Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
2003-11-21
2009-11-17
Jain, Raj (Department: 2416)
Multiplex communications
Communication over free space
Repeater
C370S342000, C370S343000, C370S344000, C370S345000, C370S335000, C370S319000, C375S130000, C375S133000, C375S140000, C375S141000, C375S149000
Reexamination Certificate
active
07620005
ABSTRACT:
Method and apparatus for code assignments in a spread-spectrum wireless communication system incorporating a Large Area Synchronized-Code Division Multiple Access (LAS-CDMA) protocol. The method determines a set of LS codes based on an interference free window size. An arborescence structure provides the correspondence between the interference free window size and the set of LS codes. Subsets of the LS codes are formed having null cross-correlation within the interference free window. The subsets are assigned to neighboring cells in the system to reduce interference between neighbors. In one embodiment, a controller determines the subsets and makes the assignments to cells within the system.
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Black Peter J.
Tiedemann Jr. Edward G.
Wei Yongbin
Eggers Charles
Jain Raj
Oehling George J.
Qualcomm Incorporated
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