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OpenAirInterface is constantly evolving and you are welcome to contribute to its development.
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# OpenAirInterface Latest Releases #
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The current state of the RAN (`develop` and `master` branches) and the EPC is available at
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[OAI Feature Sets](https://gitlab.eurecom.fr/oai/openairinterface5g/-/wikis/OpenAirFeatures/).
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# OpenAirInterface Roadmap / Work in progress #
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The main phases are as follows:
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- Phase 1: "noS1" 5G-NR (with pre-configured gNB and OAI UE, no core network)
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- Phase 2: E-UTRA - NR dual connectivity (NSA architecture option 3x, with 4G CN) with COTS UE, **ETA Q2-2020**
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- Phase 3: StandAlone (with 5G CN) with COTS UE, **ETA Q4-2020**
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As intermediate steps to reach these goals, we can mention:
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- Full DL Transmission (ETA June 2020)
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- Complete validation of DL-HARQ procedures
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- Integration with higher layers to inject real traffic
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- Full UL Transmission (ETA July 2020)
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- Further Improvements (ETA Q3-2020)
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- gNB: replace dummy scheduler with advanced scheduler
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- support for multiple users, beamforming
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- PHY: PTRS, multiple DMRS for PDSCH and PUSCH
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- UE: Completion of random access procedure
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- Support for Beamforming (mainly FR2)
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- Multiple SSBs and RACH occasions
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- RRC config and MAC scheduling of CSI-RS
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- UE measurements of CSI-RS and feedback reporting
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- RRC config and MAC handling of TCI states
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- Support for MIMO
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- for SA Mode (ETA Q4-2020)
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- RRC
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- SDAP
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- N2/N3 interface
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<table style="border-collapse: collapse; border: none;">
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# OpenAirInterface Development Projects #
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A more detailed view of the OAI RAN development projects is available on this [Trello board](https://trello.com/b/7kFj0kFp/oai-weekly-meetings).
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