Patent ID: 8929473
Filing Date: 2015-01-06
Classification: H04B,H04L

Abstract:
1. A method for enabling combined baseband (BB) and radio frequency (RF) processing of signals, the method comprising: receiving, by a receiver, channel estimation information for a channel between a transmitter and the receiver; identifying a number of transmitter RF signal processing chains in the transmitter, a number of receiver RF signal processing chains in the receiver, and which of the transmitter and the receiver has a lower number of RF signal processing chains; identifying a plurality of paths in the channel based on the channel estimation information, the plurality of paths including a path in the channel for each of the lower number of RF signal processing chains; calculating an RF precoding matrix for precoding one or more signals to be transmitted on each of the identified paths, the RF precoding matrix comprising a phase shift for each of the identified paths; and calculating a BB precoding matrix for precoding the one or more signals by a BB precoding unit associated with the transmitter.