CN116347512A

CN116347512A - Data transmission method and device

Info

Publication number: CN116347512A
Application number: CN202111607984.6A
Authority: CN
Inventors: 韩立锋
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2023-06-27
Also published as: WO2023116579A1

Abstract

The invention provides a data transmission method and a device, wherein the method comprises the following steps: receiving first resource indication information, wherein the first resource indication information is used for indicating first resources, and the reliability level of the first resources is a first level; and sending a first data packet on the first resource, wherein the reliability level of the first data packet is a first level. In the invention, the transmitting end transmits the first data packet with the same reliability level as the first resource through the first resource, so that the first data packet can be transmitted according to the reliability requirement required by the first data packet, and the transmission reliability of the data is improved.

Description

Data transmission method and device

Technical Field

The present invention relates to the field of data transmission technologies, and in particular, to a data transmission method and apparatus.

Background

Data transmission in the 5G wireless cellular communication system NR (New Radio), data is processed by a base station and a UE (User Equipment) in the order of protocol layers, where the protocol layers include PDCP (Packet Data Convergence Protocol ), RLC (Radio Link Control, radio link control) layers, MAC (Medium Access Control ) layers, PHY (Physical Layer), and the like. For example, at the transmitting end, the data packet is processed by the PDCP layer and the RLC layer, becomes an RLC PDU (Protocol Data Unit ), is then assembled into a TB (transport Block) in the MAC, and is finally transmitted to the receiving end via the PHY.

In an exemplary technique, a transmitting end sequentially organizes data packets into transport blocks according to the sequence of the data packets received from an upper layer, and transmits the transport blocks through a wireless channel. The transmitting end cannot transmit the data packets out of order, namely, the

data packets

1, 2 and 3 received from the upper layer, and the transmitting end can only assemble the three data packets into the TB according to the sequence of 1, 2 and 3, and cannot assemble out of order, for example, the data packet 2 is assembled first and then the data packet 1 is assembled, which is not allowed.

The data to be transmitted comprises data with high importance and data with low importance, and the data with high importance has higher requirements on the transmission reliability, so that the data with high importance needs to be transmitted in a transmission mode with high reliability; and data with low importance has lower requirements on transmission reliability, namely, the data with low importance needs to be transmitted in a transmission mode with low reliability. The data to be transmitted can only form the transmission blocks according to the sequence, so that the sending end can only sequentially transmit each data packet to the receiving end according to the unified transmission mode, and the data packets with high importance are transmitted according to the transmission mode with low reliability, so that the transmission reliability of the data is lower.

Disclosure of Invention

The invention provides a data transmission method and device, which are used for solving the problem of low data transmission reliability.

In one aspect, the present invention provides a data transmission method, including:

receiving first resource indication information, wherein the first resource indication information is used for indicating first resources, and the reliability level of the first resources is a first level;

and sending a first data packet on the first resource, wherein the reliability level of the first data packet is a first level.

In an embodiment, further comprising:

receiving second resource indication information, wherein the second resource indication information is used for indicating second resources, and the reliability level of the second resources is a second level;

and sending a second data packet on the second resource, wherein the reliability level of the second data packet is a second level.

In an embodiment, before the step of receiving the first resource indication information, the method further includes:

and sending first data quantity indication information, wherein the first data quantity indication information is used for indicating the data quantity of a first data packet to be transmitted, the reliability level of which is a first level, or the first data quantity indication information is used for indicating the total data quantity of data to be transmitted by the sending end.

In an embodiment, before the step of receiving the second resource indication information, the method further includes:

And sending second data quantity indication information, wherein the second data quantity indication information is used for indicating the data quantity of a second data packet to be transmitted with the reliability level being the second level, or the second data quantity indication information is used for indicating the total data quantity of the data to be transmitted by the sending end.

In an embodiment, the first data packet is a data packet of a first service, and further includes:

and receiving service resource indication information, wherein the service resource indication information is used for indicating the reliability grade of the resource of the data packet for transmitting the first service.

In an embodiment, the first service is a video service.

In an embodiment, a first data queue buffers the first data packet, the first data packet buffered by the first data queue being transmitted via a first RLC entity;

and a second data queue buffers the second data packets, and the second data packets buffered by the second data queue are transmitted through a second RLC entity.

In another aspect, the present invention further provides a data transmission method, applied to a receiving end, including:

transmitting first resource indication information, wherein the first resource indication information is used for indicating first resources, and the reliability level of the first resources is a first level;

And receiving the first data packet transmitted on the first resource, wherein the reliability grade of the first data packet is a first grade.

In an embodiment, further comprising:

transmitting second resource indication information, wherein the second resource indication information is used for indicating second resources, and the reliability level of the second resources is a second level;

and receiving a second data packet transmitted on the second resource, wherein the reliability level of the second data packet is a second level.

In an embodiment, before the step of sending the first resource indication information, the method further includes:

and receiving first data quantity indication information, wherein the first data quantity indication information is used for indicating the data quantity of a first data packet to be transmitted, and the reliability level of the first data packet is a first level.

receiving first resource duty ratio information, wherein the first resource duty ratio information is used for indicating the duty ratio of first resources with the reliability level being a first level;

receiving first data quantity indication information, wherein the first data quantity indication information is used for indicating the total data quantity of data to be transmitted by the sending end;

and determining first resource indication information according to the first data quantity indication information and the first resource duty ratio information.

In an embodiment, before the step of sending the second resource indication information, the method further includes:

and receiving second data quantity indication information, wherein the second data quantity indication information is used for indicating the data quantity of a second data packet to be transmitted, and the reliability level of the second data packet is a second level.

receiving second resource duty ratio information, wherein the second resource duty ratio information is used for indicating the duty ratio of second resources with the reliability level being a second level;

receiving second data quantity indication information, wherein the second data quantity indication information is used for indicating the total data quantity of data to be transmitted by the sending end;

and determining second resource indication information according to the second data quantity indication information and the second resource duty ratio information.

and sending service resource indication information, wherein the service resource indication information is used for indicating the reliability grade of the resource of the data packet for transmitting the first service.

In an embodiment, the first service is a video service.

In an embodiment, a third data queue receives the first data packet, the first data packet received by the third data queue being transmitted via a third RLC entity;

And a fourth data queue receives the second data packet, and the second data packet received by the fourth data queue is transmitted by a fourth RLC entity.

In another aspect, the present invention further provides a transmitting end, including:

the first receiving module is used for receiving first resource indication information, wherein the first resource indication information is used for indicating first resources, and the reliability level of the first resources is a first level;

and the first sending module is used for sending a first data packet on the first resource, and the reliability grade of the first data packet is a first grade.

In another aspect, the present invention further provides a receiving end, including:

the second sending module is used for sending first resource indication information, wherein the first resource indication information is used for indicating first resources, and the reliability level of the first resources is a first level;

and the second receiving module is used for receiving the first data packet transmitted on the first resource, and the reliability grade of the first data packet is a first grade.

In another aspect, the present invention further provides a terminal device, including: a memory and a processor;

the memory stores computer-executable instructions;

the processor executes the computer-executable instructions stored by the memory, causing the processor to perform the data transmission method as described above.

In another aspect, the present invention also provides a computer-readable storage medium having stored therein computer-executable instructions, which when executed by a processor, are for implementing a data transmission method as described above.

In another aspect, the invention also provides a computer program product comprising a computer program which, when executed by a processor, implements a data transmission method as described above.

The data transmission method and the data transmission device provided by the invention are used for receiving the resource indication information for indicating the resource, wherein the reliability level of the resource is the first level, and then the data packet with the reliability level also being the first level is sent on the resource. In the invention, the sending end transmits the data packet with the same reliability level as the resource through the resource, so that the data packet can be transmitted according to the reliability requirement required by the data packet, and the transmission reliability of the data is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic diagram of a data transmission method according to the present invention;

Fig. 2 is a flow chart of a first embodiment of the data transmission method of the present invention;

fig. 3 is a schematic diagram of the composition of data to be transmitted according to an embodiment of the present invention;

fig. 4 is a flowchart of a second embodiment of the data transmission method of the present invention;

fig. 5 is a flowchart of a third embodiment of a data transmission method according to the present invention;

fig. 6 is a flowchart of a fourth embodiment of a data transmission method according to the present invention;

FIG. 7 is a diagram illustrating a BSR according to an embodiment of the present invention;

FIG. 8 is another schematic diagram of a BSR according to an embodiment of the present invention;

fig. 9 is a flowchart of a fifth embodiment of a data transmission method according to the present invention;

fig. 10 is a schematic diagram of a brief interaction between a terminal and a base station according to the present invention;

fig. 11 is a schematic diagram of transmitting data by a transmitting end according to an embodiment of the present invention;

fig. 12 is a flowchart of a sixth embodiment of a data transmission method according to the present invention;

fig. 13 is a flowchart of a seventh embodiment of a data transmission method according to the present invention;

fig. 14 is a flowchart of an eighth embodiment of a data transmission method according to the present invention;

fig. 15 is a flowchart of a ninth embodiment of a data transmission method according to the present invention;

fig. 16 is a flowchart of a tenth embodiment of a data transmission method according to the present invention;

FIG. 17 is a schematic diagram of a transmitting end of the present invention;

FIG. 18 is a schematic block diagram of a receiver according to the present invention;

fig. 19 is a schematic structural diagram of a terminal device according to the present invention.

Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

The invention provides a data transmission method. As shown in fig. 1, the terminal and the base station are each provided with a PDCP layer, an RLC layer, a MAC layer, and a PHY layer. In the terminal, the data packet is processed by PDCP and RLC layers to become RLC PDU, the RLC PDU is assembled into Chen Chuanshu blocks of TBs at the MAC layer, and the TBs are transmitted to the base station through the PHY layer. Similarly, in the base station, the data packets are processed by PDCP and RLC layers to become RLC PDUs, which are assembled into Chen Chuanshu TBs at the MAC layer, and the TBs are transmitted to the terminal through the PHY layer.

The following describes the technical scheme of the present invention and how the technical scheme of the present application solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a first embodiment of a data transmission method of the present invention, applied to a transmitting end, the data transmission method includes the following steps:

step S10, receiving first resource indication information, wherein the first resource indication information is used for indicating first resources, and the reliability level of the first resources is a first level.

In this embodiment, the transmitting end is communicatively connected to the receiving end. The receiving end may issue resource indication information to the transmitting end, the resource indication information being defined as first resource indication information. The first resource indication information is used to indicate a first resource, and the first resource has a reliability level including a first level, a second level, and more. The reliability level characterizes the reliability of transmissions using the resource. For example, when the reliability level is the first level, the reliability of transmitting data using the first level resource is high, and the block error rate of the data transmitted through the resource is small, for example, 0.001%.

In step S20, a first data packet is sent on the first resource, where the reliability level of the first data packet is the first level.

The transmitting end is provided with data to be transmitted, the data to be transmitted comprises a plurality of data packets, and each data packet has a corresponding reliability level. The reliability level of the data packet is configured by the transmitting end. Specifically, the data to be transmitted includes data packets with high importance, data packets with low importance, or other data packets with different importance degrees. The transmitting end configures corresponding reliability grade for each data packet according to the importance degree of each data packet. For example, the reliability level of the data packet of the importance document is configured as a first level, and the reliability level of the data of low importance is configured as a second level. It will be appreciated that the higher the degree of importance the higher the transmission reliability required for the data packet. The data to be transmitted is described as video data.

Referring to fig. 3, three video frames (data to be transmitted) in fig. 3, each video frame contains three data packets, wherein the data packet No. 1 of the video frame a is important, and the data packets No. 2 and 3 are of low relative importance; the data packet No. 2 of the video frame B is important, and the data packets No. 1 and No. 3 are low in relative importance; the data packet No. 3 of the video frame C is important, and the data packets No. 1 and 2 are of low relative importance. The reliability level of the data packet 1 of the video frame A is configured as a first level by the transmitting end, and the reliability level of the

data packets

2 and 3 is configured as a second level. Similarly, the transmitting end configures the reliability level of the number 2 data packet of the video frame B as a first level, and configures the reliability level of the

number

1 and 3 data packets of the video frame B as a second level; the transmitting end configures the reliability level of the No. 3 data packet of the video frame C as a first level, and configures the reliability level of the No. 1 and 2 data packets of the video frame C as a second level.

After receiving the first resource indication information, the sending end can determine that the sending end needs to transmit data through the first resource. And the reliability level of the first resource is the first level, so the transmitting end determines that the data packet with the reliability level of the first level needs to be transmitted. A packet with a first level of reliability is defined as a first packet. In contrast, the transmitting end determines a first data packet with the same reliability level as the first resource in each data packet, and then transmits the first data packet to the receiving end through the first resource.

In addition, the first data packet may be assembled into one or more transport blocks, and the transmitting end transmits each transport block corresponding to the first data packet to the receiving end through the first resource. It should be noted that, the transmitting end sequentially determines each data packet according to the sequence, so as to determine whether the reliability requirement (the reliability requirement can be represented by the reliability level) of the data packet meets the available reliability requirement of the first resource. When the reliability requirement of the data packet meets the reliability requirement provided by the first resource, the data packet is put into a transmission block for transmission, and if the reliability requirement of the data packet does not meet the reliability requirement, the data packet is not put into the transmission block.

In this embodiment, the transmitting end determines the first data packet to be transmitted based on the received first resource indication information, where the reliability level of the first data packet is the same as the reliability level of the first resource indicated by the first resource indication information, and the transmission of the data packet is not performed according to the sequence of the data packets, that is, the transmitting end may send each data packet to the receiving end out of order.

In the technical solution provided in this embodiment, a sending end receives first resource indication information for indicating a first resource, where the reliability level of the first resource is a first level, and then sends a data packet with the reliability level also being the first level on the first resource. In the invention, the transmitting end transmits the first data packet with the same reliability level as the first resource through the first resource, so that the first data packet can be transmitted according to the reliability requirement required by the first data packet, and the transmission reliability of the data is improved.

Referring to fig. 4, fig. 4 is a diagram illustrating a second embodiment of a data transmission method according to the present invention, based on the first embodiment, after step S20, further including:

step S30, receiving second resource indication information, wherein the second resource indication information is used for indicating second resources, and the reliability level of the second resources is a second level.

In this embodiment, the sending end may receive second resource indication information sent by the receiving end, where the second resource indication information is used to indicate a second resource. The second resource has a reliability level, and the reliability level of the second resource is the second level.

In step S40, a second data packet is sent on the second resource, where the reliability level of the second data packet is the second level.

After receiving the second resource indication information, the sending end can determine that the sending end needs to transmit data through the second resource. And the reliability level of the second resource is the second level, so the transmitting end determines that the data packet with the reliability level of the second level needs to be transmitted. A data packet with a reliability level of the second level is defined as a second data packet. In contrast, the transmitting end determines a second data packet with the same reliability level as the second resource in each data packet, and then transmits the second data packet to the receiving end through the second resource.

The second data packet may be assembled into one or more transport blocks, and the transmitting end transmits each transport block corresponding to the second data packet to the receiving end through the second resource.

It should be noted that, the receiving end may issue the first resource indication information first, the transmitting end then transmits the first data packet to the receiving end through the first resource indication information, and after the receiving end receives the first data packet, the receiving end sends the second resource indication information to the transmitting end, that is, step S30 occurs after step S20. However, the receiving end may first issue the second resource indication information, and after receiving the second data packet transmitted by the transmitting end based on the second resource indication information, the receiving end issues the first resource indication information to the transmitting end, that is, step S30 and step S40 are located before step S10. In addition, the receiving end may issue the first resource indication information and the second resource indication information at the same time, that is, step S30 and step S40, and step S10 and step S20 may be performed at the same time.

In the technical solution provided in this embodiment, the sending end receives second resource indication information for indicating the second resource, where the reliability level of the second resource is the second level, and then sends a data packet with the reliability level also being the second level on the second resource. In the invention, the sending end transmits the second data packet with the same reliability level as the second resource through the second resource, so that the second data packet can be transmitted according to the reliability requirement required by the second data packet, and the transmission reliability of the data is improved.

Referring to fig. 5, fig. 5 is a diagram showing a third embodiment of a data transmission method according to the present invention, before step S10 based on the first or second embodiment, further including:

in step S50, first data amount indication information is sent, where the first data amount indication information is used to indicate the data amount of the first data packet to be transmitted with the reliability level being the first level, or the first data amount indication information is used to indicate the total data amount of the data to be transmitted by the sending end.

In this embodiment, before the transmitting end transmits the first data packet, the transmitting end sends information to the receiving end to inform the receiving end to allocate first resources required for transmitting the first data packet to the transmitting end. Specifically, before the transmitting end transmits data, the receiving end allocates resources based on the data to be transmitted by the transmitting end. The transmitting end firstly determines the data quantity of the first data packet, the reliability grade of the first data packet needs to be determined, and then generates first data quantity indication information based on the reliability grade of the first data packet and the data quantity, wherein the first data quantity indication information is used for indicating the data quantity of the first data packet to be transmitted, the reliability grade of which is the first grade.

After receiving the first data quantity indication information, the receiving end analyzes the first data quantity indication information to determine that the reliability level of the first data packet to be transmitted by the sending end is the first level, the first data quantity of the first data packet can be determined, the receiving end allocates a first resource with the reliability level of the first level, and the first resource can transmit one or more data blocks. The receiving end generates first resource indication information based on the first resource and sends the first resource indication information to the sending end.

In addition, the first data amount indication information is used for indicating the total data amount of the data to be transmitted by the sending end. Specifically, the transmitting end is a terminal, the receiving end is a base station, and an XR (extended-range) server generates a duty ratio of an uplink resource with a reliability level of a first level, and the XR notifies the base station to enable the base station to extract the duty ratio from the XR server. After the terminal sends the total data volume of the data to be transmitted to the base station, the base station can determine the data volume of the first data packet with the reliability level of the first level through the duty ratio and the total data volume, and the base station can allocate uplink resources with the reliability level of the first level to the terminal through the data volume of the first data packet. In addition, the duty ratio of the data to be transmitted with the reliability level of the first level is cached in the application layer of the sending end, the application layer of the sending end informs the access layer of the sending end, and the access layer of the sending end informs the access layer of the receiving end, so that the receiving end obtains the duty ratio of the data to be transmitted with the reliability level of the first level.

In the technical scheme provided by the embodiment, the sending end sends the first data quantity indication information to the receiving end, so that the receiving end sends the first resource indication information to the sending end, and further the sending end sends the first data packet with the same reliability level as the first resource indicated by the first resource indication information.

Referring to fig. 6, fig. 6 is a diagram illustrating a fourth embodiment of a data transmission method according to the present invention, and before step S30, further includes:

in step S60, second data amount indication information is sent, where the second data amount indication information is used to indicate the data amount of the second data packet to be transmitted with the reliability level being the second level, or the second data amount indication information is used to indicate the total data amount of the data to be transmitted by the sending end.

In this embodiment, before the transmitting end transmits the second data packet, the transmitting end sends information to the receiving end to notify the receiving end to issue the second resource corresponding to the second data packet. Specifically, before the transmitting end transmits data, the receiving end allocates resources based on the data to be transmitted by the transmitting end. The transmitting end firstly determines the data quantity of the second data packet, the reliability grade of the second data packet needs to be determined, and then generates second data quantity indication information based on the reliability grade of the second data packet and the data quantity, wherein the second data quantity indication information is used for indicating the data quantity of the second data packet to be transmitted, the reliability grade of which is the second grade.

After receiving the second data quantity indication information, the receiving end analyzes the second data quantity indication information to determine that the reliability level of the second data packet to be transmitted by the sending end is the second level, the second data quantity of the second data packet can be determined, the receiving end configures second resources with the reliability level of the second level, and the second resources can bear the data of the second data quantity for transmission. The receiving end generates second resource indication information based on the second resource and sends the second resource indication information to the sending end.

In addition, the second data amount indication information is used for indicating the total data amount of the data to be transmitted by the sending end. Specifically, the transmitting end is a terminal, the receiving end is a base station, and if the XR (extended-range) server generates the duty ratio of the uplink resource with the reliability level of the second level, the XR notifies the base station again to enable the base station to extract the duty ratio from the XR server. After the terminal sends the total data volume of the data to be transmitted to the base station, the base station can determine the data volume of the second data packet with the reliability level of the first level through the duty ratio and the total data volume, and the base station can allocate uplink resources with the reliability level of the second level to the terminal through the data volume of the second data packet. In addition, the duty ratio of the data to be transmitted with the reliability level of the first level is cached in the application layer of the sending end, the application layer of the sending end informs the access layer of the sending end, and the access layer of the sending end informs the access layer of the receiving end, so that the receiving end obtains the duty ratio of the data to be transmitted with the reliability level of the first level.

In addition, the first data amount indication information and the second data amount indication information may be transmitted to the receiving end through a BSR (Buffer State Report, buffer status report) form. Referring to fig. 7, each DRB (Data Radio Bearer ) group is arranged from small to large by DRB ID, occupying a corresponding position in the BSR. Reporting the data quantity to be transmitted of the corresponding DRB group, and filling '0' in the corresponding position even if one DRB group has no data to be transmitted. Because both the base station and the terminal know that the DRB group 3 is a video bearer, the receiving end can configure the number of times of reporting the video bearer for the transmitting end. For example, the receiving end notifies the sending end to configure 2 parts of reporting data for the video bearer, so that the sending end places two parts of data to be transmitted in the DRB group 3, for example, two DRB groups 3 in fig. 7 have corresponding data to be transmitted. Therefore, both parties know in advance that the video bearer contains two reports of data to be transmitted, and the reports correspond to important data and non-important data respectively, and the base station can correctly read the data structure of the BSR. It can be understood that the DRB group corresponding to the video bearer may include N flows, that is, N data to be transmitted may be reported, and specifically, configured by the receiving end. The location of the first data indication information and the second data indication information in the BSR may be configured by the receiving end using RRC (Radio Resource Control ), or may be specified by a protocol, without any operation between the transmitting end and the receiving end. For example, DRB group 3 located above is first data amount indication information indicating that the data amount of which the reliability level is the first level is 200Bytes; the DRB group 3 located below is second data amount indication information indicating that the data amount of which the reliability level is the second level is 800Bytes.

The transmitting end can also report the data information to the receiving end by another BSR. Referring to fig. 8, each DRB group corresponds to a bit in a bit map, and a bit of 1 indicates that the corresponding DRB group has data to be reported, and a bit of 0 indicates that the corresponding DRB group has no data to be reported. The

DRB groups

1, 3 and 4 have data to be transmitted and the DRB group 2 has no data to be transmitted. Among three DRB groups to be reported, DRB group 3 reports two data, which correspond to the first data quantity indication information with the reliability level of the first level and the second data quantity indication information with the reliability level of the second level, respectively. The DRB group 3 is video frame data.

DRB groups

1 and 4 are not video frame data, and there is no need to distinguish important and non-important data. It is to be understood that DRB group 3 located above is first data amount indication information indicating that the data amount of the reliability level of the first level is 200Bytes; the DRB group 3 located below is second data amount indication information indicating that the data amount of which the reliability level is the second level is 800Bytes.

In the technical solution provided in this embodiment, the sending end sends the second data quantity indication information to the receiving end, so that the receiving end sends the second resource indication information to the sending end, and further, the sending end sends a second data packet with the same reliability level as the second resource indicated by the second resource indication information.

Referring to fig. 9, fig. 9 is a fifth embodiment of a data transmission method according to the present invention, and before step S10, further includes:

step S70, receiving service resource indication information, wherein the service resource indication information is used for indicating the reliability level of the resource of the data packet for transmitting the first service.

In this embodiment, before transmitting data, the transmitting end sends indication information to the receiving end, where the indication information indicates a service to which the data sent by the transmitting end belongs. The importance levels of the data corresponding to different services are different. For example, if the service is video, the importance level of the packet of video data includes two levels of high importance and low importance; if the service is voice, the importance levels of the voice data include three levels of high importance, general importance and low importance.

After receiving the prompt information, the receiving end analyzes the prompt information to determine the importance level of the service, and generates service resource indication information based on the importance level. The service resource indication information is used for indicating the reliability level of the resources of the data packet of the first service, and the receiving end can know that the base station can configure the resources with all importance levels of the first service through the service resource indication information. For example, the first service is a video service, the importance level of the video data includes two levels of importance being high and importance being low, and the service resource indication information is used to indicate the resource of the receiving end that can issue two reliability levels. It should be noted that the reliability level may be characterized by a specific value. For example, if the value corresponding to the reliability level is a block error rate and the block error rate is 0.001%, the reliability level is the first level. The reliability levels may also be configured with reliability indication information by the receiving end in advance, where the reliability indication information corresponding to each reliability level is represented by an index value. When the receiving end allocates the resource, the reliability level of the resource is indicated through the reliability indication information.

The first service is also any service, for example the first service may be a video service.

The following will briefly describe examples by taking data to be transmitted as video data, a terminal as a transmitting end, and a base station as a receiving end. Referring to fig. 10, fig. 10 is a schematic diagram of a brief interaction between a terminal and a base station, and the specific steps are as follows:

1. the gNB (base station) establishes a video DRB for the terminal and informs the UE of the reliability resources (service resource indication information) which can be allocated in advance, for example, the gNB can allocate two kinds of reliability resources (uplink resources of reliability);

2. the UE reports the data amount of important data (important data is for example, the first data includes) and the data amount of non-important data (non-important data is for example, the second data packet) in the video frame data to the gNB, for example, important data 200B and non-important data 800B;

3. the gNB firstly allocates uplink resources with one reliability level (the uplink resources are for example second resources with the second reliability level) to the UE, for example, firstly allocates uplink resources with common reliability resources;

4. the UE assembles the video frame data packets 1 and 3 (the reliability level of the

data packets

1 and 3 is, for example, the second level) into transport blocks for transmission to the gNB, where the

data packets

1 and 3 may correspond to one transport block respectively, and may first transmit the transport block corresponding to the data packet 1 through the uplink resource of the normal reliability, and transmit the transport block corresponding to the data packet 3 through the uplink resource of the normal reliability;

5. The gNB further allocates another uplink resource (for example, the uplink resource is a first resource with the reliability level being the first level) to the UE, for example, allocates an uplink resource with high reliability;

6. the UE assembles video frame data packet 2 (the reliability level of packet 2 is, for example, the first level) into transport blocks for transmission to the gNB.

In the technical scheme provided by the embodiment, the sending end receives the service resource indication information issued by the receiving end, so that the receiving end can accurately determine the reliability level of the resource for transmitting the data packet based on the service resource indication information.

In an embodiment, a plurality of data queues are provided in the transmitting end, and each data queue is used for buffering data packets with different reliability levels. For example, a first data queue in the transmitting end is used for buffering a first data packet with a first reliability level, and a second data queue in the transmitting end is used for buffering a second data packet with a second reliability level. The data packets buffered in the data queues may be transmitted by the RLC entity, i.e. the first data packet buffered in the first data queue is transmitted by the first RLC entity and the second data packet buffered in the second data queue is transmitted by the second RLC entity.

The following describes the present embodiment in detail with the transmitting side provided with the first RLC entity and the second RLC entity.

Referring to fig. 11, a transmitting end sets two RLC entities, one RLC entity transmits a data packet with a reliability level of a first level, and the other RLC entity transmits a data packet with a reliability level of a second level. It is assumed that the RLC entity (first RLC entity) on the left side of fig. 11 transmits important data (reliability level of important data is a first level), and the RLC entity (second RLC entity) on the right side of fig. 11 transmits non-important data (reliability level of non-important data is a second level). And after PDCP layer numbers are respectively 1, 2 and 3, the three data packets corresponding to the video frames are respectively sent to two RLC entities for processing according to different importance, important data are sent to a left RLC entity, non-important data are sent to a right RLC entity, and the two RLC entities respectively allocate RLC numbers to the received data, wherein the numbers are shown in fonts in figure 11. When the transmitting end constructs the transmission block, data are extracted from two different RLC entities according to the reliability level of the data packet, so that different reliability transmission of queues to which the two RLC entities belong is realized. After receiving the data packets, two RLC entities of the receiving party respectively submit the data packets to the PDCP entity of the receiving party, and the PDCP entity of the receiving party orders the data packets from the two RLC entities according to RLC numbers, thereby ensuring that the received data packets can be restored to video frames.

It should be noted that, when the transmitting end transmits the first data packet and the second data packet, data needs to be extracted from the corresponding data queues to fill in the transport block, so that the transport block is transmitted to the receiving end through the resource. The reliability level of the data packets stored in different data queues is different, i.e. the block error rate of different data queues is different. When the transmission block is adopted for data transmission, data can be extracted from the data queue with the block error rate and filled into the transmission block, and if all data in the data queue with the low block error rate requirement is insufficient to occupy all storage space of the transmission block, the extracted data from the data queue with the high block error rate requirement is required to be filled into the data block. In addition, if all data in the data queue with low block error rate requirement is not enough to occupy all storage space of the transport block, padding can be filled in the space where the transport block does not store data. Whether to fill the transmission block with data with high block error rate requirement or to fill the transmission block with padding is determined by the configuration of the transmitting end by the receiving end in advance.

Specifically, when the transmitting end constructs a transport block, a set of RLC entities satisfying the reliability level of the data packet is first determined. The transmitting end starts to fetch data from each RLC entity matched with the data packet (the data is stored in the RLC entity in the form of the data packet) until the transmission block size required by the bottom layer is reached. For a data packet with a reliability level of the third level, the block error rate of the RLC entity corresponding to the data packet is 1%, the data amount of the resources of one transmission of the transport block is 500Bytes, and when the transmission segment constructs the transport block, the steps are as follows:

1. Firstly, determining that two RLC entities meet the requirements, namely, the RLC entities with the block error rate requirement of 10% and 1% are the RLC entities corresponding to the data packets with the reliability level of the third level;

2. the transmitting end firstly takes data from the RLC entity with the block error rate of 1 percent and fills the data into the transmission block, if the data quantity of the data in the RLC entity is more than 500Bytes, the data is not taken from the RLC entity with the block error rate of 10 percent, and at the moment, all the data packets in the transmission block come from the RLC entity with the block error rate of 1 percent; if the data amount of the data in the RLC with the block error rate of 1% is less than 500Bytes, after all the data in the RLC is filled into the transport block, the data is fetched from the RLC entity with the block error rate of 10%, and then the transport block is filled, that is, a part of the data in the transport block is from the RLC entity with the block error rate of 1%, and a part of the data is from the RLC entity with the block error rate of 10%.

The invention also provides a data transmission method.

Referring to fig. 12, fig. 12 is a diagram of a sixth embodiment of a data transmission method of the present invention, applied to a receiving end, including:

step S100, first resource indication information is sent, wherein the first resource indication information is used for indicating first resources, and the reliability level of the first resources is a first level.

Step S110, a first data packet transmitted on a first resource is received, and the reliability level of the first data packet is a first level.

data packets

number

In addition, the first data packet may be assembled into one or more transport blocks, and the transmitting end transmits each transport block corresponding to the first data packet to the receiving end through the first resource. It should be noted that, when the reliability level of the data packet meets the reliability level available by the first resource, the data packet is put into the transport block for transmission, and if not, the data packet is not put into the transport block.

In the technical solution provided in this embodiment, the receiving end sends first resource indication information for indicating the first resource, where the reliability level of the first resource is the first level, and the receiving end receives the data packet based on sending the data packet with the reliability level also being the first level on the first resource. In the invention, the transmitting end transmits the first data packet with the same reliability level as the first resource through the first resource, so that the first data packet can be transmitted according to the reliability requirement required by the first data packet, and the transmission reliability of the data is improved.

Referring to fig. 13, fig. 13 is a diagram showing a seventh embodiment of a data transmission method according to the present invention, based on the sixth embodiment, after step S110, further including:

step S120, sending second resource indication information, where the second resource indication information is used to indicate a second resource, and the reliability level of the second resource is a second level.

In this embodiment, the receiving end sends second resource indication information to the sending end, where the second resource indication information is used to indicate the second resource. The second resource has a reliability level, and the reliability level of the second resource is the second level.

Step S130, receiving a second data packet transmitted on a second resource, wherein the reliability level of the second data packet is a second level.

It should be noted that, the receiving end may issue the first resource indication information first, the transmitting end then transmits the first data packet to the receiving end through the first resource indication information, and after the receiving end receives the first data packet, the receiving end sends the second resource indication information to the transmitting end, that is, step S120 occurs after step S110. However, the receiving end may first issue the second resource indication information, and after receiving the second data packet transmitted by the transmitting end based on the second resource indication information, the receiving end issues the first resource indication information to the transmitting end, that is, step S120 and step S130 are located before step S100. In addition, the receiving end may issue the first resource indication information and the second resource indication information at the same time, that is, step S120 and step S130, and step S100 and step S110 may be performed at the same time.

In the technical solution provided in this embodiment, the receiving end sends second resource indication information for indicating the second resource, where the reliability level of the second resource is the second level, and the receiving end receives a data packet sent by the second resource and having the reliability level also of the second level. In the invention, the sending end transmits the second data packet with the same reliability level as the second resource through the second resource, so that the second data packet can be transmitted according to the reliability requirement required by the second data packet, and the transmission reliability of the data is improved.

Referring to fig. 14, fig. 14 is a diagram showing an eighth embodiment of a data transmission method according to the present invention, and before step S100, further includes:

in step S140, first data amount indication information is received, where the first data amount indication information is used to indicate the data amount of the first data packet to be transmitted with the reliability level being the first level.

It should be noted that, the first data amount indication information indicates a duty ratio of a first data packet to be transmitted, where the reliability level is a first level, and the duty ratio is a data amount ratio of the first data packet to the data to be transmitted. Meanwhile, the first data quantity indication information needs to carry the total data quantity of the data to be transmitted, so that the receiving end determines the data quantity of the first data packet based on the first-level total data quantity of the duty ratio.

In one embodiment, before step S100, the method further includes:

receiving first data quantity indication information, wherein the first data quantity indication information is used for indicating the total data quantity of data to be transmitted by a transmitting end;

In this embodiment, the first data amount indication information is used to indicate a total data amount of data to be transmitted by the transmitting end. Specifically, the transmitting end is a terminal, the receiving end is a base station, and an XR (extended-range) server generates a duty ratio of an uplink resource with a reliability level of a first level, and the XR notifies the base station to enable the base station to extract the duty ratio from the XR server. That is, the receiving end receives first resource duty ratio information, where the first resource duty ratio information is used to indicate the duty ratio of the first resource with the reliability level being the first level.

After the receiving end receives the first data quantity indication information, namely after the terminal sends the total data quantity of the data to be transmitted to the base station, the base station can determine the data quantity of the first data packet with the reliability level of the first level through the duty ratio and the total data quantity, and the base station can allocate uplink resources with the reliability level of the first level to the terminal through the data quantity of the first data packet. That is, the receiving end determines the first resource indication information based on the first data amount indication information and the first resource duty ratio information.

It should be noted that, the duty ratio of the data to be transmitted with the reliability level being the first level is cached in the application layer of the sending end, the application layer of the sending end notifies the access layer of the sending end, and the access layer of the sending end further notifies the access layer of the receiving end, so that the receiving end obtains the duty ratio of the data to be transmitted with the reliability level being the first level.

Referring to fig. 15, fig. 15 is a diagram showing a ninth embodiment of a data transmission method according to the present invention, and before step S120, further includes:

in step S150, second data amount indication information is received, where the second data amount indication information is used to indicate the data amount of the second data packet to be transmitted with the reliability level being the second level, or the second data amount indication information is used to indicate the total data amount of the data to be transmitted by the transmitting end.

It should be noted that the second data amount indication information indicates a duty ratio of a second data packet to be transmitted, where the reliability level is the second level, and the duty ratio is a data amount ratio of the second data packet to the data to be transmitted. Meanwhile, the second data quantity indication information needs to carry the total data quantity of the data to be transmitted, so that the receiving end determines the data quantity of the second data packet based on the second-level total data quantity of the duty ratio.

In addition, the first data amount indication information and the second data amount indication information may be transmitted to the receiving end through a BSR (Buffer State Report, buffer status report) form. Referring to fig. 7, each DRB (Data Radio Bearer ) group is arranged from small to large by DRB ID, occupying a corresponding position in the BSR. Reporting the data quantity to be transmitted of the corresponding DRB group, and filling '0' in the corresponding position even if one DRB group has no data to be transmitted. Because both the base station and the terminal know that the DRB group 3 is a video bearer, the receiving end can configure the number of times of reporting the video bearer for the transmitting end. For example, the receiving end notifies the sending end to configure 2 parts of reporting data for the video bearer, so that the sending end places two parts of data to be transmitted in the DRB group 3, for example, two DRB groups 3 in fig. 7 have corresponding data to be transmitted. Therefore, both parties know in advance that the video bearer contains two reports of data to be transmitted, and the reports correspond to important data and non-important data respectively, and the base station can correctly read the data structure of the BSR. It can be understood that the DRB group corresponding to the video bearer may include N flows, that is, N data to be transmitted may be reported, and specifically, configured by the receiving end. The location of the first data indication information and the second data indication information in the BSR may be configured by the receiving end using RRC (Radio Resource Control ), or may be specified by a protocol, without any operation between the receiving end and the transmitting end. For example, DRB group 3 located above is first data amount indication information indicating that the data amount of which the reliability level is the first level is 200Bytes; the DRB group 3 located below is second data amount indication information indicating that the data amount of which the reliability level is the second level is 800Bytes.

DRB groups

In the second embodiment, before step S120, the method further includes:

receiving second data quantity indication information, wherein the second data quantity indication information is used for indicating the total data quantity of data to be transmitted by a transmitting end;

In this embodiment, the second data amount indication information is used to indicate the total data amount of the data to be transmitted by the transmitting end. Specifically, the transmitting end is a terminal, the receiving end is a base station, and if the XR (extended-range) server generates the duty ratio of the uplink resource with the reliability level of the second level, the XR notifies the base station again to enable the base station to extract the duty ratio from the XR server. That is, the receiving end receives second resource duty ratio information, where the second resource duty ratio information is used to indicate the duty ratio of the second resource with the reliability level being the second level.

After the receiving end receives the second data quantity indication information, that is, after the terminal sends the total data quantity of the data to be transmitted to the base station, the base station can determine the data quantity of the second data packet with the reliability level of the second level through the duty ratio and the total data quantity, and the base station can allocate uplink resources with the reliability level of the second level to the terminal through the data quantity of the second data packet. That is, the receiving end determines the second resource indication information based on the second data amount indication information and the second resource duty ratio information.

It should be noted that, the duty ratio of the data to be transmitted with the reliability level being the second level is cached in the application layer of the sending end, the application layer of the sending end notifies the access layer of the sending end, and the access layer of the sending end further notifies the access layer of the receiving end, so that the receiving end obtains the duty ratio of the data to be transmitted with the reliability level being the second level.

Referring to fig. 16, fig. 16 is a tenth embodiment of a data transmission method according to the present invention, and before step S100, further includes:

step S160, transmitting service resource indication information, where the service resource indication information is used to indicate a reliability level of a resource of a data packet for transmitting the first service.

data packets

In an embodiment, the receiving end is provided with a plurality of data queues, and each data queue is used for receiving data packets with different reliability levels. For example, the third data queue in the receiving end is used for receiving the first data packet with the first reliability level, and the fourth data queue in the receiving end is used for receiving the second data packet with the second reliability level. The data packets received by the data queues may be transmitted by the RLC entity, i.e. the first data packet received by the third data queue is transmitted by the third RLC entity, and the second data packet received by the fourth data queue is transmitted by the fourth RLC entity. It can be understood that the three data queues of the receiving end receive the first data packet sent by the first data queue of the sending end, and the fourth data queue of the receiving end receives the second data packet sent by the second data queue of the sending end; the third data queue transmits the first data packet to the PDCP entity of the receiving end through the third RCL entity, and the fourth data queue transmits the second data packet to the PDCP entity of the receiving end through the fourth RCL entity, and the PDCP sorts the first data packet and the second data packet by the number of the first data packet and the second data packet (the data queue of the transmitting end will number the transmitted data packet, specifically refer to the above description), thereby assembling complete data.

The present invention also provides a transmitting end, referring to fig. 17, a transmitting end 1700 includes:

a first receiving module 1710, configured to receive first resource indication information, where the first resource indication information is used to indicate a first resource, and a reliability level of the first resource is a first level;

the first sending module 1720 is configured to send a first data packet on the first resource, where the reliability level of the first data packet is a first level.

In one embodiment, the transmitting end 1700 includes:

a first receiving module 1710, configured to receive second resource indication information, where the second resource indication information is used to indicate a second resource, and a reliability level of the second resource is a second level;

the first sending module 1720 is configured to send the second data packet on the second resource, where the reliability level of the second data packet is the second level.

In one embodiment, the transmitting end 1700 includes:

the first sending module 1720 is configured to send first data amount indication information, where the first data amount indication information is used to indicate a data amount of a first data packet to be transmitted with a reliability level being a first level, or the first data amount indication information is used to indicate a total data amount of data to be transmitted by a sending end.

In one embodiment, the transmitting end 1700 includes:

The first sending module 1720 is configured to send second data amount indication information, where the second data amount indication information is used to indicate a data amount of a second data packet to be transmitted with a reliability level of a second level, or the second data amount indication information is used to indicate a total data amount of data to be transmitted by a sending end.

In one embodiment, the transmitting end 1700 includes:

the first receiving module 1710 is configured to receive service resource indication information, where the service resource indication information is used to indicate a reliability level of a resource of a data packet for transmitting the first service.

The present invention also provides a receiving end, referring to fig. 18, the receiving end 1800 includes:

a second sending module 1810, configured to send first resource indication information, where the first resource indication information is used to indicate a first resource, and a reliability level of the first resource is a first level;

the second receiving module 1820 is configured to receive a first data packet transmitted on the first resource, where a reliability level of the first data packet is a first level.

In one embodiment, the receiving end 1800 includes:

a second sending module 1810, configured to send second resource indication information, where the second resource indication information is used to indicate a second resource, and a reliability level of the second resource is a second level;

The second receiving module 1820 is configured to receive a second data packet transmitted on a second resource, where the reliability level of the second data packet is a second level.

In one embodiment, the receiving end 1800 includes:

the second receiving module 1820 is configured to receive first data amount indication information, where the first data amount indication information is used to indicate a data amount of a first data packet to be transmitted with a reliability level being a first level.

In one embodiment, the receiving end 1800 includes:

the second receiving module 1820 is configured to receive first resource duty ratio information, where the first resource duty ratio information is used to indicate a duty ratio of a first resource with a reliability level of a first level;

the second receiving module 1820 is configured to receive first data amount indication information, where the first data amount indication information is used to indicate a total data amount of data to be transmitted by the transmitting end;

and the determining module is used for determining the first resource indicating information according to the first data quantity indicating information and the first resource duty ratio information.

In one embodiment, the receiving end 1800 includes:

the second receiving module 1820 is configured to receive second data amount indication information, where the second data amount indication information is used to indicate a data amount of a second data packet to be transmitted with a reliability level of a second level.

In one embodiment, the receiving end 1800 includes:

a second receiving module 1820, configured to receive second resource duty ratio information, where the second resource duty ratio information indicates a duty ratio of a second resource with a reliability level of a second level;

a second receiving module 1820, configured to receive second data amount indication information, where the second data amount indication information is used to indicate a total data amount of data to be transmitted by the transmitting end;

and the determining module is used for determining second resource indicating information according to the second data quantity indicating information and the second resource duty ratio information.

In one embodiment, the receiving end 1800 includes:

a second sending module 1810, configured to send service resource indication information, where the service resource indication information is used to indicate a reliability level of a resource of a data packet for transmitting the first service.

Fig. 19 is a hardware configuration diagram of a terminal device according to an exemplary embodiment.

Terminal device 1900 may include: a processor 191, such as a CPU, memory 192, and transceiver 193. It will be appreciated by those skilled in the art that the structure shown in fig. 19 is not limiting and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components. The memory 192 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The processor 191 may invoke a computer program stored in the memory 192 to perform all or part of the steps of the data transmission method described above.

The transceiver 193 is used to receive information transmitted from an external device and transmit information to the external device.

A non-transitory computer readable storage medium, which when executed by a processor of a terminal device, causes the terminal device to perform the above-described data transmission method.

A computer program product comprising a computer program which, when executed by a processor of a sender, enables the sender to perform the above-described data transmission method.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A data transmission method applied to a transmitting end, comprising:

2. The data transmission method according to claim 1, further comprising:

3. The data transmission method according to claim 1 or 2, characterized in that before the step of receiving the first resource indication information, further comprising:

4. The data transmission method according to claim 2, wherein before the step of receiving the second resource indication information, further comprising:

5. The data transmission method according to claim 1, wherein the first data packet is a data packet of a first service, further comprising:

6. The data transmission method of claim 5, wherein the first service is a video service.

7. The data transmission method according to claim 2, wherein a first data queue buffers the first data packet, the first data packet buffered by the first data queue being transmitted via a first RLC entity;

8. A data transmission method applied to a receiving end, comprising:

9. The data transmission method according to claim 8, further comprising:

10. The data transmission method according to claim 8 or 9, wherein before the step of transmitting the first resource indication information, further comprising:

11. The data transmission method according to claim 8 or 9, wherein before the step of transmitting the first resource indication information, further comprising:

12. The data transmission method according to claim 9, wherein before the step of transmitting the second resource indication information, further comprising:

13. The data transmission method according to claim 9, wherein before the step of transmitting the second resource indication information, further comprising:

14. The data transmission method according to claim 8, wherein the first data packet is a data packet of a first service, further comprising:

15. The data transmission method of claim 14, wherein the first service is a video service.

16. The data transmission method according to claim 9, wherein a third data queue receives the first data packet, the first data packet received by the third data queue being transmitted via a third RLC entity;

17. A transmitting terminal, comprising:

18. A receiving terminal, comprising:

19. A terminal device, comprising: a memory and a processor;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored in the memory, causing the processor to perform the data transmission method of any one of claims 1 to 16.

20. A computer-readable storage medium, wherein computer-executable instructions are stored in the computer-readable storage medium, which when executed by a processor are adapted to implement the data transmission method of any one of claims 1 to 16.

21. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the data transmission method of any one of claims 1 to 16.