UE Feedback Subframe Sets for Interference Coordination
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Solution Overview
Problem
Current mobile communication systems face limitations in interference coordination due to restricted information interaction between base stations, which hampers the improvement of cell throughput and increases deployment costs.
Innovation Solution
A method where user equipment feeds back channel state information in subframe sets, allowing base stations to autonomously perform time-domain interference coordination, reducing interference and enhancing scheduling flexibility without relying on direct base station interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If base stations interact with each other for interference coordination, then interference coordination capability is improved, but device complexity and deployment cost increase
Solution Approach 1:
The patent introduces user equipment as an intermediary that collects interference information from multiple base stations and relays it to the scheduling base station. This mediator approach enables interference coordination without requiring direct base station interactions, thereby reducing deployment complexity while maintaining coordination capability
Solution Approach 2:
The system enables self-service by allowing user equipment to autonomously measure and report interference conditions to base stations. Base stations use this reported information to autonomously perform scheduling decisions, eliminating the need for complex inter-base-station communication infrastructure
2Ease of manufacture
If base stations autonomously perform interference coordination without interaction, then deployment cost is reduced, but interference coordination effectiveness deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where user equipment continuously measures interference conditions and reports them to base stations. This feedback loop enables base stations to make informed scheduling decisions based on real-time interference conditions, achieving effective coordination without direct base station interaction
Solution Approach 2:
The patent shifts the interference coordination paradigm from the network infrastructure dimension (base station to base station communication) to the user equipment dimension (UE measurements and reporting). This dimensional change enables coordination effectiveness while reducing deployment complexity
3Reliability
If ABS-subframe sets are used for time-domain interference coordination, then interference avoidance is improved, but scheduling flexibility is reduced
Solution Approach 1:
The patent replaces static ABS-subframe configurations with dynamic, UE-specific scheduling decisions based on real-time interference feedback. Base stations can flexibly allocate resources in any subframe based on current interference conditions reported by user equipment, achieving both interference avoidance and scheduling flexibility
Solution Approach 2:
The patent applies local quality by making scheduling decisions specific to each user equipment based on its unique interference conditions. Instead of uniform ABS-subframe restrictions across all users, each UE receives customized scheduling based on its measured interference environment, optimizing both interference avoidance and resource utilization
Data Source
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AI summary
The present invention discloses a method for feeding back information, a method for transmitting information, an apparatus for feeding back information, and an apparatus for transmitting information, herein the method for feeding back information includes a second transmission node acquiring configuration information transmitted by a first transmission node; the second transmission node acquiring channel state information in a time window according to the configuration information; and the second transmission node feeding back the channel state information in a unit of subframe set.