Case Studied on Federated learning Deployment in O-RAN 2023/05/11

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Reference: O-RAN.WG1.OAD-R003-v08.00

Reference: O-RAN.WG1.OAD-R003-v08.00

O-RAN RAN Intelligent Controller (RIC) • •

Open fronthaul

O1 O2 A1 OFH (M) O1 O1 O1 O-Cloud O-DU O-RU O-RU Near-RT RIC Near-RT RIC O-CU-CP O-CU-UP Non-RT RIC O1 rAPP SMO • • • Reference: https://thc1006.blogspot.com/2023/04/blog-post.html

Case Studied on FL Deployment in O-RAN ⚫ ⚫ Reference: O-RAN.WG2.AIML-v01.03

FL is suitable for O-RAN, is also based on a Disaggregated and Distributed split architecture (O-DU and O-RU). O-RU Subnet O-DU Single O-RU O-CU-CP O-CU-UP Reference：Deep Learning for B5G Open Radio Access Network: Evolution, Survey, Case Studies, and Challenges

O-RU Subnet O-DU Single O-RU Local Model Local Model

Open-Fronthaul (O-FH) Split Option 7.2x 規格 FL Split Option Fronthaul D to A | A to D RU DU

Local Model Local Model Local Model O-DU O-CU-CP O-CU-UP F1-C F1-U O1 O-FH Models Aggregation

Train a Global Model Deploy Global model in “Related” Near RT RIC xApps Models Aggregation Deploy via A1 Reference: O-RAN.WG2.AIML-v01.03

• 因為應用情境 (scenario) 的不同， Near-RT RIC 會需要運行多個應用程式(xApps)， 進行資料監控，並對 RAN 功能（Function）的參數進行調整，才能達成應用情境 的需求；Near-RT RIC 的控制決策，仍須根據 Non-RT RIC 提供的 Policy 與指令 等…進行 RAN 控制的調整優化。 Introduction to xApps Reference:https://thc1006.blogspot.com/2023/01/near-rt-ric.html

Local Model Local Model Local Model O-DU O-CU-CP O-CU-UP F1-C F1-U O-FH (Network Functions，NFs) (O-CU、O-DU、O-RU)

將來自 NF 的數據進行儲存： Reference: https://wiki.o-ran-sc.org/display/OAM/OAM+Architecture