NTT Docomo and SK Telecom lay out Common Requirements for 6G

This week the largest South Korean operator SK Telecom and the the largest Japanese operator, NTT Docomo released a joint press release, timed to coincide with MWC 2023, of their two white papers, one on 'Green Mobile Network: Energy Saving Efforts by SK Telecom and NTT DOCOMO', and the other one on '6G Common Requirements'.

Regarding the 6G paper/presentation, the press release said:

The release of the white papers is the first outcome of a basic agreement that SKT and DOCOMO signed last November to explore opportunities for technical collaboration on next-generation telecommunication infrastructure technologies for 5G evolution and 6G.

For 6G, the paper reviews requirements and challenges including specific performance levels and implementation scenarios, focusing on technical issues of particular importance to mobile operators:

  • Performance requirements and implementation scenarios for each frequency band, taking into account the characteristics of each frequency
  • Issues concerning coverage and devices in high-frequency bands
  • Standards for migration to 6G architecture and application of cloud-native / open architecture

Going forward, SKT and DOCOMO will continue to collaborate in various technical fields, aiming to enhance the competitiveness and operational efficiency of 5G as well as support the global standardization and technical verification of 6G. They will also collaborate with global telecom operators on 6G standardization and R&D with the goal of building a global ecosystem that encompasses advanced industries and technologies.

You can download the 6G Common Requirements document here.

The topics covered in the document are as follows:

  • 6G Requirements for Consideration
  • Peak Data Rate for Each Spectrum: Estimate reasonable target peak data rate considering the available frequency bandwidth for each spectrum
  • Deployment Scenario for Each Spectrum: Clarify the main deployment scenario for each spectrum considering characteristics of each spectrum
  • Spectrum vs. Peak Data Rate / Deployment Scenario
  • 6G Architecture and 6G Migration: Lessons learned from 5G on how to simplify 6G architecture(s) and 6G migration
  • Coverage Extension and Device Problem: Innovative radio technologies for RF components to solve the high spectrum challenge for coverage and user experience
  • Open RAN Architecture: Lessons learned from 5G and how Introduction of Open RAN architectures should be further facilitated by making it a default option in 6G
  • Cloud-native Architecture: Lessons learned from 5G and how Cloud-native should be refined in 5G Evolution and towards 6G
  • Network Automation: Lessons learned from 5G and how Network automation should be extended in 5G Evolution and towards 6G

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