Methods and apparatus for directing a beam towards a device in the presence of interference

摘要

Methods and apparatus are provided for directing a beam towards a receiving device in the presence of interference. A beam transmitted by a transmission source is received by a received device. The beam shape is affected by signals transmitted by interfering sources. The receiving device computes channel estimates associated with the transmission source and the interfering sources. A feedback signal that represents the channel estimates associated with the transmission and interfering sources is transmitted to the transmission source. The transmission source changes characteristics of the beam to compensate for the interference caused by the interfering sources. The transmission source may change the characteristics of the beam by performing precoding algorithms.

主权项

1. A method for providing channel state feedback about a transmission source and an interfering source, the method comprising:
receiving a first signal from a transmission source and a second signal from an interfering source; determining a first channel matrix based on the first signal and a second channel matrix based on the second signal; processing the first channel matrix to obtain an essential channel matrix; and transmitting a feedback signal to the transmission source that comprises the essential channel matrix and the second channel matrix.