Invention Grant
US09439161B2 Physical layer design for uplink (UL) multiuser multiple-input, multiple-output (MU-MIMO) in wireless local area network (WLAN) systems
有权
用于无线局域网（WLAN）系统中的上行链路（UL）多用户多输入多输出（MU-MIMO）的物理层设计
- Patent Title: Physical layer design for uplink (UL) multiuser multiple-input, multiple-output (MU-MIMO) in wireless local area network (WLAN) systems
- Patent Title (中): 用于无线局域网（WLAN）系统中的上行链路（UL）多用户多输入多输出（MU-MIMO）的物理层设计
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Application No.: US14332301Application Date: 2014-07-15
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Publication No.: US09439161B2Publication Date: 2016-09-06
- Inventor: Sameer Vermani , Rahul Tandra , Didier Johannes Richard Van Nee , Albert Van Zelst , Hemanth Sampath , Bin Tian
- Applicant: QUALCOMM Incorporated
- Agency: Patterson & Sheridan, LLP
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W56/00 ; H04B7/04 ; H04B7/06 ; H04L27/26 ; H04W84/12
Abstract:
Certain aspects of the present disclosure provide methods and apparatus for uplink (UL) multiuser multiple-input, multiple-output (MU-MIMO) transmissions in a High Efficiency WLAN (HEW) system. One example method generally includes generating a packet having a preamble portion and transmitting the packet. The preamble portion typically includes a long training field (LTF); a first signal (SIG) field subsequent to the LTF; one or more other LTFs located subsequent to the first SIG field; and at least one second SIG field, wherein all SIG fields in the preamble portion, other than the first SIG field, are subsequent to the one or more other LTFs. Another example method generally includes receiving, from an apparatus, a packet having a preamble portion comprising tone-interleaved LTFs; and performing frequency offset adjustment on the packet based on the tone-interleaved LTFs.
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