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1. (WO2018202545) COMMUNICATIONS DEVICE, INFRASTRUCTURE EQUIPMENT, WIRELESS COMMUNICATIONS NETWORK AND METHODS

Pub. No.:    WO/2018/202545    International Application No.:    PCT/EP2018/060754
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Fri Apr 27 01:59:59 CEST 2018
IPC: H04W 36/00
H04W 36/02
Applicants: SONY CORPORATION
SONY EUROPE LIMITED
Inventors: SHARMA, Vivek
MARTIN, Brian Alexander
WAKABAYASHI, Hideji
TSUDA, Shinichiro
Title: COMMUNICATIONS DEVICE, INFRASTRUCTURE EQUIPMENT, WIRELESS COMMUNICATIONS NETWORK AND METHODS
Abstract:
A method is performed in a first infrastructure equipment for a handover of a wireless communications device from the first infrastructure equipment as a source to a second infrastructure equipment as a target. The method comprises maintaining a mapping between a plurality of packet bearers and a data radio bearer for the wireless communications device, each of the plurality of packet bearers being configured to provide a specified quality of service, determining that the wireless communications device should handover from the first infrastructure equipment to the second infrastructure equipment, determining that the second infrastructure equipment does not support the mapping of the plurality of packet bearers to the data radio bearer, and providing an indication of a mapping of the plurality of packet bearers for the second infrastructure equipment after handover to one of a core network equipment and the second infrastructure equipment for configuration of at least one of the radio bearer and the plurality of packet bearers at the second infrastructure equipment after the handover. As a result handover can be performed when the second infrastructure equipment does not support mapping of a plurality of packet bearers to a data radio bearer.