Native Deployment of ICN in LTE, 4G Mobile Networks
draft-irtf-icnrg-icn-lte-4g-02

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ICN Research Group                                        Prakash Suthar
Internet-Draft                                              Milan Stolic
Intended status: Informational                          Anil Jangam, Ed.
Expires: April 25, 2019                                    Cisco Systems
                                                            Dirk Trossen
                                                       InterDigital Inc.
                                                   Ravishankar Ravindran
                                                     Huawei Technologies
                                                        October 22, 2018

          Native Deployment of ICN in LTE, 4G Mobile Networks
                     draft-irtf-icnrg-icn-lte-4g-02

Abstract

   LTE, 4G mobile networks use IP based transport for control plane to
   establish the data session and user plane for actual data delivery.
   In existing architecture, IP transport used in user plane is not
   optimized for data transport, which leads to an inefficient data
   delivery.  IP unicast routing from server to clients is used for
   delivery of multimedia content to User Equipment (UE), where each
   user gets a separate stream.  From bandwidth and routing perspective
   this approach is inefficient.  Multicast and broadcast technologies
   have emerged recently for mobile networks, but their deployments are
   very limited or at an experimental stage due to complex architecture
   and radio spectrum issues.  ICN is a rapidly emerging technology with
   built-in features for efficient multimedia data delivery, however
   majority of the work is focused on fixed networks.  The main focus of
   this draft is on native deployment of ICN in cellular mobile networks
   by using ICN in 3GPP protocol stack.  ICN has an inherent capability
   for multicast, anchorless mobility, security and it is optimized for
   data delivery using local caching at the edge.  The proposed
   approaches in this draft allow ICN to be enabled natively over the
   current LTE stack comprising of PDCP/RLC/MAC/PHY or in a dual stack
   mode (along with IP) help optimize the mobile networks by leveraging
   the inherent benefits of ICN.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

Prakash Suthar, et al.   Expires April 25, 2019                 [Page 1]
Internet-Draft       draft-irtf-icnrg-icn-lte-4g-02         October 2018

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
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   This Internet-Draft will expire on April 25, 2019.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Conventions and Terminology . . . . . . . . . . . . . . .   3
     1.2.  3GPP Terminology and Concepts . . . . . . . . . . . . . .   3
   2.  LTE, 4G Mobile Network  . . . . . . . . . . . . . . . . . . .   7
     2.1.  Network Overview  . . . . . . . . . . . . . . . . . . . .   7
     2.2.  QoS Challenges  . . . . . . . . . . . . . . . . . . . . .   9
     2.3.  Data Transport Using IP . . . . . . . . . . . . . . . . .  10
     2.4.  Virtualizing Mobile Networks  . . . . . . . . . . . . . .  11
   3.  Data Transport Using ICN  . . . . . . . . . . . . . . . . . .  11
   4.  ICN Deployment in 4G and LTE Networks . . . . . . . . . . . .  14
     4.1.  General ICN Deployment Considerations . . . . . . . . . .  14
     4.2.  ICN Deployment Scenarios  . . . . . . . . . . . . . . . .  14
     4.3.  ICN Deployment in LTE Control Plane . . . . . . . . . . .  17
     4.4.  ICN Deployment in LTE User Plane  . . . . . . . . . . . .  19
       4.4.1.  Dual stack ICN Deployments in UE  . . . . . . . . . .  19
       4.4.2.  Native ICN Deployments in UE  . . . . . . . . . . . .  22
     4.5.  ICN Deployment in eNodeB  . . . . . . . . . . . . . . . .  23