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21. 发明申请

US20090093259A1 LOCATION AND TIME BASED FILTERING OF BROADCAST INFORMATION 有权
标题翻译：基于位置和时间的广播信息过滤
公开(公告)号：US20090093259A1
公开(公告)日：2009-04-09
申请号：US12244654
申请日：2008-10-02
申请人： Stephen W. Edge , Andreas K. Wachter , Prasanna Kannan , Charles N. Lo
发明人： Stephen W. Edge , Andreas K. Wachter , Prasanna Kannan , Charles N. Lo
IPC分类号： H04W24/00
CPC分类号： H04H60/51 , H04H20/61 , H04H60/40 , H04H60/53 , H04H60/65 , H04W4/021 , H04W4/027 , H04W4/029 , H04W4/06 , H04W4/50
摘要： Techniques for sending and receiving broadcast information are described. In an aspect, broadcast metadata may be generated for broadcast information and may include location and time criteria used by terminals to filter the broadcast information. Each location and time criterion may include (i) a location criterion given by a target location and a presence or absence requirement and (ii) a time criterion given by a time period in which the location criterion applies. A terminal may receive the broadcast metadata prior to or with the broadcast information, obtain location and time criteria from the broadcast metadata, and filter the broadcast information based on the location and time criteria. The terminal may evaluate each location and time criterion by determining its location within a specified time period and determining whether its location is within or outside a specified target location, as indicated by the presence or absence requirement.
摘要翻译：描述用于发送和接收广播信息的技术。在一方面，可以为广播信息生成广播元数据，并且可以包括终端用于过滤广播信息的位置和时间标准。每个位置和时间标准可以包括（i）由目标位置给出的位置标准和存在或不存在要求，以及（ii）由适用位置标准的时间段给出的时间标准。终端可以在广播信息之前或之上接收广播元数据，从广播元数据获得位置和时间标准，并且基于位置和时间标准来过滤广播信息。终端可以通过在指定的时间段内确定其位置并确定其位置是否在指定的目标位置之内或之外，如存在或不存在要求所指示，来评估每个位置和时间标准。

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