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Patent Searching and Data


Title:
UE AND COMMUNICATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/198717
Kind Code:
A1
Abstract:
This user equipment (UE) includes a control unit configured to be able to execute, when a first urgent call connection attempt that uses a packet switched (PS) domain fails, a second urgent call connection attempt that uses the PS domain. The UE receives a service reject message as the failure of the first urgent call connection attempt that uses the PS domain, uses a first access network for the first urgent call connection attempt, and uses a second access network for the second urgent call connection attempt. Accordingly, provided is a control method that is to be executed by user equipment, an access network device, a core network device, and an IMS device so that the user equipment is connected to a network suitable for an urgent notification service in a 5th generation (5G) mobile communication system which is a next generation mobile communication system.

Inventors:
TAKAKURA Tsuyoshi
ARAMOTO Masafumi
Application Number:
JP2019/015487
Publication Date:
October 17, 2019
Filing Date:
April 09, 2019
Export Citation:
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Assignee:
SHARP KABUSHIKI KAISHA (1 Takumi-cho, Sakai-ku Sakai Cit, Osaka 22, 〒5908522, JP)
FG INNOVATION COMPANY LIMITED (Flat 2623, 26/F Tuen Mun Central Square 22 Hoi Wing Road, Tuen Mun, New Territorie, HK ., CN)
International Classes:
H04W76/50; H04M3/00; H04M11/04; H04W36/14; H04W48/18; H04W80/10
Foreign References:
JP2016103778A2016-06-02
JP2010528494A2010-08-19
US20100240338A12010-09-23
JP2013258486A2013-12-26
Other References:
"Emergency calls in Standalone NR", 3GPP TSG RAN WG2 #101 R2-1802966, 2 March 2018 (2018-03-02), XP051400325
Attorney, Agent or Firm:
FUJIMOTO Eisuke et al. (KA111 Building 5F 1-1, Kandaawaji-cho 1-chome, Chiyoda-k, Tokyo 63, 〒1010063, JP)
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