Abstract: Techniques are disclosed for improving performance of a touchscreen device. In an aspect, the touchscreen device receives a selection of an application or function based on a user touching a portion of a touchscreen display of the touchscreen device that includes an icon representing the application or function, collects biometric data of the user based on the user touching the portion of the touchscreen display, and determines whether the user is authorized to access the application or function based on the biometric data. In an aspect, the touchscreen device detects that a portion of the touchscreen display is unresponsive to user touch input, and in response to the detection, moves at least one icon displayed on the unresponsive portion of the touchscreen display to a portion of the touchscreen display that is responsive to user touch input.

Abstract: Techniques are provided to initiate signal transmissions for possible opportunistic reception by a mobile device, and/or to initiate opportunistic reception of signal transmissions for use in mobile device position location estimation. For example, a mobile device may use assistance data to identify a first signal to be transmitted over a first frequency band and a second signal to be transmitted over a second frequency band during a specific period of time. At least a portion of the second frequency band may be outside of the first frequency band. The mobile device subsequently attempts to opportunistically receive at least the first signal and the second signal via a receiver tuned to a reception frequency band that encompasses at least the first frequency band and the second frequency band. The mobile device may then process the opportunistically received signals to obtain measurements corresponding to at least the first and second signals.