Noticing method, determining method, noticing system and determining device for location relationship of antenna ports

The invention discloses a noticing method, a determining method, a noticing system and a determining device for location relationship of antenna ports. A network side is configured with a CSI-RS indication signaling of a DMRS reference and/or a first enable indication signaling used for indicating whether the CSI-RS indication signaling of the DMRS reference is enabled; or the network side is further configured with a CRS indication signaling of each set of CSI-RS quasi-co-located reference and/or a second enable indication signaling used for indicating whether the CRS indication signaling of each set of CSI-RS quasi-co-located reference is enabled. By the adoption of the methods, the systems and the devices of the invention, a terminal is enabled to determine a reference signal port referenced by time and frequency synchronization so as to improve the time and frequency synchronization accuracy.