RU96112174A - SQUARE MULTIPLEXING OF TWO DATA SIGNALS EXTENDED BY VARIOUS PN PN SEQUENCES - Google Patents

Claims (28)

1. A system for modulating the first and second information signals for transmission in spread spectrum communication systems, comprising means for generating common-mode pseudo-random (PN _I ) noise and 90 ° phase-shifted pseudo-random (PN _Q ) noise of specified PN codes, means for generating an orthogonal functional signal, means for combining the PN _I signal with the first information signal and the orthogonal functional signal to obtain a modulated signal I and for combining the PN _Q signal with a second information signal and an orthogonal functional signal for obtaining a modulated signal Q, means for modulating the in-phase (I) and phase-shifted 90 ° (Q) carrier signals of a given phase relationship with I and Q modulation signals, respectively. 2. The system according to claim 1, in which the means for combining includes means for two-phase modulation of the first information signal PN _I signal and for two-phase modulation of the second information signal PN _Q signal.  3. The system of claim 1, wherein the means for generating an orthogonal functional signal includes means for selecting an orthogonal function from the set of Walsh orthogonal functions and means for extracting the orthogonal functional signal based on the selected orthogonal function. 4. A system for modulating an information signal transmitted over an in-phase (I) and phase-shifted 90 ° (Q) channel of a spread spectrum communication system using a carrier signal and a carrier signal repetition signal with a 90 ° phase-shifted signal, comprising means for separating an information signal to the first and second parts for transmission to one or more designated receiving subscribers on I and Q channels, means for generating an orthogonal functional signal, means for generating common mode signals osluchaynogo (PN _I) noise and phase-shifted by 90 ° pseudorandom (PN _Q) Noise predetermined PN codes, means for combining the PN _I signal with the first portion of the information signal and said orthogonal function signal to provide a modulated signal I and for combining PN _Q signal with the second part of the information signal and the orthogonal functional signal for receiving the modulated signal Q, means for modulating the carrier signal and the signal repetition of the carrier signal I and Q by modulation signals, respectively.  5. The system of claim 4, further comprising means for summing the synchronization control signal with the information signal, the synchronization control signal being an indicator of the propagation delay of the signal over the I and Q channels of the communication system. 6. The system of claim. 4, wherein said means for combining includes means for biphase modulating signal I PN _I modulation signal and the modulation signal to the two-phase modulation Q PN _Q signal. 7. A code division multiple access (CDMA) communication system for receiving in-phase (I) and 90 ° (Q) phase-shifted spread-spectrum communication channels that transmit the first and second information signals, comprising means for generating common-mode pseudo-random signals (PN _I ) noise and 90 ° phase-shifted pseudo-random (PN _Q ) noise of the specified PN codes, means for generating an orthogonal functional signal, means for combining the PN _I signal with the first information signal and a rotational functional signal for obtaining a modulated signal 1 and for combining a PN _Q signal with a second information signal and an orthogonal functional signal for receiving a modulated signal Q, means for modulating in-phase (I) and 90 ° (Q) phase-shifted carrier signals of a given phase relation the indicated I and Q modulation signals and for transmitting I and Q carrier signals over the I and Q communication channels, respectively, reception means for evaluating at least the first information signal in otvetstvii with I and Q modulated carrier signals received on I and Q communication channels.  8. The communication system of claim 7, wherein the receiving means further comprises means for demodulating the I and Q modulated carrier signals received on the I and Q communication channels into intermediate received signals using an orthogonal functional signal. 9. The communication system of claim 8, wherein the receiving means further comprises means for generating a first convolutional signal by repeating the PN _I signal and first means for correlating the intermediate received signals using the first convolutional signal to obtain a first set of common mode (I) and shifted 90 ° phase (Q) of projection signals.  10. The communication system according to claim 7, further comprising means for combining the orthogonal functional signal with the probe signal to obtain a modulated probe signal, means for transmitting the modulated probe signal through the probe channel.  11. The communication system of claim 10, wherein the receiving means further comprises means for evaluating a test carrier signal by demodulating using an orthogonal functional signal, wherein the modulated test signal is transmitted through the test channel and the first phase rotation means for evaluating the information signal based on the first a set of indicated I and Q projections and evaluation of the test carrier signal. 12. The communication system of claim 11, wherein the receiving means further comprises means for generating a second convolutional signal by repeating the PN _Q signal and second means for correlating the intermediate received signals using the second convolutional signal to obtain a second set of common mode (I) and shifted in 90 ° phase (Q) of the projection signals.  13. The communication system of claim 12, wherein the receiving means further comprises second phase rotation means for evaluating the second information signal based on the second set of I and Q projections and evaluating the test carrier signal.  14. The communication system of claim 11, wherein the receiving means further comprises means for delaying a first set of I and Q projection signals. 15. The method of transmitting the first and second information signals in a spread spectrum communication system, which consists in generating signals of common-mode pseudo-random (PN _I ) noise and 90 ° phase-shifted pseudo-random (PN _Q ) noise of given PN codes, orthogonal functional generation signal combined PN _I signal with the first information signal and said orthogonal function signal to provide a modulated signal I and PN _Q signal is combined with the second information signal and said orthogonal function ignalom to obtain a modulated signal Q, modulated inphase (I) and phase-shifted by 90 ° (Q) carrier signals of a predetermined phase relationship I and Q modulation signals, respectively. 16. The method according to p. 15, in which additionally carry out a two-phase modulation I of the modulation signal PN _I signal and two-phase modulation of the Q signal modulation PN _Q signal.  17. The method of claim 16, wherein, when generating an orthogonal functional signal, an orthogonal function is selected from the set of Walsh orthogonal functions and an orthogonal functional signal is obtained based on the selected orthogonal function.  18. The method according to p. 17, in which additionally transmit modulated I and Q carrier signals on I and Q communication channels, respectively. 19. A method for modulating an information signal transmitted in phase (I) and phase-shifted by 90 ° (Q) channels of a spread spectrum communication system using a carrier signal and repeating the carrier signal with a phase shifted by 90 °, which is divided information signal to the first and second parts for transmission to one or more designated receiving subscribers on I and Q channels, generate an orthogonal functional signal, generate a common-mode pseudo-random (PN _I ) noise and phase-shifted signal 90 ° pseudo-random (PN _Q ) noise of the given PN codes, combine the PM _I signal with the first part of the information signal and the orthogonal functional signal to obtain a modulated signal I and combine the PN _Q signal with the second part of the information signal and the orthogonal functional signal to obtain the modulated signal Q modulate the carrier signal and the repetition of the carrier signal I and Q by modulation signals, respectively.  20. The method according to p. 19, which further summarizes the synchronization control signal with the information signal, the synchronization control signal indicating the propagation delay of the signal on the I and Q channels of the communication system. 21. The method according to p. 20, in which additionally carry out two-phase modulation I of the modulation signal PN _I signal and two-phase modulation of the Q signal modulation PN _Q signal. 22. A method for obtaining in-phase (I) and phase-shifted 90 ° (Q) communication channels with spread spectrum, through which the first and second information signals are transmitted in a code division multiple access communication system (CDMA), which consists in generate signals in-phase pseudorandom (PN _I) and noise phase shifted by 90 ° pseudorandom (PN _Q) specified noise PN code generating an orthogonal function signal are combined PN _I signal with the first information signal and said orthogonal function signal to produce a modulated signal I and combined PN _Q signal with the second information signal and said orthogonal function signal to provide a modulated signal Q, modulated inphase (I) and phase-shifted by 90 ° (Q) carrier signals of a predetermined phase relationship I and Q signals modulation transmit I and Q carrier signals on I and Q communication channels, respectively, receive estimates of at least the first information signal in accordance with I and Q modulated carrier signals received on I and Q communication channels.  23. The method of claim 22, further comprising demodulating the I and Q modulated carrier signals received on the I and Q communication channels into intermediate received signals using an orthogonal functional signal. 24. The method of claim 23, further comprising generating a first convolution signal by repeating the PN _I signal and correlating intermediate received signals using the first convolution signal to obtain a first set of in-phase (I) and 90 ° (Q) phase-shifted signals projection.  25. The method of claim 22, further comprising combining the orthogonal functional signal with the probe signal to obtain a modulated probe signal, and transmitting said modulated probe signal through the probe channel.  26. The method of claim 25, further comprising demodulating said modulated probe signal transmitted over the probe channel, obtaining an estimate of the probe signal transmitted over the probe channel, and generating an estimate of the first information signal based on the first set of said I and Q projections and the estimate of said test carrier signal. 27. The method of claim 26, further comprising generating a second convolution signal by repeating the PN _Q signal and correlating intermediate received signals using the second convolution signal to obtain a second set of in-phase (I) and 90 ° phase-shifted (Q ) projection signals.  28. The method according to p. 27, in which additionally generate an estimate of the second information signal based on the second set of I and Q projections and estimates of the transmitted test carrier signal.