Overlapping Synchronization Signals for Resource Efficiency
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Solution Overview
Problem
Current wireless communication systems, such as LTE and NR, face inefficiencies in resource utilization due to independent design of synchronization channels for terminal devices with different capabilities, leading to reduced resource allocation and increased implementation complexity.
Innovation Solution
The method involves generating synchronization signals where a first synchronization signal and a second synchronization signal overlap in time domain, with an intersection set in frequency domain resources, allowing for reduced frequency domain resource usage and shared resource utilization, thereby improving efficiency and simplifying implementation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If synchronization channels are separately designed for terminal devices with different capabilities, then synchronization performance for different terminal types is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent merges the resource allocation for different synchronization channels by allowing frequency domain overlap between synchronization signals for different terminal capabilities. Instead of completely separate frequency resources, the invention enables partial sharing of frequency domain resources while maintaining time domain separation, thereby improving resource utilization while preserving synchronization performance for both eMBB and NB-IoT terminals.
Solution Approach 2:
The invention makes frequency domain resources universal by enabling the same frequency resources to serve multiple synchronization channel purposes simultaneously. The overlapping frequency domain resources can support both wideband synchronization signals and narrowband synchronization signals, allowing resources to be multi-functional rather than dedicated to a single terminal type.
2Reliability
If synchronization channels are designed to be independent, then synchronization reliability is improved, but implementation complexity increases
Solution Approach 1:
The patent combines the implementation of multiple synchronization channels by allowing them to share frequency domain resources. The network device can generate and transmit multiple synchronization signals using overlapping frequency resources, reducing the complexity of managing completely independent channels while maintaining reliable synchronization through proper signal design and terminal device capability-based selection.
Data Source
AI summary
A signal sending method, a signal receiving method, and a device. The signal sending method includes: generating synchronization signals, where the synchronization signals include a first synchronization signal and a second synchronization signal; and sending the synchronization signals, where the first synchronization signal and the second synchronization signal overlap in time domain, and within a time domain resource in which the first synchronization signal and the second synchronization signal overlap, there is an intersection set between a frequency domain resource corresponding to the first synchronization signal and a frequency domain resource corresponding to the second synchronization signal. In this way, frequency domain resources occupied by the synchronization signals may be reduced, thereby saving frequency domain resources for another data transmission process. In addition, the two synchronization signals may further share a part of the frequency domain resources, thereby improving resource utilization.