Signal transmission method and device, and computer storage medium
摘要
說明書
The message here is a synchronous companion message to distinguish the message from other types of messages. Most of the content carried by the message is related to the synchronization signal or related to the access and tracking synchronization. The message and the synchronization signal are coupled and bound. The SS exists and then a synchronous companion message must exist. When the port of the synchronization signal is different from the port of the message signal, the synchronization signal cannot be used to demodulate the message. For example, the synchronization signal is sent by using a single antenna port (reducing the complexity of a blind detection), the message signal is sent by using a space frequency block code (SFBC) multi-antenna port, and the antenna ports used at this time are different, so the synchronization signal cannot be used to demodulate the message.
When the port of the MRS is different from the port of the synchronization signal, for example, when the MRS sends different content in different beam directions while the message signal sends the same content in different directions, the MRS cannot be used to demodulate the message signal either.
Combining the above two points, a demodulation measurement reference signal dedicated to the message signal needs to be used for the demodulation of the message signal. In other cases, for example, when the message signal and the synchronization signal (SS) or the MRS use the same port, the SS or the MRS may also be used to assist the demodulation of the message.
