SS Block Identification via Reference Signal Frequency Position
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Solution Overview
Problem
In future radio communication systems, reliably and efficiently specifying synchronization signal block identification information for user terminals is challenging due to complexity and high complexity in existing methods.
Innovation Solution
A user terminal with a receiving section for synchronization signals and a control section that specifies identification information based on differences in demodulation reference signal sequences, mapping patterns, and frequency positions within the synchronization signal block.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If SS block identification information is indicated using existing methods, then the information can be transmitted, but the complexity increases and reliability decreases
Solution Approach 1:
The invention changes the parameter used for indicating SS block identification information from traditional methods to the frequency position of demodulation reference signals for broadcast channels. This parameter change enables the user terminal to derive the SS block index directly from the frequency domain position, achieving reliable and low-complexity identification without requiring complex processing or additional signaling overhead.
2Ease of operation
If traditional methods are used for indicating SS block identification information, then the process can be completed, but the complexity and computational burden increase
Solution Approach 1:
The invention enables the user terminal to self-determine the SS block identification information by autonomously deriving it from the frequency position of demodulation reference signals. This self-service approach eliminates the need for complex network-side indication or additional signaling, allowing the terminal to independently and easily obtain the SS block index through simple frequency domain position detection.
Data Source
AI summary
SS block identification information is identified with high reliability and/or low complexity. According to one aspect of the present invention, a user terminal has a receiving section that receives a synchronization signal (SS) block, which includes a synchronization signal and a broadcast channel; and a control section that specifies identification information of the SS block, based on at least one of a difference of demodulation reference signal sequences for the broadcast channel, a difference of mapping pattern of the reference signal sequences, and a difference of frequency position to which the reference signal sequences are mapped, among a plurality of symbols in the SS block.