KR100282402B1 - Method of Distributing Subscriber Data in Visitor Locator - Google Patents

Abstract

The present invention relates to a distributed processing method of subscriber data in a subscriber location register in a mobile communication network. In particular, when a mobile terminal moves to a certain area, the visitor location register in charge of the area has a plurality of processing functions in the mobile communication switch. The present invention relates to a method for distributing subscriber data in a subscriber location register that is suitable for optimally distributing subscriber data in these processing function units when the processing unit is configured as a processing function unit. . Such a method of processing subscriber data distribution in a subscriber location register includes determining whether a visitor location register in a region is valid as a visitor location is located in an arbitrary region, and the characteristics of the visitor subscriber. And if the number is valid, determining whether the characteristic number of the visit subscriber is a distributed application object by modulo operation.

Description

Method of Distributing Subscriber Data in Visitor Locator

The present invention relates to a method for distributed processing of subscriber data in a subscriber location register in a mobile communication network. In particular, when a mobile terminal moves to a certain area, a visitor location register in charge of the area is located in the mobile communication switch. Method of distributing subscriber data in the visitor location register suitable for optimally distributing subscriber data in these processing function units in the case of two processing function units. It is about.

Hereinafter, a general mobile communication network will be described with reference to the accompanying drawings.

1 is a block diagram illustrating a general mobile communication network.

As shown in FIG. 1, a general mobile communication network is located between the mobile unit 1, which is a mobile phone, and the mobile unit 1 and the mobile switching center 4, and serves to change a signal format to be suitable for a wireless link and a wired link. And a plurality of base stations 2a (2b) ... 2n (hereinafter referred to as reference numeral 2) for measuring the received electric field strength (radio wave reception strength) of the mobile body 1 and providing it to the mobile switching center 4; , A means of access between each element of the base station 2 and the cell operator, management of the operation of the base station 2, management of the service state of the base station 2 hardware and software, allocation and configuration of resources for call traffic, A plurality of base station controllers 3a (3b) (3n) (hereinafter referred to as reference numbers) that perform functions such as establishing information on the operation of the base station 2, operating the base station 2, monitoring the sub-units related to monitoring and failures, and the like. Denotes 3) and provide circuit switched service to the mobile unit 1 Gajeok the function is composed of a channel switching (handoff) the mobile switching center (4) has a function.

At this time, in the mobile switching center 4, a home location register (HLR) 5, which is an in-network database that manages subscriber information, location information, and the like for the mobile unit 1, is configured.

In addition, a visitor location register (VLR) 6, which may or may not be located inside the mobile switching center 4 other than the home location register 5 and may serve two or more mobile switching stations 4, It is further provided.

At this time, the subscriber location register 6 temporarily stores the subscription data currently provided by the mobile switching center 4.

When a subscriber moves in a mobile communication network and is located in an arbitrary area, the subscriber registers the location registration to the visitor location register 6 in charge of the area, and the subscriber location register to the home location register 5 of the subscriber. The subscriber location information is reported through the mobile communication application protocol, and the profile of the subscriber is received from the home location register 5 to perform the service for the subscriber in the corresponding area.

Such a subscriber location register 6 has a feature that all the subscribers in the mobile communication network should be accommodated in terms of its function, and the generation and deletion of subscriber data on the database occurs very frequently.

In addition, the frequency of transactions such as location registration, call processing, and various additional services that must be processed by the subscriber location register 6 for the service for each subscriber registered in the subscriber location register 6 is very high. As a result, a load on the processing capacity of the central processing unit (CPU) is generated.

Therefore, when configuring the subscriber location register 6 in a large-capacity mobile communication exchange that must receive a large amount of subscriber data, it is possible to match communication with other processing functional units in the exchange. In addition, redundant, very large capacity processing units are required, which can be a costly factor, and it is not easy to flexibly configure the product as an economical product according to the needs of subscriber capacity.

Therefore, there is a need to configure the subscriber location register 6 using a plurality of processing functional units in the mobile communication exchange. If so, how should the subscriber data be distributed to the plurality of processing functional units? The problem has arisen.

The conventional method of distributing visitor subscribers is based on the following two methods for distributing subscriber data when the subscriber location register is composed of multiple processing functional units in a mobile switching center (MSC). Can be classified by the method.

The first method is to distribute the subscriber data to the designated processing function unit according to the first office code on the subscriber number, and to centrally manage the distribution principle in one processing function unit. The VLR is composed of 10 processing functional units, and is distributed to 10 functional processing units based on the last digit of the subscriber number.

The conventional visitor dispersion processing method has the following problems.

First, in the method of distributed reception according to the first station number on the subscriber number, the subscriber to be accommodated must be designated in advance by each station number for each processing functional unit constituting the subscriber location register. Subscribers who register their location with the registrant are generally random subscribers if they are not the home country of the exchange. Therefore, the number of subscribers roaming to the subscriber's location register in the area is pre-set by each station number. It is difficult to speci- fie to specify this, which may result in an overload condition on certain processing units and a low load on other processing units. In addition, if the centralization principle is centrally managed in one processing function unit, the frequency of transactions approaching the subscriber locator is very high, and thus the CPU processing capacity and other processing functions of the processing function unit at busy hours. There is a possibility that bottlenecks may occur in the communication processing capacity between units.

Second, in the method of distributing visitor subscribers to 10 processing functional units, the subscriber data is distributed evenly, but the number of processing functional units constituting the visitor location register is fixed to 10 so that the flexibility in subscriber capacity can be achieved. In addition, when it is necessary to concentrate some of the visitor location register functions in a specific processing unit, the processing unit causes processing bottlenecks, and as a result, the entire processing unit that constitutes the visitor location register. All of them resulted in a side effect of not being able to use the corresponding amount of treatment capacity.

The present invention has been made to solve the problems of the conventional subscriber location register as described above as a method for distributing subscriber data in a plurality of processing functional units in the visitor location register, country code, network code, Prefix method for determining processing function unit to be allocated according to prefix such as area code and station code, and modulo operation for subscriber number for equal distribution among processing function units to be distributed By adopting the modular operation method that decides the processing function unit to be allocated and the complex and multi-step method that mixes the prefix method and the modular operation method, the subscriber data is flexibly distributed and processed in the most suitable way for various mobile communication environments. Distributing Subscriber Data in Subscriber Locators Its purpose is to provide a treatment method.

The subscriber data distribution processing method in the subscriber location register comprises the steps of determining whether the visitor location register in the region is valid as the visitor location is located in an arbitrary region, and the characteristics of the visitor subscriber. And if the number is valid, determining whether the characteristic number of the visit subscriber is a distributed application object by modulo operation.

Preferably, the feature number is a country code, network code, area code and station number of the mobile identification number.

Preferably, when the feature number of the visit subscriber is a distributed application target by the modulo operation, the visit subscriber is allocated to the visitor processing function unit corresponding to the result of the modulo operation.

Preferably, if the feature number of the visit subscriber is not the target of the distributed application by the modulo operation, determining whether a processing function unit for the feature number of the visit subscriber is designated; and if the processing function unit is designated, And assigning the visit subscriber to the processing function unit.

Preferably, the step of determining whether the feature number of the visitor is valid, first, determine whether the country code is valid, and then determine whether the network code is valid, and then determine whether the area code of the mobile identification number is valid. And finally determining whether the station code is valid, and if the area code and the area code of the country code, the network code, the mobile identification number are valid according to the determination result, whether or not the target number is distributed by the modulo operation. The determination is made.

1 is a block diagram of a general mobile communication network

2 is a flowchart showing a method for processing subscriber data distribution in the subscriber location register according to the present invention.

Such a subscriber data distribution processing method in the subscriber location register of the present invention will be described with reference to the accompanying drawings.

First, by adopting a complex and multi-step method of distributing subscriber data in a plurality of processing functional units in the subscriber location register, subscribers can be flexibly selected in a manner most suitable for various mobile communication environments. The following method is used when distributing to multiple processing functional units.

The first method is to process the functional units by prefix on the subscriber number (IMSI) or the mobile station identification number (MSIN or MIN), i.e. country code, network code, area code (or network identification number) and country code. How to specify.

Until now, the country code has been standardized as 3 digits, network code 2 digits, and mobile identification number 10 digits.

According to the North American Standard (IS-95), the ten digits of the mobile identification number designate the area code and the next three digits the office code. The first three digits of the area code are used as the business number rather than the area code.

The second method performs a modulo operation on the subscriber number regardless of the prefix method as the first method, and distributes the subscriber data evenly to the distributed target processing function device according to the result value. It can be explained.

First, a predetermined number of digits in the back of the subscriber number is integerized, and the corresponding function is allocated based on the result of performing a modulo operation on the number of processing function units to be distributed.

For example, the subscriber number is N ₀ , N ₁ , N ₂ , N ₃ , NI ₄ , N ₅ , N _6, N ₇ , N _8, N ₉ , and modulated by modulating the last seven digits of the number. Suppose that we use the scheme of performing the method, and assuming that the number of processing functional units to be distributed is m, this subscriber receives r = (10 ⁶ × N ₃ + 10 ⁵ × N ₄ + 10 ⁴ × N ₅ + 10 ³ × N ₆ + 10 ² × N ₇ + 10 ¹ × N ₈ + N ₉ ) The MODm operation assigns to the processing functional unit corresponding to r.

The third method is a method using a combination of a first method, a prefix method, and a second method, a modulo operation method, which will be described below.

2 is a flowchart showing a subscriber data distribution processing method in the subscriber location register of the present invention.

In the subscriber data distribution processing method of the subscriber location register according to the present invention, as the visit subscriber is located in an arbitrary region as shown in FIG. Steps S10, S20, S30 and S40 of determining whether the number and station number are valid, and the country code, network code and area code of the subscriber are valid if the country code, network code, area code and country code are valid. And determining whether the station number is subject to the dispersion method by the modular operation (S11), S21, S31, and S41, and when the dispersion method is applied according to the determination result, according to the modular operation result. If the subscriber is registered in the functional unit (S50), and if it is not subject to the distribution method according to the determination result, the processing functional unit for the subscriber's country code, network code, area code, and station number is designated. (S12), (S22), (S32), (S42), and if the processing function unit is specified, assigning a subscriber to the processing function unit (S14) (S24) (S34) (S44). It is configured to include.

In this case, the area code is an area code or network identification number of the subscriber.

The subscriber data distribution processing method in the subscriber location register of the present invention stores the location of the mobile station (MS) in the subscriber location register (VLR) and the home location register (HLR). The mobile switching center (BCCH) of the Mobile Switching Center (BCCH) to know that the new location area has been entered, the mobile according to the subscriber number (IMSI (international mobile station identity or MIN) or TMSI (temporary mobile station identity) In order to optimize the registration of the subscriber's location, the mobile switching center needs to update the subscriber's location area. Determine whether the country code, network code, area code and country code of the mobile identification number .

At this time, it is first determined whether the country code (MCC: Mobile Country Code) is valid among the country code, network code, area code and station number of the mobile identification number (S10). In addition, the country code refers to the distribution rule table (not shown) in the country code (S1) to determine whether the country code of the visitor is valid. That is, it is determined whether the country code is registered in the distribution rule table.

If it is determined that the visitor's country code is not valid, the visitor's processing is discarded. In other words, the visitor will not be provided a service.

However, if it is determined that the country code of the visit subscriber is valid (S10), it is determined whether the country code of the subscriber is subject to the dispersion method by modulo operation (S11).

Determination result (S11) If the dispersion method by modulo operation is applied, the number of processing functional units (p) to be distributed by the modulo operation is checked (S50).

Next, the predetermined number of digits after the subscriber number is integerized (q) (S51).

Subsequently, the integer p is divided by the number p of processing functional units to be distributed by the modulo operation, and the remaining value r is obtained (S52).

The visit subscriber is assigned to the corresponding functional processing unit for the remaining value r by referring to the processing functional unit designation table based on the modulo operation result (S53) (S54).

However, if the determination result (S11) is not subject to the distribution method by the modulo operation, it is determined whether the processing function unit for the subscriber's country code is designated (S12).

If the processing function unit for the country code is designated according to the determination result (S12), the visitor is assigned to the processing function unit (S13).

However, in the case where the processing function unit for the country code (S12) is not specified, both the distributed processing by the area code (or network identification number) of the mobile network code (MNC) and the MSIN (or MIN) is performed. It is determined whether not to consider (S14).

If the determination result (S14) does not take into account both the mobile network code (MNC) and the distributed processing for the area code (or network identification number) of the MSIN (or MIN), referring to the distribution rule table for the station number (S4), It is determined whether the subscriber's station number is valid. (S40)

However, if the determination result (S14) considers both the mobile network code (MNC) and the distributed processing by the area code (or network identification number) of the MSIN (or MIN), the distributed processing by classification by the network code (MNC) is performed. It is determined whether not to consider (S15).

Judgment result (S15) If the distribution processing by classification by network code (MNC) is not considered, referring to the distribution rule table for the area code (or network identification number) of the MSIN (or MIN) (S3), the subscriber's area code (Or network identification number) determines whether it is valid (S30).

However, if the result of determination (S15) considers distributed processing by classification by network code (MNC), it is determined whether the visitor's network code is valid by referring to the distribution rule table by network code (MNC). (S20).

As a result of the determination (S20), if the visitor network code is not valid, the visitor's processing is discarded. In other words, the visitor will not be provided a service.

As a result of the determination (S20), if the visitor's network code is valid, it is determined whether the subscriber's network code is subject to a distribution method by modulo operation (S21).

If the determination result (S21) is applied to the distribution method by the modulo operation, the distribution processing of the visit subscribers is executed using the methods (S50), S51, S52, S53, and S54 described above.

However, if the determination result (S21) is not subject to the distribution method by the modulo operation, it is determined whether the processing function unit for the network code of the subscriber is specified (S22).

If the processing function unit for the network code is designated according to the determination result (S22), the visit subscriber is assigned to the processing function unit and processed (S23).

However, if it is determined in step S22 that the processing function unit for the subscriber's network code is not specified, it is determined whether or not distributed processing by classification by area code (or network identification number) of the MSIN (or MIN) is considered. )

If the determination result (S24) does not consider the distribution process by classification by region code (or network identification number) of the MSIN (or MIN), refer to the distribution rule table for the station number (S4). Determine (S40).

However, when considering the distributed processing by classification according to the area code (or network identification number) of the MSIN (or MIN) of the determination result (S24), the mobile station identification number (MSIN (Mobile Station Identification Number) or MIN (Mobile Identification Number)) is considered. The distributed rule table for the area code (or network identification number) or the subscriber number (INSI) is referred to (S3) to determine whether the visitor's area code (or network identification number) is valid (S30).

If the determination result (S30), the area code (or network identification number) of the visitor's mobile identification number is invalid, discard the visitor's processing. In other words, the visitor will not be provided a service.

However, in the determination result (S30), if the visitor's area code (or network identification number) is valid, it is determined whether the subscriber's area code (or network identification number) is subject to the distribution method by modulo operation. S31).

If the determination result (S31) is applied to the distribution method by the modulo operation, the visitor processing is performed using the methods (S50), S51, S52, S53, and S54 described above.

However, if the determination result (S31) is not subject to the distribution method by the modulo operation, it is determined whether the processing function unit for the area code (or network identification number) of the mobile identification number of the subscriber is specified (S32).

If the processing function unit for the area code (or network identification number) of the mobile identification number is determined (S32), the visitor is assigned to the processing function unit and processed (S33).

However, if the processing function unit for the area code (or network identification number) of the mobile identification number is not specified (S32), the visited subscriber is referred to the distribution rule table by the office code (S4). It is determined whether the station number is valid (S40).

As a result of the determination (S40), if the visited subscriber station number is invalid, the processing of the visited subscriber is discarded. In other words, the visitor will not be provided a service.

However, if it is determined in step S40 that the visitor's station number is valid, it is determined whether the subscriber's station number is subject to the distribution method by modulo operation (S41).

If the determination result (S41) is applied to the distribution method by the modulo operation, the visitor processing is performed using the methods (S50), S51, S52, S53, and S54 described above.

However, if the determination result (S41) is not subject to the distribution method by the modulo operation, it is determined whether the processing function unit for the subscriber's station number is designated (S42).

If the processing function unit for the station number is designated (S42), the visitor is assigned to the processing function unit and registered (S43).

However, if the processing function unit for the station number is not specified (S42), the processing of the visit subscriber is discarded.

At this time, the step of determining whether the area code (or network identification number) of the country code or network code and mobile identification number is valid (S10) (S20) (S30) is the area of each country code, network code and mobile identification number, respectively This applies if there is a system that requires distributed processing by number (or network identification number) classification.

That is, the first start (S100) is applied to a system requiring a distributed process by classification by country code, the second start (S200) does not require a distributed process by classification by country code, but the network Applied to a system that requires distributed processing by code classification, the third start (S300) does not require distributed processing by country code and network code classification, but the area code (or network) of the mobile identification number Applicable to systems requiring distributed processing by classification by ID number. In addition, the fourth start (S400) does not require distributed processing by classification by area code (or network identification number) of country code, network code, and mobile identification number, but requires distribution processing by classification by station number. Applies to systems.

The visitor location registration method according to the present invention has the following effects.

First, in the prefix method, subscribers are distributed to a plurality of processing function units by country code, network code, area code, and station code as well as station number, so that a specific processing function unit can easily prevent an overload or low load condition from occurring. Bottlenecks can be prevented in the communication processing capacity between functional units.

Second, when the visitor is distributed to the processing functional units in a modular manner according to the number of processing functional units, they are not limited to the number of processing functional units and can be distributed as evenly as possible. Flexible adaptability to various environments and economics, reliability and stability can be increased.

Claims (6)

Determining whether the visitor's location number is valid as the visitor's location number is located in a certain area; And if the feature number of the visitor is valid, determining whether the visitor's feature number is a decentralized application target by a modulo operation. The method of claim 1, wherein the feature number is a country code, a network code, an area code of a mobile identification number, and a country code. The method of claim 1, wherein when the feature number of the visitor is a distributed application target by the modulo operation, the visitor is allocated to the visitor processing function unit corresponding to the result of the modulo operation. A method for distributing subscriber data at a subscriber location register. The method as claimed in claim 1, further comprising: determining whether a processing function unit for the characteristic number of the visitor is designated if the characteristic number of the visitor is not a distributed application object by the modulo operation; And assigning the visited subscriber to the processing function unit if specified. 3. The method of claim 1 or 2, wherein the step of determining whether the feature number of the visitor is valid first determines whether the country code is valid, and then determines whether the network code is valid, and then identifies the mobile body. Determining whether the area code of the number is valid, and finally determining whether the area code is valid, and if the area code and the country code of the country code, network code, and mobile identification number are valid according to the determination result, modulo operation And determining whether to apply the distributed data according to the subscriber data distribution processing method. 4. The method of claim 3, further comprising: checking the number of functional processing units to be distributed by the modulo operation when allocating the subscriber to the corresponding processing functional unit according to the modulo operation result; Integer number of the last digit of the number; dividing the integer number of the back digit of the visitor number by the number of processing function units to obtain a remaining value; and the processing function unit according to the modulo operation result And assigning the visited subscriber to the processing function unit for the remaining values with reference to the subscriber data distribution processing method in the subscriber location register.