A method for establishing a mapping between an enhanced downlink control channel resource and an antenna port, the method comprising the steps of: establishing a mapping between each resource element in an enhanced downlink control channel resource and an antenna port; establishing a correspondence between control data carried by the resource element and an antenna port mapped to the resource element, so as to send or receive, according to a reference signal corresponding to the antenna port, the control data carried by the resource element; characterized in that: one resource block pair PRB pair in the enhanced downlink control channel resource comprises multiple orthogonal frequency division multiplexing OFDM symbols in a time domain, each of the OFDM symbols comprises multiple resource elements, and each of the resource elements corresponds to a subcarrier in a frequency domain; and the step of establishing a mapping between each resource element in an enhanced downlink control channel resource and an antenna port comprises: determining a mapping between the resource element and an antenna port according to a physical index, wherein the physical index comprises an OFDM symbol index corresponding to the OFDM symbol, and a subcarrier index corresponding to the subcarrier; wherein: in each of the OFDM symbols, antenna ports corresponding to all the resource elements comprised in the OFDM symbol are the same; and in the multiple OFDM symbols, antenna ports corresponding to the resource elements in different OFDM symbols are in rotation on a preset rotating cycle according to an order of the OFDM symbol indexes in the time domain. establishing a mapping between each resource element in an enhanced downlink control channel resource and an antenna port; establishing a correspondence between control data carried by the resource element and an antenna port mapped to the resource element, so as to send or receive, according to a reference signal corresponding to the antenna port, the control data carried by the resource element; characterized in that: one resource block pair PRB pair in the enhanced downlink control channel resource comprises multiple orthogonal frequency division multiplexing OFDM symbols in a time domain, each of the OFDM symbols comprises multiple resource elements, and each of the resource elements corresponds to a subcarrier in a frequency domain; and the step of establishing a mapping between each resource element in an enhanced downlink control channel resource and an antenna port comprises: determining a mapping between the resource element and an antenna port according to a physical index, wherein the physical index comprises an OFDM symbol index corresponding to the OFDM symbol, and a subcarrier index corresponding to the subcarrier; wherein: in each of the OFDM symbols, antenna ports corresponding to all the resource elements comprised in the OFDM symbol are the same; and in the multiple OFDM symbols, antenna ports corresponding to the resource elements in different OFDM symbols are in rotation on a preset rotating cycle according to an order of the OFDM symbol indexes in the time domain. one resource block pair PRB pair in the enhanced downlink control channel resource comprises multiple orthogonal frequency division multiplexing OFDM symbols in a time domain, each of the OFDM symbols comprises multiple resource elements, and each of the resource elements corresponds to a subcarrier in a frequency domain; and the step of establishing a mapping between each resource element in an enhanced downlink control channel resource and an antenna port comprises: determining a mapping between the resource element and an antenna port according to a physical index, wherein the physical index comprises an OFDM symbol index corresponding to the OFDM symbol, and a subcarrier index corresponding to the subcarrier; wherein: in each of the OFDM symbols, antenna ports corresponding to all the resource elements comprised in the OFDM symbol are the same; and in the multiple OFDM symbols, antenna ports corresponding to the resource elements in different OFDM symbols are in rotation on a preset rotating cycle according to an order of the OFDM symbol indexes in the time domain. in each of the OFDM symbols, antenna ports corresponding to all the resource elements comprised in the OFDM symbol are the same; and in the multiple OFDM symbols, antenna ports corresponding to the resource elements in different OFDM symbols are in rotation on a preset rotating cycle according to an order of the OFDM symbol indexes in the time domain.