Signal transmission method and device, terminal, base station, and storage medium

A method for signal transmission, performed by a base station, comprising:

• indicating a target reference signal resource to user equipment (UE) through preset signaling;
• and
• sending a reference signal to UE using the target reference signal resource, wherein UE is in RRC idle/RRC inactive mode, and the reference signal is a periodic tracking reference signal (TRS);
• wherein in case that the preset signaling includes the system information, the indicating a target reference signal resource to UE through preset signaling comprises:
• indicating a first reference signal resource set to UE through system information for UE determining the target reference signal resource according to the first reference signal resource set, wherein the first reference signal resource set comprises one or more reference signal resources;
• wherein the method further comprises after sending the reference signal to UE using the target reference signal resource, indicating indication information to UE through the paging information, wherein the indication information is used for indicating a change of the first reference signal resource set.

A user equipment (UE), comprising:

• a processor, and a memory storing programs that are executable by the processor, wherein the programs, when executed by the processor, cause the processor to perform the following steps of:
• receiving a target reference signal resource indicated by a base station through preset signaling;
• and
• receiving a reference signal according to the target reference signal resource, wherein UE is in RRC idle/RRC_inactive mode, and the reference signal is a periodic tracking reference signal (TRS);
• wherein in case that the preset signaling includes the system information, the receiving the target reference signal resource indicated by the base station through the preset signaling comprises:
• receiving a first reference signal resource set indicated by the base station through the system information, wherein the first reference signal resource set comprises one or more reference signal resources;
• and determining the target reference signal resource according to the first reference signal resource set;
• wherein the method further comprises after receiving the reference signal according to the target reference signal resource, receiving indication information indicated by the base station through the paging information, wherein the indication information is used for indicating a change of the first reference signal resource set.