December 16th, 2011
The Broadband Forum has introduced a new specification to address the use of MPLS in the mobile backhaul network as they move from TDM to packet-based wireless backhaul.
With the “Technical Specification for MPLS in Mobile Backhaul Networks,” otherwise known as TR-221, both wholesale carriers and their respective wireless operator customers will have a means to transport wireless traffic in the access and aggregation networks, including IP, TDM, ATM and Ethernet.
Specifically, TR-221 defines the global requirements of MPLS technologies in mobile backhaul networks for encapsulation, signaling and routing, QoS, Operations Administration and Maintenance (OAM), resiliency, security, and synchronization.
In addition, it takes into consideration both traditional voice and data and multimedia broadcast and multicast services that users will access over their handheld devices from the wireless network. New Backhaul Standards
Tags: backhaul, Broadband Forum
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December 12th, 2011
Cambridge, UK-based ip.access, which supplies femtocell and picocell solutions to mobile operators worldwide, has raised $15 million in new funding from some of its previous investors.
The financing round comes from Intel Capital, Cisco, Qualcomm, Amadeus Capital Partners, Rothschild & Cie Gestion, Scottish Equity Partners and TE Connectivity.
Tags: backhaul, small cell
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December 4th, 2011
Where it comes to small mobile cell sites, which will, by definition, cover small areas primarily in high-traffic areas, backhaul costs will have to scale to match the large number of sites, and the relatively small number of customers served at any single site.That suggests wireless backhaul will be important, for cost reasons. There are three main categories of contending wireless backhaul solutions, many will note, including:
1. Line-of-sight (LOS) microwave systems typically operating in the 10 GHz – 42 GHz bands.
2. “E-band” LOS solutions that operate in the 60 GHz band (or in some cases at 80 GHz).
3. Non-line-of-sight (NLOS) utilizing sub 6 GHz licensed TDD spectrum. The Options for Small Cell Wireless Backhaul
In some cases, fixed network solutions might also be affordable, though it is unikely a fiber connection often will fall into that category.
For that reason, a new approach to small-cell backhaul is required to bring down the per-megabit costs. Small cells are forcing vendors to rethink wireless backhaul for an environment where most cell locations are not in line of site with each other or with aggregation points. That means the traditional approach of relaying traffic from one tower to another before handing off to the fixed backhaul network is not possible.
Also, new levels of cost optimization are needed, as the total cost of deploying dense small cell networks would be excessive, compared to other bandwidth approaches, without a new lower cost parameters. Small cell backhaul costs
Tags: mobile backhaul, small cell backhaul
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