Control system for electric tuning antenna of base station

Abstract

The invention discloses a control system for an electric tuning antenna of a base station, comprising at least one electric tuning antenna, at least one antenna control unit and a hand-held controller used for controlling the antenna control unit, wherein the hand-held controller comprises a main case, and a first serial port-to-RS485 circuit, a second serial port-to-RS485 circuit and a serial port-to-OOK (on-off keying) circuit which are arranged in the main case, as well as an AISG (antenna interface standard group) port and a BT (British telecom) connector which are arranged on the main case. By applying the control system for the electric tuning antenna of the base station, which adopts the hand-held controller to control the electric tuning antenna in the invention, upgrading on the traditional 2G system device is avoided; and the hand-held controller can be accessed to a system in two type of signal transmission modes, the hand-held controlled can be directly accessed to the system via the BT connector under the base station, thus the defects that the implementation difficulty is high, the cost is high, the reliability is poor and lightning stroke can be produced as an AISG control cable is deployed for a long distance are overcome.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a control system for an electric adjustable antenna of a mobile communication network. Background technique [0002] With the rapid development of mobile communication technology, China's 3G wireless communication system has widely used electrically adjustable antennas. The so-called electronically adjustable antenna refers to a mobile antenna that electronically adjusts the downtilt angle. Its principle is to change the amplitude of the vertical component and the horizontal component by changing the phase of the collinear array antenna element, so as to realize the change of the field strength of the composite component, thereby Makes the vertical pattern of the antenna downtilt. Practice has proved that when the downtilt angle of the electronically adjustable antenna changes in the range of 1° to 5°, its antenna pattern is roughly the same as that of the mechanical antenna;...

AI Technical Summary

Problems solved by technology

Since the 2G base station equipment is relatively mature, and the electronically adjustable antenna equipment is a new type of antenna equipment compared to the 2G system, if the electronically adjustable control function is developed to upgrade the existing 2G system equipment, it is necessary to add the electronically adjustable control to the 2G system software Function, because the original hardware does not support the ESC communication interface, so the hardware must also be upgraded, but the simultaneous modification of the software and hardware has brought a negative impact on the stability and maintenance of the system, and the cost of hardware upgrades is relatively high

If the co-site solution is used, the ESC upgrade of the 2G system must be guaranteed on the premise of ensuring the interoperability of the 2G and 3G systems. It is almost impossible to implement the co-site solution for antennas of different operators

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