SDMA for WCDMA

Details SDMA for WCDMA SDMA for WCDMA

2005-08-26

2011-11-22

Ajibade Akonai, Olumide T (Department: 2617)

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

C370S203000, C370S208000, C370S209000, C370S320000, C370S329000, C370S335000, C370S341000, C370S441000, C455S447000, C455S450000, C455S451000, C455S452100, C455S453000

Reexamination Certificate

active

08064424

ABSTRACT:
Systems and methodologies are described that facilitate increasing system capacity in a code-limited WCDMA (e.g., TDD, FDD, . . . ) wireless communication environment. According to one aspect, a larger code space can be defined by introducing multiple code clusters within a sector, wherein each cluster has a unique scrambling code. Codes within a cluster can have orthogonal Walsh sequences that can be assigned to user devices to facilitate communicating over a wireless network and can overlap with codes in another cluster. The unique scrambling code assigned to each cluster can ensure that duplicate Walsh sequences in another cluster in the same sector appear as a pseudo-noise codes.

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