Unlicensed Band Data Channel Mapping for Collision-Aware Transmission
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently configuring data channels in unlicensed bands, particularly in managing channel access procedures to prevent collisions with other wireless systems and optimize signal transmission.
Innovation Solution
A method and apparatus for configuring data channels in unlicensed bands by identifying and utilizing specific resource blocks within subbands, considering channel access procedures, and mapping data accordingly to optimize signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If channel access procedure is performed in unlicensed band, then collision with other wireless systems is prevented, but transmission delay increases
Solution Approach 1:
The patent applies preliminary action by performing channel access procedures (clear channel assessment, random backoff) before actual data transmission. This ensures the channel is reserved in advance, preventing collisions with other wireless systems while managing the inherent transmission delay through structured timing mechanisms.
2Productivity
If resource blocks are allocated at boundaries of subbands, then spectral efficiency is improved, but interference with adjacent channels increases
Solution Approach 1:
The patent applies local quality by allocating resource blocks specifically at subband boundaries where spectral efficiency can be maximized. This localized resource allocation strategy improves overall spectral efficiency while the boundary-specific allocation naturally limits interference propagation to adjacent channels.
3Productivity
If data is mapped to all available resource blocks, then data throughput is maximized, but channel access complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the available resource blocks into multiple subbands. Data is then mapped to specific subbands rather than all resource blocks simultaneously, which maximizes throughput within each subband while reducing the overall channel access complexity through distributed management of smaller resource units.
Data Source
AI summary
Disclosed in various embodiments of the present disclosure are a method for transmitting and receiving a signal in a wireless communication system and a device for supporting same.