LTE Layer 1 (Physical Layer) Interview Questions
What is the smallest time measurement unit Ts in LTE? Show the calculation. How many Ts are there in 1...
Techplayon Blog
MASTER INFORMATION BLOCK (MIB)
MASTER INFORMATION BLOCK (MIB) is the broadcast information transmitted by eNodeB at periodically. After Decoding the PSS and SSS information...
4G LTE EUTRAN Bands
LTE Bands and Available Bandwidth Band Uplink-fmin Uplink-fmax Downlink-fmin Downlink-fmax Available Bandwidth Duplex Mode Remark 1 1920 MHz 1980 MHz...
PSS and SSS (LTE Synchronization)
PSS and SSS (LTE Synchronization) After power-up, the UE tries to obtain time and frequency synchronization with the system. For this,...
dB , dBm Terminology
I keep seeing people using the terms “dB” and “dBm”, interchangeably, when they actually mean very different things. So, here’s...
3GPP Release 9
The initial enhancements were included to LTE in 3GPP release 9 as frozen in Dec 2009. These enhancements were the...
Radio Frequency Bands
Radio frequency (RF) is any of the electromagnetic wave frequencies that lie in the range extending from around 3 kHz to 300 GHz. Following is the...
Passive Inter-modulation (PIM)
Passive Inter-modulation (PIM) is the generation of interfering signals caused by non-linearities that occurs in passive components such as antennas, cables,...
1dB Compression Point (P1dB Point)
1dB Compression Point When operating in the linear region of a device (such as power amplifier, mixer etc.), gain through...
VSWR
Impedance mismatches in a radio-frequency (RF) electrical transmission line cause reflection of rf power and thus power loss. VSWR is...