Common Scoreboard for Multi-Link Wireless Communication
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Solution Overview
Problem
Existing communication systems face challenges in efficiently managing data acquisition success/failure information across multiple links, leading to unnecessary retransmissions and increased complexity in managing scoreboards.
Innovation Solution
A communication device and method that utilize a common data processing unit with a cache-type common storage unit to store acquisition success/failure information across multiple links, enabling the generation of a common response signal that includes acquisition success/failure information from all links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a Full-state Common Scoreboard is used to store acquisition success/failure information for each Block Ack Session, then complete data tracking across multiple links is achieved, but memory cost and mounting difficulty increase significantly
Solution Approach 1:
The patent merges multiple individual scoreboards (one for each link) into a single Common Scoreboard that stores acquisition success/failure information for multiple Block Ack Sessions simultaneously. This consolidation allows the system to track data across multiple links using one unified memory structure rather than requiring separate scoreboards for each link, thereby reducing overall mounting difficulty while maintaining complete data tracking.
Solution Approach 2:
The Common Scoreboard is designed to serve multiple functions: it stores acquisition information for multiple Block Ack Sessions, supports multiple links, and enables generation of common response signals. This multi-functional design eliminates the need for separate dedicated scoreboards for each link or session, reducing the total memory requirements and mounting complexity while maintaining reliable data tracking across all links.
2Ease of operation
If individual response signals are transmitted for each link, then link-specific acquisition information is provided, but unnecessary retransmissions occur when response signals are lost on certain links
Solution Approach 1:
The patent merges multiple individual response signals into a single Common Response Signal that contains acquisition success/failure information for multiple links. By combining these responses, the system ensures that if the common response signal is successfully received, the sender has reliable acknowledgment for data transmitted on multiple links, eliminating the need for redundant retransmissions that would occur with individual link-specific response signals.
3Productivity
If cache-type storage is used in the common data processing unit, then data processing efficiency is improved, but storage capacity is limited
Solution Approach 1:
The patent implements a dynamic Common Scoreboard that can be updated and reused across different Block Ack Sessions. Instead of requiring large static memory to store all possible acquisition information permanently, the scoreboard dynamically stores information for active sessions and is refreshed as new sessions are established. This dynamic approach allows efficient data processing with limited cache capacity, as the same memory space is reused across multiple sessions rather than requiring dedicated storage for each.
Data Source
AI summary
A communication device that performs wireless communication using a plurality of links includes a common data processing unit that includes a common storage unit of a cache type storing success/failure of acquisition of packets received on the plurality of links, and that performs common data processing on packets received on individual links, and a control unit that controls transmission of a response signal to the packets received. The control unit generates a common response signal including acquisition success/failure information received on the plurality of links on the basis of acquisition success/failure information held in the common storage.