Multi-Link ACK Redundancy for Wireless Data Transmission Timing
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Solution Overview
Problem
In wireless communication using multiple links, securing redundancy of acknowledgment signals is difficult due to differing transmission timings and delays in sharing reception success/failure information, leading to potential unnecessary data retransmissions.
Innovation Solution
A wireless communication apparatus with multiple communicating portions and a communication control portion that allocates and controls data transmission and reception across multiple links, ensuring that reception success/failure information is shared and included in acknowledgment signals to enhance redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If transmission timings differ among multiple links or delays occur in sharing reception success/failure information, then communication flexibility and link utilization are improved, but redundancy of acknowledgment signals cannot be secured
Solution Approach 1:
The system performs preliminary actions by having the transmitting side store transmission data and prepare to transmit acknowledgment signals across multiple links before the reception success/failure information sharing is complete. This allows the acknowledgment signal to be transmitted even when information sharing delays occur, maintaining redundancy without requiring complete information synchronization first.
Solution Approach 2:
The invention provides beforehand cushioning by implementing a mechanism where acknowledgment signals are transmitted on multiple links with different timings, creating a buffer against information sharing delays. The transmitting side maintains the ability to send acknowledgment signals even when reception success/failure information has not been fully shared among links, ensuring reliability is cushioned against timing variations.
2Speed
If acknowledgment signals are transmitted without complete reception success/failure information sharing, then communication timing flexibility is improved, but unnecessary data retransmissions increase
Solution Approach 1:
The system implements feedback mechanisms where the transmitting side receives reception success/failure information from the receiving side through multiple links. By monitoring this feedback information, the transmitting side can determine which data requires retransmission and which does not, even when information sharing is incomplete. This allows timely acknowledgment signal transmission while minimizing unnecessary retransmissions through intelligent feedback processing.
Data Source
AI summary
A wireless communication apparatus: performs communication using a first link; performs communication using a second link; and performs allocation control of allocating transmission data to first data and second data, transmission control of controlling transmission of the first data using the first link and transmission of the second data using the second link, and reception control of controlling reception using the first link of a first response including reception success/failure information indicating a success/failure of reception with respect to the first data and at least a part of the second data and reception using the second link of a second response including the reception success/failure information indicating a success/failure of reception with respect to the second data and at least a part of the first data. The present technique can be applied to wireless communication systems.