Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2007-09-11
2007-09-11
Eng, George (Department: 2617)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S448000, C455S444000, C455S416000, C455S518000
Reexamination Certificate
active
10747964
ABSTRACT:
A system and method for facilitating communications amongst a plurality of mobile units in a network establishes a plurality of underlay communication cells (201, 220, 222). At least two of the plurality of mobile units are positioned in at least one of the underlay communication cells, the units being capable of communications via the underlay communication cells (201, 220, 222). An overlay communication cell (212) is established and covers the same area as at least the underlay cells (201, 220, 222) that include the at least two of the plurality of mobile units. An association between underlay cells (201, 220, 222) is established that include the at least two mobile units and the overlay communication cell (212). A group communication call is established between the at least two mobile units using the overlay cell.
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Dua Sanjay
Erickson Paul M.
Wilson Timothy J.
Cho Un C.
Eng George
Motorola Inc.
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