KR0124032B1 - Pbx system & method for pcs - Google Patents

Abstract

The present invention relates to a radio private exchange system for personal communications service and an operating method. In this system, a radio private exchange network is formed as a local area network and local area networks are connected to each other to form a wide area network. This system includes a network manager controlling the communications of local area networks; and a radio private exchange network with plural radio private exchanges and public network. This operating method includes the steps of: when a subscriber sends a signal for calling a portable unit of a first radio private exchange network that comes into a managing area of a second radio private exchange network, confirming the position of the portable unit; if confirming the position of the portable unit, connecting the subscriber to the portable unit's transmission path through the first and second radio private exchange networks and the network manager; and establishing a telephone conversation between the subscriber and the portable unit.

Description

Wireless Private Exchange System for Personal Communication Service and Its Operation Method

1 is a schematic block diagram of a typical wireless private exchange.

2 is a schematic block diagram of a conventional wireless private switching network.

3 is a schematic block diagram of a mesh type wireless private switched network in accordance with one preferred embodiment of the present invention.

4 is a schematic block diagram of a molded wireless private switched network in accordance with a preferred embodiment of the present invention.

5 is a flowchart according to a user of a wireless private switching network according to a preferred embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

11: system control device 12, 13, 14: fixed device

15,16,17: portable device 21: public network

22,23,24,25: Wireless private exchange 31: Public network

32,33,34: Wireless private exchange 35: Gateway private exchange

41: network manager 42, 43, 44, 45: wireless private switching network.

The present invention relates to a wireless private exchange system for a personal communication service and a method of operating the same, and more particularly, to a personal communication service configured as a local network using a mesh-type wireless private switching network and interconnecting the local networks in a shaping to form a wide area network. And a method of operating the same.

A schematic block diagram of a typical wireless private exchange is shown in FIG.

Referring to FIG. 1, a typical wireless private exchange is a mobile device (15, 16, 17) capable of communicating with the mobile stationary device (12, 16, 17) in communication with the mobile device (15, 16, 17) in a fixed position 12 And 13 and 14, and a system controller 11 which communicates with the fixing devices 15, 16 and 17 and controls the operation of the fixing devices 15, 16 and 17.

A general wireless private exchange configured as described above is composed of a network for communication in each switching period. A schematic block diagram of a conventional wireless private switching network for the communication is shown in FIG.

Referring to FIG. 2, the conventional wireless private switching network includes a public network 21 for providing information and control signals for switching period communication, and a plurality of wireless private exchanges belonging to the public network 21 for switching period communication. (22) (23) (24) and (25), and the plurality of wireless private exchanges (22) (23) (24) (25) belonging to the public network (21) through the public network (21). Communication is made.

The conventional wireless switching network as described above is configured in units of macro cells, and provides a wireless communication service using a cellular dedicated exchange, so that wireless communication service cannot be provided in a tunnel, a steep mountain range, or a dense urban area. There were many cases.

Therefore, in the present invention, in order to provide a better wireless communication service in a region where the wireless communication service is difficult as described above, a wireless private switching network composed of a mesh type is used as a local network, and the regional networks are interconnected by shaping. An object of the present invention is to provide a wireless private exchange system for the configured personal communication service and an operation method thereof.

In order to achieve the above object, a wireless private exchange system provided by the present invention is a network for controlling communication between local networks by setting up and transmitting a transmission path to a node to send data and voice information received through each node. And a wireless private switching network having a public network and a plurality of wireless private switching networks including a gateway station and a wireless private switching center which communicates directly with the manager.

The operation of the wireless private exchange system for the personal communication service provided by the present invention may be performed when an external subscriber transmits a call signal for calling a mobile device belonging to the first wireless private switched network that has entered the management area of the second wireless private switched network. A step of requesting a first portable device location manager to confirm the location of the portable device, and when the first portable device location manager confirms the location of the portable device and informs the first wireless private exchange, A first wireless private exchange informing the first gateway wireless private exchange and the network manager of the location of the portable device, and the network manager communicating the first wireless private exchange to the second wireless private exchange through the second gateway wireless private exchange. Sending a request signal by transmission to a private exchange, and wherein the second wireless private exchange manages a location of a second portable device; Confirming that the portable device belongs to the mobile station; and if the portable device is confirmed by the second mobile device location manager to belong to a second wireless private exchange, the transmission received at the second wireless private exchange. Transmitting a request signal to the portable device; and when the portable device receiving the transmission request signal responds, connect the second wireless private exchange with the first wireless private exchange period transmission path, And making a call between the subscriber and the portable device.

Hereinafter, the present invention will be described in detail with reference to the drawings.

3 is a schematic block diagram of a mesh type wireless private switching network according to a preferred embodiment of the present invention, FIG. 4 is a schematic block diagram of a molded wireless private switching network according to a preferred embodiment of the present invention, and FIG. A flowchart of the operation of the wireless private switching network according to the preferred embodiment of the present invention.

First, referring to FIG. 4, the shaping wireless private switching network according to the preferred embodiment of the present invention establishes a transmission path to a node to send data and voice information received through each node and transmits the communication path between the local networks. It consists of a network manager 41 for controlling the network, and a plurality of wireless private switching networks 42, 43, 44, 45 to communicate by the network manager 41, referring to FIG. The wireless private switching network (42) (43) (44) (45) includes a plurality of wireless private exchange (32) (33), including a gateway bureau wireless private exchange (35) that communicates directly with the network manager (41). 34 and the public network 31.

In this case, the gateway bureau wireless private switch 35 provides services of a call forwarding function, an authentication function and a roaming function of the mobile device when the mobile device belonging to the wireless private switching network is in another wireless private switching network. Representatives of the wireless private exchanges of the switching network are connected to the network manager in a forming structure.

In addition, the wireless private switching network 42, 43, 44, 45 has a mesh type connection between the components.

In such a wireless private exchange system, each wireless private exchange should have overlapping portions of management areas in order to enable zone switching of wireless private exchange periods, and wireless subscribers in the basic mesh type wireless private switching network have one wireless private network. Calls can be made and sent even when the switchboard (gateway wireless private exchange) is located in the home.

In the case of an incoming call, the call received by the home wireless private exchange is received by the mobile device location manager (VLR: Visitor Location Register) to check the system control device number of the wireless private exchange at the current location of the mobile device. The call is transmitted to the subscriber of the mobile device by the switching protocol procedure. In the case of origination, the call is made through the wireless private exchange which manages the current location area by the roaming function.

Referring to FIG. 5, the operation of the wireless private exchange system for the personal communication service may be performed when an external subscriber transmits a call signal for calling a mobile device belonging to the first wireless private switched network that has entered the management area of the second wireless private switched network. (1) the wireless private exchange requesting the location of the portable device to the first portable device location manager (S11), and the first portable device manager having received the location request signal confirms the location of the portable device; Transmitting location information to a first wireless private exchange (S12), the first wireless private exchange informing a first gateway station wireless private exchange of the location of the portable device (S13), and the first gateway station Step (S14) in which the wireless private exchange informs the network manager of the location of the portable device, and the network manager has a second non-transmission through the second gateway station wireless private exchange. (S15) sending a request signal to the private exchange through a transmission with the first wireless private exchange (S15), and confirming whether the portable device belongs to a second mobile device location manager by the second wireless private exchange (S16); When the portable device is confirmed by the second mobile device location manager to belong to a second wireless private exchange, transmitting the transmission path request signal received to the second wireless private exchange to the mobile device ( S17), transmitting a signal indicating that the location of the portable device is confirmed to the public network (S18), and when the portable device receiving the transmission path request signal responds (S19), the second wireless private exchange And connecting the first wireless private exchange period transmission path (S20) and making a call between the external subscriber and the portable device (S21).

When the call is terminated, the network manager closes the transmission path established between the first and second gateway stations, and informing the network manager of the termination status is first performed by the gateway station on the side that attempted the termination. .

The wireless private exchange system for personal communication service of the present invention constructed and operated as described above configures a wireless private exchange network suitable for regional characteristics by using a wireless private exchange to provide a wireless communication service to a subscriber of a mobile device belonging thereto. The wireless private switching network, which is configured according to the characteristics, can be interconnected in a network configuration centered on the network manager to construct a wider wide area network, thereby providing subscribers of the mobile device in a wider area. In addition, it may form the basis of a Personal Communication Service (PCS) in the future.

Claims (5)

A network manager for controlling communication between local networks by setting up a transmission path to a node to which data and voice information received through each node is to be transmitted, and a wireless private exchange having a direct communication with the network manager; It consists of a plurality of wireless private exchange and a plurality of wireless private switching network each including a public network, the plurality of wireless private switching network for the network manager is connected to a forming structure to form a wide area network personal communication Wireless private exchange system for service. The wireless private exchange of claim 1, wherein the mobile station wireless private exchange provides a service of a call forwarding function, an authentication function, and a roaming function of the mobile device when the mobile device belonging to the wireless private switching network is in another wireless private switching network. In fact, a wireless private exchange system for a personal communication service, characterized in that connected to the network manager in the form of a forming structure on behalf of the wireless private exchanges of the switching network. 2. The system of claim 1, wherein each wireless private exchange network connects connections of respective wireless private exchanges to each other in a mesh form. When an external subscriber transmits a call signal for calling a mobile device belonging to the first wireless private switching network entered into the management area of the second wireless private switching network, the first wireless private exchange sends a first mobile device location manager to confirm the location of the mobile device. Requesting, and when the first portable location manager identifies the location of the portable device and informs the first wireless private exchange, the first wireless private exchange exchanges the location of the portable device. And transmitting a request signal to a second wireless private exchange through a second gateway bureau wireless private exchange to a second wireless private exchange through a transmission signal with a first wireless private exchange through the second wireless private exchange. Confirming whether the portable device belongs to a second portable device location manager; If it is confirmed by the second portable device location manager that the second mobile private exchange belongs to the second wireless private exchange, transmitting the transmission path request signal received at the second wireless private exchange to the portable device; And when the portable device receives the response, connecting the second wireless private exchange with the first wireless private exchange transmission path and allowing a call to be made between the external subscriber and the portable device. Operation method of a wireless private exchange for a personal communication service. The method according to claim 4, wherein at the end of the call, the network manager closes the transmission path established between the first and second gateway stations. A method of operating a wireless private exchange for a personal communication service, characterized by first notifying the network manager of the state of termination by the gateway station of the side attempting the termination.