Localization of a wireless user equipment (UE) device based on out-of-hearing band audio signatures for ranging

摘要

A scheme for localizing a wireless user equipment (UE) device's relative position with respect to a spatial configuration based on audio signatures received via a multi-channel audio system, e.g., an audio system of a vehicle or home entertainment system. The wireless UE device is configured to capture the audio signatures received from a head unit that are placed in an out-of-hearing band of a captured signal. The wireless UE device includes a persistent memory module having program instructions for processing the captured signal including the out-of-band signatures, which may comprise either channel-specific pseudo-random noise (PN) sequences or single-frequency tones, in order to compute time delays or power levels associated with the speaker channels. A localization module is configured to estimate the wireless UE device's relative position based on the time delays or power levels.

主权项

1. A method operating at a wireless user equipment (UE) device, said method comprising:
receiving a plurality of audio signatures from a head unit via an audio system having a plurality of speaker channels, wherein said plurality of audio signatures are in an out-of-hearing frequency band of a signal recorded by a microphone of the wireless UE device; receiving information identifying a model or a type of a vehicle from said head unit via at least one of said plurality of speaker channels; determining a particular spatial configuration of an interior of the vehicle based on correlating the model or the type to a mapping between models or types and spatial configurations; and processing said plurality of audio signatures, by a processor of said wireless UE device configured to operate in association with one or more subsystems of said wireless UE device, for determining said wireless UE device's location relative to said particular spatial configuration associated with the interior of the vehicle.