Dynamic Beam Sweeping for Synchronization Signal Efficiency
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Solution Overview
Problem
Conventional wireless networks waste limited downlink synchronization resources by transmitting synchronization signals to subsectors with low mobility or low synchronization sensitivity user devices, while higher synchronization-sensitive or high-mobility devices in other subsectors may not receive adequate resources.
Innovation Solution
Implement a dynamic beam sweeping protocol that adjusts the transmission periodicity of synchronization signals based on the mobility factor and synchronization sensitivity of user devices, allocating more resources to subsectors with higher mobility or synchronization sensitivity and reducing resources to subsectors with lower mobility or sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional beam sweeping protocols transmit synchronization signals to all subsectors uniformly, then all user devices receive synchronization signals, but downlink synchronization resources are wasted on subsectors with low mobility or low synchronization sensitivity devices
Solution Approach 1:
The patent applies local quality by differentiating synchronization signal transmission based on subsector characteristics. Instead of uniform transmission to all subsectors, the system identifies subsectors with high mobility or high synchronization sensitivity user devices and prioritizes synchronization signal transmission to these specific subsectors, while reducing or eliminating transmission to subsectors with low mobility or low sensitivity devices, thereby optimizing resource allocation according to local needs
Solution Approach 2:
The patent implements dynamics by making the beam sweeping protocol adaptive rather than static. The system dynamically adjusts synchronization signal transmission based on real-time observations of user device mobility patterns and synchronization sensitivity, allowing the network to respond to changing conditions and optimize resource allocation continuously rather than using a fixed transmission schedule
2Reliability
If synchronization signals are transmitted frequently to all subsectors, then synchronization reliability is maintained, but network resources are inefficiently utilized
Solution Approach 1:
The patent applies parameter changes by modifying the transmission periodicity and frequency of synchronization signals based on subsector-specific parameters such as user device mobility factor and synchronization sensitivity. The system adjusts these transmission parameters dynamically, increasing frequency for subsectors with high mobility or high sensitivity devices while reducing frequency for subsectors with low mobility or low sensitivity devices, thereby optimizing both reliability and resource efficiency
3Productivity
If beam sweeping protocols are modified to be dynamic based on content usage, then resource allocation is optimized, but system complexity increases
Solution Approach 1:
The patent implements feedback by observing user device behavior patterns, content usage types, and mobility characteristics, then using this feedback information to dynamically adjust beam sweeping protocols. The system monitors network conditions and user device states, and automatically modifies synchronization signal transmission strategies based on these observations, creating a closed-loop system that optimizes resource allocation while managing complexity through intelligent control
Data Source
AI summary
Systems and methods are provided for dynamic beam sweeping a synchronization signal based on user device activity. An average synchronization signal transmission periodicity may be modified in response to determinations about the mobility of user devices, in response to determinations about the synchronization sensitivity of content being transmitted to user devices, or both. The modified beam sweeping protocol may responsively increase or decrease the average periodicity of a series of synchronization signals that are transmitted to a distinct portion of a sector using one or more distinct beamforms, increasing the synchronization efficiency of limited synchronization signals being transmitted to the cell.