6 GHz LPI BCC Interleavers and LDPC Mappers for dRUs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies fail to optimize BCC interleavers and LDPC tone mappers for distributed-tone resource units (dRUs) and distributed-tone multi-resource units (dMRUs) in 6 GHz low-power indoor (LPI) systems, leading to suboptimal transmission power and coverage range due to different tone patterns between regular and distributed-tone units.
Innovation Solution
Optimization of BCC interleavers and LDPC tone mappers by processing subcarriers to generate dRUs and dMRUs, employing LDPC encoding and BCC encoding with specific optimization parameters, and using tone mappers to distribute tones over a wider bandwidth for improved transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If tones are distributed over a wider bandwidth to create dRUs/dMRUs, then coverage range and transmission power are improved, but the performance of existing BCC interleavers and LDPC tone mappers deteriorates due to non-consecutive tone patterns
Solution Approach 1:
The patent optimizes specific parameters of BCC interleavers (such as interleaving depth and pattern) and LDPC tone mappers (such as tone mapping rules and distribution patterns) to accommodate the non-consecutive tone structure of dRUs/dMRUs. By adjusting these parameters, the system maintains effective error correction and tone mapping performance while utilizing distributed tones for improved coverage.
Solution Approach 2:
The patent introduces flexible and adaptive BCC interleaver and LDPC tone mapper designs that can dynamically adjust to different dRU/dMRU configurations. This includes adaptive tone mapping strategies that respond to varying channel conditions and distributed tone patterns, enabling the system to optimize performance across different operational scenarios.
2Power
If distributed-tone resource units are used to boost transmission power, then coverage range is improved, but system complexity increases due to need for optimized BCC interleavers and LDPC tone mappers
Solution Approach 1:
The patent segments the tone mapping and interleaving processes into modular components that can be independently optimized and implemented. This modular approach allows for standardized building blocks that reduce overall system complexity while maintaining the benefits of distributed-tone configurations.
Solution Approach 2:
The patent employs simplified BCC interleaver and LDPC tone mapper designs that use computationally efficient algorithms and data structures. These optimized implementations reduce processing complexity and computational burden, making the system more practical for real-world deployment despite the increased functionality required for dRUs/dMRUs.
Data Source
AI summary
Various schemes pertaining to optimization of binary convolutionally encoded (BCC) interleaver and low-density parity-check (LDPC) tone mapper for distributed-tone resource units (RUs) and multi-resource units (MRUs) in 6 GHZ low-power indoor (LPI) systems are described. An apparatus processes a plurality of subcarriers of a RU to generate a distributed-tone RU (dRU) or a distributed-tone multi-RU (dMRU). The apparatus then transmits the dRU or the dMRU to another apparatus. In processing the plurality of subcarriers, the apparatus codes a plurality of information bits by either LDPC encoding or BCC encoding and transmitting the plurality of subcarriers with one or more optimization parameters using a LDPC tone mapper or a BCC interleaver.