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Content for  TS 23.041  Word version:  18.4.0

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9.1.4 UMTS Protocol Overview  9.1.5 E-UTRAN Protocol Overview  9.1.6 NG-RAN Protocol Overview 
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9.1.4  UMTS Protocol Overview |R8|  p. 36

Reproduction of 3GPP TS 23.041, Fig. 5:
Figure 5
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9.1.5  E-UTRAN Protocol Overview |R8|  p. 37

Reproduction of 3GPP TS 23.041, Fig. 9.1.5-1: CBC - eNodeB
Figure 9.1.5-1: CBC - eNodeB
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Legend:
  • SBc Application Protocol (SBc-AP): Application Layer Protocol between CBC and MME. This protocol supports transfer of warning messages.
  • S1 Application Protocol (S1-AP): Application Layer Protocol between the eNodeB and the MME.
  • SCTP for the control plane (SCTP): This protocol guarantees delivery of signalling messages between MME and eNodeB (S1). SCTP is defined in RFC 4960.

9.1.6  NG-RAN Protocol Overview |R15|  p. 37

Reproduction of 3GPP TS 23.041, Fig. 9.1.6-1: CBCF - NG-RAN
Figure 9.1.6-1: CBCF - NG-RAN
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Legend:
  • NG application protocol information for cell broadcast (NG-AP-CB): Subset of NG-AP information that the AMF relays between the AN and the CBCF. NG-AP-CB corresponds to a subset of NG-AP defined in TS 38.413.
  • NG application protocol (NGAP): Application layer protocol between the NG-RAN node and the AMF. The NGAP protocol is defined in TS 38.413.
  • SCTP for the control plane (SCTP): This protocol guarantees delivery of signalling messages between AMF and NG-RAN (N2). SCTP is defined in RFC 4960.
  • HTTP/2: Application layer protocol for Service based interface between AMF and CBCF. HTTP/2 is defined in RFC 9113.
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