A method for information transmission based on coordinated multipoint transmission, comprising: determining, by a user equipment, a main transmission point; wherein the main transmission point is determined based on channel conditions within a measurement set or within a subset of the measurement set configured by a network side equipment; wherein the method further comprises: determining, by the UE, unlimited RANK information of the main transmission point, and channel state information corresponding to the unlimited RANK information; and sending, by the UE, the unlimited RANK information and the channel state information of the main transmission point to the network side equipment; wherein the method further comprises: receiving, by the UE, configuration information of the measurement set from the network side equipment, wherein the configuration information of the measurement set comprises identification information of a transmission point and pilot configuration information of the transmission point, or comprises pilot configuration information of the transmission point; determining, by the UE, limited RANK information of all transmission points in the measurement set as well as channel state information corresponding to the limited RANK information, and sending, by the UE, the channel state information corresponding to the limited RANK information to the network side equipment. determining, by a user equipment, a main transmission point; wherein the main transmission point is determined based on channel conditions within a measurement set or within a subset of the measurement set configured by a network side equipment; wherein the method further comprises: determining, by the UE, unlimited RANK information of the main transmission point, and channel state information corresponding to the unlimited RANK information; and sending, by the UE, the unlimited RANK information and the channel state information of the main transmission point to the network side equipment; determining, by the UE, unlimited RANK information of the main transmission point, and channel state information corresponding to the unlimited RANK information; and sending, by the UE, the unlimited RANK information and the channel state information of the main transmission point to the network side equipment; wherein the method further comprises: receiving, by the UE, configuration information of the measurement set from the network side equipment, wherein the configuration information of the measurement set comprises identification information of a transmission point and pilot configuration information of the transmission point, or comprises pilot configuration information of the transmission point; determining, by the UE, limited RANK information of all transmission points in the measurement set as well as channel state information corresponding to the limited RANK information, and sending, by the UE, the channel state information corresponding to the limited RANK information to the network side equipment. receiving, by the UE, configuration information of the measurement set from the network side equipment, wherein the configuration information of the measurement set comprises identification information of a transmission point and pilot configuration information of the transmission point, or comprises pilot configuration information of the transmission point; determining, by the UE, limited RANK information of all transmission points in the measurement set as well as channel state information corresponding to the limited RANK information, and sending, by the UE, the channel state information corresponding to the limited RANK information to the network side equipment.