Switching PANs while maintaining parent/child relationships
First Claim
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1. A method for switching PANs (Personal Area Networks), wherein a first parent node and at least one child node are joined to a first PAN, comprising:
- maintaining, by the first parent node, timing synchronization with the first PAN;
identifying, by the first parent node, a second PAN;
obtaining, by the first parent node, timing synchronization information for the second PAN;
maintaining, by the first parent node, timing synchronization with both the first PAN and the second PAN;
transmitting, by the first parent node, a message to the at least one child node, wherein the message includes synchronization information for the second PAN;
switching, by the first parent node, from the first PAN to the second PAN; and
maintaining, by the first parent node, a parent-child relationship with the at least one child node.
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Abstract
Systems and methods for managing nodes in mesh networks are provided. A parent node may switch PANs and coordinate the switch with its child nodes. The parent node and its child nodes may maintain timing synchronization information for a current PAN and a new PAN. The parent node and its child nodes may switch to the new PAN using the same switching time.
103 Citations
16 Claims
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1. A method for switching PANs (Personal Area Networks), wherein a first parent node and at least one child node are joined to a first PAN, comprising:
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maintaining, by the first parent node, timing synchronization with the first PAN; identifying, by the first parent node, a second PAN; obtaining, by the first parent node, timing synchronization information for the second PAN; maintaining, by the first parent node, timing synchronization with both the first PAN and the second PAN; transmitting, by the first parent node, a message to the at least one child node, wherein the message includes synchronization information for the second PAN; switching, by the first parent node, from the first PAN to the second PAN; and maintaining, by the first parent node, a parent-child relationship with the at least one child node. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for switching PANs (Personal Area Networks), wherein a parent node and a first child node are joined to a first PAN, comprising:
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maintaining, by the first child node, timing synchronization with the first PAN; receiving, by the first child node, a message from the parent node, wherein the message includes synchronization information for a second PAN and a switching time; maintaining, by the first child node, timing synchronization with both the first PAN and the second PAN; switching, by the first child node, from the first PAN to the second PAN at the switching time; and maintaining, by the first child node, a parent-child relationship with the parent node in the second PAN. - View Dependent Claims (9, 10)
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11. A network comprising:
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a first parent node; a first child node; and a second child node, wherein the first parent node has a parent-child relationship with the first child node and the second child node in a first PAN (Personal Area Network); wherein the first parent node is operable for; identifying a second PAN; obtaining timing synchronization information for the second PAN; maintaining timing synchronization with both the first PAN and the second PAN; transmitting a message to the first child node and the second child node that includes synchronization information for the second PAN and a switching time; and switching to the second PAN at the switching time. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification