发明名称 |
METHOD AND SYSTEM FOR MAINTAINING PACKET DATA CONNECTIVITY IN A WIRELESS COMMUNICATIONS NETWORK |
摘要 |
A method and system for maintaining packet data connectivity in a wireless communications network are presented. A mobile station detects a change from a first packet control function (PCF) to a second PCF. The first PCF is connected to a first packet data service node (PDSN). The second PCF is connected to a second PDSN. The mobile station consults a database configured to map at least one previously visited PCF to a servicing PDSN. Based at least in part on the consulting, the mobile station observes one from among a plurality of predetermined origination patterns, wherein an origination pattern defines origination functions to be performed by the mobile station. As such, zombie PPP and mobile IP instances may be detected and handled.
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申请公布号 |
WO03047209(A1) |
申请公布日期 |
2003.06.05 |
申请号 |
WO2002US25747 |
申请日期 |
2002.08.13 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
ABROL, NISCHAL;LIOY, MARCELLO |
分类号 |
H04L12/46;H04L12/56;H04L29/06;H04L29/08;H04W8/08;H04W36/12;H04W76/04;H04W80/04;H04W92/02;(IPC1-7):H04L29/06 |
主分类号 |
H04L12/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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