Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives a radio bearer configuration. The UE also configures, based on the received radio bearer configuration, a radio bearer including a first logical channel on a first carrier and a second logical channel on a second carrier. The UE further determines whether to activate the radio bearer to perform duplication. In response to a determination to activate the radio bearer to perform duplication, the UE communicates a first packet on the first logical channel and communicates a duplicated first packet on the second logical channel.

Abstract: Aspects of the disclosure provide a method for data transmission prioritization in a communication device. The method can include receiving multiple streams of data units. Each stream of data units has a prioritized bit rate (PBR), a priority value, and a variable (Bj) representing a number of bits that are to be prioritized for transmission of data units of the respective stream. The method can further include allocating transmission resources to streams having a variable (Bj) larger than zero in an order based on the priority values for transmission of data units during a TTI up to a size of available data units in the respective stream, and allocating remaining transmission resources to streams having a variable Bj smaller than zero in an order based on the priority values for transmission data units during the TTI up to a size of available data units in the respective stream.