IoT Network Device Dynamic Base Station Reselection
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Solution Overview
Problem
Current IoT technology faces challenges in maintaining a high success rate for downlink packet reception due to downlink packet collisions at Base Stations (BS), which result in failed transmissions to IoT terminals.
Innovation Solution
A network device with a packet transmitter, recognition unit, and controller that identifies terminals predicted to fail in receiving downlink packets and reselects a BS with the best channel state for retransmission, optimizing packet transmission/reception times to improve reception success.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the network device transmits the downlink packet to one preselected BS, then the transmission structure is simple, but the downlink packet collision rate increases and reception success rate decreases
Solution Approach 1:
The patent implements dynamic BS reselection based on real-time channel state information. Instead of using a fixed preselected BS, the network device dynamically selects the most suitable BS for downlink packet transmission by evaluating channel conditions, thereby adapting to changing network environments and avoiding collisions while maintaining transmission simplicity.
Solution Approach 2:
The patent changes the selection parameter from a static preselected BS to a dynamic BS chosen based on channel state parameters. By monitoring channel quality indicators and selecting BSs with optimal channel conditions, the system improves reception success rate without significantly increasing structural complexity.
2Productivity
If the BS transmits downlink packets to multiple terminals or occupies frequency resources, then the BS utilization is improved, but downlink packet collision increases and causes transmission failure
Solution Approach 1:
The patent introduces a feedback mechanism where the network device receives channel state information from multiple BSs and uses this feedback to make informed reselection decisions. This feedback loop allows the system to maintain high BS utilization by selecting from multiple available BSs while avoiding collisions through real-time channel condition assessment.
Solution Approach 2:
The patent performs preliminary channel state evaluation and BS reselection before downlink packet transmission. By proactively selecting the optimal BS based on predicted channel conditions, the system prevents collisions before they occur, ensuring both high utilization and reliable transmission.
Data Source
AI summary
Disclosed is a technology for improving the quality of an IoT service by increasing the success rate of reception of a downlink packet transmitted to an IoT terminal through a new proposed method of solving a problem of downlink packet collision recognized by a BS.