Data transmission method, communication device and storage medium

Abstract

The invention provides a data transmission method, a communication device and a storage medium, relates to the field of communication, and is used for reducing overhead in data transmission and processing processes. The method comprises the following steps: sending a first message to a second node, wherein the first message is used for requesting to transmit first type data; receiving a second message sent by the second node and used for responding to the first message; transmitting the first type of data with the second node based on the second message; wherein one of the first node and the second node is a transmission starting point of the first type of data, and the other one is a transmission ending point of the first type of data.

Description

Technical Field

[0001] The present disclosure relates to the field of communications, and in particular to a data transmission method, a communication device, and a storage medium. Background Art

[0002] With the rapid development of science and technology, the demand for artificial intelligence (AI) technology in the field of wireless communications is also growing, and the development of future networks will move towards intelligence. At present, the processing of data involved in some artificial intelligence technologies (such as data generated and / or used by AI, perception data, etc.) is mainly concentrated in the cloud, that is, the data will be uploaded to the cloud via intermediate nodes (such as terminals and base stations) and processed by the cloud.

[0003] However, for air interface-specific AI use cases, it is usually necessary to process a large amount of data in real time. If these massive amounts of data need to be uploaded to the cloud for processing, it will occupy a large amount of network bandwidth and resources, leading to network congestion and increased latency. At the same time, since air interface-specific AI use cases have high requirements for real-time data processing, uploading data to the cloud for processing will cause round-trip data transmission, thereby increasing the latency of data interaction. In summary, if air interface-specific AI use cases upload data to the cloud for processing, the overhead of data transmission and processing will be high. Summary of the invention

[0004] The embodiments of the present disclosure provide a data transmission method, a communication device, and a storage medium, which are used to reduce the overhead in the data transmission and processing process.

[0005] In a first aspect, a data transmission method is provided, which is applied to a first node, and the method includes:

[0006] Sending a first message to the second node, where the first message is used to request transmission of first type data;

[0007] receiving a second message sent by the second node in response to the first message;

[0008] Based on the second message, the first type of data is transmitted with the second node; wherein one of the first node and the second node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

[0009] Based on the data transmission method provided by the embodiment of the present disclosure, when the first node needs to transmit the first type of data to the second node, it will send a first message to the second node and receive a second message from the second node to respond to the first message, so as to realize the confirmation of the transmission of the first type of data, so that the first node can perform subsequent operations based on the second message (that is, the feedback message of the second node), thereby ensuring the reliability of the first type of data transmission.

[0010] At the same time, in the method provided by the embodiment of the present disclosure, when the first node and the second node transmit the first type of data, one of the first node and the second node is the transmission starting point of the first type of data, and the other is the transmission end point of the first type of data; the first type of data does not need to be further transmitted to the cloud for processing, but is only transmitted between the first node and the second node, which improves the efficiency of the transmission and processing of the first type of data and reduces the overhead during the transmission and processing of the first type of data.

[0011] In a second aspect, a data transmission method is provided, which is applied to a second node, and the method includes:

[0012] receiving a first message sent by a first node, where the first message is used to request transmission of first type data;

[0013] Sending a second message to the first node in response to the first message;

[0014] Based on the second message, the first type of data is transmitted with the first node; wherein one of the first node and the second node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

[0015] Based on the data transmission method provided by the embodiment of the present disclosure, after receiving the first message sent by the first node, the second node sends a second message to the first node to respond to the first message, so as to realize the confirmation of the transmission of the first type of data, so that the first node can perform subsequent operations based on the second message (i.e., the feedback message of the second node), thereby ensuring the reliability of the first type of data transmission.

[0016] At the same time, in the method provided by the embodiment of the present disclosure, when the second node and the first node transmit the first type of data, one of the first node and the second node is the starting point for transmission of the first type of data, and the other is the end point for transmission of the first type of data; the first type of data does not need to be further transmitted to the cloud for processing, but is only transmitted between the first node and the second node, thereby improving the efficiency of transmission and processing of the first type of data and reducing the overhead during transmission and processing of the first type of data.

[0017] According to a third aspect, a data transmission method is provided, which is applied to a first node, and the method includes:

[0018] Sending a first message to the second node, where the first message is used to request transmission of first type data;

[0019] receiving a second message sent by the second node in response to the first message, wherein the second message includes address information of the target node;

[0020] Based on the address information of the target node, the first type of data is transmitted to the target node; wherein one of the first node and the target node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

[0021] Based on the data transmission method provided by the embodiment of the present disclosure, when the first node needs to transmit the first type of data, it will send a first message to the second node and receive a second message from the second node to respond to the first message, so as to confirm the transmission of the first type of data, so that the first node can perform subsequent operations based on the second message (that is, the feedback message of the second node), thereby ensuring the reliability of the first type of data transmission.

[0022] At the same time, in the method provided by the embodiment of the present disclosure, the first node can obtain the address information of the target node from the second node, and based on the address information of the target node, transmit the first type of data with the target node, which can make the transmission start point and transmission end point of the first type of data transmission more abundant. In addition, one of the first node and the target node is the transmission start point of the first type of data, and the other is the transmission end point of the first type of data; the first type of data does not need to be further transmitted to the cloud for processing, but is only transmitted between the first node and the second node, which improves the efficiency of the transmission and processing of the first type of data and reduces the overhead during the transmission and processing of the first type of data.

[0023] In a fourth aspect, a data transmission method is provided, which is applied to a second node, and the method includes:

[0024] receiving a first message sent by a first node, where the first message is used to request transmission of first type data;

[0025] A second message for responding to the first message is sent to the first node; the second message includes address information of the target node; wherein one of the first node and the target node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

[0026] Based on the data transmission method provided by the embodiment of the present disclosure, after receiving the first message sent by the first node, the second node sends a second message to the first node to respond to the first message, so as to realize the confirmation of the transmission of the first type of data, so that the first node can perform subsequent operations based on the second message (i.e., the feedback message of the second node), thereby ensuring the reliability of the first type of data transmission.

[0027] At the same time, the second message includes the address information of the target node, which enables the first node to transmit the first type of data with the target node, making the transmission start point and transmission end point of the first type of data transmission more abundant. In addition, one of the first node and the target node is the transmission start point of the first type of data, and the other is the transmission end point of the first type of data; the first type of data does not need to be further transmitted to the cloud for processing, but is only transmitted between the first node and the second node, which improves the efficiency of the transmission and processing of the first type of data and reduces the overhead during the transmission and processing of the first type of data.

[0028] In a fifth aspect, a data transmission method is provided, which is applied to a target node, and the method includes:

[0029] receiving a fourth message sent by the first node, where the fourth message is used to request establishment of a session for transmitting the first type of data;

[0030] Sending a fifth message to the first node, where the fifth message is used to indicate that the session establishment is complete;

[0031] The first type of data is transmitted with the first node via the session.

[0032] Based on the data transmission method provided by the embodiment of the present disclosure, after the target node receives the fourth message sent by the first node (the fourth message is used to request the establishment of a session for transmitting the first type of data), the target node sends a fifth message to the first node (the fifth message is used to indicate that the session establishment is complete) to confirm the transmission of the first type of data and establish a session for transmitting the first type of data, so that the first node performs subsequent operations based on the fifth message, thereby ensuring the reliability of the first type of data transmission.

[0033] At the same time, one of the first node and the target node is the starting point for transmission of the first type of data, and the other is the end point for transmission of the first type of data. The first type of data does not need to be further transmitted to the cloud for processing, but is only transmitted between the first node and the second node, thereby improving the efficiency of transmission and processing of the first type of data and reducing the overhead during transmission and processing of the first type of data.

[0034] In a sixth aspect, a data transmission device is provided, applied to a first node, the device comprising:

[0035] A sending module, used for sending a first message to the second node, where the first message is used for requesting transmission of first type data;

[0036] A receiving module, used for receiving a second message sent by a second node to respond to the first message;

[0037] The transmission module is used to transmit the first type of data with the second node based on the second message; wherein one of the first node and the second node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

[0038] In a seventh aspect, a data transmission device is provided, which is applied to a second node, and the device includes:

[0039] A receiving module, used for receiving a first message sent by a first node, where the first message is used for requesting transmission of first type data;

[0040] A sending module, used for sending a second message for responding to the first message to the first node;

[0041] The transmission module is used to transmit the first type of data with the first node based on the second message; wherein one of the first node and the second node is the transmission starting point of the first type of data, and the other is the transmission ending point of the first type of data.

[0042] In an eighth aspect, a data transmission device is provided, applied to a first node, the device comprising:

[0043] A sending module, used for sending a first message to the second node, where the first message is used for requesting transmission of first type data;

[0044] A receiving module, used for receiving a second message sent by a second node in response to the first message, wherein the second message includes address information of a target node;

[0045] The transmission module is used to transmit the first type of data to the target node based on the address information of the target node; wherein one of the first node and the target node is the transmission starting point of the first type of data, and the other is the transmission ending point of the first type of data.

[0046] In a ninth aspect, a data transmission device is provided, which is applied to a second node, and the device includes:

[0047] A receiving module, used for receiving a first message sent by a first node, where the first message is used for requesting transmission of first type data;

[0048] A sending module is used to send a second message to the first node in response to the first message; the second message includes address information of the target node; wherein one of the first node and the target node is a transmission starting point for the first type of data, and the other is a transmission end point for the first type of data.

[0049] In a tenth aspect, a data transmission device is provided, which is applied to a target node, and the device includes:

[0050] A receiving module, configured to receive a fourth message sent by the first node, where the fourth message is used to request to establish a session for transmitting the first type of data;

[0051] A sending module, used for sending a fifth message to the first node, where the fifth message is used for indicating that the session establishment is complete;

[0052] The transmission module is used to transmit the first type of data with the first node through a session; wherein one of the first node and the target node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

[0053] In the eleventh aspect, a communication device is provided, comprising: a memory and a processor; the memory and the processor are coupled; the memory is used to store a computer program; and the processor implements the data transmission method of any of the above embodiments when executing the computer program.

[0054] In a twelfth aspect, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the data transmission method of any of the above embodiments is implemented.

[0055] In a thirteenth aspect, a computer program product is provided, which includes computer program instructions, and when the computer program instructions are executed by a processor, the data transmission method of any of the above embodiments is implemented.

[0056] For the specific description of the sixth to thirteenth aspects and their various implementations in the present disclosure, reference can be made to the detailed descriptions in the first to fifth aspects and their various implementations; and for the beneficial effects of the sixth to thirteenth aspects and their various implementations, reference can be made to the analysis of the beneficial effects in the first to fifth aspects and their various implementations, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the present disclosure, the drawings required for use in some embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and a person skilled in the art can also obtain other drawings based on these drawings.

[0058] Figure 1 A schematic diagram of a communication system architecture provided for some embodiments of the present disclosure;

[0059] Figure 2 A functional architecture diagram of an AI air interface transmission model provided in some embodiments of the present disclosure;

[0060] Figure 3 A data transmission diagram provided for some embodiments of the present disclosure;

[0061] Figure 4 A flowchart of a data transmission method provided in some embodiments of the present disclosure;

[0062] Figure 5 A flowchart of another data transmission method provided for some embodiments of the present disclosure;

[0063] Figure 6 A schematic diagram of a protocol stack provided for some embodiments of the present disclosure;

[0064] Figure 7 A schematic diagram of another protocol stack provided for some embodiments of the present disclosure;

[0065] Figure 8 A schematic diagram of a user plane function layer provided in some embodiments of the present disclosure;

[0066] Fig. 9 A schematic diagram of a control plane functional layer provided in some embodiments of the present disclosure;

[0067] Fig.10 A schematic diagram of indication information provided for some embodiments of the present disclosure;

[0068] Fig.11 A schematic diagram of another indication information provided for some embodiments of the present disclosure;

[0069] Fig.12 A schematic diagram of a flexible protocol stack provided for some embodiments of the present disclosure;

[0070] Fig.13 A flowchart of another data transmission method provided for some embodiments of the present disclosure;

[0071] Fig.14 A flowchart of another data transmission method provided for some embodiments of the present disclosure;

[0072] Fig.15 A flowchart of another data transmission method provided for some embodiments of the present disclosure;

[0073] Fig.16 A flowchart of another data transmission method provided for some embodiments of the present disclosure;

[0074] Fig.17 A flowchart of another data transmission method provided for some embodiments of the present disclosure;

[0075] Fig.18 A flowchart of another data transmission method provided for some embodiments of the present disclosure;

[0076] Fig.19A schematic diagram of the structure of a data transmission device provided in some embodiments of the present disclosure;

[0077] Fig. 20 A schematic diagram of the structure of another data transmission device provided in some embodiments of the present disclosure;

[0078] Fig.21 A schematic diagram of the structure of another data transmission device provided in some embodiments of the present disclosure;

[0079] Fig. 22 A schematic diagram of the structure of another data transmission device provided in some embodiments of the present disclosure;

[0080] Fig.23 A schematic diagram of the structure of another data transmission device provided in some embodiments of the present disclosure;

[0081] Fig.24 A schematic diagram of the structure of a data transmission device provided in some embodiments of the present disclosure. DETAILED DESCRIPTION

[0082] The following will be combined with the drawings in the present disclosure to clearly and completely describe the technical solutions in the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0083] It should be noted that, in the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present disclosure should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0084] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0085] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" means one or more, and "a plurality" means two or more.

[0086] The method provided by the embodiments of the present disclosure can be applied to various communication systems. For example, the communication system can be a fifth generation (5G) communication system, a Wi-Fi system, a 3GPP-related communication system, a future evolving communication system (such as a sixth generation (6G) communication system, etc.), or a system integrating multiple systems, etc., without limitation. Figure 1 Taking the communication system 100 as an example, the method provided by the embodiment of the present disclosure is described. Figure 1 It is only a schematic diagram and does not constitute a limitation on the applicable scenarios of the technical solution provided by the present disclosure.

[0087] like Figure 1 As shown, the communication system 100 includes: a first node 110 and a second node 120; wherein the first node 110 and the second node 120 are in communication connection.

[0088] The first node 110 is used for communication, information acquisition, entertainment, etc. In some embodiments, the first node 110 is used to send a first message to the second node 120 (the first message is used to request the transmission of the first type of data), receive a second message sent by the second node 120 to respond to the first message, and transmit the first type of data with the second node 120 based on the second message.

[0089] In some embodiments, one of the first node 110 and the second node 120 is a transmission start point for the first type of data, and the other is a transmission end point for the first type of data.

[0090] In some embodiments, the communication system 100 further includes: a target node 130. The first node 110 is further configured to send a fourth message to the target node 130 (the fourth message is used to request the establishment of a session for transmitting the first type of data), receive a fifth message sent by the target node 130 to indicate that the session establishment is complete, and transmit the first type of data with the target node 130.

[0091] The second node 120 is used for data exchange and communication. In some embodiments, the second node 120 is used to receive a first message sent by the first node 110, send a second message to the first node 110 in response to the first message, and transmit the first type of data with the first node 110 based on the second message.

[0092] In some embodiments, one of the first node and the second node is a base station, and the other is a terminal. The terminal may be a user equipment (UE), such as a mobile phone, a tablet computer, a desktop, a laptop, a handheld computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, and a cellular phone. The first node 110 may also be an augmented reality (AR) or virtual reality (VR) device. The base station may be a base station (gNB) in a 5G system using a centralized distributed architecture, or a base station in a 6G system.

[0093] In some embodiments, a wireless connection may be established between the first node 110 and the second node 120 via a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the 4G standard; or, the wireless air interface is a wireless air interface based on the 5G standard, for example, the wireless air interface is a new air interface; or, the wireless air interface may also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

[0094] The target node 130 is used to receive the fourth message sent by the first node 110 (the fourth message is used to request to establish a session for transmitting the first type of data), send a fifth message to the first node, and transmit the first type of data with the first node through the session.

[0095] In some embodiments, the target node 130 may be a base station or an operation administration and maintenance (OAM) device. The embodiments of the present disclosure do not limit the specific form of the target node 130.

[0096] It should be noted that the system architecture and application scenarios described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. A person of ordinary skill in the art can appreciate that with the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are equally applicable to similar technical problems.

[0097] The future network will be an intelligent network. At present, the processing of data related to some artificial intelligence technologies (such as data involved in AI air interface transmission models, perception data, etc.) is mainly concentrated in the cloud, that is, the data will be uploaded to the cloud via terminals (such as UE) and base stations (such as RAN) and processed by the cloud.

[0098] Among them, the above-mentioned AI air interface transmission model is a model that uses artificial intelligence technology to model, predict and optimize wireless communication channels. This model can analyze a large amount of wireless channel data through deep learning algorithms, thereby improving the efficiency and performance of wireless communication systems. Through the AI ​​air interface transmission model, the wireless channel can be better understood and utilized, thereby improving the reliability and throughput of the communication system. In wireless communication systems, since AI air interface transmission models usually need to be stored and deployed in different locations, the transfer and delivery of models are very important. In this case, the transfer of the model may involve a migration process from the server to the access network or a third-party entity (such as an over-the-top (OTT) server). Through appropriate model transfer and delivery strategies, it can be ensured that the model can be effectively deployed and used when needed, thereby improving the performance and efficiency of the communication system. This also requires comprehensive consideration of factors such as network bandwidth, latency, and security to ensure the reliability and availability of the model. For example, Figure 2 The figure shows the functional architecture of the AI ​​air interface transmission model. The functional architecture includes modules such as data collection, model training, model management, model reasoning, and model storage. In this functional architecture, after the data involved in the AI ​​air interface transmission model is collected, the model can be trained, managed, and reasoned by training, managing, and reasoning the data, and finally the model can be stored.

[0099] However, for air interface-specific AI use cases, it is usually necessary to process a large amount of data in real time. If these massive amounts of data need to be uploaded to the cloud for processing, it will occupy a large amount of network bandwidth and resources, leading to network congestion and increased latency. At the same time, since air interface-specific AI use cases have high requirements for real-time data processing, uploading data to the cloud for processing will cause round-trip data transmission, thereby increasing the latency of data interaction. In summary, if air interface-specific AI use cases upload data to the cloud for processing, the overhead of data transmission and processing will be high.

[0100] Therefore, if the terminal and the base station also have the functions of data transmission and processing (such as data collection, model training and model storage), that is, the entity for data transmission and processing can be the terminal or the base station, the overhead in the data transmission and combing process will be reduced. The data transmission scenarios may be: the terminal requests data (such as data related to the AI ​​air interface transmission model), and the base station sends the trained AI model to the terminal; or, the terminal requests to send data (such as data related to the AI ​​air interface transmission model), and the terminal sends its own trained AI model to the base station; or, the base station requests data (such as data related to the AI ​​air interface transmission model), and the terminal sends its own trained AI model to the base station; or, the base station requests to send data (such as data related to the AI ​​air interface transmission model), and the base station sends its own trained AI air interface transmission model to the terminal. To implement the examples in the above scenarios, the access network architecture needs to have certain capabilities; for example, the terminal and the base station need to have certain computing power, storage and data processing capabilities. The data processing here includes the mapping of AI air interface transmission model data files / streams->service quality flow QoSflow->data radio bearer (DRB), or the mapping of AI air interface transmission model data files / streams->DRB and data segmentation processing. These new functions may be included in the functional entities of the existing air interface protocol stack, or may be implemented through new functional entities. In addition, the protocol stacks of the terminal and the base station must also support the starting and ending points of data transmission as the terminal and the base station. However, in the current protocol stack, after the data is sent to the base station through the terminal, the base station will further send it to the user plane function (UPF), so that the data is not only transmitted and processed between the terminal and the base station. For example, such as Figure 3 As shown, it is a data transmission flow chart (such as data related to the AI ​​air interface transmission model). Figure 3 , it can be seen that in the current protocol stack, after the data is transmitted from the UE to the 5G access network (5G access network, 5G-AN), the transmission does not stop, but will continue to be transmitted to the UPF.

[0101] For the above questions, see Figure 4 , is a flow chart of a data transmission method provided by an embodiment of the present disclosure. Figure 4 As shown, the data transmission method provided in the embodiment of the present disclosure is applied to a first node, comprising the following steps:

[0102] S101. Send a first message to a second node.

[0103] The first message is used to request transmission of first type data.

[0104] In some embodiments, the first message includes at least one of the following: data volume size, data type. Exemplarily, the first message includes: data volume is 1MB, and data type is the first type.

[0105] In some embodiments, the data type further includes a second type, that is, in addition to the first type of data, there is also a second type of data. The second type of data is traditional communication data. Optionally, the traditional communication data can be one or more of voice data, text data, image data, video data, and file data. The embodiments of the present disclosure do not limit the specific content of the second type of data.

[0106] It should be noted that the content included in the above-mentioned first message is only some examples given in the embodiment of the present disclosure. In specific implementation, the content included in the first message may vary according to different actual conditions, and the embodiment of the present disclosure does not limit this.

[0107] In some embodiments, the first message is indicated by at least one of radio resource control (RRC) signaling, medium access control control element (MAC CE), and downlink control information (DCI).

[0108] In some embodiments, the first type of data includes at least one of the following: data generated and / or used by artificial intelligence AI, and perception data.

[0109] It should be noted that the types of the above-mentioned first type of data are only some examples given in the embodiments of the present disclosure. In actual implementation, the types of the first type of data may be more or less than the types given in the above examples. The embodiments of the present disclosure do not limit the types and contents of the first type of data.

[0110] In some embodiments, one of the first node and the second node is a base station, and the other is a terminal.

[0111] It can be understood that when the first node needs to transmit the first type of data to the second node, it will send a first message to the second node so that the first node establishes an association with the second node. At the same time, one of the first node and the second node is a base station and the other is a terminal, so that the first type of data can be transmitted between the base station and the terminal without further uploading to the cloud for processing by the cloud, thereby avoiding the occupation of network bandwidth and resources when the first type of data is uploaded to the cloud, and avoiding the problem of excessive interaction delay caused by round-trip transmission when processing the first type of data, thereby reducing the overhead of the first type of data transmission and processing.

[0112] S102: Receive a second message sent by a second node to respond to the first message.

[0113] In some embodiments, after receiving the first message, the second node generates a second message for responding to the first message based on the content of the first message, and sends the second message to the first node, so that the first node determines that the second node agrees to transmit the first type of data based on the second message.

[0114] In some embodiments, the second message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0115] It can be understood that when the first node needs to transmit the first type of data to the second node, after sending the first message to the second node, it will receive the second message from the second node in response to the first message to confirm the transmission of the first type of data, so that the first node can perform subsequent operations based on the second message (that is, the feedback message of the second node), thereby ensuring the reliability of the first type of data transmission.

[0116] S103. Transmit the first type of data with the second node based on the second message.

[0117] In some embodiments, the above step S103 may be specifically implemented as: transmitting the first type of data to the second node via a wireless bearer between the first node and the second node.

[0118] As an example, the second message includes configuration information of the wireless bearer. When the first node receives the second message, it can establish a wireless bearer with the second node based on the configuration information of the wireless bearer, and transmit the first type of data with the second node through the wireless bearer. After the wireless bearer is established, it can be determined that one of the first node and the second node is the transmission starting point of the first type of data, and the other is the transmission end point of the first type of data, that is, the first type of data will not be further transmitted to the cloud. In some embodiments, the above-mentioned wireless bearer is a wireless bearer dedicated to the first type of data, that is, the wireless bearer is used to transmit the first type of data.

[0119] In some embodiments, the above-mentioned radio bearer is a data radio bearer DRB or a signaling radio bearer SRB. According to the size of the data volume of the first type of data, it can be determined whether the radio bearer is a DRB or an SRB. Exemplarily, when the data volume of the first type of data is greater than a threshold value, the radio bearer is a DRB; or, when the data volume of the first type of data is less than or equal to a threshold value, the radio bearer is an SRB. Optionally, the threshold value may be 10MB.

[0120] As another example, before the first node sends the first message to the second node, the method further includes: establishing a wireless bearer with the second node. That is, when there is a need to transmit the first type of data between the first node and the second node, the first node can first establish a wireless bearer with the second node, and then send the first message to the second node. After receiving the second message sent by the second node, the first node transmits the first type of data with the second node through the wireless bearer.

[0121] It should be noted that in the embodiment of the present disclosure, the wireless bearer can be established before the first node sends the first message, and can also be established before the first node and the second node transmit the first type of data. That is, the establishment time of the wireless bearer can depend on the demand for data transmission between the first node and the second node. The embodiment of the present disclosure does not limit the establishment time of the wireless bearer, which improves the flexibility of wireless bearer establishment.

[0122] In some embodiments, the radio bearer is configured to transmit the first type of data between the first node and the second node, that is, one of the first node and the second node is the transmission starting point of the first type of data, and the other is the transmission termination point of the first type of data. Therefore, when the first node transmits the first type of data to the second node through the radio bearer, the first type of data will only be transmitted between the first node and the second node, and will not flow to other nodes.

[0123] It can be understood that based on the data transmission method provided by the embodiment of the present disclosure, when the first node needs to transmit the first type of data to the second node, it will send a first message to the second node and receive a second message from the second node to respond to the first message, so as to realize the confirmation of the transmission of the first type of data, so that the first node can perform subsequent operations based on the second message (that is, the feedback message of the second node), thereby ensuring the reliability of the first type of data transmission.

[0124] At the same time, in the method provided by the embodiment of the present disclosure, when the first node and the second node transmit the first type of data, one of the first node and the second node is the transmission starting point of the first type of data, and the other is the transmission end point of the first type of data; the first type of data does not need to be further transmitted to the cloud for processing, but is only transmitted between the first node and the second node, which improves the efficiency of the transmission and processing of the first type of data and reduces the overhead during the transmission and processing of the first type of data.

[0125] In some embodiments, Figure 5 As shown, after transmitting the first type of data with the second node, the method further includes: steps S104-S105.

[0126] S104: Receive a third message sent by the second node.

[0127] In some embodiments, the third message is used to indicate that the transmission of the first type of data is completed. After the first node and the second node complete the transmission of the first type of data (for example, after the first network element receives all the first type of data), the second node sends the third message to the first node so that the first node determines that the transmission of the first type of data is completed.

[0128] In some embodiments, the third message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0129] It can be understood that, after the first type of data transmission is completed, the first node can receive the third message sent by the second node in the method provided in the embodiment of the present disclosure, so that the first node and the second node can perceive the transmission status of the first type of data in time.

[0130] S105. Based on the third message, release the radio bearer used to transmit the first type of data.

[0131] As an example, when the first node receives the third message and determines that the first type of data has been transmitted, the radio bearer used to transmit the first type of data can be released. As another example, when the first node is in an inactive state or an idle state, the first node determines that the first type of data has been transmitted, and the first node can release the radio bearer.

[0132] It can be understood that the method provided by the embodiment of the present disclosure is based on establishing a wireless bearer between the first node and the second node, and based on the wireless bearer, transmitting the first type of data, thereby ensuring the transmission starting point and transmission end point of the first type of data, and avoiding the problem that the first type of data will be further transmitted to the cloud, causing pressure on the cloud.

[0133] It should be noted that in the above step S103, the original protocol stack of the first node and the second node is not modified, but the first type of data is transmitted between the first node and the second node based on the wireless bearer. In actual operation, the original protocol stack of the first node and the second node can also be modified so that the first type of data is transmitted between the first node and the second node.

[0134] As a possible implementation method, a new functional layer can be added on top of the original protocol stack of the first node and the second node, that is, a new functional layer (for example, an AI protocol layer, a perception protocol layer, etc.) is configured for the first type of data to ensure that the first type of data is transmitted between the first node and the second node.

[0135] In some embodiments, Figure 6As shown, the protocol stacks of the first node and the second node include a first functional layer for generating and / or processing first type data, a second functional layer for generating and / or processing second type data, a physical layer shared by the first functional layer and the second functional layer, and a data link layer shared by the first functional layer and the second functional layer. The first functional layer is a new functional layer configured for the first type data; the second functional layer is a traditional functional layer in the original protocol stack.

[0136] It can be understood that the method provided by the embodiment of the present disclosure adds a new functional layer on top of the original protocol stack of the first node and the second node, so that the first type of data can be transmitted through the new functional layer, that is, the transmission of the first type of data between the first node and the second node is guaranteed.

[0137] As another possible implementation, in addition to adding a functional layer on top of the original protocol stack of the first node and the second node, an independent protocol stack can also be configured for the first type of data. For example, the application layer, data link layer, and physical layer used by the first type of data all use new functional layers that are completely independent of the original protocol stack, so that the first type of data can be transmitted between the first node and the second node. Optionally, part of the functions of the data link layer can use a new functional layer, and the other part of the functions can be shared with the functional layer of the original protocol stack; part of the functions of the physical layer can use a new functional layer, and the other part of the functions can be shared with the functional layer of the original protocol stack.

[0138] In some embodiments, Figure 7 As shown, the first node and the second node have a first protocol stack for the first type of data and a second protocol stack for the second type of data, the first protocol stack includes a first functional layer, a first data link layer and a first physical layer, and the second protocol stack includes a second functional layer, a second data link layer and a second physical layer; the second type of data is traditional communication data. Among them, the first protocol stack is an independent protocol stack configured for the first type of data.

[0139] It can be understood that, based on the difference between the first type of data and the second type of data, the embodiment of the present disclosure configures a first protocol stack for the first type of data, so that the first type of data is transmitted on the first protocol stack, ensuring that the transmission starting point and transmission end point of the first type of data are the first node and the second node.

[0140] As an example, the first functional layer is a user plane functional layer; Figure 8 As shown, the functions of the user plane function layer include at least one of the following: data collection, data transmission and data processing. At this time, the user plane function layer is similar to the application layer in the traditional protocol stack.

[0141] As another example, the first functional layer is a control plane functional layer; Fig. 9 As shown, the functions of the control plane function layer include at least one of the following: connection control, parameter configuration, model training and model reasoning. At this time, the control plane function layer is similar to the RRC function in the traditional protocol stack.

[0142] In some embodiments, the packet header of the first type of data includes indication information for indicating that the first type of data is transmitted to the first functional layer or the second functional layer. The indication information is indicated by at least one of a preset identifier and an address of a transmission endpoint. As an example, Fig.10 As shown, an N-bit indication may be added to the header of the indication information to indicate that the first type of data is sent to the first functional layer or the second functional layer. In some embodiments, the value of N is related to the number of data exports. For example, if the number of exports is 2, N is 1; if the number of exports is 4, N is 2. Exemplarily, taking N as 1 as an example, if N is 1 and the indication is 1, it indicates that the first type of data is transmitted to the first functional layer; if N is 1 and the indication is 0, it indicates that the first type of data is transmitted to the second functional layer.

[0143] As another example, Fig.11 As shown, an address (address s) can be added to the header of the indication information to indicate that the first type of data is sent to the first functional layer or the second functional layer. Exemplarily, if the address of the header of the indication information is the address of the first functional layer, it indicates that the first type of data is sent to the first functional layer.

[0144] It can be understood that the method provided by the embodiment of the present disclosure can add indication information to the packet header of the first type of data, so that the second node can determine the transmission path of the first type of data based on the indication information after receiving the first type of data, thereby ensuring the transmission of the first type of data between the first node and the second node.

[0145] In some embodiments, in addition to determining the transmission direction of the first type of data based on the indication information of the first type of data packet header, the transmission direction of the first type of data can also be determined based on the radio bearer between the first node and the second node. Exemplarily, if the radio bearer between the first node and the second node is a radio bearer in the original protocol stack, the first type of data is sent to the second functional layer; if the radio bearer between the first node and the second node is a special radio bearer based on the original traditional protocol stack (when configuring the special radio bearer, the protocol function layer used by the special radio bearer will also be configured, for example, the protocol function layer used by the special radio bearer includes the first functional layer), the first type of data is sent to the first functional layer.

[0146] Based on the architecture of the above-mentioned protocol stack, the starting point and the end point of the transmission of the first type of data are the first functional layer. For example, the first type of data can be sent from the first node to the second node, and the second node determines the flow direction of the first type of data by parsing the indication information of the first type of data packet header. For another example, after the first functional layer of the first node generates the first type of data, it can send the generated first type of data to the second node according to an event trigger or periodically. Optionally, after the first functional layer generates the first type of data, it can send the first type of data to the second node every 5S.

[0147] As another possible implementation, in the method provided by the above-mentioned public embodiment, the flow direction of the first type of data is fixed, for example, the first type of data is transmitted along the physical layer (physical layer, PHY) -> medium access control layer MAC -> radio link control layer (radio link control, RLC) -> packet data logical control layer (packet data convergence protocol, PDCP) -> service data adaptation layer (service data adaptation protocol, SDAP) -> UPF or along PHY -> MAC -> RLC -> PDCP -> SDAP -> AI. However, as the functions of the communication system become more and more complex, the starting point and end point of data transmission are also more variable, and the original protocol stack cannot meet the needs of data transmission and processing. Therefore, a more flexible mapping can also be introduced in the protocol stack architecture, that is, each protocol layer can flexibly determine the address of the next hop, so that the first type of data is transmitted between the first node and the second node. Optionally, a more refined functional component can be used to replace the protocol layer, and the next hop address of the component can be used instead of the next hop address of each protocol layer.

[0148] It can be understood that in order to adapt to the functions of more complex communication systems, the method provided by the embodiment of the present disclosure introduces a more flexible mapping in the protocol stack architecture, which allows each protocol layer to flexibly determine the address of the next hop, so as to flexibly determine the transmission starting point and transmission end point of the first type of data.

[0149] In some embodiments, the first type of data is transmitted via a radio bearer, and the configuration information of the radio bearer includes indication information for indicating each protocol layer used by the radio bearer. That is, the second information received by the first node includes the configuration information of the radio bearer; the first node can give the indication information of each protocol layer used by the radio bearer to determine the transmission path of the first type of data. For example, Fig.12As shown, in the flexible protocol stack, the configuration information of the wireless bearer indicates that the protocol layers used by the wireless bearer are F4->F3->F2'->F1' in sequence. Then, when the first node and the second node transmit the first type of data, the configuration information of the wireless bearer is used to transmit the first type of data.

[0150] As another possible implementation, the first type of data and the second type of data may also share the same protocol stack, that is, no new functional layer is added to the original protocol stack, and no new protocol stack is configured for the first type of data. In this case, the protocol stacks of the first node and the second node have a third functional layer, a third physical layer, and a third data link layer for generating and / or processing the first type of data and the second type of data.

[0151] See also Fig.13 , is a flow chart of a data transmission method provided by an embodiment of the present disclosure. Fig.13 As shown, the data transmission method provided in the embodiment of the present disclosure is applied to the second node, and can be specifically implemented as the following steps:

[0152] S201. Receive a first message sent by a first node.

[0153] In some embodiments, the first message is used to request transmission of a first type of data.

[0154] In some embodiments, before receiving the first message sent by the first node, the method further includes: establishing a radio bearer with the first node.

[0155] S202: Send a second message for responding to the first message to the first node.

[0156] S203: Based on the second message, transmit the first type of data with the first node.

[0157] In some embodiments, one of the first node and the second node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

[0158] In some embodiments, Fig.14 As shown, after transmitting the first type of data with the first node based on the second message, the method further includes: steps S204-S205.

[0159] S204. Send a third message to the first node.

[0160] In some embodiments, the third message is used to indicate that the first type of data transmission is completed.

[0161] S205: Based on the third message, release the radio bearer used to transmit the first type of data.

[0162] In some embodiments, the specific implementation of the above steps S201-S204 can refer to the above steps S101-S105, and the embodiments of the present disclosure will not be repeated here.

[0163] It can be understood that based on the data transmission method provided by the embodiment of the present disclosure, after receiving the first message sent by the first node, the second node sends a second message to the first node to respond to the first message, so as to realize the confirmation of the transmission of the first type of data, so that the first node can perform subsequent operations based on the second message (i.e., the feedback message of the second node), thereby ensuring the reliability of the first type of data transmission.

[0164] At the same time, in the method provided by the embodiment of the present disclosure, when the second node and the first node transmit the first type of data, one of the first node and the second node is the transmission starting point of the first type of data, and the other is the transmission end point of the first type of data, so that the first type of data is only transmitted between the first node and the second node, that is, the first type of data does not need to be further uploaded to the cloud but is processed by the cloud, thereby avoiding the occupation of network bandwidth and resources when the first type of data is uploaded to the cloud, and avoiding the problem of excessive interaction delay caused by round-trip transmission when processing the first type of data, thereby reducing the overhead in the transmission and processing of the first type of data.

[0165] The above disclosed embodiments mainly introduce an example of transmitting the first type of data between the first node and the second node. However, in actual implementation, the first type of data may not be limited to being transmitted between the first node and the second node, and the transmission starting point and transmission end point of the first type of data may be flexibly determined according to different actual conditions.

[0166] For the above questions, see Fig.15 , is a flow chart of a data transmission method provided by an embodiment of the present disclosure. Fig.15 As shown, the data transmission method provided in the embodiment of the present disclosure is applied to the first node, and can be specifically implemented as the following steps:

[0167] S301. Send a first message to a second node.

[0168] In some embodiments, the first message is used to request transmission of a first type of data.

[0169] S302: Receive a second message sent by a second node to respond to the first message.

[0170] In some embodiments, the second message includes the address information of the target node. That is, after the first node sends the first message to the second node, the second node can match a suitable target node for the first node based on the content of the first message, such as the data volume of the first type of data, and put the address of the target node into the second message and send it to the first node.

[0171] In some embodiments, the first node and the second node are two different nodes in a terminal, a radio access network (RAN) network element, a core network (CN) network element, and a server. Exemplarily, the first node may be a terminal, and the second node may be a CN network element. When the terminal needs to transmit data with the CN network element, the terminal sends a first message to the CN, and receives a second message sent by the CN network element to respond to the first message, so as to confirm before data transmission.

[0172] In some embodiments, the target node is the second node; or, the target node is another node different from the second node. Exemplarily, the second message includes address information of the second node, or the second message includes address information of another node different from the second node.

[0173] In some embodiments, the target node is any one of a terminal, a RAN network element, a CN network element and a server, and the node types of the target node and the first node are different. Exemplarily, the first node may be a RAN network element, and the target node may be a CN network element.

[0174] In some embodiments, the specific implementation of the above steps S301-S302 can refer to the above steps S101-S102, and the embodiments of the present disclosure will not be repeated here.

[0175] It can be understood that, based on the data transmission method provided by the embodiment of the present disclosure, when the first node needs to transmit the first type of data, it will send a first message to the second node and receive a second message from the second node to respond to the first message, so as to confirm the transmission of the first type of data, so that the first node can perform subsequent operations based on the second message (that is, the feedback message of the second node), thereby ensuring the reliability of the first type of data transmission. At the same time, with the complexity of the functions of the communication system, the starting point and the end point of the data transmission are also more variable. In the method provided by the embodiment of the present disclosure, the target node is the second node; or, the target node is a node other than the second node, so that the type of the target node is more diverse, and the transmission starting point and the transmission end point of the first type of data are more flexible to adapt to the functions of more complex communication systems.

[0176] S303: Transmit first type data to the target node based on the address information of the target node.

[0177] In some embodiments, one of the first node and the target node is a transmission starting point for the first type of data, and the other is a transmission termination point for the first type of data. Exemplarily, the first node, based on the address information of the target node, serves as the transmission starting point for the first type of data and sends the first type of data to the target node.

[0178] In some embodiments, Fig.16 As shown, the above step S303 can be specifically implemented as: steps S3031-S3033.

[0179] S3031. Send a fourth message to the target node based on the address information of the target node.

[0180] In some embodiments, the fourth message is used to request to establish a session for transmitting the first type of data. That is, when the first node needs to transmit the first type of data with the target node, the fourth message is sent to the target node so that the target node responds to the fourth message.

[0181] In some embodiments, the fourth message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0182] S3032. Receive the fifth message sent by the target node.

[0183] In some embodiments, the fifth message is used to indicate that the session establishment is complete. That is, when the first node receives the fifth message sent by the target node, it can be determined that the session establishment between the first node and the target node is complete, and the first node can transmit the first type of data with the target node based on the session.

[0184] In some embodiments, the fifth message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0185] S3033. Transmit the first type of data with the target node through the session.

[0186] It is understandable that in the method provided by the embodiment of the present disclosure, the first node can obtain the address information of the target node from the second node, and based on the address information of the target node, transmit the first type of data with the target node, which can make the transmission starting point and transmission end point of the first type of data transmission more abundant. In addition, one of the first node and the target node is the transmission starting point of the first type of data, and the other is the transmission end point of the first type of data. The first type of data is only transmitted and processed between the first node and the target node, that is, the first type of data does not need to be further uploaded to the cloud, and is processed by the cloud, which avoids the occupation of network bandwidth and resources when uploading the first type of data to the cloud, and avoids the problem of excessive interaction delay caused by round-trip transmission when processing the first type of data, thereby reducing the overhead in the transmission and processing of the first type of data.

[0187] See also Fig.17 , is a flow chart of a data transmission method provided by an embodiment of the present disclosure. Fig.17 As shown, the data transmission method provided in the embodiment of the present disclosure is applied to the second node, and can be specifically implemented as the following steps:

[0188] S401. Receive a first message sent by a first node.

[0189] In some embodiments, the first message is used to request transmission of a first type of data.

[0190] S402: Send a second message for responding to the first message to the first node.

[0191] In some embodiments, the second message includes address information of the target node; wherein, one of the first node and the target node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

[0192] In some embodiments, the specific implementation of the above steps S401-S402 can refer to the specific implementation of the above steps S201-S202, and the embodiments of the present disclosure will not be repeated here.

[0193] It can be understood that based on the data transmission method provided by the embodiment of the present disclosure, after receiving the first message sent by the first node, the second node sends a second message to the first node to respond to the first message, so as to realize the confirmation of the transmission of the first type of data, so that the first node can perform subsequent operations based on the second message (i.e., the feedback message of the second node), thereby ensuring the reliability of the first type of data transmission.

[0194] At the same time, the second message includes the address information of the target node, which enables the first node to transmit the first type of data with the target node, making the transmission start point and transmission end point of the first type of data transmission more abundant. In addition, one of the first node and the target node is the transmission start point of the first type of data, and the other is the transmission end point of the first type of data, which ensures that the first type of data is only transmitted and processed between the first node and the target node, that is, the first type of data does not need to be further uploaded to the cloud and is processed by the cloud, avoiding the occupation of network bandwidth and resources when uploading the first type of data to the cloud, and avoiding the problem of long interaction delay caused by round-trip transmission when processing the first type of data, reducing the overhead in the transmission and processing of the first type of data.

[0195] See also Fig.18 , is a flow chart of a data transmission method provided by an embodiment of the present disclosure. Fig.18 As shown, the data transmission method provided in the embodiment of the present disclosure is applied to the target node, which can be specifically implemented as the following steps:

[0196] S501. Receive a fourth message sent by a first node.

[0197] In some embodiments, the fourth message is used to request establishment of a session for transmitting the first type of data.

[0198] S502: Send a fifth message to the first node.

[0199] In some embodiments, the fifth message is used to indicate that the session establishment is complete.

[0200] S503: Transmit first type data with the first node through a session.

[0201] In some embodiments, one of the first node and the target node is a transmission start point for the first type of data, and the other is a transmission end point for the first type of data.

[0202] In some embodiments, the specific implementation of the above steps S501-S503 can refer to the specific implementation of the above steps S301-S302, and the embodiments of the present disclosure will not be repeated here.

[0203] It can be understood that, based on the data transmission method provided by the embodiment of the present disclosure, after the target node receives the fourth message sent by the first node (the fourth message is used to request the establishment of a session for transmitting the first type of data), the target node sends the fifth message to the first node (the fifth message is used to indicate that the session establishment is complete) to confirm the transmission of the first type of data and establish a session for transmitting the first type of data, so that the first node can perform subsequent operations based on the fifth message, thereby ensuring the reliability of the first type of data transmission.

[0204] At the same time, one of the first node and the target node is the transmission starting point of the first type of data, and the other is the transmission end point of the first type of data, which ensures that the first type of data is only transmitted and processed between the first node and the target node, that is, the first type of data does not need to be further uploaded to the cloud and is processed by the cloud, thereby avoiding the occupation of network bandwidth and resources when the first type of data is uploaded to the cloud, and avoiding the problem of long interaction delay caused by round-trip transmission when processing the first type of data, thereby reducing the overhead in the transmission and processing of the first type of data.

[0205] The above mainly introduces the scheme of the embodiment of the present disclosure from the perspective of the method. It is understandable that in order to realize the above functions, the data transmission device includes at least one of the hardware structure and software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithm steps of each example described in the embodiment disclosed herein, the embodiment of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the embodiment of the present disclosure.

[0206] It is understandable that, in order to realize the above functions, the data transmission device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiments of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0207] The embodiments of the present disclosure may divide the data transmission device into functional modules according to the above method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module. The above integrated modules may be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0208] Fig.19is a schematic diagram of the structure of a data transmission device provided by an embodiment of the present disclosure. The data transmission device is applied to a first node and can execute the data transmission method provided by the above method embodiment. Fig.19 As shown, the data transmission device 200 includes: a sending module 201, a receiving module 202 and a transmission module 203; in some embodiments, the data transmission device 200 also includes: a establishing module 204 and a releasing module 205.

[0209] A sending module 201, configured to send a first message to a second node, where the first message is used to request transmission of first type data;

[0210] The receiving module 202 is used to receive a second message sent by the second node to respond to the first message;

[0211] The transmission module 203 is used to transmit the first type of data with the second node based on the second message; wherein one of the first node and the second node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

[0212] In some embodiments, one of the first node and the second node is a base station, and the other is a terminal.

[0213] In some embodiments, the first type of data includes at least one of the following: data generated and / or used by artificial intelligence AI, and perception data.

[0214] In some embodiments, the first message includes at least one of the following: data size, data type.

[0215] In some embodiments, the first message is indicated by at least one of radio resource control RRC signaling, medium access control control element MAC CE, and downlink control information DCI.

[0216] In some embodiments, the second message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0217] In some embodiments, the transmission module 203 is specifically configured to transmit the first type of data to the second node via a wireless bearer between the first node and the second node.

[0218] In some embodiments, the radio bearer is a data radio bearer DRB or a signaling radio bearer SRB.

[0219] In some embodiments, when the amount of first type data is greater than a threshold value, the radio bearer is a DRB; or, when the amount of first type data is less than or equal to the threshold value, the radio bearer is an SRB.

[0220] In some embodiments, the establishing module 204 is configured to establish a radio bearer with the second node.

[0221] In some embodiments, the second message includes configuration information of the radio bearer.

[0222] In some embodiments, the protocol stack of the first node and the second node includes a first functional layer for generating and / or processing a first type of data, a second functional layer for generating and / or processing a second type of data, a physical layer shared by the first functional layer and the second functional layer, and a data link layer shared by the first functional layer and the second functional layer; the second type of data is traditional communication data.

[0223] In some embodiments, the first node and the second node have a first protocol stack for the first type of data and a second protocol stack for the second type of data, the first protocol stack includes a first functional layer, a first data link layer and a first physical layer, and the second protocol stack includes a second functional layer, a second data link layer and a second physical layer; the second type of data is traditional communication data.

[0224] In some embodiments, the first functional layer is a control plane functional layer; the functions of the control plane functional layer include at least one of the following: connection control, parameter configuration, model training, and model reasoning.

[0225] In some embodiments, the packet header of the first type of data includes indication information for indicating that the first type of data is transmitted to the first functional layer or the second functional layer; the indication information is indicated by at least one of a preset identifier and an address of a transmission endpoint.

[0226] In some embodiments, the first type of data is transmitted via a radio bearer, and configuration information of the radio bearer includes indication information for indicating each protocol layer used by the radio bearer.

[0227] In some embodiments, the protocol stacks of the first node and the second node have a third functional layer, a third physical layer, and a third data link layer for generating and / or processing first type data and second type data; the second type data is traditional communication data.

[0228] In some embodiments, the receiving module 202 is further used to receive a third message sent by the second node, where the third message is used to indicate that the first type of data transmission is completed.

[0229] In some embodiments, the release module 205 is used to release the radio bearer used to transmit the first type of data based on the third message.

[0230] In some embodiments, the third message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0231] Fig. 20is a schematic diagram of the structure of a data transmission device provided by an embodiment of the present disclosure. The data transmission device is applied to the second node and can execute the data transmission method provided by the above method embodiment. Fig. 20 As shown, the data transmission device 300 includes: a receiving module 301 , a sending module 302 , a transmission module 303 , a establishing module 304 and a releasing module 305 .

[0232] A receiving module 301 is configured to receive a first message sent by a first node, where the first message is used to request transmission of first type data;

[0233] A sending module 302, configured to send a second message to the first node in response to the first message;

[0234] The transmission module 303 is used to transmit the first type of data with the first node based on the second message; wherein one of the first node and the second node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

[0235] In some embodiments, one of the first node and the second node is a base station, and the other is a terminal.

[0236] In some embodiments, the first type of data includes at least one of the following: data generated and / or used by AI, and perception data.

[0237] In some embodiments, the first message includes at least one of the following: data size, data type.

[0238] In some embodiments, the first message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0239] In some embodiments, the second message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0240] In some embodiments, the transmission module 303 is specifically configured to transmit the first type of data to the second node via a wireless bearer between the first node and the second node.

[0241] In some embodiments, the radio bearer is a radio bearer dedicated to first type data.

[0242] In some embodiments, the radio bearer is a DRB or an SRB.

[0243] In some embodiments, when the amount of first type data is greater than a threshold value, the radio bearer is a DRB; or, when the amount of first type data is less than or equal to the threshold value, the radio bearer is an SRB.

[0244] In some embodiments, the establishing module 304 is configured to establish a radio bearer with the first node.

[0245] In some embodiments, the second message includes configuration information of the radio bearer.

[0246] In some embodiments, the protocol stack of the first node and the second node includes a first functional layer for generating and / or processing a first type of data, a second functional layer for generating and / or processing a second type of data, a physical layer shared by the first functional layer and the second functional layer, and a data link layer shared by the first functional layer and the second functional layer; the second type of data is traditional communication data.

[0247] In some embodiments, the first node and the second node have a first protocol stack for the first type of data and a second protocol stack for the second type of data, the first protocol stack includes a first functional layer, a first data link layer and a first physical layer, and the second protocol stack includes a second functional layer, a second data link layer and a second physical layer; the second type of data is traditional communication data.

[0248] In some embodiments, the first functional layer is a user plane functional layer; the functions of the user plane functional layer include at least one of the following: data collection, data transmission and data processing.

[0249] In some embodiments, the first functional layer is a control plane functional layer; the functions of the control plane functional layer include at least one of the following: connection control, parameter configuration, model training, and model reasoning.

[0250] In some embodiments, the packet header of the first type of data includes indication information for indicating that the first type of data is transmitted to the first functional layer or the second functional layer; the indication information is indicated by at least one of a preset identifier and an address of a transmission endpoint.

[0251] In some embodiments, the first type of data is transmitted via a radio bearer, and configuration information of the radio bearer includes indication information for indicating each protocol layer used by the radio bearer.

[0252] In some embodiments, the protocol stacks of the first node and the second node have a third functional layer, a third physical layer, and a third data link layer for generating and / or processing first type data and second type data; the second type data is traditional communication data.

[0253] In some embodiments, the sending module 302 is further used to send a third message to the first node, where the third message is used to indicate that the first type of data transmission is completed.

[0254] In some embodiments, the release module 305 is used to release the radio bearer used to transmit the first type of data based on the third message.

[0255] In some embodiments, the third message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0256] Fig.21 is a schematic diagram of the structure of a data transmission device provided by an embodiment of the present disclosure. The data transmission device is applied to a first node and can execute the data transmission method provided by the above method embodiment. Fig.21 As shown, the data transmission device 400 includes: a sending module 401, a receiving module 402 and a transmission module 403.

[0257] A sending module 401 is used to send a first message to a second node, where the first message is used to request transmission of a first type of data;

[0258] The receiving module 402 is used to receive a second message sent by the second node to respond to the first message, where the second message includes address information of the target node;

[0259] The transmission module 403 is used to transmit the first type of data to the target node based on the address information of the target node; wherein one of the first node and the target node is the transmission starting point of the first type of data, and the other is the transmission ending point of the first type of data.

[0260] In some embodiments, the first node and the second node are two different nodes among a terminal, a RAN network element, a CN network element and a server.

[0261] In some embodiments, the target node is any one of a terminal, a RAN network element, a CN network element and a server; the node type of the target node and the first node are different.

[0262] In some embodiments, the target node is the second node; or, the target node is another node different from the second node.

[0263] In some embodiments, the transmission module 403 is specifically used to send a fourth message to the target node based on the address information of the target node, the fourth message is used to request to establish a session for transmitting the first type of data; receive a fifth message sent by the target node, the fifth message is used to indicate that the session establishment is complete; and transmit the first type of data with the target node through the session.

[0264] In some embodiments, the first type of data includes at least one of the following: data generated and / or used by AI, and perception data.

[0265] In some embodiments, the first message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0266] In some embodiments, the second message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0267] In some embodiments, the fourth message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0268] In some embodiments, the fifth message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0269] Fig. 22 is a schematic diagram of the structure of a data transmission device provided by an embodiment of the present disclosure. The data transmission device is applied to the second node and can execute the data transmission method provided by the above method embodiment. Fig. 22 As shown, the data transmission device 500 includes: a receiving module 501 and a sending module 502.

[0270] A receiving module 501 is configured to receive a first message sent by a first node, where the first message is used to request transmission of first type data;

[0271] The sending module 502 is used to send a second message to the first node in response to the first message; the second message includes the address information of the target node; wherein, one of the first node and the target node is the transmission starting point of the first type of data, and the other is the transmission ending point of the first type of data.

[0272] In some embodiments, the first node and the second node are two different nodes among a terminal, a RAN network element, a CN network element and a server.

[0273] In some embodiments, the target node is any one of a terminal, a RAN network element, a CN network element and a server; the node type of the target node and the first node are different.

[0274] In some embodiments, the first message includes at least one of the following: data size, data type.

[0275] In some embodiments, the first message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0276] In some embodiments, the second message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0277] Fig.23 is a schematic diagram of the structure of a data transmission device provided by an embodiment of the present disclosure. The data transmission device is applied to a target node and can execute the data transmission method provided by the above method embodiment. Fig.23As shown, the data transmission device 600 includes: a receiving module 601, a sending module 602 and a transmission module 603.

[0278] A receiving module 601 is configured to receive a fourth message sent by a first node, where the fourth message is used to request establishment of a session for transmitting first type data;

[0279] A sending module 602 is used to send a fifth message to the first node, where the fifth message is used to indicate that the session establishment is complete;

[0280] The transmission module 603 is used to transmit the first type of data with the first node through a session; wherein one of the first node and the target node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

[0281] In some embodiments, the first node and the second node are two different nodes among a terminal, a RAN network element, a CN network element and a server.

[0282] In some embodiments, the target node is any one of a terminal, a RAN network element, a CN network element and a server; the node type of the target node and the first node are different.

[0283] In some embodiments, the first type of data includes at least one of the following: data generated and / or used by AI, and perception data.

[0284] In some embodiments, the fourth message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0285] In some embodiments, the fifth message is indicated by at least one of RRC signaling, MAC CE, and DCI.

[0286] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the embodiments of the present disclosure provide a possible structure of the data transmission device involved in the above-mentioned embodiments. Fig.24 As shown, the data transmission device 700 includes: a processor 702 and a bus 704. Optionally, the data transmission device 700 may further include a memory 701; optionally, the data transmission device 700 may further include a communication interface 703.

[0287] The processor 702 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 702 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 702 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0288] The communication interface 703 is used to connect with other devices via a communication network, which may be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0289] The memory 701 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0290] As a possible implementation, the memory 701 may exist independently of the processor 702, and the memory 701 may be connected to the processor 702 via a bus 704 to store instructions or program codes. When the processor 702 calls and executes the instructions or program codes stored in the memory 701, the data transmission method provided in the embodiment of the present disclosure can be implemented.

[0291] In another possible implementation, the memory 701 may also be integrated with the processor 702 .

[0292] The bus 704 may be an extended industry standard architecture (EISA) bus, etc. The bus 704 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.24 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0293] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium), which stores computer program instructions. When the computer program instructions are executed on a computer, the computer executes the data transmission method described in any of the above embodiments.

[0294] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or magnetic tapes, etc.), optical disks (e.g., compact disks (CD), digital versatile disks (DVD), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0295] An embodiment of the present disclosure provides a computer program product including instructions. When the computer program product is run on a computer, the computer is enabled to execute the data transmission method described in any one of the above embodiments.

[0296] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A data transmission method, characterized in that: Applied to the first node, the method comprises: Sending a first message to the second node, where the first message is used to request transmission of first type data; receiving a second message sent by the second node in response to the first message; Based on the second message, the first type of data is transmitted to the second node; wherein, one of the first node and the second node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

2. The method according to claim 1, characterized in that One of the first node and the second node is a base station, and the other is a terminal.

3. The method according to claim 1, characterized in that The first type of data includes at least one of the following: data generated and / or used by artificial intelligence AI, and perception data.

4. The method according to claim 1, characterized in that: The first message includes at least one of the following: data volume and data type.

5. The method according to claim 1, characterized in that The first message is indicated by at least one of radio resource control RRC signaling, medium access control control element MAC CE, and downlink control information DCI.

6. The method according to claim 1, characterized in that The second message is indicated by at least one of RRC signaling, MAC CE, and DCI.

7. The method according to claim 1, characterized in that The transmitting the first type of data with the second node includes: The first type of data is transmitted to the second node via a wireless bearer between the first node and the second node.

8. The method according to claim 7, characterized in that The radio bearer is a radio bearer dedicated to the first type of data.

9. The method according to claim 7, characterized in that: The radio bearer is a data radio bearer DRB or a signaling radio bearer SRB.

10. The method according to claim 9, characterized in that When the data volume of the first type of data is greater than a threshold value, the radio bearer is a DRB; or, when the data volume of the first type of data is less than or equal to the threshold value, the radio bearer is an SRB.

11. The method according to claim 7, characterized in that Before sending the first message to the second node, the method further includes: The radio bearer is established with the second node.

12. The method according to claim 7, characterized in that The second message includes configuration information of the radio bearer.

13. The method according to claim 1, characterized in that The protocol stack of the first node and the second node includes a first functional layer for generating and / or processing the first type of data, a second functional layer for generating and / or processing the second type of data, a physical layer shared by the first functional layer and the second functional layer, and a data link layer shared by the first functional layer and the second functional layer; the second type of data is traditional communication data.

14. The method according to claim 1, characterized in that The first node and the second node are equipped with a first protocol stack for first type data and a second protocol stack for second type data, the first protocol stack includes a first functional layer, a first data link layer and a first physical layer, the second protocol stack includes a second functional layer, a second data link layer and a second physical layer; the second type data is traditional communication data.

15. The method according to claim 13 or 14, characterized in that The first functional layer is a user plane functional layer; the functions of the user plane functional layer include at least one of the following: data collection, data transmission and data processing.

16. The method according to claim 13 or 14, characterized in that The first functional layer is a control plane functional layer; the functions of the control plane functional layer include at least one of the following: connection control, parameter configuration, model training and model reasoning.

17. The method according to claim 13 or 14, characterized in that The packet header of the first type of data includes indication information for indicating that the first type of data is transmitted to the first functional layer or the second functional layer; the indication information is indicated by at least one of a preset identifier and an address of the transmission endpoint.

18. The method according to claim 14, characterized in that The first type of data is transmitted via a radio bearer, and the configuration information of the radio bearer includes indication information for indicating each protocol layer used by the radio bearer.

19. The method according to claim 1, characterized in that The protocol stacks of the first node and the second node include a third functional layer, a third physical layer and a third data link layer for generating and / or processing the first type of data and the second type of data; the second type of data is traditional communication data.

20. The method according to claim 1, characterized in that The method further comprises: A third message sent by the second node is received, where the third message is used to indicate that the first type of data transmission is completed.

21. The method according to claim 20, characterized in that The method further comprises: Based on the third message, a radio bearer used to transmit the first type of data is released.

22. The method according to claim 20, characterized in that The third message is indicated by at least one of RRC signaling, MAC CE, and DCI.

23. A data transmission method, characterized in that: Applied to the second node, the method comprises: Receiving a first message sent by a first node, where the first message is used to request transmission of first type data; Sending a second message to the first node in response to the first message; Based on the second message, the first type of data is transmitted with the first node; wherein, one of the first node and the second node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

24. The method according to claim 23, characterized in that One of the first node and the second node is a base station, and the other is a terminal.

25. The method according to claim 23, characterized in that The first type of data includes at least one of the following: data generated and / or used by AI, and perception data.

26. The method according to claim 23, characterized in that The first message includes at least one of the following: data volume and data type.

27. The method according to claim 23, characterized in that The first message is indicated by at least one of RRC signaling, MAC CE, and DCI.

28. The method according to claim 23, characterized in that The second message is indicated by at least one of RRC signaling, MAC CE, and DCI.

29. The method according to claim 23, characterized in that The transmitting the first type of data with the first node includes: The first type of data is transmitted to the second node via a wireless bearer between the first node and the second node.

30. The method according to claim 29, characterized in that The radio bearer is a radio bearer dedicated to the first type of data.

31. The method according to claim 29, characterized in that The radio bearer is a DRB or an SRB.

32. The method according to claim 31, characterized in that When the data volume of the first type of data is greater than a threshold value, the radio bearer is a DRB; or, when the data volume of the first type of data is less than or equal to the threshold value, the radio bearer is an SRB.

33. The method according to claim 29, characterized in that Before receiving the first message sent by the first node, the method further includes: The radio bearer is established with the first node.

34. The method according to claim 29, characterized in that The second message includes configuration information of the radio bearer.

35. The method according to claim 23, characterized in that The protocol stack of the first node and the second node includes a first functional layer for generating and / or processing the first type of data, a second functional layer for generating and / or processing the second type of data, a physical layer shared by the first functional layer and the second functional layer, and a data link layer shared by the first functional layer and the second functional layer; the second type of data is traditional communication data.

36. The method according to claim 23, characterized in that The first node and the second node are equipped with a first protocol stack for first type data and a second protocol stack for second type data, the first protocol stack includes a first functional layer, a first data link layer and a first physical layer, the second protocol stack includes a second functional layer, a second data link layer and a second physical layer; the second type data is traditional communication data.

37. The method according to claim 35 or 36, characterized in that The first functional layer is a user plane functional layer; the functions of the user plane functional layer include at least one of the following: data collection, data transmission and data processing.

38. The method according to claim 35 or 36, characterized in that The first functional layer is a control plane functional layer; the functions of the control plane functional layer include at least one of the following: connection control, parameter configuration, model training and model reasoning.

39. The method according to claim 35 or 36, characterized in that The packet header of the first type of data includes indication information for indicating that the first type of data is transmitted to the first functional layer or the second functional layer; the indication information is indicated by at least one of a preset identifier and an address of the transmission endpoint.

40. The method according to claim 36, characterized in that The first type of data is transmitted via a radio bearer, and the configuration information of the radio bearer includes indication information for indicating each protocol layer used by the radio bearer.

41. The method according to claim 23, characterized in that The protocol stacks of the first node and the second node include a third functional layer, a third physical layer and a third data link layer for generating and / or processing the first type of data and the second type of data; the second type of data is traditional communication data.

42. The method according to claim 23, characterized in that The method further comprises: A third message is sent to the first node, where the third message is used to indicate that the first type of data transmission is completed.

43. The method according to claim 42, characterized in that The method further comprises: Based on the third message, a radio bearer used to transmit the first type of data is released.

44. The method according to claim 42, characterized in that The third message is indicated by at least one of RRC signaling, MAC CE, and DCI.

45. A data transmission method, characterized in that: Applied to the first node, the method comprises: Sending a first message to the second node, where the first message is used to request transmission of first type data; receiving a second message sent by the second node in response to the first message, wherein the second message includes address information of a target node; Based on the address information of the target node, the first type of data is transmitted to the target node; wherein, one of the first node and the target node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

46. ​​The method according to claim 45, characterized in that The first node and the second node are two different nodes in a terminal, a radio access network RAN ​​network element, a core network CN network element and a server.

47. The method according to claim 45, characterized in that The target node is any one of a terminal, a RAN network element, a CN network element and a server; the target node and the first node are of different node types.

48. The method according to claim 45, characterized in that The target node is the second node; or, the target node is another node different from the second node.

49. The method according to claim 45, characterized in that The transmitting the first type of data to the target node based on the address information of the target node includes: Based on the address information of the target node, sending a fourth message to the target node, where the fourth message is used to request to establish a session for transmitting the first type of data; receiving a fifth message sent by the target node, where the fifth message is used to indicate that establishment of the session is complete; The first type of data is transmitted to the target node through the session.

50. The method of claim 45, wherein: The first type of data includes at least one of the following: data generated and / or used by AI, and perception data.

51. The method according to claim 45, characterized in that The first message includes at least one of the following: data volume and data type.

52. The method of claim 45, wherein: The first message is indicated by at least one of RRC signaling, MAC CE, and DCI.

53. The method according to claim 45, characterized in that The second message is indicated by at least one of RRC signaling, MAC CE, and DCI.

54. The method according to claim 49, characterized in that The fourth message is indicated by at least one of RRC signaling, MAC CE, and DCI.

55. The method according to claim 49, characterized in that The fifth message is indicated by at least one of RRC signaling, MAC CE, and DCI.

56. A data transmission method, characterized in that: Applied to the second node, the method comprises: Receiving a first message sent by a first node, where the first message is used to request transmission of first type data; A second message for responding to the first message is sent to the first node; the second message includes address information of a target node; wherein one of the first node and the target node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

57. The method according to claim 56, characterized in that The first node and the second node are two different nodes among a terminal, a RAN network element, a CN network element and a server.

58. The method according to claim 56, characterized in that The target node is any one of a terminal, a RAN network element, a CN network element and a server; the target node and the first node are of different node types.

59. The method according to claim 56, characterized in that The first type of data includes at least one of the following: data generated and / or used by AI, and perception data.

60. The method of claim 56, wherein: The first message includes at least one of the following: data volume and data type.

61. The method according to claim 56, characterized in that The first message is indicated by at least one of RRC signaling, MAC CE, and DCI.

62. The method according to claim 56, characterized in that The second message is indicated by at least one of RRC signaling, MAC CE, and DCI.

63. A data transmission method, characterized in that: Applied to a target node, the method comprises: receiving a fourth message sent by the first node, where the fourth message is used to request establishment of a session for transmitting the first type of data; Sending a fifth message to the first node, where the fifth message is used to indicate that the session establishment is complete; The first type of data is transmitted with the first node through the session; wherein, one of the first node and the target node is a transmission starting point for the first type of data, and the other is a transmission ending point for the first type of data.

64. The method according to claim 63, characterized in that The first node and the second node are two different nodes among a terminal, a RAN network element, a CN network element and a server.

65. The method according to claim 63, characterized in that The target node is any one of a terminal, a RAN network element, a CN network element and a server; the target node and the first node are of different node types.

66. The method according to claim 63, characterized in that The first type of data includes at least one of the following: data generated and / or used by AI, and perception data.

67. The method according to claim 63, characterized in that The fourth message is indicated by at least one of RRC signaling, MAC CE, and DCI.

68. The method according to claim 63, characterized in that The fifth message is indicated by at least one of RRC signaling, MAC CE, and DCI.

69. A communication device, characterized in that: include: a processor and a memory for storing instructions executable by the processor; The processor is configured to execute the instructions so that the communication device performs the data transmission method as described in any one of claims 1 to 68.

70. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is caused to execute the data transmission method according to any one of claims 1 to 68.

Images