TDD Configuration Broadcasting for Interference Management
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing time division duplex (TDD) configurations across cells, leading to interference and resource management issues due to the lack of detailed indicators for downlink and uplink slots in existing broadcast messages.
Innovation Solution
The proposed solution involves broadcasting more detailed TDD information, including downlink and uplink indicators for specific slots, using a TDD-UL-DL-ConfigDedicated data structure, which allows child nodes to determine symbols for use within their TDD configurations based on the received indications, thereby managing interference effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detailed TDD configuration indicators are broadcast for each slot, then interference management and resource allocation improve, but message complexity and processing overhead increase
Solution Approach 1:
The TDD configuration message is segmented into slot-specific indicators, where each slot receives a dedicated configuration indicator. This allows precise control of downlink/uplink designation per slot while maintaining organized message structure through systematic segmentation of time resources.
Solution Approach 2:
Different quality levels of configuration information are applied to different slots based on local requirements. Critical slots receiving detailed indicators while less critical slots use default or simplified configurations, optimizing the balance between interference management precision and message complexity.
2Productivity
If dynamic TDD configuration adjustment is enabled, then resource utilization and throughput improve, but processing time and computational resources increase
Solution Approach 1:
TDD configuration indicators are broadcast in advance before the corresponding slots occur, allowing child nodes to pre-process and determine their transmission/reception symbols beforehand. This preliminary configuration action enables dynamic adaptation without real-time processing delays during actual communication slots.
Solution Approach 2:
The system implements dynamic TDD configuration where parent nodes can adjust uplink/downlink slot designations based on real-time network conditions, and child nodes adapt their symbols accordingly. This dynamic adjustment optimizes resource utilization and throughput while maintaining efficient processing through structured indicator-based configuration.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a child node may receive a message, from a serving or neighboring cell, that includes an indication of an intended time division duplex (TDD) configuration for the serving or neighboring cell. The indication may include downlink and uplink indicators for at least one slot used within the intended TDD configuration. Accordingly, the child node may determine a symbol to use within a TDD configuration for the child node, based at least in part on receiving the message. Numerous other aspects are provided.