Transmission processing method, apparatus, device, and readable storage medium

Abstract

The application discloses a transmission processing method, device and equipment and a readable storage medium, and belongs to the technical field of communication. The method comprises the following steps: a radio access network node performs a first operation, the first operation comprises at least one of the following: receiving first information from a first network element, the first information comprising a tunnel identifier allocated by the first network element or a second network element; receiving second information from a second network element, the second information comprising a tunnel identifier allocated by the second network element; wherein the tunnel identifier is used for determining a first tunnel, the first tunnel is used for data transmission of a first service between a terminal and a network, the first network element provides a control function related to the first service for the terminal, and the second network element provides at least one function of mobile management or access management for the terminal.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and specifically relates to a transmission processing method, apparatus, device and readable storage medium. Background Technology

[0002] In 5G communication systems, terminals can communicate with various network functions (NFs) on the network side via Non-Access Stratum (NAS). However, when a terminal communicates with NFs other than the Access and Mobility Management Function (AMF) via NAS, it must pass through the AMF for forwarding. Due to network deployment issues, AMF forwarding of NAS can result in path detours. For example, if a terminal and the Session Management Function (SMF) are both located in an industrial park, while the AMF is in the operator's data center, NAS communication between the terminal and the SMF requires routing from the industrial park to the operator's data center and back to the industrial park, resulting in long NAS paths, high latency, and impacting communication performance. In 6G communication systems, a distributed NAS approach was proposed, allowing terminals to communicate with any NF without AMF forwarding, thus resolving the path detours caused by AMF forwarding. In implementing a distributed NAS network architecture in 6G networks, establishing data tunnels becomes a crucial problem to solve. Summary of the Invention

[0003] This application provides a transmission processing method, apparatus, device, and readable storage medium to solve the problem of how to trigger the establishment of a data tunnel in a distributed non-access stratum architecture.

[0004] Firstly, a transmission processing method is provided, including:

[0005] The wireless access network node performs a first operation, which includes at least one of the following:

[0006] Receive first information from the first network element, the first information including a tunnel identifier allocated by the first network element or the second network element;

[0007] Receive second information from the second network element, the second information including the tunnel identifier allocated by the second network element;

[0008] The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0009] Secondly, a transmission processing method is provided, including:

[0010] The first network element performs a second operation, which includes at least one of the following:

[0011] Send first information to the wireless access network node, the first information including a tunnel identifier assigned by the first network element or the second network element;

[0012] Send a first message to the second network element, the first message including fifth information, the fifth information being used to request the second network element to allocate a tunnel identifier, and send the tunnel identifier to the radio access network node;

[0013] The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0014] Thirdly, a transmission processing method is provided, including:

[0015] The second network element performs a third operation, which includes at least one of the following:

[0016] Forward first information from the first network element to the wireless access network node, the first information including a tunnel identifier allocated by the first network element or the second network element;

[0017] Send second information to the wireless access network node, the second information including the tunnel identifier allocated by the second network element;

[0018] The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0019] Fourthly, a transmission processing apparatus is provided, comprising: a first transceiver unit and a first processing unit;

[0020] The first processing unit is configured to perform a first operation, the first operation including at least one of the following:

[0021] Receive first information from the first network element, the first information including a tunnel identifier allocated by the first network element or the second network element;

[0022] Receive second information from the second network element, the second information including the tunnel identifier allocated by the second network element;

[0023] The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0024] Fifthly, a transmission processing apparatus is provided, comprising: a second transceiver unit and a second processing unit;

[0025] The second processing unit is used to perform a second operation, the second operation including at least one of the following:

[0026] Send first information to the wireless access network node, the first information including a tunnel identifier assigned by the first network element or the second network element;

[0027] Send a first message to the second network element, the first message including fifth information, the fifth information being used to request the second network element to allocate a tunnel identifier, and send the tunnel identifier to the radio access network node;

[0028] The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0029] Sixthly, a transmission processing apparatus is provided, comprising: a third transceiver unit and a third processing unit;

[0030] The third processing unit is configured to perform a third operation, which includes at least one of the following:

[0031] Forward first information from the first network element to the wireless access network node, the first information including a tunnel identifier allocated by the first network element or the second network element;

[0032] Send second information to the wireless access network node, the second information including the tunnel identifier allocated by the second network element;

[0033] The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0034] In a seventh aspect, a transmission processing apparatus is provided, the apparatus being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect, or to implement the steps of the method described in the third aspect.

[0035] Eighthly, a wireless access network node is provided, the wireless access network node including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0036] In a seventh aspect, a wireless access network node is provided, including a processor and a communication interface, wherein the processor is configured to perform a first operation, the first operation including at least one of the following: receiving first information from a first network element, the first information including a tunnel identifier allocated by the first network element or a second network element; receiving second information from a second network element, the second information including a tunnel identifier allocated by the second network element; wherein the tunnel identifier is used to determine a first tunnel, the first tunnel is used for data transmission of a first service between a terminal and the network, the first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0037] Eighthly, a core network element is provided, the core network element including a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implementing the steps of the method as described in the second or third aspect.

[0038] A ninth aspect provides a core network element, including a processor and a communication interface, wherein the processor is configured to perform a second operation, the second operation including at least one of the following: sending first information to a radio access network node, the first information including a tunnel identifier allocated by the first network element or a second network element; sending a first message to the second network element, the first message including fifth information, the fifth information being used to request the second network element to allocate a tunnel identifier, and sending the tunnel identifier to the radio access network node; wherein the tunnel identifier is used to determine a first tunnel, the first tunnel being used for data transmission of a first service between a terminal and the network, and the first network element providing the terminal with control functions related to the first service. The second network element provides the terminal with at least one function of mobility management or access management; or, the processor is configured to perform a third operation, the third operation including at least one of the following: forwarding first information from the first network element to a radio access network node, the first information including a tunnel identifier allocated by the first network element or the second network element; sending second information to the radio access network node, the second information including a tunnel identifier allocated by the second network element; wherein, the tunnel identifier is used to determine a first tunnel, the first tunnel is used for data transmission of a first service between the terminal and the network, the first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0039] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect.

[0040] Eleventhly, a wireless communication system is provided, comprising: a wireless access network node and a core network element, wherein the wireless access network node can be used to perform the steps of the method described in the first aspect, and the core network element can be used to perform the steps of the method described in the second or third aspect.

[0041] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect.

[0042] In a thirteenth aspect, a computer program / program product is provided, the computer program or program product being stored in a storage medium, the computer program or program product being executed by at least one processor to implement the steps of the method as described in the first aspect, or the steps of the method as described in the second aspect, or the steps of the method as described in the third aspect.

[0043] In the embodiments of this application, the radio access network node can obtain the tunnel identifier allocated by the first network element or the second network element, thereby enabling the establishment of the first tunnel corresponding to the tunnel identifier to be triggered by the first network element or the second network element in the distributed non-access stratum architecture. Specifically, for the scheme in which the tunnel identifier is allocated by the first network element, the service NAS and the Mobility Management Protocol Non-Access Stratum (MM NAS) can be further decoupled, and the problem of duplicate tunnel identifiers for different first network elements can also be avoided. In addition, for the scheme in which the second network element allocates the tunnel identifier instead of the first network element, the risk of duplicate tunnel identifiers corresponding to different first network elements can be avoided. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of non-access stratum communication between a terminal and network functions;

[0045] Figure 2 This is a schematic diagram of a distributed NAS architecture;

[0046] Figure 3 This is a schematic diagram of a communication system provided in an embodiment of this application;

[0047] Figure 4 This is a flowchart of a transmission processing method provided in an embodiment of this application;

[0048] Figure 5 This is a flowchart of another transmission processing method provided in the embodiments of this application;

[0049] Figure 6 This is a flowchart of another transmission processing method provided in the embodiments of this application;

[0050] Figure 7 This is a schematic diagram of the first tunnel established according to an embodiment of this application;

[0051] Figure 8 This is a flowchart of the transmission processing method in Embodiment 1 of this application;

[0052] Figure 9 This is a flowchart of the transmission processing method in Embodiment 2 of this application;

[0053] Figure 10This is a flowchart of the transmission processing method in Embodiment 3 of this application;

[0054] Figure 11 This is a structural diagram of another transmission processing apparatus provided in an embodiment of this application;

[0055] Figure 12 This is a structural diagram of another transmission processing apparatus provided in an embodiment of this application;

[0056] Figure 13 This is a structural diagram of another transmission processing device provided in the embodiments of this application;

[0057] Figure 14 This is a structural diagram of a communication device provided in an embodiment of this application;

[0058] Figure 15 This is a structural diagram of a wireless access network node provided in an embodiment of this application;

[0059] Figure 16 This is a structural diagram of a core network element provided in an embodiment of this application. Detailed Implementation

[0060] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0061] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0062] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0063] It is worth noting that the technology described in this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-Carrier Frequency-Division Multiple Access (SC-FDMA), or other systems, such as NTN systems, vehicle-to-everything (V2X), vehicle-to-everything (V2X), machine-type communications (MTC), the Internet of Things (IoT), machine-to-machine (M2M), or future mobile communication systems. As a possible application scenario, NTN systems may include satellite systems. Based on satellite altitude, i.e., satellite orbital altitude, satellites can be classified into highly elliptical orbit (HEO) satellites, geosynchronous earth orbit (GEO) satellites, medium earth orbit (MEO) satellites, and low earth orbit (LEO) satellites. In addition, NTN systems may also include non-terrestrial network-side equipment (or airborne network-side equipment) such as High Altitude Platform Station (HAPS) communication systems. The non-terrestrial network-side equipment involved in this application is not limited to the examples mentioned above.

[0064] The terms "system" and "network" used in the embodiments of this application are often used interchangeably, and the described technologies can be used with respect to the systems and radio technologies mentioned above, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation 6G communication system.

[0065] To facilitate understanding of the embodiments of this application, the following technical points are introduced first:

[0066] 1. Messages regarding the Non-Access Stratum (NAS) of 5G networks.

[0067] In 5G networks, terminals (e.g., User Equipment (UE)) can perform NAS communication with various Network Functions (NFs) on the network side, such as... Figure 1 As shown, when the UE communicates with other NFs besides the AMF, it needs to be forwarded through the AMF (Access and Mobility Management Function).

[0068] It should be noted that NF in this article is a general term for core network elements. NF can be any core network element such as AMF, Session Management Function (SMF), Policy Control Function (PCF), etc.

[0069] For the sake of simplicity, the NAS message sent by the UE to the NF can be referred to as service NAS, NF NAS message or NAS-XX, where "XX" represents the function of the NF. For example, the NAS message sent by the UE to the AMF can be referred to as AMF NAS message or NAS-MM; the NAS message sent by the UE to the SMF can be referred to as SMF NAS message or NAS-SM.

[0070] II. Regarding the sending of NAS messages on the 5G network.

[0071] To prevent the base station from obtaining the UE's information, the base station does not store the UE's permanent identifier, such as the Subscription Permanent Identifier (SUPI) or the International Mobile Subscriber Identity (IMSI).

[0072] When a UE transitions from idle to connected mode, it establishes a Next Generation Application Protocol (NG-AP) connection with the RAN node. During NG-AP connection establishment, the RAN node assigns a unique temporary identifier (RAN UE NGAP ID) to the UE and sends it to the AMF. The AMF, in turn, assigns a unique temporary identifier (AMF UE NGAPID) and sends it to the RAN node. Thus, the RAN node and AMF can uniquely identify a UE based on the RAN UE NGAP ID and the AMF UE NGAP ID.

[0073] When a UE needs to send an uplink (UL) NAS message to an NF outside of any AMF, the sending process is as follows:

[0074] Step 1: The UE includes or encapsulates the NF NAS message within the AMF NAS message and sends the AMF NAS message to the base station via a Radio Resource Control (RRC) message;

[0075] Step 2: The base station sends an AMF NAS message to the AMF via the NG-AP connection. The NG-AP message contains the RAN UENGAP ID and the AMF UE NGAP ID.

[0076] Step 3: The AMF determines which UE it is based on the RAN UE NGAP ID and the AMF UE NGAP ID, and obtains the UE's SUPI locally;

[0077] Step 4: The AMF obtains the NF NAS message from the AMF NAS message and sends the NF NAS message and the UE's SUPI to the NF, so that the NF can know which UE sent the NF NAS message based on the SUPI.

[0078] When an NF receives a downlink (DL) NAS message, the sending process is as follows:

[0079] Step 1: NF sends the NF NAS message and SUPI to AMF;

[0080] Step 2: The AMF determines which UE it is based on the SUPI and includes / encapsulates the NF NAS message in the AMF NAS message;

[0081] Step 3: The AMF sends the NG-AP message corresponding to the SUPI to the base station. The NG-AP message contains the RAN UENGAP ID and the AMF UE NGAP ID.

[0082] Step 4: The base station determines which UE it is based on the RAN UE NGAP ID and AMF UE NGAP ID, and sends the AMF NAS message to the UE through the corresponding RRC message;

[0083] Step 5: The UE locally parses the NF NAS message.

[0084] III. About Distributed NAS Architecture

[0085] Due to network deployment issues, AMF forwarding of NAS may have a circuitous path problem. For example, if the UE and SMF are both in an industrial park, and the AMF is in the operator's data center, NAS communication between the UE and SMF needs to be routed from the industrial park to the operator's data center and then back to the industrial park, resulting in a long NAS path, high latency, and impact on communication performance.

[0086] Related technologies propose a distributed NAS architecture, where the UE can communicate with any NF (Network Function) without needing to go through the AMF (Advanced Feature Formatting ... Figure 2 As shown.

[0087] Figure 3 This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 31 and a network-side device 32.

[0088] Among them, terminal 31 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipborne equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), game console, personal computer (PC), ATM or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 31 is not limited in the embodiments of this application.

[0089] Network-side equipment 32 may include access network equipment or core network equipment. Access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, radio access network node, radio access network unit, or satellite. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc. In this context, a base station may be referred to as a Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The base station is not limited to any specific technical terminology. It should be noted that in this application embodiment, only a base station in an NR system is used as an example for introduction, and the specific type of base station is not limited.

[0090] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized Network Configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support Function. Support Functions (BSF), Application Functions (AF), Location Management Functions (LMF), Gateway Mobile Location Centres (GMLC), and Network Data Analytics Functions (NWDAF), etc. It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0091] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0092] The following description, in conjunction with the accompanying drawings, details the transmission processing method, apparatus, device, and readable storage medium provided in the embodiments of this application through some examples and application scenarios.

[0093] See Figure 4 The embodiments of this application provide a transmission processing method, the specific steps of which include: step 41.

[0094] Step 41: The wireless access network node performs a first operation, which includes at least one of the following:

[0095] Receive first information from the first network element, the first information including a tunnel identifier allocated by the first network element or the second network element;

[0096] Receive second information from the second network element, the second information including the tunnel identifier allocated by the second network element;

[0097] The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0098] Optionally, a radio access network node can also be called a RAN node.

[0099] Optionally, the first network element, the second network element, and the third network element in this article can be core network elements in the distributed NAS architecture of a mobile communication system. The mobile communication system can be a 5G mobile communication system or a new communication system in the future development of communication, such as a 6G mobile communication system.

[0100] Among them, the first network element is a network element that can communicate directly with the terminal. The first network element can also be called the first function, the first functional entity, the first device, the first core network element, or the first core network device; the second network element can also be called the second function, the second functional entity, the second device, the second core network device, or the second core network element; the third network element can also be called the third function, the third functional entity, the third device, the third core network device, or the third core network element.

[0101] Optionally, in addition to service-related control functions, the first network element may also include data processing functions related to the service. This application does not specifically limit the first network element. For example, the first network element may be a core network element such as SMF, PCF, Sensing Function (SF), NWDAF, or Data Plane Function (DPF); or the first network element may also be a network element in the service network deployed by the operator, such as a network element in the IP Multimedia Subsystem (IMS) service network (e.g., Proxy-Call Session Control Function (P-CSCF)), Extended Reality (XR) service network element, AI service network element, robotics service network element, etc.

[0102] Optionally, the aforementioned sensing functions may include at least one of the following: Sensing Function Control Plane (SF-C) and Sensing Function User Plane (SF-U).

[0103] Optionally, the second network element includes, but is not limited to, AMF. The second network element provides the terminal with at least one function of mobility management or access management. For example, the second network element includes at least one function of mobility management and access management, such as AMF, 6G Mobility Management Function (MM Function), 6G Access Management Function (AM Function), etc., and this application does not limit the second network element.

[0104] Optionally, the third network element may include, but is not limited to, business data processing functions.

[0105] In this embodiment, the tunnel identifier that the wireless access network node can obtain can be allocated by the first network element or the second network element. In the case of the tunnel identifier being allocated by the first network element, the service NAS and MM NAS can be further decoupled, and the problem of duplicate tunnel identifiers of different first network elements can be avoided. In addition, the risk of duplicate tunnel identifiers corresponding to different first network elements can be avoided by allocating the tunnel identifier by the second network element instead of the first network element.

[0106] Optionally, the first business includes, but is not limited to, at least one of the following: sensing service, artificial intelligence service.

[0107] In one embodiment of this application, after step 41, the method further includes: the wireless access network node determining the first tunnel to be established based on the tunnel identifier.

[0108] See Figure 7 A UE-granular MM NAS tunnel is established between the RAN node and the second network element. A UE-granular NsAP tunnel is established between the RAN node and the control plane (e.g., SF-C) of the first network element. A UE-granular NsUP tunnel is established between the RAN node and the user plane (e.g., SF-U) of the first network element.

[0109] Optionally, the data transmission includes at least one of the following: User Plane (UP) data and Data Plane data.

[0110] Optionally, the first tunnel may also be referred to as a data tunnel, and the first tunnel may include at least one of the following: user plane tunnel, data plane tunnel.

[0111] It should be noted that in this article, "tunnel" can be replaced with "path" or "channel." For example, a tunnel identifier can also be called a path identifier or channel identifier, and the first tunnel can also be called the first path or the first channel. Optionally, the above-mentioned paths include, but are not limited to, IP paths.

[0112] When the tunnel identifier is assigned by the first network element (NF) and the second network element (AMF), the establishment of the first tunnel no longer needs to go through the AMF, reducing the AMF signaling load. Simultaneously, various services are managed in a distributed manner by their corresponding NFs, ensuring decoupling and preventing confusion between the first tunnels of different NFs. When the tunnel identifier is assigned by the second network element (NF) and the second network element (AMF), the AMF replaces the NF in assigning the tunnel identifier, avoiding the risk of duplicate tunnel identifiers for different NFs. For radio access network nodes, they can partition the first tunnel using the tunnel identifier assigned by the NF or AMF.

[0113] In one embodiment of this application, the wireless access network node determines the first tunnel based on the tunnel identifier, including:

[0114] The wireless access network node determines the first tunnel to be established based on the tunnel identifier and the first identifier of the terminal or the identifier of the first network element.

[0115] In this embodiment, the wireless access network node can distinguish the first tunnel by the tunnel identifier and the first identifier of the terminal or the identifier of the first network element.

[0116] Optionally, the first identifier of the terminal includes, but is not limited to, at least one of the following: an identifier assigned to the terminal by the first network element, or an identifier corresponding to the terminal on the interface between the radio access network node and the second network element.

[0117] In one embodiment of this application, after the wireless access network node determines that a first tunnel needs to be established, the method further includes:

[0118] The wireless access network node establishes the first tunnel through at least one of the following operations:

[0119] 1) Allocate the air interface resources required for the first tunnel;

[0120] Optionally, the air interface resources required by the first tunnel are allocated based on the Quality of Service (QoS) information of the first tunnel.

[0121] 2) Allocate information for the first tunnel used for downlink transmission;

[0122] Optionally, the information of the first tunnel used for downlink transmission may also be referred to as data or control information in the first tunnel used for downlink transmission or radio access network user plane tunnel information (AN UP tunnel info).

[0123] 3) Initiate the establishment of the air interface tunnel corresponding to the first tunnel to the terminal.

[0124] It is understandable that an air interface tunnel (Uu Tunnel) is a data tunnel established between a terminal and a radio access network based on the Uu interface, used to carry user plane data and control plane data.

[0125] The aforementioned air tunnel can also be called an air path or air channel.

[0126] In one embodiment of this application, receiving first information from a first network element includes at least one of the following:

[0127] 1) Receive the first information from the first network element forwarded by the second network element;

[0128] 2) Receive the first information directly from the first network element;

[0129] The first information is used to instruct the wireless access network node to establish the first tunnel for the terminal.

[0130] In one embodiment of this application, the first information further includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier corresponding to the terminal on the interface between the wireless access network node and the second network element, information of the first tunnel for uplink transmission, and QoS information corresponding to the first tunnel.

[0131] Optionally, the information in the first tunnel used for uplink transmission may also be referred to as data or control information in the first tunnel used for uplink transmission.

[0132] Optionally, the number of identifiers corresponding to the terminal on the interface between the wireless access network node and the second network element can be one or more. In this embodiment, the specific number of the above identifiers is not limited.

[0133] In one embodiment of this application, the method further includes at least one of the following:

[0134] 1) The wireless access network node sends third information to the first network element through the second network element;

[0135] 2) The wireless access network node directly sends the third information to the first network element device;

[0136] The third information is used in response to the first information.

[0137] In one embodiment of this application, the third information includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, an identifier corresponding to the terminal on the interface between the radio access network device and the second network element, information for instructing the radio access network node to accept or reject the tunnel identifier, and information for the first tunnel for downlink transmission.

[0138] In one embodiment of this application, the second information further includes at least one of the following: information sent by the first network element to the radio access network node, and the identifier corresponding to the terminal on the interface between the radio access network node and the second network element.

[0139] In one embodiment of this application, the information sent by the first network element to the radio access network node includes at least one of the following: information about the first tunnel used for uplink transmission, QoS information of the first tunnel, information about the first network element, and an identifier assigned by the first network element to the terminal.

[0140] Optionally, the information of the first network element includes, but is not limited to, at least one of the following: the address information of the first network element, the port number information of the first network element, the identifier of the first network element, the type information of the first network element, etc., wherein the type information of the first network element is used to indicate the type of the first network element. For example, the type of the first network element includes, but is not limited to, at least one of the following: SF type, AI NF type, etc.

[0141] In one embodiment of this application, after the wireless access network node receives the second information, the method further includes:

[0142] The wireless access network node sends a fourth message to the second network element, the fourth message being used to respond to the second message;

[0143] The fourth information includes at least one of the following: information sent by the wireless access network node to the first network element, and information sent by the wireless access network node to the second network element.

[0144] In one embodiment of this application, the information sent by the radio access network node to the first network element includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, information for instructing the radio access network device to accept or reject the tunnel identifier, and information about the first tunnel for downlink transmission.

[0145] In one embodiment of this application, the information sent by the wireless access network node to the second network element includes: the identifier corresponding to the terminal on the interface between the wireless access network node and the second network element.

[0146] In one embodiment of this application, the information of the first tunnel for uplink transmission includes at least one of the following:

[0147] 1) The address information of the first network element;

[0148] Optionally, the address information includes, but is not limited to, at least one of the following: Internet Protocol (IP) address, Media Access Control Address (MAC) address, etc.

[0149] 2) Port number information of the first network element;

[0150] Optionally, the port number information includes, but is not limited to, at least one of the following: Transmission Control Protocol (TCP) port number information, User Datagram Protocol (UDP) port number information, Quick UDP Internet Connections (QUIC) port number information, etc.

[0151] 3) The first network element assigns a Tunnel EndpointIdentifier (TEID) to the first tunnel.

[0152] In one embodiment of this application, the first tunnel is used for data transmission of a first service between the terminal and the network, including:

[0153] The first tunnel is used for the terminal and the third network element to transmit the data of the first service, and the third network element is used to process the data of the first service;

[0154] The third network element may be the same as or different from the first network element. It is understood that when the third network element and the first network element are combined, the first network element and the third network element are the same; when the third network element and the first network element are set independently, the first network element and the third network element are different.

[0155] It is understood that, when the first tunnel is used for data transmission of the first service between the terminal and the third network element, the information of the first tunnel used for uplink transmission includes at least one of the following:

[0156] The address information of the third network element;

[0157] The port number information of the third network element;

[0158] The third network element is the TEID assigned to the first tunnel.

[0159] In one embodiment of this application, the information of the first tunnel for downlink transmission includes at least one of the following:

[0160] 1) The address information of the wireless access network node;

[0161] 2) Port number information of the wireless access network node;

[0162] 3) The wireless access network node is the TEID assigned to the first tunnel.

[0163] In one embodiment of this application, the tunnel identifier is unique within at least one of the following ranges:

[0164] 1) The range corresponding to the terminal;

[0165] Optionally, the range corresponding to the terminal includes the range corresponding to the second identifier of the terminal. The second identifier of the terminal can be a permanent identifier of the terminal. The permanent identifier of the terminal can include, but is not limited to, at least one of the following: IMSI, SUPI, and other globally unique UE identifiers.

[0166] 2) The range corresponding to the first network element;

[0167] Optionally, the range corresponding to the first network element includes at least one of the following: the range corresponding to the ID of the first network element, and the range corresponding to the type of the first network element.

[0168] 3) The scope corresponding to the first service.

[0169] Optionally, the scope corresponding to the first service includes: the scope corresponding to the service type of the first service.

[0170] In this embodiment, the above design avoids duplicate tunnel identifiers, thereby ensuring the establishment of a stable and reliable first tunnel between the terminal and the network. This uniqueness not only improves the effectiveness of tunnel management but also reduces potential conflicts during data communication.

[0171] In the embodiments of this application, the wireless access network node can obtain the tunnel identifier allocated by the first network element or the second network element, thereby enabling the establishment of the first tunnel corresponding to the tunnel identifier to be triggered by the first network element or the second network element in the distributed non-access stratum network architecture. Among them, the scheme in which the tunnel identifier is allocated by the first network element can achieve the effect of further decoupling of service NAS and MM NAS, and can also avoid the problem of duplicate tunnel identifiers of different first network elements. In addition, the scheme in which the tunnel identifier is allocated by the second network element instead of the first network element can avoid the risk of duplicate tunnel identifiers corresponding to different first network elements.

[0172] See Figure 5 The embodiments of this application provide a transmission processing method, the specific steps of which include: step 51.

[0173] Step 51: The first network element performs a second operation, which includes at least one of the following:

[0174] The first network element sends first information to the wireless access network node, the first information including a tunnel identifier allocated by the first network element or the second network element;

[0175] The first network element sends a first message to the second network element, the first message including fifth information, the fifth information being used to request the second network element to allocate a tunnel identifier, and then sending the tunnel identifier to the radio access network node;

[0176] The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0177] In one embodiment of this application, when the first network element sends first information to the wireless access network node, the method further includes: the first network element obtaining the tunnel identifier.

[0178] In one embodiment of this application, the first network element acquires the tunnel identifier, including:

[0179] The first network element assigns the tunnel identifier; or

[0180] The first network element requests the second network element to allocate the tunnel identifier.

[0181] In one embodiment of this application, the first network element requests the second network element to allocate the tunnel identifier, including:

[0182] The first network element sends a second message to the second network element, the second message being used to request the second network element to allocate the tunnel identifier.

[0183] The second message includes at least one of the following: the second identifier of the terminal, the information of the first network element, and the type information of the first service.

[0184] Optionally, the second identifier of the terminal includes a permanent identifier of the UE, wherein the permanent identifier of the UE includes, but is not limited to, at least one of the following: IMSI, SUPI, etc., which are globally unique identifiers of the UE.

[0185] In one embodiment of this application, after the first network element obtains the tunnel identifier, the method further includes:

[0186] The first network element sends a sixth message to the third network element, the sixth message being used to request information about the first tunnel used for uplink transmission;

[0187] The first network element receives the information of the first tunnel for uplink transmission sent by the third network element;

[0188] The third network element may be the same as or different from the first network element.

[0189] Optionally, the sixth piece of information is carried in the tunnel establishment request message, and the information of the first tunnel used for uplink transmission is carried in the tunnel establishment response message.

[0190] In one embodiment of this application, the sixth information includes at least one of the following: the second identifier of the terminal, the tunnel identifier, and the QoS information of the first tunnel.

[0191] In one embodiment of this application, the first network element sends first information to the radio access network node, including at least one of the following:

[0192] 1) The first network element sends the first information to the wireless access network node through the second network element;

[0193] 2) The first network element directly sends the first information to the wireless access network node;

[0194] The first information is used to instruct the wireless access network node to establish the first tunnel for the terminal.

[0195] In one embodiment of this application, the first information further includes: an identifier assigned to the terminal by the first network element, an identifier corresponding to the terminal on the interface between the wireless access network node and the second network element, information of the first tunnel used for uplink transmission, and QoS information of the first tunnel.

[0196] In one embodiment of this application, when the first network element sends first information to the radio access network node, the method further includes at least one of the following:

[0197] 1) The first network element receives the third information from the radio access network node forwarded by the second network element;

[0198] 2) The first network element directly receives the third information from the wireless access network node;

[0199] The third information is used in response to the first information.

[0200] In one embodiment of this application, the third information includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, an identifier corresponding to the terminal on the interface between the radio access network device and the second network element, information for instructing the radio access network node to accept or reject the tunnel identifier, and information for the first tunnel for downlink transmission.

[0201] In one embodiment of this application, the first message further includes at least one of the following: information sent by the first network element to the radio access network node, and information sent by the first network element to the second network element.

[0202] In one embodiment of this application, the information sent by the first network element to the radio access network node includes at least one of the following: information about the first tunnel used for uplink transmission, QoS information of the first tunnel, information about the first network element, and an identifier assigned by the first network element to the terminal.

[0203] In one embodiment of this application, the information sent by the first network element to the second network element includes at least one of the following: the fifth information, the second identifier of the terminal, the information of the first network element, and the type information of the first service.

[0204] In one embodiment of this application, the method further includes at least one of the following:

[0205] 1) The first network element receives information sent by the wireless access network node to the first network element;

[0206] 2) The first network element sends at least one of the following to the third network element: the second identifier of the terminal, the information of the first tunnel for uplink transmission, the information of the first tunnel for downlink transmission, and the tunnel identifier.

[0207] Optionally, at least one of the terminal's second identifier, the information of the first tunnel for uplink transmission, the information of the first tunnel for downlink transmission, and the tunnel identifier can be carried by a tunnel modification request message.

[0208] In one embodiment of this application, the information sent by the radio access network node to the first network element includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, information for instructing the radio access network device to accept or reject the tunnel identifier, and information about the first tunnel for downlink transmission.

[0209] In one embodiment of this application, the information of the first tunnel for downlink transmission includes at least one of the following:

[0210] 1) The address information of the wireless access network node;

[0211] 2) Port number information of the wireless access network node;

[0212] 3) The wireless access network node is the TEID assigned to the first tunnel.

[0213] In one embodiment of this application, the information of the first tunnel for uplink transmission includes at least one of the following:

[0214] 1) The address information of the first network element;

[0215] 2) Port number information of the first network element;

[0216] 3) The first network element is the TEID allocated to the first tunnel.

[0217] In one embodiment of this application, the first tunnel is used for data transmission of a first service between the terminal and the network, including:

[0218] The first tunnel is used for data transmission of the first service between the terminal and the third network element, and the third network element is used to process the data of the first service.

[0219] The third network element may be the same as or different from the first network element.

[0220] It is understood that, when the first tunnel is used for data transmission of the first service between the terminal and the third network element, the information of the first tunnel used for uplink transmission includes at least one of the following:

[0221] 1) The address information of the third network element;

[0222] 2) Port number information of the third network element;

[0223] 3) The third network element is the TEID allocated to the first tunnel.

[0224] In one embodiment of this application, the tunnel identifier is unique within at least one of the following ranges:

[0225] 1) The range corresponding to the terminal;

[0226] 2) The range corresponding to the first network element;

[0227] 3) The scope corresponding to the first service.

[0228] In this embodiment, the above design avoids duplicate tunnel identifiers, thereby ensuring the establishment of a stable and reliable first tunnel between the terminal and the network. This uniqueness not only improves the effectiveness of tunnel management but also reduces potential conflicts during data communication.

[0229] In this embodiment, the first network element can send a tunnel identifier allocated by the first network element or the second network element to the radio access network node, or the first network element can request the second network element to allocate a tunnel identifier for the UE specified by the first network element and send the tunnel identifier to the radio access network node, thereby realizing the establishment process of the first tunnel corresponding to the tunnel identifier triggered by the first network element or the second network element. Among them, the scheme in which the tunnel identifier is allocated by the first network element can achieve the effect of further decoupling of service NAS and MM NAS, and can also avoid the problem of duplicate tunnel identifiers of different first network elements. In addition, the scheme in which the second network element allocates the tunnel identifier instead of the first network element can avoid the risk of duplicate tunnel identifiers corresponding to different first network elements.

[0230] See Figure 6 The embodiments of this application provide a transmission processing method, the specific steps of which include: step 61.

[0231] Step 61: The second network element performs a third operation, which includes at least one of the following:

[0232] 1) Forward first information from the first network element to the wireless access network node, the first information including the tunnel identifier allocated by the first network element or the second network element;

[0233] 2) Send second information to the wireless access network node, the second information including the tunnel identifier allocated by the second network element.

[0234] The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0235] In one embodiment of this application, where the third operation includes forwarding first information from the first network element to the radio access network node, the method further includes:

[0236] The second network element receives a second message sent by the first network element, the second message being used to request the second network element to allocate the tunnel identifier;

[0237] The second network element allocates the tunnel identifier according to the second message.

[0238] Optionally, the second message can also be called a tunnel identifier allocation request message.

[0239] In one embodiment of this application, the second message includes at least one of the following: the second identifier of the terminal, the information of the first network element, and the type information of the first service.

[0240] In one embodiment of this application, where the third operation includes sending second information to the radio access network node, the method further includes:

[0241] The second network element receives a first message sent by the first network element. The first message includes fifth information, which is used to request the second network element to allocate a tunnel identifier and send the tunnel identifier to the radio access network node.

[0242] The second network element allocates the tunnel identifier according to the first message.

[0243] In one embodiment of this application, the first message further includes at least one of the following: information sent by the first network element to the radio access network node, and information sent by the first network element to the second network element.

[0244] In one embodiment of this application, the information sent by the first network element to the radio access network node includes at least one of the following: information about the first tunnel used for uplink transmission, QoS information of the first tunnel, information about the first network element, and an identifier assigned by the first network element to the terminal.

[0245] In one embodiment of this application, the information sent by the first network element to the second network element includes at least one of the following: the fifth information, the second identifier of the terminal, the information of the first network element, and the type information of the first service.

[0246] Optionally, the second identifier of the terminal includes a permanent identifier of the UE, wherein the permanent identifier of the UE includes, but is not limited to, at least one of the following: IMSI, SUPI, etc., which are globally unique identifiers of the UE.

[0247] In one embodiment of this application, after forwarding the first information from the first network element to the radio access network node, the method further includes at least one of the following:

[0248] The second network element receives third information sent by the wireless access network node, the third information being used to respond to the first information;

[0249] The second network element sends the information sent by the wireless access network node to the first network element.

[0250] In one embodiment of this application, the third information includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, an identifier corresponding to the terminal on the interface between the radio access network device and the second network element, information for instructing the radio access network node to accept or reject the tunnel identifier, and information of the first tunnel for downlink transmission.

[0251] In one embodiment of this application, the first information further includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier corresponding to the terminal on the interface between the wireless access network node and the second network element, information of the first tunnel used for uplink transmission, and QoS information of the first tunnel.

[0252] In one embodiment of this application, the second information further includes at least one of the following: information sent by the first network element to the radio access network node, and the identifier corresponding to the terminal on the interface between the radio access network node and the second network element.

[0253] In one embodiment of this application, the information sent by the first network element to the wireless access network node includes at least one of the following: information of the first tunnel for uplink transmission, QoS information of the first tunnel, information of the first network element, and an identifier assigned by the first network element to the terminal.

[0254] In this embodiment, the second network element can forward first information from the first network element to the radio access network node. The first information includes a tunnel identifier allocated by the first network element or the second network element. Alternatively, the second network element can send second information to the radio access network node. The second information includes a tunnel identifier allocated by the second network element. In the case where the tunnel identifier is allocated by the first network element, the service NAS and MM NAS can be further decoupled, and the problem of duplicate tunnel identifiers of different first network elements can be avoided. In addition, the risk of duplicate tunnel identifiers corresponding to different first network elements can be avoided when the second network element allocates the tunnel identifier instead of the first network element.

[0255] The implementation methods of this application are described below with reference to Embodiments 1, 2, and 3. In these embodiments, the radio access network node is the RAN node, the first network element is the NF, the second network element is the AMF, and the third network element is the service data processing function. It should be noted that the first, second, and third network elements are not limited to the examples described above. When the first, second, and third network elements are other network elements, the implementation methods are similar to those described in Embodiments 1 to 3, and will not be repeated here.

[0256] Example 1:

[0257] In the distributed NAS architecture of this embodiment, the NF triggers the establishment of the data tunnel required by the corresponding service, and the NF assigns the tunnel identifier.

[0258] In this embodiment, the establishment of data tunnels no longer needs to go through the AMF, reducing the AMF signaling load; at the same time, various services are distributedly managed by their corresponding NFs, and the data tunnels between them are decoupled and do not get confused. RAN nodes can distinguish data tunnels by NF ID or the identifier of the terminal assigned by the NF (NF assigned UE ID) and the tunnel identifier.

[0259] See Figure 8 The specific steps are as follows:

[0260] Step 1: The UE sends a Radio Resource Control (RRC) message to the RAN node. This RRC message may carry an NF NAS message.

[0261] When a UE decides to initiate the first service interaction with the network, the UE's service module can generate relevant information about the first service and encapsulate this information in an NF NAS message.

[0262] Optionally, NF NAS messages can also be called service NAS messages.

[0263] Optionally, NF NAS messages may include, but are not limited to, session IDs.

[0264] Optionally, the first business includes, but is not limited to, at least one of the following: perception business, artificial intelligence business, etc.

[0265] Optionally, the relevant information for the first service includes, but is not limited to, at least one of the following: sensing service establish request, sensing service modify request, service session ID, etc.

[0266] Optionally, the target object of the NF NAS message includes NF. The NF NAS message passes through the RAN node, or is forwarded through the RAN node and AMF, but the RAN node or AMF does not parse the NF NAS message.

[0267] Step 2: The RAN node forwards the NF NAS message to the NF.

[0268] Optionally, step 2 may include step 2a or step 2b.

[0269] Step 2a: The RAN node forwards the NF NAS message to the NF through the AMF.

[0270] Step 2b: The RAN node directly forwards the NF NAS message to the NF.

[0271] Optionally, in step 2b, before forwarding the NF NAS message, the RAN node may first determine the target object NF. Optionally, the RAN node may determine the target object NF in the following ways, including but not limited to at least one of the following:

[0272] Method 1: The AMF determines the NF based on the UE's first service and feeds back the NF information to the RAN node.

[0273] Method 2: The RAN node determines the target NF by querying the network element information database (e.g., User Data Management (UDM), Network Repository Function (NRF)) based on at least one of the following: service type, area range, UE type, etc.

[0274] Optionally, in step 2a, after the AMF receives the NF NAS message forwarded by the RAN node, the AMF determines whether the UE is authorized to initiate the first service, that is, whether the AMF determines whether the UE is allowed to perform the first service or access the NF of the first service.

[0275] Specifically, the AMF can obtain the UE's subscription information from the UDM. The UE's subscription information may include at least one of the following: the type information of the first service subscribed by the UE, the type information of the NF, the NAS type information, etc.

[0276] In addition, when forwarding information via AMF, the target object NF can also be assigned by AMF.

[0277] Step 3: Optionally, the NF can verify whether the UE is authorized to initiate the first service in the NF NAS message.

[0278] Specifically, the NF can interact with the UDM to obtain the subscription information of the UE related to the first service. The NF provides the UDM with at least one of the terminal's second identifier, the type information of the first service, the type information of the NF, and the type information of the NAS. The NF obtains the subscription information from the UDM. The subscription information includes at least one of the following: whether the first service is allowed, the conditions under which the first service is allowed, and the conditions under which the first service is restricted.

[0279] Step 4: Optionally, NF obtains policy information related to the first service from the policy function through policy setup or update.

[0280] Optionally, policy features include, but are not limited to, PCF.

[0281] Optionally, the policy information includes at least one of the following: access policy information, QoS information, etc. The QoS information includes, but is not limited to, the QoS information of the first tunnel corresponding to the first service.

[0282] Step 5: NF establishes or modifies the UE context for the first service in the NF NAS message for the UE.

[0283] Optionally, NF also performs at least one of the following operations:

[0284] 1) If the UE does not provide a session ID for the first service, the NF can assign a session ID for that first service;

[0285] 2) The NF assigns an identifier to the UE, which is used to uniquely identify the UE within the NF.

[0286] Optionally, the NF may assign an identifier to the UE in any of the following ways:

[0287] Method 1: NF assigns a globally unique identifier to the UE.

[0288] Optional, globally unique identifiers include, but are not limited to: NF ID + NF UE ID, where "NF ID" is an identifier used to identify a specific NF, and "NF UE ID" refers to an identifier used to identify a specific UE within the scope managed or controlled by a specific NF.

[0289] If method one is adopted, other network elements can use this globally unique identifier to globally and uniquely identify a specific UE.

[0290] Method 2: In order to uniquely identify the UE between RAN and NF, NF assigns the UE's identifier (i.e., NF assigned UE ID).

[0291] In Method 2, the UE identifier assigned by the NF is used to uniquely identify the UE within the scope managed or controlled by that NF. Subsequently, the RAN node can also assign a UE identifier (i.e., the RAN-assigned UEID) which is used to uniquely identify the UE within the scope managed or controlled by that RAN. Only when the NF-assigned UE identifier and the RAN-assigned UE identifier are used together can a UE be globally and uniquely identified. It is understood that Method 2 requires the RAN to generate a RAN-assigned UE identifier for the UE.

[0292] Step 6: If, based on the NF NAS message from the UE, it is determined that the UE's first service still requires the establishment of a first tunnel, the NF assigns a tunnel identifier.

[0293] The first tunnel is used to transmit data for the first service between the terminal and the network. For example, the data for the first service includes, but is not limited to: the sensing service potentially requiring the transmission of massive amounts of measurement data, or the AI ​​service requiring the transmission of training data or model data. The first tunnel may include at least one of the following: a UP tunnel or a data plane tunnel.

[0294] Step 7a: Optionally, if the first service has a corresponding service data processing function, the NF initiates a tunnel establishment request message to the service data processing function to establish the first tunnel for the UE.

[0295] Optionally, business data processing functions include, but are not limited to, the business user plane (service UP).

[0296] Optionally, the tunnel establishment request message can also be called the Nx session user plane request (Nx session UPrequest) message.

[0297] In one implementation, a separate function is deployed to process service-related data, independent of the NF used for processing service signaling.

[0298] Optionally, the tunnel establishment request message includes a sixth piece of information, which includes at least one of the following:

[0299] 1) A second identifier for the terminal, for example, the second identifier for the terminal includes the terminal's permanent identifier;

[0300] 2) Tunnel signage;

[0301] Optionally, the tunnel sign can also be called the UP tunnel sign.

[0302] 3) QoS information for the first tunnel;

[0303] Step 7b: The service data processing function allocates the tunnel resources required for the first tunnel and returns a tunnel establishment response message to the NF. The tunnel establishment response message may include information about the first tunnel used for uplink transmission.

[0304] Optionally, the tunnel establishment response message can also be called the Nx session user plane response (Nx session UPresponse) message.

[0305] Optionally, the service data processing function can allocate the tunnel resources required by the first tunnel based on the QoS information of the first tunnel.

[0306] Optionally, the information of the first tunnel used for uplink transmission can be referred to as Network Function User Plane Tunnel Information (NF UP tunnel info).

[0307] Optionally, the information for the first tunnel used for uplink transmission includes at least one of the following:

[0308] 1) Address information for business data processing functions;

[0309] Optionally, the address information includes, but is not limited to, at least one of the following: IP address, MAC address, etc.

[0310] 2) Port number information for business data processing functions;

[0311] Optionally, the port number information includes, but is not limited to, at least one of the following: TCP port number information, UDP port number information, QUIC port number information, etc.

[0312] 3) Endpoint identification information of the business data processing function side of the first tunnel;

[0313] Optionally, the endpoint identification information of the first tunnel's service data processing function side includes, but is not limited to, the tunnel endpoint identifier (TEID) of the first tunnel assigned by the service data processing function side.

[0314] It should be noted that if no independent business data processing function is deployed (i.e., the business data processing function is set up in conjunction with the NF), then steps 7a and 7b can be omitted, and the uplink data tunnel information can be directly allocated by the NF.

[0315] Step 8: The NF sends a UE context establishment or modification request message to the RAN node. The UE context establishment or modification request message is used to establish the UE context on the interface between RAN and NF.

[0316] Optionally, the UE context establishment or modification request message may carry first information, which includes at least one of the following:

[0317] 1) The terminal's first identifier;

[0318] Optionally, the terminal's first identifier includes at least one of the following:

[0319] a) The identifier assigned by NF to the UE, which may be a temporary identifier;

[0320] Optionally, the identifier assigned by the NF to the UE includes, but is not limited to, at least one of the following: NF ID + NF UE ID, or NFUE NxAP ID;

[0321] Optionally, the NF UE NxAP ID refers to an identifier used to identify a specific UE on the RAN-NF interface within the scope managed or controlled by the NF. The NF UE NxAP ID ensures uniqueness when processing signaling and data flows related to the UE within the scope managed or controlled by the NF, which helps to effectively manage sessions and quality of service.

[0322] b) The identifier corresponding to the UE on the interface between AMF-RAN nodes, which may be a temporary identifier;

[0323] Optionally, the identifier corresponding to the UE on the interface between AMF-RAN nodes includes, but is not limited to, at least one of the following: RANUE NgAP ID, or RAN UE NgAP ID + AMF UE NgAP ID;

[0324] Optionally, the RAN UE NgAP ID refers to a unique identifier used to identify a specific UE when communicating through the NgAP interface in the radio access network. The RAN UE NgAP ID ensures that RAN nodes and core network elements can correctly identify and manage the status and related data flows of each UE.

[0325] Optionally, the AMF UE NgAP ID refers to an identifier used to uniquely identify a UE within the context of the AMF. The AMF UE NgAP ID ensures that the AMF can correctly manage, track, and process requests and states related to a specific UE. The AMF UE NgAP ID helps optimize network resource management and improve service quality.

[0326] 2) Tunnel signage;

[0327] 3) Information about the first tunnel used for uplink transmission;

[0328] 4) QoS information of the first tunnel.

[0329] Optionally, step 8 may include step 8a or step 8b.

[0330] In step 8a, the context establishment or modification request message is forwarded to the RAN node via the AMF;

[0331] In step 8b, the NF directly forwards the context creation or modification request message to the RAN node.

[0332] Optionally, in step 8b, the NF obtains information about the target RAN node before the context establishment or modification request message is forwarded. For example, the NF can obtain the target RAN node information from the AMF in step 2.

[0333] Optionally, the target RAN node information includes, but is not limited to, at least one of the following: RAN node ID, RAN node address, RAN node port number, etc.

[0334] Step 9: The RAN node determines the first tunnel to be established based on the UE's first identifier and the tunnel identifier.

[0335] Optionally, the RAN node establishes the first tunnel through at least one of the following operations: 1) the RAN node allocates the air interface resources required for the first tunnel, 2) allocates the downlink information for the first tunnel, and 3) initiates the establishment of the air interface tunnel corresponding to the first tunnel to the UE (see step 9a).

[0336] Optionally, the RAN node allocates the air interface resources required for the first tunnel based on the QoS information of the first tunnel.

[0337] Optionally, the downlink information for the first tunnel includes at least one of the following:

[0338] 1) Address information of RAN nodes;

[0339] Optionally, the address information includes, but is not limited to, at least one of the following: IP address, MAC address, etc.

[0340] 2) Port number information of the RAN node;

[0341] Optionally, the port number information includes, but is not limited to, at least one of the following: TCP port number information, UDP port number information, QUIC port number information, etc.

[0342] 3) Endpoint identification information on the RAN node side of the first tunnel;

[0343] Optionally, the endpoint identification information on the RAN node side of the first tunnel includes, but is not limited to, the TEID of the tunnel assigned by the RAN node.

[0344] Step 9a: The RAN node establishes the air interface tunnel corresponding to the first tunnel on the air interface;

[0345] Optionally, the RAN node can establish an air interface tunnel corresponding to the first tunnel on the air interface based on the QoS information of the first tunnel.

[0346] Optionally, the RAN node establishes an air interface tunnel corresponding to the first tunnel on the air interface through a radio beacon setup / update process.

[0347] Step 10: The RAN node sends a UE context establishment or modification response message to the NF to indicate whether the UE context on the RAN-NF interface was successfully established.

[0348] Optionally, the UE context establishment or modification response message may include third information, which includes at least one of the following:

[0349] 1) The UE's third identifier;

[0350] Optionally, the UE's third identifier includes at least one of the following:

[0351] a) The identifier assigned to the UE by the NF;

[0352] Optionally, the identifier assigned by the NF to the UE includes, but is not limited to, at least one of the following: NF ID + NF UE ID, or NFUE NxAP ID;

[0353] b) The identifier assigned to the UE by the RAN node;

[0354] Optionally, the identifier assigned by the RAN node to the UE includes, but is not limited to, at least one of the following: RAN ID + NF UE ID, or RAN UE NxAP ID;

[0355] Optionally, the RAN UE NxAP ID refers to an identifier used to identify a specific UE on the RAN-NF interface within the scope managed or controlled by the RAN node. The RAN UE NxAP ID ensures that the RAN node has a unique reference when processing requests and management information related to that UE, which helps in effective session management and resource allocation.

[0356] c) The identifier corresponding to the UE on the interface between AMF-RAN nodes;

[0357] Optionally, the identifier corresponding to the UE on the interface between AMF-RAN nodes includes, but is not limited to, at least one of the following: RANUE NgAP ID, or RAN UE NgAP ID + AMF UE NgAP ID;

[0358] 2) Information used to instruct RAN nodes to accept or reject tunnel identifiers;

[0359] Optionally, if the above information indicates that the RAN node accepts the tunnel identifier of the first tunnel, it means that the first tunnel has been successfully established; if the above information indicates that the RAN node rejects the tunnel identifier of the first tunnel, it means that the first tunnel has failed to be established.

[0360] 3) Downstream information for the first tunnel;

[0361] Optionally, step 10 includes either step 10a or step 10b. In step 10a, the RAN node sends a context establishment or modification response message to the NF via the AMF. In step 10b, the RAN node directly sends the UE's context establishment or modification response message to the NF.

[0362] Step 11: Optionally, the NF initiates a tunnel modification request to the service data processing function to indicate to the service data processing function the downlink information of the first tunnel received by the NF from the RAN node.

[0363] Optionally, the tunnel modification request message can also be called the Nx session user plane request (Nx session UPrequest) message.

[0364] Optionally, the tunnel modification request message includes, but is not limited to, at least one of the following: the terminal's second identifier, the tunnel identifier, and the downlink information of the first tunnel.

[0365] Specifically, the NF uniquely determines the UE's first tunnel based on the UE's third identifier and tunnel identifier. For the first tunnel, the NF sends downlink information of the first tunnel to the service data processing function.

[0366] At this point, the first tunnel has been successfully established. The first tunnel includes an air interface tunnel and a core network tunnel, which can be used to transmit user plane data or media data for services.

[0367] Step 12: Optionally, the NF sends an NF NAS message to the RAN.

[0368] Optionally, NF NAS messages include, but are not limited to, at least one of the following:

[0369] 1) Session ID;

[0370] 2) Tunnel signage;

[0371] 3) QoS information of the first tunnel.

[0372] Optionally, step 12 can be combined with step 8 and executed simultaneously, or steps 8 and 12 can be executed separately. When executed separately, the order of steps 8 and 12 is not specifically limited.

[0373] Optionally, step 12 includes either step 12a or step 12b, in which the NF sends an NFNAS message to the RAN node via the AMF. In step 12b, the NF sends an NF NAS message directly to the RAN node.

[0374] Step 13: Optionally, the RAN node sends an NF NAS message to the UE.

[0375] Example 2

[0376] In the distributed NAS architecture of this embodiment, the NF triggers the establishment of data tunnels required by various services, but the AMF allocates the tunnel identifiers of the data tunnels.

[0377] Various services are managed in a distributed manner by their corresponding NFs. Most of the work of establishing data tunnels for various services does not need to go through the AMF, greatly reducing the AMF signaling load. Only the AMF needs to allocate tunnel identifiers, which ensures the uniqueness of the tunnel identifier for each UE and avoids the risk of different NFs (such as SF, NWDAF, etc.) generating the same tunnel identifier for different data tunnels of the same UE.

[0378] See Figure 9 The specific steps are as follows:

[0379] Steps 1-5 in Example 2 can be referred to steps 1-5 in Example 1, and will not be repeated here.

[0380] Optionally, if the NF determines that the UE's first service still requires the establishment of a first tunnel, then proceed to step 6a.

[0381] Step 6a: The NF sends a tunnel identifier allocation request message (i.e., the second message) to the AMF. The tunnel identifier allocation request message is used to request the AMF to allocate a tunnel identifier for the UE indicated by the NF.

[0382] Optionally, the tunnel identifier allocation request message includes at least one of the following:

[0383] 1) The terminal's second identifier;

[0384] 2) The ID of the NF, which is used to identify the NF;

[0385] 3) Type information of NF: The type information of NF is used to indicate the type of NF. For example, the type of NF includes, but is not limited to, at least one of the following: SF type, AI NF type, etc.

[0386] 4) Type information of the first service. The type information is used to indicate the type of the first service. For example, the type of the first service includes, but is not limited to, at least one of the following: sensing service type, AI service type, etc.

[0387] Step 6b: The AMF assigns a tunnel identifier to the UE indicated by the NF.

[0388] Optionally, the tunnel identifier can be unique within at least one of the following ranges:

[0389] 1) Within the range corresponding to the UE;

[0390] Optionally, if the tunnel identifier is unique within the UE range, the first tunnel can be uniquely identified solely by the terminal's second identifier and the tunnel identifier, without needing to carry much other information.

[0391] 2) Within the range corresponding to NF;

[0392] Optionally, the range corresponding to NF includes at least one of the following: the range corresponding to NF ID, and the range corresponding to NF type.

[0393] 4) Within the scope corresponding to the first business;

[0394] Optionally, the scope corresponding to the first service includes the scope corresponding to the service type of the first service.

[0395] Taking the case where the tunnel identifier is unique within the range corresponding to the UE as an example:

[0396] The tunnel identifier can be unique within the range corresponding to the UE ID. That is, the AMF uses the UE ID as an index. When the AMF receives a new tunnel identifier request message for the UE, it assigns a different identifier that has not been assigned before as the tunnel identifier. The UE ID includes, but is not limited to, the terminal's first identifier, the terminal's second identifier, or the terminal's third identifier.

[0397] Furthermore, the tunnel identifier can be unique within the range corresponding to a specific NF ID. That is, the AMF uses the UE's first identifier and NF ID as an index. When the UE receives a tunnel identifier request message from a specific NF, it assigns a different identifier that has not been assigned before to the UE as the tunnel identifier.

[0398] In addition, the tunnel identifier can be unique within a specific NF type range. That is, the AMF uses the UE ID and NF type as indexes. When the UE receives a tunnel identifier request message from a different NF within a specific NF type range, it assigns a different identifier that has not been assigned before as the tunnel identifier for the UE within the NF type range.

[0399] Step 6c: The AMF sends a tunnel identifier allocation response to the NF. The tunnel identifier allocation response includes at least one of the following: the terminal's second identifier and the tunnel identifier allocated by the AMF to the NF.

[0400] It should be noted that the description of steps 7a-13 in Embodiment 2 can refer to steps 7a-13 in Embodiment 1, and will not be repeated here.

[0401] Example 3:

[0402] In the distributed NAS architecture of this embodiment, the NF triggers the establishment of the data tunnel required for the corresponding service. During the process of sending messages to the RAN node, the NF requests the AMF to allocate a tunnel identifier.

[0403] AMF (Automatic Method Configuration) assigns tunnel identifiers, ensuring the uniqueness of each tunnel identifier within the range corresponding to each UE. Furthermore, the tunnel identifier assignment process is embedded within the service interaction process, eliminating the need for dedicated tunnel identifier assignment signaling and reducing the amount of signaling required.

[0404] See Figure 10 The specific steps are as follows:

[0405] It should be noted that steps 1-5 in Embodiment 3 can refer to steps 1-5 in Embodiment 1, and will not be repeated here.

[0406] Optionally, if the NF determines that the UE's first service still requires the establishment of a first tunnel, then proceed to step 5a.

[0407] Example 3 follows a similar mechanism to Example 2, where the NF requests the AMF to allocate a tunnel identifier. The difference lies in that the NF requests the AMF to allocate a tunnel identifier during the process of sending a message to the RAN node.

[0408] Step 5a: NF sends a tunnel establishment request message to the business data processing function.

[0409] Optionally, the tunnel establishment request message can also be called the Nx session user plane request (Nx session UPrequest) message.

[0410] Optionally, the tunnel establishment request message may also carry at least one of the following pieces of information:

[0411] 1) The terminal's second identifier;

[0412] Optionally, the terminal's second identifier includes, but is not limited to, at least one of the following: IMSI, SUPI, or other globally unique UE identifiers; 2) QoS information of the first tunnel.

[0413] Step 5b: The service data processing function allocates information for the first tunnel used for uplink transmission.

[0414] The description of step 5b in Example 3 can be found in step 7b in Example 1.

[0415] Step 5c: The service data processing function sends a tunnel establishment response message to the NF. The tunnel establishment response message includes information about the first tunnel used for uplink transmission.

[0416] Step 6: The NF sends the first message to the AMF. The first message is used by the NF to forward information to the RAN node through the AMF.

[0417] Optionally, the first message includes a fifth message, which is used to request the AMF to allocate a tunnel identifier and send the tunnel identifier to the RAN node.

[0418] Optionally, the first message packet may also include information sent by the NF to the RAN node (NF to RAN message), and the AMF may choose not to parse the information sent by the NF to the RAN node.

[0419] Optionally, the information sent by the NF to the RAN node includes, but is not limited to, at least one of the following:

[0420] 1) Information about the first tunnel obtained by NF for uplink transmission;

[0421] 2) QoS information for the first tunnel;

[0422] Optionally, the QoS information of the first tunnel is used by the RAN node to allocate resources for the first tunnel.

[0423] 3) Information in NF;

[0424] Optionally, the NF information is used by the RAN to obtain information about the NF.

[0425] Optionally, the information of the NF includes, but is not limited to, at least one of the following: the NF ID, the NF IP address, the NF port number, etc.

[0426] 4) The identifier assigned to the UE by the NF;

[0427] Optionally, the identifier assigned by the NF to the UE includes, but is not limited to, at least one of the following: NF ID + NF UE ID, or NFUE NxAP ID, etc.

[0428] Optionally, the first message may also include information sent by the NF to the AMF.

[0429] Optionally, the information sent by the NF to the AMF includes, but is not limited to, at least one of the following:

[0430] 1) The fifth piece of information (i.e., the tunnel identifier request indication) is used to indicate that the AMF is requested to allocate a tunnel identifier for the UE;

[0431] 2) The terminal's second identifier, optionally, includes, but is not limited to, at least one of the following: IMSI, SUPI, or other globally unique UE identifiers;

[0432] 3) Information about the NF, including but not limited to at least one of the following: the ID of the NF, the type of the NF;

[0433] 4) Type information of the first business.

[0434] Step 7: The AMF assigns a tunnel identifier to the UE indicated by the NF.

[0435] Optionally, the meaning and granularity of the tunnel identifier are as described in Example 2.

[0436] Step 8: The AMF sends a third message to the RAN. The third message is used by the AMF to forward information from the NF to the RAN.

[0437] Optionally, the third message includes second information, which includes at least one of the following: the information sent by the NF to the RAN (NF to RAN message), the identifier corresponding to the UE on the interface between the AMF and RAN nodes, and the tunnel identifier allocated by the AMF;

[0438] Optionally, the identifier corresponding to the UE on the interface between AMF-RAN nodes includes, but is not limited to, at least one of the following: RANUE NgAP ID, or RAN UE NgAP ID + AMF UE NgAP ID, etc.

[0439] Step 9: The RAN node determines the first tunnel to be established based on the UE's first identifier and the tunnel identifier.

[0440] The description of step 9 in Example 3 can be found in step 9 of Example 1, and will not be repeated here.

[0441] Step 10: The RAN node sends a fourth message to the AMF. The fourth message is used by the RAN node to send feedback information to the NF through the AMF.

[0442] Optionally, the fourth message may include a fourth piece of information, which may include, but is not limited to, information sent by the RAN node to the NF (RAN to NF message). The AMF may choose not to parse the information sent by the RAN node to the NF.

[0443] Optionally, the information sent by the RAN to the NF (RAN to NF message) includes, but is not limited to, at least one of the following:

[0444] 1) The UE's fourth identifier;

[0445] Optionally, the UE's fourth identifier includes at least one of the following:

[0446] a) The identifier assigned to the UE by the NF;

[0447] Optionally, the identifier assigned by the NF to the UE includes, but is not limited to, at least one of the following: NF ID + NF UE ID, or NFUE NxAP ID (on the RAN-NF interface);

[0448] b) The identifier assigned to the UE by the RAN;

[0449] Optionally, the identifier assigned by the RAN to the UE includes, but is not limited to, at least one of the following: RAN ID + NF UE ID, or RAN UE NxAP ID (on the RAN-NF interface);

[0450] 2) Information used to instruct the RAN to accept or reject the tunnel identifier;

[0451] 3) Downward information of the first tunnel.

[0452] Optionally, the fourth message may also include information sent by the RAN node to the AMF (RAN to AMF message).

[0453] Optionally, the information sent by the RAN node to the AMF may include the identifier corresponding to the UE on the interface between the AMF and the RAN node.

[0454] Optionally, the identifier corresponding to the UE on the interface between AMF-RAN nodes includes, but is not limited to, at least one of the following: RANUE NgAP ID, or RAN UE NgAP ID + AMF UE NgAP ID.

[0455] Step 11: The AMF sends a fifth message to the NF, which includes at least one of the following: the terminal's second identifier, the tunnel identifier assigned by the AMF, the downlink information of the first tunnel, and the information sent by the RAN node to the NF (RAN to NF message).

[0456] Step 11a: Optionally, the NF initiates a tunnel modification request message to the service data processing function to indicate the downlink information of the first tunnel received from the RAN node.

[0457] Optionally, the tunnel modification request message includes, but is not limited to, at least one of the following: the terminal's second identifier, the tunnel identifier, and the downlink information of the first tunnel.

[0458] In step 11a, the NF can send the tunnel identifier received from the AMF to the service data processing function. This facilitates the subsequent service data processing function in associating the tunnel identifier, the information of the first tunnel used for uplink transmission, and the downlink information of the first tunnel.

[0459] Step 11b: The service data processing function binds the relationship between the information of the first tunnel used for uplink transmission and the downlink information of the first tunnel, or binds the relationship between the information of the first tunnel used for uplink transmission, the downlink information of the first tunnel, and the tunnel identifier.

[0460] Step 12: Optionally, the NF sends an NF NAS message to the RAN.

[0461] Optionally, NF NAS messages include, but are not limited to, at least one of the following:

[0462] 1) Session identifier;

[0463] 2) Tunnel signage;

[0464] 3) QoS information of the first tunnel.

[0465] Optionally, step 12 can be combined with step 8 and executed simultaneously, or steps 8 and 12 can be executed separately. When executed separately, the order of steps 8 and 12 is not specifically limited.

[0466] Optionally, step 12 includes either step 12a or step 12b, in which the NF sends an NFNAS message to the RAN node via the AMF. In step 12b, the NF sends an NF NAS message directly to the RAN node.

[0467] Step 13: During the process of the RAN node forwarding the NF NAS message to the UE, the tunnel identifier assigned by the AMF is sent to the UE.

[0468] Optionally, the tunnel identifier sent by the RAN node to the UE in step 13 may be the tunnel identifier received by the RAN node from the AMF in step 8; or it may be the tunnel identifier received by the RAN node from the AMF in step 12a.

[0469] It should be noted that the core network elements involved in the above embodiments one, two and three, such as AMF, NF, service data processing function, PCF and UDM, can be core network elements in the 5G mobile communication system, or core network elements in new communication systems (such as 6G mobile communication systems) in the future development of communication.

[0470] See Figure 11 The embodiments of this application provide a transmission processing device applied to a wireless network access node. The device 1100 includes: a first transceiver unit 1101 and a first processing unit 1102.

[0471] The first processing unit 1102 is configured to perform a first operation, the first operation including at least one of the following:

[0472] Receive first information from the first network element, the first information including a tunnel identifier allocated by the first network element or the second network element;

[0473] Receive second information from the second network element, the second information including the tunnel identifier allocated by the second network element;

[0474] The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0475] In one embodiment of this application, the first processing unit 1102 is further configured to determine the first tunnel based on the tunnel identifier.

[0476] In one embodiment of this application, the first processing unit 1102 is further configured to determine the first tunnel based on the tunnel identifier and the first identifier of the terminal or the identifier of the first network element.

[0477] Optionally, the first identifier of the terminal includes at least one of the following: an identifier assigned to the terminal by the first network element, or an identifier corresponding to the terminal on the interface between the wireless access network node and the second network element.

[0478] In one embodiment of this application, the first processing unit 1102 is further configured to establish the first tunnel according to at least one of the following operations:

[0479] Allocate the air interface resources required for the first tunnel;

[0480] Allocate information for the first tunnel used for downlink transmission;

[0481] Initiate the establishment of an air interface tunnel corresponding to the first tunnel to the terminal.

[0482] In one embodiment of this application, receiving first information from a first network element includes at least one of the following:

[0483] Receive the first information from the first network element forwarded by the second network element;

[0484] The first information is received directly from the first network element;

[0485] The first information is used to instruct the wireless access network node to establish the first tunnel for the terminal.

[0486] In one embodiment of this application, the first information further includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier corresponding to the terminal on the interface between the wireless access network node and the second network element, information of the first tunnel for uplink transmission, and QoS information of the first tunnel.

[0487] In one embodiment of this application, the first transceiver unit 1101 is further configured to: send third information to the first network element through the second network element; or send third information directly to the first network element device.

[0488] The third information is used in response to the first information.

[0489] In one embodiment of this application, the third information includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, an identifier corresponding to the terminal on the interface between the radio access network device and the second network element, information for instructing the radio access network node to accept or reject the tunnel identifier, and information for the first tunnel for downlink transmission.

[0490] In one embodiment of this application, the second information further includes at least one of the following: information sent by the first network element to the radio access network node, and the identifier corresponding to the terminal on the interface between the radio access network node and the second network element.

[0491] In one embodiment of this application, the information sent by the first network element to the radio access network node includes at least one of the following: information about the first tunnel used for uplink transmission, QoS information of the first tunnel, information about the first network element, and an identifier assigned by the first network element to the terminal.

[0492] In one embodiment of this application, the first transceiver unit 1101 is further configured to send fourth information to the second network element, the fourth information being used to respond to the second information;

[0493] The fourth information includes at least one of the following: information sent by the wireless access network node to the first network element, and information sent by the wireless access network node to the second network element.

[0494] In one embodiment of this application, the information sent by the radio access network node to the first network element includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, information for instructing the radio access network device to accept or reject the tunnel identifier, and information about the first tunnel for downlink transmission.

[0495] In one embodiment of this application, the information sent by the wireless access network node to the second network element includes: the identifier corresponding to the terminal on the interface between the wireless access network node and the second network element.

[0496] In one embodiment of this application, the information of the first tunnel for uplink transmission includes at least one of the following:

[0497] The address information of the first network element;

[0498] The port number information of the first network element;

[0499] The first network element is the tunnel endpoint identifier (TEID) assigned to the first tunnel.

[0500] In one embodiment of this application, the first tunnel is used for data transmission of a first service between the terminal and the network, including:

[0501] The first tunnel is used for the terminal and the third network element to transmit the data of the first service, and the third network element is used to process the data of the first service;

[0502] The third network element may be the same as or different from the first network element.

[0503] In one embodiment of this application, the information of the first tunnel for uplink transmission includes at least one of the following:

[0504] The address information of the third network element;

[0505] The port number information of the third network element;

[0506] The third network element is the TEID assigned to the first tunnel.

[0507] In one embodiment of this application, the information of the first tunnel for downlink transmission includes at least one of the following:

[0508] The address information of the wireless access network node;

[0509] The port number information of the wireless access network node;

[0510] The wireless access network node is the TEID assigned to the first tunnel.

[0511] In one embodiment of this application, the tunnel identifier is unique within at least one of the following ranges:

[0512] The range corresponding to the terminal;

[0513] The range corresponding to the first network element;

[0514] The scope corresponding to the first service.

[0515] The apparatus provided in this application embodiment can achieve... Figure 4 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0516] See Figure 12 The embodiments of this application provide a transmission processing apparatus applied to a first network element. The apparatus 1200 includes: a second transceiver unit 1201 and a second processing unit 1202.

[0517] The second processing unit 1202 is used to perform a second operation, which includes at least one of the following:

[0518] Send first information to the wireless access network node, the first information including a tunnel identifier assigned by the first network element or the second network element;

[0519] Send a first message to the second network element, the first message including fifth information, the fifth information being used to request the second network element to allocate a tunnel identifier, and send the tunnel identifier to the radio access network node;

[0520] The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0521] In one embodiment of this application, the second processing unit 1202 is further configured to obtain the tunnel identifier.

[0522] In one embodiment of this application, the second processing unit 1202 is further configured to allocate the tunnel identifier; or request the tunnel identifier allocated by the second network element.

[0523] In one embodiment of this application, the second transceiver unit 1201 is further configured to send a second message to the second network element, the second message being used to request the second network element to allocate the tunnel identifier.

[0524] The second message includes at least one of the following: the second identifier of the terminal, the information of the first network element, and the type information of the first service.

[0525] In one embodiment of this application, the second transceiver unit 1201 is further configured to send sixth information to the third network element, the sixth information being used to request information about the first tunnel for uplink transmission; and to receive information about the first tunnel for uplink transmission sent by the third network element.

[0526] The third network element may be the same as or different from the first network element.

[0527] In one embodiment of this application, the sixth information includes at least one of the following: the second identifier of the terminal, the tunnel identifier, and the QoS information of the first tunnel.

[0528] In one embodiment of this application, sending first information to a wireless access network node includes at least one of the following:

[0529] The first information is sent to the wireless access network node through the second network element;

[0530] The first information is sent directly to the wireless access network node;

[0531] The first information is used to instruct the wireless access network node to establish the first tunnel for the terminal.

[0532] In one embodiment of this application, the first information further includes: an identifier assigned to the terminal by the first network element, an identifier corresponding to the terminal on the interface between the wireless access network node and the second network element, information of the first tunnel used for uplink transmission, and QoS information of the first tunnel.

[0533] In one embodiment of this application, the second transceiver unit 1201 is further used for at least one of the following:

[0534] Receive the third information from the radio access network node forwarded by the second network element;

[0535] Receive third information directly from the wireless access network node;

[0536] The third information is used in response to the first information.

[0537] In one embodiment of this application, the third information includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, an identifier corresponding to the terminal on the interface between the radio access network device and the second network element, information for instructing the radio access network node to accept or reject the tunnel identifier, and information for the first tunnel for downlink transmission.

[0538] In one embodiment of this application, the first message further includes at least one of the following: information sent by the first network element to the radio access network node, and information sent by the first network element to the second network element.

[0539] In one embodiment of this application, the information sent by the first network element to the radio access network node includes at least one of the following: information about the first tunnel used for uplink transmission, QoS information of the first tunnel, information about the first network element, and an identifier assigned by the first network element to the terminal.

[0540] In one embodiment of this application, the information sent by the first network element to the second network element includes at least one of the following: the fifth information, the second identifier of the terminal, the information of the first network element, and the type information of the first service.

[0541] In one embodiment of this application, the second transceiver unit 1201 is further used for at least one of the following:

[0542] Receive information sent by the wireless access network node to the first network element;

[0543] Send to the third network element at least one of the following: the terminal's second identifier, the information of the first tunnel for uplink transmission, the information of the first tunnel for downlink transmission, and the tunnel identifier.

[0544] In one embodiment of this application, the information sent by the radio access network node to the first network element includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, information for instructing the radio access network device to accept or reject the tunnel identifier, and information about the first tunnel for downlink transmission.

[0545] In one embodiment of this application, the information of the first tunnel for downlink transmission includes at least one of the following:

[0546] The address information of the wireless access network node;

[0547] The port number information of the wireless access network node;

[0548] The wireless access network node is the TEID assigned to the first tunnel.

[0549] In one embodiment of this application, the information of the first tunnel for uplink transmission includes at least one of the following:

[0550] The address information of the first network element;

[0551] The port number information of the first network element;

[0552] The first network element is the TEID allocated to the first tunnel.

[0553] In one embodiment of this application, the first tunnel is used for data transmission of a first service between the terminal and the network, including:

[0554] The first tunnel is used for data transmission of the first service between the terminal and the third network element, and the third network element is used to process the data of the first service.

[0555] The third network element may be the same as or different from the first network element.

[0556] In one embodiment of this application, the information of the first tunnel for uplink transmission includes at least one of the following:

[0557] The address information of the third network element;

[0558] The port number information of the third network element;

[0559] The third network element is the TEID assigned to the first tunnel.

[0560] In one embodiment of this application, the tunnel identifier is unique within at least one of the following ranges:

[0561] The range corresponding to the terminal;

[0562] The range corresponding to the first network element;

[0563] The scope corresponding to the first service.

[0564] The apparatus provided in this application embodiment can achieve... Figure 5 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0565] See Figure 13 The embodiments of this application provide a transmission processing apparatus applied to a second network element. The apparatus 1300 includes a third transceiver unit 1301 and a third processing unit 1302.

[0566] The third processing unit 1302 is used to perform a third operation, which includes at least one of the following:

[0567] Forward first information from the first network element to the wireless access network node, the first information including a tunnel identifier allocated by the first network element or the second network element;

[0568] Send second information to the wireless access network node, the second information including the tunnel identifier allocated by the second network element;

[0569] The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

[0570] In one embodiment of this application, the third transceiver unit 1301 is used to receive a second message sent by the first network element, the second message being used to request the second network element to allocate the tunnel identifier;

[0571] The third processing unit 1302 is also configured to allocate the tunnel identifier according to the second message.

[0572] In one embodiment of this application, the second message includes at least one of the following: the second identifier of the terminal, the information of the first network element, and the type information of the first service.

[0573] In one embodiment of this application, the third transceiver unit 1301 is further configured to receive a first message sent by the first network element, the first message including fifth information, the fifth information being used to request the second network element to allocate a tunnel identifier, and to send the tunnel identifier to the radio access network node;

[0574] The third processing unit 1302 assigns the tunnel identifier according to the first message.

[0575] In one embodiment of this application, the first message further includes at least one of the following: information sent by the first network element to the radio access network node, and information sent by the first network element to the second network element.

[0576] In one embodiment of this application, the second information further includes at least one of the following: information sent by the first network element to the radio access network node, and the identifier corresponding to the terminal on the interface between the radio access network node and the second network element.

[0577] In one embodiment of this application, the information sent by the first network element to the radio access network node includes at least one of the following: information about the first tunnel used for uplink transmission, QoS information of the first tunnel, information about the first network element, and an identifier assigned by the first network element to the terminal.

[0578] In one embodiment of this application, the information sent by the first network element to the second network element includes at least one of the following: the fifth information, the second identifier of the terminal, the information of the first network element, and the type information of the first service.

[0579] In one embodiment of this application, the third transceiver unit 1301 is further used for at least one of the following:

[0580] Receive third information sent by the wireless access network node, the third information being used in response to the first information;

[0581] The information sent by the wireless access network node to the first network element is transmitted to the first network element.

[0582] In one embodiment of this application, the third information includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, an identifier corresponding to the terminal on the interface between the radio access network device and the second network element, information for instructing the radio access network node to accept or reject the tunnel identifier, and information for the first tunnel for downlink transmission.

[0583] In one embodiment of this application, the first information further includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier corresponding to the terminal on the interface between the wireless access network node and the second network element, information of the first tunnel for uplink transmission, and QoS information of the first tunnel.

[0584] The apparatus provided in this application embodiment can achieve... Figure 6 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0585] like Figure 14 As shown in the illustration, this application also provides a communication device 1400, including a processor 1401 and a memory 1402. The memory 1402 stores programs or instructions that can run on the processor 1401. For example, when the communication device 1400 is a wireless access network node, the program or instructions executed by the processor 1401 implement the above-mentioned... Figure 4 The various steps of the method embodiment shown can achieve the same technical effect. When the communication device 1400 is a core network element, the above-described procedure or instruction is executed by the processor 1401. Figure 5 or Figure 6 The steps of the method embodiment shown are the same and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0586] This application embodiment also provides a wireless access network node, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 4The steps of the method embodiment shown are illustrated. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0587] Specifically, embodiments of this application also provide a wireless access network node, which can be... Figure 11 The communication processing device shown. (For example...) Figure 15 As shown, the wireless access network node 1500 includes: an antenna 1501, a radio frequency (RF) device 1502, a baseband device 1503, a processor 1504, and a memory 1505. The antenna 1501 is connected to the RF device 1502. In the uplink direction, the RF device 1502 receives information through the antenna 1501 and transmits the received information to the baseband device 1503 for processing. In the downlink direction, the baseband device 1503 processes the information to be transmitted and sends it to the RF device 1502. The RF device 1502 processes the received information and transmits it through the antenna 1501.

[0588] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1503, which includes a baseband processor.

[0589] The baseband device 1503 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 15 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1505 via a bus interface to call the program in the memory 1505 and execute the network device operation shown in the above method embodiment.

[0590] The network-side device may also include a network interface 1506, such as a Common Public Radio Interface (CPRI).

[0591] Specifically, the network-side device 1500 in this application embodiment further includes: instructions or programs stored in memory 1505 and executable on processor 1504, wherein processor 1504 calls the instructions or programs in memory 1505 to execute. Figure 11 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0592] It is understood that the implementation process of each implementation method mentioned in this embodiment can be referred to Figure 4 The relevant descriptions of the method embodiments shown herein, which achieve the same or corresponding technical effects, will not be repeated here to avoid duplication.

[0593] Specifically, embodiments of this application also provide a core network element. For example... Figure 16 As shown, the core network element 1600 includes: a processor 1601, a network interface 1602, and a memory 1603. This core network element can be... Figure 12 or Figure 13 The device shown. The network interface 1602 is, for example, a Common Public Radio Interface (CPRI).

[0594] Specifically, the core network element 1600 in this application embodiment further includes: instructions or programs stored in memory 1603 and executable on processor 1601, wherein processor 1601 calls the instructions or programs in memory 1603 to execute. Figure 12 or Figure 13 The methods executed by each unit shown achieve the same technical effect, and will not be elaborated here to avoid repetition.

[0595] This application embodiment also provides a readable storage medium storing a program or instructions that, when executed by a processor, implement the above-described functionality. Figure 4 or Figure 5 or Figure 6 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0596] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0597] This application embodiment also provides a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the above. Figure 4 or Figure 5 or Figure 6 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0598] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0599] This application embodiment also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the above. Figure 4 or Figure 5 or Figure 6 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0600] This application also provides a wireless communication system, including: a wireless access network node and a core network element, wherein the wireless access network node can be used to perform the functions provided in this application. Figure 4 The steps of the method shown are provided in the core network, which can be used to perform the actions described in the embodiments of this application. Figure 5 or Figure 6 The steps of the method shown.

[0601] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0602] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0603] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A transmission processing method, characterized in that, include: The wireless access network node performs a first operation, which includes at least one of the following: Receive first information from the first network element, the first information including a tunnel identifier allocated by the first network element or the second network element; Receive second information from the second network element, the second information including the tunnel identifier allocated by the second network element; The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

2. The method according to claim 1, characterized in that, The method further includes: The wireless access network node determines the first tunnel based on the tunnel identifier and the first identifier of the terminal or the identifier of the first network element.

3. The method according to claim 1 or 2, characterized in that, The method further includes: The wireless access network node establishes the first tunnel by performing at least one of the following operations: Allocate the air interface resources required for the first tunnel; Allocate information for the first tunnel used for downlink transmission; Initiate the establishment of an air interface tunnel corresponding to the first tunnel to the terminal.

4. The method according to any one of claims 1 to 3, characterized in that, Receive first information from the first network element, including at least one of the following: Receive the first information from the first network element forwarded by the second network element; The first information is received directly from the first network element; The first information is used to instruct the wireless access network node to establish the first tunnel for the terminal.

5. The method according to claim 1, characterized in that, The first information also includes at least one of the following: the identifier assigned to the terminal by the first network element, the identifier corresponding to the terminal on the interface between the wireless access network node and the second network element, the information of the first tunnel for uplink transmission, and the QoS information of the first tunnel.

6. The method according to any one of claims 1 to 5, characterized in that, The method further includes at least one of the following: The wireless access network node sends third information to the first network element through the second network element; The wireless access network node directly sends the third information to the first network element device; The third information is used in response to the first information.

7. The method according to claim 6, characterized in that, The third information includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, an identifier corresponding to the terminal on the interface between the radio access network device and the second network element, information for instructing the radio access network node to accept or reject the tunnel identifier, and information for the first tunnel for downlink transmission.

8. The method according to any one of claims 1 to 7, characterized in that, The second information also includes at least one of the following: information sent by the first network element to the radio access network node, and the identifier corresponding to the terminal on the interface between the radio access network node and the second network element.

9. The method according to claim 8, characterized in that, The information sent by the first network element to the radio access network node includes at least one of the following: information about the first tunnel for uplink transmission, QoS information of the first tunnel, information about the first network element, and an identifier assigned by the first network element to the terminal.

10. The method according to claim 1, 2, 3, 8, or 9, characterized in that, The method further includes: The wireless access network node sends a fourth message to the second network element, the fourth message being used to respond to the second message; The fourth information includes at least one of the following: information sent by the wireless access network node to the first network element, and information sent by the wireless access network node to the second network element.

11. The method according to claim 10, characterized in that, The information sent by the radio access network node to the first network element includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, information for instructing the radio access network device to accept or reject the tunnel identifier, and information about the first tunnel for downlink transmission.

12. The method according to claim 10, characterized in that, The information sent by the wireless access network node to the second network element includes: the identifier corresponding to the terminal on the interface between the wireless access network node and the second network element.

13. The method according to claim 5 or 9, characterized in that, The information of the first tunnel used for uplink transmission includes at least one of the following: The address information of the first network element; The port number information of the first network element; The first network element is the tunnel endpoint identifier (TEID) assigned to the first tunnel.

14. The method according to claim 1, 5, or 9, characterized in that, The first tunnel is used for data transmission of a first service between the terminal and the network, including: The first tunnel is used for the terminal and the third network element to transmit the data of the first service, and the third network element is used to process the data of the first service; The third network element may be the same as or different from the first network element.

15. The method according to claim 14, characterized in that, The information of the first tunnel used for uplink transmission includes at least one of the following: The address information of the third network element; The port number information of the third network element; The third network element is the TEID assigned to the first tunnel.

16. The method according to claim 3, 8, or 12, characterized in that, The information of the first tunnel used for downlink transmission includes at least one of the following: The address information of the wireless access network node; The port number information of the wireless access network node; The wireless access network node is the TEID assigned to the first tunnel.

17. The method according to any one of claims 1 to 16, characterized in that, The tunnel identifier is unique within at least one of the following ranges: The range corresponding to the terminal; The range corresponding to the first network element; The scope corresponding to the first service.

18. A transmission processing method, characterized in that, include: The first network element performs a second operation, which includes at least one of the following: Send first information to the wireless access network node, the first information including a tunnel identifier assigned by the first network element or the second network element; A first message is sent to the second network element, the first message including fifth information, the fifth information being used to request the second network element to allocate a tunnel identifier and send the tunnel identifier to the radio access network node; wherein, the tunnel identifier is used to determine a first tunnel, the first tunnel being used for data transmission of a first service between the terminal and the network, the first network element providing the terminal with control functions related to the first service, and the second network element providing the terminal with at least one function of mobility management or access management.

19. The method according to claim 18, characterized in that, When the first network element sends the first information to the wireless access network node, the method further includes: The first network element obtains the tunnel identifier.

20. The method according to claim 19, characterized in that, The first network element acquires the tunnel identifier, including: The first network element assigns the tunnel identifier; or The first network element requests the second network element to allocate the tunnel identifier.

21. The method according to claim 20, characterized in that, The first network element requests the second network element to allocate the tunnel identifier, including: The first network element sends a second message to the second network element, the second message being used to request the second network element to allocate the tunnel identifier; The second message includes at least one of the following: the second identifier of the terminal, the information of the first network element, and the type information of the first service.

22. The method according to any one of claims 18 to 21, characterized in that, The method further includes: The first network element sends a sixth message to the third network element, the sixth message being used to request information about the first tunnel for uplink transmission; The first network element receives the information of the first tunnel for uplink transmission sent by the third network element; The third network element may be the same as or different from the first network element.

23. The method according to claim 22, characterized in that, The sixth piece of information includes at least one of the following: the second identifier of the terminal, the tunnel identifier, and the QoS information of the first tunnel.

24. The method according to any one of claims 18 to 23, characterized in that, The first network element sends first information to the wireless access network node, including at least one of the following: The first network element sends the first information to the wireless access network node through the second network element; The first network element directly sends the first information to the wireless access network node; The first information is used to instruct the wireless access network node to establish the first tunnel for the terminal.

25. The method according to claim 18, characterized in that, The first information also includes: the identifier assigned to the terminal by the first network element, the identifier corresponding to the terminal on the interface between the wireless access network node and the second network element, the information of the first tunnel used for uplink transmission, and the QoS information of the first tunnel.

26. The method according to any one of claims 18 to 25, characterized in that, When the first network element sends the first information to the wireless access network node, the method further includes at least one of the following: The first network element receives third information from the radio access network node forwarded by the second network element; The first network element directly receives the third information from the wireless access network node; The third information is used in response to the first information.

27. The method according to claim 26, characterized in that, The third information includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, an identifier corresponding to the terminal on the interface between the radio access network device and the second network element, information for instructing the radio access network node to accept or reject the tunnel identifier, and information for the first tunnel for downlink transmission.

28. The method according to claim 18, characterized in that, The first message also includes at least one of the following: information sent by the first network element to the radio access network node, and information sent by the first network element to the second network element.

29. The method according to claim 28, characterized in that, The information sent by the first network element to the radio access network node includes at least one of the following: information about the first tunnel for uplink transmission, QoS information of the first tunnel, information about the first network element, and an identifier assigned by the first network element to the terminal.

30. The method according to claim 28, characterized in that, The information sent by the first network element to the second network element includes at least one of the following: the fifth information, the second identifier of the terminal, the information of the first network element, and the type information of the first service.

31. The method according to claim 18, 22, 28, 29, or 30, characterized in that, The method further includes at least one of the following: The first network element receives information sent to it by the wireless access network node. The first network element sends at least one of the following to the third network element: the second identifier of the terminal, information of the first tunnel for uplink transmission, information of the first tunnel for downlink transmission, and the tunnel identifier.

32. The method according to claim 31, characterized in that, The information sent by the radio access network node to the first network element includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, information for instructing the radio access network device to accept or reject the tunnel identifier, and information about the first tunnel for downlink transmission.

33. The method according to claim 27, 31, or 32, characterized in that, The information of the first tunnel used for downlink transmission includes at least one of the following: The address information of the wireless access network node; The port number information of the wireless access network node; The wireless access network node is the TEID assigned to the first tunnel.

34. The method according to claim 22, 25, 29, or 31, characterized in that, The information of the first tunnel used for uplink transmission includes at least one of the following: The address information of the first network element; The port number information of the first network element; The first network element is the TEID allocated to the first tunnel.

35. The method according to claim 18, 22, 25, 29, or 31, characterized in that, The first tunnel is used for data transmission of a first service between the terminal and the network, including: The first tunnel is used for data transmission of the first service between the terminal and the third network element, and the third network element is used to process the data of the first service. The third network element may be the same as or different from the first network element.

36. The method according to claim 35, characterized in that, The information of the first tunnel used for uplink transmission includes at least one of the following: The address information of the third network element; The port number information of the third network element; The third network element is the TEID assigned to the first tunnel.

37. The method according to any one of claims 18 to 36, characterized in that, The tunnel identifier is unique within at least one of the following ranges: The range corresponding to the terminal; The range corresponding to the first network element; The scope corresponding to the first service.

38. A transmission processing method, characterized in that, include: The second network element performs a third operation, which includes at least one of the following: Forward first information from the first network element to the wireless access network node, the first information including a tunnel identifier allocated by the first network element or the second network element; Send second information to the wireless access network node, the second information including the tunnel identifier allocated by the second network element; The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

39. The method according to claim 38, characterized in that, If the third operation includes forwarding first information from the first network element to the radio access network node, the method further includes: The second network element receives a second message sent by the first network element, the second message being used to request the second network element to allocate the tunnel identifier; The second network element allocates the tunnel identifier according to the second message.

40. The method according to claim 39, characterized in that, The second message includes at least one of the following: the second identifier of the terminal, the information of the first network element, and the type information of the first service.

41. The method according to claim 38, characterized in that, If the third operation includes sending second information to the radio access network node, the method further includes: The second network element receives a first message sent by the first network element. The first message includes fifth information, which is used to request the second network element to allocate a tunnel identifier and send the tunnel identifier to the radio access network node. The second network element allocates the tunnel identifier according to the first message.

42. The method according to claim 41, characterized in that, The first message also includes at least one of the following: information sent by the first network element to the radio access network node, and information sent by the first network element to the second network element.

43. The method according to any one of claims 38 to 42, characterized in that, The second information also includes at least one of the following: information sent by the first network element to the radio access network node, and the identifier corresponding to the terminal on the interface between the radio access network node and the second network element.

44. The method according to claim 42 or 43, characterized in that, The information sent by the first network element to the wireless access network node includes at least one of the following: information about the first tunnel used for uplink transmission, QoS information of the first tunnel, information about the first network element, and an identifier assigned by the first network element to the terminal.

45. The method according to claim 42 or 43, characterized in that, The information sent by the first network element to the second network element includes at least one of the following: the fifth information, the second identifier of the terminal, the information of the first network element, and the type information of the first service.

46. ​​The method according to any one of claims 38 to 45, characterized in that, The method further includes at least one of the following: The second network element receives third information sent by the wireless access network node, the third information being used to respond to the first information; The second network element sends the information sent by the wireless access network node to the first network element.

47. The method according to claim 46, characterized in that, The third information includes at least one of the following: an identifier assigned to the terminal by the first network element, an identifier assigned to the terminal by the radio access network node, an identifier corresponding to the terminal on the interface between the radio access network device and the second network element, information for instructing the radio access network node to accept or reject the tunnel identifier, and information for the first tunnel for downlink transmission.

48. The method according to any one of claims 35 to 47, characterized in that, The first information also includes at least one of the following: the identifier assigned to the terminal by the first network element, the identifier corresponding to the terminal on the interface between the wireless access network node and the second network element, the information of the first tunnel used for uplink transmission, and the QoS information of the first tunnel.

49. A transmission processing apparatus, characterized in that, include: First transceiver unit and first processing unit; The first processing unit is configured to perform a first operation, the first operation including at least one of the following: Receive first information from the first network element, the first information including a tunnel identifier allocated by the first network element or the second network element; Receive second information from the second network element, the second information including the tunnel identifier allocated by the second network element; The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

50. The apparatus according to claim 49, characterized in that, The first processing unit is further configured to determine the first tunnel based on the tunnel identifier and the first identifier of the terminal or the identifier of the first network element.

51. A transmission processing apparatus, characterized in that, include: Second transceiver unit and second processing unit; The second processing unit is used to perform a second operation, the second operation including at least one of the following: Send first information to the wireless access network node, the first information including a tunnel identifier assigned by a first network element or a second network element; Send a first message to the second network element, the first message including fifth information, the fifth information being used to request the second network element to allocate a tunnel identifier, and send the tunnel identifier to the radio access network node; The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

52. The apparatus according to claim 51, characterized in that, The second transceiver unit is used to send a second message to the second network element, the second message being used to request the second network element to allocate the tunnel identifier; The second message includes at least one of the following: the second identifier of the terminal, the information of the first network element, and the type information of the first service.

53. A transmission processing apparatus, characterized in that, include: The third transceiver unit and the third processing unit; The third processing unit is configured to perform a third operation, which includes at least one of the following: Forward first information from the first network element to the wireless access network node, the first information including a tunnel identifier allocated by the first network element or the second network element; Send second information to the wireless access network node, the second information including the tunnel identifier allocated by the second network element; The tunnel identifier is used to identify a first tunnel, which is used for data transmission of a first service between the terminal and the network. The first network element provides the terminal with control functions related to the first service, and the second network element provides the terminal with at least one function of mobility management or access management.

54. The apparatus according to claim 53, characterized in that, The third transceiver unit is used to receive a second message sent by the first network element, the second message being used to request the second network element to allocate the tunnel identifier; The third processing unit is also configured to allocate the tunnel identifier according to the second message.

55. A wireless access network node, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the method as described in any one of claims 1 to 17.

56. A core network element, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the method as claimed in any one of claims 18 to 37, or the steps of the method as claimed in any one of claims 38 to 48.

57. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method as claimed in any one of claims 1 to 17, or the steps of the method as claimed in any one of claims 18 to 37, or the steps of the method as claimed in any one of claims 38 to 48.

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