Multi-SSB Burst Sets for Wireless Synchronization
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Solution Overview
Problem
Current wireless communication technologies, such as LTE and NR, face challenges in improving spectral efficiency and supporting increased demand for mobile broadband access, particularly in managing synchronization signal blocks (SSBs) across different subcarrier spacings and use cases.
Innovation Solution
Implementing a method where a base station transmits multiple sets of SSB burst sets with varying parameters, including different subcarrier spacings, in a common carrier, allowing user equipment to select and receive the appropriate SSB burst sets based on its state and use case, optimizing for both coarse and fine time refinement and beam management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple sets of SSB burst sets with different subcarrier spacings are transmitted in a common carrier, then spectral efficiency is improved and mobile broadband demand is supported, but device complexity increases due to the need to manage multiple SSB configurations
Solution Approach 1:
The patent segments the SSB transmission into multiple distinct sets (first set, second set, third set) with different subcarrier spacings and parameters. Each set is transmitted in different time resources within the same carrier, allowing the base station to serve multiple use cases simultaneously. This segmentation enables the system to achieve high spectral efficiency by utilizing multiple SSB configurations without overwhelming complexity, as each configuration is managed independently.
Solution Approach 2:
The patent implements dynamic SSB configuration where the base station can flexibly select which SSB burst sets to transmit based on detected UE states. The system dynamically adjusts the transmission of different SSB sets (first, second, third sets with different subcarrier spacings) according to real-time conditions, allowing the system to adapt to changing spectral efficiency requirements while managing complexity through conditional transmission rather than always transmitting all configurations.
2Reliability
If multiple SSB burst sets with different parameters are transmitted in a common carrier, then beam management and time refinement are improved, but the complexity of detecting and measuring increases
Solution Approach 1:
The patent segments SSB detection into distinct processes for different SSB sets. The UE detects first SSB burst sets with first subcarrier spacing, second SSB burst sets with second subcarrier spacing, and third SSB burst sets with third subcarrier spacing as separate entities. This segmentation allows the UE to manage detection complexity by processing each SSB set independently with appropriate detection methods for its specific parameters, rather than attempting to detect all SSB configurations simultaneously.
Solution Approach 2:
The patent applies local quality by tailoring detection and measurement methods to the specific characteristics of each SSB set. Different detection strategies are used for different subcarrier spacings and SSB configurations based on their local requirements. For example, coarse time refinement uses one detection approach while fine time refinement uses another, and beam management detects parameters specific to each SSB set's configuration. This localized approach improves reliability for each specific SSB type while managing overall detection complexity.
3Adaptability or versatility
If a base station transmits multiple sets of SSB burst sets with varying subcarrier spacings, then adaptability to different use cases is improved, but the complexity of the transmission system increases
Solution Approach 1:
The patent implements universality by enabling a single base station to transmit multiple types of SSB burst sets (first, second, and third sets with different subcarrier spacings) within the same carrier. This multi-functional capability allows the base station to serve diverse use cases including initial access, handover, and time refinement simultaneously. The system achieves high adaptability by making the transmission system universally applicable to different scenarios without requiring separate dedicated systems for each use case.
Solution Approach 2:
The patent employs dynamics by enabling the base station to adaptively select which SSB burst sets to transmit based on detected UE states and current system conditions. The transmission system dynamically adjusts its configuration to match the specific needs of connected devices, transmitting appropriate SSB sets for initial access, handover, or time refinement as required. This dynamic adaptation improves versatility while managing complexity through conditional transmission rather than always maintaining all possible configurations.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may transmit a first set of synchronization signal block (SSB) burst sets with a first set of SSB parameters; and transmit a second set of SSB burst sets with a second set of SSB parameters, wherein the first set of SSB burst sets and the second set of SSB burst sets are transmitted in a common carrier. In some aspects, a user equipment (UE) may receive at least one SSB of the first set of SSB burst sets or the second set of SSB burst sets. Numerous other aspects are provided.