Page 520 - 5G Basics - Core Network Aspects

1 Core network aspects

Table III.1 – Mapping from 3GPP to ITU-T Y.2018 entities

ITU-T Y.2018 entity
3GPP entity Functions performed
responsible
Originator of PMIP signalling. Proxy point for PMIP signalling (chained MLM-FE(P)
PMIP)

Lower IP tunnel end point L3HEF
Per-user based packet filtering (by e.g., deep packet inspection) ABG-FE
Lawful interception ABG-FE
UE IP address allocation NACF
DHCPv4 (server and client) and DHCPv6 (client and server) functions NACF
UL and DL service level charging, gating and rate enforcement ABG-FE
Packet data
DL rate enforcement based on AMBR ABG-FE
network (PDN)
gateway Transport level packet marking in the downlink ABG-FE

Terminator of PMIP signalling MLM-FE(C)
Upper tunnel end point L3HEF
Terminator of DSMIPv6 signalling from the UE MLM-FE(P)
collocated with
MLM-FE(C)
* TBD: to be defined.
NOTE 1 – TLM-FE is a candidate.
NOTE 2 – TUP-FE is a candidate.

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