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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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7616717 |
Coarse timing synchronization
A system for determining the burst start timing of a signal includes logic configured to receive the signal, generate correlation moduli and generate a first timing output based on the correlation...
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7616715 |
Method and system for estimating the speed of a mobile device in a network
A method for estimating the speed of a mobile device in a network is provided that includes selecting a correlation length from a plurality of possible correlation lengths. A correlation result is...
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7613258 |
Apparatus and method for determining GPS tracking loop parameter based on SNR estimation
A method for estimating signal quality of a spread spectrum signal is provided. The method includes squaring a plurality of in-phase correlation results and a plurality of quadrature correlation...
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7613227 |
Reverse link correlation filter in wireless communication systems
A single, common correlation filter (CF) core is provided in a receiver for recovery of data from received code division multiple access (CDMA) signals. Signals are received over CDMA channels with...
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7609751 |
Method and apparatus to initiate communications between an unknown node and an existing secure network
A first node initiating communications with a second node already in a secure network sends a discovery burst having a preamble portion and a payload portion. The preamble portion is sent at a...
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7606292 |
Sub-sequence accumulation filter and method
A parallel correlator and method includes temporarily storing in a series of P sequence registers, each of length R 1 , serial bit-sequences of a code of length N=P*R 1 . In a first-level of...
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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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7602834 |
System and method for determining a fine frequency offset of a received signal
A system and method for determining a fine frequency offset of a composite code spread spectrum signal is disclosed. The method includes despreading at least one component of the composite spread...
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7599425 |
Multiple channel joint decoding at mobile handset
A system and method suppresses the interference caused by non-orthogonal signals on multiple channels of the same receiver by applying an inverse of the correlation among the non-orthogonal signals...
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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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7599344 |
Method and apparatus for reducing multi-user processing in wireless communication systems
A method and apparatus is disclosed for reducing multi-user processing at the receiver in wireless communication systems. Detected codes are grouped according to channel impulse response and a...
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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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7596168 |
Diversity receiving apparatus, controlling method of the same, and computer-readable medium containing program therefor
A diversity receiving apparatus receives first and second reception signals and is constituted by including one or more phase shifters that generate one or more third signals having phases...
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7596167 |
Allocation method, network element, module and user device
The invention is related to a network element, comprising: means for receiving feedback information from the user device; means for creating a first orthogonality measure by using the feedback...
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7590164 |
Method and apparatus for efficient use of communication resources in a communication system
The frame of data is partitioned into a plurality of portions of data symbols. A plurality of channel elements is assigned to demodulate data symbols of correspondingly the plurality of portions of...
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7586976 |
Initial ranging detection for OFDMA systems
An initial ranging detection for an orthogonal frequency division multiple access (OFDMA) wireless communication system entails removing data sub-carriers from samples of an OFDMA signal in order...
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7586974 |
Method and apparatus for rake finger allocation in a DS-CDMA receiver
A Direct-Sequence Code Division Multiple Access (DS-CDMA) receiver and method of allocating probing correlators and combining correlators (fingers). A front-end processor converts received radio...
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7583740 |
Apparatus and method for tracking sampling clock in multi-carrier communication system
An apparatus and method for tracking a sampling clock are disclosed. The apparatus includes a compensating circuit compensating phases of a first and a second received symbols according to a...
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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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7580479 |
Receiving method and receiver
Baseband BB input units input baseband received signals. An initial weight data setting unit sets weighting coefficients to be utilized in the interval of a training signal as initial weighting...
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7580470 |
Apparatus for recovering E8-VSB map information and method thereof
A Kerdock decoder of the present invention generates correlation reliability from a relation between correlation values to output together with a Kerdock-decoded map data. A map deciding unit...
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7580464 |
Method for detecting UWB pulse sequences and analog detection means suitable for this purpose
The present invention relates to a method for transmitting data in the form of at least one sequence of Np pulses over Np time windows Tf, each pulse being enclosed within a time chip Tc whose...
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7580451 |
Decoding of Walsh codes
Methods, systems, devices, and computer program products for decoding of Walsh codewords are disclosed.
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7577188 |
Physical layer and MAC enhancements using complex sequences on a wireless channel
A method and apparatus to enable physical layer MAC layer enhancements while at the same time allowing complete backward compatibility with existing protocols. The method and apparatus determine on...
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7570577 |
Apparatus, method, and program for detecting communication parameter
A correlation signal generating circuit generates a duplicate signal for correlation processing based on a multiplex duplication signal. An autocorrelation circuit performs autocorrelation...
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7558346 |
Symbol detector based on frequency offset compensation in ZigBee system and symbol detecting method thereof
The invention relates to a symbol detector for detecting symbols received in a receive modem of short-range wireless personal area network of a ZigBee system (IEEE 802.15.4). An OQPSK short-range...
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7558312 |
Parallel correlator implementation using block integration for spread-spectrum communication
An apparatus for processing spread spectrum signals digitized at a predetermined sampling frequency. The apparatus includes an intermediate frequency signal preprocessing unit, a plurality of...
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7551898 |
Channel quality feedback mechanism and method
Methods and apparatus are presented for improving the feedback of channel information to a serving base station, which allows a reduction in the reverse link load while allowing the base station to...
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7551692 |
Frequency recovery apparatus and method for use in digital broadcast receiver
A frequency recovery device and method, the method including a) dividing first data units and corresponding second data units delayed by time intervals, passing only parts of the data units from...
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7548576 |
Self organization of wireless sensor networks using ultra-wideband radios
A novel UWB communications method and system that provides self-organization for wireless sensor networks is introduced. The self-organization is in terms of scalability, power conservation,...
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7545854 |
Doppler corrected spread spectrum matched filter
A method and apparatus for a spread spectrum matched filter with Doppler correction suitable for using in a radio frequency receiver. The system includes a signal sampler operable to receive signal...
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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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7532686 |
Correlator and receiving apparatus utilizing the same
I delay units and Q delay units continuously delay values of in-phase component and quadrature component of an inputted first baseband received signal. I storage units and Q storage units store...
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7529290 |
Radar apparatus
A radar apparatus has a code generator, a transmission section, a reception section, a delay section, a despreading processor, a correlation value detector, a target detector, and an adjustment...
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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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7523160 |
Information provision exchange service system and method, program for implementing the method, and storage medium storing the program
An information provision exchange service system that can securely prevent the transmission of information that can be used to identify a user to another party and enable users to provide and...
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7522654 |
Finger using mixed weighting, and its application for demodulation apparatus and method
The present invention relates to a finger using mixed-rate weighting in Smart Antenna System, and an apparatus and method for Demodulating signals using such a finger. The present invention is...
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7522556 |
Signal recognition in an on-frequency repeater
An intelligent gain controller (IGC) for an on-frequency repeater implements a method for identifying a desired narrow band signal within a broadband RF signal. Thus, a candidate narrow band signal...
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7519101 |
Method and apparatus for using empty time slots for spread spectrum encoding
Communication circuitry uses a combination of Pseudo-Noise (PN) coded and non-PN coded transmission periods to represent different data values. In one embodiment, a number of data values are...
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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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7515558 |
Code division multiple access communication system, and a base station control device and a base station thereof
Power control of a base station of a CDMA system that includes a plurality of communication terminals and a maintenance terminal is optimized by adjusting one of transmitted power and received...
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7508865 |
System and method for tracking an ultrawide bandwidth signal
A system and method for fast synchronization of an incoming signal with a UWB receiver. The present invention synchronizes a UWB receiver with an incoming signal. The present invention correlates a...
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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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7502431 |
Method and apparatus for estimating response characteristic, and receiving method and receiver utilizing the same
Baseband input units input baseband received signals. Initial value computation units compute correlation values by performing correlation processings between the baseband received signals and a...
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7502312 |
Fourier-transform based linear equalization for CDMA downlink
In the reception of a CDMA signal, the receiving unit performs a simplified process of linear equalization that eliminates the need for inverting the correlation matrix. For the single antenna...
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7499509 |
Receiver for compensating nonlinearly distorted multicarrier signals
An apparatus for compensating nonlinearly distorted multicarrier signals, a multicarrier signal receiver using the same, and a method therefor are provided, where the apparatus for compensating...
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7499485 |
Method and apparatus for detecting GPS data-bit boundaries and detecting GPS satellite-signal reception
Method and apparatus for detecting 50 Hz GPS data-bit boundaries and detecting satellite-signal reception. The apparatus includes a correlating unit and a data-bit boundary detecting unit. The...
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7499483 |
Receiver capable of enhancing receiving efficiency in a code division multiple access communication system
A receiver capable of enhancing receiving efficiency in a code division multiple access communication system includes a signal reception end for receiving signals, a data output unit for outputting...
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