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Cisco Introduces Visual Quality Experience Technology
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Providers using Cisco VQE can also detect video packet transmission errors resulting from copper line degradations and initiate corrective actions.
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Monday, December 04, 2006:
Cisco has extended the video delivery capabilities of its Internet Protocol Next-Generation Network (IP NGN) architecture with the introduction of Visual Quality Experience (VQE) technology. Designed to improve the quality of wireline IPTV services and subscribers' viewing experiences, VQE enables network-based rapid channel-change and video error repair -- two significant challenges in the development and delivery of wireline IPTV services.
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Based on industry standards, including Real-time Transport Control Protocol (RTCP) and Real-time Transport Protocol (RTP), VQE enables providers to prepare networks for the delivery of advanced video services, such as IPTV, by detecting and repairing packet loss on degraded lines. It further enables network-based rapid channel-change to enhance the viewing experience for IPTV subscribers. VQE will initially ship as an appliance and will soon be integrated into Cisco 7600 Series Routers.
The Cisco VQE rapid channel-change technology reduces channel-change times from several seconds to less than one second by initiating video streams less than 100 milliseconds after a request is made.
With this technology, a set-top box that detects packet loss may request a retransmission while holding the video sequence in queue. The network automatically repairs the error by transmitting the missing packet, which is re-sequenced by the set-top box without interruption. The entire error-repair cycle takes less than 100-milliseconds to complete, and is imperceptible to the viewer.
The ongoing error reporting in the Cisco VQE enables providers to troubleshoot entire service areas. By proactively diagnosing problems that threaten successful IPTV service delivery and implementing error repair via the network, providers help increase service acceptance, reduce customer complaints, avoid costly on-site repairs and reduce subscriber service cancellation.
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