WO2023020046A1 - Procédé de communication et appareil de communication - Google Patents

Procédé de communication et appareil de communication Download PDF

Info

Publication number
WO2023020046A1
WO2023020046A1 PCT/CN2022/093026 CN2022093026W WO2023020046A1 WO 2023020046 A1 WO2023020046 A1 WO 2023020046A1 CN 2022093026 W CN2022093026 W CN 2022093026W WO 2023020046 A1 WO2023020046 A1 WO 2023020046A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
address information
interface
data packet
information
Prior art date
Application number
PCT/CN2022/093026
Other languages
English (en)
Chinese (zh)
Inventor
邢玮俊
丁辉
吴问付
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 WO2023020046A1 publication Critical patent/WO2023020046A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update

Definitions

  • the present application relates to the technical field of wireless communication, and in particular, to a communication method and a communication device.
  • the terminal can communicate with the terminal through the relay node.
  • the first terminal sends a data packet to the second terminal through the relay node.
  • the data packet carries the address information of the second terminal.
  • the relay node After receiving the data packet, the relay node , sending the data packet to the second terminal according to the first address information of the second terminal carried in the data packet.
  • the relay node will discard the data packet and notify the first terminal to resend the data packet.
  • the first terminal may resend a data packet to the relay node, where the data packet carries second address information of the second terminal, where the second address information is different from the foregoing first address information.
  • the relay node After receiving the resent data packet, the relay node sends the data packet to the second terminal if it determines that the second address information is available.
  • the relay node when the address information of the second terminal in the data packet is not available, the relay node will discard the data packet and ask the first terminal to resend the data packet, resulting in low sending efficiency of the data packet. Moreover, it is also required that the first terminal needs to know multiple pieces of address information of the second terminal, which increases the overhead of the first terminal.
  • the present application provides a communication method and a communication device, which are used to improve the transmission efficiency of data packets and reduce the overhead of a data packet sender.
  • the embodiment of the present application provides a communication method, and the method may be executed by a relay node or a module (such as a chip) used for the relay node.
  • the relay node receives a first data packet from the first terminal, the first data packet includes first address information of the second terminal, and the first address information corresponds to the second terminal the first interface of the second terminal; when the first interface is unavailable, the relay node obtains the second address information of the second terminal, the second address information corresponds to the second interface of the second terminal, and the second interface is available;
  • the second terminal sends a second data packet, the second data packet includes the second address information, and the second data packet is obtained according to the first data packet.
  • the relay node after the relay node receives the first data packet from the first terminal that needs to be sent to the second terminal, if it finds that the first address information of the second terminal in the first data packet corresponds to the first If the interface is unavailable, the relay node can reacquire the available second interface of the second terminal, then obtain the second data packet according to the first data packet and the second address information corresponding to the second interface, and send the second data packet to the second terminal Two packets.
  • the relay node when the relay node finds that the first address information of the second terminal in the first data packet is unavailable, the relay node will not discard the first data packet, and does not require the first terminal to resend the data packet, so it can The transmission efficiency of the data packet is improved, and the first terminal is not required to obtain multiple address information of the second terminal, thereby reducing the overhead of the first terminal.
  • the relay node obtains the second address from the information of the multiple available addresses according to the information of the multiple available addresses of the second terminal and the priorities respectively corresponding to the multiple available addresses information.
  • the most suitable address information can be reselected in combination with the priorities corresponding to the available addresses, which can improve the sending efficiency of data packets.
  • the second interface is a Uu interface
  • the second address information is the address information of the session of the second terminal
  • the relay node receives the first message from the second terminal, and the first The message includes the second address information and the second interface.
  • the second terminal reports the address information and the interface corresponding to the address information to the relay node, so that the relay node can accurately record the address information of the second terminal and the interface corresponding to the address information.
  • the first message further includes one or more of the following information: identification information of the personal Internet of Things (personal IoT network, PIN) corresponding to the second address information, the second address The identification information of the service corresponding to the information, the identification information of the application corresponding to the second address information, or the user identification of the application layer corresponding to the second address information.
  • identification information of the personal Internet of Things personal IoT network, PIN
  • PIN personal IoT network
  • the first message is sent through a PC5 interface of the second terminal or a non-third generation partnership project (3rd generation partnership project, 3GPP) interface.
  • the relay node sends a request message to the first network element, the request message includes the identification information of the second terminal, and the request message is used to obtain the address information of the second terminal, and the second terminal
  • a network element is an application function network element or a core network element; a response message from the first network element is received, and the response message includes the second address information and the second interface.
  • the relay node can obtain the address information of the second terminal and the interface corresponding to the address information from the core network element or the application function network element, so that the relay node can accurately record the address information of the second terminal and the interface corresponding to the address information. interface.
  • the relay node sends a request message to the first network element, the request message includes identification information of the PIN to which the second terminal belongs, and the request message is used to obtain the address of the terminal in the PIN information, the first network element is an application function network element or a core network element; a response message from the first network element is received, and the response message includes the identification information of the second terminal, the second address information, and the second terminal Two interfaces.
  • the relay node can obtain the address information of the second terminal and the interface corresponding to the address information from the core network element or the application function network element, so that the relay node can accurately record the address information of the second terminal and the interface corresponding to the address information. interface.
  • the relay node when the first interface is updated to be available, the relay node records the state of the first interface as available; and receives a third data packet from the first terminal, the third data packet includes The first address information of the second terminal; sending the third data packet to the second terminal.
  • the first interface is a PC5 interface, a Bluetooth interface, a wireless fidelity (Wireless Fidelity, WiFi) interface or a Uu interface
  • the second interface is a PC5 interface, a Bluetooth interface, a WiFi interface or a Uu interface .
  • the embodiment of the present application provides a communication device, and the device may be a relay node, or may be a chip for the relay node.
  • the device has the function of realizing any realization method of the first aspect above. This function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the embodiment of the present application provides a communication device, including a processor and a memory; the memory is used to store computer instructions, and when the device is running, the processor executes the computer instructions stored in the memory, so that the device performs Any implementation method in the first aspect above.
  • an embodiment of the present application provides a communication device, including a unit or means (means) for performing each step of any implementation method in the first aspect.
  • an embodiment of the present application provides a communication device, including a processor and an interface circuit, the processor is configured to communicate with other devices through the interface circuit, and execute any implementation method in the first aspect above.
  • the processor includes one or more.
  • an embodiment of the present application provides a communication device, including a processor coupled to a memory, and the processor is configured to invoke a program stored in the memory to execute any implementation method in the first aspect above.
  • the memory may be located within the device or external to the device. And there may be one or more processors.
  • the embodiment of the present application also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium is run on a communication device, any implementation method in the above-mentioned first aspect is executed implement.
  • an embodiment of the present application further provides a computer program product, the computer program product includes a computer program or an instruction, and when the computer program or instruction is run by a communication device, any implementation method in the above first aspect is executed.
  • the embodiment of the present application further provides a chip system, including: a processor, configured to execute any implementation method in the first aspect above.
  • Figure 1(a) is a schematic diagram of a 5G network architecture based on a service architecture
  • Figure 1(b) is a schematic diagram of a 5G network architecture based on a point-to-point interface
  • FIG. 2 is a schematic diagram of a possible network architecture applicable to an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a communication method provided in an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a communication device provided in an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a communication device provided by an embodiment of the present application.
  • Figure 1(a) is a schematic diagram of a 5G network architecture based on a service-based architecture.
  • the fifth generation (the 5th generation, 5G) network architecture shown in Figure 1(a) may include a data network (data network, DN) and an operator network.
  • data network data network, DN
  • operator network operator network
  • the operator network may include one or more of the following network elements: authentication server function (Authentication Server Function, AUSF) network element (not shown in the figure), unified data management (unified data management, UDM) network element , unified database (Unified Data Repository, UDR), network storage function (Network Repository Function, NRF) network element (not shown in the figure), network exposure function (network exposure function, NEF) network element (not shown in the figure) , application function (application function, AF) network element, policy control function (policy control function, PCF) network element, AMF network element, session management function (session management function, SMF) network element, user plane function (user plane function, UPF) network elements, wireless access network (radio access network, RAN) equipment, etc.
  • authentication server function Authentication Server Function, AUSF
  • unified data management unified data management
  • UDR Unified Data Repository, UDR
  • NRF Network Repository Function
  • NEF Network Exposion Function
  • PCF policy control function
  • AMF application function
  • the wireless access network equipment can be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a transmission reception point (transmission reception point, TRP), and a next generation base station (next generation NodeB, gNB) in a 5G mobile communication system , a next-generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a wireless fidelity (Wireless Fidelity, WiFi) system, etc.; it can also be a module or unit that completes some functions of the base station, for example, It can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU).
  • the radio access network equipment may be a macro base station, a micro base station or an indoor station, or a relay node or a donor node.
  • the embodiment of the present application does not limit the specific technology and specific equipment form adopted by the radio access network equipment.
  • a base station is used as an example of a radio access network device for description.
  • the terminal communicating with the RAN may also be called terminal equipment, user equipment (user equipment, terminal), mobile station, mobile terminal, and so on.
  • Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things ( Internet of things, IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc.
  • Terminals can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, robots, robotic arms, smart home devices, etc.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal.
  • Base stations and terminals can be fixed or mobile. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and artificial satellites in the air. The embodiments of the present application do not limit the application scenarios of the base station and the terminal.
  • the AMF network element includes functions such as mobility management and access authentication/authorization. In addition, it is also responsible for transferring user policies between the terminal and the PCF.
  • the SMF network element includes functions such as session management execution, execution of PCF issued control policies, UPF selection, terminal Internet Protocol (internet protocol, IP) address assignment, etc.
  • the UPF network element as the interface UPF with the data network, includes functions such as user plane data forwarding, session/flow-based charging statistics, and bandwidth limitation.
  • UDM network element including the execution management of subscription data, user access authorization and other functions.
  • UDR including the access function of execution contract data, policy data, application data and other types of data.
  • NEF network elements are used to support the opening of capabilities and events.
  • the AF network element transmits the requirements from the application side to the network side, such as QoS requirements or user status event subscription.
  • the AF may be a third-party functional entity, or an application service deployed by an operator, such as an IP Multimedia Subsystem (IP Multimedia Subsystem, IMS) voice call service.
  • IP Multimedia Subsystem IP Multimedia Subsystem, IMS
  • the PCF network element includes policy control functions such as charging for sessions and service flow levels, QoS bandwidth guarantee, mobility management, and terminal policy decision-making.
  • the NRF network element can be used to provide a network element discovery function, and provide network element information corresponding to the network element type based on the request of other network elements.
  • NRF also provides network element management services, such as network element registration, update, de-registration, network element status subscription and push, etc.
  • the AUSF network element is responsible for authenticating users to determine whether users or devices are allowed to access the network.
  • DN is a network outside the operator's network.
  • the operator's network can access multiple DNs, and various services can be deployed on the DN, which can provide data and/or voice services for terminals.
  • DN is a private network of a smart factory.
  • the sensors installed in the workshop of the smart factory can be terminals, and the control server of the sensors is deployed in the DN, and the control server can provide services for the sensors.
  • the sensor can communicate with the control server, obtain instructions from the control server, and transmit the collected sensor data to the control server according to the instructions.
  • DN is a company's internal office network.
  • the mobile phone or computer of the company's employees can be a terminal, and the employee's mobile phone or computer can access information and data resources on the company's internal office network.
  • Npcf, Nufr, Nudm, Naf, Namf, and Nsmf are the service interfaces provided by the above-mentioned PCF, UDR, UDM, AF, AMF, and SMF, respectively, and are used to call corresponding service operations.
  • N1, N2, N3, N4, and N6 are interface serial numbers. For the meanings of these interface serial numbers, refer to the meanings defined in the 3GPP standard protocol, and there is no limitation here.
  • Figure 1(b) is a schematic diagram of a 5G network architecture based on a point-to-point interface.
  • the introduction of the functions of the network elements can refer to the introduction of the functions of the corresponding network elements in Figure 1(a), and will not be repeated here.
  • the main difference between Figure 1(b) and Figure 1(a) is that the interface between each control plane network element in Figure 1(a) is a service interface, and each control plane network element in Figure 1(b) The interface between them is a point-to-point interface.
  • N1 the interface between the AMF and the terminal, which can be used to transmit QoS control rules and the like to the terminal.
  • N2 the interface between the AMF and the RAN, which can be used to transfer radio bearer control information from the core network side to the RAN.
  • N3 the interface between the RAN and the UPF, mainly used to transfer the uplink and downlink user plane data between the RAN and the UPF.
  • N4 The interface between SMF and UPF, which can be used to transfer information between the control plane and the user plane, including controlling the distribution of forwarding rules, QoS control rules, traffic statistics rules, etc. Information reporting.
  • N5 the interface between the AF and the PCF, which can be used for sending application service requests and reporting network events.
  • N6 the interface between UPF and DN, used to transfer the uplink and downlink user data flow between UPF and DN.
  • N7 the interface between PCF and SMF, which can be used to deliver protocol data unit (protocol data unit, PDU) session granularity and service data flow granularity control policy.
  • protocol data unit protocol data unit
  • PDU protocol data unit
  • N8 The interface between AMF and UDM, which can be used for AMF to obtain subscription data and authentication data related to access and mobility management from UDM, and for AMF to register terminal current mobility management related information with UDM.
  • N9 a user plane interface between UPF and UPF, used to transmit uplink and downlink user data flows between UPFs.
  • N10 the interface between SMF and UDM, which can be used for SMF to obtain session management-related subscription data from UDM, and for SMF to register terminal current session-related information with UDM.
  • N11 the interface between SMF and AMF, which can be used to transfer PDU session tunnel information between RAN and UPF, transfer control messages sent to terminals, transfer radio resource control information sent to RAN, etc.
  • N15 the interface between the PCF and the AMF, which can be used to issue terminal policies and access control-related policies.
  • N35 the interface between UDM and UDR, which can be used for UDM to obtain user subscription data information from UDR.
  • N36 the interface between PCF and UDR, which can be used for PCF to obtain policy-related subscription data and application data-related information from UDR.
  • the above-mentioned network element or function may be a network element in a hardware device, or a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform).
  • a platform for example, a cloud platform.
  • the foregoing network element or function may be implemented by one device, or jointly implemented by multiple devices, or may be a functional module in one device, which is not specifically limited in this embodiment of the present application.
  • the cellular communication network introduces proximity-based services (Proximity-based services, ProSe) communication.
  • ProSe proximity-based services
  • terminals that are adjacent to each other can directly establish a communication link without forwarding the communication through the base station.
  • FIG. 2 it is a schematic diagram of a possible network architecture applicable to the embodiment of the present application.
  • the schematic diagram is illustrated by including two terminals (ie, the first terminal and the second terminal) as an example. In practice, it may also include three or More than three terminals.
  • the relay node can be connected to a cellular network (such as a 5G network) through an optical fiber or a Uu interface, and the relay node and a terminal (such as the first terminal and the second terminal in Figure 2) can establish a 3GPP connection (such as a PC5 connection) and/or Non-3GPP connections (such as Bluetooth connections, WiFi connections), so as to provide greater network coverage for cellular networks.
  • a cellular network such as a 5G network
  • a terminal such as the first terminal and the second terminal in Figure 2
  • Non-3GPP connections such as Bluetooth connections, WiFi connections
  • the relay node may be a terminal, a routing device, or a gateway (gateway, GW), etc.
  • the routing device here may be, for example, a home router or an industrial router
  • the gateway here may be, for example, a home gateway or an industrial gateway.
  • the terminal and the relay node can be directly connected and communicated through the 3GPP interface (such as the PC5 interface) or the non-3GPP interface (such as the Bluetooth interface, the WiFi interface). It can also communicate indirectly with the terminal through the relay node.
  • the 3GPP interface such as the PC5 interface
  • the non-3GPP interface such as the Bluetooth interface, the WiFi interface
  • the relay node may provide two types of relay connection services for the terminal.
  • One is a terminal-to-terminal (UE-to-UE) relay connection service, that is, the relay node forwards information from one terminal to another terminal.
  • UE-to-UE terminal-to-terminal
  • the relay node receives the information from the first terminal The information is then forwarded to the second terminal.
  • the other is a terminal-to-network (UE-to-network) relay connection service, that is, the relay node forwards information from the terminal to the core network, or forwards information received from the core network to the terminal.
  • UE-to-UE terminal-to-network
  • a PIN can consist of a PIN terminal (PIN UE) and/or a PIN device (PIN Device).
  • PIN UE can be understood as a UE with a subscriber identity module (SIM) card inserted, or a UE with a contract in the core network, such as a mobile phone, a gateway, and the like.
  • PIN Device can be understood as a device connected to PIN UE (such as GW), such as a Bluetooth headset, a smart speaker, and no SIM card is inserted into the PIN Device.
  • the relay node can be understood as a PIN UE.
  • the first terminal, the second terminal and the relay node may constitute a PIN.
  • the PIN UE in the PIN can communicate with the base station through the Uu interface, or communicate with the base station through a non-3GPP interface through a relay node.
  • a PIN may be uniquely identified by a PIN identifier, or may also be uniquely identified by a group identifier.
  • FIG. 3 it is a schematic flowchart of a communication method provided by an embodiment of the present application. The method includes the following steps:
  • Step 301 a first terminal sends a first data packet to a relay node.
  • the relay node receives the first data packet.
  • the first data packet includes first address information of the second terminal, and the first address information corresponds to the first interface of the second terminal.
  • the first data packet may also include identification information of the second terminal.
  • Step 302 when the first interface is unavailable, the relay node obtains the second address information of the second terminal.
  • the second address information corresponds to the second interface of the second terminal, and the second interface is available.
  • the first interface is unavailable, indicating that the relay node cannot send data packets to the second terminal through the first interface of the second terminal, that is, the link between the relay node and the first interface of the second terminal is unreachable.
  • Step 303 the relay node sends the second data packet to the second terminal.
  • the second terminal receives the second data packet.
  • the second data packet includes second address information of the second terminal.
  • the second data packet is obtained according to the first data packet.
  • the first address information of the second terminal in the first data packet may be replaced with the second address information of the second terminal to obtain the second data packet;
  • the second address information of the second terminal is added to the header of the first data packet to obtain the second data packet.
  • the relay node after the relay node receives the first data packet from the first terminal that needs to be sent to the second terminal, if it finds that the first address information of the second terminal in the first data packet corresponds to the first If the interface is unavailable, the relay node can reacquire the available second interface of the second terminal, then obtain the second data packet according to the first data packet and the second address information corresponding to the second interface, and send the second data packet to the second terminal Two packets.
  • the relay node when the relay node finds that the first address information of the second terminal in the first data packet is unavailable, the relay node will not discard the first data packet, and does not require the first terminal to resend the data packet, so it can The transmission efficiency of the data packet is improved, and the first terminal is not required to obtain multiple address information of the second terminal, thereby reducing the overhead of the first terminal.
  • the first interface is a PC5 interface, a Bluetooth interface, a WiFi interface or a Uu interface
  • the second interface is a PC5 interface, a Bluetooth interface, a WiFi interface or a Uu interface
  • the first interface is different from the second interface.
  • the information shown in Table 1 is stored in the relay node.
  • the identification information of terminal 1 is called terminal identification #1
  • the identification information of terminal 2 is called terminal identification #2
  • the identification information of terminal 3 is called terminal identification #2.
  • the identification information of is called terminal identification #3.
  • the terminal 1 has 4 interfaces
  • the terminal 2 has 3 interfaces
  • the terminal 3 has 3 interfaces, and each interface corresponds to an address.
  • the identification information of terminal 1 is called terminal identification #1
  • the identification information of terminal 4 is called terminal identification #4.
  • terminal 1 has 4 interfaces
  • terminal 4 has 3 interfaces
  • each interface corresponds to an address.
  • a terminal can belong to only one PIN, such as terminal 2, terminal 3 or terminal 4 above, or a terminal can also belong to two or more PINs, such as terminal 1 above.
  • the addresses of the terminal in different PINs can be the same or different, for example, the address #1_1 in the above table 1 is the same as the address #4_1, and the address #1_2 is the same as the address # 4_2 is different.
  • the first terminal in the above step 301 is terminal 1 in PIN#1
  • the second terminal is terminal 2 in PIN#1
  • the second terminal's number carried in the first data packet is One address information
  • address #2_1 when the relay node determines that the PC5 interface of the second terminal is unavailable, it indicates that address #2_1 is unreachable, so the relay node reselects the address information of the second terminal, for example, when the second terminal's Bluetooth If the interface is available, the address #2_2 can be selected, or when the WiFi interface of the second terminal is available, the address #2_3 can be selected.
  • the relay node can select one address information from the multiple available address information of the second terminal, and the selected address information It is the second address information described above.
  • “multiple” here refers to "two or more”.
  • the relay interface may arbitrarily select one of the information of multiple available addresses of the second terminal as the second address information.
  • the relay node obtains the second address information from the information of the multiple available addresses of the second terminal according to the information of the multiple available addresses of the second terminal and the priorities corresponding to the multiple available addresses.
  • the second address information of the second terminal is the information of the highest priority available address, or the information of any one of the highest priority M available addresses, where M is an integer greater than 1.
  • the address information corresponding to the Uu interface of a terminal is the address information of the session of the terminal, and the session may be a protocol data unit (protocol data unit, PDU) session.
  • PDU protocol data unit
  • the second terminal shown in Figure 2 the second terminal is a PIN UE, and the second terminal interacts with the core network to establish a PDU session, and the address information of the session corresponds to the Uu interface.
  • the terminal may send the address information of the session and the interface corresponding to the session to the relay node.
  • the second interface in the above step 302 is a Uu interface
  • the second address information is the address information of the session of the second terminal
  • the second terminal establishes the session, and then sends the second terminal to the relay node A message, where the first message includes the second address information and the second interface. That is, after the terminal establishes a session, it can actively report the address information of the session and the interface corresponding to the address information of the session to the relay node, so that the relay node can record the address information of the session and the interface corresponding to the address information of the session .
  • the first message also includes one or more of the following information: the identification information of the PIN corresponding to the second address information (which may be a group identification or PIN identification), the service corresponding to the second address information ( service), the identification information of the application (application) corresponding to the second address information, or the user identification of the application layer corresponding to the second address information.
  • the above first message may be sent by the second terminal to the relay node through a PC5 interface or a non-3GPP interface (such as a Bluetooth interface, a WiFi interface, etc.) of the second terminal.
  • a PC5 interface or a non-3GPP interface (such as a Bluetooth interface, a WiFi interface, etc.) of the second terminal.
  • the relay node can also actively obtain the address information and interface of each terminal from the first network element, where the first network element can be an AF or a core network element (such as SMF, PCF, etc.).
  • the relay node may send a request message to the first network element, and the request message includes the first The identification information of the second terminal, the request message is used to acquire the address information of the second terminal, and the relay node receives the response message from the first network element, and the response message includes the second address information and the second interface.
  • the relay node sends a request message to the first network element, the request message includes the identification information of the PIN to which the second terminal belongs, and the request message is used to obtain the address information of the terminal in the PIN, and then the relay node receives the A response message from the first network element, the response message includes the identification information of the second terminal, the second address information, and the second interface, and the response message also includes the identification information of other terminals in the PIN and the address of the other terminal The interface corresponding to the information and the address information of the other terminal.
  • the state of the interface of each terminal recorded by the relay node can be dynamically updated.
  • the relay interface records the status of the first interface as available.
  • the latest state of the first interface may be actively reported by the second terminal to the relay node, or may be subscribed by the relay node to the second terminal in advance.
  • the relay node receives a third data packet from the first terminal, the third data packet includes the first address information of the second terminal, the relay node The third data packet may be sent to the second terminal.
  • FIG. 4 it is a schematic flowchart of a communication method provided by an embodiment of the present application. The method includes the following steps:
  • Step 401 the first terminal, the second terminal and the relay node register to the network.
  • the relay node can be a terminal or GW.
  • the first terminal sends capability information to the AMF through a registration message or a service request message, and the capability information indicates that the first terminal can be used as a PIN UE.
  • the registration message or the service request message further includes identification information of the PIN to which the first terminal belongs.
  • the second terminal In the process of registering to the network, the second terminal sends capability information to the AMF through a registration message or a service request message, and the capability information indicates that the second terminal can be used as a PIN UE.
  • the registration message or the service request message further includes identification information of the PIN to which the second terminal belongs.
  • the relay node In the process of registering to the network, the relay node sends capability information to the AMF through a registration message or a service request message, and the capability information indicates that the relay node can be used as a relay node, or indicates that the relay node can be used as a GW, or Indicates that the relay node has relay capability.
  • the registration message or service request message sent by the relay node also carries indication information, which indicates that the relay node can support UE-to-UE and UE-to-Network relay capabilities at the same time, or indicates that the relay node The node supports dual relays. Exemplarily, a specific example of the indication information is given below.
  • a field capability for UE-to-UE and UE-to-Network Relay is included in the registration message or service request message.
  • the value of this field is set to 1, it means that the registration message or service request message carries the above indication information .
  • two fields are included in the registration message or service request message: capability for UE-to-UE Relay and capability for UE-to-Network Relay. When the values of these two fields are both set to 1, it means that the registration message Or the service request message carries the above indication information.
  • a field capability for PIN GW is included in the registration message or service request message. When the value of this field is set to 1, it means that the registration message or service request message carries the above indication information.
  • the registration message or the service request message also includes identification information of the PIN to which the relay node belongs.
  • step 402 the AMF confirms the dual relay capability of the relay node.
  • the AMF can confirm whether the relay node really has the dual relay capability.
  • the AMF may request the PCF for the authorization policy of the relay node, and the authorization policy includes indication information whether the relay node supports dual relay capabilities.
  • the PCF may also generate a relay service code (relay service code, RSC) according to the PIN supported by the relay node, and then send the RSC and the identification information of the PIN corresponding to the RSC to the AMF in the authorization policy.
  • RSC relay service code
  • the relay node supports PIN#1 and PIN#2, PCF generates RSC#1 according to PIN#1, generates RSC#2 according to PIN#2, and then carries the identification information of PIN#1 and PIN#1 in the authorization policy sent to AMF RSC#1, and carrying the identification information of PIN#2 and RSC#2.
  • the AMF may obtain the subscription information of the relay node from the UDM or UDR, and the subscription information includes indication information indicating whether the relay node supports dual relay capabilities.
  • the subscription information also includes identification information of PINs supported by the relay node and the RSC corresponding to each PIN.
  • the subscription information includes the identification information of PIN#1 and the identification information of PIN#2 supported by the relay node, and PIN#1 corresponds to RSC#1, and PIN#2 corresponds to RSC#2, then UDM or UDR can also Send the identification information of PIN#1 and RSC#1 to the AMF, and send the identification information of PIN#2 and RSC#2.
  • Step 403 the relay node establishes or modifies a PDU session.
  • the PDU session established by the relay node is used to provide UE-to-Network relay service for the PIN UE or PIN Device connected to the relay node.
  • description will be made by taking the relay node providing UE-to-Network relay service for the first terminal as an example.
  • Step 404 the second terminal establishes or modifies a PDU session.
  • the first terminal can connect to the application server by multiplexing the PDU session of the relay node, and the second terminal can use the PDU session established by itself to also connect to the application server, so that the first terminal and the second terminal Communication can be via the application server.
  • the relay node and the second terminal can be in the same group (such as a 5G virtual local area network group), then the relay node and the second terminal can communicate directly through a UPF through their respective PDU sessions, without Need to go through the application server.
  • the first terminal directly communicates with the second terminal through UPF forwarding after multiplexing the PDU session of the relay node.
  • the relay node and the second terminal when they establish their respective PDU sessions, they will obtain the address information of the PDU session from the network side, such as an IP address or a layer 2 address.
  • the address information of the PDU session obtained by the second terminal from the SMF is referred to as the first link address information of the second terminal, and the first link is the PDU session of the second terminal.
  • Step 405 the first terminal and the second terminal respectively establish connections with the relay node.
  • the relay node can broadcast and send one or more RSCs.
  • the first terminal receives the RSC and can parse the RSC, the first terminal can establish a connection with the relay node, such as establishing a PC5 connection, Bluetooth connection or WiFi connection.
  • the second terminal may also establish a connection with the relay node in the same manner.
  • the identification information of one or more RSCs and the PIN corresponding to the RSCs may also be obtained from the AMF.
  • the first terminal can broadcast to the RSC corresponding to the PIN.
  • the relay node can communicate with the first terminal. establish a connection between them, such as establishing a PC5 connection, a Bluetooth connection, or a WiFi connection.
  • the second terminal may also establish a connection with the relay node in the same manner.
  • the relay node may acquire the identification information of the first terminal, the address information of the first terminal, and the interface corresponding to the address information of the first terminal during or after establishing the connection. Likewise, the relay node may acquire the identification information of the second terminal, the address information of the second terminal, and the interface corresponding to the address information of the second terminal during or after establishing the connection.
  • the identification information of the first terminal or the identification information of the second terminal may be a device identification, a layer 2 address, an application layer identification information, a subscription permanent identifier (SUPI), a user concealed identification (Subscription Concealed Identifier, SUCI) Or generic external subscription identifier (generic public subscription identifier, GPSI), etc.
  • the address information of the first terminal or the address information of the second terminal may be IP address information (such as IP address, port number, etc.) or layer 2 address (such as media access control (medium access control, MAC) address).
  • the relay node When the relay node is directly connected to the first terminal through a PC5 interface or a non-3GPP interface (such as a Bluetooth interface, a WiFi interface), it can obtain a direct link to the first terminal (that is, a link directly connected through a PC5 or a non-3GPP interface). ) address information.
  • a PC5 interface or a non-3GPP interface such as a Bluetooth interface, a WiFi interface
  • the relay node when the relay node is directly connected to the second terminal through a PC5 interface or a non-3GPP interface (such as a Bluetooth interface, a WiFi interface), it can obtain a direct link to the second terminal (that is, a direct connection through a PC5 or a non-3GPP interface) link) address information.
  • a direct link to the second terminal that is, a direct connection through a PC5 or a non-3GPP interface
  • the address information of the direct link between the second terminal and the relay node is referred to as second link address information.
  • the second terminal may send the first link address information (that is, the address information of the PDU session) of the second terminal and the interface (that is, the Uu interface) corresponding to the first link address information through the second link to relay nodes.
  • the second terminal may send the first link address information and the interface corresponding to the first link address information to the relay node through a connection establishment request message, or After the second link is established, the first link address information and the interface corresponding to the first link address information are sent to the relay node.
  • the relay node may also send a request message to a core network element (such as AMF, SMF, PCF or UDM) to request to obtain the first link of the second terminal The address information and the interface corresponding to the first link address information, and then the network element of the core network sends the first link address information of the second terminal and the interface corresponding to the first link address information to the relay node.
  • a core network element such as AMF, SMF, PCF or UDM
  • One or more pieces of information in layer identification information (such as WeChat ID) are sent to the relay node.
  • multiple links can be established between the second terminal and the relay node at the same time, for example, a Bluetooth connection, a WiFi connection, a PC5 connection, and a Uu air interface connection can be established at the same time.
  • the address information of the direct link (such as PC5 connection, Bluetooth connection, and WiFi connection) between the second terminal and the relay node is generated by the second terminal itself or configured by a third party, the second terminal also needs to add the direct The link address information and the interface corresponding to the direct link are sent to the relay node, so that the relay node can record the information of the available address of the second terminal and the interface corresponding to the information of each available address.
  • the relay node may also record the information of the available addresses of the first terminal and the interface corresponding to the information of each available address. The information recorded by the relay node is shown in Table 1 above.
  • the first terminal and/or the second terminal may also send the priority of each link to the relay node.
  • the information recorded by the relay node is shown in Table 2 above.
  • Step 406 the relay node records the information of the terminal connected to the relay node.
  • the terminal information recorded by the relay node includes the address information of the terminal and the interface corresponding to the address information, and optionally also includes the information of the PIN to which the terminal belongs and the priority of the address of the terminal.
  • the terminal information recorded by the relay node is shown in Table 1 or Table 2 above.
  • the above-mentioned first terminal and second terminal may be any terminal in Table 1 or Table 2 above.
  • the relay node when the relay node maintains terminal information, it can choose to expose only part of the information of a certain terminal to other terminals, or it can expose all the information of a certain terminal to other terminals.
  • the relay node can send the PC5 interface of terminal 1 and the address #1_1 corresponding to the PC5 interface to other terminals in PIN#1, and can also send all the interfaces of terminal 1 and the address information corresponding to each interface To other terminals in PIN#1.
  • the relay node only records the available interfaces of each terminal and the address information corresponding to the available interfaces, and the recorded information can be dynamically updated. For example, when a certain interface of a certain terminal is updated from available to unavailable, the relay node deletes the interface and the address information corresponding to the interface. For another example, when an interface of a certain terminal is updated from unavailable to available, the relay node may re-record the interface and the address information corresponding to the interface.
  • the relay node may also record all interfaces of each terminal and address information corresponding to each interface, and also record the state of each interface (that is, available or unavailable). Then, as the state of each interface changes, the relay node updates the recorded state of each interface as available or unavailable.
  • Step 407 the first terminal sends the first data packet to the relay node.
  • the relay node receives the first data packet.
  • the first data packet includes identification information of the second terminal and first address information of the second terminal.
  • Step 408 the relay node selects the second address information of the second terminal.
  • the relay node reselects the information of an address from the information of multiple available addresses of the second terminal , as the second address information.
  • the relay node may reselect the information of an address with a higher priority from the information of multiple available addresses of the second terminal, as Second address information.
  • the first address information may be the above-mentioned first link address information
  • the second address information is the above-mentioned second link address information
  • the first address information may be the above-mentioned second link address information
  • the second address information is the above-mentioned first link address information.
  • Step 409 the relay node sends the second data packet to the second terminal.
  • the second terminal receives the second data packet.
  • the second data packet includes second address information of the second terminal.
  • the second data packet is obtained according to the first data packet.
  • the first address information of the second terminal in the first data packet may be replaced with the second address information of the second terminal to obtain the second data packet;
  • the second address information of the second terminal is added to the header of the first data packet to obtain the second data packet.
  • the relay node it is possible to establish the link connection between each terminal and the relay node, and to record the address information of each terminal and the interface corresponding to the address information in the relay node, so that the subsequent relay node receives the information from the first
  • the relay node After receiving the first data packet from the terminal, when the relay node finds that the first address information of the second terminal in the first data packet is not available, the relay node will not discard the first data packet, and does not require the first terminal to resend the data Therefore, the sending efficiency of data packets can be improved, and the first terminal is not required to know multiple address information of the second terminal, which reduces the overhead of the first terminal.
  • the above embodiments are also applicable to the scenario where the first terminal is a PIN Device and the second terminal is a PIN UE. Nodes send or receive data or signaling.
  • FIG. 5 it is a schematic flowchart of a communication method provided by an embodiment of the present application. The method includes the following steps:
  • step 501 the AF acquires terminal information through interaction with the terminal.
  • the information of the terminal includes the address information of the terminal and the interface corresponding to the address information, and optionally also includes the priority of each address.
  • the interface here may be a PC5 interface, a Uu interface, a Bluetooth interface or a WiFi interface.
  • the address information corresponding to the Uu interface is the address allocated by the SMF for the PDU session of the terminal.
  • the AF can acquire the address information of the first terminal and the interface corresponding to the address information through interaction with the first terminal, and optionally also includes the priority of each address.
  • the AF may acquire the address information of the second terminal and the interface corresponding to the address information through interaction with the second terminal, and may optionally include the priority of each address.
  • Step 502 the relay node obtains terminal information from the AF.
  • the relay node can pre-subscribe to the AF the information of a newly added terminal in a certain PIN, so when a new terminal joins in the PIN, the AF can obtain the information of the newly added terminal, and then send the terminal The information is sent to the relay node.
  • the relay node can request the information of a newly added terminal in a certain PIN from the AF at intervals of a set time period.
  • the node returns the information of the newly joined terminal.
  • the relay node After a certain terminal establishes a connection with the relay node, the relay node requests the AF for the terminal's information, and the AF returns the terminal's information to the relay node.
  • Step 503 to step 506 are the same as above step 406 to step 409.
  • the main difference between the embodiment in FIG. 5 and the embodiment in FIG. 4 is: in the embodiment in FIG. 5 , the relay node obtains the information of each terminal in a certain PIN from AF, while In , the relay node obtains terminal information from each terminal.
  • the relay node includes hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software with reference to the units and method steps of the examples described in the embodiments disclosed in the present application. Whether a certain function is executed by hardware or computer software drives the hardware depends on the specific application scenario and design constraints of the technical solution.
  • FIG. 6 and FIG. 7 are schematic structural diagrams of possible communication devices provided by the embodiments of the present application. These communication apparatuses can be used to implement the function of the relay node in the above method embodiments, and therefore can also achieve the beneficial effects of the above method embodiments.
  • the communication device may be a relay node, or a module (such as a chip) applied to a relay node.
  • a communication device 600 includes a processing unit 610 and a transceiver unit 620 .
  • the communication device 600 is configured to implement the function of the relay node in the above method embodiments shown in FIG. 3 to FIG. 5 .
  • the communication device 600 When the communication device 600 is used to implement the function of the relay node in the method embodiments shown in FIGS. includes the first address information of the second terminal, the first address information corresponds to the first interface of the second terminal; the processing unit 610 is configured to acquire the second address of the second terminal when the first interface is unavailable information, the second address information corresponds to the second interface of the second terminal, and the second interface is available;
  • the transceiving unit 620 is further configured to send a second data packet to the second terminal, the second data packet includes the second address information, and the second data packet is based on the first packets are obtained.
  • the processing unit 610 is specifically configured to obtain information from the information of the multiple available addresses of the second terminal according to the information of the multiple available addresses of the second terminal and the priorities respectively corresponding to the multiple available addresses.
  • the second address information is specifically configured to obtain information from the information of the multiple available addresses of the second terminal according to the information of the multiple available addresses of the second terminal and the priorities respectively corresponding to the multiple available addresses.
  • the second interface is a Uu interface
  • the second address information is the address information of the session of the second terminal
  • the transceiver unit 620 is also configured to receive the first message from the second terminal , the first message includes the second address information and the second interface.
  • the first message further includes one or more of the following information: identification information of the personal Internet of Things PIN corresponding to the second address information, identification information of the service corresponding to the second address information .
  • identification information of the application corresponding to the second address information or the user identification of the application layer corresponding to the second address information is not limited to the following information.
  • the first message is sent through a PC5 interface of the second terminal or a non-3rd Generation Partnership Project 3GPP interface.
  • the transceiver unit 620 is further configured to send a request message to the first network element, the request message includes the identification information of the second terminal, and the request message is used to obtain the address of the second terminal Information, the first network element is an application function network element or a core network element; receiving a response message from the first network element, where the response message includes the second address information and the second interface.
  • the transceiving unit 620 is further configured to send a request message to the first network element, the request message includes the identification information of the PIN to which the second terminal belongs, and the request message is used to obtain the PIN information in the PIN.
  • the address information of the terminal, the first network element is an application function network element or a core network element; receiving a response message from the first network element, the response message includes the identification information of the second terminal, the second address information and the second interface.
  • the processing unit 610 is also configured to record the status of the first interface as available when the first interface is updated to be available; the transceiving unit 620 is also configured to receive a message from the first terminal a third data packet, where the third data packet includes the first address information of the second terminal; and sending the third data packet to the second terminal.
  • processing unit 610 and the transceiver unit 620 can be directly obtained by referring to the relevant descriptions in the method embodiments shown in FIG. 3 to FIG. 5 , and will not be repeated here.
  • a communication device 700 includes a processor 710 and an interface circuit 720 .
  • the processor 710 and the interface circuit 720 are coupled to each other.
  • the interface circuit 720 may be a transceiver or an input-output interface.
  • the communication device 700 may further include a memory 730 for storing instructions executed by the processor 710, or storing input data required by the processor 710 to execute the instructions, or storing data generated by the processor 710 after executing the instructions.
  • the processor 710 is used to implement the functions of the processing unit 610
  • the interface circuit 720 is used to implement the functions of the transceiver unit 620.
  • the processor in the embodiments of the present application can be a central processing unit (Central Processing Unit, CPU), and can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • a general-purpose processor can be a microprocessor, or any conventional processor.
  • the method steps in the embodiments of the present application may be implemented by means of hardware, or may be implemented by means of a processor executing software instructions.
  • Software instructions can be composed of corresponding software modules, and software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only Memory, registers, hard disk, removable hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be a component of the processor.
  • the processor and storage medium can be located in the ASIC.
  • the ASIC can be located in the base station or the terminal.
  • the processor and the storage medium may also exist in the base station or the terminal as discrete components.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises one or more computer programs or instructions. When the computer program or instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are executed in whole or in part.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, a base station, user equipment or other programmable devices.
  • the computer program or instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instructions may be downloaded from a website, computer, A server or data center transmits to another website site, computer, server or data center by wired or wireless means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrating one or more available media.
  • the available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disk; and it may also be a semiconductor medium, such as a solid state disk.
  • the computer readable storage medium may be a volatile or a nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.
  • “at least one” means one or more, and “multiple” means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the contextual objects are an “or” relationship; in the formulas of this application, the character “/” indicates that the contextual objects are a "division” Relationship.

Landscapes

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

Abstract

La présente demande concerne un procédé et un appareil de communication. Le procédé comprend les étapes suivantes : après qu'un nœud de relais reçoit un premier paquet de données, qui provient d'un premier terminal et qui doit être envoyé à un second terminal, s'il est constaté qu'une première interface correspondant à des premières informations d'adresse du second terminal dans le premier paquet de données n'est pas disponible, le nœud de relais est apte à ré-acquérir une seconde interface disponible pour le second terminal ; puis, obtient un second paquet de données selon le premier paquet de données et des secondes informations d'adresse correspondant à la seconde interface, et envoie le second paquet de données au second terminal. Dans le procédé, lorsqu'un nœud de relais constate que des premières informations d'adresse d'un second terminal dans un premier paquet de données ne sont pas disponibles, le nœud de relais peut ne pas supprimer le premier paquet de données, et il n'a pas non plus besoin d'un premier terminal pour retransmettre un paquet de données, de sorte que l'efficacité d'envoi du paquet de données puisse être améliorée ; de plus, le premier terminal n'est pas nécessaire pour apprendre une pluralité d'éléments d'informations d'adresse du second terminal, réduisant ainsi les surdébits du premier terminal.
PCT/CN2022/093026 2021-08-19 2022-05-16 Procédé de communication et appareil de communication WO2023020046A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110956935.7A CN115708385A (zh) 2021-08-19 2021-08-19 一种通信方法及通信装置
CN202110956935.7 2021-08-19

Publications (1)

Publication Number Publication Date
WO2023020046A1 true WO2023020046A1 (fr) 2023-02-23

Family

ID=85212699

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/093026 WO2023020046A1 (fr) 2021-08-19 2022-05-16 Procédé de communication et appareil de communication

Country Status (2)

Country Link
CN (1) CN115708385A (fr)
WO (1) WO2023020046A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104301857A (zh) * 2014-09-24 2015-01-21 广州三星通信技术研究有限公司 用于通信终端之间的无线通信的方法和设备
CN105245527A (zh) * 2015-10-20 2016-01-13 努比亚技术有限公司 信息传递装置和方法
US20160173441A1 (en) * 2014-12-10 2016-06-16 Electronics And Telecommunications Research Institute Method and apparatus for allocating ip address by direct communication terminal
CN108966162A (zh) * 2018-06-27 2018-12-07 努比亚技术有限公司 数据通信方法、通信处理设备、终端及可读存储介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104301857A (zh) * 2014-09-24 2015-01-21 广州三星通信技术研究有限公司 用于通信终端之间的无线通信的方法和设备
US20160173441A1 (en) * 2014-12-10 2016-06-16 Electronics And Telecommunications Research Institute Method and apparatus for allocating ip address by direct communication terminal
CN105245527A (zh) * 2015-10-20 2016-01-13 努比亚技术有限公司 信息传递装置和方法
CN108966162A (zh) * 2018-06-27 2018-12-07 努比亚技术有限公司 数据通信方法、通信处理设备、终端及可读存储介质

Also Published As

Publication number Publication date
CN115708385A (zh) 2023-02-21

Similar Documents

Publication Publication Date Title
US20220330129A1 (en) Route Configuration Method and Apparatus
WO2020164175A1 (fr) Procédé et appareil de gestion d'identificateur
WO2022048394A1 (fr) Procédé de connexion réseau, procédé de déconnexion réseau et appareil de communication
WO2022033558A1 (fr) Procédé de gestion de relais et appareil de communication
WO2022012468A1 (fr) Procédé et appareil de configuration de routage
WO2022017285A1 (fr) Procédé, appareil et système d'acheminement de paquets
WO2022033543A1 (fr) Procédé de communication de relais, et appareil de communication
WO2023124875A1 (fr) Procédé et appareil de communication
WO2022194262A1 (fr) Procédé et appareil de communication de sécurité
US20220182910A1 (en) Data Processing Method, Apparatus, And System
WO2021169309A1 (fr) Procédé, appareil et système de communication
WO2023020046A1 (fr) Procédé de communication et appareil de communication
CN116868603A (zh) 针对af会话的外部参数提供的新方法
WO2021042381A1 (fr) Procédé, appareil et système de communication
WO2023197737A1 (fr) Procédé d'envoi de message, procédé de gestion de pin, appareil de communication et système de communication
WO2024012376A1 (fr) Procédé de communication, appareil de communication et système de communication
WO2023179331A1 (fr) Procédé d'envoi de paquets de données, dispositif de communication et système de communication
WO2023143212A1 (fr) Procédé et appareil de communication
WO2023169225A1 (fr) Procédé de gestion de pin, appareil de communication et système de communication
WO2023207357A1 (fr) Procédé de communication et appareil de communication
WO2023051381A1 (fr) Procédé et appareil de détermination de serveur d'application
WO2023015973A1 (fr) Procédé et appareil de commande d'admission à une tranche de réseau
WO2023050828A1 (fr) Procédé et appareil de communication
WO2024032290A1 (fr) Procédé et appareil d'établissement de session, dispositif de réseau et support de stockage
WO2023061207A1 (fr) Procédé de communication, appareil de communication et système de communication

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: 22857363

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE