+============
+
+This section tabulates the APIs Aligned(Implemented)/Not Implemented/Additional APIs between various modules of
+ODU-High and also with external modules of ORAN.
+
+*****************
+F1 Interface APIs
+*****************
+
+Below table lists APIs Aligned(Implemented)/Not Implemented at F1 interface of
+ODU-High i.e. between O-DU and O-CU. These are in line with 3GPP 38.473 V15.3.0.
+
++------------+-------------------------------+-----------------+-----------+-----------------------------------------+
+| Interface | API | Status | Section | Remark |
++============+===============================+=================+===========+=========================================+
+| |Reset | Aligned |9.2.1.1 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |Reset Acknowledge | Aligned |9.2.1.2 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |Error Indication | Not Implemented |9.2.1.3 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |F1 Setup Request | Aligned |9.2.1.4 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |F1 Setup Response | Aligned |9.2.1.5 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |F1 Setup Failure | Not Implemented |9.2.1.6 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |GNB-DU Configuration Update | Aligned |9.2.1.7 | |
+| **CU** +-------------------------------+-----------------+-----------+-----------------------------------------+
+| & **DU** |GNB-DU Configuration Update | Aligned |9.2.1.8 | |
+| |Acknowledge | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |GNB-DU Configuration Update | Not Implemented |9.2.1.9 | |
+| |Failure | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |GNB-CU Configuration Update | Not Implemented |9.2.1.10 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |GNB-CU Configuration Update | Not Implemented |9.2.1.11 | |
+| |Acknowledge | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |GNB-CU Configuration Update | Not Implemented |9.2.1.12 | |
+| |Failure | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |GNB-DU Resource Coordination | Not Implemented |9.2.1.13 | |
+| |Request | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |GNB-DU Resource Coordination | Not Implemented |9.2.1.14 | |
+| |Response | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |GNB-DU Status Indication | Not Implemented |9.2.1.15 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UE Context Setup Request | Aligned |9.2.2.1 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UE Context Setup Response | Aligned |9.2.2.2 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UE Context Setup Faliure | Not Implemented |9.2.2.3 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UE Context Release Request | Aligned |9.2.2.4 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UE Context Release Command | Aligned |9.2.2.5 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UE Context Release Complete | Aligned |9.2.2.6 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UE Context Modification | Aligned |9.2.2.7 | |
+| |Request | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UE Context Modification | Aligned |9.2.2.8 | |
+| |Response | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UE Context Modification | Not Implemented |9.2.2.9 | |
+| |Failure | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UE Context Modification | Not Implemented |9.2.2.10 | |
+| |Required | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UE Context Modification | Not Implemented |9.2.2.11 | |
+| |Confirm | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UE Inactivity Notification | Not Implemented |9.2.2.12 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |Notify | Not Implemented |9.2.2.13 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |Initial UL RRC Message | Aligned |9.2.3.1 | |
+| |Transfer | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |DL RRC Message Transfer | Aligned |9.2.3.2 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |UL RRC Message Transfer | Aligned |9.2.3.3 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |Write-Replace Warning Request | Not Implemented |9.2.4.1 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |Write-Replace Warning Response | Not Implemented |9.2.4.2 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |PWS Cancel Request | Not Implemented |9.2.4.3 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |PWS Cancel Response | Not Implemented |9.2.4.4 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |PWS Restart Indication | Not Implemented |9.2.4.5 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |PWS failure Indication | Not Implemented |9.2.4.6 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |System Information Delivery | Not Implemented |9.2.5.1 | |
+| |Command | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |Paging | Aligned |9.2.6.1 | |
++------------+-------------------------------+-----------------+-----------+-----------------------------------------+
+
+*****************
+E2 Interface APIs
+*****************
+
+This section tabulates the APIs Aligned(Implemented)/Not Implemented between ODU-High and Near-RT RIC.
+These are in line with O-RAN.WG3.E2GAP-R003-v03.00 and O-RAN.WG3.E2AP-R003-v03.00.
+Below mentioned section number are taken reference from sections of O-RAN.WG3.E2AP-R003-v03.00.
+
++------------+-------------------------------+-----------------+-----------+-----------------------------------------+
+| Interface | API | Status |Section | Remark |
++============+===============================+=================+===========+=========================================+
+| |RIC Subscription procedure | Aligned |8.2.1 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |RIC Subscription Delete | Aligned |8.2.2 | |
+| |procedure | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |RIC Subscription Delete | Aligned |8.2.2A | |
+| |Required procedure | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |RIC Indication procedure | Aligned |8.2.3 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |RIC Control procedure | Not Implemented |8.2.4 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |RIC Subscription Modification | Aligned |8.2.5 | |
+| |procedure | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| **DU** |RIC Subscription Modification | Aligned |8.2.6 | |
+| &**RIC** |Required procedure | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |RIC query procedure | Not Implemented |8.2.7 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |E2 Setup procedure | Aligned |8.3.1 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |Reset procedure | Aligned |8.3.2 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |Error Indication | Aligned |8.3.3 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |RIC Service Update procedure | Aligned |8.3.4 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |E2 Node Configuration Update | Aligned |8.3.5 | |
+| |procedure | | | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |E2 Connection Update procedure | Aligned |8.3.6 | |
+| +-------------------------------+-----------------+-----------+-----------------------------------------+
+| |E2 Removal procedure | Aligned |8.3.7 | |
++------------+-------------------------------+-----------------+-----------+-----------------------------------------+
+
+********************************
+ODU-High Internal Interface APIs
+********************************
+
+Below table lists APIs Aligned(Implemented)/Not Implemented/Additional APIs between various modules of ODU-High.
+These are in line with ORAN-WG8.AAD-v9.00.00, hereafter referred to as AAD Spec.