Table of Contents
What is the use of HLR in GSM?
Home location register (HLR) The home location register (HLR) is a central database that contains details of each mobile phone subscriber that is authorized to use the GSM core network.
What is the use of VLR?
The Visitor Location Register (VLR) is a database in a mobile communications network associated to a Mobile Switching Centre (MSC). The VLR contains the exact location of all mobile subscribers currently present in the service area of the MSC. This information is necessary to route a call to the right base station.
What is the role of VLR in GSM architecture?
VLR ( visitor location register): it is the component of gsm architecture. vlr provide TMSI (temporary mobile subscriber identity) to user and after that MSC allowed the user to use the network.
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.
How are the HLR and VLR used?
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 VLR HLR?
As From the Name VLR means Visitor Location Register and HLR means Home Location Register so HLR having all detail of subscriber and VLR having temporary details for mainly call processing related. Let’s check in detail HLR and VLR in Function in telecom.
What is difference between HLR VLR?
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 to a given mobile station (subscriber) while his VLR can vary depending on the mobility and network design.
What is HLR in network?
Database in a wireless network containing customer data, including service entitlements and call-routing information.
What is HLR and VLR in wireless communication?
A HLR is a database of user (subscriber) information, i.e., customer profiles, used in mobile (cellular) networks. A VLR is a database, similar to a HLR, which is used by the mobile network to temporarily hold profiles of roaming users (users outside their home area).
What is the use of SGSN and GGSN?
The GGSN, sometimes known as a wireless router, works in tandem with the Serving GPRS Support Node (SGSN) to keep mobile users connected to the Internet and IP-based applications. The GGSN converts incoming data traffic from mobile users (via the SGSN) and forwards it to the relevant network, and vice versa.
What is EIR in GSM?
The Equipment Identity Register (EIR) is a network entity used in GSM networks that stores lists of International Mobile Equipment Identity (IMEI) numbers, which correspond to physical handsets (not subscribers). …
What is the function of HLR and VLR?
What is the difference between HLR and VLR in GSM networks?
It is used for permenant data storage for GSM networks. It stores the profile data and permanant and current mobile numbers. VLR means Visitor location register. It is used for temporary data base of seeing mobile users. The similarities of HLR and VLR are edge routers in home network by HLR and foreign network by VLR are same.
What is the role of HLR in roaming?
It maintains location and other services in the roaming network. When a subscriber moves to another VLR, HLR removes the subscriber information from the previous VLR, by sending a cancel location. HLR: Home Location Register, is the database in-home (HPLMN) network of a mobile operator which controls the subscription of a mobile sim card.
What is D-interface between HLR and VLR?
Interface between HLR and VLR is called as D-Interface as per the GSM standard which help to share information between nodes. Information about location such as LAI (Location Area Information), attached status and Temporary Mobile Subscriber Identity (TMSI) are stored in the VLR.
What is the purpose of the VLR?
The VLR provides a local database for the subscribers wherever they are physically located within a PLMN, this may or may not be the “home” system. This function eliminates the need for excessive and time-consuming references to the “home” HLR database. Location Area Identity (LAI). Temporary Mobile Subscriber Identity (TMSI).