The disclosure inter alia relates to method, performed by at least one apparatus. The method includes obtaining information indicative of a use of an interfloor connector by a user of a mobile device; determining one or multiple potentially used interfloor connectors; and determining a horizontal position estimate of said mobile device at least based on one or multiple horizontal positions of said one or multiple determined potentially used interfloor connectors. The disclosure also relates to an apparatus including at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause an apparatus at least to perform the method.

Estimating a position of a mobile device. Particular systems and methods for estimating a position of a mobile device using information from two positioning technologies determine different position estimates for the mobile device using different positioning technologies, and determine a final position estimate for the mobile device using a weighted combination of the different position estimates. In some implementations, the weighted combination is a weighted average or a weighted median of the different position estimates. Weights may be determined using respective uncertainty metrics corresponding to the respective position estimates.

Systems and methods of using sensor data for coordinate prediction are disclosed herein. In some example embodiments, for a place, a computer system accesses corresponding service data comprising pick-up data and drop-off data for requests, and accesses corresponding sensor data indicating at least one path of mobile devices of the requesters of the requests, with the at least one path comprising at least one of a pick-up path ending at the pick-up location indicated by the pick-up data and a drop-off path beginning at the drop-off location indicated by the drop-off data. In some example embodiments, the computer system generates at least one predicted geographic location using the paths indicated by the sensor data, and stores the at least one predicted geographic location in a database in association with an identification of the place.

An indoor location measurement system and method using RF signal transmitters. A DB stores spatial information of a predetermined space and location information of a plurality of RF signal transmitters installed in the space. A communication unit receives measurement information from a user terminal that has received signal including identification information of an RF signal transmitter output from the wireless signal transmitter. The measurement information includes the identification information and signal strength information of the wireless signal. A controller corrects the signal strength information when an object is determined to be present between the user terminal and of the plurality of wireless signal transmitters in the space based on the spatial information, the location information, and the signal strength information, and measures a current location of the user terminal based on the corrected signal strength information.

In the vehicle communication system provided with the in-vehicle device for transmitting and receiving signals using the plurality of antennas, which are provided in different positions in the vehicle, and the portable device for transmitting and receiving the signals, the in-vehicle device: stores statistical values derived by measuring in advance received signal strengths of signals transmitted from a part of the plurality of antennas in association with information identifying antennas of transmission sources, for each of the inside and the outside of a vehicle cabin of measured positions; detects an antenna having a failure; calculates, for inside and outside the vehicle cabin, the statistical distance between the measured received signal strength and the statistical values corresponding to the selected antennas; makes a comparison between the results of the calculation; and determines whether the portable device is inside or outside the vehicle cabin.

A GPS-enabled cellular electronic device is operated in an indoor mode. An increase in strength of a cellular signal is detected at the GPS-enabled cellular electronic device. Responsive at least to the increase in cellular signal strength, the GPS-enabled cellular electronic device is transitioned to an outdoor testing mode. Detecting is carried out to determine whether movement of the GPS-enabled cellular electronic device occurs during the outdoor testing mode. If so, the GPS-enabled cellular electronic device is transitioned to an outdoor mode.

A method, device and system for generating position information in a mobile equipment provided with at least two position determination devices. Embodiments of the invention may include allocating to each position determination device at least one stored parameter value, determining a context information, depending on the context information, choosing a corresponding position determination device selection process based on the value of said at least one parameter for each position determination device, selecting a position determination device according to the chosen selection process, and activating said selected position determination device. Application to location based services may provide a better handling of available positioning resources.

A GPS-enabled cellular electronic device is operated in an indoor mode. An increase in strength of a cellular signal is detected at the GPS-enabled cellular electronic device. Responsive at least to the increase in cellular signal strength, the GPS-enabled cellular electronic device is transitioned to an outdoor testing mode. Detecting is carried out to determine whether movement of the GPS-enabled cellular electronic device occurs during the outdoor testing mode. If so, the GPS-enabled cellular electronic device is transitioned to an outdoor mode.

Embodiments of the present invention relate to a method and an apparatus for establishing an indoor location feature library. A sever selects, by using identification information of first user equipments (UEs) that is included in received first measurement data, multiple pieces of the first measurement data that have identification information of a same first UE; when the first UE is located indoors, obtaining location information of multiple of first access nodes according to feature attribute information of the multiple of the first access nodes; determining, according to the location information of the multiple of the first access nodes and the feature attribute information of the multiple of the first access nodes, indoor location information of the first UE; and establishing an indoor location feature library by using cell identification information and signal power values of multiple cells and indoor location information of the first UE.

A mobile computer may determine it is located in a vehicle or a conveyance based on a measured distance, satellite related positioning information, and a touch input.