Interference Avoidance Procedures

0133-EX-ST-2011 Images

Tecore Inc.

2011-03-02ELS_113831

                               Interference Avoidance Procedures

        The advanced technology testing as identified in the submitted STA application is to be
performed on location at 7061 Columbia Gateway Drive, Columbia, Howard County, Maryland.
This testing is to include all advanced technology feature sets (i.e., voice, data, etc.) in a standard
macro radio base station configuration as specified by 3GPP standard specifications. All RF
emissions associated with radio base stations used for the testing of the technologies have been
type approved. The commercial UE equipment is industry standard and meets all 3GPP
specification requirements.

        Tecore will employ the following procedures prior to any specific test and demonstration
activity under the STA:

   1. Validate Designated Test Spectrum

               The designated test spectrum is validated over a monitoring period. The
               utilization of industry-standard RF spectrum sweeping equipment will validate the
               test RF spectrum by confirming no other carriers are broadcasting in the specified
               spectrum domain. Prior to any RF emissions by the test radio base station,
               additional RF spectrum sweeps will be performed to ensure that no carrier is
               broadcasting on the test frequencies.

   2. Equipment Validation

               The radio base station equipment will be stage tested prior to any test phase.
               Stage testing includes the process of validating all radio emission parameters per
               specifications with industry standard test equipment. The test methodology is
               based on common industry practice for normal operation of any advanced
               technology radio base station technology.

   3. Preventive Interference Measures

               Preventive measures to ensure non-interference to license holders are key to the
               success of our testing. Active monitoring utilizing industry standard RF spectrum
               monitoring test equipment will remain present during all phases of the test
               period. Any indication of the presence of RF interference will cause the test
               phase to be terminated immediately.

   4. Test Configuration

               The main beam width orientation will be ~220 degrees with ± 10 degrees
               adjustments. The distance is max is 15 kilometers from site location. The
               maximum height of the directional antennas will be ~45 feet from ground level.


        It is not in the best interest of Tecore to create RF interference of any kind as it
invalidates our test goals. A conservative approach to the testing has been adopted for the
duration of the STA. Adherence to FCC requirements are paramount in the performance of
Tecore’s testing and demonstration activities.

        The results of the area frequency analysis for the initial testing and demonstration have
identified the following clear frequencies in the test area and these are the initial frequencies
intended to be used under the STA:

  DL UARFCN          DL Center Frequency (MHz)       UL UARFCN        UL Center Frequency (MHz)
     10612                     2122.4                    9662                   1932.4
     10637                     2127.4                    9687                   1937.4
     10662                     2132.4                    9712                   1942.4
     10687                     2137.4                    9737                   1947.4
     10737                     2147.4                    9787                   1957.4
     10762                     2152.4                    9812                   1962.4

       A similar process will be undertaken, consistent with the above-described procedures, for
additional testing and demonstration in the future.



Document Created: 2011-03-02 17:40:45
Document Modified: 2011-03-02 17:40:45

© 2025 FCC.report
This site is not affiliated with or endorsed by the FCC