Method and apparatus for transmitting data

An apparatus for receiving data, comprising:

• a receiver, configured to receive data of two data streams and reference signals, wherein at least two second resource groups are comprised in each first resource group of at least one first resource group, wherein each of the second resource groups is capable of bearing at least two reference signals, wherein the at least two reference signals correspond to different antenna ports, wherein the two data streams are mapped onto REs of two different antenna ports and the reference signals corresponding to the two different antenna ports are borne on two different second resource groups of the first resource group;
• and
• a decoder, configured to decode the received data streams,
• wherein the reference signals comprise demodulation reference signals (DMRS).

A computer-readable storage medium storing computer readable code comprising a program, that when executed by a processor disposed within a device, causes the device to perform the steps of:

• receiving data of two data streams and reference signals, wherein at least two second resource groups are comprised in each first resource group of at least one first resource group, wherein each of the second resource groups is capable of bearing at least two reference signals, wherein the at least two reference signals correspond to different antenna ports, wherein the two data streams are mapped onto REs of two different antenna ports and the reference signals corresponding to the two different antenna ports are borne on two different second resource groups of the first resource group;
• and
• decoding the received data streams,
• wherein the reference signals comprise demodulation reference signals (DMRS).