Ed serves as Senior Analyst for Mobile Access Infrastructure in the Current Analysis Service Provider Infrastructure Group. He focuses on tracking, analyzing and reporting on developments impacting mobile infrastructure and mobile networking: 2G and 3G RAN and packet core along with, LTE, metro-scale Wi-Fi and WiMAX.
AT&T wasn’t very candid in explaining how its latest lab project works, a twist on broadband over powerline.
Multiple forces might have given the operator reason to announce AirGig now, before it could say much.
AT&T’s announcement last week of a new technology dubbed AirGig was striking for a few reasons. One was the novelty of the technology itself, which enigmatically promised to transmit wireless signals around power lines rather than through them, putting a new spin on old broadband-over-powerline tech concepts and posing the possibility of self-backhauling mesh networks deployed along the power grid that could deliver 4G and 5G services to the home.
Another thing that was striking about AT&T’s announcement of AirGig was just how little about it the company was at liberty to discuss. For starters, how does the technology work, exactly? AT&T declined to elaborate much. How far could these networks (which use millimeter waves without necessarily being restricted to them and provide both access and backhaul) extend from a wireline backhaul source? It wouldn’t say. How would they be powered if, as AT&T offered, they wouldn’t need to physically connect to the power grid? Inductive (wireless) power transmission is one approach, the company said, but left it at that.
During my presentation, I listed some of the organizations that are helping to develop 5G technologies and standards. You know, industry groups (5GPPP, METIS, the 5G Forum, NGMN, IMT-2020, etc.), major universities (Harvard, Stanford, Cambridge, Shanghai Jiao Tong University, etc.), announced collaborations between specific equipment vendors and operators (Ericsson and LG U+, Huawei and Telefonica, Nokia and du, etc.).
I also made the point that achieving a certain level of unity on 5G is crucial for its stakeholders because no one wants to emulate the global division of 3G technologies that split the world into CDMA and WCDMA.
C-RAN’s adoption is likely to grow significantly soon, thanks in part to evolutions in the underlying technologies.
Long term, future RANs will see a dynamic mix of centralized and distributed functions.
In 2016, we’re likely to hear even more about C-RAN than we already have. It’s not a new concept, and plenty of operators have deployed mobile access network architectures in which the baseband processing units are centralized, stacked or pooled, linked to remote radio units elsewhere. As portions of the network become increasingly virtualized, baseband processing will become virtualized, too – thus, centralized RAN will evolve into cloud RAN. This won’t happen everywhere, of course, but its use is likely to spread thanks in part to some significant advancements in C-RAN technology coming soon. Continue reading “C-RAN Is About to Get More Serious, but No, the RAN Will Never Disappear into the Cloud”→
Recent trends illustrate how influential WiFi remains in the enterprise small-cell space.
Small-cell vendors must align their view of technologies, partners and competitors with this dynamic.
As RAN vendors continue with an attempt to kick in the door to the enterprise small-cell market, one of the primary dynamics influencing these efforts is WiFi’s dominance in enterprise environs. This is largely what led Cisco to use its WiFi market footprint to compete in the small-cell space, of course. But, even in late 2015, after years of driving the enterprise small-cell value proposition, some players are shifting their thinking toward an even greater respect for the importance of WiFi in this business. For example: Continue reading “WiFi Continues to Shape the Enterprise Small-Cell Space”→