What is HLR and HSS in telecom?

Home Subscriber Server (HSS) / Home Location Register (HLR)

Every mobile network, including virtual operators, uses a server that stores subscriber information, current location and SIM details like IMSI (mobile subscriber identity) and authentication keys.

Is HSS same as HLR?

Home Subscriber Server (HSS) is the evolution of the HLR for the 4G networks. Similar to the HLR, the main function of the HSS is to communicate with the network and provide subscriber profile and authentication information.

What is HLR in IMS?

A Home Subscriber Server(HSS) / Home Subscriber Register(HLR) serves as the primary database repository of subscriber information within a LTE/EPC or IMS network core.

What is the function of HSS in LTE?

Home Subscriber Server (HSS) is the main subscriber database used within the IP Multimedia Subsystem (IMS) which provides details of the subscribers to other entities within the network. The IMS enables users to be granted or refused access to other services dependent on their status.

What is HLR in 5G?

Home Location Registers are a component of 2G and 3G mobile networks. Every cellular carrier that facilitates telecommunications on one of these networks maintains its own HLR. Instead of an HLR, 4G networks have a Home Subscriber Server (HSS). In 5G networks, Unified Database Management (UDM) performs these functions.

What is HLR in 4G?

Every 2G and 3G network operator maintains its own Home Location Register: a network database that contains certain details for each customer/subscriber. On 4G networks, a master database known as a Home Subscriber Service (HSS) performs this role. For 5G, this is managed by a Unified Database Server.

What is HLR used for?

The Home Location Register (HLR) is the main database of permanent subscriber information for a mobile network. The HLR is an integral component of CDMA (code division multiple access), TDMA (time division multiple access), and GSM (Global System for Mobile communications) networks.

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.

What is EPC in LTE?

Evolved Packet Core (EPC) is a framework for providing converged voice and data on a 4G Long-Term Evolution (LTE) network. 2G and 3G network architectures process and switch voice and data through two separate sub-domains: circuit-switched (CS) for voice and packet-switched (PS) for data.

What is PDN in LTE?

These networks are called PDN (Packet Data Network), hence the name. The PDN GW routes packets to and from the PDNs. The PDN GW also performs various functions such as IP address / IP prefix allocation or policy control and charging.

What is HLR in SIM card?

Quick definition: A Home Location Register (HLR) is a database that contains subscriber information such as the International Mobile Subscriber Identity (IMSI), the phone number associated with the subscriber (the MSISDN), their account status, and their last known location.

What is HLR status?

An HLR is a database with context and status information about every mobile phone in a mobile network and forms the backbone of subscriber data. An HLR Lookup dips into a mobile network operator’s HLR to obtain current and up-to-date status information on a mobile phone number.

What information is HLR registered?

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 HLR interacts with the Mobile Switching Center (MSC), which is a switch used for call control and processing.

What is HLR VLR AuC EIR?

Role of HLR VLR and AUC:
It gives the information of the subscriber to the msc. When a user want to connect call then BSC transfer the call to the msc, MSC wants information whether the subscriber is from the same msc or from other for this MSC call to the HLR and VLR.

What is difference between LTE and EPC?

The EPC represents the Core of an LTE network. It is formed by multiple nodes, the main ones being MME, SGW, PGW and HSS. This nodes offer multiple functionality like mobility management, authentication, session management, setting up bearers and application of different Quality of Services.

What is EPC and 5GC?

EPC (Evolved Packet Core) has ever been the crucial part of 4G LTE. While with the ongoing innovation of the telecommunication industry, 5GC (5G Core Network) defined by 3GPP turns to a rising star in core network field.

What is EPS and EPC?

EPS is composed of E-UTRAN (Evolved UTRAN) and EPC (Evolved Packet Core) which are commonly known as 3G-LTE (Long Term Evolution) and SAE (System Architecture Evolution) respectively. E-UTRAN is focused on the evolution of the Radio Access Network while EPC looks into the future needs of the core network.

How do I access HLR?

The HLR lookup allows you to validate contacts in your database. Checking a phone number is easy. All you have to do is enter the SMSAPI Customer Panel, go to the Additional functions menu and select Check number – HLR.

What is HLR purpose?

The HLR is used to identify their last known location. This information is updated each time the device is transferred in to another location. The HLR also facilitates Short message services (SMS) by scanning through the HLR to identify the mobile switching center (MSC) currently used by the receiving party.

What is the full form of HLR?

Database in a wireless network containing customer data, including service entitlements and call-routing information.

How does HLR work?

What is a VLR number?

The Virtual Location Register contains the international mobile subscriber identity (IMSI), which helps to interpret the location of the mobile subscriber.

What is EPC in 4G?

What is EPC in 5G?

The core is the heart of a mobile network: Evolved Packet Core powers 4G LTE networks, the 5G Core powers standalone 5G networks. The Evolved Packet Core (EPC) converged voice and data by replacing circuit switching with packet switching.

What does 5GC mean?

5G Core (5GC) is the heart of a 5G mobile network. It establishes reliable, secure connectivity to the network for end users and provides access to its services.