ProDeveloperTutorial

In this chapter we shall look at VoLTE IMS Invite Call Flow. Below image shows in brief of INVITE request if both UE are in same IMS Network…

Basic Registration call flow is as shown in image below: Below image shows the sequence of steps followed for Registration process: First step…

In the previous chapter we had an introduction to VoLTE architecture. In this chapter we shall see in detail about IMS Core Architecture. A…

VoLTE Introduction 1. VoLTE stands for Voice Over LTE. 2. Until VoLTE was launched, all the calls made from LTE network used to go to Circuit…

RLC Parameters in AM mode 1. POLL_SN: It will hold the value of SN of AMD for which poll bit is set. 2. PDU_WITHOUT_POLL Number of PDUs sent…

ARQ procedure is performed by RCL AM entity For ARQ procedure, we need to concentrate on 3 topics: 1. Retransmission 2. Polling 3. Status…

It will preform segmentation, reassembly, retransmission of RLC SDU. RLC Headers are added and removed. It will guarantees delivery of RLC…

RLC UM mode is used to deliver/receive the messages from DL/UL DTCH, MCCH and MTCH. Here segmentation and reassembly of RLC SDUs will be…

The operation of RLC TM Mode is very simple and easy to understand. TM stands for Transparent Mode Functions performed by RLC TM mode: 1.…

What is the need of timing Advance command? UE will not be in stationary position. It will be moving far away or moving near with respect to…