Patents for H04B 17 - Monitoring; Testing (29,423) |
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10/28/1999 | WO1999054960A2 Phased array antenna calibration system and method using array clusters |
10/27/1999 | EP0951791A1 Method and arrangement for the controlled generation of a traffic load in mobile radio systems |
10/27/1999 | EP0655179B1 Method for testing a transceiver, and a base station of a time-divisional radiocommunication system |
10/27/1999 | CN1233379A Method for determining speed of terminal, and receiver |
10/27/1999 | CN1046069C Portable field strength detector capable of correcting frequency deviation contained in field strength detected value |
10/26/1999 | US5974087 Waveform quality measuring method and apparatus |
10/26/1999 | US5974083 Spread spectrum signal reception apparatus |
10/26/1999 | US5974057 Method and apparatus for correcting a measured round-trip delay time in a wireless communication system |
10/26/1999 | US5973601 Method of radio transmission between a radio transmitter and radio receiver |
10/21/1999 | WO1999053637A1 Method and system for estimating the ability of a subscriber loop to support broadband services |
10/20/1999 | EP0950332A2 Channel strength measurement shifting scheme |
10/20/1999 | CN1232584A Method and apparatus for forming calibration signal |
10/19/1999 | US5970396 Diversity receiver |
10/19/1999 | US5970394 Method of detecting damaged cellular telephone facilities |
10/19/1999 | US5968122 Method for propagating between views of connection object status in network |
10/14/1999 | WO1999052313A1 A method for measuring the field strength map of an hf-broadcast transmitter |
10/13/1999 | EP0949831A1 A method for measuring the field strength map of a HF-Broadcast transmitter |
10/13/1999 | CN1231571A Method and equipment for determining forward and backward periodic line property in radio communication system |
10/12/1999 | US5966405 Frequency deviation measuring device |
10/12/1999 | US5966370 Method and signal evaluation means for determining the noise part in the signal mix of the reception signal of a CDMA reception means |
10/07/1999 | WO1999037102A3 Method and communication system for processing alarms using a management network involving several layers of management |
10/06/1999 | EP0947066A1 A method and an apparatus for determining the pathloss between a base transceiver station and a mobile station in a mobile radio network |
10/06/1999 | CN1231086A Method for estimating angular spread of signal transmitted from transmitter to receiver and corresponding receiver |
10/06/1999 | CN1231085A Method and apparatus for measuring link quality in spread spectrum communication system |
10/05/1999 | US5963855 Method for extending the RSSI range and radio transceiver operating in accordance with this method |
10/05/1999 | CA2188204C Communication control unit |
09/30/1999 | WO1999049689A2 Method and device for estimating the carrier-to-interference ratio in a radio communication system |
09/30/1999 | WO1999049588A1 Method and system for providing an estimate of the signal strength of a received signal |
09/30/1999 | WO1999049587A1 Timing control of transmission time slot |
09/30/1999 | WO1999049581A2 Am quality detector |
09/30/1999 | DE19813564A1 Verfahren und Vorrichtung zur Messung der Übertragungsqualität in Zellen von Mobilfunknetzen Method and apparatus for measuring the transmission quality in cells of mobile radio networks |
09/30/1999 | DE19812923A1 Transmission and reception behaviour determination method for hand-held radio apparatus |
09/29/1999 | EP0946008A2 Apparatus and method for communication control |
09/29/1999 | EP0946007A2 Method and apparatus for measuring the transmission quality in cells of mobile radio networks |
09/29/1999 | EP0945995A2 RAKE receiver with adaptive delay profile measurement |
09/29/1999 | EP0945036A2 Communications system and method for testing of a communications apparatus |
09/29/1999 | EP0944987A2 Voice path testing in telecommunications systems |
09/29/1999 | EP0944986A2 An operational test device and method of performing an operational test for a system under test |
09/29/1999 | EP0944968A2 Method and apparatus for estimating field strength |
09/28/1999 | US5960353 Microcell load measurement using feedback control |
09/28/1999 | US5960335 Digital radio communication apparatus with a RSSI information measuring function |
09/28/1999 | US5960047 System and method for transmitting information signals |
09/28/1999 | US5959583 Antenna adapter |
09/28/1999 | US5959293 Defective portion detecting device with a horizontal synchronized signal |
09/27/1999 | CA2233490A1 Pilot tone detector |
09/23/1999 | DE19811895A1 Verfahren zum Bestimmen verschiedenartiger Fehler eines digitalen Sendermodulators A method for determining different types of errors a digital transmitter modulator |
09/22/1999 | EP0944201A2 System and method for measuring channel quality in a communication system |
09/22/1999 | EP0943928A2 Method of determination of several types of fault of a transmitter modulator |
09/22/1999 | EP0904668A4 Adaptive capacity and quality improvements in cellular radio services by the removal of strong interference sources |
09/21/1999 | US5956638 Method for unlicensed band port to autonomously determine interference threshold and power level |
09/21/1999 | US5956619 Satellite controlled power control for personal communication user terminals |
09/21/1999 | US5955917 Nonlinear amplifier calibration system and methods |
09/16/1999 | WO1999046872A1 Testing device and method |
09/16/1999 | WO1999046869A1 Correction of signal-interference ratio measurements |
09/16/1999 | DE19810813A1 Data transmission method for radio communication system |
09/16/1999 | DE19549600C2 FM frequency swing measurement device for RF emitted by sender |
09/15/1999 | EP0942572A2 Portable communication terminal |
09/15/1999 | CN1228644A System and method of testing overall and individual antennas of switched space diversity receiver |
09/14/1999 | US5953669 Method and apparatus for predicting signal characteristics in a wireless communication system |
09/14/1999 | US5953660 Supervisory audio tone detection using digital signal processing |
09/10/1999 | WO1999033217A3 Method for frequency error estimation |
09/09/1999 | DE19805647A1 Method of detecting the transmission quality of digital radio signals consisting of a regular sequence of data symbols separated by null symbols |
09/08/1999 | EP0940931A2 Method for emulating multipath fading radio channels |
09/07/1999 | US5950139 Radiotelephone with user perceivable visual signal quality indicator |
09/07/1999 | US5950110 Jamming detection in a wireless security system |
09/07/1999 | US5949988 Prediction system for RF power distribution |
09/07/1999 | US5949776 Hierarchical communication system using premises, peripheral and vehicular local area networking |
09/02/1999 | WO1999044385A1 Device and method for detecting the presence of an operating cellular telephone of the gsm type or any other mobile unit |
09/02/1999 | WO1999044317A2 Protection of wdm-channels |
09/02/1999 | CA2319028A1 Device and method for detecting the presence of an operating cellular telephone of the gsm type or any other mobile unit |
09/01/1999 | CN1227446A Channel monitoring apparatus in wavelength division multiplexing system |
08/31/1999 | US5946631 Real-time CSMA method having the capability to adaptively vary cell sizes and a wireless network for implementing the same |
08/31/1999 | US5946606 Internal wrap test circuit in radio equipment and test method thereof |
08/31/1999 | US5946359 Parameter measuring apparatus for digital quadrature modulation signals |
08/31/1999 | US5944844 Method for determining connection quality in a receiver utilizing a Viterbi decoder |
08/26/1999 | CA2261981A1 A gain control arrangement and method |
08/25/1999 | EP0938204A1 Calibration device for array antenna wireless receiver |
08/25/1999 | EP0937312A1 Antenna adapter |
08/25/1999 | EP0616742B1 Spatial division multiple access wireless communication systems |
08/24/1999 | US5943617 Radio channel test system for mobile telecommunication system with test terminals in radio service zones of radio base stations |
08/19/1999 | WO1999041842A1 Tuning method and transceiver unit |
08/19/1999 | DE19823523C1 Base station testing method for radio communications system |
08/18/1999 | EP0935897A1 Method of measuring traffic densities |
08/18/1999 | CN1226107A Off-channel leakage power monitoring apparatus and method |
08/17/1999 | US5940771 Network supporting roaming, sleeping terminals |
08/17/1999 | US5940754 Method of fault identification for multiplexed devices |
08/17/1999 | US5940749 Apparatus for eliminating external interference signals in code division multiple access mobile phone and method therefor |
08/12/1999 | WO1999040689A1 Power control with signal quality estimation for smart antenna array communication systems |
08/12/1999 | WO1999033204B1 Method and apparatus for determining characteristics of components of a communication channel under load |
08/11/1999 | EP0935356A2 System for monitoring a digital bidirectional optical communication line |
08/11/1999 | EP0935339A1 Versatile signal generator |
08/11/1999 | EP0934609A1 Calibration method and arrangement |
08/11/1999 | EP0688487A4 Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto |
08/10/1999 | US5937006 Frequency translating device transmission response method |
08/10/1999 | US5937005 Error rate measurement apparatus for a mobile radio communications system |
08/10/1999 | US5937004 Apparatus and method for verifying performance of digital processing board of an RF receiver |
08/10/1999 | CA2165075C A method for validating a communication link |
08/05/1999 | WO1999039529A1 Radio system and method for reducing signalling |
08/05/1999 | WO1999039460A1 Tdma |
08/05/1999 | DE19803691A1 Transmission channel control method for communication network |