Phase Compensation for Equivalent Subband Channel Correlation
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Solution Overview
Problem
Existing wireless communication systems face challenges in determining an equivalent subband channel that maximizes total correlation with multiple sub-channels, leading to potential issues with signal interference and reduced system capacity.
Innovation Solution
The method involves obtaining at least two sub-channels, determining phase differences between them, compensating the sub-channels based on these phase differences, and calculating an equivalent subband channel that maximizes total correlation with the sub-channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional channel estimation methods are used without phase compensation, then the processing complexity is low, but the correlation between the equivalent subband channel and sub-channels is insufficient leading to signal interference
Solution Approach 1:
The patent applies parameter changes by adjusting the phase parameters of sub-channels through phase difference calculation and compensation. The phase compensation matrix modifies the phase angles of channel coefficients to align sub-channels, thereby improving correlation while maintaining manageable processing complexity through structured mathematical operations.
Solution Approach 2:
The patent implements feedback mechanisms by calculating phase differences between sub-channels and using this information to generate phase compensation matrices. The compensated sub-channels are then used to form the equivalent subband channel, creating a feedback loop that ensures maximum correlation while controlling processing complexity through iterative refinement.
2Reliability
If phase compensation is applied to maximize correlation, then signal quality improves and interference reduces, but the computational processing load increases
Solution Approach 1:
The patent changes phase parameters systematically by calculating phase differences and applying compensation matrices, which improves signal quality through aligned sub-channels. The computational energy is managed by performing these operations only when needed and using efficient matrix multiplication algorithms.
Solution Approach 2:
The patent applies partial phase compensation by focusing on compensating only the phase differences that significantly impact correlation, rather than uniformly processing all parameters. This selective approach improves signal quality while reducing unnecessary computational energy consumption.
3Productivity
If multiple sub-channels are processed to determine equivalent subband channel, then system capacity increases, but the processing time and complexity increase
Solution Approach 1:
The patent merges multiple sub-channels into a single equivalent subband channel by calculating phase differences, generating compensation matrices, and combining compensated sub-channels through averaging. This merging process increases system capacity utilization while managing processing time through efficient consolidation operations.
Solution Approach 2:
The patent performs preliminary phase difference calculation and phase compensation matrix generation before final channel determination. This preliminary action organizes the processing steps to handle multiple sub-channels systematically, improving system capacity while controlling processing time through pre-computation of compensation parameters.
Data Source
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AI summary
A method for determining an equivalent subband channel, the method comprising: obtaining, for the subband, at least two sub-channels; determining at least one phase difference with respect to the at least two sub-channels; compensating at least one of the at least two sub-channels based on the at least one phase difference with respect to the at least two sub-channels; and determining the equivalent subband channel based on the compensated at least one sub-channel of the at least two sub-channels.