3GPP Message Dictionary

FeatureSetDownlink-v1800

TS 38.331 V18.5.1 2025-03
FeatureSetDownlink-v1800 ::= SEQUENCE {
    -- R1 40-1-14a: Dynamic switching - scheme A
    dynamicSwitchingA-r18                           ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-1-14b: Dynamic switching - scheme B
    dynamicSwitchingB-r18                           ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-3-2-11: Aperiodic CSI report timing relaxation for doppler codebook based on Type-II codebook
    aperiodicCSI-TimeRelaxation-r18                 SEQUENCE {
        valueW-r18                                           SEQUENCE{
            scs-15kHz                               ENUMERATED {value1, value2}                                              OPTIONAL,
            scs-30kHz                               ENUMERATED {value1, value2}                                              OPTIONAL,
            scs-60kHz                               ENUMERATED {value1, value2}                                              OPTIONAL,
            scs-120kHz                              ENUMERATED {value1, value2}                                              OPTIONAL
        },
        timeRelaxation-r18                          ENUMERATED {cap1, cap2}
    }                                                                                                                        OPTIONAL,
    -- R1 40-4-1: Basic feature of Rel.18 enhanced DMRS ports for PDSCH for scheduling of mapping type A
    pdsch-TypeA-DMRS-r18                            ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-1a: Basic feature of Rel.18 enhanced DMRS ports for PDSCH for scheduling of mapping type B
    pdsch-TypeB-DMRS-r18                            ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-1b: 1 symbol FL DMRS and 2 additional DMRS symbols for more than one port for Rel.18 enhanced DMRS ports for PDSCH
    pdsch-1SymbolFL-DMRS-Addition2Symbol-r18        ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-1c: Alternative additional DMRS position for co-existence with LTE CRS for Rel.18 enhanced DMRS ports for PDSCH
    pdsch-AlternativeDMRS-Coexistence-r18           ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-1d: 2 symbols FL-DMRS for Rel.18 enhanced DMRS ports for PDSCH
    pdsch-2SymbolFL-DMRS-r18                        ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-1e: 2-symbol FL DMRS + one additional 2-symbols DMRS for Rel.18 enhanced DMRS ports for PDSCH
    pdsch-2SymbolFL-DMRS-Addition2Symbol-r18        ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-1f: 1 symbol FL DMRS and 3 additional DMRS symbols for Rel.18 enhanced DMRS ports for PDSCH
    pdsch-1SymbolFL-DMRS-Addition3Symbol-r18        ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-1g: DMRS type for Rel.18 enhanced DMRS ports for PDSCH
    pdsch-DMRS-Type-r18                             ENUMERATED {etype1, etype1And2}                                          OPTIONAL,
    -- R1 40-4-1h: 1 port DL PTRS for Rel.18 enhanced DMRS ports for PDSCH with rank 1-8
    pdsch-1PortDL-PTRS-r18                          ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-1i: 2 port DL PTRS for Rel.18 enhanced DMRS ports for PDSCH with rank 1-8
    pdsch-2PortDL-PTRS-r18                          ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-1j: Support 1 symbol FL DMRS and 2 additional DMRS symbols for at least one port for scheduling of mapping type A
    mappingTypeA-1SymbolFL-DMRS-Addition2Symbol-r18 ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-2: Capability on the maximum number of configured DMRS types for PDSCH across all DL DCI formats per cell
    maxNumberDMRS-AcrossAllDL-DCI-r18               INTEGER (2..4)                                                           OPTIONAL,
    -- R1 40-4-4: Reception of PDSCH without the scheduling restriction for Rel.18 eType1 DMRS ports
    pdsch-ReceptionWithoutSchedulingRestriction-r18 ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-4a: Reception of PDSCH without the scheduling restriction for Rel.18 eType1 DMRS ports for PDSCH with fdmSchemeA
    pdsch-ReceptionSchemeA-r18                      ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-4b: Reception of PDSCH without the scheduling restriction for Rel.18 eType1 DMRS ports for PDSCH with fdmSchemeB
    pdsch-ReceptionSchemeB-r18                      ENUMERATED {supported}                                                   OPTIONAL,

    -- R1 40-4-5: Rel-18 DL DMRS with single DCI based M-TRP
    dmrs-MultiTRP-SingleDCI-r18                     ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-5a: Additional row(s) for antenna ports (0,2,3) for Rel.18 DL DMRS ports for single-DCI based M-TRP
    dmrs-MultiTRP-AdditionRows-r18                  ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-7: Rel-18 DL DMRS with M-DCI based M-TRP
    dmrs-MultiTRP-MultiDCI-r18                      ENUMERATED {supported}                                                   OPTIONAL,
    -- R1 40-4-12: Support of Rel-18 DMRS and PDSCH processing capability 2 simultaneously
    simulDMRS-PDSCH-r18                             SEQUENCE {
        scs-15kHz-r18                                   INTEGER (0..4)                                                       OPTIONAL,
        scs-30kHz-r18                                   INTEGER (0..5)                                                       OPTIONAL,
        scs-60kHz-r18                                   INTEGER (0..7)                                                       OPTIONAL
    }                                                                                                                        OPTIONAL,

    -- R1 53-1: Support RLM/BM/BFD and gapless L3 intra-frequency measurements based on CD-SSB outside active BWP without interruptions
    bwpOperationMeasWithoutInterrupt-r18            ENUMERATED {supported}                                                   OPTIONAL,

    -- R1 55-6: (2, 2) span-based PDCCH monitoring with additional restriction(s)
    pdcch-MonitoringSpan2-2-r18                     SEQUENCE{
        pdsch-ProcessingType1-r18                       SEQUENCE{
            scs-15kHz-r18                                   ENUMERATED {supported}                                           OPTIONAL,
            scs-30kHz-r18                                   ENUMERATED {supported}                                           OPTIONAL
        },
        pdsch-ProcessingType2-r18                       SEQUENCE{
            scs-15kHz-r18                                   ENUMERATED {supported}                                           OPTIONAL,
            scs-30kHz-r18                                   ENUMERATED {supported}                                           OPTIONAL
        }
    }                                                                                                                        OPTIONAL,
    -- R1 55-6b: Mix of Rel-16 PDCCH monitoring capability and Rel. 15 PDCCH monitoring capability on different carriers
    pdcch-MonitoringMixed-r18                       ENUMERATED {supported}                                                    OPTIONAL,
    -- R1 55-6h: PDCCH repetition for Rel-16 PDCCH monitoring
    mTRP-PDCCH-legacyMonitoring-r18                 SEQUENCE {
        scs-15kHz-r18                                   PDCCH-RepetitionParameters-r17                                       OPTIONAL,
        scs-30kHz-r18                                   PDCCH-RepetitionParameters-r17                                       OPTIONAL
    }                                                                                                                        OPTIONAL,

    -- R4 42-1: Support of SCell without SS/PBCH block for inter-band CA
    scellWithoutSSB-InterBandCA-r18                 CHOICE {
        supportOfSingleGroup                            ENUMERATED {referenceBand, scellWithoutSSB, both},
        supportOfMultipleGroups                         ENUMERATED {referenceBand1, scellWithoutSSB1, referenceBand2, scellWithoutSSB2}
    }                                                                                                                        OPTIONAL,
    dummy                                           SEQUENCE (SIZE (1..maxBandsMRDC)) OF Dummy-PDCCH-RACH-DL-Info-r18        OPTIONAL
}