WLAN Header Field Configuration for MU-MIMO and FDMA Signals
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Solution Overview
Problem
Current WLAN systems, particularly in the IEEE 802.11ay standard, face challenges in optimizing signal transmission and reception due to the lack of distinct configuration for MU-MIMO and FDMA formats in the header field of Physical Protocol Data Units (PPDUs), leading to suboptimal performance in multi-user and channel allocation scenarios.
Innovation Solution
The method involves configuring the header field differently based on whether a PPDU is in MU-MIMO or FDMA format, with indicators and specific fields for stream or channel allocation information, allowing for optimized signal transmission and reception by distinguishing between formats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a unified header field configuration is used for both MU-MIMO and FDMA formats, then the system maintains simplicity in implementation, but the signal transmission performance is suboptimal for specific multi-user and channel allocation scenarios
Solution Approach 1:
The header field configuration is segmented into format-specific configurations: one set for MU-MIMO format and another for FDMA format. Each configuration contains tailored information elements optimized for its respective access mode, allowing the system to achieve optimal performance for each scenario while maintaining clear structural organization.
Solution Approach 2:
The system dynamically selects the appropriate header field configuration based on the PPDU format being transmitted. The header field structure adapts its content and organization according to whether MU-MIMO or FDMA is used, enabling the system to optimize signal transmission performance for each specific access mode while maintaining implementation feasibility through standardized selection logic.
2Productivity
If distinct header field configurations are created for MU-MIMO and FDMA formats, then the signal transmission performance is optimized for each format, but the system complexity increases
Solution Approach 1:
A single header field structure design serves multiple functions by supporting both MU-MIMO and FDMA formats through format-specific configurations. The same header field framework can be universally applied to different access modes, reducing overall system complexity while maintaining optimized performance for each format through appropriate configuration selection.
Data Source
AI summary
The present specification relates to a method for transceiving a signal by a station in a wireless LAN (WLAN) system and, more particularly, provides a method for transmitting or receiving a signal on the basis of a header field, which is differently configured depending on whether a Physical Protocol Data Unit (PPDU) format transmitted by a station is a multiuser-multiple input multiple output (MU-MIMO) format or a frequency division multiple access (FDMA) format, and a device therefor.