Outer loop power control for wireless communications
AssigneeInterDigital Technology Corporation
InventorsChang-Soo Koo, Sudheer A. Grandhi, Stephen E. Terry
Life of this patent
Estimating the term…
Abstract
A base station configured for outer loop power control receives an uplink dedicated channel transmission from a wireless transmit/receive unit. The base station transmits transmit power control commands in response to the received uplink channel transmission and determines if the wireless transmit/receive unit is in a discontinuous transmission mode. The base station adjusts a target SIR based on which transmission mode for the wireless transmit/receive unit is detected. The value for the transmit power control command is derived from the adjusted target SIR.
Claims4
A base station comprising:
- a receiver configured to receive an uplink dedicated channel transmission in a first mode and a second mode from a wireless transmit/receive unit (WTRU);
- wherein in the first mode, the uplink dedicated channel transmission is continuous and in the second mode, the uplink dedicated channel transmission is discontinuous;
- a transmitter configured to transmit power commands to the WTRU in response to the received uplink dedicated channel transmission;
- a processor configured to determine whether the WTRU is in the first mode or the second mode and adjust a target signal to interference ratio (SIR) based on the determined first mode or second mode;
- wherein a value of the transmit power command is derived from the adjusted target SIR.
A method implemented by a base station, comprising:
- receiving an uplink dedicated channel transmission in a first mode and a second mode from a wireless transmit/receive unit (WTRU);
- wherein in the first mode, the uplink dedicated channel transmission is continuous and in the second mode, the uplink dedicated channel transmission is discontinuous;
- determining whether the WTRU is in the first mode or the second mode;
- adjusting a target signal to interference ratio (SIR) based on the determined first or second state;
- and
- transmitting power commands to the WTRU in response to the received uplink dedicated channel;
- wherein a value of the transmit power command is derived from the adjusted target SIR.
Dependencies are inferred from the claim text.