System and method for private radio communication

• US 6,006,099 A
• Filed: 07/08/1997
• Issued: 12/21/1999
• Est. Priority Date: 07/08/1997
• Status: Expired due to Fees

• Current Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Original Assignee: Ericsson Incorporated Research
• Inventors: Doiron, Timothy J., Roderique, William J., Rondeau, Michael N.
• Primary Examiner(s): Hudspeth, David R.
• Assistant Examiner(s): Chawan, Vijay B.
• Application Number:
  US08/889,898
• Time in Patent Office: 896 Days
• Field of Search: 455/462, 455/466, 455/468, 455/403, 455/422
• US Class Current: 455/462
• CPC Class Codes: H04W 84/08 Trunked mobile radio systems

Abstract

An improved private radio communication system and method for routing data signals to multiple remote devices connected to a common remote receiver and for routing data signals to applications both within the remote devices and within the common remote receiver is disclosed.

Claims

1. A private radio system for communications between a multiplicity of users, said private radio system comprising:

a first radio transceiver for use by a first of said multiplicity of users;

a second radio transceiver for use by a second of said multiplicity of users, said first radio transceiver transmitting and said second radio transceiver receiving a data signal from said first user, said data signal including addressing means therein for addressing said data signal to a multiplicity of applications, said data signal corresponding to at least one of said applications;

a plurality of external devices connected to said second radio transceiver, said addressing means addressing said data signal to at least one of a given one of said applications within said second radio transceiver and a given one of said applications located on a respective one of said external devices;

said data signal further coded in an enhanced Data Channel Signaling (DCS) protocol, wherein said enhanced DCS also incorporates command structures compatible with existing equipment; and

said second radio transceiver further for acknowledging receipt of said data messages to said first radio transceiver, wherein said first radio transceiver detecting from said acknowledgment if said acknowledging second radio transceiver is compatible with said enhanced DCS protocol.

2. The private radio system according to claim 1, wherein said data signal includes text data and video images.

3. The private radio system according to claim 1, wherein one of said external devices is a receiving data terminal, said given application located within said receiving data terminal.

4. The private radio system according to claim 1, wherein at least one of said external devices is a printer.

5. The private radio system according to claim 1, wherein at least one of said external devices is an automatic vehicle location receiver.

6. The private radio system according to claim 1, wherein said given one application within said second radio transceiver is an automatic vehicle location receiver.

7. The private radio system according to claim 1, wherein said addressing means comprises a command field and an address field within said data signal, said command and address fields being associated with a given data record within said data signal, said command field including a command and said address field including an address for routing said data record to a given one of said applications.

8. The private radio system according to claim 1, further comprising:

a base station repeater for receiving said data signal transmitted by said first radio transceiver and forwarding said data signal to said second radio transceiver.

9. The private radio system according to claim 1, wherein said first radio transceiver comprises a queuing means for queuing a plurality of data messages therein, a respective one of said data messages corresponding to said data signal transmitted by said first radio transceiver.

10. A method for data transference between a multiplicity of users in a private radio system, said method comprising the steps of:

transmitting, by a first user within said private radio system a data signal in an enhanced Data Channel signaling (DCS) protocol;

receiving, by a second user at a transceiver, said data signal including an address and a command therein to at least one application, wherein said enhanced DCS data signal also incorporating command structures compatible with existing equipment;

routing said data signal, within said transceiver, to a destination device attached to said transceiver and corresponding to said address, said data signal being addressed to at least one of a multiplicity of applications attached to said transceiver, said at least one application being located on said destination device; and

acknowledging receipt of said data signal, said acknowledgment indicating if said receiving transceiver is compatible with said enhanced DCS protocol.

11. The method according to claim 10, wherein said destination device in said step of routing is the receiver.

12. The method according to claim 10, wherein said destination device in said step of routing is an external device.

13. The method according to claim 10, wherein said destination device is a receiving data terminal.

14. A private radio system for communications between a multiplicity of users, said private radio system comprising:

a transmitting data terminal (TDT) for transceiving data messages;

a data originating mobile radio (DOM), said DOM connected to said TDT via a wireline communication link, said DOM for transceiving data messages over an rf channel to a base station repeater;

said base station repeater forwarding data messages over an rf channel to a data receiving mobile (DRM), said DRM for transmitting data messages via a wireline communication link to a receiving data terminal (RDT) and a plurality of remote devices;

an addressing means associated with said TDT for addressing said data messages to applications within said DRM, said RDT and said plurality of remote devices employing an enhanced Data Channel Signaling (DCS) protocol;

said DRM compatible with conventional data messages sent from existing equipment, wherein said DRM forwarding said conventional data messages to said RDT; and

said DRM further for acknowledging receipt of said data messages to said DOM via said base station repeater, wherein said DOM detecting from said acknowledgment if said acknowledging DRM is compatible with said enhanced DCS.

15. The private radio system according to claim 14, wherein said data messages include text messages and video images.