DETERMINING CLOCK MODELS

摘要

Examples disclosed herein relate to methods and apparatuses for observing signals transmitted by one or more transmitters in an asynchronous communication network and applying a time reference to generate a clock model. In one embodiment, parameters representing the clock model may then be forwarded to other mobile devices to assist in positioning operations.

主权项

1. A method for modeling timing of signals, comprising:
receiving from each mobile device of one or more mobile devices fine time measurements determined based, at least in part, on a first time reference in one or more first signals received at the each mobile device from an asynchronous network and a second time reference; computing a clock model descriptive of timing of at least one signal transmitted from a transmitter in the asynchronous network based, at least in part, on the fine time measurements,
wherein the computed clock model includes at least one of a clock drift parameter, a clock time uncertainty parameter or a clock frequency uncertainty parameter; and transmitting parameters representative of the computed clock model to one or more receiving mobile devices.