EP-4740357-A1 - METHOD, APPARATUS AND SYSTEM FOR DATA TRANSMISSION, REPETITION, AND FEEDBACK

Abstract

A method is provided. The method includes: sending first information to a first terminal device, the first information indicate one or more feedback opportunities of feedback from the first terminal device, and each feedback opportunity corresponds to a set of bits of a code block (CB); sending one or more sets of bits of a first code block (CB) to the first terminal device; receiving feedback corresponding to the first codeword from the first terminal device, wherein the feedback is used for indicating whether the first codeword is decoded successfully; and stop sending the one or more sets of bits of the first codeword in a case where the first codeword is decoded successfully.

Inventors

• TONG, WEN
• MA, JIANGLEI
• ZHANG, Huazi

Assignees

• Huawei Technologies Co., Ltd.

Dates

Publication Date

20260513

Application Date

20240410

Claims (20)

1. A method for data transmission, comprising: sending first information to a first terminal device, wherein the first information indicates one or more feedback opportunities of feedback from the first terminal device, and each feedback opportunity corresponds to a set of bits of a codeword; sending one or more sets of bits of a first codeword to the first terminal device; receiving one or more feedbacks corresponding to the first codeword from the first terminal device at at least one of the one or more feedback opportunities, at least one of the one or more feedbacks for indicating the first codeword is decoded successfully; and terminating the sending the one or more sets of bits of the first codeword.
2. The method of claim 1, further comprising: sending one or more sets of bits of a second codeword after the terminating the sending the one or more sets of bits of the first codeword, wherein a starting position of the one or more sets of bits of the second codeword is based on the feedback corresponding to the first codeword.
3. The method of claim 1 or claim 2, further comprising: sending second information to the first terminal device, wherein the second information is for indicating at least one of: a length of the one or more sets of bits of the first codeword or a starting position of the one or more sets of bits of the first codeword on a time-frequency resource, wherein the length of the one or more sets of bits of the first codeword includes at least one of: a minimum transmission length of each of the one or more sets of bits of the first codeword, or a maximum total length of the one or more sets of bits of the first codeword.
4. The method of claim 3, wherein the length of the one or more sets of bits of the first codeword is determined based on at least one of: a large scale channel quality indicator (CQI) , a previous feedback, or a modulation and coding scheme (MCS) .
5. The method of claim 3, wherein the maximum total length is an integer multiple of the minimum transmission length.
6. The method of any of claims 1-5, wherein sending the one or more sets of bits of the first codeword to the first terminal device includes: sending the one or more sets of bits of the first codeword to the first terminal device on first frequency domain resources.
7. The method of claim 6, further comprising: sending third information to the first terminal device, wherein the third information includes an indication of the first frequency domain resources.
8. The method of claim 7, wherein the third information includes one or more BWP index (es) , one or more carrier index (es) , or both one or more BWP index (es) and one or more carrier index (es) .
9. The method of any one of claims 6-8, wherein the first frequency domain resources are obtained through carrier aggregation.
10. The method of any of claims 6-9, wherein receiving the feedback corresponding to the first codeword from the first terminal device includes: receiving the feedback corresponding to the first codeword from the first terminal device on second frequency domain resources.
11. The method of claim 10, wherein the first frequency domain resources and the second frequency domain resources are not overlapped.
12. The method of claim 11, wherein a duration of sending the one or more sets of bits on the first frequency domain resources is equal to a duration of a report window of the feedback on the second frequency domain resources.
13. The method of claim 11 or claim 12, further comprising: receiving feedback from one or more second terminal devices on the second frequency domain resources.
14. The method of claim 10, wherein the first frequency domain resources and the second frequency domain resources are at least partially overlapped.
15. The method of claim 14, wherein time domain resources for sending the one or more sets of bits of a first codeword and time domain resources for receiving feedback corresponding to the first codeword are at least partially overlapped.
16. The method of any of claims 1-15, further comprising: sending, to the first terminal device, an indication to enable the first terminal device to transmit one or more feedbacks at the at least one of the one or more feedback opportunities.
17. The method of any of claims 3-16, further comprising: terminating the sending the one or more sets of bits of the first codeword in a case where a total length of the one or more sets of bits of the first codeword that have been transmitted reaches the maximum total length.
18. The method of any one of claims 1 to 17, wherein the one or more feedback opportunities are periodic, and the one or more feedback opportunities are the same at each period.
19. The method of any one of claims 1 to 18, wherein the first information is carried in Radio Resource Control (RRC) signaling or Downlink Control Information (DCI) .
20. A method for data transmission, comprising: receiving first information, wherein the first information indicates one or more feedback opportunities of feedback, and each feedback opportunity corresponds to a set of bits of a codeword; receiving one or more sets of bits of a first codeword; sending one or more feedbacks corresponding to the first codeword at at least one of the one or more feedback opportunities, at least one of the one or more feedbacks for indicating the first codeword is decoded successfully.

Description

METHOD, APPARATUS AND SYSTEM FOR DATA TRANSMISSION, REPETITION, AND FEEDBACK This application claims the priority of U.S. Provisional Patent Application No. 63/513,040, filed on July 11, 2023, the disclosure of which is incorporated, in its entirety, by this reference. TECHNICAL FIELD The present disclosure generally relates to the field of wireless communication, and in particular, to a method, apparatus and system for data transmission, and a computer readable storage medium. BACKGROUND Two trends are observed toward 6G, one is the ever-crowded spectrum in the sub-3 GHz bands, and the ever-increasing power saving demand. The past generations of mobile communications (4G and 5G) have adopted higher frequency spectrums for larger bandwidth. However, due to the channel propagation characteristics, the coverage is much smaller than lower-frequency bands, say, sub-3GHz. The power efficiency is also much lower. As a result, the operators are more willing to prioritize the use of lower bands for better coverage and power saving. As a result, the sub-3Ghz bands will become even more crowded. A key target of 6G is to reduce the global carbon footprint, at least does not increase the net energy consumption of 5G. However, denser deployment of wireless devices is expected, which naturally increases the inter-cell and inter-device interference. Reducing the transmit energy will have the double benefits of energy saving and interference mitigation, however at the cost of lower received signal-to-interference-plus-noise ratio (SINR) . This is a dilemma. With the current technology, there are several schemes to save transmission energy, improve spectral efficiency and enhance SINR. The first scheme is link adaptation and Hybrid automatic repeat request (hybrid ARQ or HARQ) , and the second scheme is power adaptation. The link adaptation and HARQ methods suffer from low spectrum efficiency and excessive latency. The power adaptation suffers from low spectrum efficiency and low power efficiency. This background information is provided to reveal information believed by the applicant to be of possible relevance to the present disclosure. No admission is necessarily intended, nor should be construed, that any of the preceding information constitutes prior art against the present disclosure. SUMMARY According to a first aspect, a method for data transmission is provided. The method may be implemented by a transmitting apparatus, or modules in the transmitting apparatus (such as circuits,  chips, or chip systems) , or logic nodes, logic modules, or software that may perform all or some of the functions of the transmitting apparatus. In an example where the method is applied to a transmitting apparatus, the method comprises: sending first information to a first terminal device, wherein the first information indicates one or more feedback opportunities of feedback from the first terminal device, and each feedback opportunity corresponds to a set of bits of a codeword; sending one or more sets of bits of a first codeword to the first terminal device; receiving one or more feedbacks corresponding to the first codeword from the first terminal device at at least one of the one or more feedback opportunities, at least one of the one or more feedbacks for indicating the first codeword is decoded successfully; and terminating the sending the one or more sets of bits of the first codeword. In such case, one or more sets of bits of a first codeword is transmitted such that the first codeword is transmitted in a fine-grained manner. Since each feedback opportunity corresponds to a set of bits of a codeword, the feedback opportunities are also fine-grained. The feedback time depends on when the codeword is decoded successfully rather than being fixed, thus providing more flexibility. In this way, the transmitting apparatus may receive the decoding result of the first codeword timely, and the feedback latency may be reduced. In addition, since the transmitting apparatus will terminate the sending the one or more sets of bits of the first codeword once the first codeword is decoded successfully, the energy consumption of the transmitting apparatus may be reduced. In some embodiments, the method further comprises: sending one or more sets of bits of a second codeword after the terminating the sending the one or more sets of bits of the first codeword, wherein a starting position of the one or more sets of bits of the second codeword is based on the feedback corresponding to the first codeword. In such case, the starting position of the one or more sets of bits of the second codeword is based on the feedback corresponding to the first codeword rather than being fixed, thus providing more flexibility for data transmission. In some embodiments, the method further comprises: sending second information to the first terminal device, wherein the second information is for indicating at least one of: a length of the one or more sets of bits o