A system comprising a plurality of base stations (10a, 10b) serving jointly processed data streams, and a plurality of user equipments (20a, 20b) receiving the jointly processed data streams from the plurality of base stations (10a, 10b) according to a coordinated multi-point transmission, each of the plurality of user equipments (20a, 20b) comprising: a processor configured to obtain channel state information for the jointly processed data streams from the plurality of base stations (10a, 10b), and arrange the channel state information in a predetermined order of the form [[Tx 1... Tx m] cell_id1... [Tx 1... Tx n] cell_idk] with cell-id1 <... < cell_idk, wherein [Tx m] cell_idk represents channel state information for transmitter antenna m of base station with cell_idk, [Tx n] cell_idk represents channel state information for transmitter antenna n of base station with cell_idk, k being an integer equal to or greater than 2, and m and n being integers equal to or greater than 1, wherein the processor is configured to arrange the channel state information for the base stations serving the user equipment in an ascending order of cell identifications of the base stations; and a transceiver configured to transmit the channel state information in the predetermined order to at least one of the plurality of base stations (10a, 10b), each of the plurality of base stations (10a, 10b) comprising: a processor (11a, 11b) configured to obtain the channel state information in the predetermined order, and arrange the channel state information in the predetermined order into a datagram; and an interface (13a, 13b) configured to transmit the datagram to at least one of the plurality of base stations (10a, 10b). each of the plurality of user equipments (20a, 20b) comprising: a processor configured to obtain channel state information for the jointly processed data streams from the plurality of base stations (10a, 10b), and arrange the channel state information in a predetermined order of the form [[Tx 1... Tx m] cell_id1... [Tx 1... Tx n] cell_idk] with cell-id1 <... < cell_idk, wherein [Tx m] cell_idk represents channel state information for transmitter antenna m of base station with cell_idk, [Tx n] cell_idk represents channel state information for transmitter antenna n of base station with cell_idk, k being an integer equal to or greater than 2, and m and n being integers equal to or greater than 1, wherein the processor is configured to arrange the channel state information for the base stations serving the user equipment in an ascending order of cell identifications of the base stations; and a transceiver configured to transmit the channel state information in the predetermined order to at least one of the plurality of base stations (10a, 10b), a processor configured to obtain channel state information for the jointly processed data streams from the plurality of base stations (10a, 10b), and arrange the channel state information in a predetermined order of the form [[Tx 1... Tx m] cell_id1... [Tx 1... Tx n] cell_idk] with cell-id1 <... < cell_idk, wherein [Tx m] cell_idk represents channel state information for transmitter antenna m of base station with cell_idk, [Tx n] cell_idk represents channel state information for transmitter antenna n of base station with cell_idk, k being an integer equal to or greater than 2, and m and n being integers equal to or greater than 1, wherein the processor is configured to arrange the channel state information for the base stations serving the user equipment in an ascending order of cell identifications of the base stations; and a transceiver configured to transmit the channel state information in the predetermined order to at least one of the plurality of base stations (10a, 10b), each of the plurality of base stations (10a, 10b) comprising: a processor (11a, 11b) configured to obtain the channel state information in the predetermined order, and arrange the channel state information in the predetermined order into a datagram; and an interface (13a, 13b) configured to transmit the datagram to at least one of the plurality of base stations (10a, 10b). a processor (11a, 11b) configured to obtain the channel state information in the predetermined order, and arrange the channel state information in the predetermined order into a datagram; and obtain the channel state information in the predetermined order, and arrange the channel state information in the predetermined order into a datagram; and an interface (13a, 13b) configured to transmit the datagram to at least one of the plurality of base stations (10a, 10b).