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Realizing method with optimized mobile user as caleld flow process

An implementation method and technology for mobile users, applied in the field of call services, can solve the problems of prolonging the response time of terminal calls, call failure, waste of voice channel resources, and base station wireless resources during paging, so as to improve CAMEL services and reduce connection time , Improve the effect of call completion rate

Inactive Publication Date: 2005-02-23
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are some defects in this process. For example, when the called user is in the blind area of ​​the wireless signal and cannot be connected, the GMSC will still connect the traffic to the called VMSC (Visited MSC: Visited Mobile Switching Center) as usual, and then the VMSC will search again. call, but the call still fails
In this way, when the called user cannot accept the call, the network also redundantly performs the procedures of call connection and paging of the called party.
This not only wastes the channel resources between GMSC and VMSC and the wireless resources of the base station when paging, but also prolongs the response time of the final call

Method used

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  • Realizing method with optimized mobile user as caleld flow process

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Embodiment Construction

[0018] This embodiment adopts the method of pre-paging, that is, when the visitor location register (VLR) receives the roaming number provided by the home location register (HLR), it does not respond to the roaming number immediately, but in the GSM0902 protocol. Basically, the paging process is advanced. If the called party is busy or the paging fails and the corresponding forwarding or waiting service is not activated, the VLR returns to the HLR a response of failure to provide a roaming number. Thereby avoiding the redundant connection of the network when the called user cannot accept the call. The following VLR and HLR refer to the called VLR and HLR.

[0019] When calling out or incoming, when VLR sends a call request completion signal to MSC, it sets and records the user status as busy; when the call is released, CC (Call Control: call control) notifies the user of idle; VLR sets and records the user status as idle. In order to further reduce the invalid paging of the s...

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Abstract

The method includes following steps: a) in paging process the called VLR receives request for providing roaming number for called HLR; b) the called VLR sends out pre-paging through MSC in call area where the called party is at and decides if it is succeeded, if yes, then entering into step d, otherwise entering into step c; c) it is decided if the called subscriber enables the follow-on-call in the end office according to cause of failure, if yes, then entering into step d, otherwise entering into step e; d) the called VLR returns successful response to called HLR and continues normal process, then ending; e) the called VLR returns failure response to the called HLR and makes process according to cause of failure, then ending.

Description

technical field [0001] The present invention relates to the calling service in the field of mobile communication, in particular to the calling process when the mobile user is called. Background technique [0002] The GSM09.02 protocol describes the normal process when a mobile user is called. The GMSC (GatewayMobile Switching Center: Gateway Mobile Switching Center) obtains the roaming number through the routing information query. According to the roaming number, the GMSC connects the call to the called MSC ( Mobile Switching Center: Mobile Switching Center), and then the MSC performs paging for the called user. [0003] There are some defects in this process. For example, when the called user is in the blind area of ​​the wireless signal and cannot be connected, the GMSC will still connect the traffic to the called VMSC (Visited MSC: Visited Mobile Switching Center) as usual, and then the VMSC will search again. Hoo, but eventually the call still fails. In this way, when ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/16H04W8/02
Inventor 卢旭东郭益军陶宜富
Owner ZTE CORP
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