Unified Interleaver Mapping for Multi-RU WLAN Bitstreams
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Solution Overview
Problem
Existing wireless communication technologies face challenges in designing interleavers and LDPC tone mappers for users allocated multiple resource units (RUs) in next-generation wireless local area networks (WLAN) standards like 802.11be, leading to increased hardware costs due to the need for separate interleavers and LDPC tone mappers for each RU.
Innovation Solution
A unified interleaver or LDPC tone mapper is used to reorder all bits in a coded bitstream allocated to multiple RUs, reducing hardware costs by eliminating the need for multiple interleavers or LDPC tone mappers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate interleavers or LDPC tone mappers are used for each RU allocated to a user, then the data processing can be performed correctly for each RU, but the hardware costs increase due to the need for multiple interleavers or LDPC tone mappers
Solution Approach 1:
The patent merges multiple separate interleavers or LDPC tone mappers into a single unified interleaver or tone mapper that can process multiple RUs. The unified device consolidates the functionality of multiple separate devices, allowing one interleaver/tone mapper to handle bit reordering for all RUs allocated to a user, thereby reducing hardware costs while maintaining correct data processing
Solution Approach 2:
The unified interleaver or LDPC tone mapper is designed with multi-functionality to serve multiple RUs simultaneously. Instead of being dedicated to a single RU, the unified device can process bits from different RUs by configuring its operation based on the RU allocation, making one device universal for handling multiple RUs and eliminating the need for separate dedicated devices for each RU
Data Source
AI summary
Embodiments of this application provide a data processing method and apparatus, to scramble, by using one interleaver or one LDPC tone mapper, a bit sequence of a bitstream of a user to whom a plurality of RUs are allocated, so that hardware costs are reduced. The method includes: allocating a coded bitstream of a first user to M RUs or a first RU including M RUs, where the M RUs or the first RU is an RU allocated to the first user, and M is a positive integer greater than 1; reordering all bits in the coded bitstream by using a first interleaver or a first tone mapper.