9.2.79 CSI Report

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

This IE provides CSI reports of UEs served by the cell for which the information is provided.

IE/Group Name

Presence

Range

IE type and reference

Semantics description

CSI Report per Cell

1 .. <maxUEReport>

>UE ID

M

BIT STRING (SIZE(16))

ID assigned by eNB2 for the UE.

>CSI Report per CSI Process

1 .. <maxCSIProcess>

>>CSI Process Configuration Index

M

INTEGER (1..7, …)

Indicates one of the possible CSI Process configurations in the serving cell.

>>CSI Report per CSI Process Item

1..

<maxCSIReport>

>>>RI

M

INTEGER (1..8, …)

The RI corresponding to the CQI being reported for this CSI process item. Value defined in TS 36.213 [11].

>>>Wideband CQI

M

9.2.80

>>>Subband Size

M

ENUMERATED (2, 3, 4, 6, 8, …)

Corresponds to a value of subband size k defined in TS 36.213 [11] for the system bandwidth.

>>>Subband CQI List

0 .. <maxSubband>

>>>>Subband CQI

M

9.2.81

>>>>Subband Index

M

INTEGER (0..27, …)

Range bound

Explanation

maxUEReport

Maximum number of UE. Value is 128.

maxCSIProcess

Maximum number of CSI processes per UE. The value is 4.

maxCSIReport

Maximum number of CSI Reports per CSI Process. The value is 2.

maxSubband

Maximum number of subbands. The value is 14.