Amarisoft

UEsim LTE Multi UE

 

This tutorial is to show how to simulate multiple UEs with a single UEsim. For the simplicity, I am simulating only 5 UEs but you can simulate maximum of 500 or 1000 UEs with single Amari UEsim

NOTE : Exact max number of active UE vary depending on product type, radio access technology and license type as shown in the following tables.

 

UESim LTE MultiUE MaxNoUE Simbox 01

For further details of the specification of AMARI UE Simbox Series, refer to this product datasheet.

 

UESim LTE MultiUE MaxNoUE SimboxE 01

For further details of the specification of AMARI UE SimboxE Series, refer to this product datasheet.

 

UESim LTE MultiUE MaxNoUE SimboxE 01

For further details of the specification of AMARI UE Simbox MBS Series, refer to this product datasheet.

 

 

Table of Contents

 

 

Test Setup

 

Test setup for this tutorial is as shown below.  

TestSetup Callbox UEsim 1sdr 01

 

 

 

Key Configuration Parameters

 

Followings are important configuration parameters for this tutorial. You may click on the items for the descriptions from Amarisoft documents.

 

 

 

Configuration

 

I used the ue.default-multi-ue.cfg which is copied and modified from ue.default.cfg (LTE default configuration).

UEsim LTE MultiUE Config 01

I used the enb.default.cfg (LTE default configuration).

UEsim LTE MultiUE Config 02

I used the mme-ims-multi-ue.cfg  which is copied and modeified from mme-ims.cfg

UEsim LTE MultiUE Config 03

In the mme-ims-multi-ue.cfg, I changed the configuration so that ue_db-ims-multi-ue.cfg is used on Callbox.

UEsim LTE MultiUE Config 04

In this tutorial, following SIM information will be used within ue_db-ims-multi-ue.cfg. Make it sure to configure the same parameters on UE side as well.

UEsim LTE MultiUE Config 05

In ue.default-multi-ue.cfg on UEsim, Make it sure that imsi and K value in this file matches the value on enb side shown in previous slide

UEsim LTE MultiUE Config 06

Following is the configuration in enb.default.cfg on Callbox

UEsim LTE MultiUE Config 07

This is optional. In enb.default.cfg, I made a small change as shown below.

UEsim LTE MultiUE Config 09

Following is the configuration in ue.default-multi-ue.cfg on UE sim

UEsim LTE MultiUE Config 08

 

 

Perform the test

 

Start trace logging on Callbox

UEsim LTE MultiUE Run 01

Power on UE on UE sim

UEsim LTE MultiUE Run 02

Then you see following traces on Callbox and confirm all the UEs get attached

UEsim LTE MultiUE Run 03

You can check the list of all the UE status with 'ue' command on UE sim

UEsim LTE MultiUE Run 04

You can check the list of all the UE status with 'ue' command on (enb) on Callbox

UEsim LTE MultiUE Run 05

You can check the list of all the UE connected to MME with 'ue' command on (mme) on Callbox

UEsim LTE MultiUE Run 06

You may try ping from Callbox to all of the UEs

UEsim LTE MultiUE Run 07

 

 

Log Analysis

Sample Log

I would not go through all the log since this would just be the repetition of basic LTE attach procedure. The only thing that I want to highlight is the Attach Request from UE sim log showing different IMSI values for each UE as shown below.

UEsim LTE MultiUE Log 01