Patent ID: 11870628
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method performed by a station (STA) in a wireless local area network system, the method comprising:
receiving a physical protocol data unit (PPDU) comprising a legacy-signal (L-SIG) field;
determining whether the PPDU comprises a repeated L-SIG (RL-SIG) field which is a repeat of the L-SIG field, wherein the RL-SIG is contiguous to the L-SIG field; and
after determining that the PPDU comprises the RL-SIG field, determining whether a length field included in the L-SIG field is set to a value satisfying a condition that a remainder is zero when a value of the length field is divided by three (3), wherein the remainder is used to differentiate an extreme high throughput (EHT) PPDU from a high efficiency (HE) PPDU,
wherein the PPDU is determined as the EHT PPDU based on the remainder having a value of zero (0), and the PPDU is determined as the HE PPDU based on the remainder having a non-zero value.