SYSTEM AND METHOD FOR SYNCHRONIZING TDMA MESH NETWORKS
First Claim
1. A communications system, comprising:
- a plurality of Time Division Multiple Access (TDMA) mesh networks, each comprising a plurality of wireless nodes;
each plurality of wireless nodes within a respective TDMA mesh network comprising a transmitter and receiver that communicate on a primary and at least one secondary frequency and use a TDMA epoch that is divided into at least a beacon interval using the primary frequency and a digital data interval using both the primary and secondary frequencies, wherein the wireless nodes are synchronized to each other such that the start of TDMA epochs for each TDMA mesh network overlap and have the same TDMA epoch duration or an integer multiple thereof.
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Accused Products
Abstract
A communications system includes a plurality of Time Division Multiple Access (TDMA) mesh networks formed by a plurality of wireless nodes. Each plurality of wireless nodes within a respective TDMA mesh network comprises a transmitter and receiver that communicate on a primary and optionally at least one secondary frequency and use a TDMA epoch that is divided into at least a beacon interval using the primary frequency and a digital data interval using the primary and secondary frequencies. The wireless nodes are synchronized to each other such that the start of TDMA epochs for each TDMA mesh network overlap and have the same TDMA epoch duration or an integer multiple thereof.
53 Citations
25 Claims
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1. A communications system, comprising:
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a plurality of Time Division Multiple Access (TDMA) mesh networks, each comprising a plurality of wireless nodes; each plurality of wireless nodes within a respective TDMA mesh network comprising a transmitter and receiver that communicate on a primary and at least one secondary frequency and use a TDMA epoch that is divided into at least a beacon interval using the primary frequency and a digital data interval using both the primary and secondary frequencies, wherein the wireless nodes are synchronized to each other such that the start of TDMA epochs for each TDMA mesh network overlap and have the same TDMA epoch duration or an integer multiple thereof. - View Dependent Claims (2, 3, 4)
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5. A communications system, comprising:
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a plurality of Time Division Multiple Access (TDMA) mesh networks, each comprising a plurality of wireless nodes; each plurality of wireless nodes within a respective TDMA mesh network comprising a transmitter and receiver that communicate on a primary and at least one secondary frequency and use a TDMA epoch that is divided into at least a beacon interval using the primary frequency and a digital data interval using both the primary and secondary frequencies, wherein the beacon interval within a TDMA mesh network falls within the digital data interval of another TDMA mesh network such that the beacon transmissions of each TDMA mesh network do not collide. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A method for synchronizing Time Division Multiple Access (TDMA) mesh networks, which comprises:
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allocating a primary frequency and at least one secondary frequency within a plurality of TDMA mesh networks, each having a plurality of wireless nodes and communicating with each other using a TDMA epoch that is divided into at least a beacon interval using the primary frequency and a digital data interval using both the primary and secondary frequencies; and synchronizing the plurality of TDMA mesh networks with each other by overlapping the start of TDMA epochs for each TDMA mesh network, wherein each TDMA mesh network has the same TDMA epoch duration or an integer multiple thereof. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method for synchronizing Time Division Multiple Access (TDMA) mesh networks, which comprises:
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allocating a primary frequency and at least one secondary frequency within a plurality of TDMA mesh networks, each having a plurality of wireless nodes and communicating with each other using a TDMA epoch that is divided into at least a beacon interval using the primary frequency and a digital data interval using both the primary and secondary frequencies; and forming the beacon interval within each TDMA mesh network to fall within the digital data interval of the other TDMA mesh networks such that the beacon transmissions of each TDMA mesh network do not collide with those beacon transmissions of the other TDMA mesh networks. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification