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TechSpec
  • Foreword
  • 1 Scope
  • 2 References
  • 3 Definitions
  • 4 Main concepts
  • 5 HSCSD architecture and transmission
    • 5.1 Air interface
    • 5.2 Functions and information flows
      • 5.2 Functions and information flows
      • 5.2.1 Call establishment procedures
      • 5.2.2 Handover procedures
      • 5.2.3 Resource upgrading, downgrading and configuration change (A/Gb mode)
      • 5.2.3a Resource upgrading, downgrading and configuration change (GERAN Iu mode)
      • 5.2.4 User initiated service level up- and downgrading (A/Gb mode)
      • 5.2.4a User initiated service level up- and downgrading (GERAN Iu mode)
      • 5.2.5 Link adaptation for ECSD
      • 5.2.6 Start of ciphering
    • 5.3 Transparent data transmission
    • 5.4 Non-Transparent data transmission
    • 5.5 Interworking
    • 5.6 Subscription aspects and storage of subscriber data
  • 6 Charging

5.6 Subscription aspects and storage of subscriber data

23.0343GPPHigh Speed Circuit Switched Data (HSCSD)Release 17Stage 2TS

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

The HSCSD uses general bearer services defined in 22 series specifications. No HSCSD related subscriber data is stored in HLR or VLR with the exception of the bearer capability allocation (see 3GPP TS 23.008 [16]).