APPARATUS AND METHOD OF POSITION DETERMINATION OF A FIRST MOBILE DEVICE USING INFORMATION FROM A SECOND MOBILE DEVICE

摘要

The present invention relates to a hybrid positioning system. The mobile device based on a first position determination system such as a satellite positioning system may determine a plurality of pseudoranges. If the number of pseudo-satellite (underdetermined) that is insufficient to move the location of the in-doubt unit of the distance, the mobile device share the location information with other devices. Other devices include the other mobile device. A first mobile device can determine the position based on the satellite pseudo distance of the number of undefined by determining pseudoranges for the other mobile device. In other embodiments, the number of satellite pseudo distance may be insufficient to perform the determined absolute position of the single mobile unit. In such an undefined situation, the mobile device may determine the common position of the group and may determine the relative positions of the members of the group.