Wireless Mesh Access Node Multicast Group Update Mechanism
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Solution Overview
Problem
In wireless mesh networks, there is a lack of efficient methods for updating multicast group information of client devices, which is crucial for proper multicast operation, as routers need to know the multicast membership of client devices to route data effectively.
Innovation Solution
The method involves access nodes determining the multicast group information of connected client devices and providing routing updates to upstream access nodes and gateways, ensuring that this information is included within the routing updates to facilitate accurate data forwarding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multicast group information is not included in routing updates, then routing update traffic volume is reduced, but multicast data routing efficiency deteriorates
Solution Approach 1:
The patent combines multicast group information with routing update messages, so that multicast membership data is transmitted along with routing information in the same communication protocol data units. This merging eliminates the need for separate multicast information transmission channels, thereby improving multicast routing efficiency without significantly increasing overall network traffic volume.
2Measurement precision
If multicast group information is updated frequently, then multicast routing accuracy is improved, but network overhead increases
Solution Approach 1:
The patent implements a feedback mechanism where access nodes monitor changes in multicast group membership and trigger routing update transmissions only when changes occur. This event-driven approach ensures that multicast routing information remains accurate and up-to-date while avoiding unnecessary periodic updates, thereby reducing network overhead and energy consumption associated with frequent unnecessary transmissions.
Data Source
AI summary
Systems, methods and apparatuses for updating multicast group information of a client device of a wireless mesh network are disclosed. One method includes an access node of the wireless mesh network determining multicast group information of the client device that is connected to the access node, and the access node providing routing updates to upstream access nodes and a first upstream gateway, wherein the multicast group information of the client device is included within the routing updates of the client device.