octoScope

Table of Contents

octoFade overview

octoFade-3GPP

octoFade-WiFi

octoFade-module

Channel models

FAQs

Ordering information

Frequently Asked Questions (FAQs) about octoFade updated 11-Ocotber-2011

What does octoFade do? How is it used?

What are octoFade’s most important benefits?

What are the most important features? Describe in detail

Are there any additional important features? If so, list below

Is there a new technology in octoFade?

What are I and Q?

Does the product reflect a new market strategy for the company? How does this strategy relate to current corporate strategy?

Who uses the product (job title/function and industry)?

Who purchases the product?

What are the trends in this market?

What alternatives to octoFade are available (Include direct and indirect competition)?

How does octoFade differ from those of competitors?

Does octoFade offer new capabilities to the market that were unavailable before now? Describe

ow octoFade being distributed and sold?

When is octoFade available?

  • What does octoFade do? How is it used?
  • octoFade implements standards-based 2G/3G/LTE and Wi-Fi channel models. When applied to a wireless signal using Digital Signal Processing (DSP), channel models make the signal appear as though it has traversed a realistic room or outdoor space, having been reflected from walls, cars, people or other surfaces. Wireless channel modeling is typically integrated into test equipment such as channel emulators, vector signal generators (VSG) and base station emulators. Channel models are defined by standards bodies, such as IEEE 802.11 and 3GPP to emulate effects of multipath and Doppler fading characteristic of typical wireless environments. Top
  • What are octoFade’s most important benefits?
    1. octoFade is a low cost channel emulation solution that can share the hardware with other wireless test instruments, such as VSGs or base station emulators
    2. octoFade can be easily integrated into existing test equipment to add channel emulation functionality without buying an expensive stand-alone channel emulator (typically $100k).
    3. Providing digital I and Q signals, octoFade enables engineers developing baseband subsystems to test radio performance at the DSP level, without the impact of the RF front end.
    Top
  • What are the most important features? Describe in detail
    1. Complete and extensively verified 3GPP certification models for LTE, WCDMA and GSM; 802.11n/ac channel models
    2. Flexibility of MIMO topology configuration (up to 4x4 or dual 4x2); easily expandable
    3. Ability to model impairments, including noise, spurious interference, IQ imbalance and phase noise (currently available for 802.11n/ac only)
    4. Extremely efficient VHDL implementation (e.g. The Stratix IV EP4SGX530KH40C2 implementation of 2G/3G/LTE 3GPP models uses only 23% of ALUTs, 37% of memory and 29% of DSP blocks)
    Top
  • Are there any additional important features? If so, list below
    1. Channel modeling source code (C and VHDL)
    2. Extensive, well-document API allowing configuration of standards-based and custom channel models to emulate a variety of wireless environments
    Top
  • Is there a new technology in octoFade?
  • octoFade is the only solution that exposes I and Q digital interfaces for integration into test equipment or for use in a variety of radio development environments and testbeds. Top
  • What are I and Q?
  • I stands for “in-phase” and Q stands for “quadrature” components of a wireless signal. A wireless RF receiver downconverts received signal to baseband and then digitizes it, producing I and Q sample streams for digital signal processing (DSP) subsystem to recover the transmitted data. To test the receivers’s ability to handle channel impairments, channel models are typically applied to digital I and Q streams using specialized channel modeling signal processing logic that emulates multipath and Doppler fading for a variety of indoor and outdoor environments. Top
  • Does the product reflect a new market strategy for the company? How does this strategy relate to current corporate strategy?
  • The new release of octoFade-3GPP and octoFade-module builds on the existing octoFade-WIFI channel modeling solution. octoFade is offered as a stand-alone channel emulation logic subsystem to vendors of test equipment and engineers who need to integrate this functionality into their testbeds. Top
  • Who uses the product (job title/function and industry)?
  • octoFade is used by engineers developing or selecting wireless products for RF environments with multipath, interference and Doppler fading. Industries include cellular, wireless broadband, military, public safety, smart grid, connected vehicles and sensor networks. Top
  • Who purchases the product?
  • R&D and QA managers; testbed integrators and operators who use test equipment to select optimum wireless equipment for deployment Top
  • What are the trends in this market?
  • • Wireless connectivity is being incorporated into a widening variety of communication and consumer devices and industrial controls, including phones, pads, PCs, access points, base stations, military and public safety handsets, vehicles, smart meters, sensors and other such devices comprising the emerging Internet of Things (IoT). Modern radios operate in hostile environments subject to multipath, interference and dynamically changing conditions due to motion of the radios and reflectors. To ensure adequate performance for mission-critical radio transmission and to optimize range and throughput of wireless devices, engineers rely on channel emulation for radio testing. With the emergence of MIMO (multiple input multiple output) radio technology, channel emulation has become a critical part of radio test. Top
  • What alternatives to octoFade are available (Include direct and indirect competition)?
  • Alternatives to octoFade are stand-alone expensive (on the order of $100k) channel emulators that incorporate RF front end and channel emulation logic subsystems. Top
  • How does octoFade differ from those of competitors?
  • • octoFade is the only channel emulation solution that can interface directly to the DSP subsystem bypassing the RF front end of the radios under test. Competing stand-alone emulators can only interface to the radios via the RF antenna ports. octoFade is the only solution optimized for integration into existing test equipment. Top
  • Does octoFade offer new capabilities to the market that were unavailable before now? Describe
  • octoFade offers a development environment for radio DSP subsystems without requiring the radio RF front end to be present for testing. Following the divide-and-conquer rule, testing DSP separately from RF front end makes it easy for engineers to isolate issues with DSP algorithms from issues with RF front end. With the currently available channel emulators, RF front end impairments can make it difficult and time-consuming to separate DSP issues from RF issues. Top
  • How octoFade being distributed and sold?
  • octoFade is sold directly by octoScope Top
  • When is octoFade available?
  • For customers requiring outdoor 3GPP channel emulation solutions, octoFade-3GPP RTL and octoFade-module implement real-time LTE, WCDMA and GSM channel models. For customers requiring 802.11n/ac channel models, octoFade-WIFI is currently available as C software and library for Windows and Linux systems, offering non-real-time channel modeling capabilities. octoScope welcomes customer inquiries about FPGA-based real-time implementation of Wi-Fi channel models. Top