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SoC claims to deliver high Gigabit bandwidth

Posted: 21 Oct 2011     Print Version  Bookmark and Share

Keywords:SoC  Gigabit bandwidth  integrated base band modem 

Broadcom unveils the BCM85620 SoC that is touted as the first integrated base band modem and network processor in one chip designed to deliver 25 per cent more capacity to achieve 1.25Gbps for 4G/LTE microwave backhaul enabling radio-optimised high speed traffic delivery.

Broadcom BCM85620

With unparalleled integration, the BCM85620 combines the functionality of up to ten off-the-shelf application-specific standard parts (ASSPs) into one SoC, dramatically lowering power consumption and system costs.

The BCM85620 marks the successful integration of Provigent within just six months post acquisition.

As the number of mobile users and use of multimedia services, such as streaming video, continues to rise mobile operators are investing in next generation mobile backhaul networks that enable mobile operators to meet the performance and service expectations of consumers. In order to manage this massive growth in wireless traffic and evolution of 4G/LTE networks, carriers are faced with the challenge of backhauling data from the cell sites to the core network.

With enhanced radio performance and advanced networking capabilities, the BCM85620 offers radio-optimised traffic delivery, including robust clock delivery over packet networks needed for network synchronisation.

Market drivers include global mobile backhaul expenditures are expected to reach Rs.35,874.44 crore ($8 billion) by 2014; Ethernet is expected to be the dominant carrier technology by 2014 in mobile backhaul; Microwave backhaul is the most prevalent technology used in the global mobile backhaul market with >55 per cent of all backhaul connections.

The BCM85620 is claimed as industry's highest capacity (1024QAM modulation) SoC that delivers Gigabit and beyond performance. Other key features of BCM85620 include packet fragmentation and header compression combined with ACM-aware traffic management that enables radio-optimised networking; robust adaptive code and modulation (ACM) technology automatically provisions bandwidth; extreme phase noise tolerance that reduces system cost and improves spectral efficiency/system gain; synchronisation over packet network—SyncE and 1588 support over ACM and protection switching; low latency for 4G networks and integrated carrier grade network processor.

Dan Charash, senior director & general manager, Microwave, Broadcom Corp. said, "The transition to 4G and LTE networks continues to drive the need for higher capacity and packet traffic in mobile backhaul networks. With the industry's highest level of integration and Gigabit and beyond performance, the BCM85620 allows system vendors to seamlessly and cost effectively migrate existing networks to 4G/LTE. The introduction of our latest innovation within just six months of acquiring Provigent is a testament to Broadcom's ability to successfully integrate acquired technologies and rapidly introduce next generation products."

"The mobile backhaul space is undergoing major changes. The growing capacity demand and the shift from voice to data services are driving mobile backhaul networks to high capacity IP/Ethernet connections. The evolution to 4G/LTE networks will require even higher capacities and more cell site connections. Microwave currently represents 55 per cent of physical backhaul connections. Innovation in this space ensures that microwave will retain its prominent position as the backhaul solution of choice," said Michael Howard, Co-founder and principal analyst, Carrier Networks, Infonetics.

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