NR RSRP Measurement Using Delta-Based Baseband Accuracy Testing
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Solution Overview
Problem
The accuracy of RSRP measurements in NR wireless communication systems above 6GHz is compromised due to RF impairments and beamforming gain, making it difficult to assess the baseband measurement accuracy accurately.
Innovation Solution
A two-part RSRP test method is employed, where the first part measures total RSRP accuracy including RF-related loss, and the second part measures RSRP baseband accuracy by calculating RSRP delta, canceling out RF impact to ensure baseband inaccuracy is assessed without large beamforming variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If RSRP measurements are performed in NR wireless communication systems above 6GHz, then wireless connectivity and data transmission are enabled, but measurement accuracy is compromised due to RF impairments and beamforming gain
Solution Approach 1:
The patent segments the RSRP measurement assessment into two distinct parts: (1) total RSRP accuracy measurement that includes RF-related loss, and (2) baseband RSRP accuracy measurement that excludes RF impact. This segmentation allows each part to be evaluated independently with appropriate test methods, resolving the contradiction by enabling accurate measurement assessment while maintaining wireless connectivity capability above 6GHz
Solution Approach 2:
The patent introduces an intermediary calculation method using RSRP delta (difference) to compensate for RF impairments and beamforming gain variations. By measuring RSRP at different points and calculating the delta, the system isolates baseband measurement accuracy from RF-related distortions, enabling accurate assessment despite operating above 6GHz with beamforming
2Measurement precision
If total RSRP accuracy measurement including RF-related loss is performed, then comprehensive measurement capability is achieved, but baseband measurement accuracy cannot be accurately assessed due to RF impairment interference
Solution Approach 1:
The patent divides the measurement assessment into two separate measurement campaigns: the first measures total RSRP accuracy including RF loss, while the second measures baseband RSRP accuracy by canceling RF impact. This segmentation prevents information loss by ensuring baseband accuracy can be independently assessed without RF interference
Solution Approach 2:
The patent extracts the baseband measurement component from the total RSRP measurement by using RSRP delta calculation that cancels out RF impairment effects. This extraction isolates the baseband accuracy information that would otherwise be lost in the combined measurement
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AI summary
A method, system, and computer-readable media for evaluating the accuracy of user equipment (UE) reference signal receive power (RSRP) measurements is disclosed. This includes determining both a total reference signal receive power (RSRP) accuracy and a RSRP baseband accuracy associated with the UE. This also includes executing a plurality of comparisons between the total RSRP accuracy, the RSRP baseband accuracy, and a plurality of accuracy thresholds, and then determining the UE passes a measurement accuracy test based on the plurality of comparisons.