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    Method and apparatus for handover
    2.
    发明授权
    Method and apparatus for handover 有权
    切换方法和装置

    公开(公告)号：US09521605B2

    公开(公告)日：2016-12-13

    申请号：US14737245

    申请日：2015-06-11

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Sung-Min Oh ,  Sook-Yang Kang ,  Hyun-Seo Park ,  Ae-Soon Park

    IPC: H04W36/00 ,  H04W36/30 ,  H04B7/02 ,  H04B7/04 ,  H04W72/12 ,  H04W36/06

    CPC classification number: H04W36/30 ,  H04B7/022 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0695 ,  H04B7/088 ,  H04W36/06 ,  H04W72/1231

    Abstract: A method and apparatus for handover is provided. In a network environment in which a plurality of beams are provided within a base station, a terminal measures signal strength of a serving beam and signal strength of a target beam and transmits a measurement report message when a first condition or a second condition is satisfied. The base station determines inter-beam coordinated scheduling when the signal strength of the serving beam and target beam satisfy the first condition, and determines handover between beams when the signal strength of the serving beam and target beam satisfy the second condition. The base station transmits a message for commanding handover to the terminal when the handover between beams is determined. The terminal then stops communicating with the serving beam and performs handover to the target beam.

    Abstract translation: 提供了一种用于切换的方法和装置。 在其中在基站内设置多个波束的网络环境中，终端测量服务波束的信号强度和目标波束的信号强度，并且当满足第一条件或第二条件时发送测量报告消息。 当服务光束和目标光束的信号强度满足第一条件时，基站确定光束间协调调度，并且当服务光束和目标光束的信号强度满足第二条件时，确定光束之间的切换。 当确定光束之间的切换时，基站向终端发送用于命令切换的消息。 终端然后停止与服务波段的通信并执行到目标波束的切换。

    Handover method and apparatus
    5.
    发明授权
    Handover method and apparatus 有权
    切换方法和装置

    公开(公告)号：US09497683B2

    公开(公告)日：2016-11-15

    申请号：US14417012

    申请日：2013-07-24

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Hyun Seo Park ,  Sung-Min Oh ,  Ae-Soon Park ,  Eunah Kim ,  Sook Yang Kang ,  JaeSheung Shin ,  Pyeong Jung Song

    IPC: H04W36/24 ,  H04W36/08 ,  H04W36/30 ,  H04W36/36

    CPC classification number: H04W36/24 ,  H04W36/08 ,  H04W36/30 ,  H04W36/36

    Abstract: A UE does not immediately perform handover after receiving a handover command from a serving base station, but instead backups that message and continuously compares the signal strength of a serving base station and the signal strength of a target base station and performs a handover to the target base station at the best timing when handover is required. Once the timing of handover is determined, the UE transmits a handover indication message to the serving base station, and thereafter the UE performs a handover to the target base station.

    Abstract translation: 在从服务基站接收到切换命令之后，UE不立即执行切换，而是备份该消息，并且连续地比较服务基站的信号强度和目标基站的信号强度并执行到目标的切换 基站需要切换时的最佳时间。 一旦确定了切换的定时，则UE向服务基站发送切换指示消息，此后，UE对目标基站进行切换。

    Method for processing exceptional case of establishing default bearer in mobile communication system and device therefor
    6.
    发明授权
    Method for processing exceptional case of establishing default bearer in mobile communication system and device therefor 有权
    处理在移动通信系统及其设备中建立默认承载的异常情况的方法

    公开(公告)号：US09565710B2

    公开(公告)日：2017-02-07

    申请号：US14959522

    申请日：2015-12-04

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Mi Jeong Yang ,  Jae Wook Shin ,  Ae-Soon Park

    IPC: H04W76/02 ,  G06F15/173 ,  H04W8/02 ,  H04W72/04 ,  H04W80/04

    CPC classification number: H04W76/18 ,  H04W8/02 ,  H04W72/0406 ,  H04W80/04

    Abstract: There are provided a method for processing an exceptional case of establishing a default bearer and a device therefor in order to solve a problem in that a user equipment cannot actually receive an IP service by accessing a packet network while failing in establishing the default bearer in a mobile communication system. A method for processing an exceptional case of establishing a default bearer in a mobility management entity includes: receiving a network attachment request from a user equipment; transmitting a network attachment acceptance including an activation request of the default bearer to the user equipment in response to the network attachment request; and cancelling a network attachment procedure when a completion response to the activation request of the default bearer is not received from the user equipment within a predetermined time.

    Abstract translation: 提供了一种用于处理建立默认承载的异常情况的方法及其装置，以便解决用户设备通过访问分组网络而实际上不能接收IP服务的问题，同时在 移动通信系统。 一种用于处理在移动性管理实体中建立默认承载的例外情况的方法包括：从用户设备接收网络附着请求; 响应于所述网络附着请求，向所述用户设备发送包括所述默认承载的激活请求的网络附件接受; 以及在预定时间内没有从所述用户设备接收到对所述默认承载的激活请求的完成响应时，取消网络附接过程。

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