Synchronization Signal Block Configuration for Mixed UE Capabilities
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Solution Overview
Problem
Current wireless communication systems face challenges in accommodating both premium and NR-Light UEs due to mismatched synchronization signal block (SSB) bandwidths, leading to incompatibility and inefficiency, as SSBs configured for premium UEs exceed the capabilities of NR-Light UEs, causing communication failures and increased latency.
Innovation Solution
The system transmits distinct synchronization signal blocks with different configuration parameters tailored to specific user equipment capabilities, allowing premium UEs to receive SSBs with higher bandwidths while NR-Light UEs receive SSBs with reduced bandwidths, ensuring compatibility and meeting latency requirements of both types of UEs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single SSB with maximum bandwidth is transmitted for premium UEs, then the bandwidth capability of premium UEs is satisfied, but NR-Light UEs with limited bandwidth capability cannot receive the SSB
Solution Approach 1:
The patent divides the single SSB transmission into multiple SSBs with different bandwidth configurations. Specifically, it transmits a first SSB with a first bandwidth for premium UEs and a second SSB with a second bandwidth for NR-Light UEs. This segmentation allows each UE type to receive an SSB appropriate to its capabilities, resolving the contradiction between maximizing bandwidth for premium UEs and ensuring compatibility for NR-Light UEs.
Solution Approach 2:
The patent applies different bandwidth qualities to different target audiences. The first SSB is configured with higher bandwidth quality optimized for premium UEs with strong reception capabilities, while the second SSB is configured with lower bandwidth quality suitable for NR-Light UEs with limited bandwidth capabilities. This local differentiation of quality ensures each UE type receives optimally configured synchronization signals.
2Adaptability or versatility
If the SSB bandwidth is reduced to accommodate NR-Light UEs, then compatibility with NR-Light UEs is improved, but latency requirements and time resource utilization of premium UEs are adversely affected
Solution Approach 1:
The patent segments the SSB transmission into multiple versions with different bandwidths, allowing premium UEs to receive the first SSB with maximum bandwidth that meets their latency requirements, while NR-Light UEs receive the second SSB with reduced bandwidth. This eliminates the need to reduce bandwidth for all UEs, thereby preventing latency degradation for premium UEs while still accommodating NR-Light UEs.
Solution Approach 2:
The system dynamically selects which SSB to transmit based on the target UE type. The base station can adaptively choose between transmitting the first SSB for premium UEs or the second SSB for NR-Light UEs, or both in different time resources. This dynamic approach allows optimization for different UE types without compromising premium UE performance.
3Device complexity
If a single SSB configuration is used for both premium and NR-Light UEs, then device complexity is reduced, but communication failures occur for UEs with mismatched bandwidth capabilities
Solution Approach 1:
The patent segments the SSB configuration into multiple distinct configurations tailored to different UE types. Instead of using a single generic SSB that may fail for some UEs, the system transmits a first SSB configured for premium UEs and a second SSB configured for NR-Light UEs. This segmentation ensures that each UE type receives an appropriately configured SSB, dramatically improving communication reliability while the added complexity remains manageable.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit, for a first type of user equipment with a first user equipment capability, a first synchronization signal block associated with a first set of configuration parameters. The base station may transmit, for a second type of user equipment with a second user equipment capability that is different from the first user equipment capability, a second synchronization signal block associated with a second set of configuration parameters that is different from the first set of configuration parameters. Numerous other aspects are provided.