Method, user equipment, and base station for transmitting information

A method, comprising:

• sending a downlink assignment to a user equipment, wherein the downlink assignment comprises a trigger flag, and wherein the trigger flag indicates a trigger state from a plurality of trigger states, and wherein the plurality of trigger states comprises:
• not triggering aperiodic channel state information (CSI), triggering aperiodic CSI of a carrier where downlink data scheduled by the downlink assignment is located, and triggering aperiodic CSI of a downlink carrier set;
• or wherein the plurality of trigger states comprises:
• not triggering aperiodic channel state information (CSI), triggering aperiodic CSI of a downlink carrier where the downlink assignment is located, and triggering aperiodic CSI of a downlink carrier set;
• determining an uplink resource used to receive the aperiodic CSI that corresponds to the trigger flag;
• and
• receiving, on the uplink resource and in response to the trigger flag indicating the triggering of aperiodic CSI, aperiodic CSI that corresponds to the trigger flag sent by the user equipment.

A user equipment, comprising:

• a receiver, configured to receive a downlink assignment sent by a base station, wherein the downlink assignment schedules a plurality of downlink carriers, wherein the downlink assignment comprises a trigger flag, wherein the trigger flag indicates a trigger state from a plurality of trigger states, and wherein the plurality of trigger states comprises:
• not triggering aperiodic channel state information (CSI), triggering aperiodic CSI of a carrier where downlink data scheduled by the downlink assignment is located, and triggering aperiodic CSI of a downlink carrier set;
• or wherein the plurality of trigger states comprises:
• not triggering aperiodic channel state information (CSI), triggering aperiodic CSI of a downlink carrier where the downlink assignment is located, and triggering aperiodic CSI of a downlink carrier set;
• a processor;
• a computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
• determining an uplink resource used to send aperiodic CSI corresponding to the trigger flag;
• and
• a transmitter, configured to send, according to the trigger flag comprised in the downlink assignment received by the receiver, aperiodic CSI corresponding to the trigger flag to the base station on the uplink resource determined by the program.

A base station, comprising:

• a transmitter, configured to send a downlink assignment to a user equipment, wherein the downlink assignment comprises a trigger flag, and wherein the trigger flag indicates a trigger state from a plurality of trigger states, and wherein the plurality of trigger states comprises:
• not triggering aperiodic channel state information (CSI), triggering aperiodic CSI of a carrier where downlink data scheduled by the downlink assignment is located, and triggering aperiodic CSI of a downlink carrier set;
• or wherein the plurality of trigger states comprises:
• not triggering aperiodic channel state information (CSI), triggering aperiodic CSI of a downlink carrier where the downlink assignment is located, and triggering aperiodic CSI of a downlink carrier set;
• a processor;
• a computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
• determining an uplink resource for receiving aperiodic CSI corresponding to the trigger flag;
• and
• a receiver, configured to receive, on the uplink resource determined by the program and according to the trigger flag comprised in the downlink assignment sent by the transmitter, the aperiodic CSI corresponding to the trigger flag sent by the user equipment.