US Patent:
20200329494, Oct 15, 2020
Inventors:
Bishwarup Mondal - San Ramon CA, US
Prerana Rane - Santa Clara CA, US
Yongjun Kwak - Portland OR, US
Dae Won Lee - Portland OR, US
Carlos Aldana - Santa Clara CA, US
Salvatore Talarico - Los Gatos CA, US
International Classification:
H04W 74/08
H04W 48/16
H04W 72/04
Abstract:
An apparatus for use in a base station includes processing circuitry coupled to a memory. To configure the base station for channel access in a New Radio (NR) unlicensed (NR-U) network operating in an unlicensed spectrum, the processing circuitry is to perform an LBT procedure for a transmission occasion of a plurality of transmission occasions within a Discovery Measurement Timing Configuration (DMTC) window of a communication channel in the unlicensed spectrum. The transmission occasion is configured within a slot of a plurality of slots forming the DMTC window. A Discovery Reference Signal (DRS) is encoded for transmission to a UE on the communication channel, based on the successful completion of the LBT procedure. The DRS includes a PSS, a SSS, and a PBCH. A RACH procedure is performed with the UE, the RACH procedure initiated based on the PSS, the SSS, and the PBCH.