Synchronization Raster Point Configuration for 5G NR
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Solution Overview
Problem
Current synchronization signal processing solutions in 5G NR wireless communication systems are inadequate in terms of speed and customization, leading to inefficiencies in signaling and synchronization, which affects data rates, latency, and user experience.
Innovation Solution
The method involves identifying a frequency band and synchronization numerology supported by user equipment (UE), searching for synchronization signals within a subset of frequency bands, and utilizing synchronization raster points for efficient signal transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If current synchronization signal processing solutions are used in 5G NR systems, then system coverage and basic synchronization functionality are maintained, but search latency and power consumption increase, reducing data rates and user experience
Solution Approach 1:
The patent applies preliminary action by pre-configuring synchronization raster points and frequency band information in the UE before actual synchronization signal search. The UE is pre-provided with a subset of frequency bands and corresponding synchronization raster points, enabling it to directly jump to predetermined locations for signal detection without exhaustive searching, thereby reducing search latency and improving data rate performance
2Use of energy by moving object
If current synchronization signal processing solutions are used in 5G NR systems, then basic synchronization functionality is maintained, but power consumption increases due to extended search operations
Solution Approach 1:
The patent reduces power consumption by performing preliminary configuration of synchronization parameters including frequency band subsets and raster point mappings before the actual signal search. This pre-prepared information allows the UE to quickly locate synchronization signals without prolonged scanning, thereby reducing energy expenditure while maintaining reliable synchronization acquisition
3Adaptability or versatility
If comprehensive frequency band searching is performed for synchronization signals, then complete signal detection capability is achieved, but search time and processing complexity increase
Solution Approach 1:
The patent applies segmentation by dividing the complete frequency band into multiple subsets, where each subset contains synchronization raster points relevant to specific frequency ranges. The UE is configured with only the subset corresponding to its operating frequency band, enabling targeted search rather than exhaustive scanning across all possible frequencies, thus reducing search time while maintaining complete detection capability for supported bands
Solution Approach 2:
The patent implements local quality by providing customized synchronization raster point configurations tailored to specific frequency bands and UE capabilities. Different UEs receive different subsets of frequency bands and corresponding raster points based on their specific operating conditions, optimizing the search process for each local context rather than using a universal exhaustive approach
Data Source
AI summary
Various aspects described herein relate to techniques for synchronization channel design and signaling in wireless communications systems (e.g., a 5th Generation (5G) New Radio (NR) system). In an aspect, a method includes identifying a frequency band supported by a user equipment (UE), identifying one or more frequency locations based on the identified frequency band, and the one or more frequency locations are a subset of synchronization raster points used for synchronization signal transmission. The method further includes searching for at least one synchronization signal based on the one or more identified frequency locations.