August 2018
Intermediate to advanced
480 pages
20h 5m
English
Content preview from Practical Guide to LTE-A, VoLTE and IoTBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
4Comprehensive Performance Evaluation of VoLTE
4.1 Overview
Voice over LTE (VoLTE) has been witnessing a rapid deployment by network carriers worldwide. During the phases of VoLTE deployment, carriers typically face challenges in understanding the factors affecting the VoLTE performance and then optimizing it to meet or exceed the performance of the legacy circuit‐switched network (i.e., 2G/3G). The main challenges in terms of VoLTE service quality are the LTE network optimization and the performance aspects of the service in different LTE deployment scenarios. In this chapter we present a detailed, practical performance analysis of VoLTE based on commercially deployed 3GPP Release 10 LTE networks. The analysis evaluates VoLTE performance in terms of the Real‐time Transport Protocol (RTP) error rate, RTP jitter and delays, the Block Error Rate (BLER) for different radio conditions, and VoLTE voice quality in terms of Mean Opinion Score (MOS). In addition, the chapter evaluates key VoLTE features such as Robust Overhead Compression (RoHC) and Transmission Time Interval (TTI) bundling. The chapter provides guidelines for best practice in VoLTE deployment as well as practical performance evaluation in commercial networks.
4.2 Introduction
VoLTE is an IP Multimedia System (IMS)‐based voice service over the LTE network [1]. The IMS supports various access and multimedia services and has recently become the standard architecture of the Evolved Packet Core (EPC) [1, 2]. 3GPP has adopted the ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.