Joint Multi-RU Encoding with BCC Interleaving and LDPC Tone Mapping
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Solution Overview
Problem
Current wireless communication technologies face challenges in efficiently encoding and processing information for multi-resource unit (multi-RU) operations, particularly in implementing binary convolutional codes (BCC) interleavers and low-density parity-check (LDPC) tone mappers for improved spectrum utilization and frequency diversity in next-generation wireless local area networks (WLANs).
Innovation Solution
The proposed solution involves joint encoding schemes with interleavers and tone mappers for multi-RU operations, where information bits are processed through BCC interleavers and LDPC tone mappers on either an aggregate-RU or individual-RU basis, enabling efficient encoding and transmission across multiple resource units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If joint encoding schemes are implemented for multi-RU operations, then spectrum utilization and link quality are improved, but the complexity of encoding and processing increases
Solution Approach 1:
The patent segments the multi-RU transmission into multiple code blocks, each independently encoded and processed. This segmentation allows the system to handle complex multi-RU operations through simpler, manageable code blocks while maintaining overall reliability and improving spectral efficiency through coordinated transmission across multiple RUs.
2Reliability
If BCC interleaver and LDPC tone mapper are implemented for multi-RU, then frequency diversity is improved, but the processing time and complexity increase
Solution Approach 1:
The patent applies BCC interleaving and LDPC tone mapping as preliminary processing steps before transmission. By pre-interleaving and pre-tone-mapping the encoded bits, the system establishes frequency diversity protection in advance, reducing real-time processing requirements and enabling faster transmission while maintaining reliability.
3Productivity
If multi-RU allocation is implemented for single STA, then spectrum utilization is improved, but the difficulty of encoding and interleaving increases
Solution Approach 1:
The patent implements a universal encoding framework that handles multi-RU allocations through standardized code block segmentation and processing. This universal approach allows the same encoding machinery to serve multiple RUs simultaneously, improving spectrum utilization while avoiding the need for complex, customized encoding schemes for each RU configuration.
Data Source
AI summary
A method of joint encoding schemes with interleaver and tone mapper for multiple-resource unit (multi-RU) operation involves performing joint encoding of a plurality of information bits to generate a plurality of encoded bit sequences. The method also involves processing the plurality of encoded bit sequences by interleaving and tone mapping the encoded bit sequences with respect to a plurality of resource units (RUs) on either or both of an aggregate-RU basis and an individual-RU basis to generate a plurality of processed bit sequences. The method further involves transmitting the plurality of processed bit sequences over the plurality of RUs.