Patent ID: 8310984
Filing Date: 2012-11-13
Classification: H04W

Abstract:
1. A control apparatus that performs packet communications with a mobile station and divides a coverage area into plural sectors so as to control the communications, the control apparatus comprising: a scheduling portion that selects a mobile station to which transmission is to be performed in each sector in accordance with a reception quality synthesized among sectors and imparted by the mobile station; a sector determination portion that selects a sector through which transmission is to be performed for the mobile station, the mobile station being selected in more than one sector by the scheduling portion; a scramble code selection portion that selects a scramble code to be allocated to the mobile station to which transmission is to be performed out of scramble codes allocated in advance for each sector; and a transmission portion that spreads transmission data using the scramble code selected by the scramble code selection portion and transmits the transmission data, wherein when handover is carried out for the mobile station for which the more than one sector is selected by the sector determination portion, the scramble code selection portion selects the scramble code for the mobile station for which the more than one sector is selected, the scramble code being the same as a scramble code used in a handover original sector, wherein when the handover is completed, the scramble code selection portion selects the scramble code that is used in a handover destination sector.