Uplink Control Information Transmission on PUSCH Without Data
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting and receiving uplink control information between terminals and base stations, particularly in next-generation systems requiring enhanced mobile broadband, massive machine-type communications, and ultra-reliable low-latency communications, where existing methods struggle to effectively manage and prioritize acknowledgement and channel state information on physical uplink shared channels.
Innovation Solution
A method is introduced where scaling information is used to determine the number of coded modulation symbols for acknowledgement and channel state information, allowing for efficient transmission and reception of uplink control information on physical uplink shared channels without uplink shared channels, by subtracting the number of coded modulation symbols for channel state information from the total available resource elements, ensuring proper configuration and prioritization of acknowledgement and channel state information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If scaling information is used to determine the number of coded modulation symbols for acknowledgement information, then the base station can control the maximum number of symbols for acknowledgement information, but the number of symbols for channel state information must be determined by subtraction from total resource elements
Solution Approach 1:
The patent segments the determination process of coded modulation symbols into two distinct parts: first determining the number of symbols for acknowledgement information based on scaling information, then determining the number of symbols for channel state information by subtracting from total resource elements. This segmentation allows independent control of each information type while maintaining overall resource management.
Solution Approach 2:
The base station performs preliminary action by providing scaling information in advance through higher layer signaling. This allows the terminal to pre-determine the number of coded modulation symbols for acknowledgement information before actual transmission, enabling efficient resource allocation and reducing real-time computation complexity.
2Productivity
If the number of coded modulation symbols for acknowledgement information is determined based on scaling information, then resource allocation becomes more efficient, but the method requires separate determination processes for different information types
Solution Approach 1:
The patent divides the symbol determination process into separate stages: acknowledgement information symbols are determined first using scaling information, then channel state information symbols are determined by subtracting from the total available resource elements. This segmented approach improves efficiency by allowing independent optimization of each information type while maintaining clear procedural boundaries.
Solution Approach 2:
The base station provides scaling information in advance through higher layer signaling, enabling the terminal to pre-determine the allocation for acknowledgement information. This preliminary action simplifies the overall process by establishing a fixed reference point before the actual transmission resource allocation occurs.
Data Source
AI summary
Disclosed herein are a method for transmitting and receiving uplink control information between a terminal and a base station in a wireless communication system and devices supporting the same. Particularly, disclosed herein are a method for transmitting and receiving uplink control information between a terminal and a base station on a physical uplink shared channel (PUSCH) without data (e.g., UL-SCH) and operation of devices supporting the same.