Base Station MCS Determination via Interference Control Mode
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in accurately determining the Modulation and Coding Scheme (MCS) level for a receiver's channel state due to the lack of consideration for interference in the channel environment, leading to inefficient data transmission.
Innovation Solution
A method and apparatus that involve transmitting response signals and channel state information to a central coordinator, determining an interference control mode based on scheduling information, and adjusting the MCS level accordingly to improve data transmission efficiency by accounting for interference from adjacent base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the MCS level is determined based only on channel state information and ACK/NACK signals, then the determination process is simple, but the accuracy of channel state reflection is insufficient
Solution Approach 1:
The patent introduces an interference indicator as an intermediary parameter that bridges the gap between simple MCS determination and accurate channel state reflection. This indicator is derived from scheduling information and interference control modes, and it modifies the channel state information to account for interference effects, thereby improving measurement precision without significantly increasing system complexity
Solution Approach 2:
The patent changes the parameter set used for MCS determination by incorporating an interference indicator that modifies the channel state information. This parameter change allows the system to reflect interference conditions in the MCS selection process, improving the accuracy of channel state representation while maintaining a manageable determination process
2Productivity
If interference control is considered in MCS level determination, then data transmission efficiency is improved, but the system complexity increases
Solution Approach 1:
The patent applies preliminary action by determining the interference control mode and calculating the interference indicator in advance, based on scheduling information received from the central coordinator. This preliminary determination of interference conditions allows the MCS selection process to efficiently incorporate interference awareness without adding significant complexity to the real-time transmission process
Solution Approach 2:
The interference indicator serves as a mediator that translates complex interference control modes into a simplified parameter that can be directly used in MCS determination. This intermediary representation maintains data transmission efficiency by providing interference-aware channel state information in a form that integrates smoothly with existing MCS selection mechanisms
Data Source
AI summary
A method for transmitting data by a base station in a wireless communication system is provided. The method includes transmitting a response signal for downlink data received from a user equipment and channel state information to a central coordinator, receiving scheduling information from the central coordinator and determining an interference control mode determined according to whether interference of adjacent base stations is controlled, based on the scheduling information, and transmitting data to the user equipment by using a Modulation and Coding Scheme (MCS) level according to the determined interference control mode.