Synchronization Signal Block Configuration for 5G Initial Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current radio communication systems, particularly in fifth-generation cellular networks, face challenges in improving communication efficiency between terminal apparatuses and base station apparatuses, especially in high-frequency scenarios and diverse communication scenarios like eMBB, URLLC, and mMTC.
Innovation Solution
The implementation of advanced radio communication techniques such as Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix, Single-Carrier Frequency Division Multiplexing, and Discrete Fourier Transform Spread OFDM, along with Universal-Filtered Multi-Carrier and Filter-Bank Multi-Carrier schemes, are used to enhance communication efficiency by optimizing synchronization signal block and burst configurations, beam management, and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If synchronization signal blocks are transmitted at high frequencies, then communication capacity and data rate are improved, but initial access difficulty and synchronization precision deteriorate
Solution Approach 1:
The patent segments the synchronization signal transmission into multiple SS bursts within a burst set, where each burst contains multiple SS blocks. This segmentation allows the system to transmit synchronization signals at high frequencies while maintaining synchronization precision through multiple measurement opportunities and beam sweeping across different spatial directions.
Solution Approach 2:
The patent implements periodic transmission of synchronization signal bursts with configurable periodicities (e.g., 5ms, 10ms, 20ms). This periodic action ensures that terminals can acquire synchronization at high frequencies while the structured burst sets maintain precision through repeated measurements and beam training opportunities.
2Reliability
If multiple synchronization signal blocks are transmitted for beam management, then beam coverage and initial access reliability are improved, but signaling overhead and system complexity increase
Solution Approach 1:
The patent designs the synchronization signal block structure to serve multiple functions simultaneously: cell identification, frequency synchronization, time synchronization, and beam management. This multi-functionality reduces system complexity by consolidating multiple signaling purposes into a unified SS block framework that handles diverse initial access requirements.
Solution Approach 2:
The patent combines multiple synchronization signals and system information into integrated SS bursts and burst sets. By merging cell ID signals, synchronization signals, and beam management signals into a coordinated transmission structure, the system improves initial access reliability while reducing overall signaling overhead compared to separate transmissions.
3Adaptability or versatility
If synchronization signal burst sets are configured with flexible periodicities, then adaptability to different scenarios is improved, but configuration complexity and measurement overhead increase
Solution Approach 1:
The patent enables flexible configuration of SS burst set periodicities (e.g., 5ms, 10ms, 20ms) and time positions to adapt to different service scenarios such as eMBB, URLLC, and mMTC. This parameter flexibility allows the system to optimize for various latency and reliability requirements while maintaining manageable configuration complexity through standardized parameter sets defined in the specifications.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A terminal apparatus includes: a receiver configured to receive first information, second information, and third information; and a measuring unit configured to perform measurements. The first information includes information related to the measurements, the second information includes information for indicating a periodicity of one or more blocks, each of the one or more blocks includes a first synchronization signal, a second synchronization signal, and a physical broadcast channel, the third information includes information for indicating time positions of the one or more blocks, the information related to the measurements includes an object on which the measurements are to be performed at a certain carrier frequency, and the measurements are performed based on the periodicity of the one or more blocks.