Welcome!

IoT User Interface Authors: Elizabeth White, Yakov Fain, John Basso, Derek Weeks, Asim Saddal

Blog Feed Post

Bringing LTE Indoors

by Andrew Mackay, Manager Mobile Solutions, Cisco Systems

 

As Long Term Evolution (LTE) networks continue to be deployed, it is becoming evident that matching the existing 3G coverage quality is going to be a challenge. This is reminiscent of the early days of 3G, when it took many years to get coverage matching underlying GSM. The higher carrier frequency (2.1GHz) and partial initial overlays left deep indoor coverage with “cold spots.”  This resulted in unreliable calls and increased battery consumption, which led many users to disable 3G out of frustration.  Over time, operators invested in more infill Broadband Telephony Services (BTS), wider use of In-building Systems (IBS) and repeaters, but indoor coverage was only really resolved when 3G on 850/900 MHz was deployed as a coverage “safety net.”

 

In Asia, the majority of LTE deployments are in the 1.8GHz band and higher. As a result, the typical LTE user drops back to 3G (850/900MHz) on a regular basis when deep indoors, commuting, or even inside their home. Initially, the user experience of dropping from LTE to 3G for data services may not be so irritating since voice is still falling back to 3G in the majority of networks. Plus, in many indoor scenarios, good Wi-Fi service is available to fill-in the missing bandwidth. But, ultimately, this is a branding issue: customers subscribing to a 4G service expect that level of service, not to see their service provider icon showing 3G. It becomes an even larger issue when you want to serve your subscriber real-time services over 4G, such-as voice and streaming video. So how do we avoid these service “pot-holes”?

 

potholes.png

“Warning: 3G pot-holes ahead.”

 

Many operators tell me that they will wait for sub-1GHz LTE coverage before considering wide spread VoLTE (Voice over LTE) deployment, but this may take years. Unlike in the US and Europe, the benefits of the digital dividend have yet to arrive at APAC with only live LTE APT700MHz deployments (in Taiwan so far). But even after the networks arrive it will take a while for the majority of devices to support the new band. 3G band refarming isn’t as easy as it sounds either; i.e., how do you refarm from carriers full of voice, which you can’t move to 4G until you have good VoLTE coverage? A classic “catch-22.”

 

One possible solution is to rely on Wi-Fi as a stop-gap measure for voice. Certainly, this approach has been in the press recently with operators 3 and EE in the UK discussing VoWiFi (Voice over Wi-Fi) strategies. In the case of EE, the role of using VoWiFi to plug LTE coverage holes was made explicit: “The aim of VoWiFi is to improve in-building coverage. Calls will be automatically routed via WiFi, for instance, in a user’s home or office, where there is an absence of cellular coverage.” VoWiFi received further attention with the announcement of iOS8 support for Wi-Fi calling on T-Mobile’s USA network.

 

wificalling.png

“iOS8 adds VoWiFi”

 

The challenge I foresee with VoWiFi is providing a “Carrier Grade” user experience. My concern is not with voice quality, which can be maintained in HD on an uncongested access point, but more the limited mobility. At present, as a Wi-Fi signal fades, the client hangs on to the connection despite quality dropping below what VoIP (Voice over IP) requires, before giving up and switching back to cellular. Another issue is variability of up-stream connectivity on different Wi-Fi networks accessed on a typical day. In the case of a work Wireless Local Area Network (WLAN), for example, Session Initiation Protocol (SIP) traffic might be blocked as per the enterprise policy. Both of these issues are critical in the case of terminating calls, where the user may be forced to stay put to complete the call or have the call go straight to voicemail.

I believe Wi-Fi will be an important stop-gap for poor LTE indoor coverage, but, eventually, it should take on the complementary role of picking up the non-real-time bandwidth workload. The ideal end game has to be to provide sufficient LTE coverage and capacity to match (or exceed) the current 3G user experience for real-time services, particularly voice. How this is achieved given the multiple RAN tools available (lower frequency bands, LTE Smallcells, Repeaters, Relays and IBS) becomes a question of time and the best TCO business case, and that’s a whole other topic.

 

To learn more about visit our LTE technologies page, check our Twitter feed @CiscoSPMobility or contact Jacqueline Chan ([email protected]) for more information.

Read the original blog entry...

More Stories By Deborah Strickland

The articles presented here are blog posts from members of our Service Provider Mobility community. Deborah Strickland is a Web and Social Media Program Manager at Cisco. Follow us on Twitter @CiscoSPMobility.

@CloudExpo Stories
Identity is in everything and customers are looking to their providers to ensure the security of their identities, transactions and data. With the increased reliance on cloud-based services, service providers must build security and trust into their offerings, adding value to customers and improving the user experience. Making identity, security and privacy easy for customers provides a unique advantage over the competition.
Qosmos has announced new milestones in the detection of encrypted traffic and in protocol signature coverage. Qosmos latest software can accurately classify traffic encrypted with SSL/TLS (e.g., Google, Facebook, WhatsApp), P2P traffic (e.g., BitTorrent, MuTorrent, Vuze), and Skype, while preserving the privacy of communication content. These new classification techniques mean that traffic optimization, policy enforcement, and user experience are largely unaffected by encryption. In respect wit...
SYS-CON Events announced today that StarNet Communications will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. StarNet Communications’ FastX is the industry first cloud-based remote X Windows emulator. Using standard Web browsers (FireFox, Chrome, Safari, etc.) users from around the world gain highly secure access to applications and data hosted on Linux-based servers in a central data center. ...
SYS-CON Events announced today that 910Telecom will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Housed in the classic Denver Gas & Electric Building, 910 15th St., 910Telecom is a carrier-neutral telecom hotel located in the heart of Denver. Adjacent to CenturyLink, AT&T, and Denver Main, 910Telecom offers connectivity to all major carriers, Internet service providers, Internet backbones and ...
Traditional on-premises data centers have long been the domain of modern data platforms like Apache Hadoop, meaning companies who build their business on public cloud were challenged to run Big Data processing and analytics at scale. But recent advancements in Hadoop performance, security, and most importantly cloud-native integrations, are giving organizations the ability to truly gain value from all their data. In his session at 19th Cloud Expo, David Tishgart, Director of Product Marketing ...
Almost two-thirds of companies either have or soon will have IoT as the backbone of their business in 2016. However, IoT is far more complex than most firms expected. How can you not get trapped in the pitfalls? In his session at @ThingsExpo, Tony Shan, a renowned visionary and thought leader, will introduce a holistic method of IoTification, which is the process of IoTifying the existing technology and business models to adopt and leverage IoT. He will drill down to the components in this fra...
StarNet Communications Corp has announced the addition of three Secure Remote Desktop modules to its flagship X-Win32 PC X server. The new modules enable X-Win32 to safely tunnel the remote desktops from Linux and Unix servers to the user’s PC over encrypted SSH. Traditionally, users of PC X servers deploy the XDMCP protocol to display remote desktop environments such as the Gnome and KDE desktops on Linux servers and the CDE environment on Solaris Unix machines. XDMCP is used primarily on comp...
DevOps at Cloud Expo – being held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA – announces that its Call for Papers is open. Born out of proven success in agile development, cloud computing, and process automation, DevOps is a macro trend you cannot afford to miss. From showcase success stories from early adopters and web-scale businesses, DevOps is expanding to organizations of all sizes, including the world's largest enterprises – and delivering real results. Am...
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devices - comp...
As the world moves toward more DevOps and Microservices, application deployment to the cloud ought to become a lot simpler. The Microservices architecture, which is the basis of many new age distributed systems such as OpenStack, NetFlix and so on, is at the heart of Cloud Foundry - a complete developer-oriented Platform as a Service (PaaS) that is IaaS agnostic and supports vCloud, OpenStack and AWS. Serverless computing is revolutionizing computing. In his session at 19th Cloud Expo, Raghav...
DevOps at Cloud Expo, taking place Nov 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long dev...
Data is the fuel that drives the machine learning algorithmic engines and ultimately provides the business value. In his session at Cloud Expo, Ed Featherston, a director and senior enterprise architect at Collaborative Consulting, will discuss the key considerations around quality, volume, timeliness, and pedigree that must be dealt with in order to properly fuel that engine.
There is growing need for data-driven applications and the need for digital platforms to build these apps. In his session at 19th Cloud Expo, Muddu Sudhakar, VP and GM of Security & IoT at Splunk, will cover different PaaS solutions and Big Data platforms that are available to build applications. In addition, AI and machine learning are creating new requirements that developers need in the building of next-gen apps. The next-generation digital platforms have some of the past platform needs a...
Fact: storage performance problems have only gotten more complicated, as applications not only have become largely virtualized, but also have moved to cloud-based infrastructures. Storage performance in virtualized environments isn’t just about IOPS anymore. Instead, you need to guarantee performance for individual VMs, helping applications maintain performance as the number of VMs continues to go up in real time. In his session at Cloud Expo, Dhiraj Sehgal, Product and Marketing at Tintri, wil...
19th Cloud Expo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterpri...
Enterprises have forever faced challenges surrounding the sharing of their intellectual property. Emerging cloud adoption has made it more compelling for enterprises to digitize their content, making them available over a wide variety of devices across the Internet. In his session at 19th Cloud Expo, Santosh Ahuja, Director of Architecture at Impiger Technologies, will introduce various mechanisms provided by cloud service providers today to manage and share digital content in a secure manner....
SYS-CON Events announced today that Hitrons Solutions will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Hitrons Solutions Inc. is distributor in the North American market for unique products and services of small and medium-size businesses, including cloud services and solutions, SEO marketing platforms, and mobile applications.
SYS-CON Events announced today that eCube Systems, a leading provider of middleware modernization, integration, and management solutions, will exhibit at @DevOpsSummit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. eCube Systems offers a family of middleware evolution products and services that maximize return on technology investment by leveraging existing technical equity to meet evolving business needs. ...
SYS-CON Events announced today Telecom Reseller has been named “Media Sponsor” of SYS-CON's 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
Pulzze Systems was happy to participate in such a premier event and thankful to be receiving the winning investment and global network support from G-Startup Worldwide. It is an exciting time for Pulzze to showcase the effectiveness of innovative technologies and enable them to make the world smarter and better. The reputable contest is held to identify promising startups around the globe that are assured to change the world through their innovative products and disruptive technologies. There w...