Whether the local police department responding to a burglary call or firefighters putting out a blaze in the historic district, first responders across America rely on mission-critical communications infrastructure to provide timely, reliable and secure voice, video and data services to do the job.
In our data-infused, mobile and Internet-connected world, public safety agencies have come to realize that upgrading infrastructure to IP/MPLS technology is the best way to lower costs and provide rich services in a scalable way, while enabling effective communication with peer local, state and federal organizations. Access to high volumes of data and the ability to share it with key stakeholders allows public safety professionals to make rapid decisions and speed up actions.
IP/MPLS and Microwave: Better Together
At Aviat Networks, we have blazed a path to IP in privately operated networks with our hybrid IP/TDM microwave radios, which efficiently converge packet-based traffic with legacy TDM. This solution gives public safety network operators a concurrence of technology while migration decisions and investments are made.
Recently, Aviat introduced the term “microwave routing” with the launch of its CTR platform. At its core, microwave routing is about integrating IP/MPLS capability into the microwave layer to increase transport intelligence while decreasing cost and complexity. As part of its portfolio, Aviat features the highly resilient CTR 8611 microwave router, which has been designed to meet the needs of public safety agencies today and tomorrow—addressing a future that is sure to include LTE/LTE-Advanced technology and a vast new buildout of advanced networking infrastructure ushered in by the FirstNet initiative.
IP/MPLS in Action
One example of IP/MPLS in public safety networks can be found in the Northeastern United States, where a major statewide public safety agency recently adopted IP/MPLS functionality in its backhaul. This deployment is based on the CTR 8611 and ProVision network management system (NMS). ProVision, with its new INM package, provides a smarter end-to-end, point-and-click IP/MPLS service management solution.
Armed with these tools, this public safety agency turned up a complete IP/MPLS solution for its mission-critical networks, which includes microwave radios, microwave routers and network management. Aviat supports the agency with turnkey services to simplify the network design, install and commission equipment and provide post-deployment support.
IP/MPLS for Everyone
Since 1999, IP/MPLS has been deployed in the mainstream of networking. Until now, its implementation has largely been the domain of wireline telephone companies and more recently mobile operators. However, we now see private network operators adopt IP/MPLS technology because of its superiority and economic benefits. Although IP/MPLS is not something that is perceptible by the ordinary citizen, its positive impact on our daily lives is significant. We Heart IP/MPLS!
North America Marketing
Mobile industry enthusiasts have been warned at length about the proliferation of LTE devices forcing backhaul to become markedly different than it is today, especially in terms of capacity delivery. Other challenges for the service provider include rising cost of capital, increasing network complexity and the ability to gracefully accommodate future technology shifts such as SDN, NFV and SON—Software-Defined Networking, Network Function Virtualization, Self-Optimizing Networks. A Layer 3 IP/MPLS topology has addressed many of these goals so far in the aggregation and at the service provider edge of the network. MPLS, Multiprotocol Label Switching, in particular, has offered converged service delivery, fast failure recovery and advanced Quality of Service.
So what’s next? The fundamental transformation needed next is at the cell site, which is evolving from its basic role of housing a base station to the new reality of enhanced service delivery hub. Why is this important? It’s simple: MPLS allows operators to offer enhanced revenue-generating services while simultaneously enriching the consumer experience and feeding an entire mobile ecosystem.
Battling rising costs by monetizing new services
The day of reckoning for operators is predicted to come with the confluence of rising costs and shrinking ARPUs, leading to unsustainable losses. Additional revenue sources are the key to profitability, provided they could be enabled swiftly and seamlessly. Fortunately, MPLS is available as a steppingstone to new services. As high capacity and scale infiltrate the end-to-end network, the traditional macro site can be considered the new point-of-presence for revenue generation. MPLS-enabled services include Layer 3 VPNs (L3VPN), Layer 2 VPNs (L2VPN) and Virtual Private LAN Service (VPLS). L3 VPNs are attractive to customers (e.g. enterprises, government) who want to leverage the service provider’s technical expertise to ensure efficient site-to-site routing. L2 VPNs are attractive to customers who want complete control of their own routing. Finally, VPLS makes the service provider’s network look like a single Ethernet switch from the customer’s viewpoint, effectively making their WAN look just like their local campus.
For the mobile provider, the backhaul topology changes have already started to take shape, with Small Cell as one example of how cell sites will evolve, essentially becoming aggregation nodes as small cells (i.e., cloud RAN, IP, wifi) are added to network. This leads to a tangled web of complexity in a modern, heterogeneous network.
Technology flexibility to alleviate network complexity
To date, MPLS-enabled routers are the only proven solution to cost effectively converge multi-service interfaces onto a single low cost IP transport platform. The multitude of devices at the cell site includes legacy interfaces such as TDM, ATM and even Frame Relay. With its ability to decouple protocols from their physical transport medium, MPLS provides a single converged transport solution for all access technologies. As MPLS is generally deployed in core networks, adding it in the access is just an extension of the existing network transport architecture.
Beyond multiprotocol capability, the current hype of SDN, NFV and SON ushers in new challenges that are intended to optimize, virtualize and control the network—albeit with a significant operational learning curve. The capabilities of MPLS align with each of these goals, when they come. MPLS enables vendors to offer solutions that simplify management and protocols, provides fast adaptation for new services and eases the burden on personnel for general network turnup and maintenance—including tasks such as new base station provisioning, debugging, troubleshooting and performance monitoring
Benefits of IP/MPLS at the cell site
The benefits of IP/MPLS at the cell site are numerous, especially for LTE and LTE-A deployments. When compared to flat Carrier Ethernet networks, routers can scale to vast numbers of nodes. MPLS enables a scalable X2 network design. (X2 is the LTE interface used for Handover, Load Management, Mobility Optimization, Network Optimization and LTE-Advanced CoMP eNodeB coordination.) With eNodeBs on different subnets, routing is required between Layer 2 domains for a complete X2 solution.
MPLS-Traffic Engineering (MPLS-TE) provides operators with capability to steer traffic across backhaul networks, thereby increasing overall capacity and lowering latency for latency sensitive traffic flows—this is an important requirement for LTE-Advanced. MPLS-TE can increase backhaul capacity by 50 percent when compared to L2 networks.
How to Add IP/MPLS to the cell site
Introduction of IP/MPLS into the access network can be easily accomplished with networking platforms such as the Aviat CTR microwave router. The CTR 8540 is the industry’s first purpose-built microwave router—a unique concept that merges the functionality of an indoor microwave radio and a cell site router into an integrated solution, simplifying IP/MPLS deployments and creating a better performing network. The Aviat CTR helps operators avoid the investment of expensive standalone routers, translating to overall fewer boxes to buy, deploy and maintain. See more information on Aviat’s IP/MPLS solutions.
Senior Manager of Marketing