Physical-Layer Control Mechanism for 802.11ay Data Frame Configuration
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Solution Overview
Problem
Existing physical-layer control mechanisms in legacy WLAN standards, such as IEEE 802.11ad, are unable to support the new physical-layer data frame format required by the second-generation 802.11ay standard, which necessitates a new control mechanism to maintain high data rate compliance.
Innovation Solution
A physical-layer control mechanism is implemented using an enhanced directional multi-gigabit header in wireless local area networks, allowing for the reception and decoding of data frames compliant with the 802.11ay standard, which includes configurations for single and multiple data units, and supports channel aggregation and compatibility with legacy devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the existing physical-layer control mechanism from legacy standards (e.g., 802.11ad) is used, then device compatibility and simplicity are maintained, but it cannot support the new physical-layer data frame format required by 802.11ay for high data rates
Solution Approach 1:
The physical-layer data frame is segmented into distinct fields including legacy compatibility fields (for backward compatibility) and new enhanced fields (for 802.11ay high data rate support). The header is divided into legacy header portions and enhanced directional multi-gigabit header portions, allowing legacy devices to process compatible segments while enhanced devices utilize the full structure for high-speed communication.
Solution Approach 2:
The physical-layer data frame structure is designed to serve multiple functions: it maintains compatibility with legacy 802.11ad devices through included legacy fields, while simultaneously supporting the enhanced 802.11ay data frame format for high data rate transmission. The same frame structure can be processed by both legacy and enhanced devices depending on their capabilities.
2Productivity
If a new physical-layer data frame format is introduced for 802.11ay, then support for channel aggregation and high data rates is achieved, but the complexity of the control mechanism increases
Solution Approach 1:
The enhanced control mechanism divides the data frame into clearly defined segments with specific functions. Each field (legacy header, enhanced header, data units) has a defined purpose and structure, making the complex format more manageable. The segmentation allows devices to process only the necessary portions based on their capabilities.
Solution Approach 2:
The physical-layer data frame format incorporates dynamic elements that adapt to different transmission scenarios. The frame structure can accommodate varying numbers of data units, different channel aggregation configurations, and adjustable field lengths based on the specific communication requirements, allowing the system to optimize performance while managing complexity.
Data Source
AI summary
Embodiments described herein provide a method for providing a physical-layer control mechanism in accordance with a wireless local area network communication protocol allowing a high data rate. At a wireless receiver, a physical-layer data frame may be received compliant with the wireless local area network communication protocol. When the physical-layer data frame includes only one data unit, a length of an enhanced directional multi-gigabit header from a header associated with the physical-layer data frame may be obtained, and the enhanced directional multi-gigabit header from the physical-layer data frame may be enhanced based on the length. When the physical-layer data frame includes more than one data unit, a first length of a first data unit may be obtained from a first header associated with the first data unit, and the first data unit may be identified from the data frame based on the first length.