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1. 发明申请

WO2004084494A1 AVOIDING DATA LOSS IN PACKET NETWORKS 审中-公开
标题翻译：避免分组网络中的数据丢失
公开(公告)号：WO2004084494A1
公开(公告)日：2004-09-30
申请号：PCT/US2004/008288
申请日：2004-03-17
申请人： QUALCOMM INCORPORATED , ABROL, Nischal , HO, Duncan
发明人： ABROL, Nischal , HO, Duncan
IPC分类号： H04L12/28
CPC分类号： H04W60/00 , H04W8/26 , H04W28/06
摘要： Techniques for avoiding data loss and reducing registration overhead in a wireless packet data communication system are disclosed. In one embodiment, a mobile station (170) adds each connection to a connection list (430) following registration with the PCF (130). The mobile station need not reregister a connection included in the connection list when it again enters the PCF's coverage area. In another embodiment, a PDSN (110) maintains a connection table (330), with one or more connections for each mobile station. The PDSN transmits data to the mobile station along one of the connections. In yet another embodiment, a PDSN transmits on an active connection, if one exists. In yet another embodiment, connections in a connection list or connection table are removed when a corresponding inactivity timer (320) expires. Various other embodiments are also presented. Benefits include allowing mobile stations to travel between PCFs without re-registering, which reduces registration overhead and increases system capacity, and avoidance of data loss from network initiated data directed to a mobile station, resulting in timely delivery of the data and reduction of system resources allocated to retransmission of data.
摘要翻译：公开了一种用于在无线分组数据通信系统中避免数据丢失和减少注册开销的技术。在一个实施例中，移动站（170）在与PCF（130）对齐之后，将每个连接添加到连接列表（430）。当移动台再次进入PCF的覆盖区域时，不需要重新注册包括在连接列表中的连接。在另一个实施例中，PDSN（110）维护连接表（330），其中每个移动站具有一个或多个连接。 PDSN沿着连接之一向移动台发送数据。在另一个实施例中，PDSN在活动连接上发送，如果存在的话。在另一个实施例中，当相应的不活动定时器（320）到期时，连接列表或连接表中的连接被去除。还提出了各种其它实施例。优点包括允许移动台在PCF之间行进而无需重新注册，从而减少注册开销并增加系统容量，并避免从指向移动台的网络启动数据丢失数据，从而及时传送数据并减少系统资源分配给数据重传。

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