Apparatus and method for uplink power control in wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsSung-Ho Lee, Keun-Chul Hwang, Yong-Seok Kim
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Abstract
An apparatus and method for controlling a transmit power of a sounding signal in a wireless communication system are provided. The method includes estimating a downlink Carrier to Interference and Noise Ratio (CINR) using at least one signal received from a Base Station (BS), determining a transmit power level for a sounding signal using a target CINR for the sounding signal, wherein the target CINR is determined based on the downlink CINR and multi-target CINR information, and transmitting the sounding signal according to the transmit power level.
Claims30
A method for an operation of a Mobile Station (MS) in a wireless communication system, the method comprising:
- estimating, by the MS, a downlink Carrier to Interference and Noise Ratio (CINR) using at least one signal received from a Base Station (BS);
- determining, by the MS, a transmit power level for an uplink sounding signal using a target CINR for the uplink sounding signal, wherein the target CINR is determined based on the downlink CINR and a multi-target CINR information which comprises a plurality of CINR candidates corresponding to downlink CINR regions;
- and
- transmitting, by the MS, the uplink sounding signal according to the transmit power level.
A method for an operation of a Base Station (BS) in a wireless communication system, the method comprising:
- estimating, by the BS, Noise and Interference (NI) of a sounding region;
- generating, by the BS, a first message including a multi-target Carrier to Interference and Noise Ratio (CINR) information for an uplink sounding signal and a second message including information regarding the NI of the sounding region;
- transmitting, by the BS, the first message and the second message to a Mobile Station (MS);
- and
- receiving by the BS, the uplink sounding signal from the MS.
A method for an operation of a Base Station (BS) in a wireless communication system, the method comprising:
- determining, by the BS, a target Carrier to Interference and Noise Ratio (CINR) for an uplink sounding signal using downlink CINR and multi-target CINR information;
- estimating, by the BS, Noise and Interference (NI) of a sounding region;
- generating, by the BS, a first message including the target CINR and a second message including information regarding the NI of the sounding region;
- transmitting, by the BS, the first message and the second message to a Mobile Station (MS);
- and
- receiving, by the BS, the uplink sounding signal from the MS.
An apparatus for a Mobile Station (MS) in a wireless communication system, the apparatus comprising:
- an estimator for estimating a downlink Carrier to Interference and Noise Ratio (CINR) using at least one signal received from a Base Station (BS);
- a calculator for determining a transmit power level for an uplink sounding signal using a target CINR for the uplink sounding signal, wherein the target CINR is determined based on the downlink CINR and multi-target CINR information which comprises a plurality of CINR candidates corresponding to downlink CINR regions;
- and
- a transmitter for transmitting the uplink sounding signal according to the transmit power level.
An apparatus for a Base Station (BS) in a wireless communication system, the apparatus comprising:
- an estimator for estimating Noise and Interference (NI) of a sounding region;
- a processor for generating a first message including multi-target Carrier to Interference and Noise Ratio (CINR) information for an uplink sounding signal and a second message including information regarding the NI of the sounding region;
- a transmit modem for transmitting the first message and the second message to a Mobile Station (MS);
- and
- a receive modem for receiving the uplink sounding signal from the MS.
An apparatus for a Base Station (BS) in a wireless communication system, the apparatus comprising:
- an estimator for estimating Noise and Interference (NI) of a sounding region;
- a processor for determining a target Carrier to Interference and Noise Ratio (CINR) for an uplink sounding signal using downlink CINR and multi-target CINR information, and for generating a first message including the target CINR and a second message including information regarding the NI of the sounding region;
- a transmit modem for transmitting the first message and the second message to a Mobile Station (MS);
- and
- a receive modem for receiving the uplink sounding signal from the MS.
Dependencies are inferred from the claim text.