Matches 1 - 50 out of 153 1 2 3 4 >


Match Document Document Title
US20120003945 SYSTEMS AND METHODS FOR 8-TX CODEBOOK AND FEEDBACK SIGNALING IN 3GPP WIRELESS NETWORKS  
A mobile station for use in a wireless network. The mobile station is operable to transmit feedback values to a base station of the wireless network. The feedback values include a first precoder...
US20150215054 METHOD FOR CONFIGURING A RECONFIGURABLE ANTENNA SYSTEM  
The invention relates to a method (1) for configuring a reconfigurable antenna system (100). The method (1) comprises the following steps: a) selecting one or more groups of antenna configurations...
US20130065545 IMMERSIBLE UHF ANTENNA WITH LOW POWER AUTO TUNING SYSTEM  
An antenna is provided having a good matching characteristics when immersed in a fluid such as saline water, oil, or other liquids (“the phantom liquid”). In some embodiments, the antenna provides...
US20110053530 BASE-STATION FAILURE PREDICTOR  
A base-station failure predictor comprises an interface to at least one sub-unit of a base-station of a mobile communications network, an alarm memory, and an alarm evaluator. The base-station...
US20130107926 Controlling a Power Amplifier Based on Transmitter Output Emissions  
Methods and systems for controlling the supply voltage provided to a power amplifier (PA) in a radio frequency (RF) transmitter based on measured output spectrum emissions are provided. In an...
US20120225628 TELECOMMUNICATIONS NETWORK NODE AND METHODS  
A telecommunications network node and methods are disclosed. The method is for generating, by genetic programming, evolved algorithms for adjusting base station transmission power to control...
US20080305754 Systems and methods for over-the-air testing of wireless systems  
Embodiments include systems and methods for over-the-air testing of wireless systems. Embodiments comprise separated anechoic chambers containing wireless devices. The anechoic chambers are...
US20050064864 Symbiotic system for testing electromagnetic signal coverage in areas near transport routes  
A cooperative system for testing signal strength near a target area selected by a wireless provider is disclosed, using test units installed in the fleet vehicles of an unrelated service...
US20120258675 Antenna Tuner in Combination with Modified Feedback Receiver for Improved Antenna Matching  
Some embodiments of the present disclosure relate to techniques for automatically measuring antenna mismatching conditions for a given mobile phone with a given antenna in a given environment and...
US20120270511 Closed Loop Power Control for a Wireless Transmitter  
Embodiments of the present disclosure provide systems and methods for estimating gain and phase error in a wireless transmitter. Embodiments of the present disclosure provide a gain and phase...
US20090233562 Systems and Methods for Transmitter Calibration  
Systems and methods may be provided for transmitter calibration. The systems and methods may include providing one or more radio frequency (RF) test signals at an output of a transmitter, wherein...
US20130005285 USING OUT-BAND INFORMATION TO IMPROVE WIRELESS COMMUNICATIONS  
Technologies and implementations for adapting communication settings in wireless devices are generally disclosed.
US20110263212 WIRELESS DEVICE AND CONTROLLING METHOD OF WIRELESS DEVICE  
A wireless device includes at least a transmitter to transmit a transmitting signal; a triggering device arranged to monitor an operating status of the wireless device when the transmitter is...
US20070072564 Rendering Subject Identification on Protected Messages Lacking Such Identification  
Rendering subject information for a protected message received and stored at an electronic communications device, wherein the message is initially received by the electronic communications device...
US20090047916 TRANSMIT POWER CONTROL TECHNIQUES FOR WIRELESS COMMUNICATION SYSTEMS  
Methods and systems of controlling transmit power in a multi-user wireless communication system is provided, A transmit power, level for a transmitter is determined according to an algorithm based...
US20090163155 METHODS FOR CALIBRATING A TRANSMITTER, AND RADIO TRANSMITTER  
In an embodiment, a radio transmitter may be provided. The radio transmitter may include a radio transmitter control loop; and a controller configured in such a way that it operates the radio...
US20110086598 DYNAMIC REAL-TIME CALIBRATION FOR ANTENNA MATCHING IN A RADIO FREQUENCY RECEIVER SYSTEM  
Real-time calibration of a tunable matching network that matches the dynamic impedance of an antenna in a radio frequency receiver system. The radio frequency receiver system includes two...
US20110014885 UPDATING CHANNEL ESTIMATES  
MIMO OFDM receiver which periodically forms a channel estimate and compares: a: an estimate of the capacity of the channel if the transmitter were to make use of the receiver's channel estimate...
US20140106666 OUT-OF-BAND RADIO LINK PROTOCOL AND NETWORK ARCHITECTURE FOR A WIRELESS NETWORK COMPOSED OF WIRELESS TERMINALS WITH MILLIMETRE WAVE FREQUENCY RANGE RADIO UNITS  
The present invention relates to a wireless transmitter comprising a transmitter radio unit working a wireless transmitter comprising a transmitter radio unit working in the millimeter wave...
US20110086599 TRANSMITTER CONTROL  
Various embodiments are disclosed relating to techniques of controlling a transmitter. In accordance with an example embodiment of the present invention, a maximum level of signal distortion...
US20090088094 TRANSMITTER CAPABLE OF REDUCING LOCAL OSCILLATION LEAKAGE AND IN-PHASE/QUADRATURE-PHASE (I/Q) MISMATCH AND ADJUSTING METHODS THEREOF  
An adjusting method for reducing local oscillation leakage or I/Q mismatch in a transmitter includes the steps of: (a) detecting a current extent of local oscillation leakage or I/Q mismatch; (b)...
US20120040631 Compact Radiofrequency Coupler  
A compact and low-cost radiofrequency coupler, notably for the production of radiofrequency transmitters, includes a transmission line and a measuring line, the measuring line being coupled to the...
US20080220727 Heating control system  
A heating control system, monitoring system and predictive maintenance radio sensor system. The heating control system comprises at least one temperature transducer element having a downstream...
US20080039032 Traffic monitoring  
Embodiments of the invention include a method comprising monitoring a traffic pattern relating to a terminal, and regulating states of the terminal according to the monitored traffic pattern....
US20110250928 ADJUSTABLE WIRELESS CIRCUITRY WITH ANTENNA-BASED PROXIMITY DETECTOR  
An electronic device such as a portable electronic device has wireless communications circuitry. Antennas in the electronic device may be used in transmitting radio-frequency antenna signals. A...
US20110280147 Front-End Module and Method for Testing a Front-End Module  
For simpler and more rapid testing of a front-end module, additional linked operating states are provided in the switch and/or its decoder and allow a plurality of paths to be enabled in parallel,...
US20120264379 GAIN INDEX BASED RADIO CALIBRATION  
A wireless device includes an antenna, Radio Frequency (RF) circuitry, and baseband processing circuitry. The baseband processing circuitry couples to the RF circuitry and is operable to determine...
US20120276860 SYSTEM AND METHOD OF MEASURING TOTAL RADIATED POWER FROM MOBILE WIRELESS COMMUNICATIONS DEVICE  
A system for testing a communications device includes a portable wireless communications device comprising a transmitter for transmitting an RF signal. A monitoring device receives the RF signals...
US20090280753 Method of Checking the Integrity of an Antenna Arrangement, Transmitter, Receiver and Transceiver  
In a method of checking the integrity of an antenna arrangement (2) of a transmitter (1), which transmitter (1) comprises a transmitter driving stage (4) for driving the antenna arrangement (2)...
US20050239420 Rf amplifier system with interface to provide a computer readable spectral depiction of the rf output  
An RF amplifier system includes an RF power amplifier, a coupler, a digital signal analysis circuit, and an interface. The RF power amplifier has an RF output. The coupler is coupled to the RF...
US20090093222 CALIBRATION AND BEAMFORMING IN A WIRELESS COMMUNICATION SYSTEM  
Techniques for performing calibration and beamforming in a wireless communication system are described. In an aspect, a Node B may periodically perform calibration in each calibration interval...
US20090247095 Method and system to prevent harmonics from causing distortion in a communications system  
According to one exemplary embodiment, a method of preventing harmonics from causing distortion in a communications system includes feeding a test signal through a pre-distortion circuit in the...
US20050202786 Network supervisory control system and network supervisory control method  
A network supervisory control system includes at least one wireless network terminal connectable to a wireless network, and a computer which supervises and controls the wireless network terminals,...
US20120003946 ADAPTIVE ARRAY ANTENNA AND WIRELESS COMMUNICATION APPARATUS INCLUDING ADAPTIVE ARRAY ANTENNA  
To provide an adaptive array antenna capable of increasing resolution of a variable beam direction of the antenna without increasing a calculation amount in arithmetic processing unit for...
US20050181749 Method and apparatus for compensating phase errors in a base station system  
An apparatus and a method for compensating phase errors in a wireless BSS. The invention compensates I/Q signal imbalances and phase errors occurring in base station systems each having a direct...
US20100041353 Techniques for Calibrating a Transceiver of a Communication Device  
A technique for calibrating a transceiver of a wireless communication device includes selectively coupling an output node of a transmitter of the transceiver to an input node of a receiver of the...
US20070238422 BUILT-IN TESTING SIGNAL WIRELESS COMMUNICATION APPARATUS AND TESTING METHOD THEREOF  
A wireless communication apparatus has: a direct current generator, for generating a direct current signal and a transmitter. The transmitter includes: an oscillating signal generator for...
US20120252382 PREDISTORTION CALIBRATION AND BUILT IN SELF TESTING OF A RADIO FREQUENCY POWER AMPLIFIER USING SUBHARMONIC MIXING  
A novel and useful apparatus for and method of predistortion calibration and built-in self testing (BIST) of a nonlinear digitally-controlled radio frequency (RF) power amplifier (DPA) using...
US20110195679 IC COMPONENT BENCHMARKING WITHOUT EXTERNAL REFERENCES  
Resistors and capacitors of an integrated circuit (IC) are calibrated without an external reference resistor. The IC includes a tunable circuit element and a benchmarking circuit. The benchmarking...
US20070072563 Server selection in a wireless communications network  
Disclosed is a method and system for selecting a server base station based on reverse link signal strength measurements. The method and system involve receiving, at a network controller or a...
US20130157596 Method for Transmitting a Signal Below a Current Transmit Power in a Network  
A transmitter includes a detection element to determine when a current power requirement of a communication link is less than the standard transmit power. The current power requirement may be...
US20110293033 DEVICE, SYSTEM AND METHOD OF TRANSMITTER OUTPUT POWER MANAGEMENT  
Some demonstrative embodiments include devices, systems and/or methods of transmitter output power management. For example, a device may include a transmitter capable of generating a wireless...
US20150155956 PROCEDURE AND ARRANGEMENT FOR TESTING THE OPERATIONAL STATE OF A PROCESS TOOL  
Methods and apparatus are disclosed for testing an operating state of a processing tool comprising an electrode with a transmitter having a sensor interface for connecting a sensor. A simulated...
US20130143506 SYSTEM AND METHOD FOR CHANNEL-ADAPTIVE ANTENNA SELECTION  
Systems and methods that provide channel-adaptive antenna selection in multi-antenna element communication systems are provided. In one embodiment, a method that selects a subset of receive...
US20070077890 Method of estimating inter-modulation distortion  
In the method, positions of a plurality of transmitting sources within a proximity of a base station are determined. A received signal spectrum of signals received at the base station from the...
US20050090245 Mobile terminal with self performance diagnosis function and method thereof  
A mobile terminal with a self performance diagnosis function and a method thereof are provided. The mobile terminal has an RF switch connected between an output end of a transmitter and an input...
US20110053632 ANTENNA TRANSMITTING POWER MONITORING AND/OR CONTROLLING  
A method and system for controlling the transmitting power of an antenna is provided, the system including a detecting device directly receiving signals from the antenna, the detecting device...
US20100233975 AUTOMATED POWER CONTROL TO OPTIMIZE POWER CONSUMPTION AND IMPROVED WIRELESS CONNECTION  
A method for automatically adjusting signal output power of a ZigBee wireless module. The method includes sending a signal with an output power from a transmitter of a ZigBee module to a receiver....
US20070076640 Method and system for indicating wireless interconnectivity  
A method and system for indicating wireless interconnectivity between at least two electronic devices is useful for configuring wireless networks. The method includes activating at each device a...
US20050032472 Method and apparatus of estimating non-linear amplifier response in an overlaid communication system  
An approach is provided estimating non-linear characteristics of an amplifier (such as a Travelling Wave Tube Amplifier) used to amplify a composite signal in a radio communication system. The...

Matches 1 - 50 out of 153 1 2 3 4 >