Title:
符号分割多元接続移動通信システムでの基地局送信アンテナダイバーシティ装置及び方法
Document Type and Number:
Japanese Patent JP2004516741
Kind Code:
A
Abstract:
Disclosed is a base station transmission apparatus in a mobile communication system using transmit antenna diversity between a base station with a plurality of antennas and a mobile station. A modulator generates a complex symbol in response to a coded symbol. A first spreader generates a plurality of different complex symbols in response to the complex symbol, and generates a plurality of first spread complex symbols by spreading the generated complex symbols with a first orthogonal code assigned to the mobile station. A second spreader generates a plurality of same complex symbols in response to the complex symbol from the modulator, spreads the same complex symbols with a second orthogonal code, and generates a plurality of second spread complex symbols by multiplying the spread complex symbols by weights for the antennas, determined based on feedback information indicating reception status of a base station signal. A summer sums up the first complex symbols and the second complex symbols. Finally, a transmitter complex-spreads an output of the summer, shifts the complex-spread signals to a radio frequency band, and transmits the shifted signals through the antennas.
Inventors:
John-Yoong Huan
Sun-Jin Kim
Ju-ho Lee
Yeon-Suk Yi
Sun-Jin Kim
Ju-ho Lee
Yeon-Suk Yi
Application Number:
JP2002552213A
Publication Date:
June 03, 2004
Filing Date:
December 21, 2001
Export Citation:
Assignee:
Samsung Electronics Company Limited
International Classes:
H04B7/02; H04B1/707; H04B7/06; H04B7/26; H04J11/00; H04J13/00; (IPC1-7): H04B7/06; H04B1/707; H04B7/26
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Takashi Watanabe