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US 8,605,686 B2Granted
Method and apparatus for power control in a wireless communication system
AssigneeQUALCOMM Incorporated
InventorStein A. Lundby
Life of this patent
Estimating the term…
Abstract
Method and Apparatus for performing power control on the power control commands transmitted on a forward link in a wireless communication system. The power level of the power control bits on the forward link are adjusted in response to power commands received on the reverse link. The mobile station measures the power level of the adjusted power control bits to measure the quality of the forward link.
Claims32
An apparatus comprising:
- a determination unit operative to determine a reverse link power control instruction received on a reverse link for base station transmission on a forward link;
- an adjustment unit coupled to the determination unit, the adjustment unit operative to adjust a transmission power level of a forward link power control instruction based on the reverse link power control instruction, wherein the transmission power level of the forward link power control instruction is initially set to a reference value;
- and
- a transmitter operative to transmit the forward link power control instruction on a forward link common channel, wherein the forward link common channel is shared by a plurality of remote stations.
1 more element
An apparatus comprising:
- a link quality estimation unit operative to generate a link quality estimation in response to a forward link power control instruction received on a forward link common channel, wherein the link quality estimation is a SNR and the apparatus shares the forward link common channel with at least one remote station;
- and
- a power control unit coupled to the link quality estimation unit, the power control unit operative to generate a reverse link power control instruction in response to the link quality estimation,
- wherein the reverse link power control instruction includes one or more commands configured to adjust a transmit power of the forward link at a base station.
1 more element
A method for power control in a wireless communication system, the method comprising:
- generating a link quality estimation in response to a forward link power control instruction received on a forward link common channel, wherein the link quality estimation is a SNR and the forward link common channel is shared by a plurality of remote stations;
- and
- generating a reverse link power control instruction in response to the link quality estimation,
- wherein the reverse link power control instruction includes one or more commands configured to adjust a transmit power of the forward link at a base station.
1 more element
A method for power control in a wireless communication system, the method comprising:
- determining a reverse link power control instruction received on a reverse link for base station transmission on a forward link;
- adjusting a transmission power level of a forward link power control instruction based on the reverse link power control instruction, wherein a transmission power level of the forward link power control instruction is initially set to a reference value;
- and
- transmitting the forward link power control instruction on a forward link common channel, wherein the forward link common channel is shared by a plurality of remote stations.
1 more element
An apparatus comprising:
- means for generating a link quality estimation in response to a forward link power control instruction received on a forward link common channel, wherein the link quality estimation is a SNR and the apparatus shares the forward link common channel with at least one remote station;
- and
- means for generating a reverse link power control instruction in response to the link quality estimation,
- wherein the reverse link power control instruction includes one or more commands configured to adjust a transmit power of the forward link at a base station.
1 more element
An apparatus comprising:
- means for determining a reverse link power control instruction received on a reverse link for base station transmission on a forward link;
- means for adjusting a transmission power level of a forward link power control instruction based on the reverse link power control instruction, wherein the transmission power level of the forward link power control instruction is initially set to a reference value, wherein the means for adjusting are coupled to the means for determining;
- and
- means for transmitting the forward link power control instruction on a forward link common channel, wherein the forward link common channel is shared by a plurality of remote stations.
1 more element
A machine-readable medium embodying a method for power control in a remote station, the method comprising:
- generating a link quality estimation in response to a forward link power control instruction received on a forward link common channel, wherein the link quality estimation is a SNR and the remote station shares the forward link common channel with at least one other remote station;
- and
- generating a reverse link power control instruction in response to the link quality estimation,
- wherein the reverse link power control instruction includes one or more commands configured to adjust a transmit power of the forward link at a base station.
1 more element
A remote station, comprising:
- a link quality estimation unit operative to generate a link quality estimation in response to a forward link power control instruction received on a forward link common channel, wherein the link quality estimation is a SNR and the remote station shares the forward link common channel with at least one other remote station;
- a power control unit coupled to the link quality estimation unit, the power control unit operative to generate a reverse link power control instruction in response to the link quality estimation;
- and
- one or more antennas configured to receive the forward link power control instruction on the forward link,
- wherein the reverse link power control instruction includes one or more commands configured to adjust a transmit power of the forward link at a base station.
2 more elements
A machine-readable medium embodying a method for power control in a base station, the method comprising:
- determining a reverse link power control instruction received on a reverse link for base station transmission on a forward link;
- adjusting a transmission power level of a forward link power control instruction based on the reverse link power control instruction, wherein the transmission power level of the forward link power control instruction is initially set to a reference value;
- and
- transmitting the forward link power control instruction on a forward link common channel, wherein the forward link common channel is shared by a plurality of remote stations.
1 more element
A base station, comprising:
- a determination unit operative to determine a reverse link power control instruction received on a reverse link for base station transmission on a forward link;
- an adjustment unit coupled to the determination unit, the adjustment unit operative to adjust a transmission power level of a forward link power control instruction based on the reverse link power control instruction, wherein the transmission power level of the forward link power control instruction is initially set to a reference value;
- one or more antennas configured to receive the reverse link power control instruction on the reverse link;
- and
- a transmitter operative to transmit the forward link power control instruction on a forward link common channel, wherein the forward link common channel is shared by a plurality of remote stations.
2 more elements
Dependencies are inferred from the claim text.