NR-PBCH Reference Signal Initialization and Mapping
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Solution Overview
Problem
There is a need for defining a method of transmitting and receiving a reference signal for a broadcast channel in a New Radio (NR) system, as existing technologies do not adequately support the requirements of the IMT for 2020 and beyond program.
Innovation Solution
The method involves determining an initialization value for a reference signal associated with a physical broadcast channel (PBCH) based on synchronization signal (SS) block index or half-frame timing index, generating the reference signal, mapping it to resource elements, and transmitting it to a terminal along with the PBCH.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing transmission methods are used, then system compatibility is maintained, but the system cannot support diverse numerologies and scenarios required by IMT for 2020 and beyond
Solution Approach 1:
The patent applies dynamics by making the reference signal transmission adaptable to different numerologies and scenarios. The system dynamically adjusts transmission parameters based on the specific NR configuration requirements, allowing the same reference signal structure to serve multiple purposes across different operational modes while maintaining reliable communication.
Solution Approach 2:
The patent utilizes parameter changes by modifying reference signal transmission characteristics according to different numerologies and scenarios. By changing parameters such as time-frequency resource allocation, signal sequence initialization, and mapping patterns, the system achieves versatility across diverse NR applications while preserving transmission reliability through standardized procedures.
2Adaptability or versatility
If a standardized reference signal method is defined, then system compatibility improves, but implementation complexity increases
Solution Approach 1:
The patent applies universality by creating a reference signal transmission method that serves multiple functions across different NR scenarios. The same basic reference signal structure and transmission procedure are used universally, whether for initial access, channel estimation, or other purposes, thereby improving compatibility without requiring separate implementation for each scenario.
Solution Approach 2:
The patent uses segmentation by dividing the reference signal transmission into standardized modular components that can be independently configured. This segmentation allows the system to maintain a simple core transmission mechanism while enabling flexible adaptation to different scenarios through parameter configuration, thus reducing overall implementation complexity.
3Productivity
If reference signal transmission is optimized for specific scenarios, then transmission efficiency improves, but general applicability decreases
Solution Approach 1:
The patent applies dynamics by enabling the reference signal transmission to adapt its characteristics based on the operating scenario. The system can optimize transmission parameters for specific scenarios when needed, while maintaining a standardized framework that ensures general applicability across all NR scenarios through dynamic configuration.
Data Source
AI summary
Provided is a method and apparatus for receiving a reference signal. A wireless user device may determine, based on a synchronization signal (SS) block index and based on an index associated with a time interval, an initialization value associated with a reference signal for a physical broadcast channel (PBCH). The wireless user device may receive, based on the initialization value and based on a frequency domain shift value, the reference signal via at least one resource element (RE). The reference signal may be mapped, based on the frequency domain shift value, to the at least one RE. The wireless user device may receive the PBCH.