An indication method, applied to a base station, comprising: sending a preemption indication message to enhanced mobile broadband user equipment, eMBB UE, wherein the preemption indication message is used to indicate, to the eMBB UE, a scheduled uplink eMBB transmission resource preempted by an ultra-reliable and low latency communications, URLLC, service, wherein the sending the preemption indication message to the eMBB UE comprises: sending the preemption indication message via a control channel in X symbols before an n-th slot, after the eMBB UE receives an uplink grant and before the eMBB UE sends uplink data; or, sending the preemption indication message via a control channel in X symbols before a transmission time instant of an ultra-reliable and low latency communications, URLLC, service in an n-th slot, during a period in which the eMBB UE is sending uplink data; characterized in that wherein a duration of the X symbols= t1+TA, the t1 is a time taken by UE to decode a preemption indication downlink control information, DCI, that is related to a capability of the eMBB UE, the TA is a timing advance value for the eMBB UE, the n-th slot is a slot in which the eMBB UE sends the uplink data, and the n is a positive integer. sending a preemption indication message to enhanced mobile broadband user equipment, eMBB UE, wherein the preemption indication message is used to indicate, to the eMBB UE, a scheduled uplink eMBB transmission resource preempted by an ultra-reliable and low latency communications, URLLC, service, wherein the sending the preemption indication message to the eMBB UE comprises: sending the preemption indication message via a control channel in X symbols before an n-th slot, after the eMBB UE receives an uplink grant and before the eMBB UE sends uplink data; or, sending the preemption indication message via a control channel in X symbols before a transmission time instant of an ultra-reliable and low latency communications, URLLC, service in an n-th slot, during a period in which the eMBB UE is sending uplink data; characterized in that wherein a duration of the X symbols= t1+TA, the t1 is a time taken by UE to decode a preemption indication downlink control information, DCI, that is related to a capability of the eMBB UE, the TA is a timing advance value for the eMBB UE, the n-th slot is a slot in which the eMBB UE sends the uplink data, and the n is a positive integer. sending the preemption indication message via a control channel in X symbols before an n-th slot, after the eMBB UE receives an uplink grant and before the eMBB UE sends uplink data; or, sending the preemption indication message via a control channel in X symbols before a transmission time instant of an ultra-reliable and low latency communications, URLLC, service in an n-th slot, during a period in which the eMBB UE is sending uplink data; characterized in that wherein a duration of the X symbols= t1+TA, the t1 is a time taken by UE to decode a preemption indication downlink control information, DCI, that is related to a capability of the eMBB UE, the TA is a timing advance value for the eMBB UE, the n-th slot is a slot in which the eMBB UE sends the uplink data, and the n is a positive integer.