Nec Corporation

Nec Commuication Systems Ltd.

Kazuki Eguchi

Yasuhiro Watanabe

Osamu Kurokawa

Hiroaki Akiyama

Naoki Yoshida

Takayuki Kido

Shunsuke Yokouchi

Yasuyuki Ueda

Toru Shiiba

Tomiharu Hamaguchi

Takuo Akimoto

Hisashi Futaki

Toshiyuki Tamura

Sadafuku Hayashi

Takanori Iwai

Yoshinori Watanabe

Nobuhiko Itoh

Naoaki Suzuki

Tomoaki Hokao

Kenki Takagi

Koki Hayashi

Tooru Kikuchi

Ling Xu

Kouichi Kimura

Yuichiro Kameoka

Hiroki Aoki

Tomiharu Hamguchi

Yasuo Kanazawa

Hideki Bessho

Akatsuki Minami

A network entity () sends, to a mobility management entity () or a subscriber server (), a request message in order to configure the mobility management entity () to report a second identifier to be used by a radio access network node () for identifying a radio terminal (). Further, the network entity () receives the second identifier from the mobility management entity () directly or through the subscriber server () and communicates with the radio access network node () by using the second identifier. It is thus, for example, possible to allow an MEC server (or an MEC application hosted on the MEC server) and the radio access network (RAN) node to directly exchange therebetween control messages regarding a specific radio terminal.

Mobility management entity, network entity, and method and computer readable medium therefor

When a femto cell base station used for a communication system provided with a function of providing a predetermined supplementary service receives first information indicating supplementary service control from a radio terminal, the femto cell base station converts the received information to a SIP (Session Initiation Protocol) message including the first information and transmits the SIP message to a higher apparatus in the communication system.

Communication system and apparatus for providing supplementary service in femto cell

A communication system of the present invention is a communication system connected to a public communication network including emergency organization communication apparatus (), the communication system includes femto base station () wirelessly connected to wireless terminal (), wherein femto base station () includes a first communication controller that attaches first location information, which is information for identifying a location of femto base station () or for identifying a location of an assembly of a plurality of base stations including femto base station (), to a SIP message in order to notify the first location information to emergency organization communication apparatus () when there is a call from wireless terminal (), and transmits the SIP message to another apparatus.

Communication system, femto base station, call session control server, home subscriber server, communication method, and program

A femto cell base station includes a generating part that generates a SIP message including a terminal ID of a radio terminal and a check request for the terminal ID at a predetermined time, and a first transmitting part that transmits the SIP message generated by the generating part to a higher level apparatus in the communication system.

Communication system for checking for unauthorized use of a terminal

A femtocell base station (FAP) converts, when information concerning a SMS is received from UE (User Equipment), the received information concerning the SMS into a SIP (Session Initiation Protocol) message including the received information concerning the SMS and transmits the converted SIP message to the core network side. The femtocell base station converts, when a SIP message including information concerning the SMS is received from the core network side, the information concerning the SMS included in the received SIP message into a message that can be recognized by the UE and transmits the converted information concerning the SMS to the UE.

Femtocell base station, gateway system, MAP-GW apparatus, communication system, control method, and program

A communication system for solving a problem, in which secure communications security cannot be ensured in communications between a femtocell base station and UE, is provided. The communication system includes UE (User Equipment) and an HLR (Home Location Register) used in an IMS (IP Multimedia subsystem) network and a femtocell base station (Femto AP) that constructs a predetermined communication area. The femtocell base station exists between the UE and the HLR, acquires a concealment key corresponding to the UE from the HLR during authentication of the UE, and executes a concealment process to conceal the identity of the UE based on the concealment key.

Communication system, femtocell base station, authentication apparatus, communication method, and recording medium

A communication system that includes at least UE and an HLR that are used in an IMS network further includes: a Femto-cell base station that makes up a predetermined communication area, and a control unit for controlling at least communication between the UE and the HLR. The Femto-cell base station and the control unit are present between the UE and the HLR. The Femto-cell base station includes a transmission unit for transmitting messages received from the UE to the control unit and for transmitting messages received from the control unit to the UE. The control unit converts messages received from the Femto-cell base station to messages that can be recognized by the HLR, and converts messages received from the HLR to messages that can be recognized by the UE.

Communication system, femto-cell base station, authentication device, communication method, and memory medium

A Femto Access Point includes determination means for determining whether or not called side user equipment is accommodated in the Femto Access Point; and communication control means for, if the determination means has determined that the called side user equipment is accommodated in the Femto Access Point, sending out a Ring Back Tone to calling side user equipment.

Communication system, Femto Access Point and communication method

Growing community of inventors

Tokyo, Japan

Kazuki Eguchi