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3GPP Glossaries

 

 

Interfaces / Reference Points

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between  MSC  and  GCR

[R9]+

The GCR is the management data base for the voice group or broadcast calls in the area controlled by the associated MSC(s). Whenever the MSC needs data related to a requested voice group or broadcast call it interrogates the GCR to obtain the respective voice group or broadcast call attributes.

The protocol used to transfer the data over this interface is not standardized.

Source:   TS 23.002, clause 6a.1.1

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between  ICS UE  and  SCC AS

[R9]+

This reference point is used between the ICS UE and the SCC AS for service control signalling over CS access, as defined in TS 23.292.

Source:   TS 23.002, clause 6a.7.29

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between  MSC-S  and  CSCF

[R8]+

This reference point is used to route session control signalling between the MSC Server enhanced for ICS and the home IMS, as defined in TS 23.292 and between the MSC Server supporting MSC Server assisted mid-call feature and the home IMS, as defined in TS 23.237.

Source:   TS 23.002, clause 6a.7.27

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between  MSC-S  and  TAS

[R8]+

This reference point is used between the MSC Server enhanced for ICS and the TAS to interwork CS signalling and communication service setting procedures, as defined in TS 23.292.

Source:   TS 23.002, clause 6a.7.28

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between  E-CSCF  and  EATF

[R9]+

This is the interface between the Emergency CSCF and the EATF in serving network (i.e. EATF as defined in TS 23.167), it is used to provide services for emergency sessions.

Source:   TS 23.002, clause 6a.7.15a

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between  I-CSCF  and  EATF

[R9]+

This is the interface between the Interrogating CSCF and the EATF in serving network (i.e. EATF as defined in TS 23.167), it is used to provide services for emergency sessions.

Source:   TS 23.002, clause 6a.7.15b

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between  IBCF  and  IBCF

[R8]+

This reference point allows two IBCFs to communicate with each other in order to provide the communication and forwarding of signalling messaging between IM CN subsystem networks.

Source:   TS 23.002, clause 6a.7.24

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between  P-CSCF  and  IMS-AGW

[R7]+

This reference point conveys the necessary information that is needed to allocate and release transport addresses.

Details are described in TS 23.228, Annex G

Source:   TS 23.002, clause 6a.7.23

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between  S-CSCF  and  AS

[R5]+

The ISC (IMS Service Control) interface between Serving CSCF and the Application Servers (i.e., SIP Application Server, OSA Service Capability Server, or CAMEL IM-SSF) is used to provide services for the IMS.

Source:   TS 23.002, clause 6a.7.8a

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between  RNC  and  Node B

[R3]+

This interface is used to support the services offered to the UMTS users and subscribers. It also allows control of the radio equipment and radio frequency allocation in the Node B.

This interface is specified in the TS 25.43x-series.

Source:   TS 23.002, clause 6.3.2

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between  MSC  and  RNC / BSC

[R3]+

This interface is used to carry information concerning:
  • RNS management (from Rel-3, for IuCS between MSC and RNC)
  • BSS management (from Rel-5, for IuCS between MSC and BSC)
  • call handling
  • mobility management.
The Iu_CS interface is defined in the TS 25.41x-series.

Source:   TS 23.002, clause 6.2.1.2

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between  HNB  and  HNB-GW

[R9]+

This interface is specified in the TS 25.467, TS 25.468 and TS 25.469.

Source:   TS 23.002, clause 6.3.5

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between  SGSN  and  RNC / BSC

[R3]+

This interface is used to carry information concerning:
  • RNS management (from Rel-3, for IuPS between SGSN and RNC)
  • BSS management (from Rel-5, for IuPS between SGSN and BSC)
  • packet data transmission;
  • mobility management
The Iu_PS interface is defined in the TS 25.41x-series.

Source:   TS 23.002, clause 6.2.2.2

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between  RNC  and  RNC

[R3]+

This interface is defined in the TS 25.42x series.

Source:   TS 23.002, clause 6.3.3

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between  BSS  and  RNS

[R5]+

The Iur-g interface is the logical interface between two BSSs in Iu mode or between an RNS and a BSS in Iu mode or between a BSS in A/Gb mode and a UTRA-NTDD RNS.

Source:   TS 43.130

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between  IBCF  and  TrGW

[R6]+

This reference point is used by the IBCF to control the TrGW, e.g. to request network address translation binding.

Source:   TS 23.002, clause 6a.7.21

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between  TrGW  and  TrGW

[R8]+

This reference point allows two TrGWs to forward media streams between IM CN subsystem networks.

Source:   TS 23.002, clause 6a.7.25

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