公开(公告)号：US20240334181A1

公开(公告)日：2024-10-03

申请号：US18735364

申请日：2024-06-06

Applicant: NEC Corporation

Inventor： Toshiyuki TAMURA ,  Kundan TIWARI

IPC: H04W8/26 ,  H04W48/20 ,  H04W76/27

CPC classification number: H04W8/26 ,  H04W48/20 ,  H04W76/27

Abstract: The present disclosure relates to synchronizing a temporary identity in the UE and the network when the UE is RRC Inactive state over 3GPP access and temporary identity of the UE is changed over a Non-3GPP access in a scenario when the UE is connected to the same AMF via 3GPP and non-3GPP access.

公开(公告)号：US20240284377A1

公开(公告)日：2024-08-22

申请号：US18568397

申请日：2022-05-18

Applicant: NEC Corporation

Inventor： Kundan TIWARI ,  Toshiyuki TAMURA ,  Iskren IANEV

IPC: H04W60/04 ,  H04W48/18 ,  H04W84/04

CPC classification number: H04W60/04 ,  H04W48/18 ,  H04W84/042

Abstract: [Problem]
This disclosure defines a procedure to solve problem how the NSSRG needs to be handled in some situations
[Solution]
A method of a User Equipment (UE) includes performing communication with a network apparatus and including first Single Network Slice Selection Assistance Information (S-NSSAI) to Requested Network Slice Selection Assistance Information (NSSAI) for a first access. The first S-NSSAI shares Network Slice Simultaneous Registration Group (NSSRG) common to second S-NSSAI of Allowed NSSAI for a second access.

公开(公告)号：US20230284309A1

公开(公告)日：2023-09-07

申请号：US18132665

申请日：2023-04-10

Applicant: NEC Corporation

Inventor： Toshiyuki TAMURA

IPC: H04W76/16 ,  H04W4/24 ,  H04W88/06 ,  H04W88/14 ,  H04W72/04 ,  H04W4/00 ,  H04L12/14 ,  H04M15/00 ,  H04W76/15 ,  H04W76/30 ,  H04W76/14 ,  H04W76/27 ,  H04W36/00 ,  H04W8/08 ,  H04W88/10

CPC classification number: H04W76/16 ,  H04L12/14 ,  H04L12/1403 ,  H04L12/1407 ,  H04M15/66 ,  H04W4/00 ,  H04W4/24 ,  H04W8/08 ,  H04W36/0022 ,  H04W36/0085 ,  H04W72/04 ,  H04W76/14 ,  H04W76/15 ,  H04W76/27 ,  H04W76/30 ,  H04W88/06 ,  H04W88/10 ,  H04W88/14

Abstract: In order to provide a communication system capable of charging control in accordance with a bearer used by a UE even when the UE performs dual connectivity, a communication system according to the present disclosure includes a communication terminal (11) configured to communicate with a communication device (12) and a communication device (13) by using a different radio bearer for each of the communication device (12) and the communication device (13), and a control device (14) configured to determine whether to cause the communication device (12) to measure the traffic of each radio bearer.

公开(公告)号：US20230254813A1

公开(公告)日：2023-08-10

申请号：US18137240

申请日：2023-04-20

Applicant: NEC Corporation

Inventor： Sivapathalingham SIVAVAKEESAR ,  Robert PATERSON ,  Toshiyuki TAMURA ,  Sadafuku HAYASHI

IPC: H04W68/00 ,  H04W76/19 ,  H04W76/27

CPC classification number: H04W68/005 ,  H04W76/19 ,  H04W76/27 ,  H04W36/0055

Abstract: A communication system is disclosed in which am anchor base station receives, from a core network node, downlink data for a communication device. The base station attempts (e.g. by RAN-based paging) to initiate communication with the communication device, and when the communication device does not respond to the attempt to initiate communication, the base station sends a message to the core network node, the message requesting initiation of a paging procedure for the communication device (e.g. S1-based paging).

公开(公告)号：US20220322221A1

公开(公告)日：2022-10-06

申请号：US17628730

申请日：2021-03-18

Applicant: NEC Corporation

Inventor： Iskren IANEV ,  Toshiyuki TAMURA

IPC: H04W48/18 ,  H04W76/15 ,  H04W36/08

Abstract: An AMF apparatus (3) receives a NAS message for requesting a core network to establish or activate a PDU session associated with an allowed network slice identifier, from a UE (4), via a first cell (10) not supporting the allowed network slice identifier and via a first AN node (1) that provides the first cell (10). In response to receiving the NAS message, the AMF apparatus (3) sends to the first AN node (1) a control message that causes the first AN node (1) to move the UE (4) to a second cell (20) that supports the allowed network slice identifier. This can contribute, for example, to enabling an establishment or activation of a PDU session associated with a network slice that is supported only in sparsely (or patchily) placed local cells.

公开(公告)号：US20220295363A1

公开(公告)日：2022-09-15

申请号：US17628302

申请日：2021-04-26

Applicant: NEC Corporation

Inventor： Toshiyuki TAMURA ,  Junya OKABE ,  Kazuhiro CHIBA ,  Kouji SHIMIZU ,  Tomoki NAKAGAWA ,  Takahiro AOKI

IPC: H04W36/00 ,  H04L12/14

Abstract: A Policy Control Function (PCF) apparatus (34) receives information from a Network Exposure Function (NEF) apparatus (35) or an Application Function (AF) apparatus (41) and modifies based on the information a policy including an Index to RAT/Frequency Selection Priority (RFSP index). This can, for example, contribute to enabling a radio communication network to provide a User Equipment (UE) with a user plane path containing a radio connection in a specific cell based on a request from an AF.

公开(公告)号：US20220286951A1

公开(公告)日：2022-09-08

申请号：US17629017

申请日：2021-01-15

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI ,  Toshiyuki TAMURA

IPC: H04W48/18 ,  H04W48/04 ,  H04W60/04 ,  H04W76/15

Abstract: A RAN node apparatus (1) sends to, an AMF (3) in a core network, slice support information indicating a network slice supported by another RAN node (2) that can be used as a secondary node in dual connectivity in which the RAN node apparatus (1) acts as a master node. This can contribute, for example, to allowing the AMF to determine a network slice allowed to a UE, while taking into account a network slice supported by a secondary node of dual connectivity.

公开(公告)号：US20220279436A1

公开(公告)日：2022-09-01

申请号：US17628618

申请日：2021-01-15

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI ,  Toshiyuki TAMURA

IPC: H04W48/20 ,  H04W48/18 ,  H04W76/15 ,  H04W60/04

Abstract: A RAN node apparatus (1) transmits, to a User Equipment (UE) (3), in a cell served by the RAN node apparatus (10), information indicating a network slice supported by another RAN node (2) that can be used as a secondary node in dual connectivity in which the RAN node apparatus acts as a master node. This can contribute, for example, to allowing the UE to know a network slice supported by a potential secondary node of dual connectivity through a potential master node of the dual connectivity.

公开(公告)号：US20220248497A1

公开(公告)日：2022-08-04

申请号：US17629610

申请日：2020-12-18

Applicant: NEC Corporation

Inventor： Toshiyuki TAMURA ,  Tsuyoshi TAKAKURA

IPC: H04W76/34 ,  H04W12/08 ,  H04W12/06

Abstract: In response to revocation of authorization of a first network slice identifier for a User Equipment (UE) (1), an Access and Mobility Management Function (AMF) node (2) initiates a release procedure to release a PDU session associated with the first network slice identifier. This makes it possible, for example, to properly manage a Protocol Data Unit (PDU) session associated with a network slice when authorization for that network slice is revoked.

公开(公告)号：US20220240161A1

公开(公告)日：2022-07-28

申请号：US17721821

申请日：2022-04-15

Applicant: NEC Corporation

Inventor： Iskren IANEV ,  Toshiyuki TAMURA

IPC: H04W48/12 ,  H04W76/27 ,  H04W8/20 ,  H04W8/24 ,  H04W48/02 ,  H04W74/08

Abstract: User equipment, UE, includes: a receiver configured to receive a parameter indicating whether the UE is restricted or authorized for transmission of user data in a message transmitted on Uplink Synchronization Channel, UL-SCH, from an access network node; and a hardware processor configured to process instructions to determine whether the transmission of the user data in the message is restricted or authorized based on the parameter.