6GHz Wireless Signal Combination for Coverage Enhancement
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Solution Overview
Problem
6GHz long-range wireless communications face limitations in coverage range due to power spectral density (PSD) restrictions, which hinder the effectiveness of low-power indoor (LPI) applications.
Innovation Solution
The proposed solution involves duplicating non-high-throughput physical-layer protocol data units (PPDUs) and performing signal combination and detection across multiple bandwidths to enhance receiver sensitivity and power levels in 6GHz communications, allowing for increased coverage without exceeding PSD limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If transmit power is increased to extend coverage range, then coverage range is improved, but power spectral density restrictions are violated
Solution Approach 1:
The patent segments the transmission by duplicating non-HT PPDUs and transmitting multiple copies across different bandwidths. This allows the system to combine signal energy from multiple segments without exceeding PSD limits on any single frequency, effectively extending coverage while complying with regulatory constraints.
Solution Approach 2:
The patent merges multiple transmitted signal copies at the receiver through combining operations. By duplicating PPDUs and transmitting them across different bandwidths, then combining these signals at reception, the system achieves enhanced receiver sensitivity and extended coverage without requiring increased transmit power density.
2Measurement precision
If receiver sensitivity is enhanced through signal combination, then coverage is extended, but device complexity increases
Solution Approach 1:
The patent divides the received signal into multiple bandwidth segments corresponding to the duplicated PPDUs. By processing and combining these segmented signals systematically, the receiver achieves enhanced sensitivity while managing complexity through structured segmentation rather than handling a single complex signal.
Solution Approach 2:
The patent implements a universal signal combination mechanism that can handle multiple duplicated PPDUs across different bandwidths using the same combining and detection procedures. This multi-functional approach allows the receiver to process various signal configurations through a unified method, reducing overall system complexity.
Data Source
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AI summary
Techniques pertaining to coverage enhancement for 6GHz wireless communications are described. A first station, STA, communicates with a second STA in a 6GHz wireless band and/or low-power indoor, LPI, channels (810). The first STA performs a receiving signal combination and detection across multiple bandwidths such that a power level or a signal strength is enhanced in communicating with the second STA (820).