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)
09/2012
09/04/2012US8259849 Wireless communication apparatus, wireless communication method, computer program, and wireless communication system
09/04/2012US8259848 Hierarchical modulation for communication channels in single-carrier frequency division multiple access
09/04/2012US8259847 Extended non-return-to-zero serial channel signaling
09/04/2012US8259844 Method for setting cyclic shift considering frequency offset
09/04/2012US8259843 Dynamic digital pre-distortion system
09/04/2012US8259842 Successive codebook and feedback in precoding systems
09/04/2012US8259841 Digital transmitter
09/04/2012US8259840 Data communication via a voice channel of a wireless communication network using discontinuities
09/04/2012US8259839 Method for avoiding interference radiation of AM transmitters used in digital transmission
09/04/2012US8259838 Signal transmission system for transmitting transmission signals via a transmission line including transmission conductors
09/04/2012US8259837 Communication apparatus and communication method
09/04/2012US8259832 QAM and GMSK modulation methods
09/04/2012US8259831 Subband indexing methods and systems
09/04/2012US8259829 Method for estimating the time of arrival in ultra wideband systems
09/04/2012US8259825 Mapping and signaling of common reference symbols for multiple antennas
09/04/2012US8259823 Energy-efficient uplink slot allocation in time-frequency division multiple access systems
09/04/2012US8259822 Polar and quadrature modulated cellular, WiFi, WiLAN, satellite, mobile, communication and position finder systems
09/04/2012US8259820 Method for low power communication encoding
09/04/2012US8259778 Method and transceiver apparatus for transmitting paging information in orthogonal frequency-division multiplexing systems
09/04/2012US8259696 Wireless communication system using HARQ and method of operating the system
09/04/2012US8259642 Method and apparatus for realizing space division multiplexing
09/04/2012CA2575789C A transmit system employing an antenna and balanced amplifier architecture which provides power amplifier load balancing independent of single or dual signal operation of the transmitter
09/04/2012CA2466572C Method and system for determining data transfer margins for network connections
09/04/2012CA2460613C Multi-carrier frequency-division multiplexing (fdm) architecture for high speed digital service in local networks
08/2012
08/30/2012WO2012116323A1 Preventing dropped calls using voice services over adaptive multi-user channels on one slot (vamos) mode
08/30/2012WO2012116109A2 System and method for single carrier optimization for evolved multimedia broadcast multicast service
08/30/2012WO2012115800A1 Reporting leakage between component carriers due to iq imbalance multi- carrier wireless communication systems
08/30/2012WO2012115797A1 Iq imbalance image compensation in multi-carrier wireless communication systems
08/30/2012WO2012115678A1 Two-step joint demapping algorithm for llr computation of mimo signal based on sphere decoding
08/30/2012WO2012115618A1 Method and system for multiple training sequences for peak-to-average power ratio reduction in precoded bursts
08/30/2012WO2012115465A2 Method for coding and transmitting uplink control information in a wireless access system
08/30/2012WO2012114830A1 Wireless control device, wireless communication system, control program, and integrated circuit
08/30/2012WO2012113642A1 Operation of user equipment when control and data information are supplied by different radio units
08/30/2012WO2012091490A3 Method and device for ack/nack transmission in tdd-based wireless communication system
08/30/2012WO2012070839A3 Method and apparatus for transmitting ack/nack for downlink transmission in wireless communication system
08/30/2012WO2012060632A3 Method and device for transmitting/receiving uplink control information in wireless communication system
08/30/2012WO2010064791A3 Apparatus and method for controlling gain of polar transmitter
08/30/2012US20120219098 Controllable filter to diagonalize a transmission channel
08/30/2012US20120219096 Method and Arrangement Related to Blind Detection
08/30/2012US20120219095 Blind Control Channel Detection
08/30/2012US20120219094 Operation of User Equipment When Control and Data Information are Supplied by Different Radio Units
08/30/2012US20120219093 Method and apparatus for channel quality measurements
08/30/2012US20120219091 Method and transmitter for transmitting for transmitting signal and receiver thereof in wireless communication system
08/30/2012US20120219088 Signal Processing Circuit and Method
08/30/2012US20120219087 Apparatus and method for improving high-power signal receiving performance using low-power signals
08/30/2012US20120219086 Spectral shaping of multicarrier signals
08/30/2012US20120219085 Extremely High Speed Broadband Access Over Copper Pairs
08/30/2012US20120219083 Wireless feedback system and method
08/30/2012US20120219082 MIMO Wireless Communication Systems
08/30/2012US20120219079 Receiving device, receiving method, communication system, and communication method
08/30/2012US20120219078 Subband Indexing Methods and Systems
08/30/2012US20120219077 Method and apparatus for generating/transmitting a frame for wireless communication, and synchronization estimation method for wireless communication
08/30/2012US20120219076 System and method of coded cooperation using amplify-and-forward scheme
08/30/2012US20120219047 Systems and methods for a multicarrier modulation system with a variable margin
08/30/2012US20120219045 Communication apparatus and method for communication
08/30/2012US20120219044 Apparatus and method for clock synchronization in a multi-point ofdm/dmt digital communications system
08/30/2012US20120217906 Failure information transmission apparatus
08/30/2012DE10325833B4 Verfahren und Schaltung zur Crestfaktor-Reduzierung Method and circuit for crest factor reduction
08/30/2012DE102004013885B4 Verfahren sowie Modulationssteuereinrichtung zur drahtlosen Datenübertragung Procedures and modulation control device for wireless data transmission
08/30/2012CA2817446A1 Method and system for multiple training sequences for peak-to-average power ratio reduction in precoded bursts
08/29/2012EP2492841A2 Communication apparatus and computer program product
08/29/2012EP2491693A1 Measurement and carrier group based optimization in wireless ofdm multi-carrier communication systems
08/29/2012EP2491692A1 A communications system utilizing orthogonal linear frequency modulated waveforms
08/29/2012EP2491691A1 Systems and methods for providing atc overlay protocols
08/29/2012EP2491659A1 Time and frequency acquisition and tracking for ofdma wireless systems
08/29/2012CN202406184U Double-frequency GSM modem of USB interface
08/29/2012CN202406136U Device for optimizing and modulating wave forms
08/29/2012CN1961478B Staggered agc with digitally controlled vga
08/29/2012CN1669257B Communicating method, transmitting device using the same, and receiving device using the same
08/29/2012CN102652417A Wireless relaying device, wireless transmission device, and wireless relaying method
08/29/2012CN102652416A Apparatus and method for cubic metric computation in dual-carrier and multi-carrier wireless communication system
08/29/2012CN102652415A Digital communications receiver
08/29/2012CN102651727A Incoherence detection method used in spatial modulation-orthogonal frequency division multiplexing (SM-OFDM) system of a plurality of antennas
08/29/2012CN102651726A Receiver of OFDM multicarrier communication system
08/29/2012CN102651723A Channel estimation method and system based on time-domain training sequence
08/29/2012CN102651656A Signal processing method, device and system based on twisted pairs
08/29/2012CN102130868B Communication system
08/29/2012CN101958764B Transmitting device, signal generating apparatus and transmitting method
08/29/2012CN101848532B Reference signal received power threshold adjusting method and equipment
08/29/2012CN101827063B Frequency multiplexing device and method of OFDMA (Orthogonal Frequency Division Multiplexing Access) system
08/29/2012CN101827062B Peak clipping compensating device with peak clipping unit threshold and transmitter
08/29/2012CN101827057B Channel estimation method and channel estimator for orthogonal frequency division multiplexing (OFDM) communication system
08/29/2012CN101808184B Digital broadcasting receiver
08/29/2012CN101764785B Quadrature amplitude modulation signal identifying method based on mixed moment and fisher discrimination
08/29/2012CN101741789B Phase correction circuit and phase correction method thereof
08/29/2012CN101710889B Blind symbol rate estimating method for multi-path linear hybrid digital modulation signals
08/29/2012CN101690340B Base station apparatus, mobile station apparatus, and synchronization channel transmission method
08/29/2012CN101682599B Method for transmitting control information, and method for generating codeword for the same
08/29/2012CN101651653B Peak clipping method for multi-carrier frequency hopping communication system
08/29/2012CN101631095B Adaptive non-linearity compensation in coherent receiver
08/29/2012CN101627583B A method of implementing superposition coding for a forward link in a wireless commnication system
08/29/2012CN101605122B Receiver and receiving method of the receiver
08/29/2012CN101584171B A method and structure of configuring preamble to support transmission of data symbol in a wireless communication system
08/29/2012CN101562478B Method for adaptively adjusting CFR threshold and radio frequency zooming system
08/29/2012CN101534572B Methods and systems for resource allocation
08/29/2012CN101534160B Wireless channel parameter measurement device and method thereof
08/29/2012CN101529840B Robust and low-complexity combined signal power estimation for OFDM
08/29/2012CN101465687B Method, apparatus and terminal equipment for estimating frequency deviation
08/29/2012CN101447960B Interlayer modulation method, device, orthogonal frequency division multiple access method and transmitter
08/29/2012CN101444129B Method and apparatus for communication system
1 ... 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 ... 898