Abstract:
본 발명은 다중 홉 선박 통신망 기반의 자원할당 및 전송률 제어 방법에 관한 것으로, 보다 상세하게는 다중 홉 선박 통신망에서 각 홉 영역에 존재하는 선박의 분포 또는 선박들의 전송률에 기초하여, 부프레임(Sub-frame)의 크기를 설정하고 전송률을 제어하는 방법에 관한 것이다. 특히, 본 발명은 육상기지국이 각 홉 영역의 선박들에 대한 부프레임의 크기를 설정하고, 각 홉 영역에 존재하는 선박들이 과부하 여부를 판단하여 전송률을 제어함으로써, 전체 시스템의 성능을 크게 향상시킬 수 있으며, 다중 홉 선박 통신망에서의 효율적인 자원의 분배 및 사용이 가능하도록 함으로써, 신속하고 안정적인 데이터 전송이 가능하도록 하는 효과가 있다. 따라서, 다중 홉 통신 분야 및 해상 선박 통신 분야에서 경쟁력 및 신뢰성을 향상시킬 수 있음은 물론, 본 발명에 의한 기술을 기반으로 하여 다양한 통신분야에서도 동일 내지 유사한 효과를 제공할 수 있다.
Abstract:
A repeater in which a beam-former of the present invention is applied comprises an array antenna constructed in a linear shape, a plane, or a round shape; a phase converter for delaying different phases by receiving a signal from the array antenna; a beam-coupler/de-coupler for executing beam-forming by coupling the signals received from the phase converter; a phase converter control and beam direction selection module for estimating a direction in which the amplification rate of the repeater becomes the largest, by removing an interference signal returned in the estimating of the direction of the base station; and an amplifier for executing an amplification function using the signal of the desired direction of the base station. According to the present invention, the repeater controls the beam-former by removing the feedback signal by forming null to the feedback interference direction by maintaining the base station direction of the reference beam direction in which the signal is received from the base station. The present invention has an effect capable of developing the low cost and high performance assembled repeater because the performance of the repeater minimizes the increase of the calculation amount and the complexity of hardware applied to the beam-former and is similar to a case in which the beam-former of an adaptive beam method is applied.
Abstract:
The present invention relates to an apparatus for processing wireless transmission/reception signals of a wireless communication system for transmitting a single polarization signal, which includes a first transmission RF module for transmitting the wireless transmission/reception signals through a vertical polarization antenna, a first reception RF module connected to the vertical polarization antenna to process a signal received through the vertical polarization antenna, a second reception RF module connected to a horizontal polarization antenna to process a signal received through the horizontal polarization antenna, and a signal processing unit for transmitting a signal only to the vertical polarization antenna through the first transmission RF module in signal transmission, and for receiving signal through both of the vertical polarization antenna and the horizontal polarization antenna to diversity-combine and process the signals received through the first and second reception RF modules in signal reception. According to the apparatus for processing the wireless transmission/reception signals of the wireless communication system for transmitting the single polarization signal, polarization signals passing through mutually- different channel environments are received by using a beam former for polarization suitable for each channel environment, thereby reducing the interval between antennas while obtaining a beam gain and a diversity gain. [Reference numerals] (21) First transmission RF module; (31) First reception RF module; (32) Second reception RF module; (41) Modulator; (42) First demodulator; (43) Second demodulator; (50) Diversity combiner; (60) Control unit