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WO2022228275A1 - Procédé, appareil et système de communication - Google Patents

Procédé, appareil et système de communication Download PDF

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Publication number
WO2022228275A1
WO2022228275A1 PCT/CN2022/088238 CN2022088238W WO2022228275A1 WO 2022228275 A1 WO2022228275 A1 WO 2022228275A1 CN 2022088238 W CN2022088238 W CN 2022088238W WO 2022228275 A1 WO2022228275 A1 WO 2022228275A1
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WO
WIPO (PCT)
Prior art keywords
network
configuration
cell
message
communication
Prior art date
Application number
PCT/CN2022/088238
Other languages
English (en)
Chinese (zh)
Inventor
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
Publication of WO2022228275A1 publication Critical patent/WO2022228275A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a communication method, device, and system.
  • the relay terminal equipment (relay user equipment, relay UE) and the remote terminal equipment (remote UE) communicate through proximity-based services5 ( (proximity-based services, ProSe) communication 5, PC5) interface connection.
  • proximity-based services5 (proximity-based services, ProSe) communication 5, PC5) interface connection.
  • ProSe proximity-based services
  • the roadside unit (RSU) (also known as the roadside unit) of the cellular vehicle to X (C-V2X) system is responsible for receiving real-time traffic such as traffic lights and road condition information sent by the application server. information, and dynamically broadcast to related vehicles to avoid or reduce traffic accidents.
  • Communication between the vehicle and the RSU uses PC5 or sidelink technology.
  • the RSU access to the network can directly access broadband through wired methods.
  • the UE establishes a connection with the RSU only for V2X communication, and does not access the network through the RSU, which will lead to a waste of network resources.
  • the present application provides a communication method, device and system for realizing a network node that supports communication with a terminal device through a PC5 interface, and communication and interaction with the network device, so that the network node can provide a sidelink for the terminal device.
  • Road relay service
  • the present application provides a communication method, which can be applied to a network device, or a processor in a network device, or a chip or a chip system, or a functional module or the like.
  • the method may include: receiving a first request message from a first device, and sending a first response message to the first device; wherein the first request message is used to indicate at least one public land mobile of the first device
  • the identification of the network public land mobile network, PLMN
  • the first device performs sideline communication with the remote terminal device, and communicates with the network device through the network interface;
  • the first response message is used to indicate the physical cell identification (physical cell identitier, PCI), the PCI is determined based on the identifier of the first PLMN, and the identifier of the first PLMN is one or more of the identifiers of the at least one PLMN.
  • communication between the first device and the network device can be implemented, and the first device can be associated with a cell serving the remote terminal device, so that sideline communication is performed between the first device and the remote terminal device, and It communicates with network equipment through a network interface to provide side link relay services for remote terminal equipment.
  • the PCI is determined based on the identifier of the first PLMN, which may specifically be: the cell corresponding to the PCI is associated with the first device.
  • the cell serving the remote terminal device can be accurately associated with the first device, so that the first device can provide a sidelink relay service for the remote terminal device.
  • the specific method for receiving the first request message from the first device may be: receiving the first request message from the first device through a network interface of a first type, the The first type of network interface is an interface between the network device and a distributed unit (distributed unit, DU); the first request message further includes indication information, and the indication information is used to indicate that the first device communicates with the remote
  • the end terminal device performs sideline communication, and communicates with the network device through a network interface; or, receives the first request message from the first device through a second-type network interface, and the second-type network interface uses
  • the second type of network interface is different from the first type of network interface.
  • a second request message is sent to the first DU, where the second request message is used to indicate the identity of the first device and the identity of the first PLMN;
  • a second response message where the second response message is used to indicate the information of the first cell, where the first cell has a corresponding relationship with the identifier of the first PLMN; the information of the first cell includes the PCI.
  • the first DU is determined according to the identity of the first PLMN. In this way, the first DU can be accurately associated with the first device, so that the cell associated with the first device is subsequently determined through the first DU.
  • the first DU and the first cell are determined according to the identifier of the first PLMN, and the first cell belongs to the first DU; a third request message is sent to the first DU, the The third request message is used to indicate the identity of the first device and the information of the first cell, where the information of the first cell includes the PCI and/or the cell identity; Three response messages, the third response message includes confirmation information. In this way, the cell serving the remote terminal device can be accurately associated with the first device.
  • the third request message is further used to indicate the identity of the first PLMN.
  • the first DU can accurately determine whether to accept the selection of the first cell in combination with the identifier of the first PLMN.
  • first information is sent to the first device, where the first information includes an identifier of a data radio bearer (DRB) and a quality of service corresponding to the DRB;
  • the second information of a device the second information includes a sideline configuration, and the sideline configuration is used for the remote terminal device to communicate with the first device through the proximity service communication 5 interface; through the first device
  • the device sends a first configuration message to the remote terminal device, where the first configuration message includes the DRB configuration, the sideline configuration and the cell radio network temporary identifier C-RNTI. In this way, the configuration for the remote terminal device can be completed, so that the subsequent remote terminal device can access the network device through the first device.
  • the sideline configuration includes sideline radio link control (radio link control, RLC) configuration, medium access control configuration and physical layer configuration; the RLC configuration includes the identifier of the DRB; The RLC bearer corresponds to the DRB.
  • RLC radio link control
  • the DRB configuration includes a packet data convergence protocol (packet data convergence protocol, PDCP) configuration
  • the PDCP configuration includes an identifier of the DRB.
  • packet data convergence protocol packet data convergence protocol
  • a fourth request message is sent to the first DU, where the fourth request message is used to request the first DU to allocate a cell radio network temporary identifier (C-RNTI); receiving A fourth response message from the first DU, where the fourth response message is used to indicate the C-RNTI.
  • C-RNTI cell radio network temporary identifier
  • the fourth request message includes indication information of the first device; the C-RNTI is allocated by the first DU for a cell corresponding to the first device, and the first The cell corresponding to the device is determined by the first DU according to the indication information of the first device. In this way, the first device can be associated with the corresponding cell.
  • the DRB configuration is generated. In this way, the DRB configuration constituting the first configuration message can be determined.
  • a sideline configuration is determined, and the sideline configuration is used for the remote terminal device to communicate with the first device through the proximity service communication 5 interface;
  • a device sends the sideline configuration, and the first network interface message corresponds to the first device; or sends a first message to the first device, where the first message includes the sideline configuration and an identifier information of the first device.
  • the sideline configuration for realizing sideline communication with the remote terminal device can be accurately provided to the first device.
  • the first response message is further used to indicate third information
  • the third information includes at least one of the following: a tracking code, a radio access network notification area code, or a cell identifier; wherein the The tracking code and the radio access network notification area code correspond to the PCI, and the cell identifier is used to identify a cell in the first PLMN. In this way, the mobility management of the terminal equipment can be realized.
  • the present application provides a communication method, which can be applied to a first device, or a processor in the first device, or a chip or a chip system, or a functional module, or the like.
  • the method may include: sending a first request message to a network device, where the first request message is used to indicate the identity of at least one PLMN of the first device; the first device performs sideline communication with the remote terminal device, and communicates with the remote terminal device.
  • the network device communicates through a network interface; receives a first response message from the network device, where the first response message includes a PCI, and the PCI is determined based on the identifier of the first PLMN, and the identifier of the first PLMN is the one or more of the identities of the at least one PLMN.
  • the communication between the first device and the network device can be realized, and the first device can be associated with the cell served by the remote terminal device, so that the first device and the remote terminal device can perform sideline communication and communicate with the remote terminal device.
  • the network devices communicate through a network interface to provide side link relay services for remote terminal devices.
  • the PCI is determined based on the identity of the first PLMN, which may specifically be: the cell corresponding to the PCI is associated with the first device.
  • the cell serving the remote terminal device can be accurately associated with the first device, so that the first device can provide a sidelink relay service for the remote terminal device.
  • the specific method of sending the first request message to the network device may be: sending the first request message to the network device through a first network type interface, the first type network The interface is the interface through which the network device communicates with the DU; the first request message further includes indication information, where the indication information is used to instruct the first device to perform sideline communication with the remote terminal device, and to communicate with the The network device communicates through a network interface; or, sends the first request message to the network device through a second network type interface, where the second type network interface is used for the first device to communicate with the network device , the second type of network interface is different from the first type of network interface.
  • the communication between the first device and the network device can be realized by reusing a commonly used network interface or a new network interface.
  • a second message is sent through the proximity service communication 5 interface, where the second message includes the identity of the first PLMN and the PCI.
  • the remote terminal device can select the first device, so as to realize the connection between the first device and the remote terminal device.
  • first information from the network device, where the first information includes a DRB identifier and a quality of service corresponding to the DRB; send second information to the network device, the second information
  • the information includes a sideline configuration, the sideline configuration is used for the remote terminal device to communicate with the first device through the proximity service communication 5 interface; receiving a first configuration message from the network device, the first configuration message
  • the configuration message includes the DRB configuration, the sideline configuration and the C-RNTI; and the first configuration message is sent to the remote terminal device. In this way, the configuration for the remote terminal device can be completed, so that the subsequent remote terminal device can access the network device through the first device.
  • the sideline configuration is determined according to the identifier of the DRB and the quality of service corresponding to the DRB. In this way, the sideline configuration can be accurately determined, so as to realize the sideline communication between the first device and the remote terminal device.
  • the sideline configuration includes sideline RLC configuration, medium access control configuration, and physical layer configuration; the RLC configuration includes an identifier of the DRB; wherein the RLC bearer corresponds to the DRB.
  • the DRB configuration includes a PDCP configuration
  • the PDCP configuration includes an identifier of the DRB
  • the DRB configuration is generated by a centralized unit (CU).
  • CU centralized unit
  • a sideline configuration from the network device is received through a first network interface message, where the sideline configuration is used for the remote terminal device to communicate with the first device through the adjacent service communication interface;
  • the first network interface message corresponds to the first device; or, a first message is received from the network device, where the first message includes the sideline configuration and information identifying the first device.
  • the first response message is further used to indicate third information
  • the third information includes at least one of the following: a tracking code, a radio access network notification area code, or a cell identifier; wherein the The tracking code and the radio access network notification area code correspond to the PCI, and the cell identifier is used to identify a cell in the first PLMN. In this way, the mobility management of the terminal equipment can be realized.
  • the second message further includes at least one of the following: a tracking code, a radio access network notification area code, or a cell identifier; wherein the tracking code and the radio access network notification area code are the same as the The PCI corresponds, and the cell identifier is used to identify a cell in the first PLMN. In this way, the mobility management of the terminal equipment can be realized.
  • the present application further provides a communication apparatus, where the communication apparatus may be a network device, and the communication apparatus has the functions of implementing the above-mentioned first aspect or each possible design example of the first aspect.
  • the functions can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the communication device includes a transceiver unit and a processing unit, and these units can perform the corresponding functions in the first aspect or each possible design example of the first aspect.
  • these units can perform the corresponding functions in the first aspect or each possible design example of the first aspect.
  • the structure of the communication device includes a communication interface and a processor, and optionally a memory, the communication interface is used for sending and receiving messages, information or data, and for communicating with other devices in the communication system.
  • the device performs communication interaction
  • the processor is configured to support the communication apparatus to perform corresponding functions in the first aspect or each possible design example of the first aspect.
  • the memory is coupled to the processor and holds program instructions and data necessary for the communication device.
  • the present application further provides a communication apparatus, the communication apparatus may be a first device, and the communication apparatus has the functions of implementing the first aspect or each possible design example of the first aspect.
  • the functions can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the communication device includes a transceiver unit and a processing unit, and these units can perform the corresponding functions in the second aspect or each possible design example of the second aspect.
  • these units can perform the corresponding functions in the second aspect or each possible design example of the second aspect.
  • the structure of the communication device includes a communication interface and a processor, and optionally a memory, the communication interface is used for sending and receiving messages, information or data, and for communicating with other devices in the communication system.
  • the device performs communication interaction
  • the processor is configured to support the communication apparatus to perform corresponding functions in the second aspect or each possible design example of the second aspect.
  • the memory is coupled to the processor and holds program instructions and data necessary for the communication device.
  • an embodiment of the present application provides a communication system, which may include the above-mentioned first device of a remote terminal device and a network device.
  • a computer-readable storage medium provided by an embodiment of the present application stores a program instruction, and when the program instruction is executed on a computer, the computer is made to execute the first aspect and the first aspect of the present application embodiment.
  • a computer-readable storage medium can be any available medium that can be accessed by a computer.
  • computer readable media may include non-transitory computer readable media, random-access memory (RAM), read-only memory (ROM), electrically erasable Except programmable read only memory (electrically EPROM, EEPROM), CD-ROM or other optical disk storage, magnetic disk storage medium or other magnetic storage device, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of Any other media accessed by a computer.
  • RAM random-access memory
  • ROM read-only memory
  • EEPROM electrically erasable Except programmable read only memory
  • CD-ROM or other optical disk storage magnetic disk storage medium or other magnetic storage device, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of Any other media accessed by a computer.
  • the embodiments of the present application provide a computer program product including computer program codes or instructions, which, when run on a computer, enables the computer to implement the first aspect or any possible design of the first aspect, or the above The method described in the second aspect or any possible design of the second aspect.
  • the present application further provides a chip, including a processor, which is coupled to a memory and configured to read and execute program instructions stored in the memory, so that the chip implements the above-mentioned first aspect Or any possible design of the first aspect, or the method described in the second aspect or any possible design of the second aspect.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by the present application.
  • FIG. 2 is a schematic diagram of direct communication between a terminal device provided by the application and the terminal device through a PC5 interface;
  • FIG. 3 is a schematic diagram that a remote UE can establish a connection with a network device through a relay UE provided by the present application;
  • FIG. 5 is a schematic diagram of a control plane protocol stack between a remote terminal device and a network device provided by the present application;
  • FIG. 6 is a schematic diagram of a user plane protocol stack between a remote terminal device and a network device provided by the present application;
  • FIG. 9 is a schematic flowchart of a remote terminal device accessing a network device through a first device provided by the present application.
  • FIG. 10 is a schematic flowchart of another remote terminal device accessing a network device through a first device provided by the present application;
  • 11 is a schematic diagram of a protocol stack for transmitting a message of sideline configuration between a first device and a network device provided by the present application;
  • FIG. 12 is a schematic structural diagram of a communication device provided by the application.
  • FIG. 13 is a structural diagram of a communication device provided by this application.
  • Embodiments of the present application provide a communication method, apparatus, and system, which are used to implement a network node that supports communication with a terminal device through a PC5 interface, and communicate and interact with the network device, so that the network node can provide a sidelink for the terminal device. relay service.
  • the methods and devices described in this application are based on the same technical concept. Since the methods and devices have similar principles for solving problems, the implementations of the devices and methods can be referred to each other, and repeated descriptions will not be repeated here.
  • At least one (species) refers to one (species) or multiple (species), and multiple (species) refers to two (species) or more than two (species).
  • FIG. 1 shows a schematic diagram of the architecture of a possible communication system to which an embodiment of the present application is applied, where the architecture of the communication system includes a network device, a first device, and a terminal device. in:
  • the network device is a device with a wireless transceiver function or a chip that can be provided in the network device, and the network device includes but is not limited to: a base station (generation node B, gNB), a radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), access point (AP), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP) in wireless fidelity (wireless fidelity, Wi-Fi) system Or transmission point, TP), etc., and can also be a network node that constitutes a gNB or a transmission point, such as a baseband unit (BBU) and the like.
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • a gNB may include a centralized unit (CU) and a distributed unit (DU).
  • the gNB may also include a radio unit (RU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB, for example, CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions
  • DU implements wireless chain
  • RRC radio resource control
  • RLC radio link control
  • media access control media access control
  • MAC physical (physical, PHY) layers.
  • the network device may be a CU node, a DU node, or a device including a CU node and a DU node.
  • the CU may be divided into network equipment in the access network RAN, and the CU may also be divided into network equipment in the core network CN, which is not limited.
  • multiple DUs may share one CU.
  • one DU can also be connected to multiple CUs.
  • the CU and DU can be connected through the F1 interface.
  • One DU can manage one or more cells, and each cell has a corresponding cell identifier.
  • the CU and DU may also be physically separated, except for the case where the base station is composed of CU and DU, that is, except for the case where the CU and DU are deployed together. That is to say, CU and DU can be considered as two separate nodes.
  • the network device may be a CU.
  • the terminal equipment may also be referred to as user equipment (UE), 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.
  • UE 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 is a remote terminal device and needs to be provided with a relay service.
  • the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation security ( transportation safety), wireless terminals in smart cities, smart wearable devices (smart glasses, smart watches, smart headphones, etc.), wireless terminals in smart homes, etc. Chips or chip modules (or chip systems) that can be installed in the above equipment.
  • the embodiments of the present application do not limit application scenarios.
  • a terminal device with a wireless transceiver function and a chip that can be installed in the aforementioned terminal device are collectively referred to as a terminal device.
  • the terminal device may communicate with the first device through the PC5 interface, and establish a connection with the network device through the first device for data communication.
  • the first device is a network node that performs sidelink (SL) communication with a remote terminal device and communicates with the network device through a network interface.
  • the sideline (link) communication between the first device and the remote terminal device may be communication between the first device and the remote terminal device through a PC5 interface.
  • the first device can provide a sidelink relay service (sidelink relay) for the remote terminal device.
  • the first device can establish a connection between a remote terminal device and a network device for data communication, and can provide a relay service for the remote terminal device.
  • the first device may be, but is not limited to, an RSU or a DU that supports communication with the terminal device through PC5.
  • the network interface involved in this application is the interface between network equipment and network equipment, such as the F1 interface between CU and DU, the Xn interface between base station and base station, or the NG interface between base station and core network equipment.
  • data communication between terminal devices and terminal devices can be performed through a network, or communication between terminal devices and terminal devices can be directly performed without the aid of network devices.
  • the interface between the terminal device and the terminal device is called the PC5 interface, and the Uu interface between the terminal device and the network device.
  • the link between the terminal device and the terminal device is called a sidelink.
  • a typical application scenario of sidelink communication is the vehicle-to-everything (V2X) service (hereinafter referred to as Internet of Vehicles).
  • V2X vehicle-to-everything
  • each vehicle is a UE, and data transmission between the UE and the UE can be performed directly through the sidelink without going through the network, so the communication delay can be effectively reduced.
  • Sidelink supports broadcast, unicast, and multicast.
  • Sidelink broadcast communications are similar to network devices broadcasting system information.
  • Sidelink unicast communication is similar to data communication after an RRC connection is established between a terminal device and a network device, and a unicast connection needs to be established between the two terminal devices first.
  • the unicast communication can only be performed between two terminal devices that have established a unicast connection.
  • Sidelink multicast communication refers to the communication between all terminal devices in a communication group, and the terminal devices in the group can send and receive data of the multicast service.
  • the node that performs the relay function in the middle is the UE type, that is, the relay UE.
  • the relay UE and the remote UE are connected through the PC5 interface, the relay UE and the network device are connected through the Uu interface, and the remote UE can establish a connection with the network device through the relay UE for data transmission.
  • the roadside unit (RSU) (also known as the roadside unit) in the Internet of Vehicles system is responsible for receiving real-time traffic information such as traffic lights and road condition information issued by the application server, and dynamically broadcasts it to the relevant vehicles to avoid or reduce traffic accidents.
  • Communication between the vehicle and the RSU uses PC5 or sidelink technology.
  • the RSU access to the network can directly access broadband through wired methods.
  • the UE establishes a connection with the RSU only for V2X communication, and does not access the network through the RSU, which will lead to a waste of network resources.
  • RSU can be reused to provide network access services for terminal equipment, so that RSU can act as a network node and act as a relay node.
  • the current side link relay device is of the terminal device type, and communicates with the network device through the Uu interface. Therefore, the current communication mechanism based on the Uu interface cannot be multiplexed into the communication mechanism based on the network interface, that is, The transport mechanism in the scenario shown in FIG. 3 cannot be directly applied to the scenario shown in FIG. 1 .
  • an embodiment of the present application provides a communication method, which is used to implement a network node that supports communication with a terminal device through a PC5 interface, and communicates and interacts with the network device through a network interface, so as to realize that the network node can be a terminal device.
  • the network node when the network node provides the side link relay service for the terminal device, it can be compatible with the remote terminal device in the current L2 relay, so that the process of the remote terminal device does not occur. Change.
  • what can implement the relay function may be the first device, or a processor in the first device, or a chip or a chip system, or a functional module, etc.;
  • the incoming service may be a network device, or a processor in the network device, or a chip or a chip system, or a functional module, and so on.
  • only the first device and the network device are taken as examples to describe the communication method provided by the present application in detail, but the present application is not limited.
  • a communication method provided by an embodiment of the present application is applicable to the communication system shown in FIG. 1 .
  • the specific flow of the method may include:
  • Step 401 The first device sends a first request message to the network device, where the first request message is used to indicate the identifier of at least one public land mobile network (PLMN) of the first device;
  • PLMN public land mobile network
  • the first device is used as a network node, and a network interface needs to be established between the first device and the network device.
  • the first device provides the L2 sidelink relay service for the remote terminal device, and the PDCP of the remote terminal device is terminated on the network device behind the first device.
  • the control plane protocol stack and the user plane protocol stack between the remote terminal device and the network device may be as shown in FIG. 5 and FIG. 6 , respectively.
  • the control plane protocol and the user plane protocol both adopt the transmission protocols commonly used in the current network nodes, such as the stream control transmission protocol (SCTP) and the user plane general packet radio service tunnel protocol (general packet radio service, GPRS). )tunneling protocol-user, GTP-U).
  • SCTP stream control transmission protocol
  • GPRS general packet radio service tunnel protocol
  • the network interface for communication between the first device and the network device may reuse the current interface, or introduce a new interface for implementing the first device and the network device. communication between network devices.
  • the first device sends the first request message to the network device it may be implemented by, but not limited to, the following two methods:
  • Method a1 The first device sends the first request message to the network device through a first network-type interface, where the first-type network interface is an interface for the network device to communicate with the DU; the first request The message further includes indication information, where the indication information is used to instruct the first device to perform sideline communication with the remote terminal device and communicate with the network device through a network interface.
  • the first type of network interface is a multiplexed interface currently used for communication between the network device and the DU.
  • the first type of network interface may be an F1 interface or other interface, which is not limited in this application.
  • the indication information may be carried in the first request message, so that the network device knows that the first device is not a DU that currently does not support communication with the terminal device through the PC5 interface.
  • Method a2 The first device sends the first request message to the network device through a second network type interface, the second type network interface is used for the first device and the network device to communicate, so The second type of network interface is different from the first type of network interface.
  • the second network type interface may be a new interface introduced to implement communication between the first device and the network device.
  • the network device may communicate with the DU through a first type of network interface and communicate with the first device through a second type of network interface.
  • the first request message is used to indicate an identifier (PLMN ID) of at least one PLMN of the first device, and the first request message may include the first device
  • PLMN ID an identifier
  • the identification of at least one PLMN can be realized, or, it can also be realized by including information indicating the identification of at least one PLMN of the first device in the first request message. Of course, it can also be realized in other ways. Not limited.
  • the identity of the at least one PLMN may be used to indicate at least one PLMN to which the first device belongs.
  • the first device may be deployed by an operator, so the first device may indicate the operator information to which it belongs by using the PLMN identifier.
  • Step 402 The network device sends a first response message to the first device, where the first response message is used to indicate a physical cell identitier (PCI), and the PCI is determined based on the identity of the first PLMN.
  • the identifier of the first PLMN is one or more of the identifiers of the at least one PLMN.
  • the first response message is used to indicate the PCI, which may be implemented by including the PCI in the first response message, or the first response message may also include
  • the implementation of the information indicating the PCI may also be implemented in other manners, which is not limited in this application.
  • the PCI when the identifier of the first PLMN is one of the identifiers of the at least one PLMN, the PCI is one; when the identifier of the first PLMN is more than one of the identifiers of the at least one PLMN.
  • the PCI may include PCIs corresponding to the identifiers of multiple PLMNs, that is, the PCI may be multiple PCIs; when the identifiers of the first PLMN are multiple of the identifiers of the at least one PLMN , the PCI may also be one of the PCIs corresponding to the identifiers of multiple PLMNs, that is, the PCI is one of the multiple PCIs. It should be understood that when the identifier of the first PLMN is multiple of the identifiers of the at least one PLMN, it may be part or all of the identifiers of the at least one PLMN, which is not limited in this application.
  • a network device may manage multiple cells, and each cell has one PCI.
  • the first device needs to be associated with at least one cell to be able to work normally, because the remote terminal device needs to rely on PCI to derive the secret key required for data communication after accessing the network through the first device. encryption. Therefore, after receiving the first request message from the first device, the network device will associate at least one cell for the first device, and notify the first device of the PCI of the cell.
  • the network device associates at least one cell with the first device may specifically be: the network device selects at least one cell among multiple cells managed by the network device, and associates the selected at least one cell with the first cell. device to associate. It should be noted that the above-mentioned process of associating at least one cell for the first device by the network device may be implemented by internal logic of the network device.
  • the PCI is determined based on the identifier of the first PLMN, which can be understood as that the PCI is associated with the first PLMN, or that the cell corresponding to the PCI is associated with the first PLMN.
  • the association of the first device may also be understood as the association of the PCI with the first device.
  • the specific method for determining the PCI based on the identifier of the first PLMN may be: the network device determines a cell belonging to the first PLMN among the cells managed by the network device, and then judges and determines the cell that belongs to the first PLMN. The load situation of the selected cell or the situation associated with other first devices, select a cell with a lower load or less association with other first devices among these cells based on the judgment result, and further determine the PCI of the selected cell, that is, obtain a cell based on the The PCI determined by the identifier of the first PLMN. It should be noted that the implementation process of the network device determining the PCI based on the identifier of the first PLMN may be an internal logic implementation of the network device.
  • the first response message may also be used to indicate third information
  • the third information may include at least one of the following: tracking area code (TAC), wireless access Network notification area code (RAN notification area code, RNAC) or cell identity (cell identity); wherein, the tracking code and the radio access network notification area code correspond to the PCI, and the cell identity can be used in A cell is identified in the first PLMN.
  • TAC tracking area code
  • RAN notification area code RAN notification area code
  • cell identity cell identity
  • the first response message may also be used to indicate third information, which may be implemented by including the third information in the first response message, or may indicate that the third information is included in the first response message.
  • third information may be implemented by including the third information in the first response message, or may indicate that the third information is included in the first response message.
  • the information realization of the information can also be realized in other ways, which is not limited in this application.
  • the cell identifier is one, which can be used to uniquely identify a cell in the one PLMN; when there are multiple identifiers of the first PLNM, all There are multiple cell identifiers, and each cell identifier is used to uniquely identify a cell in the corresponding PLMN.
  • the tracking code and the radio access network notification area code may be information used for terminal equipment mobility management.
  • the first device may support an idle state terminal device (RRC_IDLE) or an inactive state terminal device (RRC_INACTIVE UE), and the first response message may be used to indicate that the third information is used for the terminal device.
  • RRC_IDLE idle state terminal device
  • RRC_INACTIVE UE inactive state terminal device
  • the information of device mobility management, that is, the tracking code and the radio access network notification area code can be indicated.
  • the first device in order to enable a remote terminal device to access the network device through the first device, the first device needs to provide necessary cell-related information for the remote terminal device. Since the first device does not provide a Uu interface, in this embodiment of the present application, the first device needs to obtain the cell-related information with the help of the network device, for example, it can be obtained by the methods in the above steps 401 and 402, Of course, it can also be obtained in other ways. In this embodiment of the present application, only the methods of step 401 and step 402 are used as examples for description, but this is not a limitation of the present application.
  • the processes of the foregoing steps 401 and 402 may be implemented in the process of establishing the interface between the first device and the network device, or may be implemented in other processes, which are not implemented in this embodiment of the present application. limited.
  • the first request message may be an interface establishment request message
  • the first response message may be an interface establishment response message.
  • the first device may further perform step 403: the first device sends a second message through the PC5 interface, and the second message may include the first The identity of a PLMN and the PCI.
  • the second message may further include at least one of the following: the tracking code, the radio access network notification area code, or the cell identifier.
  • the first device when the first device sends the second message through the PC5 interface, the first device may send the second message on the PC5 interface in a broadcast manner, or in a unicast or multicast manner. Send, send to the remote terminal device, so as to assist the remote terminal device to select a suitable first device.
  • the first device may determine one PCI as a cell that provides services for the remote terminal device, and at this time, the first device may determine the determined PCI A PCI is carried in the second message.
  • the remote terminal device may receive the After the second message, one PCI is selected from the plurality of PCIs as the cell to be accessed.
  • the first device when there are multiple PCIs, the first device generates one piece of the second message for each PCI, and each PCI is carried in the corresponding second message, that is, One PCI corresponds to one second message. And each second message corresponds to a different L2ID.
  • the remote terminal device may use the L2ID corresponding to the second message to establish a connection with the first device.
  • the network device may be a base station, or the network device may be a CU.
  • the distributed base station may be composed of a CU and a DU.
  • the network device when the network device is a CU, or when the network device is a distributed base station, the implementation of the above steps 401 and 402 may be implemented by the first device and the CU, as shown in FIG. 7 or FIG. 8 shown.
  • steps 401 and 402 are implemented by the CU, there may also be a flow as shown in FIG. 7 or FIG. 8 between the steps 401 and 402 . specific:
  • the specific process may include the following steps:
  • Step 701 The CU sends a second request message to the first DU, where the second request message is used to indicate the identity of the first device and the identity of the first PLMN.
  • the identifier of the first device is used to uniquely identify the first device on the interface between the CU and the first DU. It can also be understood that the identifier of the first device is allocated by the CU for the first device, and is used for the identifier of the interface between the CU and the first DU. In this application, the identifier of the first device may also be referred to as the first identifier of the first device.
  • the second request message is used to indicate the identity of the first device and the identity of the first PLMN, and the second request message may include the identity of the first device.
  • the implementation of the identity and the identity of the first PLMN may also be implemented by the second request message including information indicating the identity of the first device and the identity of the first PLMN.
  • it can also be implemented in other manners, which is not limited in this application.
  • the first DU may be a DU associated with the first device.
  • the CU may further perform step 700: the CU determines the first DU according to the identifier of the first PLMN.
  • the step 700 may also be implemented by the internal logic of the CU.
  • Step 702 The CU receives a second response message from the first DU, where the second response message is used to indicate the information of the first cell, and the first cell has a corresponding relationship with the identifier of the first PLMN ; the information of the first cell includes the PCI.
  • the second response message may also include a second identifier of the first device, and the second identifier of the first device and the first identifier of the first device are used together in the CU and all devices.
  • the first device is uniquely identified on the interface between the first DUs.
  • the first identifier of the first device is the identifier of the first device mentioned above.
  • the second identifier of the first device is allocated by the first DU for the first device, and is used for the identifier of the interface between the CU and the first DU.
  • the second response message may also be used to indicate at least one of the following tracking codes, radio access network notification area codes, or cell identifiers.
  • the first response message in the above step 402 is also used to indicate the tracking code. code or the radio access network notification area code.
  • the CU determines the tracking code or the radio access network notification area after receiving the PCI code, and then indicate to the first device through the first response message in step 402.
  • the first cell may be determined by the first DU according to the identity of the first device and the identity of the first PLMN. It can also be understood that the first DU is associated with the first cell for the first device.
  • the first DU may perform step 702a: the first DU determines the first cell according to the identity of the first device and the identity of the first PLMN.
  • the step 702a may be the internal implementation logic of the first DU.
  • the CU selects the first DU, and the first DU selects the cell.
  • the CU may be a process in which the CU selects the first DU and the cells under the first DU. As shown in Figure 8, the specific process may include the following steps:
  • Step 801 The CU determines a first DU and a first cell according to the identifier of the first PLMN, and the first cell belongs to the first DU.
  • the CU Since an F1 interface is currently established between the CU and at least one DU, during the establishment of the F1 interface, the CU knows which cells are included under at least one DU, so the CU can further determine the first DU after determining the first DU. the first cell.
  • Step 802 The CU sends a third request message to the first DU, where the third request message is used to indicate the identity of the first device and the information of the first cell, the information of the first cell Including the PCI and/or cell identity.
  • the third request message is further used to indicate the identity of the first PLMN.
  • the third request message is used to indicate the identity of the first device and the information of the first cell, or is also used to indicate the identity of the first PLMN, which can be implemented by including the above information, It can also be implemented by including information indicating the above-mentioned information, which is not limited in this application.
  • Step 803 The CU receives a third response message from the first DU, where the third response message includes confirmation information.
  • the third response message includes the confirmation information, it indicates that the first DU accepts the first cell determined by the CU.
  • the first DU may reject the CU, and at this time, the third response message may include rejection information.
  • the communication between the first device and the network device can be realized, and the first device can be associated with a cell serving the remote terminal device, so that sideline communication is performed between the first device and the remote terminal device, And it communicates with the network equipment through the network interface, so as to provide the side link relay service for the remote terminal equipment.
  • the initialization of the first device is completed through the above-mentioned FIG. 4 , FIG. 7 or FIG. 8 .
  • the above initialization process is only an example, and there may be other initialization methods, which are not limited in this application.
  • the remote terminal device can access the network device through the first device.
  • the process for the remote terminal device to access the network device through the first device may be a process for the remote terminal device to enter a connected state from an idle state, or the process for the remote terminal device to enter a connected state.
  • the process of entering the connected state from the inactive state, or the process of the remote terminal device performing re-establishment through the first device may also be other processes, which are not limited in this application.
  • FIG. 9 shows a schematic flowchart of a remote terminal device accessing a network device through a first device, which may specifically include:
  • Step 901 The network device sends first information to the first device, where the first information includes an identifier of a data radio bearer (DRB) and a quality of service (quality of service, QoS) corresponding to the DRB ).
  • DRB data radio bearer
  • QoS quality of service
  • the DRB is a Uu DRB established between the remote terminal device and the network device, and the data of the DRB needs to pass through the first device between the remote terminal device and the network device.
  • the identifier of the DRB and the QoS of the DRB are for the first device to determine the sideline configuration, so as to realize the sideline transmission between the first device and the remote terminal device.
  • the network device determines the QoS corresponding to the DRB, and the specific method may be as follows: the network device determines the QoS of the DRB based on the QoS of the QoS flow that has a mapping relationship with the DRB . Exemplarily, at least one QoS flow has a mapping relationship with the DRB.
  • the network device may use the QoS of the QoS flow as the QoS corresponding to the DRB; if the at least one QoS flow is multiple QoS flows, the network device may The QoS of the QoS flow with the highest priority among the multiple QoS flows may be used as the QoS corresponding to the DRB, or the parameter with the highest QoS requirement may be extracted from the QoS parameters of different QoS flows to form the QoS corresponding to the DRB. Wherein, the highest QoS requirement is understood differently for different QoS parameters.
  • the highest QoS requirement is the shortest delay; for the rate parameter, the highest QoS requirement is the highest rate; for the reliability parameter, the highest The highest QoS requirement means the highest reliability requirement; for the priority parameter, the highest QoS requirement means the highest priority.
  • the first information may further include other information, which will not be listed here.
  • the first information may be sent through a configuration request message sent by the network device to the first device.
  • Step 902 The first device sends second information to the network device, the second information includes a sidelink configuration, and the sidelink configuration is used for the remote terminal device and the first The device communicates through a PC5-based interface.
  • the side row configuration includes a side row RLC configuration, a medium access control (MAC) configuration and a physical layer configuration; the side row RLC configuration includes the identifier of the Uu DRB; wherein, the side row RLC bearer corresponds to the Uu DRB , that is, there is a mapping relationship between the side row RLC bearer and the Uu DRB.
  • MAC medium access control
  • the second information may be a response message sent by the first device to the network device in response to the configuration request message. send.
  • the side row configuration is generated by the first device for the remote device.
  • the first device may further perform step 902a: the first device determines the sideline configuration according to the identifier of the DRB and the quality of service corresponding to the DRB.
  • Step 903 The network device sends a first configuration message to the remote terminal device through the first device, where the first configuration message includes the DRB configuration, the sideline configuration, and the cell radio network temporary identifier (cell radio). network temporary identifier, C-RNTI).
  • the first configuration message includes the DRB configuration, the sideline configuration, and the cell radio network temporary identifier (cell radio). network temporary identifier, C-RNTI).
  • the DRB configuration includes a PDCP configuration (that is, a Uu PDCP configuration), and the Uu PDCP configuration includes an identifier of the DRB.
  • the network device needs to generate the DRB configuration before step 903 .
  • the first configuration message may be an RRC reconfiguration message.
  • the remote terminal device may perform step 904: the remote terminal device sends a completion message to the network device through the first device.
  • the end message may be an RRC reconfiguration complete message.
  • the network device may further perform step 905: the network device sends a completion indication to the first device, which is used to indicate completion of the remote terminal device. Configuration of end devices.
  • the protocol stack shown in FIG. 5 can also be used for the protocol stack when the remote terminal device and the network device interact through the first device in step 904 and step 905 .
  • the remote terminal device may further perform step 900: the remote terminal device sends a third message to the network device through the first device, and the The third message is used to indicate that the remote terminal device has established a connection with the network device.
  • the third message may be message 5 (message 5, MSG 5), that is, an RRC establishment complete message, used to confirm that an RRC connection is successfully completed.
  • message 5 messages 5, MSG 5
  • RRC establishment complete message used to confirm that an RRC connection is successfully completed.
  • the network device may be a base station, or the network device may be a CU.
  • the distributed base station may be composed of a CU and a DU.
  • the operations performed by the network device in the foregoing FIG. 9 may be implemented by the CU, as shown in FIG. 10 .
  • the CU may also perform the following steps:
  • Step 1001 The CU sends a fourth request message to the first DU, where the fourth request message is used to request the first DU to allocate a C-RNTI.
  • the fourth request message may include indication information of the first device; the indication information of the first device may be used to determine a cell associated with the first device.
  • the indication information of the first device may be an identifier of the first device.
  • Step 1002 The CU receives a fourth response message from the first DU, where the fourth response message is used to indicate the C-RNTI.
  • the C-RNTI is allocated by the first DU for a cell corresponding to the first device, and the cell corresponding to the first device is the first DU according to the indication information of the first device. definite.
  • the network device generates the DRB configuration
  • the CU may determine the first configuration message based on the DRB configuration determined by the CU itself, the C-RNTI determined by the DU, and the sideline configuration determined by the first device, as shown in step 1003 in FIG. 10 . .
  • the CU when the CU receives the completion indication from the remote terminal device, the CU may also send the completion indication to the first DU, as shown in 1004 in FIG. 10 . shown.
  • the network device can be configured for the remote terminal device to ensure that the remote terminal device completes the communication with the network device through the first device.
  • the above-mentioned processes shown in FIG. 9 and FIG. 10 may be performed on the basis that a cell has been associated with the first device in advance.
  • the method for associating the cell with the first device may be, but not limited to, the manner shown in FIG. 4 , FIG. 7 or FIG. 8 .
  • the processes shown in FIG. 9 and FIG. 10 may not depend on that the first device has been associated with the cell.
  • the first possible way is: when the CU receives the third After the message is sent, a DU is selected for the remote terminal device, and the selected DU is associated with a cell for the first device; the second possible way is that the CU selects a cell and informs the selected DU.
  • the fourth response message may also indicate cell information, such as PCI, etc.; in the second possible manner, in the foregoing step 1001 , the fourth request message may also indicate cell information, such as PCI or cell identity. Adaptively, the above-mentioned cell information may also be included in the above-mentioned first configuration message.
  • the first device can determine the side row configuration by itself.
  • the first device needs to rely on the network device to provide a sideline configuration to implement communication with the remote terminal device.
  • the sideline configuration needs to be transmitted between the illustrated first device and the network device based on the network interface.
  • the network device determines a sideline configuration, and the sideline configuration is used for the remote terminal device to communicate with the first device through a PC5 interface; the network device sends the information to the The first device sends the sideline configuration, and the first network interface message corresponds to the first device; or the network device sends a first message to the first device, where the first message includes the Side-line configuration and information identifying the first device, optionally, the information identifying the first device is identifying the first device on an interface.
  • the protocol stack for transmitting the message of the sideline configuration between the first device and the network device may be as shown in FIG. 11 .
  • the interaction of control plane signaling between the first device and the network device is carried out based on SCTP, wherein the Uu PDCP layer is optional, that is, when the message of the sideline configuration is transmitted between the first device and the network device, PDCP processing may not be performed.
  • the message configured on the transmission side may be an RRC configuration message. Because the first device and the network device use the same protocol stack when exchanging RRC configuration messages for the remote terminal device. Therefore, it is necessary to distinguish on the interface whether the RRC configuration message is for the first device or for a remote terminal device accessing the network device through the first device. Therefore, one way is to introduce different interface messages on the network interface to carry the RRC configuration message of the first device and the RRC configuration message of the remote terminal device. For example, the above-mentioned first network interface message corresponding to the first device can be used. bear.
  • Another way is to use the same interface message, but introduce a default identifier for the first device in the message sent to the first device, for example, it can be sent to the first device through the same first message, in the first message Include information identifying the first device.
  • the sideline configuration determined by the network device can be accurately sent to the first device, so that the first device can implement sideline communication with the remote terminal device.
  • the first device when the first device is an RSU, the first device in the above embodiment may be replaced. In another possible implementation manner, the first device may also support a PC5-based interface with the UE. For the communicating DU, at this time, the associated cell in the DU is used as the serving cell associated with the sideline relay.
  • the communication apparatus 1200 may include a transceiver unit 1201 and a processing unit 1202 .
  • the transceiver unit 1201 is used for the communication device 1200 to receive information (message or data) or send information (message or data), and the processing unit 1202 is used to control and manage the actions of the communication device 1200 .
  • the processing unit 1202 may also control the steps performed by the transceiver unit 1201 .
  • the communication apparatus 1200 may specifically be the first device in the foregoing embodiment, a processor in the first device, or a chip, or a chip system, or a functional module, etc.; or, the communication apparatus 1200 Specifically, it may be the network device in the foregoing embodiment, the processor of the network device, or a chip, or a chip system, or a functional module, or the like.
  • the communication apparatus 1200 when configured to implement the functions of the network device (eg, CU) in any of the embodiments described in FIG. 4 and FIG. 7 to FIG. 10 , it may specifically include:
  • the transceiver unit 1201 is configured to receive a first request message from a first device and send a first response message to the first device; the processing unit 1202 is configured to control the transceiver unit 1201 to perform the above operations;
  • the first request message is used to indicate the identity of at least one PLMN of the first device; the first device performs sideline communication with the remote terminal device, and communicates with the network device through a network interface;
  • the first response message It is used to indicate the PCI, where the PCI is determined based on the identifier of the first PLMN, and the identifier of the first PLMN is one or more of the identifiers of the at least one PLMN.
  • the PCI is determined based on the identifier of the first PLMN, and may specifically be: the cell corresponding to the PCI is associated with the first device.
  • the transceiver unit 1201 when receiving the first request message from the first device, may be specifically configured to: receive the first request message from the first device through a first-type network interface the first request message, the first type of network interface is the interface for the communication between the network device and the distribution unit DU; the first request message also includes indication information, and the indication information is used to indicate the first
  • the device performs sideline communication with the remote terminal device, and communicates with the network device through a network interface; or, receives the first request message from the first device through a second-type network interface, the first request message
  • a second-type network interface is used for the first device to communicate with the network device, and the second-type network interface is different from the first-type network interface.
  • the transceiver unit 1201 may also be configured to: send a second request message to the first DU, where the second request message is used to indicate the identifier of the first device and the first request message. An identity of a PLMN; and receiving a second response message from the first DU, where the second response message is used to indicate information of a first cell, where the first cell corresponds to the identity of the first PLMN relationship; the information of the first cell includes the PCI.
  • the processing unit 1202 may be further configured to determine the first DU according to the identifier of the first PLMN.
  • the processing unit 1202 is further configured to determine the first DU and the first cell according to the identifier of the first PLMN, and the first cell belongs to the first DU;
  • the transceiver unit 1201 may also be configured to: send a third request message to the first DU, where the third request message is used to indicate the identity of the first device and the information of the first cell, the first The information of the cell includes the PCI and/or the cell identity; and, receiving a third response message from the first DU, the third response message including confirmation information.
  • the third request message may also be used to indicate the identity of the first PLMN.
  • the transceiver unit 1201 may be further configured to: send first information to the first device, where the first information includes an identifier of a data radio bearer DRB and a service corresponding to the DRB quality; receiving second information from the first device, the second information including a sideline configuration for the remote terminal device to communicate with the first device through a proximity service 5 interface communication; sending a first configuration message to the remote terminal device through the first device, where the first configuration message includes the DRB configuration, the sideline configuration and the C-RNTI.
  • the sideline configuration may include sideline RLC configuration, medium access control configuration, and physical layer configuration; the RLC configuration includes an identifier of the DRB; wherein the RLC bearer corresponds to the DRB.
  • the DRB configuration may include a PDCP configuration
  • the PDCP configuration may include an identifier of the DRB.
  • the transceiver unit 1201 may be further configured to: send a fourth request message to the first distribution unit DU, where the fourth request message is used to request the first DU to allocate a C-RNTI ; and receiving a fourth response message from the first DU, where the fourth response message is used to indicate the C-RNTI.
  • the fourth request message may include indication information of the first device; the C-RNTI is allocated by the first DU for a cell corresponding to the first device, and the first device corresponds to The cell of is determined by the first DU according to the indication information of the first device.
  • processing unit 1202 may also be configured to generate the DRB configuration.
  • the processing unit 1202 may also be configured to determine a sideline configuration, where the sideline configuration is used for the remote terminal device and the first device to communicate via a proximity service interface
  • the transceiver unit 1201 may also be configured to: send the sideline configuration to the first device through a first network interface message, where the first network interface message corresponds to the first device; or, send the sideline configuration to the first device.
  • the first device sends a first message, where the first message includes the sideline configuration and information identifying the first device.
  • the first response message may also be used to indicate third information, where the third information includes at least one of the following: a tracking code, a radio access network notification area code, or a cell identifier; wherein the tracking code and the radio access network notification area code corresponds to the PCI, and the cell identifier is used to identify a cell in the first PLMN.
  • the third information includes at least one of the following: a tracking code, a radio access network notification area code, or a cell identifier; wherein the tracking code and the radio access network notification area code corresponds to the PCI, and the cell identifier is used to identify a cell in the first PLMN.
  • the communication apparatus 1200 when configured to implement the function of the first device in any of the embodiments described in FIG. 4 and FIG. 7 to FIG. 10 , it may specifically include:
  • the transceiver unit 1201 is configured to send a first request message to a network device and receive a first response message from the network device; the processing unit 1202 is configured to control the transceiver unit 1201 to perform the above operations;
  • a request message is used to indicate the identity of at least one PLMN of the first device; the first device performs sideline communication with the remote terminal device, and communicates with the network device through the network interface;
  • the first response message includes PCI, and the The PCI is determined based on the identifier of the first PLMN, and the identifier of the first PLMN is one or more of the identifiers of the at least one PLMN.
  • the PCI is determined based on the identifier of the first PLMN, and may specifically be: the cell corresponding to the PCI is associated with the first device.
  • the transceiver unit 1201 may be specifically configured to: send the first request message to the network device through a first network type interface A request message, where the first type of network interface is an interface between the network device and the distribution unit DU; the first request message further includes indication information, where the indication information is used to instruct the first device to communicate with the distribution unit DU.
  • the remote terminal device performs sideline communication, and communicates with the network device through a network interface; or, sends the first request message to the network device through a second network type interface, and the second type network interface is used for The first device communicates with the network device, and the second type of network interface is different from the first type of network interface.
  • the transceiver unit 1201 may be further configured to send a second message through a proximity service communication 5 interface, where the second message includes the identifier of the first PLMN and the PCI.
  • the transceiver unit 1201 may be further configured to: receive first information from the network device, where the first information includes the DRB identifier and the quality of service corresponding to the DRB; sending second information, the second information including a sideline configuration, the sideline configuration for the remote terminal device to communicate with the first device through the proximity service communication 5 interface; and, receiving data from the network a first configuration message of the device, where the first configuration message includes the DRB configuration, the sideline configuration, and the cell radio network temporary identifier C-RNTI; and sending the first configuration message to the remote terminal device.
  • the processing unit 1202 may be further configured to determine the sideline configuration according to the identifier of the DRB and the quality of service corresponding to the DRB.
  • the sideline configuration may include sideline RLC configuration, MAC configuration, and physical layer configuration; the RLC configuration includes an identifier of the DRB; wherein the RLC bearer corresponds to the DRB.
  • the DRB configuration may include a PDCP configuration
  • the PDCP configuration may include an identifier of the DRB.
  • the DRB configuration may be generated by the CU.
  • the transceiver unit 1201 may also be configured to: receive a sideline configuration from the network device through a first network interface message, where the sideline configuration is used for the remote terminal device to communicate with the The first device communicates through the proximity service communication 5 interface; the first network interface message corresponds to the first device; or, receives a first message from the network device, the first message includes the side information to configure and identify the first device.
  • the first response message may also be used to indicate third information, where the third information includes at least one of the following: a tracking code, a radio access network notification area code, or a cell identifier; wherein the tracking code and the radio access network notification area code corresponds to the PCI, and the cell identifier is used to identify a cell in the first PLMN.
  • the third information includes at least one of the following: a tracking code, a radio access network notification area code, or a cell identifier; wherein the tracking code and the radio access network notification area code corresponds to the PCI, and the cell identifier is used to identify a cell in the first PLMN.
  • the second message may further include at least one of the following: a tracking code, a radio access network notification area code, or a cell identifier; wherein the tracking code and the radio access network notification area code are the same as the Corresponding to the PCI, the cell identifier is used to identify a cell in the first PLMN.
  • each functional unit in the embodiments 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 above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium.
  • the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) 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 .
  • the communication apparatus 1300 may include a communication interface 1301 and a processor 1302 .
  • the communication apparatus 1300 may further include a memory 1303 .
  • the memory 1303 may be disposed inside the communication device 1300 or outside the communication device 1300 .
  • the processor 1302 can control the communication interface 1301 to receive and send messages, information or data, and the like.
  • the processor 1302 may be a central processing unit (CPU), a network processor (NP), or a combination of CPU and NP.
  • the processor 1302 may further include a hardware chip.
  • the above-mentioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
  • the above-mentioned PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general-purpose array logic (generic array logic, GAL) or any combination thereof.
  • the communication interface 1301, the processor 1302 and the memory 1303 are connected to each other.
  • the communication interface 1301, the processor 1302 and the memory 1303 are connected to each other through a bus 1304;
  • the bus 1304 may be a Peripheral Component Interconnect (PCI) bus or an extended industry standard Structure (Extended Industry Standard Architecture, EISA) bus, etc.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 13, but it does not mean that there is only one bus or one type of bus.
  • the memory 1303 is used to store programs and the like.
  • the program may include program code, the program code including computer operation instructions.
  • the memory 1303 may include RAM, and may also include non-volatile memory, such as one or more disk memories.
  • the processor 1302 executes the application program stored in the memory 1303 to realize the above-mentioned functions, thereby realizing the functions of the communication device 1300 .
  • the communication apparatus 1300 may be the first device in the foregoing embodiment; it may also be the network device in the foregoing embodiment.
  • the communication apparatus 1300 when the communication apparatus 1300 implements the function of the first device in any of the embodiments shown in FIG. 4 and FIG. 7 to FIG.
  • the processor 1302 may implement other transceiving operations performed by the first device in any of the embodiments shown in FIG. 4 and FIG. 7 to FIG. 10 . operate.
  • the communication apparatus 1300 when the communication apparatus 1300 implements the function of the network device (eg, CU) in any of the embodiments shown in FIG. 4 and FIG. 7 to FIG. 10 , the communication interface 1301 may implement the function of FIG. - the transceiver operations performed by the network device (or CU) in any of the embodiments shown in FIG. 10; the processor 1302 may implement the network device (or CU) in any of the embodiments shown in FIG. 4, FIG. 7-FIG. 10. CU) performs other operations other than sending and receiving operations.
  • the related descriptions reference may be made to the related descriptions in any of the embodiments shown in FIG. 4 and FIG. 7 to FIG. 10 , which are not described in detail here.
  • an embodiment of the present application provides a communication system, and the communication system may include a remote terminal device, a first device, a network device, and the like involved in the above embodiments.
  • Embodiments of the present application further provide a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the communication method provided by the foregoing method embodiments.
  • Embodiments of the present application further provide a computer program product, where the computer program product is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the communication method provided by the above method embodiments.
  • An embodiment of the present application further provides a chip, including a processor, which is coupled to a memory and configured to invoke a program in the memory so that the chip implements the communication method provided by the above method embodiments.
  • An embodiment of the present application further provides a chip, where the chip is coupled with a memory, and the chip is used to implement the communication method provided by the above method embodiments.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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

Abstract

L'invention concerne un procédé, un appareil et un système de communication qui sont utilisés pour mettre en œuvre la prise en charge d'un nœud de réseau qui communique avec un dispositif terminal au moyen d'une interface PC5 de façon à communiquer et à interagir avec un dispositif réseau, ce qui permet au nœud de réseau de fournir un service de relais de liaison latérale au dispositif terminal. Le procédé consiste à : recevoir un premier message de demande d'un premier dispositif, le premier message de demande servant à indiquer l'identifiant ou les identifiants d'au moins un PLMN du premier dispositif ; effectuer, au moyen du premier dispositif, une communication de liaison latérale avec un dispositif terminal d'extrémité éloignée, puis communiquer avec un dispositif réseau au moyen d'une interface réseau ; et envoyer un premier message de réponse au premier dispositif, le premier message de réponse servant à indiquer le PCI, le PCI étant déterminé d'après l'identifiant d'un premier PLMN, et l'identifiant du premier PLMN étant un ou plusieurs identifiants du ou des PLMN. De cette manière, le premier dispositif peut être associé à une cellule desservant le dispositif terminal d'extrémité éloignée de façon à ce que le premier dispositif effectue une communication de liaison latérale avec le dispositif terminal d'extrémité éloignée, et le premier dispositif communique avec le dispositif réseau au moyen de l'interface réseau.
PCT/CN2022/088238 2021-04-30 2022-04-21 Procédé, appareil et système de communication WO2022228275A1 (fr)

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WO2024148460A1 (fr) * 2023-01-09 2024-07-18 Oppo广东移动通信有限公司 Procédé de communication sans fil et dispositif de communication
CN118870565A (zh) * 2023-04-28 2024-10-29 中国移动通信有限公司研究院 终端关联方法、设备及可读存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016148399A1 (fr) * 2015-03-19 2016-09-22 엘지전자 주식회사 Procédé de communication pour un terminal dans un système de communication v2x et terminal
CN107925906A (zh) * 2015-09-24 2018-04-17 英特尔公司 用于车辆到万物服务的拥塞控制
US20190141586A1 (en) * 2017-11-07 2019-05-09 Telefonaktiebolaget Lm Ericsson (Publ) Nodes and method for determining target plmn id and target cell id
US10321434B1 (en) * 2015-12-17 2019-06-11 Sprint Communications Company L.P. Managing signaling resources using hidden public land mobile network signals
CN110547024A (zh) * 2017-05-10 2019-12-06 黑莓有限公司 在多网络环境中对直接传输的资源配置和调度
US20200296696A1 (en) * 2019-03-13 2020-09-17 Mariana Goldhamer Rsu integration in cellular networks

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016148399A1 (fr) * 2015-03-19 2016-09-22 엘지전자 주식회사 Procédé de communication pour un terminal dans un système de communication v2x et terminal
CN107925906A (zh) * 2015-09-24 2018-04-17 英特尔公司 用于车辆到万物服务的拥塞控制
US10321434B1 (en) * 2015-12-17 2019-06-11 Sprint Communications Company L.P. Managing signaling resources using hidden public land mobile network signals
CN110547024A (zh) * 2017-05-10 2019-12-06 黑莓有限公司 在多网络环境中对直接传输的资源配置和调度
US20190141586A1 (en) * 2017-11-07 2019-05-09 Telefonaktiebolaget Lm Ericsson (Publ) Nodes and method for determining target plmn id and target cell id
US20200296696A1 (en) * 2019-03-13 2020-09-17 Mariana Goldhamer Rsu integration in cellular networks

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