Methods and apparatus for beamforming for femtocells

摘要

Methods and apparatus for beamforming for femtocells, such as in LTE wireless networks, to provide inter-cell coordination and interference mitigation are disclosed. A macrocell user equipment (UE) may determine information regarding an interfering femtocell node, such as a home eNodeB (HeNB). The information may be sent directly or indirectly, such as by a backhaul communication link, to the HeNB. The HeNB may adjust an output based on the information. The information may include spatial channel information, which may be used for beamforming at the HeNB output so as to mitigate interference in the direction of the UE.

主权项

1. A method for wireless communication, comprising:
detecting, at a user device, a signal transmitted by a restricted wireless network node which the user device is not subscribed to; determining, by the user device, from the signal, information regarding the restricted wireless network node; transmitting the information from the user device to the restricted wireless network node in order to cause the restricted wireless network node to adjust the signal transmitted in a direction of the user device to avoid or reduce interference at the user device; and establishing, by the user device, a connection with a serving node subsequent to the adjustment of the signal transmitted in the direction of the user device.