| 摘要 |
<p>PURPOSE: A multiple antenna transmission system for feeding back an index of a code word matrix is provided to enable a base station and a terminal to recognize a channel between the base station and the terminal in which transmission antennas are installed and enable the user to use a new code book to provide feedback information to the base station and generate a transmission signal for the terminal using the new code book and feedback information. CONSTITUTION: A multiple antenna transmission system for feeding back an index of a code word matrix comprises the following steps. A channel between a base station(200) and a terminal in which transmission antennas are installed is recognized. A previous code book is updated to a new code book in consideration of a change of a channel according to time flow. The previous code book is updated to the new code book based on a time correlation coefficient of a null or corresponding information thereof.</p> |
