KR100403732B1 - Apparatus and method of registering subscriber location at public network in private wireless system - Google Patents

Abstract

The present invention is to perform the public network location registration for a mobile station receiving a service in the private wireless system in a network interworking with a mobile communication system and a private wireless system. In the present invention, first, the mobile station transmits an origination message to the private radio system. Then, the private wireless system determines whether to register the location of the public network of the mobile station, and if it is determined that the registration of the location of the public network is necessary, extracts information necessary for location registration from the originating message and generates a location registration message. Then, the generated location registration message is transmitted to the mobile communication system to perform public network location registration.

Description

Apparatus and method for registration of public network location of private wireless system {APPARATUS AND METHOD OF REGISTERING SUBSCRIBER LOCATION AT PUBLIC NETWORK IN PRIVATE WIRELESS SYSTEM}

The present invention relates to a network in which a mobile communication system and a private wired / wireless system interwork, and more particularly, to an apparatus and a method for performing public network location registration for a mobile station in a private wireless system.

In general, a cellular mobile communication system divides an entire service area into a plurality of base station (BS) areas to form cells, which are small service areas, and centrally controls such base stations to a mobile switching center. Allows you to continue the call while moving from cell to cell. This is possible because the mobile station corresponding to the subscriber continuously performs location registration when the location is changed at the time of initial synchronization acquisition or by handoff. The location of this mobile station is registered in the home location register (HLR).

The home location register (HLR) is a database that stores and manages subscriber parameters and location information for all mobile terminals registered in its own network, and is an essential device for mobile services. The HLR registers important data such as access capability, basic service, and additional service of the mobile terminal and supports a routing function to the called subscriber. That is, the mobile exchange obtains information about the subscriber from the home location register and provides a service. Therefore, location registration in the mobile communication system is a very important part, and the mobile subscriber must register the location to receive the service of the system.

1 is a schematic block diagram of the mobile communication system.

Referring to FIG. 1, a home location register (HLR) 4 performs functions such as location registration, subscriber information management, additional service processing, authentication, and encryption support. Mobile Switching Center (MSC) 1 is a mobile communication switch that provides access to a public switched telephone network (PSTN). Base station controllers (BSCs) 2A and 2B perform functions such as traffic processing, soft handoff, and power control. A base station tranceiver system (BTS) 4A-4D performs access to a mobile station 5A-5D and controls and manages resources for accepting a radio channel. Base station managers (BSMs) 3A and 3B provide initialization, configuration and operator matching functions of base stations.

In the mobile communication system, when the mobile station 5A-5D makes an outgoing call (or call initiation) before the location registration, the location message is automatically registered in the public network (home location register) by the outgoing message. Here, the location registration may be made in various situations. For example, it may be performed by system initial acquisition or handoff. On the other hand, even in a network in which the mobile communication system and the private wireless system interoperate, when the mobile station transmits to the public network before location registration, location registration is automatically performed by an outgoing message.

However, in the prior art, in a network in which the mobile communication system and the private wireless system (or private switching system) interwork, when the mobile station transmits to the private network before performing the public network location registration, the location registration is not performed on the public network. Because of the state, there arises a problem that can not be provided after the general service from the public network. For example, when an incoming call to the mobile station occurs, the public network cannot provide a service to the mobile station because the public network does not currently know the location of the mobile station.

Accordingly, an object of the present invention is to provide an apparatus and a method for performing public network location registration in a private wireless system in a network in which a mobile communication system and a private wireless system interoperate.

Another object of the present invention is to provide an apparatus and method for automatically performing a location registration in a public network when a mobile station transmits to a private network before public network location registration in a network in which a mobile communication system and a private wireless system interoperate. .

According to a first aspect of the present invention for achieving the above objects, there is provided an apparatus for performing the public network location registration for a mobile station receiving a service in a private wireless system in a network in which a mobile communication system and a private wireless system interoperate. The mobile station transmits an outgoing message for initiating a call, and determines whether to register the public network location of the mobile station when the outgoing message is received, and extracts information necessary for location registration from the outgoing message when determining that the public network location registration is necessary. A message router for generating a location registration message, transmitting the generated location registration message to the mobile communication system, and registering the location of the mobile station with a home location register (HLR) when the location registration message is received. And a mobile exchanger of the system.

According to a second aspect of the present invention for achieving the above objects, there is provided a method for performing the public network location registration for a mobile station receiving a service in a private wireless system in a network in which a mobile communication system and a private wireless system interoperate. Transmitting, by the mobile station, the originating message to the private radio system; determining, by the private radio system, whether to register the public network location of the mobile station when the originating message is received; and when determining that the public network location registration is necessary. And extracting information necessary for location registration from the origination message to generate a location registration message, and transmitting the generated location registration message to the mobile communication system.

1 is a schematic configuration diagram of a conventional mobile communication system.

2 is a block diagram illustrating a network in which a mobile communication system and a private wireless system interoperate according to an exemplary embodiment of the present invention.

3 is a diagram illustrating a control procedure for performing public network location registration in a private wireless network according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

According to the present invention described below, in a network in which a mobile communication system (public network) and a private wireless system (private network) are interworked, a mobile station before a public network location registration generates a location registration message in a private network when transmitting a call to a private network and transmits it to the public network. It's about the room. As described above, location registration is most important for the mobile station to be provided with the services of the public network. Accordingly, the present invention is characterized in that if the mobile station uses the services of the private network before the public network location registration, the private network generates its own public network location registration message and transmits it to the public network.

2 is a block diagram of a network in which a mobile communication system (public network) and a private wireless system (private network) according to an exemplary embodiment of the present invention are linked.

As shown, the network is composed of a mobile station (MS) 111, a base station (BTS) 113, a private wireless system 100, and a mobile communication system 200, which are commonly used in common. Here, the private wireless system 100 includes a message router (pBTMR: pico BTS MESSAGE ROUTER) 115, a private network registration table 116, a private base station controller (pBSC) 117, and a private mobile switching center (pMSC) 119. It is composed of The private network registration table 116 performs a function similar to the home location register (HLR) of the public network. In addition, the private base station controller 117 and the private mobile switch 119 may be collectively referred to as a call management unit (CM: Call Management). The mobile communication system 200 includes a public base station controller (Public BSC) 211, a public mobile switching center (Public MSC) 213, and a home location register (HLR) 215.

First, the base station 113 performs a function of controlling and managing resources for accessing a wireless channel and accessing a radio link with the mobile station 111. The message router 115 performs a function of routing a message from the base station 113 to the mobile communication system 200 or the private wireless system 100. Here, the message router 115 obtains information on location registration when receiving an outgoing message from the mobile station 111, generates a public network location registration message, and sends the generated location registration message to the mobile communication system. Send to (200). The outgoing message performs a function of routing to the private wireless system 100. The private network registration table 116 stores various subscriber parameters for subscriber information management, additional service processing, authentication and encryption support, and the like.

The Private Wireless Network (100) is composed of a private base international controller (pBSC) 117 and a private mobile switching center (pMSC) 119, through a mobile station 111 that is a subscriber and the base station 113. It is wirelessly connected, and is connected by wire with a public switched telecommunication network (PSTN) (not shown) and a mobile communication system (PLMN) (200). In addition, the private base station controller 117 and the private mobile switch 119 of the private wireless system 100 perform the same functions as the base station controller and mobile switch of the general mobile communication system 200. The difference is that it supports services for. For example, the private base station controller 117 performs radio link, wired link control, and hand off functions, and the private mobile switch 119 performs mobility management and call (e.g. call) handles processing.

The mobile communication system 200 includes the public base station controller 211, the public mobile switch 213, and the home location register (HLR) 215, and wirelessly communicates through the mobile station 111 and the base station 113, which are subscribers. And a wired connection with a public switched telephone network (PSTN) (not shown) and the private wireless system 100. Since the public base station controller 211, the public mobile switch 213, and the home location register 215 in the mobile communication system 200 have the same functions as those of the private wireless system described above, detailed description thereof will be omitted. According to the present invention, the public base station controller 211 passes the public network location registration message from the message router 115 to the public mobile switch 213, and the public mobile switch 213 transmits the public base station controller ( Based on the location registration message from 211, location registration for the mobile station 111 is performed.

The operation based on the configuration of FIG. 2 is as follows.

First, the mobile station 111 generates a private network origination message for call origination and transmits it to the base station 113. Then, the base station 113 receives the outgoing message and delivers it to the message router 115. Here, the mobile station 111 is not currently registered in the public network. The private network outgoing message means a call-in message provided to the private network,

Then, the message router 115 analyzes the origination message, accesses the private network registration table 116 with the analyzed information, and determines whether to register the public network location of the mobile station 111. That is, the message router 115 determines whether the public network location is registered by checking various parameters (power off of the terminal, whether a new location is registered) of the terminal stored in the private network registration information table 116. For example, when the power of the mobile station is turned off and on, or when a new location registration is required at the current location, the message router 115 needs to register the public network with the mobile station 111. I judge it.

Therefore, when the public network location registration is required, the message router 116 obtains information necessary for location registration from the private network origination message, and generates a public network location registration message with the obtained information. Then, the generated public network location registration message is transmitted to the public network (public base station controller) 200. Then, the public base station controller 211 receives the location registration message from the message router 115 and delivers it to the public mobile switching center (213). The public mobile switch 213 analyzes the location registration message from the public base station controller 211 and performs location registration for the mobile station 111 through the home location register 215. That is, location update is performed for the mobile station.

Meanwhile, the message router 115 transfers the outgoing message from the base station 113 to the private base station controller 117. Then, the private base station controller 117 analyzes the outgoing message from the message router 115 and provides it to the corresponding private mobile exchange 119, and the private mobile exchange 119 processes authentication for the mobile station 111. If the authentication is successful, the mobile station 111 obtains information on the mobile station 111 and provides a service. That is, the switching operation is performed so that the origination of the mobile station can be delivered to the corresponding destination.

That is, as described above, the present invention generates a location registration message by using the outgoing message in the private network, even if the private network before the location registration in the public network, and transmits the generated outgoing message to the public network location Registration can be done automatically.

3 illustrates a procedure for generating a location registration message and transmitting it to a public network in a private network according to an embodiment of the present invention. 3 may be performed in the message router 116, which is the core configuration of the present invention.

2 and 3, first, upon receiving a message from the base station 113, the message router 115 checks whether the received message is an originating message initiated from the mobile station 111 in step 311. If the received message is the originating message, the message router 115 proceeds to step 313, otherwise proceeds to step 315 to perform a corresponding function. If the outgoing message is received, the message router 115 analyzes the outgoing message in step 313 to obtain subscriber information (eg, subscriber identification information (IMSI)). In step 317, the message router 115 accesses the private network registration table 116 with the obtained subscriber information to confirm various parameters of the mobile station 111. In operation 319, the message router 115 determines whether to register the public network location with respect to the mobile station 111 based on the contents registered in the private network registration table 116.

If it is determined that public network location registration is not necessary, the message router 115 proceeds to step 325, and if it is determined that public network location registration is necessary, the message router 115 proceeds to step 321. In step 321, the message router 115 obtains information necessary for registration of a public network location from the originating message and generates a public network location registration message. In operation 323, the message router 115 transmits the generated public network location registration message to the mobile communication system 200 corresponding to the public network. In detail, the location registration message is transmitted to the public mobile switch 213 through the base station controller 211 of the public network 200. Then, the mobile switching center 213 performs the public network location registration for the mobile station 111 with the location registration message. That is, the position is newly registered in the home position register 215 or the position of the stored mobile station is updated.

On the other hand, after transmitting the location registration message, the message router 115 proceeds to step 325 and transmits the outgoing message from the mobile station 111 to the base station controller 117 of the private network 100. Then, the base station controller 117 forwards the origination message to the mobile switching center (119). The mobile exchange 119 performs switching to deliver the originating message to a destination.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. For example, although a private network is described as a wireless system, the present invention can also be implemented in a wired system. In addition, although the message router 115 has been described as being provided in the private network, it may be implemented as a separate device independent of the private network and the public network. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, in the present invention, in the network in which the mobile communication public network and the wireless private network are interworked, the public network location registration is automatically performed by the transmission even when the mobile station first transmits to the private network without the public network location registration. After that, the mobile station has an advantage of smoothly receiving the services of the public network.

Claims (7)

In a network in which a mobile communication system and a private wireless system interoperate, an apparatus for performing the public network location registration for a mobile station receiving a service in the private wireless system, A mobile station transmitting an outgoing message for invoking a call, Determining whether to register the location of the public network of the mobile station when receiving the outgoing message, and extracting the information necessary for location registration from the originating message to generate a location registration message when determining that the location of the public network is necessary, and generating the location registration message. A message router for transmitting to the mobile communication system; And a mobile switch in said mobile communication system for registering a location for said mobile station in a home location register (HLR) upon receipt of said location registration message. The method of claim 1, The message router, characterized in that for routing the originating message to the private network after transmitting the location registration message. The method of claim 1, And a base station (BTS) provided between the mobile station and the message router, for wireless matching with the mobile station. The method of claim 1, And a public base station controller (Public BSC) provided between the message router and the public network switch. The method of claim 1, And a private network property table storing various parameters and locations for the mobile station. In a network in which a mobile communication system and a private wireless system interoperate, a method for performing the public network location registration for a mobile station receiving a service in the private wireless system, Transmitting, by the mobile station, an origination message to the private wireless system; Determining, by the private wireless system, whether to register a public network location of the mobile station when the outgoing message is received; Generating a location registration message by extracting information necessary for location registration from the originating message when determining that the public network location registration is necessary; And transmitting the generated location registration message to the mobile communication system. The method of claim 6, And after the location registration message is transmitted, routing the outgoing message to the private network.