DECT Network Clustering via Multicast Probe and Point-to-Point TCP
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Solution Overview
Problem
DECT network clustering in prior art requires high network bandwidth due to its reliance on broadcast technology, leading to poor DECT experience when wireless coverage is limited.
Innovation Solution
A DECT network clustering method that uses multicast probe messages and point-to-point communication to reduce bandwidth requirements, involving a DECT host sending a multicast command to a router, receiving and forwarding a multicast probe message, and establishing a TCP channel with the DECT device through status declaration information and connection requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If broadcast technology is used for DECT network clustering, then device discovery and connection can be achieved, but network bandwidth consumption increases significantly
Solution Approach 1:
The patent segments the clustering communication into two phases: a multicast probe phase for device discovery and a point-to-point status declaration phase for actual connection establishment. This segmentation allows the system to use efficient multicast only when needed for discovery, while using targeted point-to-point communication for the actual data exchange, thereby reducing overall bandwidth consumption compared to continuous broadcasting.
Solution Approach 2:
The patent introduces a router as an intermediary that receives multicast probe messages from DECT devices and selectively forwards them to relevant DECT hosts. This intermediary mechanism enables efficient device discovery without requiring all hosts to continuously broadcast, as the router mediates the communication by distributing probe messages only to appropriate targets, reducing unnecessary bandwidth consumption.
2Adaptability or versatility
If broadcast technology is used for clustering, then all devices can be notified, but the network bandwidth requirement becomes excessively high
Solution Approach 1:
The patent implements dynamic communication mode selection where the system transitions from a static broadcast approach to a dynamic approach that uses multicast for initial device discovery and then switches to point-to-point communication for status declaration and connection establishment. This dynamic adaptation allows the system to maintain broad clustering coverage while significantly reducing bandwidth consumption by using targeted communication for the majority of operations.
Solution Approach 2:
The patent changes the communication parameter from broadcast (one-to-all) to multicast (one-to-selected) and then to point-to-point (one-to-one) based on the operational phase. By changing the communication parameter dynamically according to whether device discovery or connection establishment is needed, the system achieves adaptability while reducing bandwidth requirements.
3Loss of energy
If multicast probe messages are used instead of broadcast, then bandwidth consumption is reduced, but additional protocol complexity is introduced
Solution Approach 1:
The patent implements self-service mechanisms where DECT devices automatically send multicast probe messages to discover available hosts, and hosts automatically respond with point-to-point status declaration information. The TCP connection establishment is also handled automatically without manual intervention. This self-service approach reduces the operational complexity for users while the underlying protocol uses efficient multicast and point-to-point communication to minimize bandwidth consumption.
Data Source
AI summary
A DECT network clustering method includes sending, by a DECT host to a router, a multicast command that declares joining a specified multicast group; sending, by a DECT device to the router, a multicast probe message sent to a target multicast group; receiving, by the router, the multicast command and the multicast probe message, and sending, to the DECT host according to the multicast command, the multicast probe message; receiving, by the DECT host, the multicast probe message, and sending status declaration information to the DECT device; receiving, by the DECT device, the status declaration information, and initiating a TCP connection request to the DECT host in a point-to-point manner; and receiving, by the DECT host, the connection request from the DECT device, and establishing a TCP channel with the DECT device.