WO2009015613A1 - Procédé et dispositif servant à mettre en place une reprise sur sinistre - Google Patents

Procédé et dispositif servant à mettre en place une reprise sur sinistre Download PDF

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Publication number
WO2009015613A1
WO2009015613A1 PCT/CN2008/071845 CN2008071845W WO2009015613A1 WO 2009015613 A1 WO2009015613 A1 WO 2009015613A1 CN 2008071845 W CN2008071845 W CN 2008071845W WO 2009015613 A1 WO2009015613 A1 WO 2009015613A1
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WO
WIPO (PCT)
Prior art keywords
service
service processing
processing unit
unit
request message
Prior art date
Application number
PCT/CN2008/071845
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English (en)
Chinese (zh)
Inventor
Sihai Ye
Hao Zhang
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 WO2009015613A1 publication Critical patent/WO2009015613A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0062—Provisions for network management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure

Definitions

  • the present invention relates to network communication technologies, and in particular, to a method and apparatus for implementing disaster tolerance.
  • a mobile switching center can connect multiple base station controllers (BSCs), but one BSC can only connect one MSC.
  • BSCs base station controllers
  • the networking mode is relatively simple. For the service request message initiated by the user, the BSC can directly route to the MSC connected to itself. However, the disaster recovery capability of this networking mode is poor. For example, if an MSC fails, all the BSCs connected to the MSC will be disabled. All users within the coverage of these BSCs will not be able to use it. Conduct business communications.
  • 3GPP R5 introduces a networking mode of the MSC pool.
  • the structure of the MSC pool is shown in FIG. 1. Not only one MSC can connect multiple BSCs, but also one BSC can connect multiple MSCs. Form the MSC pool.
  • the BSC selects an MSC from the MSC pool to perform message routing according to a certain algorithm. If an MSC in the MSC pool fails, the user on the MSC that has failed can be migrated to another normal MSC in the pool, so that the user can still perform normal service communication, thus achieving disaster recovery.
  • the networking mode of the MSC pool can implement disaster tolerance and has a certain disaster tolerance capability.
  • the method for implementing disaster recovery has a certain impact on the surrounding network elements. For example, after receiving the service request message, the BSC needs to perform the MSC selection, which will result in an increase in the complexity of the service processing on the BSC.
  • the main purpose of the present invention is to provide a method and apparatus for implementing disaster tolerance, which can implement disaster tolerance without affecting surrounding network elements.
  • the method for implementing disaster tolerance is as follows: Receiving a service request message, selecting a normal service processing unit from at least two service processing units, where the at least two service processing units are located in the same node device;
  • the selecting the normal service processing unit from the at least two service processing units includes: when the primary service processing unit is normal, selecting the primary service processing unit; When the service processing unit fails, the standby service processing unit is selected; when the service processing unit works in the load sharing mode, selecting a normal service processing unit from the at least two service processing units includes: sharing according to the load The principle selects one service processing unit from the at least two service processing units, and the failed service processing unit is not in the alternative.
  • the receiving the service request message, selecting the normal service processing unit, and sending the service request message are all completed by the service distribution unit, where the service distribution unit includes at least two sub-service distribution forms, and sends the service request message to
  • the selected service processing unit processing includes: the service distribution unit sends the received service request message to the selected service processing unit, and the service processing unit processes the received service request message from the service for storing the node device.
  • the data storage unit of the data obtains the business data required in the business process.
  • the data storage unit includes at least two sub-data storage units, and the sub-data storage units operate in an active/standby mode or in a load sharing manner.
  • the service distribution unit, the service processing unit, and the data storage unit are set at the same place, or are separated at different locations.
  • the service distribution unit, the service processing unit, and the data storage unit communicate by means of an internal bus or by an external network.
  • the node device is a mobile switching center MSC, a home location register HLR or a serving universal packet radio service support node SGSN.
  • the present invention further provides a node device, including: a service distribution unit that performs message distribution, and at least two service processing units, where
  • a service distribution unit configured to: after receiving the service request message, from the at least two service processing orders Selecting a normal service processing unit in the element, and transmitting the received service request message to the selected service processing unit;
  • a service processing unit configured to process the received service request message.
  • the service distribution unit includes at least two sub-service distribution units, and the sub-service distribution units work in an active/standby mode or work in a load sharing manner.
  • the device further includes:
  • a data storage unit configured to store service data of the node device, and provide the service processing unit with service data required in a service processing process.
  • the data storage unit includes at least two sub-data storage units, and the sub-data storage units operate in an active/standby mode or in a load sharing manner.
  • the service distribution unit, the service processing unit, and the data storage unit are set at the same place, or are separated at different locations.
  • the service distribution unit, the service processing unit, and the data storage unit communicate by means of an internal bus or by an external network.
  • the node device is an MSC, a Home Location Register HLR or a Serving General Packet Radio Service Support Node SGSN.
  • the other normal service processing unit can be selected to process the service, so that The normal service of the node has an impact, thus realizing the self-discharge of the node.
  • the node uses a unified interface to connect with the surrounding network element, and distributes the service request message through the service distribution unit, thereby shielding the multi-service processing unit structure inside the node, thereby realizing the realization of the capacity without affecting the surrounding network element. disaster.
  • FIG. 1 is a schematic structural diagram of a MSC Pool networking in the prior art.
  • FIG. 2 is a schematic structural diagram of a node for implementing self-tolerance disaster according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of an MSC node that implements self-tolerant disasters according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method for implementing self-tolerance disaster according to an embodiment of the present invention. detailed description
  • the existing method for implementing disaster tolerance is likely to affect peripheral network elements, which may result in an increase in processing complexity of peripheral network elements.
  • the embodiment of the present invention provides a self-disabled node, which is connected to a peripheral network element by using a unified interface, and presents only one network element to the surrounding network element, and can To achieve disaster tolerance while reducing the impact on surrounding network elements.
  • the node for implementing self-discharge includes: a service distribution unit, a service processing unit, and a data storage unit.
  • the service distribution unit is configured to receive the service request message, and distribute the received service request message to the service processing unit; the service processing unit is configured to process the received service request message; and the data storage unit is configured to store The service data of the node (including static data and dynamic data related to the user), and provides the business processing unit with the business data required in the business process.
  • FIG. unit In order to prevent the failure of any one of the service distribution unit, the service processing unit, and the data storage unit to cause the node to perform normal service communication, multiple service distribution units, multiple service processing units, and multiple data storages are set in FIG. unit.
  • the other normal service distribution unit, the service processing unit, or the data storage unit is selected to process the service, so that the normal service of the node is not generated. The impact, thus achieving the self-discharge of the node.
  • the service processing units can work in the active/standby mode or the load sharing mode. Similarly, the active/standby mode or load sharing can be used between the service distribution units and the data storage units. Way to work. And, between business distribution units, business processing The working modes between units and data storage units are independent of each other.
  • the primary unit For units operating in active/standby mode, if the primary unit is in a normal state, the primary unit is responsible for processing all services; if the primary unit fails, the standby unit is switched to the primary unit to take over the service. If multiple units work in a load-sharing manner, all services are shared among multiple units. When one unit fails, the service is only shared among other normal units.
  • the service distribution unit, the service processing unit, and the data storage unit constituting the node capable of self-discharge disaster can be set at the same place or separately at different locations.
  • the communication between them can be either an internal bus or an external network, such as communication over the Internet.
  • the capacity and the number of the service distribution unit, the service processing unit, and the data storage unit in the node depend on the specific service of the node. In actual applications, each unit in the node can be expanded according to actual service requirements.
  • the node implementing the self-discharge disaster shown in FIG. 2 may be any node in the communication network, such as a Home Location Register (HLR), a Serving GPRS Support Node (SGSN), an MSC, and the like.
  • HLR Home Location Register
  • SGSN Serving GPRS Support Node
  • MSC Mobility Management Entity
  • the node that implements self-discharge is the MSC, and the data storage unit and the service distribution unit adopt the active/standby working mode, and the service processing unit adopts the load sharing working mode as an example to implement the self-tolerant node.
  • the work process is accompanied by a detailed description.
  • a schematic diagram of a structure of an MSC node implementing self-tolerance includes: a primary visit location register (VLR), a standby VLR, a primary signaling distribution unit, an alternate signaling distribution unit, and n (n).
  • VLR primary visit location register
  • a standby VLR standby VLR
  • a primary signaling distribution unit primary signaling distribution unit
  • n alternate signaling distribution unit
  • a natural number of not less than 2 a signaling processing unit that operates in a load sharing mode.
  • the VLR is equivalent to the data storage unit in FIG. 2
  • the signaling processing unit is equivalent to the service processing unit in FIG. 2
  • the signaling distribution unit is equivalent to the service distribution unit in FIG.
  • a primary signaling distribution unit configured to receive a service request message (such as a user initiated location update request message or a call request message, etc.), and select a signaling processing unit from the n signaling processing units according to a load sharing principle (eg, A lightest signal processing unit is selected, and then the received service request message is sent to the selected signaling processing unit.
  • a load sharing principle eg, A lightest signal processing unit is selected, and then the received service request message is sent to the selected signaling processing unit.
  • the principle of load sharing can also include: rounding, random selection, and so on.
  • the faulty signaling processing unit is not in the alternative.
  • the primary signaling distribution unit selects only one signaling processing unit from the signaling processing unit 2 to the signaling processing unit n after receiving the service request message. Process business request messages.
  • an alternate signaling distribution unit configured to convert the primary signaling distribution unit to perform message distribution when the primary signaling distribution unit fails.
  • the signaling processing unit is configured to process the received service request message after receiving the service request message, that is, to process the signaling processing process related to the user behavior. For example, after receiving the location update request message initiated by the user, the location update to the HLR is completed, and the account opening information of the user in the HLR is stored in the VLR; or, after receiving the call request message initiated by the user, the user is completed. Call control process.
  • the primary VLR is configured to store all user-related data in the MSC, and provide the signaling processing unit with service data required in the service processing process, that is, all the signaling processing units obtain the required information from the primary VLR. Business data.
  • the standby VLR synchronizes data with the active VLR in real time, and when the primary VLR fails, it converts to the primary VLR to provide the signaling processing unit with the service data required for the service processing.
  • the signaling processing unit is equivalent to each traditional MSC in the MSC Pool.
  • the signaling distribution unit is used to distribute the message at the front end of the node, so that the MSC node shown in FIG. 3 can provide a unified interface and shield the internal multi-processing unit structure, thereby avoiding the influence on the surrounding network element such as the BSC.
  • Figure 3 extracts the data part of the traditional MSC to form a common VLR, which realizes the sharing of data among multiple signaling processing units, which can reduce the operation and maintenance workload.
  • the HLR only needs to maintain data of one MSC without separately maintaining data of multiple legacy MSCs.
  • the data storage unit may not be separately set, but the service processing unit performs the functions of the service processing and the data storage at the same time.
  • only one service distribution unit or one data storage unit may be set in the node that implements self-discharge.
  • the service distribution unit is based on the user.
  • the service distribution unit according to the Temporary Mobile Subscriber Identity (TMSI, Temp Mobile Subscriber Identity) carried in the service request message, or the International Mobile Subscriber Identity (IMSI, International Mobile Subscriber Identity), or the international mobile device identifier (IMEI, International Mobile Equipment Identity) for message distribution.
  • TMSI Temporary Mobile Subscriber Identity
  • IMSI International Mobile Subscriber Identity
  • IMEI international mobile device identifier
  • the traditional network element also has a service distribution mechanism, it is generally distributed based on the service type. For example, the MTP3 signaling and the H.248 signaling are distributed to different board processing.
  • the service processed by the service processing unit in the embodiment of the present invention refers to a service in a broad sense, rather than a specific service.
  • the service processing unit in the traditional network element is generally used to process the specific service of the network element, and the service processing unit in the embodiment of the present invention processes all the services on the network element.
  • the embodiment of the present invention also discloses a method for implementing disaster tolerance.
  • the method includes the following steps:
  • Step S401 Receive a service request message.
  • Step S402 Select a normal service processing unit from at least two service processing units.
  • the at least two service processing units are located in the same node device
  • Step S403 Send the service request message to the selected service processing unit for processing.
  • the manner of distributing the message may be performed on a user-by-user basis, for example, according to a Temporary Mobile Subscriber Identity (TMSI, Temp Mobile Subscriber Identity) carried in the service request message, or an International Mobile Subscriber Identity (IMSI, International Mobile Subscriber Identity), or International Mobile Equipment Identity (IMEI, International Mobile Equipment Identity) for message distribution.
  • TMSI Temporary Mobile Subscriber Identity
  • IMSI International Mobile Subscriber Identity
  • IMEI International Mobile Equipment Identity
  • the traditional network element also has a service distribution mechanism, it is generally distributed based on the service type. For example, the MTP3 signaling and the H.248 signaling are distributed to different board processing.
  • the above process may be completed by a service distribution unit that is in the same node device as the service processing unit.
  • the service distribution unit may include at least two sub-service distribution units that work in active/standby mode or work in a load sharing manner.
  • the service processing unit may work in the active/standby mode or in the load sharing mode.
  • the following describes the process of selecting a normal service processing unit by the service distribution unit in the two working modes:
  • the process of the service distribution unit selecting a normal service processing unit from at least two service processing units is as follows:
  • the service distribution unit selects a normal service processing unit from at least two service processing units as follows:
  • a service processing unit is selected from the at least two service processing units in accordance with the load sharing principle, and the failed service processing unit is not in the alternative.
  • the principles of load sharing may include: minimum load (eg, selecting one of the lightest signal processing units), round selection, random selection, and the like.
  • the service distribution unit sends the service request message to the selected service processing unit, and the process performed by the service processing unit may be: the service distribution unit sends the received service request message to the selected one.
  • the service processing unit processes the received service request message, and obtains the service data required in the service process from the data storage unit for storing the service data of the node device.
  • the data storage unit includes at least two sub-data storage units, and the sub-data storage units operate in an active/standby mode or in a load sharing manner.
  • the service distribution unit, the service processing unit, and the data storage unit are set at the same place, or are separated at different locations.
  • the communication between them can be either the internal bus or the external network, such as via the Internet.
  • the capacity and number of the service distribution unit, the service processing unit, and the data storage unit in the node depend on the specific service of the node. In actual applications, each unit in the node can be expanded according to actual service requirements.
  • the node device may be any node in the communication network, such as a Home Location Register (HLR), a Serving GPRS Support Node (SGSN), an MSC, and the like.
  • HLR Home Location Register
  • SGSN Serving GPRS Support Node
  • MSC Mobility Management Entity
  • the node that implements self-discharge is the MSC, and the data storage unit and the service distribution unit adopt the active/standby working mode, and the service processing unit adopts the load sharing working mode as an example to implement the self-tolerant node.
  • the work process is accompanied by a detailed description.
  • the MSC structure is shown in Figure 3.
  • the structure includes: The primary visit location register (VLR, Visit Location Register ), the standby VLR, the primary signaling distribution unit, the alternate signaling distribution unit, and n (n is a natural number not less than 2) signaling processing units operating in load sharing mode.
  • VLR Visit Location Register
  • n is a natural number not less than 2
  • the VLR is equivalent to the data storage unit
  • the signaling processing unit is equivalent to the service processing unit
  • the signaling distribution unit is equivalent to the service distribution unit.
  • the primary signaling distribution unit After the primary signaling distribution unit receives the service request message (such as a user initiated location update request message or a call request message, etc.), select a signaling processing unit from the n signaling processing units according to the load sharing principle (eg, select a load) The lightest signalling processing unit) then sends the received service request message to the selected signaling processing unit.
  • the service request message such as a user initiated location update request message or a call request message, etc.
  • the alternate signaling distribution unit performs message distribution.
  • the signaling processing unit After receiving the service request message sent by the primary signaling distribution unit or the signal distribution unit, the signaling processing unit processes the service request message, that is, is responsible for processing signaling processing related to user behavior. process. For example, after receiving the location update request message initiated by the user, the location update to the HLR is completed, and the account opening information of the user in the HLR is stored in the VLR; or, after receiving the call request message initiated by the user, the user is completed. Call control process.
  • the primary VLR pre-stores all user-related data in the MSC, and provides the signaling processing unit with service data required in the service processing process, that is, all the signaling processing units acquire the required information from the primary VLR.
  • Business data When the primary VLR fails and fails to operate normally, the standby VLR synchronized with the primary VLR data provides the service data required for the service processing.
  • the MSC node can implement self-tolerance and achieve the effect of the MSC Pool, wherein the signaling processing unit is equivalent to each traditional MSC in the MSC Pool.
  • the mechanism for message distribution is implemented in the front end of the node by using a signaling distribution unit, so that the MSC node shown in FIG. 3 can provide a unified interface and shield the internal multi-processing unit structure, thereby avoiding the influence on peripheral network elements such as BSC.
  • the data part in the traditional MSC can be extracted to form a common VLR, and the sharing of data between multiple signaling processing units can be realized, which can reduce the operation and maintenance workload.
  • the HLR only needs to maintain data of one MSC without separately maintaining data of multiple legacy MSCs.
  • the data storage unit may not be separately set, but the service processing unit performs the functions of the service processing and the data storage at the same time.
  • only one service distribution unit or one data storage unit may be set in the node that implements the self-discharge disaster.
  • the service handled by the service processing unit in the embodiment of the present invention refers to a generalized service, rather than a specific service.
  • the service processing unit in the traditional network element is generally used to process the specific service of the network element, and the service processing unit in the embodiment of the present invention processes all the services on the network element.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention concerne un procédé consistant à mettre en place une reprise sur sinistre qui consiste à : recevoir un message de demande de service, sélectionner une unité normale de traitement de service à partir d'au moins deux unités de traitement de service, les deux unités ou plus de traitement de service étant situées dans le même dispositif de nœud ; transmettre le message de demande de service à l'unité sélectionnée de traitement de service, et traiter le message de demande de service grâce à l'unité de traitement de service. Un dispositif de nœud comprend une unité de distribution de service pour distribuer des messages en utilisant un utilisateur en tant qu'unité et au moins deux unités de traitement de service, l'unité de distribution de service est utilisée pour sélectionner une unité normale de traitement de service à partir d'au moins deux unités de traitement de service, et transmettre un message de demande de service reçu à l'unité de traitement de service sélectionnée après la réception du message de demande de service ; l'unité de traitement de service est utilisée pour traiter le message de demande de service reçu. En utilisant l'invention, la reprise sur sinistre est mise en place dans une condition qui n'affecte pas les éléments de réseau ambiants.
PCT/CN2008/071845 2007-08-02 2008-08-01 Procédé et dispositif servant à mettre en place une reprise sur sinistre WO2009015613A1 (fr)

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CNA2007101380370A CN101360314A (zh) 2007-08-02 2007-08-02 一种实现容灾的方法及装置
CN200710138037.0 2007-08-02

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CN102438273B (zh) * 2011-12-28 2014-10-08 华为技术有限公司 集群网元间ip通信方法及相关装置和通信系统
CN104184611A (zh) * 2014-07-24 2014-12-03 华为技术有限公司 容灾站点、业务消息处理装置及方法
CN114745557B (zh) * 2022-03-22 2024-05-24 浙江大华技术股份有限公司 容灾操作的执行方法和装置、存储介质及电子装置

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