公开(公告)号：US20210105664A1

公开(公告)日：2021-04-08

申请号：US17082526

申请日：2020-10-28

Applicant: NEC Corporation

Inventor： Daisuke MIZUKAMI ,  Shinji ONISHI ,  Kazuhiro EGASHIRA ,  Shingo SHIGA ,  Toshiyuki TAMURA

IPC: H04W28/08 ,  H04W8/06

Abstract: A communication system capable of dynamically changing an MME to serve in call processing in accordance with the load condition of the MMEs and the like is provided. A communication system of the present invention includes: communication control apparatuses (10) to (12); and a node apparatus (20) that executes call processing relating to a communication terminal with the communication control apparatuses (10) to (12). The communication control apparatuses (10) to (12) form a context sharing group that shares subscriber data of the communication terminal. The node apparatus (20) selects a first communication control apparatus in the context sharing group, and transmits a call processing message to the first communication control apparatus. The first communication control apparatus executes the call processing using the subscriber data shared in the context sharing group.

公开(公告)号：US20190150046A1

公开(公告)日：2019-05-16

申请号：US16247974

申请日：2019-01-15

Applicant: NEC Corporation

Inventor： Shingo SHIGA ,  Shinji ONISHI ,  Daisuke MIZUKAMI ,  Kazuhiro EGASHIRA ,  Toshiyuki TAMURA

IPC: H04W36/08 ,  H04W84/06 ,  H04W88/00 ,  H04W4/06 ,  H04W4/02 ,  G08G1/09 ,  G08G1/0967 ,  H04L29/08

Abstract: An object of the present invention is to provide a vehicle communication system which distributes information which is necessary in vehicle units. A vehicle communication system according to the present invention includes: a vehicle base station which performs wireless communication with a vehicle terminal installed in a vehicle to receive vehicle related service; and a server apparatus which specifies the vehicle base station of a message distribution destination according to the vehicle related service to be provided, and distributes a message related to the vehicle related service to be provided, to the specified vehicle base station. When receiving the message transmitted from the server apparatus, the vehicle base station transmits the message to the vehicle terminal which subscribes to the vehicle related service related to the message, from a plurality of vehicle terminals and located in a communication area formed by the vehicle base station.

公开(公告)号：US20180249372A1

公开(公告)日：2018-08-30

申请号：US15556912

申请日：2016-03-07

Applicant: NEC Corporation

Inventor： Daisuke MIZUKAMI ,  Shinji ONISHI ,  Kazuhiro EGASHIRA ,  Shingo SHIGA ,  Toshiyuki TAMURA

IPC: H04W28/08 ,  H04W24/04

CPC classification number: H04W28/08 ,  H04W8/065 ,  H04W24/04 ,  H04W92/14

Abstract: A communication system capable of dynamically changing an MME to serve in call processing in accordance with the load condition of the MMEs and the like is provided. A communication system of the present invention includes: communication control apparatuses (10) to (12); and a node apparatus (20) that executes call processing relating to a communication terminal with the communication control apparatuses (10) to (12). The communication control apparatuses (10) to (12) form a context sharing group that shares subscriber data of the communication terminal. The node apparatus (20) selects a first communication control apparatus in the context sharing group, and transmits a call processing message to the first communication control apparatus. The first communication control apparatus executes the call processing using the subscriber data shared in the context sharing group.

公开(公告)号：US20180352594A1

公开(公告)日：2018-12-06

申请号：US15775537

申请日：2016-12-08

Applicant: NEC CORPORATION

Inventor： Takanori IWAI ,  Daisuke MIZUKAMI ,  Hisashi FUTAKI ,  Sadafuku HAYASHI ,  Hajime ZEMBUTSU ,  Yoshinori WATANABE ,  Toshiyuki TAMURA

IPC: H04W76/12 ,  H04L12/911 ,  H04W8/28 ,  H04W76/11

Abstract: A RAN node (2) receives, from a core network node (6, 7, 8), a first identifier that is used by a service, an application, or an edge server (5) to identify a radio terminal (1) connected to the RAN node (2), and associates the first identifier with a second identifier that is used by the RAN node (2) to identify the radio terminal (1). Further, the RAN node (2) communicates with the edge server (5) using the first identifier. It is thus, for example, possible to allow an MEC server (or an MEC application hosted on the MEC server) and a radio access network (RAN) node to directly exchange therebetween a control message regarding a specific radio terminal.

公开(公告)号：US20180077610A1

公开(公告)日：2018-03-15

申请号：US15554563

申请日：2016-03-11

Applicant: NEC Corporation

Inventor： Shinji ONISHI ,  Shingo SHIGA ,  Daisuke MIZUKAMI ,  Kazuhiro EGASHIRA ,  Toshiyuki TAMURA

IPC: H04W36/00 ,  H04W36/14

CPC classification number: H04W36/0011 ,  H04W36/14 ,  H04W48/18 ,  H04W84/12 ,  H04W88/08 ,  H04W92/20

Abstract: A communication system according to the present invention includes a base station that forms a mobile communication area, an access point that forms a wireless LAN communication area, an access point managing device that manages the access point, and an application server that provides an application service to a communication terminal located in the mobile communication area. In a case in which the communication terminal moves into the wireless LAN communication area within the mobile communication area, the access point managing device sets a data transmission path to the base station and relays data transmission between the base station and the communication terminal.

公开(公告)号：US20200329412A1

公开(公告)日：2020-10-15

申请号：US16916844

申请日：2020-06-30

Applicant: NEC Corporation

Inventor： Shingo SHIGA ,  Shinji ONISHI ,  Daisuke MIZUKAMI ,  Kazuhiro EGASHIRA ,  Toshiyuki TAMURA

IPC: H04W36/08 ,  H04W4/48 ,  H04W4/44 ,  G08G1/09 ,  G08G1/0967 ,  H04W4/02 ,  H04W4/06 ,  H04W88/00 ,  H04W84/06 ,  H04L29/08

Abstract: An object of the present invention is to provide a vehicle communication system which distributes information which is necessary in vehicle units. A vehicle communication system according to the present invention includes: a vehicle base station which performs wireless communication with a vehicle terminal installed in a vehicle to receive vehicle related service; and a server apparatus which specifies the vehicle base station of a message distribution destination according to the vehicle related service to be provided, and distributes a message related to the vehicle related service to be provided, to the specified vehicle base station. When receiving the message transmitted from the server apparatus, the vehicle base station transmits the message to the vehicle terminal which subscribes to the vehicle related service related to the message, from a plurality of vehicle terminals and located in a communication area formed by the vehicle base station.

公开(公告)号：US20180139691A1

公开(公告)日：2018-05-17

申请号：US15569066

申请日：2016-04-26

Applicant: NEC Corporation

Inventor： Shinji ONISHI ,  Daisuke MIZUKAMI ,  Shingo SHIGA ,  Kazuhiro EGASHIRA ,  Toshiyuki TAMURA

IPC: H04W48/16 ,  H04W24/10

CPC classification number: H04W48/16 ,  H04W24/10 ,  H04W36/14 ,  H04W48/18 ,  H04W84/12 ,  H04W92/12

Abstract: An exemplary object is to provide a communication system capable of seamlessly providing a service with utilization of MEC even when a communication terminal has moved across a wireless LAN communication area in a mobile communication area formed by a base station. The communication system according to the present invention includes a base station (10) that forms a mobile communication area, an access point (20) that forms a wireless LAN communication area, and an application server (40) that provides application services to a communication terminal (50) located in the mobile communication area. When the communication terminal (50) has moved into the wireless LAN communication area in the mobile communication area, the access point (20) sets a data transmission path with the base station (10) and relays data transmission between the base station (10) and the communication terminal (50).

公开(公告)号：US20180049088A1

公开(公告)日：2018-02-15

申请号：US15559751

申请日：2016-03-15

Applicant: NEC Corporation

Inventor： Shingo SHIGA ,  Shinji ONISHI ,  Daisuke MIZUKAMI ,  Kazuhiro EGASHIRA ,  Toshiyuki TAMURA

IPC: H04W36/08 ,  H04W4/04 ,  H04L29/08

CPC classification number: H04W36/08 ,  G08G1/09 ,  G08G1/096716 ,  G08G1/096741 ,  G08G1/096775 ,  H04L67/12 ,  H04W4/02 ,  H04W4/06 ,  H04W4/44 ,  H04W4/48 ,  H04W84/06 ,  H04W88/00 ,  H04W92/20

Abstract: An object of the present invention is to provide a vehicle communication system which distributes information which is necessary in vehicle units. A vehicle communication system according to the present invention includes: a vehicle base station which performs wireless communication with a vehicle terminal installed in a vehicle to receive vehicle related service; and a server apparatus which specifies the vehicle base station of a message distribution destination according to the vehicle related service to be provided, and distributes a message related to the vehicle related service to be provided, to the specified vehicle base station. When receiving the message transmitted from the server apparatus, the vehicle base station transmits the message to the vehicle terminal which subscribes to the vehicle related service related to the message, from a plurality of vehicle terminals and located in a communication area formed by the vehicle base station.