1 .. This work is licensed under a Creative Commons Attribution 4.0 International License.
2 .. http://creativecommons.org/licenses/by/4.0
9 This is the API-docs for I release o-du/l2.
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.
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.
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 | |
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 | |
58 | +-------------------------------+-----------------+-----------+-----------------------------------------+
59 | |GNB-DU Resource Coordination | Not Implemented |9.2.1.13 | |
61 | +-------------------------------+-----------------+-----------+-----------------------------------------+
62 | |GNB-DU Resource Coordination | Not Implemented |9.2.1.14 | |
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 | |
81 | +-------------------------------+-----------------+-----------+-----------------------------------------+
82 | |UE Context Modification | Aligned |9.2.2.8 | |
84 | +-------------------------------+-----------------+-----------+-----------------------------------------+
85 | |UE Context Modification | Not Implemented |9.2.2.9 | |
87 | +-------------------------------+-----------------+-----------+-----------------------------------------+
88 | |UE Context Modification | Not Implemented |9.2.2.10 | |
90 | +-------------------------------+-----------------+-----------+-----------------------------------------+
91 | |UE Context Modification | Not Implemented |9.2.2.11 | |
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 | |
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 | |
119 | +-------------------------------+-----------------+-----------+-----------------------------------------+
120 | |Paging | Aligned |9.2.6.1 | |
121 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
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.
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 | |
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 | |
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 | |
164 | +-------------------------------+-----------------+-----------+-----------------------------------------+
165 | |E2 Connection Update procedure | Aligned |8.3.6 | |
166 | +-------------------------------+-----------------+-----------+-----------------------------------------+
167 | |E2 Removal procedure | Aligned |8.3.7 | |
168 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+
170 ********************************
171 ODU-High Internal Interface APIs
172 ********************************
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.
177 Note: DU APP module consist functionality related to F1 Handler, E2 Handler and O1 Handler.
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 |
361 | +-------------------------------+-----------------+-----------+-----------------------------------------+
362 | |Statistics Indication | Additional API | | Sending the calculated KPI value to DU |
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 +------------+-------------------------------+-----------------+-----------+-----------------------------------------+