Patent ID: 9491662
Filing Date: 2016-11-08
CPC Classification: H04W

Claim Text:
1. A method in a radio network node for controlling usage of Radio Access Technology (RAT), and frequency bandwidth in a radio communications system, wherein the radio communications system comprises the radio network node configured to support transmission and reception of signals in a first RAT and in a second RAT, wherein the radio communications system further comprises one or more terminals, and wherein each terminal supports only the first RAT, only the second RAT or both RATs, the method comprising: allocating the first RAT to a first frequency bandwidth; allocating the second RAT to a second frequency bandwidth; and when a load on the first RAT is above a threshold, reallocating the first RAT to a third frequency bandwidth; wherein the third frequency bandwidth is greater than the first frequency bandwidth; and reallocating the second RAT to a fourth frequency bandwidth, wherein the fourth frequency bandwidth is smaller than the second frequency bandwidth; wherein the third and fourth frequency bandwidths are a subset of the first and second frequency bandwidths respectively.