Patent ID: 9036586
Filing Date: 2015-05-19
Classification: H04B,H04L,H04W

Abstract:
1. A method for transmitting precoding matrix information at a first user equipment in a multi-node system, the method comprising: receiving indication information from a first node, the indication information indicating whether or not the first user equipment is subject to interference by signals transmitted by the second node; measuring a downlink channel of the first node using a reference signal of the first node; when the indication information indicates that the first user equipment is subject to interference by signals transmitted by the second node, measuring a downlink channel of a second node using a reference signal of the second node; and transmitting precoding matrix information for the first user equipment to the first node, wherein the precoding matrix information is determined based on the measured downlink channel of the first node when the indication information indicates that the first user equipment is not subject to interference by signals transmitted by the second node, and wherein the precoding matrix information is determined based on both the measured downlink channel of the first node and the measured downlink channel of the second node when the indication information indicates that the first user equipment is subject to interference by signals transmitted by the second node.