CDMA, W-CDMA, 3rd generation interoperable modem format selectable (MFS) systems with GMSK modulated systems

• US 7,593,481 B2
• Filed: 04/24/2004
• Issued: 09/22/2009
• Est. Priority Date: 08/31/1998
• Status: Expired due to Fees

• Current Assignee: Kamilo Feher
• Original Assignee: Kamilo Feher
• Inventors: Feher, Kamilo
• Primary Examiner(s): Wang, Ted M
• Application Number:
  US10/831,724
• Publication Number:
  US 20040196923A1
• Time in Patent Office: 1,977 Days
• Field of Search: 375/299, 375/267, 375/260, 375/295, 375/297
• US Class Current: 375/299
• CPC Class Codes: H04B 1/69 Spread spectrum techniques
• CPC Class Codes: H04B 1/707 using direct sequence modulation
• CPC Class Codes: H04B 2201/70703 using multiple or variable rates
• CPC Class Codes: H04B 7/0871 using different reception schemes, at least one of them being a diversity reception scheme
• CPC Class Codes: H04L 1/0056 Systems characterized by the type of code used H04L1/08 takes precedence
• CPC Class Codes: H04L 2025/03547 Switching between time domain structures
• CPC Class Codes: H04L 2025/03681 Control of adaptation
• CPC Class Codes: H04L 2027/0087 Out-of-band signals, (e.g. pilots)
• CPC Class Codes: H04L 25/03019 adaptive, i.e. capable of adjustment during data reception
• CPC Class Codes: H04L 25/03828 Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties partial response systems H04L25/497
• CPC Class Codes: H04L 25/4902 Pulse width modulation; Pulse position modulation
• CPC Class Codes: H04L 27/00 Modulated-carrier systems
• CPC Class Codes: H04L 27/0004 using wavelets
• CPC Class Codes: H04L 27/0008 arrangements for allowing a transmitter or receiver to use more than one type of modulation negotiating modulation type for two-way transmission paths H04L5/1453
• CPC Class Codes: H04L 27/18 Phase-modulated carrier systems, i.e. using phase-shift keying H04L27/32 takes precedence
• CPC Class Codes: H04L 27/2017 in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation H04L27/201 takes precedence
• CPC Class Codes: H04L 27/2053 using more than one carrier, e.g. carriers with different phases
• CPC Class Codes: H04L 27/2071 in which the data are represented by the carrier phase, e.g. systems with differential coding
• CPC Class Codes: H04L 27/22 Demodulator circuits; Receiver circuits
• CPC Class Codes: H04L 27/2626 Arrangements specific to the transmitter only
• CPC Class Codes: H04L 27/2637 : with direct modulation of individual subcarriers
• CPC Class Codes: H04L 27/2647 : Arrangements specific to the receiver only equalisation H04L27/01
• CPC Class Codes: H04L 27/34 : Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
• CPC Class Codes: H04L 27/3405 : Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
• CPC Class Codes: H04L 27/362 : Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated H04L27/366 takes precedence
• CPC Class Codes: H04L 27/38 : Demodulator circuits; Receiver circuits
• CPC Class Codes: H04L 7/0008 : Synchronisation information channels, e.g. clock distribution lines
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Baseband signal processing network modulator, transmit amplifier and antenna systems for plurality of baseband signals and for providing cross-correlated in-phase and quadrature-phase processed and filtered baseband signals to one or more quadrature modulators for modulation. Time Division Multiple Access (TDMA) cross-correlated processed Time Constrained Signal (TCS) waveforms and Long Response (LR) filtered in-phase (I) and quadrature-phase (Q) baseband signals and spread spectrum Code Division Multiple Access (CDMA) or processed Code Division Multiplexed (CDM) signal, third generation (3G) systems, including TDMA Gaussian Minimum Shift Keying (GMSK) modulated systems. A signal selector device for selecting and providing one of the modulated signals to a set of one or more transmit amplifiers to amplify the selected modulated signal. Transmit amplifiers operated in a Non-Linearly Amplified (NLA) mode for amplification of processed TDMA modulated signals and amplifiers operated in a linearly amplified mode for amplification of processed spread spectrum modulated signals.

Claims

1. A structure comprising:

a input port for receiving a plurality of baseband signals;

a baseband signal processing network for receiving the plurality of baseband signals and providing two or more sets of in-phase and quadrature-phase processed and filtered baseband signals to a quadrature modulator for quadrature modulation, wherein said two or more sets of in-phase and quadrature-phase processed and filtered baseband signals comprise a processed in-phase and quadrature-phase cross-correlated Time Division Multiple Access (TDMA) baseband signal set and a processed in-phase and quadrature-phase Code Division Multiple Access (CDMA) or processed Code Division Multiplexed (CDM) baseband signal set; and

a set of two or more transmit amplifiers to amplify and couple the quadrature modulated amplified signals to two or more antennas.

2. The structure of claim 1 wherein said set of two or more transmit amplifiers comprises, amplifiers operated in a Non-Linearly Amplified (NLA) mode for amplification of processed modulated TDMA signals and of amplifiers operated in a linearly amplified mode for amplification of processed modulated CDMA signals.

3. The structure of claim 1 wherein said processed TDMA signal comprises Time Constrained Signal (TCS) processed waveform and Long Response (LR) filtered signals.

4. The structure of claim 1 comprising a processor modulator and transmitter for processing and modulating Orthogonal Frequency Division Multiplexed (OFDM) signals.

5. The structure of claim 1 comprising a processor and transmit filter for processing and filtering processed TDMA signal for providing a Gaussian filtered in-phase and quadrature-phase baseband signal, a modulation device for processing, modulating and transmitting said Gaussian filtered signal and a demodulator for demodulation of a TDMA modulated signal, wherein said demodulator comprises a receive filter which is mis-matched to said transmit filter.

6. The structure of claim 1 comprising a processor and transmit filter for processing and filtering said processed TDMA signal for providing a Gaussian filtered in-phase and quadrature-phase baseband signal, a modulation device for processing, modulating and transmitting said Gaussian filtered signal and a demodulator for demodulation of a TDMA modulated signal, wherein said demodulator comprises a receive filter which is mis-matched to said transmit filter and said demodulator provides in-phase and quadrature-phase cross-correlated signals.

7. The structure of claim 1 comprising a processor for processing said plurality of baseband signals and providing cross-correlated in-phase and quadrature-phase spread spectrum signals.

8. A method comprising steps of:

receiving, processing, filtering and quadrature modulating a plurality of input signals and providing two or more sets of in-phase and quadrature-phase processed and filtered baseband signals to a quadrature modulator system for quadrature modulation, wherein said two or more sets of in-phase and quadrature-phase processed and filtered baseband signals comprise a processed in-phase and quadrature-phase cross-correlated Time Division Multiple Access (TDMA) baseband signal set and a processed in-phase and quadrature-phase Code Division Multiple Access (CDMA) baseband signal set; and

amplifying quadrature modulated TDMA and CDMA signals by a set of two or more transmit amplifiers and providing amplified signals to two or more antennas for transmission of amplified signal.

9. The method of claim 8 wherein said processing, filtering comprises step of processing and filtering of a input signal into Orthogonal Frequency Division Multiplexed (OFDM) signals.

10. The method of claim 8 comprising steps of transmit filtering by a transmit filter said processed TDMA signal and demodulation of a transmitted TDMA signal by a demodulator for demodulation, wherein said demodulator for demodulation comprises a receive filter which is mis-matched to said transmit filter and said demodulator provides in-phase and quadrature-phase cross-correlated signals.

11. The method of claim 8 comprising steps of processing said input signals into Orthogonal Frequency Division Multiplexed (OFDM) signals and comprising steps of transmit filtering by a baseband transmit filter said processed TDMA signal and demodulation of a transmitted TDMA signal by a demodulator for demodulation, wherein said demodulator for demodulation comprises a baseband receive filter which is mis-matched to said baseband transmit filter, and said demodulator provides in-phase and quadrature-phase cross-correlated signals.

12. A system for processing, modulating, transmitting and receiving signals the improvement comprising:

a input connection for receiving a plurality of signals;

a signal processing network for processing said signals and providing two sets of in-phase and quadrature-phase processed and filtered baseband signals for quadrature modulation, wherein said sets of signals comprise a processed in-phase and quadrature-phase cross-correlated Time Division Multiple Access (TDMA) baseband signal set and a in-phase and quadrature-phase Code Division Multiple Access (CDMA) signal set; and

a set of two amplifiers to amplify and couple the quadrature modulated amplified signals to two or more antennas for amplified signal transmission.

13. The system of claim 12 comprising a processor for receiving and processing said plurality of signals into Orthogonal Frequency Division Multiplexed (OFDM) signals and into in-phase and quadrature-phase cross-correlated Code Division Multiple Access (CDMA) processed signals.

14. The system of claim 12 comprising a processor and transmit filter for processing and filtering processed TDMA signal for providing a Gaussian filtered in-phase and quadrature-phase baseband signal, a modulation device for processing, modulating and transmitting said Gaussian filtered signal and a demodulator for demodulation of a TDMA modulated signal, wherein said demodulator comprises a receive filter which is mis-matched to said transmit filter and said demodulator provides in-phase and quadrature-phase cross-correlated signals, and comprising a processor for receiving and processing said plurality of signals into Orthogonal Frequency Division Multiplexed (OFDM) signals and into in-phase and quadrature-phase cross-correlated Code Division Multiple Access (CDMA) processed signals.

15. The system of claim 12 wherein said set of two amplifiers comprises, amplifiers operated in a Non-Linearly Amplified (NLA) mode for amplification of processed modulated TDMA signals and of amplifiers operated in a linearly amplified mode for amplification of processed modulated CDMA signals.

16. The system of claim 12 wherein said Time Division Multiple Access (TDMA) baseband signal comprises Time Constrained Signal (TCS) processed waveform and Long Response (LR) filtered signals and said in-phase and quadrature-phase Code Division Multiple Access (CDMA) signal set comprises in-phase and quadrature-phase cross-correlated Time Constrained Signal (TCS) processed waveform and Long Response (LR) filtered Code Division Multiple Access (CDMA) processed signals.