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1. 发明授权

US08665721B2 Systems, methods, and computer readable media for maintaining packet data protocol (PDP) context while performing data offload 有权
标题翻译：用于在执行数据卸载时维护分组数据协议（PDP）上下文的系统，方法和计算机可读介质
公开(公告)号：US08665721B2
公开(公告)日：2014-03-04
申请号：US13032613
申请日：2011-02-22
申请人： Gibson Soon Teck Ang , Thomas Gschwendtner , Jie Wang
发明人： Gibson Soon Teck Ang , Thomas Gschwendtner , Jie Wang
IPC分类号： H04L12/26 , H04H20/71 , H04W4/00
CPC分类号： H04L65/1066 , H04L43/10 , H04W28/085 , H04W76/22 , H04W76/25 , H04W88/16
摘要： Systems, methods, and computer readable media for maintaining packet data protocol (PDP) context while performing data offload are disclosed. According to one aspect, a method for maintaining PDP context while performing data offload includes detecting a data offload condition wherein a UE for which a first network node is maintaining a PDP context is sending or receiving data using a data path that does not include the first network node. While the data offload condition exists, packets are sent from a source other than the UE to the first network node so as to cause the first network node to maintain the PDP context for the UE. In one embodiment, a node interposed between the UE and the first network node periodically sends dummy packets or heart beat packets to the first network node on behalf of the UE, which may include packets that appear to come from the UE.
摘要翻译：公开了用于在执行数据卸载时维持分组数据协议（PDP）上下文的系统，方法和计算机可读介质。根据一个方面，一种用于在执行数据卸载时维护PDP上下文的方法包括：检测数据卸载条件，其中第一网络节点正在维护PDP上下文的UE正在使用不包括第一网络的数据路径来发送或接收数据网络节点。在存在数据卸载条件的情况下，将数据包从UE之外的源发送到第一网络节点，以使第一网络节点维持UE的PDP上下文。在一个实施例中，插入在UE和第一网络节点之间的节点周期性地向代表UE的第一网络节点发送虚拟分组或心跳分组，其可以包括看起来来自UE的分组。

2. 发明申请

US20120213073A1 SYSTEMS, METHODS, AND COMPUTER READABLE MEDIA FOR MAINTAINING PACKET DATA PROTOCOL (PDP) CONTEXT WHILE PERFORMING DATA OFFLOAD 有权
标题翻译：用于维护分组数据协议（PDP）的系统，方法和计算机可读介质执行数据上传时
公开(公告)号：US20120213073A1
公开(公告)日：2012-08-23
申请号：US13032613
申请日：2011-02-22
申请人： Gibson Soon Teck Ang , Thomas Gschwendtner , Jie Wang
发明人： Gibson Soon Teck Ang , Thomas Gschwendtner , Jie Wang
IPC分类号： H04L12/26
CPC分类号： H04L65/1066 , H04L43/10 , H04W28/085 , H04W76/22 , H04W76/25 , H04W88/16
摘要： Systems, methods, and computer readable media for maintaining packet data protocol (PDP) context while performing data offload are disclosed. According to one aspect, a method for maintaining PDP context while performing data offload includes detecting a data offload condition wherein a UE for which a first network node is maintaining a PDP context is sending or receiving data using a data path that does not include the first network node. While the data offload condition exists, packets are sent from a source other than the UE to the first network node so as to cause the first network node to maintain the PDP context for the UE. In one embodiment, a node interposed between the UE and the first network node periodically sends dummy packets or heart beat packets to the first network node on behalf of the UE, which may include packets that appear to come from the UE.
摘要翻译：公开了用于在执行数据卸载时维持分组数据协议（PDP）上下文的系统，方法和计算机可读介质。根据一个方面，一种用于在执行数据卸载时维护PDP上下文的方法包括：检测数据卸载条件，其中第一网络节点正在维护PDP上下文的UE正在使用不包括第一网络的数据路径来发送或接收数据网络节点。在存在数据卸载条件的情况下，将数据包从UE之外的源发送到第一网络节点，以使第一网络节点维持UE的PDP上下文。在一个实施例中，插入在UE和第一网络节点之间的节点周期性地向代表UE的第一网络节点发送虚拟分组或心跳分组，其可以包括看起来来自UE的分组。

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