Configured Feedback Resource for Half-Duplex Sidelink Reliability
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Solution Overview
Problem
Half duplex sidelink communication in wireless networks can result in improper reception of communications due to simultaneous transmission and reception constraints.
Innovation Solution
Implementing a configured feedback resource mechanism that allows devices to monitor for feedback and determine whether to transmit on a designated feedback resource, addressing half duplex issues through retransmission if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If half duplex sidelink communication is used, then device complexity is reduced, but communication reliability deteriorates due to simultaneous transmission and reception constraints
Solution Approach 1:
The patent implements a feedback mechanism where the receiving device sends feedback information to the transmitting device about whether half duplex problems were detected. This feedback loop allows the transmitting device to adjust its behavior and retransmit if necessary, thereby improving communication reliability while maintaining the simplicity of half duplex operation.
Solution Approach 2:
The patent performs preliminary detection of half duplex problems before actual data transmission occurs. By detecting potential conflicts in advance and using feedback to communicate this information, the system can prevent transmission failures without requiring complex simultaneous transmit-receive capabilities.
2Reliability
If feedback mechanism is added to address half duplex issues, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The feedback mechanism uses simple feedback information exchanged between devices to detect and report half duplex problems. This straightforward approach improves reliability without introducing complex feedback processing, as the feedback carries only essential detection results rather than comprehensive communication state information.
Solution Approach 2:
The patent extracts only the critical feedback information needed to detect half duplex problems from the overall communication process. By taking out only the essential feedback elements rather than implementing complete bidirectional communication, the system achieves improved reliability with minimal added complexity.
Data Source
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AI summary
Apparatuses, methods, and systems are disclosed for using a configured feedback resource for feedback. One method (1200) includes transmitting (1202), to a device, configuration information on a transmission resource, wherein the configuration information comprises: resource information for a data transmission; a request for feedback; and a configuration message indicating configuration of a feedback resource. The method (1200) includes monitoring (1204) for feedback from the device on the feedback resource. The method (1200) includes transmitting (1206) the data transmission after the monitoring for feedback on the feedback resource.