Doesn’t VoLTE interoperability work already?

ISMO MATILAINEN | April 26, 2016

article image
The answer is ‘yes’, but in order to ensure optimal user experience as VoLTE takes off, we all need to help push the case for VoLTE interoperability forward. The GSMA is doing its bit to help by pulling together an IR.92 extension to help operators put the necessary network and device parameters in place. The result will be faster interoperability testing and lower costs. Interoperability is vital if people are to be able to enjoy HD voice quality when using VoLTE, especially when there is inconsistent LTE coverage by national operators. And imagine the marketing kudos that an operator can gain by enabling its subscribers to make fast-connecting HD voice calls to friends on another operator’s network. At Mobile World Congress 2016, Nokia and Huawei demonstrated live network interoperability with several terminal vendors, including LG, Microsoft and Qualcom. The demo ran on Nokia and Huawei VoLTE networks outside Barcelona, using the network-to-network interface (NNI) between core networks. Although this was quite straightforward, a bigger challenge arose with the terminals. Even when a terminal worked well in both networks, this did not guarantee a successful call between networks. In some ways, such issues are not surprising given the complexities of the market in which there are many more terminal vendors than core vendors, all of whom need to interpret the standards. MWC also saw much interest in VoLTE roaming, which is not yet implemented globally. The GSMA provides common guidance and is addressing the issue of how operators should use the Local Breakout (LBO) or S8 Home Routing (S8 HR) model for VoLTE roaming. Discussion of this on our stand at MWC16 turned out to be inconclusive, but it currently looks like S8 HR has the edge, especially for national roaming. What about LBO – will it happen? Well, according to some operators it will take several years, which may be a long time to get global communication using VoLTE. We continue to see roaming technologies coming in phases – today we use CSFB for roaming and tomorrow we may see S8 HR being used. Rich Communications Service (RCS) may also play an interesting role here. I was pleased to see an impressive operator-hosted RCS demo at MWC 16 as it’s been talked about for years, but hasn’t yet won full industry support. But I often wonder why, because, as the RCS case showed, you don’t even need to consider the apps you communicate with, you simply use RCS for chat, file sharing and so on. Currently these functions are blocked because of various apps on individual devices.

Spotlight

RF-Works

RF-Works employs only the most experienced and highest level of engineering talent in network, wireless & mobility. RF-Works founders and management focus on customer success & satisfaction. RF-Works have a strict mandate to remain an engineering solution driven organization that believes customers come first. Our Customers enjoy "Wireless Done Right"...

OTHER ARTICLES

How Is SD-WAN The Fastest Moving Technology?

Article | February 10, 2020

A Software-defined Wide Area Network (SD-WAN) is an evolution of traditional WAN that allows businesses to leverage different networking options and transport services to connect users to applications. This includes the MPLS, LTE and broadband internet services. The SD-WAN is a better, more efficient means of supporting latency-sensitive applications. Enterprise customers can make use of this new network to increase network and application performance and/or lower costs, all of which contribute to improved user experience.

Read More

Accelerating the Evaluation and Deployment of uCPE-Based SD-WAN Solutions

Article | February 28, 2020

Unless you’ve been living on an Internet-free desert island for the past couple of years, it’s been hard to escape all the industry hype around Software-Defined Wide Area Networking (SD-WAN). While the business benefits of adopting SD-WAN are significant, there’s no denying the fact that evaluating and then deploying potential solutions is hard: typically, the solutions that deliver the best Return on Investment (ROI) involve products from multiple vendors, leading to complex integration and testing. A recently-announced software evaluation kit addresses these challenges, providing a pre-integrated open-source SD-WAN solution that runs on multiple white-box hardware platforms, all ready for a quick, efficient start to putting together a multi-vendor SD-WAN deployment.

Read More

Nokia expands WING with 5G IoT capabilities

Article | March 18, 2020

In a recent release, Nokia announced that it is evolving its Worldwide IoT Network Grid (WING) managed service to add 5G and edge capabilities. This upgrade reportedly facilitates operators in offering 5G IoT services without having to invest in global infrastructure. WING is designed to help operators capture early IoT market share without having to make investments in infrastructure because of a pay-as-you-go business model designed to allow the scaling of 5G IoT services faster and more cost-effectively. With Nokia WING, operators will be able to leverage new business models and tap into industries such as connected cars, critical public services, and real-time industrial monitoring and control, as well as remote healthcare, the company said. Nokia has invested in a 5G WING lab in Dallas, Texas, to which operators around the globe can connect and begin testing 5G IoT use cases.

Read More

You’ve Heard of 5G. Now Meet Wi-Fi 6.

Article | April 9, 2020

Got Wi-Fi problems? Future routers will at least be ready for the next pandemic. With much of the U.S. on home lockdown to stop the spread of the coronavirus, we’re all more aware than ever just how important Wi-Fi is — and it’s something many of us probably took for granted until now. Before the pandemic, most everyone was focused on 5G, the next big thing in mobile-internet technology, and the possibilities it would create for our smartphone-brandishing on-the-go lifestyles. The country has been in a hurry to build out new 5G wireless networks that are fast enough to do things such as download movies in the blink of an eye, and someday even power driverless cars. Except “on the go” and “drive” don’t mean much when we’re literally not going anywhere these days.

Read More

Spotlight

RF-Works

RF-Works employs only the most experienced and highest level of engineering talent in network, wireless & mobility. RF-Works founders and management focus on customer success & satisfaction. RF-Works have a strict mandate to remain an engineering solution driven organization that believes customers come first. Our Customers enjoy "Wireless Done Right"...

Events