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Method, device and system for talking connection

A technology for call connection and multimedia subsystem, applied in the fields of devices, systems, and call connection methods, can solve problems such as low efficiency and unsuccessful call connection, and achieve the effect of improving efficiency

Inactive Publication Date: 2014-02-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] In view of this, the present invention provides a call connection solution to solve the problem in the prior art that the call connection fails due to incomplete negotiation of media resources, or the problem of low efficiency due to the need for renegotiation

Method used

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  • Method, device and system for talking connection
  • Method, device and system for talking connection
  • Method, device and system for talking connection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] In this embodiment, it is described that when a call is established between ICS UE-A and UE-B, ICS UE-A sends an invitation message to UE-B to hold the call, puts the call on hold, and then sends UE-B B sends an invitation message to activate the call, the process of activating the call, Figure 9 It is the specific flowchart of this embodiment, such as Figure 9 As shown, it mainly includes the following steps:

[0111] Step 901, ICS UE-A follows the standard IMS centralized service process (above image 3 or Figure 4 The process described) establishes a call connection with UE-B, which includes two media links, one is the CS media link between ICS UE-A and MSCe or MGW, and the other is the CS media link between MSCe or MGW and UE-B IMS media link;

[0112] Step 902, ICS UE-A initiates a first invitation message to UE-B to keep the call through IMS signaling, the media resource information in the invitation message carries an identifier indicating to keep the call, ...

Embodiment 2

[0140] In this embodiment, after a call is established between ICS UE-A and UE-B, ICS UE-A initiates a call to UE-C to establish a three-way call. Figure 10 The flowchart for establishing the three-party pass for ICS UE-A in the embodiment of the present invention, such as Figure 10 It mainly includes the following steps:

[0141] Step 1001, ICS UE-A establishes a call connection with UE-B according to the standard IMS centralized service process. The connection includes two media links, one is the CS media link between ICS UE-A and MSCe or MGW, and the other is the CS media link between ICS UE-A and MSCe or MGW. It is the IMS media link between MSCe or MGW and UE-B. In order to initiate a new call, ICS UE-A puts the conversation with UE-B on hold. Therefore, there is no media data transmission in the IMS media link;

[0142] Step 1002, ICS UE-A initiates a first invitation message to UE-C with IMS signaling, such as sending an INVITE (invitation) message, the invitation me...

Embodiment 3

[0158] In this embodiment, the process of transferring ICS UE-A to talk with UE-C after UE-B has established sessions with ICS UE-A and UE-C is described. Figure 11 Be the flow chart of this embodiment, such as Figure 11 As shown, the specific process of this embodiment mainly includes the following steps:

[0159] Step 1101, UE-B establishes a call connection with ICS UE-A according to the standard IMS centralized service procedure. The connection includes two media links, one is the CS media link between ICS UE-A and MSCe or MGW, and the other is the The IMS media link between MSCe or MGW and UE-B, in order to initiate a new call, UE-B puts the call with ICS UE-A on hold, so there is no media data transmission on the IMS media link, UE-B and ICS The session ID between UE-A is D1.

[0160] Step 1102, UE-B establishes a call connection with UE-C according to the standard IMS procedure, UE-B puts the call with UE-C on hold, and the session identifier between UE-B and UE-C i...

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Abstract

The invention provides a method, a device and a system for talking connection. The method comprises the following steps that: AS receives a first invitation message sent to target UE by ICS UE, and sends a transfer message to CS-IMS switching equipment, wherein the transfer message is used for indicating the CS-IMS switching equipment to send a second invitation message to the target UE; the AS receives the second invitation message sent to the target UE by the CS-IMS switching equipment, and forwards the second invitation message to the target UE; and the AS receives a second response message to the second invitation message from the target UE, and sends a first response message to the first invitation message to the ICS UE. The technical proposal can improve the efficiency of the talking connection.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a call connection method, device and system. Background technique [0002] IP (Internet Protocol, referred to as IP) multimedia subsystem (IP Multimedia Core Network Subsystem, referred to as IMS) is proposed by the 3rd Generation Partnership Project (3rd Generation Partnership Project, referred to as 3GPP) based on IP Based on the network architecture, the system builds an open and flexible business environment, supports multimedia applications, and can provide users with rich multimedia services. [0003] IMS can be divided into control layer and business layer. Among them, the control layer mainly includes a session control function (Call Session Control Function, referred to as CSCF) for service triggering and control, and CSCF can be divided into proxy CSCF (Proxy CSCF, referred to as P-CSCF), query CSCF (Interrogating CSCF, referred to as I-CSCF) and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/16H04W76/02H04W88/16H04W88/18H04L1/16
Inventor 谢振华
Owner ZTE CORP