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bchallenor | 8 years ago

I make it 4ms [1], not 40ms.

[1] http://www.wolframalpha.com/input/?i=800mi+%2F+speed+of+ligh...

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sho|8 years ago

* facepalm

Too late to edit. Misplaced the decimal point. Should have noticed that if 22k is 120, 800 can't possibly be 40. Duh.

Still, the actual latency is going to be very dependent on the distance to the base station. If it's nearby then shit, yeah, that will be within 20ms of 5G. Point conceded @jsjohnst.

jsjohnst|8 years ago

It doesn’t make sense to bounce a signal over North America / Europe / etc all around on the mesh. The best course is to send it to the ground almost immediately (aka <2-3x max) for those areas as otherwise you’re wasting bandwidth. But over the Pacific Ocean it makes complete sense as adding a ground station in the middle of the ocean doesn’t make sense and even if you did, you still have latency to nearest server farm.

So yes, my point still stands for the majority use case.

Also, to be clear, I was making following claims:

1) bandwidth on par with initial 5G deployments (aka up to 1gb/sec offering)

2) Latency on par or better than existing LTE networks.

jsjohnst|8 years ago

It’ll never be 4ms in the best case though. Both fiber and radio signals are a lot less than 100% of speed of light.

(Know you likely know this, but not everyone does)