Is the main database of permanent subscriber information for a mobile network?
The HLR plays an important role in SMS (as well as voice) routing, because it provides information to where the text message should be routed. To gather this information in A2P messaging, SMS providers like tyntec look up the HLR prior to sending the message to find out how to best route it. This is the “number lookup” (also known as HLR lookup, number query, etc.). Show Enterprises that work with several communications providers may need to look up the phone numbers with a specialist like tyntec, making sure that SMS messages are routed and delivered appropriately. Check our Number Information product page for more information. Subscriber databases are key elements of any mobile network. Evolution from classical telecommunication networks to current mobile networks has changed their architecture and also services they provide. New functionalities are required and they should fulfill more complex tasks. Evolution from GSM network through UMTS and LTE to the newest technology IMS is happening nowadays. This trend includes evolution from home location register (HLR) and authentication center (AUC) to home subscriber server (HSS) and introduction of new unified storage architectures like SDM. Classical networks usually have several subscriber databases distributed through the nodes, such as:
With the solution of unified storage architectures, data from many incompatible and proprietary databases is consolidated into a single repository. The data is shared between multiple applications like 3GPP HSS, HLR, AAA, EIR, MNP or 3rd parties, not duplicated for each one. Since there is only one copy of each piece of data, with a common definition, there can be none of the inconsistencies and ambiguities that inevitably arise otherwise. In the traditional silo approach each new service requires a new application with own database. That database needs to be put into a highly available architecture, integrated with a new interface into the provisioning systems and appropriate maintenance processes need to be set up. With unified storage architectures solution, only a simple extension to the central repository’s data model and the already established provisioning interface is required. As a result, new services can be introduced much faster afterwards. There is an even greater gain in speed when activating customers. In the traditional approach, this activation requires a sequence of actions for each separate application. A failure in any one can cause the whole sequence to be reversed, or to be left in an incomplete and inconsistent state. With new solutions, there is just one real-time provisioning interface to be touched to perform activation and verify it immediately. Customers can instantly use their services.
Benefits and ConclusionNew unified solution is designed for telecommunication operators from scratch, comprising extreme high availability and reliability together with fastest speed and performance. Data is shared in real-time between several sites; each site is always active and always has the latest data. If any site is incapacitated or becomes disconnected from the network, the full load is instantly and automatically carried between the remaining sites. New subscriber databases support multiple applications from third parties, operators and different vendors. It works with any standard industry domain and technology including CS, PS, EPS or LTE. Bringing all subscriber data into a single repository simultaneously ensures a reliable, real-time view of the entire end-user – a customer view rather than an application view – and it significantly reduces the costs of managing the data. What is VLR and HLR?There are two types of location register: home location register (HLR) and visitor location register (VLR). An HLR is a database for mobile subscriber management. Stored therein are the subscription information and some location information enabling charging and routing.
Which network element will keep permanent information about subscriber?10.1 Home Subscriber Server (HSS) The HSS can be described as the master database for a given user. It is the entity containing the subscription-related information to support the network entities handling mobility and user IP sessions.
What is VLR in mobile?A visitor location register (VLR) is a server in a cellular network that supports roaming functions for users outside the coverage area of their own HLR.
What is HLR in mobile communication?Database in a wireless network containing customer data, including service entitlements and call-routing information.
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