| 摘要 |
A method for a network system to send location service request to a network user is provided. The method includes receiving a network client initiated location request including information associated with a first event and information associated with a second event. The method further includes processing the location request. Additionally, if the second event is determined to have occurred by the network system, the network system sends an event message to the network user including information associated with the first event. Moreover, the method includes returning a second receipt acknowledgment of the event message to the network client. In an alternative embodiment, a method for a network system to send a cancellation of a previous deferred location request to a network user is provided.
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