Method and apparatus for establishing a call in a digital radio communication system
AssigneeMotorola Solutions, Inc.
InventorsDuminda A. Dewasurendra, Lorenzo Cruger, Jr., Mahes M. Ekanayake, Wayne M. Phang
Life of this patent
Estimating the term…
Abstract
A digital radio communication system (200) uses a repeater (216) to relay calls which can not be completed in a direct talk-around mode between two radios. The repeater (216) establishes early synchronization in advance of a pending call by listening to an originator radio (204) attempt to make a direct talk-around call to a target radio (210). Asynchronous digital two-way radio communication systems can benefit from the reduction in voice call connect time.
Claims23
An asynchronous digital two-way radio communication system comprising:
- an originator radio attempting to establish a call in a direct talk-around mode with a target radio by sending synchronization information to the target radio;
- a repeater acquiring the same synchronization information sent by the originator radio to the target radio by listening to the synchronization information to synchronize in advance with the originator radio during the direct talk-around mode attempt, without the originator radio resending the synchronization information, wherein the repeater further relays the call by sending the synchronization information acquired during the direct talk-around mode to the target radio only when the call cannot be completed in the direct talk-around mode thereby reducing call connect time and reducing repeater loading.
A method of establishing a call in a communication system, comprising:
- attempting, by an originator radio, to establish a call in a direct talk-around mode with a target radio by sending synchronization information to the target radio;
- and
- acquiring, by a repeater, the same synchronization information sent by the originator radio to the target radio by listening to the synchronization information to synchronize in advance with the originator radio during the direct talk-around mode attempt, without the originator radio resending the synchronization information, and further relaying the call by sending the synchronization information acquired during the direct talk-around mode to the target radio only when the call cannot be completed in the direct talk-around mode thereby reducing call connect time and reducing repeater loading, the communication system being an asynchronous digital two-way radio communication system.
Dependencies are inferred from the claim text.