Initial AGC Setting for Faster 5G Received Signal Gain Control
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Solution Overview
Problem
In wireless communication systems, particularly in 5G networks, the automatic gain control (AGC) settling time is prolonged, affecting signal demodulation and decoding performance, and there is a need for an efficient method to configure an initial AGC value to reduce this settling time.
Innovation Solution
A method and apparatus that acquire information about the transmission device to determine an initial AGC value for signal processing, enabling the AGC operation to be performed efficiently, thereby reducing the AGC settling time and improving signal processing in wireless communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional AGC operation is performed without initial value configuration, then the AGC circuit can operate with simple structure, but the AGC settling time is prolonged affecting signal processing performance
Solution Approach 1:
The patent applies preliminary action by configuring an initial AGC value before the AGC operation begins. The terminal device determines an initial value for the AGC based on information about the transmission device (such as transmission power, antenna configuration, or channel conditions) and sets this as the starting gain value. This preliminary configuration allows the AGC to start from a more accurate gain level, significantly reducing the settling time required to reach the optimal gain value for signal demodulation and decoding.
2Reliability
If initial AGC value is determined based on transmission device information, then signal processing performance is improved, but information acquisition and processing requirements increase
Solution Approach 1:
The patent implements feedback by utilizing information about the transmission device to determine the initial AGC value. The terminal device receives information related to the transmission device (such as transmission power level, antenna configuration, or channel state information) and uses this feedback information to calculate or select an appropriate initial gain value. This feedback mechanism enables the AGC to adapt to different transmission conditions, improving the reliability of signal demodulation and decoding while keeping the processing complexity manageable through efficient information utilization.
Data Source
AI summary
The disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data rate beyond a 4th generation (4G) communication system, such as Long Term Evolution (LTE). An operation method and a terminal are provided. The method includes acquiring information and determining an initial value for an automatic gain control (AGC) operation for a signal received from a transmission device, receiving a signal from the transmission device, and performing the AGC operation for the received signal by using the initial value determined based on the information.