Method and system for handling improper registrations

• US 5,301,357 A
• Filed: 08/06/1991
• Issued: 04/05/1994
• Est. Priority Date: 08/06/1991
• Status: Expired due to Term

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Thompson, Michael J.
• Primary Examiner(s): Eisenzopf, Reinhard J.
• Assistant Examiner(s): URBAN, EDWARD F
• Application Number:
  US07/741,018
• Time in Patent Office: 973 Days
• Field of Search: 455/33.1, 455/33.2, 455/33.4, 455/34.1, 455/54.1, 455/56.1, 379/58, 379/59, 379/60
• US Class Current: 455/435.2
• CPC Class Codes: H04W 12/08 Access security
• CPC Class Codes: H04W 12/71 Hardware identity
• CPC Class Codes: H04W 24/04 Arrangements for maintaining operational condition
• CPC Class Codes: H04W 60/06 De-registration or detaching

Abstract

A system and method for providing automatic system deregistration for any incorrectly registered radios is described. The system and method further provides for an automatic re-registration request to be sent in order to guarantee that any valid radios that have the same radio identification information in the system as the incorrectly registered radio to become re-registered. By requesting any radio having the same ID to re-register back with the system, a loss of communication to that radio is thereby prevented.

Claims

1. A method for deregistering a communication device which has incorrectly registered in a communication system, the communication system having a plurality of communication devices each having device identification information operating within the communication system, the plurality of communication devices having registered with the communication system, the method comprising the steps of:

determining at one of the plurality of communication devices that the communication device has incorrectly registered with the communication system;

receiving a deregistration message from the communication device which incorrectly registered with the communication system;

deregistering the incorrectly registered communication device from the communication system; and

requesting that any from among the plurality of communication devices operating in the communication system which has the same device identification information as the communication device which incorrectly registered on the system to re-register with the communication system.

2. The method of claim 1, comprising the further step of:

preventing the communication device which incorrectly registered with the communication system to re-register with the communication system after the communication device has been deregistered from the communication system.

3. The method of claim 1, wherein the communication system is a trunked radio communication system and the communication devices are trunked radios.

4. The method of claim 1, wherein the communication system is cellular system and the communication devices are cellular telephones.

5. The method of claim 1, wherein the deregistration message sent by the incorrectly registered communication device includes the communication device'"'"'s unique identification number and an information field informing the communication system of the incorrect registration.

6. The method of claim 5, wherein the step of requesting any communication device to re-register on the system is performed by a system controller.

7. A radio communication system for use by a plurality of radios, each of the radios having radio identification information and the plurality of radios have registered with the communication system, one from among the plurality of radios in the communication system is incorrectly registered with the communication system and has transmitted a deregistration message, the radio communication system comprising:

means for receiving the deregistration message sent from the radio that incorrectly registered with the radio communication system; and

means for requesting that any from among the plurality of radios that belongs in the radio communication system and that has the same radio identification information as the radio that incorrectly registered with the radio communication system to re-register with the system.

8. The radio communication system of claim 7, wherein the radio communication system is a trunked radio communication system and the radios are trunked radios.

9. The radio communication system of claim 7, wherein the radio communication system is a cellular system and the radios are cellular telephones.

10. The radio communication system of claim 7, wherein the automatically requesting means comprises a system control means that transmits a re-register packet to all the radios in the radio communication system upon receiving the deregistration information from the incorrectly registered radio.

11. The radio communication system of claim 10, wherein the deregistration message sent by the incorrectly registered communication device includes the communication device'"'"'s unique identification number and an information field informing the communication system of the incorrect registration.