Patent ID: 8761682
Filing Date: 2014-06-24
Classification: H04B,H04W

Abstract:
1. A method of interference management in a wireless network comprising: determining, within a wireless receiver, a level of interference in a receiver and transmitting a signal indicative of excessive interference; randomly selecting, within a wireless transmitter upon receipt of a signal indicative of excessive interference, a beam forming vector or a sub-set of transmitter antennae from a set of transmitter antennae available to the transmitter and switching signal transmission from a preceding transmission mode to a transmission mode using the selected beamforming vector or the selected antenna sub-set; determining, within the receiver, whether a level of interference has improved since the transmission of said signal and, if not, sending a signal indicative of a deterioration of said level of interference; reverting, within the transmitter, to using the preceding transmission mode for signal transmission if a said signal indicative of a deterioration of said level of interference is received; within the transmitter, after a said random selection and before or after said signal transmission switching, if no said signal indicative of a deterioration of said level of interference is received, determining whether or not the transmission quality of some or all existing communication links the transmitter is involved in, are above a predetermined threshold value and only retaining, or switching to, the randomly selected transmission mode if the said transmission quality is above said threshold.