Patent ID: 9705622
Date: 2017-07-11
CPC Classifications: H04J,H04L

Claim:
1. A method of a communication device in a wireless system, the method comprising: generating a first High Efficiency Physical Layer Protocol Data Unit (HE PPDU) including a Non-High-Throughput (Non-HT) signal (L-SIG) field, a High Efficiency signal (HE-SIG) field, and a data field, wherein the data field includes an Orthogonal Frequency Division Multiplexing (OFDM) symbol including padding bits; appending an extension at an end of the first HE PPDU to increase an available processing time, the extension having a non-zero signal strength; and transmitting a second HE PPDU including the first HE PPDU and the extension, wherein the L-SIG field includes a first length indication of the second HE PPDU, and wherein the HE-SIG field includes a second length indication for a duration of the extension to avoid ambiguity of the extension.