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7392015 |
Calibration methods and structures in wireless communications systems
Calibration methods and structures are provided for wireless communications devices that compensate across a signal bandwidth for relative gain and phase errors between spatial communication...
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7389097 |
Receiver, transceiver circuit, signal transmission method, and signal transmission system
A receiver has an offset application circuit for applying a known offset to an input signal, and a decision circuit for comparing the offset-applied input signal with a reference voltage. The level...
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7386289 |
Microwireless integrated environmental sensor and transmitter system
The invention is a microminiature wireless environmental sensor that has integrated both sensor and transmitter functions into one function. The basic operating principle for the device is that...
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7386288 |
Input signal detecting apparatus and method
An input signal detecting apparatus and method in a digital receiver is provided. The input signal detecting apparatus includes an outer AGC for receiving an input signal and thereby controlling...
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7386277 |
Communication system and method for increasing communication efficiency
A mobile communication system capable of increasing communication efficiency and a method therefor are provided, including a receiver for grouping n MCS levels (where n>0) into continuous m MCS...
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7386063 |
Voting block for identifying WLAN signal modulation type
A WLAN device operating in an 802.11g mode can receive signals of different modulations. A technique is provided that quickly and accurately identifies signals of different modulation types when...
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7379864 |
Method and apparatus for the detection of previous packet loss in non-packetized speech
A method and apparatus for detecting previous packet loss in non-packetized speech by applying one or more filters to a segment of said non-packetized speech, each of said one or more filters...
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7376404 |
System and method for detecting a fault in a multiple receiver system
A system and method for receiving output signals from each receiver of multiple receivers, the output signals generated based on receipt of a same transmission; incrementing a count value...
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7373130 |
Simultaneous channel estimation of a carrier and an interferer
Interference suppression in a receiver in a wireless network that utilizes training sequences for synchronization and channel estimation, wherein the training sequence of an interfering channel...
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7373124 |
Receiver
A receiver includes a tuning circuit for picking up a reception signal having a desired frequency, a local oscillator for forming an oscillation signal, a first mixer for frequency-converting the...
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7373117 |
Power control in telecommunications networks
A radio frequency transmitter is power controlled using a controlling system including an integrating controller, together with an inner and an outer control loop. A tracking signal supplied by the...
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7369523 |
Data signal demodulation in a communication system
A method described evaluates the pilot-to-data power ratio based on the values of the demodulated data at the output of a receiver such as a conventional maximal ratio combiner or an equalizer...
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7366508 |
Radio access point testing method and testing apparatus
The normality verification and radio characteristics test of a radio communication system are executed. RF-SWs (radio-frequency coaxial switches) change-over the paths of signals which are...
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7366490 |
Automatic gain control with gain stepping and regulation
An automatic gain control device and a related method for its operation, using a first-order control loop for adjusting a received communication signal to compensate for variations in received...
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7366475 |
Signal strength measurements in cellular telecommunication systems
A mobile station (MS) and method for estimating received signal strength of a radio signal from a neighboring cell in a cellular radio telecommunication network. The MS measures the received signal...
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7363011 |
Method and apparatus for estimating the impulse response of a radio channel based on a calculated correlation sequence
A method and a correspondingly operative radio receiver ( 10 ) (in either user equipment or a base transceiver station of a cellular telecommunication system) by which the radio receiver ( 10 ), in...
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7359707 |
Wireless communications handoff method and system employing such
A method for reducing a delay in a wireless communications system resulting from a handoff while mitigating a risk of premature termination of wireless communications, the method includes comparing...
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7359689 |
Wireless receiving method
A wireless receiving method includes calculating a transmission channel response from a reception signal and a reference signal, determining reliabilities of a plurality of transmission channel...
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7349670 |
Modular wireless test architecture and method
A modular test chassis for use in testing wireless devices includes a backplane and a channel emulation module coupled to the backplane. The channel emulation module comprises circuitry for...
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7346477 |
Testing a station's response to a reduction in wireless signal strength
Techniques for testing a station, such as a wireless-enabled device, are described. A first method relates to evaluating a station configured to communicate with at least one access point. Another...
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7346321 |
Apparatus for associating access points with stations using bid techniques
The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network...
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7343143 |
Radio receiver with operation state setting unit
There is provided a radio receiver which can set a proper receive state regardless of the existence of an adjacent station. If an adjacent station detection circuit detects an IBOC station having a...
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7340248 |
Calibration apparatus
In a calibration apparatus, which calibrates the phases of main signals input to each of the antenna elements of an array antenna, a calibration signal generation portion generates calibration...
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7340234 |
UWB transmitting and receiving device for removing an unnecessary carrier component in a transmission signal spectrum
An Ultra Wide Band (UWB) transmitting and receiving device that includes a Digital Signal Processor (DSP) for implementing a DC offset cancellation algorithm, an adder for adding a baseband...
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7339983 |
Apparatus and method for detecting a power ratio between a traffic channel and a pilot channel in a mobile communication system
An apparatus and method for detecting a power ratio between a traffic channel and a pilot channel in a mobile communication system. The apparatus is operable to generate a second signal by...
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7333788 |
Method for calibrating automatic gain control in wireless devices
Disclosed herein is an iterative process for calibrating an AGC in a wireless system, wherein the iterative process includes transmitting a calibration signal, receiving the calibration signal,...
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7333775 |
Method for detection of radio communication terminals
A method detects which radio communication terminals use interference suppression procedures, in a radio communication system. Here radio communication terminals periodically return measurement...
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7328019 |
Communication environment measurement method for mobile station and the mobile station
In a communication system for respectively transmitting pilot signals from a plurality of base stations to a mobile station via a first channel and also for transmitting data from one base station...
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7327990 |
Reception diversity system and control method therefor
In a reception diversity system, a wireless apparatus includes an RF unit, analog signal processing unit, digital signal processing unit, and a control unit which controls the RF unit. The control...
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7319847 |
Bitwise monitoring of network performance
The present invention provides for a method and system for measuring data quality of service in a wireless network using multiple peripatetic (i.e. mobile) and/or stationary, unattended, position,...
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7315748 |
Method of informing uplink synchronization using downlink TPC bit patterns
A method of informing a terminal of uplink synchronization acquisition in a mobile communication system by using downlink transmit power control (TPC) bits. The base station modifies and transmits...
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7315731 |
Method of measuring and calibrating frequency down converter
A frequency down converter that maintains accuracy even if the frequency pass band is wide uses a reference frequency band within the frequency pass band, the reference frequency band being...
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7313366 |
Radio communications unit
There is described a radio communications system, including a unit which is able to communicate over a radio communications network such as a satellite or cellular system, and is also able to...
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7310538 |
Symbol estimation-based decorrelator for directing beams and nulls to remote users in a wireless communications system
Spatial and temporal characteristics of received radio signals in a multiple user radio system can be estimated based on signals received from the users. In one embodiment, the invention includes...
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7310504 |
IF frequency response characterization employing overlapping frequency bands
A method and system characterizes an IF response of a receiver under test, such that an effect on the characterization by errors associated with uncertainties in knowledge of an RF stimulus signal...
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7310503 |
Diversity reception device and diversity reception method
The circuit size of a diversity receiver for an orthogonal frequency division multiplexing signal is reduced, and the diversity effect is increased, by providing a power ratio comparator that...
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7302276 |
Method and system for determining uplink/downlink path-loss difference
Methods and apparatus are described for estimating a path-loss difference between uplink and downlink communications at a first node communicating with a second node in a communication system. A...
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7299021 |
Method and apparatus for scaling the dynamic range of a receiver for continuously optimizing performance versus power consumption
Methods and apparatus are disclosed for operating a RF receiver. The method executes, during operation of the RF receiver, by periodically determining existing RF receiver operational conditions;...
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7295844 |
System and method for routing communications based on wireless communication link quality
A method for routing communications at a mobile station includes determining, at a mobile station, one or more routing metrics that are associated with each of a number of communication paths that...
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7295813 |
Current reduction by dynamic receiver adjustment in a communication device
A method for reducing current drain in a communication device includes a first step of detecting interference including intermodulation and crossmodulation products. A next step includes...
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7292830 |
Receiver gain management
Noise floor searching is performed for a cellular base station to increase accuracy of receiver gain estimates. This allows adjustment of gain in a radio module to account for gain in front-end...
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7289781 |
Device for receiving digital signals
A device for receiving digita1 signals comprising at least one receiving antenna for receiving signals, a measuring means for determining parameters of relevance to signal quality of signals...
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7280611 |
Nonlinear distortion compensating device
A nonlinear distortion compensating device splits its operation into two processes. One is a compensation & amplification process for providing a receipt signal with a distortion compensating...
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7280077 |
System and method for measuring radiation characteristic of antenna
An antenna measurement system is provided to measure the radiation characteristic of a source antenna ( 2 ), and obtain more correct far-field range data within a short period of time. The antenna...
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7274932 |
Expert system for troubleshooting cellular site problems
A method of troubleshooting a cellular network problem is provided. The network problem and the facts regarding the problem are input. This input is sent to an inference engine which determines...
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7274912 |
Method for regulating transmission power in a radio system
A method regulates the transmission power of a transmitter in a radio system, for a transmission of data to a receiver by a radio interface. The receiver determines an actual value for a...
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7269404 |
Radio-frequency receiving apparatus
The subject invention provides a radio-frequency receiving apparatus including a built-in test signal source for producing a radio-frequency test signal. This structure achieves cost reduction, as...
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7266350 |
Radio frequency tuner
A tuner for analogically and digitally modulated signals comprises a single tuner arrangement for converting any selected analog or digital channel to baseband or zero 1F quadrature signals. Simple...
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7262724 |
System and method for adjusting dynamic range of analog-to-digital converter
Techniques for adjusting the dynamic range of an A/D converter in response to various conditions are disclosed. A value output by the A/D converter is utilized to determine if the A/D converter is...
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7257411 |
Selective fusion location estimation (SELFLOC) for wireless access technologies
In an RF environment serviced by 802.11, Bluetooth(™), or other network transmitters, or combinations, location-estimation methods and systems can advantageously use redundancy to refine an...
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