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1.发明授权公开(公告)号：US11290874B2
公开(公告)日：2022-03-29
申请号：US16961548
申请日：2019-01-09
Applicant: NEC CORPORATION
Inventor： Sheeba Backia Mary Baskaran , Sivakamy Lakshminarayanan , Anand Raghawa Prasad , Sivabalan Arumugam , Hironori Ito , Takahito Yoshizawa
Abstract: A communication terminal (10) includes control means for generating a subscription concealed identifier (SUCI) including a subscription permanent identifier (SUPI) concealed using a predetermined protection scheme, and a protection scheme identifier identifying the protection scheme, and transmission means for sending the SUCI to a first network apparatus during a registration procedure, the SUCI being sent for a second network apparatus to de-conceal the SUPI from the SUCI based on the protection scheme used to generate the SUCI.
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公开(公告)号：US11284313B2
公开(公告)日：2022-03-22
申请号：US16617595
申请日：2018-05-25
Applicant: NEC Corporation
Inventor： Anand Raghawa Prasad , Sivakamy Lakshminarayanan , Sivabalan Arumugam , Sheeba Backia Mary Baskaran , Hironori Ito , Toshiyuki Tamura , Hisashi Futaki
Abstract: The present disclosure relates to secure provisioning of UE mobility restriction by extending neighbour relation tables to include mobility restrictions in addition to neighbour cell information and sending neighbour cell restriction information (per UE) to the UE, gNB, UE and gNB. The present invention also provides a method and apparatus and a system for mapping mobility restrictions with TA list and sending the TA list along with the Handover Restriction List during handover.
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3.发明公开公开(公告)号：US20240196218A1
公开(公告)日：2024-06-13
申请号：US18588124
申请日：2024-02-27
Applicant: NEC Corporation
Inventor： Hironori ITO , Anand Raghawa Prasad , Andreas Kunz , Sivabalan Arumugam , Sivakamy Lakshminarayanan , Sheeba Backia Mary Baskaran
IPC: H04W12/106 , H04W12/037 , H04W12/041 , H04W12/08 , H04W36/14 , H04W48/18
CPC classification number: H04W12/106 , H04W12/037 , H04W12/041 , H04W12/08 , H04W36/14 , H04W48/18
Abstract: A communication terminal (10) according to the present disclosure includes: a control unit (12) configured to, in a case of a movement from a communication area formed by the 5GS to a communication area formed by the EPS or a movement from a communication area formed by the EPS to a communication area formed by the 5GS, determine whether or not a communication system forming a communication area at a movement destination can satisfy requirements of services; and a communication unit (11) configured to, when it is determined that the communication system forming the communication area at the movement destination can satisfy the requirements of the services, send a connection request message to the communication system forming the communication area at the movement destination.
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4.发明授权公开(公告)号：US11877148B2
公开(公告)日：2024-01-16
申请号：US17985256
申请日：2022-11-11
Applicant: NEC Corporation
Inventor： Sheeba Backia Mary Baskaran , Sivakamy Lakshminarayanan , Anand Raghawa Prasad , Sivabalan Arumugam , Hironori Ito , Takahito Yoshizawa
Abstract: A communication terminal (10) includes control means for generating a subscription concealed identifier (SUCI) including a subscription permanent identifier (SUPI) concealed using a predetermined protection scheme, and a protection scheme identifier identifying the protection scheme, and transmission means for sending the SUCI to a first network apparatus during a registration procedure, the SUCI being sent for a second network apparatus to de-conceal the SUPI from the SUCI based on the protection scheme used to generate the SUCI.
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公开(公告)号：US11956636B2
公开(公告)日：2024-04-09
申请号：US18080184
申请日：2022-12-13
Applicant: NEC Corporation
Inventor： Hironori Ito , Anand Raghawa Prasad , Andreas Kunz , Sivabalan Arumugam , Sivakamy Lakshminarayanan , Sheeba Backia Mary Baskaran
IPC: H04W12/106 , H04W12/037 , H04W12/041 , H04W12/08 , H04W36/14 , H04W48/18
CPC classification number: H04W12/106 , H04W12/037 , H04W12/041 , H04W12/08 , H04W36/14 , H04W48/18
Abstract: A communication terminal (10) according to the present disclosure includes: a control unit (12) configured to, in a case of a movement from a communication area formed by the 5GS to a communication area formed by the EPS or a movement from a communication area formed by the EPS to a communication area formed by the 5GS, determine whether or not a communication system forming a communication area at a movement destination can satisfy requirements of services; and a communication unit (11) configured to, when it is determined that the communication system forming the communication area at the movement destination can satisfy the requirements of the services, send a connection request message to the communication system forming the communication area at the movement destination.
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Patent Agency Ranking
公开(公告)号：US11722897B2
公开(公告)日：2023-08-08
申请号：US17540455
申请日：2021-12-02
Applicant: NEC Corporation
Inventor： Hironori Ito , Anand Raghawa Prasad , Sivabalan Arumugam , Takahito Yoshizawa , Sivakamy Lakshminarayanan , Sheeba Backia Mary Baskaran
IPC: H04L29/00 , H04W12/106
CPC classification number: H04W12/106
Abstract: A method for integrity protection scheme by a mobile communication device or a core network entity according to a first exemplary aspect of the present disclosure includes configuring settings and parameters for integrity protection for user data with another party; receiving user plane data from the other party, calculating Message Authentication Code for Integrity (MAC-I) for a part of the data and checking integrity of the part of the data.
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公开(公告)号：US11540125B2
公开(公告)日：2022-12-27
申请号：US16494524
申请日：2018-03-16
Applicant: NEC CORPORATION
Inventor： Sheeba Backia Mary Baskaran , Anand Raghawa Prasad , Sivabalan Arumugam , Sivakamy Lakshminarayanan , Hironori Ito , Andreas Kunz
IPC: H04W12/0431 , G06F7/58 , H04L9/32 , H04L12/04 , H04L12/06 , H04W12/041 , H04W12/062
Abstract: Provided is an authentication device capable of generating a master key suited to a UE in a 5GS. The authentication device (10) includes a communication unit (11) configured to, in registration processing of user equipment (UE), acquire UE key derivation function (KDF) capabilities indicating a pseudo random function supported by the UE, a selection unit (12) configured to select a pseudo random function used for generation of a master key related to the UE by use of the UE KDF capabilities, and a key generation unit (13) configured to generate a master key related to the UE by use of the selected pseudo random function.
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公开(公告)号：US11937079B2
公开(公告)日：2024-03-19
申请号：US16650997
申请日：2018-09-27
Applicant: NEC Corporation
Inventor： Hironori Ito , Sivakamy Lakshminarayanan , Anand Raghawa Prasad , Sivabalan Arumugam , Sheeba Backia Mary Baskaran
IPC: H04W12/041 , H04L9/40 , H04W12/06
CPC classification number: H04W12/041 , H04L63/18 , H04W12/06
Abstract: A communication terminal capable of preventing a reduction in security level that is caused at the time of establishing multiple connections via 3GPP Access and Non-3GPP Access. A communication terminal according to the present disclosure includes: a communication unit configured to communicate with gateway devices disposed in a preceding stage of a core network device via an Untrusted Non-3GPP Access; and a key derivation unit configured to derive a second security key used for security processing of a message transmitted using a defined protocol with the gateway device, from a first security key used for security processing of a message transmitted using a defined protocol with the core network device.
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公开(公告)号：US11902776B2
公开(公告)日：2024-02-13
申请号：US18078174
申请日：2022-12-09
Applicant: NEC Corporation
Inventor： Sheeba Backia Mary Baskaran , Anand Raghawa Prasad , Sivabalan Arumugam , Sivakamy Lakshminarayanan , Hironori Ito , Andreas Kunz
IPC: H04W12/0431 , G06F7/58 , H04L9/32 , H04L12/04 , H04L12/06 , H04W12/041 , H04W12/062
CPC classification number: H04W12/0431 , G06F7/582 , H04L9/32 , H04L12/04 , H04L12/06 , H04W12/041 , H04W12/062 , H04L2463/081
Abstract: Provided is an authentication device capable of generating a master key suited to a UE in a 5GS. The authentication device (10) includes a communication unit (11) configured to, in registration processing of user equipment (UE), acquire UE key derivation function (KDF) capabilities indicating a pseudo random function supported by the UE, a selection unit (12) configured to select a pseudo random function used for generation of a master key related to the UE by use of the UE KDF capabilities, and a key generation unit (13) configured to generate a master key related to the UE by use of the selected pseudo random function.
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公开(公告)号：US11246085B2
公开(公告)日：2022-02-08
申请号：US16481275
申请日：2018-01-26
Applicant: NEC Corporation
Inventor： Anand Raghawa Prasad , Sivakamy Lakshminarayanan , Sivabalan Arumugam , Hironori Ito , Andreas Kunz
Abstract: An object is to provide a communication terminal capable of using a newly-generated network slice or service. A communication terminal (10) according to the present disclosure includes a communication unit (11) configured to receive a parameter related to SM-NSSAI (Session Management-Network Slice Selection Assistance Information) from a core network when subscriber information of the communication terminal itself managed in the core network or a location of the communication terminal itself is changed, and a control unit (12) configured to update NSSAI by using the parameter related to the SM-NSSAI, the NSSAI being managed to select a network slice.
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