M
Motoshi Tamura
Researcher at NTT DoCoMo
Publications - 15
Citations - 630
Motoshi Tamura is an academic researcher from NTT DoCoMo. The author has contributed to research in topics: Mobile station & Public land mobile network. The author has an hindex of 8, co-authored 15 publications receiving 630 citations.
Papers
More filters
Patent
Method and system for mobile communications
Motoshi Tamura,Mutsumaru Miki,Akiko Okamoto,Kenya Kusunose,Akihiro Uchikoshi,Daisuke Igarashi,Katsuhiko Yamagata,Takaaki Sato,Junichiro Hagiwara,Yasuyuki Watanabe,Takuya Hamajima,Masafumi Hata,Nobutaka Ishikawa,Yoshiyuki Yasuda,Kazufumi Yunoki,Nobuhide Uchiyama +15 more
TL;DR: In this article, the authors proposed a mobile communications system for transmission of various sorts of data in accordance with the development of multimedia in which the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherments manner with each other.
Patent
Base station apparatus of mobile communication system
Takehiro Nakamura,Junichiro Hagiwara,Etsuhiro Nakano,Koji Ohno,Seizo Onoe,Akihiro Higashi,Motoshi Tamura,Masatomo Nakano,Hiroshi Kawakami,Hiroki Morikawa +9 more
TL;DR: In this article, a base station including a transmitting and receiving amplifier for amplifying CDMA signals exchanged with a mobile station, a radio stage connected to the transmitting and receive amplifier for carrying out D/A conversion of a transmitted signal that undergoes baseband spreading, followed by quadrature modulation, and for detecting a received signal, then A/D conversion, and a transmission interface connected with the baseband signal processor for implementing interface with external channels.
Patent
Mobile communication method and mobile communication system
Motoshi Tamura,Mutsumaru Miki,Akiko Nakashima,Kenya Kusunose,Akihiro Uchikoshi,Daisuke Igarashi,Katsuhiko Yamagata,Takaaki Sato,Junichiro Hagiwara,Yasuyuki Watanabe,Takuya Hamajima,Masafumi Hata,Nobutaka Ishikawa,Yoshiyuki Yasuda,Kazufumi Yunoki,Nobuhide Uchiyama +15 more
TL;DR: In this article, the authors proposed an authentication scheme for paging by temporary mobile user identifiers (TMUI) and random numbers (S8-S10) in a mobile communication system.
Patent
Packet communications network
Hideo Morita,Tokuro Doi,Yukichi Saito,Motoshi Tamura,Daisuke Akiyama,Hiroshi Nakamura,Hisakazu Uesaka +6 more
TL;DR: In this paper, the authors define a communication hold mode for a user when the traffic volume of the user's transmission or reception of a packet per fixed time period is less than a predetermined value.
Patent
System and method for short-cell multiplex atm transmission
Akira Kaiyama,Akihisa Nakajima,Hiroshi Nakamura,Takatoshi Okagawa,Masafumi Onuki,Motoshi Tamura +5 more
TL;DR: In this paper, the authors proposed a short-cell multiplex for transmitting short data (basically, data of 48 bytes, but data of 96 bytes are also transmittable) generally shorter than the payload of a standard ATM cell through an ATM network.