Technology
Overview
LiveU is the leader in portable live video acquisition, contribution and management solutions.
LiveU Solutions address all demands for full HD or SD quality, resiliency, availability, mobility and sub-second latency in a highly innovative technological solution. Our core technology is based on cutting-edge adaptive algorithms which combine cellular communications and video encoding.

LiveU holds several patents for its Remote Transmission System.

The LiveU solution bonds up to 14 cellular (3G/4G – LTE/WiMAX) modems over multiple carriers, as well as multiple LAN and even BGAN satellite connections. This creates a reliable, broadband video uplink pipe over multiple narrow-band pipes. Using any camera, the fully-integrated self-powered compact unit provides video resolution ranging from CIF through D1 (SD) and up to 1080i HD. The bonded 3G/4G solution aggregates all data connections simultaneously to achieve high bandwidth and smooth transmission, even as bandwidth and signal levels change across the different connections.

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LiveU was the first company to integrate 4G LTE links into its cellular-bonding solutions. Since September 2010, LiveU mobile transmission solutions have been deployed in several commercial LTE networks, such as in Scandinavia and the US. While single modem video delivery devices might suffer from performance fluctuations, loss of transmission or inability to go live, LiveU's multi-link solutions allow broadcasters and online video professionals to enjoy the benefits of both the 4G and 3G worlds. LiveU's solutions are considered to be a viable alternative to costly satellite uplink or portable satellite TV equipment.

 
LiveU's video uplink systems meet US and EU cellular health-related standards (i.e. SARs - Specific Absorption Rates). For more details, please contact us.

LiveU's  EcosystemLiveU Central
 
LiveU incorporates the full-range of its cellular uplink product portfolio and its next-generation central management system, LiveU Central, in one single multi-layered, multi-faceted live video ecosystem. The LiveU Central management platform allows full control and monitoring of the entire ecosystem and content via any browser-supported device.
 

High Quality Video Transmission

LiveU has developed several advanced proprietary algorithms that enable resilient high quality video transmission over the ever-fluctuating multiple cellular networks. Among these are:

• Adaptive Bit Rate (ABR) of the H.264 video encoder.

This mechanism adapts the video encoding rate continuously according to the changing network conditions. Taking into considerations the continuous real-time measurements of the performance of every available link, the user’s resolution and latency requirements, cellular channel behavior and other parameters, ABR reduces or increases the H.264 video encoding rate. The result: a real time video rate adaptation mechanism that optimizes the encoding process on-the-fly.

• Error handling mechanisms:

In wireless and cellular environments, packet loss and errors are common inherent phenomena. LiveU has been developing proprietary error-handling mechanisms specifically adapted to these phenomena and to the unique paradigm of aggregation of multiple links. Adaptive and predictive Forward Error Correction (FEC), Error Concealment and Error Recovery mechanisms at the video application level complement each other and are employed as needed for each specific operation conditions.

LiveU provides sub-second latency for interviews and highly resilient profiles for live transmission from fast-moving vehicles (cars, trains, motorcycles, boats, and even helicopters when local law permits). We also offer high-speed File Transfer mode (FTP) over the aggregated bandwidth. As part of its full service option, LiveU provides roaming support for cost-effective global coverage.

 

Industry-Leading Technologies

LiveU mobile video transmission solutions include a range of unique technologies, including:

  • Proprietary antenna technology, extending the cellular networks coverage and converting cellular Dead Zones to Live Zones. The LU60's built-in Proprietary Antenna Technology uses highly advanced RF technology for exceptionally resilient transmission, compared to standard off-the-shelf aircards. From bustling urban environments to underground tunnels, high-rise office buildings and crowded public events, the LiveU LU60 overcomes cellular multipath fading and poor cellular coverage, taking "anywhere" to a whole new level.

  • Incorporating 4G LTE (and previously WiMAX) modems working in commercial networks.

  • Advanced roaming solution, allowing easy and cost-effective worldwide roaming with dual SIM cards per modem.
     

Unique Benefits:

  • More Content for Less Money: More teams can report from the field without Satellite/ Microwave trucks. All it takes is a single reporter and a backpack in the field.

  • High Accessibility and Availability: Anyone can transmit at broadcast quality within minutes of turning on the unit, from anywhere.

  • Portable and Simple Operation: LiveU's portable backpack carries a fully integrated, easy to operate unit.

  • Easy Integration: LiveU is easily integrated into the contemporary digital workflow.

  • Comprehensive service: LiveU takes care of the entire transmission package: testing modems, selecting SIM packages, nullifying cellular operators' billing issues, worldwide roaming support, and more.
     

Features & Capabilities:

Including:

  • Multi-Channel Aggregation: Bonds up to 14 modems over any and all 3G/4G LTE cellular, WiMAX networks, Wi-Fi, Ethernet and BGAN satellite

  • Fully Integrated Unit: Everything is included in one compact and easy-to-use device

  • Full HD Video: From CIF up to 1080 High-Definition

  • Any Video Camera: Interfaces to SDI, HDMI, DV or analog A/V input

  • Operational Modes: Optimized for specific scenarios such as Interview (sub-second latency), File Transfer and more

  • Multi-Client Video Receiver: Using off-the-shelf hardware, the server software supports multiple field units simultaneously with SDI outputs, FME, WME, and H.264 streaming

  • Diverse Power-Supply: Internal battery, Anton-Bauer, IDX, 110/220 AC, Vehicle Lighter

  • Additional Features: IFB, Remote Monitoring and Control, Media Recording, Store-and-Forward Mode etc.

 
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