Patent ID: 8913580

Claim:
A method for transmitting uplink control information, comprising: receiving, by a user equipment (UE), a carrier activation command or a carrier deactivation command in a downlink subframe n; updating, by the UE, a first downlink activated carrier set according to the received carrier activation command or the carrier deactivation command into a second downlink activated carrier set; taking, by the UE, the second downlink activated carrier set as a current downlink activated carrier set corresponding to a first uplink subframe; wherein the first uplink subframe belongs to a subframe set of an uplink subframe n+k and at least one uplink subframe after the uplink subframe n+k; and wherein n or k is a positive integer, and k is greater than or equal to 5; sorting, by the UE, X pieces of Uplink Control Information (UCI) corresponding to X downlink carriers according to a sorting rule, wherein X is a positive integer, and the X downlink carriers belong to the current downlink activated carrier set; and transmitting, by the UE, the sorted X pieces of UCI to a base station in the first uplink subframe.