Multiplex communications – Communication over free space – Signaling for performing battery saving
Reexamination Certificate
2011-08-23
2011-08-23
Pérez-Gutiérrez, Rafael (Department: 2617)
Multiplex communications
Communication over free space
Signaling for performing battery saving
C370S474000, C370S329000, C370S487000, C370S389000, C370S338000, C370S343000, C455S418000, C455S432300, C455S574000, C455S041200, C455S296000
Reexamination Certificate
active
08005032
ABSTRACT:
An access point is to transmit delivery traffic indication messages at different periods of beacon frames for different wireless client devices associated with the access point. A client device may store an indication of a preferred period of beacon frames at which to listen to delivery traffic indication messages when in power save mode. The client device may adjust its preferred period according to predefined considerations, for example a charge level of a battery to power the client device and/or an expected usage model for the client device. A client device may negotiate its preferred period with the access point.
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Nagy Tom
Wang James
Arevalo Joseph
Integral Intellectual Property Inc.
Paton Miriam
Perez-Gutierrez Rafael
Research In Motion Limited
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