Domain selection method and server

A server and user terminal technology, applied in the communication field, can solve problems such as poor user experience, long call connection time, and increased call delay

Inactive Publication Date: 2017-09-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Because when calling the called number, it is necessary to initiate a call from the IMS network first, and then call to the CDMA network when the call fails. Therefore,

Method used

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  • Domain selection method and server
  • Domain selection method and server
  • Domain selection method and server

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Embodiment Construction

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0052] An embodiment of the present invention provides a domain selection method, which can be used for a Service Centralization and Continuity Application Server (SCC AS), and the SCC AS supports a MAP interface and has access The function of the mobile switching center (VisitedMobile Switching Center, vMSC) network element can interact with the HLR in the CDMA network. Such as figure 2 As shown, the domain selection method includes:

[0053] Step 201. Receive a registration information query request sent by the first CSCF, where the registration information query request includes the identifier of the called user terminal.

[0054] For example, the identifier of the user terminal may be the number of the user terminal, an IP address, or other codes that can uniquely ident...

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Abstract

The embodiment of the invention discloses a domain selection method. The method comprises the following steps: receiving a registration information inquiry request sent by a first call session control function network element CSCF, wherein the registration information inquiry request comprises an identifier of a user terminal that is used as the called; inquiring a registered network of the user terminal according to the identifier of the user terminal; when the user terminal is registered in an IP multimedia subsystem IMS network, sending a first registration information inquiry feedback message to the first CSCF; or when the user terminal is registered in a code division multiple access CDMA network, sending a second registration information inquiry feedback message to the first CSCF. Further, the embodiment of the invention further discloses a domain selection server.

Description

technical field [0001] The invention relates to voice communication technology in the communication field, in particular to a domain selection method and server. Background technique [0002] With the development of communication technology, IP Multimedia Subsystem (IP Multimedia Subsystem, IMS) has become the most important part of 4G network, among which VoLTE (Voice over LTE) based on IMS is the Third Generation Partnership Project (Third Generation Partnership Project, 3GPP) on the long-term evolution (Long Term Evolution, LTE) network voice solution recognized as the main development direction. [0003] In the prior art, due to the insufficient network coverage in the early stage of LTE network deployment, when a VoLTE terminal is equipped with C-mode, that is, when the terminal can support Code Division Multiple Access (CDMA) frequency band, the terminal may be separated between the CDMA network and the LTE network. Frequent switching between the terminals leads to fr...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/715H04W4/16H04W36/14H04W60/00
CPCH04L45/04H04L65/1016H04L65/1073H04L65/1096H04W4/16H04W36/14H04W60/00H04L65/40
Inventor 任国华瞿敏杨维童锦松
Owner ZTE CORP
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