The first scientific workshop
presented by the 24th URSI-C in Japan

Session title: "Wireless Access Technologies
Towards the 5th Generation Mobile Communication"

1. Convener: Prof. Satoshi Denno (Okayama University)

2. Date/time: 14:00 - 17:00, June 29th, 2018

3. Venue: 16th Building, Yagami Campus (Yokohama city, Kanagawa pref.)

4. Registration fee: Free

5. Listed attendees: 28 persons

6. Local arrangement: Prof. Yukitoshi Sanada (Keio University)

7. Session title: "Wireless Access Technologies Towards the 5th Generation Mobile Communication"

8. Presentations:
  • 14:00 - 14:10 Opening Remarks
    Prof. Makoto Taromaru, Chair, Commission C of URSI-JNC
    (Fukuoka University)
  • 14:10 - 14:50 "Docomo's 5G Trial for 5G Realization"
    Dr. Satoshi Suyama (NTT Docomo)
  • 14:50 - 15:30 "Advancement of Non-Linear Precoding Technology for Multi-User
    MIMO Systems"
    Dr. Manabu Mikami (Softbank)
  • 15:30 - 15:40 Coffee Break (10 min.)

  • 15:40 - 16:20 "Indoor and Outdoor Field Experimental Results of Low-SHF-Band
    Multi-UserC-RAN Massive MIMO Systems for 5G"
    Mr. Kenichiro Yamazaki (NEC), et al.
  • 16:20 - 17:00 "Standardization activities for high speed train scenarios in 3GPP 5G NR"
    Dr. Fumihiro Hasegawa (Mitsubishi Electric), et al.
  • 17:00Closing

9.Reception: held from 17:30 to 19:30 at Yagami faculty lounge, Yagami Campus Keio University, Yokohama. The number of attendees is 14 persons

10.The Steering committee meeting took place from 11:30 to 12:00 on June 29th, 2018.

11. Concluding Remarks
There are 5 requirements for the 5th generation mobile communication (5G) such as "Massive connection", "Low cost and low power consumption", "Low latency", "High transmission speed", "High capacity". We listened to the talk mainly on research and development for the latter three requirements.
I have used mobile phones since the second generation systems was launched. I felt that the LTE is enough high from the viewpoint of transmission speed. Actually, the presentation by the researcher of NTT Docomo impressed me that more high speed and low latency wireless networks are truly needed in some business scenes.
In addition, such high speed wireless networks are made possible by some emerging technologies such as precoding that have been investigated intensively. The 5G testbed based on such emerging technologies and the measurement campaign results with the testbed make me feel sure that the 5G will be really commercialized in 2020.
The 5G network will be spreading over the world, for instance, receivers on high speed trains, which is very impressive.

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