FDRSB Correction Table for Wireless Signal Quality
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Solution Overview
Problem
Existing wireless communication systems face challenges in effectively correcting frequency band distortion, leading to increased noise and power expenditure, particularly due to frequency domain residual sideband (FDRSB) impairment.
Innovation Solution
A method and system for improving frequency band distortion correction by using a network entity to obtain CSI reports from user equipment (UE), perform an FDRSB identification procedure, and generate an FDRSB correction table. This table indicates which frequency bands and communication chains benefit from FDRSB correction, allowing the UE to apply targeted corrections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If FDRSB correction is applied to all frequency bands and communication chains, then signal quality is improved, but power expenditure increases
Solution Approach 1:
The patent applies FDRSB correction selectively only to frequency bands and communication chains where the distortion exceeds a threshold, rather than uniformly across all bands. The network entity determines an FDRSB correction table that identifies specific frequency bands and communication chains requiring correction, allowing targeted application of correction resources where they provide benefit while avoiding unnecessary power consumption in bands that do not require correction.
2Object-affected harmful factors
If FDRSB correction is applied across all frequency bands, then noise is reduced, but device complexity increases
Solution Approach 1:
The patent segments the frequency spectrum into multiple frequency bands and evaluates FDRSB distortion levels independently for each band. The network entity generates an FDRSB correction table that divides frequency bands into those requiring correction and those that do not, based on threshold comparisons. This segmentation allows the system to manage complexity by handling only the necessary subsets of frequency bands rather than processing all bands uniformly.
3Use of energy by moving object
If selective FDRSB correction is implemented, then power expenditure is reduced, but measurement precision requirements increase
Solution Approach 1:
The patent implements a feedback mechanism where the network entity measures FDRSB distortion levels for each communication chain and frequency band, compares these measurements against threshold values, and generates an FDRSB correction table based on the comparison results. The UE then applies correction only to the identified frequency bands and communication chains. This feedback-driven selective correction reduces power expenditure while maintaining adequate measurement precision by focusing measurements and corrections only where distortion exceeds acceptable levels.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A network entity may obtain from a user equipment (UE), a report that indicates one or more signal quality values associated with a set of communication chains of the UE. The network entity may perform a frequency domain residual sideband (FDRSB) identification procedure to determine an FDRSB correction table associated with a set of frequency bands and the set of communication chains. The network entity may output to the UE a control message indicating the FDRSB correction table that identifies which one or more frequency bands of the set of frequency bands and which one or more communication chains of the set of communication chains are associated with FDRSB correction. The UE may demodulate one or more messages via at least one communication chain of the set of communication chains based on FDRSB correction performed using the FDRSB correction table.