公开(公告)号：US12143921B2

公开(公告)日：2024-11-12

申请号：US17577799

申请日：2022-01-18

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Sung Hwan Won

IPC: H04W48/10 ,  H04W48/02

Abstract: Systems, methods, apparatuses, and computer program products for steering terminals to a different network in case of a disaster. A method may include sending, to a network node of a first network, a first message including an indication that a disaster condition applies to a second network when the disaster condition applies to the second network. The method may also include sending a second message to the network node of the first network including an indication that the disaster condition no longer applies to the second network when the disaster condition no longer applies to the second network.

公开(公告)号：US12052628B2

公开(公告)日：2024-07-30

申请号：US17281778

申请日：2018-10-04

Applicant: Nokia Technologies Oy

Inventor： Sung Hwan Won

IPC: H04W36/32 ,  H04W12/03 ,  H04W12/037 ,  H04W12/041 ,  H04W12/108 ,  H04W36/00 ,  H04W60/06

CPC classification number: H04W36/32 ,  H04W12/03 ,  H04W12/037 ,  H04W12/041 ,  H04W12/108 ,  H04W36/0038 ,  H04W60/06

Abstract: Method and apparatus for deriving a cryptographic protection to a new initial non-access stratum, NAS, message for a target network from an existing security context in an idle mode inter-system change when one or more of conditions a) to d) is met, and for deriving a mapped 5G NAS security context from a source cellular network that is an EPS security context maintained by a source MME of the EPS, in an idle mode inter-system change, when one or more of conditions 1) to 4) is met, optionally after receiving a REGISTRATION REQUEST message without integrity protection and encryption.

公开(公告)号：US11729737B2

公开(公告)日：2023-08-15

申请号：US17167129

申请日：2021-02-04

Applicant: Nokia Technologies Oy

Inventor： Sung Hwan Won

IPC: H04W60/04 ,  H04W76/34 ,  H04W76/50 ,  H04W76/11 ,  H04W48/16 ,  H04W84/04

CPC classification number: H04W60/04 ,  H04W48/16 ,  H04W76/11 ,  H04W76/34 ,  H04W76/50 ,  H04W84/042

Abstract: Methods, apparatuses, and computer program products are provided for handling session requests for emergency services. Updated closed access group (CAG) configuration information can be provided to user equipment (UE) requesting an emergency session with a public land mobile network (PLMN), and the UE may update their CAG information or discontinue its session request. When the PLMN determines that the UE's session request to the PLMN was sent via a non-CAG cell, the PLMN may then determine if the session request is for emergency services, in which case the PLMN may decide to not clear or reject the session request, while if the PLMN determines that the session request via the non-CAG cell is for non-emergency services, then the PLMN may clear or reject the session request. When a session request is rejected by the PLMN, the UE may enter a deregistered state and conduct a search for a new PLMN.

公开(公告)号：US11570704B2

公开(公告)日：2023-01-31

申请号：US17036729

申请日：2020-09-29

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Sung Hwan Won ,  György Tamás Wolfner

IPC: H04W48/18 ,  H04W60/00

Abstract: A method comprising: determining, by a user equipment, that a non-closed access group cell is available to the user equipment in a public land mobile network, wherein the public land mobile network is identified by a public land mobile network identity and the user equipment is only allowed to access the public land mobile network via one or more closed access group cells; displaying the public land mobile network identity to a user; receiving user input selecting the public land mobile network identity; and transmitting a registration request to the public land mobile network identified by the public land mobile network identity.

公开(公告)号：US11477727B2

公开(公告)日：2022-10-18

申请号：US16945297

申请日：2020-07-31

Applicant: Nokia Technologies Oy

Inventor： Sung Hwan Won

IPC: H04W48/18 ,  H04W60/04 ,  H04W76/18 ,  H04W48/02 ,  H04W48/16

Abstract: Methods and apparatus, including computer program products, are provided for handling non-integrity protected reject messages in non-public networks. In some example embodiments, there may be provided an apparatus including at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least: receive, from a network function in a standalone non-public network (SNPN), a reject message, wherein information in the reject message indicates that the apparatus is not allowed to access the SNPN by subscription; and add the identity of the SNPN in a list of forbidden SNPNs associated with an access via which the apparatus sent a request and subsequently received the reject message.

公开(公告)号：US12213194B2

公开(公告)日：2025-01-28

申请号：US17621354

申请日：2019-06-21

Applicant: Nokia Technologies Oy

Inventor： Sung Hwan Won ,  Bruno Landais ,  Devaki Chandramouli ,  Alessio Casati

IPC: H04W76/15 ,  H04W72/53 ,  H04W72/56 ,  H04W76/18 ,  H04W76/36

Abstract: A method, apparatus and computer program product are provided herein to provide a Protocol Data Unit (PDU) session priority parameter. For example, a method is provided that comprises identifying a need in a user equipment (UE) for establishing a new protocol data unit PDU session. The method also includes evaluating whether to establish a new PDU session and determining whether to establish a new PDU session based on a PDU session priority parameter when a maximum number of PDU sessions the UE can establish in the network is reached.

公开(公告)号：US12137408B2

公开(公告)日：2024-11-05

申请号：US17256476

申请日：2018-07-02

Applicant: Nokia Technologies Oy

Inventor： Sung Hwan Won

IPC: H04W48/16 ,  H04W48/08 ,  H04W48/18

Abstract: A user equipment operating in a connected mode includes a first layer, a second layer, and a third layer. The first layer generates a request to send a non-initial non-access stratum (NAS) message over a first connection that operates according to a first radio access technology (RAT). The second layer determines whether access to the first connection is barred for the non-initial NAS message. The first layer selects a connection to deliver the non-initial NAS message between the first connection and a second connection that operates according to a second RAT in response to access to the first connection being barred. In some cases, the non-initial NAS message is a mobile originated short message service (SMS) message or an uplink NAS transport message. In some cases, the first layer is an NAS layer and the second layer is a radio resource control layer.

公开(公告)号：US12082286B2

公开(公告)日：2024-09-03

申请号：US17291153

申请日：2018-11-14

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Sung Hwan Won

IPC: H04W76/27 ,  H04W76/19

CPC classification number: H04W76/19 ,  H04W76/27

Abstract: An apparatus comprising: at least one processor: and at least one memory including computer program code: the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: receive (602) a fallback indication from a radio resource control layer: invoke (604) a service request procedure: and set (606, 608) at least one of a service type information element and an uplink data status information element in a service request message.

公开(公告)号：US20240205773A1

公开(公告)日：2024-06-20

申请号：US18591962

申请日：2024-02-29

Applicant: Nokia Technologies Oy

Inventor： Sung Hwan Won ,  Devaki Chandramouli

IPC: H04W36/14 ,  H04W28/16 ,  H04W36/00 ,  H04W36/30 ,  H04W76/16 ,  H04W88/08

CPC classification number: H04W36/14 ,  H04W28/16 ,  H04W36/0033 ,  H04W36/30 ,  H04W36/0022 ,  H04W76/16 ,  H04W88/08

Abstract: In some example embodiments, there may be provided a method that includes receiving, at a user equipment while being served by a first system and during protocol data unit session establishment or modification procedure, a message including an access point name aggregate maximum bit rate value; and when there is an inter-system change from the first system to the second system, setting, at the user equipment, the access point name aggregate maximum bit rate value of a session management context for the second system to the received access point name aggregate maximum bit rate value received while being served by the first system. Related systems, methods, and articles of manufacture are also described.

公开(公告)号：US20240089838A1

公开(公告)日：2024-03-14

申请号：US17932129

申请日：2022-09-14

Applicant: Nokia Technologies Oy

Inventor： Manish BHALLA ,  Sung Hwan Won

IPC: H04W48/16 ,  H04L41/34

CPC classification number: H04W48/16 ,  H04L41/34

Abstract: Methods, systems, apparatuses, and computer program products provide network function selection for user equipment via a gateway network node. In an implementation, a single-network slice selection assistance information (S-NSSAI) list is received from a user equipment (UE). Additionally, it is determined whether a network node does not support a non-access stratum node selection function for the UE. Based on a determination that the network node does not support the non-access stratum node selection function for the UE, an initial UE message configured with an information element for the S-NSSAI list is generated, and the initial UE message is caused to be transmitted to a gateway network node to select a core network function for the UE.