Patents for H04B 17 - Monitoring; Testing (29,423) |
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04/17/2002 | CN1345520A Method and system for testing functioning of data communication in radio apparatus |
04/17/2002 | CN1344938A Signal/interference ratio measuring method |
04/17/2002 | CN1344936A Measuring system and method for industrial frequency current in opened magnetic path |
04/17/2002 | CN1083230C Radio characteristic evaluating apparatus of mobile telecommunication device |
04/16/2002 | US6374311 Communication network having a plurality of bridging nodes which transmit a beacon to terminal nodes in power saving state that it has messages awaiting delivery |
04/16/2002 | US6374196 Method of fault diagnosis based on propagation model |
04/16/2002 | US6374096 System and method for detecting interference present in mobile satellite communication links based on noise floor power levels of satellite communication links |
04/16/2002 | US6374084 Method and system for calibrating electronic devices using polynomial fit calibration scheme |
04/16/2002 | US6373878 Using a fast AGC as part of SIR calculation |
04/16/2002 | US6373262 Method and apparatus for testing a signal line |
04/16/2002 | CA2293128C Radio wave environment analyzer |
04/16/2002 | CA2253487C Transceiver with rf loopback and downlink frequency scanning |
04/11/2002 | WO2002030136A2 System and method for quantifying accuracy of interference analysis in a wireless telecommunications network |
04/11/2002 | WO2002011295A3 Method and measuring device for measuring the spectra in adjacent channels |
04/11/2002 | US20020042894 Testing of a radio transceiver |
04/11/2002 | US20020042290 Method and apparatus employing a remote wireless repeater for calibrating a wireless base station having an adaptive antenna array |
04/11/2002 | US20020042269 Systems and methods for determining signal coverage |
04/11/2002 | US20020042268 Systems and methods for determining signal coverage |
04/11/2002 | US20020041656 Method of measuring and improving XDSL transmission characteristic |
04/11/2002 | US20020041584 Asynchronous interference avoidance technique in TDMA communications system |
04/10/2002 | EP1195939A1 Redundant optical multiple-branch communication system |
04/10/2002 | EP1005725B1 Method and apparatus for automatic channel measurements |
04/10/2002 | CN1344448A Transmission gap interference measurement |
04/10/2002 | CN1344446A Method for obtaining information regarding interference in receiver of message transmission system |
04/10/2002 | CN1344089A Sewage management system |
04/09/2002 | US6370572 Performance management and control system for a distributed communications network |
04/09/2002 | US6369922 Wavelength division multiplex optical transmission apparatus |
04/04/2002 | WO2002027984A2 Passive traffic channel and messaging testing for cdma systems |
04/04/2002 | WO2002027983A2 Distance to fault measurement using multi-path cdma signals |
04/04/2002 | WO2002027978A1 A transmitter-receiver device and a communication system |
04/04/2002 | US20020039898 Method for detecting a shield in predicting radio wave propagation characteristics and system for use with the same method |
04/03/2002 | EP1193907A2 Network test instrument |
04/03/2002 | EP1193902A2 Signal break detecting circuit |
04/03/2002 | EP1193897A2 Wireless transmission evaluation system and method |
04/03/2002 | EP1193896A2 Method and apparatus for measuring output power of devices for mobile communications |
04/03/2002 | EP1192742A1 Translator for time division multiple access wireless system having selective diversity circuits |
04/03/2002 | EP1192741A1 Method and apparatus for supervising a potentially gated signal in a wireless communication system |
04/03/2002 | CN2484713Y Short-message service field monitoring unit |
04/03/2002 | CN1343408A Signal format in multi-carrier CDMA transmission system |
04/03/2002 | CN1082287C System and method for simulating user interference in spread spectrum communications system |
03/28/2002 | WO2002025846A2 Calibration of a transmit branch and/or a receive branch of a quadrature transmitter and/or transceiver |
03/28/2002 | WO2002025837A2 Method and apparatus for determining an operating condition in a communications system using antenna arrays |
03/28/2002 | WO2001086826A3 Method of dynamic transmit scheduling using channel quality feedback |
03/28/2002 | US20020037705 Method and apparatus for calibration of a wireless transmitter |
03/28/2002 | US20020036810 Signal break detecting circuit |
03/28/2002 | US20020036767 Method for monitoring an optical waveguide, as well as monitoring system and monitoring unit for said method |
03/27/2002 | EP1191804A2 Path loss data normalization for growth management of a cellular system |
03/27/2002 | EP1191719A2 Method and apparatus for signal quality estimation in a communication system |
03/27/2002 | EP1191714A1 Method for monitoring an optical waveguide, monitoring system and monitoring unit for said method |
03/27/2002 | EP1190519A1 Reducing interference probability in reception-side channel estimation in a radio telecommunication system |
03/27/2002 | EP1190511A1 Method for estimating signal-to-noise ratio of digital carriers in an am compatible digital audio broadcasting system |
03/27/2002 | CN1342374A Method and system for creating RF signature for signature region in wireless communication system |
03/27/2002 | CN1342373A Method and system for comparing measured radio frequency signal propagation characteristics in wireless communication system |
03/26/2002 | US6363245 Portable communication terminal which judges the reception situation by lowest error rate |
03/26/2002 | US6363111 Control loop for adaptive multilevel detection of a data signal |
03/26/2002 | US6363050 Switching control in cold standby type of duplex transmission system |
03/21/2002 | WO2002001738A8 Method for improving the quality of data transmission |
03/21/2002 | WO2001052568A3 Method and apparatus for testing wireless communication channels |
03/21/2002 | US20020034951 Method for load control, and radio system |
03/20/2002 | EP1189370A1 Pilot symbols transmission power |
03/20/2002 | EP1189369A1 A method of modeling a CDMA cellular telephone system |
03/20/2002 | EP1188264A1 System and method for supervising repeater by using wireless mobile |
03/20/2002 | EP1016296B1 Communications system and method for testing of a communications apparatus |
03/20/2002 | CN1341302A High dynamic range low ripple RSSI for zero-IF or low-IF receivers |
03/20/2002 | CN1081415C Automatic test and warning system and test method for optical fibre and cable trunk and network |
03/19/2002 | US6360085 System and method for receiving a signal |
03/19/2002 | US6360077 Mobile radio communication device provided with functions for detecting and informing interference |
03/19/2002 | US6359932 Verification of transmit power levels in a signal point limited transmission system |
03/14/2002 | WO2002021714A1 Method and arrangement in a communication system |
03/14/2002 | WO2002021704A2 Power margin control |
03/14/2002 | WO2002021228A1 Self-diagnosis circuit of input/output circuit system |
03/14/2002 | WO2001084181A3 Passive coherent location system and method |
03/14/2002 | US20020032008 Method for measuring operation of cellular radio system, and cellular radio system |
03/14/2002 | US20020031101 System and methods for interconnecting remote devices in an automated monitoring system |
03/14/2002 | US20020030865 Optical distribution network system that performs system switching only when total operation condition is improved |
03/13/2002 | EP1187376A2 Amplitude and phase normalization in a broadband receiver using a broadband temperature compensated noise source and a pseudo random sequence generator |
03/13/2002 | EP1187354A1 Radio device and method of calibration of antenna directivity |
03/13/2002 | EP1187317A2 Transmitter and wireless communication device |
03/13/2002 | EP1186194A1 System for detecting cellular telephones in reception or operational standby mode |
03/13/2002 | EP1186126A1 Method and apparatus for determining characteristics of components of a communication channel |
03/13/2002 | EP1186125A1 Method for measuring confusion rate of a common packet channel in a cdma communication system |
03/13/2002 | EP1186124A2 Apparatus for testing mobile phones |
03/13/2002 | EP1186112A1 Method and apparatus for stability margin determination in a repeater |
03/13/2002 | EP1186098A2 Measuring antenna signal strength with automatic gain control receiver |
03/13/2002 | EP1032991B1 Received signal strength determination methods and systems |
03/13/2002 | EP0997014A4 Mobile station locating system and method |
03/13/2002 | CN1080977C Method for measuring noise level of base station environment and cellular communication system |
03/13/2002 | CN1080959C Method and apparatus for power estimation in a communication system |
03/12/2002 | US6356767 Method and apparatus for controlling mobile access to a wireless communication system |
03/12/2002 | US6356739 Measurement method |
03/12/2002 | US6356207 DSRC car-mounted equipment |
03/07/2002 | WO2001076110A3 Method and apparatus for measuring channel state information |
03/07/2002 | US20020028675 Method and apparatus for backhaul link diagnostic in a wireless repeater system |
03/07/2002 | US20020027951 Real-time system for measuring the ricean K-factor |
03/07/2002 | US20020027493 Remote signal transmission control including compensation for variations in transmitter components |
03/06/2002 | EP1185129A2 Optical distribution network system that performs system switching only when total operation condition is improved |
03/06/2002 | EP1185033A1 Multicasting method, multicasting system, mobile station and base station |
03/06/2002 | EP1185009A2 Leak power ratio detection circuit, mobile communication terminal, and control circuit for mobile communication terminal |
03/06/2002 | EP1184669A2 Waveform measuring method and apparatus |
03/06/2002 | EP1183889A1 Method for measuring operation of cellular radio system, and cellular radio system |