Patent ID: 8423047

Claim:
Non-transitory computer-readable media having computer-executable instructions embodied thereon that, when executed, enable a computing device to perform a method of facilitating a location-based service for use by a mobile-device, the method comprising: among a set of base stations that make up a portion of a wireless-telecommunications-network, wherein a location of each base station in the set is known, and wherein each base station has a signal-to-noise-and-interference ratio (SINR) above a predetermined minimum SINR such that each base station provides signal coverage to a first geographical area such that a mobile-device in the first geographical area is capable of communicating with the telecommunications-network via the each base station; for a first base station in the set, the first base station having a directional antenna, considering a.) an angle between an azimuth of the first base station and the first geographical area, and b.) a beamwidth of the directional antenna of the first base station, determining a joint probability that the SINR of the first base station is greater than a first threshold SINR above the predetermined minimum SINR and the SINRs from neighboring base stations within the set of base stations are less than a second threshold SINR above the predetermined minimum SINR such that the first base station provides a level of signal coverage to the first geographical area that would enable a first mobile-device in the first geographical area to communicate with the wireless-telecommunications-network; determining a density of possible locations that the first mobile-device may be within the first geographical area, the density based on a Bayesian probability conditioned on the first mobile device being covered by the first base station; approximating a position of the first mobile-device based on the density of possible locations; and facilitating the location-based service for use by the first mobile-device based on the position.