TRANSMITTER WITH CODE DIVISION OF CHANNELS AND EFFICIENT USAGE OF ALLOCATED FREQUENCY SPECTRUM Russian patent published in 2007 - IPC H04J13/02 

Abstract RU 2303331 C1

FIELD: radio communications.

SUBSTANCE: in known transmitter with code division of channels (IS-95 standard), new elements are additionally introduced, namely: transmitter circuit additionally features P orthogonal code generators, (N+K+J+1) signal spectrum generator, P channel signal adders, channel group signal adder, and each information channels features a divider, second encoder, interlacing device and second symbol compressor, each call channel features divider, second coder and interlacing device and appropriate connections between them for creation of new signal code structure and of a form of code compression of channels.

EFFECT: more than 3 times increased spectral efficiency of communication system.

5 dwg

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RU 2 303 331 C1

Authors

Sivov Viktor Andreevich

Moiseev Vasilij Fedorovich

Savel'Eva Marina Viktorovna

Dates

2007-07-20Published

2005-12-20Filed