Controlling uplink transmit power responsive to combination of received power control commands during soft handover in a communication system

摘要

A method by a user equipment node controls uplink transmission power during soft handover of the user equipment node from a first base station to a second base station. A transmission power control command is received by the user equipment node from each of the first and second base stations during the soft handover. Uplink transmission power by the user equipment node of a high-speed dedicated physical control channel is controlled responsive to the received transmission power control commands.

主权项

1. A method by a user equipment node, UE, for controlling uplink transmission power during soft handover of the UE from a first base station to a second base station, the method comprising:
receiving a first transmission power control, TPC, command from the first base station and a second transmission power control, TPC, command from the second base station during the soft handover; and controlling uplink transmission power by the UE of a high-speed dedicated physical control channel (HS-DPCCH) responsive to the first and second TPC commands respectively received from the first and second base stations, wherein controlling uplink transmission power by the UE of the high speed dedicated physical control channel (HS-DPCCH) responsive to the first and second TPC commands comprises,
determining a power offset parameter (βHS) at the user equipment node responsive to a combination of the first and second TPC commands respectively received from the first and second base stations, andcontrolling the uplink transmission power (βHS-DPCCH) by the UE of the high speed dedicated physical control channel (HS-DPCCH) responsive to a result of multiplying the power offset parameter (βHS) and a transmission power level (PDPCCH) by the UE of a dedicated physical control channel (DPCCH).