Public land mobile network / private wireless network-integrated service network and system for the same

• US 20030100342A1
• Filed: 11/19/2002
• Published: 05/29/2003
• Est. Priority Date: 11/28/2001
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Gui-Jung, Ham, Young-Cheol
• Granted Patent: US 7,424,313 B2
• Time in Patent Office: Days
• US Class Current: 455/560
• CPC Class Codes: H04W 84/105 PBS [Private Base Station] network H04W84/12 - H04W84/16 take precedence
• CPC Class Codes: H04W 84/16 WPBX [Wireless Private Branch Exchange]
• CPC Class Codes: H04W 88/12 Access point controller devices
• CPC Class Codes: H04W 92/02 Inter-networking arrangements

Abstract

A public land mobile network (PLMN)/private wireless network-integrated service network and a system for the service network. The service network according to the present invention can interwork with any PLMN with no dependence on an upper system. In the present invention, there is no need for a public BSC and a separate private BSC. The novel BSC handles both public and private data and voice calls placed from or placed to a mobile station or terminal. The novel BSC enables a wireless phone or terminal to place and receive calls using either the public communications network or the private communications network. Thus, the need for a redundant private BSC is eliminated while providing the diversity of services to mobile stations.

Claims

1. An apparatus, comprising:

a mobile switching center (MSC) in the PLMN, said MSC being part of a public mobile communications network and being used for only voice calls;

a base transceiver station (BTS);

a private branch exchange (PBX), said PBX being part of a private mobile communications network and being used for only voice calls; and

a PLMN/private wireless network-integrated service system connected to the MSC, the BTS and the PBX, the service system enabling a mobile station through wireless communication with the BTS to connect to either said public mobile communications network or said private mobile communications network, said service system enabling voice data to travel between said mobile station and either said MSC or said PBX depending on whether a call uses the public mobile communications network or the private mobile communications network.

2. The apparatus of claim 1, a LAN cable connecting the service system to said PBX and a T1 or an E1 connection connecting the service system with the MSC.

3. The apparatus of claim 1, the service system being further connected to a public data service network (PDSN) and an intranet to provide data calls using said public mobile communications network and said private mobile communications network, respectively, to and from said mobile station.

4. The apparatus of claim 3, said service system comprising:

an inner switch for enabling inter-processor communications (IPCs) between said service system and said MSC, PBX, PDSN and said intranet;

a public-used transcoder/MSC link interface disposed between said inner switch and said MSC and serving as an interface to said MSC, said public-used transcoder/MSC link interface handling all voice calls to and from said mobile station that use said public mobile communications network;

a local-used transcoder/MSC link interface disposed between said inner switch and said PBX and serving as an interface to said PBX, said local-used transcoder/MSC link interface handling all voice calls to and from said mobile station that use said private mobile communications network;

a BTS link interface connected to the BTS; and

a controller processing all calls to and from the mobile station.

5. The apparatus of claim 4, the controller comprises:

a message routing module performing routing of all calls to or from said mobile station.

a public call process module processing all public calls to and from said mobile station;

a private call process module processing all private calls to and from said mobile station;

a private home location register (HLR) module for managing information about subscribers registered in the private mobile communications network; and

a private MSC module connected to the private HLR, the private MSC module enabling an interworking with the PBX.

6. The apparatus of claim 3, said service system comprising:

a public radio packet interface disposed between said inner switch and said PDSN providing an interface to said PDSN and handling all public data calls to and from said mobile station; and

a private radio packet interface disposed between said inner switch and said intranet providing an interface to said intranet and handling all private data calls to and from said mobile station.

7. A base station controller handling all calls to and from a wireless mobile station, including calls using a public mobile communications network and calls using a private mobile communications network and including voice calls and data calls, said base station controller comprising:

an inner switch enabling inter-processor communications (IPCs) between said mobile station and said public and said private mobile communications networks;

a public-used transcoder/MSC link interface disposed between said inner switch and an MSC disposed in a PLMN to provide voice calls to and from said mobile station using said public mobile communications network;

a local-used transcoder/MSC link interface disposed between said inner switch and a PBX to provide voice calls to and from said mobile station using said private mobile communications network;

a BTS link interface connected to a BTS, said BTS being in wireless communication with said mobile station; and

a controller processing all calls to and from said mobile station.

8. The BSC of claim 7, the controller comprises:

a public call process module processing all calls to and from said mobile station that use said public mobile communications network;

a private call process module processing all calls to and from said mobile station that use said private mobile communications network;

a private home location register (HLR) module managing information about subscribers registered in the private mobile communications network;

a private MSC module connected to the private HLR, the private MSC module enabling an interworking with the PBX; and

a message routing module performing a routing process for all calls to and from said mobile station.

9. The BSC of claim 7, said BSC further comprising:

a local-used radio packet interface disposed between an intranet and said inner switch to provide data calls to and from said mobile station that use said private mobile communications network, said intranet being part of said private mobile communications network; and

a public-used radio packet interface disposed between said inner switch and a PDSN to provide data calls between said mobile station that use said public mobile communications network, said PDSN being part of said public mobile communications network.

10. The BSC of claim 9, said intranet being connected to the Internet enabling said mobile station to access the Internet via said private mobile communications network.

11. The BSC of claim 7, said PBX being connected to a PSTN enabling said mobile station to access said PSTN via said private mobile communications network.

12. The BSC of claim 7, said private-used transcoder/MSC link interface being connected to said PBX via a LAN connection.

13. The BSC of claim 7, public-used transcoder/MSC link interface being connected to said MSC via a connection selected from the group consisting of an E1 connection and a T1 connection.

14. A mobile communications network, comprising:

a mobile station;

a BTS in wireless communication with said mobile station;

a BSC connected to said BTS, said BSC connected to a private mobile communications network and a public mobile communications network enabling said mobile station to have access to both said public and said private mobile communications networks.

15. The mobile communications network of claim 14, an MSC being connected to said BSC, said MSC being part of said public mobile communications network.

16. The mobile communications network of claim 15, a PBX being connected to said BSC, said PBX being part of said private mobile communications network.

17. The mobile communications network of claim 14, said BSC being the only BSC in said mobile communications network.

18. The mobile communications network of claim 16, said BSC being the only BSC in said mobile communications network.

19. The mobile communications network of claim 15, said MSC being connected to said BSC via a connection selected from the group consisting of an E1 connection and a T1 connection.

20. The mobile communications network of claim 16, said PBX being connected to said BSC via a LAN connection.