8.77 Reading coverage enhancement status +CRCES

27.0073GPPAT command set for User Equipment (UE)Release 18TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

Table 8.77-1: +CRCES action command syntax

Command	Possible Response(s)
+CRCES	+CRCES: <AcT>,<CE_level>,<CC>
+CRCES=?

Description

This command returns the coverage enhancement status of the MT. The terminal can consider the coverage enhancement status prior to deciding to transmit data (see e.g. clause 10.1.43). Depending on the coverage enhancement status the terminal can refrain from transmitting data.

The coverage enhancement status is only provided by the MT if the access technology (mode) of the serving cell is E-UTRAN (WB-S1 mode), EC-GSM-IoT, E-UTRAN (NB-S1 mode), E-UTRAN connected to a 5G CN (NB-N1 mode or WB-N1 mode). If the access technology (mode) of the serving cell is different, <Act>=0 is indicated.

Defined values

<AcT>: integer type; access technology (mode) of the serving cell.

0 Serving cell has no coverage enhancement

1 E-UTRAN (WB-S1 mode or WB-N1 mode)

2 EC-GSM-IoT (A/Gb mode) (see NOTE 1)

3 E-UTRAN (NB-S1 mode or NB-N1 mode) (see NOTE 2)

NOTE 1: 3GPP TS 44.018 [156] specifies the EC-SCH INFORMATION message which, if present, indicates that the serving cell supports EC-GSM-IoT.

NOTE 2: 3GPP TS 36.331 [86] specifies the System Information blocks which give the information about whether the serving cell supports NB-IoT, which corresponds to E-UTRAN (NB-S1 mode) or E-UTRAN (NB-N1 mode).

<CE_level>: integer type; Coverage Enhancement (CE) level of the MT in the serving cell. Applicable only if <Act>=1 (E-UTRAN (WB-S1 mode or WB-N1 mode)) or <Act>=3 (E-UTRAN (NB-S1 mode or NB-N1 mode)). The Coverage Enhancement levels are defined and specified in 3GPP TS 36.331 [86].

0 Coverage Enhancement not used by the MT in the serving cell

1 Coverage Enhancement level 0

2 Coverage Enhancement level 1

3 Coverage Enhancement level 2

4 Coverage Enhancement level 3

<CC>: integer type; Uplink Coverage Class (CC) of the MT in the serving cell. Applicable only if <Act>=2 (EC-GSM-IoT). The Coverage Classes are defined and specified in 3GPP TS 43.064 [13].

0 Coverage Class not used by the MT in the serving cell

1 Coverage Class 1

2 Coverage Class 2

3 Coverage Class 3

4 Coverage Class 4

5 Coverage Class 5

Implementation

Optional.