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1. (WO2018084995) NEW RADIO (NR) RANDOM ACCESS PROCEDURE (RACH) TIMING DESIGNS

Pub. No.:    WO/2018/084995    International Application No.:    PCT/US2017/055638
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Sat Oct 07 01:59:59 CEST 2017
IPC: H04W 74/08
Applicants: QUALCOMM INCORPORATED
Inventors: LY, Hung
XU, Hao
CHEN, Wanshi
JI, Tingfang
WANG, Renqiu
GAAL, Peter
AMINZADEH GOHARI, Amir
Title: NEW RADIO (NR) RANDOM ACCESS PROCEDURE (RACH) TIMING DESIGNS
Abstract:
A configurable new radio (NR) RACH procedure that may be executed by a UE and a base station is disclosed. A first message can be transmitted, in an inactive or idle state, a on a physical random access channel, where the first message includes a random access preamble. A second message can be received on a downlink channel in response to the first message, where the second message includes a temporary cell radio network temporary identifier and an uplink grant for the user equipment. A request can be transmitted on an uplink channel based on the uplink grant. A common search space of a downlink control channel can be monitored, such as for an acknowledgement message or a negative acknowledgement message corresponding to the request and identifiable based on the temporary cell radio network temporary identifier.