Nec Corporation

Yusuke Miyagawa

Yasuhiro Watanabe

Takayuki Kido

Takuo Akimoto

Osamu Kurokawa

Yuki Nakanishi

Hiroaki Akiyama

Takeshi B Nishimura

Naoki Yoshida

Shunsuke Yokouchi

Isamu Konta

Tomoya Kogure

Seiji Gisushi

Takeshi Shimonuri

A video management apparatusincludes: an abnormality video registration unitconfigured to associate a plurality of abnormality video data obtained in a respective plurality of first worksites at an abnormality occurrence time with the respective pieces of first worksite information related to safety of the respective first worksites, and to register the plurality of abnormality video data in an abnormality video database, in response to obtaining each of a plurality of pieces of abnormality occurrence information indicating abnormalities that have occurred at the respective plurality of first worksites; a notification processing unitconfigured to notify a second terminal associated with a second worksite, of information related to the registration of these abnormality video data; and a video distribution processing unitconfigured to distribute the abnormality video data associated with the second worksite from among the plurality of abnormality video data to the second terminal.

Video management apparatus, video management method, and program

When a representative PS server receives a P-TMSI contained in a PDP context succession request signal from a UE according to a handover communication procedure prescribed in an applicable standard after the UE moves, if the PS server identified with the identification information contained in the received P-TMSI is not its own representative PS server, the representative PS server identifies the PS server identified with the identification information as a PS server that manages a femtocell base station to which the UE belonged before it moved and forwards the PDP context succession request signal to the identified PS server.

Communication system

AS-B () measures a telephone call time from a time point when a telephone call, which is audio-originated by UE (), starts. When a time obtained by subtracting the telephone call time from a time for which the UE () can telephone-call becomes a predetermined time, the AS-B () issues a multiplex instruction to FAP (). When having received the multiplex instruction, the FAP () multiplexes a sound, which is based on a sound source file stored in advance, with audio data to be transmitted to the UE (), and transmits the audio data, with which the sound has been multiplexed, to the UE ().

When a representative service control device receives a PDP context succession request signal according to a handover communication procedure prescribed in an applicable standard, the representative service control device transmits a P-TMSI contained in the PDP context succession request signal as an address request to a database device. When the representative service control device receives address information of a service control device from the database device, the representative service control device forwards the PDP context succession request signal received from the request transmission means to the received address.

When a voice call is made from or received by UE () that is present in both 3G femto area () and LTE area (), line switching for making a voice call or receiving a voice call is performed from MME () to P-CSCF () by using a predetermined protocol.

Communication system for LTE network

In order to enable a communication system introduced with a femtocell base station using an IMS network, to perform PS service similar to that of the existing 3G network, a service control apparatus (SGSN functional unit), based on the UE's message transmitted to the femtocell base station (FAP), acquires UE's subscriber information for PS (Packet Switching) service, from a HLR and registers the subscriber information in a VLR that is present on the IMS network. Then, service control apparatus performs PS service based on the subscriber information registered in the VLR.

Service control apparatus, relay apparatus, femtocell base station, communication system, control method and program

When accepting an establishment request (Cx-LIR) for establishing an information communication path between a sending-side UE and a receiving-side UE, an HSS performs control so as to establish the information communication path between the sending-side UE and the receiving-side UE via an MGW and an existing 3G network if the receiving-side UE exists in an IMS network and is a communication interception target terminal.

Management apparatus, control apparatus, communication system, control method and program

The femto cell base station is a femto cell base station that connects a UE (User Equipment) to a core network side and includes storing means and control means. The storing means retains subscriber information of the UE visiting an area under control of the femto cell base station. The control means deletes the subscriber information of the UE, that is removed from the control of the femto cell base station, from the storing means.

Femto cell base station, communication control apparatus, communication system, control method and program

A Femtocell base station has a determination means and a transmission means. The determination means, upon receiving a location update request message from UE (User Equipment), determines whether a first message that prompts the UE to again attempt a location update should be transmitted to the UE, whether a second message that prompts the UE to divert to another network should be transmitted to the UE, or whether a third message that notifies the UE that the location update request is accepted should be transmitted to the UE. The transmission means transmits to the UE either the first message, or the second message, or the third message in accordance with the determination of the determination means.

Growing community of inventors

Tokyo, Japan

Yusuke Miyagawa