A “bearer” is a logical channel for data transmission with specific QoS (Quality of Service) requirements (e.g., latency, bandwidth). Bearer QoS is transferred via GTP tunnels.

Bearer Level Quality of Service (Bearer QoS)¹⁾

Bearer Data:

• Ensures traffic is prioritized based on application needs.
• Managed by the SMF
• Identified by a QFI (QoS Flow Identifier)
• Two types of bearer exist:
  • Dedicated Bearer: Created for specific services (e.g., VoIP, video streaming) required guaranteed QoS.
  • Default Bearer: Established during initial registration for general internet access.

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