DMRS Timing Indication for High-Frequency Wireless Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for transmitting timing information in high-frequency wireless communication systems face challenges in supporting multiple synchronization signal blocks, leading to high overhead and capacity requirements for terminals, particularly when measuring and reporting neighbor cell information.
Innovation Solution
The use of a demodulation reference signal (DMRS) to carry timing information, allowing terminals to determine their time domain location, reducing the need for explicit indication through physical broadcast channel (PBCH) processing and mapping coded bits of the PBCH to resources in a predetermined order.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If timing information is implicitly indicated by PBCH processing (different RV, scrambling code, CRC mask), then timing information can be conveyed to terminals, but the terminal overhead and capacity requirements increase significantly when supporting 64 or more SS blocks
Solution Approach 1:
The patent extracts the timing information indication function from the PBCH and relocates it to the DMRS. By taking out the timing indication burden from PBCH and placing it in DMRS, the system can support 64 or more SS blocks without increasing terminal overhead, as terminals can obtain timing information from DMRS before attempting PBCH decoding.
Solution Approach 2:
The DMRS serves as an intermediary that carries timing information between the base station and terminal. Instead of terminals directly extracting timing information from complex PBCH processing, the DMRS acts as a mediator that provides timing indications in a more efficient manner, reducing the computational burden on terminals.
2Adaptability or versatility
If 64 or more different SS block indexes are supported through implicit PBCH indication, then comprehensive coverage is achieved, but huge blind detection overhead is introduced requiring 64 or more different configurations to decode PBCH
Solution Approach 1:
The patent applies preliminary action by having the base station transmit DMRS carrying timing information before the terminal attempts PBCH decoding. This preliminary provision of timing information allows terminals to quickly identify valid SS blocks without having to attempt decoding of 64 or more different PBCH configurations, significantly reducing blind detection overhead.
3Measurement precision
If terminal needs to decode PBCH to obtain SS block index for neighbor cell measurement, then accurate measurement reporting is enabled, but additional PBCH reception overhead is introduced on measured neighbor cells
Solution Approach 1:
The patent extracts the timing information function from PBCH and places it in DMRS, allowing terminals to obtain SS block indexes for neighbor cell measurements without needing to decode PBCH on those cells. This extraction reduces terminal reception overhead while maintaining measurement precision.
Data Source
AI summary
Embodiments of the present invention provide a method and apparatus for transmitting and determining timing information, a storage medium, and a processor. The transmitting method includes: carrying timing information by using a demodulation reference signal (DMRS), where the timing information is used to indicate a terminal to determine a time domain location; and transmitting the DMRS carrying the timing information to the terminal.