Title:
METHOD AND APPARATUS FOR CODE ASSIGNMENT IN A SPREAD SPECTRUM WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO2002049231
Kind Code:
A3
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 systeme to reduce interference between neighbors. In one embodiment, a controller determines the subsets and makes the assignments to cells within the system.
Inventors:
WEI YONGBIN
BLACK PETER J
TIEDEMANN EDWARD G JR
BLACK PETER J
TIEDEMANN EDWARD G JR
Application Number:
PCT/US2001/047760
Publication Date:
February 06, 2003
Filing Date:
December 13, 2001
Export Citation:
Assignee:
QUALCOMM INC (US)
International Classes:
H04B1/7097; H04J13/18; (IPC1-7): H04B1/707
Domestic Patent References:
| WO2001095515A1 | 2001-12-13 | |||
| WO2001095644A1 | 2001-12-13 |
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