Invention Grant
- Patent Title: Method for transmitting and receiving data unit based on uplink multiple user multiple input multiple output transmission and apparatus for the same
- Patent Title (中): 基于上行链路多用户多输入多输出传输的发送和接收数据单元的方法及其设备
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Application No.: US14126393Application Date: 2012-02-23
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Publication No.: US09203586B2Publication Date: 2015-12-01
- Inventor: Hyang Sun You , Ill Soo Sohn , Yong Ho Seok , Jong Hyun Park
- Applicant: Hyang Sun You , Ill Soo Sohn , Yong Ho Seok , Jong Hyun Park
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Dentons US LLP
- International Application: PCT/KR2012/001372 WO 20120223
- International Announcement: WO2012/173326 WO 20121220
- Main IPC: H04L27/00
- IPC: H04L27/00 ; H04L5/00 ; H04B7/04 ; H04W84/12 ; H04L27/26
Abstract:
In an aspect, a method of receiving a data unit, performed by an Access Point (AP), in a Wireless LAN (WLAN) system is provided. The method includes transmitting a signal protection frame, the signal protection frame comprising a group ID field indicating a Multiple Input Multiple Output (MIMO) transmission STA group including a first station (STA) and a second STA; and, a spatial stream field indicating a number of spatial streams allocated to each of member STAs included in the MIMO transmission STA group; receiving a first preamble for a first data unit from the first STA; receiving a second preamble for a second data unit from the second STA; and simultaneously receiving the first data unit from the first STA and the second data unit from the second STA.
Public/Granted literature
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