UE Internet Reachability Management via Access Device Indicator
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Solution Overview
Problem
In IPv4 networks, hosts in private networks are unaware of public network disconnections, leading to delayed operations as they continue to try to access the public network, resulting in performance issues.
Innovation Solution
A method for Internet reachability management where user equipment (UE) performs immediate reachability detection upon receiving an indicator from an access device, allowing it to disconnect from the first access device and reconnect to a second access device if the network is unreachable, using protocols like IPv6 and IPv4 for detection and communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If hosts continue to use periodic check methods to detect network reachability, then the detection mechanism is simple, but the response time is delayed and performance deteriorates
Solution Approach 1:
The access device performs reachability detection in advance by sending indicator messages to the host before actual data transmission occurs. This preliminary action allows the host to be notified of network unreachability conditions proactively, eliminating the need for continuous periodic checking and reducing response time when disconnection occurs.
Solution Approach 2:
The system establishes a feedback mechanism where the access device sends indicator messages to the host about network reachability status. This feedback loop allows the host to receive real-time information about connection status without needing to continuously initiate its own detection queries, thereby reducing response time while maintaining relatively simple implementation.
2Reliability
If hosts perform continuous periodic reachability detection, then network responsiveness is improved, but energy consumption increases
Solution Approach 1:
Instead of continuous periodic detection, the system uses event-driven periodic action where the access device initiates reachability detection only when necessary (e.g., when indicator messages are sent). This selective periodic action maintains network responsiveness while significantly reducing energy consumption compared to continuous monitoring approaches.
Solution Approach 2:
The access device takes responsibility for performing reachability detection and sending indicator messages to the host, rather than requiring the host to continuously perform its own detection. This self-service approach shifts the detection burden to the access device, reducing the host's energy consumption while maintaining reliable network responsiveness.
3Ease of operation
If hosts wait for periodic check cycles to detect network disconnection, then the detection mechanism is simple, but operational delays occur
Solution Approach 1:
The access device performs reachability detection in advance and sends indicator messages to the host before actual data transmission occurs. This preliminary action allows the host to be notified of network unreachability conditions proactively, eliminating the need for continuous periodic checking and reducing response time when disconnection occurs.
Solution Approach 2:
The system establishes a feedback mechanism where the access device sends indicator messages to the host about network reachability status. This feedback loop allows the host to receive real-time information about connection status without needing to continuously initiate its own detection queries, thereby reducing response time while maintaining relatively simple implementation.
Data Source
AI summary
A method for performing Internet reachability management and associated apparatus are provided. The method may include: establishing, by a processor of the UE, a first connection to a first access device; receiving, by the processor, an indicator complying with a first protocol sent from the first access device; in response to receiving the indicator, performing, by the processor, a reachability detection complying with a second protocol to generate a detection result; and in response to the detection result representing that a network is not reachable, performing at least one of: displaying, by a display of the UE, a message or icon to represent the first connection or the network is unavailable; disconnecting, by the processor, the first connection; and establishing, by the processor, a second connection to a second access device.