MIMO Antenna Configuration for Interference Elimination
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Solution Overview
Problem
In MIMO systems with Full-Duplex technique, self-interference and inter-user interference occur due to simultaneous data transmission and reception, leading to low data transmission efficiency.
Innovation Solution
A method where the first mobile station determines an interference quality value from received signals, transmits it to the base station, which adjusts the antenna settings to optimize receiving performance, including adjusting the number and allocation of transmitting and receiving antennas to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If Full-Duplex technique is applied in MIMO system to reduce data transmission period, then data transmission efficiency is improved, but Self-Interference and Inter-User Interference occur
Solution Approach 1:
The patent implements a feedback mechanism where the first mobile station measures interference quality from signals received from the second mobile station, determines an interference quality value, and feeds this information back to the base station. The base station then adjusts antenna settings based on this feedback to eliminate interference while maintaining Full-Duplex operation
Solution Approach 2:
The patent dynamically adjusts antenna configurations at the base station based on real-time interference conditions. The antenna setting records transmitting antenna configuration and receiving antenna configuration, which are adaptively modified according to the interference quality value feedback from mobile stations, allowing the system to optimize performance under varying interference conditions
2Productivity
If base station uses plurality of antennas for simultaneous transmission and reception to enhance throughput, then data transmission efficiency is improved, but Self-Interference is caused among antennas
Solution Approach 1:
The patent segments the antenna functions at the base station into transmitting antennas and receiving antennas. By configuring specific antennas for transmission and others for reception, the system reduces self-interference among antennas while maintaining multiple antenna operation for enhanced throughput
Solution Approach 2:
The base station receives interference quality values from mobile stations and uses this feedback to dynamically adjust which antennas are configured for transmission versus reception, thereby minimizing self-interference while maintaining high throughput capability
Data Source
AI summary
A MIMO network system and an interference eliminating method thereof are provided. MIMO network system includes a first mobile station and a base station. The base station has a plurality of antennas which are used for transmitting data to the first mobile station and receiving data from a second mobile station at the same time. The first mobile station determines an interference quality value according to a signal from the second mobile station and transmits the interference quality value to the base station. The base station determines a first receiving performance of the first mobile station according to the interference quality value and adjusts an antenna setting of the antennas according to the first receiving performance.