Category: TDD LTE
4G LTE Important QXDM Log Packets
QXDM is most widely used tool in wireless 4G,5G technology to capture Qualcomm based Mobile signalling and data details logs for debugging purpose. Whether it is Field testing or Lab […]
What parameters impact the EVM of transmitter chain ?
The error vector magnitude or EVM is a measure used to quantify the performance of a digital radio transmitter or receiver. A signal sent by an ideal transmitter or received by a receiver would have all constellation […]
TTI Bundling for better HARQ and Latency
TTI bundling enables a data block to be transmitted in consecutive TTIs, which are packed together and treated as the same resource during the scheduling process. TTI bundling makes use […]
Multi Carrier Cell Re-selection in LTE
Cell Re selection is a procedure used to change the cell after the UE is camped on a cell and stays in the Idle mode.This procedure is used to let […]
Citizens Broadband Radio Service Device(CBSD), Its Types and OEMs
Citizens Broadband Radio Service Device(CBSD): As per FCC, an eNodeB which is capable to support CBRS band is referred as Citizens Broadband Radio Service Device. LTE band B42 and B43 […]
5G/4G ARFCN Calculator Android App
Few weeks back, we wrote a post about 5G New Radio ARFCN calculator. Below is the link for the same. 5G Absolute Radio Frequency Channel Number (NR-ARFCN) In this post […]
Explain LTE Frame Structure both for FDD and TDD
Time duration for one frame (One radio frame, One system frame) is 10 ms. This means that we have 100 radio frame per second. Let’s look at the frame structure: […]
How Conventional AGC (Automatic Gain Control) works in receiver chain and its important parameters.
In wireless communication systems such as LTE, the received signal has an unpredictable signal power and varies over a wide dynamic range caused by multi-path fading channel and unwanted signals […]
LTE Handover Latency Calculation (Access Node)
In a cellular system, handover can be defined as a procedure to transfer a User Equipment (UE) and its context from a source cell to a target cell when source cell […]
Feature Group Indicators (FGI bits) in LTE – Rel. 8, Rel. 9 and Rel. 10
Feature Group Indicators (FGI bits) Feature Group Indicator (FGI) is a special Information Element (IE) within UE Capability Information message. The parameters other than FGI in UE Capability Information message […]