WO2023138446A1

WO2023138446A1 - Data transmission method and network device

Info

Publication number: WO2023138446A1
Application number: PCT/CN2023/071663
Authority: WO
Inventors: 孙军帅; 王莹莹; 孙欣; 刘光毅
Original assignee: 中国移动通信有限公司研究院; 中国移动通信集团有限公司
Priority date: 2022-01-18
Filing date: 2023-01-10
Publication date: 2023-07-27
Also published as: CN116506893A

Abstract

The present invention relates to the technical field of communications, and provides a data transmission method and a network device. The method comprises: a media access control (MAC) entity of a receiving end device receives an MAC protocol data unit (MAC PDU), wherein the MAC PDU comprises a service data unit (SDU), a radio bearer (RB) identifier and a protocol function body identifier; and when the RB identifier is an identifier of an AI RB, the receiving end device sends the SDU or data information comprised in the SDU to a protocol function body corresponding to the protocol function body identifier, wherein the AI RB is associated with a plurality of protocol function bodies in the receiving end device.

Description

A data transmission method and network equipment

Cross References to Related Applications

This application claims priority to Chinese Patent Application No. 202210053754.8 filed in China on January 18, 2022, the entire contents of which are hereby incorporated by reference.

technical field

The present disclosure relates to the field of communication technologies, and in particular to a data transmission method and network equipment.

Background technique

In related technologies, in the fifth-generation mobile communication technology (5th-Generation, 5G) system, it is proposed to introduce a user plane (User Plane, UP) function at Layer 3 (Layer 3, L3) of the access layer (Access Stratum, AS), so that the terminal device can realize seamless and lossless forwarding of data when moving. In related technologies, a radio bearer (Radio Bearer, RB) is used to carry a protocol control unit (Protocol Data Unit, PDU) for transmission between a network device and a terminal device. At present, each bearer is associated with only one protocol functional entity, so to transmit data corresponding to multiple protocol functional entities, multiple radio bearers need to be established respectively, resulting in a large data transmission delay.

Contents of the invention

Embodiments of the present disclosure provide a data transmission method and a network device, so as to solve the problem of relatively large data transmission delay in the bearer solution of the related art.

In order to solve the above-mentioned problems, the present disclosure is implemented as follows:

In a first aspect, an embodiment of the present disclosure provides a data transmission method for a receiving device, including:

The media access control entity (Media Access Control, MAC) of the receiving end device receives a protocol data unit MAC PDU of media access control, wherein the MAC PDU includes a service data unit (Service Data Unit, SDU), a radio bearer RB identifier and a protocol function identifier;

In the case where the RB identifier is an AI RB identifier, the receiving end device sends the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier, and the AI RB is associated with multiple protocol functions in the receiving end device.

In the second aspect, the embodiment of the present disclosure also provides a data transmission method for a sending device, including:

The sending end device generates a media access control MAC entity to receive a media access control protocol data unit MAC PDU, wherein the MAC PDU includes a service data unit SDU, a radio bearer RB identifier, and a protocol function identifier;

In the case where the RB identifier is the identifier of an AI RB, the sending end device sends the MAC PDU to the receiving end device, and the AI RB is associated with multiple protocol functions in the receiving end device.

In a third aspect, an embodiment of the present disclosure further provides a receiver device, including:

The receiving module is used for the media access control MAC entity of the receiving end device to receive the protocol data unit MAC PDU of media access control, wherein the MAC PDU includes a service data unit SDU, a radio bearer RB identifier and a protocol function identifier;

The first sending module is configured to send the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier when the RB identifier is an AI RB identifier, and the AI RB is associated with multiple protocol functions in the receiver device.

In a fourth aspect, the embodiment of the present disclosure further provides a sending end device, including:

The processing module is used for the sending end device to generate a media access control MAC entity to receive a media access control protocol data unit MAC PDU, wherein the MAC PDU includes a service data unit SDU, a radio bearer RB identifier, and a protocol function identifier;

The second sending module is configured to send the MAC PDU to the receiving device when the RB identifier is an AI RB, and the AI RB is associated with multiple protocol functions in the receiving device.

In the fifth aspect, the embodiment of the present disclosure further provides a receiver device, including a transceiver and a processor,

The transceiver is used for the media access control MAC entity of the receiving end device to receive a media access control protocol data unit MAC PDU, wherein the MAC PDU includes a service data unit SDU, a radio bearer RB identifier, and a protocol function identifier;

The transceiver is further configured to send the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier when the RB identifier is an AI RB identifier, and the AI RB is associated with multiple protocol functions in the receiver device.

In a sixth aspect, the embodiment of the present disclosure further provides a sending end device, including a transceiver and a processor,

The processor is used for the sending end device to generate a media access control MAC entity to receive a media access control protocol data unit MAC PDU, wherein the MAC PDU includes a service data unit SDU, a radio bearer RB identifier, and a protocol function identifier;

The transceiver is configured to send the MAC PDU to the receiving device when the RB identifier is an AI RB, and the AI RB is associated with multiple protocol functions in the receiving device.

In the seventh aspect, the embodiment of the present disclosure further provides a receiver device, including: a processor, a memory, and a program stored on the memory and operable on the processor. When the program is executed by the processor, the steps of the data transmission method described in the first aspect above are realized.

In an eighth aspect, an embodiment of the present disclosure further provides a sending device, including: a processor, a memory, and a program stored on the memory and operable on the processor. When the program is executed by the processor, the steps of the data transmission method described in the second aspect above are implemented.

In a ninth aspect, an embodiment of the present disclosure further provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the data transmission method described in the above-mentioned first aspect are implemented; or when the computer program is executed by a processor, the steps of the data transmission method described in the above-mentioned second aspect are implemented.

In the data transmission method of the embodiment of the present disclosure, the AI RB is associated with multiple protocol functions, and the receiving end device sends the SDU or the data information included in the SDU to the target protocol function through the AI RB through the protocol function identifier, which reduces the time spent on establishing different bearers during the data transmission process, thereby reducing the delay of data transmission.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present disclosure. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without paying creative labor.

FIG. 1 is a flowchart of a data transmission method provided by an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of the format of a MAC PDU provided by an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of the format of another MAC PDU provided by an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of the format of another MAC PDU provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a data transmission method provided by an embodiment of the present disclosure;

FIG. 6 is a flowchart of another data transmission method provided by an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a receiver device provided by an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a sending end device provided by an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of another receiver device provided by an embodiment of the present disclosure;

Fig. 10 is a schematic structural diagram of another sender device provided by an embodiment of the present disclosure.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are part of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

Please refer to FIG. 1. FIG. 1 is a flowchart of a data transmission method provided by an embodiment of the present disclosure, which is used for a receiving end device. As shown in FIG. 1, the data transmission method includes the following steps:

Step 101, the media access control MAC entity of the receiving end device receives the protocol data unit MAC PDU of media access control, wherein the MAC PDU includes a service data unit SDU, a radio bearer RB identifier and a protocol function entity identifier (Protocol Function Entity ID).

The MAC PDU received by the MAC at the receiving end can be obtained from the terminal or from the network side device. After the receiving end obtains the MAC PDU, it parses the MAC PDU, and obtains the RB identifier, the protocol function identifier and the SDU from the subheader of the MAC.

The RB identifier may be the RB number or the RB serial number; the protocol function identifier may be the protocol function number or the protocol function serial number. The RB identifier and the protocol function identifier are uniformly configured by the Radio Resource Control (RRC) on the network side through RRC signaling. After RRC signaling configuration, the RB identifier and protocol function identifier of the receiving end device and the sending end device are consistent, so that the receiving end device and the sending end device can transmit the SDU or the data information included in the SDU through the RB.

Step 102: When the RB identifier is the identifier of the AI RB, the receiving device sends the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier, and the AI RB is associated with multiple protocol functions in the receiving device.

AI RB is a public logical bearer in User Equipment (UE), which can be associated with multiple protocol functional entities in the receiving end device. The receiving end device sends SDU or the data information included in the SDU to the outside or to other protocol functional entities through AI RB.

The receiver device parses the MAC PDU after receiving it, and obtains the SDU, radio bearer RB identifier and protocol function identifier included in the MAC PDU. If the SDU is the SDU of the MAC entity of the receiving end device, the subsequent parsing process will be performed by the MAC entity; if the SDU is not the SDU of the receiving end device MAC but the data information of the protocol function body, the receiving end device will send the SDU or the data information included in the SDU to the protocol function body through the AI RB.

In the process of data transmission, AI RB does not record or transmit the processing information of the receiving end, that is, no inter-layer mapping is required.

In the data transmission method of this embodiment, the MAC entity of the receiving end device receives the MAC PDU, uses the SDU included in the MAC PDU, the radio bearer RB identifier, and the protocol function identifier, and when the RB identifier is the identifier of the AI RB, the receiving end device sends the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier, and uses the characteristic that the AI RB is associated with multiple protocol functions to reduce the time required to establish multiple bearers during the data transmission process, thereby reducing the data transmission delay.

In one embodiment, the MAC PDU also includes routing information between the MAC entity and the protocol function; sending the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier, including:

Send the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier according to the routing information.

When the AI RB sends the SDU or the data information included in the SDU to the protocol function body identified by the protocol function body, in order to ensure the accuracy of the transmission, the SDU or the data information included in the SDU is effectively transmitted to the corresponding protocol function body, so that the routing information between the MAC entity and the protocol function body needs to be included in the MAC PDU.

That is, in this embodiment, when the receiving end device sends the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier, it needs to confirm the transmission path according to the routing information between the MAC entity included in the MAC PDU and the protocol function, in order to effectively transmit the SDU or the data information included in the SDU to the protocol function.

In one embodiment, the AI RB identifier is carried in the subheader of the MAC PDU.

The MAC PDU includes multiple sub-PDUs, and each sub-PDU includes at least a MAC sub-header. The sub-header of the MAC PDU is set to carry the AI RB identifier, so that the receiving end device parses the sub-header of the MAC PDU to obtain the AI RB identifier, so that the corresponding AI RB transmits the SDU or the data information included in the SDU.

In this embodiment, the ID of the AI RB in the UE is unique, so that the receiving device can quickly confirm the AI RB in the UE through the AI RB ID carried in the subheader of the MAC PDU, and then transmit the SDU or the data information included in the SDU through the AI RB.

In one embodiment, the subheader of the MAC PDU includes a logical channel identity (Logical Channel Identity, LCID), and the LCID includes an AI RB identity.

In order to realize that MAC PDU includes AI RB identification and protocol function body identification, and directly expand based on the existing MAC PDU format, the existing MAC PDU format structure is not changed. The MAC PDU format extension is shown in Figure 2, Figure 3, and Figure 4. The existing format is shown in the figure above, and the extended format is shown in the figure below. In the figure, L indicates the length of the corresponding MAC PDU in bytes, F indicates the length of the L field, E indicates whether there are more fields in the MAC header, and R is a reserved bit, which is set to "0".

Set AI RB identification AI RB ID to a new type ID of LCID, that is, AI RB and other types of RBs or logical channels (Logical Channel) are uniformly numbered, for example, LCID=0...n, at this time set the value of AI RB ID to a value in the range of 0...n. At the same time, the protocol function identifier is set in the L field, so that the MAC PDU carries the protocol function identifier.

In this embodiment, by extending the MAC PDU, the LCID of the MAC PDU can include the AI RB ID and the protocol function body identifier, and the receiving end device can transmit the SDU or the data information included in the SDU to the protocol function body corresponding to the protocol function body identifier through the AI RB ID.

In one embodiment, the protocol function identifier includes the following items:

The identification of the protocol function body in the receiver device;

The identification of the group where the protocol function is located in the receiving end device, and the identification of the protocol function in the group.

The protocol function identifier is used to identify the protocol function in the UE, and the receiving end device can confirm the protocol function through the protocol function identifier. Since the AI RB is associated with multiple protocol functions, and different protocol functions are all set in the same UE, it is necessary to differentiate the protocol function identifiers from different protocol functions.

In this embodiment, the protocol function identifier may be the identifier of the protocol function in the receiving end device, or the protocol function identifier may be the identifier of the group in which the protocol function is located in the receiving end device and the identifier of the protocol function in the group, so that the protocol function identifier can be in one-to-one correspondence with the protocol function in the UE.

In an embodiment, the SDU or the data information included in the SDU includes: AI information.

AI information is a basic function of the network, which can realize time interaction between the network side and the terminal side, including configuring AI models, interacting or synchronizing AI algorithms between the network side and the terminal side, information interaction between different parts of the distributed AI model or algorithms, AI-related measurements reported by the UE, AI capabilities for interaction between the UE side and the network side, etc.

In this embodiment, the SDU or the data information included in the SDU is set to include AI information, so that the AI information can be quickly transmitted between the network side and the terminal side through the AI RB, and the interaction between the UE side and the network side is realized.

In one embodiment, the protocol function body includes at least one of the following:

Radio Resource Control RRC entity, Service Data Adaptation Protocol SDAP entity, Packet Data Convergence Protocol PDCP entity, Radio Link Control RLC entity.

As shown in Figure 5, the AI RB is associated with multiple protocol functions in the UE. In order to enable the AI RB to transmit more SDUs or data information included in the SDU, the AI RB is associated with different protocol functions in the UE as much as possible. The protocol functions in the UE are mainly radio resource control RRC entities, service data adaptation protocol SDAP entities, packet data convergence protocol PDCP entities, and radio link control RLC entities. The AI RB is associated with the above protocol functions, so that the SDU or the data information included in the SDU can be effectively transmitted to different protocol functions through the AI RB.

In this embodiment, the protocol function radio resource control RRC entity, the service data adaptation protocol SDAP entity, the packet data convergence protocol PDCP entity, and the radio link control RLC entity enable the AI RB to transmit the SDU or the data information included in the SDU between the receiving end and different protocol functions, reduce data occupation of other bearers as much as possible, and effectively reduce the delay of data transmission.

Please refer to FIG. 6. FIG. 6 is a flowchart of another data transmission method provided by an embodiment of the present disclosure, which is executed by the sending end device. As shown in FIG. 6, the data transmission method includes the following steps:

Step 201: The sending end device generates a MAC entity for media access control and receives a MAC PDU for media access control, wherein the MAC PDU includes the SDU or the data information included in the SDU, the radio bearer RB identifier and the protocol function identifier.

The sending end device may be a terminal device, or a server device or a base station device. When the sending end device produces a MAC PDU, the MAC PDU includes the SDU or the data information included in the SDU, the radio bearer RB identifier, and the protocol function identifier, where the RB identifier corresponds to the bearer that transmits the MAC PDU, and the protocol function identifier is the protocol function that receives the SDU or the data information included in the SDU and performs parsing and processing.

Step 202, when the RB identifier is the identifier of the AI RB, the sending device sends a MAC PDU to the receiving device, and the AI RB is associated with multiple protocol functions in the receiving device.

In this embodiment, the sending end device carries the SDU or the data information included in the SDU, the RB identifier and the protocol function identifier when generating the MAC PDU, so that the receiving end device can send the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier according to the AI RB corresponding to the RB identifier after receiving the MAC PDU, so that the AI RB can effectively transmit the SDU or the data information included in the SDU between multiple associated protocol functions, reducing the transmission delay.

In one embodiment, the MAC PDU also includes routing information between the MAC entity and the protocol function.

In one embodiment, the subheader of the MAC PDU includes a logical channel identifier LCID, and the LCID includes an AI RB ID.

The identification of the protocol function body in the receiver device;

Please refer to FIG. 7. FIG. 7 is a schematic structural diagram of a receiving end device provided by an embodiment of the present disclosure. As shown in FIG. 7, the receiving end device 700 includes:

The receiving module 701 is used for the media access control MAC entity of the receiving end device to receive the protocol data unit MAC PDU of the media access control, wherein the MAC PDU includes the SDU or the data information included in the SDU, the radio bearer RB identifier and the protocol function identifier;

The first sending module 702 is used to send the SDU or the data packet included in the SDU to the protocol function corresponding to the protocol function identifier when the RB identifier is the identifier of the AI RB, and the AI RB is associated with multiple protocol functions in the receiver device.

The identification of the protocol function body in the receiver device;

The receiving end device is capable of implementing each process of each embodiment of the above-mentioned data transmission method applied to the receiving end device, and the technical features correspond to each other, and can achieve the same technical effect. To avoid repetition, details are not repeated here.

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of a sending end device provided by an embodiment of the present disclosure. As shown in FIG. 8, the sending end device 800 includes:

The processing module 801 is used for the sending end device to generate a media access control MAC entity to receive a media access control protocol data unit MAC PDU, wherein the MAC PDU includes SDU or data information included in the SDU, a radio bearer RB identifier and a protocol function identifier;

The second sending module 802 is configured to send the MAC PDU to the receiving device when the RB identifier is an AI RB, and the AI RB is associated with multiple protocol functions in the receiving device.

The identification of the protocol function body in the receiver device;

The sending end device is capable of implementing each process of each embodiment of the above-mentioned data transmission method applied to the sending end device, and the technical features correspond to each other, and can achieve the same technical effect. To avoid repetition, details are not repeated here.

An embodiment of the present disclosure also provides a receiver device, including: a processor, a memory, and a program stored on the memory and operable on the processor. When the program is executed by the processor, each process of the above data transmission method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

Specifically, referring to FIG. 9 , the embodiment of the present disclosure also provides a schematic structural diagram of another receiver device, including a bus 901 , a transceiver 902 , an antenna 903 , a bus interface 904 , a processor 905 and a memory 906 .

Wherein, the transceiver 902 is used for the media access control MAC entity of the receiving end device to receive the protocol data unit MAC PDU of the media access control, wherein the MAC PDU includes the SDU or the data information included in the SDU, the radio bearer RB identifier and the protocol function identifier;

The transceiver 902 is also used to send the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier when the RB identifier is the AI RB identifier, and the AI RB is associated with multiple protocol functions in the receiver device.

The identification of the protocol function body in the receiver device;

In FIG. 9, the bus architecture (represented by bus 901), which may include any number of interconnected buses and bridges, links together various circuits including one or more processors represented by processor 905 and memory represented by memory 906. The bus 901 may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described herein. The bus interface 904 provides an interface between the bus 901 and the transceiver 902 . Transceiver 902 may be a single element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other devices over a transmission medium. The data processed by the processor 905 is transmitted on the wireless medium through the antenna 903 , further, the antenna 903 also receives the data and transmits the data to the processor 905 .

The processor 905 is responsible for managing the bus 901 and general processing, and may also provide various functions including timing, peripheral interface, voltage regulation, power management, and other control functions. Instead, the memory 606 may be used to store data used by the processor 905 when performing operations.

Optionally, the processor 905 may be a CPU, ASIC, FPGA or CPLD.

Embodiments of the present disclosure also provide a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, each process of the above-mentioned data transmission method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here. Wherein, a computer-readable storage medium, such as a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the present disclosure also provides a sender device, including: a processor, a memory, and a program stored on the memory and operable on the processor. When the program is executed by the processor, each process of the above data transmission method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

Specifically, referring to FIG. 10 , the embodiment of the present disclosure also provides a schematic structural diagram of another sender device, including a bus 1001 , a transceiver 1002 , an antenna 1003 , a bus interface 1004 , a processor 1005 and a memory 1006 .

Wherein, the processor 1005 is used for the sending end device to generate a media access control MAC entity to receive a media access control protocol data unit MAC PDU, wherein the MAC PDU includes the SDU or the data information included in the SDU, the radio bearer RB identifier and the protocol function identifier;

The transceiver 1002 is configured to send the MAC PDU to the receiver device when the RB identifier is the identifier of the AI RB, and the AI RB is associated with multiple protocol functions in the receiver device.

The identification of the protocol function body in the receiver device;

In FIG. 10, the bus architecture (represented by bus 1001), which may include any number of interconnected buses and bridges, links together various circuits including one or more processors represented by processor 1005 and memory represented by memory 1006. The bus 1001 may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described herein. The bus interface 1004 provides an interface between the bus 1001 and the transceiver 1002 . Transceiver 1002 may be a single element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other devices over a transmission medium. The data processed by the processor 1005 is transmitted on the wireless medium through the antenna 1003 , further, the antenna 1003 also receives the data and transmits the data to the processor 1005 .

The processor 1005 is responsible for managing the bus 1001 and general processing, and may also provide various functions including timing, peripheral interface, voltage regulation, power management, and other control functions. And the memory 1006 may be used to store data used by the processor 1005 when performing operations.

Optionally, the processor 1005 may be a CPU, ASIC, FPGA or CPLD.

Embodiments of the present disclosure also provide a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, each process of the above-mentioned data transmission method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here. Wherein, the computer-readable storage medium, such as ROM, RAM, magnetic disk or optical disk, and the like.

It should be noted that, in this document, the term "comprising", "comprising" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent in such a process, method, article or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present disclosure can be embodied in the form of a software product in essence or the part that contributes to the prior art. The computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), and includes several instructions to make a terminal (which can be a mobile phone, computer, server, air conditioner, or network equipment, etc.) execute the method of each embodiment of the present disclosure.

It should be understood that the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, modules, units, sub-modules, sub-units, etc. can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing device (DSP Device, DSPD), programmable logic device (Programmable Logic Device, PLD), field-programmable gate array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in this disclosure, or combinations thereof.

The embodiments of the present disclosure have been described above in conjunction with the accompanying drawings, but the present disclosure is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Under the inspiration of this disclosure, those skilled in the art can also make many forms without departing from the purpose of the present disclosure and the scope of protection of the claims, all of which belong to the protection of the present disclosure.

Claims

A data transmission method for a receiver device, comprising:

The medium access control MAC entity of the receiving end device receives a medium access control protocol data unit MAC PDU, wherein the MAC PDU includes a service data unit SDU, a radio bearer RB identifier, and a protocol function identifier;

In the case where the RB identifier is an AI RB identifier, the receiving end device sends the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier, and the AI RB is associated with multiple protocol functions in the receiving end device.
The method according to claim 1, wherein the MAC PDU further includes routing information between the MAC entity and the protocol function; sending the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier includes:

Sending the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier according to the routing information.
The method according to claim 1, wherein the AI RB identifier is carried in the subheader of the MAC PDU.
The method according to claim 3, wherein the subheader of the MAC PDU includes the logical channel identifier LCID, and the LCID includes the AI RB identifier.
The method according to any one of claims 1 to 4, wherein the protocol function identifier includes one of the following:

The identification of the protocol function body in the receiving end device;

The identifier of the group in which the protocol function is located in the receiving end device, and the identifier of the protocol function in the group.
The method according to any one of claims 1 to 4, wherein the SDU or the data information included in the SDU includes: AI information.
The method according to any one of claims 1 to 4, wherein the protocol functions include at least one of the following:

Radio Resource Control RRC entity, Service Data Adaptation Protocol SDAP entity, Packet Data Convergence Protocol PDCP entity, Radio Link Control RLC entity.
A radio bearer transmission method, used for a sending end device, comprising:

The sending end device generates a media access control MAC entity to receive a media access control protocol data unit MAC PDU, wherein the MAC PDU includes a service data unit SDU, a radio bearer RB identifier, and a protocol function identifier;

In the case where the RB identifier is the identifier of an AI RB, the sending end device sends the MAC PDU to the receiving end device, and the AI RB is associated with multiple protocol functions in the receiving end device.
The method according to claim 8, wherein the MAC PDU further includes routing information between the MAC entity and the protocol function.
The method according to claim 8, wherein the AI RB identifier is carried in the subheader of the MAC PDU.
The method according to claim 10, wherein the subheader of the MAC PDU includes the logical channel identifier LCID, and the LCID includes the AI RB identifier.
The method according to any one of claims 8 to 11, wherein the protocol function identifier includes one of the following:

The identification of the protocol function body in the receiving end device;

The identifier of the group in which the protocol function is located in the receiving end device, and the identifier of the protocol function in the group.
The method according to any one of claims 8 to 11, wherein the SDU or the data information included in the SDU includes: AI information.
The method according to any one of claims 8 to 11, wherein the protocol functions include at least one of the following:

Radio Resource Control RRC entity, Service Data Adaptation Protocol SDAP entity, Packet Data Convergence Protocol PDCP entity, Radio Link Control RLC entity.
A receiver device, comprising:

The receiving module is used for the media access control MAC entity of the receiving end device to receive the protocol data unit MAC PDU of media access control, wherein the MAC PDU includes a service data unit SDU, a radio bearer RB identifier and a protocol function identifier;

The first sending module is used to send the SDU or the data information included in the SDU to the protocol function body corresponding to the protocol function body identifier by the receiving end device when the RB identifier is an AI RB identifier, and the AI RB is associated with multiple protocol functions in the receiving end device.
A sender device, comprising:

The processing module is used for the sending end device to generate a media access control MAC entity to receive a media access control protocol data unit MAC PDU, wherein the MAC PDU includes a service data unit SDU, a radio bearer RB identifier, and a protocol function identifier;

The second sending module is configured to send the MAC PDU to the receiving device when the RB identifier is an AI RB, and the AI RB is associated with multiple protocol functions in the receiving device.
A receiver device, including a transceiver and a processor,

The transceiver is used for the media access control MAC entity of the receiving end device to receive a media access control protocol data unit MAC PDU, wherein the MAC PDU includes a service data unit SDU, a radio bearer RB identifier, and a protocol function identifier;

The transceiver is further configured to send the SDU or the data information included in the SDU to the protocol function corresponding to the protocol function identifier when the RB identifier is an AI RB identifier, and the AI RB is associated with multiple protocol functions in the receiver device.
A sending end device, including a transceiver and a processor,

The processor is used for the sending end device to generate a media access control MAC entity to receive a media access control protocol data unit MAC PDU, wherein the MAC PDU includes a service data unit SDU, a radio bearer RB identifier, and a protocol function identifier;

The transceiver is configured to send the MAC PDU to the receiving device when the RB identifier is an AI RB, and the AI RB is associated with multiple protocol functions in the receiving device.
A receiver device, comprising: a processor, a memory, and a program stored on the memory and operable on the processor, when the program is executed by the processor, the steps of the data transmission method according to any one of claims 1 to 7 are realized.
A sender device, comprising: a processor, a memory, and a program stored on the memory and operable on the processor, when the program is executed by the processor, the steps of the data transmission method according to any one of claims 8 to 14 are realized.
A computer-readable storage medium, wherein a computer program is stored on the computer-readable 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 7 are realized; or when the computer program is executed by a processor, the steps of the data transmission method according to any one of claims 8 to 14 are realized.