TCI-State
TCI-State is an RRC information element of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.
Definition
The IE TCI-State associates one or two DL reference signals with a corresponding quasi-colocation (QCL) type.
TCI-State ::= SEQUENCE {
tci-StateId TCI-StateId,
qcl-Type1 QCL-Info,
qcl-Type2 QCL-Info OPTIONAL, -- Need R
...,
[[
additionalPCI-r17 AdditionalPCIIndex-r17 OPTIONAL, -- Need R
pathlossReferenceRS-Id-r17 PathlossReferenceRS-Id-r17 OPTIONAL, -- Cond JointTCI1
ul-powerControl-r17 Uplink-powerControlId-r17 OPTIONAL -- Cond JointTCI
]],
[[
tag-Id-ptr-r18 ENUMERATED {n0,n1} OPTIONAL -- Cond 2TA
]],
[[
pathlossOffset-r19 ENUMERATED {
dB-12, dB-8, dB-4, dB0, dB4, dB8,
dB12, dB16, dB20, dB24, dB28, dB32, dB36,
dB40, dB44, dB48, dB52, dB56, dB60} OPTIONAL -- Cond JointTCI
]]
}Candidate change requests of v19.1.0
The CRs whose title or cover names this change, strong and likely matches only.
- CR 5503 r4 (likely): Miscellaneous corrections on RRC for Rel-19 LP-WUS WUR
Fields (8)
| Field | Description |
|---|---|
| tci-StateId TCI-StateId | ID number of the TCI state. |
| qcl-Type1 QCL-Info | QCL information for the TCI state as specified in TS 38.214 [19] clause 5.1.5. |
| qcl-Type2 QCL-Info · OPTIONAL Need R | QCL information for the TCI state as specified in TS 38.214 [19] clause 5.1.5. |
| additionalPCI-r17 AdditionalPCIIndex-r17 · OPTIONAL Need R since v17.1.0 | Indicates the physical cell IDs (PCI) of the SSBs when referenceSignal is configured as SSB for both QCL-Type1 and QCL-Type2. In case the c ell is present, the additionalPCI refers to a PCI value configured in the list configured using additionalPCI-ToAddModList in the serving cell indicated by the field c ell . Otherwise, it refers to a PCI value configured in a list additionalPCI-ToAddModList configured in the serving cell where the TCI-State is applied by the UE. When this field is present the cell for qcl-Type1 and qcl-Type2 is configured with same value, if present. |
| pathlossReferenceRS-Id-r17 PathlossReferenceRS-Id-r17 · OPTIONAL Cond JointTCI1 since v17.1.0 | The ID of the reference signal (e.g. a CSI-RS or an SS block) used for PUSCH, PUCCH and SRS path loss estimation. This field refers to an element in the list configured using pathlossReferenceRSToAddModList in the serving cell and UL BWP where the TCI State is applied by the UE. |
| ul-powerControl-r17 Uplink-powerControlId-r17 · OPTIONAL Cond JointTCI since v17.1.0 | |
| tag-Id-ptr-r18 ENUMERATED {n0,n1} · OPTIONAL Cond 2TA since v18.0.0 | It indicates the TAG that is associated with this TCI state, value n0 means the TCI state associate with the TAG indicated by tag-Id , value n1 means this TCI state associated with the TAG indicated by tag2-Id . The tag-Id-ptr refers to the TAG of the serving cell where the TCI state is applied. |
| pathlossOffset-r19 ENUMERATED { dB-12, dB-8, dB-4, dB0, dB4, dB8, dB12, dB16, dB20, dB24, dB28, dB32, dB36, dB40, dB44, dB48, dB52, dB56, dB60} · OPTIONAL Cond JointTCI since v19.0.0 | Indicates the pathloss offset applied to the TCI state of an UL TRP (see TS 38.213 [13], clause 7). Value dB-12 corresponds to -12 dB, dB-8 corresponds to -8 dB and so on. |