EphemerisInfo (EphemerisInfo-r17)

RRC IE · TS 38.331 v19.4.0 (2026-09) · clause 6.3.2

EphemerisInfo-r17 is an RRC information element of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.

First seen v17.0.0 (2022-04) · Not changed since

Definition

The IE EphemerisInfo provides satellite ephemeris. Ephemeris may be expressed either in format of position and velocity state vector in ECEF or in format of orbital parameters in ECI. Note: The ECI and ECEF coincide at epochTime , i.e., x,y,z axis in ECEF are aligned with x,y,z axis in ECI at epochTime .

EphemerisInfo-r17 ::=          CHOICE {
    positionVelocity-r17           PositionVelocity-r17,
    orbital-r17                    Orbital-r17
}

Fields (2)

Used by (4)

• NTN-Config-r17
• NTN-Config-r19
• NTN-NeighbourCellInfo-r18
• NeighbourCellInfo-r17

Uses (2)

• Orbital-r17
• PositionVelocity-r17

In the viewer

• Read EphemerisInfo in v19.4.0
• History of EphemerisInfo-r17 across versions
• All versions of TS 38.331
• ASN.1 index