Native Deployment of ICN in LTE, 4G Mobile Networks
draft-irtf-icnrg-icn-lte-4g-08

Document Type Active Internet-Draft (icnrg RG)
Authors Prakash Suthar  , Milan Stolic  , Anil Jangam  , Dirk Trossen  , Ravi Ravindran 
Last updated 2020-10-12 (latest revision 2020-07-25)
Replaces draft-suthar-icnrg-icn-lte-4g
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ICN Research Group                                        Prakash Suthar
Internet-Draft                                              Milan Stolic
Intended status: Informational                          Anil Jangam, Ed.
Expires: January 26, 2021                             Cisco Systems Inc.
                                                            Dirk Trossen
                                                     Huawei Technologies
                                                   Ravishankar Ravindran
                                                   Sterlite Technologies
                                                           July 25, 2020

          Native Deployment of ICN in LTE, 4G Mobile Networks
                     draft-irtf-icnrg-icn-lte-4g-08

Abstract

   LTE, 4G mobile networks use IP-based transport for the control plane
   to establish the data session at the user plane for the actual data
   delivery.  In the existing architecture, IP transport used in the
   user plane is not optimized for data transport, which leads to
   inefficient data delivery.  For instance, IP unicast routing from
   server to clients is used for the delivery of multimedia content to
   User Equipment (UE), with each user receiving a separate stream.
   From a bandwidth and routing perspective, this approach is
   inefficient.  Multicast and broadcast technologies have recently
   emerged for mobile networks, but their deployments are very limited
   or at an experimental stage.  ICN is a rapidly emerging technology,
   although much of the work is focused on fixed networks.  The focus of
   this draft is on native deployment of ICN in cellular mobile networks
   by using ICN in a 3GPP protocol stack.  ICN has inherent capabilities
   for multicast, anchorless mobility, and security, while being
   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 PDCP/RLC/MAC/PHY, or in a dual
   stack mode (alongside IP).  This document is a product of the
   Information-Centric Networking Research Group (ICNRG).

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 January 26, 2021                [Page 1]
Internet-Draft       draft-irtf-icnrg-icn-lte-4g-08            July 2020

   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 January 26, 2021.

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  3GPP Terminology and Concepts . . . . . . . . . . . . . . . .   3
   3.  LTE, 4G Mobile Network  . . . . . . . . . . . . . . . . . . .   7
     3.1.  Network Overview  . . . . . . . . . . . . . . . . . . . .   7
     3.2.  QoS Challenges  . . . . . . . . . . . . . . . . . . . . .   9
     3.3.  Data Transport Using IP . . . . . . . . . . . . . . . . .  10
     3.4.  Virtualizing Mobile Networks  . . . . . . . . . . . . . .  10
   4.  Data Transport Using ICN  . . . . . . . . . . . . . . . . . .  11
   5.  ICN Deployment in 4G and LTE Networks . . . . . . . . . . . .  13
     5.1.  General ICN Deployment Considerations . . . . . . . . . .  13
     5.2.  ICN Deployment Scenarios  . . . . . . . . . . . . . . . .  14
     5.3.  ICN Deployment in LTE Control Plane . . . . . . . . . . .  17
     5.4.  ICN Deployment in LTE User Plane  . . . . . . . . . . . .  19
       5.4.1.  Dual stack ICN deployments in UE  . . . . . . . . . .  19
       5.4.2.  Native ICN Deployments in UE  . . . . . . . . . . . .  23
     5.5.  ICN Deployment in eNodeB  . . . . . . . . . . . . . . . .  24
     5.6.  ICN Deployment in Packet Core (SGW, PGW) Gateways . . . .  26
   6.  Security and Privacy Considerations . . . . . . . . . . . . .  27
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