KR20080039611A - Method for call processing of subscribed terminal in ota service - Google Patents

Abstract

A method for processing a subscribing terminal call in an OTA(Over The Air) service is provided to offer the optimum OTA service by minimizing an unnecessary interface portion in executing the call processing of a subscribing terminal. In case a terminal makes a location registration request(ST21), an SGSN(Serving GPRS Support Node) judges whether the terminal is a generic terminal or a temporarily opened terminal(ST22). If the terminal is a generic terminal, the SGSN makes a request to an HLR(Home Location Register) so that the location registration of the terminal can be successfully made(ST23). If the terminal is a temporarily opened terminal, however, the SGSN transmits a location registration fail message to the terminal, and requests the terminal to execute location registration to an MSC(Mobile Switching Center) server(ST24,ST25). Based on the request from the SGSN, the terminal makes a location registration request to the MSC server, and activates an OTA(ST26).

Description

Method for call processing of subscribed terminal in OTA service}

1 is a block diagram of a system for a general OTA service,

2 is a flowchart illustrating a subscription terminal call processing method in a conventional OTA service;

3 is a flowchart illustrating a subscription terminal call processing method in an OTA service according to an embodiment of the present invention;

4 is a flowchart illustrating a subscription terminal call processing method in an OTA service according to another embodiment of the present invention;

5 is a conceptual diagram illustrating an example in which the present invention is applied to call processing in an OTA server;

6 is a conceptual diagram illustrating an example in which the present invention is applied to a UCMS server.

** Description of the symbols for the main parts of the drawings **

10: terminal

20: Serving GPRS Support Node (SGSN)

30: MSC (Mobile Switching Center) server

40: HLR (Home Location Register)

50: OTA (Over The Air)

60: UCMS (USIM Card Management System)

The present invention relates to an over-the-air (OTA) system, and in particular, a subscriber station in an OTA service that is suitable for providing an optimized OTA service by performing a call processing of a subscriber station by minimizing unnecessary interworking parts when performing an OTA service. It relates to a call processing method.

In general, over-the-air (OTA) is a new technology that enables open marketing of mobile operators, allowing mobile subscribers to directly call the carrier's call center to open terminals or add new services. It is a network infrastructure system that provides a network environment for changing services. Therefore, the subscription channel through the existing agency or dealer should be opened after the subscribers visit in person and purchase the terminal.However, the subscriber opening through OTA eliminates the inconvenience that the subscriber has to go to the subscription terminal point. It is effective in increasing subscribers.

The service using the OTA may be able to change or upgrade the software stored in the memory of the terminal as well as the service change in the existing network.

The subscriber using the new or modified opening terminal should experience the inconvenience of having to visit the agency or the A / S center with the existing system when the service needs to be changed.

In the case of changing the phone number, there is a problem of filling out the form and submitting it, which is a service providing method that does not alleviate the inconvenience of subscribers. However, when OTA is activated, subscribers can easily change services by phone.

Just call and tell the agent the number you want and your personal details, or simply press the button as directed by the ARS.

1 is a block diagram of a system for a general OTA service.

Where reference numeral 10 is a terminal, 20 is a Serving GPRS Support Node (SGSN), 30 is a Mobile Switching Center (MSC) server, 40 is a Home Location Register (HLR), and 50 is an Over The Air (OTA) server. , 60 is a UCMS (USIM Card Management System).

The SGSN 20 provides a service for a node that provides a general packet radio service (GPRS). GPRS is also proposed as an intermediate step of packet exchange for high-speed data transmission in GSM (Global System for Mobile Communication) and TDMA (Time Division Multiple Access) based networks. It manages the traffic of packet switching. GPRS uses eight time slots on a 200KHz channel and can provide IP (Internet Protocol) -based packet data services at speeds of about 115Kbps.

Two major additional foundations are SGSN and Gateway GPRS Support Node (GGSN). GPRS packetizes user data and transmits it using an IP backbone, and GGSN acts as a gateway between the GPRS network and other packet-based networks, as in the Internet.

GGSN also interfaces with other GPRS networks to provide GPRS roaming. SGSN 20 was also considered as a mobile switching center. This enables the maintenance of mobility by maintaining the path of all mobile stations on the network and provides mobile data packet routing of the SGSN service area.

The SGSN 20 is responsible for data packet transmission with the terminal 10 in the service area, performs functions such as packet routing and transmission, mobility management, logical link management, authentication, and charging, and the like of the SGSN 20. The register stores the location information (cell, visitor location register, etc.) of the GPRS user registered in the SGSN 20, the International Mobile Station Identity (IMSI), which is a user profile, and the like.

In addition, the MSC server 30 performs call control and performs control functions for a base station (not shown) and a control station (not shown). It also performs billing and statistics, and interfaces between the control station and other external networks.

In addition, the HLR 40 manages subscriber mobility in the mobile communication network, and manages call processing and location information of the subscriber station 10. When managing the mobility of the subscriber terminal 10 in the mobile communication network, the MSC server 30 enables the mobile subscriber to the terminal 10 through the interworking with the HLR (40).

In addition, the HLR 40 manages a telephone number, terminal serial number, call processing routing information, authorization information, and various additional service information for the subscriber terminal 10 in its own database.

The UCMS 60 also manages a Universal Subscriber Identity Module (USIM) card. The USIM is a smart card inserted into the terminal 10 of WCDMA (Wideband-Code Division Multiple Access, Asynchronous 3G Mobile Communication), and implements various functions such as user authentication, global roaming, and electronic commerce on a single card.

The smart card specification for 3G mobile communication (IMT-2000) is divided into smart card platform Universal IC Card (UICC) irrespective of technology method and specification according to each technology method that application is to be accepted. It is designed to accommodate smart card applications in other industries, such as finance.

2 is a flowchart illustrating a subscription terminal call processing method in a conventional OTA service. This shows the OTA activation call processing procedure. Here, OTA Activation performs a process of opening a 3G / world phone terminal using a USIM card by registering a terminal location and newly opening a USIM card write by sending SMS data through the OTA server 50. Say

The new terminal 10 performs an attach request with the SGSN 20 (ST1).

SGSN 20 makes a location registration request (Update GPRS Location) to HLR 40 (ST2).

Since the terminal 10 is a new terminal, the HLR 40 transmits a location registration request failure (GPRS Subs Unknown (= 1)) signal to the terminal 10 through the SGSN 20 (ST3).

Accordingly, the terminal 100 retries the location registration to the MSC server 30 (Attach Request) (ST4).

Then, the MSC server 30 makes a location registration request (Update GPRS Location) to the HLR 40 (ST5).

When the location registration of the new terminal 10 is performed, the HLR 40 notifies the OTA 50 to the SMS (Short Message Service). At this time, PMIN (PseudoMIN, Mobile Identification Number (MIN) signal and OTASP (Over The Air Service Provisioning) signal, which are initially entered and issued to the card for performing OTA activation, are transmitted (ST6). ).

OTASP automatically registers the terminal 10 through a wireless network, and also enables software functions to be upgraded.

The OTA 50 transmits a Submit Noti (PMIN, OTASP) signal to notify the PMIN and OTASP to the UCMS 60 (ST7) and receives a Delivery Request (TMSISDN, PIMSI) signal from the UCMS 60 (ST8). ).

Here, TMSISDN (TrueMSISDN) is an MSISDN (Mobile Subscriber ISDN Number) used for actual call processing, and PIMSI (PseudoIMSI) is an IMSI (International Mobile Station Identity) that is initially entered and issued to a card to perform OTA activation.

The OTA 50 inquires the location information to the MSC server 30 (ST9).

In addition, the OTA 50 transmits an SMSPP (SMS Delivery Point To Point) message to the MSC server 30 (ST10), and then receives an smdpp signal from the MSC server 30 (ST11).

The MSC server 30 performs data delivery to the terminal (ST12).

However, such a prior art has a problem in that there is a possibility that the quality of the system is reduced because there is an unnecessary interworking part when performing the OTA service, and the cost for system expansion may be added by the unnecessary interworking part when the traffic increases.

Accordingly, the present invention has been proposed to solve the conventional problems as described above, an object of the present invention can provide an optimized OTA service by performing the call processing of the subscriber station by minimizing unnecessary interworking part when performing the OTA service. The present invention provides a method for processing a subscription terminal call in an OTA service.

In order to achieve the above object, a method for processing a subscription terminal call in an OTA service according to an embodiment of the present invention, if a location registration is requested from the terminal to the SGSN, is SGSN requesting the location registration terminal is a general terminal; A first step of determining whether or not the temporary opening terminal; When the terminal is a general terminal, the SGSN requests the location registration to the HLR so that the location registration of the general terminal is performed so that the location registration is successful, if the terminal is a provisional terminal, the SGSN is the terminal A second step of informing a location registration failure to request a location registration with the MSC server; And a third step of allowing the terminal, which has been requested to register a location from the SGSN to the MSC server, retries the location registration to the MSC server and activates the OTA. It is characterized by the technical configuration of performing.

Hereinafter, an embodiment of the present invention as described above, according to the technical spirit of the method for processing a subscription terminal call in an OTA service will be described with reference to the accompanying drawings.

3 is a flowchart illustrating a subscription terminal call processing method in an OTA service according to an embodiment of the present invention.

As shown in this, when the terminal 10 is to register the location, SGSN 20, the first step (ST21, ST22) to determine which terminal the terminal 10; If the terminal 10 is a general terminal, SGSN 20 has a second step (ST23) to ensure that the location registration is successful; If the terminal 10 is a provisional opening terminal, the SGSN 20 notifies the terminal 10 of the location registration failure, allows the terminal 10 to register the location to the MSC server 30 and enables the OTA 50 to be activated. Three stages (ST24 to ST26); It characterized in that to perform including.

The first step is characterized by using the IMSI information of the SIM transmitted from the terminal 10 to determine whether it is a normal terminal or an opening terminal.

The first step is characterized in that the terminal 10 is determined to be an opening terminal when the IMSI information is registered in the form of "600XXXX" or "700XXXX".

4 is a flowchart illustrating a subscription terminal call processing method in an OTA service according to another embodiment of the present invention.

As shown in the drawing, when the terminal 10 requests an attach request, the SGSN 20 registers a location request failure and the CS (circuit switching) on the terminal 10. An eleventh step (ST31, ST32) to request a request; After the eleventh step, the terminal 10 retries the location registration with the MSC server 30 and performs the twelfth step (ST33 to ST41) to activate the OTA; It characterized in that to perform including.

The subscriber terminal call processing method in the OTA service includes new subscription / change processing of 3G / world phone terminals, new / change processing of digital multimedia broadcasting (DMB) subscription terminals, or PRL (preferred roaming) for international loading. List) It is characterized in that it is applied to at least one of data transmission processing, wireless data always on / off control (Always On / Off Control) transmission processing.

Referring to the accompanying drawings, preferred embodiments of the method for processing a subscriber station call in the OTA service according to the present invention configured as described above will be described in detail as follows.

In the following description of the present invention, if it is determined that detailed descriptions of related well-known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to intention or precedent of a user or an operator, and accordingly, the meaning of each term should be interpreted based on the contents throughout the present specification. something to do.

First, the present invention is to provide an optimized OTA service by performing call processing of a subscriber station by minimizing unnecessary interworking parts when performing an OTA service. In other words, the conventional OTA subscription procedure is performed through various systems, and accordingly, quality degradation and system expansion due to traffic are required. In order to minimize the problems according to the present invention to simplify the procedure for subscribing to a mobile phone system through the OTA.

That is, when viewed from the system side, MAP operation (Operation) between the SGSN 20 and the HLR 40 occurs each time the subscription, the present invention was to enable the service without going through this step.

3 and 4, if the terminal 10 intends to register the location (ST21), the SGSN 20 determines which terminal the terminal 10 is.

SGSN 20 uses the IMSI information of the SIM transmitted from the terminal 10 to determine whether it is a general terminal or a provisional opening terminal.

That is, when the provisional opening terminal registers the location of the IMSI information stored in the initial SIM in the form of "600XXXX" or "700XXXX", the general terminal registers the location of the IMSI information in the form of "450059112110001", for example. .

When SGSN 20 receives a location registration request, the SGSN 20 can distinguish between a provisional opening terminal and a general terminal using IMSI information.

In the case of the provisional opening terminal using the delimiter as described above, if the location registration failure message is sent to the terminal 10 without asking the location registration request to the HLR 40, the terminal 10 from the terminal 10 to the MSC server 30. OTA activation is possible while registering location.

In addition, the SGSN 20 transmits a location registration failure message and a request to attach to the CS to the terminal 10 when the provisional communication terminal is open.

Here, CS is line switching, and CS call refers to a method in which a call is made while a circuit is connected like a conventional telephone. Therefore, the terminal using the CS call (Call) is connected to the MSC server 30 receives a call control signal. The MSC server 30 is a switching center for connecting terminals using CS calls.

Since the operation after location registration is the same as in the prior art, the description thereof is omitted.

5 is a conceptual diagram illustrating an example in which the present invention is applied to call processing in an OTA server.

The Customer Oriented Information System (COIS) is a system that performs data communication through a terminal and an intranet network, makes a database of computerized input information, and uploads specific information necessary for opening to a mobile communication network, and an MSS (Messaging System Server) DMB subscriber management server.

When a new / change input is made to a provisional opening terminal in a COIS or a sales center, download data is transmitted to the OTA 50 via TCP / IP through UCMS 60 or MSS.

The OTA 50 performs subscriber location lookup with the HLR 40 and requests transmission of SMS data to the MSC 30. Then, MSC servers (2G, 2G, 1X, etc.) (eg, 3G / world phones, DMB terminals, etc.) can be controlled through BSC (Base Station Controller, Control Station) and BTS (Base Transceiver Station). 10) send SMS.

Accordingly, in the SIM card included in the terminal 10 such as 3G / world phone or DMB terminal, data is downloaded and a new subscription / modification process of the 3G / world phone terminal, a new / change process of the DMB subscription terminal, or a PRL for international loading Data transmission processing, wireless data always on / off control transmission processing, and the like.

6 is a conceptual diagram illustrating an example in which the present invention is applied to a UCMS server.

The UCMS 60 is a system that provides a USG card management function newly introduced from a 3G (3 Generation) terminal and a 1X world phone.

It manages order / delivery of USIM card, subscriber management such as new opening or change processing, and OTA activation processing.

UCMS information includes ICCID (Integrated Circuit Card Identification), MDN (Mobile Directory Number), TRUE and MIN (Mobile Identification Number) with temporary values, ESN (Electronic Serial Number) Number), IMEI (International Mobile Equipment Identification), social security number, personal identification number (PIN), and other information.

The present invention also applies to such a UCMS 60 server.

As such, the present invention provides an optimized OTA service by performing call processing of a subscriber station by minimizing unnecessary interworking parts when performing an OTA service.

As described above, the method for processing a subscriber station call in an OTA service according to the present invention has an effect of providing an optimized OTA service by performing call processing of a subscriber station by minimizing unnecessary interworking parts when performing an OTA service. do.

Therefore, the present invention reduces the possibility of quality deterioration by minimizing unnecessary interworking parts, and has an effect of minimizing the cost for system expansion when traffic increases.

Although the above has been described as being limited to the preferred embodiment of the present invention, the present invention is not limited thereto and various changes, modifications, and equivalents may be used. Therefore, the present invention can be applied by appropriately modifying the above embodiments, it is natural that such applications also fall within the scope of the present invention based on the technical idea described in the claims.

Claims (3)

If a location registration is requested from the terminal to the SGSN, a first step of the SGSN determining whether the terminal requesting the location registration is a general terminal or a provisional opening terminal; When the terminal is a general terminal, the SGSN requests the location registration to the HLR so that the location registration of the general terminal is performed so that the location registration is successful, if the terminal is a provisional terminal, the SGSN to the terminal Notifying the location registration failure and requesting location registration with the MSC server; And A third step of requesting location registration from the SGSN to the MSC server by retrying location registration from the MSC server and activating the OTA; Subscriber terminal call processing method in the OTA service, characterized in that performed. The method of claim 1, In the first step, The SGSN uses the IMSI information of the SIM transmitted from the terminal to determine whether the terminal is a general terminal or an opening terminal. The method according to claim 1 or 2, Subscriber terminal call processing method in the OTA service, It is applied to one or more of the new subscription / change processing of the 3G / world phone terminal, the new / change processing of the DMB subscription terminal, PRL data transmission processing for international loading, wireless data always on / off control transmission processing Subscriber terminal call processing method in OTA service.

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