EMLSR Link Backoff Control for Reliable Wireless Transmission
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Solution Overview
Problem
Existing wireless communication systems fail to efficiently manage data transmission in EMLSR mode, where data transmission efficiency is compromised by the lack of effective management and handling of data transmission in EMLSR mode, where existing systems fail to effectively manage and handle data transmission effectively.
Innovation Solution
A wireless signal processing unit and management unit are implemented to establish multiple links between a transmission station and a reception station, allowing data transmission through arbitrary one link at the same timing, with standby time based on the number of transmission failures, effectively managing data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If binary exponential backoff is used to increase transmission standby time after transmission failure, then transmission reliability is improved, but transmission efficiency deteriorates
Solution Approach 1:
The patent segments the link set into multiple individual links, and tracks transmission failures per link rather than globally. When a link fails, only that specific link's backoff counter is incremented, not all links in the set. This segmentation allows other links to maintain normal transmission efficiency while the failed link undergoes exponential backoff, resolving the contradiction between reliability and efficiency.
Solution Approach 2:
The patent applies different backoff strategies to different links based on their individual transmission success/failure history. Each link has its own backoff counter that is independently managed. This local quality approach ensures that only problematic links experience increased standby time, while successful links continue operating efficiently, thus maintaining overall transmission efficiency while improving reliability.
2Adaptability or versatility
If multiple links are established in EMLSR mode, then transmission adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal link management mechanism where the same backoff control logic is applied across all links in the set. The management unit uniformly tracks and manages backoff counters for each link using consistent rules, simplifying the complexity of managing multiple links. This multi-functional approach allows the system to handle EMLSR mode's multiple links without proportionally increasing management complexity.
3Reliability
If transmission standby time is increased for retransmission, then transmission reliability is improved, but loss of time increases
Solution Approach 1:
The patent dynamically adjusts transmission standby time based on real-time link performance. When a link experiences transmission failure, its backoff counter is incremented, dynamically increasing standby time for that specific link. However, when the link succeeds, the counter resets, dynamically reducing standby time. This dynamic adjustment ensures reliability is improved only when needed, minimizing unnecessary time loss during successful transmissions.
Data Source
AI summary
The transmission station according to an embodiment includes a wireless signal processing unit and a management unit. The management unit establishes a plurality of links between the wireless signal processing unit and a reception station using the wireless signal processing unit, and enables the wireless signal processing unit to transmit data to the reception station through only arbitrary one of the plurality of links at the same timing. In a case where target data to be transmitted is transmitted to the reception station through a target link that is arbitrary one of a plurality of links, the management unit sets a transmission standby time for the target data on the basis of the number of transmission failures of the target data through the target link.