Invention Grant
- Patent Title: Method and apparatus for transmitting control information in wireless local area network using multi-channel
- Patent Title (中): 用于在无线局域网中使用多信道发送控制信息的方法和装置
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Application No.: US13818935Application Date: 2011-08-26
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Publication No.: US09078245B2Publication Date: 2015-07-07
- Inventor: Eun Sun Kim , Yong Ho Seok
- Applicant: Eun Sun Kim , Yong Ho Seok
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- International Application: PCT/KR2011/006313 WO 20110826
- International Announcement: WO2012/026779 WO 20120301
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04J11/00 ; H04J1/00 ; H04L1/02 ; H04W72/04 ; H04L1/00 ; H04L1/06 ; H04L5/00 ; H04L27/26 ; H04W28/18 ; H04W84/12

Abstract:
A method of transmitting control information in a WLAN system using a multi-channel obtained by aggregating a first sub-channel and a second sub-channel is provided. The method includes transmitting, by a transmitting station, a first physical (PHY) preamble over the first sub-channel, transmitting, by the transmitting station, a second PHY preamble over the second sub-channel, and transmitting, by the transmitting station, data symbols using N spatial streams transmitted over the first sub-channel and M spatial streams transmitted over the second sub-channel, wherein the first PHY preamble comprises control information necessary to demodulate and decode the data symbols transmitted over the N spatial streams, and the second PHY preamble comprises control information necessary to demodulate and decode the data symbols transmitted over the M spatial streams, and the first PHY preamble and the second PHY preamble are simultaneously transmitted, and the N and the M are different natural numbers.
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