Patents for H04L 27 - Modulated-carrier systems (89,721)
06/2012
06/13/2012CN1719739B Devices for reducing the dynamic range of signals in transmitters of communication systems
06/13/2012CN102497351A Constant-envelop light OFDM-MSK (orthogonal frequency division multiplexing-minimum shift keying) modulation method
06/13/2012CN102497350A OFDM (Orthogonal Frequency Division Multiplexing) peak-to-average power ratio lowering method based on constellation linear expansion
06/13/2012CN102497349A Multi-strategy-combined OFDM (Orthogonal Frequency Division Multiplexing) frame synchronization method
06/13/2012CN102497348A Method used for improving time domain pulse interference resistance of filter bank based multicarrier system (FBMC)
06/13/2012CN102497347A Time delay adjusting method and system for wireless communication system
06/13/2012CN102497346A COFDM (coded orthogonal frequency division multiplexing)-based baseband transmitter of high-definition video wireless transmission system
06/13/2012CN102497345A Method, device and system for reducing peak-to-average ratio of signals of orthogonal frequency division multiplexing
06/13/2012CN102497344A Radio communication base station device and radio communication method
06/13/2012CN102497343A Combined modulation recognition method based on clustering and support vector machine
06/13/2012CN102497339A Frequency deviation estimating method in QAM (quadrature amplitude modulation) communication system
06/13/2012CN102497337A Compressed sensing wireless communication channel estimation method based on sparsity self-adapting
06/13/2012CN102497260A Method for allocating resources in relay system of single carrier frequency division multiple access
06/13/2012CN102497259A Subcarrier allocation method and device applied to power line communication
06/13/2012CN102497258A Transport block set transmission using hybrid automatic repeat request
06/13/2012CN102497257A Basisstation zur ubertragung von transportblockstzen unter verwendung hybrider automatischer wiederholungsanforderung
06/13/2012CN102497219A System and method for power line communications
06/13/2012CN101937423B Streamline FFT/IFFT processing system
06/13/2012CN101601221B Apparatus, methods for providing limited use of zadoff-chu sequences in pilot or preamble signals
06/13/2012CN101577692B Channel estimating method of orthogonal frequency division multiplexing system and device thereof
06/13/2012CN101478523B Adaptive pre-distorter in OFDM system and pre-distortion method
06/13/2012CN101431392B Setting method and modulating method for ST-MTCM gridding chart
06/13/2012CN101420261B Synchronous information sending method of OFDM system and cell searching method
06/13/2012CN101414989B Timing tracking method based on block transmission for single carrier system
06/13/2012CN101340258B Step determining method of transmitting signal to soft-decision Viterbi decoder
06/13/2012CN101073234B Transmitter and frequency hopping method of the same
06/13/2012CN101010883B Interference canceller with fast phase adaptation and method therefor
06/12/2012US8200149 Combining transponder bandwidths for source and forward error correction encoding efficiency
06/12/2012US8199861 Channel estimation in MIMO OFDM communication systems
06/12/2012US8199860 Detection circuit and detection method of carrier offset
06/12/2012US8199855 Antenna diversity
06/12/2012US8199854 Modulating apparatus, mobile communication system, modulating method, and communication method
06/12/2012US8199853 Method for feedback and method for configuring a codebook in multi-antenna system
06/12/2012US8199852 DTV transmitting system and receiving system and method of processing broadcast signal
06/12/2012US8199850 Transmitter for communication systems employing an enhanced modulation scheme
06/12/2012US8199847 Method and apparatus for providing higher order modulation that is backwards compatible with quaternary phase shift keying(QPSK) or offset quaternary phase shift keying (OQPSK)
06/12/2012US8199845 Up-link SDMA receiver for WiMAX
06/12/2012US8199842 Time-domain transmit and receive processing with channel EIGEN-mode decomposition for MIMO systems
06/12/2012US8199838 Transmission apparatus and a reception apparatus in a multicarrier transmission system and a transmission method and a reception method using the multicarrier transmission system
06/12/2012US8199837 Systems/methods of sequential modulation of a single carrier frequency by a plurality of elements of a waveform
06/12/2012US8199836 Multi-resolution precoding codebook
06/12/2012US8199708 Allocation of uplink reference signals in a mobile communication system
06/12/2012US8199634 Signaling method in an OFDM multiple access system
06/12/2012US8199632 Systems and method for orthogonal frequency divisional multiplexing
06/12/2012US8198999 Power line communication system and method of operating the same
06/12/2012US8198949 Digital modulator
06/12/2012US8198936 Semiconductor device
06/07/2012WO2012075332A1 Non-linear adaptive scheme for cancellation of transmit out of band emissions
06/07/2012WO2012074695A1 Frequency and timing offset estimation algorithm for dtv (dvb-t2/dvb-t/isdb-t) receivers
06/07/2012WO2012074449A1 Method and arrangement for mitigating inter -cell interference on transmission of uplink control information
06/07/2012WO2012074335A2 Method and device for transmitting ack/nack in tdd-based wireless communication system
06/07/2012WO2012074273A2 Method for allocating resources for uplink control information in a wireless communication system and terminal for same
06/07/2012WO2012074192A2 Method for avoiding inter-cell interference in wireless access system
06/07/2012WO2012074041A1 Communication device and communication method
06/07/2012WO2012071832A1 Channel estimation method and system
06/07/2012WO2012071705A1 Method and user equipment for triggering power headroom report
06/07/2012WO2012050372A3 Method of transmitting control information and device for same
06/07/2012WO2012050330A3 Method and device for transmitting uplink control information in wireless access system
06/07/2012WO2012050329A3 Method and device for transmitting uplink control information when retransmitting uplink data in wireless access system
06/07/2012WO2012047051A3 Method and apparatus for generating control packet
06/07/2012WO2012046956A3 Method and apparatus for preventing inter-cell interference in a heterogeneous network system
06/07/2012WO2012042490A3 Method and device for cancelling doppler shift induced inter carrier interference in an ofdm communication system by using signal pre-distortion
06/07/2012WO2012021031A3 Methods and apparatus for uplink control transmit diversity
06/07/2012US20120141144 System and method for generating soft decision reliability information from hard decisions in an optical signal receiver
06/07/2012US20120141136 Method and arrangement for transferring data for the maintenance of a self-service terminal
06/07/2012US20120140862 Non-coherent secondary synchronization signal detecting method, device and corresponding computer program
06/07/2012US20120140859 Method and control unit for direct sampling of a plurality of radio bands
06/07/2012US20120140858 Fine symbol timing estimation
06/07/2012US20120140857 Method for synchronizing a receiver with a received ambiguous signal having a known number of at least two peaks
06/07/2012US20120140856 Receiving apparatus and receiving method
06/07/2012US20120140855 Receiving apparatus and data transmission apparatus
06/07/2012US20120140854 Radio communication device, radio communication method, and communication system
06/07/2012US20120140853 Differential signal output device and portable device
06/07/2012US20120140852 Wireless communication apparatus
06/07/2012US20120140851 Method of maintaining coherency of a precoding channel in a communication network and associated apparatus
06/07/2012US20120140850 Codebook Method for a Multiple Input Multiple Output Wireless System
06/07/2012US20120140847 Digital broadcast system and data processing method
06/07/2012US20120140846 Method for transmitting signals in a digital communication system and transmitter for a digital communication system
06/07/2012US20120140845 Method and apparatus for combining space-frequency block coding spatial multiplexing and beamforming in a mimo-ofdm system
06/07/2012US20120140844 Method for setting cyclic shift considering frequency offset
06/07/2012US20120140843 Method and apparatus for transmission within a multi-carrier communcation system
06/07/2012US20120140842 Signaling to protect advanced receiver performance in wireless local area networks (lans)
06/07/2012US20120140841 Broadcast controlling apparatus and method for changing transmission frequency in digital broadcasting
06/07/2012US20120140840 Data path utilization for low level pattern generation and checkiing
06/07/2012US20120140838 Method and apparatus for antenna diversity in multi-input multi-output communication systems
06/07/2012US20120140837 Method of searching code sequence in mobile communication system
06/07/2012US20120140836 Peak-to-average power ratio reduction in a multicarrier signal
06/07/2012US20120140835 Channel estimation in an ofdm transmission system
06/07/2012US20120140834 Method of generating adaptive codebook and multiple input multiple output communication system using the adaptive codebook
06/07/2012US20120140812 Receiver Circuit Architectures
06/07/2012US20120140811 Reception circuit
06/07/2012US20120140800 Wireless communication apparatus and wireless communication method
06/07/2012US20120140759 Simulcasting mimo communication system
06/07/2012US20120140758 Signaling format for wireless communications
06/07/2012US20120140722 Error control method, medium access control (mac) frame designing method, and terminal registration method in wireless communication system, and recording medium
06/07/2012US20120140664 Random access for wireless multiple-access communication systems
06/07/2012US20120140613 Multiple transmit antenna interleaver design
06/07/2012CA2725034A1 Frequency reuse in wireless point-to-point communication systems
06/06/2012EP2461623A1 Method, apparatus and device for improving signal quality
06/06/2012EP2461532A2 Method for processing a received signal to which channel state information is applied in an orthogonal frequency-division multiplexing system