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1. (WO2018085762) METHODS FOR CONTROLLING RACH-LESS MOBILITY PROCEDURES

Pub. No.:    WO/2018/085762    International Application No.:    PCT/US2017/060142
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Tue Nov 07 00:59:59 CET 2017
IPC: H04W 36/32
H04W 36/08
H04W 72/04
Applicants: KYOCERA CORPORATION
COMSTOCK, David
Inventors: COMSTOCK, David
Title: METHODS FOR CONTROLLING RACH-LESS MOBILITY PROCEDURES
Abstract:
Various techniques for performing RACH-less mobility procedures are disclosed. An uplink grant is provided to the UE device so the UE device can transmit an uplink message to a target base station. In response to receiving the uplink message, the target base station transmits a radio resource allocation to the UE device via the PDCCH. The radio resource allocation can be a downlink assignment or an uplink grant. Upon receipt of the radio resource allocation, an indication that the radio resource allocation has been received is sent from a Media Access Control (MAC) protocol layer of the UE device to a protocol layer that is higher than the MAC protocol layer. The higher protocol layer of the UE device determines when the RACH-less mobility procedure has been completed, based at least partially on when the radio resource allocation is received from the target base station.