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)
04/2010
04/01/2010US20100080310 Orthogonal frequency division multiplexing (ofdm) communications device and method that incorporates low papr preamble and variable number of ofdm subcarriers
04/01/2010US20100080309 Low peak-to-average power ratio (papr) preamble for orthogonal frequency division multiplexing (ofdm) communications
04/01/2010US20100080308 Virtual multicarrier design for orthogonal frequency division ...
04/01/2010US20100080307 Random access preamble structure in extended cells environment
04/01/2010US20100080282 Re-adaption of equalizer parameter to center a sample point in a baud-rate clock and data recovery receiver
04/01/2010US20100080281 Method to calculate the real decision feedback equalizer coefficients
04/01/2010US20100080279 Method and apparatus for reducing interference of a signal over a plurality of stages
04/01/2010US20100080278 Filter structure implementation relating to a linear system solution
04/01/2010US20100080277 Using conjugate gradient method to calculate filter coefficient for time domain equalizer
04/01/2010US20100080271 Method and system for a control scheme on power and common-mode voltage reduction for a transmitter
04/01/2010US20100080270 Radio frequency indentification transceiver
04/01/2010US20100080267 Interference suppressing ofdm system for wireless communications
04/01/2010US20100080265 Orthogonal frequency division multiplexing (ofdm) communications device and method that incorporates low papr preamble and frequency hopping
04/01/2010US20100080208 Frequency Division Multiplex Transmission Device
04/01/2010US20100080207 Channel structuring method and base station therewith
04/01/2010US20100080182 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
04/01/2010US20100080176 Method and apparatus for scheduling downlink transmissions in an orthogonal frequency division multiplexing communication system
04/01/2010US20100080167 Handshaking method and apparatus for ofdm systems with unknown sub-channel availability
04/01/2010US20100080165 Mimo repeater apparatus, mimo handheld terminal apparatus, mimo wireless communication method
04/01/2010US20100080154 Method of transmitting reference signals in a wireless communication having multiple antennas
04/01/2010US20100080137 Primary and Secondary Associations for Improving Cell Edge Performance in Cellular Networks
04/01/2010US20100080136 Uplink transmit diversity enhancement
04/01/2010US20100080114 Low complexity bandwidth efficient carrier frequency offset estimation technique for ofdma uplink transmissions
04/01/2010US20100080112 Frequency Offset Estimation in Orthogonal Frequency Division Multiple Access Wireless Networks
03/2010
03/31/2010EP2169894A1 Receiving method and apparatus for OFDM-signals
03/31/2010EP2169893A2 Determination of a starting point of the FFT window in an OFDM receiver
03/31/2010EP2169892A1 Information processing apparatus, information processing method, display apparatus and information processing program
03/31/2010EP2169891A2 Information processor and corresponding method, display device and program
03/31/2010EP2169890A1 OFDM signal processing
03/31/2010EP2169864A1 Base station device, mobile station device, and synchronization channel transmission method
03/31/2010EP2168339A1 Rach preamble detection receiver
03/31/2010EP2168338A1 Method for data transmission within a communication system, subscriber and communication system
03/31/2010EP2168337A2 Method of detecting cyclo-stationary signals
03/31/2010EP2168336A1 Method of detecting presence of spectrally spread signals
03/31/2010EP2168335A1 Ofdm control signaling in the presence of timing asynchronization in a peer-to-peer network
03/31/2010EP2168298A2 Apparatus, methods and computer program products providing a common signaling entry for a modular control channel structure
03/31/2010EP2168297A1 Hierarchical modulation for communication channels in single-carrier frequency division multiple access
03/31/2010EP2168296A2 A method for interference estimation for orthogonal pilot patterns
03/31/2010EP2168250A1 Pseudo-random sequence mapping in wireless communications
03/31/2010EP1780969B1 Mitigation of radio frequency interference in multicarrier transmission
03/31/2010EP1000467B1 Apparatus and method for modulation /demodulation with consecutive minimum runlength limitation
03/31/2010CN201435791Y Bidirectional digital audio wireless mobile video transmission device
03/31/2010CN201435790Y Wireless multi-carrier vehicle bidirectional audio-video and data transmission device
03/31/2010CN201435789Y Mobile audio-video anti-explosion transmitter
03/31/2010CN101690368A Wireless transceiver with reduced transit emissions
03/31/2010CN101690340A Base station apparatus, mobile station apparatus, and synchronization channel transmission method
03/31/2010CN101690067A Setting the power level of the information elements in the OFDMA map according to the channel condition
03/31/2010CN101690066A Signalling within a communication system
03/31/2010CN101690065A Method and apparatus of generating signals for initial ranging in ofdma system
03/31/2010CN101690064A Control channel format indicator frequency mapping
03/31/2010CN101690063A Base station device and notice channel transmitting method
03/31/2010CN101690062A Improved synchronization for chip sequences
03/31/2010CN101690061A Spectrum sensing for OFDM signals by utilizing pilot tones
03/31/2010CN101690060A Apparatus and method for removing common phase error in a dvb-t/h receiver
03/31/2010CN101690059A Apparatus and method for modulation and demodulation using frequency selective baseband
03/31/2010CN101690058A Parallel sampling device, parallel sampling method, receiving device, and receiving method
03/31/2010CN101690053A Apparatus and method of generating and maintaining hybrid connection identifications (ids) for peer-to-peer wireless networks
03/31/2010CN101689987A Method of downlink resource allocation in a sectorized environment
03/31/2010CN101689968A Transmitting device and transmitting method
03/31/2010CN101689952A Apparatus and method for removing common phase error in a DVB-T/H receiver
03/31/2010CN101689951A Transmitter, transmitting method, receiver, and receiving method
03/31/2010CN101689935A Delay control in a mobile communication system
03/31/2010CN101689918A Apparatus, method and computer program product providing sequence modulation for uplink control signaling
03/31/2010CN101689907A Setting maximum power at a mobile communication system base station having multiple antennas
03/31/2010CN101689882A Apparatus and methods for estimating and correcting frequency offset in lte
03/31/2010CN101689872A Method for receiving and transmitting data in communication system of multi-band orthogonal frequency division multiplexing accession and communication apparatus using the same method
03/31/2010CN101686496A Methods for allocating downlink sub-frames, and transmitting and acquiring information of WiMAX evolution system
03/31/2010CN101686434A MBMS transmission feedback method, system and devices
03/31/2010CN101686220A Data processing methods and systems, wireless devices, wireless communication systems and transmiting devices
03/31/2010CN101686219A Method and system for processing communication signals
03/31/2010CN101686218A Method for OFDM communication system to transmit and receive frame prefix
03/31/2010CN101686217A Method and device for detecting ranging code of uplink channel of orthogonal frequency division multiple access (OFDMA) system
03/31/2010CN101686216A Fine symbol timing synchronization method and device for orthogonal frequency division multiplexing system
03/31/2010CN101686215A Signal code modulation (SCM) method and device
03/31/2010CN101686109A Method, device and system for transmitting and receiving signal in feedback system
03/31/2010CN101686101A Transmission method and device of multi-user joint mapping configuration
03/31/2010CN101686076A Method for transmitting ACK/NACK by using multiple antennae
03/31/2010CN101686066A Channel estimation method and device
03/30/2010US7689242 Channel estimator for OFDM system
03/30/2010US7689181 Circuit arrangement for regulating a DC signal component and mobile radio transmitter
03/30/2010US7688929 All-digital phase modulator/demodulator using multi-phase clocks and digital PLL
03/30/2010US7688920 AFC wrap-around detection
03/30/2010US7688919 Parallel samples, parallel coefficients, time division multiplexing correlator architecture
03/30/2010US7688918 Recursive phase estimation for a phase-shift-keying receiver
03/30/2010US7688917 Configurable all-digital coherent demodulator system for spread spectrum applications
03/30/2010US7688915 Method and system for blindly detecting a discontinuously transmitted shared channel, in particular blind high speed shared control channels detection
03/30/2010US7688913 Radio transmitting apparatus, radio receiving apparatus, and M-ary modulation communication system
03/30/2010US7688911 Method and apparatus for synchronizing alternating quadratures differential binary phase shift keying modulation and demodulation arrangements
03/30/2010US7688907 Method for channel estimation in orthogonal frequency division multiplexing system and device thereof
03/30/2010US7688906 Wireless frame having alternating cyclic prefixes
03/30/2010US7688903 Multicarrier transmission apparatus and method
03/30/2010US7688902 Joint space-time block decoding and viterbi decoding
03/30/2010US7688901 Transmission method, transmission apparatus, and reception apparatus
03/30/2010US7688899 Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion
03/30/2010US7688898 Adaptive channel bandwidth selection for MIMO wireless systems
03/30/2010US7688887 Precision adaptive equalizer
03/30/2010US7688886 Receiving method and receiving apparatus
03/30/2010US7688811 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
03/30/2010US7688797 Method and transmission device for transmission of data in a multi-carrier system
03/30/2010US7688774 Interference cancellation in radio system receiver
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