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"Our experience demonstrates that using EPON for fiber access to cell towers will deliver the quality, bandwidth, and redundancy required for this rapidly growing application," said Jeffrey Stribling, VP of PLM and Customer Service for HCTA. He added, "Over the past two years our EPON solutions have supported the growth of wireless offerings for service providers in key U.S. markets."
According to recent data provided to the Metro Ethernet Forum by Infonetics Research, Inc., the business case for Ethernet in Mobile Backhaul applications is strong. A combination of 1) increasing bandwidth needs, 2) strong mobile subscriber growth, 3) cost advantages over PDH connectivity, and 4) the availability of Ethernet interfaces on new base stations, makes EPON a serious contender for mobile backhaul applications.
The Hitachi EPON solution leverages the benefits of mobile backhaul and business services on the same EPON network. Both applications require similar features. Hitachi's EPON equipment supports ITU-T Y.1731 service management, which focuses on end-to-end service performance. Critical features for voice traffic support provided by Y.1731 include frame delay, delay variation and frame loss measurements as well as monitoring and test capabilities for SLA verification. New features in the Hitachi EPON system enable up to 40% latency reduction compared to standard EPON. This capability was developed to support voice applications. The Hitachi EPON equipment is also MEF 9 and MEF 14 certified to insure network performance and interoperability among heterogeneous equipment.
Voice quality is another area where Hitachi EPON has proven successful. 3G and 4G mobile networks have significant buffering capabilities designed into the wireless equipment. However, 2.5G systems, by far the most numerous today, have no buffering and can tolerate approximately 8ms of one-way delay. Of this budget approximately .5ms is introduced by the EPON equipment. An additional 1.5ms is used for TDM-to-Ethernet conversion, leaving 6ms for the rest of the IP network. This EPON performance has proven to be just as reliable as T-1 PDH networks in transporting high quality voice traffic.
Resilience is another innovation in the Hitachi system. Path redundancy can be achieved using diversely routed fiber. When there are two fiber paths to the cell tower Hitachi's solution can provide "hitless" redundancy. Using Hitachi EPON in this configuration, with Circuit Emulation Services, there is no data loss or delay when switching from the primary to the secondary path. This feature is important in supporting strict SLAs.
"We know that Ethernet access is replacing T-1 access for SMB and Enterprise customers and believe that this situation will be replicated as Ethernet becomes common for mobile backhaul connectivity." Stribling continued, "Our EPON systems have the advanced software features that enable mobile backhaul and other new Ethernet applications."
Hitachi will be showing EPON and GPON platforms that support mobile backhaul and business services in booth #11123 at this year's Cable-Tec exhibition sponsored by the Society of Cable Telecommunications Engineers in Denver, Colorado, Oct 28th-30th.
ABOUT HITACHI
Hitachi Communication Technologies America, Inc., a subsidiary of Hitachi, Ltd., develops, manufactures and markets equipment for communications service providers in the Americas.
The company offers ultra high-speed optical networking equipment for long haul and metro applications, standards-compliant fiber-to-the-premises solutions, including EPON, GPON and RFoG systems, end-subscriber products such as home gateways/routers with open application platform support, and products and technologies for wireless network operators, including RAN/RF amplifier products and packet core solutions. For more information about Hitachi Communication Technologies America, please visit http://www.hitachi-cta.com.
Hitachi, Ltd., (NYSE:HIT / TSE: 6501), headquartered in Tokyo, Japan, is a leading global electronics company with approximately 400,000 employees worldwide. Fiscal 2008 (ended March 31, 2009) consolidated revenues totaled 10,000 billion yen ($102.0 billion). The company offers a wide range of systems, products and services in market sectors including information systems, electronic devices, power and industrial systems, consumer products, materials, logistics and financial services. For more information on Hitachi, please visit the company's website at http://www.hitachi.com.
SOURCE: Hitachi Communication Technologies America, Inc.
Hitachi Communication Technologies America, Inc. Mannix O'Connor, 408-845-5336 or 408-858-2451 (mobile) mannix@hitachi-cta.com
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