| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 375213000 | Testing | 11 |
| 20110116531 | REMOVAL OF MULTIPLICATIVE ERRORS IN FREQUENCY DOMAIN CHANNEL ESTIMATION FOR WIRELESS REPEATERS - A method for estimating a feedback channel for a wireless repeater uses frequency domain channel estimation and uses a signal indicative of the amplified signal as a pilot signal. The channel estimation method generates a time domain feedback channel estimate from the frequency domain channel estimation and scales the time domain feedback channel estimate using scaling factors. In one embodiment, the scaling factors are function of a tap index and the block size of the frequency domain channel estimation. | 05-19-2011 |
| 20110134970 | SYSTEM AND METHOD FOR PERFORMING WEIGHTED PROCESSING ON DOWN LINK SIGNAL - A method, device, and communications system for performing weighted processing on a downlink signal are provided. The method includes: acquiring a first CIR from a BS to a relay station and a second CIR from the relay station to a MS; determining a pre-coding weight and a relay weight according to the first CIR and the second CIR; and respectively sending the pre-coding weight and the relay weight to the BS and the relay station, so that the BS is enabled to perform weighted processing on a downlink signal according to the pre-coding weight to obtain a downlink pre-coding weighted signal and send the downlink pre-coding weighted signal to the relay station, and the relay station is enabled to perform weighted processing on the downlink pre-coding weighted signal received by the relay station according to the relay weight to obtain a downlink relay weighted signal and send the downlink relay weighted signal to the MS. Thereby, the downlink signal is optimized at the BS and the relay station respectively, thus optimizing the network capacity and improving the communication quality. | 06-09-2011 |
| 20110182331 | DEVICE AND METHOD FOR PROCESSING INPUT DATA OF PROTECTIVE RELAY - A device and a method for processing an input data of an protective relay, even in case that data stored in an accumulation buffer of the protective relay is damaged due to noises, etc., that can recover it and carry out a normal measurement are provided, the invention includes a digital signal processing part comprising inputting a sampled digital data to a digital signal processing part, counting and accumulating frequency of the inputted data, comparing the accumulated value with a value of a period, inputting a value of an update accumulation buffer to a measurement accumulation buffer and initializing the update accumulation buffer if the counted accumulation frequency is equal to the value of one period; and performing an RDFT (Recursive Discrete Fourier Transform) operation on the inputted digital data to dually buffering the measurement accumulation buffer and the update accumulation buffer. | 07-28-2011 |
| 20110188549 | Systems and Methods for Generating a Pre-Coding Code Book - In a network comprising a signal forwarding node, a pre-coding code book generating method, wherein the method comprises: generating a pre-coding code book, wherein the pre-coding code book comprises at least one pre-coding code word corresponding to the signal forwarding node, and the pre-coding code word comprises one or more antenna beamforming weights; and communicating the pre-coding code book to a user equipment. | 08-04-2011 |
| 20110222589 | Satellite Beam Monitoring - A method of monitoring at least one beam of a satellite, the at least one beam being directed at a body around which the satellite orbits, the method comprising monitoring the at least one beam using a monitoring satellite which orbits around the body. | 09-15-2011 |
| 20110249708 | AUTOREGRESSIVE SIGNAL PROCESSING FOR REPEATER ECHO CANCELLATION - A method and apparatus to address multipath interference in a communication system is provided. The method comprises measuring an error signal in a signal path of the repeater, wherein the error signal contains desired communication signals, noise signals, and multipath coupling interference signals, computing a power spectrum of the measured error signal, and estimating a response of the multipath coupling interference by processing the power spectrum of the measured error signal using autoregressive estimation in the frequency domain. The method further comprises computing a plurality of FIR filter coefficients from the estimated response and applying the plurality of filter coefficients to an adjustable filter that generates a cancellation signal used to at least partially mitigate the multipath coupling interference signals. | 10-13-2011 |
| 20110317746 | COMMUNICATION APPARATUS, RELAY METHOD THEREOF, AND COMPUTER-READABLE STORAGE MEDIUM - A communication apparatus may include a demodulation unit, a waveform memory unit, a decoding unit, an encoding unit, a modulation unit, and a transmission unit. The demodulation unit demodulates a received signal to create a demodulated signal. The waveform memory unit stores the demodulated signal and a waveform of the demodulated signal. The decoding unit decodes the demodulated signal to create a decoded signal. The encoding unit encodes the decoded signal to create an encoded signal. The modulation unit modulates one of the encoded signal to create a modulated encoded signal and the demodulated signal to create a modulated demodulated signal. The transmission unit transmit one of the modulated encoded signal and the modulated demodulated signal according to a reception state of the received signal. | 12-29-2011 |
| 20120140796 | SOFT FORWARDING FOR COOPERATIVE WIRELESS COMMUNICATION - Providing for soft error decoding for wireless relay networks is described herein. By way of example, a wireless node in a wireless relay network can receive a direct signal from a source node, and can receive a forwarded version of the source signal from a relay node. An information flag included with the forwarded version is referenced to determine whether the relay node property received the source signal. If the relay node received the source signal with error, and a destination node received the source signal with error, soft decision information can be generated from the forwarded version of the source signal and employed to assist with decoding of the source signal at the destination node. The soft-decision information improves end-to-end performance of the wireless relay system, while mitigating complexity and bandwidth requirements for the relay node as compared with conventional signal decoding techniques. | 06-07-2012 |
| 20120189037 | RELAY AND DATA RELAY METHOD - Disclosed is a relay. The relay includes: a reception unit configured to receive signals from a transmitter; a processor configured to estimate a channel with respect to the transmitter based on a pilot signal of the transmitter among receiving signals, remove the pilot signal from among the received signals, amplify the signals without the pilot signal according to the estimated channel, and insert a pilot signal of the relay into the amplified signals; and a transmitter transmitting the signals including the pilot signal of the relay under the control of the processor. | 07-26-2012 |
| 20120213254 | COMMUNICATION CAPACITY EVALUATING APPARATUS, RADIO RELAY APPARATUS AND COMMUNICATION CAPACITY EVALUATING METHOD - Provided is a communication capacity evaluating apparatus whereby the communication capacity can be grasped and the necessity of changing the content of a dead spot measure after the placement of a relay apparatus can be eliminated. In the communication capacity evaluating apparatus, a system information analyzing unit ( | 08-23-2012 |
| 20130287067 | GPS AIDED OPEN LOOP COHERENT TIMING - GPS aided precision timing uses GPS to generate synchronized timing pulses by various nodes. One of the nodes is designated as a master node and the remaining nodes are designated as auxiliary nodes. Each node tracks the carrier phases of satellite signals transmitted by a plurality of GPS satellites relative to a carrier phase of a reference oscillator in the respective node. The master node provides the tracked phase measurements along with its position information to all of the auxiliary nodes. Each auxiliary node determines the phase offset of its reference oscillator relative to the reference oscillator of the master node to “align” its phase to the phase of the master node. The phase of a time pulse signal generator in each node is then aligned to the phase of its reference oscillator for generating synchronized timing pulses based on the aligned phases. | 10-31-2013 |
