KR20000037979A - Emergency call service provision method in mobile communication system - Google Patents

Abstract

PURPOSE: A method for serving an emergency call in a mobile communication system is provided to offer a hot line telecommunication with a service provider at a minimum distance from the current location of a subscriber, by making and managing a database, storing the information of the service provider that can respond to the emergency call, by a cell that a base station in an exchange controls. CONSTITUTION: If a set up message is sent out from a subscriber terminal to which a wireless resource is allocated, the sent message is analyzed(202). If the sent message is related to the emergency call(204), a base station identifier(BS ID) for controlling the subscriber terminal is extracted(206). A database is searched using the BS ID(208), and a service provider number, having a highest priority and corresponding to the BS ID, is read out(210). A signal arrival is requested using the read service provider number(212). If a busy signal is received(214), the database is searched again based on the BS ID and the service provider number having a second priority is read out(216). A signal arrival is requested, and a hot line telecommunication path between the terminal and service provider is set up if a normal response to the signal arrival occurs(218-222).

Description

Emergency call service provision method in mobile communication system

The present invention relates to an emergency call service providing method in a mobile communication system, and in particular, an emergency call service providing method implemented to automatically connect with a service provider at the shortest distance by using current location information of a mobile subscriber. It is about.

Emergency calls, as is well known, are calls requiring urgently needed calls by a member in an emergency situation to a hospital, police station, or 119 rescue. In order to provide such an emergency call service, the existing special number has been designated and operated by the subscriber. For example, the police station should memorize the special number, such as 112 and rescue team 119.

And even if a call is requested by the special number, the receptionist who answers the call detects the location of the subscriber and then re-contacts the police station or rescue station in the immediate area. There is a limit.

The present invention has been made to solve the above problems in the mobile communication system, and provides an emergency call service providing method implemented to automatically make a hotline call with the service provider of the shortest distance using the current location of the mobile subscriber. There is a purpose.

In order to achieve the above object, the method according to the present invention manages a database in which at least one service provider number for an emergency call located in a jurisdiction of each base station is allocated to all base stations existing in a corresponding jurisdiction. A mobile communication switch comprising: analyzing a transmitted setup message when a setup message is transmitted from a predetermined mobile subscriber station to which a radio resource is allocated; Analyzing, when an emergency call is requested, extracting a base station identifier (BS ID) for a predetermined mobile subscriber station; searching the database using the extracted base station identifier (BS ID) and corresponding to the base station identifier A first reading step of reading the highest priority service provider number; Making a call request using the read service provider number; A second reading step of reading a service provider number of a next rank corresponding to the base station identifier by re-searching the database using the base station identifier (BS ID) when the busy notification is received for the incoming request; After performing the second read step, returning to the incoming call request step; When the normal incoming call response is made to the incoming call request, the method comprises the step of establishing a hotline communication line with a predetermined mobile subscriber station and the service provider who has answered the incoming call.

1 is a schematic functional block diagram of a mobile communication system for performing an emergency call service providing method according to the present invention;

2 is a flowchart illustrating an emergency call service providing method according to the present invention.

<Description of the code | symbol about the principal part of drawing>

102: mobile subscriber station (MT) 104: base station (BS)

110: switch 112: mobile call processing unit

114: Visitor location register (VLR) 116: Space division switch (S-SW)

118: fixed subscriber call processor 130-1 to 130-N: first to Nth service providers

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic functional block diagram of a mobile communication system for performing an emergency call service providing method according to the present invention, a mobile subscriber terminal (also referred to as MT) 102 for requesting an emergency call, a mobile subscriber terminal. A base station (also referred to as a base station (BS)) 104 that governs an area in which 102 is located, a first to Nth service providers 130-1 to 130-N providing emergency call services, and a base station 104 Comprised of the first through N th service providers 130-1 through 130-N and the System Signaling (SS) No. The switch 110 is configured to perform signal processing in seven ways.

In particular, the exchange 110 is connected to the base station 104, the mobile call processing unit 112, the number translator (Number TRanslation, NTR) 113, the mobile subscriber processing information for each mobile base station and each base station Visitor Location Register (VLR) 114 that holds the service provider's database information for emergency calls. Between the fixed subscriber call processing unit 118 and the call processing unit 112 and 118 in the exchange 110, which can form a communication path with the first to Nth service providers 130-1 to 130-N in a seven-signal manner. It is composed of a space switch (Space Switch, abbreviated as S-SW) 116 to connect.

2 is a flowchart illustrating an emergency call service providing method according to the present invention.

Next, an operation of the method illustrated in FIG. 2 will be described with reference to FIG. 1.

First of all, by the operator, the VLR 114 in the exchange 110 sequentially stores dialing numbers for emergency call service providers located in the base station jurisdiction for each base station existing in the jurisdiction of the exchange 110 in order of priority. One database is provided as shown in Table 1. That is, a database is formed by using a base station identifier (BS ID (IDentifier)) as an address and sequentially recording dialing numbers of emergency call service providers existing in the jurisdiction of the base station in order of priority.

BS ID Primary Service Provider Second Service Provider ........ BS1001 XXX-XXXX XXX-YYYY ........ BS1002 YYY-YYYY YYY-ZZZZ ....... : : : :

Table 1 shows that the dialing number of the service provider designated as the highest priority of the base station having the 'BS1001' identifier is set to 'XXX-XXXX', and the dialing number of the service provider designated as the priority is set to 'XXX-YYYY'. The dialing number of the service provider designated as the highest priority of the base station having the 'BS1002' identifier is set to 'YYY-YYYY', and the dialing number of the service provider designated as the next priority is set to 'YYY-ZZZZ'. The priority is determined by the operator taking into account the size and facilities of the service provider.

As described above, in the state where a database storing the dialing number of the emergency call service provider for each base station according to priority is provided, the base station 104 and the mobile subscriber terminal corresponding to the call mode setting of the predetermined mobile subscriber terminal 102 are provided. Special keys for requesting an emergency call from the subscriber station 102 in a situation where radio resources (information such as a radio channel and a user ID) are allocated between the numerals 102 (for example, numeric keys such as '*' or '#'). When a setup message including a special key except for the received message is received through the base station 104 to the mobile call processing unit 112 in the switch 110, the mobile call processing unit 112 responds to the setup message received by the NTR 113 in step 202. Require digit information analysis

As a result of the analysis, when the NTR 113 is notified of the emergency call request, the mobile call processing unit 112 proceeds to step 206 through step 204 and includes the identifier BS of the originating base station 104 transmitted in the received setup message. ID). When the base station identifier is extracted, the process proceeds to step 208 to search the database (DB) for the emergency call service provider in the VLR 114 configured as shown in Table 1 using the extracted base station identifier (BS ID) as an address. do.

When the base station identifier is detected by the database search, the dialing number of the service provider assigned to the detected base station identifier is read. At this time, the dialing number of the service provider set as the highest priority is read. . The incoming request for the read dialing number is sent to the fixed subscriber call processor 118 through the space splitting switch 116.

The fixed subscriber call processing unit 118 receives an SS No. According to the seventh method, an IAM (Intial Address Message) requesting an incoming call is sent to a service provider corresponding to the corresponding dial number (for example, the first service provider 130-1).

If it is notified that the service provider 130-1 is busy on the transmitted IAM, the mobile call processor 112 proceeds from step 214 to step 216 and again uses the corresponding base station identification information to the VLR 114. It will re-search the database. In this case, the dialing number of the service provider of the next rank is read. The process returns to step 212 to perform the incoming request again.

As a result of the incoming request, if a busy notification is received from a service provider having a second priority (not shown), the process proceeds to step 216 again in order to perform the incoming request to the service provider having the next priority again. The database stored in 114 is re-searched. This operation is repeated until the called party responds normally.

If a normal response (Idle status notification) is made to the incoming request in step 212, the flow proceeds to step 218 through step 214 to send an ACM message to the calling party's mobile terminal 102, and If the ANM (Address Complete Message, hereinafter referred to as ANM) is received in step 220 as the phone of the service provider 130-1 is hooked off, the process proceeds to step 222. The ANM is sent to 102. As a result, a hotline is formed between the subscriber station 102 and the service provider.

On the other hand, as a result of analyzing the digit information of the setup message received in step 202, if the emergency call is not requested, the flow proceeds to step 224 to perform the corresponding function and return as before.

As described above, the present invention is a region where a predetermined mobile subscriber who requests an emergency call is located by managing a database of service providers capable of responding to an emergency call in units of cells controlled by corresponding base stations in the mobile communication exchange. By making a hotline call with a service provider of the shortest distance with the BS ID of the base station, there is an advantage that it can cope more quickly than the emergency call service using a special number.

Claims (1)

In the mobile communication exchange that manages a database in which at least one service provider number for an emergency call located in a jurisdiction of each base station is allocated to all base stations existing in a relevant jurisdiction, Analyzing a transmitted setup message when a setup message is sent from a predetermined mobile subscriber station to which a radio resource is allocated; Extracting a base station identifier (BS ID) for the mobile subscriber station when an emergency call is requested; A first reading step of searching the database using the extracted base station identifier (BS ID) to read a service provider number of the highest priority corresponding to the base station identifier; Making a call request using the read service provider number; A second reading step of reading a service provider number of a next rank corresponding to the base station identifier by re-searching the database using the base station identifier (BS ID) when the busy notification is received for the incoming request; After performing the second read step, returning to the incoming call request step; Establishing a hotline communication path between the predetermined mobile subscriber station and the service provider who has responded to the incoming call when a normal incoming call response is made to the incoming call request. .