LTE FDD TDD CA FDD TDD HANDLING FDD AND TDD TIMING OFFSET IN FDD AND TDD CA IN LTE

摘要

Aspects of the present disclosure provide a method and apparatus for determining the timing of uplink transmissions for UEs communicating in carrier aggregation involving both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers / RTI A timing advance (TA) offset value for a user equipment (UE) to use for uplink transmission is determined based at least in part on which of the CCs carry a physical uplink control channel (PUCCH).