US 11,722,349 B2
Transmission method and transmission apparatus for packet format detection
Lei Huang, Singapore (SG); Michael Hong Cheng Sim, Singapore (SG); and Yoshio Urabe, Nara (JP)
Assigned to Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Feb. 9, 2022, as Appl. No. 17/668,107.
Application 17/668,107 is a continuation of application No. 16/825,863, filed on Mar. 20, 2020, granted, now 11,277,293.
Application 16/825,863 is a continuation of application No. 15/933,173, filed on Mar. 22, 2018, granted, now 10,637,706, issued on Apr. 28, 2020.
Application 15/933,173 is a continuation of application No. PCT/JP2016/004300, filed on Sep. 21, 2016.
Claims priority of application No. 2015-214244 (JP), filed on Oct. 30, 2015.
Prior Publication US 2022/0166657 A1, May 26, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 27/26 (2006.01)
CPC H04L 27/2647 (2013.01) [H04L 27/2602 (2013.01); H04L 27/2603 (2021.01); H04L 27/2613 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A communication apparatus, comprising:
circuitry, which, in operation, generates a high efficiency (HE) physical protocol data unit (PPDU) containing a first orthogonal frequency division multiplexing (OFDM) symbol in a first HE PPDU format or in a second HE PPDU format,
wherein presence of a high efficiency signal field B (HE-SIG-B) depends on a second OFDM symbol following the first OFDM symbol, the second OFDM symbol having same data bits as the first OFDM symbol of the HE PPDU in the first HE PPDU format, and
wherein a first modulation mapping used for the first OFDM symbol is different from a second modulation mapping used for the second OFDM symbol; and
a transmitter, which, in operation, transmits the generated HE PPDU.