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6876851 Method and system for radio wave propagation characteristics estimation and ray spatial resolution control  
To shorten a required estimation time while keeping an estimation precision in an object environment given for estimating propagation characteristics with a ray launching method. In the case where...
6873852 System and method of estimating the position of a mobile terminal in a radio telecommunications network  
A system and method of estimating the position of a mobile terminal (MT) operating in a radio telecommunications network. Expected Received Signal Strength (RSS) values are predicted by a...
6873827 Method and apparatus for providing feeder cable insertion loss detection in a transmission system without interfering with normal operation  
A method and apparatus for measuring a change in the insertion loss of a transmission line in a communication system is disclosed. The method provides feeder cable insertion loss detection in a...
6862447 Method of making downlink operational measurements in a wireless communication system  
In the method of making downlink operational measurements a measurement request from one of a main controller and a first base station is sent to at least a second base station. The measurement...
6856604 Efficient multi-cast broadcasting for packet data systems  
Methods and apparatus are presented for efficient broadcasting in wireless packet data systems. A single MAC_ID is used for broadcasting to a group of subscribers. By using the channel quality...
6856802 Method and apparatus for measuring and optimising the quality of data transmission  
The invention concerns a method and associated hardware units for testing the functioning of downlink data communication in a mobile station (202, 802, 902). The mobile station is equipped for...
6853842 System and method for using mobile station signal strength measurements to collect radio frequency isolation data in a cellular network  
A system and method collects radio frequency isolation values with the assistance of mobile stations operating within a cellular wireless communication system. A broadcast channel and a broadcast...
6847804 Apparatus and method for testing micropower short-wave frequency-modulated digital radio  
A method for testing micropower short-wave frequency-modulation digital radio includes the steps of providing at each test station on a production line with a steel cage that is adapted to...
6842608 Response calibration scheme using frequency-shifted stimulus signals  
The response of a receiver is calibrated using frequency-shifted stimulus signals. A source provides a stimulus signal that has a non-zero bandwidth and an adjustable spectral position. A signal...
6839544 System and method for remote monitoring of a transmitter in a wireless base station  
There is disclosed a signal monitoring apparatus for use in a wireless network base station containing a modular main unit for processing baseband signals and a modular radio unit separate from...
6832075 Method for calibrating the power output of a mobile device  
A loopback module includes a plurality of signal paths and is designed to mix an incoming phone signal with a signal from a signal generator to produce a loopback signal at the receive frequency...
6819924 Universal quality measurement system for multimedia and other signals  
A method for measuring perceptual quality of voice signals, audio signals, audio-video signals, and multimedia signals in communication equipment in an operational embodiment communicates a...
6816708 Measuring instrument with multiple signal terminals shared in multiple operation modes  
A housing 1 contains a plurality of signal processing units for performing signal processing corresponding to a plurality of operation modes. At a front surface 1a of the housing, an operation...
6813477 Spurious-response interference tester  
A system for testing protection against spurious response interference in a radio receiver by imposing wide band interference signals. An interference generator (210) produces a wideband...
6813478 Method and apparatus for searching a gated pilot  
Techniques to search for a gated pilot reference in a wireless communication system. In one method, an overall code space in which the pilot may be found is partitioned into a number of groups of...
6804826 Radio frequency leakage detection system for CATV system  
A communication circuit carries at least one signal including synchronizing intervals by which output of the signal by first apparatus coupled to the communication circuit is to be synchronized. A...
6790116 Radio communication apparatus and radio frequency correcting method  
To ensure frequency stability of a radio frequency in a radio communication apparatus for generating the radio frequency synchronizing with a transmission path frequency of digital data...
6788948 Frequency dependent calibration of a wideband radio system using narrowband channels  
A method and apparatus are provided that determine group delay for a set of transmit or receive chains over a wide frequency band without causing significant interference with simultaneous users...
6785516 Testing device for wireless transmission towers  
A test device to isolate and locate problems in a wireless transmission antenna system by selectively inducing multiple faults in an independent integral configuration. The test device is used in...
6782257 Method for modeling an information capacity of a multiantenna wireless system  
Methods of designing, installing and operating communications systems including multiple input multiple output (MIMO) antenna arrays are disclosed. The methods account for the diffusive nature,...
6778823 Method for testing the quality of mobile radio networks  
The invention relates to a method of testing the quality of mobile wireless networks which rules out subjective influences as much as possible in the evaluation of quality. According to this...
6771932 Method and system for automatically determining lines of sight between nodes  
The present invention uses data from several sources to determine lines-of-sight between nodes in a FSO network. The present invention provides a three-dimensional neighborhood modeling system...
6760582 Method and apparatus for testing assisted position location capable devices  
A method and apparatus for testing assisted position location capable devices that includes providing a position determination entity (PDE) simulator that is in communication with a base station...
6754502 Geolocation of cellular phone using supervisory audio tone transmitted from single base station  
In order to geolocate a wireless communication device (cellular phone) initiating a 911 call, a base station transceiver transmits a supervisory audio tone (SAT), which is automatically looped...
6731907 Call restriction method for base station in cellular radio communication system  
A method for restricting a reverse call in a base station is disclosed. The method comprising the steps of: calculating the noise power of the base station; measuring the total receiving power of...
6728515 Tuned wave phased array  
A tuned wave phased array includes a plurality of spaced transmitter elements, a signal generator that produces an activation signal for activating the transmitter elements to transmit a guided...
6725018 Signal improvement by predistortion/postdistortion of programmable converter  
In accordance with the present invention, a communications system transmits a predetermined signal, from a first, sending, end of a communications system to a second, receiving, end of a...
6714779 Automated testing for cellular telephone system including emergency positioning  
A method for automatically testing cellular telephone equipment includes a method for determining a geographic location of a mobile unit. The system includes monitoring sites located, e.g., at...
6697604 Method for testing the functioning of a radio apparatus, and a mobile station  
A method for testing the function of a mobile station includes starting the generation and transmission of uplink data to a testing apparatus in response to a downlink message of a certain...
6694140 Channel entering method for a wireless communication system and subscriber station  
The invention relates to Channel entering method for a wireless communication system, in particular an indoor network, comprising a plurality of subscriber stations (S1 to Sn, n≧2), each of said...
6690921 Receiving apparatus, base station apparatus using same and radio communication system  
A gain of a receiving amplifier can be measured by inputting pilot signals each having a different frequency into an input side and an output side of the receiving amplifier respectively, then...
6687514 Base station for a radio communications system  
A base station for a radio communications systems contains at least one carrier-related transceiver device and at least one central unit for controlling the base station. The transceiver device...
6687501 System and method of dynamically calibrating based station timing using location information  
A system and method for dynamically calibrating a base station in a wireless communication system, is presented herein. In accordance with an embodiment of the invention, the system includes a...
6680913 Method and system for testing data channel functionality in a radio apparatus  
A mobile station comprises means (301, 302, 303, 304, 326) for receiving downlink data from test equipment and means (331, 310, 311, 312, 313) for sending uplink data to the test equipment. To...
6678525 Method and apparatus for modeling the propagation of wireless signals in buildings  
Techniques for predicting RF signal propagation in indoor environments are disclosed. A typical technique comprises six distinct phases. In one phase, the mean wall separation, {overscore (d)}, of...
6668160 Method and system for monitoring a radio transmission link  
A radio transmission link between at least one radio transmission device is monitored and at least one radio reception device. Radio transmission links between at least one transmission antenna...
6668161 Determining a spatial signature using a robust calibration signal  
A partial spatial signature can be determined to be used in calibration. In one embodiment, determining the partial spatial signature includes receiving a first segment of a waveform, the first...
6665522 Method and arrangement in a radio communication system  
The present invention is related to a method and arrangement in a radio communication system for performing a message transfer transaction in which at least one message is transferred in at least...
6662008 System and method for testing a communication system  
A technique for testing a communication system involves establishing a Test System Identification value (TSID value) to represent a test system and associated test activity within the...
6662009 Methods and apparatus for performance testing of cordless telephones  
Methods and apparatus for performance testing of an analog cordless telephone are addressed herein. A telephone base station is connected to a test controller which directs the base station to...
6654590 Determining a calibration function using at least one remote terminal  
A calibration function for calibrating a base station can be determined using one or more remote terminals. In one embodiment of the present invention, determining the calibration function...
6647246 Apparatus and method of synchronization using delay measurements  
This invention pertains in general to a method of synchronizing remote stations in a communications system and, more particularly, to a method for measuring delay between two remote stations in a...
6640088 Method and system for adaptive channel estimation techniques  
The invention provides a method of determining an adaptive channel estimation by providing a channel estimate, determining at least one channel condition, and determining an adapted channel...
6640101 Remote transmission testing and monitoring to a cell site in a cellular communications network  
Systems and methods provide remote performance monitoring and testing to a cell site in a cellular communications network. The systems and methods include a network management center having remote...
6636722 Broadband receiver amplitude/phase normalization using a broadband temperature compensated noise source and a pseudo random sequence generator  
A method of broadband receiver amplitude/phase normalization uses internal normalization sources—a thermally compensated noise source and a pseudo random sequence generator. A calibrated signal is...
6615024 Method and apparatus for determining signatures for calibrating a communication station having an antenna array  
A method and apparatus for estimating the downlink signature for a remote transceiver which is part of a wireless communication system that includes a main transceiver for communicating with the...
6608590 Alignment of antenna polarization axes  
A method for aligning an antenna polarization axes of a dual polarized end-user terminal having an antenna. The antenna is aligned with a satellite in relation to azimuth and elevation. The...
6594487 Reception device for a radio communication system for receiving subscriber signals via a radio interface  
A reception device is disclosed for a radio communication system for the reception of subscriber signals via a radio interface. The reception device contains a means for determining number of...
6571082 Wireless field test simulator  
A method and system for testing network-based location determination technologies within a single test area in the field. Channel models are developed to simulate the propagation impairment...
6546244 System and method for testing an assembled telephone  
A method for testing an assembled telephone (10) includes activating the telephone (10) and automatically transmitting a poll command from a processor (60) of the telephone on a bus (66) of the...