[−][src]Module ublox_cellular::command::psn
18 - Packet Switched Data Services Commands
A PDP context can be either primary or secondary. In LTE, PS data connections are referred to as EPS bearers: EPS bearers are conceptually equivalent to the legacy PDP contexts, which are often referred to for sake of simplicity. Similarly to a PDP context, the EPS bearer can be a default (primary) or dedicated (secondary) one. The initial EPS bearer established during LTE attach procedure is actually a default EPS bearer. A secondary PDP context uses the same IP address of a primary PDP context (the usual PDP context activated e.g. via dial-up). The Traffic Flow Filters for such secondary contexts shall be specified according to 3GPP TS 23.060
The typical usage of the secondary PDP contexts is in VoIP calls, where RTP (speech) packets are conveyed on one PDP context (e.g. the primary one) with a given QoS (e.g. low reliability) whereas SIP signalling is routed on a different PDP context (e.g. the secondary one, with the same IP address but different port numbers) with a more reliable QoS.
A Traffic Flow Template (i.e. a filter based on port number, specifying relative flow precedence) shall be configured for the secondary context to instruct the GGSN to route down-link packets onto different QoS flows towards the TE.
Modules
| responses | Responses for Packet Switched Data Services Commands |
| types | |
| urc | Unsolicited responses for Packet Switched Data Services Commands |
Structs
| GetEPSNetworkRegistrationStatus | |
| GetExtendedPSNetworkRegistrationStatus | |
| GetGPRSAttached | 18.14 Read GPRS attach or detach +CGATT |
| GetGPRSNetworkRegistrationStatus | |
| GetPDPContextState | 18.14 Read PDP context state +CGACT |
| GetPacketSwitchedConfig | 18.7 Get Packet switched data configuration +UPSD |
| GetPacketSwitchedNetworkData | 18.9 Get Packet switched network-assigned data +UPSND |
| SetAuthParameters | 18.39 Configure the authentication parameters of a PDP/EPS bearer +UAUTHREQ |
| SetEPSNetworkRegistrationStatus | 18.36 EPS network registration status +CEREG |
| SetExtendedPSNetworkRegistrationStatus | 18.28 Extended Packet Switched network registration status +UREG |
| SetGPRSAttached | 18.14 Set GPRS attach or detach +CGATT |
| SetGPRSNetworkRegistrationStatus | 18.27 GPRS network registration status +CGREG |
| SetPDPContextDefinition | 18.4 PDP context definition +CGDCONT |
| SetPDPContextState | 18.16 PDP context activate or deactivate +CGACT |
| SetPacketSwitchedAction | 18.8 Set Packet switched data action +UPSDA |
| SetPacketSwitchedConfig | 18.7 Set Packet switched data configuration +UPSD |
| SetPacketSwitchedEventReporting | 18.26 Packet switched event reporting +CGEREP |