utf 8_wizard adv (day three)
DESCRIPTION
Plan with optimi wizardTRANSCRIPT
March 2006
x-Wizard – Advanced Training
DAY THREE – Permissions Matrix, Channel Planning Tools and Traffic Modeling
2
Class Agenda• Permissions Matrix -
– A description of the x-Wizard permissions matrix and its inputs
• Channel Plans and Tools for Evaluating -– A description of the different sections of channel planning
and interactive channel planning tools available in x-Wizard to help evaluate channel plans
• Traffic Modeling -– A description of x-Wizard traffic grids, how to manipulate
them and how to use them in analyses• Misc x-Wizard Features –
– Features not covered elsewhere in the slides.
3
Class Agenda – Permissions Matrix
• Permissions Matrix– Types of Permissions Matrices
The C/I Matrix The Area Matrix The Traffic Matrix
– Create Permissions Matrix Routine Inputs Traffic Sharing Transition Areas - Multi-Resolution Terrain
4
Class Agenda – Permissions Matrix
• This section of the class is offered . . .
– To explain the different types of permissions matrices and their use
– To illustrate the differences between the various types of permissions matrices and when each would be used as input to the AFP
– To explain the inner workings of the permissions matrix routine
5
Class Agenda – Permissions Matrix
• Permissions Matrix– Types of Permissions Matrices
The C/I Matrix The Area Matrix The Traffic Matrix
– Create Permissions Matrix Routine Inputs Traffic Sharing Transition Areas - Multi-Resolution Terrain
6
Permissions Matrix - Types
The Permissions Matrix is a table of values.– Serving cell is listed in each row– Interfering cell is listed in each column
Each value in the table represents how much interference the Serving cell would experience IF the Interfering cell were co-channel.
Each value assumes:– The serving cell is bound by equal power boundaries– The interfering cell is bound by its prediction boundaries (i.e. Calc.
Dist.)– The C/I’s in the serving area will form a Gaussian distribution (i.e.
curve is defined by a mean value and std. dev.) This may not be the case in some instances
7
Permissions Matrix – Types
The C/I Matrix• Starts with a Tx pair• Calculates the C/I for each
bin over the service area• Counts the # of bins that
have a C/I of ‘X’ to build a histogram
• Repeat for all Tx Pairs 8 7 5 4 2 2
19 15 13 10 9 6 5 4 2
29 22 20 15 14 11 10 8 7 5 3 3
35 30 24 21 17 14 13 10 9 7 6 4 3
28 25 20 17 14 12 11 11 10 9 4 3
18 16 15 15 12 12 12 11 5
Interfering Site
Serving Site
Predicted C/I for Serving-Interfering pair
8
Permissions Matrix – Types
The C/I Matrix• The Histogram is evaluated for a single Tx pair• The C/I value is entered into the matrix that represents the
Nth percentile
C/I Value entered into Permat
One Value Represents the histogram!
9
Permissions Matrix – Types
The Area Matrix
C/I Value Permat
Probability of Interference
-0.10
0.10.20.30.40.50.60.70.80.9
11.1
Prob
abili
ty
Probability of Interference represents % of area interfered
Graph of COCHANF.DAT
• Start with predicted C/I over coverage area
• C/I is used to scale the ‘area’ that is interfered
•Uses the Cochanf.dat (found in Common folder) to scale the area
Example:
C/I of 13 dB represents a 55% probability of interference (i.e. 55% of the area in that bin is interfered)
For one 90m bin, that is:
(90x90) * 0.55 = 4.455 km2 Interfered
10
Permissions Matrix – Types
The Area Matrix• The km2 of interfered area are binned per C/I to form histogram
• The value in the matrix is a sum of all interfered area (units of km2)
• Moves Interference away from rural sites
•Works best when all sites coverage areas are roughly the same
km2 of Interference at a given C/I
11
Permissions Matrix – Types
The Traffic Matrix
C/I Value Permat
Probability of Interference
-0.10
0.10.20.30.40.50.60.70.80.9
11.1
Prob
abili
ty
Probability of Interference represents % of traffic interfered
Graph of COCHANF.DAT
• Start with predicted C/I over coverage area
• Read amount of traffic in a bin from a demand grid
• Uses the Cochanf.dat (found in Common folder) to scale the traffic
Example:
C/I of 13 dB represents a 55% probability of interference (i.e. 55% of the traffic in that bin is interfered)
For one bin with 33 mErl, that is:
33 mErl * 0.55 = 18.15 mErl Interfered
12
Permissions Matrix – Types
The Traffic Matrix• The mErl of interfered traffic are binned per C/I to form histogram
• The value in the matrix is a sum of all interfered traffic (units of mErl)
• Traffic grid can be weighted by clutter types (i.e. don’t put traffic in water)
• Moves Interference away from high traffic sites
• Of all options, this one works best as input to AFP
mErl of Interference at a given C/I
13
Class Agenda – Permissions Matrix
• Permissions Matrix– Types of Permissions Matrices
The C/I Matrix The Area Matrix The Traffic Matrix
– Create Permissions Matrix Routine Inputs Traffic Sharing Transition Areas - Multi-Resolution Terrain
14
Permissions Matrix – Inputs
Analysis > Create Permissions Matrix
15
Permissions Matrix – Inputs
Permissions Matrix InputsGeneral
• Output Name: name the new permat or over-write one that already exists
• Reference Grid: no longer used; x-Wizard will generate multi-resolution permat based on terrain assigned to cell
• Transmitters to Include: Normally just use your target technology– note that you can only create a C/I matrix if
you select more than one technology (traffic or area matrices are not allowed)
16
Permissions Matrix – Inputs
Permissions Matrix InputsDetermining Service Area
• Server Calculation Method: determines the most likely server based on choice
– Strongest Server: most likely server is the transmitter with the strongest Received Signal Level (RSL).
– HCS and Forward Link RSL: Most likely server is the transmitter with the strongest RSL equaling or exceeding the sufficient signal strength and highest HCS level. The HCS level has priority, so the most likely server may not be the strongest server.
17
Permissions Matrix – Inputs
Permissions Matrix InputsDetermining Service Area (cont.)
• ‘Exterior’ sectors: A sector that points to unserved area; no other network sites to create equal power boundaries and limit the coverage area
– Min. Serving Signal: Sets the minimum Received Signal Level (RSL) required for a sector to serve a bin
– Max Service Area Radius: Sets the maximum distance an exterior site can serve
Limits the service area by preventing the site from serving an area beyond this radius – even if RSL meets Min.
InteriorSite
ExteriorSites
18
Permissions Matrix – Inputs
Permissions Matrix Inputs Selecting Type of Matrix
• Generate Area Interfered Matrix – will create an area interfered permissions matrix
• Generate Traffic Interfered Matrix – will create an traffic interfered permissions matrix
• Generate Co-channel Interference (CCI) Histogram: Utilized by OPTIMI x-AFP; not necessary for CellOpt
19
Permissions Matrix – Inputs
Permissions Matrix Inputs Modeling Traffic Distributions
In reality, two people standing next to each other can be served by two different servers
– Calls originating in different sectors can be dragged into the same bin
– Calls can be served by different sites based on traffic congestion
i.e. one server is NOT serving all traffic in a bin– We want to capture this when distributing traffic
for Permat Traffic in a bin will be split amongst the N different
servers
Call originatedCall dragged to . . .
TerrainBin
20
Permissions Matrix – Inputs
Permissions Matrix InputsSpreading Traffic
1. MAX Servers: maximum number of servers in a bin
• This field limits the number of sectors that can serve a bin for the purpose of spreading traffic
*Important Point: The Voice Traffic field in the Tx dialog MUST be populated (or you will have to select an override value)
21
Permissions Matrix – Inputs
Permissions Matrix InputsSpreading Traffic (cont)
2. Determine % of traffic served by each Sector in a bin
– SERVERWEIGHT.DAT – Traffic distribution based on RSL delta between the strongest server & the Nth server (used if no HCS present)
– SERVERSCALE.DAT – Traffic distribution based on delta between serving HCS and Nth server’s HCS
These tables distribute traffic amongst the different sectors serving the bin.
Only the Nth strongest signals are considered based on the user setting Max. Servers
Delta (dB) Weight0 1.01 0.72 0.53 0.34 0.25 0.1
22
Permissions Matrix – Inputs
Permissions Matrix InputsSpreading Traffic (cont)
3. Clutter Weighting: Distributes traffic in a realistic pattern
• Reads Clutter Adjustment’s Traffic Weight field
• Puts more users on roads rather than open fields in rural areas, for example
• Allows the AFP to push interference into open areas and water, for example
23
Permissions Matrix – Inputs
Permissions Matrix Inputs (Other)
• COCHANF.DAT – Probability of Interference at various C/I levels– Used to scale the Area interfered and Traffic interfered matrices
• IncludeThermal Noise: Routine will calculate C/I+N, rather than just C/I (Generally NOT Recommended)– Enter an appropriate value for the Noise Figure in (dB).– Can be dangerous with Exterior sectors since Noise
Figure can be dominant source of interference Set Min. Serv. Signal at Exterior sectors to high value (-85dB) to
compensate
24
Permissions Matrix – Multi-Resolution
Multiple terrain and clutter resolution in the SAME analysis
Better suited for “Transition Areas” between Morphologies
25
Permissions Matrix – Multi-Resolution
Multi-Resolution Analysis Calculations
•Area by Area Analysis
•Areas are then studied to get final result
•Takes advantage of high resolution over a small area while still calculating all sites.
•Much faster than system wide high resolution
26
Class Agenda – Channel Planning
• Channel Plan Data– Frequency Mapping Tables– Frequency Templates– Assigning Tables and Templates– Types of iDEN Channels
27
x-Wizard Channel Planning
• x-Wizard uses 3 different files to support channel planning– Channel Plan (*.pln)
Radio assignments for each transmitter Saved in …\\Project\Chanplan
– Frequency Table (.ftf) Mapping of channel numbers to center frequencies Saved in …\\Common\Frequency Tables\<Technology>
– Channel Template (*.tpl) Tabulated display of all channels available in the system Saved in …\\Common\Templates
28
Channel Plan (*.pln) • The Channel Plan
– Records transmitter radio assignments
– Is project specific• Multiple channel plans
for a project can be created and saved, but– one channel plan can be
active in project at any moment
– Requires explicit save
Channel plans available in a project
Channel plan active in a project
29
Frequency Table (*.ftf)• Mapping tables
– Channel number to frequency mapping
• Editable by:– x-Wizard
Tools > Edit Frequency Table…
– Windows (Notepad, Excel…)
• If a channel does not exist in the frequency table then it can NOT be used in the project
• Basis of cross tech studies
30
Frequency Table (*.ftf)• Assigned at:
– Project, System, or Switch Split frequency bands
• All radio assignments in Channel Plan must be defined in Frequency Table!– Note that you do not lose
channels, they just can notbe assigned or used.
- Interference in x-wizard is based on frequency
31
Channel Template (*.tpl)• Spreadsheet view of available channels in the
system Assigned at the Project, System, Switch, or TX
– All transmitters under that parent use assigned template Provides a structured approach to channel planning
– Groups, Sets, Subsets, and Channels– Color code, & PCCH offset
32
Creating Channel Template
• Templates are ASCII files created using the Channel Template Editor Macro– Tools > Channel Template Editor
No Duplicate #’s, spaces, or symbols should be used. Save to x-Wizard will auto-load the template into your Common
Dir. Save elsewhere requires loading into x-Wizard!
33
Assigning Channels to Tx• Multiple options in x-Wizard
1. Edit > Channels Click ‘Rainbow’ to open the
template2. Edit cell
Open channel template for the transmitter of the cell
3. ‘Rainbow’ icon on x-Wizard toolbar
4. Wireless Explorer Right mouse-click on the Tx >
Edit Channels5. Import channel plan
File > Import > Channel Plan …
34
Radio Properties • Radio Properties are saved
as part of Channel Plan• Radio properties include:
– Options will vary by Technology Examples are:
– Channel number or ARCFN FCC Carrier-Decimal (iDEN) Carrier-Hexadecimal (iDEN)
– Center frequency Set by freq. table
– Radio type 7 iDEN types
– PN’s or Power per Channel
35
Radio Types … iDEN Only1. ‘Primary Ctrl’
– Used to model the Motorola primary control channel designation
2. ‘Secondary Ctrl’– Used to model the Motorola secondary control channel
3. ‘Voice’– Used to model traffic channels
4. ‘Planned’– Used to model traffic channels that are currently not on-air but will be implemented in the future
5. ‘Forbidden’– Used to mark channels that can not to be used in the site due to FCC restrictions regarding
incumbent users
6. ‘WiDEN’– A rack unit that contains up to 4 radios; WiDEN groups handle both voice and data. WiDEN
groups contain sequentially adjacent channels
7. ‘Quad BR’– A rack unit that contains up to 4 radios. The device fills the same "slot" as a single radio device.
All radios in a Quad BR contain sequentially adjacent channels. Quad BR groups can contain one, two, three, or four radios. Quad BR's handle only voice traffic.
36
Class Agenda – Channel Planning
• Specific Topics– Quasi-Omni’s – WiDEN channels– Quad-BRs
37
Quasi-omni (Simulcast Repeaters)
• Sector-level parameter– Separate ‘technology’– Non-translational repeater
One sector donor – other repeaters All sectors use the same channels
– Do NOT interfere with each other Interference analysis Permission matrix calculations
– Represented by one (donor) sector!
• Traffic – Defined for donor sector- traffic
becomes “site” traffic
38
Quad BR and WiDEN for iDEN
• Query Tool (Edit > Query) to Find Quad BR and Widen • Requires Channel Plan
• Create Active Set
• Show Sectors on Map
• Run Cover on only Widen– Load active set– Run cover on active set
39
Quad BR and WiDEN in x-Wizard
• Supports export-import to CellOpt AFP • x-Wizard can assign multiple Quad BR or WiDEN in
a single transmitter• Interference analysis
– Treats individual frequencies within a group as if they are a separate radio assignments
40
Quad BR and WiDEN in x-Wizard
• Channel display in Map-viewView > Channel Options… (Ctrl + H)
41
Class Agenda – Evaluating Plans
• Show Conflicts• Show Problems• Show Permissible Usage
• Interference Analyses– Regular Interference– Radio Interference– Traffic Interfered aka Frequency Plan Scoring – 6.6.3.x
for iDEN only.
42
Class Agenda – Evaluating Plans
• This section of the class is offered . . .
– To explain the different types of interactive channel planning tools and their use
– To illustrate the use of each tool when evaluating plans
43
Channel Plan Evaluation Tools
• x-Wizard Evaluates Frequency Plan interference problems using:
C/I permission matrix C/I requirement for the given technology Adjacent Channel rejection (ACR) of the equipment used in the
system
• C/I Permission matrix tools– Show Conflicts– Show Problems– Show Permissible Usage* Remember Permat is only as good as your prediction models
ACRCochannelAdjacent ICIC //
5
44
PM Usage - Show Conflicts– Violations that would
occur if channel were assigned: Co- and adjacent
channel interference requirements violations
Can be changed “on the fly”
Channels > Show Conflicts…
“If assigned to ‘Downtown Chicago’ alpha sector, channel #183 would cause unacceptable co-channel interference to beta sector of the same site!”
How to read this dialog box?!
45
PM Usage - Show conflicts• Available also in a template view
Open template using ‘Rainbow’ tool, or Edit > Channels > ‘Rainbow’
Default Colors (can be changed with Format > Color Scheme)•Gray box + Black channel number = No-violation•Yellow box = Potential interference conflict•Yellow frame of an assigned ch. = Existing interference conflict•Light Yellow= Potential interference with different TX of same site!
46
Show Problems and Permissible Usage
• Problems Violations resulting from
the current channel assignment
‘Make List’ will create files for each problem type (co-channel, cross-tech...)
• Permissible usage Lists all channels that
can be assigned to Tx without any violation
Channels > Show Problems…
Channels > Show Permissible Usage…
“Current assignment of the channel #242 on alpha and beta sectors of the site ‘Brockton Hwy3’ causes unacceptable co-channel interference between them!”
How to read this dialog box?!
47
Manually Manipulating Permat
• Load, manually create or edit permission matrices– Alternations of permat usually
based on empirical data or market knowledge rather than prediction model
• Override matrix is the preferred method
Preserves the original matrix
User can manually enter C/I where needed to prevent reuse
48
Channel Plan EvaluationRegular Interference
• Preferred for project level• TX level interference – if
two TX’s share a radio it will be considered interference over the TX coverage area
• Tends to be conservative often shows more interference that exits
• MUCH faster than radio level
• Channel plan or “on the fly”
Radio Interference• Best for small studies• Each radio of the TX is
compared to each radio of other TX’s
• More realistic Interference• N x N calculations where
N=# of Radios for each TX• The more sites/radios the
longer the runtime• Channel Plan Only• GSM Interference is
already a radio level
49
Evaluation of Channel Plan
Regular Interference1. Determine servers by
calculation method2. Determine C/I for TX to TX
based on Parameters 3. Display by “Show” menu
- Study channel plan or click on the interfering sites with the mouse by choosing “Select” in Interferers section
50
Evaluation of Channel Plan
Radio Level Interference (iDEN Only)
1. Determines C/I for each individual radio (server calc method)
2. Then looks at the C/I value for each radio in each bin and based on the value, determines the best and worst radios
3. Then puts the C/I results in three separate screen grids, best, worst, and average case (show)
51
Channel Plan Evaluation• Traffic Interfered Analysis AKA Freq Plan
Scoring• Used to study the amount of interfered traffic
in a channel plan• Two outputs
– Map Screen = Bands represent by amount of interfered traffic % or mErl
– Report Output = Statistical output that can be analyzed outside of x-wizard.
52
Class Agenda – Traffic Modeling
• Types of Demand Grids– The Relative Demand Grid
Clutter as relative demand– The Absolute Demand Grid
• Generating Demand Grids– Creating Grids . . .
Using Drawings Importing from MapInfo Using Demand Grid Generator
– Using Switch Data– Overlay/Underlay Cells
– Manipulating Demand Grids Adjusting single demand grid Merging two demand grids
– Traffic Analysis Traffic Served Traffic Offloaded
53
Class Agenda – Traffic Modeling
• This section of the class is offered . . .
– To explain the different types of demand grids and their use
– To illustrate the differences between the various types of demand grids and when each would be used
– How to model different traffic scenarios with x-Wizard
54
Class Agenda – Traffic Modeling
• Types of Demand Grids– The Relative Demand Grid– The Absolute Demand Grid
• Generating Demand Grids– Creating Grids . . .
Using Drawings Importing from MapInfo Using Demand Grid Generator
– Using Switch Data– Overlay/Underlay Cells
– Manipulating Demand Grids Adjusting single demand grid Merging two demand grids
– Traffic Served Analysis
55
Traffic Modeling - Types• Demand grid provides geographical distribution of
the traffic on a bin by bin level. • x-Wizard demand grids types:
– Absolute voice (mE) data (kb/sec)
– Relative any value (pop. etc.)
• Basis of Traffic Study
56
Traffic Modeling - Types• Absolute DG
– Shows the actual Erlang value for a given bin
– Used to determine traffic served by a transmitter
– Used for traffic offloading– Used in Monte Carlo analysis to
distribute mobiles geographically
• Relative DG– Traffic values are relative to other
traffic values…– Example: A=10x B – Used in Monte Carlo analysis to
distribute mobiles geographically
Example of a voice absolute DG
57
Class Agenda – Traffic Modeling
• Types of Demand Grids– The Relative Demand Grid
Clutter as relative demand– The Absolute Demand Grid
• Generating Demand Grids– Creating Grids . . .
Using Drawings Importing from MapInfo Using Demand Grid Generator
– Using Switch Data– Overlay/Underlay Cells
– Manipulating Demand Grids Adjusting single demand grid Merging two demand grids
– Traffic Served Analysis
58
Traffic Modeling – Creating Grids
• x-Wizard supports three ways to create a demand grid– Using x-Wizard drawing utilities– Import from MapInfo– Using x-Wizard demand grid generation analysis
59
Traffic Modeling – Creating Grids
• Using x-Wizard drawing utilities– Import from MapInfo– Using x-Wizard demand grid generation analysis
60
2) Select object One at a time
3) Add a field to the objects4) Assign a value to the field
– Traffic generated within the area covered by the object
– In mili Erlangs (mE) !!
– Final Step on Next Slide
Traffic Modeling – Creating Grids
1) Draw objects in x-Wizard Polygon, rectangle... 1)2) 3) & 4)
61
Traffic Modeling – Creating Grids
5) Convert the polygon into demand gridThe field from the step 3)
Assigns Field value to every bin covered by the object
Distributes Field value between all bins covered by the object
62
Traffic Modeling – Creating Grids
– Using x-Wizard drawing utilities• Import from MapInfo
– Using x-Wizard demand grid generation analysis
63
1) Import Mapinfo .MIF containing appropriate data
Census population data, morphology classification, streets etc.
2) Display .MIF (Enhanced Picture File) and make it editable
From Control Display Options or Tool Bar
Traffic Modeling – Creating Grids
Imported MIF Fields
File > Import > MapInfo MIF ...
Covert to Demand on Next Slide…
64
3) Convert .MIF Enhanced Picture File into demand grid
4) Manipulate resulting demand grid to get traffic demand grid For example: multiply with scaling factor
Traffic Modeling – Creating Grids
65
Traffic Modeling – Creating Grids
– Using x-Wizard drawing utilities– Import from MapInfo
• Using x-Wizard Demand Grid Generation Analysis
66
Traffic Modeling – Creating Grids
• 1) Assign traffic to each sector using one of the following methods:– A - Manually populate the traffic field for every transmitter
– B - Import switch traffic using x-Wizard import/export functionality File > Import > Project Data…
– Populate ‘Voice Traffic’ at transmitter level (*tx)
67
Traffic Modeling – Creating Grids
2) Run analysis
Clutter file (if any) to weigh the traffic based on clutter type
Traffic distribution is bounded by analysis coverage or Max Radius - Whichever condition is met first
If checked x-Wizard will use the specified value for all the transmitters. Otherwise x-Wizard will use the transmitter specific traffic values
Analysis >Traffic > Demand Grid Generation ...
68
• Demand coverage area for each transmitter is determined by:
The result of the specified analysis,or
Maximum service area radius (whichever is met first!!)
• If absolute demand is created Every bin in the demand coverage
area will get assigned a traffic value:
Traffic Modeling – Creating Grids
servedbinsA
A TXServingBinABS #.
69
Maximum Relative Value =250
Example of the demand grid generation through x-Wizard analysis
Traffic Modeling – Creating Grids
• If relative demand is selected Every bin in the demand coverage area will get assigned a
traffic value:
ValueveMax.RelatiA
AABinABS
BinABSBinREL
)max( .
..
70
Traffic Modeling – Creating Grids
• Traffic served by a transmitter IS NOT uniformly distributed over the coverage area of a
transmitter– for example - Urban area may generate more traffic than suburban
• x-Wizard scales the traffic for a given transmitter with traffic weighting associated with clutter I.D
Edit > Clutter Adjustment File ...
Test_clutter-ADJUSTMENT-FILE
Test_clutter-file
Test_clutter-ADJUSTMENT-FILE
71
• x-Wizard traffic weighting algorithm Determine the number of bins the
transmitter is serving for each clutter type (N)
Calculate unit traffic for the transmitter
Distribute total Tx traffic to bins of a clutter type served by the transmitter
RuralLakeSuburban
Traffic Modeling – Creating Grids
M
iii
TxTx
NTW
TrafficTotalTrafficUnit
1binsofNumberN
WeightTrafficTWtypesclutterofNumberM
clutterTxTx TWTrafficUnitClutterBinTraffic /mEBinsSuburban
mEBinsLakemEBinsRural
Sector
158053
72
Traffic Weighting - Example
• Assume that sector gamma () of a cell-site serves 20E of traffic– Transmitter service area covers following clutter types:
Lake (TW=0)... 34 bins Rural (TW=1) … 246 bins Suburban (TW=3) … 43 bins Other (Urban, Commercial, Water) … 0 bins
• Calculate traffic/bin for each clutter type that will go into DG
mEmETWTrafficUnitbinTraffic LAKETxTx 53153/
mEmETWTrafficUnitbinTraffic LAKETxTx 0053/ LAKESUBURBANRURAL
mEmETWTrafficUnitbinTraffic LAKETxTx 159353/
mEmEmE
NTW
TrafficTotalTrafficUnit M
iii
TxTx 536.52
2461433340000,20
1
73
Class Agenda – Traffic Modeling
• Types of Demand Grids– The Relative Demand Grid
Clutter as relative demand– The Absolute Demand Grid
• Generating Demand Grids• Creating Grids . . .
– Using Drawings Importing from MapInfo Using Demand Grid Generator Using Switch Data Overlay/Underlay Cells
– Viewing and Manipulating Demand Grids Adjusting single demand grid Merging two demand grids
– Traffic Analysis
74
Viewing Demand Grids• After Creating or Importing…to use View > Demand Grid• Band Limits are in mErlangs• Point Mode Will Display Per-Bin Result
75
Traffic Modeling – Manipulations
• DG Manipulation – Operates on one grid –
Scaling– Multiplies the demand
grid with the specified scaling factor
– Add constant– Adds the additive
constant to the demand grid
– Conversion between absolute and relative DG
Tools > Demand Grid > Manipulation ...
76
Traffic Modeling – Manipulations
• DG Binary operation– Operates on two grids
bin-by-bin
– Addition– Subtraction– Multiplication
• Any polynomial can be implemented using these operations in an iterative way
Tools > Demand Grid > Binary Operations ...
77
Traffic Served Analysis• Calculates number of trunks per
transmitter required to support traffic given by DG
Coverage area of the transmitter is determined using RF prediction analyses and maximum service area radius
• Currently - only Erlang-B is available
Different models will be available soon for voice and data (Pareto, Erlang C etc.)
• Result Traffic report in form of Excel
spreadsheet
Analysis > Traffic > Traffic Served ...
78
• Report includes: Traffic served by the transmitter (in mE) Area served by the transmitter Required number of trunks for target GoS Actual GOS for the sector
– Always less than or equal to target GoS!
Traffic Served Analysis - Report
79
Traffic Offloaded Analysis• Predicts the impact of
addition of new sites Sectorizing, HCS, cell split etc.
• Evaluates the configurations ... … before new sites are added… with the new sites
• Generates-– a report on the differences– Map Pointers to changes
Analysis > Traffic > Traffic Offloading ...
80
Traffic offloaded analysis
• Configuration Before offloading
– Clicking the sites will activate/deactivate them (mouse mode)
– Supports Active Sets
– Activate/deactivate sites to reflect current network status
• Configuration After offloading
– Activate the new sites to offload the traffic from the existing sites.
– Supports the Mouse Mode or by Active Set
81
Traffic offloaded analysis• The Report File
– Tabulated Data of Traffic Offloads and %
• The Map View– Map “Pointers” of
Traffic Movement
82
Class Agenda –x-Wizard Features
• Fast Analysis Switching-Show Delta• Export Site Reports• Find by ID & Cell Viewing changes• Display Band Profiles and Fade Margin Tool
83
New x-Wizard FeaturesFast Analysis Switching (View > Previously Run Analysis) Add notes to each analysis See any users analysis, not just your own Quickly show delta’s (differences) between like analysis so you
can see the effect of your changes from one analysis to another, and also export them to MapInfo for further study (screen grid)
Absolute Numbers -60 – (-62) = +2 (Positive Domain is Weaker)
84
New x-Wizard FeaturesSite Report Export (File > Export > Generate Site Report)
•Create custom reports
•Based on import/export fields
•Active or inactive sites
•Selectable sites
•Store Excel templates in the common folder
85
New x-Wizard FeaturesSite Search by Name or ID and WEX View Control
Active / Visible display separated Display Name or ID
Find by ID
86
New x-Wizard Features• Cell and TX Data Enhancements
User Defined Custom Fields
Site Attachments
Groups/Flags
87
New x-Wizard FeaturesUser Defined Fields
Used to Create your own custom definitions Added to Query tool so you can select all sites from a group Edit > Custom Fields Import and export ready
88
New x-Wizard FeaturesSite Attachments
• Link any file to a site
• Open the attachment from the Open button-requires the program to be installed (Word, Excel, IE)
• Link from your network with Browse
• URL (Internet Intranet)
89
New x-Wizard FeaturesGroups
• Edit menu to build the groups and add members to group. Example:– Group= Morphology
Member=Urban
• Can be assigned by active state/set, manual
• Import and export ready
90
New x-Wizard Features • Display Band Profile Tool
– Used to store a set of display bands that can be recalled using a dropdown
• Fade Margin Calculator– Basic fade margins can now
be calculated in x-Wizard rather than outside in spreadsheets
– Helps define “real” expected coverage based on design parameters and environmental variables
Questions???