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Content for  TS 23.402  Word version:  16.0.0

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4.2.2  Non-roaming Architectures for EPS

The following considerations apply to interfaces where they occur in figures in this and the next clause:
  • S5, S2a and S2b can be GTP-based or PMIP-based.
  • Gxc is used only in the case of PMIP variant of S5 or S8.
  • Gxa is used when the Trusted non-3GPP Access network is owned by the same operator.
  • Gxb is used only in the case of PMIP variant of S2b.
  • S9 is used instead of Gxa to the Trusted non-3GPP Access network not owned by the same operator.
  • Gxa or S9 are terminated in the Trusted non-3GPP Accesses if supported.
  • S2c is used only for DSMIPv6 bootstrapping and DSMIPv6 De-Registration (Binding Update with Lifetime equals zero) when the UE is connected via 3GPP access. Dashed lines are used in Figure 4.2.2-2, Figure 4.2.3-3 and Figure 4.2.3-5 to indicate this case.
Reproduction of 3GPP TS 23.402, Figure 4.2.2-1: Non-Roaming Architecture within EPS using S5, S2a, S2b
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Reproduction of 3GPP TS 23.402, Figure 4.2.2-2: Non-Roaming Architecture within EPS using S5, S2c
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