Wireless Node Radio Reactivation for Low-Power Network Connectivity
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Solution Overview
Problem
Existing wireless communication networks face challenges in managing energy consumption and maintaining connectivity when radios are powered down, leading to inefficiencies and loss of sensitivity in detecting distant devices.
Innovation Solution
A method for managing the activation state of node devices in a wireless communication network, where radios enter a partially disabled state upon inactivity, with one radio remaining active to maintain user network presence, and upon receiving a communication request, reactivate other radios and reconnect to neighboring nodes as needed to process the request.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If all radios are completely turned off to reduce energy consumption, then energy savings increase, but core network communication becomes impossible
Solution Approach 1:
The patent segments the radio functions into two distinct networks: user network (for client devices) and core network (for node interconnection). This allows selective operation where the core network radio remains active while user network radios can be deactivated, resolving the contradiction by enabling energy savings without compromising core network communication capability
Solution Approach 2:
The patent implements dynamic radio state management where radios transition between active and deactivated states based on network conditions. The core network radio maintains an active state to ensure communication reliability, while user network radios dynamically switch states to optimize energy consumption, thus resolving the static contradiction between constant energy usage and communication reliability
2Loss of energy
If radios are kept in degraded mode to detect connection requests, then energy consumption is reduced, but radio sensitivity is lost
Solution Approach 1:
The patent applies segmentation by separating the detection function into two parts: the core network radio continuously monitors for connection requests in full sensitivity mode, while user network radios can operate in degraded or deactivated mode. This resolves the contradiction by maintaining detection capability through the core network radio without requiring all radios to consume full power
Solution Approach 2:
The core network radio acts as an intermediary that receives and processes connection requests on behalf of the system. When a connection request is detected through the core network, it triggers the activation of the appropriate user network radio, allowing the system to maintain sensitivity without keeping all radios in high-power states simultaneously
3Loss of energy
If secondary radios are switched off to reduce energy consumption, then power savings increase, but ability to serve compatible terminals is reduced
Solution Approach 1:
The patent implements dynamic radio activation where secondary radios transition from deactivated to active state based on incoming connection requests. When a terminal compatible with a specific radio frequency or standard is detected through the core network, the corresponding secondary radio is activated to serve that terminal, thus achieving both energy savings and terminal compatibility
4Reliability
If one radio remains active to maintain user network presence, then connectivity is maintained, but energy consumption increases compared to complete shutdown
Solution Approach 1:
The patent segments network functions into core network (inter-node communication) and user network (client device communication). By deactivating user network radios while keeping the core network radio active, the system maintains essential connectivity for network management and node coordination without the energy cost of maintaining full user network presence, thus resolving the contradiction between connectivity and energy consumption
Data Source
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AI summary
The invention relates to a method and a device for managing the activation state of a node device, called the current node, of a first wireless communication network, said wireless communication network being configured to provide a communication service to a client device, said wireless communication network comprising at least one other node device, called the neighbor node, said current node comprising a first radio hosting a first access point to a first wireless communication network of the current node, called the core network, configured to interconnect said current node and said at least one neighbor node, and a second radio hosting a second access point to a second wireless communication network, called the user network, configured to connect the client device to said current node, and via the core network, give it access to the communication service, .comprising: - upon receipt of a communication request by the current node on one of the first and second radios, the reactivation of the other of the first and second radios, when said current node is in a partially deactivated state, and - when it has been determined, at least based on the received communication request, that a connection of the current node to the core network is required to process said communication request, and following a failure to connect the current node to said at least one neighboring node, the reactivation of at least one neighboring node by the current node sending a discovery request on at least one radio of said at least one neighboring node.