Clock synchronization over a shared medium
First Claim
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1. A method for communicating among stations in a network, the method comprising:
- providing repeated beacon transmissions from at least some of the stations including a first station, where the first station is assigned to a first level;
assigning any stations that can reliably receive transmissions from the first station to a second level;
assigning to each of one or more higher levels any stations not assigned to any of the preceding levels that can reliably receive transmissions from the preceding level; and
synchronizing timing information at each station in a given level according to transmissions received from at least one station in the preceding level.
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Abstract
Communicating among stations in a network includes providing repeated beacon transmissions from at least some of the stations including a first station. The first station is assigned to a first level. Any stations that can reliably receive transmissions from the first station are assigned to a second level. Any stations not assigned to any of the preceding levels that can reliably receive transmissions from the preceding level are assigned to each of one or more higher levels. Timing information at each station in a given level is synchronized according to transmissions received from at least one station in the preceding level.
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Citations
23 Claims
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1. A method for communicating among stations in a network, the method comprising:
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providing repeated beacon transmissions from at least some of the stations including a first station, where the first station is assigned to a first level; assigning any stations that can reliably receive transmissions from the first station to a second level; assigning to each of one or more higher levels any stations not assigned to any of the preceding levels that can reliably receive transmissions from the preceding level; and synchronizing timing information at each station in a given level according to transmissions received from at least one station in the preceding level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for communicating among stations in a network, the method comprising:
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providing repeated beacon transmissions from at least some of the stations including a first station, where the first station is assigned to a first level; for each given station other than the first station, determining a station from which transmissions can be reliably received that has the lowest level, and assigning the given station to a level that is one higher than the level of the determined station; and synchronizing timing information at each station in a given level according to transmissions received from at least one station in the preceding level. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A system for communicating among stations in a network, the system comprising:
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a first station assigned to a first level; a first set of one or more stations that can each reliably receive transmissions from the first station assigned to a second level; and one or more additional sets of one or more stations that can reliably receive transmissions from at least one station in the preceding level, each set assigned to a given level configured to synchronize timing information according to transmissions received from at least one station in the preceding level.
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Specification