Abstract:
본 발명은 스마트 안테나 기지국 변조 장치에 관한 것이다. 스마트 안테나 기지국 시스템은 기존 기지국 시스템에 비하여 많은 가입자를 수용 및 통신 품질을 증가시킬 수 있는 점 등 많은 장점들을 가지지만, 기존 기지국 시스템에 비하여 여러 안테나를 사용함에 따르는 기지국 송/수신 부분의 복잡도 증가 문제와 기존 기지국과의 호환성 문제 등을 가진다. 본 발명에서는 이러한 스마트 안테나 시스템이 가지는 문제점을 해결하기 위하여 시분할 다중화 기법을 사용한 변조기 사용 및 섹터 빔 선택기와 TX 빔형성기를 사용 함으로써 다양한 섹터와 안테나 수에서도 쉽게 유연성 가지고 적용할 수 있는 스마트 안테나 기지국 변조 장치를 제공한다.
Abstract:
PURPOSE: A normalization apparatus is provided to reduce the size of hardware for system configuration and improve a real time processing speed. CONSTITUTION: A normalization apparatus comprises a multiplying unit for carrying out a multiplying operation required in a normalization process; a dividing unit for carrying out a dividing operation required in a normalization process through a binary log and subtracting operation; and a multiplexer(210) for synchronizing the signals received from a smart antenna receiver with a predetermined clock, and outputting the signals to the multiplying unit. The multiplying unit includes a binary log generator(220) for converting the signals input from the multiplexer into a binary log value and outputting the binary log value; a shift left(240) for outputting the output of the binary log generator into a double size; and a binary inverse log generator(250) for converting the output of the shift left into a binary inverse log value and outputting the binary inverse log value. The dividing unit includes a NORM binary log generator(270) for converting the NORM function value output from an adder into a binary log value and outputting the binary log value; a subtractor for subtracting the output of the NORM binary log generator from the output of a shift register(230); and a NORM binary inverse log generator(290) for converting the output of the subtractor into a binary inverse log value and outputting the binary inverse log value.
Abstract:
An interleaving/deinterleaving processing method, a channel encoding system using it and a computer readable recording media for realizing it is provided. The interleaver includes: an interleaving storing unit for storing data sequence; the writing address generating unit for obtaining inter-location offset of a memory on which symbols are to be written in order to perform a writing operation and for generating a writing address to be practically written on, data and a memory control signal; an address offset generating unit for receiving a middle value (MID_OFF) and a start signal from the writing address generating unit, the middle value and the start signal being used for obtaining an offset between an inter-location offset of the memory; a reading address generating unit for generating increasing the address offset generating unit originated signal to as much as a symbol's memory inter-location offset; the first and the second selecting unit for selecting appropriate signal between a control signal and address in the writing address generating unit and the reading address generating unit transferred writing operation needed reading operation, and in a real interleaving operation needed reading operation; and a third selecting unit for selecting appropriate symbol in the memory output signals and performed from the reading address generating unit transferred interleaving.
Abstract:
In an apparatus for a TFCI mapping in a wireless communication mobile station, and a method thereof, the apparatus includes an encoding unit for encoding a TFCI transmitted from a main control unit as a CPU; a TFCI mapping unit for generating necessary control parameter and a TFCI code by using a signal encoded by the encoding unit and a signal transmitted from the CPU; and a CPU for controlling the encoding unit and the mapping unit.