17922943. METHOD AND DEVICE FOR APPLYING SUBCARRIER-SPECIFIC PHASE ROTATION TO BROADBAND IN WIRELESS LAN SYSTEM simplified abstract (LG ELECTRONICS INC.)
METHOD AND DEVICE FOR APPLYING SUBCARRIER-SPECIFIC PHASE ROTATION TO BROADBAND IN WIRELESS LAN SYSTEM
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METHOD AND DEVICE FOR APPLYING SUBCARRIER-SPECIFIC PHASE ROTATION TO BROADBAND IN WIRELESS LAN SYSTEM - A simplified explanation of the abstract
This abstract first appeared for US patent application 17922943 titled 'METHOD AND DEVICE FOR APPLYING SUBCARRIER-SPECIFIC PHASE ROTATION TO BROADBAND IN WIRELESS LAN SYSTEM
Simplified Explanation
The patent application proposes a method and device for receiving a PPDU (Physical Protocol Data Unit) in a wireless LAN system. The reception STA (Station) receives a PPDU from a transmission STA through a broadband and decodes it. The PPDU consists of a legacy preamble and two signal fields.
- The legacy preamble and the first and second signal fields are generated based on a first and a second phase rotation value.
- In the case of a 320 MHz broadband, the first phase rotation value is [1 −1 −1 −1 1 −1 −1 −1 −1 1 1 1 −1 1 1 1].
- Each element of the first phase rotation value is applied to each 20 MHz band of the 320 MHz broadband.
- Each element of the second phase rotation value is applied to each subcarrier of the 320 MHz broadband.
Potential applications of this technology:
- Wireless LAN systems
- Communication networks
- Internet of Things (IoT) devices
Problems solved by this technology:
- Efficient reception of PPDU in a wireless LAN system
- Accurate decoding of PPDU signals
- Optimization of phase rotation values for different broadband configurations
Benefits of this technology:
- Improved performance and reliability of wireless LAN systems
- Enhanced data transmission and reception capabilities
- Increased efficiency and speed of communication networks
Original Abstract Submitted
Proposed are a method and a device for receiving a PPDU in a wireless LAN system. Specifically, a reception STA receives a PPDU from a transmission STA through a broadband and decodes the PPDU. The PPDU includes a legacy preamble and a first and a second signal field. The legacy preamble and the first and second signal fields are generated on the basis of a first and a second phase rotation value. When the broadband corresponds to a 320 MHz band, the first phase rotation value is [1 −1 −1 −1 1 −1 −1 −1 −1 1 1 1 −1 1 1 1]. An element of the first phase rotation value is applied to each 20 MHz band of the 320 MHz band. An element of the second phase rotation value is applied to each subcarrier of the 320 MHz band.
