Coordinated Radio Access Point Communication for 5G Interference Mitigation
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Solution Overview
Problem
In 5G wireless communication systems, there is a challenge in efficiently exchanging information between radio access points to mitigate interference and optimize resource allocation, particularly in overlapping coverage areas, which affects the quality of service for user equipment (UE) due to severe signal interference.
Innovation Solution
A method and apparatus for coordinated communication between radio access points, where one radio access point requests and receives channel information from another, and exchanges resource allocation information for Coordinated Multi-Point (CoMP) transmission and reception, using specific message structures and periodicity settings to optimize information exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If radio access points exchange detailed channel information frequently, then coordination accuracy improves, but signaling overhead and system complexity increase
Solution Approach 1:
The channel information is segmented into essential components (channel quality indicators, interference levels, resource allocation status) that are exchanged periodically rather than continuously. This segmentation allows the system to maintain coordination accuracy while reducing the complexity of information exchange by focusing only on critical parameters.
Solution Approach 2:
Radio access points exchange channel information at predetermined periodic intervals rather than continuously or on-demand. This periodic exchange mechanism maintains up-to-date coordination data while significantly reducing signaling overhead and system complexity compared to real-time continuous information sharing.
2Object-affected harmful factors
If resource allocation information is exchanged between radio access points, then interference mitigation improves, but signaling overhead increases
Solution Approach 1:
The patent extracts and exchanges only the essential resource allocation information needed for interference mitigation (such as resource block assignments, power allocation, and modulation schemes) rather than transmitting complete channel state data. This extraction approach reduces signaling overhead while maintaining effective interference coordination between radio access points.
Solution Approach 2:
Resource allocation information is exchanged with differentiated detail levels based on local conditions - radio access points in high-interference scenarios exchange more detailed information, while those in low-interference scenarios exchange minimal information. This local quality approach optimizes the balance between interference mitigation effectiveness and signaling overhead reduction.
3Reliability
If coordinated multi-point transmission is implemented, then service quality improves, but system complexity increases
Solution Approach 1:
Multiple radio access points are merged into a coordinated transmission system where they function as a unified multi-point entity. By combining the transmitting functions of multiple access points while maintaining independent operation, the system achieves improved service quality through diversity and cooperation without proportionally increasing overall system complexity.
Solution Approach 2:
A centralized coordinator or distributed coordination protocol acts as an intermediary that manages the complex interactions between multiple radio access points. This intermediary handles the coordination logic, resource allocation decisions, and information exchange scheduling, thereby enabling coordinated multi-point transmission with improved service quality while containing system complexity through specialized coordination functions.
Data Source
AI summary
A method and apparatus for performing coordinated communication between radio access points in a communication system are provided. The method includes receiving, by a first radio access point, a message requesting channel information from a second radio access point, transmitting, by the first radio access point, a response message in reply to the message requesting channel information to the second radio access point, transmitting, by the first radio access point, a message reporting the channel information to the second radio access point, and receiving, by the first radio access point, resource allocation information for Coordinated Multi-Point transmission and reception (CoMP) from the second radio access point.