02-01-2020 дата публикации
Номер: US20200007373A1
Принадлежит:
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. 1generating a Legacy preamble having a first bandwidth, the Legacy preamble including a Legacy Short Training Field (L-STF), a Legacy Long Training Field (L-LTF) and a Legacy Signal (L-SIG) field;generating a Wake-Up (WU) signal portion having a second bandwidth that is less than and inside the first bandwidth; and transmitting, using the first bandwidth, the Legacy preamble, including transmitting the L-SIG field at a first power level, and', 'transmitting, using the second bandwidth, the WU signal portion after transmitting the Legacy preamble and at a second power level higher than the first power level., 'transmitting a frame including the legacy preamble and the WU signal portion, transmitting the frame including. A method performed by a wireless device, the method comprising: This application is a continuation of U.S. application Ser. No. 16/134,728, filed Sep. 18, 2018, which is a continuation of U.S. application Ser. No. 15/667,574, filed Aug. 2, 2017, now U.S. Pat. No. 10,129,064, which claims the benefit of U.S. Provisional Patent Application No. 62/370,145, filed Aug. 2, 2016, and U.S. Provisional Patent Application No. 62/371,095, filed Aug. 4, 2016, which are incorporated by reference herein in their entireties.The technology described herein ...
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