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)
06/2013
06/05/2013EP2600535A1 Method, apparatus and system for configuring demodulation reference signal
06/05/2013EP2599354A1 Power loading in mu-mimo
06/05/2013EP2599274A1 Method for predistortion in a communication system
06/05/2013EP2599273A1 Method and apparatus for multi-stream received signal processing in a communication receiver
06/05/2013EP2599245A1 Technique and test signal for determining signal path properties
06/05/2013CN202979013U IQ quadrature modulation module
06/05/2013CN202979012U Vehicle-mounted wireless transmission system, vehicle-mounted wireless emitter and vehicle-mounted wireless receiver
06/05/2013CN202979011U Group multiuser underwater acoustic communication Modem
06/05/2013CN202979010U Multifunctional multi-modulation signal source
06/05/2013CN202979009U Channel self-adaptive modem based on transmission service qualities
06/05/2013CN1879304B Phase-locked loop bandwidth calibration circuit and method thereof
06/05/2013CN103141067A A method, apparatus and computer program product for identifying frequency bands, and a method, apparatus and computer program product for evaluating performance
06/05/2013CN103141065A Method and apparatus of deactivating carriers in wireless communications
06/05/2013CN103141042A Randomization of block spread signals
06/05/2013CN103139135A Modulation method based on digital power carrier wave communication
06/05/2013CN103139134A IEEE802.11ac receiving method utilizing iterative demodulation and device thereof
06/05/2013CN103139133A Adaptive coding and modulation method applied to multiple-input multiple-output-orthogonal frequency division multiplexing (MIMO-OFDM) system
06/05/2013CN103139132A Association synchronization method based on cyclic prefix and pilot frequency sequences
06/05/2013CN103139131A Method and apparatus for pilot signal transmission
06/05/2013CN103139130A Method of handling shortened resource block for MTC and device thereof
06/05/2013CN103139129A Compressing/ decompressing method of multi-carrier modulation signals and compressor/ decompressor
06/05/2013CN103139128A Method of orthogonal frequency division multiplexing (OFDM) system phase compensation
06/05/2013CN103139127A Method for judging transmission mode of 3rd generation partnership project long term evolution / long term evolution (3GPP LTE / LTE) Advanced system by using synchronization sequence
06/05/2013CN103139126A Universal method for achieving transmit-receive synchronization of wireless communication testing platform
06/05/2013CN103139125A Sending and receiving method of downlink data, base station and user terminal
06/05/2013CN103139124A Information processing method, base station and local thermodynamic equilibrium (LTE) system
06/05/2013CN103139123A MPPSK demodulation method based on location information
06/05/2013CN103139122A Transmission and reception apparatus and transmission and reception system
06/05/2013CN103139121A Method and apparatus for detecting signal envelope
06/05/2013CN103139112A Channel parameter estimation method
06/05/2013CN103139111A Method and device for low complexity signal detection in orthogonal frequency division multiplexing (OFDM) system
06/05/2013CN103139109A Frequency deviation precompensation method and device in multi-cell cooperative transmission in TDD (time division duplexing) mode
06/05/2013CN103139108A Three-dimensional minimum mean squared error (MMSE) channel estimation method
06/05/2013CN103138909A Up interference level computing method of worldwide interoperability for microwave access (WiMAX) system
06/05/2013CN103138907A Delivery of multicast and uni-cast services in an OFDMA system
06/05/2013CN103138870A Data transmission method and data transmission device
06/05/2013CN103138819A A base station apparatus, a terminal apparatus, a integrated circuit, and a transmission and reception method
06/05/2013CN103138812A Wireless communication terminal
06/05/2013CN102265576B Method for transmission of data over a communications channel
06/05/2013CN102223346B Multi-domain joint multiple access method based on weighted fractional Fourier transformation
06/05/2013CN102185816B Noncoherent differential phase shift keying (DPSK) communication signal chaotic oscillator detector and construction method
06/05/2013CN102118337B Method and device for regenerating phase modulation format signal
06/05/2013CN102045284B Frequency shift keying (FSK) demodulating device
06/05/2013CN102026277B Data sending method, data receiving method and user terminal
06/05/2013CN101986629B Method and device for estimating narrowband interference as well as receiving equipment thereof
06/05/2013CN101984613B Code rate estimation method for low-rate binary phase shift keying (BPSK) burst signal
06/05/2013CN101951276B Method for detecting and suppressing Gaussian fitting linear frequency-modulated jamming in direct sequence spread spectrum (DSSS) communication system
06/05/2013CN101938440B Detection method and device of random access signals of OFDM (Orthogonal Frequency Division Multiplexing) system
06/05/2013CN101924732B Multicarrier MIMO transmission
06/05/2013CN101924721B Method for determining downlink multi-access system transmission mode, transmitting end device and receiving end device
06/05/2013CN101911624B Modulation scheme switching type communication device and modulation scheme switching method
06/05/2013CN101902428B Method and device for timing synchronization
06/05/2013CN101902420B Continuous phase differential phase-shift keying modulation and demodulation method in signs
06/05/2013CN101883438B Random access of wireless mult-address communication system
06/05/2013CN101860497B Method for realizing equalization of FBMC system by utilizing improved sphere decoding algorithm
06/05/2013CN101848007B Apparatus and methods for digital adaptive equalizer in serial receiver
06/05/2013CN101827051B Method and equipment for restraining interference
06/05/2013CN101826899B Signal transmission method and device based on relay
06/05/2013CN101778070B Two-stage spread spectrum OFDM (Orthogonal Frequency Division Multiplexing) self-adapting code allocation method and system under zero-forcing algorithm
06/05/2013CN101741778B Information channel estimation method of data subcarrier
06/05/2013CN101729462B Method for comprehensively measuring and calculating carrier to interference plus noise ratio in orthogonal frequency division multiplexing
06/05/2013CN101689952B Apparatus and method for removing common phase error in a DVB-T/H receiver
06/05/2013CN101682497B Hierarchical modulation for communication channels in single-carrier frequency division multiple access
06/05/2013CN101627594B Method for symbol processing in a bi-directional communication by time reversal and communication unit for executing the method
06/05/2013CN101626354B Noise estimation method and noise estimation device of multipath channel
06/05/2013CN101610231B Method and device for realizing frequency hopping
06/05/2013CN101540746B Method and device for quantizing time and frequency channel and corresponding mobile communication terminal and corresponding mobile communication system
06/05/2013CN101502018B Generation and detection of synchronization signals
06/05/2013CN101494627B Channel estimation method for reducing pilot number by using compression perception in wideband mobile communication
06/05/2013CN101483463B Data sending method and apparatus based on multi-diversity
06/05/2013CN101471685B Narrowband CDMA reverse link and modulation spread-spectrum circuit and de-spread demodulation circuit thereof
06/05/2013CN101416464B Ifft processing method and system
06/05/2013CN101345552B Power optimization method, system and device based on digital subscriber line
06/05/2013CN101313548B Method and device for built-in pilot transmissions in multicarrier system
06/05/2013CN101296012B Method for pilot frequency insertion and diversity emission of space-frequency encoding cascade cycle detention diversity
06/05/2013CN101282150B Transmission method capable of improving OFDMA system prefix sequence
06/05/2013CN101243664B In-place transformations with applications to encoding and decoding various classes of codes
06/05/2013CN101242668B A method for indicating corresponding uplink sub-frame of uplink resource indication signaling
06/05/2013CN101167321B Pilot signal transmission for an orthogonal frequency division wireless communication system
06/05/2013CN101159488B Physical broadcasting channel transmitting method of TDD system
06/04/2013US8457261 Automatic gain control techniques for detecting RF saturation
06/04/2013US8457260 System and method for acquisition in wireless communication systems
06/04/2013US8457259 Method and system for partitioning gain for wireless radio frequency integrated circuits
06/04/2013US8457258 Optimal training sequence and channel estimation method and system for superimposed training based OFDM systems
06/04/2013US8457255 Method and system for applying Viterbi type PSK demodulation for optimum correlation of GPS signals
06/04/2013US8457254 Equalization and residual self-interference suppression using serial localization with indecision
06/04/2013US8457252 Method and apparatus for digital signal reception
06/04/2013US8457251 System and method for spreading and de-spreading a signal at an antenna
06/04/2013US8457250 OFDM pre-equalizing
06/04/2013US8457248 Apparatus and method for mapping symbols to resources in a mobile communication system
06/04/2013US8457247 In-band generation of low-frequency periodic signaling
06/04/2013US8457246 Apparatus and method for envelope tracking power amplifier in wireless communication system
06/04/2013US8457245 Method of transmitting precoding information in multiple antenna system
06/04/2013US8457244 Antenna and radio arrangement
06/04/2013US8457243 Transmitter comprising a pulse width pulse position modulator and method thereof
06/04/2013US8457242 Transmitter device and HDMI sender/receiver device including the same
06/04/2013US8457238 Method of soft decision decoding and apparatus for soft decision decoding
06/04/2013US8457234 Radio communication method and apparatus selectively employing a plurality of antennas
06/04/2013US8457232 Detecting the number of transmit antennas in wireless communication systems
06/04/2013US8457231 Quasi-orthogonal space-time block encoder, decoder and methods for space-time encoding and decoding orthogonal frequency division multiplexed signals in a multiple-input multiple-output system
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