发明名称 Method, system and computer program to enable querying of resources in a certain context by definition of SIP even package
摘要 Disclosed is a system and a method to provide event notification. The method operates an event server (20) with a subscriber unit (12). The method includes formulating a query; sending a subscription request message to the event server, the subscription request message comprising the query; responsive to a receipt of the subscription request message, parsing the query; and accepting the subscription request if the query is successfully parsed and understood, and if appropriate resource data is available to the event server to determine a result of the query.
申请公布号 US8903820(B2) 申请公布日期 2014.12.02
申请号 US200410874946 申请日期 2004.06.23
申请人 Nokia Corporation 发明人 Trossen Dirk;Pavel Dana
分类号 G06F7/00;G06F17/30;H04L12/24;H04L29/08;H04L29/06;H04W12/06;H04W28/16;H04W80/10 主分类号 G06F7/00
代理机构 Harrington & Smith 代理人 Harrington & Smith
主权项 1. A method, comprising: receiving a session initiation protocol subscribe message at a session initiation protocol event server from a user device, the session initiation protocol subscribe message being for a subscription to an event package comprised of a single event, where the session initiation protocol subscribe message comprises a message header specifying a resource query event identifier and a message body that comprises a resource query formulated in a query language, the resource query operating on resource data available at at least one of the session initiation protocol event server and through the session initiation protocol event server; determining if the subscription can be granted by parsing semantic information contained in the message body of the session initiation protocol subscribe message and, based on the parsed semantic information, determining using at least an aggregation of existing resource state information a list of resources that are a priori unknown at the user device and that fulfill constraints of the resource query during a lifetime of the subscription, where the list of resources that are a priori unknown at the user device comprises a plurality of resources; sending the determined list of resources that fulfill constraints of the resource query to the user device as a start state of the subscription; and during the lifetime of the subscription sending a notification to the user device in response to a change occurring in the determined list of resources.
地址 Espoo FI