Virtual cell mapping in macrodiverse wireless networks with...

Details Virtual cell mapping in macrodiverse wireless networks with... Virtual cell mapping in macrodiverse wireless networks with...

2006-03-07

2006-03-07

Chin, Stephen (Department: 2634)

Pulse or digital communications

Spread spectrum

Frequency hopping

C375S136000, C375S137000, C370S347000

Reexamination Certificate

active

07010015

ABSTRACT:
A communication system for communication with mobile stations through a plurality of base stations at macrodiverse locations and with frequency hopping (FH). Two or more adjacent base stations communicate with mobile stations in a region between the adjacent base stations using coordinated orthogonal frequency hopping sequences. The communication system operates with virtual cells formed of physical sectors from adjacent base stations. Where base stations each operate with three sectors, virtual cells use three adjacent sectors of three adjacent base stations, respectively, and the coordinated orthogonal frequency hopping sequences are used for the adjacent sectors of each of the virtual cells. For GSM, the coordinated orthogonal frequency hopping sequences in each virtual cell are defined by a single hopping sequence number (HSN) and a set of mobile allocation index offsets (MAIOs). Fast macrodiversity switching is employed in combination with FH.

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