KR20040102833A - Method for terminating process of SMS - Google Patents

Abstract

PURPOSE: An SMS destination processing method is provided to prevent the discontinuation of a service to a subscriber by distributing a load of a specific LRP(Location Register Processor) which manages subscribers to different remaining LRPs when the specific LRP is failed to perform a normal function. CONSTITUTION: When a corresponding subscriber attempts SMS(Short Message Service) destination, SMS information of the corresponding subscriber is transferred from an SMC(SMS Center)(100) to an MS(300) via a VLR(Visitor Location Register)(200) of an SMC, and the MS(300) informs the SMC(100) that it has normally received SMS information of the subscriber via the VLR(200). In this case, the SMS message generated in the SMC(100) arrives at the VLR(200) via No.7 terminal, and the No, 7 would not send the corresponding message with a downed LRP. Thus, the SMS message would be received by a normal LRP. A TCAP(Transaction Capabilities Application Part) terminal of the LRP which has received the message checks an RLP state for processing the corresponding subscriber, and if the corresponding LRP is determined to have been down, processing of the corresponding SMS destination is attempted by one of the other nine processible LRPs. In order to search one of the nine LRPs, an LRP is searched by using the second number from the end of the corresponding subscriber. If the second number is identical to the end number of the corresponding subscriber, an LRP of the second number+1 is searched. If the second number is 9, an LRP00 is searched. If a state of the searched LRP is down, a normal LRP is searched as increasing the LRP number by 1 until the normal LRP is searched.

Description

Method for terminating process of SMS

The present invention divides the processing of subscribers into 10 Location Register Processors (LRPs) of the VLR (Visitor Location Register) in the exchange, and receives a Short Message Service (SMS) even when any LRP is down among the 10 LRPs. The present invention relates to a method of processing SMS incoming during LRP down to allow the function to be processed normally. More specifically, in a situation in which the VLR is composed of 10 LRPs, the management of subscribers that can be handled in the exchange is performed by 10 LRPs per subscriber number. In this case, if subscribers managed by a specific LRP are determined but the corresponding LRP is unable to perform its normal function, it is possible to prevent the service interruption of the subscribers in advance by distributing the load to the remaining LRP. SMS receiving processing method.

In general, a mobile communication system includes a mobile station (MS), a base station transceiver subsystem (BTS), a mobile service center (MSC), a visitor location register (VLR), and a home location register (HLR). ), An access switching processor (ASP), and a location register processor (LRP).

The mobile station is a mobile subscriber apparatus which can be mounted on a vehicle or carried by a user for terminating a radio line.

The base station connects a wireless line and a wired network line, and the wireless line can connect a plurality of mobile stations, and the wired network line modulates an analog signal into a digitized pulse signal (MSC) and PCM (pulse code modulation). It is connected as a channel, and consists of a control function for controlling the connection of a wired network line and a transmission function for terminating a wireless line.

The switch is a central part of the network and its main function is to provide a function for exchanging fixed network subscribers such as exchanges between mobile communication subscribers, mobile communication subscribers and public telephone switching networks, and general information communication networks. In order to perform this exchange function according to the call request of subscriber, it performs information exchange function with HLR and VLR that store subscriber information, and unlike general exchange, it has the function considering mobile characteristics of mobile subscriber. .

The VLR temporarily stores all the information about the mobile stations in the area it manages, and this information should be sent to the exchange at the request of the exchange when the mobile subscriber sets up the call. In addition, the information in the VLR must be constantly modified as the mobile station moves, and the data related to the HLR must always remain the same.

The HLR is a system for storing and managing subscriber parameters, location information, and the like for all mobile stations registered in its mobile communication network. At least one HLR must exist in each mobile communication network. In the HLR, important data such as access capability, basic service, and supplementary service of the mobile station must be registered, and a routing function is performed to the called subscriber.

The ASP represents a hardware block in which software for call processing is loaded and executed in a mobile communication exchange.

The LRP represents a hardware block in which software for the function of the VLR is loaded and executed.

On the other hand, in the system as described above, a typical current LRP structure is composed of 10 (LRP00 ~ LRP09).

In addition, each LRP is to distribute the load according to the processing of the LRP according to the end number of the subscriber, so if any LRP in the case of emergency in the case of the subscriber (the same end position) for processing by the corresponding LRP There was a problem that the SMS incoming function cannot be processed.

The exchange uses the subscriber's information stored in the VLR to process the SMS incoming. When any LRP storing the subscriber-specific information goes down, in the prior art, the SMS incoming processing function of the subscriber is suspended until the LRP survives. There was a problem.

Accordingly, the present invention is proposed to solve the above problems of the prior art,

An object of the present invention is to manage the management of subscribers that can be processed in the exchange in the situation where the VLR is composed of 10 LRP, divided into 10 LRP by subscriber number, wherein the subscribers managed by a specific LRP is determined, but the corresponding LRP In case of unable to perform the normal function, it is to provide SMS receiving processing method that can prevent the service interruption of the subscribers in advance while distributing the load to the remaining LRP.

The present invention for achieving the above object,

Determining whether the LRP is down by checking an SMS message reception status in the SMC;

If the determination result is normal, performs the SMS incoming processing to the corresponding LRP; and if the determination result is down, confirming whether the end digit and the second digit of the corresponding subscriber match;

If it does not match, determining the LRP as the second digit;

Checking whether the second digit at the end of the subscriber is '9' if the check result is identical;

Determining that the LRP is the second digit +1 when the check result is not '9';

If the check result is '9', determining the corresponding LRP as LRP00, and determining whether the determined LRP is down;

If the determination result is normal, the SMS incoming processing is performed with the corresponding LRP. If the determination result is down, the method comprises a step of continuously searching while increasing the LRP number by 1 until a normal LRP is found.

1 is a view showing a basic SMS incoming processing process according to the present invention,

2 is a view for explaining the state management for LRP in each LRP TCAP according to the present invention,

3 is a diagram illustrating an SMS incoming processing process when LRP down according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100 ..... SMS Center

200 ..... Visitor Location Register

300 ..... MS

Hereinafter, preferred embodiments of the "SMS incoming processing method" of the present invention according to the technical spirit as described above will be described in detail with reference to the accompanying drawings.

First, when the LRP is down, the present invention describes a function of performing subscriber SMS reception to be processed in the corresponding LRP to the remaining 9 LRPs.

A typical LRP structure is composed of 10 (LRP00 ~ LRP09), and each LRP is designed to distribute the load according to the LRP according to the end number of the subscriber, so that any LRP in case of emergency If it is down, it is not possible to process the subscriber (the same subscriber) with the LRP.

The present invention describes the following functions so that the SMS incoming function for the subscriber can be performed when a situation where any LRP is down, to compensate for the above problems. Process using only LRP).

First, SMS reception processing when a specific LRP is down is as follows.

1 is a diagram illustrating a basic SMS incoming processing process according to the present invention.

As shown, when the subscriber attempts to receive a Short Message Service (SMS), the subscriber's SMS information is transferred from the SMS Center (SMC) 100 to the mobile station 300 via the VLR 200 of the exchange. The mobile station 300 notifies the SMC 100 via the VLR 200 that the subscriber's SMS information has been normally received.

At this time, the SMS message generated by the SMC 100 arrives at the VLR which is the corresponding subsystem number of the corresponding signaling point in No. 7 stage. Do not send.

Therefore, you will receive SMS messages in the current normal LRP. The TCAP terminal of the LRP receiving the message checks the LRP state to process the subscriber, and if it is determined that the LRP is down, it attempts the SMS incoming processing with one of the nine LRPs that can be processed.

On the other hand, in the method of finding one of the nine LRP, in order to deliver the SMS message to the subscriber mobile station during the SMS incoming process, each LRP TCAP manages the LRP state and follows the following procedure.

A first process of finding an LRP using a second number at the end of the subscriber; a second process of finding an LRP of the second number +1 if the end number of the subscriber is identical to the second number; and the second process In the case where the second number = 9, a third process of finding LRP00 and a fourth process of finding a normal LRP while increasing the LRP number by 1 when the state of the found LRP is down.

In addition, the function in the LRP that is requested for the above processing,

Checking whether the requesting subscriber is a subscriber that has been processed in the LRP, performing existing processing if the end of the subscriber matches the LRP, and if the end of the subscriber does not match the LRP, the subscriber information is sent to QualRequest. It takes the process of receiving the incoming SMS, and delivers the result of SMS processing to the SMC, and after the above function is performed, the information on the subscriber is not stored in the LRP.

Meanwhile, in FIG. 1, before the VLR 200 notifies the SMS message, it is checked whether the state of the LRP is normal. At this time, if the status of the LRP is abnormal, the SMS message is notified after finding the LRP according to "SMS incoming processing when a specific LRP is down".

In addition, the LRP receiving the SMS incoming processing request confirms receipt of the SMS message after processing by the VLR according to "SMS incoming processing when a specific LRP is down".

2 is a view for explaining the state management for LRP in each LRP TCAP according to the present invention.

As shown in the figure, the status management of the LRP checks the LRP status every 10 seconds in the SSC (System Status Control) 400, when the change in the LRP status, when notified to the TCAP 500, the TCAP 500 Notifies the change to the ASP 600. At this time, the information is stored in the TCAP 500.

3 is a diagram illustrating an SMS incoming processing process during LRP down according to the present invention, and shows a process of finding an alternative LRP during LRP down.

As shown in the figure, the SMC checks the SMS message reception status to determine whether the corresponding LRP is down (ST11) (ST12), and if the determination result is normal, perform SMS incoming processing to the corresponding LRP (ST13), Determining if the end digit and the second digit of the subscriber coincide with each other when the determination result is down (ST14); and determining the corresponding LRP as the second digit when the confirmation result does not match (ST15); If the result matches, check whether the second digit is '9' at the end of the subscriber (ST16); if the check result is not '9', determining the corresponding LRP as the second digit +1 (ST17); If the check result is '9', determining the corresponding LRP as LRP00 (ST18), and determining whether the determined LRP is down (ST19); and if the determination result is normal, performs SMS incoming processing to the corresponding LRP (ST13). And said plate If the results down by increasing the number of LRP by one until you find the normal LRP a step (ST20) Looking continuously.

As described above, in the detailed description of the present invention, specific embodiments of the SMS incoming processing method will be described. However, the present invention may be modified in various ways without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

According to the present invention "SMS incoming processing method" described above,

In the situation where the VLR is composed of 10 LRPs, the management of subscribers that can be processed in the exchange is divided into 10 LRPs for each subscriber number. At this time, the subscribers managed by a specific LRP are determined, but the LRP performs normal functions. If it is not possible, the load is distributed to the remaining LRP, which has the advantage of preventing the service interruption of the corresponding subscribers.

In addition, when a situation in which any LRP is down while the service is in progress at the exchange occurs, in the conventional case, the end of the subscriber number that attempts to roam with the subscribers who are registering the location at the corresponding LRP and the corresponding exchange Although the SMS receiving function for the same subscriber is suspended until the LRP is revived, the present invention has the advantage of being able to try the continuous SMS receiving function to maintain the service for the subscriber.

Claims (1)

In the method of processing SMS incoming in mobile communication system, Determining whether a corresponding LRP (Location Register Processor) is down by checking a short message service (SMS) message reception status in an SMS center; If the determination result is normal, performing the SMS incoming processing to the corresponding LRP; and if the determination result is down, checking whether the end digit of the subscriber and the number of the second digit match; Determining the LRP as the second digit when the check result does not match; Checking whether the second digit at the end of the subscriber is equal to '9' if the check result matches; Determining that the LRP is the second digit +1 when the check result is not the same; If the check result is the same, determining the corresponding LRP as LRP00 and determining whether the determined LRP is down; If the determination result is normal, the SMS incoming processing is performed with the corresponding LRP; and if the determination result is down, the SMS incoming processing method comprising the step of continuously searching while increasing the LRP number by 1 until a normal LRP is found. .