POWER CONTROL FOR COMMUNICATIONS SYSTEMS UTILIZING HIGH SPEED SHARED CHANNELS

摘要

A method and apparatus are described for controlling transmitter power in a wireless communication system in which both dedicated and shared channels are utilized. A wireless transmit/receive unit (WTRU) may receive a first channel (e.g., downlink shared channel), power commands for a second channel (e.g., dedicated channel) and power commands for a third channel (e.g., uplink shared channel). The WTRU may transmit in a transmission time interval at least one of the second channel and the third channel. Acknowledgments and negative acknowledgements to signals received over the first channel may be sent on the third channel. The WTRU may determine a transmission power level of the second channel in response to the second channel power commands and not the third channel power commands. The WTRU may determine a transmission power level of the third channel in response to the third channel power commands and not the second channel power commands.

主权项

1. A wireless transmit receive unit (WTRU) comprising:
a receiver configured to receive a first channel, power commands for a second channel, and power commands for a third channel; a transmitter configured to transmit in a transmission time interval at least one of the second channel and the third channel; wherein acknowledgments and negative acknowledgements to signals received over the first channel are sent on the third channel; and a processor configured to determine a transmission power level of the second channel in response to the second channel power commands and not the third channel power commands, and to determine a transmission power level of the third channel in response to the third channel power commands and not the second channel power commands.