NPSTC Meetings, November 2007 Margaret Daly and Sean O’Hara Syracuse Research Corporation New York Statewide Wireless Network Program RPC 700 MHz Interference Protection Analysis Software Algorithm and Use “The Schliemanator”

NPSTC Meetings, November 2007 SRC PROPRIETARY 2 Use of the NYS Software The software is for evaluation of RPC applications, specifically for evaluation under the TSB-88-based rules defined in the Region 8, 30, and MHz plans The software will be distributed free of charge for use by any of the RPCs The software was developed under Matlab, and will be compiled into a Windows application Versions have already been compiled, however the final revision and its distribution will wait until it can incorporate the final CAPRAD assignments —Still developing the final design of the user interface and user options that will be available

NPSTC Meetings, November 2007 SRC PROPRIETARY 3 Use of the NYS Software (cont) Terrain (3-sec) Pool Assignments Resident Data Output Word Report(s) html Report(s) s Output RPC or CAPRAD Timelines/Apps ULS/FCC Input Application (ebf/601) antenna.xls boundary.xls User only has to select the application file(s) Output reports include fully formatted text, tables, and graphics (propagation maps, interference areas, etc)

NPSTC Meetings, November 2007 SRC PROPRIETARY 4 Analysis Overview The Longley Rice Propagation model is used to predict interference from the applicant to the service areas of the deployed and planned sites Analysis is performed based on each application site, for each of the frequencies within the application Deployed sites and pool boundaries are identified with respect to the application site based on distance, co/adj channels, etc. A D1 D2 P1 P2 Basic geometry for application, deployed, and pool boundaries D: Deployed sites P: Pool boundaries

NPSTC Meetings, November 2007 SRC PROPRIETARY 5 Identification of Study Parameters Identify Deployed Sites/Licenses: —Find all sites within 100 km of applicant site (based on the coordinates of the of the application site and the deployed sites) that are co-channel to applicant (within 1kHz) —Find all sites within 20 km of applicant site that are adjacent-channel to applicant (within 20kHz) Indentify Pool Protection Regions —Since there are no actual site locations available to assess pool protection, the pool boundaries are used to measure distance to the application site —Find pool boundaries within 100 km of the applicant site (nearest point) that are also co-channel to applicant

NPSTC Meetings, November 2007 SRC PROPRIETARY 6 Reliability Calculation Compute the baseline Longley-Rice 3-second tile coverage for each incumbent (victim) within their jurisdictional area. —If pool assignment (not deployed), treat its jurisdiction/county as having ubiquitous 40 dBμ service levels. —Using the following formula to calculate reliability (default) Reliability R = 1 – Q[(S – N) – CPC)/ sigma)] —S: Tile received power (for pool regions, 40 dB μ ) —CPC: Channel Performance Criterion (18 dB) —N: Receiver Noise Floor (-124 dBm) —Sigma: Signal log normal standard variation (7 dB) —R ~97% in this case

NPSTC Meetings, November 2007 SRC PROPRIETARY 7 Area Reliability Degradation Evaluate the desired received power and reliability levels of all pool and deployed entities that were identified —At all tiles within each victim service area. —Calculate the number of tiles at 90% reliability (or greater) and the corresponding baseline area (M1). Consider the applicant’s effect upon these facilities. Re- evaluate the total number of tiles within each victim service area jurisdiction that achieve 90% reliability (or greater) in the present of the applicant’s interference. —This area is called M2 The Area Reliability Degradation (ARD) is the ratio —ARD = 1-M2/M1 or ((M1-M2)/M1)

NPSTC Meetings, November 2007 SRC PROPRIETARY 8 Analysis Specifications (cont.) Three tests are performed upon the applicant site —Responsible Radiation Control (Test 1) » For application site, 80% of the 50 dBu (-82 dBm) Protected Service Area (PSA) must lie within the jurisdictional boundary plus an extended buffer zone. —Deployed Site Protection: Individual (Test 2a) » Application must pose no more than 2.5% Area Reliability Degradation (ARD) at 90% reliability levels to any incumbent’s PSA (protected service area). —Deployed Site Protection: Aggregate (Test 2b) » All protected facilities in aggregate must receive no more than 5.0% cumulative area reliability degradation at 90% reliability levels, where the 5% would be exceeded by the introduction of the applicant —Pool Boundary Protection (Test 3) » Application must pose no more than 2.5% ARD at 90% reliability levels to any pool area’s PSA. (assume 40 dBu service level)

NPSTC Meetings, November 2007 SRC PROPRIETARY 9 —Responsible Radiation Control (Test 1) » Test is performed for each application site. Since each application site has multiple frequencies, it is performed for frequency. —Deployed Site Protection: Individual (Test 2a) » Test is performed for each incumbent (deployed) site. » Incumbent (deployed) sites are chosen by frequency (co/adj channel) and distance. —Deployed Site Protection: Aggregate (Test 2b) » Test is performed for each incumbent (deployed) site. » Includes power contributions from all co/adj channel deployed sites within 100 km of this incumbent site —Pool Boundary Protection (Test 3) » Test is performed for each incumbent (deployed) site. » Incumbent (deployed) sites are chosen by frequency (co/adj channel) and distance Analysis Specifications (cont.)

NPSTC Meetings, November 2007 SRC PROPRIETARY 10 Test Input(s) Each applicant may have multiple sites, and each site may have multiple frequencies. Tests are performed for each site in application —For each site, use the site selection mechanism to choose deployed sites and pool protection boundaries (based on distance co/adj channel) For Deployed Site Protection: Aggregate (Test 2b) —Aggregate deployed sites are included in this study —The selection distance is within 100 km each of the deployed sites under study.

NPSTC Meetings, November 2007 SRC PROPRIETARY 11 Test Inputs (cont.) The applicant information is specified in two excel files (xls) and one ebf file. —One xls file specifies the geometry of jurisdictional area » Used for Test 1, and for future interference determination if application is approved —One xls file specifies the antenna information for the site » Used for propagation studies The Ebf file specifies the site and applicant information —Such as location, ERP, contact information, etc., These files define all necessary information required from the applicant in order to evaluate the application

NPSTC Meetings, November 2007 SRC PROPRIETARY 12 Responsible Radiation Control Test 1: Requires M2/M1 >80% in order to pass D: incumbent (deployed ) P: planned (not deployed) A D1 D2 P1 P2 M1:Area of 50 dBu In Jurisdictional area + extended buffer +15 miles Jurisdictional area Extended buffer (5 miles) M2:Area of 50 dBu Jurisdictional area + extended buffer (50 dBu is ~ -82 dBm)

NPSTC Meetings, November 2007 SRC PROPRIETARY 13 Deployed Site Protection: Individual Test 2a: Requires (M1-M2)/M1 < 2.5% to pass A (s i ) D1 D2 P1 P2 M1: Area of 90% reliability level from D1 M2: 90% reliability level after D1 receives interference from application A Same test applies to D2

NPSTC Meetings, November 2007 SRC PROPRIETARY 14 Deployed Site Protection: Aggregate Test 2b: Requires (M1-M2)/M1 < 5.0% to pass A(s i ) D1 D2 P1 P2 M1: area of 90% reliability level from D1 M2: 90% reliability level after D1 receives interference from application A, and other deployed sites (D 2, D 12, D 22..) Same test applies to D2 and D 21 D 22 are selected accordingly D 11 D 12 D 11 D 12, are chosen within 100 km of D1 D 21 D 22

NPSTC Meetings, November 2007 SRC PROPRIETARY 15 Pool Boundary Protection Test 3a: Requires (M1-M2)/M1 < 2.5% to pass A (s i ) D1 D2 P1 P2 M1: area of 90% reliability level, assuming 40 dBµ in service area M2: 90% reliability level after P1 receives interference from application A Same test applies to P2

NPSTC Meetings, November 2007 SRC PROPRIETARY 16 If the applicant has multiple sites, then these tests(1, 2a, 2b, 3) will be repeated for each site. Automatic reports will are generated —MS word documents —One output report for each application site —Integrated text tables and graphics Very simple input and output —Input: Application (ebf, xls-antenna, and xls-service area boundary) —Output: Reports documenting results Using the Software

NPSTC Meetings, November 2007 SRC PROPRIETARY 17 Using the Software User clicks on a dialog box to select the input ebf file. —This ebf file contains transmitter and FCC license information —Same as what the frequency coordinator will eventually require for FCC filing In same directory as the ebf file, there is an excel files for jurisdictional area (R) and one or more excel files for antenna patterns. —Each site is associated with one particular antenna. —When antenna files are missing, an omni-directional antenna pattern is assumed. —Programs takes the jurisdictional area boundary and computes two, buffered, areas. » One with 5 miles buffer (R1) the other 15 miles buffer (R2).

NPSTC Meetings, November 2007 SRC PROPRIETARY 18 Using the Software: Beta Select input ebf Which finds the other files Select study resolution(s) And identifies Other sites and protected areas to examine

NPSTC Meetings, November 2007 SRC PROPRIETARY 19 Using the Software: Beta Select input ebf Which finds the other files And identifies Other sites and protected areas to examine

NPSTC Meetings, November 2007 SRC PROPRIETARY 20 Example of Formats Input Documents —Antenna XLS FileAntenna XLS File —Boundary XLS FileBoundary XLS File Output Documents —Overview DocumentOverview Document » Summary of Application » Summary of Results —Detailed Analysis/Results DocumentDetailed Analysis/Results Document » More detailed results of each test » Created for each transmitter