H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/26 (2006.01) H04Q 7/38 (2006.01) H04Q 7/28 (2006.01)
Patent
CA 2130012
A Method and System for Broadcast and Group Communications in a Communications System Abstract of the Disclosure A communications system is provided comprising at least one base station (18, 19, 20, 21) and a plurality of remote units (22-26). Each remote unit has an identification. The remote units are arrangeable into at least one group and are arranged to communicate with the base station over a radio link. A group service centre (GSC 12) is provided comprising means for receiving trafficfrom an inbound channel from the radio link and copying it into an outbound channel to the radio link. At least one remote unit has means for communicating its identification to the GSC and establishing a communication link with the GSC. In a first aspect the GSC comprises look-up means (102) for correlating theidentification of the remote unit with identifications of other remote units in a common group and means for individually establishing communication links with said other remote units using the identifications of those remote units. In a second aspect remote unit control information is periodically transmitted (208) to each remote unit in the group while the group is established and upon input of atransmission requirement (257) to a remote unit the remote unit transmits on thereserved traffic channel with transmissions adjusted according to the remote unit control information.
Bendle Ian Neville
Crichton Paul
Gowling Lafleur Henderson Llp
Motorola Inc.
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