Radio Base Station Detection Module Layout for Interference Mitigation
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Solution Overview
Problem
Modularly designed radio base stations face increased complexity and cost due to unnecessary signaling between detection modules for interference mitigation and multi-user detection, limiting the effectiveness of interference cancellation in wireless communication systems.
Innovation Solution
The solution involves arranging detection modules into subsets where interference information from one subset is communicated to another to optimize interference cancellation, minimizing information exchange and allocating users based on service to optimize interference mitigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detection modules exchange information about user connections for interference mitigation, then interference cancellation effectiveness is improved, but system complexity and implementation cost increase
Solution Approach 1:
The detection modules are divided into subsets, where each subset processes a specific group of users. This segmentation allows interference mitigation to be performed locally within subsets without requiring all modules to exchange information with all other modules, thereby reducing system complexity while maintaining interference cancellation effectiveness.
Solution Approach 2:
Each detection module or subset is assigned specific functionality for handling particular user groups. The information exchange is localized to relevant subsets rather than being global, which reduces the overall signaling complexity while preserving the interference mitigation capability where it is most needed.
2Reliability
If detection modules exchange information about user connections for interference mitigation, then interference cancellation effectiveness is improved, but implementation cost increases
Solution Approach 1:
By segmenting detection modules into subsets that handle specific user groups, the implementation cost is reduced because each module only needs to exchange information with a limited set of other modules rather than all modules in the system. This segmentation maintains interference cancellation effectiveness while lowering the overall implementation cost.
3Adaptability or versatility
If users are allocated to different detection modules, then multi-user detection capability is improved, but information exchange requirements increase
Solution Approach 1:
Users are segmented into different groups assigned to specific detection module subsets. This segmentation enables multi-user detection capability while minimizing information exchange requirements, as each subset only needs to share information with other subsets that handle related user groups, rather than requiring complete information exchange across all modules.
Data Source
AI summary
In a method of interference mitigation in a multi user detection capable radio base station in a communication system, which radio base station comprises a set confined detection modules, at least one of which is capable of handling multiple user connections, first and at least a second subset of detection modules are formed from said set, wherein the second set comprises at least one interference mitigation capable detection module. Interference information from the first subset is communicated to the second subset, interference originating in user connections of the first subset are then mitigated from the user connections of the second subset. Subsequently, interference is mutually mitigated between the connections within the interference mitigation capable detection module.