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LTE Bearer and Session Procedures

This hub groups the LTE procedures that build or modify PDN and EPS bearer context after access and registration.

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This category covers LTE procedures that establish or modify PDN connectivity and bearer context.

Common nodes are the UE, MME, SGW, PGW, and eNB.

These procedures matter because packet service and QoS behavior depend on them.

Procedures that create the first usable PDN and bearer path in EPS.

LTE Default EPS Bearer Establishment — Establishes the first default bearer toward the UE.
LTE APN / PDN Connectivity Setup Flow — Creates APN and PDN session context for service delivery.

Procedures that add dedicated bearer handling after the default path is active.

LTE Dedicated EPS Bearer Establishment — Adds a dedicated bearer for additional QoS handling.
LTE Dedicated Bearer Setup for VoLTE — Voice-oriented dedicated bearer setup path.

Procedures that modify existing bearer parameters and service behavior.

LTE Bearer Modification Procedure — Modifies bearer behavior and related session parameters.
LTE E-RAB Modify Procedure — Updates E-RAB handling on the radio-access side.

Procedures that release bearer resources and clear related service state.

LTE Bearer Release Procedure — Releases bearer resources and related session context.
LTE E-RAB Release Procedure — Releases E-RAB resources toward the radio side.

Procedures that control the E-RAB layer on the access side.

LTE E-RAB Setup Procedure — Builds the radio-access bearer side of service delivery.
LTE E-RAB Modify Procedure — Updates E-RAB handling after setup.
LTE E-RAB Release Procedure — Releases E-RAB resources when service no longer needs them.