Legendre Precoder for MIMO Spatial Multiplexing
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Solution Overview
Problem
Current wireless communication systems, such as LTE and NR, face challenges in improving spectral efficiency and resource management as demand for mobile broadband access increases, particularly in generating accurate spatial multiplexing modes for multiple-input multiple-output (MIMO) channels without consuming excessive time, power, and resources.
Innovation Solution
The method involves generating a Legendre precoder for transmission on a MIMO channel by computing Legendre polynomials for a quantity of transmit antennas, allowing for efficient spatial multiplexing without requiring line of sight distance measurements, thus conserving resources and maintaining performance comparable to optimal precoders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If optimal precoders are used for spatial multiplexing in MIMO channels, then spectral efficiency is improved, but time and power consumption increase due to distance measurements
Solution Approach 1:
The patent extracts and eliminates the distance measurement step from the precoding process. By using Legendre polynomials that do not require distance information, the method removes the harmful dependency on time-consuming measurements while maintaining the beneficial spectral efficiency of optimal precoders
Solution Approach 2:
The patent replaces the expensive and time-consuming distance measurement process with a computationally inexpensive Legendre polynomial calculation. This substitution uses simple mathematical operations that consume minimal time and resources while achieving comparable precoding performance
2Productivity
If optimal precoders are used for spatial multiplexing in MIMO channels, then spectral efficiency is improved, but power consumption increases due to distance measurements
Solution Approach 1:
The patent extracts and eliminates the distance measurement step from the precoding process. By using Legendre polynomials that do not require distance information, the method removes the harmful dependency on power-intensive measurements while maintaining the beneficial spectral efficiency of optimal precoders
Solution Approach 2:
The patent replaces the expensive and power-consuming distance measurement process with a computationally inexpensive Legendre polynomial calculation. This substitution uses simple mathematical operations that consume minimal power while achieving comparable precoding performance
3Measurement precision
If distance measurements are performed for precoding, then spatial multiplexing accuracy is improved, but resource consumption increases
Solution Approach 1:
The patent extracts and eliminates the distance measurement step from the precoding process. By using Legendre polynomials that do not require distance information, the method removes the harmful dependency on resource-intensive measurements while maintaining the beneficial spatial multiplexing accuracy
Solution Approach 2:
The patent replaces the expensive and resource-consuming distance measurement process with a computationally inexpensive Legendre polynomial calculation. This substitution uses simple mathematical operations that consume minimal resources while achieving comparable precoding performance
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may generate a Legendre precoder for transmission on a multiple-input multiple-output channel based at least in part on computing Legendre polynomials for a quantity of transmit antennas. The wireless communication device may transmit a communication using the Legendre precoder. Numerous other aspects are provided.