Wireless Policy Delivery for Seamless Cellular Offloading
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Solution Overview
Problem
In mobile communication systems, when a second electronic device is connected to a first electronic device performing a tethering function via a WLAN communication system, the first electronic device cannot serve as an access point, and the second device may face difficulties accessing the cellular network, leading to challenges in maintaining wireless communication.
Innovation Solution
A method and electronic device for delivering policy information for offloading between different wireless communication systems, involving performing a tethering function, determining if the tethering function should be released, identifying connected devices, delivering policy information to allow the second device to continue wireless communication, and releasing the tethering function after policy information delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the first electronic device performs tethering function through WLAN communication system, then the second electronic device can access network services, but the first electronic device cannot serve as an access point and the second device faces difficulties accessing the cellular network
Solution Approach 1:
The patent introduces policy information as an intermediary mechanism that enables the second electronic device to maintain wireless communication with the cellular network even when the first device's tethering function is released. The policy information acts as a mediator that preserves network access capability without requiring the first device to continuously serve as an access point.
Solution Approach 2:
The patent delivers policy information from the first electronic device to the second electronic device before the tethering function is released. This preliminary action ensures that the second device has the necessary information to maintain wireless communication continuity even after the first device stops performing the tethering function.
2Adaptability or versatility
If the tethering function is released to allow the first electronic device to serve as an access point, then the second electronic device loses network access, but maintaining tethering prevents the first device from serving as access point
Solution Approach 1:
The patent extracts the essential policy information for offloading from the tethering function itself and delivers it separately to the second electronic device. This allows the tethering function to be released while preserving the critical information needed for maintaining network access, separating the function from its supporting data.
3Reliability
If the second electronic device directly searches for network system, then it can maintain wireless communication, but the process is complex and time-consuming
Solution Approach 1:
The patent delivers policy information to the second electronic device in advance, before the need to search for alternative access points. This preliminary provision of information eliminates the time-consuming search process by giving the second device the necessary credentials and parameters to maintain communication immediately.
Data Source
AI summary
Disclosed is a method of delivering policy information for offloading between different types of wireless communication systems by a first electronic device. The method includes: performing a tethering function; determining whether to release the tethering function; identifying a first electronic device connected based on the tethering function when the tethering function is released; delivering policy information for offloading between different types of wireless communication systems to the identified first electronic device; and releasing the tethering function after delivering the policy information to the first electronic device.