Wireless Packet Pre-Reservation with Threshold-Based Resource Sharing
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Solution Overview
Problem
In wireless communications systems, resource allocation for reservation signals is often inefficient due to wasted resources when packet transmissions are below a certain size threshold, leading to inefficient management and potential fragmentation of overall resources.
Innovation Solution
Wireless communications devices determine when to transmit reservation signals and select resources from a shared resource pool used for normal packet transmissions, or from a dedicated pool, optimizing resource usage by reusing unoccupied resources dedicated for reservation signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reservation signals are transmitted for all packet transmissions, then resource reservation reliability is improved, but resource waste increases when packet size is below threshold
Solution Approach 1:
The patent introduces a packet size threshold parameter that dynamically determines whether to transmit reservation signals. When packet size exceeds the threshold, reservation signals are transmitted to ensure reliability; when below the threshold, reservation signals are omitted to avoid resource waste. This parameter-based conditional approach resolves the contradiction by adapting the reservation behavior to actual packet characteristics.
2Reliability
If dedicated resource pool is used for reservation signals, then resource allocation reliability is improved, but overall resource efficiency deteriorates due to fragmentation
Solution Approach 1:
The patent merges the previously separate dedicated reservation resource pool with the normal packet transmission resource pool. Reservation signals and packet transmissions now share the same resource pool, eliminating resource fragmentation and improving overall resource efficiency while maintaining allocation reliability through proper resource selection and reservation mechanisms.
3Reliability
If reservation signals are transmitted frequently, then resource reservation reliability is improved, but latency increases due to additional overhead
Solution Approach 1:
The patent applies partial action by transmitting reservation signals only when necessary (i.e., when packet size exceeds the threshold), rather than for all transmissions. This selective approach maintains sufficient resource reservation reliability for large packets while avoiding the latency overhead of unnecessary reservation signal transmissions for small packets.
Data Source
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AI summary
Methods, systems, and devices for wireless communications are described. A device may determine a packet for transmission and determine whether to transmit a reservation signal prior to the transmission of the packet based in part on a condition. The condition may include, but is not limited to, a packet size, or a packet priority, or a combination thereof. According to the determination, the device may refrain from transmitting the reservation signal or allocate resources for the reservation signal from a same resource pool associated with the transmission of the packet or a dedicated resource pool according to a pre-reservation resource pattern.