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Title:
CALL SETUP METHOD AND TERMINAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/153274
Kind Code:
A1
Abstract:
A call setup method applicable to a terminal device and the corresponding terminal device. The method comprises: sending a first request message to a network device of a first communication network, the terminal device currently residing in a cell of the first communication network, the first request message comprising an emergency call indication information; receiving a first response message sent by the network device, the first response message comprising the carrier frequency parameter of a second communication network; measuring first cells, the first cells comprising at least one cell of the second communication network, both the carrier frequency and carrier frequency parameter of each cell of the first cells satisfying preset relations; determining whether a second cell supports an emergency call service, the second cell being one cell of the first cells; when the second cell supports the emergency call service, residing in the second cell; sending a second request message to the network device of the second communication network, the second request message being used for requesting the setup of an emergency call.

Inventors:
YUAN KAI (CN)
DUAN XIAOYAN (CN)
ZHANG BO (CN)
SUI FEIFEI (CN)
DING MING (CN)
Application Number:
PCT/CN2018/075796
Publication Date:
August 30, 2018
Filing Date:
February 08, 2018
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W4/90; H04W24/04; H04W76/10; H04W76/19
Domestic Patent References:
WO2010120689A22010-10-21
Foreign References:
CN101931927A2010-12-29
CN102349328A2012-02-08
CN105554857A2016-05-04
CN101990184A2011-03-23
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