Communication device and method for efficiently receiving MIMO signals

A reception method for receiving a multiple-input and multiple-output (MIMO) signal, the method comprising:

• performing a first symbol detection on the MIMO signal using a first detection method,
• determining if a first detection error of the first symbol detection is below or above a detection threshold,
• performing a second symbol detection on the MIMO signal using a second detection method, when it has been determined that the first detection error is above the detection threshold,
• determining if a second detection error of the second symbol detection is below or above the detection threshold,
• using results of the first symbol detection as final symbol detection results when the first detection error is below the detection threshold;
• and
• using results of the second symbol detection as the final symbol detection results when the second detection error is below the detection threshold.

A non-transitory computer readable medium, comprising processor-executable instructions stored thereon, which when executed by a hardware processor cause the processor to implement operations including:

• performing a first symbol detection on the MIMO signal using a first detection method,
• determining if a first detection error of the first symbol detection is below or above a detection threshold,
• performing a second symbol detection on the MIMO signal using a second detection method, when it has been determined that the first detection error is above the detection threshold,
• determining if a second detection error of the second symbol detection is below or above the detection threshold,
• using results of the first symbol detection as final symbol detection results when the first detection error is below the detection threshold;
• and
• using results of the second symbol detection as final symbol detection results when the second detection error is below the detection threshold.