SAVING POWER ON HANDSETS BY FILTERING RECEIVED STATUS UPDATES

摘要

In one embodiment, a method for saving power on a mobile device includes receiving an indication of termination of a power-save mode of the mobile device, and requesting presence information for a plurality of peers of a user from a server or a P2P communication network in response to the received indication.

主权项

1. A method comprising:
receiving presence information from a plurality of devices, the plurality of devices including one or more identified devices not registered for regular presence updates; storing of the presence information in a database; and sending of the stored presence information to the one or more identified devices individually upon receiving corresponding requests for the presence information from the one or more identified devices; wherein storing of the presence information in the database comprises: storing a list of peers maintained by an instant messaging (IM) application; selecting a proper subset of peers from the list of peers based on a predefined criterion; storing a presence update for each peer in the proper subset of peers; accessing the list of peers maintained by the instant messaging (IM) application; and requesting the presence update for each peer in the list of peers.