Method and apparatus for establishing a talk group

• US 7,184,790 B2
• Filed: 04/02/2002
• Issued: 02/27/2007
• Est. Priority Date: 04/02/2002
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Dorenbosch, Jheroen P., Bennett, Richard L.
• Primary Examiner(s): Anderson; Matthew D.
• Assistant Examiner(s): Trinh; Tan
• APPLICATION: US 20030186716A1
• Time in patent office: 1792 Days
• Field of Search: 455/519, 455/518, 455/517, 455/435, 455/509, 455/458, 455/416, 455/456, 455/466, 455/520, 455/415, 455/428, 455/553.1
• US Class Current: 455/519
• CPC Class Codes: H04W 4/08 User group management
• CPC Class Codes: H04W 4/10 Push-to-Talk [PTT] or Push-On-Call services
• CPC Class Codes: H04W 72/005 Resource management for broadcast services
• CPC Class Codes: H04W 76/45 for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

When any remote unit (113–118) desires to create a talk group, it transmits an inbound message to a group call database (112). The inbound message includes the identity of the requesting communication device, and the participants of the talk group. Upon receiving the request, group the call database (112) provides an outbound message to all members of the newly created talk group giving them a chance to opt out of inclusion into the new talk group. The database (112) then creates a database entry with the new talk group and those remote units that positively responded to the outbound message.

Claims

1. A method for establishing a previously undefined talk group within a communication system, the method comprising the steps of:

a first remote unit determining, via over-the-air communication with one or more second remote units, at least one of the one or more second remote units in proximity to the first remote unit;

the first remote unit providing a list of the at least one of the one or more second remote units to infrastructure equipment to establish the previously undefined talk group, wherein providing the list comprises the steps of;

retrieving a previously existing list of ones of the one or more second remote units comprising an existing talk group;

appending the at least one of the one or more second remote units to the previously existing list to create the list;

providing the list to the infrastructure equipment; and

establishing the previously undefined talk group based on the list.