Channel estimation for per-tone continuous precoding in downlink mimo transmission

A method of wireless communications, comprising:

• receiving a transmission over a precoded channel, the transmission comprising a layer having a plurality of symbols, each symbol having a plurality of modulated tones precoded on a per-tone basis, the received layer being associated with a power delay profile;
• and
• estimating the precoded channel based on a time support of the power delay profile.

An apparatus for wireless communications, comprising:

• means for receiving a transmission over a precoded channel, the transmission comprising a layer having a plurality of symbols, each symbol having a plurality of modulated tones precoded on a per-tone basis, the receive layer being associated with a power delay profile;
• and
• means for estimating the precoded channel based on a time support of the power delay profile.

A computer-readable medium storing computer executable code, comprising code to:

• receive a transmission over a precoded channel, the transmission comprising a layer having a plurality of symbols, each symbol having a plurality of modulated tones precoded on a per-tone basis, the receive layer being associated with a power delay profile;
• and
• estimate the precoded channel based on a time support of the power delay profile.