TIME DIVISION DUPLEXING DATA TRANSMITTING METHOD,APPARATUS AND SYSTEM

摘要

A data transmitting method in a TDD system and a TDD system. The method includes the following steps: a base station sets up the length of the guard gap GP time slot and sets up the length of the DwPTS time slot and the UpPTS time slot in the unit of OFDM symbol length according to the current coverage area within the time length range occupied by the special area of the wireless half frame, and transmits the setup result to user devices; the user devices and the base station perform data transmission using the wireless half frame.