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what is UMTS RRC Connection

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nitinpuri

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what are the special priveleges a UE ha in connected mode than in an Idle mode?
 

There are two types connected mode in UMTS.

1. CS Connected
2. PS Connected

When UE is doing any activity (eg. CS call, PS Call, SMS, Video telephony, etc) it should be in RRC Connected mode.

In idle mode UE can do reselection, receive paging, etc.

If you need more details about RRC states use 3gpp specification # 25.331


3gLteInfo: Free 3G, UMTS, LTE, HSDPA, HSUPA, GSM, GPRS Tutorials
 

I know about the RRC States but my wuery is what all setup goes on... what resources are allocated to the UE or Node B by RNC when UE is in connected mode. So how does idle mode differs from Cell_PCH state?
What is the significance of being connected?
 

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