Patent ID: 9031519
Filing Date: 2015-05-12
Classification: H01Q,H04B,H04L

Abstract:
1. A node for a wireless communication system, the node comprising: at least first and second antennas, at least first and second radio chains, a beamforming network, a switching network configured to switch between a first operation state and a second operation state, the first operation state being associated with multiple input, multiple output (MIMO) communications, in the first operation state, each antenna configured to be at least initially connected to a corresponding radio chain, in the second operation state, the switching network configured to initially disconnect at least one antenna from its corresponding radio chain and connect said at least one disconnected antenna to another of said corresponding radio chains via at least a part of the beamforming network such that at least two antennas are connected to the same radio chain, and wherein said disconnected radio chain is at least initially turned off, the node further configured at least at the start of the second state of operation to perform beamforming for said at least two antennas by said beamforming network.