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Title:
緊急通話のための装置、方法、およびコンピュータプログラム
Document Type and Number:
Japanese Patent JP7169379
Kind Code:
B2
Abstract:
An apparatus comprising: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: determine that a user equipment is to switch from using a first radio access technology to using a second radio access technology to perform an emergency call; determine that the user equipment supports access to a core network via a cell of the second radio access technology; and cause the user equipment to switch from using the first radio access technology to the second radio access technology.

Inventors:
Won Song Hwang
Application Number:
JP2020572888A
Publication Date:
November 10, 2022
Filing Date:
June 25, 2018
Export Citation:
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Assignee:
Nokia Technologies Osake Yuichia
International Classes:
H04W48/18; H04W4/90; H04W76/50; H04W88/06
Other References:
Samsung R & D Institute UK, Nokia, Nokia Shanghai Bell, Intel,Change "N1 mode radio capability" to "N1 mode capability for 3GPP access",3GPP TSG CT WG1 #111 C1-183524,フランス,3GPP,2018年05月28日
SHARP, Nokia, Nokia Shanghai Bell, Qualcomm Incorporated,Emergency call in single registration mode,3GPP TSG CT WG1 #111 C1-183840,フランス,3GPP,2018年05月28日
Attorney, Agent or Firm:
Shinichiro Tanaka
Yoshi Kazuhiko Ta
Hiroyuki Suda
Fumiaki Otsuka
Takayoshi Nishijima
Hiroshi Uesugi
Naoki Kondo
Takeo Nasu