Connected Car Modem Reconnection for Network Service Recovery
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Solution Overview
Problem
Connected car services experience service unavailability due to connection failures with mobile communication networks, which are difficult to recover without physically disconnecting and reconnecting the vehicle's wireless communication modem, posing inconvenience to users.
Innovation Solution
A connected car service terminal that sends a first reconnection request based on predetermined retry conditions and a second request regardless of these conditions when a service request occurs, using a retry timer that can be adjusted by a server, allowing immediate reconnection when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the CCS terminal maintains connection to the mobile communication network continuously, then service availability is improved, but connection failure due to network overload or temporary failure cannot be recovered without physical battery disconnection
Solution Approach 1:
The system enables automatic self-reconnection through the retry mechanism. When connection failure is detected, the CCS terminal automatically initiates reconnection attempts without requiring user intervention or physical battery disconnection, allowing the system to serve itself in recovering from network failures
Solution Approach 2:
The retry mechanism introduces dynamic behavior to the previously static connection state. The system transitions from a fixed connection state to a dynamic state with multiple retry attempts, adapting to network conditions automatically through timed reconnection efforts rather than requiring manual intervention
2Speed
If the CCS terminal attempts frequent reconnection to recover from connection failure, then service recovery speed is improved, but network load increases
Solution Approach 1:
The retry mechanism implements periodic reconnection attempts with predetermined time intervals between retries. This periodic action allows the system to balance service recovery speed with network load management by spacing out reconnection attempts rather than continuously retrying
Solution Approach 2:
The system changes the retry parameters (number of attempts, time intervals) based on network conditions and service requirements. This allows optimization of the balance between recovery speed and network load by adjusting reconnection frequency and timing parameters
3Loss of energy
If the CCS terminal uses a retry timer mechanism for reconnection, then unnecessary reconnection attempts are reduced, but reconnection delay occurs when immediate reconnection is needed
Solution Approach 1:
The retry timer mechanism dynamically adapts reconnection timing based on detected network conditions. When immediate reconnection is needed, the system adjusts the timer parameters to enable faster reconnection attempts, while under normal conditions it uses longer intervals to reduce unnecessary attempts
Data Source
AI summary
The present disclosure relates to an apparatus and method for providing a connected car service, which can effectively cope with unavailability of service due to a connection problem with a mobile communication network. An apparatus for providing a connected car service may include a mobile communication modem connected to a mobile communication network to perform data exchange, and a connected car service terminal configured to detect a connection failure associated with the mobile communication network, send a first reconnection request based on whether a predetermined retry condition is satisfied, and send a second reconnection request regardless of whether the predetermined retry condition is satisfied.