A communication device includes: an acquisition unit that acquires first position information indicating a first position of the communication device and first position error information indicating an error of the first position; a reception unit that receives second position information indicating a second position of a communication device and second position error information indicating an error of the second position acquired by the communication device; a first calculation unit that calculates a first arrival direction and a first arrival direction error based on one or more pieces of information out of the first position information and so on; a second calculation unit that calculates a second arrival direction; and a judgment unit that makes the second calculation unit revise the second arrival direction based on the first arrival direction when the first arrival direction error is smaller than a first threshold value.

According to one embodiment, a method of recommending workstations is provided. The method comprising: determining a location of a mobile device; determining a zone of interest for the mobile device in response to the location; determining a list of available workstations within the zone of interest; and displaying the list of available workstations within the zone of interests on the mobile device.

According to one embodiment, a method of recommending workstations is provided. The method comprising: determining a location of a mobile device; determining a zone of interest for the mobile device in response to the location; determining a list of available workstations within the zone of interest; and displaying the list of available workstations within the zone of interests on the mobile device.

An electronic device may include a plurality of antennas, a memory storing at least one reference data, and a processor. The processor may be configured to obtain context information associated with a state of the electronic device, when the context information meets a first specified condition, determine phase difference information corresponding to signals obtained using the plurality of antennas based on first specified reference data, when the context information meets a second specified condition, determine phase difference information corresponding to signals obtained using the plurality of antennas based on second specified reference data, and determine a relative location of an external electronic device with respect to the electronic device based on the determined phase difference information.

A method of timeslot-wise detection of at least one radio signal in a cellular radio network. A radio signal is received via at least one first radio antenna and at least one second radio antenna. The radio signal received by the respective radio antennas is forwarded to at least one first radio receiver assigned to the first radio antenna and to at least one second radio receiver assigned to the second radio antenna. The radio signal forwarded is evaluated. The radio receivers are synchronized with a preconfigured frame structure. At least one identical time slot is selected out of the frame structure Timing information of the selected time slot is provided from the first radio receiver to the second radio receiver, from the second radio receiver to the first radio receiver and/or from the respective radio receiver to a central unit for calculating a time difference of arrival. Further, a device for timeslot-wise detection is described.

The described disclosure presents embodiments of an efficient shortwave radio technique using a network of multiple sites located in and around an operating region (e.g., continental USA), calibrated distributed beacons, a detailed knowledge of ionospheric behavior, and sophisticated operational tools and software, that geo-locates targets without depending on satellites. The embodiments of the technique described herein, for example, accurately may locate a target by utilizing remote field units, a network of radio receive sites, receivers that accept and time stamp pertinent signals, demodulators that recognize and extract meaningful data from received signals, communications from all receive sites to a Network Operations Center (NOC), communications from NOC to field units to keep shortwave channel choices relevant and effective, and a processor within the NOC that analyzes and evaluates data.

The described disclosure presents embodiments of an efficient shortwave radio technique using a network of multiple sites located in and around an operating region (e.g., continental USA), calibrated distributed beacons, a detailed knowledge of ionospheric behavior, and sophisticated operational tools and software, that geo-locates targets without depending on satellites. The embodiments of the technique described herein, for example, accurately may locate a target by utilizing remote field units, a network of radio receive sites, receivers that accept and time stamp pertinent signals, demodulators that recognize and extract meaningful data from received signals, communications from all receive sites to a Network Operations Center (NOC), communications from NOC to field units to keep shortwave channel choices relevant and effective, and a processor within the NOC that analyzes and evaluates data.

A corner sensor for a motor vehicle capable of communicating over a wireless communication link with an authentication device and including: an array of antennae; and an electronic control unit configured to: determine the phase difference between the segments received by the antennae; determine the probability of each angle of incidence over a range of angles that is predetermined on the basis of the determined phase differences and of a predefined table, so as to determine a probability profile; measure the power of the segments received by the antennae of the array of antennae so as to determine a power profile; determine the actual angle of incidence of the signal by multiplying the probability profile with the power profile; and send the value of the determined actual angle of incidence to a central electronic control unit of the vehicle.

An information handling system operating a diverse wireless location determination system, comprising receiving an instruction to determine a location of an endpoint information handling system having a plurality of network interface device modules supporting a plurality of wireless network protocols, a processor executing instructions to aggregate data including detected time of flight (TOF) signal distance and signal quality values relating to signals exchanged between the endpoint information handling system and a plurality of diverse wireless protocol access points, the processor to determine at least three diverse wireless protocol access point signals meet a signal quality threshold, where at least two of the diverse wireless protocol access points operate under different wireless protocols, and the processor conducting weighted multiangulation or multilateration utilizing the detected TOF signal distances of the exchanged signals based on the detected signal quality category and type of wireless protocol for the exchanged signal.

An information handling system operating a diverse wireless location determination system, comprising receiving an instruction to determine a location of an endpoint information handling system having a plurality of network interface device modules supporting a plurality of wireless network protocols, a processor executing instructions to aggregate data including detected time of flight (TOF) signal distance and signal quality values relating to signals exchanged between the endpoint information handling system and a plurality of diverse wireless protocol access points, the processor to determine at least three diverse wireless protocol access point signals meet a signal quality threshold, where at least two of the diverse wireless protocol access points operate under different wireless protocols, and the processor conducting weighted multiangulation or multilateration utilizing the detected TOF signal distances of the exchanged signals based on the detected signal quality category and type of wireless protocol for the exchanged signal.