Synchronization between wireless devices while saving power
First Claim
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1. A method to operate a wireless device in an ad hoc network, comprising:
- operating the wireless device in a discoverable mode to enable discovery by neighbor wireless devices and to discover neighbor wireless devices passively; and
operating the wireless device in an active discovery mode to actively discover neighbor wireless devices which are in the active discovery mode or the discoverable mode.
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Abstract
A wireless device in an ad hoc network detects other wireless devices within radio range and establishes synchronization with the detected wireless devices. The wireless device operates in a power save mode and wakes up, or turns on, periodically or on demand to implement discoverability. A received probe request packet or beacon packet contains information which allows the receiving wireless device to discover the transmitting wireless device. The wireless device may operate in a discoverable mode or in an active discovery mode.
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Citations
20 Claims
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1. A method to operate a wireless device in an ad hoc network, comprising:
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operating the wireless device in a discoverable mode to enable discovery by neighbor wireless devices and to discover neighbor wireless devices passively; and operating the wireless device in an active discovery mode to actively discover neighbor wireless devices which are in the active discovery mode or the discoverable mode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wireless device comprising:
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a computing device; a radio; and a wireless module logically connected to the computing device and to the radio, the wireless module comprising a processor programmed with instructions for; operating the wireless device in a discoverable mode to enable discovery by neighbor wireless devices and to discover neighbor wireless devices passively; and operating the wireless device in an active discovery mode to actively discover neighbor wireless devices which are in the active discovery mode or the discoverable mode. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer-readable medium programmed with instructions for executing a method to operate a wireless device in an ad hoc network, comprising:
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operating the wireless device in a discoverable mode to enable discovery by neighbor wireless devices and to discover neighbor wireless devices passively; and operating the wireless device in an active discovery mode to actively discover neighbor wireless devices which are in the active discovery mode or the discoverable mode. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification