Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2004-12-01
2011-12-20
Harper, Kevin C (Department: 2462)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C455S446000
Reexamination Certificate
active
08081605
ABSTRACT:
A method of assigning scrambling codes to cells of a CDMA cellular mobile communications network includes assigning to each cell of a set of cells of a network area a cell attribute adapted to identify a cell typology, and, for each cell, assigning a respective primary scrambling code according to the cell typology, exploiting said cell attribute. The cell attribute includes a first attribute value adapted to identify a cell in which a complexity of computation to be performed by the user equipment for determining the cell primary scrambling code is to be minimized, and a second attribute value adapted to identify a cell in which a synchronization time of mobile communications user equipment is to be minimized. If the cell has an attribute value equal to said first attribute, the cell is assigned a primary scrambling code different from the primary scrambling codes assigned to neighboring cells. If the cell has an attribute value equal to said second attribute, the cell is assigned a primary scrambling code not belonging to a code group to which a primary scrambling code assigned to a neighboring cell belongs.
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Jung et al.; “Scrambling Code Planning for 3GPP W-CDMA Systems”; IEEE VTS 53RDVehicular Technology Conference, vol. 4 of, Conf. 53, pp. 2431-2434, (2001).
Francalanci Indro
Panico Massimiliano
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Harper Kevin C
Murphy Rhonda
Telecom Italia S.p.A.
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