Communication apparatus, wireless communication system and communication method

A communication apparatus in a wireless communication system including a terminal, a first base station forming a first cell, and a second base station forming a second cell adjacent to the first cell, comprising:

• a communication status acquisition unit configured to acquire a communication status in the second base station;
• and
• a control unit configured to eliminate cell identifier duplication between a cell identifier of the second cell and a cell identifier of another cell adjacent to the first cell based on a number of times that handover of the terminal from the first cell to the second cell failed.

-12. (canceled)

A communication method performed by a communication apparatus in a wireless communication system including a terminal, a first base station forming a first cell, and a second base station forming a second cell adjacent to the first cell, comprising:

• acquiring a communication status in the second base station;
• and
• eliminating cell identifier duplication between a cell identifier of the second cell and a cell identifier of another cell based on a number of times that the second base station received, from the terminal, a first message requesting for re-establishment of an RRC connection.

(canceled)