US 2008/0167062 A1 · SYSTEM AND METHOD FOR INTERRUPTING A TRANSMITTING COMMUNICATION UNIT IN A COMMUNICATION SYSTEM

Abstract

A system and method for interrupting a transmitting communication unit in a communication system. When a call is first initiated, the call is assigned to a communication channel and broadcast from a base site using the assigned communication channel. If it is determined that a transmitting communication unit should be interrupted, a zone controller signals a base site to generate an interrupt message. The base site generates an interrupt message containing an identification code for the transmitting communication unit and broadcasts the interrupt message on an outbound link of the communication channel. The transmitting communication unit, while transmitting on an inbound link of the communication channel, continuously monitors the outbound link. If the transmitting communication unit receives, on the outbound link, an interrupt message containing an identification code matching its own identification code, the transmitting communication unit stops transmitting.

Claims20

Dependent claims

A method for interrupting a communication unit transmitting a call in a communication system, the method comprising:

assigning the call to a communication channel;
receiving the call from the communication unit on an inbound link of the communication channel;
determining whether the communication unit should be interrupted;
sending an interrupt grant to a base site upon determining that the communication unit should be interrupted;
generating, at the base site, an interrupt message upon receiving the interrupt grant;
and
broadcasting the interrupt message to the communication unit.

4 more elements

A communication system capable of interrupting transmission of a call on a communication channel comprising;

a controller configured to assign the call to the communication channel, and subsequently send an interrupt grant upon determining that transmission of the call should be interrupted;
a base site coupled to the controller, the base site being configured to receive the call on an inbound link of the communication channel, to subsequently receive the interrupt grant, to generate an interrupt message upon receiving the interrupt grant, and to broadcast the interrupt message to the communication channel;
a communication unit in wireless communication with the base site, the communication unit being configured to transmit the call on the inbound link, to determine whether the interrupt message has been transmitted from the base site, and to cease transmission of the call on the inbound link upon determining that the embedded signaling information field includes the interrupt message.

Dependencies are inferred from the claim text.

System and method for interrupting a transmitting communication unit in a communication system

Life of this patent

System and method for interrupting a transmitting communication unit in a communication system

Life of this patent

Abstract

Claims20