Patent ID: 8849217
Filing Date: 2014-09-30
Classification: H01Q,H04B

Abstract:
1. A method, comprising: providing a wireless communication apparatus comprising associated antennas, wherein the associated antennas comprise at least two antennas having radiation phase patterns, wherein a radiation phase pattern of an antenna is a representation in free space of electromagnetic power distribution having a certain phase; and introducing a phase shift between the radiation phase patterns of the associated antennas which are applicable in transmitting and/or receiving associated radio frequency signals simultaneously via an air interface of the wireless communication apparatus, wherein the phase shift is introduced by electrically tuning the current phase shift between the radiation phase patterns of the associated antennas in order to obtain orthogonality between the associated radio frequency signals as transmitted in an uplink or downlink direction, wherein the phase shifted radiation phase patterns of the associated antennas are such that at least two of the associated antennas have different radiation phase patterns, wherein electrically tuning the phase shift between the radiation phase patterns of the associated antennas is on the basis of obtained feedback related to performed radio communication.