Japan's Beyond 5G Promotion Consortium (B5GPC) Publishes B5G Whitepaper

Japan's Beyond 5G Promotion Consortium (B5GPC) aims to achieve the early and smooth introduction of Beyond 5G and to strengthen the international competitiveness of Beyond 5G in order to realize the strong and vibrant society expected in the 2030s.

The Consortium consists of the General Assembly and its subordinate committees, the Planning and Strategy Committee and the International Committee. The activities of each committee are as follows:

  • Committee for Planning and Strategy:
    • Study of comprehensive strategies to promote Beyond 5G
    • Preparation of Beyond 5G White Paper
  • International Committee:
    • Identifying international trends for promoting Beyond 5G
    • International dissemination of the status of Japan's efforts

Last week, B5GPC published Beyond 5G White Paper, "Message to the 2030s". The website states:

The White Paper Subcommittee has considered Beyond 5G, which is expected to be commercialized around 2030, assuming future daily life of users and a wide range of usage scenarios that span many industries. Through this study with various perspective, we examined the requirements that a communication system as a social infrastructure should have. We also considered Beyond 5G key concepts, network requirements, capabilities, architectures, and key technologies based on usage scenarios and future technology. Based on these studies, this white paper summarizes issues and expectations from each industry for Beyond 5G, capabilities required for Beyond 5G, and technological trends, etc.

The whitepaper, which is 283 pages long, is available here. The Quantitative and Qualitative KPIs are worth taking a look at along with the lot of other useful information within the paper. They are in Table 5.2-1 and 5.2-2, and reproduced below for convenience and discussions.

Quantitative Target KPIs for Beyond 5G

  • User experienced data rate (DL/UL): 10-100Gbps typical and 1Gbps everywhere
  • Peak data rate (DL/UL): 100Gbps or higher
  • Capacity: 100 times of IMT-2020
  • Latency: 1msec for general use case, 0.1msec for localized communication use case (one-way)
  • Jitter: 1msec or less
  • Response: 100msec round trip application response (including expected application dependent processing delay)
  • Reliability: 10-6 - 10-7 (RAN)
  • Positioning accuracy: Order of cm (and more)
  • Connection density: 106 - 107 devices /km2
  • Energy efficiency: 100 times of IMT-2020
  • Mobility: 1000 km/h
  • Area coverage: 100% land coverage. Coverage expansion to land, sea, air, and space
  • Area coverage/HAPS: Horizontal coverage: tens to hundreds of kilometers in radius. Vertical coverage: a few kilometers above the ground

Quantitative Target KPIs for Beyond 5G

  • Sustainability 
    • Reduce the environmental impact of equipment (use of environmentally friendly materials, improved reusability)
    • Equipment longevity (software extensibility and modular structure of HW)
    • Carbon neutrality (use of renewable power sources)
  • Trustworthy / Security / Robustness
    • Cryptographic processing speeds exceeding the peak data rate (100Gbps and more)
    • Support for 256-bit key length for post-quantum cryptography
    • Instantaneous recovery from disasters and failures
  • Autonomy 
    • Zero-touch, autonomous coordination of devices
    • Building optimal beyond wired and wireless networks
    • Achieve full automation that simultaneously satisfies laborsaving, flexibility, and speed in all workflows, from construction to operation
  • Scalability 
    • Seamless connections with satellites and HAPS, make terminals, windows, and other devices as base stations, and communication at everywhere through cooperation of every device
    • Open interfaces (Network API, application API)

B5GPC Promotional Video below gives a good insight into the research directions in the paper.

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