Large-Bandwidth MRU Allocation for OFDMA WLAN Communication
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Solution Overview
Problem
Existing wireless communication standards lack effective methods for designing Multiple Resource Unit (MRU) patterns for future large-bandwidth scenarios, such as 640 MHz or 480 MHz, to support Orthogonal Frequency Division Multiple Access (OFDMA) transmission.
Innovation Solution
The proposed solution involves defining new MRU patterns for 640 MHz and 480 MHz bandwidths using combinations of 996-tone and 484-tone resource units, allowing flexible spectrum utilization by combining or puncturing subchannels, and extending the resource allocation field to indicate these new MRUs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing MRU patterns defined in 802.11be standard are used, then compatibility with current standards is maintained, but support for future large bandwidths (640 MHz or 480 MHz) is insufficient
Solution Approach 1:
The patent segments the large bandwidth (640 MHz or 480 MHz) into multiple 996-tone RUs and 484-tone RUs, forming composite MRU patterns. This segmentation allows the system to handle large bandwidths by combining smaller, standardized RU units, making the design manageable while supporting future bandwidth requirements.
Solution Approach 2:
The patent creates universal MRU patterns that can be applied across different bandwidth scenarios. The same MRU pattern design methodology (combining k×996-tone RUs and m×484-tone RUs) can be used for both 640 MHz and 480 MHz bandwidths, providing a multi-functional solution that adapts to various future bandwidth requirements.
2Adaptability or versatility
If new MRU patterns for 640 MHz and 480 MHz are designed, then support for future large bandwidth scenarios is improved, but compatibility with existing standards may be affected
Solution Approach 1:
The patent introduces dynamic parameters k and m that allow the MRU pattern to adapt to different bandwidth scenarios. By adjusting these parameters, the same basic MRU structure can dynamically support various bandwidths (640 MHz, 480 MHz, or even future extensions), ensuring both future-proofing and backward compatibility.
Solution Approach 2:
The patent changes the parameters of existing RU definitions (996-tone and 484-tone RUs) and their combination rules to create new MRU patterns. This parameter-based approach allows the system to maintain compatibility with existing RU definitions while creating new composite structures suitable for larger bandwidths.
3Ease of operation
If flexible spectrum utilization is implemented by combining or puncturing subchannels, then resource allocation flexibility is improved, but system complexity increases
Solution Approach 1:
The patent pre-defines MRU patterns with specific combinations of 996-tone and 484-tone RUs for different bandwidth scenarios. These preliminary configurations allow the system to quickly allocate resources without complex real-time calculations, reducing operational complexity while maintaining flexibility.
Solution Approach 2:
The patent introduces MRU as an intermediary layer between the physical subchannels and the logical resource allocation. This intermediary structure simplifies spectrum management by providing a standardized interface for combining or puncturing subchannels, reducing the complexity of direct subchannel manipulation.
Data Source
AI summary
This application provides a communication method. The method may be applied to a WLAN system supporting 802.11 series protocols such as a next-generation Wi-Fi protocol of IEEE 802.11ax like 802.11be, Wi-Fi 7, or EHT, and a next-generation protocol of 802.11be like Wi-Fi 8, or applied to a UWB-based wireless personal area network system and a sensing system. The method includes: Devices communicate with each other based on a frequency resource, where the frequency resource includes a multiple resource unit MRU, the MRU includes a k×996+m×484-tone MRU, k is an integer greater than or equal to 4, and m is equal to 0 or 1. An MRU is designed for a bandwidth greater than 320 MHz, to meet OFDMA transmission in a future large-bandwidth scenario.