Virtual Radio Channel Aggregation for Wireless Connectivity
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Solution Overview
Problem
Wireless communication networks, particularly in FWA and AGV scenarios, face connectivity issues due to suboptimal positioning of wireless access devices and environmental obstacles, leading to performance variability and potential loss of connectivity.
Innovation Solution
The method involves creating a virtual radio channel by associating multiple radio channels between a RAN node and wireless access devices, allowing for efficient data forwarding and load balancing to enhance connectivity robustness, using a RAN node and wireless access devices with processors and memory to manage and maintain these channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single radio channel is used for wireless connectivity, then the device complexity is low, but the reliability of connectivity is poor due to obstacles and suboptimal positioning
Solution Approach 1:
The patent segments the connectivity function by establishing multiple independent radio channels between the wireless access device and different RAN nodes. Each radio channel operates independently, so if one channel is blocked by obstacles or becomes suboptimal, other channels remain available to maintain connectivity. This segmentation directly improves reliability without requiring a complete system redesign.
Solution Approach 2:
The patent merges multiple radio channels into a unified connectivity solution where data can be transmitted through any available channel. The wireless access device and RAN nodes coordinate to combine the capabilities of multiple channels, allowing flexible routing of data through the most suitable channel at any given time, thereby improving overall connectivity reliability.
2Reliability
If multiple radio channels are maintained for redundancy, then the reliability of wireless connectivity improves, but the device complexity increases due to channel association and data forwarding management
Solution Approach 1:
The patent introduces an intermediary layer of abstraction where the wireless access device acts as a mediator between multiple radio channels and the data traffic. This intermediary manages the association between channels and data flows, coordinating with RAN nodes to route data through appropriate channels. This mediator approach consolidates the complexity management function, making the system more reliable while containing complexity in a manageable component.
Solution Approach 2:
The patent implements dynamic channel association where the mapping between radio channels and data flows is not fixed but can be adjusted in real-time. The system dynamically selects which channel to use for data transmission based on current radio conditions, obstacle presence, and channel quality. This dynamic adaptation improves reliability by automatically responding to changing environmental conditions while managing complexity through adaptive algorithms.
Data Source
AI summary
A radio access network, RAN, node of a wireless communication network maintains a radio channel having a network-side termination at the RAN node and a subscriber-side termination at a wireless access device. Further, the RAN node maintains one or more further radio channels. The one or more further radio channels each have a network-side termination at the RAN node and a respective subscriber-side termination at a respective further wireless access device. The RAN node associates the radio channel and the one or more further radio channels to a virtual radio channel for carrying data between the RAN node and the wireless access device. The one or more further wireless access devices are assigned for forwarding data between the wireless access device and the respective further radio channel having its subscriber-side termination at the further wireless access device.