PMC facilitates centralized wireless access network deployment

PMC facilitates centralized wireless access network deployment Hyphy Flex Reference Design delivers a carrier-grade OTN front-end backhaul solution for C-ran

A PMC that leads Big data connectivity, delivery, and storage, delivering innovative semiconductors and software solutions. The Company (NASDAQ: PMCS) recently released an OTN-based solution This scheme is suitable for the centralized baseband RAN (C-ran) architecture in LTE and lte-advanced systems. So far, the cumbersome delays and timing requirements have kept C-ran's deployment in a state of stagnation. PMC offers a solution that not only meets the latency requirements, but also provides a higher jitter level than the requirement of 75%, enabling Otn to implement a carrier-grade front-end backhaul solution. PMC's hyphy OTN processor is now widely deployed and customers can use the new reference design to upgrade their existing designs to quickly bring OTN-based front-end backhaul solutions to market.

To accommodate unprecedented growth in mobile traffic, the world's leading operators, including China Mobile, Korea Telecom, Japan Telecom, and France Telecom, are evolving their wireless access networks from distributed to centralized base stations to maximise their capex and opex investments while improving spectral efficiency. The centralized ran architecture reduces capex by reducing the cost of the base station and improving the utilization of the baseband. Opex reduction is achieved by reducing power consumption, site leasing, and maintenance costs. However, centralized baseband processing requires a large-capacity, high-reliability front-end backhaul network that transmits CPRI (common public wireless port) traffic between the base station antenna and the baseband processing resource over a distance of up to 20 km.

OTN is a standard protocol that enables multiple business data to be transmitted over a DWDM network. The solution provided by PMC is a breakthrough technology, demonstrating that OTN is thus able to provide low enough latency and jitter to fully meet the requirements of 3GPP for end-to-end latency and jitter. At the same time, the technology enables OTN to multiplex multiple CPRI signals to a single 10G wavelength, significantly reducing the number of expensive optical modules and fiber consumption.

"Addressing the challenges posed by wireless front-end backhaul networks is the key to C-ran's implementation," Ishiling, chief scientist at China Mobile's Research Institute for Wireless Technology, which is affiliated to the Chinese telecom company. China Mobile is looking for a more cost-effective, more scalable carrier-grade front-end backhaul solution. As a standard protocol for carrier-grade delivery, OTN is an attractive choice. PMC is one of our partners in the eco-circle. We are excited to see the PMC innovate and offer solutions to address the backhaul needs of the mobile front end. ”

Babak Samimi, vice president of marketing at PMC Corporate Communications, said, "in the C-ran architecture, distributed remote wireless devices have great potential to address the need for extended mobile capacity and improved coverage, but it also brings the problem of front-end backhaul networks, PMC now solves this problem effectively. PMC's new OTN-based mobile front-end backhaul solution not only meets the needs of operators, but also enables operators to build their own end-to-end OTN solutions and benefit from the ease of management and operational efficiencies that a centralized network can bring. ”

The reference design provided by PMC is based on its field-proven hyphy 20Gflex and hyphy 10Gflex devices, providing OTN management and protection capabilities for large-scale ran deployments. The new innovative software from PMC measures the uplink and Xia Lian delays and gives the corresponding reports and balances them to control the nanosecond level. The program can support up to 16 cpri links on a single wavelength, maximizing the efficiency of fiber resource utilization.

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Delivery information

The PMC's front-end backhaul reference design will be available in March 2015. The reference design includes software and firmware updates on the existing hyphy SDK, firmware binaries, FPGA sample code, and application notes. With this reference design, the existing hyphy 20g/10gflex design can be easily updated to provide support for CPRI front-end backhaul. For more information, please visit Http://www.pmcs.com/OTNfronthaul .

PMC enables centralized wireless access network deployment