公开(公告)号：US20220159533A1

公开(公告)日：2022-05-19

申请号：US17590996

申请日：2022-02-02

Applicant: NEC Corporation

Inventor： Vivek SHARMA ,  Meng WANG ,  Yassin Aden AWAD

IPC: H04W36/04 ,  H04W36/08

Abstract: A gateway is described which facilitates a change of communication cell for a mobile device in a communication system, which includes a core network. The gateway receives messages from a base station operating a cell and forwards the messages received from the base station to the core network. The gateway intercepts a message relating to a change of communication cell, from a source cell in which the mobile communication device is located to a target cell, to determine if the core network needs to be notified of the change of cell. When it is determined that the core network needs to be notified, the gateway generates a message for providing information relating to the change of cell to the core network and transmits the message to the core network.

公开(公告)号：US20210058993A1

公开(公告)日：2021-02-25

申请号：US17079230

申请日：2020-10-23

Applicant: NEC Corporation

Inventor： Vivek SHARMA

IPC: H04W76/14 ,  H04W48/16 ,  H04W76/23 ,  H04W36/00

Abstract: A system is disclosed in which a mobile communication device establishes device-to-device (D2D) communication with another mobile communication device, and searches for a communication network whilst engaged in the D2D communication. When it finds a communication network, the mobile communication device indicates that it is engaged in the D2D communication. The mobile communication device continues, or does not continue, the D2D communication based on an authorisation by the communication network.

公开(公告)号：US20200344765A1

公开(公告)日：2020-10-29

申请号：US16923510

申请日：2020-07-08

Applicant: NEC Corporation

Inventor： Vivek SHARMA

IPC: H04W72/08 ,  H04W72/04

Abstract: A mobile communications system is described in which a mobile device is operable to communicate with base stations using a first radio technology and with other devices using a second radio technology. The mobile device maintains a control plane connection with a first base station and a user plane connection via a second base station. In case of an interference is detected due to concurrent use of the first and second radio technologies, the mobile device provides assistance information to the base stations, based on which the base stations alleviate the effects of the detected interference.

公开(公告)号：US20200245197A1

公开(公告)日：2020-07-30

申请号：US16852050

申请日：2020-04-17

Applicant: NEC Corporation

Inventor： Vivek SHARMA

IPC: H04W36/00 ,  H04W12/04 ,  H04W12/02 ,  H04W16/32

Abstract: A communication system is described in which user plane communication and control plane communication for a particular mobile communication device can be split between a base station that operates a small cell and a macro base station. Appropriate security for the user plane and control plane communications is safeguarded by ensuring that each base station is able to obtain or derive the correct security parameters for protecting the user plane or control plane communication for which it is responsible.

公开(公告)号：US20180332646A1

公开(公告)日：2018-11-15

申请号：US16041546

申请日：2018-07-20

Applicant: NEC Corporation

Inventor： Vivek SHARMA

IPC: H04W76/14 ,  H04W48/16 ,  H04W76/23 ,  H04W84/08

CPC classification number: H04W76/14 ,  H04W36/03 ,  H04W48/16 ,  H04W76/23 ,  H04W84/08

Abstract: A system is disclosed in which a mobile communication device establishes device-to-device (D2D) communication with another mobile communication device, and searches for a communication network whilst engaged in the D2D communication. When it finds a communication network, the mobile communication device indicates that it is engaged in the D2D communication. The mobile communication device continues, or does not continue, the D2D communication based on an authorisation by the communication network.

公开(公告)号：US20180124655A1

公开(公告)日：2018-05-03

申请号：US15851597

申请日：2017-12-21

Applicant: NEC Corporation

Inventor： Vivek SHARMA

IPC: H04W36/00 ,  H04W12/04 ,  H04W12/02 ,  H04W16/32 ,  H04L9/08 ,  H04W84/04

CPC classification number: H04W36/0038 ,  H04L9/0861 ,  H04L2209/24 ,  H04W12/02 ,  H04W12/04 ,  H04W16/32 ,  H04W36/0069 ,  H04W84/045

Abstract: A communication system is described in which user plane communication and control plane communication for a particular mobile communication device can be split between a base station that operates a small cell and a macro base station. Appropriate security for the user plane and control plane communications is safeguarded by ensuring that each base station is able to obtain or derive the correct security parameters for protecting the user plane or control plane communication for which it is responsible.

公开(公告)号：US20180035436A1

公开(公告)日：2018-02-01

申请号：US15543294

申请日：2016-01-13

Applicant: NEC Corporation

Inventor： Vivek SHARMA ,  Yuhua CHEN

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04W16/14 ,  H04W72/1231 ,  H04W76/15 ,  H04W84/042 ,  H04W84/12 ,  H04W88/06

Abstract: A communication system is described in which a communication apparatus configured provides a first communication path to a user communication device to using a first radio resource and another communication apparatus provides a second communication path to the user communication device to using a second radio resource, different from the first radio resource. The communication apparatus controls flow of user data via the first and second communication paths based on information which is received from the other communication apparatus and which indicates availability of the second radio resource for transmission of the user data.

公开(公告)号：US20170295570A1

公开(公告)日：2017-10-12

申请号：US15512596

申请日：2015-09-15

Applicant: NEC Corporation

Inventor： Yassin Aden AWAD ,  Yuhua CHEN ,  Vivek SHARMA

IPC: H04W72/04 ,  H04W4/00

Abstract: A communication system is described in which machine-type communication devices having a reduced bandwidth can be allocated physical uplink control channel resources that fall within that reduced bandwidth whilst other, legacy, devices can continue to use physical uplink control channel resources that do not fall within that reduced bandwidth.

公开(公告)号：US20220394567A1

公开(公告)日：2022-12-08

申请号：US17891256

申请日：2022-08-19

Applicant: NEC Corporation

Inventor： Vivek SHARMA

IPC: H04W36/00 ,  H04W12/04 ,  H04W12/033 ,  H04W12/037 ,  H04W12/041 ,  H04W12/0431 ,  H04W12/0433 ,  H04W12/02 ,  H04W16/32

Abstract: A communication system is described in which user plane communication and control plane communication for a particular mobile communication device can be split between a base station that operates a small cell and a macro base station. Appropriate security for the user plane and control plane communications is safeguarded by ensuring that each base station is able to obtain or derive the correct security parameters for protecting the user plane or control plane communication for which it is responsible.

公开(公告)号：US20210314825A1

公开(公告)日：2021-10-07

申请号：US17350514

申请日：2021-06-17

Applicant: NEC Corporation

Inventor： Vivek SHARMA

IPC: H04W36/00 ,  H04W12/04 ,  H04W12/033 ,  H04W12/037 ,  H04W12/041 ,  H04W12/0431 ,  H04W12/0433 ,  H04W12/02 ,  H04W16/32

Abstract: A communication system is described in which user plane communication and control plane communication for a particular mobile communication device can be split between a base station that operates a small cell and a macro base station. Appropriate security for the user plane and control plane communications is safeguarded by ensuring that each base station is able to obtain or derive the correct security parameters for protecting the user plane or control plane communication for which it is responsible.