CoMP Measurement System for Interference Mitigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication networks, inter-cell interference limits throughput due to overlapping signal coverage areas of multiple base stations, which existing technologies fail to effectively manage.
Innovation Solution
A subscriber station and base station system that measures and reports channel quality values for candidate transmission points, enabling coordinated multipoint (CoMP) transmission to optimize signal transmission and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple base stations use frequency bands and standardized codebooks for precoding transmission to their respective user equipments, then each base station can serve its intended UEs, but inter-cell interference occurs that constrains network throughput
Solution Approach 1:
The patent segments the network into coordinated multi-point transmission groups where specific base stations are selected as transmission points for each UE. This segmentation allows interference management by dividing the network into coordinated units rather than treating all base stations equally, thereby reducing inter-cell interference while maintaining network throughput.
Solution Approach 2:
The patent implements preliminary actions by having UEs measure and report channel quality values for multiple candidate transmission points before actual data transmission. This advance measurement and reporting enables the network to pre-select optimal transmission points and configure CoMP schemes, preventing interference issues rather than reacting to them after transmission begins.
2Reliability
If existing technologies are used to manage inter-cell interference, then standard procedures are maintained, but the interference cannot be effectively managed and throughput remains constrained
Solution Approach 1:
The patent implements feedback mechanisms where UEs continuously measure channel quality values for candidate transmission points and report these measurements to the network. This feedback loop enables dynamic selection of transmission points and adaptive CoMP scheme configuration, improving interference management effectiveness and thereby increasing network throughput beyond what standard procedures achieve.
3Productivity
If coordinated multipoint transmission is implemented with measurement and reporting of channel quality values, then optimal transmission points can be determined and CoMP can be established, but the system complexity increases
Solution Approach 1:
The patent uses universal channel quality value measurements that can serve multiple purposes: identifying candidate transmission points, selecting optimal TPs for CoMP, and monitoring transmission performance. This multi-functionality reduces the need for separate measurement systems, thereby improving data transmission efficiency while limiting the increase in system complexity.
Data Source
AI summary
A subscriber station configured to communicate with one or more base stations or other transmission points (TPs) in a wireless communication network is configured to receive, from the network, information associated with one or more of the TPs that are candidates for coordinated multipoint (CoMP) transmission with the subscriber station, to measure a plurality of channel quality values for each of the one or more TPs, and to report the measured channel quality values to the network.