5G Synchronization Signal Beam Configuration Adaptation
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Solution Overview
Problem
Current synchronization signal transmission in 5G communication systems faces challenges due to high path loss and limited flexibility, resulting in reduced coverage and performance, as existing technologies use a constant number of narrow beams without effectively notifying the terminal of beam configurations.
Innovation Solution
The method involves determining and transmitting synchronization signals with configurable beam configurations, allowing the transmitting end to adjust the synchronization signal based on practical requirements by dividing it into multiple groups with varying types of downlink synchronization signals, and notifying the receiving end through physical broadcast channels or higher layer signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If narrow beam synchronization signal transmission is adopted to combat high path loss in 5G, then coverage range is improved, but the number of beams becomes fixed and inflexible, making it difficult to adapt to different coverage and beam width requirements
Solution Approach 1:
The patent applies dynamics by making the beam configuration adaptable and changeable. Instead of using a fixed number of narrow beams, the system dynamically adjusts beam parameters including the number of beams, beam widths, and resource allocations based on different coverage requirements and terminal positions. This allows the synchronization signal transmission to transition between wide beam and narrow beam modes as needed.
Solution Approach 2:
The patent implements parameter changes by varying key transmission parameters such as the number of beams (N), beam widths, and resource block allocations. The system can adjust these parameters dynamically to match different coverage scenarios, thereby resolving the contradiction between maintaining reliable coverage and adapting to diverse operational requirements.
2Reliability
If multiple narrow beams are used for synchronization signal transmission, then path loss is compensated, but the terminal cannot effectively detect beam configurations, increasing detection complexity
Solution Approach 1:
The patent introduces an intermediary mechanism by establishing clear mapping relationships between synchronization signal resources and beam configurations. The terminal can detect beam configurations indirectly through these mappings without directly measuring complex beam parameters, thereby reducing detection complexity while maintaining accurate beam identification.
Solution Approach 2:
The patent uses sequence grouping and resource allocation patterns as distinctive identifiers for different beam configurations. Similar to color changes providing visual distinction, the system employs different sequence groups, frequency resources, and time resources to uniquely identify each beam configuration, enabling the terminal to easily detect and differentiate between multiple beams.
3Device complexity
If synchronization signal is transmitted through fixed transmission mode with constant beam number, then device complexity is reduced, but adaptability to different coverage requirements deteriorates
Solution Approach 1:
The patent segments the synchronization signal transmission into multiple configurable beam groups, each with distinct resource allocations and sequence assignments. This segmentation allows the system to maintain manageable complexity through structured organization while achieving high adaptability by selectively activating different segments based on coverage requirements.
Solution Approach 2:
The patent creates a universal beam configuration framework that can serve multiple functions and scenarios. The same basic transmission structure supports both wide beam and narrow beam modes, accommodating different coverage requirements without requiring entirely separate transmission systems, thereby balancing complexity and adaptability.
Data Source
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AI summary
Provided are a method and apparatus for transmitting a synchronization signal, and a method and apparatus for receiving the synchronization signal. The method for transmitting the synchronization signal includes: determining, by a transmitting end, the synchronization signal, transmitting, by the transmitting end, the synchronization signal determined to a receiving end, and notifying the receiving end of configuration information related to the synchronization signal determined.