METHOD FOR CONTROLLING SWITCHING TIMING OF TDD TX/RX IN CLOUD RADIO ACCESS NETWORK

摘要

The present invention relates to a method for controlling switching timing of time division duplexing (TDD) transmission/reception in a cloud radio access network (CRAN) to accurately control the transmission and reception switching timing of a TDD signal. The method for controlling switching timing of TDD transmission/reception in CRAN is performed in the CRAN where a digital unit (DU) having a DU_CPRI_OBSAI_frame_timer and a DU_WiMAX_E-UTRA_frame_timer is connected to one or more radio unit (RU)s having an RU_CPRI_OBSAI_frame_timer and an RU_WiMAX_E-UTRA_frame_time. The present invention includes a step of synchronizing the RU_CPRI_OBSAI_frame_timer with the DU_CPRI_OBSAI_frame_timer.;COPYRIGHT KIPO 2015