Overview of Dynamic Scheduling for VoLTE
Dynamic scheduling helps the LTE network assign radio resources to users based on real-time needs. This method is important for services like VoLTE, which…
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VoLTE Speech Codec Scheme and Speech Traffic Model
VoLTE uses the adaptive multi-rate (AMR) or enhanced voice services (EVS) speech codec scheme. VoLTE Speech Codec Scheme AMR AMR is an audio data…
Read articleROHC in VoLTE
Robust Header Compression (ROHC) is used in mobile networks to make voice data packets smaller by compressing their headers. This helps reduce the load…
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VoLTE Background
Providing voice service is a key part of any mobile network. In LTE, there are three main ways to support voice calls: using dual-standby…
Read articleCSFB UTRAN EventB1 RSCP Trigger Threshold: LTE Parameter Optimization
The CSFB UTRAN EventB1 RSCP Trigger Threshold defines the RSCP value required for UEs to trigger Event B1 during Circuit-Switched Fallback (CSFB) to UTRAN.…
Read articleCSFB UTRAN EventB1 ECN0 Trigger Threshold
The CSFB UTRAN EventB1 ECN0 Trigger Threshold parameter defines the Ec/No threshold that determines when a UE reports a UTRAN cell for Circuit Switched…
Read articleCSFB UTRAN EventB1 Time To Trigger: LTE RF Parameter Optimization
Circuit Switched Fallback (CSFB) is crucial for enabling voice services in LTE networks by redirecting the UE to a 3G network (UTRAN). The CSFB…
Read articleMinimum RX Level (Qrxlevmin): LTE RF Parameter Optimization
In LTE networks, the Minimum RX Level parameter (Qrxlevmin) is a important parameter under the Cell Selection (CellSel) category. It defines the minimum received…
Read article5G Throughput Analysis and Optimization
Throughput in 5G NR is influenced by multiple factors across the end-to-end (E2E) network, including the UE, air interface, gNodeB, transmission network, core, and…
Read articleWhat is Hyper Cell in 5G NR?
Hyper Cell is a 5G feature designed for high-speed linear coverage scenarios like subways or railways. It minimizes frequent handovers caused by UEs moving…
Read articleLTE RF Optimization (RAN) Interview Questions & Answers
Q#01: What are the failure reasons of SRVCC? Q#02: What is Group & adaptive/Frequency based CA? 1- In Group based CA, we need to…
Read articleE-RAB Connection Establishment Failures
When analyzing drive test data, the initial E-RAB (Evolved Radio Access Bearer) connection establishment success rate is assessed from the time the User Equipment…
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