Terminal Device Uplink Transmission Timing Adjustment
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Solution Overview
Problem
Current wireless communication protocols limit terminals to send uplink signals on only one frequency at a time when operating in dual connectivity mode between LTE and NR systems, leading to performance losses due to discarded feedback signals and impaired transmission performance.
Innovation Solution
A method where a terminal device determines overlapping time elements for sending information on different carriers, allowing it to send information on both carriers by delaying transmission on one carrier until a subsequent time element, thereby avoiding system downlink performance losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal sends uplink signals on only one frequency at a time according to current protocol, then the terminal avoids simultaneous transmission conflicts, but transmission performance of the LTE system or NR system is affected due to discarded feedback signals
Solution Approach 1:
The patent applies dynamics by making the time element flexible and adjustable. The terminal dynamically determines time elements for sending information on different carriers, and can dynamically delay transmission on one carrier when time elements overlap. This dynamic time element adjustment allows the system to adapt to simultaneous transmission scenarios while maintaining reliable feedback signal transmission.
Solution Approach 2:
The patent applies preliminary action by having the terminal proactively determine time elements for information transmission before conflicts occur. When the terminal predicts that time elements for different carriers will overlap, it can preemptively delay transmission on one carrier to avoid the conflict, ensuring that both carriers can transmit feedback signals without loss.
2Productivity
If the terminal delays transmission on one carrier to avoid overlap, then simultaneous transmission on both carriers is enabled, but transmission time on one carrier is extended to a subsequent time element
Solution Approach 1:
The patent applies dynamics by making the time element flexible and adjustable. The terminal dynamically determines time elements for sending information on different carriers, and can dynamically delay transmission on one carrier when time elements overlap. This dynamic time element adjustment allows the system to adapt to simultaneous transmission scenarios while maintaining reliable feedback signal transmission.
Data Source
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AI summary
This application discloses an information transmission method and a related device. The method includes: determining, by a terminal device, a first time element and a second time element, where the first time element is a time in which the terminal device sends first information to a first network device on a first carrier, the second time element is a time in which the terminal device sends second information to a second network device on a second carrier, and the first time element and the second time element overlap in time; and when the terminal device determines to send the first information to the first network device on the first carrier in the first time element, sending, by the terminal device, the second information to the second network device on the second carrier in a third time element, where the first time element and the third time element do not overlap in time, and the third time element is a time element after the second time element in time. This application helps improve information transmission performance.