IoT Terminal Uplink Synchronization via System Information Feedback
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Solution Overview
Problem
In mobile communication technology, IoT terminals face challenges in achieving uplink synchronization due to timer expiry, leading to potential data transmission failures.
Innovation Solution
The proposed solution involves an IoT terminal receiving system information from a network device when in a connected state, allowing the terminal to perform uplink synchronization based on the received information, thereby extending the synchronization duration and preventing timer-related failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal uses a timer to ensure uplink synchronization within a timing duration, then the terminal can maintain synchronization during the timer duration, but the terminal becomes unable to achieve uplink synchronization when the timer expires
Solution Approach 1:
The patent implements feedback by having the terminal receive system information from the network device during connected state, which includes timing information for uplink synchronization. This feedback mechanism allows the terminal to continuously update its synchronization status beyond the initial timer duration, resolving the contradiction between maintaining synchronization reliability and extending the synchronization duration.
Solution Approach 2:
The patent applies preliminary action by having the terminal receive and process system information in advance during connected state, before the timer expires. The terminal prepares the necessary timing parameters and synchronization configurations beforehand, enabling seamless continuation of uplink synchronization without interruption when the initial timer duration ends.
2Ease of operation
If the terminal waits for timer expiry to attempt synchronization, then the terminal can simplify the synchronization process, but data transmission may fail due to inability to achieve synchronization
Solution Approach 1:
The terminal performs preliminary actions by receiving system information and configuring timing parameters during connected state, before the timer expires. This advance preparation simplifies the subsequent synchronization process while ensuring reliability, as the terminal already has the necessary timing information ready to execute synchronization immediately when needed.
Solution Approach 2:
The patent ensures continuity of useful action by maintaining the synchronization process throughout the connected state without waiting for timer expiry. The terminal continuously receives system information and maintains timing alignment, eliminating gaps in synchronization and ensuring reliable data transmission without the need to simplify the process by waiting for timer completion.
3Duration of action of moving object
If the terminal receives system information continuously during connected state, then the terminal can extend synchronization duration, but the terminal increases processing overhead
Solution Approach 1:
The patent implements periodic action by having the terminal receive system information at specific intervals during connected state, rather than continuously. The network device transmits system information periodically, and the terminal processes this information at designated times, extending synchronization duration while controlling processing overhead through structured periodic operations.
Solution Approach 2:
The terminal performs self-service by autonomously processing received system information and configuring its own synchronization parameters without requiring complex external control. The terminal independently manages the timing duration extension and synchronization process, reducing the need for additional processing complexity while achieving extended synchronization.
Data Source
AI summary
A synchronization method is performed by an Internet of Things (IoT) terminal. The method includes: when the IoT terminal is in a connected state, receiving system information from a network device, and performing uplink synchronization based on the system information. The system information is configured for the IoT terminal to perform uplink synchronization. A synchronization method, performed by a network device, includes sending system information to an IoT terminal, wherein the system information is configured for the IoT terminal to perform uplink synchronization, and the IoT terminal is in a connected state.