Gain control method and apparatus
AssigneeSunwave Communications Co., Ltd.
InventorsLumin Zhu, Hangdi Hong
Life of this patent
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Abstract
The present application relates to a gain control method and an apparatus, comprising an automatic gain controller. An input power of a PSS in an input signal is detected in real time, a rated power of a downlink PSS that acts as a gain control threshold of the automatic gain controller is acquired, and the automatic gain controller is controlled to adjust a value of gain attenuation according to magnitudes of the input power of the PSS and the rated power of the downlink PSS, which is used to adjust an uplink gain and a downlink gain.
Claims10
A gain control method, wherein the method comprises:
- detecting an input power of a primary synchronization signal (“PSS”) in an input signal in real time;
- acquiring a rated power of a downlink PSS that acts as a gain control threshold of an automatic gain controller;
- and
- controlling the automatic gain controller to adjust a value of gain attenuation according to magnitudes of the input power of the PSS and the rated power of the downlink PSS, which is used to adjust an uplink gain and a downlink gain;
- wherein the value of gain attenuation is used to adjust levels of the input signal of the uplink and downlink by controlling gain devices of a local machine and a remote machine, the value of gain attenuation is configured to adjust the level of the input signal of the downlink for gain adjustment, the value of gain attenuation corresponding to the local machine is transmitted to the remote machine synchronously, and the value of gain attenuation is also configured to control the level of the input signal of the uplink of the remote machine.
A gain control apparatus applied to a system requiring gain adjustment, the system requiring gain adjustment comprising at least an automatic gain controller, wherein the automatic gain controller is configured for
- detecting an input power of a primary synchronization signal (“PSS”) in an input signal in real time;
- acquiring a rated power of a downlink PSS that acts as a gain control threshold of an automatic gain controller;
- and
- controlling the automatic gain controller to adjust a value of gain attenuation according to magnitudes of the input power of the PSS and the rated power of the downlink PSS, which is used to adjust an uplink gain and a downlink gain;
- wherein the value of gain attenuation is used to adjust levels of the input signal of the uplink and downlink by controlling gain devices of a local machine and a remote machine, the value of gain attenuation is configured to adjust the level of the input signal of the downlink for gain adjustment, the value of gain attenuation corresponding to the local machine is transmitted to the remote machine synchronously, and the value of gain attenuation is also configured to control the level of the input signal of the uplink of the remote machine.
Dependencies are inferred from the claim text.