Channel Statistics Segmentation for Clear Channel Assessment
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately determining channel availability for transmission due to varying channel access types, priorities, and frequency ranges, leading to inefficient clear channel assessments and increased interference.
Innovation Solution
A method and apparatus for determining channel statistics, including metrics for listen-before-talk channel access types, channel access priorities, and frequency ranges, to assess the success of clear channel assessments and report this information to a base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If clear channel assessments are performed without detailed channel statistics, then the assessment process is simple and fast, but the accuracy of channel availability determination is poor
Solution Approach 1:
The patent segments channel statistics collection by dividing it into multiple dimensions: channel access types (Type 1 and Type 2 LBT), channel access priorities (four different priority levels), and frequency ranges. This segmentation allows the system to collect detailed statistics for each category separately, improving assessment accuracy while organizing the complexity into manageable structured data that can be efficiently reported to the base station.
2Productivity
If detailed channel statistics are collected for multiple access types and priorities, then the accuracy of resource allocation improves, but the overhead of statistics reporting increases
Solution Approach 1:
The patent merges channel statistics reporting with existing uplink communication channels, specifically incorporating the statistics into UCI (Uplink Control Information) or PUSCH (Physical Uplink Shared Channel) transmissions. This integration allows detailed channel statistics to be reported alongside other uplink control data, reducing the need for separate dedicated reporting channels and minimizing the additional overhead introduced by the statistics.
3Reliability
If clear channel assessments are performed frequently to improve reliability, then transmission success rate increases, but channel access delay increases due to listen-before-talk requirements
Solution Approach 1:
The patent implements preliminary channel statistics collection and analysis at the UE level, maintaining updated statistics about channel conditions, successful assessments, and failure patterns. This pre-computed information allows the system to make more informed decisions about when and how to perform clear channel assessments, potentially reducing the frequency of assessments while maintaining reliability by targeting assessments more strategically based on historical statistics.
Data Source
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AI summary
Apparatuses, methods, and systems are disclosed for determining channel statistics for clear channel assessments. One method (900) includes determining (902), by an apparatus (102), channel statistics corresponding to a plurality of listen-before-talk channel access types, a plurality of channel access priorities, a plurality of frequency ranges, or some combination thereof. The channel statistics indicate whether clear channel assessments for transmission on a shared resource are successful. The method (900) includes transmitting (904) information corresponding to the channel statistics to a network device.