10.1.72 Context State Change Request +CCSTATEREQ

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

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

Table 10.1.72-1: +CCSTATEREQ parameter command syntax

Command	Possible Response(s)
+CCSTATEREQ=<state>[,<cid>[,<cid>[,…]]]	+CME ERROR: <err>
+CCSTATEREQ?	[+CCSTATEREQ: <cid>,<state>] [<CR><LF>+CCSTATEREQ: <cid>,<state> […]]
+CCSTATEREQ=?	+CCSTATEREQ: (list of supported <state>s)

Description

The execution command is used to activate the specified PDP context(s) or to request for the specified QoS flow. The command is also used to deactivate the context or to delete the QoS flow. The command returns with the response depending upon whether the request is successfully sent to the lower layers or not.

The actual result for the PDU session establishment from the network will be displayed through the unsolicited result code +CCSTATEREQU: <result>, <cid> once the indication is received from the network.

The request for a specific QoS flow will be answered by the network by a PDU session establishment accept message or a PDU session modification command message. This PDU establishment procedure may require several sessions of request-response of EAP authentication messages between the MT and the network to complete the procedure (see the +C5GPDUAUTHR and +C5GPDUAUTHS commands), see 3GPP TS 24.501 [161] clause 6.3.1.

For EPS, if an attempt is made to disconnect the last PDN connection, then the MT responds with ERROR or, if extended error responses are enabled, a +CME ERROR.

For EPS, the activation request for an EPS bearer resource will be answered by the network by either an EPS dedicated bearer activation or EPS bearer modification request. The request must be accepted by the MT before the PDP context can be set in to established state.

If the MT is not PS attached when the request for QoS flow command is executed, the MT first performs a PS attach and then attempts to activate the context or request the specific QoS flow.

If no <cid>s are specified, the activation form of the command activates all defined non-emergency contexts.

If no <cid>s are specified, the deactivation form of the command deactivates all active contexts.

The read command returns the current activation states for all the defined PDP contexts. The state displayed for each context is the previous state until the next state is completely accespted by the MT.

The test command is used for requesting information on the supported PDP context activation states.

Defined values

<cid>: integer type; specifies a particular QoS flow definition (see the +CGDCONT and +CGDSCONT commands).

<state>: integer type; indicates the state of PDP context activation.

0 deactivated

1 activated

<result>: integer type; indicates the final result for PDU session establishment procedure.

0 Successfully established.

1 Failed to establish.

Implementation

Optional.