US-12621844-B2 - Method and apparatus for determining transport block size

US12621844B2US 12621844 B2US12621844 B2US 12621844B2US-12621844-B2

Abstract

The present disclosure relates to a method for determining transport block size, which includes: receiving downlink control information sent by a base station, where the downlink control information is configured to schedule a plurality of transmission time intervals; determining, based on the downlink control information, a target resource corresponding to a target transmission time interval among the plurality of transmission time intervals; and determining a transport block size corresponding to each transmission time interval of the plurality of transmission time intervals based on the target resource and a modulation and coding scheme in the downlink control information.

Inventors

Ting Fu

Assignees

BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20210122

Claims (13)

1 . A method, comprising: receiving downlink control information sent by a base station, wherein the downlink control information is configured to schedule a plurality of transmission time intervals; determining, based on the downlink control information, a target resource corresponding to a target transmission time interval among the plurality of transmission time intervals; and determining a transport block size corresponding to each transmission time interval of the plurality of transmission time intervals based on the target resource and a modulation and coding scheme in the downlink control information, wherein the target transmission time interval is a transmission time interval among the plurality of transmission time intervals that is other than a first transmission time interval and a last transmission time interval of the plurality of transmission time intervals, and wherein the method further comprises: repeatedly transmitting a same redundancy version on the first transmission time interval and the last transmission time interval of the plurality of transmission time intervals.
2 . The method of claim 1 , wherein the target transmission time interval is a transmission time interval among the plurality of transmission time intervals that corresponds to a minimum amount of resources.
3 . The method of claim 1 , wherein the target transmission time interval is a transmission time interval among the plurality of transmission time intervals that corresponds to a maximum amount of resources.
4 . The method of claim 1 , wherein the same redundancy version is redundancy version 0 or redundancy version 3.
5 . The method of claim 1 , further comprising: transmitting coded bits of different parts of the same redundancy version on the first transmission time interval and the last transmission time interval of the plurality of transmission time intervals.
6 . The method of claim 1 , wherein the plurality of transmission time intervals are consecutive in a time domain.
7 . The method of claim 1 , wherein the plurality of transmission time intervals correspond to resources in an unlicensed frequency band.
8 . A communication device, comprising: a processor; and a memory for storing one or more instructions executable by the processor; wherein the processor is configured to: receive downlink control information sent by a base station, wherein the downlink control information is configured to schedule a plurality of transmission time intervals; determine, based on the downlink control information, a target resource corresponding to a target transmission time interval among the plurality of transmission time intervals; and determine a transport block size corresponding to each transmission time interval of the plurality of transmission time intervals based on the target resource and a modulation and coding scheme in the downlink control information, wherein the target transmission time interval is a transmission time interval among the plurality of transmission time intervals that is other than a first transmission time interval and a last transmission time interval of the plurality of transmission time intervals, and wherein the processor is further configured to: repeatedly transmit a same redundancy version on the first transmission time interval and the last transmission time interval of the plurality of transmission time intervals.
9 . A non-transitory computer-readable storage medium for storing a computer program, wherein the program, when executed by a processor, causes the processor to implement acts comprising: receiving downlink control information sent by a base station, wherein the downlink control information is configured to schedule a plurality of transmission time intervals; determining, based on the downlink control information, a target resource corresponding to a target transmission time interval among the plurality of transmission time intervals; and determining a transport block size corresponding to each transmission time interval of the plurality of transmission time intervals based on the target resource and a modulation and coding scheme in the downlink control information, wherein the target transmission time interval is a transmission time interval among the plurality of transmission time intervals that is other than a first transmission time interval and a last transmission time interval of the plurality of transmission time intervals, and wherein the acts further comprise: repeatedly transmitting a same redundancy version on the first transmission time interval and the last transmission time interval of the plurality of transmission time intervals.
10 . The communication device of claim 8 , wherein the target transmission time interval is a transmission time interval among the plurality of transmission time intervals that corresponds to a minimum amount of resources.
11 . The communication device of claim 8 , wherein the target transmission time interval is a transmission time interval among the plurality of transmission time intervals that corresponds to a maximum amount of resources.
12 . The communication device of claim 8 , wherein the same redundancy version is redundancy version 0 or redundancy version 3.
13 . The communication device of claim 8 , wherein the processor is further configured to: transmit coded bits of different parts of the same redundancy version on the first transmission time interval and the last transmission time interval of the plurality of transmission time intervals.

Description

CROSS-REFERENCE TO RELATED APPLICATION The present application is the U.S. National phase application of International Application No. PCT/CN2021/073212, filed on Jan. 22, 2021, the entire content of which is incorporated herein by reference for all purposes. TECHNICAL FIELD The present disclosure relates to the field of communication technology, and in particular, to a method and apparatus for determining a transport block size, a communication device, and a computer-readable storage medium. BACKGROUND As a Subcarrier Spacing (SCS) increases, a length of a slot decreases accordingly, e.g. for a SCS of 960 KHz, the slot is only 1/64 milliseconds. In order to accommodate this short slot, the current technique is to use multiple transmission time interval scheduling (multi-TTI scheduling), i.e., scheduling multiple transmission time intervals with a single piece of Downlink Control Information (DCI). Here, the transmission time interval corresponds to the slot, and resources allocated on each slot are the same. A terminal can determine, based on a code rate of Modulation and Coding Scheme (MCS) carried by the downlink control information and the resources allocated on the slot, a size of transport block(s) that can be encoded and transmitted on these resources. SUMMARY In view of the above, embodiments of the present disclosure propose a method and apparatus for determining a transport block size, a communication device, and a computer-readable storage medium, to solve the technical problems in the related art. According to a first aspect of the present disclosure, a method for determining a transport block size is proposed, the method including: receiving downlink control information sent by a base station, wherein the downlink control information is configured to schedule a plurality of transmission time intervals;determining, based on the downlink control information, a target resource corresponding to a target transmission time interval among the plurality of transmission time intervals; anddetermining a transport block size corresponding to each transmission time interval of the plurality of transmission time intervals based on the target resource and a modulation and coding scheme in the downlink control information. According to a second aspect of the present disclosure, a communication device is proposed, the communication device including: a processor; anda memory for storing one or more instructions executable by the processor;wherein the processor is configured to perform the method for determining the transport block size as described above. According to a third aspect of the present disclosure, a non-transitory computer-readable storage medium is proposed for storing a computer program, wherein the program, when executed by a processor, causes the processor to implement steps in the method for determining the transport block size as described above. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the accompanying drawings, which are to be used in the description of the embodiments, will be briefly described below. It is obvious that the accompanying drawings in the following description are only some of the embodiments of the present disclosure, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor. FIG. 1 is a schematic flowchart of a method for determining a transport block size illustrated according to embodiments of the present disclosure. FIG. 2 is a schematic flowchart of another method for determining a transport block size illustrated according to embodiments of the present disclosure. FIG. 3 is a schematic flowchart of yet another method for determining a transport block size illustrated according to embodiments of the present disclosure. FIG. 4 is a schematic block diagram of an apparatus for determining a transport block size illustrated according to embodiments of the present disclosure. FIG. 5 is a schematic block diagram of another apparatus for determining a transport block size illustrated according to embodiments of the present disclosure. FIG. 6 is a schematic block diagram of yet another apparatus for determining a transport block size illustrated according to embodiments of the present disclosure. FIG. 7 is a schematic block diagram of a device for determining a transport block size illustrated according to embodiments of the present disclosure. DETAILED DESCRIPTION The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. It is apparent that the described embodiments are only a part of the embodiments of the present disclosure, and not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art w