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For NSI selection, for the above proposal of coverageArea specification, OOF can check if the coverageArea is a subset of the coverageArea of an existing NSI (when sharing is allowed) en when determining feasibility of reuse. It would be better to do this check in a separate method, so that it can be easily replaced by another one, when a different approach of specifying coverageArea is adopted. This check can be taken up even beyond H-release.
2. Decomposition of RAN NF Slice Profile for each Near-RT RIC
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For Honolulu, we can start with a very simple approach of doing this decomposition based on the number of cells controlled by each Near-RT RIC for a given S-NSSAI.
| Slice Profile Attribute that needs decomposition | Decomposed Value sent to Near-RT RIC | RRM policy value to be sent to CU/DU | Remarks |
|---|---|---|---|
| maxNumberofUEs | Based on RRC (RRM Policy) distribution across cells (NRCellCUs), maxNumberofUEs split to be determined (using activityFactor). | Total RRC (across NRCellCUs, GNBCUCPFunctions for the S-NSSAI) to be determined based on activityFactor and maxNumberofUEs. Then RRC to be distributed across the NRCellCUs in the coverageAreaTAList based on current RRC occupancy levels (i.e., % already consumed by other slice instances). |
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| Total DRBs (across GNBCUUPFunctions) to be determined to be determined based on activityFactor and maxNumberofUEs (and average number of radio bearers per UE???). Then DRB to be distributed across the GNBCUUPFunctions in the coverageAreaTAList based on current DRB occupancy levels (i.e., % already consumed by other slice instances). |
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| areaTrafficCapDL, areaTrafficCapUL | Based |
| on expDataRateDL (currently copied from dLThptPerSlice) and expDataRateUL (currently copied from uLThptPerSlice) and the ratio of coverage area of the Near-RT RIC over the total coverage area (determined by number of cells mapped under it). | ||
| expDataRateDL, expDataRateUL | (At present, this has to be determined from the value in the Slice Profile divided by (number of UEs * activity factor. Later when this carries the data rate per UE correctly, no decomposition is required)) |
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3. Enhancements in NSI/NSSI selection
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Refer NST Selection for relevant info.
7. Slice Modification recommendations
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