ACTIVATING COMPONENT CARRIERS IN CARRIER AGGREGATION Russian patent published in 2014 - IPC H04W72/04 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to wireless communication. An exemplary embodiment of the present invention includes transmitting, to user equipment UE, downlink control information (DCI) comprising an indication of an access codeword and an indication that at least one component carrier (CC) is activated for the UE, and receiving, from the UE, the access codeword which is an acknowledgement that the UE has activated the at least one CC. The access codeword is received on an uplink channel which a) is transmitted using said at least activated CC, if there is an activated uplink channel transmitted using said activated CC, or b) is previously activated if there is no activated uplink channel transmitted using said activated CC. In another version of the present invention, DCI comprising said two indications is received from a network, the received indications are used to select and access said at least one CC; and activating the CC is acknowledged by sending the access codeword.

EFFECT: improved communication.

30 cl, 10 dwg