Extrapolating channel state information (“CSI”) estimates from multiple packets sent over different frequency channels to generate a combined CSI estimate for a MIMO-OFDM system

摘要

A method for extrapolating channel state information (“CSI”) estimates from multiple packets sent over different channels to generate a combined CSI estimate for a MIMO-OFDM system is disclosed. Packets are received on an m×n×Wi channel configuration, wherein m is the number of receive antennas used to receive the packets, n is the number of transmit antennas used to transmit the packets, and Wi is the number of OFDM channels for a packet i in the MIMO-OFDM system. CSI estimates are generated for the received packets and the CSI estimates are extrapolated to generate a combined CSI estimate for an m×n×R channel configuration, wherein R>Wi.

主权项

1. A method for extrapolating channel state information (“CSI”) estimates from multiple packets sent over different frequency channels to generate a combined CSI estimate for a multiple input, multiple output orthogonal frequency division multiplexing (MIMO-OFDM) system, the method comprising:
receiving packets on an m×n×Wi channel configuration, wherein m is a number of receive antennas used to receive the packets, n is a number of transmit antennas used to transmit the packets, and Wi is a number of OFDM channels for packet i in the MIMO-OFDM system; generating, by a processor, CSI estimates for the received packets; extrapolating, by the processor, the CSI estimates for the received packets to generate a combined CSI estimate for an m×n×R channel configuration, wherein R>Wi; and adjusting, by the processor, the combined CSI estimate by frequency responses of transmit and receive filters in the MIMO-OFDM system.