Patent ID: 9479992
Filing Date: 2016-10-25
CPC Classification: H04L,H04W

Claim Text:
1. A method of controlling interference for a closed subscriber group (CSG) base station in a macro base station, the method comprising: setting a primary component carrier (PCC) as a first carrier and setting a secondary component carrier (SCC) as a second carrier; monitoring a signal-to-interference plus noise ratio (SINR) of the first carrier or the second carrier; determining whether the SINR of the first carrier is smaller than a predetermined threshold; if the SINR of the first carrier is smaller than the predetermined threshold, releasing the first carrier from the PCC and changing the second carrier to the PCC through handover; and changing a mode of the first carrier to a hybrid mode or an open mode, releasing existing SCCs and reconfiguring the SCC with new component carriers (CCs), adding the first carrier as the SCC and permitting macro user equipment (UE) that is a non-closed subscriber group member to access the first carrier after the first carrier has been released from the PCC, wherein the PCC is shared with the macro base station.