A.1 Autonomous network level for radio network coverage optimization

28.1003GPPLevels of autonomous networkManagement and orchestrationRelease 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

A.1.1 Workflow

Following are the entire workflow for the radio network coverage optimization:

Intent handling:

– Task A: Coverage optimization policies generation and determination. The tasks of generating and determining the coverage optimization related policies (e.g. weak coverage issue identification policies, weak coverage analysis policies and coverage parameters adjustment policies) based on received coverage optimization intent (e.g. coverage targets (e.g. weak coverage ratio) for the specified areas).

– Task B: Coverage optimization intent evaluation. The tasks of evaluating coverage optimization intent fulfilment information (e.g. corresponding coverage targets are satisfied or not).

Awareness:

– Task C: Coverage related information collection. The tasks of collecting coverage related data, including coverage performance data (i.e. performance measurement, MDT data), coverage configuration data (e.g. coverageShape, digitalTilt and digitalAzimuth) and environment data (e.g. electronic map)).

Analysis:

– Task D: Coverage issues identification. The tasks of analysing the coverage performance (e.g. geographical grid based coverage performance) and identifying the coverage issues.

– Task E: Coverage deterioration prediction. The tasks of analysing current coverage performance and historical coverage performance, predicting the coverage performance trend in the future and identifying potential coverage performance deterioration in advance.

– Task F: Coverage issues demarcation. The tasks of analysing the coverage issues and determining the coverage categories (e.g. weak coverage, coverage hole, overshoot coverage).

– Task G: Coverage issue root cause analysis. The tasks of analysing the root cause (e.g. Inappropriate NRSectorCarrier parameters) of the identified or predicted coverage issues.

– Task H: Coverage adjustment solutions analysis. The tasks of generating the recommended coverage adjustment solution which can address the identified or predicted coverage issues.

Decision:

– Task I: Coverage adjustment solutions evaluation and determination. The tasks of evaluating the recommended coverage adjustment solutions, and deciding the coverage adjustment solutions to be executed.

Execution:

– Task J: Coverage adjustment solutions execution. The tasks of adjusting and configuring the coverage related parameters (e.g. selection of coverageShape, digitalTilt and digitalAzimuth).

A.1.2 Classification of autonomous network level

Level 0:

– All the tasks in the radio network coverage optimization workflow (Task A, Task B, Task C, Task D, Task E, Task F, Task G, Task H, Task I, Task J) are accomplished by human.

Level 1:

– Telecom system executes the tasks of coverage adjustment solutions execution based on the specified coverage related parameters (Task J). Telecom system also can execute the tasks of coverage related information collection based on the specified collection rule (Task C). At this level, telecom system can assist human to improve the execution and awareness efficiency for radio network coverage optimization.

– All the other tasks in the radio network coverage optimization workflow (Task A, Task B, Task D, Task E, Task F, Task G, Task H, Task I) are accomplished by human.

Level 2:

– Compared to Level 1, telecom system additionally executes the tasks of coverage issues identification, coverage issues demarcation and coverage issue root cause analysis based on the specified coverage issue identification and analysis rule (Task D, Task F, Task G). The tasks of coverage adjustment solutions execution (Task J) is fully accomplished by telecom system. At this level, telecom system can assist human to achieve the closed loop for radio network coverage optimization based on human defined rules.

– All the other tasks in the radio network coverage optimization workflow (Task A, Task B, Task E, Task H, Task I) are accomplished by human.

Level 3:

– Compared to Level 2, telecom system additionally executes the tasks of coverage adjustment solutions analysis (Task H) and coverage adjustment solutions evaluation and determination (Task I) based on the specified coverage adjustment policies and evaluation policies. In this level, telecom system also can execute the tasks of coverage deterioration prediction (Task E) based on the specified deterioration prediction policies. The tasks of coverage related information collection (Task C), coverage issues identification (Task D) and coverage issues demarcation (Task F) are fully accomplished by telecom system. At this level, the telecom system can achieve the closed loop automation for coverage optimization based on the human defined optimization policies.

– All the other tasks in the radio network coverage optimization workflow (Task A, Task B) are accomplished by human.

Level 4:

– Compared to Level 3, the telecom system additionally executes the tasks of coverage optimization policies determination (Task A), and coverage optimization intent evaluation (Task B) based on received coverage optimization intent and intent translation/evaluation policies. The tasks of coverage issue root cause analysis (Task G), coverage adjustment solutions analysis (Task H), coverage adjustment solutions evaluation and determination (Task I) and coverage deterioration prediction (Task E) are fully accomplished by telecom system. At this level, telecom system can achieve the intent driven closed loop automation for radio network coverage optimization based on human defined intent translation and evaluation policies

– The intent translation and evaluation policies maybe pre-defined and specified by human to assist the telecom system.

Level 5:

– Telecom system can autonomously execute the entire workflow of radio network coverage optimization for all scenarios, which means the telecom system can achieve the full autonomy for radio network coverage optimization for full scenarios.

Figure A.1.2-1: Classification of autonomous network level for coverage optimization

A.1.3 Example of mapping autonomous network level requirements for coverage optimization with functional/interface features.

Autonomous Network Level (ANL)	Requirements (Defined in Clause 7.1.4)	Potential implementation
Level 1	REQ-ANL-NetOpt-Level_1-MnS-1	This can be implemented by generic provisioning MnS defined in TS 28.532 [4] with CommonBeamformingFunction IOC defined in TS 28.541[5].
	REQ-ANL-NetOpt-Level_1-MnS-2	This can be implemented by generic performance assurance MnS (defined in TS 28.532[4]) with PerfMetricJob IOC defined in TS 28.622[6] and TraceJob IOC defined in TS 28.622[6].
	REQ-ANL-NetOpt-Level_1-MnS-3	This can be implemented by streaming data reporting MnS and file data reporting MnS defined in TS 28.532[4] with coverage related data (including SS-RSRP, SS-RSRQ, SS-SINR, RRC connection setup success (or failure) rate, handover failures) defined in TS 28.552 [7].
Level 2	REQ-ANL-NetOpt-Level_2-MnS-1	This can be implemented by generic provisioning MnS defined in TS 28.532 [4] with ThresholdMonitor IOC defined in TS 28.622 [6] to specify the SS-RSRP, SS-RSRQ, SS-SINR and handover failures threshold for coverage issues.
	REQ-ANL-NetOpt-Level_2-MnS-2	This can be implemented by notifyThresholdCrossing of performance assurance MnS defined in TS 28.532 [4] to notify SS-RSRP, SS-RSRQ, SS-SINR and handover failures threshold crossing for coverage issues.
	REQ-ANL-NetOpt-Level_2-MnS-3	This can be implemented by generic provisioning MnS defined in TS 28.532 [4] with ThresholdMonitor IOC defined in TS 28.622 [6] to specify the SS-RSRP, SS-RSRQ, SS-SINR and handover failures threshold for coverage hole issue and weak coverage issue.
	REQ-ANL-NetOpt-Level_2-MnS-4	This can be implemented by notifyThresholdCrossing of performance assurance MnS defined in TS 28.532 [4] to notify SS-RSRP, SS-RSRQ, SS-SINR and handover failures threshold crossing for coverage hole issue and weak coverage issue.
	REQ-ANL-NetOpt-Level_2-MnS-5	This can be implemented by using generic proivisioning MnS (e.g, createMOI) defined in TS 28.532 [4] to specify the coverage issue root cause analysis policies. The detailed coverage adjustment analytic policies is not specified in the present document.
Level 3	REQ-ANL-NetOpt-Level_3-MnS-1	This can be implemented by using generic proivisioning MnS (e.g, createMOI) defined in TS 28.532 [4] to specify the coverage adjustment analytic policies. The detailed coverage adjustment analytic policies is not specified in the present document.
Level 3	REQ-ANL-NetOpt-Level_3-MnS-3	This can be implemented by using generic provisioning MnS (e.g, createMOI) defined in TS 28.532 [4] to specify the coverage adjustment decision policies. The detailed coverage adjustment decision policies is not specified in the present document.