Patent ID: 6226524
Filing Date: 2001-05-01
Classification: H04B,H04W

Abstract:
In a radio communication system having a repeater that operates to retransmit, on an outbound channel, signals received via an inbound channel, a method for establishing a call between a first subscriber unit and a second subscriber unit operating within the system, the method comprising the steps of:at the first subscriber unit:(a) transmitting a call setup request on the outbound channel;(b) monitoring the outbound channel for a first time period to detect a response from the repeater to the call setup request;(c) upon receiving a response from the repeater within the first time period, establishing communication with the second subscriber unit in repeater mode by transmitting on the inbound channel; and(d) upon receiving no response within the first time period, establishing communication with the second subscriber unit in talk-around mode by transmitting on the outbound channel.