A method performed by a user equipment (200, 402), the method comprising: transmitting, to a base station (300, 404), an indicator that indicates one or more resource types for grant-free transmissions supported by the user equipment (200, 402); and transmitting (410, 602) assistant information to the base station (300, 404) to assist in grant-free resource allocation; wherein the assistant information comprises an expected type of resource; characterized in that the expected type of resource is selected from the group comprising: a first resource type in which uplink data transmissions are made based on radio resource control signaling, without grant, and without physical layer signaling; a second resource type in which uplink data transmissions are made based on radio resource control signaling, without grant, and with physical layer signaling for at least one of activation and/or deactivation; and a third resource type in which uplink data transmissions are made based on radio resource control signaling, without grant, and with physical layer signaling for modifying at least one parameter. transmitting, to a base station (300, 404), an indicator that indicates one or more resource types for grant-free transmissions supported by the user equipment (200, 402); and transmitting (410, 602) assistant information to the base station (300, 404) to assist in grant-free resource allocation; wherein the assistant information comprises an expected type of resource; characterized in that the expected type of resource is selected from the group comprising: a first resource type in which uplink data transmissions are made based on radio resource control signaling, without grant, and without physical layer signaling; a second resource type in which uplink data transmissions are made based on radio resource control signaling, without grant, and with physical layer signaling for at least one of activation and/or deactivation; and a third resource type in which uplink data transmissions are made based on radio resource control signaling, without grant, and with physical layer signaling for modifying at least one parameter. characterized in that the expected type of resource is selected from the group comprising: a first resource type in which uplink data transmissions are made based on radio resource control signaling, without grant, and without physical layer signaling; a second resource type in which uplink data transmissions are made based on radio resource control signaling, without grant, and with physical layer signaling for at least one of activation and/or deactivation; and a third resource type in which uplink data transmissions are made based on radio resource control signaling, without grant, and with physical layer signaling for modifying at least one parameter. a first resource type in which uplink data transmissions are made based on radio resource control signaling, without grant, and without physical layer signaling; a second resource type in which uplink data transmissions are made based on radio resource control signaling, without grant, and with physical layer signaling for at least one of activation and/or deactivation; and a third resource type in which uplink data transmissions are made based on radio resource control signaling, without grant, and with physical layer signaling for modifying at least one parameter.