Patents for H04L 27 - Modulated-carrier systems (89,721)
02/2012
02/15/2012CN101252564B 超宽带通信中码正交发送参考调制解调系统 Ultra-wideband communications code quadrature modulation and demodulation system sends reference
02/15/2012CN101193043B 一种在有线电视网络中实现数据回传的方法 A data backhaul method implemented in the cable television network
02/15/2012CN101093253B 卫星导航系统的调制信号 Modulated signal satellite navigation system
02/15/2012CN101047687B 一种跟踪电路和跟踪方法 A circuit tracing and tracking methods
02/14/2012US8116413 Signal level adjuster with incremental gain adjustments, for RF communication equipment
02/14/2012US8116411 Method to detect data transmitted from multiple antennas and system thereof
02/14/2012US8116410 Communication signal decoding and soft demapping methods and systems
02/14/2012US8116409 Method and apparatus for SerDes jitter tolerance improvement
02/14/2012US8116408 Gain control for reduced interframe spacing (RIFS)
02/14/2012US8116407 Data recovery system and method thereof
02/14/2012US8116406 Apparatus and method for generating soft bit metric and M-ary QAM receiving system using the same
02/14/2012US8116405 Method and apparatus for time synchronization using GPS information in communication system
02/14/2012US8116403 Wireless transmission device and wireless transmission method
02/14/2012US8116402 Method and system for cognitive radio
02/14/2012US8116401 Method and system for digital spur cancellation
02/14/2012US8116400 Apparatus for adapting reception modes of a mobile DTV receiver in response to signaling
02/14/2012US8116399 Multiple-input multiple-output signal detectors based on relaxed lattice reduction
02/14/2012US8116396 Method for re-ordering multiple layers and detecting signal of which the layers have different modulation orders in multiple input multiple output antenna system and receiver using the same
02/14/2012US8116395 MB-OFDM receiver that weights a quality of each subcarrier
02/14/2012US8116394 Long term evolution (LTE) radio link timing synchronization
02/14/2012US8116393 Method and apparatus for estimating channel state information
02/14/2012US8116390 Apparatus and method for allocating resources and performing communication in a wireless communication system
02/14/2012US8116388 Time domain interference averaging with multiuser diversity in OFDMA systems
02/14/2012US8116381 Digital broadcasting system and data processing method in digital broadcasting system
02/14/2012US8116363 Method of determining true error vector magnitude in a wireless LAN
02/14/2012US8116360 Method and apparatus for preventing loss of service from hardware failure in a network
02/14/2012US8116352 Method for direct chaotic communications with predetermined spectral mask
02/14/2012US8116351 Downlink power control with limit to dynamic range using detection of downlink transmit power
02/14/2012US8116298 Communication server apparatus providing XDSL services and method
02/14/2012US8115605 Power line communications device in which physical communications protocol layer operation is dynamically selectable
02/14/2012CA2566330C Continuous beamforming for a mimo-ofdm system
02/14/2012CA2459778C System and method for modulation of non-data bearing carriers in a multi-carrier modulation system
02/09/2012WO2012019050A1 VHT-SIG-B FIELD IN NULL DATA PACKETS (NDPs)
02/09/2012WO2012018228A2 Transmission of uplink control signals in a communication system
02/09/2012WO2012018193A2 Multiplexing control and data information from a user equipment
02/09/2012WO2012018002A1 Wireless communication system, communication device, communication method, and communication program
02/09/2012WO2012016548A1 Method and apparatus for broadband carrier frequency and phase recovery in coherent optical system
02/09/2012WO2012016456A1 Secondary synchronization signal detection method and device
02/09/2012WO2012016318A1 System and method for joint voice and data transmission
02/09/2012US20120033768 Non-coherent detection apparatus and method for ieee 802.15.4 lr-wpan bpsk receiver
02/09/2012US20120033767 Selective quantization of decision metrics in wireless communication
02/09/2012US20120033766 Receiver circuit and receiver apparatus including the same
02/09/2012US20120033765 Reception device, program, and reception method
02/09/2012US20120033764 Method and apparatus for audio noise reduction of frequency modulation (fm) receiver
02/09/2012US20120033763 Method and Apparatus for Channel Response Calculation in an OFDM Receiver
02/09/2012US20120033762 Method for dynamically adjusting one or more rf parameters and communications apparatuse utilizing the same
02/09/2012US20120033761 Hybrid Adaptive Antenna Array
02/09/2012US20120033760 Extended non-return-to-zero serial channel signaling
02/09/2012US20120033759 Phase Calibration and Erroneous Cabling Detection for a Multi-Antenna Radio Base Station
02/09/2012US20120033757 Monitoring system, device, monitoring method, and monitoring program
02/09/2012US20120033754 Ofdm channel estimation method and apparatus
02/09/2012US20120033753 Communication Method and Radio Transmitter
02/09/2012US20120033752 Wireless communication device and wireless communication method
02/09/2012US20120033751 Channel estimation for a control channel in an ofdm system
02/09/2012US20120033750 Transport block size
02/09/2012US20120033749 Wireless communication system, wireless communication device, program, and wireless communication method
02/09/2012US20120033748 Transmission circuit and communication system
02/09/2012US20120033740 Robust digital communication system
02/09/2012US20120033726 Decision feedback equalizer, receiving circuit, and decision feedback equalization processing method
02/09/2012US20120033725 Signal processing system and method for calibrating channel signals supplied from an array of sensors having different operating characteristics
02/09/2012US20120033724 Method and system for selective equalization enablement based on modulation type
02/09/2012US20120033722 Time-Domain Link Adaptation
02/09/2012US20120033721 Receiver with ICI Noise Estimation
02/09/2012US20120033719 Transmitter and control method for transmitting and calibrating a phase signal and an amplitude signal
02/09/2012US20120032736 Modulator, demodulator and modulator-demodulator
02/09/2012CA2806337A1 System and method for joint voice and data transmission
02/08/2012EP2416616A1 Radio communication system, transmission device, reception device, and radio communication method in radio communication system
02/08/2012EP2416511A1 SRS (Sounding Reference Signals) reception
02/08/2012EP2415305A1 Methods and arrangements in a telecommunication system
02/08/2012EP2415225A1 Transmission method and device with symbol time-frequency mapping in sub-channels
02/08/2012EP2415173A1 Method for mixing a complex digital signal with a reference signal, mixer and digital-to-analogue converter using the method
02/08/2012EP2329630B1 OFDM frame synchronisation method and system
02/08/2012EP2215790B1 A method to discriminate a real echo peak from an aliased echo peak
02/08/2012EP2158736B1 OFDM-MIMO radio frequency transmission system
02/08/2012EP2153606B1 Selection of root indices in polyphase Cazac sequences
02/08/2012EP2153602B1 Method for allocating resources in an OFDM network
02/08/2012CN1954573B 在正交频分多址通信系统中发送上行链路确认信息的方法和设备 Methods and apparatus for transmitting an uplink orthogonal frequency division multiple access communication system acknowledgment information
02/08/2012CN1835430B 移动通信终端 The mobile communication terminal
02/08/2012CN102349275A Carrier timing for wireless communications systems
02/08/2012CN102349262A Wideband phase modulator
02/08/2012CN102349256A Apparatus and method for providing venuecast services on a next generation forward link only (FLO) network
02/08/2012CN102349243A Data transmission method and apparatus in multiple antenna system
02/08/2012CN102349240A Method and apparatus for transmitting control information for interference mitigation in multiple antenna system
02/08/2012CN102347927A Method and device for increasing EVM (Error Vector Magnitude) measurement precision for LTE (Long Term Evolution) system
02/08/2012CN102347926A Carrier frequency capturing method and device
02/08/2012CN102347925A Synchronization symbol detection method and apparatus thereof
02/08/2012CN102347924A Frequency offset estimation and timing method and device
02/08/2012CN102347923A Cross-phase modulation damage compensation device and method thereof
02/08/2012CN102347922A Reconfigurable wireless modem adapter
02/08/2012CN102347919A Blind detection method
02/08/2012CN102347868A Relative time delay measurement method for broadband orthogonal frequency division multiplexing (OFDM) system
02/08/2012CN102347799A Method and device for phase-locked forwarding of multi-frequency modulation laser
02/08/2012CN102347740A Radio apparatus carrying out automatic gain control
02/08/2012CN101795372B 频偏小于二分之一符码率的频道获取方法及频道获取装置 Deviation is less than half the symbol rate of the channel and channel acquisition means acquisition method
02/08/2012CN101784119B Ofdma分布式天线网络资源的分配方法 Allocation method Ofdma distributed antenna network resources
02/08/2012CN101702827B Toa定位的估计方法及基于该估计方法的精确定位方法 Toa estimation methods and pinpoint positioning method is based on the estimation method
02/08/2012CN101692664B 一种采用非连续载波干涉码的多载波无线传输方法 A multicarrier wireless transmission method using a non-continuous carrier interference code
02/08/2012CN101674186B 多播业务与单播业务的复用方法及装置 Multiplexing method and apparatus for multicast traffic and unicast traffic
02/08/2012CN101656701B 确定ofdm码元起始位置的方法及装置 Determine the starting position ofdm symbol method and apparatus
02/08/2012CN101518008B 用于使用基于符号的随机化正交频分多路复用(ofdm)传送数据的系统和方法 Based randomization for orthogonal frequency division multiplexing symbol (ofdm) system and method for transmitting data