Battery Powered Device Network Protocol for Subtree Management
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Solution Overview
Problem
Conventional network protocols are not optimized for battery powered devices (BPD) in wireless networks, leading to excessive power consumption and shortened operational lifetimes due to the management of large and complex subtrees.
Innovation Solution
A custom network protocol is implemented that is specifically configured and optimized for BPD nodes, allowing only smaller and simpler subtrees, which reduces power consumption by simplifying node functions such as discovery, messaging, and loop management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional network protocols are used to manage large and complex subtrees in wireless networks, then network coverage and node connectivity are improved, but battery powered device (BPD) nodes consume excessive power and their operational lifetime is shortened
Solution Approach 1:
The patent segments the network management functions by creating a separate BPD-specific network protocol layer that operates independently from the conventional MPD-optimized protocol. This segmentation allows BPD nodes to use a simplified protocol for their specific needs while MPD nodes continue using the full-featured conventional protocol, thus reducing power consumption for BPD nodes without sacrificing overall network coverage capability.
Solution Approach 2:
The patent applies local quality by tailoring the network protocol characteristics to the specific requirements of different node types. The BPD-optimized protocol uses simplified discovery mechanisms, reduced messaging overhead, and optimized routing algorithms specifically suited for battery-powered devices, while MPD nodes utilize the more comprehensive conventional protocol. This localized optimization reduces power consumption for BPD nodes while maintaining adequate network coverage.
2Adaptability or versatility
If conventional network protocols enable large and complex subtrees with high maximum number of nodes and hops, then network scalability is improved, but BPD nodes deplete their limited battery power quickly when managing and routing messages
Solution Approach 1:
The patent implements dynamics by making the network protocol adaptable to different node types and operational contexts. The BPD-optimized protocol dynamically adjusts discovery intervals, messaging frequency, and routing complexity based on battery status and network conditions, allowing BPD nodes to extend their operational lifetime while still enabling network scalability through hierarchical subtree management.
Solution Approach 2:
The patent changes key protocol parameters for BPD nodes compared to conventional MPD protocols: reducing maximum subtree depth, limiting maximum nodes per subtree, adjusting discovery and advertisement intervals, and modifying routing table sizes. These parameter changes reduce the computational and communicative burden on BPD nodes, extending their operational lifetime while maintaining network scalability through controlled subtree configurations.
3Ease of operation
If conventional network protocols define complex functions for managing subtrees, adding nodes, routing messages, and loop management, then network management capability is improved, but BPD nodes expend significant battery power executing these functions
Solution Approach 1:
The patent extracts and removes complex network management functions from the BPD node operational scope. The BPD-optimized protocol eliminates or simplifies functions such as complex loop detection algorithms, advanced routing optimization, and extensive subtree management capabilities that are present in conventional protocols. This extraction reduces the computational burden on BPD nodes, lowering power consumption while maintaining essential network management capability through simplified mechanisms.
Solution Approach 2:
The patent applies partial action by implementing only the necessary subset of network management functions that BPD nodes require for their operational context. Rather than implementing the full suite of complex functions available in conventional protocols, the BPD-optimized protocol includes only essential discovery, basic routing, and simple loop avoidance mechanisms. This partial implementation reduces power consumption while providing adequate network management capability for battery-powered devices.
Data Source
AI summary
Techniques for implementing a network protocol for battery-powered devices (BPDs) include a method performed by a BPD node comprising identifying one or more first potential parent nodes in a BPD subtree within a wireless network; selecting a first parent node from the one or more of first potential parent nodes; transmitting, to a root BPD node of the BPD subtree, a first request to join to the BPD subtree via the first parent node, the root BPD node connecting the BPD subtree to a main network, wherein the BPD subtree is managed according to a first set of subtree parameters different from a second set of subtree parameters for subtrees of the main network; receiving, by the BPD node, a response to the first request from the first parent node; and determining, based on the response, whether to connect to the BPD subtree through the first parent node.