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    Data forwarding support in dual connectivity
    15.
    发明授权
    Data forwarding support in dual connectivity 有权

    公开(公告)号：US10945128B2

    公开(公告)日：2021-03-09

    申请号：US15524753

    申请日：2015-10-09

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Tsunehiko Chiba ,  Henri Markus Koskinen

    IPC: H04W12/04 ,  H04W76/15 ,  H04W36/00 ,  H04W88/06 ,  H04W92/20 ,  H04W12/00

    Abstract: Data forwarding may be useful in many communication systems. Thus, for example, data forwarding support may be useful in dual connectivity in, for example, the third generation partnership project (3GPP) and more particularly to dual connectivity with enabled downlink (DL) data back forwarding. A method can include receiving, by a first network node, an indication indicating that for at least one split bearer, data received prior to the indication is to be forwarded to a second network node. The indication can also indicate that the at least one split bearer should be kept or maintained at the first network node. The method can also include, in response to the received indication, forwarding the data for the at least one split bearer received prior to the indication to the second network node.

    Efficient secondary cell group change procedure for dual connectivity
    16.
    发明授权
    Efficient secondary cell group change procedure for dual connectivity 有权

    公开(公告)号：US10462841B2

    公开(公告)日：2019-10-29

    申请号：US15542492

    申请日：2015-01-14

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Tsunehiko Chiba

    IPC: H04L12/56 ,  H04W76/34 ,  H04W76/15

    Abstract: Certain embodiments of the invention generally relate to mobile communications networks. For example, some embodiments relate to secondary cell group change procedure(s) for dual connectivity. A method may include receiving, at a network node, a secondary network node modification required message comprising secondary cell group configuration information for one or more secondary cell group data radio bearer type changes. The method may also include deciding to reject at least one of the one or more secondary cell group data radio bearer type changes. The method may further include sending a secondary network node modification request comprising an indication that the at least one secondary cell group data radio bearer type change is rejected by the network node, and that release of at least one or more secondary cell group data radio bearers is to be performed.

    Method and apparatus for performing handover and re-establishment of connections
    20.
    发明授权
    Method and apparatus for performing handover and re-establishment of connections 有权
    用于执行切换和重新建立连接的方法和装置

    公开(公告)号：US09386483B2

    公开(公告)日：2016-07-05

    申请号：US14175747

    申请日：2014-02-07

    Applicant: NOKIA SOLUTIONS AND NETWORKS OY

    Inventor： Tsunehiko Chiba ,  Srinivasan Selvaganapathy

    IPC: H04W4/00 ,  H04W36/00 ,  H04W36/32 ,  H04W76/02

    CPC classification number: H04W36/0016 ,  H04L5/0098 ,  H04W36/0072 ,  H04W36/32 ,  H04W56/0045 ,  H04W76/15 ,  H04W76/19

    Abstract: A method and apparatus can be configured to detect that a signaling strength of a first network entity has dropped below a threshold. The method can also include transmitting a measurement report to the first network entity. The method can also include receiving radio-resource-control reconfiguration information from the first network entity. The method can also include transmitting a scheduling request to a second network entity, wherein a random-access-channel procedure is avoided.

    Abstract translation: 一种方法和装置可以被配置为检测第一网络实体的信令强度已经降到阈值以下。 该方法还可以包括向第一网络实体发送测量报告。 该方法还可以包括从第一网络实体接收无线电资源控制重配置信息。 该方法还可以包括向第二网络实体发送调度请求，其中避免随机接入信道过程。

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