Communication system network that includes a BIM status update method

• US 5,228,038 A
• Filed: 03/11/1991
• Issued: 07/13/1993
• Est. Priority Date: 04/16/1990
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Maher, John W., Jestice, Calvin V., Christensen, Laura
• Primary Examiner(s): Olms, Douglas W.
• Assistant Examiner(s): KIZOU, HASSAN
• Application Number:
  US07/709,002
• Time in Patent Office: 855 Days
• Field of Search: 370/13, 370/16, 370/17, 370/56, 370/58.1-58.3, 370/77, 370/79, 370/85.13-85.14, 370/94.3, 370/110.1, 370/94.1, 370/112, 455/9, 455/34.1, 455/54.1, 455/56.1, 455/53.1, 379/63, 379/58, 340/825.06
• US Class Current: 370/426
• CPC Class Codes: H04W 84/08 Trunked mobile radio systems

Abstract

In a communication system network that includes a processing multiplexer, a plurality of communication units, and a plurality of communication systems, each of the plurality of communication systems includes a base interface modules for interfacing the communication system with a limited number of repeaters that transceive information amongst the plurality of communication units and a processing multiplexer interface module for interfacing the communication system with the processing multiplexer. Each processing multiplexer interface module includes a base interface database that stores base interface status information of the base interface module of each of the plurality of communication systems that is periodically updated. The base interface database is updated when a processing multiplexer interface module of one of the plurality of communication systems detects a change in the base interface status information of the one of the plurality of communication systems. Once a change is detected, the processing multiplexer interface module stores the change and transmits the change to the processing multiplexer interface module of the other communication systems. The processing multiplexer interface module also transmits unchanged base interface status information at varying time intervals to the processing multiplexer interface module of the other communication systems.

Claims

1. In a communication system network that includes a processing multiplexer, a plurality of communication units, and a plurality of communication systems, wherein each of the plurality of communication systems includes base interface means for interfacing with a limited number of repeaters that transceive information amongst the plurality of communication units and processing multiplexer interface means for interfacing the communication system with the processing multiplexer, and wherein each processing multiplexer interface means includes a base interface database that stores base interface status information of the base interface means of each of the plurality of communication systems, a method for maintaining the base interface database in each of the plurality of communication systems, the method comprises the steps of:

a) detecting, by a processing multiplexer interface means of one of the communication systems, a change in base interface status information of the base interface means of the one of the communication systems;

b) storing the changed base interface status information in the base interface database of the processing multiplexer interface means;

c) transmitting, by the processing multiplexer interface means, the changed base interface status information to the processing multiplexer interface means of the other communication systems when the change in the base interface status information is detected; and

d) transmitting, by the processing multiplexer interface means, unchanged base interface status information to the processing interface means of the other communication systems at varying time intervals.

2. The method of claim 1 further comprises determining a subsequent varying time interval based upon changed base interface status information transmissions during a preceding varying time interval and quantity of base interface status information in the base interface information database.

3. In the method of claim 2, step (d) further comprises transmitting a predetermined number of unchanged base interface status information at the expiration of a varying time interval.

4. The method of claim 3 further comprises transmitting all base interface status information within a predetermined time period.

5. In a communication system network that includes a processing multiplexer, a plurality of communication units, and a plurality of communication systems, wherein each of the plurality of communication systems includes base interface means for interfacing with a limited number of repeaters that transceive information amongst the plurality of communication units and processing multiplexer interface means for interfacing the communication system with the processing multiplexer, and wherein the processing multiplexer interface means of each of the plurality of communication systems comprises:

base interface database means for storing base interface status information of the base interface means of each of the plurality of communication systems;

detection means, operably coupled to the base interface database means, for detecting a change in the base interface status information of the base interface means of the respective communication system;

varying time means, operably associated with the base interface database means and the detection means, for determining varying time intervals, wherein a varying time interval is based upon changed base interface status information transmissions during a preceding varying time interval and quantity of base interface status information in the base interface information database; and

transmission means, operably coupled to the base interface database means, the detection means, and the varying time means, for transmitting changed base interface information when it is detected and for transmitting a predetermined portion of unchanged base interface information at the varying time intervals.