SYSTEMS AND METHODS FOR HIERARCHICAL TIME SOURCE USAGE IN NEAR-ME AREA NETWORK DISCOVERY AND SYNCHRONIZATION
First Claim
1. A wireless device in an ad-hoc wireless communication network comprising:
- a processor configured to determine a discovery interval, based at least in part on an offset and an external time based on a hierarchy of external timing sources; and
a receiver configured to scan for messages from a wireless network during the discovery interval.
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Accused Products
Abstract
Methods, devices, and computer program products for hierarchical time source usage in near-me area network discovery and synchronization are described herein. In one aspect, a method for determining a discovery period using a hierarchy of external timing sources is provided. The method includes receiving an external timing signal from one or more external timing sources, and then using a hierarchy of external timing sources to determine which external timing source to use. The method further provides determining an offset from that external timing source, and using the external timing source and the offset to determine a discovery interval, in which to attempt to locate a near-me area network (NAN), such as a Social-WiFi network.
25 Citations
30 Claims
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1. A wireless device in an ad-hoc wireless communication network comprising:
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a processor configured to determine a discovery interval, based at least in part on an offset and an external time based on a hierarchy of external timing sources; and a receiver configured to scan for messages from a wireless network during the discovery interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for using a hierarchy of timing sources to determine a discovery interval, the method comprising:
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searching for external timing sources; if one or more external timing sources are found; ordering the one or more external timing sources based at least on a hierarchy; determining an offset; and calculating a discovery interval, based at least on the ordered external timing sources and the offset. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 28, 29, 30)
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22. An apparatus for wireless communications comprising:
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means for searching for external timing sources; if one or more external timing sources are found; means for ordering the one or more external timing sources based at least on a hierarchy; means for determining an offset; and means for calculating a discovery interval, based at least on the ordered external timing sources and the offset. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification