Which Cell Parameters needs to Obtain in LTE? To provide the most critical information to the UEs, the eNodeB uses the BCH channel The information is sent on pre-defined time-frequency resources. This information is organized into different information blocks: The MIB, the Master Information Block. System Frame Number DL -downlink System Bandwidth Number of Transmit Antennas … Read more
Modulation and TB size LTE Modulation Techniques In Long-Term Evolution (LTE) networks, modulation is a fundamental aspect of the physical layer responsible for encoding digital information into analog signals for transmission. LTE employs various modulation schemes to adapt to different channel conditions and maximize data rates. The primary modulation schemes used in LTE include: Quadrature … Read more
LTE Downlink & Uplink Physical Channel LTE Downlink Physical Channel Physical Downlink Shared Channel ( PDSCH) This channel is used for unicastand paging functions. Carries the DL-SCH and PCH. QPSK,16-QAM,and 64-QAM Modulation. Physical Downlink Control Channel (PCSCH) Informs the UE about the resource allocation of PCH and DL-SCH, and Hybrid ARQ information related to DL-SCH. Carries … Read more
Transmit Diversity Gain in LTE In Long-Term Evolution (LTE) wireless communication systems, transmit diversity gain plays a crucial role in enhancing the reliability and performance of data transmission. Transmit diversity involves the use of multiple antennas at the transmitter to improve the quality of the received signal at the receiver. One common technique employed in … Read more
In Long-Term Evolution (LTE), the channel architecture refers to the organization and allocation of different types of channels used for communication between the User Equipment (UE) and the Evolved NodeB (eNB). LTE employs a flexible and efficient channel architecture to support various services and optimize resource utilization. Here are key components of the channel architecture … Read more
LTE Possible Dimensioning Concepts LTE network dimensioning involves planning and optimizing various aspects of the network to ensure efficient use of resources and meet performance objectives. Here are some key dimensioning concepts in LTE: Coverage Dimensioning: Cell Size: Determine the coverage area of each cell based on the expected traffic density, terrain, and interference considerations. … Read more
LTE : Data Transmission in DL In Long-Term Evolution (LTE), data transmission in the Downlink (DL) involves the transfer of user data from the Evolved NodeB (eNB) to the User Equipment (UE). The LTE DL is designed to provide high data rates, low latency, and efficient spectrum utilization. Here’s an overview of the key aspects … Read more
Establishment and Maintenance of the RRC connection in LTE In Long-Term Evolution (LTE), the Radio Resource Control (RRC) connection plays a crucial role in establishing and maintaining the communication link between the User Equipment (UE) and the Evolved NodeB (eNB). The process involves several steps: RRC Connection Establishment: Random Access Procedure: The UE initiates communication … Read more
OFDMA Principles in LTE Orthogonal Frequency Division Multiple Access (OFDMA) is a key technology used in Long-Term Evolution (LTE) to efficiently manage the transmission of data over the radio interface. Here’s an explanation of OFDMA principles in LTE: Frequency Division Multiplexing (FDM): OFDMA uses FDM to divide the available frequency spectrum into multiple subcarriers. Each … Read more
Resource Element Group in LTE In Long-Term Evolution (LTE), Resource Element Group (REG) is a fundamental concept related to physical layer resources. It is essentially a grouping of Resource Elements (REs), which are the smallest units of the time-frequency grid in LTE. The REG is used to allocate resources for transmission and reception. Now, let’s … Read more