The On-Ramp Wireless Ultra-Link Processing™ technology is purpose-built for wireless machine-to-machine networking systems; specifically for wide area deployment in metro-scale or in other challenging environments for applications such as electric, gas and water metering, distribution automation, condition monitoring and geospatial services.

Ultra-Link Processing™ is the trademarked name for the On-Ramp Wireless communication system. The name also refers to the physical layer digital signal processing implementation.

Random Phase Multiple Access (RPMA) is the name of the innovative On-Ramp Wireless multiple access method.

The Ultra-Link Processing™ (ULP) system consists of the following:

• Wireless modules for integration with various sensor and device platforms, such as electric meters, pressure sensors, and geospatial devices. The currently available module is the ULP eNode.
• The ULP Access Point, the only network infrastructure deployed in a Ultra-Link Processing™ network. The access point connects to deployed devices in the service area and the ULP Gateway in the backend hosting facility.
• [Thousands of Nodes can be configured for each Access Point and a network can be made up of multiple Access Points.]
• A comprehensive, utility-grade backend application platform, including the ULP Gateway, a Network/Element Management System, and a Key Management Server for comprehensive end-to-end secure traffic handling.
• Finally, On-Ramp delivers an enterprise level headend application called Critical Infrastructure Monitoring Application.

See Network Architecture for more information.

The ULP wireless module is a small form factor product intended for integration with application vendor platforms, such as electrical meters, pressure sensors, GPS devices, etc. Currently available is the ULP eNode. In Q3 of 2011 On-Ramp will introduce its next generation module called the microNode.

The ULP Access Point is the central data collection point in a ULP netwok and the only network infrastructure deployed in the service area. It has the capability to connect to thousands of remote endpoints. The Access Point also transmits downlink data to the endpoints, either using uni-, multi- or broadcast. Hundreds of Access Points can be deployed in a single network to provide coverage for wide areas, such as entire states or countries.

The ULP microNode is On-Ramp’s second-generation wireless module. With a fully integrated SoC, this module provides the same industry leading wireless performance but in an even smaller form factor.

An objective measure of the radios ability to demodulate a signal bounded by power levels. This is especially important to wireless communications systems in metro and industrial environments. Receive sensitivity is the only way to accurately measure up range and robustness of wireless systems in an apples-to-apples comparison.

In a spread spectrum system, processing gain is the ratio of the spread bandwidth to the un-spread bandwidth expressed in decibel (dB).

Wikipedia.

Link budget is a measure of the total allowable path loss in a radio system. For the Ultra-Link Processing™ system link budget is calculated as follows:

+ Processing gain
- SNR after de-spread
+ Antenna gain
+ Transmit power
+ Thermal noise floor of the radio

Wikipedia.

DSSS is the ability to employ processing gain to generate receive sensitivity, which allow coverage and immunity to interference. In CDMA systems, it has been proven that DSSS creates high performance, robust, and high capacity networks.

Wikipedia.

Yes, absolutely. Whether the noise is thermal, wide-band interference, or narrow-band interference, processing gain combats these effects identically. DSSS theory and laboratory results using the On-Ramp Wireless hardware bear this out definitively.

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