Network Design Module: Mobile & Nomadic Systems

The Network Design Module, an add-on module to EDX SignalPro®, gives you a feature-rich, carrier-class, wireless network planning tool. It is ideal for all stages of network design – from initial deployment through network maturity, with special emphasis on automatic processes and capacity and interference issues.

Included in the Network Design Module is a specific feature set for designing Mobile and Nomadic Systems. The Network Design Module also includes specific feature sets for Multipoint Systems and WCDMA/UMTS Systems. This document only covers the features that are specific to mobile and nomadic systems. Specialized Area-Wide Studies

Studies
Specialized Area Studies
In addition to the basic studies in EDX SignalPro®, the Network Design Module offers technology-specific studies for mobile and nomadic systems:

C/(I+N) Ratio Using Channel Assignments Second Most Likely Server Non-CDMA Handoff Regions CDMA Best Server Based on Pilot or Traffic CDMA Handoffs (Hard, Soft, Softer, Soft+Softer, 3-Way Soft, 4-Way, 5-Way, 6-Way) CDMA Reverse Link BER Available Non-CDMA Channels Strongest CDMA Pilot Ec/Io CDMA Forward/Rev. Link Eb/No No. of CDMA Pilots Above T_add No. of CDMA Mobiles Support for Target Eb/No CDMA PN Offset Conflicts CDMA Forward/Rev. Link ERP for Target Eb/No CDMA Forward/Rev. Link FER GSM Worst-case Channel RxQual GSM Frame Erasure Rate (FER) GSM Bit Error Rate (BER) GSM RxLev GSM RxQual for Control & Traffic AMR Code Rate GPRS Block Error Rate (BLER) GPRS Maximum Mobile Data Rate EDGE Maximum Mobile Data Rate 1XRTT Maximum Data Rate Blocking Rate with Predicted or Measured Traffic

User-defined Area Studies
For complete flexibility, you can even design your own area study analysis via an external DLL using a customized or proprietary study algorithm. This advanced network design feature enables you tailor EDX SignalPro as you need.

Monte Carlo Analysis
A Monte Carlo analysis helps you determine loading and performance. Random mobile placement is controlled by selected traffic distribution. Loading limits are determined by total mobiles or soft-blocking and disconnect rates. Adaptive antenna descriptions are even considered in the analysis.

Features
System Operating Parameters
You have full control over system operating parameters including handoff thresholds and CDMA parameters. Designing your system is easy, efficient, and intuitive.

Overlay Systems
It is easy to set up and study overlay systems with mixtures of different technologies at each cell sector (i.e. AMPS + TDMA or GSM + GPRS). With easy right-click commands, sectors can be grouped together and adtivated/de-activated for easy traffic planning and analysis in multi-technology systems.

Automatic System Layout
Automatically lay out your cell sites within your market area using selectable criteria such as fixed hexagon grids with adjustable cell service radius.

Automatic Frequency Planning
For all mobile and nomadic systems, you can do automatic frequency planning. The Network Design Module includes standard channel plan templates or you can easily set up or import user-defined channel plans. Select EDX’s simulated annealing algorithm for optimum channel assignments or utilize your own algorithm via an external DLL. Automatic frequency planning can be based on EDX SignalPro predictions or on drive-test data. There are customizable QoS and capacity objectives, as well as consideration for already locked channel assignments. For complete flexibility, frequency planning can be done to all sectors, or a selected group of sectors.

Traffic Loading
Automatically calculate traffic loading on individual sectors based on real service areas and a selection of multiple service types. You can generate a report on sector loading or use the information for channel assignment calculations.

Circuit-Switched
Perform circuit-switched traffic distribution with QoS based on blocking percentage and average call length.

Packet-Switched
Perform packet-switched traffic distribution with individual control of multiple service mixes such as voice, e-mail, web browsing, audio streaming, and video streaming.

Traffic Distributions
Automatically weight the distribution of traffic in your service area with more accuracy using relevant criteria from underlying databases, such as:

• Demographic
• Traffic
• Land use/Clutter/Morphology
• Uniform loading

Adaptive Antennas
EDX’s analysis can take into account adaptive “smart” antenna C/I ratio improvements for transmitters and receivers using EDX’s exclusive adaptive antenna Application Programming Interface.

CDMA Breathing
Model CDMA breathing with EDX SignalPro by using the CDMA “based-on-traffic” studies. These specialized studies determine the most likely server from a weighted average of Eb/No and Ec/Io.

CDMA
Model CDMA breathing with EDX SignalPro by using the CDMA “based-on-traffic” studies. These specialized studies determine the most likely server from a weighted average of Eb/No and Ec/Io.Repeater sectors and donor sectors can be associated and considered in studies dependent on Most Likely Server and the CDMA handoff studies.

Comprehensive CDMA PN offset planning makes assignments to avoid co-offset and adjacent offset conflicts using real sector service areas.

For CDMA systems, you can accommodate RAKE receivers with user-defined adjustments.

Neighbor List
Neighbor list calculations are included based on most likely server and handoff criteria.

Propagation Models
In addition to EDX SignalPro’s selection of over 15 basic propagation models, The Network Design Module includes sector-specific models that can be “tuned” automatically or by manual adjustments to existing coefficients. Also, point-slope models can be created with test-drive data, and an external DLL link provides access to

Technologies
Adaptive Modulation Types
Data rate and bit error rate studies consider adaptive modulations schemes for the most refined study results.

Supported Technologies
The following technologies are supported in any frequency band:

• AMPS
• TACS
• NAMPS
• TDMA (IS-136)
• GSM
• CDMA (IS-95)
• 1XRTT (CDMA) / 1X EV-DO
• iDEN®
• GPRS
• EDGE
• OFDM

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