[kotaKat]

Also to mention... A-GPS is extremely crucial to the underpinnings of the e911 system. Having rapid fixes means quicker positioning data being sent over the wire to the 911 center.

[joecool1029]

It helps, it's not extremely crucial. There are other methods that don't require the handset's cooperation:

- https://www.mpirical.com/glossary/lmu-location-measurement-u...

- https://www.etsi.org/deliver/etsi_ts/136100_136199/136111/11...

[stingrae]

all these methods aren't super reliable. The combination of all of them is required for what people have come to expect from GPS.

[stingrae]

Also people want GPS to work seamlessly in locations where GPS is unreliable. Dense urban canyons, inside big buildings and a myriad of other locations. AGPS is absolutely necessary for this.

Without this, people will wonder why the phone's "GPS" is bad (it takes a long time to get position and it is inaccurate in many cases).