Patents for H04L 27 - Modulated-carrier systems (89,721)
09/2011
09/15/2011US20110222627 Method and apparatus for codebook exchange in a multiple access wireless communication system
09/15/2011US20110222626 Retransmission apparatus and method
09/15/2011US20110222625 Method and apparatus for sharing channel state information (csi) in a multiple-user multiple-input multiple-output (mu-mimo) environment
09/15/2011US20110222624 Methods and Apparatuses for Multiple Access in a Wireless Communication Network using DCT-OFDM
09/15/2011US20110222623 Communication Interface With Configurable Encoding Based on Channel Termination
09/15/2011US20110222617 Method for performing wireless switching
09/15/2011US20110222616 MIMO Transmission with Rank Adaptation for Multi-Gigabit 60 GHz Wireless
09/15/2011US20110222615 Methods and apparatus for reducing uplink multi-base station interference
09/15/2011US20110222614 Power efficient communications
09/15/2011US20110222613 Power efficient communications
09/15/2011US20110222612 Method for determining signal phase rotation of sub-channels within a transmission bandwidth
09/15/2011US20110222594 Methods and Circuits for Asymmetric Distribution of Channel Equalization Between Devices
09/15/2011US20110222593 Channel equalizer and method of processing broadcast signal in receiving system
09/15/2011US20110222590 System and method for pilot tone assisted selected mapping
09/15/2011US20110222495 Multi-Carrier Communications With Adaptive Cluster Configuration and Switching
09/15/2011US20110222455 Method and apparatus for enhancing high data rate uplink operations
09/15/2011US20110222420 Multi-Carrier Communications With Adaptive Cluster Configuration and Switching
09/15/2011DE102005007349B4 Verfahren und Vorrichtung zur Frequenzkorrektur in Wireless-Local-Area-Network-Systemen Method and apparatus for frequency correction in wireless local area network systems
09/15/2011CA2793034A1 Frequency-dependent iq imbalance estimation
09/14/2011EP2365725A2 Cellular wireless LAN with frequency division multiplex in TV white space
09/14/2011EP2365707A1 Method for transferring signalling information, transmission station and mobile station
09/14/2011EP2365671A2 Communication System utilizing a hierarchically Modulated Signal and Method Thereof
09/14/2011EP2365656A1 Virtual MIMO communication system
09/14/2011EP2364533A1 Method and apparatus for transmitting and receiving fec frame headers with variable header modulation
09/14/2011EP2127156B1 Method for generating downlink frame, and method for searching cell
09/14/2011EP2122864B1 Method for generating downlink frame, and method for searching cell
09/14/2011EP1721486B1 Cellular radiotelephone signal permitting synchronisation of a supplementary channel by means of a principal channel and corresponding method, terminal and base station
09/14/2011EP1526668B1 Multi-carrier transmitting apparatus
09/14/2011CN201976135U 一种精确估计ics直放站信号时延的装置 An accurate estimate ics repeater signal delay means
09/14/2011CN1993957B Chanel management using preamble containing frequencyuse information
09/14/2011CN1954496B Wireless communication method and apparatus for performing post-detection constellation correction
09/14/2011CN1855903B Semiconductor integrated circuit for communication and portable communication terminal
09/14/2011CN1833365B Apparatus and method for transmitter phase shift compensation
09/14/2011CN1739272B A fully parallel multi-channel demodulator
09/14/2011CN102187634A Method and apparatus for generating a preamble for use in cable transmission systems
09/14/2011CN102187632A Method and apparatus for supporting multiple reference signals in ofdma communication systems
09/14/2011CN102187631A Multiple-frame offset between neighbor cells to enhance the GERAN signaling performance when power control for signaling is in use
09/14/2011CN102187607A Wireless communication base station device and division number determination method
09/14/2011CN102186213A Uplink wireless resource management method based on isomeric relay wireless network framework
09/14/2011CN102186197A Method and device for detecting modulation type of EDGE communication system
09/14/2011CN102185824A Carrier phase correction method applied to high-order quadrature amplitude modulation (QAM)
09/14/2011CN102185823A Sub-carrier remaining method for reducing peak-to-average power ratio and bit error rate in combined way
09/14/2011CN102185822A OFDM/OQAM (Orthogonal Frequency Division Multiplexing/Offset Quadrature Amplitude Modulation) system and time frequency synchronization method thereof
09/14/2011CN102185821A Cognitive-radio-based anti-interference multi-carrier broadband communication system
09/14/2011CN102185820A Unscented-Kalman-transformation-based orthogonal frequency division multiplexing (OFDM) frequency offset estimation method
09/14/2011CN102185819A OFDM (Orthogonal Frequency Division Multiplexing) time synchronization algorithm based on conjugate symmetric sequence
09/14/2011CN102185818A Method for capturing and tracking spectrum spreading codes in broadcast positioning system
09/14/2011CN102185817A Method and device for transmitting information from reader-writer to label
09/14/2011CN102185816A Noncoherent differential phase shift keying (DPSK) communication signal chaotic oscillator detector and construction method
09/14/2011CN102185815A Code position and phase position keying modulation communication method
09/14/2011CN102185814A Method and device for automatically compensating bias voltage of QPSK (quadri phase shift keying) lithium niobate modulator
09/14/2011CN102185813A Method and system for realizing wireless communication in complicated and narrow electromagnetic environment
09/14/2011CN102185811A Carrier frequency estimation method
09/14/2011CN102185810A Process for obtaining notches in the transmission of signals over the electricity network
09/14/2011CN102185806A Fully blind channel estimation method and system for OFDM (orthogonal frequency division multiplexing) arbitrary constellation diagram
09/14/2011CN102185688A Multi-symbol detecting and symbol synchronizing method based on CPM (critical path method) modulation
09/14/2011CN102185675A Modulation mapping method for bit-interleaved coded modulation (BICM)-identification (ID) system based on low density parity check code (LDPC) coding
09/14/2011CN102185674A Receiver for wireless communication network with extended range
09/14/2011CN102183764A Intermediate frequency digital processing method of S-mode interrogation signal
09/14/2011CN101605120B Method and device for decoding iterated internal code and evaluating channel for orthogonal frequency division multiplexing system
09/14/2011CN101605009B Carrier mode detecting system for digital ground multimedia broadcast
09/14/2011CN101527602B Optical fiber transceiver module and plastic optical fiber communication system
09/14/2011CN101442381B Method for transmitting and receiving business, relevant apparatus and system
09/14/2011CN101426283B Data transmission method for time division duplexing system
09/14/2011CN101369881B Multi-carrier digital frequency-selection system and its signal processing method
09/14/2011CN101310500B Rake receiver with variable bandwidth in order to minimize guard bands and method for the receiver
09/14/2011CN101286758B Method and apparatus to determine delay of uplink channel
09/14/2011CN101277286B Estimation of integer carrier frequency offset of digital radio standard receiver in the world
09/14/2011CN101193085B Method, system and device for realizing multimedia broadcast service
09/14/2011CN101184079B Frequency domain carrier channel estimation method and device
09/14/2011CN101150766B Transmitting device using multi-carrier transmission system and receiving device
09/14/2011CN101127745B A chancel estimation method and device
09/14/2011CN101056133B Multi-antenna transmission diversity method and device of orthogonal frequency division multiplexing system
09/14/2011CN101047682B Transmission power spectrum density shaping method of digital customer vine transciever
09/14/2011CN101039136B Space-frequency coding-based multi-antenna transmitter diversity method and system thereof
09/13/2011US8019369 Method and apparatus for transient frequency distortion compensation
09/13/2011US8019027 Digital broadcasting receiver
09/13/2011US8019024 Method of approximating log-likelihood ratios in QAM digital transmissions and relative QAM soft-output de-mapper
09/13/2011US8019023 Low-complexity scalable architecture for concatenation-assisted symbol-level combining
09/13/2011US8019022 Jitter-tolerance-enhanced CDR using a GDCO-based phase detector
09/13/2011US8019021 Carrier to interference and noise ratio (CINR) estimating method and device using preamble in orthogonal frequency division multiplexing (OFDM)
09/13/2011US8019020 Binary decoding for correlated input information
09/13/2011US8019017 Method for receiving control information in orthogonal frequency division multiplexing system of mobile communication system
09/13/2011US8019016 System and method of transmit beam selection
09/13/2011US8019010 OFDM transmitter and method for multi-user MIMO transmissions
09/13/2011US8019009 Equalizer circuit
09/13/2011US8019008 Base station apparatus, communication terminal apparatus, communication system, and communication method
09/13/2011US8019005 Data communication system, data decoding apparatus and method therefor
09/13/2011US8018978 Method of processing traffic information and digital broadcast system
09/13/2011US8018977 Method of processing traffic information and digital broadcast system
09/13/2011US8018976 Method of processing traffic information and digital broadcast system
09/13/2011US8018975 Method and system for performing synchronization in OFDM systems
09/13/2011US8018914 Radio communication device, demodulation method, and frequency deflection correction circuit
09/13/2011US8018907 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
09/13/2011US8018832 Packet generation systems and methods
09/13/2011US8018295 Modulation device and pulse wave generation device
09/13/2011CA2551756C Multiple differential demodulator using weighting value
09/09/2011WO2011109269A1 Systems and associated methods to reduce signal field symbol peak-to-average power ratio (papr)
09/09/2011WO2011106819A1 A method for channel equalization using a basis expansion model
09/09/2011WO2011106818A1 A method for estimating basis expansion model coefficients of an ofdm transmission channel