Uplink Control Multiplexing With Different MCS Modulation Orders
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently multiplexing uplink control messages with uplink data channels when using different modulation orders, leading to decreased transmission quality.
Innovation Solution
A method and apparatus for wireless communications that allow a user equipment (UE) to multiplex uplink control messages with uplink data channels using different modulation and coding schemes (MCS) based on modulation order adjustments and MCS tables, facilitated by downlink control messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uplink control messages are multiplexed with uplink data channels using different modulation orders, then spectral efficiency is improved, but transmission quality deteriorates
Solution Approach 1:
The patent applies local quality by assigning different modulation orders to different parts of the multiplexed transmission. Specifically, the uplink control message uses a first modulation order optimized for control information reliability, while the uplink data channel uses a second modulation order optimized for data throughput. This allows each component to have the appropriate modulation characteristics for its specific requirements, thereby maintaining transmission quality while improving overall spectral efficiency.
2Productivity
If different modulation orders are used for control messages and data channels, then resource utilization is improved, but decoding complexity increases
Solution Approach 1:
The patent segments the multiplexed transmission into distinct components with different modulation orders. The downlink control information is divided into a first portion carrying control messages and a second portion carrying data, allowing each to be decoded using its optimal modulation order. This segmentation enables the receiver to process each component independently with appropriate complexity, improving resource utilization without excessively increasing overall decoding complexity.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication to multiplex an uplink control message using a first modulation and coding scheme (MCS) on an uplink data channel associated with a second MCS different from the first MCS. The UE may multiplex the control message on the data channel and transmit the multiplexed message to a network entity, for example.