| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the number of hand-overs from increasing, when the number of sectors increases or when the width of an antenna beam becomes narrow by disallowing a base station device to change a spread code, when the beam having the best reception quality is changed as a mobile station moves. SOLUTION: Information, multiplexed by multiplexing parts 103-1 to 103-n, is converted by radio parts 102-1 to 102-n to a radio frequency and transmitted from an antenna part 101 with a specified beam. Here, when the mobile station moves and then route having the best reception quality for the base station device 100 among routes of the radio parts 102-1 to 102-n and multiplexing parts 103-1 to 103-n changes, a route having the highest reception quality is newly selected. Namely, the information is transmitted to the mobile station via the route, but a spread part 116 does not change the spread code used for spreading and the information is spread by using the spread code before the charge of route.</p> |
