Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yujin Noh0
Dae Won Lee0
Date of Patent
November 13, 2018
0Patent Application Number
156675740
Date Filed
August 2, 2017
0Patent Citations Received
...
Patent Primary Examiner
Patent abstract
A wireless device generates a Legacy preamble, a 20 MHz Orthogonal Frequency Division Multiplexing (OFDM) symbol, and a Wake-Up (WU) signal portion. The Legacy Preamble includes a Legacy Short Training Field (L-STF), a Legacy Long Training Field (L-LTF) and a Legacy Signal (L-SIG) field. The 20 MHz OFDM symbol has a duration of 4 μs. The WU signal portion has a frequency bandwidth that is narrower than a frequency bandwidth of the Legacy preamble. The wireless device transmits a frame, which includes transmitting the Legacy preamble, transmitting the 20 MHz OFDM symbol immediately after transmitting the Legacy preamble, and transmitting the WU signal portion immediately after transmitting the 20 MHz OFDM symbol.
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