Method and apparatus for avoiding power scaling in uplink data transmission

摘要

Methods and apparatus for avoiding power scaling and controlling transmit power in uplink data transmission are provided. If a user equipment (UE) would be transmit-power limited when transmitting data concurrently on an uplink high speed dedicated physical control channel (HS-DPCCH) and an uplink data channel, the UE may forgo building data for transmission on the uplink data channel to avoid power scaling. If the UE would be transmit-power limited when transmitting data concurrently on an HS-DPCCH and a dedicated physical control channel (DPCCH), the UE may reduce the transmission power of a portion of the data transmitted on the DPCCH to avoid power scaling. The UE may also boost transmission power of a negative acknowledge transmission above network-specified power level.

主权项

1. A method of wireless communications operable at a user equipment (UE), comprising:
operating the UE in a minimum set enhanced uplink dedicated channel (E-DCH) transport format combination (E-TFC) mode, a minimum set transport format combination (TFC) mode, or both the minimum set E-TFC mode and minimum set TFC mode in a multiple radio access bearers (multi-RAB) mode in a transmission time interval (TTI); determining that first data is scheduled for transmission in an uplink high speed dedicated physical control channel (HS-DPCCH) in the TTI; determining that second data is scheduled for transmission in an uplink data channel in the TTI; and forgoing building the second data for transmission during the TTI, if the UE would be transmit-power limited in the TTI when transmitting the first data and second data concurrently while operating in the minimum set E-TFC mode, the minimum set TFC mode, or both the minimum set E-TFC mode and minimum set TFC mode in the multi-RAB mode.