Matches 1 - 39 out of 39


Match Document Document Title
US20070297456 Pulse Disturbance Weighting Rectifier  
A rectifier circuit used for weighting pulse disturbances in relation to the influence thereof on digital radio systems, comprising a cascade circuit of an effective value rectifier and a linear...
US20080112334 WIRELESS DEVICE DISCOVERY IN A WIRELESS PEER-TO-PEER NETWORK  
Systems and methodologies are described that facilitate detecting and/or identifying peers in a local area peer-to-peer network. Times (e.g., peer discovery intervals) for performance of mutual...
US20080049791 Pilot design for long term evolution uplink multi-input multi-output antenna system  
A pilot transmission in a multiple antenna closed loop transmission time multiplexes a beam-specific pilot and an antenna-specific pilot in two short blocks of one uplink sub-frame. The...
US20050083888 Forward link handoff for wireless communication systems with OFDM forward link and CDMA reverse link  
A method and apparatus for performing handoff in a wireless communication system with multi-carrier modulation (MCM) for a forward link and CDMA for a reverse link. In one embodiment, a method of...
US20100002570 Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system  
A multi-antenna transmitting entity transmits data to a single- or multi-antenna receiving entity using (1) a steered mode to direct the data transmission toward the receiving entity or (2) a...
US20060274777 Radio transceiver and radio transmitting method  
In a mobile communication system, multiple transceivers perform radio communications in the same frequency band. A transceiver (700) comprises a first sync timing detection part (706) configured...
US20080056305 PHASE CORRECTION FOR OFDM AND MIMO TRANSMISSIONS  
Techniques for performing phase correction for wireless communication are described. Received pilot symbols and received data symbols may be obtained from an orthogonal frequency division...
US20060198292 Ofdm reception device and ofdm reception method  
An interference power calculation section 208 calculates an interference power value of each symbol according to a calculation expression (interference power=average power of parts unaffected by...
US20070258357 METHOD OF TRANSMITTING OFDM SIGNAL AND TRANSMITTER AND RECEIVER THEREOF  
A method of transmitting OFDM signals including, allocating a first pilot signal and a first data signal which are both common among OFDM transmitters respectively to at least one first pilot...
US20060291371 Softer and soft handoff in an orthogonal frequency division wireless communication system  
Transmission patterns for pilot symbols transmitted from a mobile station or base station are provided. The patterns may be selected according to a location of the mobile station with respect to...
US20060291427 Method for identifying home cell and apparatus thereof  
A method for identifying a cell that provides a differentiated service in a mobile communication system. The method comprises searching for a plurality of pilots having strength greater than a...
US20060262715 Disturbing signal detection device and ofdm reception device using the same  
A disturbing signal detecting device that detects a disturbing signal and improves error correcting capability for a signal including an interference, and an OFDM receiver that improves reception...
US20080080560 METHOD FOR MULTIPLEXING CONTROL SIGNALS AND REFERENCE SIGNALS IN MOBILE COMMUNICATIONS SYSTEM  
A reference signal multiplexing method for multiple mobile stations includes: grouping together control signals for the multiple mobile stations; and multiplexing reference signals corresponding...
US20080031281 Method And Device For The Demodulation Of Satellite Radio Navigation Signals  
For demodulating radio navigation signals (s(t)) transmitted in spread spectrum and comprising a data channel modulated by a navigation message and a pilot channel not modulated by a navigation...
US20050141413 Receiver, receiving method, reception control program, and storage medium  
When estimating a transmission route characteristic in accordance with the information of a received transmission signal, it is desired to correctly estimate a transmission route characteristic...
US20070070928 Auxiliary FL MIMO pilot transmission in 1XEV-DO  
Systems and methodologies are described that facilitate providing auxiliary multiple-input, multiple-output (MIMO) pilot signals to MIMO user devices in a wireless communication environment....
US20070064651 Apparatus and method for performing handoff in cellular environments  
Provided are an apparatus and a method for performing a handoff in a broadband cellular communication system with a frequency reuse factor of N by using both of two neighboring frequency...
US20070070944 Pilot structure for multicarrier transmissions  
A method, device, computer program product, integrated circuit, and system are described to dispose pilot sequences (for aiding a receiver in estimating a channel) in a frame structure that has...
US20070189334 Multi-carrier communication system  
The present application relates to a communication method in which a succession of time domain symbols (TDS) are transmitted by a transmitter to one or more receivers. Each time domain symbol has...
US20090003385 TX EVM IMPROVEMENT OF OFDM COMMUNICATION SYSTEM  
In a wireless communication method and system, a data/pilot constellation is modulated and generated based on input information bits. Channel estimation (CE) sequence in frequency-domain is...
US20080205451 TRANSMISSION SCHEME FOR UPLINK ACCESS IN A FDMA SYSTEM  
Transmission scheme for the uplink of FDMA systems that improves performance in an interference-dominated system by using a pilot scheme that provides enough information so that channel estimates...
US20070058708 Method and apparatus for automatically correcting receiver oscillator frequency  
A method and apparatus for automatically correcting the frequency of a local oscillator of a receiver. A primary common pilot channel (CPICH) code sequence is generated by a CPICH code generator...
US20060165041 Apparatus and method for acquiring pilot synchronization in a code division multiple access system  
An apparatus and method for acquiring a pilot channel in a code division multiple access (CDMA) system. A signal strength detector detects signal strength values for all pseudo-random noise (PN)...
US20070263666 Radio Transmitting Apparatus, Radio Receiving Apparatus, Radio Transmitting Method and Radio Receiving Method  
A radio transmitting apparatus and the like for improving the reception error rate characteristic. In this apparatus, a data modulating part (121) modulates a data signal to provide a modulated...
US20080068980 METHOD AND APPARATUS FOR POSITIONING PILOT IN AN OFDMA MOBILE COMMUNICATION SYSTEM  
An apparatus and method for positioning a pilot in a transmitter for an Orthogonal Frequency Division Multiple Access (OFDMA) mobile communication system. In the apparatus, a consecutive block...
US20060098569 Method and apparatus for arranging pilot tones in a mobile communication system  
An apparatus and method are provided for arranging tones to isolate signals between base stations (BSs) in a high rate packet data (HRPD) system. Packet data is received from a higher layer and...
US20070036179 Channel and interference estimation in single-carrier and multi-carrier frequency division multiple access systems  
In a single-carrier frequency division multiple access (SC-FDMA) system, a receiver receives transmission symbols from a transmitter, determines a set of subbands used by the transmitter,...
US20070110095 Method and system for decoding  
Methods and apparatus to decode encoded data. One method starts and stops turbo decoding depending on channel conditions of a received pilot signal. One method may be used with Hybrid Automatic...
US20070127466 Apparatus and method for processing packet in voice and data integration system  
An apparatus and method for processing a packet in a voice and data integration system are provided. The voice and data integration apparatus includes: a digital signal processing (DSP) for...
US20050201270 Method and apparatus for transmitting and receiving pilot signals in an orthogonal frequency division multiple access system  
A method and apparatus are provided for transmitting and receiving pilot signals to estimate link gains and channels of neighboring base stations in an orthogonal frequency division multiple...
US20070030798 Doppler frequency calculating apparatus and method and OFDM demodulating apparatus  
A Doppler frequency calculating apparatus that calculates a Doppler frequency, which is the magnitude of a time-dependent fluctuation of a characteristic of the transmission path through which an...
US20070211619 METHOD AND APPARATUS FOR HYBRID CDM OFDMA WIRELESS TRANSMISSION  
A method and apparatus for wireless transmission from a mobile unit to a base station includes multiplexing a pilot signal and a data signal, wherein the data signal operates at a data rate by...
US20070036066 METHOD AND APPARATUS FOR PILOT SIGNAL TRANSMISSION  
A pilot transmission scheme is presented where during a first OFDM symbol period a first pilot sequence is transmitted over a first multiple sub-carriers on a first group of antennas. During a...
US20080310457 Data Communication System, Data Transmitting Device, Data Receiving Device, Data Communication Method, and Data Communication Program  
There is provided a data communication system that performs power line communication having satisfactory communication quality by disposing data in channels where notches or noises do not exist in...
US20080232484 METHOD AND APPARATUS FOR IMPROVED ESTIMATION OF SELECTIVE CHANNELS IN AN OFDMA SYSTEM WITH DEDICATED PILOT TONES  
The present disclosure provides a method and apparatus of channel estimation for a wireless communication system. Dedicated pilot symbols transmitted over at least one time-frequency region for at...
US20070091787 Apparatus and method for channel selective scheduling in mobile communication systems using OFDMA  
An apparatus and a method for selectively scheduling channels in mobile communication systems adopting Orthogonal Frequency Division Multiple Access, are provided. In an exemplary apparatus and...
US20060067206 Method and apparatus for communication in a system employing differing transmission protocols  
A method and apparatus for communication in a system employing differing transmission protocols. It is determined whether a first time slot of one transmission protocol is adjacent to a second...
US20160315724 SIGNAL PROCESSING APPARATUS, SIGNAL TRANSMITTING APPARATUS AND RECEIVER  
Embodiments of the present disclosure provide a signal processing apparatus, a signal transmitting apparatus and a receiver, which are adapted for a frequency division multiplexing system having a...
US20150288498 Upstream Transmission Burst Configuration  
The present disclosure is directed to an apparatus and method for processing data for upstream transmission. The apparatus and method can be implemented within a cable modem to specifically...

Matches 1 - 39 out of 39