Abstract: The present disclosure provides methods and apparatus for adaptively performing position determination in response to environmental profile determination. Aspects of the disclosure provide an apparatus including a sensor, an environmental profile determination module, and a profile based position provider. The sensor is configured to generate data indicative of motions of the apparatus. The environmental profile determination module is configured to receive the data indicative of the motions of the apparatus, and detect an environmental profile from a plurality of environmental profiles for the apparatus based on the data. The profile based position provider includes a plurality of configurations associated with the plurality of environmental profiles. The profile based position provider is configured in one of the configurations associated with the environmental profile, and is configured to select a positioning source to determine a location of the apparatus based on the configuration.

Abstract: A mobile communications device and a method for reducing energy usage in a mobile communications device are provided. An example mobile communications device includes an application processor. The application processor includes a first central processing unit (CPU), where the first CPU consumes a relatively high amount of power when operating in an active mode. The mobile communications device includes a microcontroller coupled to the application processor. The microcontroller includes a sensor subsystem configured to process, using a second CPU, first data received from one or more sensors. The second CPU consumes a relatively low amount of power when operating in an active mode. The microcontroller includes a location subsystem configured to receive satellite signals and process, using the second CPU, second data that is based on the received satellite signals. The first CPU operates in a sleep mode during the processing of the first and second data.

Abstract: The present disclosure provides methods and apparatus for adaptively performing position determination in response to environmental profile determination. Aspects of the disclosure provide an apparatus including a sensor, an environmental profile determination module, and a profile based position provider. The sensor is configured to generate data indicative of motions of the apparatus. The environmental profile determination module is configured to receive the data indicative of the motions of the apparatus, and detect an environmental profile from a plurality of environmental profiles for the apparatus based on the data. The profile based position provider includes a plurality of configurations associated with the plurality of environmental profiles. The profile based position provider is configured in one of the configurations associated with the environmental profile, and is configured to select a positioning source to determine a location of the apparatus based on the configuration.