7 Functions common to all configurations of a MS supporting Packet Switched Services

27.0603GPPMobile Station (MS) supporting Packet Switched servicesPacket domainRelease 17TS

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

7.1 Mobile Station Modes of Operation

Three MS modes of operation are identified for A/Gb mode: Class A, B, and C. These modes of operation are described in 3GPP TS 23.060.

Three MS modes of operation are supported for Iu mode: A PS/CS mode of operation corresponds to class-A mode of operation in A/Gb mode. A PS mode of operation corresponds to class-C mode of operation in A/Gb mode. A CS mode of operation is out of scope in the present document.

7.2 Physical Interface

The physical interface between the TE and the MT may conform to ITU-T V.24/V.28, or to IrDA IrPHY physical standard specification, or to PCMCIA PC-Card electrical specification. All signal levels and their operation shall be as specified in 3GPP TS 27.001, 27.002, and 27.003.

7.3 Terminal context procedures

This subclause describes the relationships for PS Attach and Detach, and PDP Context Activation, Modification and Deactivation. The procedures for these functions are described in 3GPP TS 23.060.

7.3.1 PS Attach

The PS Attach shall be performed prior to activating a PDP context. The PS Attach may be performed automatically or manually depending on the manufacturer’s implementation and configuration.

7.3.2 PS Detach

The PS Detach may be performed automatically or manually depending on the manufacturer’s implementation and configuration. The following cases are valid:

– if the connection between the TE and MT is broken then the MT may perform the PS Detach procedure;

– if the network originates a PS Detach the MT may inform the TE;

– if the radio connection is broken then the MT may inform the TE;

– if the TE deactivates the last PDP context then the MT may perform the PS Detach procedure.

7.3.3 MS Originated PDP Context Activation

The PDP Context Activation procedure may be performed automatically or manually depending on the manufacturer’s implementation and configuration. Depending on the manufacturer’s implementation and configuration, 0, 1, or more PDP contexts can be active simultaneously.

7.3.4 MS Originated Secondary PDP Context Activation

The Secondary PDP Context Activation procedure may be performed automatically or manually depending on the manufacturer’s implementation and configuration. Depending on the manufacturer’s implementation and configuration, 0, 1, or more PDP contexts can be active simultaneously for the same PDP address.

7.3.5 Network Requested PDP Context Activation.

The network can request a PS attached MS to activate a specific PDP context.

7.3.6 MS-Initiated PDP Context Modification

The MS-Initiated PDP Context Modification procedure may be performed automatically or manually depending on the manufacturer’s implementation and configuration.

7.3.7 PDP Context Deactivation

The PDP Deactivation may be performed automatically or manually depending on the manufacturer’s implementation and configuration. The following cases are valid:

– if the connection between the MT and the TE is broken then the MT may perform the PDP Context Deactivation procedure;

– if the radio connection is broken then the MT may inform the TE;

– if the DHCP lease expires or the renewal is rejected by the DHCP server or the IP Address is changed during DHCP lease renewal, the TE may deactivate the PDP context.

– if the TE deactivates the last PDP context then the MT may perform the PS Detach procedure.

7.3.8 PDP context related parameters

7.3.8.1 MS in A/Gb mode

It shall be possible to enquire and/or set the following parameters:

– requested quality of service;

– traffic flow template;

– compression on or off;

– TCP/IP header compression on or off;

– PDP address;

– PDP type;

– Access Point Name (APN);

– protocol configuration options (if required by the PDP type).

7.3.8.2 MS in Iu mode