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Content for  TR 32.828  Word version:  10.0.0

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0  IntroductionWord‑p. 7

3GPP WG SA5 has specified detailed Network Resource Models (NRMs) for the management of mobile networks, including a Generic NRM.
TMF has done the same for the management of various kinds of fixed networks, as well as a Shared Information Data (SID) model providing common and generic definitions for network and service management aspects.
Both sets of specifications have been developed independently. As a consequence the models are different.
Though there will always be a part in the NRMs and SID which are different due to the different network technologies modelled, there are numerous modelling aspects which do not have to be different between the two models for the different network technologies.
Examples of these aspects are the top part of the NRMs and SID, modelling of resource inventory information, modelling of security aspects, modelling techniques and how vendor specific resource model extensions are managed using NRMs and SID.
Because both sets of specifications have been developed independently, the management of the mobile part and the fixed part is currently structured along silos with different management interfaces, resource models, management architectures, and management workflows.
Aligned management interfaces, management models, management architectures, and management workflows would greatly benefit the industry. Advantages include:
  • CAPEX reduction (less development cost, less integration cost);
  • OPEX reduction (configuration and re-configuration of mobile and fixed networks can be handled in the same manner and with the same work flows);
  • Enhanced management capabilities (e. g. consistent management of dependant configurations for mobile part and fixed part aspects).

1  ScopeWord‑p. 8

The present document studies how to allow the two organizations (3GPP and TMF) to evolve their respective NRMs and SID in a manner that they would become aligned to support consistent and integrated management of mobile and fixed networks. This study:
  • identifies the non-aligned, contradicting or overlapping parts between NRMs and SID
  • identifies the non-aligned, contradicting or overlapping parts regarding specification methodology
  • proposes possibilities to align the parts identified above;
  • ensures that the proposal allows usage of the 3GPP Generic NRM IRP independently of SID
  • ensures that the proposal allows usage of mobile specific NRMs to be used as they are
  • drives the alignment process with TMF
  • identifies any required changes in the 3GPP specifications
  • identifies required changes in the TMF specifications to be communicated to the TMF
  • ensures that 3GPP remains full owner of the aligned part of the NRM specifications
  • defines a procedure how aligned specifications can be maintained and updated in a consistent manner
Special emphasis has been given to the borderline between generic and harmonized part and the network technology specific parts of the models. In case new requirements had been identified during the alignment process, they have been taken into account as well.
It is not intended to add the mobile specific parts of the 3GPP Network Resource Models to the TMF SID.
These model aspects are published by 3GPP only. Interface aspects (e. g. the Alarm IRP) are outside of the scope of this Study.

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