STABLE SERVICE WITH MULTIPLE DATA SUBSCRIPTIONS

WIPO Patent Application WO/2021/237698

A1

A user equipment (UE) may work in a first data subscription (DS) (e.g., non-default data subscription (non-DDS) in a first radio access technology (e.g., 4G LTE) and also in a second DS (e.g., DDS) in a second RAT (e.g., 5G NR). In high mobility scenarios, much power can be consumed due to frequent cell reselection in both RATS. Also, services in one or both RATs may be less reliable when radio hardware of the UE is not usable by both DDSes at the same time. To address this issue, when the first DS is in idle mode, unconditional call forwarding may be set on first DS to the second DS, and the first DS can be deactivated. In this way, power consumption is reduced by deactivation of first DS, and the UE is still capable of receiving mobile calls due to setting of the call forwarding.

LIU GUOJING (US)
HUI CHAOFENG (US)
WANG DONGSHENG (US)
SHI DUNFA (US)
ZHANG FOJIAN (US)
LU XIAOMENG (US)
CHEN XUESONG (US)

PCT/CN2020/093367

December 02, 2021

May 29, 2020

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QUALCOMM INC (US)
LIU GUOJING (CN)
HUI CHAOFENG (CN)
WANG DONGSHENG (CN)
SHI DUNFA (CN)
ZHANG FOJIAN (CN)
LU XIAOMENG (CN)
CHEN XUESONG (CN)

H04W4/00

CN105993182A	2016-10-05
US20100062771A1	2010-03-11
CN105453635A	2016-03-30
US20170289958A1	2017-10-05
CN108353320A	2018-07-31
CN103220741A	2013-07-24

SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)

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