WUR-Based Connection Switching for Communication Apparatus
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Solution Overview
Problem
In situations where data communication with other communication apparatuses is difficult, existing technologies face challenges in efficiently switching to a new connection destination, leading to increased downtime and power consumption.
Innovation Solution
A communication apparatus equipped with a first unit for IEEE 802.11 series standard communication, a second unit for IEEE 802.11ba standard Wake Up Radio (WUR) communication, and a determination unit to assess signal strength, allowing early search processing for a new connection destination using the first unit when data communication with the primary connection is impaired.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the communication apparatus waits until data communication failure is detected before searching for a new connection destination, then power consumption is reduced during normal operation, but downtime increases when connection failure occurs
Solution Approach 1:
The determination unit performs preliminary assessment of signal strength or signal quality before complete communication failure occurs. When the assessed value falls below a threshold, the search unit proactively initiates search processing for a new connection destination, rather than waiting for complete failure. This preliminary action reduces downtime while avoiding continuous search operations that would increase power consumption.
2Reliability
If the communication apparatus continuously monitors communication quality, then connection failure is detected earlier, but power consumption increases
Solution Approach 1:
The determination unit utilizes existing communication signals (such as WUR Beacons or data communication signals) to assess signal strength or signal quality, rather than requiring separate dedicated monitoring signals. This self-service approach enables continuous monitoring for reliability improvement without significantly increasing power consumption, as the assessment is performed using already-transmitted signals.
3Speed
If search processing is initiated early based on signal strength assessment, then connection switching is faster, but false searches may occur due to temporary signal fluctuations
Solution Approach 1:
The determination unit compares the assessed signal strength or signal quality against a predetermined threshold before triggering search processing. This threshold-based preliminary anti-action prevents false searches caused by temporary signal fluctuations, as only sustained degradation below the threshold initiates a search. This approach balances fast connection switching with reliable search accuracy.
Data Source
AI summary
In a case where a wireless signal is received by Wake Up Radio (WUR), processing of searching for a new connection destination of Primary Connectivity Radio (PCR) is started based on signal strength or signal quality of the wireless signal.