Adaptive wireless MIMO communications system using list-based MIMO detector

摘要

Systems and methods for providing feedback in a Multiple-Input-Multiple-Output (MIMO) system are disclosed. In some embodiments, a method of operation of a receiving device in a MIMO system comprises determining an antenna correlation metric value indicative of a transmit and/or receive antenna correlation for a MIMO channel from a transmitting device of the MIMO system to the receiving device. The method further comprises obtaining a first value for a signal quality parameter for a MIMO receiver of the receiving device as if the MIMO receiver uses a first MIMO detector of a first MIMO detector type, computing a second value for the signal quality parameter for the MIMO receiver for a second MIMO detector of a second MIMO detector type actually used by the MIMO receiver based on the first value for the signal quality parameter and the antenna correlation metric value, and generating feedback based on the second value.

主权项

1. A method of operation of a receiving device in a Multiple-Input-Multiple-Output, MIMO, system to provide feedback to a transmitting device in the MIMO system for adaptive transmission from the transmitting device to the receiving device in the MIMO system, comprising:
determining an antenna correlation metric value indicative of at least one of a group consisting of: transmit antenna correlation for a MIMO channel from the transmitting device to the receiving device and receive antenna correlation for the MIMO channel; obtaining a first value for a signal quality parameter for a MIMO receiver of the receiving device as if the MIMO receiver uses a first MIMO detector of a first MIMO detector type; computing a second value for the signal quality parameter for the MIMO receiver of the receiving device for a second MIMO detector of a second MIMO detector type actually used by the MIMO receiver based on the first value for the signal quality parameter for the first MIMO detector of the first MIMO detector type and the antenna correlation metric value; generating feedback based on the second value for the signal quality parameter for the second MIMO detector of the second MIMO detector type; and providing the feedback to the transmitting device.