Patents for H04L 27 - Modulated-carrier systems (89,721) |
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02/19/2009 | US20090046803 Transmitter and receiver for a wireless audio transmission system |
02/19/2009 | US20090046801 Method and apparatus for creating a multi-user mimo codebook using a single user mimo codebook |
02/19/2009 | US20090046800 Feedback and rate adaptation for mimo transmission in a time division duplexed (tdd) communication system |
02/19/2009 | US20090046799 Decoder and decoding method supporting ofdm/ofdma |
02/19/2009 | US20090046794 Multi-input multi-output communication device, antenna device and communication system |
02/19/2009 | US20090046792 Method and system of time-of-arrival estimation for ultra wideband multi-band orthogonal frequency division multiplexing signals |
02/19/2009 | US20090046791 Multicarrier receiving apparatus, multicarrier communication system and demodulation method |
02/19/2009 | US20090046790 Multi-bandwidth communication system using a shared baseband processor |
02/19/2009 | US20090046789 Systems and methods for conserving the power supply of a communications device |
02/19/2009 | US20090046788 Techniques for Reducing Precoding Overhead in a Multiple-Input Multiple-Output Wireless Communication System |
02/19/2009 | US20090046787 Transmitting apparatus, receiving apparatus, and wireless communication method |
02/19/2009 | US20090046786 System and method of operating a mimo system |
02/19/2009 | US20090046629 Signaling of Random Access Preamble Sequences in Wireless Networks |
02/19/2009 | US20090046609 Transaction control system including portable data terminal and mobile customer service station |
02/19/2009 | US20090046571 Method and apparatus for transmitter timing adjustment |
02/19/2009 | CA2694730A1 Communication system using a shared baseband processor for transmission and reception over different bandwidths |
02/19/2009 | CA2694188A1 Frequency diverse transmissions in a wireless communication system |
02/19/2009 | CA2694185A1 Coding and multiplexing of control information in a wireless communication system |
02/18/2009 | EP2026522A2 Method and system for polar modulation with discontinuous phase |
02/18/2009 | EP2026521A2 Method and apparatus for transmitting and receiving different signal types in communication systems |
02/18/2009 | EP2026520A1 Method and arrangement for transmitting an optical OFDM-signal |
02/18/2009 | EP2026518A2 Method and apparatus for pilot muliplexing in a wireless communication system |
02/18/2009 | EP2026487A1 Ofdm modulated wave output device and distortion compensation method |
02/18/2009 | EP2026486A1 Transmitting apparatus, transmitting method, receiving apparatus, receiving method and transfer system |
02/18/2009 | EP2026472A1 Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems |
02/18/2009 | EP2025116A2 Phase correction for ofdm and mimo transmissions |
02/18/2009 | EP2025115A2 Methods and apparatus to perform line testing at customer premises |
02/18/2009 | EP2025114A1 Apparatus and method for allocating resources in an orthogonal frequency division multiple access mobile communication system |
02/18/2009 | EP2025070A2 Signal acquisition in a wireless communication system |
02/18/2009 | EP1929691A4 Resource allocation method for mimo-ofdm of multi-user access systems |
02/18/2009 | EP1825603B1 Apparatus and method for determining a correlation value |
02/18/2009 | EP1579370B1 Method of automatically setting the gain of an interrogator receiver within a non-contacting identification system |
02/18/2009 | EP1450170B1 Phase detector capable of detecting an accumulated value of phase displacement at a high speed and frequency stability measurement apparatus for arbitrary nominal frequency using the same |
02/18/2009 | EP1401139B1 Data communication device and data communication method |
02/18/2009 | EP0821854B1 Frequency error detector |
02/18/2009 | CN101371557A Method for adressing and signalling using sequences with predetermined correlation properties |
02/18/2009 | CN101371548A Method for transmitting signals in a radio communication system |
02/18/2009 | CN101371547A Radio communication system |
02/18/2009 | CN101371546A Method and device for estimating channel of uplink signal in wireless communication system |
02/18/2009 | CN101371545A Pilot scrambling in communications systems |
02/18/2009 | CN101371544A A method for reducing peak-to-average power ratio in an OFDM transmission system |
02/18/2009 | CN101371543A A method for transmitting and receiving data using a plurality of carriers |
02/18/2009 | CN101371542A Low-complexity method and apparatus for appending circulating expansion to continuous phase modulation signal |
02/18/2009 | CN101371541A Pulse transmission method |
02/18/2009 | CN101371540A Cartesian modulation system via multi-level pulse width modulation |
02/18/2009 | CN101371486A A method of packet format dependent selection of MIMO-OFDM demodulator |
02/18/2009 | CN101371453A Wireless communications system employing OFDMA and CDMA techniques |
02/18/2009 | CN101370135A Robust system for transmitting and receiving map data |
02/18/2009 | CN101370000A Multi-carrier implementing method and apparatus for TD-SCDMA system |
02/18/2009 | CN101369999A Recursion type discrete Fourier processor single-core apparatus and use thereof |
02/18/2009 | CN101369998A Digital despicking method and device |
02/18/2009 | CN101369898A Meteor trail self-adapting variable-velocity burst modem |
02/18/2009 | CN101369882A Frequency synchronization method based on pre-correction of sending terminal |
02/18/2009 | CN101369881A Multi-carrier digital frequency-selection system and its signal processing method |
02/18/2009 | CN101369850A Method and arrangement for transmitting an optical ofdm-signal |
02/18/2009 | CN101369836A Wireless signal transmitting/receiving method and transmitting/receiving device |
02/18/2009 | CN100463506C Constellation mapping and interweaving method and device in the digital TV system |
02/18/2009 | CN100463459C WiMAX system base station receiving end timing and frequency deviation combined synchnonization method |
02/18/2009 | CN100463458C Method for implementing frequency hopping synchronization for orthogonal frequency division multiplex |
02/18/2009 | CN100463457C Multi-channel multiplexing cascade integrating comb filter |
02/18/2009 | CN100463456C Method and packet radio system for controlling link adaptation |
02/18/2009 | CN100463455C Method for estimating channel capacity of multi-input multi-output system |
02/18/2009 | CN100463420C Method for sending channel quality information, corresponding mobile terminal and base station |
02/18/2009 | CN100463388C Transmitting device and transmitting method |
02/18/2009 | CN100463371C Rough frequency synchronizing method and device in orthogonal FDM system |
02/17/2009 | US7492845 Adaptive equalization system for a signal receiver |
02/17/2009 | US7492843 Method of synchronization for packet based, OFDM wireless systems with multiple receive chains |
02/17/2009 | US7492842 Method for antenna diversity |
02/17/2009 | US7492839 Efficient implementation of GSM/GPRS equalizer |
02/17/2009 | US7492837 Parameter estimation for adaptive antenna system |
02/17/2009 | US7492836 Wireless data communication demodulation device and demodulation method |
02/17/2009 | US7492835 Synchrodyning apparatus |
02/17/2009 | US7492833 Method for digital wireless communications |
02/17/2009 | US7492832 Method and apparatus for digital vector QAM modulator |
02/17/2009 | US7492831 Method for generating multiplier coefficients for a mixer |
02/17/2009 | US7492830 Signal receiving method in MIMO system and device therefor |
02/17/2009 | US7492828 Time synchronization using spectral estimation in a communication system |
02/17/2009 | US7492811 Method and system for fast acquisition of ultra-wideband signals |
02/17/2009 | US7492791 Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system |
02/17/2009 | US7492701 Apparatus and method for controlling adaptive modulation and coding in an orthogonal frequency division multiplexing communication system |
02/17/2009 | US7492700 Method and analyzing device for analyzing an OFDM signal |
02/17/2009 | US7492699 Method of reducing feedback channel state information within adaptive OFDMA system and adaptive OFDMA system using the same |
02/17/2009 | US7492294 Receiving method with digital level adjustment in the analog section and incremental level change in the digital section |
02/12/2009 | WO2009021244A2 Transmission using nested ofdma |
02/12/2009 | WO2009020942A1 Pilot-based two-dimensional channel estimation |
02/12/2009 | WO2009020935A2 Rate adaptive modem |
02/12/2009 | WO2009020422A2 Multicarrier communication system employing explicit frequency hopping |
02/12/2009 | WO2009020275A1 Demodulation device and method in transmission system |
02/12/2009 | WO2009020266A1 System and method for digital communication having a circulant bit interleaver for equal error protection (eep) and unequal error protection (uep) |
02/12/2009 | WO2009019139A1 Fft/ifft clock adjustment |
02/12/2009 | WO2009018871A1 Method and arrangement for production of a frequency-modulated signal |
02/12/2009 | WO2008156340A3 Method for receiving control information in orthogonal frequency division multiplexing system of mobile communication system |
02/12/2009 | WO2008153479A3 Method and apparatus for controlling multi-antenna transmission in a wireless communication network |
02/12/2009 | WO2008152304A3 Method of synchronizing a multicarrier signal, corresponding emission method, devices and computer programs |
02/12/2009 | WO2008145337A3 A method for interference estimation for orthogonal pilot patterns |
02/12/2009 | WO2008086204A3 Methods and apparatus for timing synchronization based on transitional pilot symbols |
02/12/2009 | WO2007127938A3 Multi-port mixed-radix fft |
02/12/2009 | US20090044081 Method and system for providing short block length low density parity check (ldpc) codes in support of broadband satellite applications |
02/12/2009 | US20090043528 Testing apparatus and testing method |
02/12/2009 | US20090042558 Transmission of ACK/NACK Bits and their Embedding in the CQI Reference Signal |