Patent ID: 9749869
Date: 2017-08-29
CPC Classifications: H04W

Claim:
1. A method of reducing interference to reception of a first radio communications signal received at a first device, the first signal being transmitted on one of a plurality of first frequency channels in accordance with a channel map, the channel map defining for each of a plurality of regions a mapping of each of the plurality of first frequency channels on which the first signal is transmitted, the interference being caused by a base station transmitting data to or receiving data from a second device via second radio communication signals in a vicinity of the first device, the second radio communication signals being transmitted from the base station to the second device via or transmitted from the second device to the base station via second frequency channels divided into frequency sub-channels, the method comprising: identifying a geographical location of the base station; determining from the geographical location of the base station a region in which the base station is located by referring to a region map indicating a geographical distribution of regions; identifying the channel map associated with the region by referring to information indicating the channel map associated with the region; and depending on whether the channel map indicates that at least one of the first frequency channels is adjacent to the second frequency channel, adapting the transmission of the second radio communication signals between the base station and second device in accordance with the identified channel map to reduce interference at the first device by selectively limiting or blocking one or more of the frequency sub-channels of the second frequency channels.