SMTC Reporting for Low-Power SS/PBCH Synchronization
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Solution Overview
Problem
The high power consumption of terminals due to blind detection of synchronization signal/physical broadcast channel (SS/PBCH) blocks during cell reselection or connection establishment is a significant issue in existing communication technologies.
Innovation Solution
A reporting method where a terminal transmits SMTC configuration information of a first cell to a network-side device, allowing the device to configure this information for other terminals, thereby avoiding blind detection and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a terminal reads SS/PBCH block through blind detection, then the terminal can obtain synchronization information, but the power consumption of the terminal increases
Solution Approach 1:
The network side device performs preliminary detection of SS/PBCH blocks and obtains SMTC configuration information in advance. This information is then provided to terminals through reporting mechanisms, allowing terminals to skip blind detection and directly use the pre-obtained synchronization information, thereby reducing power consumption while maintaining reliable synchronization acquisition
Solution Approach 2:
The network side device acts as an intermediary between the cell and the terminal. Instead of the terminal directly performing blind detection on SS/PBCH blocks, the network side device detects these blocks, extracts SMTC configuration information, and provides it to the terminal through reporting messages, thus eliminating the need for terminal-side blind detection and reducing power consumption
2Reliability
If a terminal performs blind detection of SS/PBCH block, then the terminal can acquire cell synchronization, but the reading rate of SS/PBCH block decreases
Solution Approach 1:
The network side device performs preliminary detection and obtains SMTC configuration information before the terminal needs to access the cell. This pre-acquired information is provided to the terminal, enabling the terminal to immediately use the synchronization information without performing time-consuming blind detection, thereby significantly improving the SS/PBCH block reading rate while ensuring reliable cell synchronization
Solution Approach 2:
The network side device detects SS/PBCH blocks and creates a copy of the synchronization information in the form of SMTC configuration data. This copied information is then provided to terminals, allowing terminals to use the synchronization data without needing to perform their own blind detection, thus accelerating the reading process while maintaining synchronization reliability
Data Source
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AI summary
This disclosure provides a reporting method, a receiving method, a terminal, and a network-side device. The reporting method includes: transmitting a reporting message to a first network-side device, where the reporting message carries already-recorded SMTC configuration information of a first cell.