Ntt Docomo, Inc.

Ntt Mobile Communications Network, Inc.

Nit Docomo, Inc.

Kazufumi Yunoki

Yasuyuki Watanabe

Motoshi Tamura

Takaaki Sato

Junichiro Hagiwara

Katsuhiko Yamagata

Mutsumaru Miki

Yoshiyuki Yasuda

Masafumi Hata

Takuya Hamajima

Nobuhide Uchiyama

Nobutaka Ishikawa

Akiko Okamoto

Kenya Kusunose

Akihiro Uchikoshi

Daisuke Igarashi

Takehiro Ida

Hidetoshi Yazaki

Kouji Chiba

Norihito Tokuhiro

Shigehide Sawayanagi

Seizo Onoe

Yoshihiro Ishikawa

Akihiro Higashi

Hiroyuki Hattori

Mitsuo Iwanaga

Hiromi Himeno

Noriko Niizato

Keisuke Suzuki

Katsumi Kobayashi

Masaki Nishimura

Makoto Ito

Yoshihiko Omori

Kiyohito Nagata

Keisuke Sasada

Shinsuke Sawamukai

Hisayuki Aso

Reika Higa

Yuukichi Saito

Takahiro Yamane

Akiko Green Gables C-101 12-14 Okamoto

Nobutaka 202 Bell Light Nokendai Ishikawa

An RNC includes: a first call request reception unit configured to receive from an exchange a first call request to only an already located wireless cell; a presumably located wireless cell derivation unit configured to derive a presumably located wireless cell in which a target communication terminal device is presumably located; a first call making unit configured to make a call to the already located wireless cell and the presumably located wireless cell; a call response signal transmission unit configured to transmit a response signal to the call, to the exchange; a second call request reception unit configured to receive from the exchange a second call request to a wireless cell different from the already located wireless cell, in a case where the response signal to the first call request has not been transmitted; and a second call making unit configured to make the call to the different wireless cell.

Exchange, wireless network control device, wireless network device, and wireless communication network system

Execution of an application that functions when a mobile communication terminal is performing communication in a particular mobile communication network. A mobile communication terminal includes an application execution unit for executing one or more applications, a mobile communication unit for performing location registration in a mobile communication network for establishing a communication state, a communication network specifying unit for specifying the mobile communication network in which location registration is made, and an application control unit for performing control on the application execution unit so as to start an application corresponding to the specified mobile communication network.

Mobile communication terminal and terminal control method

A mobile station includes a public land mobile network registration unit that registers public land mobile networks including a public land mobile network input by a manual operation, wherein the public land mobile network input by the manual operation is not detected, and a public land mobile network selecting unit that selects a public land mobile network specified by the manual operation, among the public land mobile networks registered in the public land mobile network registration unit, wherein the public land mobile networks registered in the public land mobile network registration unit include the public land mobile network which is not detected.

Mobile station and method

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.

Method and system for mobile communications

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.

A communication terminal is provided including a plurality of service providing sections (terminal adaptation function, operation section) which terminates a call, accepts operation instruction information, and provides a predetermined information service, a DCF for managing the setup information, which is commonly set for the plurality of service providing sections and outputting control instruction information based on this setup information or operation instruction information, and a control section which controls operation of the plurality of service providing sections based on the control instruction information which is output from the DCF, are disposed, so that operation control of the plurality of service providing sections (e.g. startup of transfer/telephone answering machine) according to the common setup information or operation instruction information is implemented.

Communication terminal, service providing equipment, common setup information management equipment, and communication control method

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 dental 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.

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Yokosuka, Japan

Kazufumi Yunoki