Apparatus and method for controlling uplink interference in a wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsKi-Seob Hong, Byung-Chan Ahn, Hyun-Woo Lee, Seung-Joo Maeng
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Abstract
An apparatus and a method for controlling uplink interference in a wireless communication system. The method for controlling the uplink interference includes determining at least one interference signal power threshold determined by at least one neighbor Base Station (BS). The method also includes determining a transmit power offset for at least one serviced Mobile Station (MS) using the at least one interference signal power threshold. The method further includes sending the transmit power offset for the at least one MS to the at least one MS.
Claims18
A method for controlling uplink interference at a Base Station (BS) in a wireless communication system, the method comprising:
- determining at least one interference signal power threshold determined by at least one neighbor BS;
- determining a transmit power offset for at least one serviced Mobile Station (MS) using the at least one interference signal power threshold;
- and
- sending the transmit power offset for the at least one MS to the at least one MS,
- wherein determining the transmit power offset comprises:
- determining a path loss between the BS and the MS and a path loss between the neighbor BS and the MS;
- predicting a signal power when a transmit signal of the MS is received at the neighbor BS using at least one of the path loss between the BS and the MS and the path loss between the neighbor BS and the MS;
- and
- determining the transmit power offset of the MS using the predicted signal power and the interference signal power threshold determined by the neighbor BS.
An apparatus for controlling uplink interference at a Base Station (BS) in a wireless communication system, the apparatus comprising:
- an interface configured to communicate with at least one neighbor BS;
- a receiver configured to receive a signal from a Mobile Station (MS);
- a controller configured to determine a transmit power offset for at least one serviced MS using an interference signal power threshold determined by at least one neighbor BS and provided through the interface;
- and
- a transmitter configured to send the transmit power offset for the at least one MS determined by the controller, to the at least one MS,
- wherein the controller comprises:
- a path loss determiner configured to determine a path loss between the BS and the MS and a path loss between the neighbor BS and the MS;
- a receive power estimator configured to predict a signal power when a transmit signal of the MS is received at the neighbor BS using the path loss determined by the path loss determiner;
- and
- an offset determiner configured to determine the transmit power offset of the MS using the signal power predicted by the receive power estimator and the interference signal power threshold determined by the neighbor BS.
Dependencies are inferred from the claim text.