公开(公告)号：US20210409941A1

公开(公告)日：2021-12-30

申请号：US17288203

申请日：2019-10-29

Applicant: NEC Corporation

Inventor： Rohini RAJENDRAN ,  Nivedya Parambath SASI ,  Pradheep Kumar SINGARAVELU ,  Sivabalan ARUMUGAM ,  Anand Raghawa PRASAD ,  Hironori ITO

IPC: H04W12/06 ,  H04W12/08 ,  H04W48/02 ,  H04W76/19 ,  H04W76/34 ,  H04W80/02

Abstract: This disclosure is related to the security procedures for UE (300) in 5GLAN Group Communication. Security procedure involved in this disclosure is based on Authentication and authorization of UE (300) by Group Management Function (GMF) (500) in 5GLAN communication, attachment and detachment of UE (300) in 5GLAN Group due to state transition and the access restrictions imposed on UE (300) during state transition.

公开(公告)号：US20220286820A1

公开(公告)日：2022-09-08

申请号：US17629595

申请日：2020-08-13

Applicant: NEC Corporation

Inventor： Takahito YOSHIZAWA ,  Nivedya Parambath SASI ,  Rohini RAJENDRAN

IPC: H04W4/12 ,  H04W4/40 ,  H04W12/02

Abstract: A communication system, a UE (User Equipment), a communication method and a computer readable medium may be provided. The communication system (100) includes: a first UE (User Equipment) (110) including a first controller and a first transceiver, wherein the first controller is configured to control the transceiver to send a message including L2 ID (Layer 2 Identity) and verification information; and a second UE (120) including a second controller and a second transceiver, wherein the second controller is configured: to control the transceiver to receive the message from the first UE (110); and to determine whether to accept the L2 ID or not using the verification information.

公开(公告)号：US20220225093A1

公开(公告)日：2022-07-14

申请号：US17617458

申请日：2020-05-26

Applicant: NEC Corporation

Inventor： Nivedya Parambath SASI ,  Rohini RAJENDRAN ,  Takahito YOSHIZAWA ,  Toshiyuki TAMURA

IPC: H04W12/06 ,  H04W12/72

Abstract: This disclosure related to the aspects of 5G system that supports Public Land Mobile Network and Non-Pubic Network especially in the context of how the UE (110) can handle multiple subscriptions when connecting to a Non-Public Network.

公开(公告)号：US20220060901A1

公开(公告)日：2022-02-24

申请号：US17421240

申请日：2019-12-10

Applicant: NEC Corporation

Inventor： Rohini Rajendran ,  Pradheep Kumar SINGARAVELU ,  Nivedya Parambath SASI ,  Takahito YOSHIZAWA ,  Sivabalan ARUMUGAM ,  Anand Raghawa PRASAD

IPC: H04W12/122 ,  H04W24/10

Abstract: Accordingly, embodiments herein disclose a method and base station for preventing a User Equipment (UE) from attaching to a false base station. The method includes: generating, by a source base station, a UE specific Anonymity Challenge Parameter to the UE based on sensitive information from the UE, cell information, source base station information and initial Anonymity Challenge Parameter assigned to the particular base station; and sending, by the source base station, a measurement command message including the UE specific Anonymity Challenge Parameter to the UE. Further, the method includes receiving, by the source base station, an Anonymity Challenge Parameter acknowledgement as a response from the UE; and negotiating, by the source base station, the UE specific Anonymity Challenge Parameter with the UE to prevent the UE from attaching to the false base station.