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7620132 |
Positioning signal reception device and control method of positioning signal reception device
A positioning signal reception device receives a positioning signal transmitted from a position information satellite, and includes: a signal reception portion that obtains a reception signal by...
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7620099 |
WCDMA terminal baseband processing module having multi-path scanner module
A baseband processing module according to the present invention includes a multi-path scanner module. The multi-path scanner module is operable to receive timing and scrambling code information...
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7620005 |
Method and apparatus for code assignment in a spread spectrum wireless communication system
Method and apparatus for code assignments in a spread-spectrum wireless communication system incorporating a Large Area Synchronized-Code Division Multiple Access (LAS-CDMA) protocol. The method...
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7616719 |
Compensation for residual frequency offset, phase noise and sampling phase offset in wireless networks
Improved performance, particularly gain in signal-to-noise ratio (SNR), in high-bandwidth Orthogonal Frequency Division Multiplexing (OFDM) receivers, software and systems is achieved by...
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7616681 |
Pilot signals for synchronization and/or channel estimation
The frame words of the embodiments are suitable for frame synchronization and/or channel estimation. By adding the autocorrelation and/or cross-correlation functions of frame words, double maximum...
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7609903 |
Spread spectrum signal demodulating method and apparatus
A spread spectrum signal demodulating method whereby spread-code synchronous acquisition and carrier synchronous acquisition are performed using FFT at high speed, wherein a received signal, of...
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7609755 |
Simplified timing correction for data despreading of serial offset quadrature pulse-shaped spread signals
A simplified timing correction method is provided for data despreading of serial offset quadrature pulse-shaped spread signals. The simplified timing correction algorithm is applied to a rake...
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7606296 |
Decoding method and apparatus
A decoder comprises an equalizer that receives a modulated signal comprising a plurality of symbols including a first symbol defined by a first number of chips. A subsymbol processor that generates...
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7606207 |
User equipment and base station performing data detection using a scalar array
A wireless transmit receive unit (WTRU) recovers data from a plurality of data signals received as a received vector. The WTRU determines data of the received vector by determining a Cholesky...
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7603133 |
Efficient frame tracking in mobile receivers
A method for determining the validity of a most significant path in a wireless communication system wherein data is transmitted in frame units in a multipath environment begins by accumulating a...
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7602841 |
Pilot signals for synchronization and/or channel estimation
The frame words of the embodiments are suitable for frame synchronization and/or channel estimation. By adding the autocorrelation and/or cross-correlation functions of frame words, double maximum...
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7602840 |
Acquisition of a gated pilot
Systems and techniques to acquire a gated pilot signal by searching for a first gated pilot signal, deriving timing information from the search for the first gated pilot signal, and searching for a...
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7602835 |
Multi-rate spread spectrum composite code
A correlator despreads a P/N long code constructed from two or more constituent codes A, B, C having N, M and L elements respectively. In a third stage, L filter taps decorrelate elements of the...
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7599421 |
Spread spectrum applications of universal frequency translation
Frequency translation and spread spectrum applications of same are described herein. Such applications include, but are not limited to, unified down-conversion and de-spreading, unified...
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7596188 |
Digital interface decode receiver apparatus
A power-down determination circuit calculates the horizontal frequency and vertical frequency, respectively, employing a clock signal obtained from a multiplier circuit and horizontal...
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7596170 |
Coherent detection without transmission preamble
A receiving system allows for the coherent detection of a spread-spectrum transmission at any point in time during the transmission, thereby avoiding the need to identify the start of the...
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7596133 |
Apparatus and method for data transmission/reception using channel state information in wireless communication system
Disclosed is a method for transmitting and receiving data according to a channel state in a wireless communication system, the method includes measuring a characteristic of transmission channels...
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7596105 |
User equipment for synchronizing to a TDD base station
A time division duplex (TDD) user equipment (UE) is configured to synchronize to a TDD base station. The UE includes a receiver configured to receive a primary synchronization code along with a...
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7593453 |
Efficient multipath centroid tracking circuit for a code division multiple access (CDMA) system
A spread spectrum signal having an associated code is tracked at a receiver. A plurality of components of the spread spectrum signal are despread using the associated code. Each of the plurality of...
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7593371 |
Radio communication system and base station employing CDMA
A base station controller selects codes corresponding to rate information included in a new starting call message from a mobile station, and further selects codes assignable to the mobile station...
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7586975 |
Code tracking apparatus and method under a multi-path environment in a DS-CDMA communication system
Disclosed is a code tracking apparatus and method under a multi-path environment in a DS-CDMA communication system. Through the steps of calculating fast path energy on a first path signal by...
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7583767 |
Method and apparatus for parallel midamble cancellation
Method and apparatus for performing midamble cancellation to remove midamble interference from the convolution tail of data field 1 and the first W−1 chips of the midamble field which results...
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7583737 |
OFDM signal receiver device and OFDM signal receiving method
The present invention relates to a OFDM signal receiver device that performs weighting for branch metrics based on average noise power or signal-to-noise power ratio and conducts Viterbi decoding...
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7583720 |
Wireless communication method and apparatus for assigning multi-paths to rake receiver fingers
A wireless communication method and system for assigning multi-paths to Rake receiver fingers. A Rake finger assignment database is established in which multi-path signals are categorized into a...
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7580475 |
Base station having a set of phased array antennas
A spread spectrum base station for receiving a plurality of spread spectrum signals and a plurality of phased spread spectrum signals includes an antenna and a plurality of delay devices connected...
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7580466 |
Demodulation device and demodulation method
The present invention relates to a demodulation device and a demodulation method, and its object is to demodulate subcarrier components utilizing estimated delay profiles to control the timing for...
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7577182 |
Transmitter apparatus, receiver apparatus, transmission method, reception method and program
An input receiving section 102 of a transmitter apparatus 101 receives inputs of multiple synchronized signals r 1 , . . . , r N , an asynchronizing section 103 outputs multiple asynchronized...
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7577115 |
Apparatus and method for acquiring code group in asynchronous W-CDMA system
Provided are an apparatus and a method for acquiring a code group that is used for a mobile communication terminal to acquire a scrambling code for identification of a base station. The present...
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7574301 |
Global positioning system receiver and correlating circuit thereof
A global positioning System receiver and a correlating circuit thereof are disclosed. They sequentially and in parallel generate the portion of bits of the C/A code representing the satellite,...
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7568058 |
Rate matching apparatus, systems, and methods
An apparatus and a system, as well as a method and article, may operate to include repeating first data to provide first repeated data and deleting second repeated data to provide second data...
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7567640 |
Phase offset tracking method for tracking a phase offset and device thereof
The invention relates to a phase offset tracking module and method for tracking a phase offset, and in particular, to a phase offset tracking module and method for tracking a phase offset in a...
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7567633 |
Reception device with data recovery mechanism, adapted to transmission system using a direct spread spectrum sequence
A BPSK type reception device that includes a decoder for decoding a digital input signal, first and second comparators for delivering a decoded data signal and a data capture clock signal also...
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7561638 |
Demodulation apparatus and receiving apparatus
A demodulation apparatus that can support various oscillation frequencies. The portable phone device includes a frequency synthesizer for generating a local-oscillation signal having a local...
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7555033 |
Binary offset carrier M-code envelope detector
An M code envelope detector receives an incoming binary offset carrier (BOC) signal, such as the M code signal, and generates inphase BOC and quadraphase BOC signals, separated by an offset, that...
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7555032 |
Signal receiver using alternating time segments
A GPS receiver and method using alternating “A” and “B” integration time segments. The polarities of certain GPS data bits are known beforehand and their expected reception times are known....
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7545895 |
High performance W-CDMA slot synchronisation for initial cell search with reduced hardware
Two preferred embodiments provide slot synchronization of an initial cell search. Two Finite Impulse Response (FIR) filters are used to correlate the synchronization codes transmitted in the...
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7545790 |
Apparatus and method for acquisition of communication quality
In mobile communication systems employing the CDMA method, the communication quality is acquired from the CDMA pilot channel. A communication quality acquisition apparatus comprises a delay profile...
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7539239 |
Apparatus for rapid PN code acquisition
An apparatus and method of determining a signal code. The method comprising steps of acquiring and correlating a signal with a first code sequence. In response to the timing lock is achieved. Also...
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7539238 |
Extended algorithm data estimator
A method of data estimation for a Time Division Duplex (TDD) Code Division Multiple Access (CDMA) system or any other system using an extended algorithm (EA) in preference to a truncated algorithm...
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7539237 |
Fast locking mechanism for channelized ultrawide-band communications
A receiver for acquisition and lock of an impulse radio signal comprising an adjustable time base to output a sliding periodic timing signal having an adjustable repetition rate, and a decode...
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7535983 |
Method for identifying the beginning of a UWB pulse sequence
A method for transmitting data in the form of pulse sequences, including a signal synchronization step carried out by a receiver of dataframes DF, in the course of which at least one time window...
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7529291 |
Methods and structures for rapid code acquisition in spread spectrum communications
Methods and structure for improved speed in pseudo-noise code acquisition. A receiver may include features to evaluate multiple potential pseudo-noise (PN) digital code sequences in parallel to...
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7526015 |
Parallel correlator implementation using hybrid correlation in spread-spectrum communication
A method for processing spread spectrum signals through a two step integration process in a circuit having an intermediate frequency signal preprocessing unit and a plurality of block integrators,...
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7526014 |
Correlator for spread spectrum receiver
The present invention discloses correlation architecture in the application of full-digital GPS (Global Positioning System) receivers. According to the present invention, a satellite C/A code...
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7526013 |
Tag communications with access point
A method of establishing communication at a tag includes calculating a metric for each of a plurality of automatic frequency control (AFC) hypotheses where the plurality of AFC hypotheses...
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7526010 |
Doped multi-rate spread spectrum composite code
A composite code is made for example by exclusive-OR'ing each real element of a first constituent code A with each element of a second constituent code B to obtain a basic composite code. To...
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7515653 |
Digital broadcasting receiver, driving method thereof, and self-diagnosis method thereof
A digital broadcasting receiver, a driving method, and a self-diagnosis method thereof, are provided. The digital broadcasting receiver includes: a digital demodulator for demodulating a digital...
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7508860 |
Pulse signal generator for ultra-wideband radio transception and radio transceiver having the same
Provided are a pulse signal generator for UWB radio transception and a radio transceiver having the same. The pulse signal generator includes: an envelope generator generating a plurality of...
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7496132 |
Pilot signals for synchronization and/or channel estimation
The frame words of the embodiments are suitable for frame synchronization and/or channel estimation. By adding the autocorrelation and/or cross-correlation functions of frame words, double maximum...
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7492844 |
Data processing method, equalizer and receiver
The invention is related to an equalizer comprising, for instance: means for creating a first covariance matrix and defining a Cholesky decomposition matrix of an inverse matrix of the first...
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