5G Synchronization Signal Period Adaptation for Variable Subframe Lengths
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Solution Overview
Problem
Designing synchronization signals corresponding to different subframe lengths in 5G communications networks is a challenging problem, as existing solutions do not effectively support varying subframe lengths for different services and deployment scenarios.
Innovation Solution
The method involves user equipment determining the subframe length of a serving cell and calculating the synchronization signal period based on predefined subframe length sets, allowing for synchronization signal design optimization across different subframe lengths with the same subcarrier spacing, reducing design complexity and improving resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sets of system parameters are supported for different services and deployment scenarios, then the adaptability of the 5G network is improved, but the device complexity increases
Solution Approach 1:
The patent applies universality by designing a unified synchronization signal structure that can serve multiple subframe lengths (1ms and 0.5ms) simultaneously. The same synchronization signal sequence and resource allocation mechanism are used across different TTI configurations, allowing the system to maintain adaptability while reducing the need for separate synchronization designs for each service type.
Solution Approach 2:
The patent utilizes parameter changes by dynamically adjusting the synchronization signal period and resource allocation based on the detected subframe length. When 0.5ms TTI is detected, the synchronization signal period is adjusted to 2ms; when 1ms TTI is detected, the period is set to 1ms. This allows the system to adapt to different services without increasing fundamental system complexity.
2Measurement precision
If synchronization signals are designed for different subframe lengths, then the measurement precision of service requirements is improved, but the manufacturing precision of the synchronization system increases
Solution Approach 1:
The patent applies segmentation by dividing the synchronization signal design into distinct configurations for different subframe lengths. Separate synchronization signal periods and resource allocation patterns are defined for 0.5ms and 1ms TTIs, allowing precise measurement and detection of different service requirements while maintaining manageable design complexity through structured segmentation.
3Reliability
If separate synchronization signal designs are implemented for different subframe lengths, then the reliability of service-specific synchronization is improved, but the loss of time for synchronization configuration increases
Solution Approach 1:
The patent applies preliminary action by pre-defining synchronization signal configurations for both 0.5ms and 1ms subframe lengths. The network can immediately activate the appropriate synchronization configuration based on the detected TTI type without requiring real-time calculation or reconfiguration, thereby maintaining high reliability while minimizing synchronization setup time.
4Productivity
If synchronization signal period is adjusted based on subframe length, then the productivity of resource utilization is improved, but the difficulty of detecting and measuring subframe length increases
Solution Approach 1:
The patent applies feedback by using the detected subframe length information to dynamically adjust the synchronization signal period and resource allocation. The system continuously monitors the TTI configuration and adjusts synchronization parameters accordingly, improving resource utilization productivity while maintaining accurate detection through closed-loop feedback mechanisms.
Data Source
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AI summary
Embodiments of the present invention provide an information transceiving method, apparatus, and system, and relate to the network application field. The information transceiving method includes: determining a subframe length of a serving cell; determining a synchronization signal period of the serving cell based on the subframe length of the serving cell; and sending or receiving information in the serving cell based on the synchronization signal period and the subframe length. In the present invention, the synchronization signal period of the serving cell is determined based on the subframe length of the serving cell, so that a design problem of synchronization signals corresponding to different subframe lengths in a 5G communications network is resolved.