Reference oscillator management for wireless devices having position determination functionality

A wireless device having position determination functionality which manages a reference oscillator using a plurality of technologies, comprising:

• a wireless communications system;
• a satellite positioning system (SPS) receiver;
• a reference oscillator connected to the wireless communications system and SPS receiver;
• and
• a mobile controller connected to the reference oscillator, SPS, and wireless communications system;
• and
• a memory connected to the mobile controller, wherein the memory stores a reference oscillator parameter table and instructions causing the mobile controller to:
• select reference oscillator parameters associated with a lowest reference oscillator error, wherein the selection is determined within the wireless device based upon processing a first frequency bias parameter determined based on a first wireless technology and a second frequency bias parameter determined based on a second wireless technology,
• increment a confidence counter indicative of a confidence in the selected reference oscillator parameters at least partially in response to selecting the reference oscillator parameters;
• acquire a satellite based upon the selected reference oscillator parameters,
• acquire a satellite-based position fix,
• determine the quality of the satellite-based position fix, and
• update the reference parameters in response to determining the quality of the satellite-based position fix.

A wireless device having position determination functionality which manages a reference oscillator using a plurality of technologies, comprising:

• means for selecting reference oscillator parameters associated with a lowest reference oscillator error, wherein the selection is determined within the wireless device based upon processing a first frequency bias parameter determined based on a first wireless technology and a second frequency bias parameter determined based on a second wireless technology;
• means for incrementing a confidence counter indicative of a confidence in the selected reference oscillator parameters at least partially in response to selecting the reference oscillator parameters;
• means for acquiring a satellite based upon the selected reference oscillator parameters;
• means for acquiring a satellite-based position fix;
• means for determining the quality of the satellite-based position fix;
• and
• means for updating the reference oscillator parameters in response to determining the quality of the satellite-based position fix.

A non-transitory computer readable medium comprising instructions executable by a processor to:

• select reference oscillator parameters associated with a lowest reference oscillator error, wherein the selection is determined within the wireless device based upon processing a first frequency bias parameter determined based on a first wireless technology and a second frequency bias parameter determined based on a second wireless technology;
• increment a confidence counter indicative of a confidence in the selected reference oscillator parameters at least partially in response to selecting the reference oscillator parameters;
• acquire process an acquired satellite based upon the selected reference oscillator parameters;
• acquire a satellite-based position fix;
• determine the quality of the satellite-based position fix;
• and
• update the reference oscillator parameters in response to determining the quality of the satellite-based position fix.