Variable SSB Periodicity for Spectrally Efficient Synchronization
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing synchronization signal block (SSB) transmission and reception to optimize resource utilization and improve spectral efficiency, particularly in evolving technologies like 5G New Radio (NR).
Innovation Solution
Implementing variable SSB periodicities within a time cycle, allowing for different SSB transmission and reception patterns during distinct portions of the cycle, with higher periodicity in certain phases to enhance synchronization and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single periodicity is used for SSB transmission throughout the entire time cycle, then the system is simple to implement, but spectral efficiency is reduced due to inability to adapt to varying synchronization needs
Solution Approach 1:
The patent applies dynamics by making the SSB periodicity variable rather than fixed. The system dynamically adjusts the periodicity of SSB transmissions based on the time cycle phase, using a first periodicity during a first portion of the time cycle and a second periodicity during a second portion. This allows the system to adapt to varying synchronization requirements while maintaining manageable complexity through structured periodicity switching.
2Reliability
If SSB transmission frequency is increased to improve synchronization, then synchronization performance is enhanced, but resource utilization deteriorates due to excessive resource consumption
Solution Approach 1:
The patent applies periodic action by implementing different SSB transmission periodicities for different portions of the time cycle. During the first portion, a first periodicity is used, and during the second portion, a second periodicity is used. This periodic variation allows the system to enhance synchronization reliability when needed while reducing resource consumption during other periods, optimizing the balance between synchronization performance and resource utilization.
3Productivity
If variable SSB periodicities are implemented to optimize resource utilization, then spectral efficiency is improved, but system complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the time cycle into distinct portions, with each portion having its own SSB periodicity configuration. The time cycle is segmented such that during a first portion, SSBs are transmitted according to a first periodicity, and during a second portion, SSBs are transmitted according to a second periodicity. This segmentation enables optimized spectral efficiency for different operational phases while managing complexity through structured, phase-based configuration.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, during a first portion of a time cycle, one or more synchronization signal blocks (SSBs) according to a first periodicity. The UE may receive, during a second portion of the time cycle, one or more other SSBs according to a second periodicity that is higher than the first periodicity. Numerous other aspects are described.