Page 257 - 5G Basics - Core Network Aspects

Core network aspects 1

10) Improve application performance by utilising available access technologies.

Applications

Multi-connection
application support function

Multi- Service control function
connection
control
function Multi-connection
media function

Transport function

MUE
Signal enhanced
In MC Other Y.2027(12)_F6-1

Figure 6-1 – Overview of multi-connection architecture

Figure 6-2 shows how an MUE and MC-ARCH enhanced network can align with the OSI layering. It also
highlights that MC-ARCH introduces new functions in user equipment and network nodes supporting multi-
connection.

MUE MC-ARCH
OSI L5-7 MC-application (1) MC-application (n) (n)
Technology independent support FE support FE Peer protocol (1)
identifiers: entities MC-application
e.g., multiple SIP Connection-less Connection-oriented support FE
registrations using
IMPU/IMPI RTP SIP FTP

OSI L4 (1) (n)
Technology independent Peer protocol (1) (n)
identifiers: Service control FE Service control FE entities Service control MC-REGISTRATION MC-COORDINATION CONTROL MC-USER PROFILE MC-POLICY CONTROL
e.g., multiple FE
SCTP bindings UDP SCTP TCP

OSI L3 MC-TERMINAL CONTROL MC - Media control
Technology independent (1) (n) (n)
identifiers: Peer protocol (1)
e.g., multiple HoA Access control Access control entities
using DSMIPv6, Access control
PMIPv6, GTP IP(DSMIPv6) IPSec
tunnel, NBIFOM etc.
OSI L1-2
Technology specific (1) (n) (n)
identifiers: Peer protocol (1)
e.g., GSM, UMTS, PDCP/RLC entities
LTE, Wi-Fi, /MAC/RF LLC/MAC/RF Access network
WiMAX etc.
e.g., multiple CoAs
Y.2027(12)_F6-2

Figure 6-2 – Functional entities supporting multi-connection architecture

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