Page 444 - 5G Basics - Core Network Aspects

1 Core network aspects

1 Scope
This Recommendation describes the service features, service architecture and capability requirements for
using the legacy PSTN or ISDN as a fixed access network for mobile network users (PAM service) and provides
an example of the implementation of the PAM service.
Mechanisms to support the basic voice and video telephony services are described.

The mobile networks discussed in this Recommendation refer specifically to GSM/UTRAN [ITU-T Q.1741]
networks and ANSI-41/cdma2000 [ITU-T Q.1742] networks.

2 References

The following ITU-T Recommendations and other references contain provisions which, through reference in
this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated
were valid. All Recommendations and other references are subject to revision; users of this Recommendation
are therefore encouraged to investigate the possibility of applying the most recent edition of the
Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is
regularly published. The reference to a document within this Recommendation does not give it, as a stand-
alone document, the status of a Recommendation.
[ITU-T Q.1224] ITU-T Recommendation Q.1224 (1997), Distributed functional plane for intelligent
network Capability Set 2.
[ITU-T Q.1701] ITU-T Recommendation Q.1701 (1999), Framework for IMT-2000 networks.
[ITU-T Q.1702] ITU-T Recommendation Q.1702 (2002), Long-term vision of network aspects for
systems beyond IMT-2000.
[ITU-T Q.1711] ITU-T Recommendation Q.1711 (1999), Network functional model for IMT-2000.
[ITU-T Q.1741] ITU-T Recommendations Q.1741-series:
– Q.1741.1 (2002), IMT-2000 references to release 1999 of GSM evolved UMTS core
network with UTRAN access network.
– Q.1741.2 (2002), IMT-2000 references to release 4 of GSM evolved UMTS core
network with UTRAN access network.
– Q.1741.3 (2003), IMT-2000 references to release 5 of GSM evolved UMTS core
network.
– Q.1741.4 (2005), IMT-2000 references to release 6 of GSM evolved UMTS core
network.

[ITU-T Q.1742] ITU-T Recommendations Q.1742-series:
– Q.1742.1 (2002), IMT-2000 references to ANSI-41 evolved core network with
cdma2000 access network.
– Q.1742.2 (2003), IMT-2000 references (approved as of 11 July 2002) to ANSI-41
evolved core network with cdma2000 access network.

– Q.1742.3 (2004), IMT-2000 references (approved as of 30 June 2003) to ANSI-41
evolved core network with cdma2000 access network.
– Q.1742.4 (2005), IMT-2000 references (approved as of 30 June 2004) to ANSI-41
evolved core network with cdma2000 access network.
– Q.1742.5 (2006), IMT-2000 references (approved as of 31 December 2005) to ANSI-
41 evolved core network with cdma2000 access network.
– Q.1742.6 (2007), IMT-2000 references (approved as of 31 December 2006) to ANSI-
41 evolved core network with cdma2000 access network.
[ITU-T Q.1761] ITU-T Recommendation Q.1761 (2004), Principles and requirements for convergence
of fixed and existing IMT-2000 systems.

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