5G AGC Gain Prediction for Rapid Received Power Hops
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Solution Overview
Problem
Conventional automatic gain control (AGC) schemes in 5G user equipment (UE) fail to maintain accurate signal tracking due to rapid fluctuations in received signal power, leading to potential communication interruptions and link saturation.
Innovation Solution
A gain control method that estimates the maximum received power of the next period based on current signal power, allowing for precise gain value determination and configuration to match signal power, thereby preventing communication interruptions and link saturation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional automatic gain control (AGC) schemes are used in 5G user equipment, then the system can maintain basic signal tracking, but the received signal power becomes unstable and the dynamic range becomes very large when signal power hops sharply
Solution Approach 1:
The patent applies preliminary action by estimating the received power of the next time slot in advance before the actual signal arrives. The gain control unit calculates the expected received power based on current transmit power information and channel conditions, then pre-adjusts the gain accordingly. This proactive approach allows the AGC system to prepare for rapid power changes before they occur, maintaining signal tracking stability during sharp power hops in 5G communications
Solution Approach 2:
The patent implements dynamics by making the gain control adaptive and time-varying rather than static. The gain control unit continuously updates the gain value based on real-time transmit power information and estimated received power for each time slot. This dynamic adjustment mechanism enables the system to respond flexibly to rapidly changing signal conditions, maintaining reliable communication even when received power hops sharply between time slots
2Adaptability or versatility
If the received signal power varies rapidly with large dynamic range, then the system must adjust gain frequently, but conventional AGC schemes cannot meet the AGC requirements under the 5G standard
Solution Approach 1:
The patent uses preliminary action to estimate the received power of the next time slot in advance, allowing the gain control unit to pre-calculate the appropriate gain value before the signal arrives. This proactive estimation based on current transmit power information and channel conditions enables the system to prepare for rapid power changes, achieving both high adaptability to power hops and fast signal tracking speed required by 5G standards
Solution Approach 2:
The patent implements feedback by continuously monitoring transmit power information and using it to update the received power estimation for the next time slot. The gain control unit adjusts the gain based on this feedback loop, creating a responsive system that adapts to changing power conditions. This feedback mechanism enables the AGC to meet 5G requirements by rapidly adapting to power hops while maintaining accurate signal tracking
Data Source
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AI summary
The present invention provides a gain control method and device, and a computer-readable storage medium. The method comprises: obtaining signal power of the current period; determining the maximum value of receiving power of a next period according to the signal power of the current period; and determining a gain value of the next period according to the maximum value of receiving power of the next period.