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)
05/2010
05/12/2010CN101110602B Carrier wave catching system and method based on multimode operation
05/12/2010CN101098326B Self-adaption resource allocation method in orthogonal frequency division multiplexing multi-address access system
05/12/2010CN101098294B Carrier distribution method and apparatus for high speed downlink packet access technology
05/12/2010CN101083639B Fraction time sampling based filter group and filtering method
05/12/2010CN101064707B Bandlimited stochastic sequence generating method and its apparatus
05/12/2010CN101043500B Method for determining inverse data modulation coding mode and access terminal thereof
05/12/2010CN101039288B Channel estimation method and apparatus for preventing timing deviation in OFDM system
05/12/2010CN101015183B Method of converting a digital bb (baseband) signal into an analog if (intermediate-frequency) signal
05/12/2010CN101002418B Method and apparatus to compensate for receiver frequency error in noise estimation processing
05/12/2010CN101001111B Method, device and system for transmitting data signal using optical fibre
05/11/2010US7715886 Method and apparatus of reduced power consumption in TDMA signal reception via backward output of input stream to eliminate receiver training period
05/11/2010US7715809 EDGE modulator
05/11/2010US7715802 Frequency synthesizer and multi-band radio apparatus using said frequency synthesizer
05/11/2010US7715505 Adaptive synchronization enhancement technique for serial modulated waveforms
05/11/2010US7715504 Receiving apparatus and transmitting apparatus
05/11/2010US7715502 Digital low-power CMOS pulse generator for ultra-wideband systems
05/11/2010US7715501 Partial response receiver
05/11/2010US7715499 Frequency compensated communications reception
05/11/2010US7715498 Wireless communication method and apparatus for performing post-detection constellation correction
05/11/2010US7715497 Radio transmitter apparatus, radio receiver apparatus, and wireless communication system
05/11/2010US7715496 Channel state determination method and channel state generator in receiver
05/11/2010US7715495 Communication system, transmitter, receiver, transmitting method, receiving method, and program
05/11/2010US7715494 Digital transmitter
05/11/2010US7715492 Transmitter and transmission method
05/11/2010US7715491 System for processing and transmitting digital broadcasting signal and method thereof
05/11/2010US7715490 Spectral emission shaping sigma delta modulator for wireless applications
05/11/2010US7715487 Wireless apparatus employing multi-level QAM and method for estimating threshold value
05/11/2010US7715486 Method and device for estimating the transfer function of the transmission channel for a COFDM demodulator
05/11/2010US7715485 MIMO communication using interference cancellation and unequal transmit power distribution
05/11/2010US7715483 Apparatus and method for transmitting a sub-channel signal in a communication system using an orthogonal frequency division multiple access scheme
05/11/2010US7715470 Receiver and a receiving method
05/11/2010US7715462 Variable spreading factor-orthogonal frequency and code division multiplexing (VSF-OFCDM) system, a receiver for use therein and a method of processing received signals in such a system
05/11/2010US7715425 Channel adaptation synchronized to periodically varying channel
05/11/2010US7715375 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
05/11/2010US7715358 OFDMA with adaptive subcarrier-cluster configuration and selective loading
05/11/2010CA2506512C Method and apparatus for optimizing transmitter power efficiency
05/06/2010WO2010051519A2 Techniques for transmission of channel quality data in wireless systems
05/06/2010WO2010051516A2 Techniques for quick access channel information loading in wireless networks
05/06/2010WO2010051514A1 Method and apparatus for wireless transmissions using multiple uplink carriers
05/06/2010WO2010051179A2 Rf transmitter and method of operation
05/06/2010WO2010050887A1 Method and arrangement in a multi-carrier communication network system
05/06/2010WO2010050774A2 Method for transmitting signals in multi-carrier radio transmission system
05/06/2010WO2010050754A2 Method for efficiently transmitting physical channel in multi-carrier aggregation state to support broadband
05/06/2010WO2010050704A2 Method of transmitting signal in wireless communication system and apparatus thereof
05/06/2010WO2010049962A1 Papr reduction in multi-carrier transmission
05/06/2010WO2010048984A1 Techniques for data transmission using high-order modulation
05/06/2010WO2010048657A1 Block spreading for orthogonal frequency division multiple access systems
05/06/2010WO2010031005A3 A method and apparatus for iterative receiver structures for ofdm/mimo system with bit interleaved coded modulation based on soft output m algorithm with mmse pre-filtering
05/06/2010WO2010030611A3 Common mode and unified frame format for different transmission schemes
05/06/2010WO2009152177A3 Interference reduction between ofdm carriers by carrier spacing optimization
05/06/2010US20100115124 Method for Improving Transmission Efficiency of Physical Layer Attributes in Wireless Communication System
05/06/2010US20100114969 Method and/or system for transmitting and/or receiving data
05/06/2010US20100113085 Method for effectively transmitting synchronization channel and method for allocating transmission power for the same
05/06/2010US20100111540 Filter-based dpsk receiver
05/06/2010US20100111302 Digital signal processing method an system employing such method
05/06/2010US20100111236 Course timing synchronization
05/06/2010US20100111235 Method of determining as to whether a received signal includes an information signal
05/06/2010US20100111234 System for soft symbol decoding mimo log-map detection
05/06/2010US20100111233 Method and receiver for estimating the channel impulse response using a constant modulus interference removal iteration
05/06/2010US20100111232 Method and apparatus for iterative receiver structures for ofdm/mimo systems with bit interleaved coded modulation
05/06/2010US20100111231 Ofdm channel estimation method and apparatus
05/06/2010US20100111230 Receiver capable of compensating for mismatch of i signal and q signal and communication system including the same
05/06/2010US20100111229 Method and apparatus of generating packet preamble
05/06/2010US20100111228 Radio communication apparatus and radio communication method
05/06/2010US20100111227 Digital polar radio frequency transmitting device with a radiofrequency reference oscillator and an integrated circuit comprising such device
05/06/2010US20100111226 Method for transmitting control information in multiple antenna system
05/06/2010US20100111225 Forward Error Correction Coding For AM 9kHz and 10kHz In-Band On-Channel Digital Audio Broadcasting Systems
05/06/2010US20100111220 METHOD AND APPARATUS USING SOUNDING PPDUs TO PROVIDE RANGE EXTENSION TO IEEE 802.11n SIGNALS
05/06/2010US20100111219 Communication methods and systems having data permutation
05/06/2010US20100111217 Method and system for reducing phase difference and doppler effects in detection and communication systems
05/06/2010US20100111216 Secure Communication Method, Transmission Apparatus and Reception Apparatus
05/06/2010US20100111215 Beamforming protocol for wireless communications
05/06/2010US20100111212 Decision Feedback Channel Estimation And Pilot Tracking for OFDM Systems
05/06/2010US20100111211 Apparatus and method for transmitting/receiving data in a mobile communication system using multiple antennas
05/06/2010US20100111210 Communication methods and systems having permutation schemes
05/06/2010US20100111209 DTF Spread OFTM
05/06/2010US20100111207 Transmitter and method for configuring transmission frame
05/06/2010US20100111205 Data transmission system and method
05/06/2010US20100111203 Wireless transmitting and receiving device and method
05/06/2010US20100111160 method and apparatus for multiple antenna communications, computer program product therefor
05/06/2010US20100111157 Wireless communication device, wireless communication method, signal processing device, signal processing method, and computer program
05/06/2010US20100111154 Electronic device, integrated circuit and method therefor
05/06/2010US20100111148 Method for synchronizing seamless rate adaptation
05/06/2010US20100111147 Variable PHY Margin to Combat Ingress Noise
05/06/2010US20100111146 Communication device and communication system
05/06/2010US20100111145 Baseband unit having bit repetitive encoded/decoding
05/06/2010US20100111141 Cancellation of burst noise in a communication system with application to S-CDMA
05/06/2010US20100111140 Methods, Apparatuses and Computer Program Products for Code Correlation of Multi-Path Spread Spectrum Signals
05/06/2010US20100111138 Versatile System for Dual Carrier Transformation in Orthogonal Frequency Division Multiplexing
05/06/2010US20100111065 Method for transmitting downlink reference signals in a multi-antenna wireless communication system
05/06/2010US20100111044 Mobile station, base station, communication system, and communication method
05/06/2010US20100111037 Communication System, Base Station and Mobile Station Used in the Communication System, and Base Station Switching Method
05/06/2010US20100111031 Method for transmitting control signal using efficient multiplexing
05/06/2010US20100111030 Frequency Hopping Scheme for OFDMA System
05/06/2010US20100111008 Base station apparatus and communication control method
05/06/2010US20100110991 User equipment for physical layer automatic repeat request
05/06/2010US20100110983 Downlink network synchronization mechanism for femtocell in cellular OFDM systems
05/06/2010US20100110968 Multiple relay based multiple input multiple output communication system
05/06/2010US20100110959 Mobile communication system, terminal device, base station device and data communication method
05/06/2010US20100110955 Signalling channel and radio system for power saving in wireless devices
1 ... 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 ... 898