Wireless Resource Multiplexing Pattern Coordination for Inter-Cell Interference
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Solution Overview
Problem
Wireless communication systems face challenges in managing inter-cell interference and optimizing resource multiplexing patterns to enhance spectral efficiency and maintain orthogonality of data streams, particularly in scenarios where frequency reuse between cells leads to interference at cell edges.
Innovation Solution
The solution involves electronic devices in each cell determining and sharing resource multiplexing pattern information across cells to identify and mitigate inter-cell interference by allocating resource multiplexing patterns that maintain orthogonality, using methods such as SCMA, PDMA, and IDMA systems, and coordinating resource allocation to prioritize terminal devices based on channel state and location information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If frequency resources are reused between cells to improve spectral efficiency, then system spectral efficiency is improved, but inter-cell interference increases at cell edges
Solution Approach 1:
The patent applies local quality by configuring different resource multiplexing patterns for terminal devices located at different positions within the cell. Specifically, terminal devices at cell edges are assigned different resource multiplexing patterns than those at cell centers, allowing frequency resource reuse while mitigating inter-cell interference at edge locations through localized differentiation of resource allocation
2Reliability
If resource multiplexing patterns are optimized to reduce inter-cell interference, then communication quality at cell edges is improved, but system complexity increases due to coordination requirements
Solution Approach 1:
The patent introduces an intermediary mechanism where a first network device (such as a base station or controller) serves as the mediator that determines resource multiplexing patterns for terminal devices and informs a second network device (such as a neighboring base station). This intermediary approach coordinates resource allocation between cells, reducing inter-cell interference while distributing the complexity across multiple network devices rather than requiring complex distributed coordination
3Object-affected harmful factors
If resource multiplexing pattern information is shared between network devices to mitigate interference, then inter-cell interference is reduced, but information overhead and signaling complexity increase
Solution Approach 1:
The patent extracts only the essential resource multiplexing pattern information needed for interference mitigation and transmits this specific subset between network devices. Rather than sharing complete resource allocation details for all terminal devices, the system extracts and communicates only the critical pattern identifiers and configuration parameters necessary for coordinating interference reduction, thereby reducing signaling overhead while maintaining effectiveness
Data Source
AI summary
Disclosed are an electronic device, method and storage medium for a wireless communication system. The electronic device for the wireless communication system comprises processing circuitry configured to, determine resource multiplexing pattern information for a plurality of terminal devices within the first cell; and inform a second electronic device serving a second cell of the determined resource multiplexing pattern information for the plurality of terminal devices within a first cell.