Posts tagged ‘QoS’

5 Ways IPX is making LTE a global success

This guest blog was written by Jay Jayasimha, Chief Technology Innovation Officer, Cataleya 

Jay Jaysimha

LTE needs IPX to be a truly global success. When domestic LTE deployments are supported by global IPX-enabled networks, it changes what is possible in the mobile market. Today, we’ve seen the development of LTE networks on a local level but for 4G services to mature and realise their full potential LTE needs to be supported with robust, reliable and intelligent IPX-enabled networks.

There will be 450 commercial LTE networks deployed by the end of 2015, according to The Global Mobile Suppliers Association (GSA). Close to 50% of subscribers in Q4 2014 were in Asia-Pacific with North America and Europe trailing close behind.

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PCRF: A Vital Component in the Service Provider’s Network

Guest blog written by Udayabhanu Parida, Product Manager, Simulators, Wireless Division, EXFO

Guest blog written by Udayabhanu Parida, Product Manager, Simulators, Wireless Division, EXFO

With the wireless industry moving toward a unified IP network carrying both voice and data traffic, policy and charging rules function (PCRF) will be taking on an increasingly important role in managing the service provider’s network resources and monetization of service usage. And, with the planned adoption of Voice over LTE (VoLTE), PCRF will be playing an increasingly vital role in the network.

A key component of building a fast and reliable wireless network includes extensive testing of the network elements (NEs), in this case PCRF in the test labs before deployment. In test labs, PCRF is normally tested with other real NEs, such as PDN GW. Such a test setup does not fully exercise the functionality, performance or capacity of PCRF, because PCRF not only communicates with single PDN GW, but multiple PDN GWs. PCRF also communicates with policy control enforcement function (PCEF), such as deep-packet-inspection (DPI), online-charging-system (OCS), and offline-charging-system (OFCS) functions, as well as other PCRFs (visited), call session control function (CSCF), serving gateway (SGW), gateway GPRS support node (GGSN), traffic detection function (TDF) and more.

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LTE – beyond technology; a catalyst for value creation (Guest post by Wing K. Lee, CEO, YTL Communications)

Wing K. Lee is CEO at YTL Communications in Malaysia

Wing K. Lee is CEO at YTL Communications in Malaysia

The velocity in how the world creates value has hastened considerably. We spent millennia as an agrarian economy, then came the industrial age that refines these commodities into manufactured goods. We have since evolved into the service economy and most will agree that we are now onto the experiential economy.
To appreciate what that means to us in the telecommunications business, perhaps we can take a moment to follow the journey of the humble coffee beans.

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Landscaping QoE in a new mobile world

This guest post was written by John Twohig, Solutions Architect at Eirteic

John is a Solutions Architect at Eirteic

John is a Solutions Architect at Eirteic

Today, Mobile Service Providers find themselves struggling to cope with the increasing demand for capacity whilst maintaining a high level of customer experience. Trying to find the most flexible and cost-effective infrastructure to support next generation services whilst also attempting to reduce customer churn by providing adequate customer level Quality of Experience (QoE) & Quality of Service (QoS) can be difficult to achieve. Essentially, Service Providers are caught between a rock and a hard place.

Subscriber level QoE is a subjective matter that is a balancing act; there are a number of factors which need to be considered:

  • Localised low signal quality
  • Numbers of connections using the network in a particular area
  • The performance of a particular mobile handset
  • Download bitrate
  • Resolution and encoding of video content
  • Responsiveness of mobile or web based applications
  • User service plans

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Professional testing is key in ensuring high QoE for VoLTE

This guest blog post was written by Kai Ojala, CTO, Anite Network Testing

The requirement for VoLTE is to offer high-quality voice calls and video calls, which as a baseline requires wide LTE coverage. LTE networks fulfill this aspect – especially lower carrier frequencies are deployed globally (e.g. 700 and 800 MHz frequency bands). Operators will benefit from customers switching to VoLTE services by harmonizing voice services and getting better capacity out of the spectrum.
Voice calls in LTE networks can be handled using Circuit Switched Fallback (CSFB) and Voice over LTE (VoLTE). CSFB provides a mechanism to transfer an initiated voice call to legacy circuit-switched networks. VoLTE, on the other hand, is a fully packet switched technology which uses Voice over IP (VoIP) technologies. With the SR-VCC functionality voice calls made with VoLTE can be switched over to legacy networks when the user moves out of the LTE network coverage.
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Putting the pieces in place to make VoLTE work

Eyal Amit, Product Marketing Manager, Amdocs

Eyal Amit, Product Marketing Manager, Amdocs

This post is by Eyal Amit, Product Marketing Manager, Amdocs

There are over 300 LTE deployments around the world, each promising a better, faster and more engaging connected mobile experience. While LTE has brought great advancements with regards to fast data speeds, HD video availability, mobile shopping and gaming, by and large it has not lived up to the hype on voice.

Voice over LTE, or VoLTE should mean conversations in high definition, crystal clear video calls, and easy transitions into text messaging. Consumers should be able to see which of their contacts are available and which aren’t through their contact list, not through a voice message on the other end of the line. Mobile phones were originally designed to facilitate talk, so why have only under seven per cent of all LTE Service providers begun offering VoLTE services to their customers?

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Interview: “Sales and marketing director for Samsung Networks Europe:“The ‘Best LTE RAN Product’ award is a very prestigious and is a testimony to our innovation success.”

sales and marketing director for Samsung Networks Europe

sales and marketing director for Samsung Networks Europe

Following the successful LTE Awards 2013, we speak to Mark Thompson, sales and marketing director for Samsung Networks Europe, winners in the Best LTE RAN Product category.

Tell us more about your entry for the LTE Award 2013

Samsung LTE solutions are focused on facilitating and supporting media delivery networks. Our industry-leading portfolio of RAN solutions is based on the concept of Telecom and IT convergence. Smart LTE Networks, already commercialised in South Korea, is an LTE solution that leverages this concept to incorporate real-time radio scheduling, content caching and delivery, media broadcast and mobile computing over LTE networks.

Smart SON, one of the components of Smart LTE Networks, provides advanced network optimisation for all types of RAN: macro cell, femto cell and pico cell as well as Heterogeneous Networks. Unlike conventional SON, it optimises the network in near real-time, resulting in dramatic cost reduction and performance gains for mobile operators.

We hope to leverage the great platform provided by LTE World Summit, one of the largest LTE focused industry events, to share the success of our cutting-edge technologies with thousands of attendees across all domains.

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Mobile Operators Turn to Policy Vendors for Solution to One of their Biggest Problems

Ben McCafferty, VP EMEA, Volubill

Ben McCafferty, VP EMEA, Volubill

This post is by Ben McCafferty, VP EMEA, Volubill

By the end of 2016, research and analysis firm IDATE predicts that the number of global LTE subscriptions will reach 915 million. Right now, we’re barely over 100 million worldwide. As networks are inundated with rapidly increasing traffic volumes and quality of service (QoS) expectations from users, they’re looking to policy platforms for assistance.

It’s no secret that the expansion of 4G/LTE networks is being outpaced by the growing number of subscribers and their increasing demands for reliable and robust services. Mobile operators are working double time just to try and keep up. In the meantime, users will often find themselves traveling between coverage areas serviced by newer 4G/LTE networks and older, legacy 2G and 3G ones. This represents one of the biggest challenges facing mobile operators today.

While 4G/LTE networks have enough bandwidth to enable operators to offer voice and data services over the same technology stacks — we know this as Voice over LTE, or VoLTE — those older networks don’t. Instead, they separate voice and data into different streams. So, what happens when a subscriber is on a call and crosses over from a 4G network coverage area to one serviced by a legacy network? The answer: dropped calls, slowed or failed downloads, and a number of other inconveniences, any one of which could prompt customers to take their business elsewhere.

Policy vendors are tasked with evolving their technologies in order to help mobile operators offer high-quality coverage for both data and voice, without being tripped up every time a subscriber moves from a 4G coverage area to one running on an older analog technology. Subscribers don’t care if operators are in the midst of network transitions. They want 4G/LTE and the QoS they have come to expect with it. They don’t want to hear about legacy systems or complications. In their minds, if manufacturers are making so many 4G/LTE devices, networks must be able to support them without difficulty.

That’s exactly why mobile operators are relying on policy vendors to come up with a solution — one that makes the transition smoother, faster, and undetectable to their subscribers, all while maintaining the highest QoS possible. It’s a challenge that will require innovation and creativity — and the clock is ticking.

Next week, at LTE Africa, I will be speaking on policy vendors’ role in the success of VoLTE, as well as how operators can capitalise on the booming African mobile market.  Don’t forget to stop by and say hi!

The LTE Africa conference is taking place on the 9th-10th July 2013 in Cape Town, South Africa. Click here to download the brochure for the event.

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