Mapping of featuresetCombination for a supported band combination in NR

5G NR
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1

Hello All.

Can anyone share some details on mapping of featuresetCombination for a supported band combination in NR?

2

In the CA band combinations, number of component carriers are mentioned.

Feature set combination gives details like SCS ,MIMO , QAM, max PRB per component carriers etc.

There is detail mapping of each entry in band combination and feature set combination.

3

I just want to understand mapping by one example.

4

I have similar question as well; :slight_smile:

Looking for answer for the same.

5

Please follow below procedure on any actual UE capability mesage.

  1. From UE capability, check required band combination under supportedBandCombinationList.
    Note down “featureSetCombination” number in the same band combination

  2. Go to featureSetCombinations IE. Indexing start form 0. Go the index pointed by step1.
    In this structure, there will be sub structures per band in the band combination. Each structure will have multiple entries. These multiple entries points to featureSetsDownlink and featureSetsUplink supported for that band.
    Note down index numbers for downlinkSetNR and uplinkSetNR

  3. Now go to IE “featureSets ->featureSetsDownlink”. Indexing start form 1.
    Go the index pointed in step 2. It gives index numbers for featureSetsDownlinkPerCC/ featureSetsUplinkPerCC

  4. Go to IE featureSetsDownlinkPerCC/ featureSetsUplinkPerCC. Indexing start form 1.
    Go the index numbers noted in step 3. Number of indexes is equal to number of entries in structure observed in step 2.

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6

Thank you. Your answer makes a lot of sense. I have an additional question… Do you know if there is somewhere in the 3GPP standard that explains that featureSetCombinations IE have indexing that start from 0, while the other IEs such as feautreSets begin indexing at 1?