Wireless UE Resource Mapping for Wideband Packet Reliability
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Solution Overview
Problem
In wireless communication systems, resource fragmentation occurs when a specific UE partially occupies resources in a scheduling mode, disrupting the transmission of large packets.
Innovation Solution
A method where a UE selects a transmission resource by allocating a first transmission resource region for narrowband signals and a second transmission resource region for wideband signals, with the second region being greater than the first and mapped to different subchannel indices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UEs autonomously select resources for direct communication, then resource allocation flexibility is improved, but resource fragmentation occurs disrupting large packet transmission
Solution Approach 1:
The frequency region is segmented into two distinct transmission resource regions: a first region for narrowband signals and a second region for wideband signals. This segmentation prevents narrowband UEs from fragmenting resources needed by wideband UEs, thereby resolving the contradiction between allocation flexibility and transmission reliability.
Solution Approach 2:
Different quality characteristics are assigned to different frequency regions: the first region is optimized for narrowband transmissions while the second region is optimized for wideband transmissions. This local quality differentiation ensures that wideband transmissions can secure sufficient contiguous resources without being disrupted by narrowband resource selections.
2Reliability
If transmission resource regions are allocated to edges of frequency region, then resource fragmentation is prevented, but resource selection complexity increases
Solution Approach 1:
The frequency region is divided into two segments with clear boundary definitions: edge regions for narrowband and central regions for wideband. This segmentation provides a systematic resource selection methodology that reduces complexity compared to unstructured autonomous selection, while maintaining allocation stability.
3Productivity
If second transmission resource region is greater than first transmission resource region, then wideband transmission efficiency is improved, but narrowband resource availability decreases
Solution Approach 1:
The frequency spectrum is segmented into two dedicated regions with appropriate size allocations: a larger second region for wideband transmissions and a smaller first region for narrowband transmissions. This segmentation ensures that wideband transmissions have sufficient resources for high efficiency while narrowband transmissions have dedicated resources for reliable operation.
Solution Approach 2:
Different resource quantities are allocated to different regions based on their specific transmission requirements: the second region has larger size optimized for wideband efficiency, while the first region has appropriate size for narrowband operations. This local quality optimization resolves the contradiction between wideband productivity and narrowband resource availability.
Data Source
AI summary
An embodiment of the present invention provides a method for transmitting a signal by a terminal in a wireless communication system, the method comprising a step of the terminal selecting a transmission resource, and a step of the terminal transmitting the signal to another terminal by using the selected transmission resource, wherein the transmission resource includes a first transmission resource range for transmission of the first signal, and a second transmission resource range for transmission of a second signal and wider than the first transmission resource range, wherein the first transmission resource range and the second transmission resource range are mapped onto different subchannel indices, and the first transmission resource range is allocated to an edge of a frequency range for the transmission of the first signal and the second signal.