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1. (WO2017172026) MU-MIMO DYNAMIC BANDWIDTH SELECTION

Pub. No.:    WO/2017/172026    International Application No.:    PCT/US2017/015835
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Wed Feb 01 00:59:59 CET 2017
IPC: H04L 5/00
H04L 27/00
Applicants: QUALCOMM INCORPORATED
Inventors: NAIR, Madhavan
BALIGANAPALLI NAGARAJU, Pradeep
GAO, Qinghai
Title: MU-MIMO DYNAMIC BANDWIDTH SELECTION
Abstract:
Apparatuses and methods are disclosed that may allow a wireless device to dynamically select a bandwidth for MU-MIMO communications. A wireless device may transmit, on each of a plurality of wireless channels, a clear-to-send-to-self (CTS2S) frame that reserves medium access on a number of wireless channels and/or confirms the continued availability of the wireless channels. The bandwidth for a subsequent sounding operation may be based on the bandwidth used to transmit the CTS2S frames. Thereafter, the wireless device may transmit one or more MU-MIMO data frames to a number of other wireless devices using the selected bandwidth.