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specified from  Rel-15  in
TS 23.501, clause 6.2.9 

TBC


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See it   here

specified from  Rel-6  in
TS 33.220, clause 4.2.2 

A generic BSF and the UE shall mutually authenticate using the AKA protocol, and agree on session keys that are afterwards applied between UE and a NAF. After the bootstrapping has been completed, the UE and a NAF can run some application specific protocol where the authentication of messages will be based on those session keys generated during the mutual authentication between UE and BSF.

See Subscriber Data in the NAF   here.


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See it   here

specified from  Rel-15  in
TS 23.501, clause 6.2.5 

This network function exposes the Nnef service.


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specified from  Rel-15  in
TS 38.300, clause 3.2 

Node providing E-UTRA user plane and control plane protocol terminations towards the UE, and connected via the NG interface to the 5GC.


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defined from  Rel-3
Source:   TS 23.002, clause 4.2.3.1 

A Node B is a logical network component which serves one or more UTRAN cells.


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defined from  Rel-3
Source:   TS 23.002, clause 4a.6.1 

The Number Portability Database (NPDB) is the central element of the IN based solution for Mobile Number Portability (MNP). MNP is the ability for a mobile subscriber to change the GSM subscription network within a portability cluster (e.g. a country) whilst retaining his/her original MSISDN or MSISDNs.

The NPDB stores the table of correspondence between MSISDNs and Subscription networks. Upon request of the (gateway or visited) MSC, the NPDB retrieves from the MSISDN the Routing Number pointing out the Subscription network.


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See it   here

specified from  Rel-15  in
TS 23.501, clause 6.2.6 

This network function exposes the Nnrf service.


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See it   here

specified from  Rel-15  in
TS 23.501, clause 6.2.14 

This network function exposes the Nnssf service.


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specified from  Rel-15  in
TS 23.503, clause 6.2.9 

This network function exposes the Nnwdaf service.



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