Wireless Communication SCell Activation Delay Reduction
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Solution Overview
Problem
Current wireless communication systems face challenges in managing delay and interruption duration during the activation or deactivation of Secondary Cells (SCells), which affects system performance due to the long cycle of Synchronization Signal/PBCH Block (SSB).
Innovation Solution
A wireless communication method and device that allows flexible control of delay and interruption duration by using first indication information to trigger the processing procedure for SCells and indicating a first reference signal for use in the procedure, enabling faster Automatic Gain Control (AGC) adjustments and reducing interruption impacts on other cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If SSB is used for AGC setting and timing tracking in SCell activation, then synchronization accuracy is improved, but interruption duration increases due to the long cycle of SSB
Solution Approach 1:
The patent applies preliminary action by performing AGC setting and timing tracking based on SSB before the SCell is formally activated. The UE prepares the SCell in advance by adjusting gain and tracking timing using SSB signals, so that when activation occurs, these parameters are already optimized. This reduces the interruption duration during actual activation while maintaining synchronization accuracy.
Solution Approach 2:
The patent introduces dynamic adjustment of AGC and timing tracking parameters during the SCell activation process. Instead of relying solely on the static, long-cycle SSB, the system dynamically adjusts gain and timing based on real-time measurements and conditions, allowing faster convergence and reduced interruption while maintaining accuracy.
2Productivity
If SCell activation is performed quickly to reduce interruption duration, then system performance is improved, but processing accuracy may deteriorate due to insufficient time for AGC setting and timing tracking
Solution Approach 1:
The patent performs AGC setting and timing tracking in advance before formal SCell activation. The UE uses SSB signals to pre-adjust gain and timing parameters, ensuring that when activation occurs, the processing is already accurate. This separates the preparation phase from the activation phase, allowing fast activation without sacrificing precision.
Solution Approach 2:
The patent maintains continuous useful action by keeping the SCell in a prepared state where AGC and timing tracking are continuously refined using SSB signals. This continuous preparation ensures that when activation is triggered, the transition is rapid yet accurate, as the system has been continuously optimizing parameters leading up to activation.
Data Source
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AI summary
An embodiment of the present disclosure provides a wireless communication method and device. The method includes: obtaining first indication information, wherein the first indication information is used to indicate a first reference signal used in a processing procedure for a secondary cell, the processing procedure including at least one of activation, deactivation, addition or deletion; and executing the processing procedure based on the first indication information. In the embodiment, the first reference signal is indicated by the first indication information, and then the first reference signal is used to perform the processing procedure, which allows flexible configuration of the reference signal, and enables the terminal device to make faster AGC adjustment to reduce the interruption impact on other cells, thus enabling flexible control of delay and interruption duration in the processing procedure, reducing the terminal complexity, and saving system resources.