| 摘要 |
In a first configuration, a UE may determine a PRACH power ramp-up Pramp-up for the PRACH with respect to a previously unsuccessful PRACH transmission (e.g., a previously unsuccessful PRACH transmission with a highest transmission power). In a second configuration, when the UE is in a power-limited scenario, the UE drops/refrains from transmitting the PRACH transmission if Pramp-up−Pscal<Pdrop, and transmits the PRACH otherwise, where Pscal is the power scaling factor, Pramp-up is the configured ramp-up power value, and Pdrop is a threshold. In a third configuration, the UE determines whether to increment a Preamble_Transmission_Counter. In one sub-configuration, the UE increments the Preamble_Transmission_Counter when the PRACH transmission takes place, and does not increment the Preamble_Transmission_Counter otherwise. In another sub-configuration, the UE increments the Preamble_Transmission_Counter when the PRACH transmission takes place and Pramp-up−Pscal≧Pcount, where Pcount is a threshold, and does not increment the Preamble_Transmission_Counter otherwise. |
