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The Gateway Mobile Location Centre (GMLC) contains functionality required to support
location-based service Location-based service (LBS) is a general term denoting software service (economics), services which use geographic data and information to provide services or information to users. LBS can be used in a variety of contexts, such as health, indoor ...
(LBS). In one
public land mobile network In telecommunication, a public land mobile network (PLMN) is a combination of wireless communication services offered by a specific operator in a specific country. A PLMN typically consists of several cellular technologies like GSM/2G, UMTS/3G, L ...
(PLMN), there may be more than one GMLC. The GMLC is the first node an external LBS client accesses in a GSM, UMTS or LTE network. The GMLC may request routing information from the
home location register Network switching subsystem (NSS) (or GSM core network) is the component of a GSM system that carries out call out and mobility management functions for mobile phones roaming on the network of base stations. It is owned and deployed by mobile ...
(HLR) or
home subscriber server The IP Multimedia Subsystem or IP Multimedia Core Network Subsystem (IMS) is a standardised architectural framework for delivering IP multimedia services. Historically, mobile phones have provided voice call services over a circuit-switched-style ...
HSS). After performing registration authorization, it sends positioning requests to either the visited
mobile switching centre Network switching subsystem (NSS) (or GSM core network) is the component of a GSM system that carries out call out and mobility management functions for mobile phones roaming on the network of base stations. It is owned and deployed by mobile ...
(VMSC), SGSN serving GPRS support node (SGSN) or mobile switching centre (MSC) server and receives final location estimates from the corresponding entity. GMLC is used for various services such as emergency services, vehicle tracking, location-based advertising, and much more.


References

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