Chinese President Xi Jinping is planning to describe at the upcoming once-in-five-years congress of the ruling Communist Party the reunification of self-ruled democratic Taiwan with the mainland as a long-term goal, according to party and government sources.

A plan has been considered for Xi to state at the congress next month that the reunification would be indispensable to realizing Beijing's goal of attaining "the great rejuvenation of the Chinese nation," which the leader aims to bring about by the mid-21th century, according to the sources.

Xi is widely expected to secure an unprecedented third five-year term as general secretary of the party at the congress convened on Oct. 16 and a plan has been examined for a reference to Taiwan reunification to be included in an activity report that will be released by the Chinese leader, the sources said.