Page 493 - 5G Basics - Core Network Aspects

Core network aspects 1

Table 21 – Mobility location query response (MLM-FE(P) → MLM-FE(C))

Information element Explanation

Mobility service subscriber identifier The identifier of the subscriber for which the mobility service is to be
provided.
Persistent IP address information A set of IP address information used for locating the mobile UE.
– Unique IP address The persistent IP address allocated to the attached mobile UE.

– Address realm The addressing domain in which the IP address is significant.
Temporary IP address information A set of IP address information used for locating the access network to
which the UE is attached.
– Unique IP address The temporary IP address allocated to the attached mobile UE.
– Address realm The addressing domain in which the IP address is significant.

6.5.10 Reference point M10 between MLM-FE(P) and HDC-FE

This information flow is used to carry handover indications from the MLM-FE(P) to the HDC-FE and responses
from the HDC-FE to the MLM-FE(P) when handover execution is complete in the host-based mobility case.
Reference point M10 supports the "handover indication" primitive (Table 22) for this purpose.

Table 22 – Handover indication (MLM-FE → HDC-FE)

Information element Explanation
Transport subscriber identifier The user/UE identifier authenticated for attachment.
(optional) (Note 1)
Mobility service subscriber identifier The user/UE identifier authenticated for mobility services. This will be the
same as the transport subscriber identifier in the integrated scenario.
Persistent IP address information A set of IP address information used for locating the mobile UE.

– Unique IP address The persistent IP address allocated to the attached mobile UE.
– Address realm The addressing domain in which the IP address is significant.
Temporary IP address information A set of IP address information used for locating the UE within the
(conditionally mandatory) (Note 2) network to which the UE is attached.
– Unique IP address The temporary IP address allocated to the attached mobile UE.

– Address realm The addressing domain in which the IP address is significant.
RACF contact point (optional) (Note 3) The FQDN or IP address of the RACF entity where resource requests shall
be sent (i.e., PD-FE address).
Upper tunnel end point (optional) Address of the upper tunnel end point.
(Notes 3 and 4)
Mobility service parameters Details are for further study.

NOTE 1 – UE identifier is required if either persistent or temporary address is private.
NOTE 2 – Required always for host-based case, and required in network-based case only when L3HEF in EN-FE is unable to
allocate that address.
NOTE 3 – Provided only if supplied by the TLM-FE (see Tables 1 and 2).
NOTE 4 – Not required if available by local means.

6.5.11 Reference point M11 between HDC-FE and NID-FE

This information flow is used by the HDC-FE to query neighbouring network information from the NID-FE in
the case where the HDC-FE makes the handover decision.

Reference point M11 supports two primitives:

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