| 摘要 |
One embodiment is directed to a method for enhanced multiple transmit antenna sounding. The method includes constructing, for example by a UE, an extended precoding matrix with mutually orthogonal column vectors, generating a reference signal (e.g., DMRS or SRS) sequence, precoding the reference signal sequence with each column vector of the extended precoding matrix to form a set of precoded sequences, mapping the set of precoded sequences to mutually orthogonal code, frequency, and/or time resources reserved for reference signals of the UE, and transmitting the references signals to, for example, an eNodeB. |
