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Circuit domain access ip multimedia subsystem call hold and call recovery implementation method

A multimedia subsystem and call hold technology, which is applied in the direction of electrical components, connection management, service signaling, etc., can solve the problems that the call hold and call recovery methods cannot meet the business needs of call hold and call recovery, confusion, etc., to avoid The effect of confusing the media state and simplifying the control process

Inactive Publication Date: 2011-12-07
广东华亨电信设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0052] At this time, UE-A is the party that initiates the call recovery, and as a result, it receives the recovery notification message sent from the CS domain (VMSC), which may cause UE-A to think that the remote end has released the call hold, and may also cause confusion
[0053] In summary, the current call hold and call recovery methods cannot meet the service requirements of existing user equipment for call hold and call recovery

Method used

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  • Circuit domain access ip multimedia subsystem call hold and call recovery implementation method
  • Circuit domain access ip multimedia subsystem call hold and call recovery implementation method
  • Circuit domain access ip multimedia subsystem call hold and call recovery implementation method

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Embodiment Construction

[0085] The present invention provides a method for implementing call hold and call recovery when a CS accesses an IMS, to solve the two problems when ICS UE (UE-A) initiates call hold or call recovery to a remote UE (UE-B). Each user equipment enters the corresponding call hold state, or exits the corresponding call hold state, and is already in the required state. At this time, it is not necessary to require the MGCF / MGW that the media passes must also be in the same state as UE-A, that is, if The MGCF / MGW continues to maintain the state of sending and receiving, and will not affect the maintained service. At the same time, since the ICCF does not need to send an update request to the MGCF / MGW, the MGCF will not be triggered to send a call hold or call resume message to the VMSC, avoiding confusion of the ICS UE state and simplifying the control process of the call hold service. Specific embodiments are described in detail below, but not as a limitation to the present inventi...

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Abstract

The invention discloses a method for implementing call hold and call recovery for CS accessing an IP multimedia subsystem. The method for implementing call hold is applied to call hold between centralized service user equipment and remote user equipment in a local IP multimedia subsystem, including: (1) The user equipment of the centralized service of the local IP multimedia subsystem sends a call hold request message to the circuit domain control function of the IP multimedia subsystem, carrying media working mode indication information; (2) the circuit domain control function of the IP multimedia subsystem Send the media working mode indication information to the remote user equipment; (3) The remote user equipment controls the media resources of the terminal to migrate to a corresponding holding state according to the received media working mode indication information. By adopting the method of the invention, the service requirements of call maintenance and call recovery of CS accessing IMS are met.

Description

technical field [0001] The present invention relates to IP (Internet Protocol, Internet Protocol, be called for short IP) multimedia subsystem (IP Multimedia Core Network Subsystem, be called for short IMS), more specifically, relate to the call hold and call when the circuit domain (Circuit Switched) accesses IMS Restore implementation method. Background technique [0002] The IMS is an IP-based network architecture proposed by the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP for short). It builds an open and flexible business environment, supports multimedia applications, and provides users with rich multimedia services. [0003] IMS is an IP-based telecommunications network architecture and has nothing to do with access technology. In addition to providing services for packet access networks such as GPRS (General Packet Radio Service) and WLAN (Wireless Local Area Network, wireless local area network), it also provides It can provide serv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/16H04W4/20H04W76/02H04W80/04H04W80/10
Inventor 郝振武谢宝国游世林
Owner 广东华亨电信设备有限公司