top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration Why to Join

Facebook Login
Site Registration

Why in 4G the EPC session is considered as "always on", what does it mean and how is it different with 2G & 3G?

+1 vote
93 views
Why in 4G the EPC session is considered as "always on", what does it mean and how is it different with 2G & 3G?
posted May 26, 2017 by Hana Pamora

Share this question
Facebook Share Button Twitter Share Button Google+ Share Button LinkedIn Share Button Multiple Social Share Button

1 Answer

+1 vote

Though I don't know how 2G and 3G technology work but in LTE "always-on" means an IP addressed is allocated to the UE and it keeps that IP until it gets detached from the network. Even if there is no data flow for UE, it still retains the allocated IP address as well as PGW retains UE's IP address.

answer May 27, 2017 by Harshita
Thanks !
Following the answer, what happen if the UE is disconnected from the network gateway/PGW (no detach) then create session on the other PGW ?
Similar Questions
+1 vote

Now and days, people are talking about virtualization and its advantages. I want to know how virtualization can help for a telecom operator. Which components can be virtualized and how can an operator save money ?

+2 votes

Hi,
I am unable to get some correct explanations for CCR-Initial.
Will it be possible to send more than one CCR-I with same session Id and different rating groups?

For example,
1.CCR-I with Request-Type = 1,Request-Number = 0 and Rating-Group = 10
2.CCR-I with Request-Type = 1,Request-Number = 1 and Rating-Group = 20

I tried to find the answer in RFC-4006,but didn't get any clue, or may be I am missing any clause or paragraph from that.
It will be great help if any standard RFC or 3GPP TS says about that.

+4 votes

As you may already know, Virtual operator doesn't own RAN part and they create just the core part and as far as I know it works like roaming user.

I'm wondering if it is possible to build a LTE/SAE core network on MVNO and then connect to MNO which runs their service with prior generations (2G, 3G). is that possible? can you provide sample scenarios?

+2 votes

If a LTE UE Roams in a WCDMA area and originates a Create_PDP_Context_Request with PDP_TYPE as IPv4v6. If SGSN does not support this PDP type then what is expected behavior by SGSN?

Contact Us
+91 9880187415
sales@queryhome.net
support@queryhome.net
#280, 3rd floor, 5th Main
6th Sector, HSR Layout
Bangalore-560102
Karnataka INDIA.
QUERY HOME
...