Interleaved Data Transmission for Low-Latency LTE M2M Uplinks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current LTE data transmission methods for M2M communications require extensive signaling interactions for link synchronization, leading to low efficiency and significant delays, especially when handling small data packets from multiple devices.
Innovation Solution
A data transmission method that involves acquiring and using time-frequency resources and interleaver information to select a time synchronization code and interleaver for data, allowing for interleaving processing without initial link synchronization, thereby reducing signaling overheads and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If link establishment and synchronization are performed before data transmission in LTE M2M communications, then reliable data transmission is ensured, but signaling overhead increases and transmission delay increases
Solution Approach 1:
The patent applies preliminary action by pre-establishing synchronization between devices before actual data transmission is needed. Devices perform synchronization procedures in advance, storing synchronization state information, so that when small data packets need to be transmitted, the synchronization is already in place and no additional signaling is required at transmission time.
Solution Approach 2:
The patent extracts the synchronization procedure from the data transmission process. By separating synchronization as an independent preliminary step, the patent eliminates the requirement for signaling interactions during actual data transmission, allowing devices to transmit data immediately without re-establishing links.
2Reliability
If link establishment and synchronization are performed before data transmission in LTE M2M communications, then reliable data transmission is ensured, but signaling overhead increases
Solution Approach 1:
The patent applies preliminary action by pre-establishing synchronization between devices before actual data transmission is needed. Devices perform synchronization procedures in advance, storing synchronization state information, so that when small data packets need to be transmitted, the synchronization is already in place and no additional signaling is required at transmission time.
Solution Approach 2:
The patent extracts the synchronization procedure from the data transmission process. By separating synchronization as an independent preliminary step, the patent eliminates the requirement for signaling interactions during actual data transmission, allowing devices to transmit data immediately without re-establishing links.
3Reliability
If traditional LTE connection-based transmission is used for small data packets, then data integrity is maintained, but transmission efficiency decreases
Solution Approach 1:
The patent segments the communication process into distinct phases: a preliminary synchronization phase where devices establish and store synchronization state information, and a data transmission phase where data is sent using the pre-established synchronization. This segmentation allows small data packets to be transmitted efficiently without repeating the full connection establishment process.
Solution Approach 2:
The patent applies preliminary action by pre-establishing synchronization between devices before actual data transmission is needed. Devices perform synchronization procedures in advance, storing synchronization state information, so that when small data packets need to be transmitted, the synchronization is already in place and no additional signaling is required at transmission time.
Data Source
AI summary
Embodiments of the present invention disclose a data transmission method, device, and system, are applied to the field of communications, and can improve data transmission efficiency and reduce a time delay. The method includes: acquiring, by a sending device, a time-frequency resource and interleaver information that are to be used by to-be-sent data, where the interleaver information includes a correspondence between an interleaver and a time synchronization code, and there is a one-to-one correspondence between a time synchronization code and an interleaver; selecting a time synchronization code and an interleaver for the to-be-sent data according to the interleaver information; and performing interleaving processing on the to-be-sent data by using the selected interleaver, and sending, to a receiving device on the time-frequency resource, the interleaved to-be-sent data that carries the selected time synchronization code. The embodiments of the present invention are applied to data transmission.