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iQ·clearXG
Key Features

FLEXIBLE CELL LAYOUT OPTIONS

iQ·clearXG™ offers a flexible approach to every design phase, from pre-auction planning, to initial analysis, to full deployment to on-going maintenance.

For your initial planning phase, where the locations and specifications of the base stations have not yet been defined, iQ·clearXG offers two methods for creating a representative layout to help you determine the extent of incumbent use of the band.

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Traffic-based layout parameters

1. Uniform Layout: This option allows you to quickly populate your entire licensed area with cells of uniform radius, providing you with a quick-look at the potential interference environment.



2. Traffic-based Layout: This option allows you to make use of census tract data included with iQ·clearXG. With this approach, the software begins with a uniform layout with a maximum cell radius. Then the cell capacity utilization (traffic / capacity) is examined. If the utilization is not within a specified range, the cell is divided until the desired utilization is achieved or the number of dividing levels reaches the maximum specified. This type of layout is more representative of an actual cell layout, since it results in the highest concentration of cells, in the most densely populated areas.

3. Import from External Sources: This option allows you to import cells from external planning tools, databases and spreadsheets directly into iQ·clearXG for analysis. This offers the most accurate interference assessments as it allows for the use of actual cell designs. Three cell import formats are supported, making it simple to import cells from any source.

MULTIPLE ANALYSIS OPTIONS

iQ·clearXG offers five types of interference analysis:

1. Spectrum Recommendation
2. AWS into Microwave
3. Per-Channel Aggregate
4. Colocation
5. Microwave into AWS

For interference into incumbent analog radios, iQ·clearXG calculates both Baseband Noise Objectives and Threshold Degradation interference objectives. The worst-case interference objective is used. The Baseband Noise Objective is typically controlling when the AWS system operates at or near the center frequency of the microwave receiver.

For interference into incumbent digital radios, the interference objective is determined using the manufacturer's Threshold-to-Interference (T/I) curves. Because of the various bandwidths of AWS and incumbent radios, iQ·clearXG considers the bandwidth differences and adjusts the objective accordingly.

Spectrum Recommendation

Spectrum Recommendation:
The Spectrum Recommendation Analysis is used when a frequency plan for the AWS layout has not been determined. The user specifies the number of frequencies required and iQ·clearXG quickly identifies the channels that require the least incumbent relocation.

Detailed Cell Information

AWS to Microwave:
This analysis is used when the cells being analyzed have a defined frequency plan. This is the most thorough analysis available, which aggregates the power from every AWS frequency in the entire cell layout. This total interfering level is then compared with an aggregate interference objective that is based on the overall AWS power spectral density. The results are reported with color-coded cells, indicating the percentage of available spectrum in each cell as well as through reports, which provide the details of the interfering levels, interfering objectives and margins.

Graphical Display

Per-Channel Aggregate:
This analysis also predicts interference from AWS into Microwave. However, in certain cases, especially with TDMA systems where multiple carriers per-sector are involved, you may desire an analysis that is a little less conservative than the rigorous AWS to Microwave Analysis.

In this Per-Channel Aggregate analysis, interference levels from each sector are aggregated only on a per-channel basis. For example, all sectors operating on channel F1 are aggregated together, all sectors on F2 are aggregated together and so on. Then an interference objective is calculated for each specific channel independently. The total interfering level based on each channel is then compared to the interference objective for each channel.

Colocation: The colocation analysis is used to predict potential interference from incumbent sites that are located within the specified radius of an AWS cell/sector and are within +/- 50 MHz of the allocated spectrum.

Microwave to AWS: This analysis provides the ability to analyze interference from the incumbent systems into the proposed AWS Base Stations and Mobile Units.

DETAILED REPORTS

iQ·clearXG offers several detailed reports that can be viewed on-screen, sent to a printer or saved to an ASCII, delimited file. These reports include:

• Active Microwave Link Data Report (Owner-Based or ID-Based)
• Inactive Microwave Link Data Report
• Cell Traffic Usage Report
• System Summary Report
• Link Severity Summary Report (Owner-Based or ID-Based)
• Individual Link Severity Report
• Spectrum Availability Report
• Spectrum Recommendation Report
• Collocation Report
• MW to Mobile Interference Report
• PCN Plots

Spectrum Recommendation Report

ON-LINE HELP

iQ·clearXG provides help buttons on the majority of the windows, providing the user with access to comprehensive descriptions of important parameters.

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