Expedited Wireless Carrier Handover via Remote SNEP Server
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Solution Overview
Problem
Existing handover techniques between wireless carriers, such as from Near Field Communication (NFC) to higher bit rate carriers like Bluetooth or Wi-Fi, are incompatible with some mobile devices, leading to communication disruptions due to compatibility issues.
Innovation Solution
An expedited handover method is introduced, utilizing a Simple NDEF Exchange Protocol (SNEP) server to send a Handover Select message, allowing devices to switch from NFC to another wireless carrier even if they cannot read NFC tags or connect to an NFC handover server, ensuring seamless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional NFC handover techniques are used, then handover compatibility is improved for certified devices, but communication reliability deteriorates for devices with antenna strength limitations or certification issues
Solution Approach 1:
The patent introduces a remote server as an intermediary to facilitate handover. Instead of direct NFC tag reading between devices, the system uses a remote server that receives requests from the first device and sends responses to the second device. This intermediary approach allows devices with antenna limitations or certification issues to perform handover reliably, as the server handles the complex NFC communication protocols and tag reading operations.
Solution Approach 2:
The system performs preliminary actions by establishing a communication channel through the remote server before the actual handover occurs. The first device sends a request to the server, which prepares the handover information in advance. This preliminary setup ensures that when handover is needed, the communication path is already established, improving reliability for devices that might struggle with direct NFC communication.
2Speed
If NFC tag reading is attempted for all devices, then handover speed is improved for devices with strong antennas, but device complexity increases to handle various antenna strength scenarios
Solution Approach 1:
The patent segments the handover process into two distinct paths: a fast path for devices with strong antennas that can read NFC tags directly, and a server-assisted path for devices with weaker antennas. This segmentation allows the system to optimize for speed when possible while providing a reliable fallback option, avoiding the need for all devices to implement complex antenna strength detection and adaptive handover logic.
Solution Approach 2:
The remote server acts as an intermediary that simplifies the handover process for devices that cannot perform direct NFC tag reading. By offloading the complex tag reading and interpretation tasks to the server, the device complexity is reduced, as devices only need to implement basic server communication protocols rather than full NFC stack management.
3Productivity
If direct device-to-device NFC communication is used, then communication efficiency is improved, but adaptability deteriorates for devices that cannot read NFC tags
Solution Approach 1:
The patent implements a universal handover mechanism that works across different device types and capabilities. The remote server provides a common interface that both NFC-capable devices and NFC-limited devices can use. This multi-functionality ensures that the handover system adapts to various device scenarios while maintaining a consistent user experience and communication efficiency.
Solution Approach 2:
The remote server serves as a universal intermediary that enables handover for all device types. By routing handover requests through the server, the system maintains communication efficiency while expanding adaptability to include devices that cannot perform direct NFC tag reading, such as those with weak antennas or lacking NFC certification.
Data Source
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AI summary
Embodiments are disclosed for handover between wireless carriers in multiple devices. In an example configuration, an in-vehicle computing system of a vehicle includes a first network interface configured to communicate over a first wireless carrier, a second network interface configured to communicate over a second wireless carrier, a processor configured to control communication via the first network and the second network, and a storage device storing instructions executable by the processor to connect to a computing device over the first wireless carrier. The instructions are further executable to send a select message to the computing device via a remote server, the select message identifying the second wireless carrier, receive a confirmation message from the computing device initiating communication over the second wireless carrier, and receive data from the computing device over the second wireless carrier.