Method for enhanced transmission of control information, user equipment, base station, and communications system

An apparatus, comprising:

• a processor, configured to;
• determine a first parameter, wherein the first parameter comprises a repetition level of enhanced transmission of control information,
• determine, according to the first parameter and a predefined one-to-one mapping relationship between the first parameter and a second parameter, the second parameter to which the first parameter is mapped, wherein the second parameter comprises a search space corresponding to an aggregation level of a control channel used in the enhanced transmission of the control information and a time resource used in the enhanced transmission of the control information,
• determine, according to the first parameter, an index of a radio frame in which a start subframe of information carried in a physical shared channel in enhanced transmission is located;
• and
• a transceiver, configured to
• perform the enhanced transmission of the control information according to the first parameter and the second parameter, and
• starting from the radio frame indicated by the index of the radio frame in which the start subframe is located, perform enhanced transmission of the information carried in the physical shared channel, wherein the physical shared channel comprises a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH).

An apparatus, comprising:

• a receiver, configured to receive control information in enhanced transmission;
• and
• a processor, configured to
• determine, according to the control information, a second parameter used in the enhanced transmission of the control information, and determine, according to the second parameter used in the enhanced transmission of the control information and a one-to-one mapping relationship between a first parameter and the second parameter, the first parameter to which the second parameter is mapped, wherein the second parameter comprises a search space corresponding to an aggregation level of a control channel used in the enhanced transmission of the control information and a time resource used in the enhanced transmission of the control information, and the first parameter comprises a repetition level of the enhanced transmission of the control information,
• determine, according to the first parameter, an index of a radio frame in which a start subframe of information carried in a physical shared channel in enhanced transmission is located,
• wherein the control information was sent to the receiver according to the first parameter and the second parameter, and
• the information carried in the physical shared channel was sent to the receiver starting from the radio frame indicated by the index of the radio frame in which the start subframe is located, wherein the physical shared channel comprises a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH).

A method, comprising:

• receiving control information in enhanced transmission;
• determining, according to the control information, a second parameter used in the enhanced transmission of the control information, and determining, according to the second parameter used in the enhanced transmission of the control information and a predefined one-to-one mapping relationship between a first parameter and the second parameter, the first parameter to which the second parameter is mapped, wherein the second parameter comprises a search space corresponding to an aggregation level of a control channel used in the enhanced transmission of the control information and a time resource used in the enhanced transmission of the control information, the first parameter comprises a repetition level of the enhanced transmission of the control information;
• determining, according to the first parameter, an index of a radio frame in which a start subframe of information carried in a physical shared channel in enhanced transmission is located, the physical shared channel comprising a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH), wherein the control information received in enhanced transmission having been sent according to the first parameter and the second parameter;
• and
• receiving the information carried in the physical shared channel starting from the radio frame indicated by the index of the radio frame in which the start subframe is located.