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1. (WO2018182574) PROCESSES AND METHODS TO ENABLE DOWNLINK DATA TRANSMISSION OVER WIDE BANDWIDTH FOR THE CELL EDGE STATION

Pub. No.:    WO/2018/182574    International Application No.:    PCT/US2017/024454
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Wed Mar 29 01:59:59 CEST 2017
IPC: H04W 74/08
H04W 74/00
H04W 88/08
H04W 84/12
Applicants: INTEL CORPORATION
Inventors: FANG, Juan
PARK, Minyoung
AZIZI, Shahrnaz
Title: PROCESSES AND METHODS TO ENABLE DOWNLINK DATA TRANSMISSION OVER WIDE BANDWIDTH FOR THE CELL EDGE STATION
Abstract:
Methods and systems herein provide better downlink (DL) data throughput for cell-edge stations (CE STAs). The systems enable protection from a third-party collision during a wideband DL data transmission to the cell edge STA, when the wideband control frame, such as clear-to-send (CTS) or acknowledge (ACK), transmission from a cell edge STA cannot reach the AP. This process can be achieved by designing a new wideband control frame comprising: a legacy preamble sent over the primary 20 MHz channel that can be decoded by the legacy STAs, a new preamble sent over the primary 20 MHz channel that can be used to identify the new wideband control frame (this new preamble has the total signal bandwidth information for the rest of the packet following the new preamble); and duplicate legacy control packets set over the total bandwidth indicated in the new preamble (the legacy control packets can be decoded by the legacy STAs).