Method and apparatus for transmission and reception of data and control information

The method for determining HARQ-ACK information bits in 5G wireless communication systems addresses the challenge of managing HARQ-ACK feedback across multiple PDCCH and serving cells by using specific starting symbol conditions, resulting in enhanced efficiency and accuracy of data acknowledgment.

WO2025071139A1 Publication Date: 2025-04-03SAMSUNG ELECTRONICS CO LTD
2 Cites 0 Cited by

Patent Information

Application Number
PCT/KR2024/014333
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-13
Filing Date
2024-09-24
Publication Date
2025-04-03

AI Technical Summary

Technical Problem

Current 5G wireless communication systems face challenges in efficiently transmitting and receiving data and control information, particularly in managing hybrid automatic repeat request-acknowledgement (HARQ-ACK) information bits across multiple physical downlink control channels (PDCCH) and serving cells.

Method used

A method is introduced where a terminal determines HARQ-ACK information bits by identifying a set of starting symbols for PDCCH monitoring occasions and serving cells. The method generates HARQ-ACK information bits if a predefined condition is met, specifically when a second starting symbol equals the first starting symbol, indicating a PDSCH reception scheduled by a downlink control information (DCI) format.

Benefits of technology

This approach enhances the efficiency of HARQ-ACK feedback in 5G systems, allowing for accurate and timely acknowledgment of data receptions across multiple serving cells and PDCCH monitoring occasions, thereby improving overall system performance.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method and an apparatus for transmission and reception of data and control information are provided. The method includes: determining HARQ-ACK information bits, including: determining a set of first starting symbols for any PDCCH monitoring occasion and any serving cell, where the first starting symbols are starting symbols of candidate PDSCH receptions for the PDCCH monitoring occasion and the serving cell, and generating the HARQ-ACK information bits in case that a first starting symbol in the set of first starting symbols satisfies a first predefined condition; and transmitting the determined HARQ-ACK information bits, where the first predefined condition includes that a second starting symbol is equal to the first starting symbol, wherein the second starting symbol is a starting symbol of a PDSCH reception scheduled by a DCI format, and wherein generating the HARQ-ACK information bits includes generating a HARQ-ACK information bit for a transport block or a code block group of the PDSCH reception scheduled by the DCI format.
Need to check novelty before this filing date? Find Prior Art