LOWER POWER DISCOVERY AND WAKE UP USING SERVICE SET IDENTIFIER PROBABILISTIC SCANNING SYNCHRONIZATION VERIFICATION AND OPTIONAL SENSOR
First Claim
1. A method for low power discovery and wakeup comprising:
- performing probalistic channel scanning for a wakeup trigger based on sensor information;
determining if wakeup and/or synchronization is required by a Bluetooth device equipped with an 802.11 interface; and
conserving power in the Bluetooth device by initiating wakeup and/or synchronization of the Bluetooth device only when required.
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Accused Products
Abstract
Processes to achieve low power discovery and wake-up in the presence of desired 802.11 coverage are disclosed. In one aspect, probabilistic scanning for 802.11 SSID triggers is provided. In another aspect, the 802.11 Access Point (AP) is equipped with a Bluetooth inquiring device, which initiates the wake-up process with a special inquiry access code (IAC). The special IAC can comprise the AP'"'"'s 802.11 channel. Additional optional sensors (GPS, Gyroscope, odometer, etc) are provided such that probabilistic scanning reduces power consumption and improves the likelihood that an 802.11 channel scan will find a desired SSID. A Bluetooth inquiry allows a discovery process to either wake-up immediately, or ascertain the need for host wake-up by exchanging further information with the AP. Probabilistic scanning allows the use of sensors and historical or pre-loaded information to improve the probability that 802.11 scanning is not required on individual channels, further driving down power needs.
44 Citations
35 Claims
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1. A method for low power discovery and wakeup comprising:
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performing probalistic channel scanning for a wakeup trigger based on sensor information; determining if wakeup and/or synchronization is required by a Bluetooth device equipped with an 802.11 interface; and conserving power in the Bluetooth device by initiating wakeup and/or synchronization of the Bluetooth device only when required. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A processor for low power discovery and wakeup, the processor configured to:
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perform probalistic channel scanning for a wakeup trigger based on sensor information; determine if wakeup and/or synchronization is required by a Bluetooth device equipped with an 802.11 interface; and conserve power in the Bluetooth device by initiating wakeup and/or synchronization of the Bluetooth device only when required. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A wireless communications device, comprising:
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a processor for performing probalistic channel scanning for a wakeup trigger based on sensor information and determining if wakeup and/or synchronization is required by a Bluetooth device equipped with an 802.11 interface; and a power management circuit for conserving power in the Bluetooth device by initiating wakeup and/or synchronization of the Bluetooth device only when required. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. An apparatus for low power discovery and wakeup comprising:
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means for performing probalistic channel scanning for a wakeup trigger based on sensor information and determining if wakeup and/or synchronization is required by a Bluetooth device equipped with an 802.11 interface; and means for power management for conserving power in the Bluetooth device by initiating wakeup and/or synchronization of the Bluetooth device only when required. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. A computer program product, comprising:
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a computer-readable medium comprising; code for performing probalistic channel scanning for a wakeup trigger based on sensor information; code for determining if wakeup and/or synchronization is required by a Bluetooth device equipped with an 802.11 interface; and code for conserving power in the Bluetooth device by initiating wakeup and/or synchronization of the Bluetooth device only when required. - View Dependent Claims (30, 31, 32, 33, 34, 35)
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Specification