Data transmission method and apparatus, sending node, and receiving node

Abstract

The present application relates to the technical field of communications, and discloses a data transmission method and apparatus, a sending node, and a receiving node. The data transmission method in embodiments of the present application comprises: a target protocol layer of a sending node sends a first data packet to a receiving node by means of a target bearer, wherein the target protocol layer comprises at least one of a first protocol layer of a data plane and a second protocol layer of the data plane, the first protocol layer is located on a radio resource control sub-layer, the second protocol layer is located on a layer 2 sub-layer, the target bearer is a bearer of the data plane, and the first data packet comprises at least one of a data packet generated according to control information of the data plane and a data packet generated according to data of the data plane.

Description

Data transmission method, device, sending node and receiving node

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202310707565.2 filed on June 14, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a data transmission method, device, sending node and receiving node. Background Art

[0004] With the development of mobile communication technology, more and more data are involved between communication devices, such as data for positioning, perception, computing and artificial intelligence (AI). Based on this, in the mobile communication network architecture (for example, the 6th generation (6 th A data plane is proposed in the 6G (6th Generation, 6G) network architecture, etc. The data plane may include core network data plane functions, radio access network data plane functions, and user equipment (UE) data plane functions, and has end-to-end connectivity. The data plane can be responsible for data control, such as data collection and coordination configuration, data collection configuration, and data transmission configuration. In addition, the data plane can also be responsible for functions such as data acquisition, data transmission, data preprocessing, data privacy and security, data analysis, data storage, and data services. However, in the related art, there is no corresponding solution for how to transmit data plane control information (for example, data collection and coordination configuration, data collection configuration, and data transmission configuration, etc.) and data plane data (for example, perception data, positioning data, etc.).

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a data transmission method, device, sending node and receiving node, which can provide a transmission method for data plane control information, data plane data, etc., and realize the transmission of data plane control information, data plane data, etc.

[0007] In a first aspect, a data transmission method is provided, the method comprising:

[0008] The target protocol layer of the sending node sends the first data packet to the receiving node through the target bearer;

[0009] The target protocol layer includes at least one of a first protocol layer of the data plane and a second protocol layer of the data plane, the first protocol layer is located above the wireless resource control sublayer, the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane.

[0010] In a second aspect, a data transmission device is provided, which is applied to a sending node, and includes:

[0011] A first target protocol layer, configured to send a first data packet to a receiving node via a target bearer;

[0012] The first target protocol layer is the target protocol layer of the sending node, the target protocol layer includes at least one of the first protocol layer of the data plane and the second protocol layer of the data plane, the first protocol layer is located above the radio resource control sublayer, and the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane.

[0013] According to a third aspect, a data transmission method is provided, the method comprising:

[0014] The target protocol layer of the receiving node receives the first data packet from the sending node through the target bearer;

[0015] The target protocol layer includes at least one of a first protocol layer of the data plane and a second protocol layer of the data plane, the first protocol layer is located above the wireless resource control sublayer, the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane.

[0016] In a fourth aspect, a data transmission device is provided, applied to a receiving node, the device comprising:

[0017] a second target protocol layer, configured to receive a first data packet from a sending node via a target bearer;

[0018] The second target protocol layer is the target protocol layer of the receiving node, the target protocol layer includes at least one of the first protocol layer of the data plane and the second protocol layer of the data plane, the first protocol layer is located above the radio resource control sublayer, and the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane.

[0019] In a fifth aspect, a sending node is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0020] In the sixth aspect, a sending node is provided, comprising a processor and a communication interface, wherein the communication interface is used to send a first data packet to a receiving node through a target bearer based on a target protocol layer; wherein the target protocol layer includes at least one of a first protocol layer of the data plane and a second protocol layer of the data plane, the first protocol layer is located above the wireless resource control sublayer, the second protocol layer is located above the layer 2 sublayer, the target bearer is a bearer of the data plane, and the first data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane.

[0021] In a seventh aspect, a receiving node is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the third aspect are implemented.

[0022] In an eighth aspect, a receiving node is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive a first data packet from a sending node through a target bearer based on a target protocol layer; wherein the target protocol layer includes at least one of a first protocol layer of the data plane and a second protocol layer of the data plane, the first protocol layer is located above the wireless resource control sublayer, the second protocol layer is located above the layer 2 sublayer, the target bearer is a bearer of the data plane, and the first data packet includes at least one of a data packet generated according to control information of the data plane and a data packet generated according to data of the data plane.

[0023] In the ninth aspect, a data transmission system is provided, comprising: a sending node and a receiving node, wherein the sending node can be used to execute the steps of the data transmission method as described in the first aspect, and the receiving node can be used to execute the steps of the data transmission method as described in the third aspect.

[0024] In the tenth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the third aspect are implemented.

[0025] In the eleventh aspect, a chip is provided, which includes 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 the steps of the method described in the first aspect, or to implement the steps of the method described in the third aspect.

[0026] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the third aspect.

[0027] In an embodiment of the present application, the target protocol layer of the sending node sends a first data packet to the receiving node through a target bearer; wherein, the target protocol layer includes at least one of the first protocol layer of the data plane and the second protocol layer of the data plane, the first protocol layer is located above the wireless resource control sublayer, and the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane, that is, the embodiment of the present application introduces at least one of the first protocol layer and the second protocol layer and the data plane bearer corresponding to the data plane, and then can transmit at least one of the control information of the data plane and the data of the data plane on the data plane bearer based on at least one of the first protocol layer and the second protocol layer, thereby realizing the transmission of the control information of the data plane, the data of the data plane, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0029] FIG2a is a schematic diagram of a user plane protocol stack provided in an embodiment of the present application;

[0030] FIG2 b is a schematic diagram of a control plane protocol stack provided in an embodiment of the present application;

[0031] FIG3a is a schematic diagram of a positioning protocol stack between a UE and an LMF provided in an embodiment of the present application;

[0032] FIG3 b is a schematic diagram of a positioning protocol stack between an NG RAN and an LMF according to an embodiment of the present application;

[0033] FIG4 is a flow chart of a data transmission method provided in an embodiment of the present application;

[0034] FIG5 is a schematic diagram of a data plane protocol stack between a UE and an access network device according to an embodiment of the present application;

[0035] FIG6a is a second schematic diagram of a protocol stack of a data plane between a UE and an access network device according to an embodiment of the present application;

[0036] FIG6 b is a third schematic diagram of a protocol stack of a data plane between a UE and an access network device according to an embodiment of the present application;

[0037] FIG6c is a fourth schematic diagram of a protocol stack of a data plane between a UE and an access network device according to an embodiment of the present application;

[0038] FIG7 is a flowchart of another data transmission method provided in an embodiment of the present application;

[0039] FIG8 is a schematic diagram of a data plane protocol stack between a UE, a RAN, and a CN according to an embodiment of the present application;

[0040] FIG9 is a second schematic diagram of a protocol stack of a data plane between a UE, a RAN, and a CN according to an embodiment of the present application;

[0041] FIG10 is a schematic diagram of a protocol stack of a data plane between a UE and a RAN according to an embodiment of the present application;

[0042] FIG11 is a second schematic diagram of a protocol stack of a data plane between a UE and a RAN according to an embodiment of the present application;

[0043] FIG12 is a structural diagram of a data transmission device provided in an embodiment of the present application;

[0044] FIG13 is a structural diagram of another data transmission device provided in an embodiment of the present application;

[0045] FIG14 is a structural diagram of a communication device provided in an embodiment of the present application;

[0046] FIG15 is a structural diagram of a sending node provided in an embodiment of the present application;

[0047] FIG16 is a structural diagram of a receiving node provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0049] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0050] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0051] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, 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. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. thGeneration, 6G) communication system.

[0052] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, an aircraft, a vehicle user equipment (VUE), a shipboard device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), a teller machine, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the 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 (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0053] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0054] For ease of understanding, some of the contents involved in the embodiments of this application are described below:

[0055] 1. Fifth-Generation (5G) Control Plane and User Plane Protocol Solutions

[0056] According to the definition of the control plane and user plane protocol architecture, the user plane protocol consists of the Service Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC), Media Access Control (MAC), and Physical Layer (PHY), as shown in Figure 2a. The control plane protocol consists of Radio Resource Control (RRC), PDCP, RLC, MAC, and PHY, as shown in Figure 2b.

[0057] 2. Positioning Protocol Stack

[0058] Exemplarily, the positioning protocol stack between the UE and the Location Management Function (LMF) may be as shown in FIG3a , and the positioning protocol stack between the Next Generation Radio Access Network (NG-RAN) and the LMF may be as shown in FIG3b .

[0059] 3. Data plane control function

[0060] The data plane control function described above may also be referred to as the first function. The first function is responsible for one or more of data collection coordination, data transmission configuration, data reporting configuration, and data processing configuration. Data collection coordination refers to the first function determining whether the required data is available based on received data requests and / or data subscription information, determining the data provision function that can provide the required data, and sending the data collection configuration.

[0061] Data reporting configuration involves configuring the data packet encapsulation for the data provided by the data provision function. This includes the packet length, packet length distribution, packet interval, packet transmission interval distribution, whether the data provision function encrypts the data, and whether the data provision function scrambles the data. If encryption or scrambling is used, the key and scrambling sequence must be configured.

[0062] Data transmission configuration refers to the establishment, modification, and release of data transmission channels and data transmission QoS management.

[0063] Data processing configuration refers to configuring data processing for a data processing node, including data preprocessing (such as filtering and desensitization) and data analysis. The data processing node may include at least one of a data transmission node, a data receiving node, and a second node, where the second node is a UE or network function node other than the data transmission node and the data receiving node. When the data processing node is the data transmission node that transmits the data, this data transmission and processing method is also called path-associated computing.

[0064] It should be noted that the core network data plane function, the radio access network data plane function or the UE data plane function of the embodiment of the present application can be a function in the core network, the radio access network or the UE, or it can be a node, or it can be multiple data plane related nodes. An example of multiple data plane related nodes is a data control function node, a data security and trust function node, a data warehouse function node, a data consumption function node, a data transmission function node, a data provision function node, and a data processing function node. Among them, the data control function node is such as the above-mentioned data control function; the data security and trust function node is used to support security mechanisms such as authentication, authorization, and access control, as well as to evaluate the data credibility of the data provision function and support query credibility; the data warehouse node is used to support the persistent storage and retrieval of data collected by the data plane; the data consumption function node is used to support sending data requests and receiving data responses; the data transmission function node is used to support data plane transmission of data; the data provision function node is used to provide required data; the data processing node is used for data plane data processing, including data analysis, de-redundancy, filtering and desensitization, etc.

[0065] The data transmission method provided in the embodiments of the present application is described in detail below through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0066] Please refer to FIG4 , which is a flowchart of a data transmission method provided in an embodiment of the present application. The method can be executed by a sending node, as shown in FIG4 , and includes the following steps:

[0067] Step 401: The target protocol layer of the sending node sends a first data packet to the receiving node through the target bearer;

[0068] The target protocol layer includes at least one of a first protocol layer of the data plane and a second protocol layer of the data plane, the first protocol layer is located above the wireless resource control sublayer, the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane.

[0069] Exemplarily, the transmitting node may be one of a terminal and a radio access network node. The receiving node may be the other of the terminal and the radio access network node. The radio access network node may include a radio access network device or a radio access network function. The radio access network function may, for example, include a centralized unit-control plane (CU-CP), an optimizing network (SON) function, a minimization of drive test (MDT) function, and the like.

[0070] The radio resource control sublayer (Sublayer) is a radio resource control protocol for the radio interface between the UE and a radio access network device or radio access network node. The radio resource control sublayer is terminated in a radio access network node on the network side. The main services and functions of the radio resource control sublayer on the radio interface between the UE and the radio access network node include system information broadcast, access control, mobility management, and the establishment, maintenance, and release of radio connections between the UE and the radio access network node. For example, as shown in Figure 5, in the NR protocol, the radio resource control sublayer can be the RRC sublayer of the radio interface between the UE and the NG-RAN.

[0071] The first protocol layer may perform a first process on data transmitted to the first protocol layer (hereinafter referred to as the first protocol layer data) based on the configuration, wherein the first process may include at least one of interpreting the data and forwarding the data to a target node. Exemplarily, forwarding the data to the target node may include the first protocol layer not parsing the first protocol layer data and directly forwarding the first protocol layer data to the target node according to the configuration information, or the first protocol layer only parsing a portion of the first protocol layer data, for example, a packet header of the first protocol layer data, and forwarding the first protocol layer data to the target node according to the parsing result.

[0072] The target node may include but is not limited to at least one of the following:

[0073] Core network functions, such as core network data plane functions, LMF, and Network Data Analytics Function (NWDAF);

[0074] Radio access network functions, such as CU-CP, Centralized Unit–User Plane (CU-UP), and Centralized Unit–Data Plane (CU-DP);

[0075] Network external functions, such as AF.

[0076] It should be noted that the above-mentioned first protocol layer can be used to perform a first processing on at least one of the control information of the data plane and the data of the data plane, that is, the above-mentioned first protocol layer data may include at least one of the control information of the data plane and the data of the data plane. Among them, the above-mentioned data plane control information can also be referred to as data plane signaling data, for example, data collection coordination configuration, data collection configuration and data transmission configuration and other data plane control-related information. The above-mentioned data plane data may include but is not limited to at least one of the data collected based on the data plane control, positioning data carried by the data plane as a transport protocol layer, perception data, computing data, AI data (such as AI model training data, AI model), measurement data, user contract data, context data, etc.

[0077] Among them, the above-mentioned positioning data includes assistance data, location information, positioning measurement, etc. provided or received by at least one of the UE and the access network device, such as Global Navigation Satellite System (GNSS) assistance data, sensor assistance data, WLAN assistance data, GNSS location information, Time Difference of Arrival (TDOA) location information, Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), etc. in the positioning protocol.

[0078] The aforementioned perception data includes auxiliary data, perception results, and perception measurement data. Auxiliary data includes location information and auxiliary data from sensors (such as cameras and gyroscopes); perception results include speed, distance, angle, rainfall, intrusion, and breathing rate; and perception measurement data is the perception measurement quantity obtained through measurement.

[0079] The aforementioned computing data includes auxiliary data, computing service input data, computing service output data, etc. Auxiliary data includes computing service information (used to indicate the service provided or service identifier, such as rendering service, AI inference service, etc.) and computing load information (used to indicate computing load status, such as rendering service load of 30%, CPU utilization, etc.); computing service input / output data is the input / output information of the requested computing service, for example, the input data of the rendering service is audio and video description files, and the output data is a two-dimensional or three-dimensional image.

[0080] The above-mentioned AI data includes AI model training data, AI model data, etc., where AI model training data refers to the data used to train the AI ​​model; AI model data refers to the AI ​​model itself, including model structure, parameters, etc.

[0081] Exemplarily, in the NR protocol, the above-mentioned Layer Two sublayer (Layer Two Sublayer) may include, but is not limited to, at least one of the following: MAC, RLC, PDCP, and SDAP. Correspondingly, the above-mentioned second protocol layer being located above the above-mentioned Layer Two sublayer can be understood as the above-mentioned second protocol layer being located above any one or any combination of the protocol sublayers of MAC, RLC, PDCP, and SDAP. For example, as shown in FIG6a , the above-mentioned Layer Two sublayer includes PHY, MAC, RLC, PDCP, and SDAP, and the above-mentioned second protocol layer is located above MAC, RLC, PDCP, and SDAP; or, as shown in FIG6b , the above-mentioned Layer Two sublayer includes MAC, RLC, and PDCP, and the above-mentioned second protocol layer is located above MAC, RLC, and PDCP; or, as shown in FIG6c , the above-mentioned Layer Two sublayer includes MAC, and the above-mentioned second protocol layer is located above MAC. It should be noted that for protocols other than the above-mentioned NR, the above-mentioned Layer Two sublayer may include a protocol layer having the same functions as those implementing one or more combinations of the above-mentioned MAC, RLC, PDCP, and SDAP.

[0082] The second protocol layer may perform a first process on data transmitted to the second protocol layer (hereinafter referred to as the second protocol layer data) based on the configuration, wherein the first process may include at least one of interpreting the data and forwarding the data to a target node. Exemplarily, the forwarding of the data to the target node may include the second protocol layer not parsing the second protocol layer data and directly forwarding the second protocol layer data to the target node according to the configuration information, or the second protocol layer only parsing a portion of the second protocol layer data, for example, a packet header of the second protocol layer data, and forwarding the second protocol layer data to the target node according to the parsing result.

[0083] The target node may include but is not limited to at least one of the following:

[0084] Core network functions, such as core network data plane functions, LMF, NWDAF, etc.

[0085] Radio access network functions, such as CU-CP, CU-UP, CU-DP, etc.;

[0086] Network external functions, such as AF.

[0087] It should be noted that the above-mentioned second protocol layer can be used to perform a first processing on at least one of the control information of the data plane and the data of the data plane, that is, the above-mentioned second protocol layer data may include at least one of the control information of the data plane and the data of the data plane. Among them, the above-mentioned data plane control information can also be referred to as data plane signaling data, for example, data collection coordination configuration, data collection configuration and data transmission configuration and other data plane control-related information. The above-mentioned data on the data plane may include but is not limited to at least one of the data collected based on the data plane control, positioning data carried by the data plane as a transport protocol layer, perception data, computing data, AI data (such as AI model training data, AI model), measurement data, user contract data, context data, etc.

[0088] The target bearer is a bearer on the data plane and can be used to transmit at least one of control information and data on the data plane. Exemplarily, the target bearer can be a bearer corresponding to the target protocol layer. For example, if the target protocol layer includes a first protocol layer, the target bearer can include a first bearer corresponding to the first protocol layer; if the target protocol layer includes a second protocol layer, the target bearer can include a second bearer corresponding to the second protocol layer.

[0089] The following examples illustrate the above step 401 in different situations:

[0090] Case 1: The first protocol layer of the sending node sends a first data packet to the receiving node through the first bearer. The first data packet is a data packet generated according to control information of the data plane.

[0091] Case 2: The second protocol layer of the sending node sends a first data packet to the receiving node through the second bearer. The first data packet is a data packet generated according to the data on the data plane.

[0092] Case 3: The first protocol layer of the sending node sends a first data packet to the receiving node through the first bearer. The first data packet is a data packet generated according to data on the data plane.

[0093] Case 4: The second protocol layer of the sending node sends a first data packet to the receiving node through the second bearer. The first data packet is a data packet generated according to the control information of the data plane.

[0094] Case 5: The first protocol layer of the sending node sends a data packet generated according to the control information of the data plane to the receiving node through the first bearer, and the second protocol layer of the sending node sends a data packet generated according to the data of the data plane to the receiving node through the second bearer. The first data packet includes a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane.

[0095] Case 6: The first protocol layer of the sending node sends a data packet generated according to the control information of the data plane to the receiving node through the first bearer. The first protocol layer of the sending node sends a data packet generated according to the data plane data to the receiving node through the first bearer. The first data packet includes a data packet generated according to the control information of the data plane and a data packet generated according to the data plane data.

[0096] The data transmission method provided by the embodiment of the present application is that the target protocol layer of the sending node sends a first data packet to the receiving node through the target bearer; wherein the target protocol layer includes at least one of the first protocol layer of the data plane and the second protocol layer of the data plane, the first protocol layer is located above the wireless resource control sublayer, and the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of the data packet generated according to the control information of the data plane and the data packet generated according to the data plane. That is, the embodiment of the present application introduces at least one of the first protocol layer and the second protocol layer and the data plane bearer corresponding to the data plane, and then can transmit at least one of the control information of the data plane and the data of the data plane on the data plane bearer based on at least one of the first protocol layer and the second protocol layer, thereby realizing the transmission of the control information of the data plane, the data of the data plane, etc.

[0097] Optionally, the first data packet further includes first information, where the first information includes first indication information, and the first indication information is used to indicate one of the following:

[0098] The first data packet terminates at a target protocol layer of the receiving node;

[0099] The first data packet is forwarded at a target protocol layer of the receiving node;

[0100] The first data packet is forwarded after being processed by the target protocol layer of the receiving node.

[0101] The above-mentioned first data packet is terminated at the target protocol layer of the receiving node, which can be understood as the target protocol layer of the receiving node no longer passing the data packet to other nodes after receiving the first data packet. The above-mentioned first data packet is forwarded at the target protocol layer of the receiving node, which can be understood as the target protocol layer of the receiving node does not process the data packet after receiving the first data packet, but directly forwards the first data packet. The above-mentioned first data packet is forwarded after being processed by the target protocol layer of the receiving node, which can be understood as the target protocol layer of the receiving node processes the first data packet after receiving the first data packet and forwards the processed data packet.

[0102] The target node to which the target protocol layer of the receiving node forwards the first data packet or the processed data packet can be determined based on at least one of pre-acquired forwarding configuration information (e.g., forwarding node information, forwarding routing information, etc.) and the header of the first data packet. For example, if the first data packet is a data packet generated based on the control information of the data plane, the target node can be determined based on the header of the first data packet; if the first data packet is a data packet generated based on the data of the data packet, a data packet generated based on the control information of the data plane can be received in advance, and the data packet can include the forwarding configuration information, and the target node of the first data packet can be determined based on the forwarding configuration information.

[0103] Exemplarily, the first information may be carried in a header of the first data packet, where the first information includes first indication information, and the first indication information indicates a processing behavior of a target protocol layer of a receiving node on the first data packet. For example, a header of a service data unit (SDU) in a protocol data unit (PDU) generated by the target protocol layer includes the first indication information.

[0104] It can be understood that, when the target protocol layer of the receiving node receives the above-mentioned first data packet, it can determine to terminate the transmission of the first data packet based on the above-mentioned first indication information, or forward the first data packet to the target node, or process the first data packet and forward the processed first data packet to the target node.

[0105] In this embodiment, the first indication information is carried by the first data packet to indicate the target protocol layer of the receiving node how to process the first data packet, which is beneficial for the target protocol layer of the receiving node to clarify the processing behavior of the first data packet, thereby ensuring the accuracy of the processing of the first data packet by the target protocol layer of the receiving node.

[0106] Optionally, the first information further includes at least one of the following:

[0107] forwarding node information corresponding to the first data packet;

[0108] Forwarding routing information corresponding to the first data packet.

[0109] In this embodiment, the forwarding node information corresponding to the first data packet can be understood as the forwarding node information used for forwarding the first data packet. Exemplarily, the forwarding node information can include, but is not limited to, a forwarding node identifier, such as a network function identifier (e.g., LMF instance ID, RAN node ID, etc.). The forwarding node can be understood as a transmission node involved in the forwarding process of the first data packet.

[0110] The forwarding routing information corresponding to the first data packet can be understood as the forwarding routing information used for forwarding the first data packet. Exemplarily, the forwarding routing information may include information about the next routing node of each transmission node, such as an AMF instance ID.

[0111] In this embodiment, the first information further includes at least one of the forwarding node information corresponding to the first data packet and the forwarding route information corresponding to the first data packet, which is conducive to more accurate control of the forwarding of the first data packet.

[0112] Optionally, when the first data packet is a data packet generated according to the control information of the data plane, the first data packet further includes second information, where the second information includes second indication information, and the second indication information is used to indicate one of the following:

[0113] The second data packet terminates at the target protocol layer of the receiving node;

[0114] The second data packet is forwarded at the target protocol layer of the receiving node;

[0115] The second data packet is forwarded after being processed by the target protocol layer of the receiving node;

[0116] The second data packet is a data packet generated according to the data on the data plane.

[0117] In this embodiment, the second data packet may be a data packet whose transmission is controlled by the first data packet, that is, the transmission of the data plane data (ie, the second data packet) is controlled by the data plane control information (ie, the first data packet).

[0118] It should be noted that the second indication information of this embodiment is similar to the first indication information described above, and will not be described in detail here.

[0119] This embodiment carries the second indication information in the first data packet to indicate the target protocol layer of the receiving node how to process the second data packet, which helps the target protocol layer of the receiving node to clearly understand the processing behavior of the second data packet, thereby ensuring the accuracy of the processing of the second data packet by the target protocol layer of the receiving node.

[0120] Optionally, the second information further includes at least one of the following:

[0121] forwarding node information corresponding to the second data packet;

[0122] Forwarding routing information corresponding to the second data packet.

[0123] The forwarding node information corresponding to the second data packet and the forwarding route information corresponding to the second data packet in this embodiment can be found in the related descriptions of the forwarding node information corresponding to the first data packet and the forwarding route information corresponding to the first data packet, which will not be repeated here.

[0124] In this embodiment, the second information further includes at least one of the forwarding node information corresponding to the second data packet and the forwarding route information corresponding to the second data packet, which is conducive to more accurate control of the forwarding of the second data packet.

[0125] Optionally, the target protocol layer includes the first protocol layer, and the target protocol layer of the sending node sending the first data packet to the receiving node through the target bearer includes:

[0126] The first protocol layer of the sending node generates a first protocol data unit PDU of the data plane;

[0127] The first protocol layer of the sending node delivers the first PDU to the radio resource control sublayer of the sending node;

[0128] The radio resource control sublayer of the sending node sends the first PDU to the receiving node through the target bearer.

[0129] In this embodiment, the first protocol layer of the sending node can generate a first PDU based on the SDU of the first protocol layer, and submit the first PDU to the radio resource control sublayer of the sending node, and then the radio resource control sublayer of the sending node can send the first PDU to the receiving node through the target bearer. Optionally, the first PDU can be transmitted through a data plane container (DP-Container), wherein the DP-Container can be used to transmit data packets of the first protocol layer of the terminal between the wireless access network node and the terminal, and the radio resource control sublayer is transparent to the DP-Container, that is, the radio resource control sublayer can transparently transmit the above-mentioned DP-Container. Exemplarily, for the NR protocol, the first PDU can be transmitted through the DP-Container of RRC, and RRC is transparent to the DP-Container.

[0130] Accordingly, the radio resource control sublayer of the receiving node may receive the first PDU through the target bearer, and deliver the received first PDU to the first protocol layer of the receiving node.

[0131] Optionally, the header of the first PDU includes third indication information, and the third indication information is used to instruct to deliver the service data unit SDU of the first PDU to the first protocol layer of the receiving node.

[0132] Optionally, the target protocol layer includes the second protocol layer, and the target protocol layer of the sending node sending the first data packet to the receiving node through the target bearer includes:

[0133] The second protocol layer of the sending node generates a second PDU of the data plane;

[0134] The second protocol layer of the sending node delivers the second PDU to the layer 2 sublayer of the sending node;

[0135] The layer 2 sublayer of the sending node sends the second PDU to the receiving node through the target bearer.

[0136] In this embodiment, the second protocol layer of the sending node can generate a second PDU based on the SDU of the second protocol layer, and deliver the second PDU to the layer 2 sublayer of the sending node, and then the layer 2 sublayer of the sending node can send the second PDU to the receiving node through the target bearer.

[0137] Accordingly, the layer 2 sublayer of the receiving node may receive the second PDU through the target bearer and deliver the received second PDU to the second protocol layer of the receiving node.

[0138] Optionally, the header of the second PDU includes fourth indication information, and the fourth indication information is used to indicate that the SDU of the second PDU is to be delivered to the second protocol layer of the receiving node.

[0139] Optionally, the type of the target bearer includes at least one of a first type and a second type;

[0140] The first type includes one of the following: a control bearer, a data bearer, or a control and data bearer;

[0141] The second type includes one of the following: a bearer terminated at the receiving node, a bearer forwarded by the receiving node, and a bearer processed and forwarded by the receiving node.

[0142] In one embodiment, data plane bearers may be classified according to the type of data they carry, namely, control bearers, data bearers, and control and data bearers. In this case, the target bearer type is the first type, where the first type is one of the control bearer, data bearer, or control and data bearer.

[0143] The control bearer is used to transmit control information of the data plane, including data collection and coordination configuration, data transmission configuration, data reporting configuration, and data processing configuration.

[0144] The above-mentioned data bearer is used to transmit data on the data plane, including the required collected data (for example, SON, MDT, Quality of Experience (QoE), L2 measurement data, etc.), perception data, AI training data, AI model data and calculation data, etc.

[0145] The above control and data bearers are used to transmit both control information on the data plane and data on the data plane.

[0146] In another embodiment, data plane bearers can be classified based on the receiving node's processing behavior on the data plane bearer, namely, bearers terminated at the receiving node, bearers forwarded by the receiving node, and bearers processed and forwarded by the receiving node. In this case, the target bearer is of the second type, where the second type is one of the bearers terminated at the receiving node, forwarded by the receiving node, and processed and forwarded by the receiving node.

[0147] The bearer terminated at the receiving node, i.e., the receiving node terminates data transmission on the bearer. Exemplarily, the bearer terminated at the receiving node can be used to transmit data plane control information, including data collection and coordination configuration, data transmission configuration, data reporting configuration, and data processing configuration.

[0148] The bearer forwarded by the receiving node, i.e., the receiving node forwards the data on the bearer after receiving it, and the forwarded data is transparent to the receiving node. Exemplarily, the bearer forwarded by the receiving node can be used to transmit data on the data plane, including required collected data (e.g., SON, MDT, QoE, L2 measurement data, etc.), perception data, AI training data, AI model data, and computational data.

[0149] The bearer processed and forwarded by the receiving node is that the receiving node processes part or all of the data on the bearer (for example, desensitizing, de-redundancy, filtering, analyzing, etc.), and then forwards the processed data.

[0150] In another embodiment, the data plane bearers can be classified using the two aforementioned classification methods, that is, the data plane bearers are classified both based on the type of data they carry and based on the processing behavior of the receiving node on the data plane bearers. In this case, the target bearer type includes a first type and a second type, where the first type is one of the aforementioned control bearer, data bearer, or control and data bearer, and the second type is one of the aforementioned bearers terminated at the receiving node, forwarded by the receiving node, or processed and forwarded by the receiving node.

[0151] Optionally, the target bearer includes at least one of the following: a first bearer corresponding to the first protocol layer, and a second bearer corresponding to the second protocol layer.

[0152] In this embodiment, the first bearer is used to transmit data packets of the first protocol layer, and the second bearer is used to transmit data packets of the second protocol layer.

[0153] In this embodiment, a first bearer and a second bearer are introduced corresponding to the first protocol layer and the second protocol layer, respectively, so that data packets of the first protocol layer and data packets of the second protocol layer can be transmitted separately.

[0154] Optionally, the type of the first bearer is a control bearer, or the type of the second bearer is a data bearer.

[0155] In this embodiment, the type of the first bearer may be a control bearer by default, that is, the first bearer is used by default to transmit control information on the data plane. The type of the second bearer may be a data bearer by default, that is, the second bearer is used by default to transmit data on the data plane.

[0156] Optionally, the method further comprises at least one of the following:

[0157] The sending node transmits first configuration information for establishing or adding the first bearer;

[0158] The sending node transmits second configuration information used to establish or add the second bearer.

[0159] In this embodiment, when the sending node is a terminal and the receiving node is a radio access network node, the sending node may receive first configuration information for establishing or adding the first bearer from the receiving node, or the sending node may receive second configuration information for establishing or adding the second bearer from the receiving node; when the sending node is a radio access network node and the receiving node is a terminal, the sending node may send first configuration information for establishing or adding the first bearer to the receiving node, or the sending node may send second configuration information for establishing or adding the second bearer to the receiving node. Exemplarily, the above-mentioned first configuration information or second configuration information may be carried in an RRC reconfiguration message.

[0160] It is understandable that, when the sending node or the receiving node receives the first configuration information for establishing or adding the first bearer, the sending node or the receiving node may establish or add the first bearer based on the first configuration information. When the sending node or the receiving node receives the second configuration information for establishing or adding the second bearer, the sending node or the receiving node may establish or add the second bearer based on the second configuration information.

[0161] The following examples illustrate this embodiment:

[0162] Case 1: When the target protocol layer of the sending node sends the first data packet to the receiving node through the target bearer, and the first protocol layer of the sending node sends the first data packet to the receiving node through the first bearer, before the first protocol layer of the sending node sends the first data packet to the receiving node through the first bearer, the sending node transmits first configuration information for establishing or adding the first bearer, and then the first protocol layer of the sending node can send the first data packet to the receiving node through the first bearer.

[0163] Case 2: When the target protocol layer of the sending node sends the first data packet to the receiving node through the target bearer and the second protocol layer of the sending node sends the first data packet to the receiving node through the second bearer, before the second protocol layer of the sending node sends the first data packet to the receiving node through the second bearer, the sending node transmits second configuration information for establishing or adding the second bearer, and then the second protocol layer of the sending node can send the first data packet to the receiving node through the second bearer.

[0164] Case three: When the target protocol layer of the sending node sends a first data packet to the receiving node through the target bearer, including the first protocol layer of the sending node sending a data packet generated according to the control information of the data plane to the receiving node through the first bearer, and the second protocol layer of the sending node sending a data packet generated according to the data plane to the receiving node through the second bearer, before the first protocol layer of the sending node sends the data packet generated according to the control information of the data plane to the receiving node through the first bearer, the sending node transmits first configuration information for establishing or adding the first bearer, and then the first protocol layer of the sending node can send the data packet generated according to the control information of the data plane to the receiving node through the first bearer; before the second protocol layer of the sending node sends the data packet generated according to the data plane to the receiving node through the second bearer, the sending node can transmit second configuration information for establishing or adding the second bearer, and then the second protocol layer of the sending node can send the data packet generated according to the data plane to the receiving node through the second bearer.

[0165] In some optional embodiments, the sending node may transmit the second configuration information for establishing or adding the second bearer through the first bearer.

[0166] Optionally, the first configuration information is carried in a signaling radio bearer add modification list (srb-ToAddModList) information element;

[0167] The first configuration information includes fifth indication information, and the fifth indication information is used to indicate at least one of the following: the first bearer is used to transmit data packets on the data plane, and the type of the first bearer.

[0168] In this embodiment, the first bearer is defined as a signaling radio bearer (SRB), and the first bearer can be added through the srb-ToAddModList information element, that is, the above-mentioned first configuration information is carried in the srb-ToAddModList information element.

[0169] Among them, the above-mentioned first configuration information also includes fifth indication information to indicate that the first bearer is a data plane bearer. The above-mentioned data plane data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane. The type of the above-mentioned first bearer can be one of a control bearer, a data bearer, a control and data bearer, or the type of the above-mentioned first bearer can be one of a bearer terminated at the receiving node, a bearer forwarded by the receiving node, and a bearer processed and forwarded by the receiving node, or the type of the above-mentioned first bearer can include one of a control bearer, a data bearer, a control and data bearer, and one of a bearer terminated at the receiving node, a bearer forwarded by the receiving node, and a bearer processed and forwarded by the receiving node.

[0170] In some optional embodiments, the first bearer may be a control bearer by default. In this case, the type of the first bearer is one of a bearer terminated at the receiving node, a bearer forwarded by the receiving node, and a bearer processed and forwarded by the receiving node.

[0171] Exemplarily, an srb-ToAddModList information element for adding a first bearer may be as follows, wherein dpIndicator is used to indicate that the added bearer is a data plane bearer, and dprbtype1Indicator is used to indicate the type of the data plane bearer:

[0172] In this embodiment, the first bearer is added through the srb-ToAddModList information element, which not only simplifies the signaling design of adding the first bearer, but also improves the compatibility of the first bearer with the existing system.

[0173] Optionally, the second configuration information is carried in a data radio bearer add modification list (drb-ToAddModList) information element;

[0174] The second configuration information includes sixth indication information, and the sixth indication information is used to indicate at least one of the following: the second bearer is used to transmit data packets on the data plane, and the type of the second bearer.

[0175] In this embodiment, the second bearer is defined as a data radio bearer (DRB), and the second bearer can be added using drb-ToAddModList, that is, the second configuration information is carried in the signaling radio bearer drb-ToAddModList information element.

[0176] Among them, the above-mentioned second configuration information also includes sixth indication information to indicate that the second bearer is a data plane bearer. The above-mentioned data plane data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane. The type of the above-mentioned second bearer can be one of a control bearer, a data bearer, a control and data bearer, or the type of the above-mentioned second bearer can be one of a bearer terminated at the receiving node, a bearer forwarded by the receiving node, and a bearer processed and forwarded by the receiving node, or the type of the above-mentioned second bearer can include one of a control bearer, a data bearer, a control and data bearer, and one of a bearer terminated at the receiving node, a bearer forwarded by the receiving node, and a bearer processed and forwarded by the receiving node.

[0177] In some optional embodiments, the second bearer may be a data bearer by default. In this case, the type of the second bearer is one of a bearer terminated at the receiving node, a bearer forwarded by the receiving node, and a bearer processed and forwarded by the receiving node.

[0178] In this embodiment, the second bearer is added through the drb-ToAddModList information element, which not only simplifies the signaling design of adding the second bearer, but also improves the compatibility of the second bearer with the existing system.

[0179] Optionally, the second configuration information is carried in a data plane radio bearer add modification list (dprb-ToAddModList) information element.

[0180] In this embodiment, a new information element (i.e., the above-mentioned dprb-ToAddModList) can be introduced relative to the above-mentioned drb-ToAddModList information element to add a second bearer. That is, the above-mentioned second configuration information is carried in the dprb-ToAddModList information element. In this way, based on the above-mentioned dprb-ToAddModList information element, it can be known that it is used to add a data plane bearer. It should be noted that the above-mentioned new information element can also be called other names, which is not limited in this embodiment.

[0181] Exemplarily, a dprb-ToAddModList information element for adding a second bearer may be as follows, wherein the dprb-ToAddModList information element includes a dprb-Identity and a prbtypeIndicator, dprb-Identity is used to indicate the addition of a data plane bearer, and dprbtype1Indicator is used to indicate the type of the data plane bearer:

[0182] Optionally, the first data packet is a data packet generated according to the data on the data plane;

[0183] The target protocol layer of the sending node sends the first data packet to the receiving node through the target bearer, including at least one of the following:

[0184] In a case where it is determined not to transmit data through the second bearer, the target protocol layer of the sending node sends a first data packet to the receiving node through the first bearer;

[0185] In a case where it is determined to transmit data through the second bearer, the target protocol layer of the sending node sends a first data packet to the receiving node through the second bearer.

[0186] Exemplarily, when the sending node is a terminal and the receiving node is a wireless access network node, the sending node may determine whether to transmit data through the second bearer based on the configuration information sent by the receiving node, wherein the configuration information may be configuration information for the first data packet or configuration information for all data packets of the target service, etc. For example, when the configuration information sent by the receiving node does not include the identifier of the second bearer, the sending node determines not to transmit data through the second bearer. In this case, the target protocol layer of the sending node may send the first data packet to the receiving node through the first bearer; when the configuration information sent by the receiving node includes the identifier of the second bearer, the sending node determines to transmit data through the second bearer. In this case, the target protocol layer of the sending node may send the first data packet to the receiving node through the above-mentioned second bearer (i.e., the second bearer indicated by the identifier).

[0187] In this embodiment, when it is determined that data is not to be transmitted through the second bearer, the target protocol layer of the sending node sends the first data packet to the receiving node through the first bearer; when it is determined that data is to be transmitted through the second bearer, the target protocol layer of the sending node sends the first data packet to the receiving node through the second bearer, thereby ensuring that the transmission of the first data packet can be achieved under different circumstances.

[0188] Optionally, the first data packet is a data packet generated according to the data on the data plane;

[0189] Before the target protocol layer of the sending node sends the first data packet to the receiving node through the target bearer, the method further includes:

[0190] The sending node receives third configuration information through the first bearer, where the third configuration information includes an identifier of the second bearer;

[0191] The target protocol layer of the sending node sends a first data packet to the receiving node through the target bearer, including:

[0192] The target protocol layer of the sending node sends a first data packet to the receiving node through the second bearer.

[0193] In this embodiment, before sending the first data packet, the sending node receives third configuration information through the first bearer, and the above third configuration information at least includes an identifier of the second bearer, and then the first data packet can be sent based on at least one second bearer indicated by the identifier of the second bearer.

[0194] It can be understood that when multiple second bearers have been established between the sending node and the receiving node, the identifier of the above-mentioned second bearer can be used to indicate at least one second bearer among the above-mentioned multiple second bearers, and then the target protocol layer of the sending node can send the first data packet to the receiving node through at least one second bearer indicated by the identifier of the above-mentioned second bearer.

[0195] Optionally, the data on the data plane includes at least one of the following: positioning data, perception data, computing data, artificial intelligence (AI) data, measurement data, user contract data, and context data.

[0196] In this embodiment, the above-mentioned measurement data may include but is not limited to at least one of the following: layer 1 measurement (L1 measurement) data, layer 2 measurement (L2 measurement) data (for example, packet delay), layer 3 measurement (L3 measurement) data (for example, MDT / QoE, etc.).

[0197] The above context data may include but is not limited to at least one of the following: UE context on the radio access network side, UE context on the AMF side, and N4 session context.

[0198] The above-mentioned perception data may include perception control information and perception measurement quantities. An optional classification method is to classify the perception measurement quantities into the following four categories (this embodiment focuses on explaining the measurement quantities, and can also be classified into three categories or unclassified, etc., and the four categories are only for illustration). Based on the relationship between the perception measurement quantities and the perception services, the following third-level measurement quantities and fourth-level measurement quantities are generally also referred to as perception results, and the following second-level measurement quantities and / or first-level measurement quantities are also referred to as perception measurement data.

[0199] First-level measurement quantities: i.e., received signal / original channel information, including: received signal / channel response complex results, amplitude / phase, I / Q channels, and their operation results (operations include addition, subtraction, multiplication, and division; matrix addition, subtraction, multiplication, and division; matrix transposition; trigonometric operations; square root operations; and power operations, as well as threshold detection results and maximum / minimum value extraction results from these operations; operations also include Fast Fourier Transform (FFT) / Inverse Fast Fourier Transform (IFFT), Discrete Fourier Transform (DFT) / Inverse Discrete Fourier Transform (IDFT), 2D-FFT, 3D-FFT, matched filtering, autocorrelation operations, wavelet transforms, and digital filtering, as well as threshold detection results and maximum / minimum value extraction results from these operations);

[0200] Second-level measurement quantities: basic measurement quantities, including delay, Doppler, angle, signal strength, and their multi-dimensional combination representation;

[0201] Level 3 measurement: basic attributes / states, including distance, speed, angle / direction, radar cross-section (RCS), acceleration, etc.

[0202] Level 4 measurement: Advanced attributes / states, including spatial position, target presence, trajectory, movement, expression, vital signs, quantity, imaging results, weather, air quality, shape, material, composition, etc.

[0203] Optionally, one of the sending node and the receiving node is a terminal and the other is a wireless access network node. In this embodiment, the sending node is a terminal and the receiving node is a wireless access network node; or the sending node is a wireless access network node and the receiving node is a terminal.

[0204] Please refer to FIG. 7 , which is a flowchart of a data transmission method provided in an embodiment of the present application. The method may be executed by a receiving node, as shown in FIG. 7 , including the following steps:

[0205] Step 701: A target protocol layer of a receiving node receives a first data packet from a sending node via a target bearer.

[0206] The target protocol layer includes at least one of a first protocol layer of the data plane and a second protocol layer of the data plane, the first protocol layer is located above the wireless resource control sublayer, the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane.

[0207] Optionally, the first data packet further includes first information, where the first information includes first indication information, and the first indication information is used to indicate one of the following:

[0208] The first data packet terminates at a target protocol layer of the receiving node;

[0209] The first data packet is forwarded at a target protocol layer of the receiving node;

[0210] The first data packet is forwarded after being processed by the target protocol layer of the receiving node.

[0211] Optionally, the first information further includes at least one of the following:

[0212] forwarding node information corresponding to the first data packet;

[0213] Forwarding routing information corresponding to the first data packet.

[0214] Optionally, when the first data packet is a data packet generated according to the control information of the data plane, the first data packet further includes second information, where the second information includes second indication information, and the second indication information is used to indicate one of the following:

[0215] The second data packet terminates at the target protocol layer of the receiving node;

[0216] The second data packet is forwarded at the target protocol layer of the receiving node;

[0217] The second data packet is forwarded after being processed by the target protocol layer of the receiving node;

[0218] The second data packet is a data packet generated according to the data on the data plane.

[0219] Optionally, the second information further includes at least one of the following:

[0220] forwarding node information corresponding to the second data packet;

[0221] Forwarding routing information corresponding to the second data packet.

[0222] Optionally, the target protocol layer includes the first protocol layer, and the target protocol layer of the receiving node receives the first data packet from the sending node through the target bearer, including:

[0223] The radio resource control sublayer of the receiving node receives a first protocol data unit (PDU) of the data plane from the sending node through the target bearer;

[0224] The radio resource control sublayer of the receiving node delivers the first PDU to the first protocol layer of the receiving node.

[0225] Optionally, the header of the first PDU includes third indication information, and the third indication information is used to instruct to deliver the service data unit SDU of the first PDU to the first protocol layer of the receiving node.

[0226] Optionally, the target protocol layer includes the second protocol layer, and the target protocol layer of the receiving node receives the first data packet from the sending node through the target bearer, including:

[0227] The layer 2 sublayer of the receiving node receives the second PDU of the data plane from the sending node through the target bearer;

[0228] The layer 2 sublayer of the receiving node delivers the second PDU to the second protocol layer of the receiving node.

[0229] Optionally, the header of the second PDU includes fourth indication information, and the fourth indication information is used to indicate that the SDU of the second PDU is to be delivered to the second protocol layer of the receiving node.

[0230] Optionally, the type of the target bearer includes at least one of a first type and a second type;

[0231] The first type includes one of the following: a control bearer, a data bearer, or a control and data bearer;

[0232] The second type includes one of the following: a bearer terminated at the receiving node, a bearer forwarded by the receiving node, and a bearer processed and forwarded by the receiving node.

[0233] Optionally, the target bearer includes at least one of the following: a first bearer corresponding to the first protocol layer, and a second bearer corresponding to the second protocol layer.

[0234] Optionally, the type of the first bearer is a control bearer, or the type of the second bearer is a data bearer.

[0235] Optionally, the method further comprises at least one of the following:

[0236] The receiving node transmits first configuration information for establishing or adding the first bearer;

[0237] The receiving node transmits second configuration information used to establish or add the second bearer.

[0238] Optionally, the first configuration information is carried in a signaling radio bearer add modification list srb-ToAddModList information element;

[0239] The first configuration information includes fifth indication information, and the fifth indication information is used to indicate at least one of the following: the first bearer is used to transmit data packets on the data plane, and the type of the first bearer.

[0240] Optionally, the second configuration information is carried in a data radio bearer add modification list drb-ToAddModList information element;

[0241] The second configuration information includes sixth indication information, and the sixth indication information is used to indicate at least one of the following: the second bearer is used to transmit data packets on the data plane, and the type of the second bearer.

[0242] Optionally, the second configuration information is carried in a data plane radio bearer addition modification list dprb-ToAddModList information element.

[0243] Optionally, the first data packet is a data packet generated according to the data on the data plane;

[0244] The target protocol layer of the receiving node receives a first data packet from the sending node through the target bearer, including:

[0245] In a case where it is determined not to transmit data through the second bearer, the target protocol layer of the receiving node receives the first data packet from the sending node through the first bearer;

[0246] In a case where it is determined to transmit data through the second bearer, the target protocol layer of the receiving node receives the first data packet from the sending node through the second bearer.

[0247] Optionally, the first data packet is a data packet generated according to the data on the data plane;

[0248] Before the target protocol layer of the receiving node receives the first data packet from the sending node through the target bearer, the method further includes:

[0249] The receiving node sends third configuration information through the first bearer, where the third configuration information includes an identifier of the second bearer;

[0250] The target protocol layer of the receiving node receives a first data packet from the sending node through the target bearer, including:

[0251] The target protocol layer of the receiving node receives the first data packet from the sending node through the second bearer.

[0252] Optionally, the data on the data plane includes at least one of the following: positioning data, perception data, computing data, artificial intelligence (AI) data, measurement data, user contract data, and context data.

[0253] Optionally, one of the sending node and the receiving node is a terminal, and the other is a wireless access network node.

[0254] It should be noted that the implementation of this embodiment can refer to the relevant description of the embodiment shown in Figure 4, and will not be repeated here.

[0255] The following examples illustrate the embodiments of the present application:

[0256] It should be noted that the data involved in the embodiments of the present application may include perception data, QoE, MDT, SON, AI training data, AI models and calculation data, etc. The following examples are explained using perception data as an example. Among them, the collection and transmission of perception data can have two modes. The first mode is that the data required for perception is collected and coordinated by the data plane function (such as the first function) and transmitted based on the data plane bearer. This can achieve when multiple perception services can use the same perception measurement data, or when the communication service can use the same measurement data with the perception service (for example, the reference signal receiving power (RSRP) of the downlink reference signal (RS) reported by the UE can be reused in perception), supporting the multiplexing of the UE's measurement data to avoid repeated measurements and repeated reporting by the UE; the second mode is that the data required for perception is transmitted via the data plane bearer without the need for data collection and coordination by the first function.

[0257] Example 1: The data provision function is UE, the first function is a wireless access network node, the first function coordinates data collection, and the data transmission is terminated at the core network function.

[0258] This example uses the first mode of collecting and transmitting perception data as an example. For the first mode of collecting and transmitting perception data, it is assumed that the wireless access network node and / or the core network perception function has determined the UE that receives the perception signal and the measurement, and the determined UE supports the data plane. Then, the network sends first configuration information for adding / establishing a first bearer to the UE. The configuration method of the first bearer can refer to the relevant description of the aforementioned embodiment, where the type of the first bearer is a control bearer terminated at the wireless access network node.

[0259] The first function determines the data to be collected based on multiple data requirements, such as perception and MDT, and determines whether to transmit the data based on a second bearer. If it is determined that the data will be transmitted based on the second bearer, the radio access network node sends second configuration information to the UE to add / establish the second bearer. For example, the radio access network node can send the second configuration information to the UE based on the first bearer. The configuration method of the second bearer can refer to the relevant description of the aforementioned embodiment. Because the data is coordinated by the first function, the second bearer can be a data bearer terminated at the radio access network node. In this case, the radio access network node can store all received data and extract the data required by the corresponding perception function and send it to the core network perception function; or the second bearer can be a data bearer processed and forwarded by the radio access network node. In this case, the radio access network node can filter and process multiple perception measurement data at different times / locations to generate a smaller amount of perception measurement data and / or more accurate perception measurement data, and then forward the processed data to the core network perception function. For example, in this example, when the layer 2 sublayer includes MAC, the protocol stack of the UE, RAN, and core network (CN) can be as shown in Figure 8.

[0260] If it is determined not to transmit data based on the second bearer, the type of the first bearer may be a control and data bearer, that is, the sensing data may be transmitted through the first bearer.

[0261] Specifically, the radio access network node may send a data collection request (or referred to as a data collection configuration or a measurement configuration, etc.) to the UE based on the first bearer, where the data collection request is determined by the first function. The data collection request may include at least one of the following:

[0262] A measurement object specifies what to measure; optionally, the measurement object may also include a cell-specific offset, blacklisted cells to be ignored, and whitelisted cells to be considered for measurement.

[0263] Reporting Configuration, which specifies how reporting should be done, which can be periodic or event-triggered;

[0264] The Measurement ID is used to identify how to report the measurement value of a specific object; a measurement object can have multiple reporting configurations, and a reporting configuration can be applied to multiple measurement objects. Each measurement object is associated with a reporting configuration using a unique ID. When the UE sends a MeasurementReport message, the MeasurementReport message contains an ID and related metrics (i.e., the measurement results of each measurement quantity);

[0265] The measurement interval (Measurement Gap) is used to indicate the period in which the UE can perform measurements, etc.

[0266] Among them, the ID of the second bearer can be configured in the reporting configuration. The UE reports the perception data based on the second bearer according to the configured ID of the second bearer. After the wireless access network node receives the data of the second bearer, it forwards the data to the core network perception function (Sensing Function, SF) according to the type of the second bearer.

[0267] Example 2: The data provision function is UE, the first function is a wireless access network node, the first function configures data forwarding information, and the data transmission is terminated at the core network function.

[0268] This example uses the second mode of collecting and transmitting perception data as an example. For the second mode of collecting and transmitting perception data, it is assumed that the wireless access network node and / or the core network perception function has determined the UE that receives the perception signal and the measurement, and the determined UE supports the data plane. Then, the wireless access network node sends configuration information for adding / establishing a first bearer to the UE. The configuration method of the first bearer can refer to the relevant description of the aforementioned embodiment, where the type of the first bearer is a control bearer terminated at the wireless access network node.

[0269] The first function receives perception configuration information. For example, the first function receives the perception configuration information from the core network perception function and may forward the perception configuration information to the perception service function of the UE based on the first bearer. The perception configuration information includes target indication information for instructing the first protocol layer to forward the perception configuration information and the perception configuration information that needs to be transparently forwarded by the first protocol layer (if the perception configuration information is to prevent parsing by the first protocol layer, the above-mentioned perception configuration information may be transmitted in an encrypted manner). Optionally, the SDU of the perception configuration information includes a perception service function ID or information that can be used to determine an appropriate perception service function. The perception service function ID is used by the wireless access network node to forward the received data to the indicated perception service function according to the perception service function ID. The above-mentioned information used to determine the appropriate perception service function may be a perception service type (such as rainfall monitoring, speed measurement, etc.), geographic location information, etc. The wireless access network node determines the appropriate perception service function based on the obtained perception service type, geographic location information, load information of the perception service function, etc., and forwards the received data to the determined perception service function.

[0270] The first function determines whether to transmit data based on the second bearer. If the second bearer is determined, the radio access network node sends second configuration information to the UE to add / establish the second bearer. The configuration of the second bearer can refer to the relevant description of the aforementioned embodiment. Because the data is ultimately transmitted to the core network perception function, the type of the second bearer is a data bearer forwarded by the radio access network node or a data bearer forwarded after processing by the radio access network node. For the latter, the radio access network node can filter and process multiple perception measurement data at different times / locations to generate a smaller amount of perception measurement data and / or more accurate perception measurement data, and then forward the processed data to the core network perception function. For example, in this example, where the Layer 2 sublayer includes MAC, the protocol stacks of the UE, RAN, and CN can be as shown in Figure 9. If a service-based interface is used between the RAN and CN, the radio access network can provide data to the core network function via data services. The core network data function, core network perception function, and core network AI function can use a service-based interface solution that supports efficient data transmission (such as File Transfer Protocol (FTP) or Kafka).

[0271] If it is determined not to transmit data based on the second bearer, the type of the first bearer may be a control and data bearer.

[0272] It should be noted that there are two ways to report configuration for the UE. One way is to configure the ID of the second bearer in the SDU of the perception configuration information forwarded in the above-mentioned first protocol layer, so that the UE reports perception data based on the second bearer according to the configured ID of the second bearer, and the wireless access network node forwards the data to the core network perception function according to the type of the second bearer after receiving the data of the second bearer. The other way is the same as the way in Example 1, that is, the wireless access network node sends the first configuration information for adding / establishing the first bearer to the UE, wherein the type of the first bearer is a control bearer terminated in the wireless access network, and the wireless access network node sends a data collection request to the UE based on the first bearer terminated in the first protocol layer, and the data collection request includes at least the ID of the second bearer. In this way, the UE can also report perception data based on the second bearer according to the configured ID of the second bearer, and the wireless access network node forwards the data to the core network perception function according to the type of the second bearer after receiving the data of the second bearer.

[0273] Example 3: The data providing function is UE, the first function is a radio access network node, and data transmission is terminated at the radio access network node.

[0274] The main difference between this example and Example 1 or Example 2 is that if it is determined that data transmission is based on the second bearer, the radio access network node sends the second configuration information of adding / establishing the second bearer to the UE. Because the data is ultimately transmitted to the radio access network perception function, the type of the second bearer is terminated at the radio access network node. If the functional schemes of CU-CP, Centralized Unit-User Plane (CU-UP) and Centralized Unit-Data Plane (CU-DP) are adopted within the radio access network, the type of the second type of bearer can also be further subdivided into termination at the data plane function, forwarding at the data plane function, and forwarding after processing by the data plane function. Among them, the above-mentioned bearer type terminated at the data plane function is applicable to the first mode mentioned above. In this case, exemplarily, when the layer 2 sublayer includes MAC, the protocol stacks of UE, RAN and CN can be as shown in Figure 10. For the bearer types forwarded by the above-mentioned data plane function and forwarded after processing by the data plane function, the data plane function forwards the received data to the radio access network function such as CU-CP or CU-UP. For example, in the case where the layer 2 sublayer includes PDCP, RLC, MAC and PHY, the protocol stacks of UE, RAN and CN can be as shown in Figure 11

[0275] If it is determined not to transmit data based on the second bearer, the type of the first bearer may be a control and data bearer.

[0276] It should be noted that, similar to the interface between the access network node and the core network AMF in the 5G protocol, it is called the N2 interface, and the interface between the access network node and the core network UPF is called the N3 interface. The Nx involved in the above figure represents the interface between the access network node and the core network data function. Similar to the interface between the wireless access network centralized unit control plane (CU-CP) and the centralized unit user plane (CU-UP) in the 5G protocol, it is called the E1 interface, and Ey represents the interface between the wireless access network data plane function and the wireless access network perception function. The xNB involved in the above figure represents a base station, NxAP represents the application protocol of the Nx interface, which is used to support Nx interface management and data plane message interaction, and EyAP represents the application protocol of the Ey interface, which is used to support interface management and message interaction between the two functions.

[0277] It should be noted that the data transmission method provided in the embodiments of the present application can be executed by a data transmission device, or a control module in the data transmission device for executing the data transmission method. In the embodiments of the present application, the data transmission device provided in the embodiments of the present application is described by taking the data transmission method executed by the data transmission device as an example.

[0278] Please refer to FIG. 12 , which is a structural diagram of a data transmission device provided in an embodiment of the present application. As shown in FIG. 12 , the data transmission device 1200 includes:

[0279] The first target protocol layer 1201 is configured to send a first data packet to a receiving node via a target bearer;

[0280] The first target protocol layer is the target protocol layer of the sending node, the target protocol layer includes at least one of the first protocol layer of the data plane and the second protocol layer of the data plane, the first protocol layer is located above the radio resource control sublayer, and the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane.

[0281] Optionally, the first data packet further includes first information, where the first information includes first indication information, and the first indication information is used to indicate one of the following:

[0282] The first data packet terminates at a target protocol layer of the receiving node;

[0283] The first data packet is forwarded at a target protocol layer of the receiving node;

[0284] The first data packet is forwarded after being processed by the target protocol layer of the receiving node.

[0285] Optionally, the first information further includes at least one of the following:

[0286] forwarding node information corresponding to the first data packet;

[0287] Forwarding routing information corresponding to the first data packet.

[0288] Optionally, when the first data packet is a data packet generated according to the control information of the data plane, the first data packet further includes second information, where the second information includes second indication information, and the second indication information is used to indicate one of the following:

[0289] The second data packet terminates at the target protocol layer of the receiving node;

[0290] The second data packet is forwarded at the target protocol layer of the receiving node;

[0291] The second data packet is forwarded after being processed by the target protocol layer of the receiving node;

[0292] The second data packet is a data packet generated according to the data on the data plane.

[0293] Optionally, the second information further includes at least one of the following:

[0294] forwarding node information corresponding to the second data packet;

[0295] Forwarding routing information corresponding to the second data packet.

[0296] Optionally, the target protocol layer includes the first protocol layer;

[0297] The first protocol layer is specifically used for:

[0298] generating a first protocol data unit (PDU) of the data plane;

[0299] delivering the first PDU to the radio resource control sublayer of the sending node;

[0300] The apparatus further includes a radio resource control sublayer, configured to send the first PDU to a receiving node via the target bearer.

[0301] Optionally, the header of the first PDU includes third indication information, and the third indication information is used to instruct to deliver the service data unit SDU of the first PDU to the first protocol layer of the receiving node.

[0302] Optionally, the target protocol layer includes the second protocol layer;

[0303] The second protocol layer is specifically used for:

[0304] generating a second PDU of the data plane;

[0305] delivering the second PDU to the layer 2 sublayer of the sending node;

[0306] The apparatus further includes a layer 2 sublayer, configured to send the second PDU to a receiving node via the target bearer.

[0307] Optionally, the header of the second PDU includes fourth indication information, and the fourth indication information is used to indicate that the SDU of the second PDU is to be delivered to the second protocol layer of the receiving node.

[0308] Optionally, the type of the target bearer includes at least one of a first type and a second type;

[0309] The first type includes one of the following: a control bearer, a data bearer, or a control and data bearer;

[0310] The second type includes one of the following: a bearer terminated at the receiving node, a bearer forwarded by the receiving node, and a bearer processed and forwarded by the receiving node.

[0311] Optionally, the target bearer includes at least one of the following: a first bearer corresponding to the first protocol layer, and a second bearer corresponding to the second protocol layer.

[0312] Optionally, the type of the first bearer is a control bearer, or the type of the second bearer is a data bearer.

[0313] Optionally, the apparatus further includes a first transmission module, configured to perform at least one of the following:

[0314] transmitting first configuration information for establishing or adding the first bearer;

[0315] Transmit second configuration information used to establish or add the second bearer.

[0316] Optionally, the first configuration information is carried in a signaling radio bearer add modification list srb-ToAddModList information element;

[0317] The first configuration information includes fifth indication information, and the fifth indication information is used to indicate at least one of the following: the first bearer is used to transmit data packets on the data plane, and the type of the first bearer.

[0318] Optionally, the second configuration information is carried in a data radio bearer add modification list drb-ToAddModList information element;

[0319] The second configuration information includes sixth indication information, and the sixth indication information is used to indicate at least one of the following: the second bearer is used to transmit data packets on the data plane, and the type of the second bearer.

[0320] Optionally, the second configuration information is carried in a data plane radio bearer addition modification list dprb-ToAddModList information element.

[0321] Optionally, the first data packet is a data packet generated according to the data on the data plane;

[0322] The first target protocol layer is specifically used for at least one of the following:

[0323] If it is determined not to transmit data through the second bearer, sending a first data packet to a receiving node through the first bearer;

[0324] If it is determined that the data is to be transmitted through the second bearer, a first data packet is sent to the receiving node through the second bearer.

[0325] Optionally, the first data packet is a data packet generated according to the data on the data plane;

[0326] The device further comprises:

[0327] A first receiving module, configured to receive third configuration information through the first bearer before sending the first data packet to the receiving node through the target bearer, the third configuration information including an identifier of the second bearer;

[0328] The first target protocol layer is specifically used for:

[0329] A first data packet is sent to the receiving node through the second bearer.

[0330] Optionally, the data on the data plane includes at least one of the following: positioning data, perception data, computing data, artificial intelligence (AI) data, measurement data, user contract data, and context data.

[0331] Optionally, one of the sending node and the receiving node is a terminal, and the other is a wireless access network node.

[0332] In summary, the embodiments of the present application introduce at least one of the first and second protocol layers. The first protocol layer is based on the radio resource control sublayer, and the second protocol layer is based on the layer 2 sublayer. Accordingly, at least one of the first and second bearers is introduced. The type of the first or second bearer can be indicated in the configuration information added to the first or second bearer, or the processing method of the data packet at the receiving node can be indicated via first indication information in the SDU of the first or second bearer. The type of the first or second bearer can be classified as control, data, or control and data, depending on whether the data carried is control or data. Optionally, the first bearer defaults to a control bearer, and the second bearer defaults to a data bearer. The processing function / method of the bearer at the receiving node (e.g., gNB) can be classified as termination at the receiving node, forwarding at the receiving node, or forwarding after processing at the receiving node.

[0333] In addition, the solution provided in the embodiment of the present application supports the separation of control and data on the data plane. The solution can provide a unified bearer to support the transmission of control and data based on data collection requirements and data transmission requirements within the mobile network, and can also provide different types of bearers to support the transmission of control and data separation. Moreover, the solution can also support the transmission of the transmitted data to be terminated in the wireless access network, or forwarded through the wireless access network, or forwarded after being processed by the wireless access network as needed. At the same time, the solution supports both data collection and transmission based on data collection collaboration, and data collection and transmission based on non-data plane function decisions. Therefore, the solution can meet a variety of potential data collection and data transmission requirements within the mobile network.

[0334] The data transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or a network-side device, or can be a device other than a terminal or a network-side device. For example, the terminal can include but is not limited to the types of terminals 11 listed above, the network-side device can include but is not limited to the types of network-side devices 12 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0335] The data transmission device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 4 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0336] Please refer to FIG. 13 , which is a structural diagram of a data transmission device provided in an embodiment of the present application. As shown in FIG. 13 , the data transmission device 1300 includes:

[0337] The second target protocol layer 1301 is configured to receive a first data packet from a sending node via a target bearer;

[0338] The second target protocol layer is the target protocol layer of the receiving node, the target protocol layer includes at least one of the first protocol layer of the data plane and the second protocol layer of the data plane, the first protocol layer is located above the radio resource control sublayer, and the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane.

[0339] Optionally, the first data packet further includes first information, where the first information includes first indication information, and the first indication information is used to indicate one of the following:

[0340] The first data packet terminates at a target protocol layer of the receiving node;

[0341] The first data packet is forwarded at a target protocol layer of the receiving node;

[0342] The first data packet is forwarded after being processed by the target protocol layer of the receiving node.

[0343] Optionally, the first information further includes at least one of the following:

[0344] forwarding node information corresponding to the first data packet;

[0345] Forwarding routing information corresponding to the first data packet.

[0346] Optionally, when the first data packet is a data packet generated according to the control information of the data plane, the first data packet further includes second information, where the second information includes second indication information, and the second indication information is used to indicate one of the following:

[0347] The second data packet terminates at the target protocol layer of the receiving node;

[0348] The second data packet is forwarded at the target protocol layer of the receiving node;

[0349] The second data packet is forwarded after being processed by the target protocol layer of the receiving node;

[0350] The second data packet is a data packet generated according to the data on the data plane.

[0351] Optionally, the second information further includes at least one of the following:

[0352] forwarding node information corresponding to the second data packet;

[0353] Forwarding routing information corresponding to the second data packet.

[0354] Optionally, the target protocol layer includes the first protocol layer;

[0355] The apparatus further includes a radio resource control sublayer, specifically configured to:

[0356] receiving a first protocol data unit (PDU) of the data plane from the sending node via the target bearer;

[0357] The first PDU is delivered to the first protocol layer of the receiving node.

[0358] Optionally, the header of the first PDU includes third indication information, and the third indication information is used to indicate that the service data unit SDU of the first PDU is delivered to the first protocol layer of the receiving node.

[0359] Optionally, the target protocol layer includes the second protocol layer;

[0360] The device further comprises a layer 2 sublayer, specifically configured to:

[0361] receiving a second PDU of the data plane from the sending node through the target bearer;

[0362] The second PDU is delivered to the second protocol layer of the receiving node.

[0363] Optionally, the header of the second PDU includes fourth indication information, and the fourth indication information is used to indicate that the SDU of the second PDU is to be delivered to the second protocol layer of the receiving node.

[0364] Optionally, the type of the target bearer includes at least one of a first type and a second type;

[0365] The first type includes one of the following: a control bearer, a data bearer, or a control and data bearer;

[0366] The second type includes one of the following: a bearer terminated at the receiving node, a bearer forwarded by the receiving node, and a bearer processed and forwarded by the receiving node.

[0367] Optionally, the target bearer includes at least one of the following: a first bearer corresponding to the first protocol layer, and a second bearer corresponding to the second protocol layer.

[0368] Optionally, the type of the first bearer is a control bearer, or the type of the second bearer is a data bearer.

[0369] Optionally, the apparatus further includes a second transmission module, specifically configured to perform at least one of the following:

[0370] transmitting first configuration information for establishing or adding the first bearer;

[0371] Transmit second configuration information used to establish or add the second bearer.

[0372] Optionally, the first configuration information is carried in a signaling radio bearer add modification list srb-ToAddModList information element;

[0373] The first configuration information includes fifth indication information, and the fifth indication information is used to indicate at least one of the following: the first bearer is used to transmit data packets on the data plane, and the type of the first bearer.

[0374] Optionally, the second configuration information is carried in a data radio bearer add modification list drb-ToAddModList information element;

[0375] The second configuration information includes sixth indication information, and the sixth indication information is used to indicate at least one of the following: the second bearer is used to transmit data packets on the data plane, and the type of the second bearer.

[0376] Optionally, the second configuration information is carried in a data plane radio bearer addition modification list dprb-ToAddModList information element.

[0377] Optionally, the first data packet is a data packet generated according to the data on the data plane;

[0378] The second target protocol layer is specifically used for:

[0379] When determining not to transmit data through the second bearer, receiving the first data packet from the sending node through the first bearer;

[0380] In a case where it is determined to transmit data through the second bearer, the first data packet is received from the sending node through the second bearer.

[0381] Optionally, the first data packet is a data packet generated according to the data on the data plane;

[0382] The device further includes a first sending module, specifically configured to:

[0383] Before receiving the first data packet from the sending node through the target bearer, sending third configuration information through the first bearer, where the third configuration information includes an identifier of the second bearer;

[0384] The second target protocol layer is specifically used for:

[0385] The first data packet is received from the sending node through the second bearer.

[0386] Optionally, the data on the data plane includes at least one of the following: positioning data, perception data, computing data, artificial intelligence (AI) data, measurement data, user contract data, and context data.

[0387] Optionally, one of the sending node and the receiving node is a terminal, and the other is a wireless access network node.

[0388] The data transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or a network-side device, or can be a device other than a terminal or a network-side device. For example, the terminal can include but is not limited to the types of terminals 11 listed above, the network-side device can include but is not limited to the types of network-side devices 12 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0389] The data transmission device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 7 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0390] Optionally, as shown in FIG14 , an embodiment of the present application further provides a communication device 1400, comprising a processor 1401 and a memory 1402, wherein the memory 1402 stores a program or instruction that can be run on the processor 1401. For example, when the communication device 1400 is a terminal, the program or instruction, when executed by the processor 1401, implements the various steps of the above-mentioned data transmission method embodiment and can achieve the same technical effect. When the communication device 1400 is a network-side device, the program or instruction, when executed by the processor 1401, implements the various steps of the above-mentioned data transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0391] An embodiment of the present application also provides a sending node, including a processor and a communication interface, wherein the communication interface is used to send a first data packet to a receiving node through a target bearer based on a target protocol layer; wherein the target protocol layer includes at least one of a first protocol layer of the data plane and a second protocol layer of the data plane, the first protocol layer is located above the radio resource control sublayer, the second protocol layer is located above the layer 2 sublayer, the target bearer is a bearer of the data plane, and the first data packet includes at least one of a data packet generated according to the control information of the data plane and a data packet generated according to the data of the data plane. This sending node embodiment corresponds to the above-mentioned sending node side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this sending node embodiment, and can achieve the same technical effect. Specifically, Figure 15 is a schematic diagram of the hardware structure of a sending node that implements an embodiment of the present application.

[0392] The sending node 1500 includes but is not limited to: a radio frequency unit 1501, a network module 1502, an audio output unit 1503, an input unit 1504, a sensor 1505, a display unit 1506, a user input unit 1507, an interface unit 1508, a memory 1509 and at least some of the components of the processor 1510.

[0393] Those skilled in the art will appreciate that the sending node 1500 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 1510 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The sending node structure shown in FIG15 does not limit the sending node. The sending node may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0394] It should be understood that in an embodiment of the present application, the input unit 1504 may include a graphics processing unit (GPU) 15041 and a microphone 15042, and the graphics processor 15041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1506 may include a display panel 15061, and the display panel 15061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1507 includes a touch panel 15071 and at least one of other input devices 15072. The touch panel 15071 is also called a touch screen. The touch panel 15071 may include two parts: a touch detection device and a touch controller. Other input devices 15072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0395] In the embodiment of the present application, after receiving downlink data from a network-side device, the radio frequency unit 1501 may transmit the data to the processor 1510 for processing. Furthermore, the radio frequency unit 1501 may send uplink data to the network-side device. Typically, the radio frequency unit 1501 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0396] The memory 1509 can be used to store software programs or instructions and various data. The memory 1509 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1509 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 1509 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0397] Processor 1510 may include one or more processing units. Optionally, processor 1510 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1510.

[0398] Among them, the radio frequency unit 1501 is used to send a first data packet to a receiving node through a target bearer based on a target protocol layer; wherein the target protocol layer includes at least one of a first protocol layer of the data plane and a second protocol layer of the data plane, the first protocol layer is located above the wireless resource control sublayer, and the second protocol layer is located above the layer 2 sublayer, the target bearer is a bearer of the data plane, and the first data packet includes at least one of a data packet generated according to control information of the data plane and a data packet generated according to data of the data plane.

[0399] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the aforementioned method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0400] An embodiment of the present application also provides a receiving node, including a processor and a communication interface, wherein the communication interface is used to receive a first data packet from a sending node through a target bearer based on a target protocol layer; wherein the target protocol layer includes at least one of a first protocol layer of the data plane and a second protocol layer of the data plane, the first protocol layer is located above the radio resource control sublayer, the second protocol layer is located above the layer 2 sublayer, the target bearer is a bearer of the data plane, and the first data packet includes at least one of a data packet generated according to control information of the data plane and a data packet generated according to data of the data plane. This receiving node embodiment corresponds to the above-mentioned receiving node side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this receiving node embodiment and can achieve the same technical effect.

[0401] Specifically, embodiments of the present application also provide a receiving node. As shown in Figure 16, receiving node 1600 includes an antenna 1601, a radio frequency device 1602, a baseband device 1603, a processor 1604, and a memory 1605. Antenna 1601 is connected to radio frequency device 1602. In the uplink direction, radio frequency device 1602 receives information via antenna 1601 and sends the received information to baseband device 1603 for processing. In the downlink direction, baseband device 1603 processes the information to be transmitted and sends it to radio frequency device 1602. Radio frequency device 1602 processes the received information and then sends it through antenna 1601.

[0402] The method executed by the receiving node in the above embodiment may be implemented in the baseband device 1603, which includes a baseband processor.

[0403] The baseband device 1603 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 16, one of which is, for example, a baseband processor, which is connected to the memory 1605 through a bus interface to call the program in the memory 1605 and execute the network device operations shown in the above method embodiment.

[0404] The receiving node may further include a network interface 1606 , which may be, for example, a Common Public Radio Interface (CPRI).

[0405] Specifically, the receiving node 1600 of an embodiment of the present application also includes: instructions or programs stored in the memory 1605 and executable on the processor 1604. The processor 1604 calls the instructions or programs in the memory 1605 to execute the method of executing each module shown in Figure 13 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0406] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned data transmission method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0407] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0408] An embodiment of the present application further provides a chip, which includes 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 the various processes of the above-mentioned data transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0409] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0410] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned data transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0411] An embodiment of the present application also provides a data transmission system, including: a terminal and a network-side device, wherein the terminal is used to execute the various processes as shown in Figure 4 and the various method embodiments described above, and the network-side device is used to execute the various processes as shown in Figure 7 and the various method embodiments described above, and can achieve the same technical effects. To avoid repetition, they will not be repeated here.

[0412] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0413] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0414] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A data transmission method, comprising: The target protocol layer of the sending node sends a first data packet to the receiving node through the target bearer; The target protocol layer includes at least one of a first protocol layer of the data plane and a second protocol layer of the data plane, the first protocol layer is located above the wireless resource control sublayer, the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to control information of the data plane and a data packet generated according to data of the data plane.

2. The method according to claim 1, wherein: The first data packet further includes first information, the first information includes first indication information, and the first indication information is used to indicate one of the following: The first data packet terminates at a target protocol layer of the receiving node; The first data packet is forwarded at a target protocol layer of the receiving node; The first data packet is forwarded after being processed by the target protocol layer of the receiving node.

3. The method according to claim 2, wherein: The first information also includes at least one of the following: forwarding node information corresponding to the first data packet; Forwarding routing information corresponding to the first data packet.

4. The method according to any one of claims 1 to 3, wherein: In the case where the first data packet is a data packet generated according to the control information of the data plane, the first data packet further includes second information, the second information includes second indication information, and the second indication information is used to indicate one of the following: The second data packet is terminated at the target protocol layer of the receiving node; The second data packet is forwarded at the target protocol layer of the receiving node; The second data packet is forwarded after being processed by the target protocol layer of the receiving node; The second data packet is a data packet generated according to the data on the data plane.

5. The method according to claim 4, wherein: The second information also includes at least one of the following: forwarding node information corresponding to the second data packet; Forwarding routing information corresponding to the second data packet.

6. The method according to any one of claims 1 to 5, wherein: The target protocol layer includes the first protocol layer, and the target protocol layer of the sending node sends a first data packet to the receiving node through the target bearer, including: The first protocol layer of the sending node generates a first protocol data unit PDU of the data plane; The first protocol layer of the sending node delivers the first PDU to the radio resource control sublayer of the sending node; The radio resource control sublayer of the sending node sends the first PDU to the receiving node through the target bearer.

7. The method according to claim 6, wherein: The header of the first PDU includes third indication information, where the third indication information is used to indicate that a service data unit SDU of the first PDU is to be delivered to a first protocol layer of the receiving node.

8. The method according to any one of claims 1 to 5, wherein: The target protocol layer includes the second protocol layer, and the target protocol layer of the sending node sends a first data packet to the receiving node through the target bearer, including: The second protocol layer of the sending node generates a second PDU of the data plane; The second protocol layer of the sending node delivers the second PDU to the layer 2 sublayer of the sending node; The layer 2 sublayer of the sending node sends the second PDU to the receiving node through the target bearer.

9. The method according to claim 8, wherein: The header of the second PDU includes fourth indication information, and the fourth indication information is used to indicate that the SDU of the second PDU is delivered to the second protocol layer of the receiving node.

10. The method according to any one of claims 1 to 9, wherein: The type of the target bearer includes at least one of a first type and a second type; The first type includes one of the following: a control bearer, a data bearer, a control and data bearer; The second type includes one of the following: a bearer terminated at the receiving node, a bearer forwarded by the receiving node, and a bearer processed and forwarded by the receiving node.

11. The method according to any one of claims 1 to 10, wherein: The target bearer includes at least one of the following: a first bearer corresponding to the first protocol layer, and a second bearer corresponding to the second protocol layer.

12. The method according to claim 11, wherein: The type of the first bearer is a control bearer, or the type of the second bearer is a data bearer.

13. The method according to claim 11 or 12, wherein: The method further comprises at least one of the following: The sending node transmits first configuration information for establishing or adding the first bearer; The sending node transmits second configuration information used to establish or add the second bearer.

14. The method according to claim 13, wherein: The first configuration information is carried in a signaling radio bearer add modification list srb-ToAddModList information element; The first configuration information includes fifth indication information, and the fifth indication information is used to indicate at least one of the following: the first bearer is used to transmit data packets on the data plane, and the type of the first bearer.

15. The method according to claim 13 or 14, wherein: The second configuration information is carried in a data radio bearer add modification list drb-ToAddModList information element; The second configuration information includes sixth indication information, and the sixth indication information is used to indicate at least one of the following: the second bearer is used to transmit data packets on the data plane, and the type of the second bearer.

16. The method according to claim 13 or 14, wherein: The second configuration information is carried in the data plane radio bearer addition modification list dprb-ToAddModList information element.

17. The method according to any one of claims 11 to 16, wherein: The first data packet is a data packet generated according to the data on the data plane; The target protocol layer of the sending node sends a first data packet to the receiving node through the target bearer, including at least one of the following: In a case where it is determined not to transmit data through the second bearer, the target protocol layer of the sending node sends a first data packet to the receiving node through the first bearer; In a case where it is determined to transmit data through the second bearer, the target protocol layer of the sending node sends a first data packet to the receiving node through the second bearer.

18. The method according to any one of claims 11 to 16, wherein: The first data packet is a data packet generated according to the data on the data plane; Before the target protocol layer of the sending node sends the first data packet to the receiving node through the target bearer, the method further includes: The sending node receives third configuration information through the first bearer, where the third configuration information includes an identifier of the second bearer; The target protocol layer of the sending node sends a first data packet to the receiving node through the target bearer, including: The target protocol layer of the sending node sends a first data packet to the receiving node through the second bearer.

19. The method according to any one of claims 1 to 18, wherein: The data on the data plane includes at least one of the following: positioning data, perception data, computing data, artificial intelligence (AI) data, measurement data, user contract data, and context data.

20. The method according to any one of claims 1 to 19, wherein: One of the sending node and the receiving node is a terminal, and the other is a wireless access network node.

21. A data transmission method, comprising: The target protocol layer of the receiving node receives the first data packet from the sending node through the target bearer; The target protocol layer includes at least one of a first protocol layer of the data plane and a second protocol layer of the data plane, the first protocol layer is located above the wireless resource control sublayer, the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to control information of the data plane and a data packet generated according to data of the data plane.

22. The method according to claim 21, wherein: The first data packet further includes first information, the first information includes first indication information, and the first indication information is used to indicate one of the following: The first data packet terminates at a target protocol layer of the receiving node; The first data packet is forwarded at a target protocol layer of the receiving node; The first data packet is forwarded after being processed by the target protocol layer of the receiving node.

23. The method according to claim 22, wherein: The first information also includes at least one of the following: forwarding node information corresponding to the first data packet; Forwarding routing information corresponding to the first data packet.

24. The method according to any one of claims 21 to 23, wherein: In the case where the first data packet is a data packet generated according to the control information of the data plane, the first data packet further includes second information, the second information includes second indication information, and the second indication information is used to indicate one of the following: The second data packet is terminated at the target protocol layer of the receiving node; The second data packet is forwarded at the target protocol layer of the receiving node; The second data packet is forwarded after being processed by the target protocol layer of the receiving node; The second data packet is a data packet generated according to the data on the data plane.

25. The method according to claim 24, wherein: The second information also includes at least one of the following: forwarding node information corresponding to the second data packet; Forwarding routing information corresponding to the second data packet.

26. The method according to any one of claims 21 to 25, wherein: The target protocol layer includes the first protocol layer, and the target protocol layer of the receiving node receives a first data packet from the sending node through the target bearer, including: The radio resource control sublayer of the receiving node receives a first protocol data unit PDU of the data plane from the sending node through the target bearer; The radio resource control sublayer of the receiving node delivers the first PDU to the first protocol layer of the receiving node.

27. The method according to claim 26, wherein: The header of the first PDU includes third indication information, where the third indication information is used to indicate that a service data unit SDU of the first PDU is to be delivered to a first protocol layer of the receiving node.

28. The method according to any one of claims 21 to 25, wherein: The target protocol layer includes the second protocol layer, and the target protocol layer of the receiving node receives the first data packet from the sending node through the target bearer, including: The layer 2 sublayer of the receiving node receives a second PDU of the data plane from the sending node through the target bearer; The layer 2 sublayer of the receiving node delivers the second PDU to the second protocol layer of the receiving node.

29. The method according to claim 28, wherein: The header of the second PDU includes fourth indication information, and the fourth indication information is used to indicate that the SDU of the second PDU is delivered to the second protocol layer of the receiving node.

30. The method according to any one of claims 21 to 29, wherein: The type of the target bearer includes at least one of a first type and a second type; The first type includes one of the following: a control bearer, a data bearer, a control and data bearer; The second type includes one of the following: a bearer terminated at the receiving node, a bearer forwarded by the receiving node, and a bearer processed and forwarded by the receiving node.

31. The method according to any one of claims 21 to 30, wherein: The target bearer includes at least one of the following: a first bearer corresponding to the first protocol layer, and a second bearer corresponding to the second protocol layer.

32. The method according to claim 31, wherein: The type of the first bearer is a control bearer, or the type of the second bearer is a data bearer.

33. The method according to claim 31 or 32, wherein: The method further comprises at least one of the following: The receiving node transmits first configuration information for establishing or adding the first bearer; The receiving node transmits second configuration information used to establish or add the second bearer.

34. The method of claim 33, wherein: The first configuration information is carried in a signaling radio bearer add modification list srb-ToAddModList information element; The first configuration information includes fifth indication information, and the fifth indication information is used to indicate at least one of the following: the first bearer is used to transmit data packets on the data plane, and the type of the first bearer.

35. The method according to claim 33 or 34, wherein: The second configuration information is carried in a data radio bearer add modification list drb-ToAddModList information element; The second configuration information includes sixth indication information, and the sixth indication information is used to indicate at least one of the following: the second bearer is used to transmit data packets on the data plane, and the type of the second bearer.

36. The method according to claim 33 or 34, wherein: The second configuration information is carried in the data plane radio bearer addition modification list dprb-ToAddModList information element.

37. A method according to any one of claims 31 to 36, wherein: The first data packet is a data packet generated according to the data on the data plane; The target protocol layer of the receiving node receives a first data packet from the sending node through the target bearer, including: In a case where it is determined not to transmit data through the second bearer, the target protocol layer of the receiving node receives the first data packet from the sending node through the first bearer; In a case where it is determined to transmit data through the second bearer, the target protocol layer of the receiving node receives the first data packet from the sending node through the second bearer.

38. The method according to any one of claims 31 to 36, wherein: The first data packet is a data packet generated according to the data on the data plane; Before the target protocol layer of the receiving node receives the first data packet from the sending node through the target bearer, the method further includes: The receiving node sends third configuration information through the first bearer, where the third configuration information includes an identifier of the second bearer; The target protocol layer of the receiving node receives a first data packet from the sending node through the target bearer, including: The target protocol layer of the receiving node receives the first data packet from the sending node through the second bearer.

39. The method according to any one of claims 31 to 38, wherein: The data on the data plane includes at least one of the following: positioning data, perception data, computing data, artificial intelligence (AI) data, measurement data, user contract data, and context data.

40. The method according to any one of claims 21 to 39, wherein: One of the sending node and the receiving node is a terminal, and the other is a wireless access network node.

41. A data transmission device, applied to a sending node, comprising: A first target protocol layer, used to send a first data packet to a receiving node through a target bearer; Among them, the first target protocol layer is the target protocol layer of the sending node, the target protocol layer includes at least one of a first protocol layer of the data plane and a second protocol layer of the data plane, the first protocol layer is located above the wireless resource control sublayer, the second protocol layer is located above the layer 2 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to control information of the data plane and a data packet generated according to data of the data plane.

42. A data transmission device, applied to a receiving node, comprising: A second target protocol layer, configured to receive a first data packet from a sending node via a target bearer; The second target protocol layer is the target protocol layer of the receiving node, the target protocol layer includes at least one of the first protocol layer of the data plane and the second protocol layer of the data plane, the first protocol layer is located in the radio resource control The first protocol layer is located above the layer 2 control sublayer, the second protocol layer is located above the layer 3 sublayer, the target bearer is the bearer of the data plane, and the first data packet includes at least one of a data packet generated according to control information of the data plane and a data packet generated according to data of the data plane.

43. A sending node, comprising a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the data transmission method according to any one of claims 1 to 20 are implemented.

44. A network side device, comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the data transmission method as described in any one of claims 21 to 40 are implemented.

45. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the data transmission method according to any one of claims 1 to 20, or implements the steps of the data transmission method according to any one of claims 21 to 40.

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