Patent ID: 9584272
Date: 2017-02-28
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method in a first radio network node for measuring interference between the first radio network node and a second radio network node, the method comprising: obtaining configuration information that indicates which subframe is a designated subframe in which a reference signal for measurement of the interference is to be transmitted by the second radio network node, the designated subframe being designated for enabling measurement of the interference, wherein the designated subframe is a flexible uplink and/or downlink subframe; dynamically configuring the designated subframe in the first radio network node as an uplink subframe according to the obtained configuration information when the interference is to be measured, wherein the designated subframe is configured in the entirety or parts thereof; receiving, from the second radio network node in the designated subframe indicated by the configuration information, the reference signal; and determining a value of the interference based on the reference signal.