I recently read the rather interesting announcement from NTT DoCoMo where they demonstrated LTE running over the unlicensed 5GHz band. They report a 60% increase in spectral efficiency over IEEE 802.11n Wi-Fi. The article also noticed that LTE-U is now referred to as Licensed-Assisted Access using LTE or LAA-LTE. This caused me to pause, and think about several things.
The comparison between LAA-LTE and Wi-Fi is not (and should not be) about spectral efficiency. Rather it is about several other factors:
- A robust network with a diverse client ecosystem (does anybody reading this blog own an IP device without Wi-Fi? How many of those devices contain LTE? How many are Wi-Fi only, without any SIM card?)
- The ability to support neutral host deployments (are stadium owners willing to deploy LAA-LTE if it only supports one operator?)
- The ability to co-exist in a multi-operator environment (how would LAA-LTE operate in dense environments when it has to co-exist with LAA-LTE APs from other operators?)
- The ability to co-exist in a multi-technology environment (would if it adversely affects the existing and extensive deployments of Wi-Fi infrastructure?)
- A number of Mobile operators have agreements with Wi-Fi providers for offloading cellular traffic (how does one enable such a scenario with LAA-LTE?)
And if you really want to talk about speeds and feeds, it’s interesting that the test was done against 802.11n, when 802.11ac is now widely available, providing speeds that exceed LTE-Advanced speeds of 1 Gbps (IEEE 802.11 ac Wave 1 provides maximum speed of 1.3 Gbps and Wave 2 provides maximum speed of 3.5 Gbps). It’s also important to note that LAA-LTE has not been defined yet and so it’s very likely that the LAA-LTE implementation tested here does not have the politeness mechanisms required in certain regulatory domains like Europe. These mechanisms allow fair usage of the unlicensed spectrum by allowing other users an opportunity to transmit and share the spectrum. These mechanisms already integrated into Wi-Fi will add additional overhead to LAA-LTE that will reduce its spectral efficiency, a factor that needs to be taken into account in any comparison.
Hype is interesting, but Read More »
Tags: LAA-LTE, LTE, LTE-U, mobility, Service Provider, wifi
Many network engineers recall the iOS7 update on September 18, 2013 as one of the most historic download days of their network’s history. All the more reason for us in the wireless world who anxiously anticipated the September 17 release of iOS8.
We asked a few of our customers to monitor the effect of the software release on their networks and the results for the first two days are in. Those in the education and healthcare space in particular are filled with early adopters of WiFi technology and devices, and eager to get their hands on the latest updates.
Joe Rogers, Associate Network Director at the University of South Florida shared this picture with us from 1pm September 17th, showing 1 Gbps more traffic than he would normally see at this time of day:
Another customer, Greg Sawyer, Manager of Infrastructure Services, shared this picture of the iOS8 effect on his network at the UNSW Australia.
He noted that his experience handling the release this year felt smoother than last year, despite the new peak internet download of 4.65 Gbps and 21Tb downloaded for the day! Not too surprising when considering that there were 27,000 concurrent connections on the wireless network and approximately 60% of those being Apple devices.
How should organizations be considering and handling these network spikes? I sat down with Cisco technical leaders Matt MacPherson and Chris Spain (@Spain_Chris) to get some insight on the effect of big updates like iOS8 on the wireless network. Here are some of the highlights of what we discussed:
The World We Live In
The truth is, more and more services are being moved to the cloud—a cloud that will push updates to millions & in the future billions of users and devices on our networks. Read More »
Tags: #80211ac, 11ac, 8.0, 802.11, 802.11ac, 802.11n, aireOS, Akamai, Android, App, Apple, application, bandwidth, best practice, Burst, business-critical, byod, byte, cache, Cisco, cloud, control, design, device, engineer, fix, Gbps, guide, infrastructure, internet, IOS, ios8, iphone, iphone 6, iphone6, IT admin, IT administration, itunes, mbps, mixpanel, mobile, mobility, network, operation system, OS, patch, peak, pervasive, policy, protocol, protocol pack 11, release, secure, security, services, signal, TB, technology, throughput, unsw, update, USF, visibility, WAN, wi-fi, wide area network, wifi, wireless
Norway’s longest running IT conference , IT-tinget concluded yesterday in the beautiful town of Tonsberg about an hour south of Oslo.
The event has been running for 31 years now and is organized and run by Cisco’s partner Evry.
This years theme is “#UserIsKing” , and Cisco hosted a special Retail Break out session along with Evry where Customer Experience and Engagement were the main focus. Read More »
Tags: #userisking, analytics, Cisco, cmx, Conference, customer, device, End User, engage, engagement, evry, experience, innovation, innovative, IT, IT-tinget, lbs, location, location-based, marketplace, mobile, mobility, Norway, retail, scandinavia, service, services, smartphone, technology, user, wi-fi, wifi, wireless
We’ve all been there, seen it, and even done it ourselves. We’re talking or texting on our phones while walking around the isles of our favorite store. Half the time people are in a venue they’re more fixated on what’s happening on their phone than what’s around them. What about those brick and mortars around us? How can they get our attention when our noses are in our devices?
The way people use their devices may never change, but the way in which businesses interact with their mobile phone loving customers can. Cisco’s Customer Mobile Experiences (CMX) solution provides businesses with the technology to leverage the mobile trend to their advantage by serving smartphone carrying visitors, guests, passengers, shoppers and students location-based services to get their attention.
Among these tools is a valuable set of API that can unlock location-based services, such as indoor navigation and push notifications to create a more personalized mobile experience. Read More »
Tags: App, application, business, cmx, connect, connected mobile experiences, customer, Detect, device, mobile, mobility, network, notification, personalize, phone, service, services, Smart phone, solution, st. olav, technology, topcoder, wayfinding, wi-fi, wifi, wireless, wlan
Today’s networks are an essential part of business, education, government, and home communications. Many residential, business, and mobile Internet Protocol (IP) networking trends are being driven largely by the combination of video, social networking, and advanced collaboration applications, termed “visual networking.” In fact, total Internet traffic has experienced dramatic growth in the past decade alone. Take a look at this interactive infographic from Cisco that shows key trends and forecasts the growth of global IP traffic from 2013 to 2018. You can choose a category and filter the geographic regions in the map to view the impact of global IP traffic. According to Cisco’s Visual Networking Index (VNI), globally, there will be 20.6 billion networked devices by 2018, up from 12.4 billion in 2013. VNI is part of Cisco’s ongoing effort to forecast and analyze the growth and use of IP networks worldwide. VNI also forecasts that global Internet Protocol (IP) traffic will increase nearly three-fold over the next five years due to more Internet users and devices, faster broadband speeds and increased video viewing. Global IP traffic for fixed and mobile connections is expected to reach an annual run rate of 1.6 zettabytes – more than one and a half trillion gigabytes per year by 2018.
So who and what are responsible for the projected increase in overall internet traffic?
Read More »
Tags: broadband, Cisco, global ip traffic, Internet of Everything, IoE, ip traffic, M2M, Machine to Machine, Service Provider, visual networking index, vni, wi-fi, wifi, zettabyte