Other cellular components actively working with the HLR include the gateway mobile switching center (G-MSC), visitor location register (VLR) and the. The HLR interacts with the Mobile Switching Center (MSC), which is a switch used for The third integral element is the Visiting Location Register (VLR), which. The HLR connects to the following elements: The G-MSC for handling incoming calls; The VLR for handling requests from mobile phones to attach to the.

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What is HLR and VLR and its function in GSM?

The term is only valid in the context of one call, since any MSC may provide both the gateway function and the visited MSC function. Irrelevant to Specialties or not an answer. Do you need help in adding the right keywords to your CV? Why do they decide that the coverage area cell ccomputing GSM network has a hexagon shape?

What is Home Location Register (HLR)? – Definition from Techopedia

The concept of lawful interception is also known, following the relevant U. The Authentication Center is a protected database that stores a coomputing of the secret key stored in each subscriber’s SIM card, which is used for authentication and ciphering of the radio channel. Nlrwhich Microsoft tries Views Followers 2 Upvote 0.

The AuC does not engage directly in the authentication process, but instead generates data known as triplets for the MSC to use during the procedure.

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.


The data it contains is remotely accessed by all the MSCs and computimg 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. Mobile Subscriber Roaming Number.

GSM – The Network Switching Subsystem (NSS)

Question already answered Please make sure that your answer is written in the same language as the question. A Brief History of AI. Mobile switching centre server. The MSC performs the switching of calls between the mobile vomputing other fixed or mobile network users, as well as the management of mobile services such as registration, compiting, location updating, handovers, and call routing to a roaming subscriber.

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Actually HLR Having all the detail like customer ID, customer number, billing detail and for prepaid with IN intelligent network its has detail of current recharge of prepaid user so far its is very complex but i just make it in simple word for you. The Network switching system NSSthe main part of which is the Mobile Switching Center MSCperforms 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.

Thank you for answering the question. While A and B are talking with each other, C can join the call and listen silently. Computijg 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 difference between little endian and big endian data formats? What is the generation of each of the following mobile communication system: The HLR is a system which directly receives and processes MAP transactions and messages from elements in the GSM network, for example, the location update messages received as mobile phones roam around.


Follow Upvote Report Question Comments 0. 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 multimedia messaging service center supports the sending of multimedia messages e. Views Read Edit View history. You can’t add content on Bayt. Articles needing additional references from March All articles needing additional references.

GSM – The Network Switching Subsystem (NSS)

Next Question Which system is better gsm or cdma? Various identification numbers and addresses are stored, as well as authentication parameters. My Question is New.

The equipment identity register is often integrated to the HLR. By using this site, you agree to the Terms of Use and Privacy Policy. The HLR data is stored for as long as a subscriber remains with the mobile phone operator. It is also responsible for generating billing data of roaming subscriber. The MSC sets up and releases the end-to-end connectionhandles mobility and hand-over requirements during the call and iin care of charging and real time prepaid account monitoring.

More Questions Like This. There are various different names for MSCs in different contexts which reflects their complex role in the network, all of these terms though could refer to the same MSC, compiting doing different things at different times.