A method for determining an Active Coordination Set, ACS, (406, 410, 414) by a user equipment, UE for wireless communication between the user equipment and one or more base stations (120; 121, 122, 123, 124, 125, 126, 127), the method comprising: evaluating, by the user equipment, a link quality parameter for downlink RF signals received from each of the one or more base stations; determining by the UE, based on the link quality parameter, whether to include at least a first base station of the one or more base stations in the ACS; sending, by the UE, a message to an ACS Server including an indication to add the at least the first base station to the ACS, the message being effective to cause the ACS Server to: store the ACS for the user equipment, the stored ACS including the indication of the at least the first base station; and send a copy of the stored ACS to a master base station; and communicating, by the user equipment, via one or more of the base stations included in the ACS; determining (705; 902), by the user equipment, that one or more of the base stations in the ACS has fallen below a threshold for the link quality parameter; transmitting (715; 904), by the UE, an uplink ACS sounding signal that is effective to cause candidate base stations to receive and decode the uplink ACS sounding signal; receiving (730; 906), by the UE, decoding results for the uplink ACS sounding signal from the candidate base stations; determining (735; 908), by the UE, using the decoding results, which of the candidate base stations to include in the ACS; sending (740, 745; 910), by the UE, a message to the ACS Server including an indication of which candidate base stations to include in the ACS; and jointly communicating, by the UE, with one or more of the base stations included in the ACS. evaluating, by the user equipment, a link quality parameter for downlink RF signals received from each of the one or more base stations; determining by the UE, based on the link quality parameter, whether to include at least a first base station of the one or more base stations in the ACS; sending, by the UE, a message to an ACS Server including an indication to add the at least the first base station to the ACS, the message being effective to cause the ACS Server to: store the ACS for the user equipment, the stored ACS including the indication of the at least the first base station; and send a copy of the stored ACS to a master base station; and communicating, by the user equipment, via one or more of the base stations included in the ACS; determining (705; 902), by the user equipment, that one or more of the base stations in the ACS has fallen below a threshold for the link quality parameter; transmitting (715; 904), by the UE, an uplink ACS sounding signal that is effective to cause candidate base stations to receive and decode the uplink ACS sounding signal; receiving (730; 906), by the UE, decoding results for the uplink ACS sounding signal from the candidate base stations; determining (735; 908), by the UE, using the decoding results, which of the candidate base stations to include in the ACS; sending (740, 745; 910), by the UE, a message to the ACS Server including an indication of which candidate base stations to include in the ACS; and jointly communicating, by the UE, with one or more of the base stations included in the ACS. store the ACS for the user equipment, the stored ACS including the indication of the at least the first base station; and send a copy of the stored ACS to a master base station; and communicating, by the user equipment, via one or more of the base stations included in the ACS; determining (705; 902), by the user equipment, that one or more of the base stations in the ACS has fallen below a threshold for the link quality parameter; transmitting (715; 904), by the UE, an uplink ACS sounding signal that is effective to cause candidate base stations to receive and decode the uplink ACS sounding signal; receiving (730; 906), by the UE, decoding results for the uplink ACS sounding signal from the candidate base stations; determining (735; 908), by the UE, using the decoding results, which of the candidate base stations to include in the ACS; sending (740, 745; 910), by the UE, a message to the ACS Server including an indication of which candidate base stations to include in the ACS; and jointly communicating, by the UE, with one or more of the base stations included in the ACS.