The SGi interface in LTE network architecture acts as the gateway between the LTE network and external packet data networks like the Internet. It facilitates data transfer, assigns IP addresses, manages Quality of Service (QoS), and enforces security measures. When LTE users access the Internet or other external networks, data packets flow through this interface, … Read more
The S1 interface in an LTE network serves as the essential link between the eNB (radio access network) and the EPC (core network). It is divided into two parts: S1-U, responsible for user data transmission, and S1-MME, handling control signaling. This interface facilitates functions such as bearer management, handovers, initial device attachment, and security measures, … Read more
What is the Difference Between PUCCH and PUSCH in LTE? In LTE (Long-Term Evolution) networks, the concepts of PUCCH (Physical Uplink Control Channel) and PUSCH (Physical Uplink Shared Channel) refer to two distinct types of channels used for communication between the User Equipment (UE) and the eNodeB (evolved NodeB, which is the base station). Both … Read more
What is the Difference Between Inter and Intra Handover in LTE? In LTE (Long-Term Evolution) networks, handover refers to the process of transferring an active connection from one cell or base station to another without interrupting the ongoing communication. Handover ensures seamless mobility for users as they move across different coverage areas while maintaining a … Read more
What is the Difference Between GBR and Non-GBR in LTE? In LTE (Long-Term Evolution) networks, the terms GBR (Guaranteed Bit Rate) and non-GBR are used to describe different types of QoS (Quality of Service) bearers that handle traffic with varying priority levels and service guarantees. Understanding the difference between GBR and non-GBR bearers is crucial … Read more
What is the difference between E-UTRA and E-UTRAN? E-UTRA and E-UTRAN are terms associated with 4G LTE networks. E-UTRA, or Evolved Universal Terrestrial Radio Access, specifically denotes the radio access technology used for wireless communication between user devices and cellular network infrastructure. On the other hand, E-UTRAN, or Evolved Universal Terrestrial Radio Access Network, encompasses … Read more
What is the difference between EPC and EPS in LTE? EPC (Evolved Packet Core) is the core network architecture in LTE responsible for functions like mobility management and session handling, while EPS (Evolved Packet System) encompasses the entire LTE system, including the core network and radio access network, providing end-to-end connectivity for packet-switched data services. … Read more
MAC filtering is a network security feature that permits only specified devices with known MAC addresses to connect, bolstering security by preventing unauthorized access. It reduces the attack surface, offers control over connected devices, and is useful for guest networks and parental control, but it’s not entirely foolproof and should be combined with other security … Read more
Successive Interference Cancellation (SIC) is a signal processing technique in LTE that improves multi-user communication by iteratively decoding and canceling out interfering signals. It enhances throughput, capacity, and communication quality by effectively mitigating interference, allowing multiple users to transmit simultaneously in the same frequency band, but it can be computationally intensive in complex scenarios. What … Read more
Inter-frequency handover (IFHO) in LTE involves a series of steps to seamlessly transition a user’s device from one frequency band to another. It begins with signal measurement and evaluation, triggering the handover when a neighboring cell’s signal quality is better. The serving cell informs the network, which prepares for the handover. A Handover Command is … Read more