KR100666994B1 - System and method for reusing the extension number on multi zone private network - Google Patents

Abstract

A system and a method for reusing an extension number in a multi zone private network are provided to perform call processing at a pBSC(private Base Station Controller) and a pHLR/pVLR(private Home Location Register/private Visitor Location Register) by converting a service number into a system number, thereby reusing the extension number assigned to an MS of the multi zone private network and accordingly flexibly assigning the extension numbers to the MS at each zone of the multi zone private network. A private network wireless call processing system receives a call from an MS(Mobile Station) or a PBX(Private Branch eXchange)(S300), and converting a service number of a calling terminal or a receiving terminal of the call, included in the received call, into a system number by using identification information of a zone in which the station is included(S302), then processing the call by using the system number(S304).

Description

Recycling System for Extension Number in Multi-zone Private Network and its Method {SYSTEM AND METHOD FOR REUSING THE EXTENSION NUMBER ON MULTI ZONE PRIVATE NETWORK}

1 is a block diagram of a multi-zone private network in which a plurality of private network switching stations (PBXs) may be connected to one private network control station.

FIG. 2 is a signal flow diagram according to an application of the present invention between components of the network shown in FIG. 1 according to an embodiment of the present invention. FIG.

3 is a flowchart illustrating an operation of a private network control station according to an embodiment of the present invention.

4 is a flow chart illustrating the operation of each component constituting the network and the signal exchange between the components when reusing an extension number in a multi-zone private network according to another embodiment of the present invention.

The present invention relates to an extension number reuse system in a multi-zone private network and a method thereof.

The multi-zone private network refers to a network in which a plurality of Private Branch eXchanges (PBXs) are connected to one Private Base Sation Controller (pBSC). When providing a communication service to a plurality of corporations, such a multi-zone private network can provide a communication service by matching one corporation to one zone. An example of a system that provides multi-zone functionality is the InfoMobile system.

However, in the multi-zone private network, the same extension number may not be assigned to a terminal belonging to a different zone in the wireless terminal. That is, each zone of the multi-zone private network should be assigned a different extension number band, it is impossible to reuse the extension number. This is because a private home location register (PVLR / pVLR) in a wireless private network where information of the wireless terminal is registered is shared by zones of the corresponding multi-zone private network. In contrast, in the wired terminal, since the information of the wired terminal is registered in the PBX of each zone, the extension number can be reused in each zone unit.

In the conventional multi-zone private network, since the extension number of the wireless terminal cannot be reused, a unique extension number has to be assigned to each terminal so that the extension numbers of the wireless terminal do not overlap, regardless of the request in each zone. For example, if wireless terminals included in different zones are assigned an extension number of "200", a collision occurs between the terminals.

Since the extension number for the wireless terminal cannot be reused, the extension number allocation in each zone of the multi-zone private network should be performed in consideration of the extension number allocation in another zone included in the multi-zone private network. This makes flexible extension numbering impossible and the numbering system required by the zone may not be available.

Accordingly, it is an object of the present invention to provide an extension number reuse system and method in a multi-zone private network that enables extension number reuse for a wireless terminal in a multi-zone private network.

Another object of the present invention is to provide a system and method for re-using an extension number in a multi-zone private network which enables flexible extension number allocation in a multi-zone private network.

According to an aspect of the present invention, there is provided a method for reusing an extension number in a multi-zone private network, including: receiving, by a private network radio call processing system, a call from a wireless terminal or a private branch eXchange (PBX); Converting the service number of the calling terminal or the called terminal included in the received call into a system number using identification information of the zone in which the terminal is included; and processing the call using the system number. It may include the process of doing.

The process of performing the call processing may include retrieving information of the originating terminal or the terminating terminal of the call from a private home location register / private visitor location register (pHLR / pVLR).

The process of retrieving the information is performed using the system number of the terminal.

A method for reusing an extension number in a multi-zone private network according to another aspect of the present invention for achieving the above objects is a process of converting a service number of a calling terminal of a corresponding call into a system number by a private network control station receiving a call from a wireless terminal. And the private network controller processing the call using the system number, and transmitting the processed call to a private network switching center, and the private network switching center processes the outgoing call for the call, and receives a call corresponding to the call. Generating a call; transmitting, by the private network exchange station, the incoming call to the private network control station; receiving, by the private network control station, and converting the service number of the called terminal of the call into a system number; And the private network control station handles the call using the system number and sends the processed call to the corresponding call. It may include transmitting to the called terminal.

The process of converting the service number into a system number by the private network control station may include obtaining identification information of the zone to which the call originating terminal or the called terminal belongs to the call, and obtaining the obtained identification information and the service number of the terminal. And generating a system number.

The performing of the call processing by the private network control station may include retrieving subscriber information of the terminal for connecting the call from the private network subscriber information station using the system number of the called terminal or the calling terminal of the call. Can be.

The private network control station for extension number reuse in a multi-zone private network according to another object of the present invention for achieving the above objects, if a call is received from a wireless terminal or private network switching center, the service number included in the received call You can convert to a system number and use the system number to perform call processing for that call.

The private network control station may generate a system number using identification information of the zone to which the called or calling terminal of the call belongs and the service number assigned to the terminal.

The private network control station may obtain subscriber information of the terminal corresponding to the system number from a private network subscriber information station.

An extension number reuse system in a multi-zone private network according to another aspect of the present invention for achieving the above objects is transmitted, including the service number assigned to it in the call transmission and identification information of the zone in which it is included. A mobile station, an exchange station that performs outgoing call processing for the call and incoming call processing for the call using a service number assigned to the calling terminal or the called terminal of the call, and a call price from the wireless terminal or the private network switching station. When received, converts the service number of the calling terminal or the called terminal of the received call into a system number, performs a call processing on the received call using the system number, and transfers the processed call to the private network switching center or the corresponding terminal. It may include a private network control station for transmitting to.

The system may further comprise a private network subscriber information station storing subscriber information for a wireless terminal of the multi-zone private network.

As described above, the extension number reuse system and method in the multi-zone private network proposed in the present invention allocates two numbers corresponding to each other of the service number and the system number to each wireless terminal of the multi-zone private network. Call processing. The service number corresponds to an extension number assigned to each wireless terminal and is a number that can be reused for each zone of the corresponding multi-zone private network. The system number is a number used for system internal processing of the multi-zone private network, and is a number unique to the entire multi-zone network. The system number can be used in a private network radio call processing system. In particular, the system number can be used for call processing in private network control stations and private network subscriber information stations. In the present invention, the system number is preferably set using a service number set in each terminal and identification information of the zone in which the terminal is included.

In the present invention, each wireless terminal may perform call transmission / reception using a service number assigned thereto. Call processing inside the system is performed not by the service number but by the system number converted from the service number. The call in which the system internal processing is completed is transmitted again to the corresponding destination (for example, a radio terminal or a private network switching center) including the service number.

Hereinafter, a call processing and a conversion between a service number and a system number according to the present invention will be described in detail with reference to the accompanying drawings. First, a network to which the present invention can be applied will be described.

1 is a configuration diagram of a multi-zone private network in which a plurality of private network switching stations (PBXs) may be connected to one private network control station.

As shown in FIG. 1, a multi-zone private network to which the present invention can be applied includes a mobile switching center (MSC) 160, a base station controller (BSC) 150, and a public network subscriber information station. Home Location Register (HLR) (not shown), Private Network Switching Station (PBX) 140-1, 140-2, Private Network Control Station (pBSC) 130, Base Station Transmission System (BTS) 120 And a private network subscriber information station (pHLR / pVLR) (not shown) and a mobile station (MS) 110-1, 110-2 (hereinafter referred to as "wireless terminal"). In addition, the private network wired terminals 112-1 and 112-2 that receive wired communication services by accessing the private network exchange stations 140-1 and 140-2 through wires may be included in the multi-zone private network.

Among these components, the wireless terminals 110-1 and 110-2 and the base station 120 may be commonly used for public network service and private network service. The radio terminals 110-1 and 110-2 (hereinafter, reference numerals are omitted and will be expressed in the singular form unless otherwise specified) are devices used to provide a wireless communication service to a user. In general, a wireless terminal may be used in the same sense as a user. The base station 120 allocates a radio resource for a radio communication service to the radio terminal.

Private network switching stations 140-1, 140-2, private network control station 130, and private network subscriber information station are used for wireless communication services over a wireless private network.

The private network switching centers 140-1 and 140-2 store subscriber information for performing call processing for the wired terminal.

Private network control station 130, in particular, private network control station 130 in the present invention performs the conversion between the service number and the system number. The private network control station 130 converts the service number into the system number by generating a system number using the service number assigned to each radio terminal and the identification information of the zone in which the radio terminal is included.

The private network subscriber information station stores subscriber information of a pre-registered radio terminal of the corresponding multi-zone private network. The private network subscriber information station may also store identifier information of the zone in which the wireless terminal is included, for converting the wireless terminal into a service number.

The public network switching center 160, the public network control station 150, and the public network subscriber information station are used for wireless communication services over the wireless public network.

100-1 and 100-2 of FIG. 1 correspond to each zone of the multi-zone network. As shown in FIG. 1, zones of a multi-zone network are connected to respective PBXs 140-1 and 140-2. In addition, each zone of the multi-zone network is connected to one pBSC 130 through the BTS 120. These PBXs 140-1 and 140-2 and pBSC 130 are connected to each other. That is, one pBSC 130 and a plurality of PBXs 140-1 and 140-2 are interworked for the multi-zone network service.

In addition, the multi-zone private network may be connected to a public switched telephone network (PSTN).

Meanwhile, in a network in which a wireless public network and a private public network are interworked, the BSC 150 is connected to the BTS 120 through the pBSC 130 and has a public network / private network service routing function in the pBSC 130. There is a / W module (pBTMR).

In particular, the present invention is performed between the radio terminal, the base station 120, the private network control station 130 and the private network switching stations 140-1 and 140-2 constituting the wireless private network system. Hereinafter, the present invention will be described through the signal flow between the aforementioned components.

FIG. 2 is a signal flow diagram according to an application of the present invention between components of the network shown in FIG. 1 according to an embodiment of the present invention.

2 illustrates a signal flow according to call transmission between radio terminals belonging to zone 100-1. Since call processing between radio terminals belonging to zone 100-1, the private network switching center 140-1 connected to the zone is used for processing the call. The call transmitted by the radio terminal is transmitted to the private network control station 130 via the base station 120 (1). The call processed by the private network control station 130 is transmitted to the private network switching stations 140-1 and 140-2 (2). At this time, the private network control station 130 converts the service number included in the received call into a system number to perform the call processing. The call processed by the private network control station 130 is transmitted to the private network switching station 140-1, including the information obtained by the private network control station 130. At this time, the call includes a service number, not a system number.

When the call is received from the private network control station 130, the private network switching center 140-1 performs call processing for the call. In this case, call processing performed by the private network switching center 140-1 may be classified into an outgoing call processing and an incoming call processing. Outgoing call processing includes obtaining caller information of a corresponding call, and incoming call processing includes a step of generating an incoming call for notifying the called party of the call. At this time, the private network switching center 140-1 may perform the call processing using the subscriber information stored therein.

The incoming call generated by the private network switching station 140-1 is transmitted to the private network control station 130 again (3). The private network control station 140-1 converts the service number of the received call into a system number and then performs a call processing for transmitting the call to the called terminal of the call through a radio section.

The call processed by the private network control station 130 is transmitted to the destination terminal of the call via the base station 120 (4). The call at this time includes a service number assigned to the called terminal of the corresponding call.

As described above, the conversion between the service number and the system number for the present invention may be performed by the private network control station 130. Hereinafter, the operation of the private network control station 130 in the present invention will be described.

3 is a flowchart illustrating an operation of a private network control station according to an embodiment of the present invention.

In step 300, the private network controller receives a call to be transmitted from the first radio terminal, which is the originating terminal of the call, to the second radio terminal, which is the called terminal of the call. In step 302, the private network control station converts the service number included in the received call into a system number. In step 304, the private network controller performs call processing using the system number. In step 306, the private network controller converts the system number into a service number. In step 308, the private network control station includes the service number in the processed call and transmits it to the private network switching station 140-1.

In step 310, the private network control station receives a call from the private network switching station 140-1. This call is a call processed by the private network switching station 140-1. In step 312, the private network controller converts the service number included in the received call into a system number. In step 314, the private network control station performs call processing using the system number. In step 316, the private network controller converts the system number into a service number. In step 318, the private network control station transmits the call to the second terminal using the service number.

That is, the system number proposed in the present invention is used for call processing in the private network control station 130. The reason is that the search for the private network subscriber information station is performed by the private network control station 130.

As described above, applying the present invention enables extension number reuse in a multi-zone private network. This is because the service numbers assigned to the radio terminals included in each zone of the multi-zone private network may coincide with each other, but the private network subscriber information station stores and processes the extension numbers assigned to the respective zones according to certain rules. Taking the following Table 1 as an example, it will be described the form of the service number and system number assignable through the present invention. Table 1 shows an example of a service number and a system number that can be allocated in a multi-zone private network in a four-zone environment.

zone Service number System number One 200 1200 2 200 2200 3 200 3200 4 200 4200

As shown in Table 1, zone 1 to zone 4 may all have a radio terminal assigned an extension number of "200", that is, a service number. However, although the service numbers assigned to these radio terminals are the same, the system numbers assigned to these radio terminals are different from each other as "1200", "2200", "3200" and "4200", respectively. Table 1 shows an example in which the system number is set by prefixing the service number of the wireless terminal with 1, 2, 3, and 4, which are the numbers of zones in which each wireless terminal is included.

Hereinafter, the present invention will be described with reference to specific examples.

FIG. 4 is a flow chart illustrating the operation of each component constituting the network and the signal exchange between the components when reusing an extension number in a multi-zone private network according to another embodiment of the present invention. .

Hereinafter, a radio terminal (hereinafter referred to as "the first radio terminal") included in the 100-1 zone and assigned the service number '200' from the 100-1 zone is included in the 100-1 zone and is served from the 100-1 zone. An embodiment for requesting call connection with a wireless terminal (hereinafter referred to as "second wireless terminal") assigned the number '201' will be described with reference to FIG.

The first radio terminal transmits and receives a signaling message to the system for requesting a call connection with the second radio terminal. In this case, the call originated by the first radio terminal includes identification information of the service number 200 of the first radio terminal, the service number 201 of the second radio terminal, and the zone 100-1 to which the first radio terminal belongs. Include at least. Here, the identification information of the zone 100-1 to which the first radio terminal belongs is regarded as "1". The call originated by the first radio terminal is transmitted to the private network control station 130 through the base station 120 (1).

When receiving the call originated by the first radio terminal, the private network control station 130 converts the service number included in the call into a system number (S400). In the conversion process, the private network controller 130 generates the system number of the first wireless terminal by using the service number of the first wireless terminal ("200") and the identification information ("1") of the zone including the first wireless terminal. The private network control station 130 can obtain the zone identification information by searching the zone field of the subscriber information registered in the private network subscriber information station, and the private network control station 130 retrieves the zone identification information. In order to do this, the International Mobile Subscriber Identifier (IMSI) information or the Equipment Serial Number (ESN) information may be used, since the service number assigned to the first radio terminal is 200 and the identification information of the corresponding zone is 1, The system number "1200" may be assigned. Then, the private network control station 130 performs call processing using the system number "1200" (S402) Of course, the subscriber information is transmitted to the private network subscriber information station before the service proceeds. distant I must be registered.

When the call processing is completed, the private network control station 130 converts the system number of the call into a service number (S404). On the other hand, if the service number is stored without deleting after conversion to the system number, the stored service number may be used without a separate number conversion process.

When the call processing is completed, the private network control station 130 transmits the call to the private network switching station 140-1 (2). At this time, the private network control station 130 should deliver the service number '200', not the system number '1200' of the caller terminal of the call, to the private network switching station 140-1. Therefore, at this time, the information transmitted from the private network control station 130 to the private network switching station 140-1 includes the number of the originating terminal of the call (hereinafter referred to as "calling number") "200" and the number of the called terminal of the call (hereinafter " Called "caller ID".

The private network switching center 140-1 processes the outgoing signal and generates an incoming call in this process (S406). After the call processing, the private network switching center 1400-1 transmits the calling number "200" and the called number "201" to the private network control station 130 to proceed with the incoming call of the incoming call.

The private network control station 130 first retrieves the information of the called subscriber for the processing of the incoming call received from the private network switching station 140-1. The private network control station 130 must convert the service number into a system number for incoming call processing (S408). The private network control station 130 needs to know the identification information of the zone to which the private network switching station 140-1 to which the corresponding incoming call is generated, for number conversion, checks the network configuration information and the passage through which the incoming call is received. Can be obtained. In this embodiment, since the identification information of the zone that generated the incoming call is "1", the service number '201' is converted into the system number '1201'. The private network control station 130 retrieves the called number registered in the private network subscriber information station using the system number, and then processes the incoming call using the search result (S410). When the call processing ends, the private network control station 130 changes the system number of the call to the service number (S412). S412 may be omitted for the same reason as S404. The private network control station 130 transmits the incoming call to the second radio terminal through the base station 120.

As described above, the present invention converts a service number into a system number to perform call processing in a private network control station and a private network subscriber information station, thereby enabling extension number reuse in a multi-zone private network.

As described above, the present invention enables reuse of extension numbers assigned to wireless terminals of a multi-zone private network, so that extension number allocation to wireless terminals in each zone of the multi-zone private network can be made flexible. Make sure Through this, the numbering system required in each zone of the multi-zone private network can be flexibly applied.

Claims (11)

In the method of reusing an extension number in a multi-zone private network, Receiving, by the private network radio call processing system, a call from a wireless terminal or a Private Branch eXchange (PBX); Converting the service number of the calling terminal or the called terminal of the call, included in the received call, into a system number using identification information of the zone in which the terminal is included; And And reserving the call using the system number. The method of claim 1, The process of performing the call processing, 12. A method for reusing an extension number in a multi-zone private network, comprising retrieving information of a calling terminal or a called terminal of a corresponding call from a private home location register / private visitor location register (pphlr / pVLR). The method of claim 2, The searching of the information may be performed by using the system number of the terminal. In the method of reusing an extension number in a multi-zone private network, Converting, by the private network control station receiving the call from the wireless terminal, the service number of the calling terminal of the call into a system number; The private network controller processing the call using the system number, and transmitting the processed call to a private network switching station; Processing, by the private network switching center, an outgoing call for the call and generating an incoming call corresponding to the call; The private network switching station transmitting the incoming call to the private network control station; Receiving, by the private network controller, the call and converting the service number of the called terminal of the call into a system number; And And the private network controller processes the call using the system number and transmits the processed call to the called terminal of the call. The method of claim 4, wherein The process of converting the service number into a system number by the private network control station, Obtaining identification information of the zone to which the calling terminal or the called terminal belongs to the call; and And generating a system number by using the obtained identification information and the service number of the terminal. The method of claim 4, wherein The process of performing the call processing by the private network control station includes retrieving subscriber information of the terminal for connecting the call from the private network subscriber information station using the system number of the called terminal or originating terminal of the call. Extension number reuse method in multi-zone private network. A private network control station for extension number reuse in a multi-zone private network, When a call is received from a wireless terminal or private network switching center, the service number included in the received call is converted into a system number, and the extension number is reused in a multi-zone private network that performs call processing for the call using the system number. Private network control station. The method of claim 7, wherein And the private network controller generates a system number using identification information of a zone to which the called or calling terminal of the call belongs and a service number assigned to the terminal. The method of claim 7, wherein And a private network control station for reusing an extension number in a multi-zone private network which obtains subscriber information of the terminal corresponding to the system number from a private network subscriber information station. In the extension number reuse system in a multi-zone private network, A radio terminal for transmitting a call including a service number assigned to the call and identification information of the zone in which the call is included; An exchange station that performs outgoing call processing for the call and incoming call processing for the call using a service number assigned to the calling terminal or the called terminal of the call; And When a call is received from the radio terminal or the private network switching center, the service number of the originating terminal or the terminating terminal of the received call is converted into a system number, the system number is used to perform a call processing for the received call, and processing. And a private network control station for transmitting a call to the private network switching center or the corresponding terminal. The method of claim 10, A private network subscriber information station storing subscriber information for a wireless terminal of the multi-zone private network, And the private network control station obtains subscriber information corresponding to the system number from the private network subscriber information station.

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