Questions about radio resource allocation in 3G data network
wzg312 at yahoo.com.cn
Mon Nov 15 01:32:23 CST 2010
I have some specific question about radio resource allocation in 3G data
In the UMTS 3G data network, the smartphone has to acquire radio resource from
RNC before it can talk to any server on the Internet. Allocating radio resource
usually takes a few seconds (2+ seconds) to complete and thus causes delays to
the smartphone applications. This process will involve RRC connection setup and
radio bearer reconfiguration.
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?
Thanks a lot!
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