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LTE NB-IoT NPRACH: Function, Formats, and Preamble Structure

Explore the LTE NB-IoT NPRACH function for initial connections, format types (0 and 1), preamble structure, and frequency hopping patterns in NB-IoT networks.

lte

nb-iot

nprach

LTE NB-IoT Preamble and Reference Signals: NPSS, NSSS, NRS, DMRS

Understand LTE NB-IoT preamble and reference signals including NPSS, NSSS, NRS, and DMRS. Learn their functions, locations within the NB-IoT frame, and differences from LTE PSS.

lte

nb-iot

reference signal

LTE PBCH Channel Explained: Physical Broadcast Channel

Explore the LTE PBCH (Physical Broadcast Channel), its role in broadcasting essential system information (MIB), and its overhead impact on LTE network capacity.

lte

pbch

broadcast channel

LTE PCFICH Channel: Physical Control Format Indicator Channel

Learn about the LTE PCFICH channel, which provides information about the number of symbols used for PDCCH transmission in each 1ms subframe.

lte

channel

pcfich

LTE PDCCH: Physical Downlink Control Channel Explained

Explore the LTE PDCCH channel, its function in carrying DCI, and its format within the LTE system. Understand CCEs, modulation, and coding rates.

lte

pdcch

downlink

LTE PDSCH Channel: Physical Downlink Shared Channel Explained

Learn about the LTE PDSCH channel, its role in data transmission, broadcast information, and RRC signalling within the LTE network.

lte

pdsch

downlink

LTE PHICH: Physical Hybrid ARQ Indicator Channel Explained

Understand the LTE PHICH (Physical Hybrid ARQ Indicator Channel), its function in carrying ACK/NACK signals for uplink data, and its key parameters.

lte

phich

arq

LTE PMCH (Physical Multicast Channel) Explained

The PMCH, or Physical Multicast Channel, within LTE defines the physical layer structure for carrying Multimedia Broadcast and Multicast Services (MBMS).

lte

pmch

multicast

LTE PRACH Channel: Physical Random Access Channel Explained

Explore the LTE Physical Random Access Channel (PRACH), its structure, preamble formats, and configuration index. Understand how UEs use PRACH to initiate network access.

lte

prach

random access

LTE PSS vs SSS: Primary and Secondary Synchronization Signals

Explore the primary (P-SS) and secondary (S-SS) synchronization signals in LTE, their functions, sequences, and role in cell search and synchronization.

lte

synchronization

pss

LTE PUCCH: Physical Uplink Control Channel Explained

Learn about the LTE PUCCH (Physical Uplink Control Channel), used for transmitting UCI (Uplink Control Information) such as HARQ ACK/NACK, CQI, and scheduling requests in the LTE system.

lte

pucch

uplink channel

LTE PUSCH: Physical Uplink Shared Channel Explained

Understand the LTE PUSCH channel, its role in carrying RRC signaling, UCI, application data, and its modulation schemes like QPSK, 16QAM and 64QAM.

lte

pusch

uplink

LTE Reference Signals: RS, DMRS, and SRS Explained

Explore LTE reference signals (RS), demodulation reference signals (DMRS), and sounding reference signals (SRS) used for channel estimation and coherent demodulation.

lte

reference signal

dmrs

LTE Relay vs. LTE Repeater: Key Differences Explained

Learn the distinctions between LTE relays and repeaters, including their functionalities, advantages, and disadvantages for optimizing LTE network performance.

lte

relay

repeater

LTE RNTI vs. GUTI: Identifiers Explained

Understand the basics of RNTI and GUTI in LTE. Learn about RNTI types (P-RNTI, SI-RNTI, etc.) and the structure of GUTI, including PLMN, MMEI, and M-TMSI.

lte

rnti

guti

LTE Routing Area Update (RAU) Procedure

Explanation of the Routing Area Update (RAU) procedure in LTE, covering scenarios with and without Serving Gateway (S-GW) changes.

lte

routing area

mobile communication

LTE RSRP vs. RSRQ: Understanding the Key Differences

Explore the differences between RSRP and RSRQ in LTE networks. Learn how they measure signal strength and quality, and their role in cell selection, reselection, and handover.

lte

rsrp

rsrq

LTE S1-MME Interface: Position and Function Explained

Learn about the LTE S1-MME interface, its role in the LTE network architecture, and its key functions in mobile communication.

lte

s1 mme interface

network architecture

LTE Small Cell vs. Large Cell: Key Differences Explained

Explore the differences between LTE small cells and large cells, including features, applications, and their roles in heterogeneous networks (HetNets).

lte

small cell

large cell

LTE SON: Self-Organizing Networks Explained

Explore LTE Self-Organizing Networks (SON), a key feature for simplified LTE network installation, optimization, and maintenance. Learn about self-configuration, optimization, and healing.

lte

network

optimization