Antenna receiving-sending base station with multi-wave beam controllable antenna system
An antenna system and multi-beam technology, applied in diversity/multi-antenna systems, antennas, communication between multiple stations, etc., can solve problems such as increased BTS costs
Inactive Publication Date: 2002-08-07
KMW INC
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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
Method used
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Embodiment Construction
[0069] Below, see Figures 3 to 16C , to illustrate an antenna system 100 for controlling a single beam in radio frequency transmission according to a preferred embodiment of the present invention.
[0070] image 3 In , a block diagram of an antenna system used in a radio communication system is provided. The antenna system 100 includes a conversion unit 110 , a signal conditioning unit 120 and an antenna array 130 including P×Q radiators, wherein the signal conditioning unit 120 includes an output signal conditioning unit 122 and an input signal conditioning unit 124 . Here, P and Q are positive integers, respectively. The antenna system 100 also includes a control unit 700 that includes a beam steering board 710, a vertical motor driver 720, and a horizontal motor driver 730 (see Figure 7 ).
[0071] Figure 4 is a block diagram showing the structure of the conversion unit within the antenna system.
[0072] The converting unit 110 includes a first converting unit 41...
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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...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01Q3/24H01Q3/26H01Q3/30H04B7/08H04B7/10H04B7/26
CPCH01Q3/26H01Q3/30H01Q3/24
Inventor 金德龙文荣灿吉容燮李润培
Owner KMW INC