Wireless Communications/regarding Mobile A-GPS


Will Mobile Station(MS) Assisted GPS calculate the location of the mobile regardless of emergency call?

Usually Mobile Station Assisted GPS calculates position of the mobile in network server in terms of latitude and longitude and Mobile Station Based calculates the position of the mobile in mobile itself. Both of these methods are used during emergency call. Is it possible to calculates the position of the mobile even if the call is not emergency call?  I request to clear my doubts at your earliest.

Thank you,

The terms "mobile station assisted / based"  refer to assisting in the acquisition of GPS synchronization by using local references on the mobile, as in non-fixed, GPS platform.     

If you are asking if the cellular phone network can locate a mobile phone without GPS assistance, the answer is yes.  In fact, the cellular system has to know where a cell phone is located to route a call to the proper cell tower near that phone.  

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Jerry Hinshaw


RF and microwave engineering, hardware and systems applications. Avionics, satellite, and terrestrial communications. Space communications and navigation, geo-location services via satellite and ground-based wireless systems. Systems integration of RF and wireless services. Electric Utility RF Smart Meter (SmartMeter) and Smart Grid wireless devices and networks. Utility Distribution Automation.


30 years experience in microwave and RF systems engineering, radio hardware design and development.

about 20 articles, 2 patents

BSEE MSEE Communications Systems

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