Multi-Link Data Transmission for Network Reliability
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Solution Overview
Problem
Current MIMO technologies primarily focus on increasing transmission speed and throughput, but fail to ensure stability and reliability in scenarios with high requirements, such as real-time gaming with many users, where low-latency and stable wireless networks are critical.
Innovation Solution
A data transmission method where a station transmits the same data packet over different frequency bands to an access point, allowing the access point to determine and remove duplicate packets based on arrival order and completeness, thereby improving network stability and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MIMO technology is used to increase transmission speed and throughput, then the transmission rate is improved, but the stability and reliability under low-throughput transmission conditions deteriorates
Solution Approach 1:
The patent segments the data transmission by dividing it into multiple spatial flows that are transmitted through different antennas. Each spatial flow carries the same data, and the receiver combines these flows to achieve both high throughput and improved reliability through spatial diversity.
Solution Approach 2:
The patent changes the transmission parameters by using multiple antennas to create independent fading spatial flows. This parameter change allows the system to maintain stability under low-throughput conditions while achieving high transmission rates when needed.
2Device complexity
If data is transmitted on a single frequency band, then the device complexity is reduced, but the network reliability under high instantaneous delay conditions deteriorates
Solution Approach 1:
The patent introduces a new dimension for data transmission by using multiple frequency bands. Data is transmitted on both a first frequency band and a second frequency band simultaneously, providing alternative paths that improve reliability when instantaneous delay occurs on one band without significantly increasing system complexity.
Data Source
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AI summary
Embodiments of this application disclose a data transmission method, including: establishing, by a station, a multi-link to an access point, the multi-link instructing the access point to provide at least a first frequency band and a second frequency band, and the first frequency band and the second frequency band being two different frequency bands, transmitting, by the station, a first data packet to the access point on the first frequency band; and transmitting, by the station, a second data packet to the access point on the second frequency band, so that the access point removes the first data packet or the second data packet according to a data transmission status, the second data packet and the first data packet transmitting the same service data. The embodiments of this application further provide a station, an access point, and a data transmission system. In the embodiments of this application, the station transmits the same data packet to the access point by using different frequency bands, to avoid delayed arrival or loss of the data packet due to an extremely high instantaneous delay, thereby improving network reliability.