Multi-Link RTS Coordination for Non-STR Interference Control
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Solution Overview
Problem
Existing wireless communication systems face challenges in ensuring data reliability and high-speed transmission due to interference between multiple links, particularly in non-simultaneous transmit and receive (non-STR) link pairs, which affect the efficiency of protection mechanisms in multi-link operations.
Innovation Solution
A wireless communication method and system that adaptively controls the transmission timing and content of frames, such as the request-to-send (RTS) frame, by determining additional length and cross-link-related information to minimize interference and enhance reliability through multiple links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple links are used for wireless communication, then data transmission rate and reliability are improved, but interference between links increases
Solution Approach 1:
The patent applies preliminary anti-action by determining additional length and cross-link-related information in the transmission preparation period of RTS frames before actual data transmission occurs. This advance preparation allows the system to preemptively adjust frame parameters to prevent interference between multiple links, rather than reacting to interference after it occurs. The processing circuitry calculates and sets the additional length of RTS frames based on expected cross-link interference conditions, thereby preventing harmful interference before it affects data transmission.
Solution Approach 2:
The patent implements preliminary action by performing transmission preparation in advance of actual data transmission. The processing circuitry determines the additional length and cross-link-related information of RTS frames during a transmission preparation period before the links are activated for data transfer. This preliminary configuration of frame parameters ensures that interference mitigation strategies are already in place before multiple links begin operating, allowing high-speed transmission to proceed without disruption from link interference.
2Reliability
If frame transmission parameters are adjusted to reduce interference, then link reliability is improved, but transmission efficiency may be reduced
Solution Approach 1:
The patent applies dynamics by making the RTS frame length adaptive rather than fixed. The processing circuitry dynamically determines the additional length of RTS frames based on real-time assessment of cross-link interference conditions and transmission requirements. This dynamic adjustment allows the system to optimize frame parameters for each specific transmission scenario, achieving high reliability when interference is present while maintaining transmission efficiency when conditions permit, thus avoiding the trade-off between reliability and efficiency.
Data Source
AI summary
A wireless communication method of a first device with a second device using multiple links, including first and second links, the method including obtaining transmission-related information in response to entering a transmission preparation period of a first request-to-send (RTS) frame through the first link, the transmission-related information corresponding to a second RTS frame associated with the second link, determining at least one of an additional length or cross-link-related information of the first RTS frame based on the transmission-related information, and determining whether to transmit the second RTS frame based on the at least one of the additional length of the cross-link-related information of the first RTS frame.