Radio communication system, base station apparatus, terminal apparatus, and radio communication method in radio communication system

A radio communication method in a radio communication system for performing radio communication between a first and a second base station apparatuses which includes one or more of cells or sectors, and a terminal apparatus, the method comprising:

• performing a scrambling process to a first and second transmission data respectively by using a common scrambling code when the first and second transmission data differing each of the cells or sectors are transmitted to the terminal apparatus, by the first and second base station apparatuses;
• transmitting the scrambling processed first and second transmission data to the terminal apparatus respectively, by the first and second base station apparatuses;
• and
• receiving the first and the second transmission data and performing descrambling process to the first and the second transmission data by using the scrambling code.

A base station apparatus for performing radio communication with a terminal apparatus and with other base station apparatus including one or more of cells or sectors, the apparatus comprising:

• one or more of the cells or sectors;
• a process unit which performs a scrambling process to a first and second transmission data respectively by using a common scrambling code when the first and second transmission data differing each of the cells or the sectors are transmitted to the terminal apparatus and the other base station respectively;
• and
• a transmission unit which transmits the scrambling processed first or second transmission data to the terminal apparatus.

A radio communication system comprising:

• a first and second base station apparatuses which includes one or more of cells or sectors respectively;
• and
• a terminal apparatus, wherein
• the first and second base station apparatuses and the terminal apparatus perform radio communication,
• the terminal apparatus includes:
• a process unit which performs a scrambling process to a first and second transmission data differing each of the cells or the sectors by using a common scrambling code;
• and
• a transmission unit which transmits the scrambling processed first and second transmission data to the first and the second base station apparatuses respectively, and
• the first and second base station apparatuses includes:
• a reception unit which receives the first and second transmission data and performs descrambling process to the first and second transmission data by using the scrambling code.

A radio communication method in a radio communication system for performing radio communication between a first and second base station apparatuses including one or more of cells or sectors and a terminal apparatus, the method comprising:

• performing a scrambling process to a first and second transmission data differing each of the cells or the sectors by using a common scrambling code, by the terminal apparatus;
• transmits the scrambling processed first and second transmission data to the first and the second base station apparatuses respectively,by the terminal apparatus;
• and
• receiving the first and the second transmission data, and performing descrambling process to the first and the second transmission data by using the scrambling code.

A radio communication system comprising:

• a base station apparatus includes a plurality of sectors and a first and second communication unit in each of the sectors;
• and
• a terminal apparatus, wherein
• the base station apparatus and terminal apparatus perform radio communication,
• the first and second communication unit includes respectively:
• a process unit which performs a scrambling process to a first and second transmission data when the first and second transmission data differing each of the sectors are transmitted to the terminal apparatus respectively;
• and
• a transmission unit which transmits the scrambling processed first and second transmission data to the terminal apparatus respectively, and
• the terminal apparatus includes:
• a reception unit which receives the first and second transmission data, and performs descrambling process to the first and second transmission data by the scrambling code.

A radio communication system comprising:

• a base station apparatus includes a plurality of sectors, and a first and second communication unit in each of sectors;
• and
• a terminal apparatus, wherein
• the base station apparatus and terminal apparatus perform radio communication,
• the terminal apparatus includes:
• a process unit which performs a scrambling processes to each of a first and second transmission data differing each of the sectors by using a common scrambling code;
• and
• a transmission unit which transmits the scrambled processed first and the second transmission data to the terminal apparatuses respectively, and
• the first and second communication units of the base station apparatus receives the first and second transmission data respectively, and performs descrambling processes to the first and the second transmission data by using the scrambling code.