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US20120039407 CHANNEL SELECTION FOR CARRIER AGGREGATION  
Channel selection for LTE-Advanced, or other, carrier aggregation can be performed by a method, apparatus, or computer-readable medium. According to certain embodiments, a method can include...
US20110002404 ROTATING REFERENCE CODEBOOK THAT IS USED IN A MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) COMMUNICATION SYSTEM  
A rotating reference codebook used in a multiple input multiple output (MIMO) communication system is provided. The reference codebook includes codewords from a discrete Fourier transform (DFT)...
US20090086838 WIRELESS TRANSMITTER  
A wireless transmitter includes: a plurality of transmission antennas; and a phase rotating unit which adds phase rotation to signals which are respectively input to the plurality of transmission...
US20090196361 NON-BINARY SOURCE-TO-CHANNEL SYMBOL MAPPINGS WITH MINIMIZED DISTORTION  
System and methodologies for low-distortion index assignment for quantization are provided herein. Various aspects described herein utilize a graph theoretic approach for determining an index...
US20080123592 TWO-DIMENSIONAL PILOT PATTERNS  
The present invention relates to a method for generating, in a multiple access communication system, two-dimensional pilot signal patterns for propagation channel estimation in time and frequency,...
US20060056525 Computationally efficient protocols for VDSL system  
Techniques which reduce the computational burden of the IFFT/FFT section of a DSL data transmission/reception apparatus, taking into account the nature of conventional IFFT/FFT algorithms. These...
US20090196229 ACKNAK and CQI Channel Mapping Schemes in Wireless Networks  
A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations. The transmission from the secondary to primary node in a wireless network is...
US20080310533 Mega-frame Initialization Packet Generation and Synchronous Re-generation with Bit Rate Adaptation for Single Frequency Networks with Multiple Modulation Schemes  
A system and processes create a Mega-frame Initialization Packet such that remote MIP inserters can regenerate Transport Stream bit rate and MIPs for Single Frequency Networks with modulation...
US20080063095 Rate Control with Imperfect Feedback  
A transmitting station divides an information block intended for a receiving station into a plurality of subsets and codes each subset of said information block at a different coding rate to...
US20120189039 Method of Controlling a Communications Link  
The present invention is directed to a method of controlling a communications link and apparatus configured to perform this method. This invention is particularly related to but in no way limited...
US20070237246 Wireless modem, modulator, and demodulator  
A wireless modem is mounted to a terminal for wireless communication, and specifically controls an internal drive clock to reduce power consumption in an active mode. The wireless modem includes:...
US20080076438 METHOD FOR DYNAMIC RESOURCE ALLOCATION OF UPLINK AND DOWNLINK IN OFDMA/TDD CELLULAR SYSTEM  
Provided is a method for dynamic resource allocation of uplink and downlink in an OFDMA/TDD cellular system. The method for dynamic resource allocation of uplink in an OFDMA/TDD cellular system...
US20060285485 Quick paging channel with reduced probability of missed page  
A quick paging channel in a random access wireless communication system includes at least one bit in a quick paging frame identifying the presence of a paging message for an access terminal or...
US20120033752 WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD  
To lessen a disparity in stream mapping of transmission data when modulation data are mapped into a plurality of streams and when the plurality of streams are transmitted and received. In a...
US20080043814 Method of Communicating and Associated Transmitter Using Coded Orthogonal Frequency Division Multiplexing (COFDM)  
A system and method communicates and generates a Coded Orthogonal Frequency Division Multiplexed (COFDM) communications signal as a plurality of subcarriers. Selected subcarriers are turned ON and...
US20080273617 STEERING DIVERSITY FOR AN OFDM-BASED MULTI-ANTENNA COMMUNICATION SYSTEM  
A transmitting entity uses different steering vectors for different subbands to achieve steering diversity. Each steering vector defines or forms a beam for an associated subband. Any steering...
US20080152042 OFDM RECEIVER APPARATUS  
An OFDM receiver apparatus receives an OFDM signal including a plurality of DBPSK signals transmitting identical information. An extraction unit extracts the plurality of DBPSK signals from the...
US20110188482 ENHANCEMENTS TO THE MU-MIMO VHT PREAMBLE TO ENABLE MODE DETECTION  
Certain aspects of the present disclosure present a technique for enabling a receiver to detect mode of transmission of a signal based on a common field transmitted to all the receivers. The...
US20090257515 TRANSMISSION METHOD OF WIRELESS SIGNAL AND TRANSMITTER USING THE SAME  
A transmission method of a wireless signal including the following steps is provided. Multiple orthogonal frequency division multiplexing (OFDM) symbols carried by multiple subcarriers are...
US20110176626 Pilot Signal Determination Method and Wireless Communication System Using the Same  
The present invention disclose a pilot signal determination method for a wireless communication system. The wireless communication system utilizes a plurality of sub-carriers. The pilot signal...
US20100080208 Frequency Division Multiplex Transmission Device  
A frequency multiplex transmission device configured to transmit and receive a frequency multiplex signal having a plurality of subcarriers, the frequency multiplex transmission device comprising:...
US20080101484 ICI mitigation method for high-speed mobile OFDM systems  
In high-speed mobile environments, the channel is time-varying within an OFDM symbol. This time-varying characteristic will destroy the orthogonality among subcarriers. Thus, the intercarrier...
US20070025456 Methods and apparatus for encoding information in a signal by spectral notch modulation  
A spectral notch modulation technique for encoding information in a signal involves transforming the signal into the frequency domain via a fast Fourier transform (FFT) of length N, such that the...
US20140233663 METHOD AND APPARATUS OF PRIMARY CELL INDICATION FOR ENHANCED CONTROL CHANNEL DEMODULATION  
Method and apparatus of primary cell indication for enhanced control channel demodulation method and apparatus are disclosed. Control information receiving method in a multi-distributed node...
US20110222616 MIMO Transmission with Rank Adaptation for Multi-Gigabit 60 GHz Wireless  
A wireless system includes a transmitter with a baseband processor responsive to groups of transmitter antenna arrays for communicating over directional beams; and a receiver with a baseband...
US20090060060 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...
US20090003471 OFDM signal acquisition  
In general, in one aspect, the disclosure describes a method defining order and means in which physical parameters of a received OFDM signal may be detected. A fractional frequency offset is...
US20070121745 Filtering process for enhancing OFDMA uplink reception sensitivity  
Methods and systems for filtering and enhancing the uplink reception sensitivity of OFDMA hybrid point to multipoint communication systems, including the steps of: determining transmission...
US20070076805 Multicarrier receiver for multiple-input multiple-output wireless communication systems and method  
Embodiments of a multicarrier receiver and method for generating soft bits in a multiple-input multiple-output system are generally described herein. In some embodiments, operational parameters...
US20110205963 System and Method for Reduced Feedback in Multiuser Multiple Input, Multiple Output Wireless Communications  
A system and method for reduced feedback in MU-MIMO communications is provided. A method for transmitter operations includes transmitting a pilot signal, receiving channel information feedback...
US20090252237 DOUBLE LAYER MAXIMUM RATIO COMBINING FOR OFDM RECEIVER DESIGN WITH INTER-CARRIER-INTERFERENCE CANCELLING  
An apparatus, method, and system for reducing a C/N in an OFDM receiver using diversity combining techniques in the presence of ICI, wherein the apparatus comprises an encoded data estimator...
US20100061223 SUBCARRIER ALLOCATION APPARATUS AND METHOD, SUBCARRIER DE-ALLOCATION APPARATUS AND METHOD IN OFDM SYSTEM  
A subcarrier allocating apparatus allocating data to be transmitted to a plurality of orthogonal subcarriers in an orthogonal frequency division multiplexing (OFDM) system, the apparatus...
US20090252238 RE-ACQUISITION OF SYMBOL INDEX IN THE PRESENCE OF SLEEP TIMER ERRORS FOR MEDIAFLO SYSTEMS  
A technique for re-acquiring a symbol index in the presence of sleep timer errors in a MediaFLO™ (Forward Link Only) mobile multimedia multicast system comprising a receiver and a transmitter,...
US20110051828 METHOD AND SYSTEM FOR AN EFFICIENT CHANNEL QUANTIZATION METHOD FOR MIMO PRE-CODING SYSTEMS  
A method and system for processing communication signals is provided and may comprise, quantizing a channel estimate at a MIMO receiver onto a codebook based on a cost function, wherein the...
US20120177136 WIRELESS COMMUNICATION DEVICE  
According to one embodiment, a wireless communication device which comprises an automatic frequency controller configured to detect a radio frequency shift amount between a transmitting side and a...
US20070058693 Tone sensing and nulling in frequency-hopped multicarrier system  
A method and system for removing frequencies interfering with a UWB OFDM receiver from transmission frequencies of the UWB communication. A sensing mechanism is added to the receiver that develops...
US20090225877 METHOD AND SYSTEM FOR CHARACTERIZATION OF FILTER TRANSFER FUNCTIONS IN OFDM SYSTEMS  
Aspects of a method and system for characterization of filter transfer functions in OFDM systems may include receiving at a filter, a calibration signal which is generated from conversion of a...
US20100260138 Signaling For Multi-Dimension Wireless Resource Allocation  
The present disclosure includes systems and techniques relating to wireless local area network devices. Systems and techniques include determining wireless resource allocations in a time domain, a...
US20100260147 System and Method for Supporting Handovers Between Different Radio Access Technologies of a Wireless Communications System  
A system and method for supporting handovers between different radio access technologies is provided. A method for communications device operations includes sending a request to a controller of...
US20100074353 METHOD OF DESIGNING CODEBOOK FOR NETWORK MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION SYSTEM AND METHOD OF USING THE CODEBOOK  
Provided herein is a method of designing a network codebook that may be shared by a plurality of base stations. Also provided herein is a feedback method of a terminal using the network codebook....
US20110164696 MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) COMMUNICATION SYSTEM USING A CODEBOOK AND METHOD OF DESIGNING THE CODEBOOK  
Provided is a multiple input multiple output (MIMO) communication system using a codebook. A transmitter and a receiver included in the MIMO communication system may generate a codebook having a...
US20100303022 METHOD AND APPARATUS FOR UPLINK SCHEDULING IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM  
A method and scheduler are provided that optimize utilization of an uplink (UL) data packet field of an UL sub-frame. In one embodiment, a request for an allocation of bandwidth is received from...
US20060245472 Orthogonal frequency division multiplexing-code division multiple access system  
An orthogonal frequency division multiplexing (OFDM)-code division multiple access (CDMA) system is disclosed. The system includes a transmitter and a receiver. At the transmitter, a spreading and...
US20080240265 SYSTEM HAVING AN OFDM CHANNEL ESTIMATOR  
A method for an operating system including a channel estimation for OFDM systems in a receiver is disclosed. One embodiment provides information indicative of multiple transmitter signals...
US20080212697 Doppler Dependent Power Control and Sub-Carrier Allocation in ofdm Multiple Access Systems  
Digital data Symbols from a transceiver are transmitted to at least two remote transceivers in a wireless Communications System employing Orthogonal Frequency Division Multiplexing, wherein a...
US20050249298 Multi-code multi-carrier code division multiple access (CDMA) system and method  
A multi-code multicarrier CDMA system and method for communicating data by transforming a stream of data into a plurality of code sequences selected from a code book by associating symbols of the...
US20080151831 Orthogonal repetition and hybrid ARQ scheme  
A multi-user, multiple input, multiple output network and process for transmitting data in a communication system encompassing multiple users, contemplates the steps of: a first user transmitting...
US20090245213 Efficient Quality of Service (QoS) Scheduling in OFDMA Wireless Networks  
A system and methods for A method for efficient Quality of Service (QoS) scheduling in OFDMA wireless networks are presented. In one embodiment, the method includes determining a number of time...
US20090060070 Apparatus and Method for Peak Suppression in Wireless Communication Systems  
A method for suppressing the peak-to-average power ratio (PAPR) while limiting deterioration in signal characteristics in wireless communication devices utilizing wireless communication methods...
US20070165728 Multi-symbol signals including an initial symbol and an extension portion  
A base station generates and transmits a multi-symbol beacon/timing synchronization signal. The multi-symbol beacon/timing synchronization signal includes: (i) an initial symbol including a body...