Patents
Patents for H04B 17 - Monitoring; Testing (29,423)
06/2001
06/26/2001US6252542 Phased array antenna calibration system and method using array clusters
06/21/2001WO2001045276A2 Method and apparatus for detecting base station transceivers' malfunctions
06/21/2001US20010004586 Apparatus and method for compensating received signal strength indicator according to temperature
06/21/2001CA2327761A1 Wireless systems combining arrangement and method thereof
06/20/2001EP1108297A1 Method and device for measuring the transmission quality of a transmission channel
06/20/2001EP1108221A1 Method and arrangement for checking cable connections
06/20/2001EP0755615B1 Method for adapting a transmission mode in a mobile radiocommunication system
06/20/2001CN1300485A Testing device and method
06/19/2001US6249678 Communication unit and method for performing neighbor site measurements in a communication system
06/14/2001WO2001043333A1 Mobile equipment based filtering for packet radio service applications
06/14/2001WO2001029610A3 Device for controlling an optical signal modulation frequency, and in particular for controlling microwave or millimetric modulation frequency
06/14/2001US20010003536 Reception power level calculating circuit and receiver using the same
06/13/2001EP1107628A2 Deferral of transmissions in wireless local area network
06/13/2001EP1107526A1 Channel estimation using weighted averages over several time slots
06/13/2001EP1107490A1 Method and system for monitoring a radio transmission link
06/13/2001EP1105978A1 Method for simultaneously measuring the propagating characteristics of a plurality of radioelectric channels
06/13/2001CN1299571A Method for measuring signal timing, and radio system
06/12/2001US6246867 Method and apparatus for saving current while performing signal strength measurements in a homodyne receiver
06/07/2001WO2001041485A1 Method for conformance testing of radio communication equipment
06/07/2001WO2001041335A1 Relative velocity estimation using tpc-commands
06/07/2001WO2001041128A1 Differentiation of error conditions in digital voice communication systems
06/07/2001WO2001028133A3 Method and device for continuously monitoring an optical transmission path
06/06/2001EP1104961A1 Deferral of transmissions in wireless local area network
06/06/2001EP1104643A2 Changing a faulty radio channel
06/06/2001EP1104615A1 Determination of the operability of a radio channel
06/06/2001EP1104602A1 Optical subscriber access network
06/06/2001CN2433781Y RS-232 interface conversion and extension device
06/06/2001CN1298233A On-line signal offset monitoring method
06/05/2001US6243576 Radio communication analyzer suited for measurement of plurality of types of digital communication systems
06/05/2001US6243568 System and method for intuitively indicating signal quality in a wireless digital communications network
06/05/2001US6243371 Method and apparatus for interference avoidance in a wireless communication system
05/2001
05/31/2001WO2001039409A1 A task oriented graphical user interface for a communication test set
05/31/2001WO2001039408A1 Transmission gap interference measurement
05/31/2001CA2392913A1 A task oriented graphical user interface for a communication test set
05/30/2001EP1104122A1 Radio device and method of calibration thereof
05/30/2001CN1297660A CDMA base station device and CDMA communication method
05/30/2001CN1297632A Method and system for estimating ability of subscriber loop to support broadband services
05/29/2001US6240282 Apparatus for performing non-linear signal classification in a communications system
05/29/2001US6240275 System and method for channel assignment based upon interference and channel quality measurements
05/25/2001WO2001037464A1 Modulation analyzer
05/25/2001WO2001037463A1 A method for transmitting measurement data in a wireless communication system and a wireless communication system
05/25/2001WO2001037447A1 Method for selecting timeslot power control mode based on mobile station characteristics
05/24/2001US20010001760 Data transmission system, data transmitter and data receiver used in the data transmission system
05/23/2001EP1102426A2 Wireless modem alignment in a multicell environment
05/23/2001CN1296363A Calibration for radio moden in multicell environment
05/22/2001US6236872 Signal processing apparatus
05/22/2001US6236865 Operating a cellular telecommunication system
05/22/2001US6236840 Transmission output detecting circuit
05/22/2001US6236690 Direct-conversion receiver for digital-modulation signal
05/22/2001US6236371 System and method for testing antenna frequency response
05/17/2001WO2001035546A1 Method for monitoring transmission quality
05/17/2001CA2660092A1 Method and communication system for managing a communication network
05/16/2001EP1100227A1 Telecommunication system, terminal, network, monitor and method
05/16/2001EP1100205A2 Error code wire fault detection
05/16/2001CN1295417A Method and apparatus for wireless network performance based on derivative optimization
05/16/2001CN1295416A Evaluation and interpolation for wireless network parameter based on path
05/16/2001CN1295415A Method and apparatus for measuring telecommunication path
05/16/2001CN1295389A Central monitor system of mobile telecommunication base station
05/16/2001CN1066003C Radio system and subscriber terminal for radio system
05/15/2001US6233708 Method and device for frame error detection
05/15/2001US6233437 Method and apparatus for testing mobile communication device employing frequency hopping
05/15/2001US6233433 Apparatus and method of testing multi-beam satellite repeater in-orbit from a single ground station using a sampling and combining matrix
05/15/2001US6233274 Non-invasive digital cable test system
05/15/2001US6233247 Method and system for avoiding communication failure in CDMA systems
05/15/2001US6233072 Method and system for restoring coincident line and facility failures
05/15/2001US6232909 Communication network optimization tool
05/15/2001US6232816 Signal level monitoring circuit
05/15/2001CA2325124A1 Wireless modem alignment in a multi-cell environment
05/10/2001WO2001033769A2 A method and apparatus for the detection and classification of collisions on a shared access rf network
05/10/2001WO2001033734A1 A system and method for monitoring a wiretap
05/10/2001WO2001018979A3 Method for reducing reception interferences, especially multiway reception interferences, for receiving a radio signal and circuit for carrying out this method
05/10/2001US20010000959 System and method of radio transmission between a radio transmitter and radio receiver
05/10/2001DE19952949A1 Power and/or interference estimating method in TD/CDMA based radio communication system
05/09/2001EP1098546A2 Methods and apparatus for derivative based optimization of wireless network performance
05/09/2001EP1098544A2 Road-based evaluation and interpolation of wireless network parameters
05/09/2001EP1097521A1 Network amplifier monitoring circuit
05/09/2001CN1294826A Method for determining confidence limit
05/09/2001CN1294791A Method and system for providing estimate of signal strength of received signal
05/08/2001US6229997 Interference detecting receiver
05/08/2001US6229843 Pilot adaptive vector correlator
05/08/2001US6229490 Antenna coupler for testing mobile telephones
05/08/2001CA2207965C Radio loop-back test method having improved reliability and a system using the test method
05/04/2001CA2324386A1 Road-based evaluation and interpolation of wireless network parameters
05/04/2001CA2324189A1 Methods and apparatus for derivative-based optimization of wireless network performance
05/03/2001WO2001031958A1 Timing method and arrangement for performing preparatory measurements for interfrequency handover
05/03/2001WO2001031866A2 Baseband processor with look-ahead parameter estimation capabilities
05/03/2001WO2001031814A1 Failure detection system and failure detection method
05/03/2001WO2001031353A1 Field test chamber arrangement
05/03/2001US20010000705 Methods and apparatus for verifying transmit power levels in a signal point limited transmission system
05/03/2001CA2388928A1 Failure detection system and failure detection method
05/02/2001EP1096748A1 Digital modulation signal measuring device and method capable of evaluating spectrum of noise component
05/02/2001EP1095476A1 Interference prevention in a radio communications system
05/02/2001EP1095472A1 Method and device for executing control and monitoring measurements in optical transmission paths
05/02/2001CN1293879A Method for estimating carrier-to-interference radio in radio communication system and communication device implement the method
05/01/2001US6226496 Antenna malfunction detecting system
05/01/2001US6226271 Received signal strength determination method, apparatus and computer program products
05/01/2001CA2182710C Method and apparatus for automatic modulation calibration in a radio transmitter
04/2001
04/26/2001WO2001029610A2 Device for controlling an optical signal modulation frequency, and in particular for controlling microwave or millimetric modulation frequency
04/26/2001CA2387849A1 Device for controlling an optical signal modulation frequency, and in particular for controlling microwave or millimetric modulation frequency
04/25/2001EP1094321A2 A test and measurement instrument having telecommunications mask testing capability with a mask zoom feature