专利名称：System and method for maintaining packet
protocol context
发明人：Suzuki, Takashi申请号：EP06125181.5申请日：20061130公开号：EP1928143A1公开日：20080604
专利附图：
摘要：A system and method for maintaining a packet protocol context, such as a PDP(Packet Data Protocol) context, is provided. A mobile device communicates over a packetprotocol context. If there has been no data activity over the packet protocol context for
a timeout duration, then the network may deactivate the packet protocol context. Themobile device can re-establish the packet protocol context; however, excessively re-establishing the packet protocol context places a burden on the network. According toan embodiment of the application, the mobile device determines the timeout duration,for example by measuring the timeout duration. Upon data inactivity for a time periodnear the timeout duration, the mobile device transmits a packet over the packet protocolcontext so as to maintain the packet protocol context. Accordingly, the load on thenetwork can be reduced by achieving a suitable frequency of short data transmissionfrom the mobile device.
申请人：Research In Motion Limited
地址：295 Phillip Street Waterloo, Ontario N2L 3W8 CA
国籍：CA
代理机构：Rickard, David John
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