Quotables
"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Application No. | Application Title | Issue Date |
| 20120127849 | SIGNAL RECEIVING APPARATUS AND COMMUNICATION SYSTEM There is provided a signal receiving apparatus including first to pth stage computers configured to apply, in a step-by-step manner, butterfly operations to 2N input values; and 2N registers configured to store values obtained by a p−1th stage co... | 05/24/2012 |
| 20120026862 | VARIABLE BANDWIDTH OFDM RECEIVER AND METHODS FOR RECEIVING OFDM SIGNALS OF DIFFERENT BANDWIDTHS A variable bandwidth OFDM receiver and methods for receiving OFDM signals of different bandwidths are generally disclosed herein. The variable bandwidth OFDM receiver may be configured to receive signals over wider bandwidths by processing a resource block of subcarrier... | 02/02/2012 |
| 20120020201 | DEVICE AND METHOD FOR FAST FOURIER TRANSFORM A device and a method for Fast Fourier Transform (FFT) are disclosed. The device includes a data receiving module, an address translation module, a data storage module, a FFT module, a data extraction module and a data output module. The data receiving module is configu... | 01/26/2012 |
| 20110317542 | Method and Apparatus for Diversity Transmission Scheme in Single-Carrier FDMA Systems The disclosure relates to transmission of user data over multiple transmission layers in a wireless communication system with single-carrier orthogonal frequency division multiple access. A wireless terminal performs transform precoding on a vector of digital modulation... | 12/29/2011 |
| 20110310725 | SOFT HANDOFF IN OFDMA SYSTEM Soft handoff in an OFDMA system is disclosed. If the pilot signal strength for a base station exceeds the defined threshold, the base station is added to an active set list. Subcarriers in a plurality of orthogonal frequency division multiplexing (OFDM) symbols are divi... | 12/22/2011 |
| 20110299380 | PILOT SIGNAL IN AN FDMA COMMUNICATION SYSTEM Methods (500, 800) and corresponding systems (100, 200, 300, 400, 900) for generating a pilot symbol (330) include providing an M-point parallel transform sequence that is a discrete Fourier transform of a CAZAC sequence (312, 504-508)... | 12/08/2011 |
| 20110299381 | MOBILE MULTIMEDIA BROADCAST TRANSMISSION SYSTEM A mobile multimedia broadcast transmission system is provided, which comprises: a Reed-Solomon (RS) coding and byte interleaving unit, a Low Density Parity Check (LDPC) coder, a bit interleaver, a constellation mapping unit, a frequency domain symbol generator, a scramb... | 12/08/2011 |
| 20110299383 | METHOD FOR TRANSMITTING DATA IN MULTIPLE ANTENNA SYSTEM An apparatus for data transmission in a multi-antenna system is provided. The apparatus includes: a modulation mapper for modulating codewords into modulation symbols that express a position on a signal constellation; a layer permutator for mapping the modulation symbol... | 12/08/2011 |
| 20110299384 | PILOT SIGNAL IN AN FDMA COMMUNICATION SYSTEM Methods (500, 800) and corresponding systems (100, 200, 300, 400, 900) for generating a pilot symbol (330) include providing an M-point parallel transform sequence that is a discrete Fourier transform of a CAZAC sequence (312, 504-508)... | 12/08/2011 |
| 20110299382 | COMMUNICATION DEVICES FOR GENERATING AND USING A MATRIX-MAPPED SEQUENCE A communication device for generating a matrix-mapped sequence is described. The communication device includes sequence generation circuitry. The communication device also includes mapping circuitry coupled to the sequence generation circuitry. The mapping circuitry app... | 12/08/2011 |
| 20110280117 | BACKWARD-COMPATIBLE LONG TRAINING SEQUENCES FOR WIRELESS COMMUNICATION NETWORKS A network device for generating an expanded long training sequence with a minimal peak-to-average ratio. The network device includes a signal generating circuit for generating the expanded long training sequence. The network device also includes an Inverse Fourier Trans... | 11/17/2011 |
| 20110261676 | CM/PAPR REDUCTION FOR LTE-A DOWNLINK WITH CARRIER AGGREGATION The present invention relates to the reduction of the CM and PAPR of an LTE-A downlink signal after carrier aggregation. The CM and PAPR of the aggregated signal are reduced by introducing cyclic time shifts to the OFDM symbols in each of the component carriers (CC). Ou... | 10/27/2011 |
| 20110261677 | Apparatus and method for supporting various system bandwidths in a broadband wireless communication system An apparatus and method support various system bandwidths in a broadband wireless communication system. A Mobile Station (MS) operation includes determining a system bandwidth through a primary preamble for frame synchronization, which a Base Station (BS) transmits. A F... | 10/27/2011 |
| 20110242963 | SYSTEMS AND METHODS FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a receiver configured to receive a waveform comprising spectrally overlapping carrier signals from at least two of a plurality of remotes... | 10/06/2011 |
| 20110242964 | DOWNLINK ACQUISITION The subject matter disclosed herein provides methods and apparatus, including computer program products, for detecting a preamble to enable acquisition of a downlink. In one aspect, there is provided a method. The method may include receiving a plurality of symbols. Fro... | 10/06/2011 |
| 20110216734 | SYNCHRONIZATION IN AN UPLINK SPATIAL DIVISION MULTIPLE ACCESS MODE OF A WiMAX WIRELESS COMMUNICATION SYSTEM An apparatus and method for synchronization in an uplink spatial division multiple access (UL SDMA) mode of a WiMAX wireless communication system includes a first step (500) of allocating a mixed sequence of first and second tile patterns for mobile station uplin... | 09/08/2011 |
| 20110216644 | RECEIVING APPARATUS AND METHOD A receiving apparatus includes a first transform unit configured to perform orthogonal transform on a time-domain input signal and perform saturation when an overflow occurs to transform the input signal into a plurality of frequency-domain signals, a second transform u... | 09/08/2011 |
| 20110199889 | SEQUENCE-GENERATING METHOD, AND APPARATUS FOR SAME The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for enabling a transmitter to transmit a sequence in a wireless communication system, and to an apparatus for the same. A sequence-transmitting... | 08/18/2011 |
| 20110194402 | METHOD AND APPARATUS FOR WAVEFORM INDEPENDENT RANGING A system and method for calculating a time of arrival (TOA) of an electromagnetic signal is presented. A method receives a fast Fourier transform (FFT) signal that is a FFT of an original electromagnetic signal containing symbol data. The FFT signal is either multiplied... | 08/11/2011 |
| 20110164490 | FAST FOURIER TRANSFORM AND INVERSE FAST FOURIER TRANSFORM (FFT/IFFT) OPERATING CORE An FFT/IFFT operating core capable of minimizing a required memory depth during operation is disclosed. The FFT/IFFT operating core includes an inputting buffer, a first multiplexer, an operating module, and a controlling module. The inputting buffer stores and outputs ... | 07/07/2011 |
| 20110164492 | METHOD AND SYSTEM FOR COMBINING OFDM AND TRANSFORMED OFDM Methods and systems are provided that enable an OFDM transmitter to be used for transmitting conventional OFDM or a form of transformed OFDM. A technique is provided for transforming a coded and modulated sequence of samples prior to an IFFT that enables the transformed... | 07/07/2011 |
| 20110164491 | METHOD AND SYSTEM FOR COMBINING OFDM AND TRANSFORMED OFDM Methods and systems are provided that enable an OFDM transmitter to be used for transmitting conventional OFDM or a form of transformed OFDM. A technique is provided for transforming a coded and modulated sequence of samples prior to an IFFT that enables the transformed... | 07/07/2011 |
| 20110149719 | METHOD FOR SEPARATING BLIND SIGNAL AND APPARATUS FOR PERFORMING THE SAME A method for separating a blind signal includes: converting mixed signals of a time domain collected by using a plurality of sensors into mixed signals of a frequency domain; calculating a separation filter from the mixed signals which have been converted into those of ... | 06/23/2011 |
| 20110149718 | FAST FOURIER TRANSFORM APPARATUS AND METHOD A fast Fourier transform (FFT) apparatus and method. The FFT method may include finding a number of subcarriers carrying valid data in reception data, determining a Fourier transform order on the basis of the number of subcarriers, performing complex multiplication on t... | 06/23/2011 |
| 20110122760 | INTERFERENCE CANCELLATION WITH MU-MIMO SCHEME IN SC-FDMA SYSTEM An apparatus and a method for interference cancellation using a multi-user multiple input multiple output (MU-MIMO) scheme in a single carrier frequency division multiple access (SC-FDMA) system are disclosed. Received data of every terminal are classified into first re... | 05/26/2011 |
| 20110116360 | OFDM SYSTEM AND METHOD EMPLOYING OFDM SYMBOLS WITH KNOWN OR INFORMATION-CONTAINING PREFIXES Systems and methods for transmitting and receiving OFDM symbols are provided which enable the otherwise wasted transmission time normally used as a prefix for each OFDM symbol to contain useful information. At the receiver, the received signal is processed to convert re... | 05/19/2011 |
| 20110116361 | DIGITAL SIGNAL DEMULTIPLEXING APPARATUS AND DIGITAL SIGNAL MULTIPLEXING APPARATUS A digital signal demultiplexing apparatus that can demultiplex and a digital signal multiplexing apparatus that can multiplex signals of channels having arbitrary frequency intervals and bandwidths are provided. The digital signal demultiplexing apparatus performs discr... | 05/19/2011 |
| 20110103219 | METHOD AND APPARATUS FOR GENERATING RANGING PREAMBLE CODE IN WIRELESS COMMUNICATION SYSTEM A method and apparatus of generating a ranging preamble code in a wireless communication system comprises generating a Zadoff-Chu (ZC) sequence in which a cyclic shift is applied to each of a plurality of orthogonal frequency division multiple access (OFDMA) symbols as ... | 05/05/2011 |
| 20110096658 | PRECODING METHOD FOR REDUCING UPLINK PAPR AND APPARATUS THEREOF A radio communication system is provided. An uplink transmission method of a user equipment in a radio communication system includes performing Fourier transform on one or more data sequences to generate one or more first frequency-domain sequences, applying precoding f... | 04/28/2011 |
| 20110069605 | COAXIAL NETWORK COMMUNICATION NODE AND METHODS FOR COMMUNICATING MULTIMEDIA OVER A COAXIAL NETWORK WITH REDUCED-LENGTH CYCLIC PREFIXES A coaxial network communication node receives multimedia content with one or more other nodes in a coaxial network. The node determines a delay-spread of a coaxial channel based on receipt of a probe from a transmitting node and configures a channel-shortening time-doma... | 03/24/2011 |
| 20110058471 | OFDEM SYSTEM AND NYQUIST PULSE SHAPING METHOD WITH HIGH SPECTRUM EFFICIENCY A receiver system to receive an orthogonal frequency division multiplexing (OFDM) symbol of a certain spectrum efficiency. The receiver system includes a guard interval remover, a memory device, and a pulse shaper. The guard interval remover removes a guard interval fro... | 03/10/2011 |
| 20110044160 | FFT NUMEROLOGY FOR AN OFDM TRANSMISSION SYSTEM An exemplary fast Fourier transform (FFT) numerology for an orthogonal frequency division multiple access (OFDMA) downlink transmission system is described. The exemplary FFT numerology reduces the FFT sampling rate for a given transmission bandwidth, thereby increasing... | 02/24/2011 |
| 20110044161 | RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION DEVICE, RADIO COMMUNICATION METHOD, AND PROGRAM A radio communication system according to the present invention has a plurality of radio communication devices that transmit and receive subframes one by one. Each of the plurality of radio communication devices includes a subframe generation unit that generates the sub... | 02/24/2011 |
| 20110038249 | TIMING ADJUSTMENT METHOD, RECEIVING STATION, AND TRANSMITTING STATION IN WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION SYSTEM A discontinuous change in a transmission timing in a time domain, which is caused by a transmission timing adjustment processing of an OFDMA uplink or the like, brings about a discontinuous rotation of a signal phase in a frequency domain, resulting in reduced communica... | 02/17/2011 |
| 20110038250 | ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING TRANSMITTING AND RECEIVING DEVICE An orthogonal frequency division multiplexing (OFDM) receiving apparatus, including a receiving unit, a subcarrier demodulation unit and a signal output processing unit, is provided. The receiving unit is for receiving an RF signal to generate a set of discrete signals.... | 02/17/2011 |
| 20110013708 | Signal Sequence Detection Techniques for OFDM/OFDMA Systems Energy in a frequency band is received at a wireless communication device and data is generated representing samples of a received time domain waveform from the received energy. Data for groups of samples of the received time domain waveform is processed to transform th... | 01/20/2011 |
| 20110007627 | METHOD AND APPARATUS FOR GENERATING RANGING PREAMBLE CODE IN WIRELESS COMMUNICATION SYSTEM A method and apparatus of generating a ranging preamble code in a wireless communication system is provided. A mobile station (MS) generates one of a plurality of ranging preamble codes, wherein the plurality of ranging preamble codes are based on a padded Zadoff-Chu (Z... | 01/13/2011 |
| 20100322066 | METHOD AND APPARATUS FOR TRANSMITTING MIDAMBLE IN WIRELESS COMMUNICATION SYSTEM A method and apparatus of transmitting a midamble in a wireless communication system is provided. A base station (BS) generates a midamble sequence for each of a plurality of antennas, and transmits the midamble sequence to a user equipment for each antenna. A location ... | 12/23/2010 |
| 20100322065 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING SIGNAL IN SINGLE CARRIER FREQUENCY DIVISION MULTIPLEXING ACCESS COMMUNICATION SYSTEM A method and apparatus for transmitting a signal in a Single Carrier-Frequency Division Multiplexing Access (SC-FDMA) communication system are provided. The method includes determining if a Bandwidth Expansion Factor (BEF) Q is an integer, the BEF being determined as N/... | 12/23/2010 |
| 20100315940 | SIGNAL TRANSMITTING METHOD, SIGNAL RECEIVING METHOD AND SIGNAL RECEIVING DEVICE IN OFDM SYSTEM A signal transmitting method, a signal receiving method, and a signal receiving device are adapted to an OFDM system. In the signal transmitting method and signal receiving method, double asymmetric training symbols are used for performing time-varying channel response ... | 12/16/2010 |
