Evolution from GSM to LTE-Advanced and Voice over LTE (VoLTE)

From GSM to Voice over LTE (VoLTE)

Voice-over-LTE is a big deal for mobile operators worldwide today moving subscribers from their traditional 2G networks to their new 4G networks. Operators want to to get off of GSM and CDMA and on to LTE to increase their capacity tenfold or more for their networks.

Voice and messaging services for Long-Term Evolution (LTE) is happening.  Using IP Multimedia Subsystem (IMS) developed by 3GPP, end-to-end voice and SMS messaging along with Roaming and Interconnection is a reality now.

VoLTE is built upon underlying 3GPP principles including LTE and IMS. VoLTE has similar characteristics like Vonage. It is more than just Voice over IP (VoIP). The IP networks are mostly managed with MPLS or other layer 2/3 techniques.

Rather than connecting an legacy circuit switched call, VoLTE calls are transmitted over LTE EPC and IMS networks using SIP as the signaling protocol.

VoLTE can use "HD Voice" or Rich Communication Services (RCS) will merge picture and video messaging.

RCS (Rich Communication Services) will deliver high quality voice and SMS by providing them with instant messaging or chat, live video and file sharing across any mobile device, on any network.  

True value of LTE (Long Term Evolution) Technology

Benefits of LTE

LTE (Long Term Evolution) is more spectral efficient, scalable and makes excellent usage of the spectrum.  Faster data rates, low latency, lower  transport costs and flat network architecture are other benefits.


The objective for LTE was to provide scalable high performance Radio Access Network (RAN) technology that offers nomadic, pedestrian mobility and full vehicular speed mobility.  Because of scalable bandwidth, operators will be able to easily migrate their networks and users from HSPA to LTE over time

LTE and LTE-Advanced, the latest 3GPP evolution RAN  will significantly improve network performance with peak data rates up to 300Mbps in the 20 MHz allocation scheme.




LTE-Advanced will introduce spectrum aggregation up to 100MHz and data rate up to 1Gbps downlink. With cell-capacity with up to 200 users per cell in 5 MHz allocation, this technology will bring great benefits to users and the operators.

LTE Training - Long Term Evolution (LTE) Training

Long Term Evolution (LTE) Learning

by ADMIN on FEBRUARY 18, 2013

One interesting facet of the convergence of mobile broadband and IP world is this new emerging LTE , Long Term Evolution, technology that will take the place of traditional mobile networks globally in the near future. TONEX actually started its LTE Training in 2004 , which really has surprised many people. It’s better to learn LTE, VoLTE, LTE RF Engineering and LTE-Advanced now and become an expert in this field so you can have a leg up on the rest of the engineers when it’s time to get a job.

We also offer a LTE RF Planning and Engineering course where it teaches you LTE propagation modeling, planing and RF Optimization. It might seem complicated to you but these courses look pretty good.  The bottom line is that knowing LTE as a project manager, or being a LTE systems engineer can make for a very lucrative career choice.  

LTE-Advanced Training Course

LTE-Advanced Training Course by TONEX: The true 4G based on ITU's  IMT-Advanced

TONEX Advanced-LTE training 2-day course is a unique crash course, bootcamp style that covers all aspects of  Advanced-LTE

Topics Included: Motivation behind LTE-advanced, major new key features such as as carrier aggregation, enhanced advanced antenna techniques for the DL/ UL, relay repeaters, and coordinated multipoint (CoMP) transmission and reception, requirements, network architecture, security, coverage, performance, required enhancements in LTE and migration strategies for LTE-Advanced deployment.

 


LTE–Advanced provides higher bitrates in a cost efficient way and, at the same time, completely fulfill the requirements set by ITU for IMT Advanced, also referred to as 4G.
4G LTE or LTE-Advanced was specified initially in Release 10 of the 3GPP standard in 2010.

LTE-Advanced supports wider frequency bandwidths (40MHz or more). Carrier aggregation was introduced in Release 10 to allow combining multiple pipelines together to create a larger single pipeline (provide backward compatibility with LTE ) . This is very similar to 802.11n and 802.11ac/ad or concept of channel bonding for wireline broadband networks.