Title:
VOICE HANDOVER METHOD AND DEVICE, TERMINAL AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/196785
Kind Code:
A1
Abstract:
Disclosed is a voice handover method, comprising: an access and mobility management function (AMF) receiving a handover request sent by a base station, a handover-to-circuit-switched-domain instruction being carried in the handover request; the AMF obtaining packet data unit (PDU) session indicator information; and on the basis of the PDU session indicator information, the AMF requesting session information from a session management function (SMF) corresponding to the PDU session indicator information. Also disclosed are a voice handover device, a terminal, and a storage medium.
Inventors:
LI ZHENDONG (CN)
Application Number:
PCT/CN2019/081722
Publication Date:
October 17, 2019
Filing Date:
April 08, 2019
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H04W36/00
Foreign References:
| CN107580324A | 2018-01-12 | |||
| CN107018542A | 2017-08-04 |
Other References:
3GPP: "3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Procedures for the 5G System; Stage 2 (Release 15)", 3GPP TS 23.502 V15.0.0, 22 December 2017 (2017-12-22), pages 1 - 258, XP055632069
"LS on support of Voice Service Continuity from 5G System to UTRAN CS", 3GPP TSG-SA WG1 MEETING #81 S1-180595, 26 February 2018 (2018-02-26), XP051394535
"LS on support of Voice Service Continuity from 5G System to UTRAN CS", 3GPP TSG-SA WG1 MEETING #81 S1-180595, 26 February 2018 (2018-02-26), XP051394535
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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