Presentation 2022-03-02
Fast Network Switching between Public and Local 5G Networks
Kazuo Ibuka, Takeshi Matsumura,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Various countries are attempting to apply the 5th generation mobile communication system (5G) to private networks, and Local 5G has already been institutionalized in Japan. One of the measures for the spread of Local 5G is to enable the use of both public and Local 5G networks with one smartphone. However, when using a cellular system applied to LTE (Long Term Evolution) or 5G, radio communication is interrupted for a long time due to the network switching between the public and Local 5G networks. The authors have proposed a virtual pre-connection scheme that can solve this problem, while two wireless modems are necessary to be operated at the same time for realizing the proposed scheme. Meanwhile, most of the off-the-shelf smartphones cannot use two wireless modems for communication at the same time. In this paper, we propose a fast network switching technology that can be applied to off-the-shelf smartphones. In addition, we verify the usefulness of the proposed scheme by an experiment using an actual network.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Private network / Local 5G / Fast network switching
Paper # RCS2021-264
Date of Issue 2022-02-23 (RCS)

Conference Information
Committee RCS / SR / SRW
Conference Date 2022/3/2(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Mobile Communication Workshop
Chair Eiji Okamoto(Nagoya Inst. of Tech.) / Suguru Kameda(Hiroshima Univ.) / Hanako Noda(Anritsu)
Vice Chair Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) / Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Denki Univ.) / Hirokazu Sawada(NICT)
Secretary Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima(Mie Univ.) / Osamu Takyu(Tokai Univ.) / Kentaro Ishidu(NTT) / Kazuto Yano(NTT) / Keiichi Mizutani(NIigata Univ.) / Kentaro Saito / Hirokazu Sawada
Assistant Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Mai Ohta(Fukuoka Univ.) / Taichi Ohtsuji(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / Akihito Noda(Nanzan Univ.)

Paper Information
Registration To Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fast Network Switching between Public and Local 5G Networks
Sub Title (in English) Aiming to Improve Local 5G Connectivity
Keyword(1) Private network
Keyword(2) Local 5G
Keyword(3) Fast network switching
1st Author's Name Kazuo Ibuka
1st Author's Affiliation National Institute of Information and Communications Technology(NICT)
2nd Author's Name Takeshi Matsumura
2nd Author's Affiliation National Institute of Information and Communications Technology(NICT)
Date 2022-03-02
Paper # RCS2021-264
Volume (vol) vol.121
Number (no) RCS-391
Page pp.pp.68-73(RCS),
#Pages 6
Date of Issue 2022-02-23 (RCS)