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1. (WO2018201985) SYSTEM AND METHOD FOR HANDOVERS IN A DUAL CONNECTIVITY COMMUNICATIONS SYSTEM

Pub. No.:    WO/2018/201985    International Application No.:    PCT/CN2018/084810
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Sat Apr 28 01:59:59 CEST 2018
IPC: H04W 36/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
Inventors: TENNY, Nathan Edward
WANG, Xuelong
Title: SYSTEM AND METHOD FOR HANDOVERS IN A DUAL CONNECTIVITY COMMUNICATIONS SYSTEM
Abstract:
A method for operating a first access node in a dual connectivity (DuCo) handover includes receiving an event trigger for a combined event from a user equipment (UE), sending to a second access node, a combined instruction for primary secondary cell (PSCell) addition and a role change with the second access node in accordance with the event trigger, adding as the second access node as a PSCell, and indicating to the UE, a role change between the first access node and the second access node.