DATA SENDING METHOD AND SYSTEM

摘要

Disclosed are a data sending method and system. A downlink area can be carried in a frame in various communication systems employing the time division duplex technology, wherein the downlink area contains one of a synchronization channel, basic frame information, a control channel area, and a downlink service channel, with the basic frame information carrying the contents required to decode the control channel area, and the synchronization channel being located in front of the basic frame information, the basic frame information being located in front of the control channel area, and the control channel area being located in front of the downlink service channel. A base station sends the frame to a terminal. The data sending technology in the present invention solves the problem that the control overhead of the existing wireless communication standards is large and the implementation complexity of the product is high by way of the setting and usage of key parameters such as the rational sub-carrier interval, the available number of sub-carriers, the number of protection sub-carriers, CP length and so on, which can better meet the demands of data users developing with high speed and the future development of the wireless communication industry.