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公开(公告)号:US20240314565A1
公开(公告)日:2024-09-19
申请号:US18676878
申请日:2024-05-29
Applicant: NEC Corporation
Inventor: Linghang FAN , Toshiyuki TAMURA , Iskren IANEV
Abstract: New methods are proposed to detect misbehaving UEs based on 5GS. The methods allow the network to react accurately and efficiently to deal with misbehaving UE(s).
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公开(公告)号:US20240260112A1
公开(公告)日:2024-08-01
申请号:US18578394
申请日:2022-07-12
Applicant: NEC CORPORATION
Inventor: Kundan TIWARI , Toshiyuki TAMURA , Iskren IANEV
Abstract: A method performed by a radio terminal includes receiving, from a core network, a reject message related to a first access type with information including maximum number of Protocol Data Unit (PDU) Session per network slice reached, and requesting a PDU session via a second access type.
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公开(公告)号:US20230276392A1
公开(公告)日:2023-08-31
申请号:US18017294
申请日:2021-12-27
Applicant: NEC Corporation
Inventor: Iskren IANEV , Toshiyuki Tamura , Kundan Tiwari
Abstract: The disclosure is addressing the service access to disjoint network slices. It proposes solutions for on demand registration to a disjoint network slice(s) and a switch between disjoint network slices with minimum interruption. This allows for isolation between the network slices leading to improved 5G security and integrity in the data exchange.
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公开(公告)号:US20230093775A9
公开(公告)日:2023-03-23
申请号:US17154790
申请日:2021-01-21
Applicant: NEC Corporation
Inventor: Genadi VELEV , Iskren IANEV , Toshiyuki TAMURA
Abstract: The invention describes a method for dynamic switching between a control plane data transmission and user plane data transmission avoiding the Detach and consecutive re-attach procedure or TAU procedure. In particular the decision for switch between the different transmission schemes is based on various criteria like the size of the data packet or on total amount of data, etc.
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公开(公告)号:US20220369110A1
公开(公告)日:2022-11-17
申请号:US17626964
申请日:2020-12-15
Applicant: NEC Corporation
Inventor: Linghang FAN , Toshiyuki TAMURA , Iskren IANEV
Abstract: New methods are proposed to detect misbehaving UEs based on 5GS. The methods allow the network to react accurately and efficiently to deal with misbehaving UE(s).
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36.
公开(公告)号:US20220360670A1
公开(公告)日:2022-11-10
申请号:US17626959
申请日:2020-11-06
Applicant: NEC Corporation
Inventor: Shubhranshu SINGH , Toshiyuki TAMURA , Iskren IANEV
IPC: H04M15/00
Abstract: This disclosure proposes a network function node in a core network, comprising: means for receiving, from User Equipment, UE, a non access stratum, NAS, message including identity information for the UE, and a plurality of user identity information, each of which includes a user identifier for a user that uses the UE; and means for sending, to a policy control and charging function node in the core network, the plurality of the user identity information for creating a Policy and Charging Control, PCC, rule based on the plurality of the user identity information.
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公开(公告)号:US20220303934A1
公开(公告)日:2022-09-22
申请号:US17606143
申请日:2020-04-24
Applicant: NEC Corporation
Inventor: Iskren IANEV , Toshiyuki TAMURA
Abstract: The present disclosure proposes combined registration for mobile terminals with multiple SIM subscription from the same PLMN. A mobile terminal with two or more SIM subscriptions from the same PLMN registers for all SIM subscriptions to the same AMF or for each SIM subscription, to different AMFs, or to different RATs via a single combined registration procedure. A combined deregistration procedure is also disclosed in which the UE can deregister for all SIM subscriptions in a single combined deregistration procedure.
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38.
公开(公告)号:US20220272531A1
公开(公告)日:2022-08-25
申请号:US17627230
申请日:2020-12-15
Applicant: NEC Corporation
Inventor: Iskren IANEV , Toshiyuki TAMURA
IPC: H04W12/06 , H04W12/088 , H04W12/71
Abstract: The present disclosure proposes a solution for monitoring, controlling and enforcement of the number of the UEs per Network Slice quota for Network Slices subject to Network Slice Specific Authentication and Authorisation (NSSAA). It proposes a new Network Slice Quota (NSQ) service and service operations for Network Slice quota subscription, monitoring, update and notification.
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公开(公告)号:US20220264505A1
公开(公告)日:2022-08-18
申请号:US17628310
申请日:2021-03-18
Applicant: NEC Corporation
Inventor: Iskren IANEV , Toshiyuki TAMURA
IPC: H04W60/00
Abstract: An AMF apparatus (3) receives a registration request message from a UE (3) via a RAN node (1). In response to receiving the registration request message, the AMF apparatus (3) sends to the UE (4) via the RAN node (1) a registration accept message indicating a registration area of the UE (4) and a first list of at least one conditionally allowed network slice identifier. The registration area is a list of at least one tracking area. Each conditionally allowed network slice identifier is not available in every part of the registration area, but is available in at least one particular cell or at least one particular tracking area included in the registration area. This can contribute, for example, to allowing a UE to easily utilize a network slice that is supported only in sparsely placed local cells.
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公开(公告)号:US20210337380A1
公开(公告)日:2021-10-28
申请号:US16625555
申请日:2018-06-19
Applicant: NEC CORPORATION
Inventor: Iskren IANEV , Toshiyuki TAMURA
Abstract: User equipment performing communication with a core network node by using network slices obtained by logically dividing a network includes: means for sending information related to security of one network slice; and means for sending identity information of the one network slice in a secure method, based on a request to send information in the secure method sent from the core network node based on the sent information.
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