤S718,此处不再赘述。
要说明的是,在维护中继UE的上下文和远端UE的上下文过程中,即步骤S1008至步骤S1016以中继UE#1的DRB标识、远端UE#2的DRB标识以及远端UE#2的DRB标识和中继UE#1的DRB标识具有映射关系为例进行的描述。可选地,S1008至S1016同样适用于中继UE#1的SRB标识、远端UE#2的SRB标识以及远端UE#2的SRB标识和中继UE#1的DRB标识具有映射关系,在此不做过多限定。
应理解,在本申请的各种实施例中,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,而不应对本申请实施例的实施过程构成任何限定。
图11示出了本申请实施例提供的一种通信方法的另一示意图,在图11中,以以第一网络设备为DU,第一网络设备为CU,第一终端设备为中继UE#1,第二终端设备为远端UE#2为例进行说明,图11中具体的方法包括:
S1101,DU向CU发送上行RRC传输消息。
S1102,CU向DU发送第一下行RRC传输消息。
示例性的,步骤S1101和步骤S1102的具体实现方式可以参见上述步骤S801和步骤S802中,此处不再赘述。
S1103,DU确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
S1104,DU向CU发送第一用户上下文修改请求消息。
S1105,CU向DU发送第一用户上下文修改响应消息。
S1106,CU确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
S1107,CU向中继UE#1发送第二下行RRC传输消息。
示例性的,步骤S1103和步骤S1107的具体实现方式可以参见上述步骤S1003和步骤S1007,此处不再赘述。
当上述过程建立完SRB1后需要建立除SRB1以外的其他无线承载,包括DRB或者SRB,作为示例而非限定,以下过程将以建立或更改DRB承载进行说明。
S1108,DU确定远端UE#2的DRB标识和中继UE#1的DRB标识之间的映射关系。
S1109,CU向DU发送第二用户上下文修改请求消息。
S1110,DU确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
S1111,DU向CU发送第二用户上下文修改响应消息。
S1112,DU确定RLC承载配置#2和RLC承载配置#1之间的映射关系。
S1113,CU向中继UE#1发送第三下行RRC传输消息。
S1114,CU向远端UE#2发送第四下行RRC传输消息。
示例性的,步骤S1108和步骤S1114的具体实现方式可以参见上述步骤S809和步骤S815,此处不再赘述。
本领域普通技术人员可以意识到,本申请中所公开的实施例仅仅是示意性的,可以通过其他组合方式实现。例如,步骤S703至S708可以与步骤S1008至步骤S1016结合。再例如,步骤S1001至S1007可以与步骤S709至S718结合。也就是说,任何熟悉本技术领 域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。
图12为本申请实施例提供的另一种通信方法的示意图,在图12中,以第一网络设备为DU,第二网络设备为CU为例进行说明。
S1201,DU向CU发送F1连接建立请求消息。
S1202,CU向DU发送F1连接建立响应消息。
具体而言,DU作为一个分布式单元,其管理的小区单元要想通过CU接入无线通信网络之前,DU要与CU建立F1连接并交互小区级别的信息。为此,DU向CU发送F1连接建立请求消息,所述F1连接建立请求消息用于请求CU建立CU和DU之间的F1连接,该请求消息中携带DU的系统消息。当CU建立F1连接后,会向DU发送F1连接建立响应消息,该响应消息携带CU的系统消息和侧行链路无线承载配置。当DU接收到响应消息后,DU会在广播系统消息中发送侧行链路无线承载配置。
应理解,DU接收到响应消息后,DU广播系统消息会有两种触发方式。
可选地,DU广播系统消息基于UE发送的Preamble消息(Msg1)触发。当确定资源上的Preamble关联了相应的UE对小区系统消息的广播需求后,DU能够通过识别Preamble消息确定广播哪些系统消息。
可选地,DU广播系统消息基于UE发送的连接建立请求消息(Msg3)或者上行RRC消息请求触发。UE可以在这两条消息中明确指示对小区广播消息的需求,CU识别Msg3消息或者上行RRC消息后指示DU广播相应的系统消息。
应理解,S1201和S1202应在S701、S801、S1001和S1101之前执行,也就是说,DU和CU之间的F1连接需要在未接入任何终端设备之前执行。
通过第二网络设备向第一网络设备发送侧行链路无线承载配置,能够解决第一网络设备不能自行生成侧行无线承载配置的技术问题。
图13为本申请一个实施例提供的通信装置的示意性结构图,该通信装置1300可以包括:
收发单元1310、存储单元1320和处理单元1330。
该收发单元1310用于接收第二网络设备发送的第一请求消息,第一请求消息用于请求第一网络设备修改第一终端设备的上下文,第一请求消息包括第一终端设备的承载标识、所述第二终端设备的承载标识以及所述第二终端设备的标识,第一终端设备的承载标识为第一终端设备和第二网络设备之间的承载标识,第二终端设备的承载标识为第二终端设备和第二网络设备之间的承载标识。
收发单元1310还用于向第二网络设备发送第一响应消息,第一响应消息包括第一无线链路控制RLC承载配置,第一RLC承载配置用于在第一终端设备和第一网络设备之间传输第二终端设备的消息,第一RLC承载配置与第一终端设备的承载标识具有关联关系。
可选地,收发单元1310用于根据处理单元1330确定的第二终端设备的承载标识和第一RLC承载配置之间的关联关系传输第二终端设备的消息。
可选地,装置1300还可以包括处理单元1330,该处理单元1330用于确定第一RLC承载配置和第二RLC承载配置的关联关系,第二RLC承载配置为用于在第二终端设备和第一终端设备之间传输第二终端设备消息的承载配置,第二RLC承载配置与第二终端设 备的承载标识具有关联关系。
可选地,第一终端设备的承载标识包括第一终端设备的信令无线承载SRB标识和/或第一终端设备数据无线承载DRB标识。
可选地,第二终端设备的承载标识包括第二终端设备的SRB标识和/或第二终端设备的DRB标识。
可选地,第一终端设备的SRB标识和第二终端设备的SRB标识具有关联关系。
可选地,第一终端设备的DRB标识和第二终端设备的DRB标识具有关联关系。
可选地,收发单元1310还用于向第二网络设备发送第一传输消息,该第一传输消息用于为第二终端设备建立第二网络设备和第一网络设备之间的第一F1逻辑连接,第一传输消息包括第一终端设备的标识和第二RLC承载配置中的第一配置。
可选地,收发单元1310还用于接收第二网络设备发送的第二请求消息,第二请求消息用于请求第一网络设备建立第二终端设备的上下文,第二请求消息包括第二终端设备的承载标识;收发单元还用于第一网络设备向第二网络设备发送第二响应消息,第二响应消息包括第二RLC承载配置中的第二配置。
可选地,收发单元1310还用于接收第二网络设备发送的第三请求消息,第三请求消息用于请求第一网络设备修改第二终端设备的上下文,第三请求消息包括第二终端设备的承载标识;收发单元还用于第一网络设备向第二网络设备发送第三响应消息,第三响应消息包括第二RLC承载配置中的第二配置。
可选地,收发单元1310还用于通过第二F1逻辑连接向第二网络设备发送第二传输消息,第二F1逻辑连接为第一终端设备在第一网络设备和第二网络设备之间的连接通道,第二传输消息包括第二终端设备的标识和第二RLC承载配置中的第一配置。
可选地,第一响应消息还包括所述第二RLC承载配置中的第二配置。
可选地,第二RLC承载配置中的第一配置为与第二终端设备的SRB1标识具有关联关系的RLC承载配置。
可选地,第二RLC承载配置中的第二配置为与第二终端设备的SRB标识具有关联关系的RLC承载配置。
可选地,第二RLC承载配置中的第二配置为与第二终端设备的DRB标识具有关联关系的RLC承载配置。
可选地,第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
可选地,收发单元1310还用于向第二网络设备发送F1连接建立请求消息。该收发单元1310还用于第一网络设备接收第二网络设备发送的F1连接建立响应消息,F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,侧行链路无线承载配置用于第一网络设备在系统广播消息中发送。
可选地,装置1300还包括存储单元1320。该存储单元1320可以用来存储的程序代码和数据,以便处理单元1330根据存储单元1320中存储的指令执行上述实施例中对应的各个步骤和/或流程。
图14为本申请一个实施例提供的通信装置的示意性结构图,该通信装置1400可以包括:
收发单元1410处理单元1420。
收发单元1410用于向第一网络设备发送第一请求消息,该第一请求消息用于请求第一网络设备修改第一终端设备的上下文,第一请求消息包括第一终端设备的承载标识、第二终端设备的承载标识以及第二终端设备的标识,第一终端设备的承载标识为第一终端设备和第二网络设备之间的承载标识,第二终端设备的承载标识为第二终端设备和第二网络设备之间的承载标识。
收发单元1410还用于接收第一网络设备发送的第一响应消息,该第一响应消息包括第一无线链路控制RLC承载配置,第一RLC承载配置用于在第一终端设备和第一网络设备之间传输第二终端设备的消息,第一RLC承载配置与第一终端设备的承载标识具有关联关系。
可选地,第一RLC承载配置、第一终端设备的承载标识和第二终端设备的承载标识具有关联关系。
可选地,装置1400还可以包括处理单元1420,该处理单元1420用于确定第一RLC承载配置和第二RLC承载配置的关联关系,第二RLC承载配置为用于在第二终端设备和第一终端设备之间传输第二终端设备消息的承载配置,第二RLC承载配置与第二终端设备的承载标识具有关联关系。
可选地,第一终端设备的承载标识包括第一终端设备的信令无线承载SRB标识和/或第一终端设备数据无线承载DRB标识。
可选地,第二终端设备的承载标识包括第二终端设备的SRB标识和/或第二终端设备的DRB标识。
可选地,第一终端设备的SRB标识和第二终端设备的SRB标识具有映射关系。
可选地,第一终端设备的DRB标识和第二终端设备的DRB标识具有映射关系。
可选地,收发单元1410还用于接收第一网络设备发送的第一传输消息,该第一传输消息用于为第二终端设备建立第二网络设备和第一网络设备之间的第一F1逻辑连接,第一传输消息包括第一终端设备的标识和第二RLC承载配置中的第一配置。
可选地,收发单元1410还用于向第一网络设备发送第二请求消息,该第二请求消息用于请求第一网络设备建立第二终端设备的上下文,第二请求消息包括第二终端设备的承载标识。
收发单元1410还用于接收第一网络设备发送的第二响应消息,该第二响应消息包括与第二RLC承载配置中的第二配置。
可选地,收发单元1410还用于向第一网络设备发送第三请求消息,第三请求消息用于请求第一网络设备修改第二终端设备的上下文,第三请求消息包括第二终端设备的承载标识。
收发单元1410还用于接收第一网络设备发送的第三响应消息,第三响应消息包括第二RLC承载配置中的第二配置。
可选地,收发单元1410还用于通过第二F1逻辑连接接收第一网络设备发送的第二传输消息,该第二F1逻辑连接为第一终端设备在第一网络设备和第二网络设备之间的连接通道,该第二传输消息包括第二终端设备的标识和第二RLC承载配置中的第一配置。
可选地,第一响应消息还包括第二RLC承载配置中的第二配置。
可选地,第二RLC承载配置中的第一配置为与第二终端设备的SRB1标识具有关联关系的RLC承载配置。
可选地,第二RLC承载配置中的第二配置为与第二终端设备的SRB标识具有关联关系的RLC承载配置。
可选地,第二RLC承载配置中的第二配置为与第二终端设备的DRB标识具有关联关系的RLC承载配置。
可选地,收发单元1410还用于向第一终端设备发送第一消息,第一消息包括第一终端设备的承载标识,第一RLC承载配置以及所述第二RLC承载配置。
可选地,收发单元1410还用于向第二终端设备发送第二消息,该第二消息包括第二终端设备的承载标识和第二RLC承载配置。
可选地,述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
可选地,收发单元1410还用于接收第一网络设备发送的F1连接建立请求消息。
收发单元1410还用于向第一网络设备发送F1连接建立响应消息,F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,该侧行链路无线承载配置用于第一网络设备在系统广播消息中发送。
可选地,装置1400还包括存储单元。该存储单元可以用来存储的程序代码和数据,以便处理单元1420根据存储单元中存储的指令执行上述实施例中对应的各个步骤和/或流程。
本申请实施例还提供另外一种通信装置,该通信装置的示意性结构图可参考图13,该通信装置1300可以包括:
收发单元1310,存储单元1320和处理单元1330。
收发单元1310用于向第二网络设备发送第一请求消息,该第一请求消息用于请求第二网络设备修改第一终端设备的上下文,第一请求消息包括第一终端设备的承载标识、第二终端设备的标识、第二终端设备的承载标识以及第一无线链路控制RLC承载配置,第一RLC承载配置用于在第一终端设备和第一网络设备之间传输第二终端设备的消息,第一RLC承载配置与第一终端设备的承载标识具有关联关系,第一终端设备的承载标识为第一终端设备和第二网络设备之间的承载标识,第二终端设备的承载标识为第二终端设备和第二网络设备之间的承载标识。
收发单元1310还用于第一网络设备接收第二网络设备发送的第一响应消息。
可选地,收发单元1310还用于根据处理单元1330确定的第二终端设备的承载标识和第一RLC承载配置之间的关联关系传输第二终端设备的消息。
可选地,收发单元1310还用于接收第二网络设备发送的第一远端设备的承载标识。
可选地,第一RLC承载配置、第一终端设备的承载标识和第二终端的承载标识具有关联关系。
可选地,装置1300还可以包括处理单元1330,该处理单元1330用于确定第一RLC承载配置和第二RLC承载配置的关联关系,第二RLC承载配置为用于在第二终端设备和第一终端设备之间传输第二终端设备消息的承载配置,第二RLC承载配置与第二终端设备的承载标识具有关联关系。
可选地,第一终端设备的承载标识包括第一终端设备的信令无线承载SRB标识和/或第一终端设备数据无线承载DRB标识。
可选地,第二终端设备的承载标识包括第二终端设备的SRB标识和/或第二终端设备的DRB标识。
可选地,第一终端设备的SRB标识和第二终端设备的SRB标识具有关联关系。
可选地,第一终端设备的DRB标识和第二终端设备的DRB标识具有关联关系。
可选地,收发单元1310还用于向第二网络设备发送第一传输消息,第一传输消息用于为第二终端设备建立在第二网络设备和第一网络设备之间的第一F1逻辑连接,第一传输消息包括第一终端设备的标识和第二RLC承载配置中的第一配置。
可选地,收发单元1310还用于接收第二网络设备发送的第二请求消息,该第二请求消息用于请求第一网络设备建立第二终端设备的上下文,第二请求消息包括第二终端设备的承载标识。
收发单元1310还用于向第二网络设备发送第二响应消息,第二响应消息包括第二RLC承载配置中的第二配置。
可选地,收发单元1310还用于接收第二网络设备发送的第三请求消息,第三请求消息用于请求第一网络设备修改第二终端设备的上下文,第三请求消息包括第二终端设备的承载标识。
收发单元1310还用于向第二网络设备发送第三响应消息,该第三响应消息包括第二RLC承载配置中的第二配置。
可选地,收发单元1310还用于通过第二F1逻辑连接向第二网络设备发送第二传输消息,该第二F1逻辑连接为第一终端设备在第一网络设备和第二网络设备之间的连接通道,第二传输消息包括第二终端设备的标识和第二RLC承载配置中的第一配置。
可选地,第二RLC承载配置中的第一配置为与第二终端设备的SRB1标识具有关联关系的RLC承载配置。
可选地,第二RLC承载配置中的第二配置为与第二终端设备的SRB标识具有关联关系的RLC承载配置。
可选地,第二RLC承载配置中的第二配置为与第二终端设备的DRB标识具有关联关系的RLC承载配置。
可选地,第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
可选地,收发单元1310还用于向第二网络设备发送F1连接建立请求消息。
收发单元1310还用于接收第二网络设备发送的F1连接建立响应消息,该F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,该侧行链路无线承载配置用于第一网络设备在系统广播消息中发送。
可选地,装置1300还包括存储单元1320。该存储单元1320可以用来存储的程序代码和数据,以便处理单元1330根据存储单元1320中存储的指令执行上述实施例中对应的各个步骤和/或流程。
本申请实施例还提供另外一种通信装置,该通信装置的示意性结构图可参考图14,该通信装置1400可以包括:
收发单元1410和处理单元1420。
收发单元1410用于接收第一网络设备发送的第一请求消息,第一请求消息用于请求第二网络设备修改第一终端设备的上下文,该第一请求消息包括第一终端设备的承载标识、第二终端设备的标识、第二终端设备的承载标识以及第一无线链路控制RLC承载配置,第一RLC承载配置用于在第一终端设备和第一网络设备之间传输所述第二终端设备的消息,第一RLC承载配置与第一终端设备的承载标识具有关联关系,第一终端设备的承载标识为第一终端设备和第二网络设备之间的承载标识,第二终端设备的承载标识为第二终端设备和第二网络设备之间的承载标识;收发单元1410还用于向第一终端设备发送第一响应消息。
收发单元1410还用于向第一网络设备发送第一终端设备的承载标识。
可选地,第一RLC承载配置、第一终端设备的承载标识和第二终端设备的承载标识之间具有关联关系。
可选地,处理单元1420用于确定第一RLC承载配置和第二RLC承载配置的关联关系,第二RLC承载配置为用于在第二终端设备和第一终端设备之间传输第二终端设备消息的承载配置,第二RLC承载配置与第二终端设备的承载标识具有关联关系。
可选地,第一终端设备的承载标识包括第一终端设备的信令无线承载SRB标识和/或第一终端设备数据无线承载DRB标识。
可选地,第二终端设备的承载标识包括第二终端设备的SRB标识和/或第二终端设备的DRB标识。
可选地,第一终端设备的SRB标识和第二终端设备的SRB标识具有关联关系。
可选地,第一终端设备的DRB标识和第二终端设备的DRB标识具有关联关系。
可选地,收发单元1410还用于接收第一网络设备发送的第一传输消息,第一传输消息用于为第二终端设备建立第一网络设备和第二网络设备之间的第一F1逻辑连接,第一传输消息包括第一终端设备的标识和第二RLC承载配置中的第一配置。
可选地,收发单元1410还用于向第一网络设备发送第二请求消息,该第二请求消息用于请求第一网络设备建立第二终端设备的上下文,第二请求消息包括第二终端设备的承载标识。
收发单元1410还用于接收第一网络设备发送的第二响应消息,第二响应消息包括第二RLC承载配置中的第二配置。
可选地,收发单元1410还用于向第一网络设备发送第三请求消息,第三请求消息用于请求第一网络设备建立第二终端设备的上下文,第三请求消息包括第二终端设备的承载标识。
收发单元1410还用于接收第一网络设备发送的第三响应消息,该第三响应消息包括第二RLC承载配置中的第二配置。
可选地,收发单元1410还用于通过第二F1逻辑连接接收第一网络设备发送的第二传输消息,第二F1逻辑连接为第一终端设备在第一网络设备和第二网络设备之间的连接通道,第二传输消息包括第二终端设备的标识和第二RLC承载配置中的第一配置。
可选地,第二RLC承载配置中的第一配置为与第二终端设备的SRB1标识具有关联关系的RLC承载配置。
可选地,第二RLC承载配置中的第二配置为与第二终端设备的SRB标识具有关联关系的RLC承载配置。
可选地,第二RLC承载配置中的第二配置为与第二终端设备的DRB标识具有关联关系的RLC承载配置。
可选地,收发单元1410还用于向第一终端设备发送第一消息,该第一消息包括第一终端设备的承载标识,第一RLC承载配置以及第二RLC承载配置。
可选地,收发单元1410还用于向第二终端设备发送第二消息,第二消息包括第二终端设备的承载标识和第二RLC承载配置。
可选地,第二终端设备的标识包括空口标识或接口标识,空口标识包括所述第一网络设备分配的小区无线网络临时标识,接口标识包括F1接口用户标识。
可选地,收发单元1410还用于接收第一网络设备发送的F1连接建立请求消息。
收发单元1410还用于向第一网络设备发送F1连接建立响应消息,F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
可选地,装置1400还包括存储单元。该存储单元可以用来存储的程序代码和数据,以便处理单元1420根据存储单元中存储的指令执行上述实施例中对应的各个步骤和/或流程。
在一种可能的设计中,如图13或图14中的一个或者多个单元可能由一个或者多个处理器来实现,或者由一个或者多个处理器和存储器来实现;或者由一个或多个处理器和收发器实现;或者由一个或者多个处理器、存储器和收发器实现,本申请实施例对此不作限定。所述处理器、存储器、收发器可以单独设置,也可以集成。
本申请还提供了一种计算机可读介质,其上存储有计算机程序,该计算机程序被计算机执行时实现上述任一方法实施例的功能。
本申请还提供了一种计算机程序产品,该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的 部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。

Claims (96)

  1. 一种通信方法,其特征在于,包括:
    第一网络设备接收第二网络设备发送的第一请求消息,所述第一请求消息用于请求所述第一网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的承载标识以及所述第二终端设备的标识,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;
    所述第一网络设备向所述第二网络设备发送第一响应消息,所述第一响应消息包括第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系。
  2. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备根据所述第二终端设备的承载标识和所述第一RLC承载配置之间的关联关系传输所述第二终端设备的消息。
  3. 根据权利要求1所述的方法,其特征在于,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端的承载标识具有关联关系。
  4. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
  5. 根据权利要求1至4中任一项所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备向所述第二网络设备发送第一传输消息,所述第一传输消息用于为所述第二终端设备建立所述第二网络设备和所述第一网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
  6. 根据权利要求1至5中任一项所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备接收所述第二网络设备发送的第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;
    所述第一网络设备向所述第二网络设备发送第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
  7. 根据权利要求1至6中任一项所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备接收所述第二网络设备发送的第三请求消息,所述第三请求消息用于请求所述第一网络设备修改所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;
    所述第一网络设备向所述第二网络设备发送第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
  8. 根据权利要求1至4中任一项所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备通过第二F1逻辑连接向所述第二网络设备发送第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
  9. 根据权利要求8所述的方法,其特征在于,所述第一响应消息还包括所述第二RLC承载配置中的第二配置。
  10. 根据权利要求1至9中任一项所述的方法,其特征在于,所述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识和本地标识,所述接口标识包括F1接口用户标识。
  11. 根据权利要求1至10中任一项所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备向所述第二网络设备发送F1连接建立请求消息;
    所述第一网络设备接收所述第二网络设备发送的F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
  12. 一种通信方法,其特征在于,包括:
    第二网络设备向第一网络设备发送第一请求消息,所述第一请求消息用于请求所述第一网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的承载标识以及所述第二终端设备的标识,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;
    所述第二网络设备接收所述第一网络设备发送的第一响应消息,所述第一响应消息包括第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系。
  13. 根据权利要求12所述的方法,其特征在于,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端设备的承载标识具有关联关系。
  14. 根据权利要求12所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
  15. 根据权利要求12至14中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备接收所述第一网络设备发送的第一传输消息,所述第一传输消息用于为所述第二终端设备建立所述第二网络设备和所述第一网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
  16. 根据权利要求12至15中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备向所述第一网络设备发送第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;
    所述第二网络设备接收所述第一网络设备发送的第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
  17. 根据权利要求12至16中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备向所述第一网络设备发送第三请求消息,所述第三请求消息用于请求所述第一网络设备修改所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;
    所述第二网络设备接收所述第一网络设备发送的第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
  18. 根据权利要求12至14中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备通过第二F1逻辑连接接收所述第一网络设备发送的第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
  19. 根据权利要求18所述的方法,其特征在于,所述第一响应消息还包括所述第二RLC承载配置中的第二配置。
  20. 根据权利要求12至19中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备向所述第一终端设备发送第一消息,所述第一消息包括所述第一终端设备的承载标识,所述第一RLC承载配置以及第二RLC承载配置。
  21. 根据权利要求12至20中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备向所述第二终端设备发送第二消息,所述第二消息包括所述第二终端设备的承载标识和第二RLC承载配置。
  22. 根据权利要求12至21中任一项所述的方法,其特征在于,所述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识和本地标识,所述接口标识包括F1接口用户标识。
  23. 根据权利要求12至22中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备接收所述第一网络设备发送的F1连接建立请求消息;
    所述第二网络设备向所述第一网络设备发送F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
  24. 一种通信方法,其特征在于,包括:
    第一网络设备向第二网络设备发送第一请求消息,所述第一请求消息用于请求所述第二网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的标识、所述第二终端设备的承载标识以及第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;
    所述第一网络设备接收所述第二网络设备发送的第一响应消息。
  25. 根据权利要求24所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备根据所述第二终端设备的承载标识和所述第一RLC承载配置之间的关联关系传输所述第二终端设备的消息。
  26. 根据权利要求24所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备接收所述第二网络设备发送的所述第一终端设备的承载标识。
  27. 根据权利要求24所述的方法,其特征在于,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端的承载标识具有关联关系。
  28. 根据权利要求24所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
  29. 根据权利要求24至28中任一项所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备向所述第二网络设备发送第一传输消息,所述第一传输消息用于为所述第二终端设备建立在所述第二网络设备和所述第一网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
  30. 根据权利要求24至29中任一项所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备接收所述第二网络设备发送的第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;
    所述第一网络设备向所述第二网络设备发送第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
  31. 根据权利要求24至30中任一项所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备接收所述第二网络设备发送的第三请求消息,所述第三请求消息用于请求所述第一网络设备修改所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;
    所述第一网络设备向所述第二网络设备发送第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
  32. 根据权利要求24至28中任一项所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备通过第二F1逻辑连接向所述第二网络设备发送第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
  33. 根据权利要求24至32中任一项所述的方法,其特征在于,所述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
  34. 根据权利要求24至33中任一项所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备向所述第二网络设备发送F1连接建立请求消息;
    所述第一网络设备接收所述第二网络设备发送的F1连接建立响应消息,所述F1连接 建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
  35. 一种通信方法,其特征在于,包括:
    第二网络设备接收第一网络设备发送的第一请求消息,所述第一请求消息用于请求所述第二网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的标识、所述第二终端设备的承载标识以及第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;
    所述第二终端设备向所述第一终端设备发送第一响应消息。
  36. 根据权利要求35所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备向所述第一网络设备发送所述第一终端设备的承载标识。
  37. 根据权利要求35所述的方法,其特征在于,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端设备的承载标识之间具有关联关系。
  38. 根据权利要求35所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
  39. 根据权利要求35至38中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备接收所述第一网络设备发送的第一传输消息,所述第一传输消息用于为所述第二终端设备建立所述第一网络设备和所述第二网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
  40. 根据权利要求35至39中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备向所述第一网络设备发送第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;
    所述第二网络设备接收所述第一网络设备发送的第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
  41. 根据权利要求35至40中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备向所述第一网络设备发送第三请求消息,所述第三请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;
    所述第二网络设备接收所述第一网络设备发送的第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
  42. 根据权利要求35至38中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备通过第二F1逻辑连接接收所述第一网络设备发送的第二传输消 息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
  43. 根据权利要求35至42中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备向所述第一终端设备发送第一消息,所述第一消息包括所述第一终端设备的承载标识,所述第一RLC承载配置以及第二RLC承载配置。
  44. 根据权利要求35至43中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备向所述第二终端设备发送第二消息,所述第二消息包括所述第二终端设备的承载标识和第二RLC承载配置。
  45. 根据权利要求35至44中任一项所述的方法,其特征在于,所述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
  46. 根据权利要求35至45中任一项所述的方法,其特征在于,所述方法还包括:
    所述第二网络设备接收所述第一网络设备发送的F1连接建立请求消息;
    所述第二网络设备向所述第一网络设备发送F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
  47. 一种通信装置,其特征在于,包括:
    收发单元,用于接收第二网络设备发送的第一请求消息,所述第一请求消息用于请求第一网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的承载标识以及所述第二终端设备的标识,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;
    所述收发单元还用于向所述第二网络设备发送第一响应消息,所述第一响应消息包括第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系。
  48. 根据权利要求47所述的装置,其特征在于,所述收发单元用于根据所述处理单元确定的所述第二终端设备的承载标识和所述第一RLC承载配置之间的关联关系传输所述第二终端设备的消息。
  49. 根据权利要求47所述的装置,其特征在于,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端的承载标识具有关联关系。
  50. 根据权利要求47所述的装置,其特征在于,所述装置还包括:
    处理单元,用于确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
  51. 根据权利要求47至50中任一项所述的装置,其特征在于,所述收发单元还用于向所述第二网络设备发送第一传输消息,所述第一传输消息用于为所述第二终端设备建立 所述第二网络设备和所述第一网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
  52. 根据权利要求47至51中任一项所述的装置,其特征在于,所述收发单元还用于接收所述第二网络设备发送的第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;
    所述收发单元还用于向所述第二网络设备发送第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
  53. 根据权利要求47至52中任一项所述的装置,其特征在于,所述收发单元还用于接收所述第二网络设备发送的第三请求消息,所述第三请求消息用于请求所述第一网络设备修改所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;
    所述收发单元还用于向所述第二网络设备发送第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
  54. 根据权利要求47至50中任一项所述的装置,其特征在于,所述收发单元还用于通过第二F1逻辑连接向所述第二网络设备发送第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
  55. 根据权利要求54所述的装置,其特征在于,所述第一响应消息还包括所述第二RLC承载配置中的第二配置。
  56. 根据权利要求47至55所述的装置,其特征在于,所述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
  57. 根据权利要求47至55所述的装置,其特征在于,所述收发单元还用于向所述第二网络设备发送F1连接建立请求消息;
    所述收发单元还用于接收所述第二网络设备发送的F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
  58. 一种通信装置,其特征在于,包括:
    收发单元,用于向第一网络设备发送第一请求消息,所述第一请求消息用于请求所述第一网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的承载标识以及所述第二终端设备的标识,所述第一终端设备的承载标识为所述第一终端设备和第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;
    所述收发单元还用于接收所述第一网络设备发送的第一响应消息,所述第一响应消息包括第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系。
  59. 根据权利要求58所述的装置,其特征在于,所述第一RLC承载配置、所述第一 终端设备的承载标识和所述第二终端设备的承载标识具有关联关系。
  60. 根据权利要求58所述的装置,其特征在于,所述装置包括:
    处理单元,用于确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
  61. 根据权利要求58至60中任一项所述的装置,其特征在于,所述收发单元还用于接收所述第一网络设备发送的第一传输消息,所述第一传输消息用于为所述第二终端设备建立所述第二网络设备和所述第一网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
  62. 根据权利要求58至61中任一项所述的装置,其特征在于,所述收发单元还用于向所述第一网络设备发送第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括第二终端设备的承载标识;
    所述收发单元还用于接收所述第一网络设备发送的第二响应消息,所述第二响应消息包括所述第二RLC承载配置中的第二配置。
  63. 根据权利要求58至61中任一项所述的装置,其特征在于,所述收发单元还用于向所述第一网络设备发送第三请求消息,所述第三请求消息用于请求所述第一网络设备修改所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;
    所述收发单元还用于接收所述第一网络设备发送的第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
  64. 根据权利要求58至60中任一项所述的装置,其特征在于,所述收发单元还用于通过第二F1逻辑连接接收所述第一网络设备发送的第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
  65. 根据权利要求64所述的装置,其特征在于,所述第一响应消息还包括所述第二RLC承载配置中的第二配置。
  66. 根据权利要求58至65中任一项所述的装置,其特征在于,所述收发单元还用于向所述第一终端设备发送第一消息,所述第一消息包括所述第一终端设备的承载标识,所述第一RLC承载配置以及第二RLC承载配置。
  67. 根据权利要求58至66中任一项所述的装置,其特征在于,所述收发单元还用于向所述第二终端设备发送第二消息,所述第二消息包括所述第二终端设备的承载标识和第二RLC承载配置。
  68. 根据权利要求58至67中任一项所述的装置,其特征在于,所述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
  69. 根据权利要求58至68中任一项所述的装置,其特征在于,所述收发单元还用于接收所述第一网络设备发送的F1连接建立请求消息;
    所述收发单元还用于向所述第一网络设备发送F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承 载配置用于所述第一网络设备在系统广播消息中发送。
  70. 一种通信装置,其特征在于,包括:
    收发单元,用于向第二网络设备发送第一请求消息,所述第一请求消息用于请求所述第二网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的标识、所述第二终端设备的承载标识以及第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;
    所述收发单元还用于接收所述第二网络设备发送的第一响应消息。
  71. 根据权利要求70所述的装置,其特征在于,所述收发单元还用于根据所述处理单元确定的所述第二终端设备的承载标识和所述第一RLC承载配置之间的关联关系传输所述第二终端设备的消息。
  72. 根据权利要求70所述的装置,其特征在于,所述收发单元还用于接收所述第二网络设备发送的所述第一远端设备的承载标识。
  73. 根据权利要求70所述的装置,其特征在于,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端的承载标识具有关联关系。
  74. 根据权利要求70所述的装置,其特征在于,所述装置还包括:
    处理单元,用于确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
  75. 根据权利要求70至74中任一项所述的装置,其特征在于,所述收发单元还用于向所述第二网络设备发送第一传输消息,所述第一传输消息用于为所述第二终端设备建立在所述第二网络设备和所述第一网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
  76. 根据权利要求70至75中任一项所述的装置,其特征在于,所述收发单元还用于接收所述第二网络设备发送的第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;
    所述收发单元还用于向所述第二网络设备发送第二响应消息,所述第二响应消息包括第二RLC承载配置中的第二配置。
  77. 根据权利要求70至76中任一项所述的装置,其特征在于,所述收发单元还用于接收所述第二网络设备发送的第三请求消息,所述第三请求消息用于请求所述第一网络设备修改所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;
    所述收发单元还用于向所述第二网络设备发送第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
  78. 根据权利要求70至74中任一项所述的装置,其特征在于,所述收发单元还用于通过第二F1逻辑连接向所述第二网络设备发送第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
  79. 根据权利要求70至74中任一项所述的装置,其特征在于,所述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
  80. 根据权利要求70至79中任一项所述的装置,其特征在于,所述收发单元还用于向所述第二网络设备发送F1连接建立请求消息;
    所述收发单元还用于接收所述第二网络设备发送的F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
  81. 一种通信装置,其特征在于,包括:
    收发单元,用于接收第一网络设备发送的第一请求消息,所述第一请求消息用于请求第二网络设备修改第一终端设备的上下文,所述第一请求消息包括所述第一终端设备的承载标识、第二终端设备的标识、所述第二终端设备的承载标识以及第一无线链路控制RLC承载配置,所述第一RLC承载配置用于在所述第一终端设备和所述第一网络设备之间传输所述第二终端设备的消息,所述第一RLC承载配置与所述第一终端设备的承载标识具有关联关系,所述第一终端设备的承载标识为所述第一终端设备和所述第二网络设备之间的承载标识,所述第二终端设备的承载标识为所述第二终端设备和所述第二网络设备之间的承载标识;
    所述收发单元还用于向所述第一终端设备发送第一响应消息。
  82. 根据权利要求81所述的装置,其特征在于,所述收发单元还用于向所述第一网络设备发送所述第一终端设备的承载标识。
  83. 根据权利要求81所述的装置,其特征在于,所述第一RLC承载配置、所述第一终端设备的承载标识和所述第二终端设备的承载标识之间具有关联关系。
  84. 根据权利要求81所述的装置,其特征在于,所述装置还包括:
    处理单元,用于确定所述第一RLC承载配置和第二RLC承载配置的关联关系,所述第二RLC承载配置为用于在所述第二终端设备和所述第一终端设备之间传输所述第二终端设备消息的承载配置,所述第二RLC承载配置与所述第二终端设备的承载标识具有关联关系。
  85. 根据权利要求81至84中任一项所述的装置,其特征在于,所述收发单元还用于接收所述第一网络设备发送的第一传输消息,所述第一传输消息用于为所述第二终端设备建立所述第一网络设备和所述第二网络设备之间的第一F1逻辑连接,所述第一传输消息包括所述第一终端设备的标识和第二RLC承载配置中的第一配置。
  86. 根据权利要求81至85中任一项所述的装置,其特征在于,所述收发单元还用于向所述第一网络设备发送第二请求消息,所述第二请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第二请求消息包括所述第二终端设备的承载标识;
    所述收发单元还用于接收所述第一网络设备发送的第二响应消息,所述第二响应消息 包括第二RLC承载配置中的第二配置。
  87. 根据权利要求81至86中任一项所述的装置,其特征在于,所述收发单元还用于向所述第一网络设备发送第三请求消息,所述第三请求消息用于请求所述第一网络设备建立所述第二终端设备的上下文,所述第三请求消息包括所述第二终端设备的承载标识;
    所述收发单元还用于接收所述第一网络设备发送的第三响应消息,所述第三响应消息包括第二RLC承载配置中的第二配置。
  88. 根据权利要求81至84中任一项所述的装置,其特征在于,所述收发单元还用于通过第二F1逻辑连接接收所述第一网络设备发送的第二传输消息,所述第二F1逻辑连接为所述第一终端设备在所述第一网络设备和所述第二网络设备之间的连接通道,所述第二传输消息包括所述第二终端设备的标识和第二RLC承载配置中的第一配置。
  89. 根据权利要求81至88中任一项所述的装置,其特征在于,所述收发单元还用于向所述第一终端设备发送第一消息,所述第一消息包括所述第一终端设备的承载标识,所述第一RLC承载配置以及第二RLC承载配置。
  90. 根据权利要求81至89中任一项所述的装置,其特征在于,所述收发单元还用于向所述第二终端设备发送第二消息,所述第二消息包括所述第二终端设备的承载标识和第二RLC承载配置。
  91. 根据权利要求81至90中任一项所述的装置,其特征在于,所述第二终端设备的标识包括空口标识或接口标识,所述空口标识包括所述第一网络设备分配的小区无线网络临时标识,所述接口标识包括F1接口用户标识。
  92. 根据权利要求81至91中任一项所述的装置,其特征在于,所述收发单元还用于接收所述第一网络设备发送的F1连接建立请求消息;
    所述收发单元还用于向所述第一网络设备发送F1连接建立响应消息,所述F1连接建立响应消息包括第二网络设备的系统消息和侧行链路无线承载配置,所述侧行链路无线承载配置用于所述第一网络设备在系统广播消息中发送。
  93. 一种通信装置,其特征在于,包括存储器和处理器,所述存储器用于存储计算机程序,所述处理器用于从存储器调用并运行所述计算机程序,使得所述通信装置执行如权利要求1至11,或如权利要求12至23,或如权利要求24至34,或如权利要求35至46中任一项所述的方法。
  94. 一种计算机存储介质,存储有程序,其特征在于,所述程序用于实现如权利要求1至11,或如权利要求12至23,或如权利要求24至34,或如权利要求35至46中任一项所述的方法。
  95. 一种通信系统,其特征在于,包括如权利要求47至57中任一项所述的通信装置和如权利要求58至69中任一项所述的通信装置。
  96. 一种通信系统,其特征在于,包括如权利要求70至80中任一项所述的通信装置和如权利要求81至92中任一项所述的通信装置。
PCT/CN2020/122596 2020-10-21 2020-10-21 一种通信方法及装置 WO2022082534A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/122596 WO2022082534A1 (zh) 2020-10-21 2020-10-21 一种通信方法及装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/122596 WO2022082534A1 (zh) 2020-10-21 2020-10-21 一种通信方法及装置

Publications (1)

Publication Number Publication Date
WO2022082534A1 true WO2022082534A1 (zh) 2022-04-28

Family

ID=81291387

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/122596 WO2022082534A1 (zh) 2020-10-21 2020-10-21 一种通信方法及装置

Country Status (1)

Country Link
WO (1) WO2022082534A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024067118A1 (zh) * 2022-09-28 2024-04-04 华为技术有限公司 通信方法和通信装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017078237A1 (en) * 2015-11-02 2017-05-11 Lg Electronics Inc. Method for transmitting and retransmitting a sps feedback in a wireless communication system and a device therefor
CN110035566A (zh) * 2018-01-12 2019-07-19 华为技术有限公司 数据传输方法、网络设备及存储介质
CN111294980A (zh) * 2019-03-28 2020-06-16 展讯通信(上海)有限公司 无线承载建立方法及装置
CN111586886A (zh) * 2019-02-15 2020-08-25 华为技术有限公司 一种无线回传链路的控制方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017078237A1 (en) * 2015-11-02 2017-05-11 Lg Electronics Inc. Method for transmitting and retransmitting a sps feedback in a wireless communication system and a device therefor
CN110035566A (zh) * 2018-01-12 2019-07-19 华为技术有限公司 数据传输方法、网络设备及存储介质
CN111586886A (zh) * 2019-02-15 2020-08-25 华为技术有限公司 一种无线回传链路的控制方法及装置
CN111294980A (zh) * 2019-03-28 2020-06-16 展讯通信(上海)有限公司 无线承载建立方法及装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024067118A1 (zh) * 2022-09-28 2024-04-04 华为技术有限公司 通信方法和通信装置

Similar Documents

Publication Publication Date Title
JP7164670B2 (ja) データ伝送方法およびデータ伝送装置
EP3479647B1 (en) Method for establishing a fronthaul interface and base station
WO2019080800A1 (zh) 一种信息传输方法和设备
CN113545098B (zh) 传输组播业务的方法和装置
EP3618472B1 (en) Communication method and apparatus
EP3664507B1 (en) Communication methods for a master base station and a terminal
CN112715055A (zh) 无线电接入网络和用于加速的网络接入的方法
CN110831007B (zh) 用户面完整性保护方法、装置及设备
KR20200098686A (ko) 통신 방법, 디바이스 및 시스템
EP3334225A1 (en) Wireless configuration method for wearable device, relevant device and base station
WO2022110168A1 (zh) 通信配置的方法和通信装置
EP4171122A1 (en) Method for iab network communication, and related device
WO2021185350A1 (zh) 一种通信方法、接入网设备、终端设备和核心网设备
CN114173368A (zh) 一种服务质量QoS的监测方法
EP3457752B1 (en) Data transmission methods and apparatuses
WO2022082534A1 (zh) 一种通信方法及装置
EP3813399B1 (en) Method, apparatus, chip, storage medium and computer program product for a communication device with at least two packet data convergence protocol (pdcp) entities
JP7101675B6 (ja) データ処理方法及び装置
WO2022110234A1 (zh) 一种数据传输方法及装置
CN115915265A (zh) 通信方法及通信装置
KR102525428B1 (ko) 무선 통신 시스템에서 하향링크 데이터 전송 방법 및 장치
WO2024067118A1 (zh) 通信方法和通信装置
WO2023279296A1 (zh) 无线通信方法、第一终端和通信设备
WO2022193275A1 (zh) 无线通信的方法、终端设备和网络设备
WO2022222748A1 (zh) 中继通信方法和装置

Legal Events

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

Ref document number: 20958117

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20958117

Country of ref document: EP

Kind code of ref document: A1