Table of Contents
2.1 IMSI Acquisition
3.1 Before Initial Attach
Now, we will look into EMM Case 1: Initial Attach by Unknown UE in "Eleven EMM Cases in an EMM Scenario". This case is when a user turns on his UE and attempts to attach to a network for the first time after subscribing to the LTE network/service. It was previously categorized as Attach Case 1 in Part 1 .
This document, Part 2, is organized as follows:
Chapter 2 explains the detailed procedures in EMM Case 1 (Initial Attach with IMSI), focusing on the functions required in the case, as described in Part 1.
Chapter 3 summaries what information is changed in each EPS entity after initial attach in Attach Case 1.
Very good document. I have a question.
In the attach accept message, the IP address allocated to UE is mandatory. However, there is no DNS related information. I checked spec, in the PCO (protocol configuration options) DNS server address can be included. However PCO is optional. So I just wonder, without DNS server in PCO, how could UE access the internet?
First i have to thank you ,that you shred a very valuable document with us regarding lte stuffs , but here i have one small suggestion , in point of initial attach part-1 &2 ,document maily focusing on core network rather on RRC messages (i.e., between UE and Enodeb).can you please add one more document(which highlits UE and Enodeb messages and transcations) related also,so that end-to-end connection would be clear for us.
Really appreciate the depth of the information provided. Can you please also add "Selection of MME" in the eNodeB (using static/DNS queried)?
Very Excellent！Thanks for your sharing! I have got lot of information about my concern topic.
Thanks for the detailed explanation. Appriciate to have a thought to share the knowledge like this...