US Patent No. 10,462,791

COMMUNICATION METHOD AND COMMUNICATION DEVICE IN WIRELESS LAN SYSTEM THAT SUPPORTS MULTI-BANDWIDTH


Patent No. 10,462,791
Issue Date October 29, 2019
Title Communication Method And Communication Device In Wireless Lan System That Supports Multi-bandwidth
Inventorship Hee Jung Yu, Daejeon (KR)
Min Ho Cheong, Daejeon (KR)
Jae Seung Lee, Daejeon (KR)
Hyoung Jin Kwon, Daejeon (KR)
Sok Kyu Lee, Daejeon (KR)
Assignee ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)

Claim of US Patent No. 10,462,791

1. A communication method by a communication apparatus in a wireless local area network (WLAN) system, the method comprising:generating a physical frame including a plurality of time domain fields, and
transmitting the physical frame,
wherein the frequency domain repetition is applied to a first part of the plurality of time domain fields without being applied to a second part of the plurality of time domain fields when the frequency domain repetition is applied to the physical frame,
wherein the second part is different from the first part,
wherein the frequency domain repetition includes mapping a same information to a lower half of frequency subcarriers and an upper half of the frequency subcarriers, and
wherein a phase difference between a phase applied to information mapped to the lower half of the frequency subcarriers of the first part of the plurality of time domain fields and a phase applied to information mapped to the upper half of the frequency subcarriers of the first part of the plurality of time domain fields is 0 degree or 180 degree.