320 MHz PPDU Multi-RU Allocation Logic

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Solution Overview

Problem

Current wireless communication standards face challenges in efficiently managing 240 MHz transmissions within the 320 MHz physical layer protocol data unit (PPDU) for Extremely High Throughput (EHT) stations, particularly in combining multiple resource units (RUs) for Orthogonal Frequency-Division Multiple Access (OFDMA) and non-OFDMA transmissions to meet bandwidth demands while ensuring compatibility with legacy devices.

Innovation Solution

The implementation of 320 MHz PPDU logic circuitry that generates multi-RUs by combining multiple large RUs, such as 240 tone RUs, to form larger RUs assignable to EHT stations, enabling the creation of 240 MHz MRUs for both OFDMA and non-OFDMA 320 MHz EHT PPDUs, allowing for flexible bandwidth allocation and transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple resource units are combined to form large RUs for 240 MHz transmissions, then bandwidth efficiency and data throughput are improved, but device complexity and standard compatibility become more difficult to manage

Engineering Contradiction:

Improvebandwidth efficiencyVSAvoidstandard compatibility

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The 240 MHz bandwidth is segmented into multiple 996-tone resource units that can be individually allocated and combined. This segmentation allows the system to achieve high bandwidth efficiency through flexible RU combinations while maintaining compatibility with existing standards by using standardized RU building blocks that legacy devices can recognize and process independently.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Multiple resource units are nested within the 320 MHz PPDU framework, where smaller standardized RUs are contained within the larger transmission structure. This nesting approach enables large RU formations for high throughput while preserving the hierarchical structure that ensures compatibility with legacy devices operating at lower bandwidths.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Productivity

If 320 MHz PPDU framework is implemented to meet escalating bandwidth demands, then data throughput capability is improved, but interoperability with legacy devices deteriorates

Engineering Contradiction:

Improvedata throughput capabilityVSAvoidinteroperability

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The 320 MHz PPDU framework is designed with universal resource unit structures that can serve multiple functions - supporting both legacy devices operating at lower bandwidths and EHT stations requiring full 320 MHz throughput. The same RU structures can be allocated to different device types, enabling the system to achieve high data throughput for capable devices while maintaining interoperability with legacy equipment through standardized interface definitions.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20210329637A1Methods and arrangements for large resource unit allocation

Publication Date: 2021.10.21 INTEL CORP

AI summary

Logic to generate a 320 megahertz (MHz) extremely high throughput (EHT) physical layer protocol data unit (PPDU) comprising a multi-resource unit (MRU). Logic to generation of a non-orthogonal frequency division multiple access (non-OFDMA) 320 MHz EHT PPDU, wherein the MRU comprises a 240 MHz multi-MRU, the 240 MHz MRU comprising at least two contiguous 996 tone resource units (RUs). Logic to generation of an OFDMA 320 MHz EHT PPDU, wherein the MRU comprises at least one 996 tone RU and one 484 tone RU. Logic to cause the transmission of the 320 MHz EHT PPDU. And logic to receive and decode the 320 MHz EHT PPDU.