GSM only” refers to a mobile phone or device that supports only the GSM network standard. This means that the device can only connect to networks using GSM technology and will not be compatible with other network standards such as CDMA, 3G, or LTE. This is relevant in regions where GSM is the primary mobile … Read more
HLR and VLR in mobile computing, as discussed on Javatpoint, are fundamental components in the architecture of mobile networks. The Home Location Register (HLR) is a central database that stores permanent subscriber information, including user profiles, service subscriptions, and authentication details. The Visitor Location Register (VLR) is a temporary database that handles information about subscribers … Read more
UMTS, or Universal Mobile Telecommunications System, is a third-generation (3G) mobile cellular system for networks based on the GSM standard. It provides higher data transfer rates and more efficient use of the available radio spectrum compared to its predecessors. UMTS supports a range of services, including high-speed internet access, video calling, and mobile TV. It … Read more
The VLR (Visitor Location Register) works by managing the temporary details of mobile subscribers who are roaming outside their home network. When a subscriber enters a new network area, the VLR in that area temporarily stores information about the subscriber, such as their location and service availability. It communicates with the HLR (Home Location Register) … Read more
Node B in telecommunications refers to the base station in a 3G UMTS (Universal Mobile Telecommunications System) network. It serves as the interface between mobile devices and the network, handling the transmission and reception of radio signals. Node B is responsible for converting radio signals to digital signals and vice versa, facilitating communication between mobile … Read more
BSC in telecommunications stands for Base Station Controller. It is a critical component in 2G GSM (Global System for Mobile Communications) networks. The BSC manages the radio resources for multiple Base Transceiver Stations (BTS) within a network. Its primary functions include managing handovers between BTSs, allocating frequencies, controlling power levels, and ensuring efficient use of … Read more
A cell phone repeater, also known as a signal booster, amplifies weak cellular signals to improve reception and call quality in areas with poor signal strength. It works by receiving the existing weak signal through an external antenna, amplifying it using an amplifier, and then retransmitting the strengthened signal indoors through an internal antenna. This … Read more
PLMn (Public Land Mobile Network) refers to a network operated by a particular mobile operator that provides land-based wireless telecommunications services to users within a specific geographic area. The PLMn identifies the network and its associated services, ensuring that mobile devices connect to the correct network for communication, roaming, and service access. What is PLMn … Read more
In a Multi-Carrier Wireless Communication (MCWC) system, the Home Location Register (HLR) and Visitor Location Register (VLR) serve distinct roles. The HLR is responsible for maintaining a subscriber’s permanent data, such as their profile and subscription details. It stores information about user identities, such as the International Mobile Subscriber Identity (IMSI), and is crucial for … Read more
The Serving GPRS Support Node (SGSN) and Gateway GPRS Support Node (GGSN) are two key components in the GPRS (General Packet Radio Service) architecture within mobile telecommunications. The SGSN is responsible for managing and delivering data packets to and from mobile devices within its coverage area, including tasks such as mobility management, session management, and … Read more