Ericsson and China Mobile Make Dual Mode HD VoLTE Call Based on Multi-mode Chipsets

Published on: 26th Feb 2013

­Ericsson says that it supported China Mobile in demonstrating the world's first dual mode HD voice over LTE (VoLTE) call between TD-LTE and LTE FDD based on ST-Ericsson's multimode modem and Renesas Mobile' quad-mode chipsets during the 2013 Mobile World Congress (MWC) in Barcelona.

The demonstration further paves the way for the ultimate commercial launch of Voice over TD-LTE.

By deploying communication services over an all-IP network, like LTE, the opportunity opens up to evolve the voice business and launch new services such as HD voice and video calling, with telecom grade quality. At present VoLTE has been put into commercial service with several operators, and the demand for TD-LTE voice services is also growing, not only because the coming expanded deployment of TD-LTE networks, but also the realization of TD-LTE voice will allow TD-LTE operators to free up their 2G and 3G frequency bands.

The demonstration also achieved HD quality TD-LTE voice service. As of January 2013, operators in 45 countries have launched HD voice over WCDMA/GSM/LTE in 61 live networks, supported by mainstream devices.

In December 2012, Ericsson assisted China Mobile Hong Kong in demonstrating the world's first live, seamless, bi-directional LTE TDD/FDD interworking on the converged LTE TDD/FDD network.

The convergence of TD-LTE and LTE FDD enables operators to maximize networks based upon traffic demands and spectrum availability. Convergence provides an operator the flexibility to deploy LTE FDD and LTE TDD throughout the network to ensure adequate coverage, and then add additional LTE in those areas where additional capacity is needed.

With convergence, the TDD/FDD network can be operated as a single platform.

 

Tags: [volte]  [china mobile]  [ericsson]  [China]