|Verizon's LTE in Detail|
|Written by Dave Burstein|
|Friday, 12 November 2010 03:14|
The 100M pop LTE network about to be launched by Verizon will be by far the largest in the world and an enormous achievement. Chris Neisinger of Verizon at Carl Ford's 4GWE conference provided some details.Video
"The mobile broadband is always slightly behind the fixed. ... Our 4G is 12 megabits download, 2-5 upload. These are conservative numbers. ... 4G has much lower latency. Reducing the guardband has allowed us to reduce latency. Connectivity anywhere, anytime, ubiquitous. ...We are growing rapidly to 285M pops over the next 2-3 years. ,,, We plan. We forecast our network, We always try to keep ahead of growth and provide it before our customers experience congestion. ... We can't install 9 antennas on each tower. ...We will add AWS capacity It will always pay off to plan ahead.
We had to go beyond T-1. We started out thinking it would be DS3 [45 megabit] but discovered it would be Ethernet. We made our 2G and 3G networks completely IP-capable. We have a flat "fiber to the cell" architecture and we've been working on getting fiber to all our cell sites. There's a little bit of microwave in the network for places we absolutely can't get fiber to. We pushed to as much of an all-fiber network as we could. ... We have a cell site router that we connect to the 50 or 100 megabit Ethernet service we're getting mostly from our LECs and cable partners. We can scale this to 200 or 300 megabits provisionable from our management console. We've thrown in IP cameras for surveillance.
How do we configure the hundreds of millions of devices when IPv4 addresses are running out? We went to an IPv6 architecture,
with IPv4 available on demand with a dual stack. Comcast is doing similar. Our LTE network is IPv6 and has a smooth handoff to our 3G network from the application point of view, although the speeds are lower. Eventually, we'll migrate off the 3G network.
We've integrated our IMS architecture into our LTE network, which is available as an API to our Verizon developers and possibly other networks. We virtualize applications.
I'm not smart enough to come up with the next great app will be but I know what the network has to be.
The future is wireless broadband.
The LTE network absolutely enables real time voice. We have the ability to do that. We have a terrific 1x voice network that's not capacity constrained. It is not being displaced.
Energy companies and other "Internet of things" applications are looking for ubiquity of coverage. The first thing we have to do is provide ubiquity.
We are looking at high-quality voice as something our subscribers really do want to see.
Unfettered access to huge amounts of bandwidth does cost a lot of money. (Editor's note. He's completely correct, including the "huge" limit. There's nothing wrong with caps and/pr charging for capacity as long as it's related to the actual costs. 2 gigabyte caps, like AT&T, are an abusive attempt to prevent competitive video.)
Open is the way of the future and innovation is there."