Dynamic Demodulation Finger Allocation in Multicarrier Receivers
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in dynamically allocating demodulation resources in multicarrier receivers, leading to suboptimal data throughput due to fixed resource allocation and varying signal quality across multiple carriers.
Innovation Solution
Implementing a method for dynamically allocating demodulation fingers based on signal-to-noise ratio (SNR) and packet error rate (PER) measurements, allowing for reallocation of resources among receivers to optimize data transmission and reception across multiple carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fixed resource allocation is used in multicarrier receivers, then device complexity is reduced and ease of operation is improved, but productivity (data throughput) deteriorates due to inability to adapt to varying signal quality across carriers
Solution Approach 1:
The patent implements dynamic resource allocation where demodulation fingers are allocated to carriers based on real-time signal quality measurements (SNR and PER). The system continuously monitors carrier conditions and reallocates demodulation resources dynamically, allowing the receiver to adapt to varying signal quality across multiple carriers, thereby improving overall data throughput without requiring complex manual configuration
Solution Approach 2:
The system employs feedback mechanisms by measuring SNR and PER for each carrier and using these measurements to determine optimal demodulation finger allocation. The receiver monitors transmission quality and adjusts resource allocation accordingly, creating a closed-loop system that continuously optimizes throughput based on actual channel conditions
2Adaptability or versatility
If fixed resource allocation is used, then ease of operation is improved, but adaptability to varying signal quality across carriers deteriorates
Solution Approach 1:
The multicarrier receiver performs self-configuration by automatically measuring signal quality parameters (SNR, PER) and allocating demodulation fingers based on these measurements without requiring external intervention. The system serves itself by adapting resource allocation to current channel conditions, improving adaptability while maintaining operational simplicity
Solution Approach 2:
The system changes operational parameters (demodulation finger allocation) based on measured signal quality parameters (SNR, PER). By dynamically adjusting resource allocation parameters according to channel conditions, the system achieves high adaptability to varying signal quality across carriers
Data Source
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AI summary
Systems and methodologies are described that facilitate dynamically allocating demodulation resources of a wideband receiver to provide improved demodulation of simultaneously received signals. Signal-to-noise ratio (SNR) and/or packet error rate (PER) can be measured for the plurality of carriers to determine which demodulators related to the carriers require more resources than others to demodulate signals at a specified signal quality. Where the SNR of a related carrier is high and/or PER is low, the demodulator can require fewer resources than where the SNR of a related carrier is low and/or PER is high. In this regard, the resources are dynamically allocated among the demodulators and reallocated where SNR/PER changes and/or additional resources are made available.