Apparatus and methods for delivery traffic indication message (DTIM) periods in a wireless network
AssigneeResearch In Motion Limited
InventorsJames Wang, Tom Nagy
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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.
Claims24
An access point comprising:
- a processor able to transmit delivery traffic indication messages at different periods of beacon frames for different wireless client devices associated with said access point.
A wireless client device comprising:
- a memory to store an indication of a preferred period of beacon frames at which to listen to delivery traffic indication messages from an access point when said wireless client device is in power-save mode.
A method in a wireless client device, the method comprising:
- sending an access point a request to listen to delivery traffic indication messages according to a preferred period of beacon frames when in power-save mode.
A method in an access point, the method comprising:
- transmitting delivery traffic indication messages at different periods of beacon frames for different wireless client devices associated with said access point.
Dependencies are inferred from the claim text.