Clock State Detection for TDD Base Stations
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Solution Overview
Problem
In time division duplex (TDD) systems, maintaining clock synchronization among base stations is critical, as clock desynchronization can lead to interference between downlink and uplink data, severely affecting service quality. Existing methods lack efficiency in detecting and addressing clock state changes across multiple base stations, leading to potential service disruptions and user experience issues.
Innovation Solution
A method and apparatus for detecting clock states of multiple base stations by analyzing detection results, where each base station receives and sends detection sequences at predetermined time points, allowing for grouping and identification of synchronization and out-of-synchronization states, enabling timely troubleshooting and rectification before interference occurs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional separate detection methods are used for each base station, then detection thoroughness is improved, but detection time and system complexity increase significantly
Solution Approach 1:
The patent combines detection sequences from multiple base stations into a unified detection framework. The network device coordinates detection across M base stations simultaneously, merging individual detection results into a comprehensive clock state assessment, thereby reducing total detection time while maintaining thoroughness
Solution Approach 2:
The detection mechanism serves multiple base stations universally through a single coordinated process. The same detection sequence and evaluation criteria are applied across all M base stations, enabling simultaneous detection of clock states for multiple stations rather than requiring separate dedicated detection for each
2Measurement precision
If comprehensive detection of all base stations is performed, then clock state monitoring accuracy is improved, but system complexity and resource consumption increase
Solution Approach 1:
The patent segments the detection process into distinct functional components: sequence generation, transmission coordination, reception, and result evaluation. This modular segmentation allows comprehensive multi-base station detection to be achieved through manageable, standardized steps rather than a monolithic complex system
Solution Approach 2:
The network device acts as an intermediary that coordinates the detection process across multiple base stations. It manages sequence transmission timing, collects detection results, and determines clock states, thereby simplifying the overall system architecture by centralizing control rather than requiring direct peer-to-peer detection between all base stations
3Reliability
If detection is performed after interference occurs, then response to actual problems is improved, but service quality and user experience deteriorate
Solution Approach 1:
The patent implements preliminary detection by monitoring clock states of base stations before interference actually occurs. By detecting clock synchronization issues in advance through the coordinated detection mechanism, the system can trigger warnings and enable preventive maintenance, avoiding the harmful effects of interference on service quality and user experience
Data Source
AI summary
This application provides a clock state detection method and apparatus, applied to the field of communications technologies, to detect clock states of M base stations. The method includes: receiving detection results of M base stations, where the detection result of each of the M base stations is used to indicate whether the base station receives a detection sequence sent by each of N neighboring stations of the base station, the N neighboring stations belong to the M base stations, both M and N are integers greater than or equal to 1, and N is less than M; and determining clock states of the M base stations based on the detection results of the M base stations.