Sign up


Match Document Document Title
8548086 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...
8548083 Method and apparatus for mapping/demapping resource in wireless communication system  
A method and apparatus for mapping/demapping a resource efficiently in a wireless communication system are provided. A resource mapping method of a transmitter in a wireless communication system...
8542759 Method for transmitting a signal from a transmitter to a receiver in a power line communication network, transmitter, receiver, power line communication modem and power line communication system  
A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an...
8542763 Systems and methods to coordinate transmissions in distributed wireless systems via user clustering  
Systems and methods are described for coordinating transmissions in distributed wireless systems via user clustering. For example, a method according to one embodiment of the invention comprises:...
8543076 Adaptive use of multiple receive chains in wireless communication terminals  
A wireless communication device is adaptively operated in a wireless communication network. The wireless communication device includes a receiver subsystem having a total number of available...
8542776 Apparatus and method for transmitting/receiving data in a multi-antenna system, and system using the same  
A closed-loop multi-antenna system and method thereof are provided. A transmitter includes a feedback information processor and a first transmit unit. A receiver includes a channel estimator, a...
8542757 Efficient CQI signaling in MIMO systems with variable numbers of beams  
The present invention relates to the signaling of channel quality information in a multi-beam transmission system, wherein a plurality of sets of channel quality information are transmitted for...
8542765 Hierarchical coding with multiple antennas in a wireless communication system  
Techniques are provided for performing hierarchical coding in a multi-antenna communication system (e.g., a SIMO, MISO, or MIMO system). At a transmitter, a base stream and an enhancement stream...
8537912 Extremely high speed broadband access over copper pairs  
Disclosed is an apparatus that includes a plurality of parallel digital signal transmitters that each receive one of a plurality of digital sub-signals wherein each of the plurality of digital...
8537943 Sum and forward Elam receiver  
A method for receiving signals in a receiver having a plurality of receive elements may include a transmitted signal in a plurality of receive elements to form a plurality of receive element...
8537924 Open loop precoder cycling in MIMO communications  
Data is transmitted over multiple input multiple output (MIMO) channels. Plural bit streams are modulated into multiple data symbol vectors. Each vector has a transmission rank with one vector for...
8537915 Pilot design for wireless system  
The description herein relates to pilot designs for an Orthogonal Frequency Division Multiplexing (OFDM) based communication system. In the preferred embodiment, the communication system is one...
8537936 Channel quality estimation from raw bit error rate  
Channel quality metrics (such as SINR, BLER, and the like) are derived from a raw bit error rate (RBER), defined as the error rate of raw bits output by a demodulator. These initial raw bits are...
8537911 Method and apparatus for reference signal processing in an orthogonal frequency division multiplexing communication system  
A wireless communication includes a base station that configures a set of non-zero power reference signals corresponding to multiple potential transmission points to one or more users equipment UEs...
8532019 Method and system for implementing a single weight (SW) single channel (SC) MIMO system  
Methods and systems for processing signals in a receiver are disclosed herein and may comprise generating at least one control signal that may be utilized to control a first received signal. A...
8532589 Beam-hopping in a radio communications system  
A radio communications system has at least one base station and subscriber station. To transmit messages to a subscriber stations, the base station uses successive emission directions that differ...
8532210 Method and apparatus for implementing space frequency block coding in an orthogonal frequency division multiplexing wireless communication system  
The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication...
8532569 Wireless communication system, wireless communication apparatus, and wireless communication method  
A wireless communication system is disclosed. The wireless communication system performs data transmission using spatially multiplexed streams from a first terminal including N antennas to a second...
8532238 Subsampling based receiver using frequency selective noise canceller  
Provided is a frequency selective noise canceller including: a frequency selective single to differential converter having a band pass filter function, converting a received single input signal...
8532239 Method for error compensation in an OFDM system with diversity  
A method provides for an improved compensation of Fourier channel characteristics in a wireless communication embodiment. The method identifies one or more information carriers as pseudo pilot...
8532226 EHF wireless communication receiver using beamforming with a scalable number of antenna paths  
The invention relates to a EHF wireless communication receiver comprising a phased array radio arranged for receiving a beam of signals in a predetermined frequency band. The phased array radio...
8532212 Wireless communication system, wireless communication device, wireless communication method and computer program  
There is provided a wireless communication system, including a first terminal equipped with N antennas, N being an integer of at least two, a second terminal equipped with M antennas, M being an...
8526528 Beamforming in MIMO communication systems  
A communication terminal includes first and second transmitters, which are coupled to produce respective first and second Radio Frequency (RF) signals that are phase-shifted with respect to one...
8526527 Radio communication apparatus and radio communication method  
A radio communication apparatus and an associated method are provided. The apparatus includes a receiving unit configured to receive first data and second data, which are transmitted from a...
8526412 Frequency division multiplexing of multiple data streams in a wireless multi-carrier communication system  
Techniques for multiplexing multiple data streams using frequency division multiplexing (FDM) in an OFDM system are described. M disjoint “interlaces” are formed with U usable subbands. Each int...
8526296 Signal separation device and signal separating method  
A signal separation device includes a column switching unit switching a column vector of a channel matrix obtained by estimating a propagation path characteristic so that a transmitted signal...
8526542 Diversity receiver for processing VSB signal  
A diversity receiver configured to receive digital signals, including a first modulator configured to receive a first signal and modulate the first signal to first data, a second modulator...
8526517 Blind SLM and PTS method with low decoding complexity of OFDM signals  
Disclosed is a BSLM method of generating U independent alternative symbol sequences by changing a phase of symbol sequences by phase sequences and transmitting the alternative symbol sequences with...
8520762 Robust linear precoder designs for multi-cell downlink transmission  
Methods and systems for optimizing the utilities of receiver devices in a wireless communication network are disclosed. Precoder design formulations that maximize a minimum worst-case rate or a...
8520754 Reception apparatus and method, program and reception system  
Disclosed herein is a reception apparatus, including: a reception section adapted to receive an OFDM (Orthogonal Frequency Division Multiplexing) signal obtained by modulating a first frame...
8520784 Coherent beam combining of independently faded signals  
An adaptive beam steering control system suitable for multiple element systems is provided for coherently forming a beam and tracking a dynamic scenario of a rapidly fading environment. The...
8520783 Receiving device  
A receiving device includes: a receiver that receives frequency multiplex signal; a first Fourier transformation unit that transforms the received frequency multiplex signal to frequency domain...
8520778 System and method for estimation and correction of carrier frequency offset in MIMO-OFDM based wireless communications systems  
This invention relates to a Multi-Input Multi-Output Orthogonal Frequency Divisional Multiplexing (MIMO-OFDM) is a transmission technology for many current and next generation wireless...
8520763 Robust linear precoder designs for multi-cell downlink transmission  
Methods and systems for optimizing the utilities of receiver devices in a wireless communication network are disclosed. Precoder design formulations that maximize a minimum worst-case rate or a...
8520746 Maximum ratio transmission  
An arrangement where a transmitter has a plurality of transmitting antennas that concurrently transmit the same symbol, and where the signal delivered to each transmitting antenna is weighted by a...
8520755 Channel quality determination of a wireless communication channel based on received data  
The invention refers to a method of determining a channel quality of a communication channel between a wireless transmitter and a wireless receiver, comprising receiving a transport block with one...
8520720 Spread spectrum communication system, clear channel assessment device and related method  
A spread spectrum communication system includes a first and a second antenna, a first and a second radio frequency demodulator, a first and a second analog-to-digital converter, a first and a...
8514954 Pilot design for wireless system  
The description herein relates to pilot designs for an Orthogonal Frequency Division Multiplexing (OFDM) based communication system. In the preferred embodiment, the communication system is one...
8514914 IQ imbalance correction method in a wireless communication device including a quadrature modulation/demodulation function  
An IQ imbalance correction method includes transmitting a plurality of pairs of RF training signals in installments by pairing RF training signals symmetric with respect to a center frequency on a...
8514961 Method and apparatus for distributed space-time coding in wireless radio networks  
A method and apparatus is disclosed herein for performing distributed space-time coding. In one embodiment, the distributed space-time coding is used for downlink communications in wireless radio...
8514976 Method and apparatus for coding and interleaving for very high throughput wireless communications  
A wireless transmitter can include a plurality of bandwidth modules, each bandwidth module processing data based on a predetermined frequency band. In one embodiment, such a wireless transmitter...
8514975 Method and apparatus for transmitting reference signal in wireless communication system  
A method and an apparatus for transmitting a reference signal in a wireless communication system are provided. The method includes generating a first sequence and a second sequence, mapping the...
8514693 Broadcast and multicast in single frequency networks using othrogonal space-time codes  
In one embodiment, a method of transmitting includes assigning column vectors of a generalized orthogonal space time code matrix to coverage areas of a plurality of base stations such that each...
8509338 Method and precoder information feedback in multi-antenna wireless communication systems  
A method for two component feedback in wireless communication systems is disclosed, with a wireless communication device sending a first representation of a first matrix chosen from a first...
8509329 Data receiving apparatus for receiving data frame using constellation mapping scheme and data transmission apparatus for transmitting the date frame  
Disclosed are a data receiving apparatus that may discriminate a type of a received data frame, and a data transmission apparatus that may apply a constellation mapping scheme to a data frame so...
8509366 Method, apparatus and computer program for calculating a noise covariance estimate  
A final NOCE (noise covariance estimate) for reducing noise in a first channel of a receiver with a plurality of antennas is calculated. A first raw NOCE for the first channel is calculated,...
8509352 Integer spreading rotation matrices for QAM constellations and its decode-remodulate-forward cooperative communication strategy  
Diversity techniques are commonly used in wireless communications to combat multipath fading. Recent interests in ultra-wideband technology focus on multi-band OFDM systems that can explore the...
8509705 Differential closed-loop transmission feedback in wireless communication systems  
A method and apparatus for providing channel feedback is provided herein. During operation a covariance matrix at time t (R) is calculated as a function of a received downlink signal. Matrix Ct is...
8509333 Method for transmitting a signal from a transmitter to a receiver in a power line communication network, transmitter, receiver, power line communication modem and power line communication system  
A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an...
8509339 Reference signaling scheme using compressed feedforward codebooks for multi-user multiple input multiple output (MU-MIMO) systems  
A multi-user multiple input multiple output (MIMO) downlink beamforming system with limited feed forward (200) is provided to enable precoding matrix information to be efficiently provided to a...