Mobile Device Selective Data Routing Over WWAN and UWN
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Solution Overview
Problem
Current cellular-over-IP (CoIP) standards face a bottleneck in data transfer due to the mismatch in bandwidth between licensed wide area networks (WWANs) and unlicensed short-range networks, where all data must be routed through the WWAN, leading to inefficient data routing and increased latency.
Innovation Solution
A mobile device that classifies data based on its destination network and selectively routes it over either the WWAN or unlicensed wireless network (UWN), bypassing the WWAN for data not requiring access to WWAN services, thereby avoiding the bandwidth bottleneck at the interface between the ISP and mobile network operator networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all data is routed through the WWAN for CoIP sessions, then security and network control are maintained, but data transfer speed and efficiency deteriorate due to bandwidth limitations
Solution Approach 1:
The patent segments data traffic into two categories: CoIP session data (voice, video, messaging) that must traverse the WWAN for security, and general IP data that can bypass the WWAN. This segmentation allows selective routing where only essential control traffic uses the secure WWAN path while bulk data transfers use the high-speed unlicensed network path.
Solution Approach 2:
The patent introduces an intermediary mechanism (classifier and selective router) between the CoIP handset and the networks that intelligently directs different types of traffic through appropriate paths. This intermediary enables the system to maintain security requirements while exploiting high-speed networks for non-critical data.
2Productivity
If the WWAN interface capacity is increased to handle higher data rates, then data transfer efficiency improves, but network cost and complexity increase
Solution Approach 1:
The patent extracts the bottleneck by removing the requirement for high-capacity WWAN interfaces. By allowing general IP data to bypass the WWAN entirely and use unlicensed networks directly, the system eliminates the need to upgrade expensive licensed network infrastructure while maintaining overall system performance.
3Speed
If CoIP handsets use unlicensed networks for data transfer, then data rates increase, but all data must still be tunneled through the WWAN creating a bottleneck
Solution Approach 1:
Instead of tunneling all data through the WWAN as in traditional CoIP architecture, the patent inverts the approach by allowing data to flow directly through unlicensed networks when appropriate, and only routing CoIP session data through the WWAN. This reversal eliminates the tunneling bottleneck while preserving security for critical traffic.
Data Source
AI summary
A mobile device is provisionable for service on a wireless wide area network (WWAN) operated by a licensed network operator and is further operable on at least one shorter-range, unlicensed wireless network (UWN). The mobile device stores applications that generate data when executed, including at least one application that generates data for communication over the WWAN. The mobile device executes a stored application and classifies data generated by the executed application into one of at least two categories based upon a domain of a target network to which the data is to be sent. A first category relates to data requiring communication at least partially over the WWAN and a second category relates to data not requiring communication over the WWAN. The mobile device establishes communication with a target device in the target network over at least the UWN based upon classification of the data generated by the executed application.