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    INTERSYSTEM CHANGE BETWEEN DIFFERENT RADIO ACCESS NETWORKS
    1.
    发明申请
    INTERSYSTEM CHANGE BETWEEN DIFFERENT RADIO ACCESS NETWORKS 有权
    不同无线电接入网络之间的系统间变化

    公开(公告)号：US20150087354A1

    公开(公告)日：2015-03-26

    申请号：US14388855

    申请日：2013-03-15

    Applicant: NEC CORPORATION

    Inventor： Iskren Ianev ,  Yannick Lair ,  Kouhei Gotou

    IPC: H04W60/00 ,  H04W76/02 ,  H04W88/06

    CPC classification number: H04W36/0022 ,  H04W36/0016 ,  H04W36/0061 ,  H04W36/14 ,  H04W60/005 ,  H04W76/15 ,  H04W88/06

    Abstract: A wireless terminal can communicate with two radio access networks (RAN) (304, 306) of different types. The wireless terminal can register simultaneously with a RAN of the first type and a RAN of the second type and can wirelessly connect to a RAN of either the first type or the second type in a connected state. The wireless terminal when registered with both a first RAN and a second RAN and when wirelessly connected to the first RAN in the connected state, receives a mobility signal via the first RAN indicating a RAN of the second type and, in response to receiving the mobility signal and in response to being so registered with the first RAN and second RAN, transmits an access trigger signal (417). The access trigger signal indicates that the wireless terminal is to be connected to the second RAN in the connected state.

    Abstract translation: 无线终端可以与不同类型的两个无线电接入网络（RAN）（304,306）进行通信。 无线终端可以与第一类型的RAN和第二类型的RAN同时注册，并且可以在连接状态下无线地连接到第一类型或第二类型的RAN。 无线终端当与第一RAN和第二RAN同时登记，并且在连接状态下无线连接到第一RAN时，经由指示第二类型的RAN的第一RAN接收移动性信号，并且响应于接收到移动性 并且响应于如此向第一RAN和第二RAN注册，发送接入触发信号（417）。 访问触发信号指示在连接状态下无线终端要连接到第二RAN。

    Wireless terminal and method of operating
    2.
    发明授权
    Wireless terminal and method of operating 有权

    公开(公告)号：US11159999B2

    公开(公告)日：2021-10-26

    申请号：US16673224

    申请日：2019-11-04

    Applicant: NEC CORPORATION

    Inventor： Kouhei Gotou ,  Yannick Lair ,  Iskren Ianev

    IPC: H04W36/14 ,  H04W60/00 ,  H04W88/06 ,  H04W48/18 ,  H04W60/04

    Abstract: A wireless terminal can communicate with a first network of first type and a second network of second different type. The wireless terminal performs a packet-domain attachment to the first network and initiates a ready timer indicating that the wireless terminal is in an attached state and has recently sent data to the first network. The wireless terminal initiates an inter-system change from the first network to the second network whereby the wireless terminal becomes registered to the second network. Advantageously the wireless terminal has means for rendering the ready timer ineffective when the inter-system change is performed. The network apparatus has means for initiating its own ready timer dependent on the attachment occurring, this ready timer also indicating that the wireless terminal is in an attached state and has recently sent data to the first network.

    Radio access system and portable terminal device
    3.
    发明授权
    Radio access system and portable terminal device 有权

    公开(公告)号：US11146942B2

    公开(公告)日：2021-10-12

    申请号：US16691692

    申请日：2019-11-22

    Applicant: NEC CORPORATION

    Inventor： Kouhei Gotou ,  Masashi Kanauchi

    IPC: H04W68/02 ,  H04W8/06 ,  H04W60/00 ,  H04W60/02 ,  H04W48/16 ,  H04W88/06

    Abstract: As a result of ISR being enabled between a portable terminal device and a network which are capable of communicating by using the communication protocols of a plurality of wireless access technologies, the portable terminal device performs position registration processing between the plurality of wireless access technologies and the portable terminal device each time a fixed period of time elapses, and the portable terminal device is able to move between the plurality of wireless access technologies that have already been registered, without conducting new position registration processing. At this time, if there is a possibility of there being a difference in ISR states (activated or not activated) between the portable terminal device and the network, the portable terminal device ignores any instructions issued by the network for ISR to be enabled in the portable terminal device.

    MOBILE STATION, METHOD FOR CONTROLLING MOBILE STATION, MOBILE COMMUNICATION SYSTEM, MOBILITY MANAGEMENT APPARATUS, AND COMPUTER-READABLE MEDIUM
    5.
    发明申请
    MOBILE STATION, METHOD FOR CONTROLLING MOBILE STATION, MOBILE COMMUNICATION SYSTEM, MOBILITY MANAGEMENT APPARATUS, AND COMPUTER-READABLE MEDIUM 有权
    移动站，移动站控制方法，移动通信系统，移动管理装置和计算机可读介质

    公开(公告)号：US20150050924A1

    公开(公告)日：2015-02-19

    申请号：US14374638

    申请日：2012-10-25

    Applicant: NEC Corporation

    Inventor： Kouhei Gotou

    IPC: H04W60/00 ,  H04W36/14 ,  H04W88/02 ,  H04W8/18

    CPC classification number: H04W60/04 ,  H04W8/06 ,  H04W8/18 ,  H04W36/14 ,  H04W60/00 ,  H04W60/005 ,  H04W88/02 ,  H04W88/06

    Abstract: In one embodiment, a mobile station (1) is capable of performing location registration procedures with first and second mobile management units (31 and 32) that respectively correspond to first and second RANs (Radio Access Networks). Further, the mobile station (1) supports ISR (Idle mode Signalling reduction) for reducing location registration procedures caused by reselection between the first RAN (21) and the second RAN (22). Furthermore, the mobile station (1) is configured to deactivate ISR in the mobile station (1) when voice service configuration information stored in the mobile station (1) is updated when the ISR is activated.

    Abstract translation: 在一个实施例中，移动台（1）能够与分别对应于第一和第二RAN（无线电接入网络）的第一和第二移动管理单元（31和32）执行位置注册过程。 此外，移动台（1）支持用于减少由第一RAN（21）和第二RAN（22）之间的重选引起的位置登记过程的ISR（空闲模式信令减少）。 此外，移动台（1）被配置为当ISR被激活时更新存储在移动台（1）中的语音服务配置信息时，在移动台（1）中停用ISR。

    Intersystem change between different radio access networks
    6.
    发明授权
    Intersystem change between different radio access networks 有权

    公开(公告)号：US10419981B2

    公开(公告)日：2019-09-17

    申请号：US16238328

    申请日：2019-01-02

    Applicant: NEC CORPORATION

    Inventor： Iskren Ianev ,  Yannick Lair ,  Kouhei Gotou

    IPC: H04W72/00 ,  H04W36/00 ,  H04W88/06 ,  H04W60/00 ,  H04W76/15 ,  H04W36/14

    Abstract: A wireless terminal can communicate with two radio access networks (RAN) (304, 306) of different types. The wireless terminal can register simultaneously with a RAN of the first type and a RAN of the second type and can wirelessly connect to a RAN of either the first type or the second type in a connected state. The wireless terminal when registered with both a first RAN and a second RAN and when wirelessly connected to the first RAN in the connected state, receives a mobility signal via the first RAN indicating a RAN of the second type and, in response to receiving the mobility signal and in response to being so registered with the first RAN and second RAN, transmits an access trigger signal (417). The access trigger signal indicates that the wireless terminal is to be connected to the second RAN in the connected state.

    Intersystem change between different radio access networks
    8.
    发明授权
    Intersystem change between different radio access networks 有权
    不同无线电接入网络之间的系统间变化

    公开(公告)号：US09549384B2

    公开(公告)日：2017-01-17

    申请号：US14388855

    申请日：2013-03-15

    Applicant: NEC CORPORATION

    Inventor： Iskren Ianev ,  Yannick Lair ,  Kouhei Gotou

    IPC: H04W72/00 ,  H04W60/00 ,  H04W36/00 ,  H04W88/06 ,  H04W76/02 ,  H04W36/14

    CPC classification number: H04W36/0022 ,  H04W36/0016 ,  H04W36/0061 ,  H04W36/14 ,  H04W60/005 ,  H04W76/15 ,  H04W88/06

    Abstract: A wireless terminal can communicate with two radio access networks (RAN) (304, 306) of different types. The wireless terminal can register simultaneously with a RAN of the first type and a RAN of the second type and can wirelessly connect to a RAN of either the first type or the second type in a connected state. The wireless terminal when registered with both a first RAN and a second RAN and when wirelessly connected to the first RAN in the connected state, receives a mobility signal via the first RAN indicating a RAN of the second type and, in response to receiving the mobility signal and in response to being so registered with the first RAN and second RAN, transmits an access trigger signal (417). The access trigger signal indicates that the wireless terminal is to be connected to the second RAN in the connected state.

    Abstract translation: 无线终端可以与不同类型的两个无线电接入网络（RAN）（304,306）进行通信。 无线终端可以与第一类型的RAN和第二类型的RAN同时注册，并且可以在连接状态下无线地连接到第一类型或第二类型的RAN。 无线终端当与第一RAN和第二RAN同时登记，并且在连接状态下无线连接到第一RAN时，经由指示第二类型的RAN的第一RAN接收移动性信号，并且响应于接收到移动性 并且响应于如此向第一RAN和第二RAN注册，发送接入触发信号（417）。 访问触发信号指示在连接状态下无线终端要连接到第二RAN。

    WIRELESS TERMINAL AND METHOD OF OPERATING
    9.
    发明申请
    WIRELESS TERMINAL AND METHOD OF OPERATING 有权
    无线终端和操作方法

    公开(公告)号：US20150085824A1

    公开(公告)日：2015-03-26

    申请号：US14390933

    申请日：2013-03-15

    Applicant: NEC Corporation

    Inventor： Kouhei Gotou ,  Yannick Lair ,  Iskren Ianev

    IPC: H04W36/14

    CPC classification number: H04W36/14 ,  H04W48/18 ,  H04W60/00 ,  H04W60/04 ,  H04W88/06

    Abstract: A wireless terminal can communicate with a first network of first type and a second network of second different type. The wireless terminal performs a packet-domain attachment to the first network and initiates a ready timer indicating that the wireless terminal is in an attached state and has recently sent data to the first network. The wireless terminal initiates an inter-system change from the first network to the second network whereby the wireless terminal becomes registered to the second network. Advantageously the wireless terminal has means for rendering the ready timer ineffective when the inter-system change is performed. The network apparatus has means for initiating its own ready timer dependent on the attachment occurring, this ready timer also indicating that the wireless terminal is in an attached state and has recently sent data to the first network.

    Abstract translation: 无线终端可以与第一类型的第一网络和第二不同类型的第二网络进行通信。 无线终端执行到第一网络的分组域附着，并且启动就绪定时器，指示无线终端处于附接状态，并且最近已将数据发送到第一网络。 无线终端发起从第一网络到第二网络的系统间改变，由此无线终端注册到第二网络。 有利地，无线终端具有用于在执行系统间改变时使就绪定时器无效的装置。 网络装置具有根据发生的附件启动其自己的就绪定时器的装置，该就绪定时器还指示无线终端处于附接状态并且最近已将数据发送到第一网络。

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