Non-coherent joint transmission hypothesis evaluation in multi-transmit receive point deployments
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently evaluating non-coherent joint transmission hypotheses in multi-transmit receive point deployments, particularly in scenarios involving multiple TRPs, due to power differences between single-TRP and multi-TRP operations, which affect evaluation accuracy and communication performance.
Innovation Solution
The proposed solution involves determining a set of power control offset ratios for various hypotheses associated with CSI RS resource or port group pairs and applying evaluation metrics to compensate for power differences, enabling accurate comparison and selection of optimal transmission hypotheses in multi-TRP environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If power control offset ratios are not applied in multi-TRP hypothesis evaluation, then the evaluation process is simpler, but the evaluation accuracy deteriorates due to power differences between single-TRP and multi-TRP operations
Solution Approach 1:
The patent applies parameter changes by determining power control offset ratios that adjust the power parameters of different hypotheses (single-TRP vs. multi-TRP) to a common reference level. This allows accurate comparison by changing the power parameter to account for the inherent power differences between transmission types, thereby improving evaluation accuracy without requiring complex additional hardware.
2Reliability
If multiple hypotheses are evaluated without power compensation, then the selection process is faster, but the communication performance deteriorates due to inaccurate hypothesis selection
Solution Approach 1:
The patent implements preliminary action by pre-determining power control offset ratios for different hypothesis types before the actual hypothesis evaluation and selection process. This preliminary power normalization allows for faster and more accurate comparison during the selection phase, improving communication performance without significant time penalty since the power adjustment calculations are prepared in advance.
3Measurement precision
If power control offset ratios are determined for all hypothesis types, then evaluation accuracy is improved, but the computational complexity increases
Solution Approach 1:
The patent applies local quality by determining power control offset ratios specifically for the local context of each hypothesis type (single-TRP, multi-TRP, etc.) rather than using a universal complex calculation model. Each hypothesis type receives a tailored power offset ratio that is appropriate for its specific characteristics, improving throughput measurement accuracy while keeping computational complexity manageable through localized rather than global optimization.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may evaluate the plurality of hypotheses based at least in part on the set of power control offset ratios and on a set of evaluation metrics to select at least one of the plurality of hypotheses. Numerous other aspects are provided.