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Content for  TS 23.402  Word version:  16.0.0

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4.2.3  Roaming Architectures for EPSWord‑p. 25
Reproduction of 3GPP TS 23.402, Figure 4.2.3-1: Roaming Architecture for EPS using S8, S2a- S2b - Home Routed
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Reproduction of 3GPP TS 23.402, Figure 4.2.3-2: Roaming Architecture for EPS using PMIP-based S8, S2a, S2b (Chained PMIP-based S8-S2a/b) - Home Routed
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** Chained S2a/S2b and S8 used when VPLMN has business relationship with Non-3GPP Networks and S GW in VPLMN includes local non-3GPP Anchor.
The following are some additional considerations in this case:
  • Gxc is used only in the case of PMIP-based S8 and for 3GPP access.
  • Gxc is not required for Trusted Non-3GPP IP Access; Gxa is used instead to signal the QoS policy and event reporting.
Reproduction of 3GPP TS 23.402, Figure 4.2.3-3: Roaming Architecture for EPS using S8 - S2c - Home Routed
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Reproduction of 3GPP TS 23.402, Figure 4.2.3-4: Roaming Architecture for EPS using S5, S2a, S2b - Local Breakout
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Reproduction of 3GPP TS 23.402, Figure 4.2.3-5: Roaming Architecture for EPS using S5, S2c - Local Breakout
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