Abstract: A network managing method is utilized for a wireless network system. The wireless network includes multiple wireless access equipments and multiple user equipments. The method uses the wireless access equipments to measure a plurality of echo back time of the user equipments to obtain multiple measurement results, determines locations of the user equipments according to the measurement results and locations of the wireless access equipments, and adjusts wireless operations from the wireless access equipments to the user equipments according to the locations and priorities of the user equipments.

Abstract: A device for detecting wireless signals and locating the place of origin in a building is provided that includes a transmitter system using a cellular protocol; a plurality of antennae that receive wireless Radio Frequency (RF) signals, each antenna having a port; a receiving system connected to the antennae ports with a plurality of cables, converting the RF signal to voltage waveform; a processing system in communication with the receiving system, detecting the strength of the received signals and Time Difference of Arrival of the RF signals with respect to antennae and determining the location where the wireless signals are being emitted by using classification algorithms; and a human machine interface.

Abstract: Navigation systems for use in indoor environments may include a navigation system that can calculate a time of flight of signals between a navigation device and a WiFi® Access Point. Such a calculation can be more accurate not just by using more accurate oscillators in devices, but by correcting a relative error between two devices. This relative error may be found by determining a timing offset correction, a difference in accuracy between the navigation device and the WiFi® Access Point. This may be performed by performing a fine frequency estimation on a long training field or by receiving a parts per million (ppm) offset from another device. Once the ppm offset is determined, the accuracy of the navigation device can be improved by a factor of 50 using a series of equations described in the disclosure.

Abstract: A method and system for detecting that an object, person or vehicle has deviated in space or time from its prescribed route, and guiding it back to the prescribed route, according to strictness criteria predefined by a controlling authority or authorities. The invention allows controlling authorities to pre-specify a level of strictness suiting the object, person or vehicle and purpose of travel, by which the object, person or vehicle is guided back to the prescribed route autonomously, enabling return to route according to established policies, without the necessity of further communication with controlling authorities. The method and system thus operate semi-autonomously, with strictness parameters predefined by the central authorities, and the object, person or vehicle operating with some degree of latitude within those strictness parameters.

Abstract: A second wireless station includes a communicating unit that transmits a packet to a first wireless station and retransmits the packet when a response signal for the packet is not received by a predetermined response time limit; an acquiring unit that acquires from the first wireless station, transmission prohibition period information indicating a transmission prohibition period during which transmission of a signal by the first wireless station is prohibited; and a postponing unit that postpones the response time limit in the transmission prohibition period indicated by the acquired transmission prohibition period information to be after the transmission prohibition period ends.

Abstract: The present disclosure provides a ranging method by using a first signal transmitted by a first device, and a second signal generated and transmitted by a target device in response to the first signal. The ranging method calculates the distance between the target device and a second device being in communication with the first and target devices, by using: a first time interval from a point in time of first device's transmitting the first signal to a point of receiving first part of the second signal; a second time interval from a point of the second device's receiving the first signal to a point receiving the first part of the second signal; and a delay time interval from a point of the target device's receiving the first signal to a start time of the second signal and a duration of the first part of the second signal.

Abstract: An apparatus including narrowband receivers and a controller. The narrowband receivers are deployed geographically within a grid, where each of the narrowband receivers is configured to receive transmissions from a least one of a plurality of automated meter reading (AMR) meters, and where each of the plurality of AMR meters transmits identical data on each of a plurality of frequency bands that are hopped according to an unknown hopping sequence, but a known hop rate. The controller is coupled to the narrowband receivers, and is configured to control the narrowband receivers such that the each of the plurality of AMR meters is identified, and is configured to control the narrowband receivers such that corresponding data from the each of the AMR meters is received on at least one of the plurality of frequency bands.

Abstract: Disclosed are a reference signal transmission method and system for location measurement, a location measurement method, device, and system using the same, and a time synchronization method and device using the same. A method for transmitting reference signals at two signal sources according to an embodiment of the present invention includes step (a) of transmitting a reference signal at a first signal source and transmitting a reference signal (hereinafter, a second reference signal) at a second signal source in response to reception of the reference signal from the first signal source, and step (b) of transmitting a reference signal (hereinafter, a first reference signal) at the first signal source in response to reception of the second reference signal from the second signal source, wherein the steps (a) and (b) are repeatedly performed.

Abstract: A system and method uses a communication request and/or historical data collected by one or more devices to identify whether to fulfill the request using ad hoc networking or access points. If an access point is determined to be used, the system and method attempts to identify those access points that can best fulfill the request and then attempts to use such access points to fulfill the request.

Abstract: A system and method of determining the location of a mobile device. Network measurement report information may be received from a target mobile device, the NMR having measurement information and range information of the target mobile device from a cell serving the device. The serving cell may be divided a plurality of subsectors and candidate locations placed on an intersection of a range formed from the range information and bisectors of the plurality of subsectors. A subset of neighboring and serving cells may be selected as a function of the NMR measurement information and a radio frequency (RF) coverage centroid determined for each of the selected neighboring cells. A centroid of the determined RF centroids may be determined, and a location of the target mobile device estimated as the candidate location having a minimum distance to the determined centroid.

Abstract: A method in a communication network including a communication channel includes generating a first message, where the first message includes a field indicative of a direction along which a quality of the communication channel is to be measured, causing the first message to be transmitted to a target device, and receiving a second message responsive to the first message, where the second message includes at least one channel quality metric.

Abstract: Methods and systems for grouping computing devices together based on the devices being colocated with one another or being associated with complementary usage contexts, and then using the location or usage context of one device in the group to estimate the location or usage context of another device in the group are described. An example method may include receiving first sensor data from sensors of a first computing device; receiving second sensor data from sensors of a second computing device; determining, based on the received sensor data, that the first and second computing devices are colocated with one another; identifying, based on the first sensor data, a context associated with the first computing device; and determining, based at least in part on the context associated with the first computing device, a context associated with the second computing device.

Abstract: An antenna array may stagger the signal of one or more beams within a single base station sector. The time-delayed beams may have a watermark within the signal they are carrying. The receiving unit then may identify the beam as a time-delayed beam and compensate for the delay using stored data. The receiving unit may transmit the beam identification information to the base station and receive the time delay data.

Abstract: The present disclosure provides an accident alert system for preventing secondary collisions. The system for preventing a secondary accident comprises a terminal configured to have a global positioning system (GPS) navigation capability, monitor and display a driving state and an accident state of a vehicle, transmit information on a driving state and the accident state via a communication network, and display information received on a screen; and a server platform configured to exchange information with the terminal, include an algorithm for determining the occurrence of an accident based on the information on the driving state and the accident state received from the terminal and traffic information, and inform other terminals of the occurrence of the accident.

Abstract: A method of determining geographical determination of coverage in a mobile communications system by obtaining measurement data provided by a plurality of mobile terminals the method comprising the steps of: requesting terminal capability information from the subscriber terminals in a cell; obtaining the terminal capability information from the subscriber terminals; comparing the terminal capability information with capability requirement information; selecting selected subscriber terminals on the basis of their capability information; sending a trace activation command to the selected subscriber terminals; and receiving measurement data measured by the selected subscriber terminals.

Abstract: It is disclosed to insert an anti-whitened data block, which is obtainable from a specific data block by anti-whitening, into a data block that is to be whitened by a whitening to yield a whitened data block, wherein the anti-whitening compensates the whitening so that the whitened data block will comprise the specific data block in non-whitened form. It is further disclosed to output, in a first operating mode, an output data block generated by one of whitening and de-whitening an input data block in its entirety, and outputting, in a second operating mode, one of: an output data block generated by one of whitening and de-whitening all parts of an input data block under exclusion of a specific data block contained in the input data block.

Abstract: Synchronization for achieving low power battery operation of a vehicle locating unit in a stolen vehicle recovery system whose radio receiver receives periodic transmissions, includes receiving periodic transmissions; turning on a radio receiver for a limited time to detect an expected message; if an expected message is not found, turning off the receiver and turning it on again after a time asynchronous with the transmission period; and after finding an expected message, waiting for the period of the transmissions less the length of an expected message and then looking for a synchronization symbol in the expected message and synchronizing subsequent actuation of the receiver using that synchronization symbol.

Abstract: A system and method is provided for providing location based services. The system includes at least one module configured to publish location information of a mobile user using a publish subscribe format based on a user preference mode of notification.

Abstract: Method, system and computer product are provided for a computer implemented method for providing a confidence measure for speaker diarization. The method includes: receiving an audio session as unsegmented audio data; computing a spectral ratio of principal component analysis (PCA) of sections of the received audio session by a ratio between the largest eigenvalue and the second largest eigenvalue; using the PCA spectral ratio as a confidence measure for speaker diarization processing.

Abstract: A method for searching for a radio cell is provided comprising determining, for each of a plurality of frequencies, a reception strength value indicating the reception strength within a first bandwidth around the frequency, wherein the first bandwidth is smaller than a second bandwidth with which a radio cell to be searched is operated; determining, based on the determined reception strength values, a spectral position for a radio cell at which a cell search is to be carried out; and carrying out a cell search at the determined spectral position.

Abstract: A locator system and method of use is disclosed. The locator system may be used to receive radiolocation signals, calculate location data based on the radiolocation signals, and send the current location data over a telecommunication network to a server computer. A client may request the location data from the server computer and the server may send the location data to the client.

Abstract: Accurate position capability can be quickly provided using a Wireless Local Area Network (WLAN). When associated with a WLAN, a wireless device can quickly determine its relative and/or coordinate position based on information provided by an access point in the WLAN. Before a wireless device disassociates with the access point, the WLAN can periodically provide time, location, and decoded GPS data to the wireless device. In this manner, the wireless device can significantly reduce the time to acquire the necessary GPS satellite data (i.e. on the order of seconds instead of minutes) to determine its coordinate position.

Abstract: Systems and methods are disclosed for providing private location tracking. In general, a location-aware mobile device includes a location broker. Over time, as a location of the mobile device changes, the location broker generates a number of route fragments each defining the location of the mobile device over a corresponding period of time. The location broker obfuscates the route fragments and sends the obfuscated route fragments to a remote server for storage. At some point, the location broker receives a location tracking request from a requestor. In response, the location broker processes the location tracking request such that one or more obfuscated route fragments that are relevant to the location tracking request are obtained from the remote server and de-obfuscated to recover the corresponding route fragments. The recovered route fragments may then be utilized by the requestor.

Abstract: In providing a wireless location communication service including a location based service to a user of a mobile device, the mobile device sends information concerning a location of the device relative to a given position in a wireless communication system. The given position may be that of a base station in the system. First information concerning a location of the base station (e.g, GPS information) is communicated to the mobile device, e.g., via broadcast. The mobile device determines second information concerning its location, e.g., based on signals from GPS satellites received thereby. The mobile device then generates relative location information based at least on the first and second information.

Abstract: A system and method for communicating information between vehicle operators. The method includes receiving a request from a send vehicle operator to communicate a vehicle information message from a send vehicle. The method also includes generating the vehicle information message at the send vehicle. The method further includes sending the vehicle information message from the send vehicle to a receive vehicle.

Abstract: A method of determining a position of a target device includes: sending a first measurement signal from a first known-position device; receiving the first measurement signal at a second known-position device; receiving a first acknowledgement signal from the target device at the first known-position device and at the second known-position device; determining the position of the target device using first timing information associated with the first measurement signal and the first acknowledgement signal, a first position of the first known-position device, and a second position of the second known-position device.

Abstract: A system for obtaining information relating to an idle mobile station in a cellular network is provided. The system includes a computing platform which is in communication with a radio network controller of the cellular network. The computing platform is configured for (i) generating and sending an input signal through the radio network controller to the radio access network; and (ii) identifying in data outputted by the radio network controller an output signal resulting from the input signal, the output signal including information relating to at least one idle mobile station.

Abstract: A system and method for controlling power usage of a reporting device associated with an asset is disclosed. According to one embodiment, a method determines whether the reporting device is in a sleep mode or an active mode and in response to determining the reporting device is in the sleep mode, the method maintains the sleep mode and in response to determining a state change associated with the reporting device, the method powers up the reporting device to the active mode.

Abstract: A method of determining a position of a moving vehicle. A global position is detected by a global positioning device of at least one parked vehicle in a vicinity of the moving vehicle. The global position is determined as a function of signals broadcast by a plurality of satellites. Errors associated with the broadcast signals are determined. A correction error that provides a solution for eliminating the errors associated with the broadcast signals is determined. The correction error is transmitted to the moving vehicle. The correction error is applied to a received global positioning signal received by the moving vehicle. A global position of the moving vehicle is determined as a function of the correction error. The determined global position of the moving vehicle is applied in a vehicle application.

Abstract: Arrangement and method for monitoring a material storage container which includes a housing defining an interior receivable of removable material. An interior sensor system is arranged on the housing to obtain information about any material in the interior of the housing different than the location of the container. A location determining system is arranged on the housing to monitor the location of the container, and a communication system is coupled to the interior sensor system and the location determining system and transmits information about the material in the housing and the location of the container to one or more remote facilities. The communication system may be arranged on the housing itself, which is especially applicable when the housing is movable, for example, such as the housing of a Frac tank. The location and condition of the material in the container can thus be known at all times.

Abstract: A location system and applications therefor is disclosed for wireless telecommunication infrastructures. The system is an end-to-end solution having one or more location systems for outputting requested locations of hand sets or mobile stations (MS) based on, e.g., CDMA, GSM, GPRS, TDMA or WIFI communication standards, for processing both local mobile station location requests and more global mobile station location requests via, e.g., Internet communication between a distributed network of location systems. The following applications may be enabled by the location system: 911 emergency calls, tracking, navigation, people and animal location including applications for confinement to and exclusion from certain areas, friend finder applications, and applications for allocating user desired resources based on the user's location.

Abstract: A vehicular wireless communication apparatus disposed in a subject vehicle determines whether a travel locus of the subject vehicle is similar to a travel locus of a lead vehicle. When the travel locus of the subject vehicle and the lead vehicle are similar, the apparatus transmits the lead vehicle's device identification (ID) and a latest position information of the subject vehicle in place of travel locus information of the subject vehicle from the apparatus to other vehicles at regular interval.

Abstract: A method for positioning a terminal using signals received from a plurality of access points of at least one wireless telecommunications network is disclosed. According to some aspects, the terminal first retrieves identifiers of the access points from the received signals, then searches in a first database (BDP) for respective geographical position information for the access points. A first estimation of a position of the terminal or a positioning zone of the terminal is obtained from geographical position information of the access points, then topographical information corresponding to the first estimation of the position or the positioning zone is retrieved from a second database (SIG). A second estimation of the position of the terminal is performed using the topographical information thus obtained.

Abstract: A system includes a vehicle-based processor configured to receive a wireless vehicle-locate request from a remote device. The processor is also configured to receive an instruction from the remote device relating to selection of an outputtable tone and output, through use of one or more external vehicle sound systems, a selected tone in accordance with the instruction.

Abstract: Methods of and systems for measuring beacon stability of wireless access points are provided. A method of determining a measure of likelihood that a designated wireless device exhibits at least one pathological characteristic includes determining a set of reference points associated with a designated wireless device, and retrieving attributes of the reference points, attributes associated with other wireless devices related to the designated wireless device, and/or statistical information. The statistical information includes a temporal distribution of detection of signals of reference points, a spatial distribution of the reference points, and/or a cardinality of the set or a subset of the reference points. The method further includes determining a measure of likelihood that the designated wireless device exhibits at least one pathological characteristic based on attributes of the reference points, attributes associated with the reception of signals, and/or the statistical information.

Abstract: Systems and methods disclosed herein can implement a femtocell calibration solution that uses the known location of the femtocell to calibrate timing based locating systems. The calculated time differences of different signals sent between macrocells and a mobile device can be used to solve for a reference time difference that accounts for the timing differences of the unsynchronized macrocells. The reference time difference can then be used to solve for the location of another mobile device if the calculated time differences between that mobile device and the macrocells are known. The solution can include taking many measurements of the calculated time difference at the first mobile device in order to average them to get a more accurate reference time difference. The solution can further include ceasing measurements at the first mobile device when the mobile device is no longer within range of the femtocell.

Abstract: A method of using a non-GPS-derived technique to estimate the location of an Assisted-GPS-enabled wireless terminal for the purposes of generating location-specific assistance data for the wireless terminal is disclosed. The wireless terminal then uses the assistance data to acquire and process one or more GPS signals and to derive information that is probative of the wireless terminal's location. The GPS-derived location information is then combined with non-GPS-derived location to form an estimate of the location of the wireless terminal that is better than can be derived from either alone. This combination of GPS-derived and non-GPS techniques is particularly useful when the wireless terminal can only acquire one or two GPS signals because it is not possible to determine the location of the wireless terminal with only two GPS signals alone.

Abstract: Provided is a system for detecting an accident location, including: a navigation apparatus to extract identification information of a preinstalled apparatus, first distance information between the apparatus and at least one base station, and second distance information between the apparatus and a geostationary satellite, when an impact is applied to the apparatus; and an apparatus control center to compute location information of the navigation apparatus based on the identification information, the first distance information, and the second distance information, wherein the at least one base station receives the first distance information from the navigation apparatus and transmits the first distance information to the apparatus control center, and the geostationary satellite receives the second distance information from the navigation apparatus and transmits the second distance information to the apparatus control center.

Abstract: An autonomous vehicle positioning system for determining a position of a remote vehicle relative to a mobile host vehicle based on safety alert messages broadcast from the remote vehicle relating to an event in a road of travel. A host vehicle communication unit communicates with the remote vehicle for receiving the broadcast messages from the remote vehicle. A host vehicle control unit identifies reference points along the road of travel. Each reference point identifies a position of the host vehicle and associated signal reception properties, for example time-of-arrival, angle-of-arrival and received signal strength when the host vehicle receives the broadcast message. The control unit of the host vehicle selects a set of the reference points having identified positions and associated times, angles and signal strength.

Abstract: A method for operating a driver assistance system of a vehicle is described, together with a corresponding device, a corresponding vehicle, and a corresponding computer program. The driver assistance system is configured to autonomously safely park the vehicle when activated. While the vehicle is traveling, an activation intent for the driver assistance system is detected, whereupon the driver assistance system is activated and the vehicle is autonomously safely parked with the aid of the activated driver assistance system.

Abstract: A cellular telephone handset stores audio files previously recorded by the user as well as voice mail messages from other users and selectively transmitted selected ones of these files to the remote listener, or to the voice mail system of a remote user. Voice mail messages are composed, stored, transmitted, forwarded and reviewed using a voice mail system without ringing the remote party's telephone, much as email is composed, stored, transmitted and reviewed using an email server.

Abstract: A method and apparatus for limiting redundant positioning polling from a mobile device in a Real-Time Location System (RTLS) is disclosed. The method comprises reading a current position of the mobile device, establishing a virtual perimeter around the mobile device, measuring a plurality of signal strengths from a plurality of access points within the virtual perimeter, determining whether the mobile device has moved outside of the virtual perimeter, and transmitting a plurality of signal strengths from a plurality of access points to a location server when the mobile device has moved outside of the virtual perimeter.

Abstract: The present invention provides a method of unsupervised learning and location for tracking users in a wireless communication system. One embodiment of the method includes forming a signal map of a geographic area using unlabeled values of one or more signals so that the signal map relates locations in the geographic area to values of the signal(s).

Abstract: A vehicle can be controlled in a first autonomous mode of operation by at least navigating the vehicle based on map data. Sensor data can be obtained using one or more sensors of the vehicle. The sensor data can be indicative of an environment of the vehicle. An inadequacy in the map data can be detected by at least comparing the map data to the sensor data. In response to detecting the inadequacy in the map data, the vehicle can be controlled in a second autonomous mode of operation and a user can be prompted to switch to a manual mode of operation. The vehicle can be controlled in the second autonomous mode of operation by at least obtaining additional sensor data using the one or more sensors of the vehicle and navigating the vehicle based on the additional sensor data.

Abstract: Before a vehicle is parked, a signal is received from at least one of a base station and a location determination system. It is determined when the signal fails to meet at least one predetermined criteria. When the signal fails to meet the at least one predetermined criteria, a warning message is formed and presented to an operator of the vehicle.

Abstract: A drive assist system includes: wireless communication devices on first and second vehicles. The wireless communication device on the first vehicle includes: a distance calculation device for calculating a satellite positioning distance between the first and second vehicles; and a difference calculation device for calculating a distance difference between the satellite positioning distance and a distance to the second vehicle obtained by a ranging sensor in the first vehicle.

Abstract: Communications are established and conducted between a communication and jamming detection at a vehicle and a base station. At the communication and jamming detection device, a determination is made as to when jamming of the communications between the communication and jamming detection device and the base station is occurring. When jamming is determined to be occurring, at least one location determination signal is transmitted from the communication and jamming detection device to at least one external tracking device. At the at least one external location determination device, the at least one location determination signal is received from the communication and jamming detection device. The location of the communication and jamming detection device at the vehicle is determined from the at least one location determination signal.

Abstract: Vehicle control system and method in which restrictions on travel of the vehicle are determined based on an indication of the visibility of a driver and information about objects moving in a direction opposite to the direction of travel of the vehicle are considered. The travel restrictions include preventing a passing maneuver on a two-lane road when an oncoming vehicle precludes safely initiating or completing an already-initiated passing maneuver. A warning system is provided to warn a driver about the travel restrictions so that the driver will, hopefully, not attempt an unsafe maneuver.

Abstract: An RFID localization system includes RFID tags positioned at known locations in a local frame of reference. Each RFID tag generates an RF signal indicative of its unique identity. RF antennas are mounted on a mobile vehicle at known positions/orientations relative to a reference point thereon. Each antenna has a range-bounded field-of-view associated therewith and detects each RF signal generated by any of the RFID tags within its range-bounded field-of-view. A processor coupled to the antennas stores information to include (i) each of the known locations of the RFID tags along with their unique identification, (ii) each known position and orientation of the antennas, and (iii) each range-bounded field-of-view associated with each antenna. The processor implements an evolutionary optimization scheme using the stored information based on each RF signal so-detected in order to determine a position and orientation of the mobile vehicle in the local frame of reference.

Abstract: The invention relates to an apparatus and method for estimating the distance between a transmitter and a receiver. A method comprising obtaining a signal from a receiver; determining whether the signal more likely propagated through a line-of-sight (LOS) radio channel or a non lme-of-sight (NLOS) radio channel; using a model including parameters selected according to the radio channel to estimate the distance between the receiver and a transmitter which sent the signal.