CN-116368753-B - Acknowledgement information with reduced redundancy

CN116368753BCN 116368753 BCN116368753 BCN 116368753BCN-116368753-B

Abstract

Methods and apparatus for reducing redundant acknowledgement information. A method for a User Equipment (UE) to provide a plurality of first hybrid automatic repeat request acknowledgement (HARQ-ACK) information bits includes determining a number of second HARQ-ACK information bits based on a HARQ-ACK codebook, the number of second HARQ-ACK information bits being greater than a first predetermined number and less than a second predetermined number, the first predetermined number and the second predetermined number being consecutive in a set of predetermined numbers. The method further includes determining a number of first HARQ-ACK information bits by appending a number of bits to the second HARQ-ACK information bits, the number of bits being equal to a difference between the second predetermined number and the number of second HARQ-ACK information bits. The method also includes transmitting an uplink channel having a plurality of first HARQ-ACK information bits.

Inventors

Aris Papazak Lario

Assignees

三星电子株式会社

Dates

Publication Date: 20260512
Application Date: 20211008
Priority Date: 20210921

Claims (12)

1. A method performed by a user equipment, UE, in a wireless communication system, the method comprising: Receiving Downlink Control Information (DCI) format for scheduling a first Physical Uplink Control Channel (PUCCH) or a first Physical Uplink Shared Channel (PUSCH) from a base station; Determining a number of first HARQ-ACK information bits for a hybrid automatic repeat request acknowledgement, HARQ-ACK, codebook, wherein: the number of the first HARQ-ACK information bits is for data received from the base station, and The number of bits used for modulating the MCS offset value of the coding scheme is less than the difference between the maximum size of the HARQ-ACK codebook and the number of first HARQ-ACK information bits; determining a number of second HARQ-ACK information bits by adding the number of bits for the MCS offset value to the number of first HARQ-ACK information bits, and The first PUCCH or the first PUSCH having the number of the second HARQ-ACK information bits is transmitted to the base station.
2. The method of claim 1, wherein the first PUCCH transmission or the first PUSCH transmission is configured by higher layer signaling.
3. The method of claim 1, wherein the HARQ-ACK codebook is a type 2 HARQ-ACK codebook, and Wherein the type 2 HARQ-ACK codebook is determined based on the DCI format, the data, and the MCS offset value.
4. The method of claim 1, wherein all bits from the number of bits for the MCS offset value have zero values.
5. The method of claim 1, further comprising: Determining a priority value for the number of the second HARQ-ACK information bits, and Determining a number of cyclic redundancy check, CRC, bits for the number of second HARQ-ACK information bits, wherein: The number of CRC bits is a first number when the priority value is 0 and a second number when the priority value is 1.
6. The method of claim 1, wherein the first PUCCH having the number of second HARQ-ACK information bits is transmitted only when at least one of the number of second HARQ-ACK information bits has a value corresponding to an acknowledgement of agreement.
7. A method performed by a base station in a wireless communication system, the method comprising: Transmitting downlink control information DCI format for scheduling a first physical uplink control channel PUCCH or a first physical uplink shared channel PUSCH to a user equipment UE, and Receiving the first PUCCH or the first PUSCH having a number of first hybrid automatic repeat request acknowledgement HARQ-ACK information bits from the UE, Wherein the number of first HARQ-ACK information bits is based on appending a number of bits for a modulation and coding scheme MCS offset value to a number of second HARQ-ACK information bits, Wherein the number of second HARQ-ACK information bits is for a HARQ-ACK codebook, Wherein the number of the second HARQ-ACK information bits is for data received from the base station, and Wherein the number of bits for the MCS offset value is less than a difference between a maximum size of the HARQ-ACK codebook and the number of second HARQ-ACK information bits.
8. The method of claim 7, wherein the first PUCCH reception or the first PUSCH reception is configured by higher layer signaling.
9. The method of claim 7, wherein the HARQ-ACK codebook is a type 2 HARQ-ACK codebook, and Wherein the type 2 HARQ-ACK codebook is based on the DCI format, the data, and the MCS offset value.
10. The method of claim 7, wherein all bits from the last several bits for the MCS offset value have zero values.
11. A user equipment, UE, comprising: At least one transceiver; At least one processor communicatively coupled to the at least one transceiver, and At least one memory communicatively coupled to the at least one processor, storing instructions executable by the at least one processor, alone or in combination, to cause the UE to: A downlink control information DCI format scheduling a first physical uplink control channel PUCCH or a first physical uplink shared channel PUSCH is received from a base station, Determining a number of first HARQ-ACK information bits for a hybrid automatic repeat request acknowledgement, HARQ-ACK, codebook, wherein: the number of the first HARQ-ACK information bits is for data received from the base station, and The number of bits used for modulating the coding scheme MCS offset value is smaller than the difference between the maximum size of the HARQ-ACK codebook and the number of first HARQ-ACK information bits, Determining a number of second HARQ-ACK information bits by adding the number of bits for MCS offset value to the number of first HARQ-ACK information bits, and The first PUCCH or the first PUSCH having the number of the second HARQ-ACK information bits is transmitted to the base station.
12. A base station, comprising: At least one transceiver; At least one processor communicatively coupled to the at least one transceiver; at least one memory communicatively coupled to the at least one processor, storing instructions executable by the at least one processor, alone or in combination, to cause the base station to: Transmitting downlink control information DCI format for scheduling a first physical uplink control channel PUCCH or a first physical uplink shared channel PUSCH to a user equipment UE, and Receiving the first PUCCH or the first PUSCH having a number of first hybrid automatic repeat request acknowledgement HARQ-ACK information bits from the UE, Wherein the number of first HARQ-ACK information bits is based on appending a number of bits for a modulation and coding scheme MCS offset value to a number of second HARQ-ACK information bits, Wherein the number of second HARQ-ACK information bits is for a HARQ-ACK codebook, Wherein the number of the second HARQ-ACK information bits is for data received from the base station, and Wherein the number of bits for the MCS offset value is less than a difference between a maximum size of the HARQ-ACK codebook and the number of second HARQ-ACK information bits.

Description

Acknowledgement information with reduced redundancy Technical Field The present disclosure relates generally to wireless communication systems, and more particularly, to acknowledgement information with reduced redundancy. Background Fifth generation (5G) or New Radio (NR) mobile communications have recently grown with global technological activity from various candidate technologies in the industry and academia. Candidate enabling factors for 5G/NR mobile communications include a large number of antenna technologies from conventional cellular frequency bands to high frequencies to provide beamforming gain and support increased capacity, new waveforms flexibly adapted to various services/applications with different requirements (e.g., new Radio Access Technologies (RATs)), new multiple access schemes supporting a large number of connections, etc. Disclosure of Invention The present disclosure relates to acknowledgment information with reduced redundancy. In one embodiment, a method for a User Equipment (UE) to provide a number of first hybrid automatic repeat request acknowledgement (HARQ-ACK) information bits is provided. The method includes determining a number of second HARQ-ACK information bits based on the HARQ-ACK codebook. The number of second HARQ-ACK information bits is greater than the first predetermined number and less than the second predetermined number. The first and second predetermined numbers are consecutive in a set of predetermined numbers. The method further includes determining a number of first HARQ-ACK information bits by appending a number of bits to the second HARQ-ACK information bits. The number of bits is equal to a difference between the second predetermined number and the number of second HARQ-ACK information bits. The method also includes transmitting a first Physical Uplink Control Channel (PUCCH) or a first Physical Uplink Shared Channel (PUSCH) having a number of first HARQ-ACK information bits. In another embodiment, a UE is provided. The UE includes a processor configured to determine a number of second HARQ-ACK information bits based on a HARQ-ACK codebook. The number of second HARQ-ACK information bits is greater than the first predetermined number and less than the second predetermined number. The first and second predetermined numbers are consecutive in a set of predetermined numbers. The processor is further configured to determine a number of first HARQ-ACK information bits by appending a number of bits to the second HARQ-ACK information bits. The number of bits is equal to a difference between the second predetermined number and the number of second HARQ-ACK information bits. The UE also includes a transceiver operably coupled to the processor. The transceiver is configured to transmit a first PUCCH or a first PUSCH having a number of first HARQ-ACK information bits. In another embodiment, a base station is provided. The base station includes a transceiver configured to receive a first PUCCH or a first PUSCH having a number of first hybrid HARQ-ACK information bits. The base station also includes a processor operatively coupled to the transceiver. The processor is configured to determine a number of second hybrid HARQ-ACK information bits based on a HARQ-ACK codebook. The number of second HARQ-ACK information bits is greater than the first predetermined number and less than the second predetermined number. The first and second predetermined numbers are consecutive in a set of predetermined numbers. The processor is further configured to determine the number of second HARQ-ACK information bits by removing a last number of bits from the first HARQ-ACK information bits, wherein the number of last number of bits is equal to a difference between the second predetermined number and the number of second HARQ-ACK information bits. Other technical features may be readily apparent to one skilled in the art from the following figures, descriptions, and claims. Before proceeding with the following detailed description, it may be advantageous to set forth definitions of certain words and phrases used throughout this patent document. The term "couple" and its derivatives refer to any direct or indirect communication between two or more elements, whether or not those elements are in physical contact with one another. The terms "transmit," "receive," and "communicate," as well as derivatives thereof, include both direct and indirect communication. The terms "include" and "comprise," as well as derivatives thereof, mean inclusion without limitation. The term "or" is inclusive, meaning and/or. The phrase "associated with" and its derivatives are meant to include, be included within, be interconnected with, contain, be contained within, be connected to, be coupled to, be able to communicate with, be co-operative with, be interwoven with, be juxtaposed with, be proximate to, be bound to, be in-bound with, have the characteristics of, have the relationship of being in-and-the-other, a