Patents for H04L 27 - Modulated-carrier systems (89,721)
04/2008
04/10/2008US20080084941 Techniques to efficiently transmit control messages to idle and sleep mode users in ofdma based wireless networks
04/10/2008US20080084939 Sample Buffer Size Reduction for Synchronized DMT-VDSL With Shared FFT Compute Units
04/10/2008US20080084938 Intersymbol interference mitigation
04/10/2008US20080084922 Multiprotocol multiplex wireless communication apparatus and methods
04/10/2008US20080084917 Method for interference control by an ultra-wideband wireless communication system in a multi-user environment and a receiver for performing the same
04/10/2008DE102007045090A1 Modulatoranordnung und Verfahren zur Signalmodulation Modulator arrangement and method for signal modulation
04/10/2008DE102007044627A1 Frequenzsynthesizer und Verfahren Frequency synthesizer and method
04/10/2008DE102006057602B3 Wireless data transmission method for use in radio frequency identification system, involves assigning time durations to symbol values and selecting data transmission protocol type by describing configuration register in passive transponder
04/10/2008DE102006030915B4 Optischer Empfänger für den Empfang eines Signales mit M-wertiger sternförmiger Quadratur-Amplitudenmodulation mit differenzieller Phasenkodierung und dessen Verwendung An optical receiver for the reception of a signal with m-valent stellate quadrature amplitude modulation with differential phase coding and the use thereof
04/10/2008CA2787754A1 Method and apparatus for processing primary and secondary synchronization signals for wireless communication
04/10/2008CA2665679A1 Scrambled cazac sequences for sc-fdma
04/10/2008CA2665218A1 Method and apparatus for processing primary and secondary synchronization signals for wireless communication
04/10/2008CA2663625A1 Synchronization transmissions in a wireless communication system
04/09/2008EP1909448A2 Apparatus for Transmitting and Receiving Data to Provide High-Speed Data Communication and Method Thereof
04/09/2008EP1909447A1 Peak-to-average power reduction technique
04/09/2008EP1909446A2 Mobile communication system and its signal transfer method
04/09/2008EP1909445A2 Mismatch detection in a PSK receiver
04/09/2008EP1909405A1 Multi-carrier transmission system
04/09/2008EP1909397A1 Demodulation of AM and FM using the Teager-Kaiser operator
04/09/2008EP1908244A1 Bit-operated rearrangement diversity for aico mapping
04/09/2008EP1908243A1 Co-channel interference mitigation for ofdm
04/09/2008EP1908242A2 Method and apparatus for transmitting pilot symbols in wireless communication system
04/09/2008EP1908241A2 Method for transmitting/receiving signal having spread training symbol in mobile communication system
04/09/2008EP1908240A2 Techniques to transmit data rate control signals for multi-carrier wireless systems
04/09/2008EP1908238A2 A method of transmitting and receiving data in a multi-carrier system
04/09/2008EP1908237A1 Distance-dependent spectra with uniform sampling spectrometry
04/09/2008EP1908236A2 Composite crest factor reduction
04/09/2008EP1908164A1 A method for modulating phase or frequency in a communication system using clock division
04/09/2008EP1692779A4 Direct-sequence cdma method and device
04/09/2008EP1293058A4 System and method for peak power reduction in multiple carrier communications systems
04/09/2008EP1264410B1 Device for linearising a high-frequency amplifier
04/09/2008CN201045756Y Transmitter and receiver for implementing space-time processing using asymmetrical modulation and encoding strategy
04/09/2008CN101160899A Increasing channel capacity without needing to reduce signal to noise margin due to inter-symbol interference (isi) by using three states +1, -1 and no
04/09/2008CN101160898A Timing synchronization and channel estimation at a transition between local and wide area waveforms using a designated tdm pilot
04/09/2008CN101160897A Frame synchronization in OFDM system
04/09/2008CN101160896A Method, apparatus, and system for transmitting and receiving data in a digital broadcasting system using a single frequency network
04/09/2008CN101160895A Trend influenced symbol time tracking for an OFDM communication system
04/09/2008CN101160894A Efficient method to compute one shot frequency estimate
04/09/2008CN101160893A Symbol time tracking for an OFDM communication system
04/09/2008CN101160892A Efficient employment of digital upsampling using ifft in OFDM systems for simpler analog filtering
04/09/2008CN101160891A Method and arrangement for recovering a binary dc-free code from a frequency modulated signal
04/09/2008CN101160890A Wireless device using same carrier wave for transmission and reception
04/09/2008CN101160889A Method of determining the location of the fft window and the delay spread for the platinum broadcast channel estimator
04/09/2008CN101160749A Systems and methods for beamforming in multi-input multi-output communication systems
04/09/2008CN101160748A Transmission method and transmission system
04/09/2008CN101159728A Robust transmission mode
04/09/2008CN101159727A IQ data transmission apparatus and method
04/09/2008CN101159726A Apparatus and method for quantization in digital communication system
04/09/2008CN101159643A Wireless transmitter, wireless receiver, wireless communication system, and wireless signal control method
04/09/2008CN101159488A Physical broadcasting channel transmitting method of TDD system
04/09/2008CN101159470A Method of mapping downlink control signaling indication channel to physical resource
04/09/2008CN101159469A Method and system for channel estimation of transmission channels by means of complementary sequences
04/09/2008CN101159467A Receiving method of deleting parallel subchannel transmitting interference
04/09/2008CN101159024A Semiconductor integrated circuit device and receiving device
04/09/2008CN100380957C Orthogonal frequency division multiplexing transmitter with modified pseudo-random noise sequence and inserted code element
04/09/2008CN100380899C Wireless receiving device shared by peripheral equipment of computer
04/09/2008CN100380856C A simplified decoder for a bit interleaved COFDM-MIMO system
04/09/2008CN100380833C Generator and generating method for superwide band pulse sequence, data communication apparatus and method
04/09/2008CN100380832C Variable-length correlator for spread-spectrum communications
04/09/2008CN100380822C Uwb transceiving apparatus and method for dynamically reducing interference
04/09/2008CN100380821C Downward compatible AM broadcast digitalized transmission method
04/09/2008CN100380816C Soft demodulation method and apparatus
04/09/2008CN100380808C Interference estimation and scaling for efficient metric storage and interference immunity
04/09/2008CN100380805C FM signal receriver and wireless communication device using the receiver
04/08/2008USRE40231 High data spread spectrum transceiver and associated methods
04/08/2008US7356324 Mobile radio receiver device
04/08/2008US7356110 Gain control method for a receiver of signals transmitted in bursts and receiver exploiting it
04/08/2008US7356103 Signal processing circuit and quadrature demodulation apparatus and method of estimating error thereof
04/08/2008US7356102 Gain compensation over temperature and frequency variations in wireless transceivers
04/08/2008US7356101 Apparatus and a method for calculation of a correlation value corresponding to a frequency error, and a recording medium with a recorded correlation value calculation program
04/08/2008US7356100 Estimating channel impulse response and equalizer coefficients in UWB communication systems
04/08/2008US7356099 Method for processing protocol data units in a high-speed downlink packet access communication system
04/08/2008US7356098 Method, communication system and communication unit for synchronisation for multi-rate communication
04/08/2008US7356096 Multiple hypothesis channel estimation and prediction for OFDM systems
04/08/2008US7356094 Digital broadcast receiving apparatus
04/08/2008US7356093 Enhanced wireless communication system and method thereof
04/08/2008US7356092 Wireless communication system and communication semiconductor integrated circuit device
04/08/2008US7356091 Apparatus, methods and articles of manufacture for signal propagation using unwrapped phase
04/08/2008US7356090 Transmission/reception apparatus for a wireless communication system with three transmission antennas
04/08/2008US7356089 Phase offset spatial multiplexing
04/08/2008US7356087 Bit mapping for variable-size higher-order digital modulations
04/08/2008US7356069 Spread spectrum demodulation using a subsampling communication receiver architecture
04/08/2008US7356017 Data loading method, transmitter, and base station
04/08/2008US7355993 Method and apparatus for forward link gain control in a power controlled repeater
04/08/2008US7355964 Systems for contention-based bandwidth requests in orthogonal frequency division multiplexing systems
04/08/2008US7355963 Tone allocation in multipoint-to-point communication using orthgonal frequency division multiplexing
04/08/2008US7355962 Multi-carrier communications with group-based subcarrier allocation
04/08/2008US7355961 Method and arrangement for digital signal transmission using layered space-time codes
04/08/2008US7355960 Channel estimation apparatus and method for adaptive channel allocation in an orthogonal frequency division multiple access system
04/08/2008US7355959 Interference suppression for OFDM-based UWB communication
04/08/2008US7355958 Blind OFDM channel estimation and identification using receiver diversity
04/08/2008CA2311349C Hierarchical transmission digital demodulator
04/08/2008CA2300449C Apparatus and method for generating transmitter antenna weights
04/03/2008WO2008039952A1 Methods and apparatus for configuring a pilot symbol in a wireless communication system
04/03/2008WO2008039951A1 Methods and apparatus for transmitting a frame structure in a wireless communication system
04/03/2008WO2008039183A1 Systems and methods for controlling a dc motor
04/03/2008WO2008039142A1 Contention based random access method with autonomous carrier selection
04/03/2008WO2008039125A1 Method and system for reducing adjacent channel interference using time division duplex (tdd)
04/03/2008WO2008039097A1 Channel quality assessment method in ofdm(a) communications and a corresponding system
04/03/2008WO2008039096A1 Interfering base stations recognition method and scheme for 802.16e systems