CrossCarrierSchedulingConfig
CrossCarrierSchedulingConfig is an RRC information element of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.
Definition
The IE CrossCarrierSchedulingConfig is used to specify the configuration when the cross-carrier scheduling is used in a cell.
CrossCarrierSchedulingConfig ::= SEQUENCE {
schedulingCellInfo CHOICE {
own SEQUENCE { -- Cross carrier scheduling: scheduling cell
cif-Presence BOOLEAN
},
other SEQUENCE { -- Cross carrier scheduling: scheduled cell
schedulingCellId ServCellIndex,
cif-InSchedulingCell INTEGER (1..7)
}
},
...,
[[
carrierIndicatorSize-r16 SEQUENCE {
carrierIndicatorSizeDCI-1-2-r16 INTEGER (0..3),
carrierIndicatorSizeDCI-0-2-r16 INTEGER (0..3)
} OPTIONAL, -- Cond CIF-PRESENCE
enableDefaultBeamForCCS-r16 ENUMERATED {enabled} OPTIONAL -- Need S
]],
[[
ccs-BlindDetectionSplit-r17 ENUMERATED {oneSeventh, threeFourteenth, twoSeventh, threeSeventh,
oneHalf, fourSeventh, fiveSeventh, spare1} OPTIONAL -- Need R
]]
}Candidate change requests of v17.0.0
The CRs whose title or cover names this change, strong and likely matches only.
- CR 2878 r1 (strong): Introduction of NR dynamic spectrum sharing
Fields (11)
| Field | Description |
|---|---|
| schedulingCellInfo CHOICE { | |
| own SEQUENCE { | Parameters for self-scheduling, i.e., a serving cell is scheduled by its own PDCCH. |
| cif-Presence BOOLEAN | The field is used to indicate whether carrier indicator field is present (value true ) or not (value false ) in PDCCH DCI formats, see TS 38.213 [13]. If cif-Presence is set to true , the CIF value indicating a grant or assignment for this cell is 0. |
| other SEQUENCE { | Parameters for cross-carrier scheduling. If configured for an SpCell, the SpCell can be scheduled by the PDCCH on another SCell as well as by the PDCCH on the SpCell. If configured for an SCell, the SCell is scheduled by a PDCCH on another cell. |
| schedulingCellId ServCellIndex | If configured for an SpCell, this field indicates which SCell, in addition to the SpCell, signals the downlink allocations and uplink grants, if applicable, for the concerned SpCell. If configured for an Scell, this field indicates which cell signals the downlink allocations and uplink grants, if applicable, for the concerned SCell. In case the UE is configured with DC, the scheduling cell is part of the same cell group (i.e. MCG or SCG) as the scheduled cell. In case the UE is configured with two PUCCH groups, the scheduling cell and the scheduled cell are within the same PUCCH group. If drx-ConfigSecondaryGroup is configured in the MAC-CellGroupConfig associated with this serving cell, the scheduling cell and the scheduled cell belong to the same Frequency Range. In addition, the serving cell with an aperiodic CSI trigger and the PUSCH resource scheduled for the report are on the same carrier and serving cell, but the cell for which CSI is reported may belong to the same or a different Frequency Range. The network should not trigger a CSI request for a serving cell in the other Frequency Range when that serving cell is outside Active Time. |
| cif-InSchedulingCell INTEGER (1..7) | The field indicates the CIF value used in the scheduling cell to indicate a grant or assignment applicable for this cell, see TS 38.213 [13]. If configured for an SpCell, the non-fallback DCI formats on the SpCell include same number of CIF bits as the corresponding non-fallback DCI formats on the scheduling cell, and the CIF bits are considered reserved. |
| carrierIndicatorSize-r16 SEQUENCE { · OPTIONAL Cond CIF-PRESENCE since v16.2.0 | |
| carrierIndicatorSizeDCI-1-2-r16 INTEGER (0..3) since v16.2.0 | Configures the number of bits for the field of carrier indicator in PDCCH DCI format 0_2/1_2. The field carrierIndicatorSizeDCI-0-2 refers to DCI format 0_2 and the field carrierIndicatorSizeDCI-1-2 refers to DCI format 1_2, respectively (see TS 38.212 [17], clause 7.3.1 and TS 38.213 [13], clause 10.1). |
| carrierIndicatorSizeDCI-0-2-r16 INTEGER (0..3) since v16.2.0 | Configures the number of bits for the field of carrier indicator in PDCCH DCI format 0_2/1_2. The field carrierIndicatorSizeDCI-0-2 refers to DCI format 0_2 and the field carrierIndicatorSizeDCI-1-2 refers to DCI format 1_2, respectively (see TS 38.212 [17], clause 7.3.1 and TS 38.213 [13], clause 10.1). |
| enableDefaultBeamForCCS-r16 ENUMERATED {enabled} · OPTIONAL Need S since v16.2.0 | This field indicates whether default beam selection for cross-carrier scheduled PDSCH or aperiodic CSI-RS is enabled, see TS 38.214 [19]. If not present, the default beam selection behaviour is not applied, i.e. Rel-15 behaviour is applied. This field can only be configured in the cross-scheduled SCell or SpCell. |
| ccs-BlindDetectionSplit-r17 ENUMERATED {oneSeventh, threeFourteenth, twoSeventh, threeSeventh, oneHalf, fourSeventh, fiveSeventh, spare1} · OPTIONAL Need R since v17.0.0 | Indicates the share of blind detection candidates and non-overlapping CCEs for PDCCH monitoring on an SpCell and an SCell when cross-carrier scheduling is configured from the SCell for the SpCell (see TS 38.213 [13], clause 10.1.1). The network only configures this field when it sets the field other for an SpCell, i.e., when it configures cross-carrier scheduling of the SpCell by a PDCCH on an Scell. |