3dB Consult article in Estrategia Empresarial
Estrategia Empresarial has published an article about internal development of 3dB Real Time Performance Monitoring Tool
Challenges and Strategies for Mobile Network Operators in Handling Voice and Data Traffic During Mass Events
A 3dB consult White Paper Mass events that bring together tens of thousands of people in a limited time and space are great ways of telling how well prepared one …
Understanding LTE X2 interface
The Problem An operator requested 3DB CONSULT to explain the concept of LTE X2 interface as they were facing problems configuring the X2 interface. They had done everything according to …
VoLTE drops without LTE data degradation
VoLTE, as a rising technology, forces operators to tackle problems they never had before. Commonly, LTE radio network settings are optimized to ensure good performance for data services, and when …
How does UE calculate CQI value?
CQI stands for Channel Quality Indicator. As the name implies, it is an indicator carrying the information on how good/bad the communication channel quality is. This CQI is for HSDPA. …
APN Mismatch and Multiple PDN connection due to the APN Correction feature
The Problem An operator was facing issues related to the multiple PDN connection with the same APN as described in the Diagram below. In this case user has 3 different …
CSFB to GSM/UMTS and related events
CSFB to GSM/UMTS is a reasonably simple procedure on paper, but can lead to quite some confusion when implementing in a live network. In the following article, we will explain …
PDCP Layer Average Throughput calculation in LTE
It is common for operators to measure average throughput of the User Plane because this is what most subscribers can/want to see. Calculating throughput for other LTE layers can sometimes …
eNodeB Sleeping Algorithms
The Problem An operator requested 3DB CONSULT experts to provide details on different algorithms, their use cases, benefit and impact to network KPI’s. Explanation / 3dB consult recommendation Using eNodeB …
Inter-PLMN Handover
The Problem An operator was having difficulties with inter PLMN Handover. The handover was X2 with no change in MME, MME Group or SGW. The TAC number was same for …