10.1.30 Signalling connection status +CSCON

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

Table 10.1.30-1: +CSCON parameter command syntax

Command	Possible response(s)
+CSCON=[<n>]	+CME ERROR: <err>
+CSCON?	+CSCON: <n>,<mode>[,<state>[,<access>]] [<CR><LF>+CSCON: <n>,<mode>[,<state>[,<access>[,<coreNetwork>]]] […]] +CME ERROR: <err>
+CSCON=?	+CSCON: (list of supported <n>s)

Description

The set command controls the presentation of an unsolicited result code +CSCON. If <n>=1, +CSCON: <mode> is sent from the MT when the connection mode of the MT is changed. If <n>=2 and there is a state within the current mode, +CSCON: <mode>[,<state>] is sent from the MT when the connection mode or state information of the MT is changed. If <n>=3, +CSCON: <mode>[,<state>[,<access>]] is sent from the MT when the connection mode, state or access information of the MT is changed. If <n>=4, +CSCON: <mode>[,<state>[,<access>[,<coreNetwork>]]] is sent from the MT. If setting fails, an MT error, +CME ERROR: <err> is returned. Refer clause 9.2 for possible <err> values.

When the MT is in UTRAN, E-UTRAN or NG-RAN, the <mode> refers to idle when no PS signalling connection between UE and network is setup and to connected mode when a PS signalling connection between UE and network is setup. When the UE is in GERAN, the mode refers to idle when the MT is in either the IDLE state or the STANDBY state and to connected mode when the MT is in READY state.

The <state> indicates the state of the MT when the MT is in GERAN, UTRAN connected mode, E-UTRAN or NG-RAN.

The <access> indicates the current radio access type of the MT when the MT is in GERAN, UTRAN, E-UTRAN or NG-RAN.

The <coreNetwork> indicates the core network type the MT is connected to when the MT is in E-UTRAN or NG-RAN.

The read command returns the status of result code presentation and an integer <mode> which shows whether the MT is currently in idle mode or connected mode. State information <state> is returned only when <n>=2. Radio access type information <access> is returned only when <n>=3. Core network type information <coreNetwork> is returned only when <n>=4.For Multi-RAT Dual Connectivity (MR-DC) architecture (see 3GPP TS 37.340 [162]), information is presented for the master RAT followed by optionally, information for each of the secondary RATs on a separate line.

Test command returns supported values as a compound value.

Defined values

<n>: integer type

0 disable unsolicited result code

1 enable unsolicited result code +CSCON: <mode>

2 enable unsolicited result code +CSCON: <mode>[,<state>]

3 enable unsolicited result code +CSCON: <mode>[,<state>[,<access>]]

4 enable unsolicited result code +CSCON: <mode>[,<state>[,<access>[,<coreNetwork>]]]

<mode>: integer type; indicates the signalling connection status

0 idle

1 connected

<state>: integer type; indicates the CS or PS state while in GERAN and the RRC state information if the MT is in connected mode while in UTRAN, E-UTRAN and NG-RAN.

0 UTRAN URA_PCH state

1 UTRAN Cell_PCH state

2 UTRAN Cell_FACH state

3 UTRAN Cell_DCH state

4 GERAN CS connected state

5 GERAN PS connected state

6 GERAN CS and PS connected state

7 E-UTRAN connected state

8 NG-RAN connected state

9 NG-RAN inactive state (see 3GPP TS 38.331 [160]).

<access>: integer type; indicates the current radio access type.

0 Indicates usage of radio access of type GERAN, see 3GPP TS 45.001 [146].

1 Indicates usage of radio access of type UTRAN TDD, see 3GPP TS 25.212 [144].

2 Indicates usage of radio access of type UTRAN FDD, see 3GPP TS 25.212 [144].

3 Indicates usage of radio access of type E-UTRA TDD, see 3GPP TS 36.300 [145].

4 Indicates usage of radio access of type E-UTRA FDD, see 3GPP TS 36.300 [145].

5 Indicates usage of radio access of type NR, see 3GPP TS 38.300 [159].

<coreNetwork>: integer type; indicates the core network type the UE is connected to.

0 Indicates MT is connected to EPC, see 3GPP TS 23.401 [82].

1 Indicates MT is connected to 5GCN, see 3GPP TS 23.501 [165].

Implementation

Optional.