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
Title | Year | Author | Number |
---|---|---|---|
SPECTRALLY EFFECTIVE CODE-DIVISION TRANSMITTER | 2005 |
|
RU2287904C2 |
MULTI-CHANNEL TRANSMITTER OF SIGNALS WITH PSEUDO-RANDOM ADJUSTMENT OF WORKING FREQUENCY | 2006 |
|
RU2320093C1 |
TRANSMITTER WITH CODE DIVISION OF CHANNELS WITH STRUCTURAL SECURITY OF TRANSMITTED SIGNALS | 2011 |
|
RU2494550C2 |
TRANSMITTER WITH CODE DIVISION OF CHANNELS WITH STRUCTURAL SECURITY OF TRANSMITTED SIGNALS | 2014 |
|
RU2553055C1 |
MULTICHANNEL TRANSMITTER FOR SPECTRALLY EFFICIENT RADIO COMMUNICATION SYSTEM | 2014 |
|
RU2553083C1 |
MULTICHANNEL SPECTRAL-EFFICIENT TRANSMITTER WITH QUADRATURE AMPLITUDE-INVERSE MODULATION WITH COHERENT FREQUENCY-CODE CHANNEL SEPARATION | 2021 |
|
RU2770857C1 |
TRANSMITTER WITH COHERENT FREQUENCY-CODE DIVISION OF CHANNELS AND WITH HIGH STRUCTURAL SECURITY OF TRANSMITTED SIGNALS | 2018 |
|
RU2700690C1 |
PRIMARY SYNCHRONIZATION AND FRAME SYNCHRONIZATION IN EXTENDED-SPECTRUM COMMUNICATION SYSTEM | 1999 |
|
RU2199185C2 |
CONVOLUTION CODER WITH ALGORITHM OF THRESHOLD DECODING | 0 |
|
SU1327296A1 |
ALTERNATING RATE STATION TRANSMISSION IN SPREAD SPECTRUM COMMUNICATION SYSTEM USING GROUP ENCODING | 1994 |
|
RU2142201C1 |
Authors
Dates
2007-07-20—Published
2005-12-20—Filed