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- Interface between L1 and Front haul, it will adopt the WG4 specification for the CUS plane communication.
- Interface between O-DU Low and O-DU High, FAPI interface will be adopt according to WG8 AAL specification.
- Interface between O-DU Low and accelerator, it's the hot topic in WG6 now, DPDK BBDev was adopted as previous current design, it will follow the WG6 definition after WG6 specification is finalized.