Resource Block Arrangement for Continuous Channel Estimation
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Solution Overview
Problem
In current radio communication systems, such as those using the EUTRA technology, base stations face challenges in efficiently allocating resource blocks to mobile stations, leading to suboptimal communication performance due to discontinuous propagation channel characteristics and increased variance in reception quality measurements.
Innovation Solution
The system arranges physical resource blocks (PRBs) in a manner that they do not straddle multiple system bands, ensuring continuous propagation channel characteristics within each PRB, which allows for accurate channel estimation and improved reception quality measurements, thereby enabling efficient resource allocation and communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If resource blocks are allocated across multiple system bands, then frequency diversity is improved, but propagation channel characteristics become discontinuous and measurement variance increases
Solution Approach 1:
The patent segments resource blocks by restricting them to remain within a single system band rather than spanning multiple bands. This segmentation ensures that each resource block experiences continuous propagation channel characteristics, eliminating the discontinuities that would otherwise increase measurement variance and reduce reception quality accuracy.
2Productivity
If resource blocks are arranged to span multiple system bands, then resource utilization is improved, but channel estimation accuracy deteriorates due to discontinuous channel characteristics
Solution Approach 1:
The patent applies segmentation by confining resource blocks to individual system bands, creating discrete non-overlapping allocations. This ensures that channel estimation operates on continuous channel characteristics within each band, maintaining high accuracy while still achieving effective resource utilization through proper scheduling across multiple bands.
Data Source
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AI summary
The base station device includes: a signal transmission unit which transmits a signal in which data is assigned in a natural number of resource blocks located in a frequency axis in each of a plurality of bands and a signal including information specifying the plurality of bands to the mobile station device. The mobile station device includes: a signal reception unit which receives the signal including the information specifying the plurality of bands from the signal transmission unit via any of the plurality of bands, and receives the signal in which the data is assigned in the natural number of resource blocks located in the frequency axis in each of the plurality of bands from the signal transmission unit based on the information specifying the plurality of bands; and a data extraction unit which extracts data from the signal in which the data is assigned in the natural number of resource blocks located in the frequency axis received by the signal reception unit.