A.5 PLMN interfaces
23.0023GPPNetwork architectureRelease 17TS
A.5.1 Interface between the HLR and the GLR (GLa-interface)
In circuit switched domain, this interface is the same as that between the VLR and the HLR (see TS 29.002 [26]). The HLR regards the GLR as the VLR via this interface. On the other hand, in packet switched domain, this interface is the same as that between the SGSN and the HLR (see TS 29.002 [26]). The HLR regards the GLR as the SGSN via this interface
A.5.2 Interface between the VLR and the GLR (GLb-interface)
This interface is the same as those between the VLR and the HLR (see TS 29.002 [26]). The VLR regards the GLR as the HLR via this interface.
A.5.3 Interface between the SGSN and the GLR (GLc-interface)
This interface is the same as those between the SGSN and the HLR (see TS 29.002 [26]). The SGSN regards the GLR as the HLR via this interface.
A.5.4 Interface between the GLR and the IM_MSC (GLd‑interface)
In the network with the GLR, when the IM_MSC receives a message, it interrogates the GLR for the routing information of the MSC. However, this interface is internal because GLR and IM-MSC are implemented in the same physical node and the protocol on this interface is not specified.
A.5.5 Interface between the GLR and the IM_GSN (GLe‑interface)
In the network with the GLR when the IM_GSN receiving a PDU notification from the GGSN, the IM_GSN relays the notification to the SGSN by interrogating via the interface the routing information to the GLR. The interrogation uses the same operation on the interface between the SGSN and the HLR (see TS 29.002 [26]).
A.5.6 Interface between the SMS-GMSC and the GLR (GLf‑interface)
This interface is used to forward mobile-terminated short messages in the network with the GLR in case of SMS transfer over GPRS. Signalling on this interface uses the Mobile Application Part (MAP) (see TS 29.002 [26]).
The SMS-GMSC regards the GLR as the SGSN via this interface.
A.5.7 Interface between the SMS-GMSC and the IM_MSC (GLg‑interface)
This interface is used to forward short messages in the network with the GLR in case of SMS transfer over non-GPRS. Signalling on this interface uses the Mobile Application Part (MAP) (see TS 29.002 [26]).
The SMS-GMSC regards the IM_MSC as the MSC via this interface.
A.5.8 Interface between the MSC and the IM_MSC (GLh‑interface)
This interface is used to forward short messages in the network with the GLR in case of SMS transfer over non-GPRS. Also this interface is used to exchange data needed by the MSC to perform subscriber authorization and allocate network resources. Signalling on this interface uses the Mobile Application Part (MAP) (see TS 29.002 [26]).
A.5.9 Interface between the GMLC and the IM_MSC (GLi‑interface)
Also this interface is used to exchange data needed by the MSC to perform subscriber authorization and allocate network resources. Signalling on this interface uses the Mobile Application Part (MAP) (see TS 29.002 [26]).
The GMLC regards the IM_MSC as the MSC via this interface.
A.5.10 Interface between the GGSN and the IM_GSN (GLj‑interface)
In the network with the GLR when receiving a PDP PDU from the external network the GGSN sends a notification to the IM_GSN by the routing information from the HLR (see TS 29.060 [51]). The GGSN regards the IM_GSN as the SGSN via this interface.
A.5.11 Interface between the SGSN and the IM_GSN (GLk‑interface)
In the network with the GLR when receiving a PDP notification from the GGSN, the IM_GSN relays the notification to the SGSN by the routing information from the GLR (see TS 29.060 [51]). The SGSN regards the IM_GSN as the GGSN via this interface.
Annex B (informative):
Change history
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Change history |
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Date |
Meeting |
TDoc |
CR |
Rev |
Cat |
Subject/Comment |
New version |
|
2004-12 |
SP-26 |
Created version 6.0.0 |
6.0.0 |
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|
2007-06 |
SP-36 |
– |
– |
– |
Update to Rel-7 version (MCC) |
7.0.0 |
|
|
2008-12 |
SP-42 |
– |
– |
– |
Update to Rel-8 version (MCC) |
8.0.0 |
|
|
2009-12 |
SP-46 |
– |
– |
– |
Update to Rel-9 version (MCC) |
9.0.0 |
|
|
2011-03 |
SP-51 |
– |
– |
– |
– |
Update to Rel-10 version (MCC) |
10.0.0 |
|
2012-09 |
– |
– |
– |
– |
– |
Update to Rel-11 version (MCC) |
11.0.0 |
|
2014-09 |
SP-65 |
– |
– |
– |
– |
Update to Rel-12 version (MCC) |
12.0.0 |
|
2015-12 |
– |
– |
– |
– |
– |
Update to Rel-13 version (MCC) |
13.0.0 |
|
2017-03 |
– |
– |
– |
– |
– |
Update to Rel-14 version (MCC) |
14.0.0 |
|
2018-03 |
SP-79 |
SP-180089 |
0014 |
– |
F |
Correction to the speed encoding |
14.1.0 |
|
2018-06 |
SP-80 |
– |
– |
– |
Update to Rel-15 version (MCC) |
15.0.0 |
|
|
2018-09 |
SP-81 |
SP-180729 |
0015 |
1 |
F |
GAD shape(s) for high accuracy positioning |
15.1.0 |
|
2020-07 |
SP-88E |
– |
– |
– |
– |
Update to Rel-16 version (MCC) |
16.0.0 |
|
2021-03 |
SP-91E |
SP-210063 |
0018 |
1 |
C |
GAD shape for location estimate in Local Coordinates |
17.0.0 |