Match Document Document Title
US20110150112 Remote transmit IQ imbalance calibration and correction at multicarrier receivers  
Transmit IQ imbalance is calibrated and compensated for within a receiver. In at least one embodiment, a Multimedia over Coax Alliance (MoCA) Type II probe signal is transmitted from the...
US20110176623 MATRIX POWER AMPLIFIERS FOR HIGH SPEED WIRELESS APPLICATIONS  
A wireless communication device includes an RF transceiver configured to up convert a base band signal to a transmitting RF signal, a configurable matrix power amplifier circuit configured to...
US20090067371 Gateway equipped with a multi-antenna transceiver system with MISO architecture for WI-FI communications  
There is described a gateway including an electronic card (4) and a multi-antenna system integrated in the electronic card for transmitting/receiving radiofrequency signals from and to a Wi-Fi...
US20100215108 Ranking and Grouping of Transmissions in Communication System  
Improved ranking and grouping techniques are disclosed for communication systems such as a multiple input multiple output system. For instance, techniques are disclosed for ranking and grouping...
US20120288021 SECONDARY TRANSMITTER INCLUDED IN COGNITIVE RADIO COMMUNICATION SYSTEM AND COMMUNICATION METHOD OF THE SECONDARY TRANSMITTER  
Provided is a communication method of a secondary transmitter included in a multiple-antenna based multiple input multiple output (MIMO) cognitive radio communication system, the method including:...
US20090323664 METHOD FOR TRANSMITTING A SOUNDING REFERENCE SIGNAL IN A LTE TDD SYSTEM  
A method for transmitting an uplink Sounding Reference Signal (SRS) by a Long Term Evolution (LTE) User Equipment (UE). The UE receives information indicating an SRS transmission, generates an...
US20120213300 WIRELESS COMMUNICATION SYSTEM, WIRELESS COMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD  
A wireless communication system which performs data transmission using spatially multiplexed streams from a first terminal including N antennas to a second terminal including M antennas (N is an...
US20110194632 MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION METHOD AND SYSTEM EXCHANGING COORDINATED RANK INFORMATION FOR NEIGHBOR CELL  
Provided is a multiple input multiple output (MIMO) communication method and system that may exchange information associated with a coordinated rank for a neighbor cell. In a MIMO communication...
US20110051618 ADAPTIVE TIME-FILTERING FOR CHANNEL ESTIMATION IN OFDM SYSTEM  
Time filtering channel estimates in a wireless communication system, such as an Orthogonal Frequency Division Multiplex (OFDM) system, can be used to improve the quality of channel estimates. The...
US20110116561 MONITORING AND CORRECTING TIMING ERRORS IN WIRELESS COMMUNICATION  
Providing for improved tracking and correction of timing in wireless communications is disclosed herein. By way of example, a first algorithm can be employed to track timing of a wireless signal,...
US20100054114 MIMO beamforming method and method of constructing a differential codebook for a wireless network  
A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information...
US20090316805 ENERGY-EFFICIENT LINK ADAPTATION AND RESOURCE ALLOCATION FOR WIRELESS OFDMA SYSTEMS  
An energy-efficient framework for active transmission in OFDMA-based long-range wireless networks is disclosed. This frame-work is based on using energy-aware metrics for resource allocation and...
US20130279615 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...
US20090207793 ACKNAK Repetition Schemes in Wireless Networks  
ACK/NAK repetition may be necessary to provide sufficient coverage for cell edge UEs. For a coverage limited UE, a NodeB may inform the UE that ACK/NAK repetition is needed. Such information can...
US20090225883 Analog Beamforming to Reduce Interference in Wimax Networks  
A base station transmits a set of sounding requests to a set of mobile station (MS) in a cell, using a set of beams, wherein there is one beam for each sounding request. Qualities of sounding...
US20090262695 RANK AND PMI IN DOWNLOAD CONTROL SIGNALING FOR UPLINK SINGLE-USER MIMO (UL SU-MIMO)  
A method of operating a user equipment device includes extracting at least one rank indicator (RI) from an uplink grant, and adapting a transmission rank in response to said RI. At least two...
US20110255619 METHOD AND SYSTEM FOR MAPPING UPLINK CONTROL INFORMATION  
A base station is provided. The base station includes a transmit path circuitry to transmit an uplink grant to a subscriber station, the uplink grant indicating a first modulation and coding...
US20090268831 BACKWARD COMPATIBLE BANDWIDTH EXTENSION  
A transmitter includes a bandwidth configuration unit configured to provide an increased system bandwidth corresponding to a bandwidth extension over multiple component carriers. Additionally, the...
US20110129023 WIRELESS RANGING SYSTEM AND RELATED METHODS  
A wireless ranging system for determining a range of a remote wireless device may include a wireless transmitter and a wireless receiver. The wireless ranging system may also include a ranging...
US20130235946 PILOT DESIGN FOR IMPROVED CHANNEL AND INTERFERENCE ESTIMATION  
Techniques for transmitting pilot and for processing received pilot to obtain channel and interference estimates are described. A terminal may generate pilot symbols for a first cluster in a time...
US20060239372 Reduced feedback for beamforming in a wireless communication  
A method for reduced feedback for beamforming in a wireless communication begins by receiving a baseband signal. The method continues by digitally beamforming the baseband signal using a unitary...
US20150131749 ENHANCED RECEIVER CONFIGURATION ADAPTIVE TO CYCLIC PREFIX CONFIGURATION  
A method in a first radio node is described for adapting a receiver type in the first radio node. The first radio node includes a first and a second receiver types. The first radio node is...
US20130044831 POWER ALLOCATION FOR OVERLAPPING TRANSMISSION WHEN MULTIPLE TIMING ADVANCES ARE USED  
A method and apparatus for power allocation for overlapping transmissions is provided herein. During operation, user equipment will determine if transmissions to a single base station, on various...
US20120263245 METHOD OF CHANNEL ESTIMATION AND A CHANNEL ESTIMATOR  
The method includes receiving a signal comprising a symbol-carrier matrix, the symbol-carrier matrix including a predetermined pattern of pilot symbols, and determining first channel estimates at...
US20110228683 RADIO COMMUNICATION METHOD, RADIO COMMUNICATION DEVICE, RADIO COMMUNICATION PROGRAM, AND RADIO COMMUNICATION SYSTEM  
In cooperative sensing in which a plurality of cognitive radio apparatus collaboratively exchange sensing information on a status of frequency band usage as a secondary system, the sensing...
US20110268204 MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION SYSTEM OF SUPPORTING SEVERAL REPORTING MODES  
A plurality of reporting modes used to report feedback information is provided. A transmitter and a receiver generate and share feedback information based on a corresponding reporting mode.
US20120230443 MU-MIMO TRANSMISSION METHOD IN WIRELESS LAN SYSTEM  
A Multi-User-Multiple Input Multiple Output (MU-MIMO) transmission method performed by an AP in a Wireless Local Area Network (WLAN) system is provided. The method includes transmitting an MU-MIMO...
US20110310989 Radio Communication Device and Radio Communication Method  
A radio base station 100 judges a receiving state of a radio signal in conformity with the orthogonal frequency division multiplexing scheme, and changes a symbol string configuration of a symbol...
US20100061433 METHOD FOR TRANSMITTING A SIGNAL VIA A POWER LINE NETWORK, TRANSMITTER, RECEIVER, POWER LINE COMMUNICATION MODEM AND POWER LINE COMMUNICATION SYSTEM  
A method for transmitting signals over a power line network, wherein within the power line network at least one transmitter and at least one receiver communicate via at least two channels, each...
US20130064280 DIGITAL BROADCASTING TRANSMITTER, DIGITAL BROADCASTING RECEIVER, AND STREAM CONFIGURATION AND METHOD FOR PROCESSING SAME  
Provided are a digital broadcast transmitter, a digital broadcast receiver, a stream-processing method for the digital broadcasting transmitter, and a stream-processing method for the digital...
US20120033754 OFDM CHANNEL ESTIMATION METHOD AND APPARATUS  
Smaller patterns of regularly-spaced pilot symbols are discerned from a larger pattern of irregularly-spaced pilot symbols transmitted in the time-frequency domain. Accordingly, the...
US20110043340 Concatenated Repetition Code with Convolutional Code  
A system and method for modulating and coding a signal is disclosed. Data from a Media Access Control (MAC) layer is convolutionally encoded. Robust coding of the data from the MAC layer is...
US20100118743 METHOD, SYSTEM, BASE STATION AND TERMINAL FOR PROCESSING THE REFERENCE SYMBOL  
A method, system, base station and terminal for processing the reference symbol can support to transfer the common reference symbol and the user dedicated reference symbol synchronously. In the...
US20120076223 Method and System for an Alternating Delta Quantizer for Limited Feedback MIMO Pre-Coders  
Aspects of a method and system for an alternating delta quantizer for limited feedback MIMO pre-coders may comprise quantizing a change in channel state information in a MIMO pre-coding system...
US20090225875 WIRELESS COMMUNICATION METHOD, WIRELESS TRANSMITTER AND WIRELESS RECEIVER  
A wireless communication method by which unnecessary retransmission request is suppressed and feedback information is reduced at the same time in a MIMO communication system. The wireless...
US20110116565 Method and Apparatus for Preamble Training with Shortened Long Training Field in a Multiple Antenna Communication System  
Methods and apparatus are provided for communicating data in a multiple antenna communication system having N transmit antennas. According to one aspect of the invention, a header format includes...
US20100329370 Selection of a Subset of Antennas for Transmission  
A method and apparatus of a subscriber station selecting a subset of a plurality of antennas for uplink transmission are disclosed. One method includes a base station transmitting a cyclic delay...
US20100074309 PHASE SHIFT BASED PRECODING METHOD AND TRANSCEIVER FOR SUPPORTING THE SAME  
A method of transmitting data using a generalized phase shift based precoding or an extended phase shift precoding scheme in a multiple-antenna system using a plurality of subcarrier and a...
US20060146949 Multicarrier communication system and methods for communicating with subscriber stations of different bandwidth profiles  
A multicarrier base station communicates with subscriber stations of different bandwidth profiles by allocating time slots in downlink and uplink frames and subcarriers of a single multicarrier...
US20140205028 OFDM Clock Recovery  
Receiver synchronization techniques (RST), contributing more accurate synchronization of receiver clock to OFDM composite frame combined with much faster acquisition time and better stability of...
US20090207949 TRANSMITTER IDENTIFICATION INFORMATION SIGNAL DETECTION APPARATUS AND METHOD  
A transmitter identification information (TII) signal detection circuit is suitable for an orthogonal frequency division modulation system. A TII signal detection circuit receives a TII signal and...
US20110081863 Phase-Lock in All-Digital Phase-Locked Loops  
This disclosure relates to an all digital phase-lock loop (ADPLL). The ADPLL determines an error generated by a digitally controlled oscillator (DCO) which is operated using a tuning word, stores...
US20090041135 NULL DETECTION IN DAB, T-DMB, AND DAB-IP SYSTEMS  
Detecting Null symbols in a video data frame comprises sending OFDM symbols through a sliding windowed correlation process having a correlation window length proportional to a cyclic prefix length...
US20110274186 PEAK-TO-AVERAGE POWER RATIO REDUCTION METHOD FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEMS BASED ON PATH FINDING  
In a peak-to-average power ratio (PAPR) reduction method for an orthogonal frequency division multiplexing (OFDM) system based on path finding, the method applied to the OFDM system uses an ant...
US20150092871 APPARATUS AND METHOD OF ESTIMATING CHANNEL IN CONSIDERATION OF RESIDUAL SYNCHRONIZATION OFFSET  
Disclosed herein are an apparatus and a method of estimating a channel in consideration of a residual synchronization offset. The apparatus of estimating a channel in consideration of a residual...
US20100309868 MIMO OFDMA AND PREAMBLE DESIGN  
A method is provided for coupling a plurality of access nodes wirelessly to a plurality of access terminals. The method includes dividing up a carrier frequency into a plurality of subbands;...
US20110149875 METHOD AND APPARATUS FOR ENSURING ACCESS IN A COMMUNICATION SYSTEM FOR A PLURALITY OF GROUPS  
A method and apparatus for bandwidth brokering in a communication system (100) defines groups (212) and a bandwidth allocation for each group at a given base station (202). Each group has a...
US20100316150 Mixed mode operations within multiple user, multiple access, and/or MIMO wireless communications  
Mixed mode operations within multiple user, multiple access, and/or MIMO wireless communications. Certain communication systems can include wireless communication devices of various capabilities...
US20140269958 UPLINK POWER CONTROL FOR DISTRIBUTED WIRELESS COMMUNICATION  
A method and apparatus for power control for distributed wireless communication is disclosed including one or more power control loops associated with a wireless transmit/receive unit (WTRU). Each...
US20090034636 Feedback scheduling to reduce feedback rates in MIMO systems  
In a closed-loop wireless communication system, a codebook-based feedback control mechanism is provided where feedback from each of a plurality of receivers is scheduled to control the feedback so...