International telecommunication union


Recommendations to parent group on Emerging Network Technologies



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7.5.2 Recommendations to parent group on Emerging Network Technologies


The emerging network technologies group within FG-IMT-2020 has studied, in particular, the applicability of ICN to solve the IMT-2020 challenges. In Gap E.1 we have described three deployment options: (1) over-the-top, (2) continue using IP as transport for mobility management and ICN for service delivery without overlay, and (3) using ICN as native transport for mobility management and service delivery. Option (1) realizes no inherent benefits for IMT-2020 as it is purely over-the-top. Option (2) allows incremental introduction of ICN to carrier networks, and we view this as the most likely near-term use of ICN within IMT-2020. Option (3) requires further development of ICN and IMT-2020 standards to use ICN natively in place of IP transport.

ICN may offer technological benefits for realizing IMT-2020 goals. We recommend that the Study Group continue investigation of ICN and promote more in depth study of ICN inside IMT-2020 networks, particularly as a new service delivery platform that can unify the many different requirements of IoT, edge computing and content delivery.

Option (2) makes the use of ICN visible to the IMT-2020 network so it is not simply a bit-pipe for this new technology, but a participant. The use of ICN to replace IP as the transport protocol within IMT-2020 is still a stretch goal within the 2020 timeframe. While it is an interesting research area, we believe the current effort should go towards option (2).

Additional references related to ICN can be found in [b-ITU-T Y.3033] and [b-Y.supFNDAN];


8 Conclusion and future work


  • Considering that the mandate (gap analysis) is successfully completed, the focus group should not continue in its current form;

  • The focus group has identified a set of gaps that need to be addressed. An indication has been given where it should be done;

  • Some aspects have not been addressed sufficiently due to time constraints, e.g., security and privacy;

  • The major differences between 4G and 5G have been identified and considered during the preparation of the individual gaps.

  • Some gaps do appear to be useful to continue moving forward with, considering the gaps, and in coordination with other SDOs:

    • Demonstrations or prototyping with other groups (e.g., with open source community);

    • Network softwarization and ICN;

    • Network architecture refinement;

    • Fixed mobile convergence;

    • Network slicing for front haul/back haul;

    • New traffic models and associated QoS and OAM aspects applicable to IMT-2020 architecture.

Bibliography


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[b-ITU-T Y.3021] Recommendation (2012) - Framework of Energy Saving in Future Networks - http://www.itu.int/rec/T-REC-Y.3021-201201-I/en;

[b-ITU-T Y.3031] Recommendation (2012) - Identification framework in future networks- http://www.itu.int/rec/T-REC-Y.3031-201205-I;

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