Signal transmission method and device, and computer storage medium
摘要
說明書
For normal operation of a wireless system and a terminal device, the downlink access signal and the uplink access signal need to be provided respectively. The access signal is an essential signal for the wireless system. In the practical operation of the communication system and the terminal, the access signal needs to be continuously swept and transmitted. In addition to the access signal, other signals, such as reference signals used to measure, maintain, and track synchronization and channel conditions, also need to be swept and transmitted, so a time segment likewise carrying the sweep signal and other signals required to be swept in an access process may be referred as a sweep time interval (STI), and is classified into a downlink transmit sweep time interval (DL TX sweep time interval) and an uplink receive sweep time interval (UL RX sweep time interval) from the perspective of a base station. Correspondingly, the time segment is classified into a downlink receive sweep time interval (DL RX sweep time interval) and an uplink transmit sweep time interval (UL TX sweep time interval) from the perspective of a terminal. The subframe or the time interval for sending the sweep signal is generally used for sending the downlink access signal or the uplink access signal, and thus the subframe or the time interval for sending the sweep signal may also be referred as the subframe or the time interval for sending the access signal. The access signal herein include, but is not limited to, the synchronization signal, the signal in the broadcast channel, the random access signal, the scheduling request signal, and the like. In a real system definition, the time segment is not necessarily named as the STI, but belongs to the category of the STI as long as the time interval is related to the sweep and the access.
