Method and apparatus for code division switching

Details Method and apparatus for code division switching Method and apparatus for code division switching

2005-10-11

2005-10-11

Patel, Ajit (Department: 2661)

Multiplex communications

Communication over free space

Repeater

C370S316000, C370S321000, C370S323000

Reexamination Certificate

active

06954440

ABSTRACT:
Time division multiplexed input signals (i.e., separated into time slots) are spread in each time slot with a destination code. This spreading is applied for destination identification as opposed to signal information modulation. Each spreading signal is associated with a particular destination for a particular time slot. These spread signals are then combined on a code division bus. Output signals for retransmission to the destinations are recovered from the bus by application of despreading codes. Each despread signal has a destination code which appears in its individual time slot. In a variant code division multiplexed signals are directed to a destination by use of time slot interchanger to achieve time division switching to route the CDMA multiplexed channels.

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Gerakoulis, Diakoumis et al, Throughput Evaluation Of A Satellite Switched CDMA (SS/CDMA) Demand Assignment System, 1998, IEEE, p 3632.

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