Method and system for providing enhanced location based information for wireless handsets

摘要

Methods, devices and systems for generating enhanced location information on or about a mobile device may include hybrid lateration and/or trilateration solutions in which the mobile device performs location determination calculations with or without the aid or support of network components or global positioning systems (GPS). Mobile devices may automatically form groups based on proximity and/or may be grouped together via a network server. Mobile devices in a group may share computed location information and/or information collected from internal sensors with other grouped mobile devices. Information shared between grouped mobile devices may be used to enhance the location information computed on each mobile device. For example, each mobile device may supplement and/or augment previously computed location information based on the received location information and/or relative positions of other mobile devices in the same group. Each mobile device may also utilize local sensors to further enhance their location information.

主权项

1. A method of providing a location based service in a mobile device, comprising:
collecting in processor of a mobile device location information from a plurality of mobile devices in a communication group; computing more precise location information for the mobile device based on the location information collected from the plurality of mobile devices, wherein computing the more precise location information includes using horizontal data to determine a position relative to the Earth's surface, using vertical data to determine a height of the position relative to sea level, and generating three-dimensional location and position information based on the determined position and height; and using the generated location and position information to provide the location based service.