Common IMS Management

CIMS-080020

3GPP/3GPP2 Common IMS WorkshopPuerto Vallarta, Mexico, 24-25 January 2008

Source: 3GPP2Document for: DiscussionAgenda Item: 4.4

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3GPP and 3GPP2 IMS Management Harmonization

• The management of 3GPP and 3GPP2-based IMS networks are harmonized at two levels:– Interfaces

– Models and Network Element Specific Data

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Interfaces

• The 3GPP SA5 32-series of specifications are reused in 3GPP2 TSG-S WG5 and 3GPP2 TSG-X WG3 (charging) specifications, whenever appropriate.

• The concepts of Integration Reference Points (IRPs) and Itf-N interfaces are shared between 3GPP and 3GPP2. – Typically, this means that the management interfaces are common between

3GPP and 3GPP2 (e.g., common alarm interfaces, common provisioning interfaces, common performance management interfaces, common charging interfaces, etc.)

– but the network element specific information are not common (e.g., different Network Resource Models (NRMs), different performance measurements, different Call Detail Records (CDRs), etc.).

• For non-charging management interfaces, the 3GPP2 S.S0028-001-C (and 3GPP2 S.S0028-001-D) specifications describe any additions or exclusions from the 3GPP SA5 Release 6 (and Release 7) specifications.

• For charging, the additions or exclusions are described in the 3GPP2 X.S0013-007-A and 3GPP2 X.S0013-008-A specifications

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Models and Network Element Specific Data

• For IMS models and network element specific data, much of the data is common between 3GPP and 3GPP2 when there is commonality between the 3GPP and 3GPP2 architectures. – As an example, 3GPP SA5 and 3GPP2 TSG-S WG5 share a common

underlying object model (called the Generic NRM, 3GPP R7 32.622) that all object models are built upon.

• In Release 7, 3GPP and 3GPP2 will also share common IMS object model specifications (3GPP R7 32.731, 32.732, 32.733 and 32.735).

• These specifications (and the corresponding 3GPP2 specifications), will specify both 3GPP and 3GPP2 shared objects and 3GPP or 3GPP2-specific objects (where there are architecture differences, such as unique interfaces between IMS and the 3GPP and 3GPP2 Radio Access Networks).

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Management Issues With Moving Toward Common IMS

• The management issues with moving toward the 3GPP and 3GPP2-based Common IMS networks are relative to:– Architecture Specifications– Management Specifications

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Architecture Specifications

• 3GPP architecture needs to clearly designate Common IMS network elements and reference points between Common IMS network elements:– Reference points between Common IMS network elements

and 3GPP-specific networks or 3GPP2-specific networks need to be the responsibility of other 3GPP / 3GPP2 specifications (or clearly designated as not part of Common IMS)

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Management Specifications

• 3GPP SA5 needs to separate Common IMS performance measurements for interfaces between Common IMS network elements from those on interfaces to non-Common IMS network elements:– Similarly, 3GPP 32.72X series should only reflect Common

IMS models and not interfaces between Common IMS network elements and other 3GPP networks (or clearly designate these other modeled interfaces as 3GPP-specific)

– 3GPP2 TSG-S WG5 will be responsible for modeling interfaces between Common IMS network elements and other 3GPP2 networks, 3GPP SA5 for interfaces to other 3GPP networks.

– Similar comments with Common IMS call trace