Listening Reference Signal Interference Coordination
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Solution Overview
Problem
Current mobile communication technologies face challenges in managing interference between adjacent base stations and user equipment (UEs) in indoor environments, leading to suboptimal performance and increased load pressure on cellular networks.
Innovation Solution
A method and node for listening, which involves receiving and analyzing a listening reference signal in a listening pilot time slot to obtain interference information and resource configuration of adjacent nodes, allowing for interference coordination and resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple small base stations are deployed in a dedicated area to provide high-speed data service, then service quality and coverage are improved, but inter-basestation interference and inter-UE interference increase
Solution Approach 1:
The patent implements a listening mechanism where base stations and UEs actively monitor and detect interference signals from neighboring nodes. The received listening reference signals are analyzed to obtain interference information, which is then fed back to adjust resource allocation and transmission parameters, creating a closed-loop interference coordination system
Solution Approach 2:
The patent introduces listening reference signals as an intermediary mechanism to indirectly measure and characterize interference conditions. These reference signals serve as mediators that enable nodes to gather interference information without directly experiencing the full impact of interference, allowing for coordinated resource management
2Adaptability or versatility
If adjacent small base stations adopt different uplink and downlink sub frame ratios to increase flexibility, then adaptability is improved, but inter-basestation interference and inter-UE interference worsen
Solution Approach 1:
The listening mechanism enables base stations to detect the sub frame ratios and resource configurations of neighboring base stations. This feedback information allows the system to identify and coordinate resource allocations across cells with different configurations, reducing interference while maintaining the flexibility of different sub frame ratios
Solution Approach 2:
The patent changes the parameter of resource configuration transparency by making neighboring nodes' resource allocations visible through listening reference signals. This allows dynamic adjustment of transmission parameters based on detected neighbor configurations, enabling interference coordination between base stations with different uplink and downlink sub frame ratios
3Productivity
If D2D communication mode is used to reduce load pressure on cellular network, then network load is reduced, but interference management complexity increases
Solution Approach 1:
The listening mechanism provides UEs with the ability to detect and measure interference from other D2D pairs and from cellular network nodes. This feedback enables distributed interference coordination where UEs can autonomously select resources and adjust transmission parameters based on detected interference conditions
Solution Approach 2:
The patent enables UEs to perform self-service interference coordination by autonomously listening to and analyzing signals from other nodes. Each UE independently gathers interference information and makes its own resource allocation decisions, eliminating the need for complex centralized interference management
Data Source
AI summary
Embodiments of the present invention disclose a method and a node for listening. The method includes: receiving a listening reference signal in a listening pilot time slot; analyzing the listening reference signal received to obtain interference information of a node sending the listening reference signal and/or a resource configuration of a node sending the listening reference signal. By adopting the present invention, the node in the embodiments of the present invention receives the listening reference signal in the listening pilot time slot, and analyzes the received listening reference signal to obtain the interference information of a node sending the listening reference signal and/or the resource configuration of the node sending the listening reference signal, so as to listen to an interference condition and/or a resource configuration of an adjacent node.