Patent ID: 9363122
Filing Date: 2016-06-07
CPC Classification: H04L

Claim Text:
1. A method for transmitting a training field in a wireless Local Area Network (LAN) system, the method comprising: generating a physical (PHY) protocol data unit (PPDU); and transmitting the PPDU, wherein the PPDU includes a first group of at least one long training field (LTF), a first data segment unit, a second group of at least one LTF and a second data segment unit, wherein the first group of at least one LTF is followed by the first data segment unit, wherein the first data segment unit is followed by the second group of at least one LTF, wherein the second group of at least one LTF is followed by the second data segment unit, wherein the second group of at least one LTF includes at least one additional LTF, wherein the first group of at least one LTF is used for decoding of the first data segment unit, wherein the second group of at least one LTF is used for decoding of the second data segment unit, wherein PPDU further includes additional LTF indication information to indicate that the at least one additional LTF is included in the PPDU, wherein the additional LTF indication information is included in a signal (SIG) field in the PPDU, and wherein the additional LTF indication information indicate that the at least one additional LTF is included in the PPDU based on a modulation method for the SIG field.