Sudo /usr/lib/uhd/utils/uhd_images_downloader.py Download our modificationsĭownload: patches extract the data: tar xf opencells-mods-20170710.tgz Download & Compile the eNB on 17.04 git clone sudo will not ask anymore for a passwordĮttus has not yet released their driver for Ubuntu 17.04, we take it from source: sudo apt-get install libboost-all-dev libusb-1.0-0-dev python-mako doxygen python-docutils python-requests cmake build-essential.xxxxxx ALL=(ALL) NOPASSWD: ALL (xxxxxx is your login name).if you are upset with sudo password, add this line in /etc/sudoers.Git config -global user.email Add the OAI repository as authorized remote systemĮcho -n | openssl s_client -showcerts -connect :443 2>/dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | sudo tee -a /etc/ssl/certs/ca-certificates.crt install git and configure your identification in git:.do: apt update apt upgrade until the machine is up-to-date.install Ubuntu: choose to install Third party SW, and to upgrade all packages while installing.Download Ubuntu 17.04 64 bits version iso file.Prepare a machine: a 4 actual cores, no hyper-threading.Īll other configuration in OAI Wiki (C1 states, …) describes is about useless.Several simplifications and precisions to make easier and reliable installations.Useless link between OAI and the Ubuntu/Linux hostname removed.GTP UDP ports are in conflict for eNB and SGW.We already pushed some enhancements in OAI, nevertheless some more are required.OAI EPC require kernel >= 4.7, so we have to use Ubuntu 17.04.Known limitations fixed in the hereafter description We also explain how to simplify, fix existing issues, to make a single computer as a full LTE network: EPC+eNB. The description uses a USRP B210 board, a Lime SDR page is provided separately. We use EPC after a major contribution in May 2017: a lot of code has been modified, all directories names were changes, configuration parameters names/values changed. This document explains how to install and configure OAI EPC+eNB on one single Ubuntu 17.04 64 bits machine connected with a regular UE (a Huawei E3272), routing the UE traffic to internet. Full re-test, from disk install of Ubuntu 17.04 to UE throughput measurement.improved code pieces formating in HTML, added automatic git patch.And then Attach accept.(non modified ones since the June version were missing) If UE sens the Initial Context Setup Response. To create a session success response, MME sends an Initial Context setup request with the GTP-U plane address of SGW along with other parameters. MME sends a create session request to the SGW over the S11 interface. MME sends the authentication request to the UE. In turn, MME starts the MAP send-authentication-info procedure with the HSS/AuC for requesting authentication vectors.Īfter successful authentication, MME does the Update Location procedures for subscriber information. When UE switches on, it sends an Initial UE message with Attach request for PDN connectivity to the MME. Here we will describe the initial attach procedure to understand the basic functionality of the MME in the LTE network. Till now we have described key Interfaces of MME. The T6a interface is a diameter protocol interface with the SCEF for the Non-IP data delivery in the IoT network. The HSS may be co-located with the AUC for the 4G authentication. It is the node that holds the subscription data for a subscriber. The eNodeB sends user data packets to the SGW using the GTP-U data plane protocol. During attach and other activities via UE, SGW does signaling with the PGW in-home network over the s5/S8 interface. The S11 interface is a GTP-C-V2 (Version 2) based Interface with the SGW.
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