Back to results
US 2014/0155115 A1Published application
Multi-tone wakeup mechanism for a wireless network
AssigneeRobert Bosch GmbH
InventorAbtin Keshavarzian
Life of this patent
Estimating the term…
Abstract
A method of operating a wireless network includes sending a pattern of wakeup tones. Each of the wakeup tones has a different frequency. A sleep mode is periodically awoken from to listen for the wakeup tones. The pattern of wakeup tones is received during the listening. It is decided whether to listen for at least one second tone. The deciding is dependent upon the received pattern of wakeup tones.
Claims20
A method of operating a wireless network, the method including:
- sending a pattern of wakeup tones, each of the wakeup tones having a different frequency;
- periodically waking up from a sleep mode to listen for the wakeup tones;
- receiving the pattern of wakeup tones during the listening;
- deciding whether to listen for at least one second tone, the deciding being dependent upon the received pattern of wakeup tones.
1 more element
A wireless network, comprising:
- a receiver node that includes:
- an arrangement to receive a plurality of tones each at a predefined frequency;
- an energy storage arrangement;
- and
- a control arrangement to operate the receiver node in a sleep mode to conserve energy,
- wherein the receiver node is configured to periodically wake up from the sleep mode to listen for a plurality of wakeup tones, and upon receiving the wakeup tones, listening for at least one second tone.
3 more elements
A wireless node, comprising:
- a power storage arrangement;
- and
- an arrangement to receive a plurality of tones each at a predefined frequency,
- wherein the wireless node is configured to periodically listen for a pattern of wakeup tones, and upon receiving the wakeup tones, listen for at least one second tone, the at least one second tone being one of (i) a tone in a frequency different from the wakeup tones and (ii) a pattern of tones that includes at least one frequency different from the wakeup tones.
1 more element
Dependencies are inferred from the claim text.