top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

LTE: What all information UE may request from network in protocol configuration option (PCO) as part of attach request ?

+2 votes
768 views
LTE: What all information UE may request from network in protocol configuration option (PCO) as part of attach request ?
posted Apr 28, 2018 by Vikram Singh

Share this question
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

+1 vote

Hi Vikram,

Earlier I had gone through attach request many times and I remember, UE mainly ask for following informations from the network :
- Primary DNS and Secondary DNS IP addresses
- Type of DNS IP address (IPv4/IPv6)
- Request for IP address allocation via NAS signalling message

Apart from above information, there are many other IEs in Protocol configuration option that are exchanged between UE and PGW.

answer Apr 28, 2018 by Harshita
Similar Questions
0 votes
LTE: When UE triggers integrity protected Attach request and when it sends as plain NAS message ?

From UE point of view, I want to know when UE triggers integrity protected Attach request and when it sends as plain message ?

+1 vote
LTE: How does UE selects attach type in attach request message ?

I have seen many wireshark logs and found mainly two types of attach request, one is known as "EPS attach" and another one is known as "Combined attached". I want to know, how does UE nas layer decide on "attach type" in attach request ?

+1 vote
VoLTE: Why UE is not sending PCO option in attach request?

Samsung UE is not sending PCO option during attach request and as a result P-CSCF discovery is not working?

Is there a specific NV item to be changed or any config change to be made? This is a commercial UE and OS is Android 5.0

...