CN114765500A - Data transmission method, device and equipment - Google Patents

Data transmission method, device and equipment Download PDF

Info

Publication number
CN114765500A
CN114765500A CN202110055144.7A CN202110055144A CN114765500A CN 114765500 A CN114765500 A CN 114765500A CN 202110055144 A CN202110055144 A CN 202110055144A CN 114765500 A CN114765500 A CN 114765500A
Authority
CN
China
Prior art keywords
feedback
group
subframe
downlink control
control information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110055144.7A
Other languages
Chinese (zh)
Inventor
赵思聪
周化雨
雷珍珠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spreadtrum Communications Shanghai Co Ltd
Original Assignee
Spreadtrum Communications Shanghai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spreadtrum Communications Shanghai Co Ltd filed Critical Spreadtrum Communications Shanghai Co Ltd
Priority to CN202110055144.7A priority Critical patent/CN114765500A/en
Priority to PCT/CN2021/143061 priority patent/WO2022151986A1/en
Publication of CN114765500A publication Critical patent/CN114765500A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The application provides a data transmission method, a device and equipment, wherein the method comprises the following steps: receiving first DCI and second DCI, wherein the first DCI and the second DCI both comprise feedback group information; if the feedback group information of the first DCI is consistent with the feedback group information of the second DCI, taking the TB scheduled by the first DCI and the TB scheduled by the second DCI as a feedback group, and determining a feedback subframe corresponding to the feedback group; the feedback sub-frame corresponding to the feedback group is used for transmitting feedback information of the TB in the feedback group; and transmitting the feedback information of the TB in the feedback group on the determined feedback subframe. The method and the device can improve the downlink data transmission rate in a multi-transmission block scheduling mode.

Description

Data transmission method, device and equipment
Technical Field
The present application relates to the field of communications, and in particular, to a data transmission method, apparatus, and device.
Background
A scheduling method of multiple Transport Blocks (TBs), that is, a Downlink Control Information (DCI), may schedule multiple TBs at one time. In the protocol of the current version, when a TB is scheduled to transmit downlink data, at most one DCI is supported to schedule 8 TBs at one time, that is, at most 8 parallel Hybrid Automatic Repeat reQuest (HARQ) process numbers are used at a time. In addition, the multi-TB scheduling mode has a fixed scheduling delay, which is 2 subframes. In a Half-Duplex Frequency Division Duplex (HD-FDD) mode, in 2 subframes before downlink data transmission is switched to uplink data transmission, the network side device cannot send DCI, and in the first two subframes after uplink data transmission is switched to downlink data transmission, the network side device cannot send TB, which are caused by the 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 multi-TB scheduling mode of the HD-FDD mode is relatively low at present.
Disclosure of Invention
The application provides a data transmission method, a device and equipment, which can improve the downlink data transmission rate in a multi-TB scheduling mode.
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, wherein the first downlink control information and the second downlink control information both comprise 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, taking a Transport Block (TB) scheduled by the first downlink control information and a transport block scheduled by the second downlink control information as a feedback group, and determining a feedback subframe corresponding to the feedback group; the feedback sub-frame corresponding to the feedback group is used for transmitting the feedback information of the transmission block in the feedback group;
transmitting feedback information of the transport blocks in the feedback group on the determined feedback subframe.
In the 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 taken as a feedback group, a feedback subframe corresponding to the feedback group is determined, and the feedback information of the TB in the feedback group is transmitted on the determined feedback subframe, so that the transmission of the feedback information of the TB is realized, and the improvement of the data transmission rate under a multi-TB scheduling mode becomes possible.
In a possible implementation manner, the determining a feedback subframe corresponding to the feedback group includes:
determining a binding group to which a transmission block in a feedback group belongs, and determining a feedback subframe corresponding to the binding group;
the transmitting feedback information of the transport blocks in the feedback group on the determined feedback subframe includes:
and transmitting the feedback information of the transmission blocks in the binding group corresponding to the feedback subframe on the determined feedback subframe.
In a possible implementation manner, the determining a bonding group to which a transport block in a feedback group belongs includes:
and dividing the transmission blocks in the feedback group according to a preset first number to obtain a plurality of binding groups.
In a possible implementation manner, the determining the feedback subframe corresponding to the bonding group includes:
the feedback subframe position corresponding to the 0 th binding group is max { n }0+4,(nL‘+2) }, in which n0Is the subframe where the last TB of the 0 th bonding group is located, nL‘The subframe of the last TB in the feedback group;
the feedback subframe position corresponding to the b-th binding group is max { n }b+4,sb-1+Nb-1In which n isbIs the subframe, s, where the last TB of the (b) th bonding group is locatedb-1Is a feedback subframe corresponding to the b-1 th bonding group, Nb-1Is the number of times the feedback information of the b-1 th bonding group is repeatedly transmitted.
In a second aspect, an embodiment of the present application provides a data transmission method, including:
receiving first downlink control information and 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 transmission 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;
and transmitting the feedback information of the transmission blocks in the feedback group on the determined feedback subframe.
In the method, if the first DCI scheduled TB and the second DCI scheduled TB are determined to be continuous, the first DCI scheduled TB and the second DCI scheduled TB are used as a feedback group, a feedback subframe corresponding to the feedback group is determined, and feedback information of the TB in the feedback group is transmitted on the determined feedback subframe, so that the transmission of the feedback information of the TB is realized, and the improvement of the data transmission rate under a multi-TB scheduling mode becomes possible.
In a possible implementation manner, the determining a feedback subframe corresponding to the feedback group includes:
determining a binding group to which a transmission block in a feedback group belongs, and determining a feedback subframe corresponding to the binding group;
the transmitting feedback information of the transport blocks in the feedback group on the determined feedback subframe includes:
and transmitting the feedback information of the transmission blocks in the binding group corresponding to the feedback subframe on the determined feedback subframe.
In a possible implementation manner, the determining a bonding group to which a transport block in a feedback group belongs includes:
and dividing the transmission blocks in the feedback group according to a preset first number to obtain a plurality of binding groups. In a possible implementation manner, the determining the feedback subframe corresponding to the bonding group includes:
the feedback subframe position corresponding to the 0 th binding group is max { n }0+4,(nL‘+2) }, where, n0Is the subframe where the last TB of the 0 th bonding group is located, nL‘The subframe of the last transmission block in the feedback group;
the feedback subframe corresponding to the b-th binding group is max { n }b+4,sb-1+Nb-1In which n isbIs the last transport block of the b-th bonding groupSubframe, sb-1Is a feedback subframe corresponding to the b-1 st bonding group, Nb-1Is the number of times the feedback information of the b-1 st bonding 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:
and determining that the difference value between the subframe of the last transmission block scheduled by the first downlink control information and the subframe of the first transmission block scheduled by the second downlink control information is smaller than a preset second value.
In a third aspect, an embodiment of the present application provides a data transmission apparatus, including:
a receiving unit, configured to receive first downlink control information and second downlink control information, where the first downlink control information and the second downlink control information both include feedback group information;
a determining unit, configured to determine a feedback subframe corresponding to a feedback group by using a transmission block scheduled by the first downlink control information and a transmission block scheduled by the second downlink control information as the feedback group if feedback group information of the first downlink control information and feedback group information of the second downlink control information are consistent; the feedback sub-frame corresponding to the feedback group is used for transmitting the feedback information of the transmission block in the feedback group;
and the sending unit is used for transmitting the feedback information of the transmission blocks in the feedback group on the determined feedback subframe.
In a fourth aspect, an embodiment of the present application provides a data transmission apparatus, including:
a receiving unit, configured to receive first downlink control information and 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 determine a feedback subframe corresponding to a feedback group by using the transport block scheduled by the first downlink control information and the position scheduled by the second downlink control information as the feedback group;
and the sending unit is used for transmitting the feedback information of the transmission blocks in the feedback group on the determined feedback subframe.
In a fifth aspect, an embodiment of the present application provides an electronic device, including:
a transceiver for receiving first downlink control information and second downlink control information, wherein the first downlink control information and the second downlink control information both include feedback group information
A processor, configured to determine a feedback subframe corresponding to a feedback group by using a transmission block scheduled by the first downlink control information and a transmission block scheduled by the second downlink control information as the feedback group if feedback group information of the first downlink control information is consistent with feedback group information of the second downlink control information; the feedback sub-frame corresponding to the feedback group is used for transmitting the feedback information of the transmission block in the feedback group;
the transceiver is further configured to: transmitting 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 for receiving first downlink control information and second downlink control information;
a processor configured to determine that a TB scheduled by the first downlink control information and a TB scheduled by the second downlink control information are consecutive; taking the transmission 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 transceiver is further configured to: transmitting feedback information of the transport blocks in the feedback group on the determined feedback subframe.
In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored, and when the computer program runs on a computer, the computer program causes the computer to execute the method of any one of the first aspect or the second aspect.
In an eighth aspect, the present application provides a computer program for performing 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 in part or in whole on a memory not packaged with the processor.
Drawings
FIG. 1 is a timing diagram illustrating a prior art data transmission sequence;
FIG. 2 is a timing diagram of a data transmission according to the present application;
FIG. 3 is a timing diagram illustrating another data transmission sequence according to the present application;
FIG. 4 is a flow chart of one embodiment of a data transmission method of the present application;
FIG. 5 is a schematic diagram of another data transmission timing sequence according to the present application;
FIG. 6 is a flow chart of another embodiment of a data transmission method of the present application;
FIG. 7 is a schematic structural diagram of an embodiment of a data transmission apparatus according to the present application;
fig. 8 is a schematic structural diagram of another embodiment of the data transmission device of the present application.
Detailed Description
The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.
At present, downlink data transmission in a multi-TB scheduling mode of the HD-FDD mode has a fixed scheduling delay and a limitation that one DCI schedules 8 TBs at most. Referring to fig. 1, a timing diagram of a multi-TB scheduling when a downlink data transmission rate is maximum in a multi-TB scheduling mode is provided. Specifically, if the network side device sends DCI to the electronic device through a 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 side device transmits the 8 TBs through a Physical Downlink Shared Channel (PDSCH) on subframes No. 3 to No. 10, that is, TB0 to TB7 in fig. 1, the electronic device receives the 8 TBs on subframes No. 3 to No. 10 indicated by the DCI, and after 1 up/down conversion subframe, sends Acknowledgement (ACK)/Negative Acknowledgement (NACK) feedback of the 8 TBs to the network side device on subframe No. 12 to No. 14, and then after 1 up/down conversion subframe, the network side device sends DCI on subframe No. 16, and so on to implement scheduling of the TB by the network side device, And transmitting downlink data between the network side equipment and the electronic equipment. It should be noted that subframe No. 11 and subframe No. 15 in fig. 1 are respectively a switching subframe from a downlink subframe to an uplink subframe, and a switching subframe from an uplink subframe to a downlink subframe, and do not perform data transmission.
However, in the multi-TB scheduling scheme shown in fig. 1, a maximum of 8 TBs are scheduled at a time by using DCI, and a minimum of 15 subframes are required to complete transmission and feedback of the 8 TBs, so that the maximum downlink data transmission rate is only (8 × 1000)/15-533.4 kbps. And if the number of the DCI TBs scheduled at one time is less than 8, the downlink data transmission rate is less than 533.4 kbps. However, in the current single TB scheduling mode, 14 HARQ processes are proposed, 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 resource waste caused by the fixed scheduling delay, for example, the subframe No. 1, the subframe No. 2, the subframe No. 16, the subframe No. 17, and the like shown in fig. 1, in an example, two scheduling delays, which are a first scheduling delay and a second scheduling delay, may be preset, and in consideration of compatibility, the first scheduling delay may be a fixed scheduling delay in the prior art, and is currently 2 subframes, and the second scheduling delay is set to: and sending a DCI before the downlink subframe is switched into the uplink subframe, wherein the DCI is used for enabling the subframe after the uplink subframe is switched into the downlink subframe to transmit a TB scheduled by the DCI. For example, taking fig. 1 as an example, DCI may be sent in any subframe of subframe 2 to subframe 10, so as to schedule subframe 16 and subframe 17 to transmit a TB, thereby reducing resource waste and improving a downlink data transmission rate, where the second scheduling delay may be set to a certain number of subframes in 6 to 10.
Optionally, the second scheduling delay may be 7 subframes, for example, as shown in fig. 2, the electronic device may receive DCI through the PDCCH in the subframe 9, where the DCI schedules 2 TBs, and the scheduling delay information may be the second scheduling delay, that is, 7 subframes, and the electronic device may determine the subframes for transmitting the 2 TBs as the subframes 16 and 17 according to the second scheduling delay information. At this time, the maximum downlink data transmission rate may be increased to (10 × 1000)/15 ═ 667 kbps.
To further increase the downlink data transmission rate, the number of consecutive TBs scheduled before one feedback may be increased. Currently, in case of no feedback information repetition transmission is considered, the number of subframes for transmitting feedback information of consecutive TBs is 3, and feedback information of 4 TBs can be transmitted at most per subframe, and thus, if compatibility with the related art is considered, the number of consecutive TBs scheduled before one feedback can be 12 at most. At this time, the maximum downlink data transmission rate may be increased to (12 × 1000)/17 to 706 kbps. For example, as shown in FIG. 3:
the network side equipment sends DCI to the electronic equipment on the subframe No. 1, the DCI scheduling time delay is 2 subframes, 8 TBs are scheduled, and the 8 scheduled TBs are transmitted on the subframe No. 3 to the subframe No. 10; the network side equipment sends DCI to the electronic equipment on the subframe No. 9, the scheduling time delay of the DCI is 2 subframes, 4 TBs are scheduled, and the 4 TBs are transmitted on the subframe No. 11 to 14; thus, the network side device can schedule 12 continuously transmitted TBs through 2 DCIs; the electronic device can transmit the feedback information of the 12 TBs to the network side device on the subframes No. 16 to No. 18; at this moment, the network side equipment completes one-time continuous TB scheduling, and the electronic equipment completes one-time feedback of received information aiming at the TB;
the network side equipment sends DCI to the electronic equipment on the subframe No. 13, the scheduling time delay of the DCI is 7 subframes, 4 TBs are scheduled, and the 4 TBs are transmitted on the subframe No. 20 to the subframe No. 23; the network side equipment sends DCI to the electronic equipment on the subframe No. 22, the scheduling time delay of the DCI is 2 subframes, 8 TBs are scheduled, and the 8 TBs are transmitted on the subframe No. 24 to the subframe No. 31; therefore, the network side equipment schedules 12 continuously transmitted TBs through 2 DCIs, and the electronic equipment can transmit the feedback information of the 12 TBs to the network side equipment on subframes No. 33 to No. 35; at this point, the network side device completes scheduling of the continuous TBs once, and the electronic device completes feedback of the received information for the TBs once.
For convenience of description, a subframe in which feedback information of the TB is transmitted is referred to as a feedback subframe, and for example, the subframe from 16 th to 18 th and the subframe from 33 th to 35 th may be referred to as a feedback subframe.
It should be noted that the above description and examples are only for the purpose of compatibility with the prior art, and the number of consecutive TBs is at most 12, which is not intended to limit the number of consecutive TBs scheduled by the present application. For example, in the case of not considering repeated transmission and transmitting 4 TBs at most in one subframe, since one DCI can schedule 8 TBs at most, the number of consecutive TBs scheduled by two DCIs can reach 16, and at this time, the number of feedback subframes can be increased from 3 to 4, and scheduling of one consecutive TB and feedback of reception information for the TBs can also be completed at one time.
Based on the above description, if the number of the consecutively scheduled TBs exceeds 8, feedback information of the TBs needs to be explicitly transmitted in which subframes. Therefore, how the electronic device completes transmission of feedback information of a TB scheduled by DCI based on the received DCI is a problem to be solved.
Therefore, the embodiment of the present application provides a data transmission method, which enables an electronic device to complete transmission of feedback information for TBs after the number of scheduled consecutive TBs exceeds 8, so that improvement of a data transmission rate in a multi-TB scheduling manner is possible.
The method and the device can be applied to various communication systems, such as a machine-type communication (MTC) system, a Long Term Evolution (LTE), a New Radio (NR) and the like. The electronic devices of the present application may include, but are not limited to: handheld devices, vehicle-mounted devices, wearable devices, and the like having wireless communication functions. The network side device of the present application may be a base station, and in different communication systems, implementation types of the base station may have differences, which is not limited in the present application.
Fig. 4 is a flowchart of an embodiment of a data transmission method according to the present application, and as shown in fig. 4, the method may include:
step 401: the electronic equipment receives the first DCI and the second DCI, wherein the first DCI and the second DCI both comprise feedback group information.
The first DCI and the second DCI are generally two adjacent DCIs in the DCI received by the electronic device.
The feedback group information is used to indicate a feedback group to which a scheduled TB in DCI belongs. The feedback group is a set of TBs, and feedback information of the TBs in the feedback group is transmitted on consecutive subframes. For example, in fig. 3, TB0 through TB11 transmitted on subframe No. 3 through subframe No. 14 form a feedback group, at this time, feedback group information included in DCI transmitted on subframe No. 1 is consistent with feedback group information included in DCI transmitted on subframe No. 9, feedback information of TBs in the feedback group is transmitted on subframe No. 16 through subframe No. 18, TB0 through TB11 transmitted on subframe No. 20 through subframe No. 32 also form a feedback group, at this time, feedback group information included in DCI transmitted on subframe No. 13 is consistent with feedback group information included in DCI transmitted on subframe No. 22, and feedback information of TBs in the feedback group is transmitted on subframe No. 34 through subframe No. 36; also, the two feedback groups are adjacent feedback groups.
Wherein the first DCI and the second DCI may be carried by the PDCCH.
In one possible implementation, bits may be newly added to the DCI as feedback group indication bits, and the feedback group information in the DCI is indicated by the feedback group indication bits. For example, in order to distinguish between two adjacent feedback groups, the feedback group information of the two adjacent feedback groups may be divided into a first group and a second group, that is, the feedback group information may include: the feedback group information indicating method comprises a first feedback group and a second feedback group, wherein the feedback group indicating bit is 1 bit, namely the indication of the feedback group information can be realized, when the feedback group indicating bit is 0, the first feedback group is represented, and when the feedback group indicating bit is 1, the second feedback group is represented. Continuing with the foregoing example, assuming that TBs 0-11 transmitted on subframe No. 3 to subframe No. 14 form a first feedback group, and TB 0-TB 11 transmitted on subframe No. 20 to subframe No. 32 form a second feedback group, the feedback group indication bits in the DCI transmitted on subframe No. 1 and subframe No. 9 are both 0, and the feedback group indication bits in the DCI transmitted on subframe No. 13 and subframe No. 22 are both 1.
Step 402: and if the feedback group information of the first DCI is consistent with the feedback group information of the second DCI, the electronic equipment takes 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.
The above TBs may be carried by PDSCH.
The feedback subframe corresponding to the feedback group is a subframe for transmitting feedback information of the TB in the feedback group.
If the compatibility with the prior art is considered, in the embodiment of the present application, one feedback group may include 12 TBs at most, that is, the first DCI and the second DCI may schedule 12 consecutive TBs at most.
Step 403: and the electronic equipment transmits the feedback information of the TB in the feedback group on the determined feedback subframe.
The feedback information of the TBs is used to indicate whether the TBs are correctly decoded, and the feedback information of each TB may be ACK or NACK.
Determining the feedback subframe corresponding to the feedback group in step 402 may include:
determining a binding group to which each TB belongs in a feedback group, and determining a feedback subframe corresponding to each binding group;
then, step 403 may include: and transmitting the feedback information of the TB in the binding group corresponding to the feedback subframe on the determined feedback subframe.
In a possible implementation manner, when determining a bonding group to which each TB in a feedback group belongs, the TBs in the feedback group may be divided according to a preset first number to obtain the bonding group. The value of the first number is not limited in this application, and optionally, in order to be compatible with the prior art, the first number may be 4 based on that one feedback subframe can transmit feedback information of 4 TBs at most. When the bonding group is divided according to the first number, the bonding group may be divided according to a transmission order of the TBs, that is, a time sequence of subframes where the TBs are located, or may not be divided according to the transmission order of the TBs, for example, divided according to a preset division rule, or the like. The TB binding group partition rule may be preset in the electronic device, or may be configured by the network side device, which is not limited in this application. Continuing with the example of fig. 3, assuming that the first number is 4, the bonding groups are divided in the transmission order of TBs, see fig. 5: the TBs 0-3 transmitted on subframe No. 3 to subframe No. 6 belong to the 0 th bonding group, the TBs 4-7 transmitted on subframe No. 7 to subframe No. 10 belong to the 1 st bonding group, and the TBs 8-11 transmitted on subframe No. 11 to subframe No. 14 belong to the 2 nd bonding group.
The determining of the feedback subframe corresponding to each bonding group may be implemented in the following manner:
the feedback subframe corresponding to the 0 th bonding group may be: max { n }0+l,(nL‘+2) }, in which n0For the subframe where the last TB of the 1 st bonding group is located, l is a preset value, for example, l may be 4, nL‘Is the subframe where the last TB of the feedback group is located. Continuing with the example shown in FIG. 5, n0Subframe number 6, l is 4, nL‘The number of subframes is 14, then, the feedback subframe corresponding to the 0 th bonding group may be: max {6+4, (14+2) } 16, i.e., subframe No. 16.
The feedback subframe corresponding to the b-th bonding group may be: max { n {b+l,sb-1+Nb-1}，nbIs the subframe, s, in which the last TB of the b-th bonding group is locatedb-1Is a feedback subframe corresponding to the b-1 th bonding group, Nb-1Is the number of times of repeated transmission of the feedback information of the (b-1) th bonding group, and b is a natural number. Continuing with the example shown in fig. 5, if b is 1, nbIs the subframe where the last TB of the 1 st bonding group is located, i.e. subframe No. 10, sb-1Is the feedback sub-frame corresponding to the 0 th binding group, i.e. sub-frame number 16, N in fig. 5b-1For 1, the feedback subframe corresponding to the 1 st bundling group may be max {10+4,16+1} ═ 17, that is, subframe number 17; the same method can determine that the feedback subframe corresponding to the 2 nd bonding group is 18 # subframe.
Thereafter, in step 403, the electronic device may transmit feedback information of the TB in the 0 th bonding group on the subframe No. 16, transmit feedback information of the TB in the 1 st bonding group on the subframe No. 17, and transmit feedback information of the TB in the 2 nd bonding group on the subframe No. 18.
In the method shown in fig. 4, the DCI received by the electronic device carries feedback group information, the electronic device determines a feedback group according to the feedback group information in the received DCI, and further determines a feedback subframe corresponding to the feedback group, and transmits feedback information of a TB in the feedback group on the determined feedback subframe, so that transmission of the feedback information of the TB by the electronic device is achieved, and improvement of a data transmission rate in a multi-TB scheduling mode is possible.
Unlike the method shown in fig. 4 in which feedback group information is carried in DCI, in another embodiment of the present application, the DCI does not need to carry the feedback group information, and this embodiment may include, as shown in fig. 6:
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 described herein again.
Step 602: the electronic equipment determines that the TB scheduled by the first DCI and the TB scheduled by the second DCI are continuous;
wherein, DCI also carries: the scheduling delay information and the number of the DCI-scheduled TBs are calculated, and the electronic device can calculate the subframe where the DCI-scheduled TB is located, that is, the subframe where the network-side device transmits the DCI-scheduled TB, according to the subframe where the DCI-scheduled TB is received, the scheduling delay information and the number of the TBs.
This step may include: and the electronic equipment determines that the difference value between the subframe where the last TB of the first DCI scheduling is located and the subframe where the first TB of the second DCI scheduling is located is smaller than a preset second numerical value.
The specific value of the second 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 in which the last TB of the first DCI schedule is located is assumed to be the nth subframe, and the subframe in which the first TB of the second DCI schedule is located may be the (n + 1) th subframe, or the (n +2) th subframe, or the (n + 3) th subframe.
Step 603: and the electronic equipment takes 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 described herein again.
Step 604: the electronic device transmits 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 described herein again.
In the method shown in fig. 6, the electronic device determines that the TB scheduled by the first DCI and the TB scheduled by the second DCI are consecutive, uses the TB scheduled by the first DCI and the TB scheduled by the second DCI as a feedback group, determines a feedback subframe corresponding to the feedback group, and transmits feedback information of the TB in the feedback group on the determined feedback subframe, thereby implementing transmission of the feedback information of the TB by the electronic device, and making it possible to improve a data transmission rate in a multi-TB scheduling manner.
It is to be understood that some or all of the steps or operations in the above embodiments are only examples, and other operations or variations of various operations may be performed by the embodiments of the present application. Further, the various steps may be performed in a different order presented in the above-described embodiments, and it is possible that not all of the operations in the above-described embodiments are performed.
Fig. 7 is a block diagram of an embodiment of a data transmission device, which can be applied to an electronic device, and the device 70 may include:
a receiving unit 71, configured to receive a first DCI and a second DCI, where the first DCI and the second DCI both include feedback group information;
a determining unit 72, configured to determine a feedback subframe corresponding to a feedback group, by using the TB scheduled by the first DCI and the TB scheduled by the second DCI as the feedback group, if the feedback group information of the first DCI is consistent with the feedback group information of the second DCI; the feedback sub-frame corresponding to the feedback group is used for transmitting feedback information of the TB in the feedback group;
a sending unit 73, configured to transmit feedback information of the TBs in the feedback group on the determined feedback subframe.
Optionally, the determining unit 72 may specifically be configured to: determining a binding group to which TB belongs in a feedback group, and determining a feedback subframe corresponding to the binding group;
the sending unit 73 may specifically be configured to: and transmitting the feedback information of the TB in the binding group corresponding to the feedback subframe on the determined feedback subframe.
Optionally, the determining unit 72 may specifically be configured to: and dividing the TBs in the feedback groups according to a preset first number to obtain a plurality of binding groups.
Optionally, the determining unit 72 may specifically be configured to: the feedback subframe position corresponding to the 0 th binding group is max { n }0+4,(nL‘+2) }, where, n0Is the subframe where the last TB of the 0 th bonding group is located, nL‘The subframe where the last TB in the feedback group is located; the feedback subframe position corresponding to the b-th binding group is max { n }b+4,sb-1+Nb-1In which n isbIs the subframe, s, in which the last TB of the b-th bonding group is locatedb-1Is a feedback subframe corresponding to the b-1 th bonding group, Nb-1Is the number of times the feedback information of the b-1 th bonding group is repeatedly transmitted.
Fig. 8 is a block diagram of an embodiment of a data transmission apparatus, which may be applied to an electronic device, where 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: determining a binding group to which a TB belongs in a feedback group, and determining a feedback subframe corresponding to the binding group;
the sending unit 84 may specifically be configured to: and transmitting the feedback information of the TB in the binding group corresponding to the feedback subframe on the determined feedback subframe.
Optionally, the second determining unit 83 may be specifically configured to: and dividing the TBs in the feedback group according to a preset first number to obtain a plurality of binding groups.
Optionally, the second determining unit 83 may be specifically configured to: the feedback subframe position corresponding to the 0 th binding group is max { n }0+4,(nL‘+2) }, in which n0Is the subframe where the last TB of the 0 th bonding group is located, nL‘The subframe of the last TB in the feedback group; the feedback subframe position corresponding to the b-th binding group is max { n }b+4,sb-1+Nb-1In which n isbIs the subframe, s, in which the last TB of the b-th bonding group is locatedb-1Is a feedback subframe corresponding to the b-1 th bonding group, Nb-1Is the number of times the feedback information of the b-1 th bonding group is repeatedly transmitted.
Optionally, the first determining unit 82 may specifically be configured to: and determining that the difference value between the subframe where the last TB of the first DCI scheduling is located and the subframe where the first TB of the second DCI scheduling is located is smaller than a preset second numerical value.
The embodiments shown in fig. 7 to 8 provide apparatuses that can be used to implement the technical solutions of the method embodiments shown in fig. 4 to 6 of the present application, and the implementation principles and technical effects thereof can be further referred to the related descriptions in the method embodiments.
It should be understood that the division of the units of the apparatuses shown in fig. 7 to 8 is merely a logical division, and the actual implementation may be wholly or partially integrated into one physical entity or may be physically separated. And these units can be implemented entirely in software, invoked by a processing element; or can be implemented in the form of hardware; part of the units can also be realized in the form of software called by a processing element, and part of the units can be realized in the form of hardware. For example, the first receiving unit may be a separate processing element, or may be integrated into a chip of the electronic device. The other units are implemented similarly. In addition, all or part of the units can be integrated together or can be independently realized. For example, the information transmission device may be a chip or a chip module, or the data transmission device may be a part of a chip or a chip module. In implementation, the steps of the method or the units above may be implemented by hardware integrated logic circuits in a processor element or instructions in software.
For example, the above units may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), one or more microprocessors (DSPs), one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, these units may be integrated together and implemented in the form of a System-On-a-Chip (SOC).
The application provides an electronic device, including: a processor and a transceiver; the processor and the transceiver cooperate to implement the method provided by the embodiments shown in fig. 4 to 6 of the present application.
The present application further provides an electronic device, where the device includes a storage medium and a central processing unit, where 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 non-volatile storage medium and executes the computer executable program to implement the methods provided in 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, in which a computer program is stored, and when the computer program runs on a computer, the computer is enabled to execute the method provided by the embodiments shown in fig. 4 to 6 of the present application.
Embodiments of the present application further provide a computer program product, which includes a computer program, and when the computer program runs on a computer, the computer executes the method provided in the embodiments shown in fig. 4 to 6 of the present application.
In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, and may mean that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and similar expressions refer to any combination of these items, including any combination of singular 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, wherein a, b and c can be single or multiple.
Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, any function, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present application, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions 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 (14)

1. A method of data transmission, comprising:
receiving first downlink control information and second downlink control information, wherein the first downlink control information and the second downlink control information both comprise 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, taking the transmission block scheduled by the first downlink control information and the transmission block scheduled by the second downlink control information as a feedback group, and determining a feedback subframe corresponding to the feedback group; the feedback sub-frame corresponding to the feedback group is used for transmitting the feedback information of the transmission block in the feedback group;
transmitting feedback information of the transport blocks in the feedback group on the determined feedback subframe.
2. The method of claim 1, wherein the determining the feedback subframe corresponding to the feedback group comprises:
determining a binding group to which a transmission block in a feedback group belongs, and determining a feedback subframe corresponding to the binding group;
the transmitting feedback information of the transport blocks in the feedback group on the determined feedback subframe includes:
and transmitting the feedback information of the transmission blocks in the binding group corresponding to the feedback subframe on the determined feedback subframe.
3. The method of claim 2, wherein the determining the bonding group to which the transport block belongs in the feedback group comprises:
and dividing the transmission blocks in the feedback group according to a preset first number to obtain a plurality of binding groups.
4. 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 0 th binding group is max { n }0+4,(nL‘+2) }, where, n0Is the subframe where the last transport block of the 0 th bonding group is located, nL‘The subframe where the last TB in the feedback group is located;
the feedback subframe position corresponding to the b-th binding group is max { n }b+4,sb-1+Nb-1In which n isbIs the subframe, s, in which the last transport block of the b-th bonding group is locatedb-1Is a feedback subframe corresponding to the b-1 th bonding group, Nb-1Is the number of times the feedback information of the b-1 th bonding group is repeatedly transmitted.
5. A method of data transmission, comprising:
receiving first downlink control information and second downlink control information;
determining that the transmission block scheduled by the first downlink control information is continuous with the transmission block scheduled by the second downlink control information;
taking the transmission 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;
transmitting feedback information of the transport blocks in the feedback group on the determined feedback subframe.
6. The method of claim 5, wherein the determining the feedback subframe corresponding to the feedback group comprises:
determining a binding group to which a transmission block in a feedback group belongs, and determining a feedback subframe corresponding to the binding group;
the transmitting feedback information of the transport blocks in the feedback group on the determined feedback subframe includes:
and transmitting the feedback information of the transmission blocks in the binding group corresponding to the feedback subframe on the determined feedback subframe.
7. The method of claim 6, wherein the determining the bundling group to which the transport block belongs in the feedback group comprises:
and dividing the transmission blocks in the feedback group according to a preset first number to obtain a plurality of binding groups.
8. The method of claim 6 or 7, wherein the determining the feedback subframe corresponding to the bundling group comprises:
the feedback subframe position corresponding to the 0 th binding group is max { n }0+4,(nL‘+2) }, in which n0Is the subframe where the last transport block of the 0 th bonding group is located, nL‘The subframe of the last transmission block in the feedback group;
the feedback sub-frame corresponding to the b-th binding group is max { n }b+4,sb-1+Nb-1In which n isbIs the subframe, s, in which the last transport block of the b-th bonding group is locatedb-1Is a feedback subframe corresponding to the b-1 th bonding group, Nb-1Is the number of times the feedback information of the b-1 th bonding group is repeatedly transmitted.
9. The method according to any of claims 5 to 8, wherein the determining that the first downlink control information scheduled transport block and the second downlink control information scheduled transport block are consecutive comprises:
and determining that the difference value between the subframe of the last transmission block scheduled by the first downlink control information and the subframe of the first transmission block scheduled by the second downlink control information is smaller than a preset second value.
10. A data transmission apparatus, comprising:
a receiving unit, configured to receive first downlink control information and second downlink control information, where the first downlink control information and the second downlink control information both include feedback group information;
a determining unit, configured to determine a feedback subframe corresponding to a feedback group by using a transmission block scheduled by the first downlink control information and a transmission block scheduled by the second downlink control information as the feedback group if feedback group information of the first downlink control information and feedback group information of the second downlink control information are consistent; the feedback sub-frame corresponding to the feedback group is used for transmitting 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.
11. A data transmission apparatus, comprising:
a receiving unit, configured to receive first downlink control information and second downlink control information;
a first determining unit, configured to determine that a transport block scheduled by the first downlink control information is consecutive to a transport block scheduled by the second downlink control information;
a second determining unit, configured to determine a feedback subframe corresponding to a feedback group by using the transport block scheduled by the first downlink control information and the position scheduled by the second downlink control information as 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.
12. An electronic device, comprising:
a transceiver for receiving first downlink control information and second downlink control information, wherein the first downlink control information and the second downlink control information both include feedback group information
A processor, configured to determine a feedback subframe corresponding to a feedback group by using a transmission block scheduled by the first downlink control information and a transmission block scheduled by the second downlink control information as the feedback group if feedback group information of the first downlink control information is consistent with feedback group information of the second downlink control information; the feedback sub-frame corresponding to the feedback group is used for transmitting the feedback information of the transmission block in the feedback group;
the transceiver is further configured to: transmitting feedback information of the transport blocks in the feedback group on the determined feedback subframe.
13. An electronic device, comprising:
a transceiver for receiving first downlink control information and second downlink control information;
a processor configured to determine that a transport block scheduled by the first downlink control information and a transport block scheduled by the second downlink control information are consecutive; taking the transmission 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 transceiver is further configured to: and transmitting the feedback information of the transmission blocks in the feedback group on the determined feedback subframe.
14. A computer-readable storage medium, in which a computer program is stored which, when run on a computer, causes the computer to carry out the method of any one of claims 1 to 9.
CN202110055144.7A 2021-01-15 2021-01-15 Data transmission method, device and equipment Pending CN114765500A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202110055144.7A CN114765500A (en) 2021-01-15 2021-01-15 Data transmission method, device and equipment
PCT/CN2021/143061 WO2022151986A1 (en) 2021-01-15 2021-12-30 Data transmission method and apparatus, and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110055144.7A CN114765500A (en) 2021-01-15 2021-01-15 Data transmission method, device and equipment

Publications (1)

Publication Number Publication Date
CN114765500A true CN114765500A (en) 2022-07-19

Family

ID=82364222

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110055144.7A Pending CN114765500A (en) 2021-01-15 2021-01-15 Data transmission method, device and equipment

Country Status (2)

Country Link
CN (1) CN114765500A (en)
WO (1) WO2022151986A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3566359A2 (en) * 2017-01-04 2019-11-13 IDAC Holdings, Inc. Receiver feedback in wireless systems
CN110830184A (en) * 2018-08-09 2020-02-21 北京三星通信技术研究有限公司 Block transmission method, downlink transmission method, NRS reception method, UE, base station, and medium
CN111034093A (en) * 2018-08-03 2020-04-17 联发科技股份有限公司 Group-based hybrid automatic repeat request acknowledgement feedback

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018145074A1 (en) * 2017-02-06 2018-08-09 Intel IP Corporation Hybrid automatic repeat request-acknowledgment bundling for communication systems
US20210298058A1 (en) * 2018-08-10 2021-09-23 Telefonaktiebolaget Lm Ericsson (Publ) One downlink control information, dci, for scheduling multiple transport blocks, tbs
CN113439399B (en) * 2019-02-15 2023-07-25 上海诺基亚贝尔股份有限公司 Radio link adaptation in wireless networks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3566359A2 (en) * 2017-01-04 2019-11-13 IDAC Holdings, Inc. Receiver feedback in wireless systems
CN111034093A (en) * 2018-08-03 2020-04-17 联发科技股份有限公司 Group-based hybrid automatic repeat request acknowledgement feedback
CN110830184A (en) * 2018-08-09 2020-02-21 北京三星通信技术研究有限公司 Block transmission method, downlink transmission method, NRS reception method, UE, base station, and medium

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ERICSSON: ""R1-2001055 Corrections for Multi-TB scheduling for LTE-MTC"", 3GPP TSG_RAN\\WG1_RL1, 15 February 2020 (2020-02-15), pages 2 *

Also Published As

Publication number Publication date
WO2022151986A1 (en) 2022-07-21

Similar Documents

Publication Publication Date Title
WO2019214468A1 (en) Method and apparatus for signal transmission, and terminal
WO2018059160A1 (en) Data transmission method and device
CN110034905A (en) Uplink information transmission and device
CN102143596B (en) Wireless resource scheduling method and wireless resource scheduling system
CN110278062A (en) Resource instruction determines method and device
CN105743619A (en) Hybrid automatic repeat request (HARQ) transmission method and apparatus
US11357032B2 (en) Control information transmission method, transmit end, and receive end
CN114208081A (en) Method and related apparatus for performing HARQ feedback for semi-persistent scheduling transmissions
CN112039639B (en) Feedback indication method and communication device
CN110100494B (en) Data transmission method and equipment
CN108370562A (en) A kind of cross-carrier dispatching method, feedback method and device
CN109152040A (en) Transmit method, terminal device and the network equipment of data
CN106465182B (en) Wireless communications method and wireless telecom equipment
CN108293245A (en) A kind of method, terminal device and the network equipment of data communication
CN108886704B (en) Data transmission method and device
EP3598709B1 (en) Acknowledgement information transmission method, terminal device, and network device
CN103580823B (en) Method for processing uplink HARQ feedback
CN108401291B (en) Method and device for data transmission
CN111526488B (en) Method and device for sending and receiving control information
CN110972325B (en) Data transmission method, equipment and device
CN109788562B (en) Transmission method of uplink information, first communication equipment and second communication equipment
CN111373807B (en) Data transmission method and device
CN114765500A (en) Data transmission method, device and equipment
WO2018028063A1 (en) Method, device and terminal, and storage medium for transmitting uplink control information
CN110475238B (en) Data transmission method and communication device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination