E-UTRAN

Evolution of Single Radio Voice Call Continuity (SRVCC)

Posted on 23. Dec, 2012 by agaur in Blog, aSRVCC, eSRVCC, GERAN, rSRVCC, SRVCC, vSRVCC, E-UTRAN, UTRAN, LTE
SRVCC

Along with LTE introduction, 3GPP also standardized Single Radio Voice Call Continuity (SRVCC) in Release 8 specifications to provide seamless continuity when an UE handovers from LTE coverage (E-UTRAN) to UMTS/GSM coverage (UTRAN/GERAN).

Network Sharing in LTE

Posted on 27. Jul, 2011 by agaur in Blog, E-UTRAN, 4G, eNB, LTE, MME

3GPP network sharing architecture allows different core network operators to connect to a shared radio access network.

X2 Application Protocol (X2AP)

in eNodeB, Specification, E-UTRAN, LTE, X2, X2AP

The X2AP protocol is used to handle the UE mobility within E-UTRAN and provides the following functions:

LTE UE Classes

Posted on 11. Jun, 2010 by jai in Blog, UE, E-UTRAN, GPRS, LTE, UMTS

UE class determines the speed at which data can be transferred in uplink and downlink directions. For GPRS & UMTS, most of us already are aware of it.

3GPP Release 11 Features and Study Items

Posted on 04. Jun, 2010 by jai in Blog, 3GPP, IMS, E-UTRAN, LTE

3GPP has already started work on Release 11. See objectives of features & study items from 3GPP Work Items below.

LTE Handovers - Intra E-UTRAN Handover

Posted on 10. Apr, 2010 by LteWorld in Blog, Handover, Intra, Intra E-UTRAN Handover, SGW, E-UTRAN, eNB, LTE, MME

Intra E-UTRAN Handover is used to hand over a UE from a source eNodeB to a target eNodeB using X2 when the MME is unchanged. In the scenario described here Serving GW is also unchanged.

Measurements in LTE E-UTRAN

Posted on 26. Mar, 2010 by LteWorld in Blog, ARFCN, Inter-frequency, Intra-frequency, Measurement, E-UTRAN, RRC, LTE

In LTE E-UTRAN measurements to be performed by a UE for mobility are classified as below

LTE UE positioning in E-UTRAN

Posted on 03. Jan, 2010 by LteWorld in Blog, E-UTRAN, LTE, LteWorld

UE Positioning function is required to provide the mechanisms to support or assist the calculation of the geographical position of a UE.

LTE RAN architecture aspects

Posted on 31. Dec, 2009 by LteWorld in Whitepaper, E-UTRAN, eHNB, LTE, LTE Advanced, MME, S1, X2

Presented by Dino Flore: RAN WG3 Chair, Qualcomm at a recent IMT-Advanced workshop, in Beijing, China

It has following contents

  • EPS architecture

LTE Advanced: Evolution of LTE

Posted on 14. Aug, 2009 by LteWorld in Blog, E-UTRAN, HSUPA, HSDPA, EPC, HSPA, LTE, LTE Advanced, LteWorld

August 14, 2009 | LTE standards are in matured state now with release 8 frozen. While LTE Advanced is still under works. Often the LTE standard is seen as 4G standard which is not true.

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