Title:
NETWORK SELECTION METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/205453
Kind Code:
A1
Abstract:
Provided in the present application is a network selection method. The method can comprise: a mobility management network element of a first upper-layer network acquiring second indication information, wherein the second indication information indicates whether a first lower-layer network can provide an Internet protocol multimedia subsystem (IMS) voice service by means of a packet-switched (PS) session accessed by a new radio (NR) cell; determining first indication information according to the second indication information, wherein the first indication information indicates whether the first upper-layer network can support the provision of the IMS voice service by means of a PS session accessed by a non-third generation partnership project (N3GPP); and sending the first indication information to a terminal device. By means of the solution of the present application, a terminal device can select, according to indication information, a lower-layer network capable of providing an IMS voice service, and access same, thereby ensuring the quality of service when the terminal device uses the IMS voice service in an upper-layer network.
Inventors:
ZHU QIANGHUA (CN)
SHI SHUFENG (CN)
SHI SHUFENG (CN)
Application Number:
PCT/CN2021/085392
Publication Date:
October 06, 2022
Filing Date:
April 02, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W4/06
Foreign References:
| CN111567068A | 2020-08-21 | |||
| CN110583047A | 2019-12-17 |
Other References:
QUALCOMM INCORPRORATED, ERICSSON, NOKIA, NOKIA SHANGHAI BELL: "Support for normal IMS voice over SNPN", 3GPP DRAFT; S2-2100804, vol. SA WG2, 18 February 2021 (2021-02-18), pages 1 - 5, XP052173306
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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