Wireless Virtual Interface Redundancy for Latency
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Solution Overview
Problem
Wireless communication links in medical devices, such as patient monitoring systems, often experience degradation due to factors like patient movement and signal interference, leading to data loss and increased latency, which can compromise real-time data integrity and analysis.
Innovation Solution
The implementation of wireless virtual interfaces allows a single physical network device to connect to multiple access points via different channels, enabling simultaneous transmission of redundant data across separate paths, thereby ensuring reliable and low-latency data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is retransmitted to maintain data integrity, then data reliability is improved, but transmission latency increases
Solution Approach 1:
The system performs preliminary actions by sending redundant data packets along with the original data packets before any potential loss occurs. This allows the receiving device to have backup copies ready, eliminating the need for retransmission and thus avoiding latency while maintaining data integrity.
Solution Approach 2:
The patent applies beforehand cushioning by introducing redundant data transmissions as a protective measure against potential channel degradation. The redundant transmissions act as a cushion that absorbs potential data loss, ensuring continuous reliable data reception without requiring corrective retransmission actions.
2Reliability
If redundant data is transmitted to ensure data integrity, then reliability is improved, but network bandwidth is consumed
Solution Approach 1:
The system dynamically changes the parameter of redundancy level based on channel conditions. When the wireless channel quality is good, fewer redundant packets are sent. When channel quality degrades, the system increases the redundancy level. This adaptive approach maintains data integrity while optimizing bandwidth consumption according to actual network conditions.
Solution Approach 2:
The patent applies partial action by transmitting only the necessary amount of redundant data rather than always sending full redundancy. The system calculates the optimal redundancy level based on channel metrics, sending just enough extra data to ensure integrity without unnecessarily consuming bandwidth.
3Device complexity
If a single wireless channel is used for data transmission, then device complexity is reduced, but data reliability deteriorates under channel degradation
Solution Approach 1:
The patent makes the single wireless communication device universal by enabling it to communicate with multiple access points simultaneously through virtual interfaces. This multi-functionality allows the device to switch between different communication paths, maintaining reliability without requiring multiple physical devices.
Solution Approach 2:
The system adds another dimension to the communication architecture by introducing virtual interfaces that operate over the same physical hardware. This dimensional change allows multiple logical communication channels to coexist on a single physical device, providing redundancy and reliability without increasing physical complexity.
Data Source
AI summary
Examples of selectively transmitting redundant data over a wireless network are provided. One example includes initializing a first wireless virtual interface and a second wireless virtual interface, each wireless virtual interface communicating with a network using resources of the wireless hardware device and transmitting data from the first wireless virtual interface to the network via a first channel to a first access point of the network. The example further includes transmitting a selected amount of redundant data from the second wireless virtual interface to the network via a second channel to a second access point of the network, the selected amount being based on channel metrics of one or more of the first channel and the second channel.