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Circuit domain drop paging method and device

A circuit domain fallback and paging device technology, which is applied in the field of circuit domain fallback paging methods and devices, can solve problems such as CSFB called paging failure, improve the paging success rate, improve user perception, and improve network indicators Effect

Active Publication Date: 2016-07-06
CHINA MOBILE GRP GUANGDONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is an urgent need for a method that can solve the above-mentioned CSFB called paging failure problem

Method used

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  • Circuit domain drop paging method and device
  • Circuit domain drop paging method and device
  • Circuit domain drop paging method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0063] In the prior art, there is no implementation of converting the IMSI to the TMSI for the secondary paging message. When the MSC sends a paging request (PagingRequest) message to the MME, the message may carry the IMSI or TMSI. While in the connected state, the MME will use the CS service notification (CSServicenotification) message to transmit the MSC secondary paging message to the UE. The prior art does not consider whether the CSServicenotification message should carry the IMSI or the TMSI. According to the signaling message about CSServicenotification in 3GPPTS23272MobileTerminatingcall, when MSC initiates secondary paging and sends it to MME with IMSI, in the signaling process in connected state, MME will send CSServicenotification message to UE, carrying IMSI .

[0064] In order to overcome the problem of paging failure mentioned above, in this embodiment, a new function is added for MME. After MME receives the PagingRequest message sent by MSC for paging, if MME...

Embodiment 2

[0093] In this embodiment, by adding a separate paging policy of the SGs interface on the MSC, the TMSI is directly carried in the secondary paging request initiated by the MSC, so as to ensure the successful connection of the paging process.

[0094] Please refer to Figure 9 , the paging method of CSFB provided by the present embodiment, comprises the following steps:

[0095] Step 91 , when the MSC initiates a secondary paging request for a target user, it judges whether the secondary paging request is a secondary paging request based on the SGs interface.

[0096] Step 92, if yes, carry the TMSI of the target user in the secondary paging request, and send the secondary paging request to the MME, so as to initiate secondary paging for the target user.

[0097] In the secondary paging strategy on the MSC, the above method separates the SGs interface and sets it separately, so that there is no need to modify the existing EPC network architecture or adjust the CSFB signaling ...

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Abstract

The invention provides a circuit domain drop paging method and device, and the method comprises the steps: enabling an MME to receive a paging request message which is sent by an MSC (mobile switching center) for a target user; enabling the MME to analyze the paging request message, and obtaining the paging identification, carried by the paging request message, of the target user; enabling the IMSI of the target user to be converted into a TMSI (Temporary Mobile Subscriber Identity) when the paging identification the IMSI (International Mobile Subscriber Identity) of the target user and the target user is in a connection state; downloading a CS service notification message carrying the TMSI of the target user, and carrying out the paging of the target user. The method improves the paging success rate of a CSFB called process, improves the network index, and improves the use perception of a user.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a circuit domain fallback (CSFB, Circuit Switched Fallback) paging method and device. Background technique [0002] Long Term Evolution (LTE, Long Term Evolution) is a pure data service network, and VoLTE based on IP Multimedia System (IMS, IPMultimedia Subsystem) network is the ultimate voice solution for LTE networks. When the ultimate solution construction has not been completed, CSFB technology can reuse the existing 2G / 3G mobile communication network to quickly realize LTE voice service. figure 1 It shows a CSFB network architecture in the prior art. In the CSFB network, the SGs interface between the Mobility Management Entity (MME, Mobility Management Entity) and the Mobile Switching Center Server (MSC Server) needs to be added to complete the UE in the evolved packet system ( Mobility management and paging process between EPS, EvolvedPacketSystem) and...

Claims

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Application Information

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IPC IPC(8): H04W68/00
Inventor 吴杰明胡冯梅
Owner CHINA MOBILE GRP GUANGDONG CO LTD
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