Patents for H04L 27 - Modulated-carrier systems (89,721)
04/2008
04/30/2008CN101170396A Pilot signal transmission method for enhanced multi-transmission antenna system
04/30/2008CN101170356A Carrier control method and system based on multi-carrier base station
04/30/2008CN101170355A Filter bandwidth identification method and filter based on multi-carrier base station system
04/30/2008CN101170346A Pilot signal transmission method and mobile communication system
04/30/2008CN101170340A Sub-channel distribution method for low-complexity, multi-user and multi-antenna OFDM system
04/30/2008CN100385886C Differential bit soft value exporting method in orthogonal spectrum expansion differential phase modulation
04/30/2008CN100385847C Scattered pilot pattern and channel estimation method for MIMO-OFDM systems
04/30/2008CN100385845C Hybrid ARQ method for packet data transmission
04/30/2008CN100385836C Method and apparatus for setting a guard interval in an OFDM communication
04/30/2008CN100385835C OFDM receiver
04/30/2008CN100385823C Multiple input and multipute output telecommunication system with speed-up ball decode
04/30/2008CN100385820C Receiver and adaptive equalizing method
04/30/2008CN100385798C Method for estimating transmission channel in telecommunication system
04/30/2008CN100385797C Peak suppressing method and data transmission device
04/29/2008US7366481 Apparatus for radio telecommunication system and method of building up output power
04/29/2008US7366272 Method and device for transmitting packet data in mobile communication system
04/29/2008US7366263 Radio communication terminal and radio signal receiving method
04/29/2008US7366262 Frequency estimation method of MB-OFDM UWB system using time frequency hopping strategy
04/29/2008US7366261 Separate FEC decoding and iterative diversity reception
04/29/2008US7366260 Efficient MLSE equalizer implementation
04/29/2008US7366259 Channel estimator
04/29/2008US7366258 Chip blanking and processing in SCDMA to mitigate impulse and burst noise and/or distortion
04/29/2008US7366257 Carrier recovery device of digital TV receiver
04/29/2008US7366256 Method and modem for phase synchronization and tracking
04/29/2008US7366255 Time domain estimation of IQ imbalance in a wireless OFDM direct conversion receiver
04/29/2008US7366254 Edge incremental redundancy support in a cellular wireless terminal
04/29/2008US7366253 Device and method for transmitting and receiving data by a transmit diversity scheme using multiple antennas in a mobile communication system
04/29/2008US7366251 Transmitter for transmitting a combined clock signal and a digital data signal modulated on a carrier wave
04/29/2008US7366245 Calibration in MIMO systems
04/29/2008US7366244 Method and system for antenna interference cancellation
04/29/2008US7366243 Methods and apparatus for transmitting non-contiguous spread spectrum signals for communications and navigation
04/29/2008US7366233 Assembly for measurement demodulation and modulation error detection of a digitally modulated receive signal
04/29/2008US7366229 Method for generating a preamble sequence group
04/29/2008US7366227 Chip-to-symbol receiver despreader architectures and methods for despreading spread spectrum signals
04/29/2008US7366200 Beacon signaling in a wireless system
04/29/2008US7366195 Apparatus and method for efficiently transmitting and receiving multicast data
04/29/2008US7366151 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
04/29/2008US7366090 Apparatus and method for generating a preamble sequence in an OFDM communication system
04/29/2008US7366089 Apparatus and method of multiple antenna receiver combining of high data rate wideband packetized wireless communication signals
04/29/2008US7366088 Method and orthogonal frequency division multiplexing (OFDM) receiver for reducing the influence of harmonic interference on OFDM transmission systems
04/29/2008US7366087 Delta-predicted frequency offset compensation apparatus and method thereof
04/29/2008CA2263669C Transmission of digital signals by orthogonal frequency division multiplexing
04/24/2008WO2008049136A1 Beacon coding in wireless communications systems
04/24/2008WO2008049076A2 Symbol synchronization using phase discontinuity for dvb-t systems in awgn channels
04/24/2008WO2008048630A2 Improved channel estimation system and method
04/24/2008WO2008048431A1 Wireless access point network system supported through existing transmission lines
04/24/2008WO2008048156A1 Method and arrangement for loop qualification in a digital subscriber line (dsl) system
04/24/2008WO2008048056A1 Codeword generation method and data transmission method using the same
04/24/2008WO2008047874A1 Signal generation device, method, and its program in radio transmission system
04/24/2008WO2008047684A1 Measuring apparatus, measuring method, program and testing apparatus
04/24/2008WO2008047642A1 Uwb transmission apparatus and uwb transmission method
04/24/2008WO2008047573A1 Radio data modulated signal generating apparatus and transmitting apparatus
04/24/2008WO2008047277A2 Determining symbol synchronization information for ofdm signals
04/24/2008WO2008047069A1 Data communications
04/24/2008WO2008030798A3 Method and apparatus for data symbol and control symbol multiplexing
04/24/2008WO2008026995A3 Method for spectrum- preserving par reduction
04/24/2008WO2008007317A3 A microwave circuit with improved quadrature balance.
04/24/2008WO2007146301A3 Approach for spectrum analysis in a receiver
04/24/2008WO2007138467A3 Iterative extended soft-rls algorithm for joint channel and frequency offset estimation for coded mimo-ofdm systems
04/24/2008WO2007031646A8 Spectrum characterization for communication equipment
04/24/2008WO2005122580A3 Upstream only linecard with front end multiplexer for cmts
04/24/2008US20080098287 Detection and mitigation of temporary impairments in a communications channel
04/24/2008US20080098056 Reducing memory usage in noncoherent signal processing
04/24/2008US20080095290 Method And Apparatus For Identifying The Modulation Format Of A Received Signal
04/24/2008US20080095280 Correlation value calculation method and correlator using the same
04/24/2008US20080095279 Method and Apparatus for Selecting a Subset of Modeled Impairment Correlation Terms for Use in Received Signal Processing
04/24/2008US20080095278 Apparatus and method for reducing complexity of matched filter
04/24/2008US20080095277 Transmission and detection of preamble signal in OFDM communication system
04/24/2008US20080095275 Channel estimation system and method
04/24/2008US20080095274 Statistical procedures for carrier frequency tracking
04/24/2008US20080095273 Fast Fourier Transformation (Fft) With Adaption Of The Sampling Rate In Digital Radio Mondiale (Drm) Receivers
04/24/2008US20080095272 Spread spectrum signal processing
04/24/2008US20080095271 Characterization of a frequency response for a frequency translation device
04/24/2008US20080095270 Transmission apparatus, reception apparatus and digital radio communication method
04/24/2008US20080095269 Method and System for Digital Tracking in Direct and Polar Modulation
04/24/2008US20080095268 Method and system for choice of a steering matrix (q) for sounding in antenna selection
04/24/2008US20080095267 Systems and Methods for Ofdm Transmission and Reception
04/24/2008US20080095266 Adaptive controller for linearization of transmitter with impairments
04/24/2008US20080095263 Method And Apparatus For Selection Mechanism Between OFDM-MIMO And LFDM-SIMO
04/24/2008US20080095262 Method for Transmitting a Digital Data Stream, Transmitter, Method for Receiving a Digital Data Stream and Receiver
04/24/2008US20080095261 Radiation powered battery-free energy-burst source for wireless weather stations and home-climate systems
04/24/2008US20080095258 Pre-coding method for mimo system and apparatus using the method
04/24/2008US20080095257 Signal Separating Device and Signal Separating Method
04/24/2008US20080095254 Random Access Channel Design With Hybrid CDM And FDM Multiplexing Of Access
04/24/2008US20080095253 Communication apparatus
04/24/2008US20080095252 Encoding uplink acknowledgments to downlink transmissions
04/24/2008US20080095251 Method for Selecting Switched Beam Using Pilot Signal and System Thereof
04/24/2008US20080095248 Enhanced Bit Mapping for Digital Interface of a Wireless Communication Equipment in Multi-Time Slot and Multi-Mode Operation
04/24/2008US20080095226 Apparatus for phase noise suppression for ofdm based wlans
04/24/2008US20080095223 Channel Sounding in Ofdma System
04/24/2008US20080095214 Multicarrier orthogonal spread-spectrum(MOSS) data communications
04/24/2008US20080095083 Multi-carrier frequency-division multiplexing (fdm) architecture for high speed digital service
04/24/2008US20080095039 Stfbc coding/decoding apparatus and method in an ofdm mobile communication system
04/24/2008DE102006049360A1 Verfahren zur Analyse eines digital modulierten Signals und Signalanalysevorrichtung A method of analysis of a digital modulated signal and signal analyzer
04/24/2008DE102005015835B4 Verfahren und Vorrichtung zur Trägerfrequenzsynchronisierung eines Restseitenbandmodulierten Signals Method and device for carrier-frequency synchronization of a vestigial sideband modulated signal
04/24/2008CA2663019A1 Beacon coding in wireless communications systems
04/23/2008EP1914950A1 Method and arrangement for automatic frequency correction
04/23/2008EP1914949A2 Method for analysing a digitally modulated signal and signal analysis device
04/23/2008EP1914948A1 Radio transmission device, and radio transmission method
04/23/2008EP1914918A1 Ofdm reception device and ofdm receiver using the same