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Why LTE is called flat architecture?

LTE (Long-Term Evolution) is referred to as having a “flat architecture” due to its streamlined and simplified network structure compared to previous generations of wireless networks. The term “flat” signifies a departure from the more hierarchical and complex architectures of previous generations like 2G and 3G. Let’s delve into the characteristics that make LTE a … Read more

Why LTE uses OFDMA for downlink and SC-FDMA for uplink?

LTE (Long-Term Evolution) utilizes a combination of multiple access schemes for its downlink (DL) and uplink (UL) transmissions. Specifically, LTE employs OFDMA (Orthogonal Frequency Division Multiple Access) for the downlink and SC-FDMA (Single-Carrier Frequency Division Multiple Access) for the uplink. This strategic selection is driven by the unique requirements and characteristics of each direction of … Read more

Why is it called LTE and not 4G?

The term “LTE” stands for “Long-Term Evolution,” and its nomenclature reflects a strategic decision made by the telecommunications industry to signify a significant leap forward in wireless communication technology. The use of “LTE” instead of “4G” is rooted in the desire to convey a focus on continuous improvement, a commitment to long-term evolution, and a … Read more

Why is LTE called Long Term Evolution?

The name “LTE,” standing for “Long-Term Evolution,” reflects a strategic choice made by the telecommunications industry to emphasize a vision of continuous advancement and evolution in wireless communication technology. This nomenclature goes beyond mere generational labeling, indicating a commitment to long-term viability, adaptability, and sustained progress. Let’s explore in detail why LTE is called Long-Term … Read more

Why is GTP used in LTE?

The GTP (GPRS Tunneling Protocol) is a crucial protocol used in LTE (Long-Term Evolution) networks to facilitate the efficient transfer of user data and control information between different elements of the Evolved Packet System (EPS). GTP plays a fundamental role in establishing and managing tunnels, enabling the encapsulation and transport of user data across the … Read more

Why does LTE have hard handover?

LTE (Long-Term Evolution) primarily employs soft handover as the standard handover mechanism. Soft handover is a process where a mobile device is simultaneously connected to multiple base stations (eNodeBs) during a handover. This allows for a seamless transition and continuous communication, enhancing network reliability and coverage. However, in certain scenarios, LTE may use hard handover, … Read more

Why does LTE require IMS?

LTE (Long-Term Evolution) networks leverage IMS (IP Multimedia Subsystem) to enable a variety of multimedia services, including voice over LTE (VoLTE) and other rich communication services. The incorporation of IMS in LTE is driven by several factors related to the evolution of communication networks, the transition to an all-IP architecture, and the demand for enhanced … Read more

Why does LTE stand for Long Term Evolution?

The acronym LTE stands for “Long-Term Evolution,” reflecting the vision, objectives, and goals associated with the development and deployment of this advanced wireless communication technology. The term “Long-Term Evolution” encompasses several key aspects that define LTE and differentiate it from its predecessors. Let’s delve into the detailed reasons why LTE is named Long-Term Evolution: 1. … Read more

Why GTP protocol is used in LTE?

The GTP (GPRS Tunneling Protocol) is a key protocol used in LTE (Long-Term Evolution) networks to facilitate the transfer of user data and control information between different elements of the Evolved Packet System (EPS). GTP is integral to the functioning of LTE networks, playing a crucial role in the establishment and management of tunnels for … Read more

Why are cells barred in LTE?

Cell barring in LTE (Long-Term Evolution) networks is a mechanism used to restrict or prevent access to specific cells for User Equipment (UE) in certain scenarios. This feature is implemented to optimize network performance, manage congestion, and ensure the efficient utilization of resources. Cell barring is typically employed in situations where allowing access to certain … Read more