Multi-RAT Wireless Router Packet Distribution Controller
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Solution Overview
Problem
Current wireless routers often struggle to provide sufficient connections for multiple user devices, especially when the number of devices is large, as they typically rely on a single 3G/4G connection which may not meet service requirements.
Innovation Solution
Incorporating multiple wireless transceivers supporting various Radio Access Technologies (RATs) into a wireless communication device, along with multiple subscriber identities, to enable simultaneous connections on different RATs, allowing the device to select the most suitable connections for user devices and service networks based on service types and traffic conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a wireless router uses a single 3G/4G connection, then the device complexity is low, but the quantity of supported user devices is limited
Solution Approach 1:
The patent divides the single connection system into multiple independent connections, each handling specific user devices or traffic types. The controller segments packet flows and routes them through different RAT connections (3G, 4G, Wi-Fi) based on service requirements, thereby increasing the quantity of supported devices without requiring a complete system redesign
Solution Approach 2:
The wireless router is enhanced with multi-functionality by incorporating multiple wireless transceivers supporting different RATs (3G, 4G, Wi-Fi). Each transceiver can independently handle different types of traffic, making the system universal in its ability to serve diverse user devices with varying service requirements while maintaining manageable complexity through centralized control
2Adaptability or versatility
If multiple wireless transceivers and subscriber identities are incorporated, then the adaptability to different service types is improved, but the device complexity increases
Solution Approach 1:
The system implements dynamic adaptability where the controller continuously monitors service types and packet flow characteristics, then dynamically selects the most appropriate RAT connection for each flow. This dynamic routing allows the system to adapt to varying service requirements (e.g., voice, data, video) while the centralized control logic manages the complexity of coordinating multiple transceivers and subscriber identities
3Reliability
If a single connection is used for all communications, then the device complexity is low, but the quality of service for different packet flows deteriorates
Solution Approach 1:
The patent applies local quality by assigning different service qualities to different packet flows based on their specific requirements. Voice traffic receives priority handling on reliable connections, while data traffic can be routed on connections with higher bandwidth. Each connection is optimized for its specific traffic type, ensuring high quality of service for each flow while the controller manages the overall system complexity
Data Source
AI summary
A wireless communication device including a plurality of wireless transceivers and a controller is provided. Each wireless transceiver performs wireless transmission and reception using a respective Radio Access Technology (RAT). The controller enables the wireless transceivers to provide a plurality of wireless connections using a plurality of subscriber identities, and selects a first wireless connection from the plurality of wireless connections for communications between a user device and the wireless communication device. Also, the controller selects a second wireless connection from the plurality of wireless connections according to a service type of a packet flow associated with the user device, for communications between a service network and the wireless communication device, and assigns the second wireless connection for routing packets of the packet flow between the user device and the service network.