| 摘要 |
Various techniques are provided which may be implemented in a mobile device to acquire a first positioning signal transmitted by a first transmitter of a first satellite in geostationary orbit, associate the first positioning signal with a coverage region to determine a rough position of the mobile device, and affect a positioning signal search strategy based, at least in part, on the rough position of the mobile device. The search strategy may identify at least one transmitter of at least one satellite in non-geostationary orbit that is estimated to be located in a position to transmit a second positioning signal within at least a portion of the coverage region, and which may be searched for by the mobile device. Such techniques may, for example, reduce a first time to a position fix in certain instances. |
