WO2022151986A1

WO2022151986A1 - Data transmission method and apparatus, and device

Info

Publication number: WO2022151986A1
Application number: PCT/CN2021/143061
Authority: WO
Inventors: 赵思聪; 周化雨; 雷珍珠
Original assignee: 展讯通信（上海）有限公司
Priority date: 2021-01-15
Filing date: 2021-12-30
Publication date: 2022-07-21
Also published as: CN114765500A

Abstract

A data transmission method and apparatus, and a device. The method comprises: receiving first DCI and second DCI, the first DCI and the second DCI each comprising feedback group information; if the feedback group information of the first DCI is consistent with the feedback group information of the second DCI, using transmission blocks (TBs) scheduled by the first DCI and TBs scheduled by the second DCI as a feedback group, and determining a feedback subframe corresponding to the feedback group, the feedback subframe corresponding to the feedback group being used for transmitting feedback information of the TBs in the feedback group; and transmitting the feedback information of the TBs in the feedback group on the determined feedback subframe. The present application can increase the rate of downlink data transmission in a multi-TB scheduling mode.

Description

Data transmission method, apparatus and device

technical field

The present application relates to the field of communications, and in particular, to a data transmission method, apparatus and device.

Background technique

The scheduling method of multiple transmission blocks (TBs), that is, one downlink control information (DCI) can schedule multiple TBs at one time. In the current version of the protocol, when scheduling TBs to transmit downlink data, a maximum of 8 TBs can be scheduled at one time by one DCI, that is, a maximum of 8 parallel Hybrid Automatic Repeat reQuest (HARQ) process IDs are used at a time. In addition, in the multi-TB scheduling mode, there is a fixed scheduling delay, and the fixed scheduling delay is 2 subframes. In Half Duplex Frequency Division Duplex (HD-FDD) mode, in the 2 subframes before the downlink data transmission is switched to the uplink data transmission, the network side device cannot send DCI, and the uplink data transmission switches to In the first two subframes after downlink data transmission, the network side device cannot send the TB, which is caused by the above-mentioned fixed scheduling delay.

Due to the fixed scheduling delay and the limitation of the maximum number of 8 TBs, the transmission rate of downlink data in the current multi-TB scheduling mode of the HD-FDD mode is relatively low.

SUMMARY OF THE INVENTION

The present application provides a data transmission method, apparatus and device, which can improve the downlink data transmission rate in a multi-TB scheduling manner.

In a first aspect, an embodiment of the present application provides a data transmission method, including:

receiving first downlink control information (DCI) and second downlink control information, where both the first downlink control information and the second downlink control information include feedback group information;

If the feedback group information of the first downlink control information is consistent with the feedback group information of the second downlink control information, the transport block (TB) scheduled by the first downlink control information is matched with the second downlink control information. The transmission block of the information scheduling is used as a feedback group, and the feedback subframe corresponding to the feedback group is determined; the feedback subframe corresponding to the feedback group is used to transmit the feedback information of the transmission block in the feedback group;

The feedback information of the transport blocks in the feedback group is transmitted on the determined feedback subframe.

In this method, if the feedback group information of the first DCI is consistent with the feedback group information of the second DCI, the TB scheduled by the first DCI and the TB scheduled by the second DCI are regarded as one feedback group, and the feedback subframe corresponding to the feedback group is determined, The feedback information of the TBs in the feedback group is transmitted on the determined feedback subframe, thereby realizing the transmission of the feedback information for the TBs, thereby making it possible to increase the data transmission rate in the multi-TB scheduling manner.

In a possible implementation manner, the determining the feedback subframe corresponding to the feedback group includes:

determining the bundling group to which the transport block in the feedback group belongs, and determining the feedback subframe corresponding to the bundling group;

The transmitting, on the determined feedback subframe, the feedback information of the transport blocks in the feedback group, includes:

The feedback information of the transport block in the bundling group corresponding to the feedback subframe is transmitted on the determined feedback subframe.

In a possible implementation manner, the determining the binding group to which the transport block in the feedback group belongs includes:

The transport blocks in the feedback group are divided according to a preset first quantity to obtain several binding groups.

In a possible implementation manner, the determining the feedback subframe corresponding to the bundling group includes:

The feedback subframe position corresponding to the 0th bundling group is max{n ₀ +4,(n _L' +2)}, where n ₀ is the subframe where the last TB of the 0th bundling group is located, and n _{L '} is the subframe where the last TB in the feedback group is located;

The position of the feedback subframe corresponding to the bth bundling group is max{n _b +4,s _b-1 +N _b-1 }, where n _b is the subframe where the last TB of the bth bundling group is located, s _b-1 is the feedback subframe corresponding to the b-1 th bundling group, and N _b-1 is the number of times the feedback information of the b-1 th bundling group is repeatedly transmitted.

In a second aspect, an embodiment of the present application provides a data transmission method, including:

receiving the first downlink control information and the second downlink control information;

determining that the TB scheduled by the first downlink control information and the TB scheduled by the second downlink control information are continuous;

Taking the transport block scheduled by the first downlink control information and the position scheduled by the second downlink control information as a feedback group, and determining a feedback subframe corresponding to the feedback group;

In this method, if it is determined that the TBs scheduled by the first DCI and the TBs scheduled by the second DCI are continuous, the TBs scheduled by the first DCI and the TBs scheduled by the second DCI are regarded as a feedback group, and the feedback subframes corresponding to the feedback groups are determined. The feedback information of the TBs in the feedback group is transmitted on the determined feedback subframe, thereby realizing the transmission of the feedback information for the TBs, thereby making it possible to increase the data transmission rate in the multi-TB scheduling manner.

The transport blocks in the feedback group are divided according to a preset first quantity to obtain several binding groups. In a possible implementation manner, the determining the feedback subframe corresponding to the bundling group includes:

The feedback subframe position corresponding to the 0th bundling group is max{n ₀ +4,(n _L' +2)}, where n ₀ is the subframe where the last TB of the 0th bundling group is located, and n _{L '} is the subframe where the last transport block in the feedback group is located;

The feedback subframe corresponding to the bth bundling group is max{n _b +4,s _b-1 +N _b-1 }, where n _b is the subframe where the last transport block of the bth bundling group is located, s _b-1 is the feedback subframe corresponding to the b-1 th bundling group, and N _b-1 is the number of times the feedback information of the b-1 th bundling group is repeatedly transmitted.

In a possible implementation manner, the determining that the transport block scheduled by the first downlink control information and the transport block scheduled by the second downlink control information are consecutive includes:

It is determined that the difference between the subframe where the last transport block scheduled by the first downlink control information is located and the subframe where the first transport block scheduled by the second downlink control information is located is less than a preset second value.

In a third aspect, an embodiment of the present application provides a data transmission device, including:

a receiving unit, configured to receive first downlink control information and second downlink control information, wherein both the first downlink control information and the second downlink control information include feedback group information;

a determining unit, configured to, if the feedback group information of the first downlink control information and the feedback group information of the second downlink control information are consistent, determine the transport block scheduled by the first downlink control information and the second downlink control information The transmission block scheduled by the downlink control information is used as a feedback group, and the feedback subframe corresponding to the feedback group is determined; the feedback subframe corresponding to the feedback group is used to transmit the feedback information of the transmission block in the feedback group;

A sending unit, configured to transmit the feedback information of the transport blocks in the feedback group on the determined feedback subframe.

In a fourth aspect, an embodiment of the present application provides a data transmission device, including:

a receiving unit, configured to receive the first downlink control information and the second downlink control information;

a first determining unit, configured to determine that the TB scheduled by the first downlink control information and the TB scheduled by the second downlink control information are consecutive;

a second determining unit, configured to use the transport block scheduled by the first downlink control information and the position scheduled by the second downlink control information as a feedback group, and determine a feedback subframe corresponding to the feedback group;

In a fifth aspect, an embodiment of the present application provides an electronic device, including:

a transceiver, configured to receive first downlink control information and second downlink control information, where both the first downlink control information and the second downlink control information include feedback group information

a processor, configured to, if the feedback group information of the first downlink control information and the feedback group information of the second downlink control information are consistent, compare the transport block scheduled by the first downlink control information with the second downlink control information The transmission block scheduled by the downlink control information is used as a feedback group, and the feedback subframe corresponding to the feedback group is determined; the feedback subframe corresponding to the feedback group is used to transmit the feedback information of the transmission block in the feedback group;

The transceiver is further configured to transmit the feedback information of the transport blocks in the feedback group on the determined feedback subframe.

In a sixth aspect, an embodiment of the present application provides an electronic device, including:

a transceiver, configured to receive the first downlink control information and the second downlink control information;

a processor, configured to determine that the TB scheduled by the first downlink control information and the TB scheduled by the second downlink control information are continuous; and the transport block scheduled by the first downlink control information and the second downlink control information The position of the information scheduling is used as a feedback group, and the feedback subframe corresponding to the feedback group is determined;

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when it runs on a computer, causes the computer to execute any one of the first aspect or the second aspect method described in item.

In an eighth aspect, the present application provides a computer program for executing the method of the first aspect when the computer program is executed by a computer.

In a possible design, the program in the eighth aspect may be stored in whole or in part on a storage medium packaged with the processor, or may be stored in part or in part in a memory not packaged with the processor.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of a prior art data transmission sequence;

2 is a schematic diagram of a data transmission sequence of the application;

3 is a schematic diagram of another data transmission sequence of the application;

4 is a flowchart of an embodiment of the data transmission method of the present application;

5 is a schematic diagram of another data transmission sequence of the present application;

6 is a flowchart of another embodiment of the data transmission method of the present application;

FIG. 7 is a schematic structural diagram of an embodiment of a data transmission device of the present application;

FIG. 8 is a schematic structural diagram of another embodiment of the data transmission apparatus of the present application.

Detailed ways

The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application, and are not intended to limit the present application.

Currently, downlink data transmission in the multi-TB scheduling mode of the HD-FDD mode has a fixed scheduling delay and a limit of scheduling a maximum of 8 TBs in one DCI. Referring to FIG. 1 , a multi-TB scheduling sequence diagram when the downlink data transmission rate is the maximum in the multi-TB scheduling mode is provided. Specifically, if the network-side device sends DCI to the electronic device through the Physical Downlink Control Channel (PDCCH) on subframe No. 1, the DCI schedules 8 TBs, and after a fixed scheduling delay of 2 subframes, the network The side device will transmit the above-mentioned 8 TBs through the Physical Downlink Shared Channel (PDSCH) on subframes 3 to 10, that is, TB0 to TB7 in Figure 1. The 8 TBs are received on subframes No. 10 to 10, and after 1 subframe of uplink/downlink conversion, the acknowledgment (ACK) of the above 8 TBs is sent to the network side equipment on subframes 12 to 14. )/Negative Acknowledgement (NACK) feedback, after that, after 1 uplink/downlink conversion subframe, the network side device sends DCI on the 16th subframe, and so on, to realize the network side device's scheduling of TB and the network side The transmission of downstream data between a device and an electronic device. It should be noted that

subframes

11 and 15 in FIG. 1 are switching subframes from downlink subframes to uplink subframes, and switch subframes from uplink subframes to downlink subframes, respectively, and no data transmission is performed.

However, in the multi-TB scheduling mode shown in Fig. 1, a maximum of 8 TBs are scheduled at a time using DCI. To complete the transmission and feedback of 8 TBs, at least 15 subframes need to be occupied, so that the maximum downlink data transmission rate is only (8× 1000)/15=533.4kbps. However, if the number of TBs scheduled at one time by DCI is less than 8, the downlink data transmission rate will be less than 533.4kbps. At present, 14 HARQ processes are planned to be introduced in the single-TB scheduling mode, so that the maximum downlink data transmission rate can reach 705Kbps, and the downlink data transmission rate in the multi-TB scheduling mode is relatively low.

For this reason, in order to avoid the waste of resources caused by the inability to transmit downlink data, such as subframe No. 1, subframe No. 2, subframe No. 16, and subframe No. 17 shown in FIG. In the example, two scheduling delays may be preset, namely the first scheduling delay and the second scheduling delay. Considering the compatibility, the first scheduling delay may be the fixed scheduling delay in the prior art, which is currently 2 subframes, the purpose of setting the second scheduling delay is to send a DCI before the downlink subframe is switched to the uplink subframe. . For example, taking Fig. 1 as an example, DCI can be sent in any subframe from subframe 2 to subframe 10 to schedule subframe 16 and subframe 17 to transmit TB, thereby reducing resource waste and improving downlink data transmission. rate, in this case, the second scheduling delay may be set to a certain number of subframes in the range of 6 to 10.

Optionally, the second scheduling delay may be 7 subframes. In this case, for example, as shown in FIG. 2 , the electronic device may receive DCI through the PDCCH in subframe No. 9, the DCI schedules 2 TBs, and the scheduling delay information may be is the second scheduling delay, that is, 7 subframes, then the electronic device can determine that the subframes for transmitting the above 2 TBs are the 16th and 17th subframes accordingly. At this time, the maximum downlink data transmission rate can be increased to (10×1000)/15=667kbps.

In order to further increase the downlink data transmission rate, the number of consecutive TBs scheduled before one feedback can be increased. At present, without considering the repeated transmission of feedback information, there are 3 subframes for transmitting feedback information of consecutive TBs, and each subframe can transmit feedback information of up to 4 TBs. Therefore, if considering compatibility with the prior art, The number of consecutive TBs scheduled before one feedback can be up to 12. At this time, the maximum downlink data transmission rate can be increased to (12×1000)/17=706kbps. For example, as shown in Figure 3:

The network-side device sends a DCI to the electronic device on subframe 1. The DCI scheduling delay is 2 subframes, 8 TBs are scheduled, and the scheduled 8 TBs are transmitted on subframes 3 to 10; the network The side device sends a DCI to the electronic device on subframe 9. The DCI scheduling delay is 2 subframes, 4 TBs are scheduled, and the 4 TBs are transmitted on subframes 11 to 14; thus, the network side The device can schedule 12 TBs for continuous transmission through 2 DCIs; the electronic device can transmit the feedback information of these 12 TBs to the network side equipment in subframes 16 to 18; so far, the network side equipment has completed a continuous transmission. For TB scheduling, the electronic device completes a feedback of the received information for the TB;

The network-side device sends a DCI to the electronic device on the 13th subframe. The DCI scheduling delay is 7 subframes, and 4 TBs are scheduled. These 4 TBs are transmitted on the 20th subframe to the 23rd subframe; the network The side device sends a DCI to the electronic device on the 22nd subframe. The DCI scheduling delay is 2 subframes, and 8 TBs are scheduled. These 8 TBs are transmitted on the 24th subframe to the 31st subframe; thus the network The side device schedules 12 consecutively transmitted TBs through 2 DCIs, and the electronic device can transmit the feedback information of the 12 TBs to the network side device in subframes 33 to 35; For the scheduling of the TB, the electronic device completes a feedback of the received information for the TB.

In the following, for the convenience of description, the subframe for transmitting the feedback information of the TB is referred to as the feedback subframe. For example, the subframes 16 to 18 and subframes 33 to 35 may be referred to as the feedback subframes. .

It should be noted that, the above descriptions and examples are compatible with the prior art so that the number of consecutive TBs is at most 12 as an example, which is not intended to limit the number of consecutive TBs scheduled in the present application. For example, if repeated transmission is not considered and a subframe transmits up to 4 TBs, since one DCI can schedule up to 8 TBs, the number of consecutive TBs scheduled by two DCIs can reach 16. At this time, , the number of feedback subframes can be increased from 3 to 4, and the scheduling of consecutive TBs and the feedback of received information for the TBs can also be completed once.

Based on the above description, if the number of consecutively scheduled TBs exceeds 8, it is necessary to specify which subframes to transmit the feedback information of the TBs. Therefore, how the electronic device completes the transmission of the feedback information of the DCI-scheduled TB based on the received DCI is a problem that needs to be solved.

To this end, an embodiment of the present application provides a data transmission method, which can enable an electronic device to complete the transmission of feedback information for TBs after the number of scheduled consecutive TBs exceeds 8, so that the data transmission rate in the multi-TB scheduling mode can be increased. improvement is possible.

The present application can be applied to various communication systems, such as machine-type communication (MTC) systems, long term evolution (Long term evolution, LTE), new radio interface (New Radio, NR) and the like. The electronic device of the present application may include, but is not limited to, a handheld device with a wireless communication function, a vehicle-mounted device, a wearable device, and the like. The network side device in this application may be a base station, and in different communication systems, the implementation types of the base station may be different, which is not limited in this application.

FIG. 4 is a flowchart of an embodiment of a data transmission method of the present application. As shown in FIG. 4 , the method may include:

Step 401: The electronic device receives the first DCI and the second DCI, and both the first DCI and the second DCI include feedback group information.

The first DCI and the second DCI are generally two adjacent DCIs in the DCIs received by the electronic device.

The feedback group information is used to indicate the feedback group to which the TB scheduled in the DCI belongs. A feedback group is a set of TBs, and the feedback information of the TBs in the feedback group is transmitted on consecutive subframes. For example, in Figure 3, TB0 to TB11 transmitted on subframes 3 to 14 constitute a feedback group. At this time, the feedback group information included in the DCI transmitted on subframe 1 and the feedback group information transmitted on subframe 9 The feedback group information included in the DCI is consistent. The feedback information of the TB in the feedback group is transmitted on subframes 16 to 18, and TB0 to TB11 transmitted on subframes 20 to 32 also constitute a feedback group. At this time, the feedback group information included in the DCI transmitted on the 13th subframe is the same as the feedback group information included in the DCI transmitted on the 22nd subframe, and the feedback information of the TB in the feedback group is between the 34th subframe and the 36th subframe. and the above two feedback groups are adjacent feedback groups.

Wherein, the first DCI and the second DCI may be carried by the PDCCH.

In a possible implementation manner, a new bit may be added to the DCI as a feedback group indication bit, and the feedback group information in the DCI is indicated by the feedback group indication bit. For example, in order to distinguish two adjacent feedback groups, the feedback group information of the two adjacent feedback groups may be divided into the first group and the second group, that is, the feedback group information may include: the first feedback group and the second feedback group, At this time, the feedback group indication bit is 1 bit to realize the indication of the feedback group information. When the feedback group indication bit is 0, it indicates the first feedback group, and when the feedback group indication bit is 1, it indicates the second feedback group. Continuing the previous example, assuming that TB0-TB11 transmitted on subframes 3 to 14 constitute the first feedback group, and TB0-TB11 transmitted on subframes 20 to 32 constitute the second feedback group, then The feedback group indication bits in the DCI transmitted on the subframe and the subframe 9 are all 0, and the feedback group indication bits in the DCI transmitted on the subframe 13 and the subframe 22 are both 1.

Step 402: If the feedback group information of the first DCI is consistent with the feedback group information of the second DCI, the electronic device uses the TB scheduled by the first DCI and the TB scheduled by the second DCI as a feedback group, and determines the feedback subframe corresponding to the feedback group. .

The above-mentioned TB may be carried by PDSCH.

The feedback subframe corresponding to the feedback group is the subframe in which the feedback information of the TBs in the feedback group is transmitted.

If compatibility with the prior art is considered, in this embodiment of the present application, one feedback group may include up to 12 TBs, that is, the first DCI and the second DCI may schedule up to 12 consecutive TBs.

Step 403: The electronic device transmits the feedback information of the TBs in the feedback group on the determined feedback subframe.

The feedback information of the TB is used to indicate whether the TB is correctly decoded, and the feedback information of each TB can be ACK or NACK.

Wherein, determining the feedback subframe corresponding to the feedback group in step 402 may include:

Determine the bundling group to which each TB in the feedback group belongs, and determine the feedback subframe corresponding to each bundling group;

Then, step 403 may include: transmitting the feedback information of the TBs in the bundling group corresponding to the feedback subframe on the determined feedback subframe.

In a possible implementation manner, when determining the binding group to which each TB in the feedback group belongs, the above-mentioned binding group may be obtained by dividing the TBs in the feedback group according to a preset first number. The value of the first number is not limited in this application. Optionally, for compatibility with the prior art, based on a feedback subframe that can transmit up to 4 TB of feedback information, the first number may be 4. When the binding group is divided according to the first number, it may be divided according to the transmission order of the TBs, that is, the chronological order of the subframes where the TBs are located, or may not be divided according to the transmission order of the TBs, for example, according to a preset division rule. The binding group division rule of the TB may be preset in the electronic device, or may be configured by the network side device, which is not limited in this application. Continuing the example in FIG. 3 , assuming that the first number is 4, and the bundling groups are divided according to the transmission order of TBs, see FIG. 5 : TB0 to TB3 transmitted on subframes 3 to 6 belong to the 0th bundling group TB4 to TB7 transmitted on subframes 7 to 10 belong to the first bundling group, and TB8 to TB11 transmitted on subframes 11 to 14 belong to the second bundling group.

The above-mentioned determination of the feedback subframe corresponding to each bundling group may be implemented in the following manner:

The feedback subframe corresponding to the 0th bundling group may be: max{n ₀ +1,(n _L' +2)}, where n ₀ is the subframe where the last TB of the 1st bundling group is located, and l is a preset value, for example, l may be 4, and n _L' is the subframe where the last TB of the feedback group is located. Continuing the example shown in FIG. 5 , n ₀ is the No. 6 subframe, l is 4, and n _L' is the No. 14 subframe, then, the feedback subframe corresponding to the 0th bundling group may be: max{6+4 ,(14+2)}=16, that is, the 16th subframe.

The feedback subframe corresponding to the bth bundling group may be: max{n _b +l,s _b-1 +N _b-1 }, where n _b is the subframe where the last TB of the bth bundling group is located, and s _b-1 is the feedback subframe corresponding to the b-1th bundling group, N _b-1 is the number of times the feedback information of the b-1th bundling group is repeatedly transmitted, and b is a natural number. Continuing the example shown in Figure 5, if b=1, n _b is the subframe where the last TB of the first bundling group is located, that is, the 10th subframe, and s _b-1 is the corresponding subframe of the 0th bundling group The feedback subframe of , that is, the 16th subframe, in FIG. 5 N _b-1 is 1, then the feedback subframe corresponding to the first bundling group may be max{10+4,16+1}=17 , that is, the No. 17 subframe; the same method can determine that the feedback subframe corresponding to the second bundling group is the No. 18 subframe.

After that, in step 403, the electronic device can transmit the feedback information of the TB in the 0th bonding group on the 16th subframe, transmit the feedback information of the TB in the 1st bonding group on the 17th subframe, and in the 18th The feedback information of the TB in the second bonding group is transmitted on the subframe No.

In the method shown in FIG. 4 , the DCI received by the electronic device carries the feedback group information, and the electronic device determines the feedback group according to the feedback group information in the received DCI, and then determines the feedback subframe corresponding to the feedback group. The feedback information of the TBs in the feedback group is transmitted on the feedback subframe, thereby realizing the transmission of the feedback information for the TBs by the electronic device, thereby making it possible to increase the data transmission rate in the multi-TB scheduling mode.

Different from carrying the feedback group information in the DCI in the method shown in FIG. 4 , in another embodiment of the present application, the DCI does not need to carry the feedback group information. This embodiment, as shown in FIG. 6 , may include:

Step 601: The electronic device receives the first DCI and the second DCI.

For the implementation of step 601, reference may be made to the description of step 401, which is not repeated here.

Step 602: The electronic device determines that the TB scheduled by the first DCI and the TB scheduled by the second DCI are consecutive;

Wherein, the DCI also carries: scheduling delay information and the number of TBs scheduled by the DCI, then according to the subframes that receive the DCI, the scheduling delay information, and the number of TBs, the electronic device can calculate the subframe where the TBs scheduled by the DCI are located, That is, the network side device transmits the subframe of the TB scheduled by the DCI.

This step may include: the electronic device determines that the difference between the subframe where the last TB scheduled by the first DCI is located and the subframe where the first TB scheduled by the second DCI is located is less than a preset second value.

The specific value of the second numerical value is not limited in this application. Optionally, the second value is less than or equal to 3. For example, if the second value is equal to 3, the subframe where the last TB scheduled by the first DCI is located is assumed to be the nth subframe, and the first subframe scheduled by the second DCI is assumed to be the nth subframe. The subframe where the TB is located may be the n+1 th subframe, or the n+2 th subframe, or the n+3 th subframe.

Step 603: The electronic device uses the TB scheduled by the first DCI and the TB scheduled by the second DCI as a feedback group, and determines a feedback subframe corresponding to the feedback group.

For the implementation of step 601, reference may be made to the description of step 402, which is not repeated here.

Step 604: The electronic device transmits the feedback information of the TBs in the feedback group on the determined feedback subframe.

For the implementation of step 604, reference may be made to the description of step 403, which is not repeated here.

In the method shown in FIG. 6 , the electronic device determines that the first DCI-scheduled TB and the second DCI-scheduled TB are consecutive, and uses the first DCI-scheduled TB and the second DCI-scheduled TB as a feedback group, and determines the corresponding TB of the feedback group. In the feedback subframe, the feedback information of the TB in the feedback group is transmitted on the determined feedback subframe, thereby realizing the transmission of the feedback information for the TB by the electronic device, thus making it possible to increase the data transmission rate in the multi-TB scheduling mode.

It can be understood that, some or all of the steps or operations in the foregoing embodiments are only examples, and other operations or variations of various operations may also be performed in the embodiments of the present application. Furthermore, the various steps may be performed in a different order presented in the above-described embodiments, and may not perform all operations in the above-described embodiments.

FIG. 7 is a structural diagram of an embodiment of a data transmission apparatus of the present application. The apparatus can be applied to electronic equipment, and the apparatus 70 can include:

a receiving unit 71, configured to receive a first DCI and a second DCI, where both the first DCI and the second DCI include feedback group information;

A determining unit 72, configured to use the TB scheduled by the first DCI and the TB scheduled by the second DCI as a feedback group if the feedback group information of the first DCI is consistent with the feedback group information of the second DCI , determining the feedback subframe corresponding to the feedback group; the feedback subframe corresponding to the feedback group is used to transmit the feedback information of the TB in the feedback group;

A sending unit 73, configured to transmit the feedback information of the TBs in the feedback group on the determined feedback subframe.

Optionally, the determining unit 72 may be specifically configured to: determine the bundling group to which the TB belongs in the feedback group, and determine the feedback subframe corresponding to the bundling group;

The sending unit 73 may be specifically configured to: transmit the feedback information of the TBs in the bonding group corresponding to the feedback subframe on the determined feedback subframe.

Optionally, the determining unit 72 may be specifically configured to: divide the TBs in the feedback group according to a preset first number to obtain several binding groups.

Optionally, the determining unit 72 may be specifically configured to: the position of the feedback subframe corresponding to the 0th bundling group is max{n ₀ +4, (n _L' +2)}, where n ₀ is the 0th bundling group The subframe where the last TB of the group is located, n _L' is the subframe where the last TB in the feedback group is located; the position of the feedback subframe corresponding to the bth bundling group is max{n _b +4,s _b-1 +N _b-1 }, where n _b is the subframe where the last TB of the b-th bundling group is located, s _b-1 is the feedback subframe corresponding to the b-1 th bundling group, and N _b-1 is the b-th bundling group - The number of times the feedback information of a bonding group is repeatedly transmitted.

FIG. 8 is a structural diagram of an embodiment of a data transmission apparatus of the present application. The apparatus can be applied to electronic equipment. The apparatus 80 may include:

a receiving unit 81, configured to receive the first DCI and the second DCI;

a first determining unit 82, configured to determine that the TB scheduled by the first DCI and the TB scheduled by the second DCI are consecutive;

A second determining unit 83, configured to use the TB scheduled by the first DCI and the TB scheduled by the second DCI as a feedback group, and determine a feedback subframe corresponding to the feedback group;

A sending unit 84, configured to transmit the feedback information of the TBs in the feedback group on the determined feedback subframe.

Optionally, the second determining unit 83 may be specifically configured to: determine the bundling group to which the TB belongs in the feedback group, and determine the feedback subframe corresponding to the bundling group;

The sending unit 84 may be specifically configured to: transmit the feedback information of the TBs in the bonding group corresponding to the feedback subframe on the determined feedback subframe.

Optionally, the second determining unit 83 may be specifically configured to: divide the TBs in the feedback group according to a preset first number to obtain several binding groups.

Optionally, the second determining unit 83 may be specifically configured to: the position of the feedback subframe corresponding to the 0th bundling group is max{n ₀ +4, (n _L' +2)}, where n ₀ is the 0th The subframe where the last TB of each bundling group is located, n _L' is the subframe where the last TB in the feedback group is located; the position of the feedback subframe corresponding to the bth bundling group is max{n _b +4,s _b-1 +N _b-1 }, where n _b is the subframe where the last TB of the b th bundling group is located, s _b-1 is the feedback subframe corresponding to the b-1 th bundling group, and N _b-1 is the The number of times the feedback information of the b-1th bonding group is repeatedly transmitted.

Optionally, the first determining unit 82 may be specifically configured to: determine that the difference between the subframe where the last TB scheduled by the first DCI is located and the subframe where the first TB scheduled by the second DCI is located is less than a predetermined value. Set the second value.

The apparatuses provided by the embodiments shown in FIGS. 7 to 8 can be used to implement the technical solutions of the method embodiments shown in FIGS. 4 to 6 of the present application, and the implementation principles and technical effects may further refer to the relevant descriptions in the method embodiments.

It should be understood that the division of each unit of the apparatus shown in FIG. 7 to FIG. 8 is only a division of logical functions, and may be fully or partially integrated into a physical entity in actual implementation, or may be physically separated. And these units can all be realized in the form of software calling through processing elements; also can all be realized in the form of hardware; some units can also be realized in the form of calling software through processing elements, and some units can be realized in the form of hardware. For example, the first receiving unit may be a separately established processing element, or may be integrated into a certain chip of the electronic device. The implementation of other units is similar. In addition, all or part of these units can be integrated together, and can also be implemented independently. For example, the above-mentioned information transmission device may be a chip or a chip module, or the above-mentioned data transmission device may be a chip or a part of a chip module. In the implementation process, each step of the above-mentioned method or each above-mentioned unit may be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software.

For example, the above units may be one or more integrated circuits configured to implement the above method, such as: one or more specific integrated circuits (Application Specific Integrated Circuit; hereinafter referred to as: ASIC), or, one or more microprocessors Digital Singnal Processor (hereinafter referred to as: DSP), or, one or more Field Programmable Gate Array (Field Programmable Gate Array; hereinafter referred to as: FPGA), etc. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (System-On-a-Chip; hereinafter referred to as: SOC).

The present application provides an electronic device, including: a processor and a transceiver; the processor and the transceiver cooperate to implement the methods provided by the embodiments shown in FIG. 4 to FIG. 6 of the present application.

The present application also provides an electronic device, the device includes a storage medium and a central processing unit, the storage medium may be a non-volatile storage medium, and a computer-executable program is stored in the storage medium, and the central processing unit is connected to the central processing unit. The non-volatile storage medium is connected, and the computer-executable program is executed to implement the method provided by the embodiments shown in FIG. 4 to FIG. 6 of the present application.

Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when it runs on a computer, causes the computer to execute the programs provided by the embodiments shown in FIG. 4 to FIG. 6 of the present application. method.

Embodiments of the present application further provide a computer program product, where the computer program product includes a computer program that, when running on a computer, enables the computer to execute the methods provided by the embodiments shown in FIGS. 4 to 6 of the present application.

In the embodiments of the present application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or", which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A and/or B, which can indicate the existence of A alone, the existence of A and B at the same time, and the existence of B alone. where A and B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, where a, b, c may be single, or Can be multiple.

Those of ordinary skill in the art can realize that the units and algorithm steps described in the embodiments disclosed herein can be implemented by a combination of electronic hardware, computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution, and the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (Read-Only Memory; hereinafter referred to as: ROM), Random Access Memory (Random Access Memory; hereinafter referred to as: RAM), magnetic disk or optical disk and other various A medium on which program code can be stored.

The above are only specific embodiments of the present application. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A data transmission method, comprising:

receiving first downlink control information and second downlink control information, where both the first downlink control information and the second downlink control information include feedback group information;

If the feedback group information of the first downlink control information is consistent with the feedback group information of the second downlink control information, the transport block scheduled by the first downlink control information and the The transport block is used as a feedback group, and the feedback subframe corresponding to the feedback group is determined; the feedback subframe corresponding to the feedback group is used to transmit feedback information of the transport block in the feedback group;

The feedback information of the transport blocks in the feedback group is transmitted on the determined feedback subframe.
The method according to claim 1, wherein the determining the feedback subframe corresponding to the feedback group comprises:

determining the bundling group to which the transport block in the feedback group belongs, and determining the feedback subframe corresponding to the bundling group;

The transmitting the feedback information of the transport blocks in the feedback group on the determined feedback subframe includes:

The feedback information of the transport block in the bundling group corresponding to the feedback subframe is transmitted on the determined feedback subframe.
The method according to claim 2, wherein the determining the binding group to which the transport block in the feedback group belongs comprises:

The transport blocks in the feedback group are divided according to a preset first quantity to obtain several binding groups.
The method according to claim 2 or 3, wherein the determining the feedback subframe corresponding to the bundling group comprises:

The feedback subframe position corresponding to the 0th bundling group is max{n 0 +4,(n L' +2)}, where n 0 is the subframe where the last transport block of the 0th bundling group is located, and n L' is the subframe where the last TB in the feedback group is located;

The position of the feedback subframe corresponding to the bth bundling group is max{n b +4,s b-1 +N b-1 }, where n b is the subframe where the last transport block of the bth bundling group is located , s b-1 is the feedback subframe corresponding to the b-1 th bundling group, and N b-1 is the number of times the feedback information of the b-1 th bundling group is repeatedly transmitted.
A data transmission method, comprising:

receiving the first downlink control information and the second downlink control information;

determining that the transport block scheduled by the first downlink control information and the transport block scheduled by the second downlink control information are consecutive;

Taking the transport block scheduled by the first downlink control information and the position scheduled by the second downlink control information as a feedback group, and determining a feedback subframe corresponding to the feedback group;

The feedback information of the transport blocks in the feedback group is transmitted on the determined feedback subframe.
The method according to claim 5, wherein the determining the feedback subframe corresponding to the feedback group comprises:

determining the bundling group to which the transport block in the feedback group belongs, and determining the feedback subframe corresponding to the bundling group;

The transmitting, on the determined feedback subframe, the feedback information of the transport blocks in the feedback group, includes:

The feedback information of the transport block in the bundling group corresponding to the feedback subframe is transmitted on the determined feedback subframe.
The method according to claim 6, wherein the determining the binding group to which the transport block in the feedback group belongs, comprises:

The transport blocks in the feedback group are divided according to a preset first quantity to obtain several binding groups.
The method according to claim 6 or 7, wherein the determining the feedback subframe corresponding to the bundling group comprises:

The feedback subframe position corresponding to the 0th bundling group is max{n 0 +4,(n L' +2)}, where n 0 is the subframe where the last transport block of the 0th bundling group is located, and n L' is the subframe where the last transport block in the feedback group is located;

The feedback subframe corresponding to the bth bundling group is max{n b +4,s b-1 +N b-1 }, where n b is the subframe where the last transport block of the bth bundling group is located, s b-1 is the feedback subframe corresponding to the b-1 th bundling group, and N b-1 is the number of times the feedback information of the b-1 th bundling group is repeatedly transmitted.
The method according to any one of claims 5 to 8, wherein the determining that the transport block scheduled by the first downlink control information and the transport block scheduled by the second downlink control information are consecutive comprises:

It is determined that the difference between the subframe where the last transport block scheduled by the first downlink control information is located and the subframe where the first transport block scheduled by the second downlink control information is located is less than a preset second value.
A data transmission device, comprising:

a receiving unit, configured to receive first downlink control information and second downlink control information, wherein both the first downlink control information and the second downlink control information include feedback group information;

a determining unit, configured to, if the feedback group information of the first downlink control information and the feedback group information of the second downlink control information are consistent, determine the transport block scheduled by the first downlink control information and the second downlink control information The transmission block scheduled by the downlink control information is used as a feedback group, and the feedback subframe corresponding to the feedback group is determined; the feedback subframe corresponding to the feedback group is used to transmit the feedback information of the transmission block in the feedback group;

A sending unit, configured to transmit the feedback information of the transport blocks in the feedback group on the determined feedback subframe.
A data transmission device, comprising:

a receiving unit, configured to receive the first downlink control information and the second downlink control information;

a first determining unit, configured to determine that the transport block scheduled by the first downlink control information and the transport block scheduled by the second downlink control information are consecutive;

a second determining unit, configured to use the transport block scheduled by the first downlink control information and the position scheduled by the second downlink control information as a feedback group, and determine a feedback subframe corresponding to the feedback group;

A sending unit, configured to transmit the feedback information of the transport blocks in the feedback group on the determined feedback subframe.
An electronic device, comprising:

a transceiver, configured to receive first downlink control information and second downlink control information, where both the first downlink control information and the second downlink control information include feedback group information

a processor, configured to, if the feedback group information of the first downlink control information and the feedback group information of the second downlink control information are consistent, compare the transport block scheduled by the first downlink control information with the second downlink control information The transmission block scheduled by the downlink control information is used as a feedback group, and the feedback subframe corresponding to the feedback group is determined; the feedback subframe corresponding to the feedback group is used to transmit the feedback information of the transmission block in the feedback group;

The transceiver is further configured to transmit the feedback information of the transport blocks in the feedback group on the determined feedback subframe.
An electronic device, comprising:

a transceiver, configured to receive the first downlink control information and the second downlink control information;

a processor, configured to determine that the transport block scheduled by the first downlink control information and the transport block scheduled by the second downlink control information are consecutive; and the transport block scheduled by the first downlink control information and the second The location of the downlink control information scheduling is used as a feedback group, and the feedback subframe corresponding to the feedback group is determined;

The transceiver is further configured to transmit the feedback information of the transport blocks in the feedback group on the determined feedback subframe.
A computer-readable storage medium, characterized in that, a computer program is stored in the computer-readable storage medium, and when it runs on a computer, the computer executes the method of any one of claims 1 to 9.