Patent ID: 9544030
Date: 2017-01-10
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method for transmitting data by a transmitter in a wireless local area network, the method comprising: determining a type of a physical layer protocol data unit (PPDU) based on a number of receivers to receive the PPDU; if the number of receivers is equal to one, transmitting a single user (SU)-type PPDU to a single receiver; and if the number of receivers is greater than one, transmitting a multi user (MU)-type PPDU to a plurality of receivers, wherein the SU-type PPDU includes a single signal field, a first SU long training field (LTF), a second SU LTF and a SU data portion; and wherein the MU-type PPDU includes two signal fields, a first MU LTF, a second MU LTF and a MU data portion, the two signal fields including a first MU signal field and a second MU signal field.