A method for multi-antenna transmission, executed by a first node, the method comprising: receiving Q1 piece(s) of second downlink information, wherein the Q1 piece(s) of second downlink information is(are) respectively used for determining Q1 first-type radio resource(s) and Q1 first-type identifier(s), and the Q1 first-type identifier(s) respectively corresponds(correspond) to the Q1 first-type radio resource(s); receiving Q2 piece(s) of third downlink information, wherein the Q2 piece(s) of third downlink information is(are) respectively used for determining Q2 second-type radio resource(s) and Q2 second-type identifier(s), and the Q2 second-type identifier(s) respectively corresponds(correspond) to the Q2 second-type radio resource(s); and receiving first downlink information, wherein the first downlink information is an information element, the first downlink information comprises a first field and a second field, the first field of the first downlink information is used for determining a first radio resource, the second field of the first downlink information is used for determining a second radio resource; the first radio resource is reserved for a first-type reference signal, the second radio resource is reserved for a second-type reference signal; a target receiver of the first-type reference signal comprises the first node, a transmitter of the second-type reference signal is the first node; a measurement on the first-type reference signal is used for generating the second-type reference signal; the first node is a User Equipment, UE, wherein the first field of the first downlink information is used for determining a first identifier, the first radio resource is one of the Q1 first-type radio resource(s), a first-type identifier of the Q1 first-type identifier(s) corresponding to the first radio resource is the first identifier; the second field of the first downlink information is used for determining a second identifier, and the second radio resource is one of the Q2 second-type radio resource(s); a second-type identifier of the Q2 second-type identifier(s) corresponding to the second radio resource is the second identifier; the Q1 and the Q2 are positive integers respectively, and wherein the first downlink information comprises a third field, the third field of the first downlink information is used for identifying the first downlink information. receiving Q1 piece(s) of second downlink information, wherein the Q1 piece(s) of second downlink information is(are) respectively used for determining Q1 first-type radio resource(s) and Q1 first-type identifier(s), and the Q1 first-type identifier(s) respectively corresponds(correspond) to the Q1 first-type radio resource(s); receiving Q2 piece(s) of third downlink information, wherein the Q2 piece(s) of third downlink information is(are) respectively used for determining Q2 second-type radio resource(s) and Q2 second-type identifier(s), and the Q2 second-type identifier(s) respectively corresponds(correspond) to the Q2 second-type radio resource(s); and receiving first downlink information, wherein the first downlink information is an information element, the first downlink information comprises a first field and a second field, the first field of the first downlink information is used for determining a first radio resource, the second field of the first downlink information is used for determining a second radio resource; the first radio resource is reserved for a first-type reference signal, the second radio resource is reserved for a second-type reference signal; a target receiver of the first-type reference signal comprises the first node, a transmitter of the second-type reference signal is the first node; a measurement on the first-type reference signal is used for generating the second-type reference signal; the first node is a User Equipment, UE, wherein the first field of the first downlink information is used for determining a first identifier, the first radio resource is one of the Q1 first-type radio resource(s), a first-type identifier of the Q1 first-type identifier(s) corresponding to the first radio resource is the first identifier; the second field of the first downlink information is used for determining a second identifier, and the second radio resource is one of the Q2 second-type radio resource(s); a second-type identifier of the Q2 second-type identifier(s) corresponding to the second radio resource is the second identifier; the Q1 and the Q2 are positive integers respectively, and wherein the first downlink information comprises a third field, the third field of the first downlink information is used for identifying the first downlink information.