An information receiving method, the method performed by a user equipment, the method comprising: detecting (S 101) whether a network side triggers the user equipment to perform a first operation; and in response to a detection result that the network side triggers the user equipment to perform the first operation, performing (S 102) the first operation, wherein the first operation comprises: receiving downlink control information, DCI, in a search space; in a case where the first operation is receiving the DCI in the search space, the search space comprises a user equipment-specific search space added based on an existing search space or a common search space added based on an existing search space, wherein the existing search space refers to a search space before the user equipment is triggered to receive the DCI; for a half-duplex frequency division duplex, HD-FDD, system, the search space is located within an uplink gap of the user equipment; and the uplink gap is a second uplink gap, is in a period when a data packet is sent and is used for receiving the DCI, wherein the second uplink gap is an uplink gap added based on an existing uplink gap, wherein the existing uplink gap is a first uplink gap, wherein the first uplink gap is an uplink gap used for downlink time-frequency synchronization by the user equipment. detecting (S 101) whether a network side triggers the user equipment to perform a first operation; and in response to a detection result that the network side triggers the user equipment to perform the first operation, performing (S 102) the first operation, wherein the first operation comprises: receiving downlink control information, DCI, in a search space; in a case where the first operation is receiving the DCI in the search space, the search space comprises a user equipment-specific search space added based on an existing search space or a common search space added based on an existing search space, wherein the existing search space refers to a search space before the user equipment is triggered to receive the DCI; for a half-duplex frequency division duplex, HD-FDD, system, the search space is located within an uplink gap of the user equipment; and the uplink gap is a second uplink gap, is in a period when a data packet is sent and is used for receiving the DCI, wherein the second uplink gap is an uplink gap added based on an existing uplink gap, wherein the existing uplink gap is a first uplink gap, wherein the first uplink gap is an uplink gap used for downlink time-frequency synchronization by the user equipment. receiving downlink control information, DCI, in a search space; in a case where the first operation is receiving the DCI in the search space, the search space comprises a user equipment-specific search space added based on an existing search space or a common search space added based on an existing search space, wherein the existing search space refers to a search space before the user equipment is triggered to receive the DCI; for a half-duplex frequency division duplex, HD-FDD, system, the search space is located within an uplink gap of the user equipment; and the uplink gap is a second uplink gap, is in a period when a data packet is sent and is used for receiving the DCI, wherein the second uplink gap is an uplink gap added based on an existing uplink gap, wherein the existing uplink gap is a first uplink gap, wherein the first uplink gap is an uplink gap used for downlink time-frequency synchronization by the user equipment.