9.2.120 Secondary RAT Usage Report List

36.4233GPPEvolved Universal Terrestrial Radio Access Network (E-UTRAN)Release 17TSX2 Application Protocol (X2AP)

This IE provides information on the NR resources used with EN-DC as specified in TS 37.340 [32].

IE/Group Name

Presence

Range

IE type and reference

Semantics description

Criticality

Assigned Criticality

Secondary RAT usage report Item

1 .. < maxnoofbearers >

EACH

reject

>E-RAB ID

M

9.2.23

>Secondary RAT Type

M

ENUMERATED (nR, …, nR-unlicensed)

>E-RAB Usage Report List

1

>>E-RAB Usage Report Item

1.. <maxnooftimeperiods>

EACH

ignore

>>>Start timestamp

M

OCTET STRING (SIZE(4))

UTC time encoded in the same format as the first four octets of the 64-bit timestamp format as defined in section 6 of IETF RFC 5905 [35]. It indicates the start time of the collecting period of the included Usage Count UL IE and Usage Count DL IE.

>>>End timestamp

M

OCTET STRING (SIZE(4))

UTC time encoded in the same format as the first four octets of the 64-bit timestamp format as defined in section 6 of IETF RFC 5905 [35]. It indicates the end time of the collecting period of the included Usage Count UL IE and Usage Count DL IE.

>>>Usage count UL

M

INTEGER (0..264-1)

The unit is: octets.

>>>Usage count DL

M

INTEGER (0..264-1)

The unit is: octets.

Range bound

Explanation

maxnoofbearers

Maximum no. of E-RABs. Value is 256.

maxnooftimeperiods

Maximum no. of time reporting periods. Value is 2.