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8185063 |
Impedance matched transmitting arrangement
A transmitting arrangement includes a matching circuit, a reference circuit and a comparator. The output of the matching circuit can be coupled to an antenna and comprises an adjustable impedance....
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8175536 |
Wireless communication system, wireless communication apparatus and communication control method
A channel estimation and prediction unit 18 estimates a channel and predicts a plurality of channels for a next transmission slot. An SVD unit 19 performs singular value decomposition on a...
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8175549 |
Closed loop transmitter IQ calibration
A novel and useful apparatus for and method of closed loop IQ calibration for use in a transmitter. The IQ calibration mechanism functions to provide calibration of IQ imbalance in the presence of...
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8175608 |
Node placement method within a wireless network, such as a wireless local area network
The disclosure includes a method of and associated system for placing nodes in a wireless local area network (WLAN). The method includes receiving user-specified parameters regarding the network....
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8175512 |
Look through mode of jamming system
A system includes a generator and at least one device. The generator includes a waveform oscillator and a blanking pulse generator. Each device includes a transmit antenna, a receive antenna, an...
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8170467 |
Multi-band jammer including airborne systems
An airborne jammer for transport by an aircraft for jamming communications in a communications system where the communications system operates with digital bursts having burst periods measured in...
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8170543 |
Code domain power display
A method for displaying multiple orthogonal code layers on a display device wherein a first axis is indicative of the identity of the code channel of a signal and a second axis is indicative of a...
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8170622 |
Mobile communication network system and location registration method
The mobile communication network system having a plurality of mobile communication systems each including a base station performing wireless communications with a mobile station, comprises a...
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8170506 |
Direct current (DC) offset correction using analog-to-digital conversion
Techniques for reducing or eliminating DC (direct current) offset in transmitters are disclosed. An apparatus for DC offset reduction may include a converter, a digital engine, and a plurality of...
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8170505 |
Driver amplifier having a programmable output impedance adjustment circuit
A driver amplifier in an integrated circuit is suitable for driving a signal onto an output node and through an output terminal, and through a matching network to a power amplifier. A novel...
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8165537 |
Wireless transmitter and wireless transmission method
A wireless transmitter of the present invention includes n (n being an integer of 2 or more) transmission antennas, a transmission circuit controller that, based on reception qualities reported...
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8159377 |
System, method, and circuitry for blind timing mismatch estimation of interleaved analog-to-digital converters
A timing skew estimation system is disclosed that includes a plurality of interleaved analog-to-digital converter circuits (ADCs), a timing mismatch estimation unit, and a correction unit. The...
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8160515 |
Negative amplitude polar transmitter
A polar transmitter includes a phase monitoring unit for monitoring input modulating data. When a phase transition exceeds a phase transition threshold, the phase monitor unit can signal an...
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8160514 |
Transmission noise cancellation
Exemplary embodiments of the disclosure are directed to down-converting an RF signal of a transmitter to baseband, filtering the down-converted signal, and generating a composite signal based on...
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8160574 |
Wireless architecture utilizing geo-referencing
A wireless communication system for use in a process control environment includes a reference node adapted to determine geographic positions of at least some of the reference node, a base node, and...
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8155690 |
Transmission power target value variable control apparatus and method and mobile communication terminal
A T-SIR generation unit (106a) generates, on the basis of an actual reception quality (205) in a mobile communication terminal, a target value T-SIR to be used to control transmission power of a...
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8149797 |
Visualization of RF neighbor correlation in a single view
A system for generating a single view of wireless data including two perspectives and corresponding method therefor are described. The system comprises a device information collection mechanism...
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8150343 |
Dynamic stability, gain, efficiency and impedance control in a linear/non-linear CMOS power amplifier
A power amplifier (PA) provides dynamic stability and gain control for linear and non-linear operation. The PA operates with a baseband processor and a transmitter, in which the PA receives a...
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8149810 |
Data rate adaptation in multiple-in-multiple-out systems
A transmit data rate adaptation method in a multiple-in-multiple-out (MIMO) system with a first transceiver and a second transceiver. The first transceiver transmits signals to the second...
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8150331 |
Method for adapting the signal transmission between two electronic devices, as well as arrangement with a computer system and a peripheral device
A method for adapting the signal transmission between two electronic devices (1, 2) that are connected to each other via a physical interface and that each have a transmitter (8a, 8b) and a...
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8150337 |
Wireless communication device, communication state notification method, wireless communication system and program
There is provided a wireless communication device forming an autonomous distributed wireless network by intermittently transmitting and receiving a predetermined communication management signal,...
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8150469 |
Adaptive array base station device and adaptive array base station device control method
An array antenna forming unit (22) combines at least two transmission/reception devices (40) to thereby sequentially form one array antenna. Every time an array antenna is formed, an array antenna...
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8150447 |
Multi mode outer loop power control in a wireless network
A method and arrangement is provided for adjusting the transmission power of radio signals sent over a radio link from a second node to be received by a first node reducing the transmission power...
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8150341 |
Apparatus for transmitting a signal below a standard 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...
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8145146 |
RF transmitter front-end and applications thereof
A radio frequency (RF) transmitter front-end includes a digital to analog conversion module and a power amplifier module. The digital to analog conversion module is coupled to convert amplitude...
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8145153 |
Method and system for calibrating an analogue I/Q-modulator of a transmitter
The invention relates to a method and a system for calibrating an analogue I/Q-modulator (2) of a transmitter (3), wherein a calibration signal (s(tk)) is transmitted and an in-phase signal...
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8145149 |
Operating a voltage regulator at a switching frequency selected to reduce spurious signals
Embodiments for at least one method and apparatus of a wireless transceiver are disclosed. For one embodiment, the wireless transceiver includes a transmit chain, wherein the transmit chain...
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8145151 |
Hybrid switched mode/linear mode power amplifier control
In one aspect of the exemplary embodiments of this invention a method includes determining, based at least in part on a number of resource blocks to be transmitted, where the resource blocks may be...
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8145152 |
Gain temperature compensation circuit
A gain temperature compensation circuit producing a relatively small loss of power, and enabling modification of a variation width of the attenuation amount in a predetermined temperature range is...
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8145154 |
Approximation method for signal-to-noise ratio soft information for a communications system
An approximation method for SNR soft information for a transmitter of a communications system includes obtaining a conditional probability density function (PDF) corresponding to a response message...
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8140105 |
Method for controlling output power in a radio communications network
The present invention presents a method for controlling output power and reducing interference in a radio communications network wherein data transmitted over a radio interface is coded and...
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8140020 |
Radio frequency calibration apparatus and method for multi-antenna mobile communication system
There is provided to an RF calibration apparatus and method for a multi-antenna mobile communication system, which calibrates a phase error and gain error of an RF path by calculating the minimum...
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8140003 |
Method and apparatus for supporting multi-hop communications in a peer to peer communication system
Methods and apparatus for wireless communications in networks, e.g., regional ad hoc peer to peer networks, are described. A communications node, e.g., a third node monitors for wireless...
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8140033 |
Method for automatic impedance matching for a radiofrequency circuit and transmission or reception system with automatic matching
The invention relates to a method for automatically matching the antenna impedance for a radiofrequency transmission circuit having an amplifier. An impedance matching network is inserted between...
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8140032 |
Antenna system and diagnosis method for a vehicle access control system
An antenna system (10, 11) with a plurality of individual antennae (14) in each case connected in a separate drive path (12), to which a common signal transmitter (16) is assigned, and with a...
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8140128 |
Portable cell phone and a proximity regulation system for use with a portable cell phone
Proximity regulation systems for use with a portable cell phone and portable cell phones are disclosed. In one embodiment, a portable cell phone includes a proximity regulation system having a...
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8140007 |
Radio system and method for relaying radio signals with a power calibration of transmit radio signals
The present invention provides a radio system and a method for relaying radio signals, providing a power calibration of transmit radio signals. With the radio system and the method no dedicated...
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8140009 |
Circuit and data carrier with radio frequency interface
A circuit (12) comprises a first circuit point (13) and a second circuit point (14), which first circuit point (13) and second circuit point (14) are designed to be connected with RF transmission...
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8135055 |
I/Q calibration of transmit and receive paths in OFDM FDD communication systems
I/Q gain and phase mismatches of both transmit and receive paths of an OFDM FDD transceiver are simultaneously estimated. An up-converted RF signal is generated when the transmit path performs IQ...
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8135361 |
Polar modulation transmission apparatus
By compensating for a detection result of the detector in feedback control of output power of the power amplifier, the polar modulation transmission apparatus is able to realize accurate...
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8131224 |
Delay, gain and phase estimation for measurement receivers
Phase and gain of a transmit signal are measured at a transmitter by determining a first time delay having a first resolution at a measurement receiver between a reference signal from which the...
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8131300 |
Routing protocol within hybrid-cellular networks
In order to establish routing to/from a base station within a hybrid-cellular network, each network element is assigned a “class” based on a received signal strength of the base station. Each net...
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8126499 |
Processing Qoffset parameter
Systems, methodologies, and devices are described that employ indicators related to a parameter value(s) associated with a neighbor cell to facilitate communication by a mobile device in a network....
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8126393 |
Gain adjustment apparatus, method, and tangible machine-readable medium thereof for a multiple input multiple output wireless communication system
A gain adjustment apparatus, a gain adjustment method, and a tangible machine-readable medium thereof for a multiple input multiple output (MIMO) wireless communication system are provided. The...
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8126404 |
Method and device for evaluating the energy level of a radio signal
To evaluate an energy level of a signal received through a radio interface between radiocommunication stations, successive measurement samples depending on the energy of the signal are obtained,...
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8126452 |
Systems and methods for self-calibrating transceivers
Techniques for self-calibration of transceivers are described herein.
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8126453 |
Radio frequency testing system and method of performing radio frequency test on a plurality of mobile communication devices
A radio frequency testing system and its method of performing a radio frequency test on a plurality of mobile communication devices are provided. The system simultaneously connects mobile...
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8121561 |
Power tuning system and method for power amplifier
An automatic power tuning system and method, and a transmitter employing either the system or the method. In one embodiment, the system includes: (1) a power detector circuit coupled to an output...
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8121646 |
Method and system for equalizing cable losses in a distributed antenna system
The invention is directed to a method and system for equalizing the signal losses over cable runs in a Distributed Antenna System (DAS). In a DAS, two or more antennae are connected to the system...
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8121647 |
Transmitting and receiving method, and radio apparatus utilizing the same
A processing unit transmits, from at least one of a plurality of antennas, data corresponding respectively to the plurality of antennas. A control unit generates request signals with which to let a...
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