Determining error vector magnitude for a single layer transmission using a multiple-input multiple-output receiver

A user equipment (“UE”) for wireless communication, comprising:

• at least one memory;
• and
• at least one processor coupled with the at least one memory and configured to cause the UE to:
• receive a single layer transmission signal via a propagation channel, wherein the single layer transmission signal is generated and transmitted using an antenna port comprising a plurality of antennas and an antenna connector for each of the plurality of antennas;
• and
• define an error vector magnitude (“EVM”) for transmit diversity of the single layer transmission signal using at least two of the plurality of antennas, wherein the EVM is expressed as a power-weighted combination or per-antenna EVM value.

A user equipment (“UE”) for wireless communication, comprising:

• at least one memory;
• and
• at least one processor coupled with the at least one memory and configured to cause the UE to:
• receive a single layer transmission signal via a propagation channel, the single layer transmission signal associated with an antenna port comprising a plurality of antennas and an antenna connector for each of the plurality of antennas;
• and
• define error vector magnitude (“EVM”) for transmit diversity of the single layer transmission signal using two antennas of the plurality of antennas, the EVM given by:
• EVM
• =
• P
• 1
• ⁢
• EVM
• 1
• +
• P
• 2
• ⁢
• EVM
• 2
• P
• 1
• +
• P
• 2
• where EVM1 and EVM2 are EVM values for first and second transmit antennas of the plurality of antennas comprising the antenna port and P1 and P2 are values of transmit power on the first and second transmit antennas.

A processor for wireless communication, comprising:

• at least one controller coupled with at least one memory and configured to cause the processor to:
• receive a single layer transmission signal via a propagation channel, wherein the single layer transmission signal is generated and transmitted using an antenna port comprising a plurality of antennas and an antenna connector for each of the plurality of antennas;
• and
• define an error vector magnitude (“EVM”) for transmit diversity of the single layer transmission signal using at least two of the plurality of antennas, wherein the EVM is expressed as a power-weighted combination or per-antenna EVM value.