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WO2007045138A1 - Procede et systeme de prevention d'une defaillance d'un appel mobile demande - Google Patents

Procede et systeme de prevention d'une defaillance d'un appel mobile demande Download PDF

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Publication number
WO2007045138A1
WO2007045138A1 PCT/CN2006/001579 CN2006001579W WO2007045138A1 WO 2007045138 A1 WO2007045138 A1 WO 2007045138A1 CN 2006001579 W CN2006001579 W CN 2006001579W WO 2007045138 A1 WO2007045138 A1 WO 2007045138A1
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WO
WIPO (PCT)
Prior art keywords
mobile switching
switching center
pool
msc
network device
Prior art date
Application number
PCT/CN2006/001579
Other languages
English (en)
Chinese (zh)
Inventor
Jie Li
Ying Tang
Yunxia Cai
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007045138A1 publication Critical patent/WO2007045138A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Definitions

  • the present invention relates to mobile communication technologies in the field of communications, and more particularly to a method and system for preventing a mobile terminated call from failing. Background technique
  • IU FLEX Intra-domain comiection of RAN nodes to multiple CN nodes
  • CS/PS CN
  • Networking mode of node connection The networking example is shown in Figure 1.
  • the mobile switching centers MSC1, MSC2 and MSC3 form a mobile switching center pool MSC POOL1
  • the mobile switching centers MSC4, MSC5 and MSC6 form another mobile switching center pool MSC POOL2.
  • MSC1/VLR1 Dynamic user data will be lost.
  • a mobile terminated call occurs, that is, a call is made to the user B; the home location register (HLR) of the user B takes the roaming number PRN to the mobile switching center MSC1; but because the MSC1 fails, the HLR B will The response is not received or a failure response is received; the HLRB returns a failure response to the gateway mobile switching center GMSC, which ultimately results in a call loss.
  • HLR home location register
  • the present invention provides a method and system for preventing a mobile terminated call from failing to solve the problem that the prior art fails to terminate the call when a mobile switching center in the mobile switching center pool fails.
  • a method for preventing a mobile terminated call from failing includes the following steps:
  • the network device learns that the first mobile switching center where the called user is currently inactive, it moves from the first one.
  • the second mobile switching center is selected in the mobile switching center pool (MSC POOL) where the mobile switching center is located instead of the first mobile switching center;
  • the second mobile switching center allocates a roaming number to the called user according to the roaming number request, and acquires user data of the called user from a home location register (HLR);
  • HLR home location register
  • a call is initiated to the second mobile switching center according to the roaming number, and the second mobile switching center pages the called user according to the user data of the called user, and establishes a call after obtaining the response.
  • the network device learns that the mobile switching center fails in a manual setting manner, an automatic sensing manner, or a semi-automatic manner.
  • the network device selects the second mobile switching center from the pool of mobile switching centers using the same algorithm as the selected radio network controller (RNC).
  • RNC radio network controller
  • the second mobile switching center acquires user data from the HLR through one or more interactions.
  • the network device is a home location register (HLR), and the mobile switching center information included in the mobile switching center pool and each mobile switching center pool is configured on the HLR.
  • HLR home location register
  • the network device is a signaling switching point (STP), and the mobile switching center pool and the mobile switching center information included in each mobile switching center pool are configured on the STP.
  • STP signaling switching point
  • the home location register accesses the second mobile switching center through the STP.
  • a network device including:
  • a storage unit configured to store information of a mobile switching center pool (MSC POOL) and a mobile switching center included therein;
  • MSC POOL mobile switching center pool
  • the selecting unit selects the second mobile switching center from the pool of the corresponding mobile switching center when it is known that the first mobile switching center where the user is currently located fails;
  • connection unit configured to send a call addressed to the first mobile switching center to the second mobile switching center for processing.
  • a communication system comprising:
  • Mobile switching center for controlling calls a network device, configured to save information of a mobile switching center pool (MSC POOL) and a mobile switching center included therein, and the network device is in the pool of the corresponding mobile switching center when it knows that the first mobile switching center where the user is currently inactive The second mobile switching center is selected to replace the failed mobile switching center for subsequent call processing.
  • MSC POOL mobile switching center pool
  • the second mobile switching center is selected to replace the failed mobile switching center for subsequent call processing.
  • the network device is a home location register; or the network device is a signaling transfer point.
  • an MSC in the MSC POOL fails (such as a failure)
  • an alternative MSC is selected from the MSC POOL for the called user, and the MSC acquires user data and pages the user, thereby making the user Mobile terminated calls can still be successful, thus avoiding call loss.
  • FIG. 1 is a schematic diagram of a configuration of an existing MSC POOL
  • FIG. 2 is a flow chart of a mobile terminated call after an MSC failure in an existing MSC POOL;
  • FIG. 3 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 4 and FIG. 5 are flowcharts showing a mobile terminated call after an MSC failure occurs in an MSC POOL according to an embodiment of the present invention. detailed description
  • MSC POOL mobile switching center pool
  • the network device 30 in this embodiment includes a storage unit 300, a selection unit 310, and a connection unit 320.
  • the storage unit 300 stores the information of the mobile switching center pool (MSC POOL) and the information of the mobile switching center included therein.
  • the selecting unit 310 has a connection relationship with the storage unit for knowing that the mobile switching center where the user is currently located is invalid. And selecting another normal mobile switching center from the pool of mobile switching centers according to the information stored in the storage unit 300; the connecting unit 320 transmits the call addressed to the failed mobile switching center to the selected another mobile switching The heart is processed.
  • the network device 30 may be a home location register (HLR), which is more suitable for a local network user; the network device 30 may also be a signaling transfer point (STP), which is more suitable for non-local network users and Roaming users.
  • HLR home location register
  • STP signaling transfer point
  • the HLR and STP learn about the failure of the mobile switching center, including: manual setting, automatic sensing mode or semi-automatic mode, where:
  • A. Manual setting means that after the MSC fails, the MSC is manually set to the invalid state on the HLR or STP.
  • the automatic sensing mode refers to interacting with the MSC through the HLR or STP.
  • the HLR or STP finds that the MSC does not respond correctly, the MSC is automatically set to a failure state.
  • the semi-automatic mode refers to interacting with the MSC through the HLR or STP.
  • the HLR or STP finds that the MSC does not respond correctly, it generates an alarm, which is manually determined and sets the MSC to a failed state.
  • the MSC is selected from the MSC POOL.
  • the preferred method is to use the same algorithm as the Radio Network Controller (RNC). Of course, other algorithms can be used for selection.
  • RNC Radio Network Controller
  • the MSC POOL is configured in the HLR database, and when the MSC fails, the HLR selects an alternate MSC from the corresponding MSC POOL.
  • the HLR is configured with two MSC POOLs, one for POOL1, including mobile switching centers MSC1, MSC2 and MSC3, and the other for MSC POOL2, including mobile switching centers MSC4, MSC5 and MSC6. If the current home MSC of mobile subscriber B is MSC1 and MSC1 fails, the mobile terminated call processing process for user B is as shown in FIG. 4:
  • a call from user A to mobile user B is initiated on the GMSC.
  • the GMSC sends a routing information request SRI (Send Routing Information) to the HLR of the user B.
  • SRI Send Routing Information
  • the HLR finds that the current VLR of the user B is MSC1/VLR1 from the user database, and the HLR finds that the MSC1/VLR1 has failed, and the HLR obtains the MSC from the MSC1/VLR1.
  • Another normal working MSC is selected in POOL1, for example, MSC2/VLR2 is selected instead of MSC1, and the HLR sends a PRN (Prov. Roaming Number) to MSC2/VLR2 to obtain the roaming number of User B.
  • PRN Prov. Roaming Number
  • MSC2/VLR2 After receiving the PRN request from the HLR, MSC2/VLR2 assigns the roaming number to the HLR (PRNAck); meanwhile, since MSC2/VLR2 does not have the data of User B, the data is restored to the HLR.
  • the HLR inserts User Data (Insert Subscriber Data) into MSC2/VLR2, and responds with MSC2/VLR.
  • Inserting user data between the HLR and MSC2/VLR2 may be done in one interaction or through multiple interactions.
  • the HLR responds to the MSC2/VLR2 response data recovery (Restore DataAck).
  • the HLR After obtaining the PRNAck of MSC2/VLR2, the HLR returns SRI_ACK to the GMSC;
  • the GMSC initiates a call to MSC2 based on the MSRN.
  • the MSC2 obtains the incoming call request of the MSRN and waits for the recovery data to be completed, and has obtained the user information of the user B. Since the MSC2/VLR2 does not have the current location area of the user B, it searches for the coverage of the MSC2 (ie, PoolAreal). Call (using the subscriber's IMSI as the paging identifier).
  • User B Since User B is actually within the scope of PoolAreal, it can receive the paging and give the paging response; RNC BSC sends the paging response to MSC2 according to IMSI.
  • MSC POOL is configured in the STP database.
  • MSC fails, an alternative MSC is selected by the STP MSC POOL; the HLR to MSC signaling is transferred through STP.
  • STP configures two MSC POOLs, one for POQL1, including mobile switching centers MSC1, MSC2 and MSC3, and the other for MSC POOL2, including mobile switching centers MSC4, MSC5 and MSC6.
  • MSC1 mobile switching centers
  • MSC4 mobile switching centers
  • MSC5 mobile switching centers
  • the GMSC sends a routing information request SRI (Send Routing Information) to the HLR of the user B.
  • SRI Send Routing Information
  • the HLR finds that the current LR of the user B is MSCl/VLR1 from the user database, and sends a PRN (Prov. Roaming Number) to obtain the roaming number of the user B.
  • the CdPA Called Party Address
  • the CdPA Called Party Address
  • the message was relayed via STP.
  • STP obtains MSCl/VLR1 from the SCCP CldPA of the MAP message PRN, and finds that MSCl/VLR1 has failed; then STP selects another normal working MSC from MSC POOL1 where MSCl/VLR1 is located, for example, MSC2/VLR2 is selected instead. MSC1, STP forwards the CldPA of the SCCP of the PRN to MSC2 VLR2 and then forwards it.
  • MSC2/VLR2 assigns the roaming number to the HLR (PRN Ack), and at the same time, since MSC2 VLR2 does not have the data of User B, it recovers the data to the HLR.
  • the HLR inserts user data (Insert Subscriber Data) into MSC2/VLR2, and responds with MSC2/VLR.
  • Inserting user data between the HLR and MSC2/VLR2 may be done in one interaction or through multiple interactions.
  • the HLR responds to the MSC2 VLR2 with a Restore Data Ack.
  • the GMSC initiates a call to MSC2 based on the MSRN.
  • the MSC2 obtains the incoming call request of the MSRN and waits for the recovery data to be completed, and has obtained the user information of the user B. Since the MSC2/VLR2 does not have the current location area of the user B, it searches for the coverage of the MSC2 (ie, PoolAreal). Call (using the subscriber's IMSI as the paging identifier).
  • the RNC/BSC sends a paging response to MSC2 based on IMSI.
  • MSC2 After MSC2, the call is established according to the normal procedure. ' In FIG. 4, although MSC2 acquires user data from the HLR through STP, it is not limited thereto, and MSC2 can directly acquire data by interacting with the HLR.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de prévention d'une défaillance d'un appel mobile demandé comprenant les étapes de sélection par un dispositif de réseau d'un second centre de commutation mobile (CCM) de manière à substituer un premier CCM provenant d'une réserve de CCM, où ledit premier CCM est localisé, lorsqu'il est déterminé que le premier CCM, où est localisé un abonné, a échoué, d'attribution par ledit second CCM d'un numéro itinérant à l'abonné appelé en fonction d'une demande de numéro itinérant, d'obtention des données de l'abonné appelé et de réalisation d'un appel de départ vers le second CCM selon le numéro itinérant. Le second CCM téléavertit, ensuite, l'abonné appelé en fonction des données de l'abonné appelé et établit l'appel après obtention d'une réponse. Parallèlement, cette invention a aussi pour objet un système de communication.
PCT/CN2006/001579 2005-10-21 2006-07-05 Procede et systeme de prevention d'une defaillance d'un appel mobile demande WO2007045138A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200510118251.0 2005-10-21
CNB2005101182510A CN1332584C (zh) 2005-10-21 2005-10-21 防止移动终结呼叫失败的方法及系统

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120129524A1 (en) * 2010-08-09 2012-05-24 Robert Swanson Mobile Location Recovery for MSC Pooling
DE112007000778B4 (de) * 2006-03-31 2013-08-14 Motorola Mobility, Inc. ( N.D. Ges. D. Staates Delaware ) Verfahren zum Weiterleiten von Anrufen in einem Mobilkommunikationsnetz

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100563392C (zh) * 2006-03-31 2009-11-25 华为技术有限公司 在网络故障时的呼叫恢复方法及系统
CN1921687B (zh) * 2006-09-15 2010-06-16 华为技术有限公司 基站控制器多归属组网下的呼叫建立方法
CN101170717B (zh) * 2006-10-26 2010-07-28 华为技术有限公司 一种移动交换中心许可证机制在池内的实现方法及系统
WO2008064599A1 (fr) * 2006-12-01 2008-06-05 Huawei Technologies Co., Ltd. Procédé, système et matériel de reprise d'un appel dans un groupe de msc
CN101150781B (zh) * 2007-10-18 2012-01-04 华为技术有限公司 移动交换中心池中被叫恢复的方法、装置和系统
CN101217694B (zh) * 2007-12-26 2011-04-20 华为技术有限公司 移动交换中心池中被叫恢复的方法、系统和设备
CN103716819A (zh) * 2012-09-29 2014-04-09 华为技术有限公司 拜访位置寄存器故障处理方法和移动管理网元

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6408182B1 (en) * 1999-07-16 2002-06-18 Ericsson, Inc. Redundant mobile switching center (MSC) architecture for a radio telecommunications network
CN1418023A (zh) * 2001-11-06 2003-05-14 华为技术有限公司 无线接入网中基站控制器的备份实现方法及装置
CN1434574A (zh) * 2002-01-24 2003-08-06 华为技术有限公司 一种移动交换中心的备份方法
CN1545345A (zh) * 2003-11-12 2004-11-10 中兴通讯股份有限公司 移动软交换网络的容灾方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6771983B1 (en) * 2000-11-02 2004-08-03 Telefonaktiebolaget Lm Ericsson (Publ) Signaling in a mobile cellular communication network with pooled MSCs
US7164926B2 (en) * 2001-06-12 2007-01-16 Telefonaktiebolaget Lm Ericsson (Publ) Global paging of mobile stations in a wireless network using MSC pool
GB0404410D0 (en) * 2004-02-27 2004-03-31 Nokia Corp A communication network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6408182B1 (en) * 1999-07-16 2002-06-18 Ericsson, Inc. Redundant mobile switching center (MSC) architecture for a radio telecommunications network
CN1418023A (zh) * 2001-11-06 2003-05-14 华为技术有限公司 无线接入网中基站控制器的备份实现方法及装置
CN1434574A (zh) * 2002-01-24 2003-08-06 华为技术有限公司 一种移动交换中心的备份方法
CN1545345A (zh) * 2003-11-12 2004-11-10 中兴通讯股份有限公司 移动软交换网络的容灾方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112007000778B4 (de) * 2006-03-31 2013-08-14 Motorola Mobility, Inc. ( N.D. Ges. D. Staates Delaware ) Verfahren zum Weiterleiten von Anrufen in einem Mobilkommunikationsnetz
US20120129524A1 (en) * 2010-08-09 2012-05-24 Robert Swanson Mobile Location Recovery for MSC Pooling
US8634832B2 (en) * 2010-08-09 2014-01-21 Telefonaktiebolaget L M Ericsson (Publ) Mobile location recovery for MSC pooling

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CN1332584C (zh) 2007-08-15
CN1819699A (zh) 2006-08-16

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