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RF unit and its signal amplitude adjusting method

A radio frequency unit and signal technology, applied in the field of communication, can solve the problems of limited number of access users, etc., achieve the effect of increasing the limit capacity, reducing adverse effects, and eliminating AGC inconsistency

Active Publication Date: 2014-04-09
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the number of access users within the coverage of a single radio frequency unit is greatly limited

Method used

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  • RF unit and its signal amplitude adjusting method
  • RF unit and its signal amplitude adjusting method
  • RF unit and its signal amplitude adjusting method

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Embodiment Construction

[0033] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0034] figure 1 is a block diagram of a multi-radio unit system. like figure 1 As shown, multiple radio frequency units 101 are distributed in different places to process uplink radio frequency demodulation, AGC and AD conversion. The radio frequency unit is connected to the hub 102 through a cable 105 (network cable or optical fiber or cable, etc.). The hub 102 superimposes uplink signals belonging to the same cell, distributes downlink signals, and processes and sends and receives control and maintenance information (including RTWP, etc.). Hub 102 and base station or BU 103 are connected by cables 106 . The base station or BU 103 completes baseband processing o...

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Abstract

The invention provides an audio frequency unit and a signal amplitude adjusting method thereof, the audio frequency unit comprises an automatic gain control and analog-to-digital conversion module and a control maintenance module, and is characterized in that: the audio frequency unit also comprises the control maintenance module which is used for calculation according to a measuring result of a received wideband signal total power measuring module and for distribution of a parameter obtained by calculation to the automatic gain control and analog-to-digital conversion module, wherein, the parameter is an adjustment range target value AmpT. By adoption of the invention, AGC inconsistency of various audio frequency units can be eliminated in a certain degree, thereby bad affection brought then is lightened and the ultimate capacities of coverage areas of various audio frequency units are greatly improved.

Description

technical field [0001] The present invention relates to the technical field of communication, and more specifically, to a radio frequency unit in a Code Division Multiple Access (CDMA) wireless communication system and a method for adjusting the signal amplitude of the signal of the radio frequency unit. Background technique [0002] In the code division multiple access wireless communication system, in order to expand the coverage area of ​​the cell, especially to expand the coverage area of ​​the indoor complex environment, it is necessary to place the radio unit (Radio Unit, hereinafter abbreviated as RU) in different places. The received radio frequency signal is demodulated and converted into a digital signal, and then the digital signal of these radio frequency units is sent to a hub through a cable (network cable or optical fiber, etc.), and the digital signals of multiple radio frequency units are superimposed in the hub. The superimposed signal is sent to the baseba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005H04B7/26H04B17/00H04B17/327
Inventor 丁杰伟廖娟施汉军李学焕
Owner ZTE CORP