Entries |
Document | Title | Date |
20080200129 | Method and apparatus for determining modulation levels that are supported on a channel - A logical channel is configured to match a modulation profile of an active channel. A network element is assigned to the logical channel and a ping request is sent to the network element. A response from the network element is measured, such as measuring the MER. The modulation profile is increased in the logical channel and another ping request is sent to the network element. The response is measured again, and the process is repeated until a non-linearity is detected in the response. The acceptable modulation profiles are indicated before the non-linearity is detected in the response. | 08-21-2008 |
20080268789 | Method and System for Determining the Amplitude and/or Phase of the Output Signal of a Transmission Link as a Function of the Amplitude of the Input Signal - A method and system for determining the amplitude and/or phase of the output signal of a transmission link according to the amplitude of the input signal (AM-AM and AM-PM characteristics). The response signal (e(t)) emanating from a test signal as a result of amplitudes and/or phase distortion in the transmission link is determined with respect to the associated amplitude characteristics (|e(t)|) and/or associated phase characteristics (φ | 10-30-2008 |
20080293365 | METHOD AND APPARATUS FOR MEASURING STATE OF PLURALITY OF CHANNELS AND FOR SELECTING IDLE CHANNEL - A method of measuring a state of a plurality of channels is provided. The method includes transmitting to a second device test signal information needed to transmit/receive a test signal for measuring the state of the plurality of channels; receiving an information received response from the second device, indicating that the second device has received the test signal; if the information received response is received, transmitting the test signal to the second device, using the test signal information, via the plurality of channels; and receiving from the second device the state information regarding the plurality of channels which has been measured by using the test signal. | 11-27-2008 |
20090011716 | SIGNAL LOSS DETECTOR FOR HIGH-SPEED SERIAL INTERFACE OF A PROGRAMMABLE LOGIC DEVICE - A loss-of-signal detector includes digital and analog monitoring of incoming data. The incoming signal is compared digitally to at least one predetermined pattern that may indicate a loss of signal, and also is monitored by an analog detector that detects transitions in the data. If the digital comparison fails to match any of the at least one predetermined pattern, or if transitions are detected by the analog monitoring, even if the digital comparison produces a pattern match, then loss of signal is not indicated. | 01-08-2009 |
20090036060 | WIRELESS TAG DETERMINATION METHOD, WIRELESS TAG DETERMINATION SYSTEM, READER CONTROL DEVICE, AND STORAGE MEDIUM - A system and method for determining a failed wireless tag includes capturing images of articles having wireless tags, recognizing an image including wireless tags from among captured images calculating a number of wireless tags and distance information from the reader to each wireless tag based on the recognized image including wireless tags; changing a read range of the reader based on a location wireless tag having a predetermined distance information from the reader; and changing the read range of the reader when a number of wireless tags read by the reader and a number of wireless tags calculated do not match and determining a failed wireless tag based on the changed read range and distance information calculated. | 02-05-2009 |
20090061782 | Method for Measuring Multiple Parameters of a Signal Transmitted by a Signal Generator - A method is disclosed for measuring one or more parameters of a signal generated by a signal generator. The method employs capturing and analyzing a train of data packets or other forms of signals from a single transmission to obtain measured values for the one or more parameters. The obtained measured values may be used in valuing a calibration of a signal generator or in verifying the already calibrated values of the signal generator. In accordance with a preferred embodiment, the train of data packets contains packets having different properties. | 03-05-2009 |
20090068957 | RFID READER COMPENSATING LEAKAGE SIGNAL AND COMPENSATING METHOD THEREOF - A radio frequency identification (RFID) reader includes a transmitter generating a transmission signal for transmission to a tag, a receiver receiving a response signal from the tag, a leakage compensator compensating a leakage signal leaked from the transmitter to the receiver in response to a leakage control signal, and a control unit performing a leakage test operation by applying a test signal to the transmitter, and calculating and storing a leakage parameter for generating the leakage control signal using a level difference of the test signal and a level difference of a test leakage signal leaked to the receiver. | 03-12-2009 |
20090075599 | SIGNAL QUALITY REPORTING - A radio station ( | 03-19-2009 |
20090143021 | TESTING OF AUTOMOBILE MOUNTED ANTENNAS - A method and device provides for the testing and validation of a control module for receiving wireless data and communications utilizes a transmission line coupler mounted proximate the control module generates a signal that couples to an antenna of the control module. The control module produces a signal in response to coupling of the antenna with the signal produced by the transmission line coupler. The resulting signal is utilized to check, verify and validate operation of the control module. | 06-04-2009 |
20090191819 | APPARATUS AND METHOD FOR CALIBRATION IN MULTI-ANTENNA SYSTEM - Apparatus and method for calibration in a multi-antenna system are provided. The method includes setting at least two transmission paths connected to antennas, respectively, as reference transmission paths, when receiving compensation signals transmitted in the reference transmission paths in at least two reception paths connected to the antennas, respectively, determining a phase difference of the reception paths using the received compensation signals, and calibrating the reception paths using the phase difference of the reception paths. | 07-30-2009 |
20090197540 | VIRTUAL MIMO SYSTEM AND APPARATUS THEREOF - The invention relates to a method of evaluating a virtual MIMO system's quality of a first group of mobile devices in a base station of a mobile communication system. The mobile communication system further comprises a plurality of mobile devices coupled to the base station, the base station is adapted for receiving uplink channel estimation coefficients of each mobile device of the plurality of mobile devices. The method comprises the steps of: selecting at least a first and second mobile device of the plurality of mobile devices; obtaining a first factor by calculating an inverse correlation between a first and a second vector; obtaining a second factor, the second factor being descriptive of an average receive power ratio between the first and second mobile devices; calculating the quality value of the virtual MIMO by combining the first factor and the second factor using an arithmetic operation, the quality value being descriptive of the virtual MIMO system's quality between the first and second mobile devices. | 08-06-2009 |
20090209210 | DRIVER CIRCUIT AND TEST APPARATUS - Provided is a driver circuit that outputs a transmission signal according to a reception signal received from outside, including a first driver that outputs a voltage according to an input first signal; a second driver that receives the voltage output by the first driver as a power supply voltage and outputs the transmission signal according to the power supply voltage and an input second signal; and a control section that delays both the first signal and the second signal, according to a change of the reception signal, and causes the transmission signal according to the reception signal to be output from the second driver. | 08-20-2009 |
20090215400 | PILOT SIGNAL TRANSMISSION MANAGEMENT - A base station transmits a pilot signal when the presence of a wireless communication device is detected. A wireless device detector receives a detection signal transmitted from a wireless communication device to determine the presence of the wireless communication device. | 08-27-2009 |
20090215401 | Apparatus and method for determining channel quality indicator (CQI) using beamforming in multi-antenna system - An apparatus and a method for determining a Channel Quality Indicator (CQI) using a beamforming in a multi-antenna system are provided. A transmitter for determining a CQI based at least partly upon the beamforming in the multi-antenna system includes a beam former for distinguishing frequency tone intervals having a constant channel across an entire frequency tone, forming a beam by multiplying frequency tones of the frequency tone interval having the constant channel by different beamforming weights, and transmitting a preamble signal. Hence, the users can be scheduled based at least partly upon the beamforming gain, and throughput can be enhanced through the practical MCS selection. | 08-27-2009 |
20090233558 | COMMUNICATION DEVICE AND METHOD USING HUMAN BODY - A communication device and method using the human body are provided. The communication device determines an arrangement direction of signal electrodes and ground electrodes according to a signal transmission direction and whether the ground electrodes come into contact with the human body according to a transmission/receiving distance and then performs data communication with the other communication device connected to the human body for the purpose of efficient human body communication. | 09-17-2009 |
20090247087 | METHODS AND APPARATUS FOR MEASURING ROUND-TRIP DELAY AT A MOBILE STATION - A method for measuring round-trip delay at a mobile station may include determining a first time difference between two different types of frames at a base station. The method may also include determining a second time difference between the two different types of frames at a mobile station. The method may also include calculating the round-trip delay based on the first time difference and the second time difference. | 10-01-2009 |
20090258602 | MULTI-PATH SIMULATION SYSTEM - A multi-path simulation system ( | 10-15-2009 |
20090275291 | STORAGE DEVICE - A storage device controls transmission of test data and reception of the test data according to a protocol set for test mode upon receiving, for example, a test instruction, when a reception interface and a transmission interface are electrically connected together through a cable. The storage device verifies whether the test data transmitted from any one of a controller, a buffer, and a storage medium matches the test data received by any one of them. | 11-05-2009 |
20090298440 | SYSTEM FOR CALIBRATING WIRELESS COMMUNICATIONS DEVICES - A wireless electronic device such as a portable electronic device may contain a baseband module. Power amplifier circuitry in the device may amplify radio-frequency signals for transmission. During calibration measurements, a computer directs the baseband module to generate control signals that adjust the gain of the power amplifier circuitry. The computer may also direct the baseband module to generate a series of modulated or unmodulated test tones at one or more communications channel frequencies. A power sensor may be connected to the output of the power amplifier circuitry using a transmission line path. The computer and power sensor may be used in making power measurements on radio-frequency signals at the output of the power amplifier while power amplifier gain and test tone frequency adjustments are being made. Power amplifier calibration data may be produced and stored in the electronic device based on the power measurements. | 12-03-2009 |
20090318091 | METHOD AND SYSTEM FOR BEAMFORMING TRAINING AND COMMUNICATIONS APPARATUSES UTILIZING THE SAME - A communications system including communications devices is provided. A communications device, a trainer, generates at least one concatenated training sequence, transmits the at least one concatenated training sequence, and receives one or more response messages describing corresponding channel characteristics from at least one of the rest of the plurality of communications devices. One or more of the rest of the plurality of communications devices, trainees, each receives the at least one concatenated training sequence, determines channel characteristics between the trainer and a trainee according to the at least one received concatenated training sequence, embeds channel characteristics information to generate at least one of the response messages, and transmits the response message. | 12-24-2009 |
20100041341 | METHOD AND APPARATUS FOR DETERMINING AN END OF A SUBFRAME IN A TDD SYSTEM - A method for determining an end of a first period in which signals are communicated in a first direction is provided. The method comprises sampling a signal for a period of time up to at least as long as the longest expected length of the first period to obtain a sampled signal. The sampled signal is integrated to obtain an integrated power curve. A reference line is subtracted from the integrated power curve to obtain a rotated power curve. A peak in the rotated power curve is selected as an end of the first period. | 02-18-2010 |
20100081392 | Method of Communicating by Radio Frequencies in a Home-Automation Installation - Method of communicating by radio frequencies in a home-automation installation comprising at least one command transmitter and at least one command receiver, comprising the following steps: receiving by virtue of a radiofrequency receiver of a command receiver a signal transmitted by a command transmitter, —measuring the power level of the signal received, comparing the power level measured with a power level recorded in a memory of powers that are blocked at the level of the command receiver, in the case where the measured power level corresponds to the power level recorded in memory, not processing the signal received. | 04-01-2010 |
20100099362 | Calibration Method and Device in Telecommunication System - A device system, computer medium and method for calibrating at least one impairment of a signal transmitted from a transmitting unit to a receiving unit, the method including receiving at the receiving unit at least two signals transmitted from the transmitting unit, estimating at the receiving unit, based on the received at least two signals, at least one parameter associated with transmit chain links between the transmitting unit and corresponding antennas of the transmitting unit, collecting the at least one parameter in a measurement report at the receiving unit, and transmitting the measurement report from the receiving unit for correcting the at least one impairment based on the at least one parameter. | 04-22-2010 |
20100120371 | MOBILE TERMINAL TESTER AND MOBILE TERMINAL TEST METHOD - The object of the present invention is to provide a mobile terminal tester which can reduce the production cost from that of the conventional mobile terminal tester. The mobile terminal tester according to the present invention comprises a plurality of base transceiver station simulators ( | 05-13-2010 |
20100190451 | METHOD FOR TESTING A MOBILE-RADIO DEVICE - A method for testing a mobile-radio device is provided. The method includes determination of information regarding at least one real mobile-radio network using a measuring device, and additionally and independently using a mobile-radio device. The method further includes analysis of the information, received through the measuring device and through the mobile-radio device, regarding the mobile-radio network using an analysis device, analysis of all signals incoming to and respectively outgoing from the mobile-radio device using an analysis device, conversion of the information into an instruction sequence, and simulation of the real mobile-radio network through the implementation of at least a part of the instruction sequence by the test device. | 07-29-2010 |
20100203841 | METHODS AND SYSTEMS FOR FOURIER-QUADRATIC BASIS CHANNEL ESTIMATION IN OFDMA SYSTEMS - Certain embodiments of the present disclosure relate to a Fourier-Quadratic (FQ) method for channel estimation that may help improve error rate performance of existing techniques, with only moderate increase in computational complexity. The proposed FQ scheme according to certain embodiments may provide a viable solution to the difficult channel estimation problem encountered in the Vehicular B channel with a long delay spread. Furthermore, a robustness of the proposed FQ channel estimation scheme to accommodate errors in a channel delay profile and to errors in a channel power profile is demonstrated through simulations. | 08-12-2010 |
20100233969 | RECONFIGURABLE CHAMBER FOR EMULATING MULTIPATH FADING - Disclosed is a compact reconfigurable channel emulator, which may be used to emulate severe fading environments and test wireless systems and subsystems for operation in severe channel environments. Examples include radios, coding schemes, diversity methods and antennas. In particular, the chamber is well suited to test hardware associated with wireless sensor deployments for these tend to be susceptible to severe fading scenarios. Moreover, the invention is significantly smaller than traditional testing instruments, and with its automation, reduces electromagnetic interference and electromagnetic compatibility testing time and costs. | 09-16-2010 |
20100248641 | TEST EQUIPMENT AND MOBILE RADIO DEVICE AND A METHOD FOR TESTING A MOBILE RADIO DEVICE - The invention relates to a method for testing a mobile radio device comprising at least one first antenna ( | 09-30-2010 |
20100323633 | METHOD AND APPARATUS FOR DETECTING AND MEASURING FOR HOME NODE-BS - Methods and apparatus are disclosed for a wireless transmit/receive unit (WTRU) to detect and perform measurements with respect to Home Node-Bs (HNB) and Home evolved Node-Bs (H(e)NB) (collectively “HNB”). The methods may include generating and transmitting a request for a measurement configuration that may include gap allocations to detect and measure a primary scrambling code or a physical cell identity of a target HNB for at least one frequency or radio access technology (RAT). The request may be in response to the WTRU entering a HNB cell for which the WTRU has stored fingerprint information and whose closed subscriber group ID is in the WTRU's whitelist. The network may configure the WTRU to measure the requested frequency or RAT in response to the proximity report/request. Methods are described for releasing the measurement configuration. | 12-23-2010 |
20110003558 | COMMUNICATION SYSTEM AND MAINTENANCE METHOD - A maintenance method and system is provided. The method includes providing a device comprising a thru state switch and condition circuits. The device is permanently connected between a feed system and an antenna. The device receives a first control signal and disables a connection between the analyzer and the antenna. The device receives additional control signals and enables conditions. The device generates altered responses of the feed system. The altered responses are associated with the conditions. The altered responses are used to normalize an analyzer and the feed system or troubleshoot a communication system. | 01-06-2011 |
20110003559 | RADIO STATION APPARATUS, RADIO RESOURCE CONTROL METHOD, RECORDING MEDIUM STORING RADIO STATION CONTROL PROGRAM, AND RADIO COMMUNICATION SYSTEM - To suppress, when communication is performed between two radio stations, interference on other radio stations located in the vicinity of them. A femto base station | 01-06-2011 |
20110053518 | WIRELESS COMMUNICATION PERFORMANCE TEST METHOD, WIRELESS COMMUNICATION TEST-USE MEASUREMENT DEVICE, AND WIRELESS COMMUNICATION PERFORMANCE TEST SYSTEM - A wireless communication performance test method for testing a performance of a wireless processor which is arranged in a wireless transmission device for performing a transmission and reception operation of a wireless signal, includes operations of transmitting, performing, and measuring. The operation of transmitting is for transmitting, to the wireless processor, a wireless signal including control information for controlling the transmission and reception operation performed by the wireless processor from a wireless transmission test use measurement device for measuring a wireless transmission performance of the wireless processor. The operation of performing is for performing the transmission and reception operation in the wireless processor based on the control information extracted from the wireless signal transmitted from the wireless transmission test use measurement device. The operation of measuring is for measuring the wireless signal transmitted and received in the transmission and reception operation performed by the wireless processor. | 03-03-2011 |
20110076960 | APPARATUS AND METHOD FOR MEASURING A FEMTO BASE STATION OF USER EQUIPMENT REGISTERED TO FEMTO BASE STATION IN MOBILE COMMUNICATION SYSTEM - An apparatus and a method for measuring a signal from a femto Base Station (BS) of a User Equipment (UE) registered to the femto BS in a mobile communication system are provided. An operating method of a femto BS for measuring the signal from the femto BS of a UE registered to the femto BS in a mobile communication system where the femto BS and a macro BS coexist, includes, when the UE registered to the femto BS is located in a service coverage area of the macro BS, generating a paging message informing of the existence of the femto BS, and sending the generated paging message to the UE. The UE measures the signal from the femto BS based on the paging message, generates a measurement report message including a measurement result, and sends the generated measurement report message to the macro BS. | 03-31-2011 |
20110076961 | Systems and Methods for Controlling the Second Order Intercept Point of Receivers - In accordance with some embodiments, methods for controlling the second order intercept point in a receiver are provided, the methods comprising: generating an amplitude modulated test tone; causing the test tone to be received by a receiver; determining a characteristic of a second order intercept point of the receiver based on the received test tone; and based on the characteristic, adjusting a parameter of the receiver. In accordance with some embodiments, systems for controlling the second order intercept point in a receiver are provided, the systems comprising: a test tone generator that generates an amplitude modulated test tone; a receiver that receives the test tone; a correlator that determines a characteristic of a second order intercept point of the receiver based on the received test tone; and digital logic that, based on the characteristic, adjusts a parameter of the receiver. | 03-31-2011 |
20110105048 | RADIO RECEIVING APPARATUS, AND EXTRA-USE-UNIT-BAND REFERENCE SIGNAL MEASUREMENT METHOD - A radio receiving apparatus and a reference signal on an unused unit band measurement method wherein QoS can be maintained and measured in a wireless communication system that simultaneously uses first and second frequency bands, each of which includes a plurality of unit bands, to transmit a series of data signal sequences. In a terminal ( | 05-05-2011 |
20110124295 | METHODS AND SYSTEMS FOR TESTING CELL PHONES WITH MULTIPLE ANTENNAS - The present invention relates to testing cell phones that simulates network conditions. In particular, it relates to new testing capabilities for simulating changes in correlation characteristics of signal components delivered to a cell phone. Correlation characteristics express changing environmental conditions and physical relationships among antennas in the cell phone and at base stations. | 05-26-2011 |
20110124296 | METHOD AND SYSTEM FOR DETERMINING THE AMPLITUDE AND/OR PHASE OF THE OUTPUT SIGNAL FOR A TRANSMISSION BODY DEPENDING ON THE AMPLITUDE OF THE INPUT SIGNAL - A method and a system for determining the amplitude and/or the phase of the output signal of a transmission link dependent upon the amplitude of the input signal (AM-AM and/or AM-PM characteristic) impresses a test signal (s(t)) on the transmission link, measures the response signal (e(t)) resulting from the test signal (s(t)) by amplitude and/or phase distortion in the transmission link and determines the amplitude response (|e(t)|) of the response signal (e(t)) and/or the phase responses (φ | 05-26-2011 |
20110183628 | METHOD AND SYSTEM FOR MATCHING AN INTEGRATED FM SYSTEM TO AN ANTENNA UTILIZING ON-CHIP MEASUREMENT OF REFLECTED SIGNALS - Aspects of a method and system for matching an integrated system to an antenna utilizing on-chip measurement of reflected signals are provided. In a chip comprising at least a portion of a receiver and at least a portion of a transmitter, a best impedance match between an antenna and the chip may be determined based on on-chip measurement of one or more signals reflected from the antenna. The best impedance match between the antenna and the chip may be determined utilizing a correction algorithm. The correction algorithm may be determined utilizing data from an external test set that measures signals transmitted by the chip via the antenna. The reflected signals may be routed to a signal analyzer via on on-chip directional coupler. The best impedance match may be determined for each of a plurality of frequencies and/or each of a plurality of transmit signal strengths. | 07-28-2011 |
20110217937 | METHOD AND APPARATUS TO GENERATE WIRELESS TEST SIGNALS - A method of generating a noisy receive signal for testing the performance of a mobile wireless communication device is described. A signal generator unit generates a transmit signal that frequency hops among a set of carrier frequency channels in a cyclic pattern having a time duration T. A wireless channel emulator unit generates a receive signal by modifying the transmit signal and also generates an interference signal by modifying the receive signal. The wireless channel emulator unit delays the interference signal relative to the receive signal by an integer multiple of the time duration T. The receive signal and the interference signal are combined by a combiner unit to generate the noisy receive signal. | 09-08-2011 |
20110237202 | BASE STATION APPARATUS, MOBILE STATION APPARATUS, MOBILE COMMUNICATION SYSTEM AND COMMUNICATION METHOD - A base station apparatus, in a mobile communication system comprised of a plurality of base station apparatuses for performing transmission using mutually different frequency bands and a mobile station apparatus capable of concurrently communicating with each of the base station apparatuses, makes a determination whether the mobile station apparatus needs to perform Inter-Frequency Measurement to communicate with the plurality of base station apparatuses, and when Inter-Frequency Measurement is needed, based on the number of frequency bands of base station apparatuses that concurrently communicate with the mobile station apparatus and the number of frequency bands that the mobile station apparatus is capable of concurrently receiving, selects one of a first Inter-Frequency Measurement method without the need for providing a measurement gap in one of the frequency bands, and a second Inter-Frequency Measurement method with the need for providing a measurement gap in one of the frequency bands. | 09-29-2011 |
20110319034 | METHOD AND SYSTEM FOR PROPAGATION TIME MEASUREMENT AND CALIBRATION USING MUTUAL COUPLING IN A RADIO FREQUENCY TRANSMIT/RECEIVE SYSTEM - A method and system use the mutual coupling property of multiple antenna elements for measuring differences in propagation time among various signal paths involving antenna elements in a radio frequency transmit/receive system. The method and system alleviate the need for external test equipment by using the same hardware used in standard operation of the transmit/receive system for performing propagation time measurement through the generation, mutual coupling, and acquisition of a specially selected reference signal. In an embodiment involving calibration of various signal paths to realize matched propagation times, the signal energy returned through these various paths during standard system operation arrives for acquisition more closely coincident in time, increasing the instantaneous bandwidth of the system. | 12-29-2011 |
20120028587 | DUAL-FEED ANTENNA ARRAY WITH INTEGRAL COMPARISON CIRCUIT FOR PHASE AND AMPLITUDE CALIBRATION - A two-element array antenna system includes a first antenna element and a second antenna element. A transmitting, receiving, and processing (TRP) system is coupled to the first and second antenna elements via, respectively, a single first transmission element and a single second transmission element. The first and second transmission elements have respective transmit-path and receive-path functionality. The TRP system is configured to determine an amplitude offset and phase offset associated with the transmit-path functionality of the first and second transmission elements, and, based on data obtained during the determination of amplitude offset and phase offset associated with the transmit-path functionality of the first and second transmission elements, determine an amplitude offset and phase offset associated with the receive-path functionality of the first and second transmission elements. | 02-02-2012 |
20120045998 | TESTING SYSTEM AND MEASURING METHOD THEREOF FOR MEASURING WIRELESS NETWORK SIGNAL - A testing system and measuring method thereof for measuring wireless network signal are provided. The testing system comprises a control switch, a first base station emulator and a signal measurer. The first base station emulator and the signal measurer connect to the control switch respectively. A device under test (DUT) connects with the testing system via the control switch. The first base station emulator transmits a first channel setting signal to the DUT via the control switch so that the DUT can communicate with the testing system via a first channel. The first base station emulator transmits a plurality of first testing messages to the DUT via the control switch so that the DUT can transmit a plurality of first response messages back according to the first testing messages. The control switch further receives the first response messages from the DUT and then transmits them to the first base station emulator and to the signal measurer at the same time. The first base station emulator calculates a first bit error rate and the signal measurer determines a first signal quality of the DUT both according to the first response messages. | 02-23-2012 |
20120100814 | Splitter with Adaptive Power Distribution - The invention relates to a splitter ( | 04-26-2012 |
20120129467 | DYNAMIC RECONFIGURATION OF REGULATION-COMPLIANCE MODE IN COGNITIVE RADIO NETWORKS - A method for dynamically reconfiguring a regulation-compliance mode of a device, belonging to a wireless network and operating under a network-operation mode ( | 05-24-2012 |
20120135692 | WIRELESS REMOTE CONTROLLED DEVICE SELECTION SYSTEM AND METHOD - The invention relates to a wireless remote controlled device selection system for selecting devices. Signal processing provides information for a remote control device. This information is indicative of the angle between the remote control device and the various devices from which a device should be selected. By analyzing the angular deviations, the desired device can be selected. | 05-31-2012 |
20120142277 | INTELLIGENT COUPLER - In accordance with an embodiment of the invention, there is provided an antenna coupler for providing a radio frequency interface between a radio frequency electronic system of a unit under test and automatic test equipment for the radio frequency electronic system. The antenna coupler comprises a mechanical interface to secure the antenna coupler to an antenna site of the unit under test, and a radio frequency signature storage component comprising a stored representation of a radio frequency signature comprising radio frequency test output. | 06-07-2012 |
20120157005 | APPARATUS FOR THE SELF HEALING OF THE GAIN OF BROADBAND RECEIVERS - An integrated RF device includes at least one RF amplifier configured to be electrically coupled alternatively to a selected one of a RF signal input and a RF test source. A first mixer stage includes a first local oscillator and is electrically coupled to the at least one RF amplifier. At least one second mixer stage includes a second local oscillator and is electrically is coupled to the first mixer. The at least one baseband amplifier is electrically coupled to the second mixer. At least a selected one of the RF amplifier and the baseband amplifier has at least one actuator and at least one actuator terminal configured to provide an actuator setting. A method to self-heal an integrated RF receiver device is also described. | 06-21-2012 |
20120157006 | APPARATUS AND METHOD FOR COMPENSATING THE AXIAL RATIO OF AN ANTENNA FOR TESTING RFID TAGS - A method for compensating the axial ratio of an antenna for testing radio-frequency identification (RFID) tags and an apparatus using the method are provided. The method includes the following steps. An initial location of the RFID tag (or a tagged product) is set to obtain an initial vector. The RFID tag and the antenna are respectively rotated with a first axis and a second axis to detect characteristics of the RFID tag in all directions, and the first axis and the second axis are perpendicular. A polarization angle of the RFID tag is calculated according to the initial vector of the RFID tag and a location of the RFID tag after rotation. A compensation value is obtained through a look up table according to the polarization angle, so as to compensate for the axial ratio of the antenna. | 06-21-2012 |
20120157007 | RADIO STATION - A radio station connected to another radio station via a radio link and identifying a fault of the radio link, including: a radio link controlling unit, a statistical information acquiring unit and a fault identifying unit wherein the radio link controlling unit executes radio link control of the radio link in accordance with a radio link control scheme, the statistical information acquiring unit acquires statistical information indicating a state of the radio link during the execution of the radio link control, and the fault identifying unit identifies the fault of the radio link from among a plurality of faults associated with statistical information, on the basis of the statistical information acquired by the statistical information acquiring unit. | 06-21-2012 |
20120178378 | WIRELESS TEST SERVER AND METHOD FOR TESTING ELECTRONIC DEVICES - In a method for testing electronic devices using a wireless test server, the server communicates with one or more workstations through a radio frequency unit. Each of the workstations includes a signal converter and a universal asynchronous receiver-transmitter (UART) adaptor. The server predefines an ID number for each of the workstations, and creates a wireless connection between the wireless test server and each of the workstations. The server generates a test command according to the ID number of the workstation, and converts the test commands into wireless signals and transmits each of the wireless signals to the UART adaptor corresponding to the workstation. Each of the signal converters converts the wireless signal received by the UART adaptor into a booting command. Each of the electronic devices performs a boot test operation according to the booting command, and generates a test result which is sent back to the test server. | 07-12-2012 |
20120208470 | FAULT DETECTION METHOD AND SYSTEM - A method of detecting faults in a member having a first and second face opposite each other and communicating fluidically in the presence of at least one fault; the method including the steps of: generating a first sound signal by means of a transmitter, so that the first sound signal interacts with at least one portion of the first face of the member; arranging a receiver, configured to receive a second sound signal, close to a respective portion of the second face of the member corresponding to the portion of the first face, the second sound signal being the outcome of the first sound signal interacting with the member; moving the receiver, close to the second face of the member; generating a detection signal, by means of the receiver, as a function of the received second sound signal; calculating, at a number of instants (t | 08-16-2012 |
20120252372 | MOBILE COMMUNICATION TERMINAL TEST SYSTEM, ANALYSIS METHOD, AND ANALYSIS PROGRAM - To enable addition or changes of functions with changes of communication standards in a mobile communication terminal test system. A mobile communication terminal test system includes a transceiver which has a control unit configured to append input information to acquired waveform data, a signal analysis unit which executes an analysis program, and a signal analyzer which is provided separately from the transceiver. The analysis program has a processing program which is provided for each type of arithmetic processing on the waveform data, a control program which is provided for each communication system, selects one or more processing programs for each test item, and executes the processing programs, and a switching program which specifies a communication system and a test item on the basis of the input information, and selects and executes a control program. | 10-04-2012 |
20120258672 | Method of transmission from multiple transmit chains based on a cost function for electromagnetic radiation - Embodiments of methods and apparatuses for transmission using a plurality of transmit chains based on a cost function for electromagnetic radiation are disclosed. One method is utilizing a plurality of chains, adjusting at least one of a phase or an amplitude of at least one of the transmit chains based on a cost function, wherein the cost function comprises a criterion for quality of reception at an intended receiver and a threshold for electromagnetic radiation. | 10-11-2012 |
20120282864 | Methods and Apparatus for Neighbor Cell Range Extension - A user equipment (UE) located in an extended-range area of a neighbor base station cell in a communication network, such as a low-power cell in a heterogeneous network, can inform its serving base station, such as a macro cell overlying the low-power cell, of the UE's capability of canceling interference from other cells' transmissions. That capability information enables the serving cell to decide based on more information whether range extension of the neighbor cell is beneficial for a number of UEs, and can result in more efficient radio resource utilization. | 11-08-2012 |
20120309323 | METHOD AND SYSTEM FOR SPATIAL RADIO-FREQUENCY PERFORMANCE TESTING BASED ON MULTIPLE-ANTENNA SYSTEM - A method and system for over the air performance testing based on a multi-antenna system are disclosed. The method comprises: a branch device mapping path signals from a channel emulator to test antennas according to the set number of the combined sub-paths and sub-path mapping rule; the test antennas transmitting spatial signals according to the path signals from the branch device; and a device under test receiving the spatial signals; and an over the air performance analysis and display module analyzing and displaying the over the air performance of the device under test based on the spatial signals received by the device under test. The present invention implements the test of the over the air performance of a multi-antenna terminal. | 12-06-2012 |
20130012139 | SIGNAL GENERATING DEVICE AND SIGNAL GENERATING METHOD - To provide a signal generating device and a signal generating method capable of correcting the frequency characteristics of the level of a broadband radio-frequency signal. A signal generating device | 01-10-2013 |
20130023218 | ADAPTIVELY OPTIMIZED METHOD AND SYSTEM OF PARASITIC ELEMENT SELECTION FOR SMART BEAM STEERING - A method at a device having an antenna and a plurality of parasitic elements, and the device, the method sensing a change in impedance of the antenna; selecting a subset of parasitic element options from a set of parasitic element options based on a stored table of impedances; if the subset of parasitic element options is greater than one, determining a channel quality measure for each parasitic element option within the subset of parasitic element options; and performing a beam steering action based on the change in antenna impedance and channel quality measure if determined, the beam steering action comprising selecting one or more of the plurality of parasitic elements to activate. | 01-24-2013 |
20130115892 | METHOD FOR MOBILE COMMUNICATION - A method for transferring audio data in a mobile radio network, the mobile radio network having a first mobile device in a first location and a second mobile device in a second location, includes: transmitting, by the first mobile device, a pilot signal to the second mobile device; measuring, by the second mobile device, a signal strength of the pilot signal; transmitting, by the second mobile device, information related to the signal strength of the pilot signal to the first mobile device; determining, by the first mobile device, the second location relative to the first location based on the information related to the signal strength; and transmitting, by the first mobile device, an audio signal based on the second location to the second mobile device. | 05-09-2013 |
20130137380 | METHOD AND SYSTEM FOR TESTING A WIRELESS NETWORK DEVICE - A method for testing a wireless network device includes: setting a preset number of test packet samples to be received by a test apparatus, setting wireless radio frequency (RF) parameters of the wireless network device, and setting wireless RF test parameters of the test apparatus; sending, by using the wireless network device, test packets according to the wireless RF parameters, and capturing, by using the test apparatus, the test packets according to the wireless RF test parameters, so as to generate test data until a number of the captured test packets reaches the preset number of test packet samples; and operating the test data to generate a test result, thereby increasing the test efficiency of the wireless network device and improving the utilization rate of the test apparatus. | 05-30-2013 |
20130149972 | Methods and Apparatus for Testing Radio-Frequency Power Amplifier Performance - Wireless communications circuitry such as radio-frequency power amplifiers may be tested using a test station. A test station may include a test host and a test unit coupled to the test host. The power amplifiers may be configured to transmit radio-frequency signals in allocated resource blocks within a particular radio channel. The power amplifier circuits may be configured to transmit signals utilizing only an allocated portion of its total available resource blocks so that the transmitted signals are output at maximum power levels. The power amplifiers may transmit in resource blocks near a low channel edge during a first time period and may transmit in resource blocks near a high channel edge during a second time period. The test unit may receive the signals generated from the power amplifiers and may perform desired radio-frequency measurements (e.g., test unit may measure adjacent channel leakage radio, signal-to-interference ratio, error vector magnitude, etc.). | 06-13-2013 |
20130157581 | WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION METHOD, COMPUTER PROGRAM, AND WIRELESS COMMUNICATION SYSTEM - A wireless communication apparatus includes: a first wireless communication section performing wireless communication on the basis of a first communication mode; a second wireless communication section performing wireless communication on the basis of a second communication mode using a different frequency band from the first communication mode; a beam learning signal generation section generating a beam learning signal for specifying a beam pattern at the time of the communication based on the second communication mode and transmitting the beam learning signal from the second wireless communication section; a response information acquisition section acquiring response information responding to the transmitted beam learning signal; and a preliminary information generation section generating preliminary information so as not to cause interference among a plurality of wireless communications using the second communication mode on the basis of the response information and transmitting the preliminary information from the first wireless communication section. | 06-20-2013 |
20130210370 | MEASUREMENT APPARATUS AND MEASUREMENT METHOD - The measurement apparatus | 08-15-2013 |
20130210371 | MOBILE COMMUNICATION TEST APPARATUS AND TEST METHOD - There is provided a mobile communication test apparatus for performing an operation test of a mobile communication apparatus which performs wireless communication by bundling a plurality of frequency blocks. The apparatus includes: a logical channel distribution section | 08-15-2013 |
20130244583 | Testing Method Detecting Incorrectly Connected Antenna Contacts - The invention concerns a testing method detecting misconnected mechanical contacts between off-chip antenna and on-chip antenna circuit, wherein the testing method is a Built-In Self-Test method including a step of measuring at least one electrical parameter of on-chip antenna circuit connected to off-chip antenna which is representative of state of connection of said mechanical contacts. | 09-19-2013 |
20130244584 | Methods, Test Systems and Arrangements for Verifying Compliance with Requirement Specifications - A method for verifying compliance of a communication device with one or more requirement specifications is disclosed. The method comprises establishing a link between a test system and the communication device, wherein the establishing comprises configuring one or more bearers and one or more control channels; closing a test loop comprising the test system and the communication device, wherein the closing comprises activating a test loop function of the communication device; sending data in a downlink of the test loop from the test system to the communication device; receiving the data at the communication device; transferring at least some of the data to an uplink transmission arrangement of the communication device after a specific event has occurred; and verifying, at the test system, transmission in an uplink of the test loop from the communication device to the test system. Corresponding test system and test loop function arrangement are also disclosed. | 09-19-2013 |
20130260694 | FADING SIMULATOR AND FADING SIMULATION METHOD - A fading simulator includes a transition time setting means that sets up a predetermined transition time, at the time of switching of a fading setting using a fading parameter, between the fading setting before switching and the fading setting after switching, and a smoothing processing means that smoothly changes a value before the switching to a value after the switching with respect to at least one of a delay parameter, a Doppler effect parameter and a path loss parameter, during the transition time. | 10-03-2013 |
20130288610 | Wireless Communications Circuitry with Temperature Compensation - A test system for calibrating wireless electronic devices is provided. The test system may include a test host, a radio communication tester, and a temperature chamber in which an electronic device under test (DUT) may be tested. The DUT may include a temperature sensor for monitoring an internal temperature of the DUT and may include power amplifier circuitry for outputting radio-frequency test signals. The tester may be used to measure output power levels of the radio-frequency test signals when the DUT is operating at a given reference temperature and when the DUT is operating at target operating temperature levels other than the given reference temperature. Power amplifier output level offset compensation values may be computed by comparing output power levels measured at each of the target operating temperatures to output power levels measured at the given reference temperature and may be stored in the DUT prior to normal operation. | 10-31-2013 |
20130295858 | SYSTEM AND METHOD FOR SYNCHRONIZED TRIGGERING OF TEST EQUIPMENT FOR TESTING MIMO TRANSCEIVERS - A system and method for testing multiple-input-multiple-output (MIMO) devices under test (DUTs) with multiple radio frequency (RF) signal testers. Each tester receives one or more RF signals from one or more of the DUTs, and the testers are mutually coupled in a ring such that successive ones receive a trigger input signal from an upstream tester and provide a trigger output signal to a downstream tester. Each tester is responsive to its input trigger signal and its one or more RF signals by providing its output trigger signal such that its output trigger signal has an asserted state initiated in response to an assertion of its input trigger signal and a transcending of a predetermined magnitude by at least one of the one or more RF signals. | 11-07-2013 |
20140024318 | MODIFYING LOG FILES AND PLAYBACK FILES USED FOR WIRELESS NETWORK EMULATION - Missing or unwanted parameter data indicative of wireless network conditions in a log file or playback file is replaced with substitute parameter data. The substitute parameter data can be calculated based on other data in the log file or playback file, selected from pre-defined data in storage, and provided by a user. The substitute parameter data may also be customized by the user via an interface. | 01-23-2014 |
20140038528 | EQUIPMENT TESTING METHOD AND APPARATUS - Systems, methods, and devices related to testing receive equipment. A test signal generator is coupled to both a receiver and an antenna. The receiver is also coupled to the antenna and a test signal verifier. A test signal is synthesized at the generator and is routed to the receiver. Once the verifier verifies that the test signal was received by the receiver, this ensures that the equipment coupled to the receiver, as well as the receiver itself, is in operating condition. Switches or other means of routing the test signal between the different components of the system can also be present. | 02-06-2014 |
20140080424 | DEVICE TO TEST MOBILE TERMINAL AND TESTING METHOD THEREOF - A mobile terminal testing device includes a reproduction unit that reproduces a BB signal to output at least one reproduced BB signal, an adder that adds a BB signal that are frequency-shifted and a reproduced BB signal to output an added BB signal, an up-converter that generates a multicarrier test signal by making a frequency conversion of the added BB signal of an I phase and Q phase and outputs the multicarrier test signal to UE, and an analyzer that analyzes a response signal output by the UE in response to the multicarrier test signal and the analyzer includes a throughput calculation unit that calculates throughput for the multicarrier test signal and an RSRP acquisition unit that acquires RSRP. | 03-20-2014 |
20140087668 | Methods and Apparatus for Performing Coexistence Testing for Multi-Antenna Electronic Devices - Radio frequency test systems for characterizing antenna performance in various radio coexistence scenarios are provided. In one suitable arrangement, a test system may be used to perform passive radio coexistence characterization. During passive radio coexistence characterization, at least one signal generator may be used to feed aggressor signals directly to antennas within an electronic device under test (DUT). The aggressor signals may generate undesired interference signals in a victim frequency band, which can then be received and analyzed using a spectrum analyzer. During active radio coexistence characterization, at least one radio communications emulator may be used to communicate with a DUT via a first test antenna. While the DUT is communicating with the at least one radio communications emulator, test signals may also be conveyed between DUT | 03-27-2014 |
20140141728 | METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR DETECTING ANTENNA PORT MISCONFIGURATIONS - Methods, systems, and computer readable media for detecting antenna port misconfigurations are disclosed. According to one method, the method includes storing one or more reference signal maps for identifying reference signals in downlink data in memory. The method further includes receiving downlink data that appears to be associated with a first antenna port of a device under test (DUT). The method also includes identifying, using the one or more reference signal maps, a first reference signal in the downlink data, wherein the first reference signal appears to be associated with the first antenna port. The method further includes determining, using a first computed error vector magnitude associated with the first reference signal, whether the first antenna port is misconfigured. | 05-22-2014 |
20140154997 | RF TESTING SYSTEM - An integrated circuit (IC) is provided. The IC includes an RF transmitter configured to generate an RF signal in response to a command signal from test equipment; an RF receiver configured to generate an evaluation signal according to the RF signal, and report the evaluation signal to the test equipment, so that the test equipment performs a test analysis on the evaluation signal to determine a test result, wherein the test equipment is external to the IC. | 06-05-2014 |
20140162568 | ON-CHIP CALIBRATION AND BUILT-IN-SELF-TEST FOR SOC MILLIMETER-WAVE INTEGRATED DIGITAL RADIO AND MODEM - A method for calibrating a wireless data transceiver package can include transmitting, by a testing device, a first control sequence to a wireless data transceiver. The transceiver can include a receiver and a transmitter. The first control sequence can include instructions for setting input parameters of the transmitter. The method can further include transmitting, by the testing device, a second control sequence to the transceiver that can include instructions for setting input parameters of the receiver. The method can further include receiving, from the transceiver, a third control sequence that can include output parameters of the transceiver. The method can further include determining a coupling between the receiver and the transmitter based on the output parameters. The method can further include determining a bit error rate of the transceiver based on the coupling. The method can further include calibrating a second transceiver based on the bit error rate. | 06-12-2014 |
20140179239 | Methods and Apparatus for Performing Passive Antenna Testing with Active Antenna Tuning Device Control - A wireless electronic device may contain at least one adjustable antenna tuning element for use in tuning the operating frequency range of the device. The antenna tuning element may include radio-frequency switches, continuously/semi-continuously adjustable components such as tunable resistors, inductors, and capacitors, and other load circuits that provide desired impedance characteristics. A test system that is used for performing passive radio-frequency (RF) testing on antenna tuning elements in partially assembled devices is provided. The test system may include an RF tester and a test host. The tester may be used to gather scattering parameter measurements from the antenna tuning element. The test host may be used to ensure that power and appropriate control signals are being supplied to the antenna tuning element so that the antenna tuning element is placed in desired tuning states during testing. | 06-26-2014 |
20140194069 | Methods for Testing Receiver Sensitivity of Wireless Electronic Devices - A test system may include test equipment for testing the radio-frequency performance of wireless electronic devices. The test equipment may provide radio-frequency downlink signals to a wireless electronic device under test (DUT). The test equipment may perform a power sweep by stepping down the downlink signals in signal power level to test receiver sensitivity for the DUT. The DUT may gather measurement data from the downlink signals. The test equipment may retrieve measurement data from the DUT after downlink signal transmission has ended. The test equipment may identify a trigger in the retrieved measurement data to ensure that the data is synchronized with the power sweep in the transmitted downlink signals. The test equipment may identify path loss information associated with the test system. The test equipment may compute receiver sensitivity values for the DUT based on the path loss information and retrieved measurement data. | 07-10-2014 |
20140199946 | EMERGENCY RESPONSE SYSTEMS AND METHODS - The present disclosure is an emergency response system that has a wearable device that receives an input from a user and transmits data indicative of the input. In addition, the system has a base station communicatively coupled to the wearable device that receives the data indicative of the input and transmits a test signal requesting a test be performed. Further, the system comprises logic that receives the test signal and initiates a call to the base station based upon the test signal. | 07-17-2014 |
20140235179 | PERFORMANCE EVALUATION OF SERVICES AND APPLICATIONS ON DEVICES IN LIVE WIRELESS ENVIRONMENTS - Services and applications running on devices placed in live wireless environments are tested and reported to determine the relative performance of the device under test. Multiple logs collected from the device under test are combined and transmitted to a remote backend system. The backend system stores and analyzes the combined logs to generate reports containing factual and relative performance information regarding the device during the testing period. The nature of the test, the collected log information, and the report format may all be modified according to the criteria of the requestor. | 08-21-2014 |
20140242918 | WIRELESS DEVICE WITH ANTENNA ARRAY AND SEPARATE ANTENNA - An apparatus (e.g., a wireless device) with an antenna array and a separate antenna is disclosed. The antenna array includes a plurality of antenna elements having a first antenna beam. The separate antenna includes an antenna element having a second antenna beam. The antenna element of the separate antenna is separate from the antenna elements of the antenna array. The antenna array and the separate antenna are active at different times in an operational mode. The antenna array may transmit and the separate antenna may be inactive in a transmit mode. The separate antenna may receive and the antenna array may be inactive in a receive mode. The antenna array may receive and the separate antenna may transmit in a test mode. Alternatively, the antenna array may transmit and the separate antenna may receive in the test mode. | 08-28-2014 |
20140242919 | TEST SIGNAL GENERATION APPARATUS AND METHOD BASED ON LTE-ADVANCED SYSTEM - To provide a technique for simplifying a parameter setting process required to generate a test signal based on an LTE-Advanced system. Carrier arrangement designation means | 08-28-2014 |
20140256269 | SYSTEM AND METHOD FOR CONFIRMING RADIO FREQUENCY (RF) SIGNAL CONNECTIVITY WITH DEVICE UNDER TEST (DUT) - A system and method for confirming radio frequency (RF) signal connectivity integrity with a device under test (DUT). An output RF signal is provided to a RF signal port and looped back for analysis along with an input RF signal, which includes a reflected signal component related to the output RF signal, from the RF signal port. By measuring magnitudes of combinations of the input and loopback RF signals, e.g., at multiple signal frequencies, it can be determined whether the RF signal port is properly terminated by the DUT. | 09-11-2014 |
20140273879 | METHOD AND APPARATUS FOR ABSORBED POWER CALIBRATION FOR UE - Methods, systems, apparatuses, and computer program products are described for operating a wireless communications device. Multiple signals may be received at the wireless communications device. The device may determine a power measurement for each of the signals and may receive absorbed power values corresponding to each power measurement. The wireless communications device may then be calibrated using one or more of the absorbed power values and corresponding power measurements. | 09-18-2014 |
20140295771 | OFF-LINE DEVICE TESTING USING VIDEO AND AUDIO CODE CONTROL - An apparatus for testing a device (DUT) includes a peripheral controller configured to communicate with an application embedded in the DUT. The application is configured to run self-diagnostic tests. An audio interface is arranged to transmit audio codes between the apparatus and the DUT on the basis of the tests, wherein the peripheral controller is coupled to the audio interface, being configured to encode and decode the audio codes. A method of testing a DUT includes running a DUT embedded application configured to run self-diagnostic tests. Running the application comprises transmitting encoded audio command signals via an audio interface from a testing apparatus to a microphone configured with the DUT to initiate self diagnostic tests, receiving audio response signals from the DUT generated on the basis of the tests via an audio interface configured with the testing apparatus, and decoding the received audio response signals by a peripheral controller. | 10-02-2014 |
20140302797 | Methods and Apparatus for Testing Electronic Devices Under Specified Radio-frequency Voltage and Current Stress - Test systems for characterizing devices under test (DUTs) are provided. A test system for testing a DUT in a shunt configuration may include a signal generator and a matching network that is coupled between the signal generator and the DUT and that is optimized to apply desired voltage/current stress to the DUT with reduced source power. The matching network may be configured to provide matching and desired stress levels at two or more frequency bands. In another suitable embodiment, a test system for testing a DUT in a series configuration may include a signal generator, an input matching network coupled between the DUT and a first terminal of the DUT, and an output matching network coupled between the DUT and a second terminal of the DUT. The input and output matching network may be optimized to apply desired voltage/current stress to the DUT with reduced source power. | 10-09-2014 |
20140302798 | Method and Apparatus for Virtual Desktop OTA - The present invention relates to testing a mobile device in a lab by providing test signals to the mobile device via a cabled connection which bypasses the actual physical antennas in the mobile device. The test signals emulate a wireless channel and incorporate representative and/or actual measured characteristics of the performance of the antennas in the mobile device. As such, the performance mobile device can be accurately measured without requiring placement in an anechoic chamber, which enables efficient testing over a large set of configurations and underlying conditions. | 10-09-2014 |
20140323059 | MOBILE COMMUNICATION TERMINAL TEST DEVICE AND MOBILE COMMUNICATION TERMINAL TEST METHOD - It is possible to easily check the state of cells when communication using a plurality of cells is tested. A mobile communication terminal test device | 10-30-2014 |
20140329471 | Network Suitability for a Streaming Device - A device is provided that analyzes one or more signal metrics to generate a signal measurement. The signal measurement is utilized to indicate whether or not a particular location of the device is suitable for receiving streamed content. A communication module of the device may receive one or more signals from an identified network device. At least one signal metric may be used to generate a signal measurement that may be indicated on an interface component. A recommendation to move the device to a different location may be generated based on the signal measurement. Subsequent to moving the device, a second signal measurement may be determined and indicated on the interface component. | 11-06-2014 |
20140329472 | Antenna Environment Sensing Device - Embodiments relate to a sensing device configured to sense the environment of an antenna in a wireless communications or wireless power transfer device without impacting data signal or transferred power integrity. By incorporating a sensing device in the wireless device that operates outside the data signal operating and operational power transfer frequency(s) of the antenna, send/receive data signal integrity may be retained while sensing the environment of the antenna. The sensing device may further use properties of the sensed environment to adjust the configuration of a tunable antenna to decrease signal degradation due to the environment and increase battery life or power transfer efficiency of the wireless device. | 11-06-2014 |
20140342675 | RF SIGNAL GENERATING DEVICE - Apparatus for generating an RF signal for use in RF signal detection is described. The apparatus comprises at least one processor configured to generate a set of IQ data based on at least one set of weighted IQ data, each set of weighted IQ data having a respective weight and a circuit configured to generate an RF signal using the set of IQ data. | 11-20-2014 |
20140349585 | SYSTEM AND METHOD FOR THE CALIBRATION AND VERIFICATION OF WIRELESS NETWORKS WITH CONTROL NETWORK - In a system and method computerized devices are connected to each other over a wireless network and to a controller over an additional network. The devices perform antenna beam angle testing of the wireless network. The controller receives, over the additional network, transmitted and received test signal data acquired during such testing. Based on the test signal data, the controller calculates calibration data, which indicates, for each pair of devices, different path loss amounts associated with different transmitted test signal beam angles and a single transmitted test signal power level. The controller generates calibration matrices corresponding to each pair of devices using the calibration data; analyzes the matrices to determine, for each pair, an optimal antenna beam angle that results in the least amount of path loss; determines an optimal power level for the pair based on the path loss; and communicates the optimal specifications to the pair. | 11-27-2014 |
20140349586 | Built-In Self-Testing Method of a Near Field Communication Device - The invention proposes a built-in self-testing method of a near field communication device including several functions, comprising testing a first internal communication link between a first function and a second function, by sending, on said first internal communication link, a first command from said first function used as a transmitter to said second function used as a receiver, and by checking said first command has been correctly executed by said second function. | 11-27-2014 |
20140370821 | Methods and Apparatus for Testing Electronic Devices with Antenna Arrays - A wireless electronic device may be provided with antenna structures. The antenna structures may be formed from an antenna ground and an array of antenna resonating elements formed along its periphery. The antenna resonating elements may be formed from metal traces on a dielectric support structure that surrounds the antenna ground. The electronic device may be tested using a test system for detecting the presence of manufacturing/assembly defects. The test system may include an RF tester and a test fixture. The device under test (DUT) may be attached to the test fixture during testing. Multiple test probes arranged along the periphery of the DUT may be used to transmit and receive RF test signals for gathering scattering parameter measurements on the device under test. The scattering parameter measurements may then be compared to predetermined threshold values to determine whether the DUT contains any defects. | 12-18-2014 |
20140378071 | CELLULAR PHONE MESSAGE DELIVERY TESTING SYSTEM AND METHOD - A process is disclosed for determining an operational status for a cellular service vendor. The process includes, in a computerized device, sending a test signal to a testing node associated with the cellular service vendor, the testing node configured to provide a status confirmation in reply to the test signal. The process further includes, in the computerized device, certifying the operational status of the cellular service vendor based upon the status confirmation and generating a computerized display output describing the operational status of the cellular service vendor. | 12-25-2014 |
20150017928 | OVER-THE-AIR TESTING OF WIRELESS DEVICES USING LOG FILES - An over-the-air test system for wireless devices uses log files to simulate realistic time-varying channel conditions and provides channel state information to enable dynamic adaptation to current channel conditions. A signal transmission device transmits test signals to the device under test via a channel emulator. The channel emulator causes the test signals to exhibit channel conditions which vary over time. An over-the-air test chamber in which the device under test is disposed includes multiple antennas which are driven with the test signals from the channel emulator. Channel state information is sent from the device under test to the signal transmission device. The signal transmission device responds to the channel state information by adapting to current channel conditions. | 01-15-2015 |
20150024693 | STRUCTURE, SYSTEM AND METHOD FOR DEVICE RADIO FREQUENCY (RF) RELIABILITY - Disclosed are test structures for radio frequency (RF) power stress and characterization. Each test structure incorporates a single device and is selectively operated in either a stress mode, during which the device is stressed under RF power, or in an analysis mode, during which the impact of the applied stress on the performance of the device is characterized. During the stress mode, an input RF power signal is applied to the device through an RF signal input port and an output RF power signal is captured from the device at an RF signal output port. Depending upon the impedance value of the device at issue, the RF signal input port and the RF signal output port are connected to either the same terminal or opposing terminals and the need for impedance tuning is avoided. Also disclosed are test systems and methods for selectively controlling operation of such a test structure. | 01-22-2015 |
20150024694 | Device and a Method for the Testing of Electronic Equipment with a Spatially Separate Control Unit - A device for testing electronic equipment comprising a measuring unit with a connection unit for the input and output of signals to a device under test, and a first processor, and a control unit, spatially separate from the measuring unit, that includes a second processor. The first processor and/or the second processor implement the control of the measurement procedure and the evaluation of the measured signals. The device control unit includes a remote-control unit for the remote control of the measuring unit. | 01-22-2015 |
20150031310 | METHODS, SYSTEMS AND COMPUTER READABLE MEDIA FOR SIMULATING PER USER EQUIPMENT (UE) DOPPLER SHIFTS FOR TESTING AIR INTERFACE DEVICES - The subject matter described herein includes methods, systems, and computer readable media for simulating per-UE Doppler shifts. One exemplary method includes generating uplink signals to be transmitted from a plurality of different simulated UEs to an air interface device under test. | 01-29-2015 |
20150044975 | Wireless Device Management With Local and Remote Links - A remote management system employs multiple wireless links, which may include a local wireless link and a remote wireless link. The remote wireless link may be in place between a troubleshooting device held by a person located at a service site, and a remote service center for a service provider, such as an Internet service provider. The local wireless link may be in place between the person at the service site and the equipment needing service, such as a DSL model provided by the service provider. Establishing the multiple links allows the service provider to troubleshoot the equipment, without incurring the substantial cost of sending a specialized service technician to the service site. As examples, the troubleshooting device may be a smart phone, the remote wireless link may be a cellular connection, and the local wireless link may be a Bluetooth or NFC connection. | 02-12-2015 |
20150050893 | Methodology and Apparatus for Testing Conductive Adhesive Within Antenna Assembly - Damage to conductive material that serves as bridging connections between conductive structures within an electronic device may result in deficiencies in radio-frequency (RF) and other wireless communications. A test system for testing device structures under test is provided. Device structures under test may include substrates and a conductive material between the substrates. The test system may include a test fixture for increasing tensile or compressive stress on the device structures under test to evaluate the resilience of the conductive material. The test system may also include a test unit for transmitting RF test signals and receiving test data from the device structures under test. The received test data may include scattered parameter measurements from the device structures under test that may be used to determine if the device structures under test meet desired RF performance criteria. | 02-19-2015 |
20150050894 | RADIO COMMUNICATION DEVICE AND SEMICONDUCTOR INTEGRATED CIRCUIT - A radio communication device includes a semiconductor integrated circuit including a transmission path and a reception path; a determination unit that determines whether firmware used for processing in the semiconductor integrated circuit is updated; an input unit that inputs predetermined test data to the transmission path when it is determined that the firmware is updated; a measurement unit that measures a time until the test data returns from the reception path; and a processor that compares the measured time with a reference time, and adjusts a delay time of a signal based on a result of the comparison, wherein the semiconductor integrated circuit includes a bypass that connects the transmission path and the reception path to turn back the test data to the reception path at a stage prior to conversion of a frequency of the test data to the radio frequency. | 02-19-2015 |
20150050895 | Method for the Self-Testing of a Reactive Radio Interferer - A reactive radio interferer includes a plurality of time synchronized transmitting/receiving lines, each of which is designed to alternately carry out-monitoring phases in order to receive the radio spectrum and interference phases in order to transmit an interference signal on the basis of the radio spectrum received in the monitoring phase. Testing of the reactive radio interferer is performed by having one of the transmitting/receiving lines transmit a test signal within a monitoring phase, the test signal being received and evaluated by at least one other transmitting/receiving line. | 02-19-2015 |
20150111506 | MEASURING DEVICE AND A METHOD FOR MEASURING A SIGNAL WITH SEVERAL COMPONENT SIGNALS - A measuring device for measuring a signal with a first component signal and at least one second component signal comprises a high-frequency processing device, which is embodied to mix the signal in order to form an intermediate-frequency signal and to digitize the latter in order to form a digital composite signal. The measuring device further comprises a digital mixer, which is embodied to generate a first digital composite test signal and a second digital composite test signal subject to a displacement of the frequency of the digital composite signal. Moreover, the measuring device comprises a digital filter, which is embodied to filter the first digital composite test signal in order to form a first digital test signal and to filter the second digital composite test signal in order to form a second digital test signal. | 04-23-2015 |
20150111507 | MILLIMETER WAVE CONDUCTIVE SETUP - Aspects of the disclosure provide techniques, apparatuses, and systems for testing communications between devices in a wireless system. According to certain aspects, these techniques may involve utilizing one or more variable attenuators to simulate conditions of one or more wireless channels between devices in the wireless system. According to certain aspects, these techniques may be used to facilitate testing of communications for millimeter wave (mm-wave) (RF) systems (operating within the 60 GHz frequency band). | 04-23-2015 |
20150118970 | RF LOOPBACK VIA ANTENNA COUPLING FOR CALIBRATION OF MULTIPLE TRANSCEIVER SYSTEMS - A method, device, and system for calibrating one or more transceiver components in a multi-transceiver system are provided. The method includes sending a calibration signal through a transmit path of a first transceiver of the multi-transceiver system, resulting in transmission of the calibration signal from an antenna of the first transceiver; receiving, by an antenna of a second transceiver of the multi-transceiver system, the transmitted calibration signal, and processing the received calibration signal through a receive path of the second transceiver; and calibrating one or more components of the multi-transceiver system using the received and processed calibration signal. | 04-30-2015 |
20150118971 | Linearization of Radio Frequency Transceivers and Test Systems Through Dynamic Extraction of Complex Nonlinear Models Thereof - Dynamic characterization of complex high-order nonlinearity in transmitter (TX) and receiver (RX) signal chains of transceiver systems can be efficiently and accurately performed. A loopback connection may be used to facilitate self-characterization. Appropriate RX and TX configuration settings may be developed to facilitate de-coupling of individual RX and TX nonlinearities from measured cascade nonlinearity. The system's high-order response to a two-tone signal generation may be measured, and complex mathematical analysis may be performed to identify and isolate passband nonlinear components to extract a high-order memory-less model for the system. The extracted system model may be used in the corrective and non-iterative pre-distortion of generated signals and in the post-distortion of received signals to improve linearity performance of the transceiver. The memory-less model and the analytical system are effective in improving performance of class-A-amplifier-based signal chains that are common in test and measurement systems and channel emulation systems. | 04-30-2015 |
20150126132 | METHODS AND APPARATUS FOR RADIO CO-EXISTENCE TESTING AND VERIFICATION OF WIRELESS SYSTEMS - Apparatus and methods for radio co-existence and/or component testing in wireless-enabled electronic devices. In one embodiment, a wireless-enabled electronic device (ED) is coupled to a user interface. Test personnel or other supervisory entities can execute test scripts from the user interface. Unlike prior art testing configurations, the disclosed embodiments are configured to perform testing without requiring additional equipment, configuration changes, etc. to the device being evaluated. In one exemplary case, the test scripts are configured to test various co-existence scenarios. The resulting data can be used to quickly identify problem devices via highly accurate results, as well as provide useful statistical data. | 05-07-2015 |
20150295663 | VOICE COMMUNICATION SYSTEM FOR SIMULATED RADIO NETWORKS - A method of radio simulation is provided. The method includes a first computer executing a communication manager, the communication manager configured to provide a radio simulation environment comprising a virtual radio network. The method also includes the first computer executing a communication management controller, wherein the communication management controller receives radio control input for the virtual radio network. The method also includes the first computer executing a tactical and environment cue controller, the tactical and environment cue controller configured to provide simulated audible sounds for the radio simulation environment. The method also includes the first computer executing a configuration controller, the configuration controller coupled to the communication manager and configured to receive at least one radio simulator configuration that designates at least a number of radios and frequencies. | 10-15-2015 |
20150381294 | MEASUREMENT DEVICE AND MEASURING METHOD USING SIMULATED UPLINK FADING - A measuring device for measuring a reaction of a device under test to an uplink channel quality parameter, indicating a quality of a transmission channel from the device under test to the measuring device, comprises signal generation means, set up for generating a first signal including the uplink channel quality parameter. The uplink channel quality parameter is set by the signal generation means independent from an actual channel quality of the transmission channel. Transmission means is set up for transmitting a second signal, which is derived from the first signal or is identical to the first signal to the device under test. Receiving means is set up for receiving a third signal transmitted by the device under test and created by the device under test based upon the uplink channel quality parameter and for determining the reaction of the device under test to the uplink channel quality parameter. | 12-31-2015 |
20160036539 | DETECTION OF FAULTY RADIO OSCILLATOR OR FAULTY MOBILE TIMING MEASUREMENTS - Detection of a faulty radio oscillator is provided herein. Also provided herein is detection of faulty mobile timing measurements. Timing measurements, as observed by a mobile device, and an identification of primary scrambling codes associated with the timing measurements are captured. The primary scrambling codes match each timing measurement with a particular radio. The mobile device can also report its location information. Radios for which timing measurements have been received are paired. Based on the paired radios and an associated observed time delay derived from the timing measurements, comparisons can be made between paired radios having at least one common radio. Radios exhibiting an expected timing value can be removed from the analysis in order to isolate a radio that has a faulty radio oscillator. | 02-04-2016 |
20160050033 | ADAPTIVE RF SYSTEM TESTING SYSTEM AND METHOD - A system and method for testing an adaptive RF system in an emulated RF environment using a feedback control module to efficiently and accurately evaluate the performance of the RF system under test in the search space. | 02-18-2016 |
20160050034 | RF SIGNAL ALIGNMENT CALIBRATION - A method is provided for aligning RF signals of a first channel bank and additional channel banks in a test platform. A plurality of correlators is used to correlate a reference code signal carrying a particular code at a particular chip rate with a received code signal carrying the particular code at the particular chip rate from the first channel bank to establish a first timing offset. The plurality of correlators is used to correlate a continuation of the reference code signal with additional received code signals carrying the particular code at the particular chip rate from the additional channel banks to establish additional timing offsets. The first timing offset and additional timing offsets are applied to the first and additional channel banks. The plurality of correlators includes 72 correlators, and a timing offset established in a correlation interval having a shorter duration than a length of the particular code. | 02-18-2016 |
20160087734 | RF RECEIVER WITH TESTING CAPABILITY - An RF receiver device includes a semiconductor chip in a chip package, and a test signal generator integrated in the chip. The test signal generator generates an RF test signal including first information. An RF receiver circuit integrated in the chip receives an RF input signal, down-converts the RF input signal into an intermediate frequency (IF) or base band, and digitizes the down-converted signal to obtain a digital signal. An RF receive channel includes a coupler having first and second input ports and an output port. The output port is coupled to the input of the RF receiver circuit, the first input port receives an antenna signal and the second input port receives the test signal from the test signal generator. A signal processor is integrated in the chip and determines, during a test cycle, whether the first information in the digital signal matches a predetermined criterion. | 03-24-2016 |
20160100321 | APPARATUS AND METHOD FOR USE MANAGEMENT - A use management apparatus includes a calculation unit that calculates an input level to an amplifier that amplifies a first signal transmitted from a transmitter station of a primary system, the input level being calculated by adding second field intensity of a second signal to first field intensity of the first signal, the second signal being transmitted from a transmitter station of a secondary system with use of a white space of the primary system, and a use propriety determination unit that authorizes the secondary system to use the white space when the input level is less than a saturation input level of the amplifier. | 04-07-2016 |
20160112148 | LOW-COST TEST/CALIBRATION SYSTEM AND CALIBRATED DEVICE FOR LOW-COST TEST/CALIBRATION SYSTEM - A test/calibration system includes a device under test (DUT) and a calibrated device. The calibrated device is coupled to the DUT, transmits or receives a test signal to or from the DUT in response to a control signal for a test item to test, measure or calibrate functioning or performance of an internal component of the DUT. | 04-21-2016 |
20160127052 | Method and Device for the Adjustment of Contactless Data Links - A test setup for testing a contactless digital rotary joint integrated in a device requiring data transmission between a rotating part and a stationary part, the rotary joint further comprises a transmitter and a receiver. The transmitter has a transmitter amplifier, which is coupled to a pair of transmission lines, which are terminated by a pair of terminations. The transmission lines are differential transmission lines comprising a pair of conductors which is driven by differential signals from the transmitter amplifier. The receiver has a receiver antenna comprising a pair of antenna sections which are differentially operated and feed a differential signal to the receiver amplifier. A transmitter ground and a receiver ground are coupled to a common mode signal generator generating a common mode signal. A data source is coupled to the transmitter amplifier feeding a test signal into the transmitter amplifier, and a data sink is coupled to the receiver amplifier for receiving the test signal and generating a test result value. Also disclosed is a method for adjusting a contactless data link integrated in a device requiring data transmission between a rotating part and a stationary part. | 05-05-2016 |
20160134383 | MULTIPLE TRANSCEIVER AND ANTENNA VERIFICATION SYSTEM - A system includes a control unit and multiple transceivers connected by a communication bus. The transceivers are respectively connected to antennas. The control unit tests the operation of the transceivers by transmitting a test signal from a first transceiver to a second transceiver, receiving a return signal based on the test signal from the second transceiver, and determining if the strength of the return signal is within a predetermined range. | 05-12-2016 |
20160197684 | RF TESTING SYSTEM WITH SERDES DEVICE | 07-07-2016 |
20160204881 | RF TESTING SYSTEM USING INTEGRATED CIRCUIT | 07-14-2016 |
20160204882 | RF DEVICE AND POWER CONTROL PERFORMED THEREIN | 07-14-2016 |
20160204884 | DATA INTEGRITY VIA GALVANICALLY ISOLATED ANALOG-TO-DIGITAL CONVERTER FOR INDUSTRIAL SYSTEMS | 07-14-2016 |
20160254870 | ACTIVE ANTENNA SYSTEM AND METHODS OF TESTING | 09-01-2016 |
20160254871 | MEASURING DEVICE AND MEASURING METHOD FOR DYNAMICALLY MEASURING CARRIER AGGREGATION SIGNALS | 09-01-2016 |