Antenna receiving-sending base station with multi-wave beam controllable antenna system

Abstract

An antenna system for controlling multi beam independently and a base transceiver station using the same are disclosed. The multi beam controllable antenna system includes: at least one first dividing unit for dividing an input signal into a plurality of first divided signals; at least one first phase shifting unit for shifting the first divided signals and generating first phase-shifted signals; at least one first combining unit for combining the phase-shifted signals and generating a combined signal; at least one second dividing unit for dividing the combined signal into second divided signals; at least one second phase shifting unit for shifting the second divided signals and generating second phase-shifted signals; and a controlling unit for generating a control signal which controls horizontal and vertical half-power beam widths and tilting angles of the input signal independently by controlling the first and the second dividing unit and the first and the second phase shifting unit.

Description

technical field [0001] The present invention relates to a wireless transceiver base station in a wireless communication system; in particular, it relates to a wireless transceiver base station with a multi-beam steerable antenna system in a wireless communication system, which can be changed according to the traffic volume change in a sector. Horizontal / vertical angles and tilt angles. Background technique [0002] From now on, wireless communication supports not only voice services but also high-speed multimedia services including data communication, video transmission services, etc. However, wireless resources necessary for wireless communication are limited. Therefore, various methods for efficiently reusing wireless resources have been studied. [0003] Generally, a wireless communication system includes a Mobile Switching Center (MSC), a Base Station Controller (BSC), a number of Base Transceiver Stations (BTS) and a number of Mobile Stations (MS). [0004] The MSC c...

AI Technical Summary

Problems solved by technology

First, neither antenna system can steer the radiation beam in the horizontal direction

[0020] Another problem with conventional antennas is the need for a number of phase shifters corresponding to the number of transmission lines in a conventional antenna system

[0025] Since the MCPA is an expensive device, the large capacity of the MCPA increases the cost of the BTS

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