[132108] in North American Network Operators' Group
Questions about radio resource allocation in 3G data network
daemon@ATHENA.MIT.EDU (=?iso-8859-1?Q?=B9=E2=B9=E2?=)
Mon Nov 15 02:32:34 2010
Date: Mon, 15 Nov 2010 15:32:23 +0800 (CST)
From: =?iso-8859-1?Q?=B9=E2=B9=E2?= <wzg312@yahoo.com.cn>
To: nanog@nanog.org
Reply-To: =?iso-8859-1?Q?=B9=E2=B9=E2?= <wzg312@hotmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Hi everyone,=0A=0AI have some specific question about radio resource alloca=
tion in 3G data =0Anetwork. =0A=0A=0A=0AIn the UMTS 3G data network, the s=
martphone has to acquire radio resource from =0ARNC before it can talk to =
any server on the Internet. Allocating radio resource =0Ausually takes a f=
ew seconds (2+ seconds) to complete and thus causes delays to =0Athe smart=
phone applications. This process will involve RRC connection setup and =0A=
radio bearer reconfiguration. =0A=0A=0A=0AFrom my observation, the delay =
caused by the radio resource allocation varies a =0Alot over time and seem=
s it is not only caused by the radio access network. So I =0Awas wondering=
what network devices are involved in the radio resource =0Aallocation bes=
ides the phone, base-station and RNC? And what are the factors =0Athat can=
potentially affect the observed delay?=0A=0AThanks a lot!=0A=0A-Gary=0A=0A=
=0A=0A
