Configurable SS/PBCH Block Structure for One-Shot Detection
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing synchronization signals, particularly the SS/PBCH block structure, which affects energy consumption and detection performance in 5G/NR systems.
Innovation Solution
The proposed solution involves optimizing the SS/PBCH block structure by varying the number of OFDM symbols and resource blocks in the time and frequency domains, allowing for enhanced one-shot detection performance and energy savings at the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the SS/PBCH block uses a fixed structure with limited OFDM symbols, then the device complexity is reduced, but the detection precision deteriorates
Solution Approach 1:
The patent applies dynamics by making the SS/PBCH block structure configurable rather than fixed. The number of OFDM symbols (Nsymb) can be dynamically adjusted between 2-14 symbols, and the allocation of symbols for PSS (N1) and SSS (N2) can be varied. This dynamic structure allows the system to adapt to different detection requirements while maintaining manageable complexity through standardized configuration options.
2Measurement precision
If more OFDM symbols are allocated to PSS and SSS, then the detection precision is improved, but the use of energy increases
Solution Approach 1:
The patent applies parameter changes by allowing flexible configuration of Nsymb (total OFDM symbols), N1 (PSS symbols), and N2 (SSS symbols). This enables the system to optimize the balance between detection precision and energy consumption by adjusting these parameters according to specific operational requirements, rather than using a fixed allocation.
3Measurement precision
If the SS/PBCH block structure is optimized for one-shot detection, then the detection precision is improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the SS/PBCH block into distinct functional components with specific symbol allocations: PSS occupies N1 symbols for primary synchronization, SSS occupies N2 symbols for secondary synchronization, and remaining symbols are allocated to PBCH. This segmented structure with configurable parameters enables optimized one-shot detection while managing complexity through clear functional separation and standardized configuration options.
Data Source
AI summary
Methods and apparatuses for synchronization signal/physical broadcast channel (SS/PBCH) block structure(s). A method performed by a user equipment (UE) in a wireless communication system includes identifying a structure for a SS/PBCH block, the structure including a first number Nsymb of orthogonal frequency-division multiplexing (OFDM) symbols in a time domain and a second number NRB of resource blocks (RBs) in a frequency domain and identifying, from the Nsymb OFDM symbols, a third number N1 of OFDM symbols mapped for a primary synchronization signal (PSS), where N1>1. The method further includes identifying, from the Nsymb OFDM symbols, a fourth number N2 of OFDM symbols mapped for a secondary synchronization signal (SSS), where N2>1 and receiving the SS/PBCH block based on the structure.