Table of Contents
- 1 What is HLR in mobile communication?
- 2 What is stored in HLR?
- 3 What is the necessity of maintaining two databases HLR and VLR in MSC?
- 4 What are the functions of an HLR home location register database?
- 5 What are the functions of HLR in GSM technology?
- 6 Why HLR and VLR are required in network and switching subsystem?
What is HLR in mobile communication?
Database in a wireless network containing customer data, including service entitlements and call-routing information.
What is stored in HLR?
Two types of information are stored in the HLR: subscriber information and part of the mobile information to allow incoming calls to be routed to the MSC for the particular mobile. The HLR stores IMSI, MS ISDN number, VLR address, and subscriber data (e.g., supplementary services, etc.).
What is the use of HLR and VLR in mobile network?
In general, HLR contains information about all subscribers within a network, while VLR contains more dynamic information relevant to subscribers roaming within the VLR area. HLR acts as a fixed reference point for a particular mobile station (subscriber), while its VLR can vary depending on mobility and network design.
What is the necessity of maintaining two databases HLR and VLR in MSC?
The main role of VLR is to minimize the number of queries that MSCs have to make to home location register (HLR), which contains permanent subscriber’s data. The other essential data stored in a VLR in addition to HLR: a copy of HLR data, Plus. TMSI: Temporary mobile subscriber identity.
What are the functions of an HLR home location register database?
HLR (Home Location Register) is a database that contains various information about all of the mobile subscribers of a mobile network such as the mobile numbers, services, whether the numbers have been ported to another network and similar information.
Why HLR and VLR are required in a network and switching subsystem?
The primary functions of the VLR are: To inform the HLR that a subscriber has arrived in the particular area covered by the VLR. To track where the subscriber is within the VLR area (location area) when no call is ongoing. To allow or disallow which services the subscriber may use.
What are the functions of HLR in GSM technology?
The HLR is a database used for storage and management of subscriptions. The HLR is considered the most important database, as it stores permanent data about subscribers, including a subscriber’s service profile, location information, and activity status.
Why HLR and VLR are required in network and switching subsystem?
What is the main function of HLR VLR of GSM operation?