Recent posts under tag umts

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The capacity to think is called the

posted Sep 27, 2017 by Ganesh Choudhary

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How UE latch to the UTRAN in CSFB?

posted Aug 9, 2017 by Jaganathan

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Handover process from E-UTRAN to UTRAN or GERAN?

posted Jun 28, 2017 by anonymous

+2 votes

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What is PDP (packet data protocol) and what is its role?

posted Jun 28, 2017 by Dani Tene

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What is Access point name and what it does in LTE/UMTS/GPRS network?

posted Jun 28, 2017 by Dani Tene

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What happens after you turn on mobile data and you access/google something?

posted Jun 27, 2017 by Dani Tene

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In the charging system in mobile networks, What exactly are these 2 terms mean ( Tarrif & Rating Group) ?

posted Apr 7, 2017 by Ahmed Magdy

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How does the GGSN know the IMSI of the mobile station in case it receives downlink pdp pdu (packet)?

posted Apr 5, 2017 by Ahmed Magdy

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Interworking of UMTS/GSM with VoLTE?

posted Apr 1, 2017 by Anand Yadav

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Airplane mode in LTE/UMTS/GSM ?

posted Mar 21, 2017 by anonymous

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How to calculate the capacity of a GSM base station, UMTS base station and LTE eNodeB?

posted Feb 22, 2017 by anonymous

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What type of handover is performed in HSPDA soft or hard and why?

posted Feb 22, 2017 by anonymous

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csfb to wcdma when no PSHO supported.

posted Feb 8, 2017 by Hari Oum

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difference between scheduling resource concepts and algorithms in LTE and UMTS HSPA+?

posted Feb 4, 2017 by anonymous

+3 votes

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About UE support UMTS

posted Jan 20, 2017 by Jim Tan

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In LTE-WCDMA handover, should the new PDP context be activated again or the old one modified/updated?

posted Sep 28, 2016 by anonymous

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Cell change order scenario in UMTS/ LTE ?

posted Aug 2, 2016 by anonymous

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What are the protocols available on Node B and RNC side in UMTS protocol stack?

posted Aug 2, 2016 by Arijit Chakraborty

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LTE : How does MME keep mapping of "TAI list" that is assigned to UE against the "LAI" assigned to UE ?

posted Jan 26, 2016 by Harshita

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Why do we need a timing advance in LTE and GSM networks but not in UMTS?

posted Dec 7, 2015 by anonymous

+1 vote

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How I can calculate sinr UMTS matlab ?

posted Nov 13, 2015 by Somsom

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LTE : Has anyone tested Circuit Switch Fallback (CSFB) in the lab or in the field ?

posted Oct 16, 2015 by Harshita

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How to configure FTP server having Wireless i.e. LTE or 3G connection?

posted Sep 30, 2015 by anonymous

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Whats the difference between GSM and UMTS NAS layer?

posted Sep 30, 2015 by anonymous

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What is difference between PS data and HSDPA/HSUPA data in LTE and 3G?

posted Sep 16, 2015 by Gnanendra Reddy

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What is the difference between APN and PDN in LTE/UMTS?

posted Aug 7, 2015 by anonymous

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Controlling the Proxy server via GTP-C

posted Jun 29, 2015 by Michael Semama

+3 votes

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What is the difference between 3G to LTE redirection and 3G to LTE handover.

posted Jun 2, 2015 by anonymous

+1 vote

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Can the same terminal open multiple PDP Context? Is it normal?

posted Jun 1, 2015 by anonymous

+1 vote

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When a LTE user moves to UMTS network through handover, Is there any change occur in ongoing sessions ?

posted May 9, 2015 by Harshita

+3 votes

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Which RAT is preferred to camp at power ON for multi-mode UE?

posted Apr 21, 2015 by anonymous

+3 votes

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When the VLR/SGSN/MME "decides" to perform the MS Authentication procedure?

posted Apr 12, 2015 by Michael Semama

+3 votes

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Why UL speed is always lesser than DL speed?

posted Apr 10, 2015 by Chirag Gangdev

+2 votes

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In 3G Measurement Control Configuration Info is sent in Sib11/12. In which SIB this info is sent in LTE?

posted Apr 10, 2015 by Hemanth

+3 votes

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At power on,how&when does UE decides/gets to know which is the Preferred RAT to camp onto? Is this info stored in UE?

posted Apr 9, 2015 by Hemanth

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What does it mean when S-RNTI has changed but SRNC-id did not change?

posted Apr 3, 2015 by anonymous

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Is there anyone or company still working on the broadcasting (MBMS) over LTE or 3G now?

posted Mar 14, 2015 by anonymous

+2 votes

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Possible cause for Activation Rejected By GGSN response for Activate PDP?

posted Mar 4, 2015 by Kapil Kapoor

+3 votes

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UMTS: Why in UL direction 2SF2 + 2SF4 is used?

posted Feb 26, 2015 by anonymous

+1 vote

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interconnection between core network and radio access?

posted Feb 25, 2015 by anonymous

+2 votes

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What is the difference between C-RNTI and U-RNTI in context of UMTS and LTE?

posted Feb 24, 2015 by anonymous

+2 votes

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Which parameters need to be set for IRAT reselection - LTE to UMTS?

posted Feb 19, 2015 by anonymous

+2 votes

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UMTS: MO call while his handset doing update location

posted Jan 28, 2015 by anonymous

+2 votes

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Channel mapping used in UMTS

posted Jan 21, 2015 by Aarti Jain

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Was Airtel's attempt to charge differently for VoIP calls fair?

posted Jan 7, 2015 by Salil Agrawal

+2 votes

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Could any one please explain in detail about timing advance in UMTS?

posted Dec 26, 2014 by Shivaraj Kenche

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HSPA shares the UMTS 5 Mhz band but how can these two technology share it?

posted Dec 1, 2014 by anonymous

+1 vote

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What is the meaning of multiple PDN connectivity in LTE and UMTS?

posted Nov 16, 2014 by anonymous

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PDP Context Modification and Deactivation Procedure in UMTS/GPRs

posted Sep 24, 2014 by anonymous

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PDP Context Activation Procedure in GPRS/UMTS

posted Sep 23, 2014 by anonymous