docs/api-docs.rst

   1 .. This work is licensed under a Creative Commons Attribution 4.0 International License.
   2 .. http://creativecommons.org/licenses/by/4.0
   3
   4
   5 ########
   6 API-Docs
   7 ########
   8
   9 This is the API-docs for I release o-du/l2.
  10
  11 .. contents::
  12    :depth: 3
  13    :local:
  14
  15 Introduction
  16 ============
  17
  18 This section tabulates the APIs Aligned(Implemented)/Not Implemented/Additional APIs between various modules of
  19 ODU-High and also with external modules of ORAN.
  20
  21 *****************
  22 F1 Interface APIs
  23 *****************
  24
  25 Below table lists APIs Aligned(Implemented)/Not Implemented at F1 interface of
  26 ODU-High i.e. between O-DU and O-CU. These are in line with 3GPP 38.473 V15.3.0.
  27
  28 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
  29 | Interface  |    API                        | Status          | Section   | Remark                                  |
  30 +============+===============================+=================+===========+=========================================+
  31 |            |Reset                          | Aligned         |9.2.1.1    |                                         |
  32 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  33 |            |Reset Acknowledge              | Aligned         |9.2.1.2    |                                         |
  34 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  35 |            |Error Indication               | Not Implemented |9.2.1.3    |                                         |
  36 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  37 |            |F1 Setup Request               | Aligned         |9.2.1.4    |                                         |
  38 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  39 |            |F1 Setup Response              | Aligned         |9.2.1.5    |                                         |
  40 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  41 |            |F1 Setup Failure               | Not Implemented |9.2.1.6    |                                         |
  42 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  43 |            |GNB-DU Configuration Update    | Aligned         |9.2.1.7    |                                         |
  44 | **CU**     +-------------------------------+-----------------+-----------+-----------------------------------------+
  45 | & **DU**   |GNB-DU Configuration Update    | Aligned         |9.2.1.8    |                                         |
  46 |            |Acknowledge                    |                 |           |                                         |
  47 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  48 |            |GNB-DU Configuration Update    | Not Implemented |9.2.1.9    |                                         |
  49 |            |Failure                        |                 |           |                                         |
  50 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  51 |            |GNB-CU Configuration Update    | Not Implemented |9.2.1.10   |                                         |
  52 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  53 |            |GNB-CU Configuration Update    | Not Implemented |9.2.1.11   |                                         |
  54 |            |Acknowledge                    |                 |           |                                         |
  55 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  56 |            |GNB-CU Configuration Update    | Not Implemented |9.2.1.12   |                                         |
  57 |            |Failure                        |                 |           |                                         |
  58 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  59 |            |GNB-DU Resource Coordination   | Not Implemented |9.2.1.13   |                                         |
  60 |            |Request                        |                 |           |                                         |
  61 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  62 |            |GNB-DU Resource Coordination   | Not Implemented |9.2.1.14   |                                         |
  63 |            |Response                       |                 |           |                                         |
  64 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  65 |            |GNB-DU Status Indication       | Not Implemented |9.2.1.15   |                                         |
  66 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  67 |            |UE Context Setup Request       | Aligned         |9.2.2.1    |                                         |
  68 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  69 |            |UE Context Setup Response      | Aligned         |9.2.2.2    |                                         |
  70 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  71 |            |UE Context Setup Faliure       | Not Implemented |9.2.2.3    |                                         |
  72 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  73 |            |UE Context Release Request     | Aligned         |9.2.2.4    |                                         |
  74 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  75 |            |UE Context Release Command     | Aligned         |9.2.2.5    |                                         |
  76 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  77 |            |UE Context Release Complete    | Aligned         |9.2.2.6    |                                         |
  78 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  79 |            |UE Context Modification        | Aligned         |9.2.2.7    |                                         |
  80 |            |Request                        |                 |           |                                         |
  81 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  82 |            |UE Context Modification        | Aligned         |9.2.2.8    |                                         |
  83 |            |Response                       |                 |           |                                         |
  84 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  85 |            |UE Context Modification        | Not Implemented |9.2.2.9    |                                         |
  86 |            |Failure                        |                 |           |                                         |
  87 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  88 |            |UE Context Modification        | Not Implemented |9.2.2.10   |                                         |
  89 |            |Required                       |                 |           |                                         |
  90 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  91 |            |UE Context Modification        | Not Implemented |9.2.2.11   |                                         |
  92 |            |Confirm                        |                 |           |                                         |
  93 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  94 |            |UE Inactivity Notification     | Not Implemented |9.2.2.12   |                                         |
  95 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  96 |            |Notify                         | Not Implemented |9.2.2.13   |                                         |
  97 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
  98 |            |Initial UL RRC Message         | Aligned         |9.2.3.1    |                                         |
  99 |            |Transfer                       |                 |           |                                         |
 100 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 101 |            |DL RRC Message Transfer        | Aligned         |9.2.3.2    |                                         |
 102 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 103 |            |UL RRC Message Transfer        | Aligned         |9.2.3.3    |                                         |
 104 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 105 |            |Write-Replace Warning Request  | Not Implemented |9.2.4.1    |                                         |
 106 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 107 |            |Write-Replace Warning Response | Not Implemented |9.2.4.2    |                                         |
 108 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 109 |            |PWS Cancel Request             | Not Implemented |9.2.4.3    |                                         |
 110 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 111 |            |PWS Cancel Response            | Not Implemented |9.2.4.4    |                                         |
 112 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 113 |            |PWS Restart Indication         | Not Implemented |9.2.4.5    |                                         |
 114 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 115 |            |PWS failure Indication         | Not Implemented |9.2.4.6    |                                         |
 116 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 117 |            |System Information Delivery    | Not Implemented |9.2.5.1    |                                         |
 118 |            |Command                        |                 |           |                                         |
 119 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 120 |            |Paging                         | Aligned         |9.2.6.1    |                                         |
 121 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
 122
 123 *****************
 124 E2 Interface APIs
 125 *****************
 126
 127 This section tabulates the APIs Aligned(Implemented)/Not Implemented between ODU-High and Near-RT RIC.
 128 These are in line with O-RAN.WG3.E2GAP-R003-v03.00 and O-RAN.WG3.E2AP-R003-v03.00.
 129 Below mentioned section number are taken reference from sections of O-RAN.WG3.E2AP-R003-v03.00.
 130
 131 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
 132 | Interface  |    API                        | Status          |Section    | Remark                                  |
 133 +============+===============================+=================+===========+=========================================+
 134 |            |RIC Subscription procedure     | Aligned         |8.2.1      |                                         |
 135 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 136 |            |RIC Subscription Delete        | Aligned         |8.2.2      |                                         |
 137 |            |procedure                      |                 |           |                                         |
 138 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 139 |            |RIC Subscription Delete        | Aligned         |8.2.2A     |                                         |
 140 |            |Required procedure             |                 |           |                                         |
 141 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 142 |            |RIC Indication procedure       | Aligned         |8.2.3      |                                         |
 143 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 144 |            |RIC Control procedure          | Not Implemented |8.2.4      |                                         |
 145 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 146 |            |RIC Subscription Modification  | Aligned         |8.2.5      |                                         |
 147 |            |procedure                      |                 |           |                                         |
 148 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 149 | **DU**     |RIC Subscription Modification  | Aligned         |8.2.6      |                                         |
 150 | &**RIC**   |Required procedure             |                 |           |                                         |
 151 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 152 |            |RIC query procedure            | Not Implemented |8.2.7      |                                         |
 153 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 154 |            |E2 Setup procedure             | Aligned         |8.3.1      |                                         |
 155 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 156 |            |Reset procedure                | Aligned         |8.3.2      |                                         |
 157 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 158 |            |Error Indication               | Aligned         |8.3.3      |                                         |
 159 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 160 |            |RIC Service Update procedure   | Aligned         |8.3.4      |                                         |
 161 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 162 |            |E2 Node Configuration Update   | Aligned         |8.3.5      |                                         |
 163 |            |procedure                      |                 |           |                                         |
 164 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 165 |            |E2 Connection Update procedure | Aligned         |8.3.6      |                                         |
 166 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 167 |            |E2 Removal procedure           | Aligned         |8.3.7      |                                         |
 168 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
 169
 170 ********************************
 171 ODU-High Internal Interface APIs
 172 ********************************
 173
 174 Below table lists APIs Aligned(Implemented)/Not Implemented/Additional APIs between various modules of ODU-High.
 175 These are in line with ORAN-WG8.AAD-v9.00.00, hereafter referred to as AAD Spec.
 176
 177 Note: DU APP module consist functionality related to F1 Handler, E2 Handler and O1 Handler.
 178
 179 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
 180 | Interface  |    API                        | Status          | Section   | Remark                                  |
 181 +============+===============================+=================+===========+=========================================+
 182 |            |Cell Configuration             | Aligned         |11.2.1.1   |                                         |
 183 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 184 |            |Slice Configuration            | Aligned         |11.2.1.2   |                                         |
 185 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 186 |            |Bring Cell Up                  | Additional API  |           |Notify DU to bring specific cell up      |
 187 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 188 |**SMO-OAM** |Bring Cell Down                | Additional API  |           |Notify DU to bring specific cell down    |
 189 |& **DU APP**+-------------------------------+-----------------+-----------+-----------------------------------------+
 190 |            |Slice PM                       | Additional API  |           |DU APP sends PM for all Slices every 60s |
 191 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 192 |            |Raise Cell Alarm               | Additional API  |           |DU APP alarms during cell state change   |
 193 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 194 |            |Set the cell operational state | Additional API  |           |DU APP inform cell state[ACTIVE/INACTIVE]|
 195 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
 196 |            |DL Transfer                    | Aligned         |11.2.3.1   |                                         |
 197 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 198 |            |UL Transfer                    | Aligned         |11.2.3.2   |                                         |
 199 | **RLC**    +-------------------------------+-----------------+-----------+-----------------------------------------+
 200 | & **MAC**  |Schedule Result Reporting(DL)  | Aligned         |11.2.3.3   |                                         |
 201 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 202 |            |Buffer Status Report(UL)       | Aligned         |11.2.3.4   |                                         |
 203 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
 204 |            |Air Interface Time             | Aligned         |11.2.4.1.1 |                                         |
 205 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 206 |            |Cell Configuration Request     | Aligned         |11.2.4.2.1 |                                         |
 207 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 208 |            |Cell Delete Request            | Aligned         |11.2.4.2.2 |                                         |
 209 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 210 |            |Slice Configuration Request    | Aligned         |11.2.4.2.3 |                                         |
 211 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 212 |            |Slice Reconfiguration Request  | Aligned         |11.2.4.2.4 |                                         |
 213 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 214 |            |Add UE Configuration Request   | Aligned         |11.2.4.2.5 |                                         |
 215 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 216 |            |UE Reconfiguration Request     | Aligned         |11.2.4.2.6 |                                         |
 217 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 218 |            |Delete UE Request              | Aligned         |11.2.4.2.7 |                                         |
 219 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 220 |            |DL HARQ Indication             | Aligned         |11.2.4.2.8 |                                         |
 221 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 222 |            |UL Harq Indication(CRC)        | Aligned         |11.2.4.2.9 |                                         |
 223 | **MAC** to +-------------------------------+-----------------+-----------+-----------------------------------------+
 224 |  **SCH**   |UL Channel Quality Information | Not Implemented |11.2.4.2.10|                                         |
 225 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 226 |            |DL Channel Quality Information | Not Impelemented|11.2.4.2.11|                                         |
 227 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 228 |            |RACH Indication Contents       | Aligned         |11.2.4.2.12|                                         |
 229 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 230 |            |Paging Indication Contents     | Aligned         |11.2.4.2.13|                                         |
 231 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 232 |            |RACH Resource Request          | Aligned         |11.2.4.2.14|                                         |
 233 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 234 |            |RACH Resource Release          | Aligned         |11.2.4.2.15|                                         |
 235 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 236 |            |DL RLC Buffer Status Info      | Aligned         |11.2.4.2.16|                                         |
 237 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 238 |            |Scheduling Request Indication  | Aligned         |11.2.4.2.17|                                         |
 239 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 240 |            |UL Buffer Status Report Ind    | Aligned         |11.2.4.2.18|                                         |
 241 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 242 |            |Power Headroom Indication      | Aligned         |11.2.4.2.19|                                         |
 243 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 244 |            |Statistics Request             | Additional API  |           | Adding new statistics group             |
 245 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 246 |            |Statistics Modification Request| Additional API  |           | Modification of statistics group        |
 247 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 248 |            |Statistics Delete Request      | Additional API  |           | Deletion of statistics group            |
 249 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
 250 |            |Cell Configuration Response    | Aligned         |11.2.4.3.1 |                                         |
 251 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 252 |            |Cell Delete Response           | Aligned         |11.2.4.3.2 |                                         |
 253 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 254 |            |Slice Configuration Response   | Aligned         |11.2.4.3.3 |                                         |
 255 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 256 |            |Slice ReConfiguration Response | Aligned         |11.2.4.3.4 |                                         |
 257 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 258 |            |UE Configuration Response      | Aligned         |11.2.4.3.5 |                                         |
 259 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 260 |            |UE ReConfiguration Response    | Aligned         |11.2.4.3.6 |                                         |
 261 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 262 |            |UE Delete Response             | Aligned         |11.2.4.3.7 |                                         |
 263 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 264 | **SCH** to |DL Scheduling Information      | Aligned         |11.2.4.3.8 |                                         |
 265 |    **MAC** +-------------------------------+-----------------+-----------+-----------------------------------------+
 266 |            |UL Scheduling Information      | Aligned         |11.2.4.3.9 |                                         |
 267 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 268 |            |RAR Information                | Not Required    |11.2.4.3.10|Included in DL Scheduling Info           |
 269 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 270 |            |Downlink Control Channel Info  | Not Required    |11.2.4.3.11|Included in DL Scheduling Info           |
 271 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 272 |            |Downlink Broadcast Allocation  | Not Required    |11.2.4.3.12|Included in DL Scheduling Info           |
 273 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 274 |            |Downlink Paging Allocation     | Aligned         |11.2.4.3.13|                                         |
 275 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 276 |            |HARQ Process Release           | Additional API  |           |SCH indicates MAC to release a HARQ      |
 277 |            |                               |                 |           |process in case a positive acknowledement|
 278 |            |                               |                 |           |is received or achieved maximum retrans. |
 279 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 280 |            |RACH Resource Response         | Additional API  |           |Response to RACH Resource Request for    |
 281 |            |                               |                 |           |dedicated resource for CF-RA             |
 282 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 283 |            |Statistics Response            | Additional API  |           |Response to statistics request           |
 284 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 285 |            |Statistics Modification        | Additional API  |           |Response to statistics modification      |
 286 |            |Resonse                        |                 |           |request                                  |
 287 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 288 |            |Statistics Delete Response     | Additional API  |           |Response to statistics delete request    |
 289 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 290 |            |Statistics Indication          | Additional API  |           |Calculate the KPI related to a specific  |
 291 |            |                               |                 |           |statistics group                         |
 292 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
 293 |            |Cell Start                     | Aligned         |1.1.1.1    |                                         |
 294 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 295 |            |Cell Stop                      | Aligned         |1.1.1.2    |                                         |
 296 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 297 |            |Cell Configuration Request     | Additional API  |           |Configures cell information at MAC.      |
 298 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 299 |            |Cell Configuration Response    | Additional API  |           |Response to cell Cfg Req from DUAPP      |
 300 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 301 |            |Cell Delete Request            | Additional API  |           |Deletes cell information at MAC.         |
 302 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 303 |            |Cell Delete Response           | Additional API  |           |Response to Cell Del request from DU APP |
 304 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 305 |            |Slice Configuration Request    | Additional API  |           |Configures Slice at MAC                  |
 306 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 307 |            |Slice ReConfiguration Request  | Additional API  |           |ReConfigures Slice at MAC                |
 308 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 309 |            |Slice Configuration Response   | Additional API  |           |Response to Slice Cfg req from DU APP    |
 310 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 311 |            |Slice ReConfiguration Response | Additional API  |           |Response to Slice ReCfg req from DU APP  |
 312 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 313 |**DU APP**  |UE Create Request              | Aligned         |1.1.1.3    |                                         |
 314 | & **MAC**  +-------------------------------+-----------------+-----------+-----------------------------------------+
 315 |            |UE Create Response             | Aligned         |1.1.1.4    |                                         |
 316 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 317 |            |UE Reconfiguration Request     | Aligned         |1.1.1.5    |                                         |
 318 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 319 |            |UE Reconfiguration Response    | Aligned         |1.1.1.6    |                                         |
 320 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 321 |            |UE Delete Request              | Aligned         |1.1.1.7    |                                         |
 322 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 323 |            |UE Delete Response             | Aligned         |1.1.1.8    |                                         |
 324 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 325 |            |RACH Resource Request          | Aligned         |1.1.1.9    |                                         |
 326 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 327 |            |RACH Resource Response         | Aligned         |1.1.1.10   |                                         |
 328 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 329 |            |RACH Resource Release          | Aligned         |1.1.1.11   |                                         |
 330 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 331 |            |UE Reset Request               | Not Implemented |1.1.1.12   |                                         |
 332 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 333 |            |UE Reset Response              | Not Implemented |1.1.1.13   |                                         |
 334 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 335 |            |UE Sync Status Indication      | Not Implemented |1.1.1.14   |                                         |
 336 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 337 |            |UL CCCH Indication             | Aligned         |1.1.1.15   |                                         |
 338 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 339 |            |DL CCCH Indication             | Aligned         |1.1.1.16   |                                         |
 340 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 341 |            |DL PCCH Indication             | Aligned         |1.1.1.17   |                                         |
 342 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 343 |            |DL Broadcast Request           | Not Implemented |1.1.1.18   |                                         |
 344 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 345 |            |Slot Indication                | Additional API  |           |Indication about the ongoing SFN and     |
 346 |            |                               |                 |           | Slot information to DU APP              |
 347 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 348 |            |Statistics Request             | Additional API  |           | Adding new statistics at DU layer       |
 349 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 350 |            |Statistics Response            | Additional API  |           | Response to statistics request from MAC |
 351 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 352 |            |Statistics Modification Request| Additional API  |           | Modification of statistics at DU layer  |
 353 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 354 |            |Statistics Modification        | Additional API  |           | Response to statistics modification     |
 355 |            |Response                       |                 |           | request from MAC                        |
 356 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 357 |            |Statistics Delete Request      | Additional API  |           | Deletion of statistics at DU layer      |
 358 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 359 |            |Statistics Delete Response     | Additional API  |           | Response to statistics delete request   |
 360 |            |                               |                 |           | from MAC                                |
 361 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 362 |            |Statistics Indication          | Additional API  |           | Sending the calculated KPI value to DU  |
 363 |            |                               |                 |           | from MAC                                |
 364 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
 365 |            |UE Create                      | Aligned         |11.2.5.1   |                                         |
 366 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 367 |            |UE Create Response             | Aligned         |11.2.5.2   |                                         |
 368 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 369 |            |UE Reconfiguration             | Aligned         |11.2.5.3   |                                         |
 370 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 371 |            |UE Reconfiguration Response    | Aligned         |11.2.5.4   |                                         |
 372 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 373 |            |UE Delete                      | Aligned         |11.2.5.5   |                                         |
 374 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 375 |            |UE Delete Response             | Aligned         |11.2.5.6   |                                         |
 376 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 377 |            |DL-RRC Message Transfer        | Aligned         |11.2.5.7   |                                         |
 378 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 379 |            |UL-RRC Message Transfer        | Aligned         |11.2.5.8   |                                         |
 380 |**DU APP**  +-------------------------------+-----------------+-----------+-----------------------------------------+
 381 |  & **RLC** |UL-RRC Message Delivery Report | Aligned         |11.2.5.9   |                                         |
 382 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 383 |            |RLC Max Retransmission Reached | Not Implemented |11.2.5.10  |                                         |
 384 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 385 |            |UL-RLC Re-establishment Request| Not Implemented |11.2.5.11  |                                         |
 386 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 387 |            |UL-RLC Re-establshment Response| Not Implemented |11.2.5.12  |                                         |
 388 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 389 |            |DL RRC Message Response        | Additional API  |           |Informs DU APP if a DL RRC Message was   |
 390 |            |                               |                 |           |successfuly procesed at RLC & sent to MAC|
 391 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 392 |            |DL User Data                   | Additional API  |           |DL user data exchanged from DUAPP to RLC |
 393 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 394 |            |UL User Data                   | Additional API  |           |UL user data exchanged from RLC to DUAPP |
 395 |            +-------------------------------+-----------------+-----------+-----------------------------------------+
 396 |            |Slice Performance Metrics      | Additional API  |           |Performance Metrics informed to DUAPP    |
 397 |            |                               |                 |           |every 60sec for every slice configured   |
 398 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
 399
 400