Questions about radio resource allocation in 3G data network

Mikael Abrahamsson swmike at
Mon Nov 15 01:45:56 CST 2010

On Mon, 15 Nov 2010, ¹â¹â wrote:

> From my observation, the delay caused by the radio resource allocation 
> varies a lot over time and seems it is not only caused by the radio 
> access network. So I was wondering what network devices are involved in 
> the radio resource allocation besides the phone, base-station and RNC? 
> And what are the factors that can potentially affect the observed delay?

If the phone is in idle, I believe the GTP tunnel changes status as well 
so also SGSN/GGSN is involved.

I'd imagine the transport network between all the devices can affect time 
as 3GPP likes to reserve resources everywhere, so it might be that a lot 
of transport network devices could potentially be included as well.

Mikael Abrahamsson    email: swmike at

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