Abstract:
Examples disclosed herein may relate to partitioning identity and/or position information for a plurality of wireless transmitters positioned within a geographical region into a plurality of sub-partitions.
Abstract:
Method, apparatus and computer program product for monitoring wireless wide area network almanac integrity in a wireless wide area network are disclosed. In one embodiment, the method comprises receiving crowdsourcing data from a plurality of mobile devices, determining a change to a wireless wide area network almanac using the crowdsourcing data, and updating a database in accordance with the change to the wireless wide area network almanac.
Abstract:
Method, apparatus and computer program product for monitoring wireless wide area network almanac integrity in a wireless wide area network are disclosed. In one embodiment, the method comprises receiving crowdsourcing data from a plurality of mobile devices, determining a change to a wireless wide area network almanac using the crowdsourcing data, and updating a database in accordance with the change to the wireless wide area network almanac.
Abstract:
Techniques are provided which may be implemented in various methods, apparatuses, and/or articles of manufacture for use by a device that is operable in a plurality of modes, including “higher power mode” and a “lower power mode”. In an example implementation, a device that is operable in a plurality of selectable power modes may measure a signal strength value for a signal acquired from a ground-based transmitter, and transition operation to a lower power mode, wherein at least a portion of a receiver used to acquire the signal is disabled, based, at least in part, on: (a) a profile test indicating that the device is within a characterized environment, wherein the profile test is satisfied, at least in part, by the signal strength value; or (b) an indication based, at least in part, on the signal strength value, that the device is in a constrained motion state; or (c) both (a) and (b).
Abstract:
Examples disclosed herein may relate to partitioning identity and/or position information for a plurality of wireless transmitters positioned within a geographical region into a plurality of sub-partitions.
Abstract:
Systems, apparatus and methods in a mobile device for saving power by powering down all transceivers not carry traffic are presented. The traffic may be voice and/or data traffic. A mobile device may select single transceiver to carry voice traffic and the same or different transceiver to carry data traffic. A mobile device first determines its position (e.g., a coarse position estimate) then consults a database or map to determine which networks are theoretically available. The mobile device executes a rule against the theoretically available networks to select the single network, then enables the transceiver for the one network to determine if the network is actually available for use. If the database inaccurately states a network is available from a current position but the transceiver shows that the network is actually not actually available, a next network from the database or map and corresponding transceiver are selected.
Abstract:
Methods and systems are presented for providing a combined barometric value. In some embodiments, the method includes obtaining, at the serving fixed local transceiver, barometric values of a plurality of client fixed local transceivers, and determining a combined barometric correction value. The method further includes initiating a barometric correction value of the serving fixed local transceiver to the combined barometric correction value, and sending an indication of the barometric correction value to the plurality of client fixed local transceivers. The method further includes receiving a request for the serving fixed local transceiver barometric correction value from a target client fixed local transceiver, and sending the barometric correction value from the serving fixed local transceiver to the target client fixed local transceiver.
Abstract:
Examples disclosed herein may relate to transmitting almanac information associated with a subset of wireless transmitters to a mobile station. The subset of wireless transmitters may be determined, at least in part, by determining expected contributions of one or more wireless transmitters to a future navigation operation for the mobile station.
Abstract:
The subject matter disclosed herein relates to determining whether a reported position of a wireless transmitter is sufficiently accurate in accordance with an accuracy metric based at least in part on a calculated range between an estimated position of a mobile station and the reported position and also based at least in part on one or more measurements taken from one or more signals transmitted by the wireless transmitter.
Abstract:
Method, apparatus and computer program product for monitoring wireless wide area network almanac integrity in a wireless wide area network are disclosed. In one embodiment, the method comprises receiving crowdsourcing data from a plurality of mobile devices, determining a change to a wireless wide area network almanac using the crowdsourcing data, and updating a database in accordance with the change to the wireless wide area network almanac.