Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 27 - Modulated-carrier systems
Patents for H04L 27 - Modulated-carrier systems (89,721)
11/2012
11/08/2012WO2012149834A1 Method and system for realizing wireless communication in complicated and narrow electromagnetic environment
11/08/2012WO2012149758A1 Signal processing method and device
11/08/2012WO2012149731A1 Method, device and system for synchronizing uplink symbols of multi-user access
11/08/2012WO2012124917A3 Method for receiving downlink signal and method for transmitting same, and device for receiving same and device for transmitting same
11/08/2012WO2012118543A3 Method and apparatus for complex in-phase quadrature polyphase nonlinear equalization
11/08/2012WO2012116406A3 Improvements in optical ofdm transmission
11/08/2012US20120281791 Frequency correction circuit, radio receiving apparatus, and frequency correction method
11/08/2012US20120281790 Parallel decoder for multiple wireless standards
11/08/2012US20120281789 Characterizing channel response using data tone decision feedback
11/08/2012US20120281788 Scalable Architecture for Satellite Channel Switch
11/08/2012US20120281783 Method of transforming pre-coded signals for multiple-in-multiple-out wireless communication
11/08/2012US20120281782 Communication system, communication apparatus, and communication integrated circuit
11/08/2012US20120281781 Method and System for Transmitting Data Using Collaborative Multiple Input Multiple Output Beamforming
11/08/2012US20120281776 Precoding for Time or Frequency Correlated MIMO Channels
11/08/2012US20120281775 Method and arrangement in a cellular communications system
11/08/2012US20120281774 Method for transmitting control information and apparatus for the same
11/08/2012US20120281773 Method and System for Best-M CQI Feedback Together with PMI Feedback
11/08/2012US20120281772 Digital output power measurement in radio communication systems
11/08/2012US20120281747 Equalizer tap determination
11/08/2012US20120281746 Device and method for identification and cancellation of crosstalk
11/08/2012US20120281740 Transmitting apparatus, receiving apparatus and communication system
11/08/2012US20120281738 Method and Apparatus for Vectored Data Transmission
11/08/2012CA2834953A1 Methods of pdcch capacity enhancement in lte systems based on a tp-specific reference signal
11/08/2012CA2834112A1 Method and device for modulating the amplitude of an electromagnetic signal transmitted by a wireless transceiver
11/08/2012CA2834080A1 Methods and systems of wireless communication with remote radio heads
11/07/2012EP2521272A1 Reduced-complexity antenna system using multiplexed receive chain processing
11/07/2012EP2520057A1 Method and apparatus for channel estimation
11/07/2012EP2520056A1 Method of and node b and user equipment for power control in case of segmentation
11/07/2012EP2520053A2 Ofdm transmitter and methods for reducing the effects of severe interference with symbol loading
11/07/2012CN202524419U Signal modulation system
11/07/2012CN202524398U Radio transmitting device, radio receiving device and radio communication system
11/07/2012CN202524385U OFDM-based hybrid power line carrier communication device
11/07/2012CN1989708B A transmit system, transmit method and transmitter
11/07/2012CN102771098A Method and arrangement in a telecommunications system
11/07/2012CN102771076A Distributing group size indications to mobile stations
11/07/2012CN102769807A Light source centralization orthogonal frequency division multiplexing passive optical network system and transmission method
11/07/2012CN102769601A Calibration system and method for amplitude-phase error of receiving channel of spaceborne DBF network
11/07/2012CN102769600A Method and device for zoom factor demodulation in orthogonal frequency division multiplexing (OFDM) system receiving machine
11/07/2012CN102769599A Novel signal processing method and device of orthogonal frequency division multiplexing system
11/07/2012CN102769598A Multicarrier receiver with antenna selection and maximum ratio combining
11/07/2012CN102769597A Multicarrier receiver with antenna selection and maximum ratio combining
11/07/2012CN102769596A Transmitting method, transmitting device, and receiving device and receiving method
11/07/2012CN102769595A Method for reducing PAPR (Peak To Average Power Ratio) under APSK (Amplitude Phase Shift Keying) constellation diagram
11/07/2012CN102769594A Transceiving communication device for reducing peak-to-average power ratio of optical orthogonal frequency division multiplexing (OFDM) signal
11/07/2012CN102769593A Method and device for generation of downlink reference signals of communication system
11/07/2012CN102769592A Method and device for generation of uplink reference signals of communication system
11/07/2012CN102769591A Self-adaptive method, self-adaptive system and self-adaptive device for audio communication modulation modes and electronic signature implement
11/07/2012CN102769590A Self-adaptive method, self-adaptive system and self-adaptive device for audio communication modulation modes and electronic signature implement
11/07/2012CN102769588A Method and device for equilibrium demodulation
11/07/2012CN102769523A Communication system, transmission device, and communication method
11/07/2012CN102769477A Method and system for realizing cell search and downlink synchronization
11/07/2012CN102096078B Multi-satellite navigation system compatible GNSS (Global Navigation Satellite System) signal receiving method and correlator thereof
11/07/2012CN101909030B Dual-function optical differential phase shift keying format demodulator
11/07/2012CN101895370B Method for detecting interference of OFDM communication system
11/07/2012CN101841361B Method and device for controlling transmission delay in cooperative multipoint transmission system
11/07/2012CN101808414B Paired carrier multiplexing multiple-user access method
11/07/2012CN101789926B United carrier and sampling frequency offset estimation method for multiband-orthogonal frequency division multiplexing (OFDM) ultra wide band system
11/07/2012CN101697637B Resource allocation method in OFDMA system
11/07/2012CN101689968B Transmitting device and transmitting method
11/07/2012CN101677307B Quadrature modulation system
11/07/2012CN101652970B Orthogonal cross polarization interference compensating device, demodulator, receiving station, and method of compensating cross polarization interference
11/07/2012CN101605115B Method for realizing passive oriented buoy digital de-multiplexer
11/07/2012CN101563901B Location of wideband OFDM transmitters with limited receiver bandwidth
11/07/2012CN101542999B Signal judgment apparatus and signal judgment method
11/07/2012CN101534283B Demodulating circuit, demodulating method, and receiving device
11/07/2012CN101534279B Direct sequence spread spectrum cascade connection frequency domain Orthogonal Frequency Division Multiplexing transmitting and receiving device, method and system
11/07/2012CN101496295B 发送机 Transmitter
11/07/2012CN101494630B Method and system for efficient utilization of cyclic prefix time slot
11/07/2012CN101491153B Base station and transmission method
11/07/2012CN101461204B Use of overhead in a wireless communication system
11/07/2012CN101447854B Data transmission/forwarding/processing method and device thereof
11/07/2012CN101438555B Multiband antenna array using electromagnetic bandgap structures
11/07/2012CN101431357B Data transmission method and apparatus
11/07/2012CN101404639B Method for preventing block synchronization error lock in single carrier frequency domain equalization system
11/07/2012CN101394392B Signal diversifying method for OFDM system
11/07/2012CN101388745B Parallel channel decoding apparatus applied in radio multimedia sensor network
11/07/2012CN101388687B Chip implementing fast high-efficient non-cooperative signal-noise ratio direct spreading signal detection method
11/07/2012CN101364963B Prefix channel data transmitting method and apparatus in frequency division multiplexing system
11/07/2012CN101346893B A method and apparatus for generating a permutation for forward link hopping in wireless communication system
11/07/2012CN101296212B Time frequency resource allocation method, device and base station for resource demand indication information
11/07/2012CN101286794B Frame synchronizing device applied in wireless sensor network
11/07/2012CN101268665B Method and apparatus in a base station for transmitting data on the DC tone of a multi-carrier communication system with a predetermined timing pattern
11/07/2012CN101056294B Super broad band communication system and method for using in super broad band communication
11/07/2012CN101015155B Receiving method and apparatus and communication system using the same
11/06/2012US8306439 Communication apparatus and signal reception method
11/06/2012US8306167 Method of synchronization for packet based, OFDM wireless systems with multiple receive chains
11/06/2012US8306162 Method and apparatus for complementary cumulative distribution driven level convergence for spectrum sensing
11/06/2012US8306161 Robust packet detection, symbol timing, channel length estimation and channel response estimation for wireless systems
11/06/2012US8306159 Method and system for decoding single antenna interference cancellation (SAIC) and redundancy processing adaptation using burst process
11/06/2012US8306158 Digital broadcasting transmission/reception devices capable of improving a receiving performance and signal processing method thereof
11/06/2012US8306155 Frame-based carrier frequency and phase recovery system and method
11/06/2012US8306154 Multi-frequency band receiver
11/06/2012US8306153 Method and system for tracking phase in a receiver for 8VSB
11/06/2012US8306151 Method and apparatus for mapping signals to subcarriers in MIMO wireless network
11/06/2012US8306148 Method to reduce peak to average power ratio in multi-carrier modulation receivers
11/06/2012US8306145 Overlay modulation of COFDM using phase and amplitude offset carriers
11/06/2012US8306136 Communications system utilizing orthogonal linear frequency modulated waveforms
11/06/2012US8306135 Communication system, base station, terminal, and communication method
11/06/2012US8306133 Transmitter and method for configuring transmission frame
11/06/2012US8306132 Detecting apparatus, calculating apparatus, measurement apparatus, detecting method, calculating method, transmission system, program, and recording medium
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