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)
08/2007
08/15/2007EP1819121A1 System and Method for ASK OFDM Transmission and Reception
08/15/2007EP1819120A1 Channel estimation method and apparatus using linear interpolation scheme in orthogonal frequency division multiplexing system and receiver using the same
08/15/2007EP1819119A1 Method and apparatus for detecting offset in an orthogonal frequency division multiplexing system
08/15/2007EP1819118A2 Method and apparatus for allocating transmission resources and signaling the allocated transmission resources for frequency diversity
08/15/2007EP1819117A1 Method and system for randomized puncturing in mobile communication systems
08/15/2007EP1819116A1 Channel estimator and method for channel estimation
08/15/2007EP1819107A1 System and method for transmitting and receiving resource allocation information in a wireless communication system
08/15/2007EP1819078A1 Broadcast signal time measurement device, transmission device and relay device using the time measurement device, and delay time measurement device
08/15/2007EP1819069A2 Method and apparatus for transmitting/receiving broadcast channels in cellular communication systems supporting scalable bandwidth
08/15/2007EP1819041A1 Self-calibrating multi-port circuit and method
08/15/2007EP1817886A1 Method and apparatus for transmitting and receiving bit interleaved coded modulation signals
08/15/2007EP1817861A1 Method and transmitter structure reducing ambiguity by repetition rearrangement in the bit domain
08/15/2007EP1817857A2 Method and/or system for reduction of papr
08/15/2007EP1766967A4 Display apparatus and control method thereof
08/15/2007EP1664827B1 Modulation signals for a satellite navigation system
08/15/2007EP1623574A4 Integer cycle frequency hopping modulation for the radio frequency transmission of high speed data
08/15/2007EP1570597B1 A simplified decoder for a bit interleaved cofdm-mimo system
08/15/2007EP1275214B1 Decoding system and method for digital communications
08/15/2007EP1250784B1 Method for transmitting data to be transmitted using a subscriber modem
08/15/2007CN2935645Y Transmitter and receiver of mixing orthogonal frequency division multiple access system
08/15/2007CN1332561C Matched pulse shaping filter
08/15/2007CN1332259C Optical chirp return-to-zero code transmitter using Mach-Zehnder modulator
08/15/2007CN101019400A Incremental pilot insertion for channel and interference estimation
08/15/2007CN101019399A Relay for multi-carrier wireless communications system
08/15/2007CN101019398A Method and system for generating switching timing signal for separating transmitting and receiving signal in optical repeater of mobile telecommunication network using TDD and OFDM modulation
08/15/2007CN101019397A Frequency division multiplexing of multiple data streams in a wireless multi-carrier communication system
08/15/2007CN101019396A Detection of modulation type
08/15/2007CN101019395A Distortion compensating device
08/15/2007CN101019391A Channel tracking with scattered pilots using a kalman filter
08/15/2007CN101019390A Iterative channel and interference estimation with dedicated pilot tones for OFDM
08/15/2007CN101019333A Interference cancellation system
08/15/2007CN101019326A File download and streaming system
08/15/2007CN101019311A A method and apparatus for pre-conditioning an electrical signal
08/15/2007CN101019308A Demodulator for amplitude-modulated signals
08/15/2007CN101018362A A media access control method based on the OFDMA technology
08/15/2007CN101018225A OFDM symbol and frequency synchronization and channel style estimating method
08/15/2007CN101018224A Information transmission and receiving method and end of the mobile digital multimedia broadcast physical layer signaling
08/15/2007CN101018223A A transmission system and method of the mobile digital multimedia broadcast signals
08/15/2007CN101018222A A transmission method, device and transmitter and system of the mobile digital multi-media broadcast signal
08/15/2007CN101018221A Signal sending method of OFDM system and cell searching method
08/15/2007CN101018220A Implementation method and device for avoiding the interference between the cells
08/15/2007CN101018219A Space frequency signal processing method
08/15/2007CN101018218A An interference restraint method of the adjacent channels and signal receiving end
08/15/2007CN101018112A Transmission device and method, receiving device and method
08/15/2007CN101018111A Hydrid arq method for packet data transmission
08/15/2007CN101018105A A classified modulating mobile digital multimedia broadcast signal transmission system and method
08/15/2007CN101018104A Mobile digital multimedia broadcast signal transmission system and channel bandwidth change method
08/15/2007CN101018087A Downlink synchronization method and device of the mobile communication system
08/15/2007CN101018085A A method and system for providing the digital multi-media broadcast signal
08/15/2007CN101018083A Dopla frequency shift compensation method in the MPSK mobile communication system
08/15/2007CN101018079A Automatic gain control method, device and system
08/14/2007US7257731 System and method for managing protocol network failures in a cluster system
08/14/2007US7257423 Base station apparatus and transmission assignment control method
08/14/2007US7257385 Wireless communication semiconductor integrated circuit device and wireless communication system
08/14/2007US7257379 Compensating for analog radio component impairments to relax specifications
08/14/2007US7257178 Base band circuit of receiver and low cut-off frequency control method
08/14/2007US7257177 Determination of a reference value for automatic gain control of a receiver communicating with a packet switched communication network
08/14/2007US7257176 Method of frequency and phase offset estimation using least square method in a burst receiver
08/14/2007US7257175 Method and apparatus for periodic signal detection in OFDM/DMT systems
08/14/2007US7257171 Method and apparatus for reference symbol aided channel estimation
08/14/2007US7257170 Channel norm-based ordering and whitened decoding for MIMO communication systems
08/14/2007US7257168 Pilotless, wireless, telecommunications apparatus, systems and methods having equalization
08/14/2007US7257167 System and method for multi-access MIMO channels with feedback capacity constraint
08/14/2007US7257166 Data communication apparatus and method based on orthogonal frequency division multiple access
08/14/2007US7257165 Method and apparatus for preamble detection and time synchronization estimation in OFDM communication systems
08/14/2007US7257156 Systems and methods for equalization of received signals in a wireless communication network
08/14/2007US7257155 Method for initialization and stepsize control of time-domain equalizer in multi-carrier communication system
08/14/2007US7257153 Method of synchronizing a receiver, and a receiver
08/14/2007US7257150 Rake receiver and a method of providing a frequency error estimate
08/14/2007US7257128 Master-slave data transmission in orthogonal frequency-division multiplexing
08/14/2007US7257102 Carrier frequency offset estimation from preamble symbols
08/14/2007US7257078 Multiple antenna OFDM transceiver and method for transceiving
08/14/2007US7256954 Adaptive equalizer
08/09/2007WO2007090067A1 Methods and tools for expanding coverage of an ofdm broadcast transmitter via transmit timing advance
08/09/2007WO2007089180A1 Cyclic redundancy in ofdm systems
08/09/2007WO2007088938A1 Phase control device, and pulse pattern generator and error detector using the phase control device
08/09/2007WO2007088723A1 Modulation parameter selecting method, modulation parameter selecting apparatus and communication apparatus
08/09/2007WO2007088457A1 Apparatus , method and computer program product for efficent signaling of user allocations
08/09/2007WO2007069995A3 Channel quality reporting and link adaptation for multi-carrier broadband wireless communication
08/09/2007WO2007049142A3 Apparatus, method and computer program product providing common channel arrangements for soft frequency reuse
08/09/2007WO2007028835A3 Modulation method with insertion of semi-pilot symbols
08/09/2007US20070186268 Cross-encoding of information in independent channels
08/09/2007US20070186261 Data-specific bandwidth allocation in multipoint-to-point communication using orthgonal frequency division multiplexing
08/09/2007US20070186260 Methods for multiframe alignment
08/09/2007US20070186258 Tone allocation in multipoint-to-point communication using orthgonal frequency division multiplexing
08/09/2007US20070185949 Demodulation of a multi-level quadrature amplitude modulation signal
08/09/2007US20070184797 Apparatus for radio telecommunication system and method of building up output power
08/09/2007US20070183591 Dynamic bandwidth allocation
08/09/2007US20070183537 Radio receiver and noise estimated value correction method
08/09/2007US20070183536 Method of differential-phase/absolute-amplitude polar qam
08/09/2007US20070183535 Sampling method for a spread spectrum communication system
08/09/2007US20070183534 Phasor fragmentation circuitry and method for processing modulated signals having non-constant envelopes
08/09/2007US20070183533 MIMO system with spatial diversity
08/09/2007US20070183532 Method and system for transmitter envelope delay calibration
08/09/2007US20070183531 Multi-mode selectable modulation architecture calibration and power control apparatus, system, and method for radio frequency power amplifier
08/09/2007US20070183530 Transmission device and radio communication device
08/09/2007US20070183521 Method of channel estimation
08/09/2007US20070183519 Method for channel estimation in orthogonal frequency division multiplexing system and device thereof
08/09/2007US20070183515 Method and apparataus for transmitting data in a multi-antenna wireless system
08/09/2007US20070183514 Orthogonal frequency division multiplexing receiver
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