HLR AND VLR IN MOBILE COMPUTING PDF

Maintained by the subscriber's home carrier or the network operator where the user initiated the call , the HLR contains pertinent user information, including address, account status, and preferences. The third integral element is the Visiting Location Register VLR , which maintains temporary user information such as current location to manage requests from subscribers who are out of the area covered by their home system. You forgot to provide an Email Address. This email address is already registered. Please login. You have exceeded the maximum character limit.

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Home Location Register — HLR in gsm is main database which save all permanent information about subscriber for network which having billing details, subscriber identity, current status in network and many more for all type of technology either 2g, 3g, 4g or 5g.

The HLR in telecom is the reference database for subscriber parameters. It has detail of current recharge of prepaid user so far its is very complex but i just make it in simple word for you. Various identification numbers and addresses are stored, as well as authentication parameters.

This information is entered into the database by the network provider when a new subscriber is added to the system. The data it contains is remotely accessed by all the MSCs and the VLRs in the network and, although the network may contain more than one HLR, there is only one database record per subscriber — each HLR is therefore handling a portion of the total subscriber database. Visitor Location Register — VLR is temporary database which save temporary information about subscriber like current subscriber location, subscriber mobile status on or off and many more, vlr is also required in all technology 2g, 3g, 4g and 5g.

The VLR database will therefore contain some duplicate data as well as more precise data relevant to the subscriber remaining within the VLR coverage here coverage means status of customer of last lac location area code updation. The TMSI will be updated frequently, this makes it very difficult for the call to be traced and therefore provides a high degree of security for the subscriber. Google serves cookies to analyze traffic to this site and for serving personalized ads.

Learn more. Skip to content. On entry to a new LAI. On entry to a new VLR. Subscriber Status Registered or Deregistered.

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What is HLR and VLR and its function in GSM

Home Location Register — HLR in gsm is main database which save all permanent information about subscriber for network which having billing details, subscriber identity, current status in network and many more for all type of technology either 2g, 3g, 4g or 5g. The HLR in telecom is the reference database for subscriber parameters. It has detail of current recharge of prepaid user so far its is very complex but i just make it in simple word for you. Various identification numbers and addresses are stored, as well as authentication parameters.

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Network switching subsystem

The Network switching system NSS , the main part of which is the Mobile Switching Center MSC , performs the switching of calls between the mobile and other fixed or mobile network users, as well as the management of mobile services such as authentication. 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. When an individual buys a subscription in the form of SIM, then all the information about this subscription is registered in the HLR of that operator.

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Home Location Register (HLR)

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