Method for establishing and maintaining communication processing information for a group call

• US 5,450,405 A
• Filed: 04/02/1993
• Issued: 09/12/1995
• Est. Priority Date: 04/02/1993
• Status: Expired due to Term

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Duran, James C., Maher, John W.
• Primary Examiner(s): HSU, ALPUS
• Application Number:
  US08/042,225
• Time in Patent Office: 893 Days
• Field of Search: 370/16, 370/54, 370/58.1-58.3, 370/62, 370/77, 370/79, 370/80, 370/85.1, 370/85.7, 370/85.13, 370/94.1, 370/951, 370/110.1, 370/112, 370/94.3, 340/825.03, 340/825.06, 340/825.15, 340/825.22, 340/825.44, 340/825.47, 379/58, 379/59, 379/61, 379/63, 379/158, 379/202, 455/33.1, 455/34.1, 455/49.1, 455/53.1, 455/54.1, 455/542, 455/56.1
• US Class Current: 370/261
• CPC Class Codes: H04W 84/08 Trunked mobile radio systems

Abstract

When a group communication group call is initiated in a multi-site communication system, the communication processing information for that particular communication group call must be established. The communication processing information is formatted by a central controller which in turn transfers that information to a destination data base of a processing multiplexer switch. The information is then stored in the destination data base such that the particular communication group call may be quickly processed. When the communication unit that initiated the call ceases to transmit and another communication unit begins to transmit, the communication processing information is updated to reflect the change in the transmitting communication unit. This continues to happen until the particular communication group call has ended; once it has ended, the communication processing information is deleted from the destination data base.

Claims

1. In a multi-site communication system that includes a plurality of sites, a central controller, a plurality of communication units that are arranged into communication groups, and a processing multiplexer, wherein the processing multiplexer includes a central controller interface and a destination database, and a plurality of site interfaces, wherein the processing multiplexer is operably coupled to each of the plurality of sites and the central controller, a method for establishing and maintaining communication processing information for a particular communication group call, the method comprises the steps of:

a) when the particular communication group call is initiated, formatting, by the central controller, communication processing information, wherein the communication processing information includes source information, destination information, and a set up command;

b) transferring, by the central controller interface, the communication processing information from the central controller to the plurality of site interfaces;

c) storing, by at least one of said plurality of site interface, the communication processing information in the destination database;

d) when a source change occurs, generating, by the central controller, subsequent communication processing information based on the source change, wherein the subsequent communication processing information includes subsequent source information, the destination information and a change source command;

e) transferring, by the central controller interface, the subsequent communication processing information from the central controller to the destination database; and

f) overwriting, by at least one of said plurality of site interfaces, portions of the communication processing information, in the destination database, with portions of the subsequent communication processing information that have changed from the communication processing information.

2. The method of claim 1 further comprises the step of adding;

by at least one of said plurality of site interfaces, destination information of a new destination to the communication processing information.

3. The method of claim 1 further comprises the step of deleting, by at least one of said plurality of site interfaces, destination information of a destination from the communication processing information.

4. The method of claim 1 further comprises the step of:

when the particular communication group call ends, deleting, by at least one of said plurality of site interfaces, the communication processing information and the portions of the subsequent communication processing information from the destination database.

5. The method of claim 1 further comprises the step of adding, by at least one of said plurality of site interfaces, source information of a new source to the communication processing information such that the new source is added to a conference call.

6. The method of claim 5 further comprises the step of deleting, by at least one of said plurality of site interfaces, source information of a deleted source from the communication processing information such that the deleted source is deleted from the conference call.

7. In a multi-site communication system that includes a plurality of sites, a central controller, a plurality of communication units that are arranged into communication groups, and a processing multiplexer, wherein the processing multiplexer includes a central controller interface and a destination database, and a plurality of site interfaces, wherein the processing multiplexer is operably coupled to each of the plurality of sites and the central controller, a method for establishing and maintaining communication processing information for a particular communication group call, the method comprises the steps of:

a) when the particular communication group call is initiated by a first communication unit, formatting, by the central controller, communication processing information, wherein the communication processing information includes at least an address of a site that the first communication unit is located in, an address of at least one destination site, and a set up command;

b) transferring, by the central controller interface, the communication processing information from the central controller to the plurality of site interfaces;

c) storing, by at least one of said plurality of site interfaces, the communication processing information in the destination database;

d) when the first communication unit stops transmitting and a second communication unit begins to transmit, generating, by the central controller for each of the at least one destination site, subsequent communication processing information, wherein the subsequent communication processing information includes an address of a site that the second communication unit is located in, the address of the at least one destination site, and the address of the site that the first communication unit is located in;

e) transferring, by the central controller interface, the subsequent communication processing information from the central controller to the destination database; and

f) overwriting, by at least one of said plurality of site interfaces, portions of the communication processing information, in the destination database, with portions of the subsequent communication processing information that have changed from the communication processing information.

8. The method of claim 7 further comprises the step of adding, by at least one of said plurality of site interfaces, an address of a new destination site to the communication processing information.

9. The method of claim 7 further comprises the step of deleting, by at least one of said plurality of site interfaces, an address of a destination site from the communication processing information.

10. The method of claim 7 further comprises the step of:

when the particular communication group call ends, deleting, by at least one of said plurality of site interfaces, the communication processing information and the portions of the subsequent communication processing information from the destination database.

11. In a multi-site communication system that includes a plurality of sites, a central controller, a plurality of communication units that are arranged into communication groups, and a processing multiplexer, wherein the processing multiplexer includes a central controller interface and a destination database, and a plurality of site interfaces, wherein the processing multiplexer is operably coupled to each of the plurality of sites and the central controller, a method for the central controller to provide communication processing information of a particular communication group call to the destination database, the method comprises the steps of:

a) when the particular communication group call is initiated, formatting, by the central controller, communication processing information, wherein the communication processing information includes source information, destination information, and a set up command;

b) transferring, by the central controller interface, the communication processing information from the central controller to the plurality of site interfaces;

c) storing, by at least one of said plurality of site interfaces, the communication processing information in the destination database;

d) when a source change occurs, generating, by the central controller, subsequent communication processing information based on the source change, wherein the subsequent communication processing information includes subsequent source information, the destination information and a change source command;

e) transferring, by the central controller interface, the subsequent communication processing information from the central controller to the destination database; and

f) overwriting, by at least one of said plurality of site interfaces, portions of the communication processing information, in the destination database, with portions of the subsequent communication processing information that have changed from the communication processing information.

12. The method of claim 11 further comprises the step of adding, by at least one of said plurality of site interfaces, destination information of a new destination to the communication processing information.

13. The method of claim 11 further comprises the step of deleting, by at least one of said plurality of site interfaces, destination information of a destination from the communication processing information.

14. The method of claim 11 further comprises the step of:

when the particular communication group call ends, transmitting, by at least one of said plurality of site interfaces, a delete communication processing information message to the destination database such that the communication processing information and the portions of the subsequent communication processing information are deleted from the destination database.

15. The method of claim 11 further comprises the step of adding, by at least one of said plurality of site interfaces, source information of a new source to the communication processing information such that the new source is added to a conference call.

16. The method of claim 15 further comprises the step of deleting, by at least one of said plurality of site interfaces, source information of a deleted source from the communication processing information such that the deleted source is deleted from the conference call.

17. In a multi-site communication system that includes a plurality of sites, a central controller, a plurality of communication units that are arranged into communication groups, and a processing multiplexer, wherein the processing multiplexer includes a central controller interface and a destination database, and a plurality of site interfaces, wherein the processing multiplexer is operably coupled to each of the plurality of sites and the central controller, a method for the processing multiplexer to maintain communication processing information in the destination database for a particular communication group call, the method comprises the steps of:

a) when the particular communication group call is initiated, receiving communication processing information from the central controller, wherein the communication processing information includes source information, destination information, and a set up command;

b) storing, by at least one of said plurality of site interfaces, the communication processing information in the destination database;

c) when a source change occurs, receiving subsequent communication processing information based on the source change from the central controller, wherein the subsequent communication processing information includes subsequent source information, the destination information and a change source command; and

d) overwriting, by at least one of said plurality of site interfaces, portions of the communication processing information, in the destination database, with portions of the subsequent communication processing information that have changed from the communication processing information.

18. The method of claim 17 further comprises the step of adding, by at least one of said plurality of site interfaces, destination information of a new destination to the communication processing information.

19. The method of claim 17 further comprises the step of deleting, by at least one of said plurality of site interfaces, destination information of a destination from the communication processing information.

20. The method of claim 17 further comprises the step of:

when the particular communication group call ends, receiving, by at least one of said plurality of site interfaces, a delete communication processing information message to the destination database such that the communication processing information and the portions of the subsequent communication processing information are deleted from the destination database.

21. The method of claim 17 further comprises the step of adding, by at least one of said plurality of site interfaces, source information of a new source to the communication processing information such that the new source is added to a conference call.

22. The method of claim 21 further comprises the step of deleting, by at least one of said plurality of site interfaces, source information of a deleted source from the communication processing information such that the deleted source is deleted from the conference call.