|
Written by Dave Burstein
|
|
Saturday, 24 September 2011 12:01 |
2012-2014 LTE
- Speed: Decent 5-15 megabits average, 30-100 megabits peak
- Capacity: Lousy, only a few hours of TV/month. 2 gig caps would disappear absent market power, but it’s hard to offer caps above about 15 gigabytes
- Design: Mostly towers, with about 20% WiFi and small cells
- 20 MHz maximum
- Users: 10’s of millions, not hundreds of millions, with 3G still dominant
- Policy goals: get it built, with the right price and capacity
2013-2020 LTE Advanced 4G can be 10 times better. (Shared gigabit)
-
The technology will come quickly, but only in a few regions will it be deployed
-
Speed: Better 10-50 megabits average is possible, 1 gigabit shared peak
-
Capacity: Better 25-75 gigabyte caps at an under $50 consumer price practical, although won’t be available without strong competition or regulation.
-
Design: Towers will go to 8 MIMO small antennae, doubling or tripling throughput100 MHz, where available.
-
Massive policy changes required most places to make contiguous large blocks available
-
30-70% WiFi, femto and small cells “bottoms-up”
-
“HetNets” Heterogeneous networks. For better capacity, not peak speeds
-
Interference smart, self-organizing networks (SON). Mesh features
-
Users: it will be 2015-2018 before LTE dominates in most markets
-
Policy goals: Total spectrum policy revamp for more sharing, use it or lose it, and obligatory network design for efficiency., including number of towers and small cells/offload
-
Where weak competition means deployment delays or high prices, more effective strong policy.
2015-2025 5G, probably with five times LTE Advanced capacity
Early discussions of how to use better coding, higher MIMO, cognitive radio and other interference reduction measures, meshes etc. Think of a small cell on every street light or similar.
|