Match Document Document Title
9337998 Method for improving synchronization and information transmission in a communication system  
A method is provided for improving synchronization and information transmission in a communication system, including: generating a signal with a centrally symmetric part s(k) exploitable for...
9042471 Receiving device, signal processing device, and signal processing method  
A receiving device according to the present invention includes: a receiver for receiving an OFDM symbol that is modulated by phase shift keying; an FFT processor for applying an FFT process to the...
9042469 Receiver and receiving method for a combinerless LINC OFDM system  
A receiver and a receiving method for use in a LINC OFDM system are provided. The receiver receives a signal from a transmitter of the combinerless LINC OFDM system, generates a CP removed signal...
9042479 Method and apparatus for avoiding interference between coexisting wireless systems  
Apparatuses and methods for avoiding interference between wireless systems are described herein. One embodiment of the disclosure provides an apparatus for avoiding interference between at least...
9042474 Method and apparatus for information feedback and precoding  
Methods and apparatuses for information feedback and precoding have been provided. A method for processing communication data at a user equipment in a wireless communication system may comprise:...
9042470 Measurement method and apparatus  
The disclosure discloses a measurement method. The method includes: a conjugate multiplication operation is performed on reference signals corresponding to a subcarrier within adjacent time slots...
9042468 Channel estimation technique  
A method includes determining a sequence of first coefficient estimates of a communication channel based on a sequence of pilots arranged according to a known pilot pattern and based on a receive...
9042487 Blind I/Q mismatch compensation with receiver non-linearity  
Apparatus and methods disclosed herein perform gain, clipping, and phase compensation in the presence of I/Q mismatch in quadrature RF receivers. Gain and phase mismatch are exacerbated by...
9042480 Precoding codebook design for single user MIMO  
A transmitter is for use with multiple transmit antennas and includes a precoder unit configured to precode data for a transmission using a precoding matrix selected from a codebook, wherein the...
9042467 Method to increase signal-to-noise ratio of a cyclic-prefix orthogonal frequency-division multiplex signal  
A method to decode an orthogonal frequency-division multiplex (OFDM) signal data block that includes symbol-data in a data interval, repeated-data in a cyclic-prefix (CP) guard interval, and...
9042888 Mobile device network signaling management  
A mobile wireless device maintains a radio sector database. When receiving no response or a negative response from a radio sector to a transmitted signaling message, the mobile wireless device...
9036723 Full-range pilot-assisted frequency offset estimation for OFDM communication systems  
A training symbol with two identical halves as well as a pilot-tone at a center frequency is used for both timing synchronization and carrier frequency offset estimation. A timing synchronization...
9036726 Method and a device for increasing the amount of information bits comprised in a symbol  
A method for increasing the amount of information bits comprised in a symbol transferred by a source to at least one receiver. The symbol is representative of a modulated base sequence obtained by...
9036459 Rectangular power spectral densities of orthogonal functions  
In this application, a set of orthogonal functions is introduced whose power spectral densities are all rectangular shape. To find the orthogonal function set, it was considered that their...
9036684 Spatially randomized pilot symbol transmission methods, systems and devices for multiple input/multiple output (MIMO) wireless communications  
Compressive sampling is used to generate pilot symbols to be transmitted over an array of antennas in a MIMO wireless communications device. A pilot symbol is transmitted over the array of...
9036727 Method of generating a codebook  
A precoding codebook matrix/vector of length 2L is generated by the selection of two matrices/vectors, each from one of a predetermined set of L×L matrices and multiplying each column of one of...
9036722 Robust channel estimation and interpolation  
Present robust 2 Dimensional Minimum Mean Square Error (2D-MMSE) or minimax approach assumes significant time and frequency selectivity due to which it has a poor Mean Square Error (MSE)...
9037750 Methods and apparatus for data exchange in peer to peer communications  
An exemplary wireless communications device comprises a processor coupled to a memory and a wireless communications interface. The processor is configured to transmit a first transmission symbol...
9036720 Systems and methods for transmitting and receiving additional data over legacy satellite digital audio radio signals  
Systems and methods for transmitting and receiving additional data, such as video data, over legacy satellite digital audio radio signals are provided. In exemplary embodiments, hierarchical...
9036593 Communications apparatus and communications system using multicarrier transmission mode  
A base station in a communications system for exchange of information, includes, a transmission data generator configured to generate frequency band information indicating which frequency band is...
9036999 Frame/symbol synchronization in coherent optical OFDM  
One aspect provides an optical communication system. The system includes an optical-to-digital converter, a frequency estimator and a symbol synchronizer. The optical-to-digital converter is...
9037093 Method and system for diversity using orthogonal frequency/division multiplexing  
A method and system for achieving a link budget improvement in a diverse OFDM radio system by addressing the timing misalignment issue that can occur due to the differences in propagation time in...
9036724 Data signal correction circuit, receiver, and data signal correction method  
A data signal correction circuit includes a channel characteristic calculator unit configured to calculate a channel characteristic estimate value of a received data signal on the basis of a pilot...
9036538 Frequency hopping design for single carrier FDMA systems  
Systems and methodologies are described that facilitate frequency hopping in a single carrier FDMA wireless environment by dynamically altering user offsets with time to obtain interference...
9036721 Wireless communication method for magnetic field communication network and demodulation device of coordinator  
Disclosed herein is a wireless communication method for a magnetic field communication network. The wireless communication method is performed by a coordinator on the magnetic field communication...
9036725 Method for adjusting FFT window of OFDM system  
Disclosed is a method for adjusting FFT window of OFDM system. The method is categorized two scenarios when the maximum delay length of the channel is shorter than the guard interval length and...
9036733 Method of reducing signal imbalance in wireless communication system  
Multiplier coefficients are updated according to minimal power value of mixed signals in a wireless communication system. While using updated multiplier parameters, signal imbalance caused by a...
9031123 Communication system and method using subspace interference cancellation  
A receiver performs interference mitigation under blind or semi-blind conditions using diversity present in the signal of interest or in the interferer. A first path interference mitigation...
9031008 Methods and apparatus for multi-user MIMO transmissions in wireless communication systems  
A wireless communication system includes a base station capable of communicating with a plurality of subscriber stations. The base station can transmit control information and data to a subscriber...
9031149 Precoding method and apparatus  
A transmit node receives a transformed correlation matrix or a correlation matrix of a channel coefficient matrix, or a correlation matrix of an interference channel coefficient matrix from each...
9031154 OFDM modulator, OFDM transmission device, and OFDM modulation method  
A transmission device 100 has an inverse fast Fourier transform converter 104 (first circuit) that acquires plural multi-value symbol data each of which is assigned to a dedicated subcarrier, and...
9031144 Peak factor reduction device and wireless transmitter  
To satisfy the required SNR values for each system and/or each channel, a peak factor reduction device for reducing peak components included in a transmission signal, generates a cancellation...
9031173 Receiving apparatus and method  
A receiving apparatus for receiving signals in a transmission system transmitted based on a frame structure including signaling data and payload data. The receiving apparatus includes a receiver...
9031143 Adaptive decoding based on signal to noise ratio (SNR)  
A communication device is configured adaptively to process a receive signal based on noise that may have adversely affected the signal during transition via communication channel. The device may...
9031141 Modulation and equalization in an orthonormal time-frequency shifting communications system  
A method for modulating data for transmission within a communication system. The method includes establishing a time-frequency shifting matrix of dimension N×N, wherein N is greater than one. The...
9031155 Method and apparatus for sending signals  
A method and an apparatus for sending signals to suppress outband interference effectively in a simple way includes: grouping subcarriers in a spectrum into edge subcarriers of the spectrum and...
9031152 Communication apparatus and communication method  
A communication level table storage unit stores a communication level table that defines correspondence between a communication level at least defined by MCS (modulation scheme and coding rate)...
9031142 Digital up converter  
A method that includes providing to multiple inverse fast Fourier transform (IFFT) and polyphase circuits multiple baseband channels so that different IFFT and polyphase circuits receive different...
9025684 Method for generating and transmitting a reference signal for uplink demodulation in a clustered DFT-spread OFDM transmission scheme  
Disclosed is a method for generating and transmitting a reference signal in a clustered DFT-spread OFDM transmission scheme. A method for generating and transmitting a DM-RS in a clustered...
9025681 Modulation of signal field in a WLAN frame header  
A plurality of training fields of a preamble of a physical layer data unit are generated, and training fields of the plurality of training fields are mapped to respective signal streams of a...
9025696 Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor  
A method for transmitting a sounding reference signal from a user equipment in a MIMO antenna wireless communication system. The method includes receiving sounding reference signal setup...
9025674 Method for reconstructing digital video data stream and apparatus thereof  
An apparatus for reconstructing digital video data stream reconstructs a transport stream from a first data stream and a second data stream. Both of the first data stream and the second data...
9025641 Distributed transmission involving cooperation between a transmitter and a relay  
The present invention provides, in one embodiment, a method of transmitting a message. The method includes transmitting a first codeword from a transmitter to a relay. The method also includes...
9025682 Method and apparatus for downlink resource allocation in an orthogonal frequency division multiplexing communication system  
A communication is provided that schedules both Distributed Virtual Resource Blocks (DVRB) and Localized Virtual Resource Blocks (LVRB) in a same frequency channel, thereby obtaining the benefits...
9025686 Method, radio unit and radio base station for adjusting thresholds for crest factor reduction  
The present invention relates to clipping thresholds adjustment for Crest Factor Reduction CFR in a radio unit, wherein the radio unit comprises one or more clipping stages that apply respective...
9025680 Encoding information in beacon signals  
Systems and methodologies are described that facilitate transmitting at least two different types of information in a single signal, whereby the different types of information can be encoded and...
9025683 Channel state information transmission method appraratus and system  
A precoding method, a precoding apparatus, a Frequency Domain Equalization (FDE) method, and an FDE apparatus are provided in the embodiments of the present invention. The precoding method...
9025685 Method and apparatus for selecting modulation and coding scheme (MCS) index based on frequency selectivity  
A method of selecting a modulation and coding scheme (MCS) index in a wireless communication system is disclosed. More specifically, the method includes measuring a frequency selectivity of a...
9025704 Methods and apparatus for generating demodulation candidates using vector candidate sampling (VCS)  
Certain aspects of the present disclosure relate to techniques for generating likely demodulation candidates using Vector Candidate Sampling (VCS). VCS is used to generate high likelihood...
9025650 Multiple receivers in an OFDM/OFDMA communication system  
A signal receiver is configured to receive multiple time-domain input signals. A plurality of the input signals among the multiple time-domain input signals is selected and transformed into...