Methods and apparatuses for channel measurement and feedback of multi-dimensional antenna array

(canceled)

(canceled)

(canceled)

A method for enabling channel measurement and feedback of a multi-dimensional antenna array in a wireless communication system, the method comprising:

• receiving, from a base station, configuration information for at least two classes of channel state information reference signals (CSI-RS), wherein each of the at least two classes of CSI-RS is for use in a channel measurement for a different dimension of the multi-dimensional antenna array;
• and
• receiving the at least two classes of CSI-RS from the base station according to the configuration information, for performing and feeding back channel measurements for different dimensions of the multi-dimensional antenna array.

(canceled)

(canceled)

An apparatus for enabling channel measurement and feedback of a multi-dimensional antenna array in a wireless communication system, the apparatus comprising:

• configuration information generating means for generating configuration information for at least two classes of channel state information reference signals (CSI-RS), wherein each of the at least two classes of CSI-RS is for use in a channel measurement at a user equipment for a different dimension of the multi-dimensional antenna array;
• and
• configuration information transmitting means for transmitting the configuration information to the user equipment, so that the user equipment receives the at least two classes of CSI-RS according to the configuration information.

20-26. (canceled)

An apparatus for enabling channel measurement and feedback of a multi-dimensional antenna array in a wireless communication system, the apparatus comprising:

• configuration information receiving means for receiving from a base station configuration information for at least two classes of channel state information reference signals (CSI-RS), wherein each of the at least two classes of CSI-RS is for use in a channel measurement for a different dimension of the multi-dimensional antenna array;
• and
• reference signal receiving means for receiving the at least two classes of CSI-RS from the base station according to the configuration information, for performing and feeding back channel measurements for different dimensions of the multi-dimensional antenna array.

28-36. (canceled)