Cisco Cisco ASR 5000
Location Services
▀ How Location Services Works
▄ SGSN Administration Guide, StarOS Release 18
Figure 51. LCS Architecture
The SGSN informs the HLR/HSS regarding the LCS capabilities of UE in GPRS (2G) or UMTS (3G) networks. The
SGSN may include the IP address of the V-GMLC associated with the SGSN in the
MAP_UPDATE_GPRS_LOCATION message during Attach and ISRAU procedures.
SGSN may include the IP address of the V-GMLC associated with the SGSN in the
MAP_UPDATE_GPRS_LOCATION message during Attach and ISRAU procedures.
Limitations
Currently, SGSN support is limited to:
1. A single location request at a time for the target UE. Concurrent location requests are not supported.
2. Only Provide Subscriber Location messages with the id as IMSI are supported.
2. Only Provide Subscriber Location messages with the id as IMSI are supported.
Flows
Flows
Location Services call flows are standards compliant for the SGSN.