公开(公告)号：US20220264679A1

公开(公告)日：2022-08-18

申请号：US17628306

申请日：2021-04-26

Applicant: NEC Corporation

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

IPC: H04W76/15 ,  H04W76/12 ,  H04W4/021

Abstract: A User Equipment (UE) (3) includes, in a Non-Access Stratum (NAS) message requesting establishment or modification of a protocol data unit (PDU) session, one or both of a first identifier representing a candidate secondary cell (12) for dual connectivity and a second identifier representing a frequency band in which the candidate secondary cell operates. The UE (3) sends the NAS message to a core network (30) via a radio access network (10). This can, for example, allow a radio communication network to provide a UE with a user plane path that includes a radio connection in a specific secondary cell of dual connectivity based on a request from the UE or an application function.

公开(公告)号：US20210274383A1

公开(公告)日：2021-09-02

申请号：US17258323

申请日：2019-07-09

Applicant: NEC Corporation

Inventor： Satoshi KURODA ,  Toshiyuki TAMURA ,  Junya OKABE

IPC: H04W28/06 ,  H04L12/26 ,  H04L12/723 ,  H04W28/02

Abstract: A control apparatus used in a communicating system, comprising: a first controlling part that controls a data communication from a terminal apparatus via a mobile access line using a mobile network and a non-mobile access line not using the mobile network; a measuring part that performs Ping-measures of the mobile access line and of the non-mobile access line, respectively; a determining part that determines whether the mobile access line or the non-mobile access line is available based on the measuring part; and a second control part that controls a data communication from the terminal apparatus via the access line selected based on the determining part.

公开(公告)号：US20160183132A1

公开(公告)日：2016-06-23

申请号：US15057871

申请日：2016-03-01

Applicant: NEC Corporation

Inventor： Toshiyuki TAMURA ,  Junya OKABE

IPC: H04W36/00 ,  H04W68/00 ,  H04W8/12

CPC classification number: H04W68/12 ,  H04W8/12 ,  H04W36/0022 ,  H04W36/06 ,  H04W60/04 ,  H04W68/005

Abstract: It is aimed to provide a mobility management device that can normally provide a UE with a notification of an incoming voice call made when ISR is activated and when a mobile communication device is moving from a location registration area under control of an MME to a location registration area under control of an SGSN. A mobility management device (10) makes an ISR feature operate in collaboration with an SGSN (20). It is assumed that a location registration area (60) managed by the mobility management device (10) exists within a location registration area (50) managed by the SGSN (20), and an incoming voice call is made to a mobile communication device (30) during when the mobile communication device (30) is moving out of the location registration area (60). The mobility management device (10) includes an incoming voice call control unit (11) that, in the above case, sends a response message indicating that the mobile communication device (30) is moving to a switching device (40) and, when an incoming voice call message is sent again from the switching device (40) to a switching device (40) after the lapse of a specified period of time, performs call attempt to the mobile communication device (30).

Abstract translation: 旨在提供一种移动性管理设备，其通常可以向UE提供当ISR被激活时进行的进入语音呼叫的通知，并且当移动通信设备从在MME的控制下的位置登记区域移动到位置登记时 SGSN控制的区域。 移动性管理装置（10）使得与SGSN（20）协同工作的ISR特征。 假设由移动性管理装置（10）管理的位置登记区域（60）存在于由SGSN（20）管理的位置登记区域（50）内，并且向移动通信装置（ 30）当移动通信设备（30）正在移出位置登记区域（60）时。 移动管理装置（10）包括：在上述情况下，发送指示移动通信装置（30）正在移动到切换装置（40）的响应消息的呼入话音呼叫控制部（11） 在经过指定的时间段之后，再次从交换设备（40）向交换设备（40）发送呼入语音呼叫消息，对移动通信设备（30）进行呼叫尝试。

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：US20190303605A1

公开(公告)日：2019-10-03

申请号：US16367812

申请日：2019-03-28

Applicant: NEC CORPORATION

Inventor： Junya OKABE

IPC: G06F21/62 ,  G06F17/22

Abstract: An information processing apparatus extracts one or more strings to be determined from a path name string, and determines necessity of masking for each of the strings to be determined. The necessity of masking is determined based on the appearance number of the string to be determined in a string group extracted from the path name strings of a plurality of files handled by a target system.

公开(公告)号：US20170150478A1

公开(公告)日：2017-05-25

申请号：US15422962

申请日：2017-02-02

Applicant: NEC Corporation

Inventor： Toshiyuki TAMURA ,  Junya OKABE

IPC: H04W68/12 ,  H04W36/00 ,  H04W68/00 ,  H04W8/12

CPC classification number: H04W68/12 ,  H04W8/12 ,  H04W36/0022 ,  H04W36/06 ,  H04W60/04 ,  H04W68/005

Abstract: It is aimed to provide a mobility management device that can normally provide a UE with a notification of an incoming voice call made when ISR is activated and when a mobile communication device is moving from a location registration area under control of an MME to a location registration area under control of an SGSN. A mobility management device (10) makes an ISR feature operate in collaboration with an SGSN (20). It is assumed that a location registration area (60) managed by the mobility management device (10) exists within a location registration area (50) managed by the SGSN (20), and an incoming voice call is made to a mobile communication device (30) during when the mobile communication device (30) is moving out of the location registration area (60). The mobility management device (10) includes an incoming voice call control unit (11) that, in the above case, sends a response message indicating that the mobile communication device (30) is moving to a switching device (40) and, when an incoming voice call message is sent again from the switching device (40) to a switching device (40) after the lapse of a specified period of time, performs call attempt to the mobile communication device (30).

公开(公告)号：US20220272776A1

公开(公告)日：2022-08-25

申请号：US17628701

申请日：2020-10-21

Applicant: NEC Corporation

Inventor： Toshiyuki TAMURA ,  Junya OKABE

IPC: H04W76/11 ,  H04W76/30

Abstract: A radio terminal (1) is configured to assign a Protocol Data Unit (PDU) Session ID that is different from a most recently used PDU Session ID to a new PDU session to be established. This contributes to, for example, avoiding a conflict (or collision) between an uncompleted PDU session release and a new PDU session establishment that are associated with the same PDU Session ID.

公开(公告)号：US20180302871A1

公开(公告)日：2018-10-18

申请号：US16005922

申请日：2018-06-12

Applicant: NEC Corporation

Inventor： Toshiyuki TAMURA ,  Junya OKABE

IPC: H04W60/00 ,  H04W68/02 ,  H04W8/06 ,  H04W48/14

Abstract: A communication system according to an exemplary embodiment of the invention includes an MME (25) that, by movement of a UE (45), performs Tracking Area Update processing that changes a location registration area of the UE (45) and manages the location registration area of the UE (45) before change, and a PGW (75) that sends, to the MME (25), a control signal required to be notified to the UE (45) during execution of the Tracking Area Update processing. When the MME (25) receives the control signal, it sends a response signal indicating that the Tracking Area Update processing is being executed to the PGW (75), and, after completion of the Tracking Area Update processing, the PGW (75) sends the control signal to an MME (35) that manages the location registration area of the UE (45) after change.

公开(公告)号：US20180139721A1

公开(公告)日：2018-05-17

申请号：US15804579

申请日：2017-11-06

Applicant: NEC CORPORATION

Inventor： Toshiyuki TAMURA ,  Junya OKABE

IPC: H04W68/12 ,  H04W68/00 ,  H04W8/12 ,  H04W36/00 ,  H04W60/04

Abstract: It is aimed to provide a mobility management device that can normally provide a UE with a notification of an incoming voice call made when ISR is activated and when a mobile communication device is moving from a location registration area under control of an MME to a location registration area under control of an SGSN. A mobility management device (10) makes an ISR feature operate in collaboration with an SGSN (20). It is assumed that a location registration area (60) managed by the mobility management device (10) exists within a location registration area (50) managed by the SGSN (20), and an incoming voice call is made to a mobile communication device (30) during when the mobile communication device (30) is moving out of the location registration area (60). The mobility management device (10) includes an incoming voice call control unit (11) that, in the above case, sends a response message indicating that the mobile communication device (30) is moving to a switching device (40) and, when an incoming voice call message is sent again from the switching device (40) to a switching device (40) after the lapse of a specified period of time, performs call attempt to the mobile communication device (30).

公开(公告)号：US20170150467A1

公开(公告)日：2017-05-25

申请号：US15310030

申请日：2015-05-07

Applicant: NEC Corporation

Inventor： Toshiyuki TAMURA ,  Junya OKABE

IPC: H04W60/00 ,  H04W48/14 ,  H04W68/02 ,  H04W8/06 ,  H04W64/00

CPC classification number: H04W60/00 ,  H04W8/06 ,  H04W36/0005 ,  H04W48/00 ,  H04W48/14 ,  H04W64/00 ,  H04W68/005 ,  H04W68/02 ,  H04W88/02 ,  H04W88/16 ,  H04W92/24

Abstract: A communication system according to an exemplary embodiment of the invention includes an MME (25) that, by movement of a UE (45), performs Tracking Area Update processing that changes a location registration area of the UE (45) and manages the location registration area of the UE (45) before change, and a PGW (75) that sends, to the MME (25), a control signal required to be notified to the UE (45) during execution of the Tracking Area Update processing. When the MME (25) receives the control signal, it sends a response signal indicating that the Tracking Area Update processing is being executed to the PGW (75), and, after completion of the Tracking Area Update processing, the PGW (75) sends the control signal to an MME (35) that manages the location registration area of the UE (45) after change.