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    DETECTING LOSS OF IP CONTINUITY WHEN TRANSITIONING BETWEEN DIFFERENT NETWORKS
    49.
    发明授权
    DETECTING LOSS OF IP CONTINUITY WHEN TRANSITIONING BETWEEN DIFFERENT NETWORKS 有权
    检测不同的网络之间的连续性IP损失转移

    公开(公告)号：EP2652990B1

    公开(公告)日：2015-08-19

    申请号：EP11808432.6

    申请日：2011-12-13

    申请人： Qualcomm Incorporated

    发明人： PAYYAPPILLY, Ajith Tom ,  KHATRI, Shrawan K. ,  ZHAO, Suli

    IPC分类号： H04W36/00 ,  H04W76/06

    CPC分类号： H04W36/0033 ,  H04W76/38

    摘要： Aspects of the present disclosure provide techniques for preventing loss of IP continuity when transitioning between networks. Certain aspects provide methods that generally include initiating a first timer upon attempting to transition from a first RAT network to a second RAT network during an IP session and initiating a second timer if a channel in the second RAT network is successfully acquired. According to aspects, a device may transfer context of the IP session to the second RAT network if a session is successfully negotiated in the second network prior to expiration of the second timer and the first and second networks share a common core network for IP services.

    METHODS AND APPARATUS FOR HANDLING FAILURE AND RETRY MECHANISMS DURING eHRPD PRE-REGISTRATION
    50.
    发明公开
    METHODS AND APPARATUS FOR HANDLING FAILURE AND RETRY MECHANISMS DURING eHRPD PRE-REGISTRATION 审中-公开
    方法和设备，用于处理故障和NEUVERSUCHSMECHANISMEN的过程中的eHRPD预登记

    公开(公告)号：EP2769582A1

    公开(公告)日：2014-08-27

    申请号：EP12783454.7

    申请日：2012-10-15

    申请人： Qualcomm Incorporated

    发明人： ZHAO, Suli ,  BALASUBRAMANIAN, Srinivasan ,  PAYYAPPILLY, Ajith Tom ,  KUMAR, Vaibhav ,  JU, Shian-De

    IPC分类号： H04W36/00

    CPC分类号： H04W36/0016 ,  H04W76/19 ,  H04W88/06

    摘要： Aspects disclosed herein relate to effectively handling failure and retry mechanisms during pre-registration for an eHRPD optimized handover. In one example, a UE may be equipped to detect one or more instances of failure during a pre-registration procedure as part of an optimized handover process. The UE may further be equipped to perform one or more pre-registration retry processes based on the detected one or more instances of failure. In one aspect, the one or more instances of failure may include any combination of a permanent LTE connection failure, a temporary LTE connection failure, a session negotiation failure, a virtual connection failure when bringing up a data call, a link control protocol (LCP) failure, etc.