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7623582 |
Apparatus and method for estimating start of frame
Disclosed is an apparatus and method for estimating a start point of a frame in a wireless communication system. The method includes the steps of receiving a frame and estimating the start of the...
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7623567 |
Method for transmitting data for controlling railway signal installations of a railway system
A method for controlling railway signal installations of a railway system by exchanging data between directly adjacent transceivers over electrically conducting rails of a track is disclosed. More...
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7620116 |
Technique for determining an optimal transition-limiting code for use in a multi-level signaling system
A technique for determining an optimal transition-limiting code for use in a multi-level signaling system is disclosed. In one particular exemplary embodiment, the technique may be realized as a...
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7620076 |
System and method for variably inserting training symbols into transmissions by estimating the channel coherence time in a wireless communication network
A system and method for controlling the quantity of training symbols in a transmission sequence sent by a terminal ( 102, 106, 107 ) in a wireless network ( 100 ). The transmission sequence include...
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7609795 |
Interpolation module, interpolator and methods capable of recovering timing in a timing recovery apparatus
The invention relates to an interpolation module, an interpolator, and methods capable of recovering timing, and in particular, to an interpolation module, an interpolator, and methods capable of...
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7609772 |
Apparatus and method for optimally compensating for imbalance between in-phase and quadrature-phase in a zero-IF OFDM receiver
An optimum I/Q imbalance compensating apparatus and method in a zero-IF OFDM receiver. In the apparatus, a first compensator generates a first symbol by removing interference from a second...
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7609771 |
Maximum ratio transmission
An arrangement where a transmitter has a plurality of transmitting antennas that concurrently transmit the same symbol, and where the signal delivered to each transmitting antenna is weighted by a...
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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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7606335 |
Signal pulse detection scheme for use in real-time spectrum analysis
A spectrum analysis engine (SAGE) that comprises a spectrum analyzer component, a signal detector component, a universal signal synchronizer component and a snapshot buffer component. The spectrum...
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7606315 |
Line sensor selection for quantifying alien crosstalk in a shared communications medium
In a communication medium including a first set A of n communication channels and a second set U of m communication channels, a method for selecting sensor channels in A for quantifying crosstalk...
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7599440 |
Downlink control channel allocation method in mobile communication system
A downlink control channel structure in a CDMA (Code Division Multiple Access) mobile communication system and its operating method are disclosed. Especially, a downlink control channel structure...
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7596080 |
Method for distributing data on an OFDM time-frequency grid allowing for coordination of interferences and adaptive subcarrier frequency allocation, a base transceiver station, a base station controller and a mobile network therefor
The invention concerns a method for distributing data on an OFDM time-frequency grid for data transmission from and to mobile terminals in a mobile network allowing for coordination of...
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7593742 |
Received communication signal processing methods and components for wireless communication equipment
A wireless transmit receive unit (WTRU) and methods are used in a wireless communication system to process sampled received signals to establish and/or maintain wireless communications. A...
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7593480 |
Transmission device and radio communication device
A transmission device having a preferable power efficiency and a wide control range of transmission output power. A pre-stage side of a high-frequency power amplifier changes an amplitude of a...
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7593449 |
Multicarrier sub-layer for direct sequence channel and multiple-access coding
Carrier interferometry (CI) methods may be used to provide transmission protocols having various desirable properties. Such properties may include interference rejection, reduced multipath fading,...
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7590201 |
Method for detecting signal in multiple input multiple output system and receiving device of multiple input multiple output system
The present invention relates to a method for detecting a signal in an MIMO system. In the method, a received signal is detected in a zero forcing (ZF) method, and a first detection interval is...
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7590189 |
Signaling format for wireless communications
Methods, devices and systems for wireless communication generate signals by determining whether legacy devices are within a proximal region of the wireless communication. When at least one legacy...
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7590181 |
Adaptive modulation and coding
In an adaptive modulation and coding method one or more adjustable values are created (S 1 ), each corresponding to at least one of a plurality of available modulation and coding levels applicable...
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7590168 |
Low complexity high-speed communications transceiver
A communication system is disclosed that allows high data-rate transmission of data between components. N-bit parallel data is transmitted in K-frequency separated channels on the transmission...
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7590087 |
Methods for wireless data transmission between a base station and one or more transponders
A method and device for wireless data transmission between a base station and one or more transponders, in which electromagnetic carrier waves are emitted by the base station and symbols are...
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7590045 |
Apparatus and method for transmitting fast feedback information in a wireless communication system
An apparatus is provided for transmitting uplink fast feedback information in a wireless communication system. In the apparatus, a channel encoder generates uplink fast feedback information to...
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7587007 |
Transmitter diversity technique for wireless communications
A simple block coding arrangement is created with symbols transmitted over a plurality of transmit channels, in connection with coding that comprises only of simple arithmetic operations, such as...
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7586994 |
Interface apparatus and method for data recovery and synchronization
The invention provides an interface apparatus for data recovery which supplies an analog signal (applied to the input and containing data in line with a coding) having a first component and a...
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7583937 |
Digital interface and related event manager for integrated circuits
In one embodiment, the present invention includes a method for receiving at a transceiver from a baseband processor digital control information that includes both event and schedule information,...
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7583772 |
System for shifting data bits multiple times per clock cycle
A system and method are used to allow for phase rotator control signals to be produced that rotate bits in the signals more than one step per clock cycle. This can be done through the following...
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7583746 |
Wireless transmitting and receiving device and method
A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal...
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7583735 |
Methods and systems for handling underflow and overflow in a software defined radio
Systems and methods for handling buffer overflows and underflows in a software defined radio are presented. A communications system comprises one or more radio head interface modules and a call...
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7583734 |
Two-wire type data communication method and system, controller and data recording apparatus
When a controller transmits a clock pulse of a positive phase as a first transmit signal (a) and a clock pulse of an opposite phase as a second transmit signal (b), the controller modulates the...
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7583725 |
Dynamically reconfigurable adaptive communication device and system
Method and apparatus for transmission of information is described. A first transceiver has transmitter reconfigurable logic and a second transceiver has receiver reconfigurable logic. The first...
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7583703 |
System and method for power injection and out of band communications on shared medium
In one embodiment, in a power injection and out of band communications on a shared medium system, the system is configured to receive a power signal. Concurrently, the system is configured to...
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7580494 |
Low wander timing generation and recovery
Systems, apparatuses, and methods for low wander timing generation and/or recovery are disclosed here. In one aspect, embodiments of the present disclosure include a communication system for high...
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7573942 |
Method for encoding and decoding control information in a wireless communications system
A method for processing control information in a wireless communications system is described in which portions of the control information are separately encoded and decoded such that transmission...
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7564932 |
Method and system for enhancing bit rate in DMT quad spectrum systems
Systems and methods for achieving a maximum bit rate in a Discrete MultiTone (DMT) system using a quad spectrum under constraints of avoiding interference with radio frequency interference (RFI)...
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7564909 |
Apparatus and method for detecting ranging signal in an orthogonal frequency division multiple access mobile communication system
An apparatus and method for receiving a ranging signal in an OFDMA mobile communication system are provided. The ranging signal receiving apparatus including, a ranging subchannel extractor for...
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7564905 |
System and method for providing terrestrial digital broadcasting service using single frequency network
Provided is a system and method for terrestrial digital broadcasting service using a single frequency network without additional equipment. The system and method synchronizes input signals into...
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7564385 |
Current compensation for digital-to-analog converter
A current compensation circuit and an optimized current compensation circuit are disclosed for a Parallel Resistors Architecture (PRA) digital-to-analog converter (DAC). The circuits are used to...
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7561629 |
Multicarrier receiver and transmitter with delay correcting function
A multicarrier receiver that receives N carrier frequencies therein comprises N A/D converters each of which analog-digital converts a receive signal at a sample rate fs for each carrier, N...
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7561628 |
Apparatus and method for cell acquisition and downlink synchronization acquisition in a wireless communication system
An apparatus and method for cell acquisition and downlink synchronization acquisition in an OFDMA wireless communication system are provided. In an SS apparatus in a broadband wireless...
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7558333 |
Distortion tolerant linear phase modulations
A signal and information transmission system for communications or radar and a method of achieving distortionless transmission of linear phase shift keying signals amplified by nonlinear power...
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7558326 |
Method and apparatus for sending auxiliary data on a TMDS-like link
A communication system including a transmitter, a receiver, and a TMDS-like link, in which video data and auxiliary data (typically including timing data associated with other auxiliary data) are...
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7555049 |
Receiver-side selection of DSL communications mode
A client premises digital subscriber line (DSL) modem having multi-mode capability is disclosed. In initialization, the modem estimates whether channel conditions are such that digital processing...
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7555038 |
Transmission system, signal receiver, test apparatus and test head
A transmission system for transmitting a transmission signal, includes a section for outputting a periodic clock having a preset period, a section for transmitting the transmission signal in...
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7551786 |
System and method for efficient non-overlapping partitioning of rectangular regions of interest in multi-channel detection
A system and method in a multi-channel detection system for multi-rate filter bank applications for converting overlapping rectangular two-dimensional (2D) regions into a new set of non-overlapping...
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7551675 |
Method and apparatus for synchronized transmission and reception of data in a digital audio broadcasting system
A method of transmitting digital audio broadcasting signals comprises the steps of generating a plurality of output frames of information to be transmitted, wherein each of the output frames...
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7551669 |
System for multiplexing independent signals
A system for multiplexing multiple independent signals includes a transmitter, interconnecting medium, and a receiver. The transmitter encodes a waveform with first and second pieces of information...
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7548597 |
Cascadable diversity receiving system and method thereof
The invention relates to a receiving system and method, and in particular, to a diversity receiving system and method. A diversity receiving system comprises a plurality of cascading receivers for...
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7545868 |
High bandwidth data transport system
A method of data transmission provides for representing data using ultra wideband pulses, sending at least one pulse over an electrically conductive guided medium, receiving the at least one pulse...
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7545867 |
Adaptive channel bandwidth selection for MIMO wireless systems
A wireless communications device for a multiple input multiple output wireless communications system includes a radio frequency transceiver that includes at least two antennae and a medium access...
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7545866 |
Dual loop signal quality based link adaptation
A communications link is adapted based on a quality estimate for a signal transmitted via the communications link. The method comprises receiving and demodulating the transmitted signal, assessing...
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7545860 |
System and method of equalization of high speed signals
In one aspect, the present invention is directed to a technique of, and system for enhancing the performance of high-speed digital communications through a communications channel, for example a...
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