Uplink Control Information Transmission via Offset-Based MCS
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Solution Overview
Problem
Current wireless communication technologies, such as LTE and NR, face challenges in efficiently transmitting uplink control information due to the reliance on a common modulation and coding scheme with payload data, leading to potential errors and inefficient resource utilization.
Innovation Solution
A method where user equipment determines a second modulation and coding scheme for uplink control information based on an offset value from a first modulation and coding scheme for payload data, allowing for differentiated transmission and potentially segmenting the control information when its size meets a threshold, thereby improving reliability and resource efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a common modulation and coding scheme is used for both payload data and uplink control information, then device complexity is reduced, but transmission reliability of control information deteriorates
Solution Approach 1:
The patent segments the transmission by applying different modulation and coding schemes to different types of information. Specifically, it uses a first MCS for payload data and a second MCS for uplink control information, thereby separating the treatment of these two information types to optimize reliability for control information while maintaining reasonable complexity.
Solution Approach 2:
The patent applies local quality by tailoring the modulation and coding scheme specifically for uplink control information. By determining a second MCS based on an offset value from the first MCS, the system optimizes the transmission parameters locally for control information to ensure higher reliability where it is most needed.
2Ease of operation
If a common modulation and coding scheme is used for payload data and control information, then ease of operation is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent introduces dynamic adjustment by determining the second MCS based on an offset value from the first MCS. This allows the system to adaptively optimize resource allocation for control information based on current channel conditions and requirements, thereby improving resource utilization efficiency while maintaining operational simplicity through the offset-based approach.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of an offset value from a first modulation and coding scheme relating to a first code rate for a payload data transmission. The UE may determine, for a transmission of uplink control information, a second modulation and coding scheme, relating to a second code rate, that is different from the first modulation and coding scheme based at least in part on the offset value. The UE may transmit the uplink control information using the second modulation and coding scheme based at least in part on determining the second modulation and coding scheme. In some aspects, a UE may segment uplink control information. Numerous other aspects are provided.