WO2025044082A1 - Data transmission method, device, and storage medium - Google Patents

Abstract

Disclosed in the present application are a data transmission method, a device, and a storage medium. The data transmission method comprises: by means of a sending end adaptation layer, packaging target service data to obtain a target packaging packet, and sending the target packaging packet to a sending end physical layer; and, by means of the sending end physical layer, determining a target time-frequency domain parameter corresponding to the target packaging packet, and on the basis of a target time-frequency domain resource corresponding to the target time-frequency domain parameter, sending the target packaging packet to a receiving end.

Description

Data transmission method, device and storage medium

This application claims priority to Chinese patent application No. 202311128351.6 filed on August 30, 2023, the entire contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the technical field of data transmission, and in particular to a data transmission method, device and storage medium.

Background Art

In wireless communication technology, data transmission needs to be carried out through multiple data link layers in the protocol stack data transmission model. However, through multi-layer encapsulation processing, data transmission latency will increase, making wireless communication technology difficult to apply in scenarios with extremely high latency requirements.

Technical issues

The main purpose of this application is to provide a data transmission method, device and storage medium, aiming to solve the technical problem that the existing data transmission method needs to go through multi-layer encapsulation processing, which will increase the data transmission delay and make it difficult to apply wireless communication technology in scenarios with extremely high delay requirements.

Technical Solutions

To achieve the above purpose, this application adopts the following technical solutions:

In a first aspect, the present application provides a data transmission method, applied to a sending end, the method comprising:

The target service data is encapsulated through the transmission end adaptation layer to obtain a target encapsulation packet, and the target encapsulation packet is sent to the transmission end physical layer;

The target time-frequency domain parameters corresponding to the target encapsulation packet are determined through the physical layer of the transmitting end, and the target encapsulation packet is sent to the receiving end based on the target time-frequency domain resources corresponding to the target time-frequency domain parameters.

In one embodiment, the step of encapsulating target service data through a transmitting end adaptation layer to obtain a target encapsulation packet, and sending the target encapsulation packet to a transmitting end physical layer includes:

Through the sending end adaptation layer, it is determined whether the target service corresponding to the target service data is a delay-sensitive service, and the target service data is encapsulated to obtain a target encapsulation packet;

If the target service is a delay-sensitive service, the target encapsulation packet is sent to the physical layer of the transmitting end.

In one embodiment, before the step of determining target time-frequency domain parameters corresponding to the target encapsulation packet through the physical layer of the transmitting end, and sending the target encapsulation packet to the receiving end based on the target time-frequency domain resources corresponding to the target time-frequency domain parameters, the method further includes:

According to the service attributes corresponding to each delay-sensitive service, frequency domain resources and time domain resources are allocated to each delay-sensitive service, and time-frequency domain parameters corresponding to each delay-sensitive service are obtained.

In one embodiment, the step of encapsulating the target service data through the transmitting end adaptation layer to obtain a target encapsulation packet includes:

Through the sending end adaptation layer, an adaptation layer subheader is added to the target service data to obtain a target encapsulation packet.

In one embodiment, the step of determining target time-frequency domain parameters corresponding to a target encapsulation packet through a physical layer of a transmitting end, and sending the target encapsulation packet to a receiving end based on target time-frequency domain resources corresponding to the target time-frequency domain parameters includes:

Add error packet detection information to the target encapsulation packet through the physical layer of the sending end to obtain the encapsulation packet to be transmitted;

The target time-frequency domain parameters corresponding to the encapsulated packet to be transmitted are determined through the physical layer of the transmitting end, and the encapsulated packet to be transmitted is sent to the receiving end based on the target time-frequency domain resources corresponding to the target time-frequency domain parameters.

In a second aspect, the present application further provides a data transmission method, applied to a receiving end, the method comprising:

The target encapsulation packet is received through the receiving end physical layer based on the target time-frequency domain resources, and the target encapsulation packet is sent to the receiving end adaptation layer based on the target time-frequency domain parameters corresponding to the target time-frequency domain resources; the target encapsulation packet is sent to the sending end physical layer after the sending end encapsulates the target service data through the sending end adaptation layer, and is sent through the sending end physical layer based on the target time-frequency domain parameters corresponding to the target encapsulation packet;

The target encapsulation packet is parsed through the receiving end adaptation layer to obtain the target business data.

In one embodiment, the step of receiving a target encapsulation packet based on a target time-frequency domain resource through a receiving end physical layer, and sending the target encapsulation packet to a receiving end adaptation layer based on a target time-frequency domain parameter corresponding to the target time-frequency domain resource includes:

Receiving the target encapsulation packet based on the target time-frequency domain resources through the receiving end physical layer;

If it is determined that the target service corresponding to the target encapsulation packet is a delay-sensitive service according to the target time-frequency domain parameters corresponding to the target time-frequency domain resources, the target encapsulation packet is sent to the receiving end adaptation layer.

In one embodiment, before the step of receiving the target encapsulation packet through the receiving end physical layer based on the target time-frequency domain resources, the method further includes:

The receiving end physical layer receives the time-frequency domain parameters corresponding to each delay-sensitive service sent by the transmitting end. The time-frequency domain parameters are obtained by allocating frequency domain resources and time domain resources to each delay-sensitive service according to the service attributes corresponding to each delay-sensitive service.

In a third aspect, the present application also provides a data transmission device, comprising: a memory, a processor, and a data transmission program stored in the memory and executable on the processor, the data transmission program being configured to implement the steps of any of the above-mentioned data transmission methods.

In a fourth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of any of the above-mentioned data transmission methods are implemented.

Beneficial Effects

The present application provides a data transmission method, device and storage medium. After the target service data is encapsulated once by the transmission end adaptation layer, a target encapsulation package is obtained, the target time-frequency domain parameters of the target encapsulation package are determined by the transmission end physical layer, and the target encapsulation package is sent to the receiving end based on the target time-frequency domain resources corresponding to the target time-frequency domain parameters.

Therefore, the present application only encapsulates the service data through a layer of transmitting-end adaptation layer, and transmits data based on the time-frequency domain resources corresponding to the encapsulation package. Compared with multi-layer encapsulation processing of service data, by reducing the protocol layers experienced by the service data at the transmitting end, the data interaction delay between layers and the data encapsulation delay within the layer are reduced, thereby reducing the data transmission delay, so that wireless communication technology can be widely used in scenarios with extremely high delay requirements.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

FIG1 is a schematic structural diagram of an embodiment of a data transmission device of the present application;

FIG2 is a schematic diagram of a flow chart of a first embodiment of a data transmission method of the present application;

FIG3 is a schematic diagram of a data encapsulation process of an implementation method of the present invention;

FIG4 is a schematic diagram of an ACK/NACK field according to an implementation method of the present application for data transmission;

FIG5 is a schematic diagram of an exemplary ACK/NACK field;

FIG. 6 is a schematic diagram of a data transmission path of an implementation method of the present application.

The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

Embodiments of the present invention

In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

In this application, the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a device or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a device or system. In the absence of more restrictions, an element defined by the sentence "comprising..." does not exclude the presence of other identical elements in the device or system including the element.

OSI (Open System Interconnect) defines a seven-layer model of network interconnection (including physical layer, data link layer, network layer, transport layer, session layer, presentation layer, and application layer). Each layer has a corresponding network protocol. When data is transmitted between layers, the corresponding network protocol will be applied to encapsulate (sender) or decapsulate (receiver) the data in the data format agreed upon by the protocol.

The TCP/IP protocol (Transmission Control Protocol/Internet Protocol) refers to a protocol suite that can realize information transmission between multiple different networks. It includes not only TCP and IP protocols, but also FTP, SMTP, UDP and other protocols. It is called TCP/IP protocol just because TCP and IP are the most representative in TCP/IP protocol. The TCP/IP protocol refers to the OSI architecture to a certain extent. In the TCP/IP protocol, the OSI seven-layer model is simplified to a four-layer model (including application layer, transport layer, network layer and network interface layer).

The protocol layering of LTE (Long Term Evolution) technology and NR (New Radio) technology defined by 3GPP (3rd Generation Partnership Project) also draws on the OSI seven-layer model. The protocol stack layering on the wireless access network side mainly refers to the data link layer and physical layer of the OSI seven-layer model.

The LTE and NR access layer protocol stacks further subdivide the data link layer in the OSI seven-layer model into:

SDAP (Service Data Adaptation Protocol) layer: Service Data Adaptation Protocol layer (only available in NR);

PDCP (Packet Data Convergence Protocol) layer: Packet data convergence protocol layer;

RLC (Radio Link Control) layer: radio link control layer;

MAC (Media Access Control) layer: Media access control layer.

When the user's business data packet is transmitted from the application layer to the access network, it will be processed by the above layers in turn, and the corresponding protocol header will be added at each layer; after the physical layer at the receiving end receives the data from the air interface, it needs to remove the protocol headers added by each layer in turn, obtain the final data packet, and submit it to the application layer to send it to the corresponding application service.

It can be seen that the above-mentioned layered protocol architecture decomposes data during network interaction. The layers interact through interfaces and each layer is independent of each other, which provides better flexibility for the standardization and implementation of each layer technology. At the same time, the layered structure also brings a lot of protocol encapsulation (sender) and decapsulation (receiver). That is, the data arriving from the upper layer needs to add a protocol header to this layer before being delivered to the next layer. The data received from the lower layer needs to parse the header of this layer before being delivered to the upper layer. In this way, the service data needs to be encapsulated and parsed multiple times. The behavior of adding headers at the sender and removing headers at the receiver not only increases the data processing delay, but also reduces the utilization of air interface resources and increases the complexity of software implementation.

In view of the technical problem that the existing data transmission method needs to be processed through multi-layer encapsulation, which will increase the data transmission delay, making it difficult to apply wireless communication technology in scenarios with extremely high delay requirements, this application provides a data transmission method, and the overall idea is as follows:

The method includes: encapsulating target service data through a transmitting end adaptation layer to obtain a target encapsulation package, and sending the target encapsulation package to a transmitting end physical layer; determining target time-frequency domain parameters corresponding to the target encapsulation package through the transmitting end physical layer, and sending the target encapsulation package to a receiving end based on target time-frequency domain resources corresponding to the target time-frequency domain parameters.

The present application provides a data transmission method, which encapsulates service data through only one transmitter adaptation layer, and transmits data based on the time-frequency domain resources corresponding to the encapsulation packet. Compared with multi-layer encapsulation processing of service data, by reducing the protocol layers experienced by the service data at the transmitter, the data interaction delay between layers and the data encapsulation delay within the layer are reduced, thereby reducing the data transmission delay, so that wireless communication technology can be widely used in scenarios with extremely high delay requirements.

The data transmission method, device and storage medium used in the implementation of the technology of this application are described in detail below:

Refer to Figure 1, which is a structural diagram of an embodiment of a data transmission device of the present application.

As shown in FIG1 , the device may include: a processor 1001, such as a CPU, a user interface 1003, a memory 1005, and a communication bus 1002. The communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include user-side electronic devices such as smart phones, tablet devices, and PDAs (Personal Digital Assistants). Optionally, the user interface 1003 may also be a display screen (Display), an input unit such as a keyboard (Keyboard), etc. The memory 1005 may be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

It is understandable that the device may further include a network interface 1004, which may include a standard wired interface, a wireless interface (such as a WI-FI interface). In one embodiment, the device may further include an RF (Radio Frequency) circuit, a sensor, an audio circuit, a WiFi module, and the like.

Those skilled in the art will appreciate that the device structure shown in FIG. 1 does not constitute a limitation on the device, and may include more or fewer components than shown, or a combination of certain components, or a different arrangement of components.

The data transmission method, device and storage medium of the present application are described in detail below in conjunction with the accompanying drawings and specific implementation methods.

Based on the above hardware structure but not limited to the above hardware structure, referring to Figures 2 to 6, Figure 1 is a structural schematic diagram of an implementation manner of a data transmission device of the present application, Figure 2 is a flow diagram of a first embodiment of a data transmission method of the present application, Figure 3 is a data encapsulation process diagram of an implementation manner of a data transmission method of the present application, Figure 4 is an Ack or Nack domain schematic diagram of an implementation manner of a data transmission method of the present application, Figure 5 is an exemplary Ack or Nack domain schematic diagram, and Figure 6 is a data transmission path schematic diagram of an implementation manner of a data transmission method of the present application.

As shown in FIG. 2 , this embodiment provides a data transmission method, which may include:

Step S100: encapsulate the target service data through the transmission end adaptation layer to obtain a target encapsulation packet, and send the target encapsulation packet to the transmission end physical layer.

In this embodiment, the execution subject may be a data transmission device as shown in FIG. 1 , and the data transmission device may be a physical server including an independent host, or may be a virtual server carried by a host cluster.

It can be understood that in a wireless communication system, a data transmission device may include a transmitting end and a receiving end. The transmitting end encapsulates the target service data to obtain a target encapsulation package and sends it to the receiving end, and the receiving end receives the target encapsulation package and parses the target encapsulation package to obtain the target service data. It should be noted that in this embodiment, the transmitting end performs steps S100-S200, and the receiving end performs steps S300-S400.

The transmitting end may include a transmitting end application layer for receiving target service data from the user end. The target service data may include service attribute information of any service such as motion control service in industries such as industrial automation. The service attribute information may include service type, service identifier and service parameters. The service type may include motion control instructions and human-computer interaction instructions, etc. The service identifier may indicate an integer value of a group of service parameter combinations, and the service parameters may include service packet size, service cycle and block error rate, etc.

The transmitter may also include a transmitter adaptation layer and a transmitter physical layer (PHY). The transmitter adaptation layer may be a sublayer of the data link layer (DLL), and the transmitter physical layer may be wirelessly connected to the receiver. The transmitter adaptation layer may encapsulate the target service data of the target service to obtain a target encapsulation packet, and send the target encapsulation packet to the transmitter physical layer, which transmits the target encapsulation packet to the receiver through the transmitter physical layer.

As a specific implementation, step S100 may include:

Step S110: determining, through the transmission end adaptation layer, whether the target service corresponding to the target service data is a delay-sensitive service, encapsulating the target service data to obtain a target encapsulation package.

Step S120: If the target service is a delay-sensitive service, the target encapsulation packet is sent to the physical layer of the transmitting end.

In this embodiment, the target service may include a delay-sensitive service with high real-time requirements and a non-delay-sensitive service without real-time requirements. The transmission end adaptation layer can not only encapsulate the target service data, but also identify whether the target service is a delay-sensitive service based on the service attribute information in the target service data, thereby directly sending the service data corresponding to the delay-sensitive service to the transmission end physical layer for transmission, and sending the service data corresponding to the non-delay-sensitive service to the transmission end MAC (Media Access Control) layer, which is then transmitted after multiple layers of encapsulation. This provides different data encapsulation and transmission methods for the service data of delay-sensitive services and the service data of non-delay-sensitive services.

As a specific implementation, step S100 may further include: adding an adaptation layer subheader to the target service data through the transmission end adaptation layer to obtain a target encapsulation packet.

In this embodiment, the adaptation layer subheader may include a service identifier, a delay-sensitive service flag, and target application information. The delay-sensitive service flag is used to identify whether the target service is a delay-sensitive service. The target application information may include the port number of the target application and the identifier of the target application, which is used to indicate the target application of the target service data transmission.

In the specific implementation, the adaptation layer at the sending end can determine whether the target service corresponding to the target service data is a delay-sensitive service, and then add different adaptation layer sub-headers to different service data according to the QoS (Quality of Service) requirements of the application layer service data at the sending end, encapsulate the service data, obtain the encapsulated package, and route the encapsulated package to other sub-layers at the sending end.

It can be understood that the service data encapsulated by the transmission end adaptation layer can be sent directly to the transmission end physical layer or to other data link layers. Specifically, the delay-sensitive service is routed to the transmission end physical layer, and the non-delay-sensitive service is routed to the transmission end MAC layer. As shown in Figure 3, the service data of the delay-sensitive service is encapsulated once by the transmission end adaptation layer and the adaptation layer subheader is added, and then directly transmitted through the transmission end physical layer. The service data of the non-delay-sensitive service is encapsulated by the transmission end adaptation layer and the adaptation layer subheader is added, and then encapsulated by the transmission end MAC layer and the MAC subheader is added, and then transmitted through the transmission end physical layer.

Step S200: determining target time-frequency domain parameters corresponding to the target encapsulation packet through the physical layer of the transmitting end, and sending the target encapsulation packet to the receiving end based on the target time-frequency domain resources corresponding to the target time-frequency domain parameters.

In this embodiment, the physical layer of the transmitting end can modulate the target encapsulation packet into a bit stream and send it to the receiving end through the air interface resources. The air interface resources may include corresponding frequency domain resources and time domain resources, and the time-frequency domain parameters may include time domain position information and frequency domain position information. The physical layer of the transmitting end can determine the target time-frequency domain parameters according to the service attributes of the target service, map the bit stream corresponding to the encapsulation packet of the target service data to the target time-frequency domain resources corresponding to the air interface resources, and transmit it to the receiving end. The target time-frequency domain resources include corresponding target frequency domain resources and target time domain resources.

As a specific implementation, before step S200, the method may further include: allocating frequency domain resources and time domain resources to each delay sensitive service according to service attributes corresponding to each delay sensitive service, and obtaining time-frequency domain parameters corresponding to each delay sensitive service.

In this embodiment, for delay-sensitive services, the service data of delay-sensitive services with different service attributes are mapped to different frequency domain resources and time domain resources of the air interface resources through the physical layer of the transmitting end and are sent. For non-delay-sensitive services, a multi-layer encapsulation method is used to encapsulate and send the service data of different non-delay-sensitive services.

Specifically, before data transmission, the service attributes of the delay-sensitive service can be determined in advance by the scheduler based on the service attribute information of the delay-sensitive service, and specific frequency domain resources and time domain resources can be allocated to each delay-sensitive service. Each delay-sensitive service is bound to the corresponding time-frequency domain resources to obtain the time-frequency domain parameters corresponding to the service data of each delay-sensitive service, wherein the time-frequency domain parameters include time domain position information and frequency domain position information. During data transmission, the physical layer of the transmitting end can determine the corresponding target time-frequency domain parameters based on the service attribute information in the target service data, obtain the target time domain position information and the target frequency domain position information, and map the bit stream corresponding to the target service data to the corresponding target time-frequency domain resources for transmission. Therefore, for the service data of the delay-sensitive service, the statically reserved time-frequency domain resources are used, and fixed frequency domain resources are allocated to it in the frequency domain, and it is periodically repeated in the time domain for encapsulation and transmission.

As a specific implementation, step S200 may include: adding error packet detection information to the target encapsulation packet through the physical layer of the sending end to obtain the encapsulation packet to be transmitted; determining the target time-frequency domain parameters corresponding to the encapsulation packet to be transmitted through the physical layer of the sending end, and sending the encapsulation packet to be transmitted to the receiving end based on the target time-frequency domain resources corresponding to the target time-frequency domain parameters.

In this embodiment, the error packet detection information may be one-byte Ack information or Nack information, which may be added to the header or tail of the target encapsulation packet, and may indicate whether the receiving end correctly receives the target service data transmitted by the sending end. After the sending end physical layer receives the Ack or Nack feedback, it delivers the feedback result to the sending end MAC layer, and the sending end MAC layer may perform a link adaptation process based on the feedback result, such as modifying the time-frequency domain resources of the delay-sensitive service, and the transmission resource modification includes adjusting the frequency domain resources and adjusting the transmission power.

As shown in Figure 4, the information field of the error packet detection information may include: 1 bit reserved; 1 bit, with a value of 0 or 1, used to indicate whether the encapsulated packet carries Ack information or Nack information; 2 bits, with a value of 1, 2, 3 or 4, used to indicate the number of Ack information or Nack information carried by the encapsulated packet; 4 bits, used to indicate the Ack value of the Ack information or the Nack value of the Nack information carried by the encapsulated packet. As shown in Figure 5, in an exemplary Ack or Nack field diagram, 1 bit is "1" indicating the existence of an Ack field or a Nack field; 2 bits are "10" indicating the existence of 2 Acks or 2 Nacks, and 4 bits are "1100" indicating that the first error packet detection information and the second error packet detection information are Ack information.

Step S300: receiving a target encapsulation packet through a receiving end physical layer based on target time-frequency domain resources, and sending the target encapsulation packet to a receiving end adaptation layer based on target time-frequency domain parameters corresponding to the target time-frequency domain resources.

Step S400: The target encapsulation packet is parsed through the receiving end adaptation layer to obtain target service data.

In this embodiment, the target encapsulation packet is obtained by the sending end through the method of the above steps S100 to S200.

The receiving end may include a receiving end physical layer, a receiving end adaptation layer and a receiving end application layer. The receiving end physical layer is connected to the transmitting end physical layer, receives the target encapsulation packet sent by the transmitting end physical layer, and based on the target time-frequency domain parameters corresponding to the target time-frequency domain resources, determines that the target encapsulation packet is sent through the target time-frequency domain resources, and then directly sends the target encapsulation packet to the receiving end adaptation layer. The receiving end adaptation layer can parse the target encapsulation packet to obtain the target service data and service attribute information corresponding to the target encapsulation packet, and parse the header information of the adaptation layer subheader to obtain the target application information corresponding to the target service, and send the target service data to the receiving end application layer. The receiving end application layer can send the target service data to the target application based on the target application information, thereby realizing the target service requirements.

As a specific implementation, step S300 may include: receiving a target encapsulation packet through the physical layer of the receiving end based on the target time-frequency domain resources; if the target service corresponding to the target encapsulation packet is judged to be a delay-sensitive service according to the target time-frequency domain parameters corresponding to the target time-frequency domain resources, the target encapsulation packet is sent to the adaptation layer of the receiving end.

In this embodiment, since the sending end provides different data encapsulation and transmission methods for the service data of delay-sensitive services and the service data of non-delay-sensitive services, the receiving end can also provide different data parsing methods for the service data of delay-sensitive services and the service data of non-delay-sensitive services.

Specifically, as shown in FIG6 , for delay-sensitive services, the receiving end physical layer can determine that the corresponding target service is a delay-sensitive service by receiving the target time-frequency domain parameters corresponding to the target time-frequency domain resources of the target encapsulation packet, and directly send the target encapsulation packet to the receiving end adaptation layer for analysis. For non-delay-sensitive services, the receiving end physical layer can determine that the corresponding target service is a non-delay-sensitive service based on the target time-frequency domain parameters corresponding to the received target encapsulation packet without the target time-frequency domain resources, and send the target encapsulation packet to the receiving end MAC layer and the receiving end adaptation layer in turn for analysis.

As a specific implementation method, before step S300, the method may also include: receiving, through the physical layer of the receiving end, time-frequency domain parameters corresponding to each delay-sensitive service sent by the transmitting end, where the time-frequency domain parameters are obtained by allocating frequency domain resources and time domain resources to each delay-sensitive service by the transmitting end according to the service attributes corresponding to each delay-sensitive service.

In this embodiment, before data transmission, the transmitting end and the receiving end can exchange the binding relationship between the delay-sensitive service and the time-frequency domain resources through signaling. Therefore, the receiving end physical layer can determine that the target service corresponding to the target encapsulation packet is a delay-sensitive service based on the target time-frequency domain parameters corresponding to the target time-frequency domain resources of the received target encapsulation packet and the binding relationship between the time-frequency domain resources and the delay-sensitive service, obtain the service attributes of the target service, and directly send the target encapsulation packet to the receiving end adaptation layer.

On the first aspect, this embodiment provides a data transmission method, which encapsulates the service data only through a layer of transmission end adaptation layer, transmits the data based on the time-frequency domain resources corresponding to the encapsulation packet, and parses the service data at the receiving end only through a layer of reception end adaptation layer. The service data only interacts between the adaptation layer and the physical layer at both the transmitting end and the receiving end, and does not pass through the MAC layer. Compared with multi-layer encapsulation processing of the service data, by reducing the protocol layers experienced by the service data at the transmitting end and the receiving end, the data interaction delay between layers, the data encapsulation delay within the layer, and the data parsing delay are reduced, thereby reducing the data transmission delay, so that wireless communication technology can be widely used in scenarios with extremely high delay requirements. In addition, in this embodiment, for delay-sensitive services with high real-time requirements and non-delay-sensitive services without real-time requirements, they are encapsulated and transmitted respectively through different encapsulation methods, and the air interface resources are reasonably allocated according to the service attributes, thereby improving the utilization rate of the air interface resources.

Secondly, in this embodiment, the delay-sensitive service is associated with specific frequency domain resources and time domain resources according to the service attributes. The receiving end can use the frequency domain position and time domain position of the received data to identify the service attributes, so that the service data corresponding to the delay-sensitive service can be directly parsed through a receiving end adaptation layer.

In addition, the embodiment of the present application also proposes a computer storage medium, on which a computer program is stored, and when the computer program is executed by the processor, the steps of the data transmission method as described above are implemented. Therefore, it will not be repeated here. In addition, the description of the beneficial effects of adopting the same method will not be repeated. For technical details not disclosed in the computer-readable storage medium embodiment involved in the present application, please refer to the description of the method embodiment of the present application. Determined as an example, the program instructions can be deployed to be executed on one computing device, or on multiple computing devices located at one location, or, on multiple computing devices distributed at multiple locations and interconnected by a communication network.

The above are only optional embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims (10)

A data transmission method, wherein the method is applied to a sending end, and the method comprises: Encapsulating the target service data through the transmission end adaptation layer to obtain a target encapsulation packet, and sending the target encapsulation packet to the transmission end physical layer; The target time-frequency domain parameters corresponding to the target encapsulation packet are determined through the physical layer of the transmitting end, and the target encapsulation packet is sent to the receiving end based on the target time-frequency domain resources corresponding to the target time-frequency domain parameters. The method according to claim 1, wherein the step of encapsulating the target service data through the transmitting end adaptation layer to obtain a target encapsulation packet and sending the target encapsulation packet to the transmitting end physical layer comprises: Determining, by the transmission end adaptation layer, whether the target service corresponding to the target service data is a delay-sensitive service, encapsulating the target service data to obtain the target encapsulation packet; If the target service is the delay-sensitive service, the target encapsulation packet is sent to the physical layer of the sending end. The method of claim 2, wherein before the step of determining the target time-frequency domain parameters corresponding to the target encapsulation packet through the physical layer of the transmitting end, and sending the target encapsulation packet to the receiving end based on the target time-frequency domain resources corresponding to the target time-frequency domain parameters, the method further comprises: According to the service attributes corresponding to each of the delay-sensitive services, frequency domain resources and time domain resources are allocated to each of the delay-sensitive services, and time-frequency domain parameters corresponding to each of the delay-sensitive services are obtained. The method according to claim 1, wherein the step of encapsulating the target service data through the transmitting end adaptation layer to obtain the target encapsulation packet comprises: An adaptation layer subheader is added to the target service data through the sending end adaptation layer to obtain the target encapsulation packet. The method according to claim 1, wherein the step of determining the target time-frequency domain parameters corresponding to the target encapsulation packet through the physical layer of the transmitting end, and sending the target encapsulation packet to the receiving end based on the target time-frequency domain resources corresponding to the target time-frequency domain parameters comprises: By means of the physical layer of the transmitting end, error packet detection information is added to the target encapsulation packet to obtain an encapsulation packet to be transmitted; The target time-frequency domain parameters corresponding to the encapsulated packet to be transmitted are determined through the physical layer of the transmitting end, and the encapsulated packet to be transmitted is sent to the receiving end based on the target time-frequency domain resources corresponding to the target time-frequency domain parameters. A data transmission method, wherein the method is applied to a receiving end, and the method comprises: The target encapsulation packet is received through the receiving end physical layer based on the target time-frequency domain resources, and the target encapsulation packet is sent to the receiving end adaptation layer based on the target time-frequency domain parameters corresponding to the target time-frequency domain resources; the target encapsulation packet is sent to the sending end physical layer after the sending end encapsulates the target service data through the sending end adaptation layer, and is sent through the sending end physical layer based on the target time-frequency domain parameters corresponding to the target encapsulation packet; The target encapsulation packet is parsed through the receiving end adaptation layer to obtain the target service data. The method of claim 6, wherein the step of receiving the target encapsulation packet through the receiving end physical layer based on the target time-frequency domain resources, and sending the target encapsulation packet to the receiving end adaptation layer based on the target time-frequency domain parameters corresponding to the target time-frequency domain resources comprises: Receiving the target encapsulation packet based on the target time-frequency domain resources through the receiving end physical layer; If it is determined that the target service corresponding to the target encapsulation packet is a delay-sensitive service according to the target time-frequency domain parameters corresponding to the target time-frequency domain resources, the target encapsulation packet is sent to the receiving-end adaptation layer. The method according to claim 7, wherein before the step of receiving the target encapsulated packet through the receiving end physical layer based on the target time-frequency domain resources, the method further comprises: The time-frequency domain parameters corresponding to each of the delay-sensitive services sent by the transmitting end are received through the physical layer of the receiving end, and the time-frequency domain parameters are obtained by the transmitting end by allocating frequency domain resources and time domain resources to each of the delay-sensitive services according to the service attributes corresponding to each of the delay-sensitive services. A data transmission device, wherein the device comprises: a memory, a processor, and a data transmission program stored in the memory and executable on the processor, and is configured through the data transmission program to implement the steps of the data transmission method as described in any one of claims 1 to 5 or 6 to 8. A computer-readable storage medium, wherein a computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of the data transmission method according to any one of claims 1 to 5 or 6 to 8 are implemented.