Method and system for mobile communications

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7953414
APP PUB NO 20090191924A1
SERIAL NO

12361346

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • NTT DOCOMO, INC.

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hagiwara, Junichiro Yokohama, JP 49 886
Hamajima, Takuya Yokosuka, JP 16 606
Hata, Masafumi Yokosuka, JP 17 640
Igarashi, Daisuke Yokosuka, JP 37 692
Ishikawa, Nobutaka Yokohama, JP 15 594
Kusunose, Kenya Yokosuka, JP 15 594
Miki, Mutsumaru Yokosuka, JP 18 638
Okamoto, Akiko Kitakyushu, JP 15 594
Sato, Takaaki Yokosuka, JP 118 1293
Tamura, Motoshi Yokosuka, JP 77 1265
Uchikoshi, Akihiro Yokosuka, JP 15 594
Uchiyama, Nobuhide Hiroshima, JP 15 594
Watanabe, Yasuyuki Yokosuka, JP 148 1860
Yamagata, Katsuhiko Yokohama, JP 21 673
Yasuda, Yoshiyuki Yokohama, JP 21 760
Yunoki, Kazufumi Yokosuka, JP 31 810

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation