Radio group call initiator identification storage and recall

• US 5,530,916 A
• Filed: 10/11/1994
• Issued: 06/25/1996
• Est. Priority Date: 10/11/1994
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Schultz, Charles P.
• Primary Examiner(s): Pham, Chi H.
• Application Number:
  US08/320,728
• Time in Patent Office: 623 Days
• Field of Search: 455/34.1, 455/34.2, 455/53.1, 455/54.1, 455/54.2, 455/56.1, 340/825.44
• US Class Current: 455/518
• CPC Class Codes: H04W 84/08 Trunked mobile radio systems

Abstract

In a radio communication system (100), radios initiating calls have their radio IDs stored by other radios in the radio communication system. The radio initiating the call can then send a voice request to a select one of the other radios in the system to establish a private conversation or other type of radio call (e.g., call alert, etc.) requiring the ID of the initiator radio. Since the other radios in the system automatically stored the ID of the radio initiating the call, they can establish a call with the initiator radio without even knowing that radio'"'"'s ID number.

Claims

1. A method for establishing an individual call between first and second radios which are among a plurality of radios in a communication system, comprising the steps of:

(a) transmitting a group message by the first radio which includes its radio ID number;

(b) automatically storing the radio ID number of the first radio by each of the other radios from among the plurality of radios;

(c) sending a voice message by the first radio to the second radio requesting that the second radio establish an individual call with the first radio; and

(d) transmitting a request by the second radio for establishing an individual call with the first radio which includes the radio ID number of the first radio.

2. A method as defined in claim 1, wherein the communication system is a trunked radio communication system.

3. A method as defined in claim 1, wherein the individual call request in step (d) is sent to a communication system controller which assigns a communication resource for use by the first and second radios.

4. A method as defined in claim 3, wherein the communication resource comprises a repeater.

5. A method as defined in claim 1, wherein the individual call request comprises a private call request between the first and second radios.

6. A method as defined in claim 1, wherein the individual call request comprises a call alert page from the second radio to the first radio and the further step is performed:

(e) receiving the request transmitted by the second radio at the first radio and generating an alert in response to the reception of the request.

7. A method for establishing an individual call between first and second radios which are among a plurality of radios in a trunked radio communication system, the plurality of radios being assigned to a plurality of radio talk groups and the first and second radios are assigned to the same radio talk group, the trunked radio communication system having a plurality of repeaters and a system controller for assigning the use of the repeaters, the method comprising the steps of:

(a) transmitting by the first radio a talk group call request which includes the radio ID number of the first radio;

(b) storing the radio ID number of the first radio by each of the plurality of radios which are assigned to the first radio'"'"'s radio talk group which includes the second radio;

(c) sending a voice message by the first radio to the second radio requesting that the second radio establish an individual call with the first radio; and

(d) transmitting a request by the second radio for establishing an individual call with the first radio which includes the radio ID number of the first radio.

8. A method as defined in claim 7, wherein step (b) is performed automatically.

9. A method as defined in claim 7, wherein the individual call comprises a private call and the following further steps are performed:

(e) receiving the individual call request at the central controller; and

(f) assigning one from among the plurality of repeaters exclusively to the first and second radios so that they can carry out their private call.

10. A method as defined in claim 7, wherein the individual call comprises a call alert page and in step (d) the request sent by the second radio alerts (pages) the first radio.