Configurable Synchronization Signal Transmission in New Radio Systems
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Solution Overview
Problem
Current synchronization signal transmission designs in new radio wireless communication systems are complex due to fixed periodicity assumptions, leading to unnecessary complexity in synchronization signaling and detection algorithms, especially when synchronization signal periodicity is an integer multiple of a radio frame duration.
Innovation Solution
Configurable synchronization signal transmissions are implemented, allowing for asymmetric transmission of synchronization signals within a radio frame and over different frequencies, enabling flexible periodicity and timing offsets to reduce complexity and improve detection efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed periodicity assumptions are used for synchronization signal transmission, then system design is simplified, but detection complexity increases and efficiency decreases
Solution Approach 1:
The patent implements dynamic synchronization signal transmission where the base station configures different periodicities (e.g., 5ms, 10ms, 20ms, 40ms, 80ms, 160ms) based on UE states and network conditions. The UE adapts its detection strategy according to the configured periodicity, transforming the system from static to dynamic operation to optimize both complexity and efficiency.
Solution Approach 2:
The patent changes the periodicity parameter of synchronization signal transmissions based on different scenarios. By adjusting the periodicity value according to UE state (idle, connected, initial access) and deployment requirements, the system achieves optimal balance between signaling overhead and detection performance without fixed assumptions.
2Ease of operation
If synchronization signal periodicity is an integer multiple of radio frame duration, then transmission timing is simplified, but detection algorithm complexity increases
Solution Approach 1:
The patent applies different transmission strategies to different portions of the radio frame structure. Synchronization signals are transmitted in specific slots within frames according to configured periodicity, allowing simplified timing at the transmission side while enabling optimized detection algorithms that exploit the known local structure at the reception side.
Solution Approach 2:
The base station pre-configures the UE with synchronization signal periodicity and timing information before detection begins. This preliminary configuration allows the UE to prepare appropriate detection algorithms in advance, reducing real-time computational complexity while maintaining timing simplicity.
3Productivity
If configurable synchronization signal transmissions are implemented, then detection efficiency improves, but system complexity increases
Solution Approach 1:
The patent creates a universal synchronization signal transmission framework that handles multiple UE states (idle, connected, initial access) and different deployment scenarios through a single configurable mechanism. The same base station infrastructure supports various periodicities and timing configurations, achieving multi-functionality without proportionally increasing complexity.
Data Source
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AI summary
A method and apparatus for configurable synchronization signal transmissions that reduce complexity of cell synchronization in a new radio wireless communication system is disclosed. For example, the method and apparatus may include generating a first synchronization signal burst set having a first set of synchronization signal blocks, generating at least a second synchronization signal burst set having a second set of synchronization signal blocks, transmitting the first synchronization signal block over a first frequency, and transmitting the second synchronization signal block over a second frequency.