Synchronization Signal Block QCL Indicator for Signaling Overhead Reduction
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Solution Overview
Problem
In communication systems with many synchronization signal blocks, the monitoring complexity for user equipment (UE) during initial access is high due to the large amount of beam repetition information required, leading to increased signaling overhead.
Innovation Solution
The proposed solution involves acquiring a first Q value or a second Q value to determine whether two or more synchronization signal blocks have a quasi co-location (QCL) relationship, or to determine a synchronization signal block index. This allows the UE to accurately learn beam repetition information and reduce signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If beam repetition is performed to improve coverage of synchronization signal blocks, then coverage requirement is satisfied, but monitoring complexity for user equipment increases
Solution Approach 1:
The patent segments the beam repetition information by introducing a QCL relationship indicator that divides synchronization signal blocks into groups with identical beam characteristics. This allows the UE to process blocks in segments rather than individually, reducing monitoring complexity while maintaining coverage.
Solution Approach 2:
The patent changes the parameter representation by using a QCL relationship indicator (first Q value or second Q value) to represent multiple beam parameters. This parameter transformation reduces the amount of information the UE must monitor while preserving the essential beam characteristics needed for coverage.
2Loss of information
If beam repetition information is notified through signaling, then user equipment can identify synchronization signal blocks, but signaling overhead increases
Solution Approach 1:
The patent merges multiple beam repetition information elements into a single QCL relationship indicator. By combining the information about multiple synchronization signal blocks into one indicator value, the signaling overhead is reduced while the essential beam repetition information is preserved.
Solution Approach 2:
The patent uses a compact representation (QCL indicator) that copies only the essential characteristics of beam repetition information. Instead of transmitting full beam details for each synchronization signal block, the system transmits a reference indicator that allows the UE to infer the necessary information.
Data Source
AI summary
The present disclosure provides a communication method, including: acquiring a first Q value or a second Q value, determining, based on the first Q value or the second Q value, whether two or more than two synchronization signal blocks have a quasi co-location relationship, or determining a synchronization signal block index of a synchronization signal block.