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Gain parameter adjusting method and device, and equipment

A gain parameter and adjustment method technology, applied in transmission monitoring, power management, electrical components, etc., can solve the problems of gain parameter fluctuation, affecting synchronization performance, and large fluctuation of AGC gain parameter.

Active Publication Date: 2020-12-25
UNISOC CHONGQING TECH CO LTD
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  • Claims
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Problems solved by technology

However, when there is uplink subframe interference or the signal is empty, the gain parameter of AGC fluctuates greatly
During synchronous detection, the AGC whose gain parameter fluctuates greatly cannot keep the power of the synchronous signal within a reasonable range, resulting in the inability of electronic equipment to demodulate and obtain accurate synchronous signals, which affects the initial synchronous performance

Method used

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  • Gain parameter adjusting method and device, and equipment
  • Gain parameter adjusting method and device, and equipment
  • Gain parameter adjusting method and device, and equipment

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0051] With the continuous maturity and improvement of the Long Term Evolution system (LTE) system, there are more and more electronic devices using the LTE technology. In a wireless communication system, due to the fading effect of the wireless channel, the signal power received by the receiver of the electronic device fluctuates within a large range.

[0052] After the electronic device is turned on, the electronic device needs to perform initial synchronization. During the initi...

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Abstract

The embodiment of the invention provides a gain parameter adjusting method and device, and equipment The gain parameter of AGC is adjusted according to the maximum RSSI average power of each OFDM symbol in an RSSI calculation time interval containing a CRS, so that the gain parameter of AGC does not fluctuate greatly. Therefore, after the received signal power of a downlink sub-frame is adjusted based on the gain parameter, the signal power of the downlink sub-frame can be in a reasonable range, the electronic equipment can demodulate the downlink sub-frame to obtain an accurate synchronization signal, and the initial synchronization performance is improved.

Description

technical field [0001] The present application relates to the technical field of mobile communication, and in particular to a gain parameter adjustment method, device and equipment. Background technique [0002] With the continuous maturity and improvement of mobile communication technology, the application environment of electronic equipment is becoming more and more extensive. In a mobile communication system, due to channel fading effects, the signal power received by electronic devices fluctuates within a relatively large range. During the initial synchronization process, the electronic device is in the receiving state. The electronic device can demodulate the downlink subframe to obtain a synchronization signal to complete initial synchronization. [0003] In order to complete the initial synchronization, the electronic device usually needs to use automatic gain control (Auto Gain Control, AGC), so that the signal power adjusted by the AGC is within a reasonable range...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/52H04B17/318
CPCH04W52/52H04B17/318
Inventor 朱建东胡磊桂竟晶杨江
Owner UNISOC CHONGQING TECH CO LTD