Repeater Sync Detection Using Signal-Level Frequency Priority
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Solution Overview
Problem
Existing 5G NR relay systems face inefficiencies in synchronization detection due to the need to scan the entire frequency band for synchronization signals, which are arbitrarily disposed across multiple frequency bands, increasing detection time.
Innovation Solution
A repeater that determines a priority of frequency ranges based on signal levels to detect synchronization signal blocks, preferentially processing those with higher signal levels, thereby reducing unnecessary scanning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire frequency band is scanned to detect synchronization signal blocks in 5G NR, then all possible synchronization signals can be detected, but the synchronization detection time increases significantly
Solution Approach 1:
The repeater performs preliminary scanning of the frequency band to measure signal levels in different frequency ranges before detecting synchronization signal blocks. This preliminary action identifies high-signal-frequency ranges in advance, allowing the synchronization detection to focus only on these ranges rather than scanning the entire frequency band, thus reducing detection time while maintaining reliability
Solution Approach 2:
The frequency band is divided into multiple frequency ranges with different signal levels. The repeater applies different detection priorities to different frequency ranges based on their signal levels, focusing detection resources on high-signal-frequency ranges with higher priority. This local differentiation of detection quality based on signal characteristics reduces overall detection time while ensuring complete synchronization detection
2Reliability
If synchronization signal blocks are detected in all frequency ranges with equal priority, then detection thoroughness is maintained, but detection efficiency decreases
Solution Approach 1:
The repeater assigns different detection priorities to different frequency ranges based on measured signal levels. Frequency ranges with higher signal levels are assigned higher detection priority, meaning they are detected first or with more resources. This localized quality adjustment in detection priority based on signal characteristics maintains thoroughness in high-signal areas while improving overall detection efficiency
Solution Approach 2:
The repeater performs preliminary signal level measurements across all frequency ranges before synchronization detection. Based on these preliminary results, it establishes a detection priority order for different frequency ranges. This preliminary classification enables the subsequent synchronization detection to proceed efficiently by following the priority order, maintaining thoroughness while improving productivity
Data Source
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AI summary
A synchronization detection method of a repeater comprises receiving a communication signal comprising a plurality of synchronization signal blocks respectively belonging to different frequency ranges, determining a priority of a frequency range in which the plurality of synchronization signal blocks are to be detected based on signal level for each frequency range and detecting a synchronization signal block included in each frequency range according to the determined priority.