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Call routing method and related network element

A routing and network technology, applied in the routing method of calls and related network elements, can solve the problem of long connection time of the called party

Inactive Publication Date: 2016-08-03
CHINA MOBILE GRP BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] The embodiment of the present invention provides a call routing method and related network elements to solve the problem in the prior art that the VoLTE called user stays on the 2 / 3G network and the called connection time is long

Method used

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  • Call routing method and related network element
  • Call routing method and related network element
  • Call routing method and related network element

Examples

Experimental program
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Embodiment 1

[0133] In Embodiment 1 of the present invention, a call routing method is provided. In the call routing method provided in Embodiment 1 of the present invention, the SCP and VoLTEAS are co-established, that is to say, both the SCP and the SCCAS are used as modules in VoLTEAS ,Such as Figure 10 As shown, it is applied to the VoLTEAS side, and specifically includes the following steps:

[0134] S1001. The VoLTEAS receives the IDP message sent by the MSC,

[0135] Among them, the IDP message is sent when the MSC receives the call from the calling user in the CS domain to the called user, determines that the called user has registered for the VoLTE service, and sends the address of the anchored SCP when the called user registers for the VoLTE service.

[0136] Further, the execution subject of this step may be the SCP module in the VoLTEAS.

[0137] S1002. The VoLTEAS queries the HSS for the network where the called user resides according to the called number of the called user...

Embodiment 2

[0149] Corresponding to Embodiment 1, in Embodiment 2 of the present invention, a call routing method is provided, such as Figure 11 As shown, it is applied to the MSC side, and specifically includes the following steps:

[0150] S1101. The MSC receives a call from a calling user in a CS domain to a called user.

[0151] S1102. According to the found information of the called user, determine that the called user has registered for the VoLTE service, and the address of the VoLTEAS anchored when the called user registers for the VoLTE service.

[0152] Further, in this step, the MSC can determine the address of the SCP anchored when the called user registers the VoLTE service. Since the VoLTEAS and the SCP are co-established in this embodiment, the address of the SCP is the address of the VoLTEAS.

[0153] S1103. Send an IDP message carrying the called number of the called user to the VoLTEAS determined in S1102,

[0154] Wherein, the IDP message is used in the VoLTEAS to que...

Embodiment 3

[0185] In Embodiment 3 of the present invention, a call routing method is provided. In the call routing method provided in Embodiment 3 of the present invention, the SCP and VoLTEAS are independent network element devices, such as Figure 13 As shown, it is applied to the SCP side, and specifically includes the following steps:

[0186] S1301. The SCP receives the IDP message sent by the MSC,

[0187] Wherein, the IDP message is when the MSC receives a call from the calling user in the CS domain to the called user, determines that the called user has registered the VoLTE service, and the address of the SCP anchored when the called user registers the VoLTE service sent after

[0188] S1302. Send a trigger message to the VoLTEAS for triggering the VoLTEAS to select a called domain for the called user.

[0189] S1303. Receive information about the network where the called user resides fed back by the VoLTEAS.

[0190] S1304. Determine whether the called user received in S1303 ...

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Abstract

The embodiment of the present invention provides a call routing method and related network elements. The MSC receives the call from the calling user in the CS domain to the called user; and determines that the called user has registered VoLTE according to the information of the called user found. service, and the address of the VoLTE AS anchored when the called user registers for the VoLTE service; the VoLTE AS sends an IDP message to the VoLTE AS, and the VoLTE AS queries the HSS for the called user's resident address based on the called number of the called user carried in the IDP message. Network: Based on the query result that the network where the called user resides is a 2 / 3G network, the VoLTE AS sends a continue message to the MSC, so that the MSC completes the connection to the called user in the CS domain. The connection time of the called user is shortened. The invention relates to the field of mobile communication.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a call routing method and related network elements. Background technique [0002] In the prior art, the user can use the IP Multimedia Subsystem (IMS, IPMultimediaSubsystem) network to implement the voice service (VoLTE, VoiceoverLTE) service on the LTE network. The network communicates with the caller. Then, there is the following scenario: the calling user calls the called user in the circuit switched domain (CS, CircuitSwitchedDomain), and the called user has registered for the VoLTE service. Standard (4G, FourthGenerationofMobilePhoneMobileCommunicationsStandards network, or attached to the second generation / third generation mobile communication system technical specification (2 / 3G, Second / ThirdGeneration) network, so the called routing cannot be addressed. figure 1 It is a schematic diagram of the routing problem in the above scenario in the prior art,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/16H04W8/06H04W36/00
Inventor 安凯李国艳付翠云陈娟利方冬梅刘新宇何嫚
Owner CHINA MOBILE GRP BEIJING
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