HD-FDD Resource Switching Gaps for Priority-Aware Signal Scheduling
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently handling half-duplex frequency division duplexing (HD-FDD) devices due to conflicting communication resources that require a switching time gap, leading to reduced transmission reliability and complexity issues.
Innovation Solution
Implementing a switching time gap in HD-FDD devices to avoid puncturing high-priority communication resources by determining the gap based on priority levels and timing of resource allocations, ensuring reliable data transmission without overlapping with reference signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a switching time gap is implemented to avoid puncturing high-priority communication resources, then transmission reliability is improved, but device complexity increases due to resource scheduling and priority determination requirements
Solution Approach 1:
The system performs preliminary determination of priority levels for first and second communication resources before the switching time gap is applied. By pre-establishing priority associations with communication resources and determining which resource has higher priority, the system avoids puncturing high-priority data during frequency switching, thereby improving transmission reliability while managing device complexity through advance planning
Solution Approach 2:
The system dynamically adjusts the switching time gap positioning based on priority determinations. When the first communication resource is determined to have higher priority, the switching time gap is positioned to avoid puncturing it; when the second resource has higher priority, the gap is positioned accordingly. This dynamic adaptation ensures optimal transmission reliability while managing device complexity through flexible resource allocation
2Reliability
If communication resources are allocated with different priorities and switching time gaps are determined based on priority levels, then data transmission integrity is improved, but resource allocation complexity increases
Solution Approach 1:
The system performs preliminary association of priority levels with communication resources before resource allocation conflicts occur. By pre-determining which communication resources have higher or lower priorities, the system can make informed decisions about switching time gap positioning without complex real-time calculations, thereby improving communication integrity while managing resource allocation complexity
Solution Approach 2:
The system changes the parameter of switching time gap positioning based on priority level comparisons. When priority levels differ between first and second communication resources, the system adjusts the switching time gap to protect the higher-priority resource. This parameter adaptation ensures communication integrity while managing resource allocation through systematic priority-based rules
3Device complexity
If half-duplex operations are implemented to reduce device complexity, then transmission reliability may be reduced due to conflicting communication resources requiring switching time gaps
Solution Approach 1:
The half-duplex device performs preliminary determination of priority levels for conflicting communication resources before executing frequency switching. By pre-identifying which resource has higher priority, the device can position the switching time gap to avoid puncturing critical data, thereby maintaining transmission reliability while keeping device complexity low through simple priority-based decision rules
Solution Approach 2:
The system changes the timing parameter of the switching time gap based on priority comparisons. When the first communication resource has higher priority, the switching time gap is positioned to avoid it; when the second resource has higher priority, the gap is positioned accordingly. This dynamic parameter adjustment ensures transmission reliability for half-duplex devices without requiring complex hardware
Data Source
AI summary
A method of operating a communications device, the method comprising determining that first and second resources are allocated for one of transmission and reception of signals by the device, the second resources being different from the first resources, determining that a time period separating the first and second resources is below a predetermined maximum switching time threshold, determining a first priority associated with the first resources, determining a second priority associated with the second resources, determining a start of a switching time gap based on the first priority and the second priority, controlling a receiver of the device to refrain from receiving signals during the switching time gap, controlling a transmitter of the device to refrain from transmitting signals during the switching time gap, and transmitting or receiving first data using at least a portion of one of the first and second resources.