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    Enhanced mobility robustness optimization
    1.
    发明授权
    Enhanced mobility robustness optimization 有权

    公开(公告)号：US09894571B2

    公开(公告)日：2018-02-13

    申请号：US14890644

    申请日：2013-05-17

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Bernhard Wegmann ,  Ingo Viering ,  Richard Waldhauser ,  Krzysztof Kordybach ,  Yi Zhi Yao

    IPC: H04W36/00 ,  H04W24/02 ,  H04W76/02

    CPC classification number: H04W36/0083 ,  H04W24/02 ,  H04W76/19

    Abstract: Methods, apparatus and computer program products are disclosed for enhancing mobility robustness optimization in self optimizing networks. Neighbor relation information indicating relations between a handover source cell and candidate handover target cell(s), each including a first counter indicating events of an unsuccessful handover of a user equipment from the handover source cell to one candidate handover target cell, and a second counter indicating events of connection re-establishment attempt of the user equipment to the candidate handover target cell after an unsuccessful handover to another cell. A first candidate handover target cell to which handover of the user equipment was unsuccessful and a second candidate handover target cell to which the user equipment has re-established a connection, out of the candidate handover target cells, are determined. The first counter and/or the second counter of the neighbor relation information concerning the determined first and second candidate handover target cells is updated.

    Detection and inhibition of multiple consecutive inter-RAT ping-pong handovers
    2.
    发明授权
    Detection and inhibition of multiple consecutive inter-RAT ping-pong handovers 有权

    公开(公告)号：US09867092B2

    公开(公告)日：2018-01-09

    申请号：US14759665

    申请日：2013-01-18

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Bernhard Wegmann ,  Krzysztof Kordybach

    IPC: H04W36/00 ,  H04W36/14

    CPC classification number: H04W36/0083 ,  H04W36/14

    Abstract: There are provided measures for detection and inhibition of multiple consecutive inter-RAT ping-pong handovers (also called handover bounces). Such measures exemplarily include detecting multiple consecutive ping-pong handovers of a communication endpoint between two radio access technologies, wherein a ping-pong handover includes a handover from one of said two radio access technologies to the other of said two radio access technologies and a handover from the other of said two radio access technologies to the one of said two radio access technologies, and causing immediate inhibition of certain handovers of said communication endpoint.

    Improvements for Evaluating Handover Failures
    3.
    发明申请
    Improvements for Evaluating Handover Failures 审中-公开
    评估切换失败的改进

    公开(公告)号：US20150031363A1

    公开(公告)日：2015-01-29

    申请号：US14375449

    申请日：2012-01-30

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Krzysztof Kordybach ,  Richard Waldhauser ,  Bernhard Wegmann ,  Ingo Viering

    IPC: H04W36/00

    CPC classification number: H04W36/0094 ,  H04W24/04 ,  H04W36/0083

    Abstract: Apparatuses and methods are provided by which a user equipment receives information enabling handover and/or apparatus type identification related to a handover, and stores the information enabling handover and/or apparatus type identification. In case of a connection failure, the stored information enabling handover and/or apparatus type identification may later be used to evaluate the cause for the connection failure.

    Abstract translation: 提供了一种设备和方法，用户设备通过该设备和方法接收能够进行与切换相关的切换和/或设备类型识别的信息，并存储启用切换和/或设备类型识别的信息。 在连接失败的情况下，可以稍后使用存储的启用切换和/或设备类型识别的信息来评估连接失败的原因。

    Method, Device and Computer Program for Reporting Radio Link Failures (RLF) for Cellular Communication Based on Communication Links Enabled on at Least Two Different Access Technologies
    4.
    发明申请
    Method, Device and Computer Program for Reporting Radio Link Failures (RLF) for Cellular Communication Based on Communication Links Enabled on at Least Two Different Access Technologies 审中-公开
    用于报告无线电链路故障（RLF）的方法，设备和计算机程序，用于基于在至少两种不同接入技术上启用的通信链路的蜂窝通信

    公开(公告)号：US20150131454A1

    公开(公告)日：2015-05-14

    申请号：US14399236

    申请日：2012-05-11

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Bernhard Wegmann ,  Richard Waldhauser ,  Kordybach Krzysztof

    IPC: H04W24/10 ,  H04L12/24

    CPC classification number: H04W24/10 ,  H04L41/069 ,  H04W24/02 ,  H04W76/19 ,  H04W88/06

    Abstract: The present invention proposes a User Equipment UE, which includes a transceiver module for cellular communication based on communication links enabled on at least two different access technologies, and a control module, wherein the control module is configured to detect a first event, namely a connection failure on a communication link established using a first access technology, to start, triggered by the detection, a timer, to discern a second event, namely reconnection of a communication link established after the first event and using a first or a second access technology, to stop, triggered by the discerning, the timer and to compose a report, wherein the report includes at least an information element indicative of the time counted by the timer. Likewise, the present invention encompasses a corresponding method and a respective computer program product.

    Abstract translation: 本发明提出了一种用户设备UE，其包括用于基于在至少两种不同接入技术上启用的通信链路的蜂窝通信的收发器模块和控制模块，其中所述控制模块被配置为检测第一事件，即连接 使用第一接入技术建立的通信链路发生故障，由检测触发启动定时器，以识别第二事件，即，在第一事件之后建立的通信链路的重新连接并使用第一或第二接入技术， 由识别器，定时器触发并组成报告，其中报告至少包括指示由定时器计数的时间的信息元素。 同样，本发明包括相应的方法和相应的计算机程序产品。

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