Group Modulation Configuration for Adaptive MCS in 5G Wireless Systems
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Solution Overview
Problem
Current 5G communication systems face challenges in effectively providing services that meet the diverse requirements of enhanced mobile broadband, massive machine-type communications, and ultra-reliable low-latency communications, particularly in terms of data transmission rates, coverage, and latency, which are essential for IoT applications.
Innovation Solution
The implementation of a method and device for transmitting and receiving modulation signals in a wireless communication system, where a base station transmits group modulation configuration information to user equipment (UE), receives feedback, and determines a modulation and coding scheme (MCS) based on channel quality indicators and UE capabilities, allowing for adaptive modulation techniques such as group modulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If adaptive modulation techniques such as group modulation are implemented, then data transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic modulation by allowing the base station to transmit group modulation configuration information to the UE, enabling the modulation scheme to adapt to varying channel conditions. The UE determines feedback information based on channel quality indicators and UE capabilities, and the base station dynamically selects the modulation and coding scheme (MCS) accordingly, making the system flexible and adaptive rather than static.
Solution Approach 2:
The patent changes modulation parameters dynamically by transmitting group modulation configuration information that includes parameters such as group size, number of bits per group, and code rate. The base station adjusts these parameters based on feedback information from the UE regarding channel quality and capabilities, thereby optimizing data transmission efficiency under different channel conditions without requiring complex hardware changes.
2Reliability
If group modulation configuration information is transmitted and feedback is received, then service quality for diverse 5G applications is improved, but loss of time due to additional signaling is increased
Solution Approach 1:
The patent makes the feedback information multi-functional by designing it to simultaneously convey multiple types of information: channel quality indicators (CQI), UE capabilities, and preferred modulation schemes. This allows the base station to make informed MCS decisions without requiring separate signaling messages for each parameter, thereby reducing overall signaling time while maintaining high service quality for diverse 5G applications including eMBB, mMTC, and URLLC.
Data Source
AI summary
The disclosure relates to a method, performed by a base station, for transmitting and receiving modulation signals in a wireless communication system, the method including: transmitting group modulation configuration information to a user equipment, receiving feedback information about a group modulation scheme from the user equipment; and determining a modulation and coding scheme (MCS), in consideration of the feedback information.