Interference Management via Dynamic Mode Switching
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing interference effectively in local subnetworks, particularly in dynamic and diverse interference environments, such as those encountered in 6G networks with in-X cells.
Innovation Solution
The implementation of a flexible switching mechanism between centralized and distributed interference management modes, where an apparatus determines conditions for switching based on an interference stability metric and the period between resource allocation messages, allowing access points to autonomously switch between modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If centralized interference management mode is used, then interference coordination is improved, but system complexity and latency increase
Solution Approach 1:
The patent implements dynamic switching between centralized and distributed interference management modes based on coverage conditions and interference characteristics. The system transitions from static mode selection to dynamic adaptation, allowing the network to optimize between centralized coordination (when covered) and distributed autonomy (when out of coverage), thereby reducing overall system complexity while maintaining interference coordination effectiveness.
Solution Approach 2:
The patent segments the interference management functionality into centralized and distributed components that can operate independently or in coordination. The distributed interference management function is separated as an autonomous fallback mechanism, allowing the system to partition control responsibilities based on coverage availability, reducing the burden on centralized controllers while maintaining overall interference coordination.
2Device complexity
If distributed interference management mode is used, then system complexity is reduced, but interference coordination capability deteriorates
Solution Approach 1:
The patent enables the distributed interference management function to serve itself autonomously when centralized control is unavailable. Access points equipped with distributed interference management capabilities can independently make interference coordination decisions based on local measurements and pre-configured parameters, eliminating dependency on centralized controllers and reducing system complexity while maintaining adequate interference coordination through self-service operations.
3Manufacturing precision
If resource allocation messages are transmitted frequently, then resource allocation accuracy is improved, but transmission overhead and latency increase
Solution Approach 1:
The patent implements periodic transmission of resource allocation messages from the centralized controller to access points, combined with distributed autonomous operation between periods. This periodic action pattern allows the system to achieve adequate resource allocation accuracy through regular updates while reducing transmission overhead and latency by allowing access points to operate autonomously using locally cached resource allocation information during intervals between periodic messages.
Data Source
AI summary
Various example embodiments relate to interference management in communication systems. An overlay network may transmit resource allocation messages periodically to an access point. The access point may switch to a distributed interference management mode. in response to detecting a number of consecutively lost resource allocation messages to meet a condition. Apparatuses, methods, and computer programs are disclosed.