Invention Grant
- Patent Title: NDP packet format for a communication protocol with multiple PHY modes
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Application No.: US14612176Application Date: 2015-02-02
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Publication No.: US09621322B2Publication Date: 2017-04-11
- Inventor: Hongyuan Zhang
- Applicant: Marvell World Trade Ltd.
- Applicant Address: BB St. Michael
- Assignee: Marvell World Trade Ltd.
- Current Assignee: Marvell World Trade Ltd.
- Current Assignee Address: BB St. Michael
- Main IPC: H04K1/10
- IPC: H04K1/10 ; H04L5/00 ; H04L27/26 ; H04L29/06 ; H04W84/12

Abstract:
In a method for generating a null data packet (NDP) sounding packet for transmission via a communication channel, a signal field and one or more long training fields are generated. The signal field and the long training fields are modulated using a plurality of orthogonal frequency division multiplexing (OFDM) symbols. Symbol duration of each OFDM symbol of the plurality of OFDM symbols is at least 8 μs. The NDP sounding packet is generated to include the plurality of OFDM symbols. The NDP sounding packet omits a data payload portion.
Public/Granted literature
- US20150172026A1 SOUNDING PACKET FORMAT FOR LONG RANGE WLAN Public/Granted day:2015-06-18
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