SSB Mapping for Higher Spectrum Compatibility
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Solution Overview
Problem
Current SSB mapping schemes fail to provide compatibility among various combinations of subcarrier spacings and do not account for different Cyclic Prefix (CP) lengths, leading to poor compatibility when using higher frequency spectrum.
Innovation Solution
The proposed techniques involve mapping Synchronization Signal Blocks (SSBs) to multiple symbols with different subcarrier spacings and generating transmission patterns that consider various CP lengths, ensuring compatibility across multiple subcarrier spacings and CP configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If SSB mapping schemes use higher spectrum frequencies, then spectral efficiency and capacity are improved, but compatibility among various subcarrier spacings and CP lengths deteriorates
Solution Approach 1:
The patent applies parameter changes by defining multiple SSB mapping patterns corresponding to different subcarrier spacings (15kHz, 30kHz, 60kHz, 120kHz, 240kHz) and different CP lengths (normal and extended). Each pattern adjusts the time-frequency resource allocation parameters to maintain compatibility across various configurations while enabling higher spectrum frequency usage for improved spectral efficiency
Solution Approach 2:
The patent implements universality by creating a unified SSB mapping framework that works across multiple subcarrier spacings and CP lengths. The solution provides a universal mapping approach that adapts to different frequency ranges and deployment scenarios, allowing the system to maintain compatibility while supporting diverse configuration requirements
2Reliability
If SSB mapping schemes are designed for specific subcarrier spacings, then transmission performance is improved, but adaptability to different subcarrier spacings and CP lengths deteriorates
Solution Approach 1:
The patent employs parameter changes by establishing distinct SSB mapping patterns for each subcarrier spacing value (15kHz, 30kHz, 60kHz, 120kHz, 240kHz) and for both normal and extended CP lengths. This allows the system to optimize transmission performance for each specific configuration while maintaining the ability to adapt to different scenarios through parameter selection
Solution Approach 2:
The patent applies dynamics by making the SSB mapping configuration adaptable and flexible. The system can dynamically select appropriate mapping patterns based on the actual subcarrier spacing and CP length being used, allowing optimal performance for each specific deployment scenario while maintaining broad compatibility
Data Source
Figure 1A~1B
Figure 2A~2D
Figure 2E~3A
AI summary
Methods, apparatus, and systems for providing Synchronization Signal Block (SSB) mapping schemes are described. The techniques can be implemented in various embodiments to allow the transmission of SSB using higher spectrum frequencies. The techniques also take into account of various Cyclic Prefix (CP) lengths for combability concerns. In one example aspect, a wireless communication method is disclosed. The method includes mapping a synchronization signal block to multiple symbols having a first subcarrier spacing and generating a transmission pattern for a first time interval that includes the multiple symbols for the synchronization signal block. The multiple symbols are from a set of non-consecutive candidate symbol groups.