Interesting comment from a Danish WiMAX operator I heard at an event yesterday - they actually decide on application throttling / bandwidth management based on individual users' radio channel conditions.
The logic is that if you're in a strong signal area, the modulation is such that you need a smaller % of total base station capacity, compared to a user at the edge of the cell, trying to pull down the same amount of bandwidth.
In other words, they're basing policy decisions on actual capacity & resource usage, not using data transfer rates as a proxy.
Presumably, this needs some sort of realtime API into the air interface part of the network - exactly the sort of thing I had in mind a couple of weeks ago when I asked the LTE folk about programmable networks.
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