CN1302674C - Short-message center load sharing and disaster-tolerance realizing method - Google Patents

Abstract

A method for implementing short message center load sharing and disaster recovery. Multiple short message centers use one short message access number to access the signaling network through access equipment; the access equipment expands the short message access number, and the expanded number Corresponding to each short message center respectively; for the signaling message sent from the signaling network that the called global code is the short message access number, the access device performs load sharing, and converts the called global code in the message to the extended number, and send the message to the corresponding SMS center for processing according to the extension number. The present invention realizes load sharing and disaster recovery of services among multiple short message centers, improves network reliability, not only solves the capacity bottleneck problem of a single short message center, but also uses the same access number for multiple short message centers, In this way, there is no need to modify the office data of other devices during expansion, and the network adjustment is simple and the expansion is convenient.

Description

Realization Method of Load Sharing and Disaster Recovery in Short Message Center

technical field

The invention relates to the technical field of mobile communication, in particular to a method for realizing load sharing and disaster recovery of a short message center (SMSC).

Background technique

With the development of mobile services, especially the rapid development of short message services, the capacity requirements of the short message center (SMSC) are getting higher and higher. How to solve the capacity and security problems of the short message center has become a key issue for the further development of short message services. an important subject.

The expansion of the existing short message center can adopt the following two schemes:

(1) Expansion is carried out on a short message center SMSC to improve processing capability.

The problem with this capacity expansion scheme is that since a single large-capacity short message center undertakes all short message services, when a failure occurs due to network or equipment reasons, the impact on the business will be very large, making short messages in the entire region Business is affected. Moreover, the short message center equipment has a capacity limit, and can only achieve limited expansion.

(2) Multiple short message centers SMSC are configured, and each short message center undertakes part of services independently.

Although this expansion scheme breaks through the limitation on the expansion of short message center equipment, each short message center needs to be configured with a short message access number, so that all mobile switching centers (MSC) need to implement multiple short message center access For the GT (Global Code) data of the number, the mobile operator needs to bind the short message center number with the SIM (customer identification card), which makes the network data configuration very complicated; moreover, because each short message center works independently, there are short message center resources Due to the problem of uneven utilization, disaster recovery and load sharing cannot be realized among the short message centers, that is, multiple independent short message centers cannot handle business together. When an independent short message center fails, the rest of the short message centers cannot bear the failure The business of the short message center, these independent short message centers work with poor reliability.

Contents of the invention

The technical problem to be solved by the present invention is: to overcome the problems of complex network data configuration, uneven utilization of short message center resources, and poor reliability in the expansion of the existing short message center, and to provide a realization of short message center disaster recovery and load sharing method, thereby simplifying the data configuration during network expansion and improving the reliability of the short message center.

The technical scheme that the present invention adopts for solving the problems of the technologies described above is:

The realization method of this short message center load sharing and disaster recovery includes the following steps:

Multiple Short Message Centers (SMSCs) use one SMS access number to access the signaling network through the access device;

The access device expands the access number of the short message, and the extended number corresponds to each short message center respectively;

For the signaling message that the called global code sent from the signaling network is the SMS access number, the access device performs load sharing, converts the called global code in the message into an expanded number, and according to the expanded The number sends the message to the corresponding short message center for processing.

The plurality of short message centers use one short message access number to access the signaling network respectively through two access devices, and the access devices are connected through signaling links to realize the backup of signaling message routing.

When the short message center equipment fails or the link group with the access equipment fails, the access equipment distributes the business of the short message center to the normal working short message center for processing.

According to the incoming link/link group of the message, the load sharing of the service can be carried out, and the message originating from the mobile station from the specified link/link group can be allocated to the designated short message center for processing; or according to the source signaling in the message Point code (OPC) for business load sharing, assigning the mobile station originating message from the designated OPC to the designated short message center for processing; or carrying out business load sharing according to the signaling link selection code (SLS) in the message , distribute the message originating from the mobile station of the specified SLS to the designated short message center for processing; or perform service load sharing according to the calling global code (GT) in the message, and distribute the message originating from the mobile station specifying the calling GT Assigned to the designated short message center for processing.

The access device may be a signaling transfer point (STP).

The beneficial effects of the present invention are: using the short message disaster recovery and load sharing method of the present invention, the same short message access number is processed by multiple independent short message centers for load sharing, and a flexible load sharing strategy is adopted to realize multiple short message access numbers. The load among the message centers is even, which realizes the load sharing and disaster recovery of the business among multiple short message centers, and improves the network reliability. Multiple short message centers use the same access number, so that there is no need to modify the office data of other devices during capacity expansion, and the network adjustment is simple and capacity expansion is convenient.

SMS load sharing and disaster recovery access devices can be set in pairs, which realizes the backup of signaling message routing and can further improve network reliability. The function of SMS load sharing and disaster recovery access equipment can be integrated with STP equipment, which can make the network structure simple, without adding new network nodes, only need to modify and upgrade the original STP.

Description of drawings

Fig. 1 is a schematic diagram of the network structure of the short message load sharing and disaster recovery access equipment of the present invention;

Fig. 2 is a schematic diagram of the network structure of the paired short message load sharing and disaster recovery access equipment of the present invention;

Fig. 3 is a schematic diagram of a network structure in which the functions of the SMS load sharing and disaster recovery access device and the STP device are integrated.

Detailed ways

Below according to accompanying drawing and embodiment the present invention will be described in further detail:

The present invention provides a method for realizing service load sharing and disaster recovery between multiple short message centers using one short message access number.

As shown in Figure 1, it is a schematic diagram of the network structure of short message load sharing and disaster recovery access equipment of the present invention, adding short message load sharing and disaster recovery access equipment before a plurality of short message centers SMCS1, SMSC2,..., SMSCn, The short message load sharing and disaster recovery access device implements service load sharing of multiple short message centers. When one of the short message center SMSC equipment fails or the link group between the short message load sharing and disaster recovery access device and a short message center SMSC fails, the short message disaster recovery and load sharing access device realizes the short message center Disaster recovery between short message load sharing and disaster recovery access equipment to share business to the normal short message center for processing, to achieve disaster recovery between short message centers, without affecting all short message services. Multiple short message centers SMCS1, SMSC2, ..., SMSCn share the same short message access number, and only make GT (global code) data of one short message access number for other network nodes.

Assuming that the SMS access number in a certain area is 8613800755500, the SMS access number is expanded in the SMS load sharing and disaster recovery access device. As in Figure 1, the SMS access numbers of each SMSC are expanded to:

SMSC1 861380075550001

SMSC2 861380075550002

SMSC3 861380075550003

...

The short message load sharing and disaster recovery access device intercepts the signaling message with the called GT 8613800755500 and type MO (Mobile Originated) sent from the external network. Convert the called GT in the message to 861380075550001, 861380075550002, ... according to the load sharing rule; then send the message to the designated SMSC1, SMSC2, ..., SMSCn.

In order to realize that the short message service load handled by multiple load-sharing SMSCs is even, the load-sharing rules of the business can be carried out according to the following conditions:

(1) The incoming link/link group of the message

The MO message from the specified link/link group can be allocated to the specified SMSC for processing.

(2) OPC (Source Signaling Point Code) in the message

According to the MO message from the designated OPC, it can be assigned to the designated SMSC for processing.

(3) SLS (Signaling Link Selection Code) in the message

According to the MO message of the designated SLS, it can be assigned to the designated SMSC for processing.

(4) Calling GT (global code) in the message

The MO message from the designated calling GT can be distributed to the designated SMSC for processing.

When one or some SMSCs for load sharing are unreachable, the short message load sharing and disaster recovery access equipment will switch over the business evenly, and load share the business among the available SMSCs to realize the disaster recovery function of the short message center . As shown in Figure 1, if SMSC1 fails, all short message services are load-shared among the remaining normal SMSC2-SMSCn.

Using the above SMS disaster recovery and load sharing method, multiple SMS centers for disaster recovery and load sharing have the same configuration data and GT data of the same SMS center, and for other network nodes and users, there is only one SMS access number . In this way, there is no need to modify the office data of other devices during capacity expansion, and the network adjustment is simple.

SMS load sharing and disaster recovery access devices can be set in pairs to further improve network reliability. As shown in Figure 2, a pair of short message load sharing and disaster recovery access devices are set before multiple SMSCs, and the paired short message load sharing and disaster recovery access devices work in a load sharing mode. A signaling link is established between paired SMS load sharing and disaster recovery access devices to realize the backup of signaling message routing. When one SMS load sharing and disaster recovery access device fails, the other SMS load sharing and disaster recovery The access device undertakes all services, which improves the reliability of the network.

The SMS load sharing and disaster recovery access device can be combined with the STP (Signaling Transfer Point) of the live network into one device. As shown in Figure 3, the functions of SMS load sharing and disaster recovery access equipment are included in the functions of STP equipment, and STP is transformed into a device with SMS load sharing and disaster recovery functions. This networking method can make the network structure simple, without adding new network nodes, only need to modify and upgrade the original STP.

Using the short message disaster recovery and load sharing method of the present invention, the same short message access number is processed by multiple independent short message centers for load sharing, using link/link group, OPC, SLS or caller GT as load sharing Rules to achieve uniform business among multiple short message centers, realize load sharing and disaster recovery of business among multiple short message centers, solve the problem of single short message center capacity bottleneck, not only break through the expansion limit of the network, but also due to Multiple short message centers use the same access number, so there is no need to modify the office data of other devices during capacity expansion, and the network adjustment is simple.

Claims (8)

1, the implementation method of a kind of short message service center's load sharing and disaster tolerance is characterized in that, may further comprise the steps:

A plurality of short message service centers adopt a note access code, by access device access signaling network;

Described access device is expanded the note access code, and expansion number is corresponding with each short message service center respectively;

To the called global sign indicating number of sending from signaling network is the signaling message of this note access code, described access device carries out load sharing, called global sign indicating number in the message is converted to number after the expansion, according to this expansion number message is sent to corresponding short message service center and handle.

2, the implementation method of short message service center's load sharing according to claim 1 and disaster tolerance, it is characterized in that: described a plurality of short message service centers adopt a note access code by two access devices difference access signaling networks, connect by signaling link between the access device, realize the backup of signaling message route.

3, the implementation method of short message service center's load sharing according to claim 1 and 2 and disaster tolerance, it is characterized in that: when the equipment fault of described short message service center or and access device between the link group fault time, access device is shared the business of this short message service center in the short message service center working properly and being handled.

4, the implementation method of short message service center's load sharing according to claim 3 and disaster tolerance, it is characterized in that: carry out professional load sharing according to the incoming link/link group of message, handle to the short message service center of appointment the mobile-originated distribution of messages that given link/link group is come.

5, the implementation method of short message service center's load sharing according to claim 3 and disaster tolerance, it is characterized in that: carry out professional load sharing according to the OPC Origination Point Code in the message, handle to the short message service center of appointment the mobile-originated distribution of messages that the assigned source signaling point code comes.

6, the implementation method of short message service center's load sharing according to claim 3 and disaster tolerance, it is characterized in that: carry out professional load sharing according to the signaling link selection in the message, will specify the mobile-originated distribution of messages of signaling link selection to handle for the short message service center of appointment.

7, the implementation method of short message service center's load sharing according to claim 3 and disaster tolerance, it is characterized in that: carry out professional load sharing according to the caller global title in the message, handle to the short message service center of appointment the mobile-originated distribution of messages of specifying the caller global title.

8, the implementation method of short message service center's load sharing according to claim 3 and disaster tolerance is characterized in that: described access device is a Signalling Transfer Point.

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