Multi-Link Transmitting Station Data Distribution
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Solution Overview
Problem
Current wireless local area network (LAN) systems face inefficiencies in data communication when using multi-link configurations, particularly in managing data transmission and reception across multiple channels, leading to inconsistencies in data delivery status and reduced communication reliability.
Innovation Solution
The implementation of a transmitting station with multiple radio signal processing units and a link management unit that distributes data across different channels, using sequence numbers to manage and confirm data delivery across multiple links, ensuring consistent data reception and retransmission processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is transmitted across multiple channels in multi-link configuration, then communication throughput is improved, but data delivery consistency deteriorates
Solution Approach 1:
The transmitting station divides data into multiple data units and distributes them across different radio signal processing units and channels. Each data unit is assigned a sequence number, allowing the receiving station to reassemble them in the correct order, thus maintaining data delivery consistency while utilizing multiple channels for improved throughput.
Solution Approach 2:
The receiving station sends feedback information to the transmitting station regarding the reception status of data units. This feedback mechanism enables the transmitting station to track which data units have been successfully received and which need retransmission, ensuring reliable and consistent data delivery across multi-link configurations.
2Productivity
If multiple radio signal processing units are used for parallel data transmission, then communication efficiency is improved, but system complexity increases
Solution Approach 1:
Each radio signal processing unit is designed with universal functionality to handle data unit transmission, sequence number management, and acknowledgment processing. This standardized multi-functional design allows parallel operation of multiple units while maintaining manageable system complexity through consistency in their operational patterns.
Solution Approach 2:
Data units are pre-numbered with sequence numbers before distribution to different radio signal processing units. This preliminary action of numbering enables the receiving station to automatically reassemble data in the correct order without requiring complex real-time coordination between multiple transmitting units, thereby reducing system complexity.
3Speed
If data units are distributed across different channels, then data transmission speed is improved, but error management difficulty increases
Solution Approach 1:
Sequence numbers act as an intermediary mechanism that links data units transmitted across different channels. The receiving station uses these sequence numbers to detect missing or erroneous data units and requests retransmission, simplifying error management despite the distributed multi-channel transmission architecture.
Data Source
AI summary
A transmitting station (TX) of an embodiment includes first and second radio signal processing units (STA1 and STA2) and a link management unit (LM). The first and second radio signal processing units are configured to be able to transmit a radio signal using first and second channels, respectively, and store information indicating a sequence number of data to be transmitted. The link management unit establishes multi-link with the receiving station by using the first radio signal processing unit and the second radio signal processing unit, and manages communication using the multi-link. The link management unit distributes a plurality of data units to the first and second radio signal processing units. The first radio signal processing unit transmits a first data unit group input from the link management unit among the plurality of data units to the receiving station, and stores first information (TBM) indicating the sequence number of the data unit included in the first data unit group.