RF TAS Validation Public Report

FCC ID: B94-TNQ225WWPT

RF Exposure Info

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FCCID_4446995

                  TAS ALGORITHM VALIDATION
                                    TEST REPORT
                                  XMM 7560 Cellular Modem embedded in Fibocom M2 L860-GL
EUT Description
                                  cellular module
Brand Name                        Fibocom M2

Model Name                        L860-GL
                                  Generic
FCC ID
                                  (see note in Section 6)
Date of Test Start/End            2019-05-20 /2019-05-29
                                  LTE, UMTS
Features
                                  (see Section 6)


Applicant                         Intel Mobile Communications
                                  100 Center Point Circle, Suite 200
Address                           Columbia, South Carolina 29210
                                  USA
Contact Person                    Steven Hackett

Telephone/Fax/ Email              steven.c.hackett@intel.com




Test Report identification        180709-01.TR01
                                  Rev. 00
Revision Control                  This test report revision replaces any previous test report revision
                                  (see Section 1)




                                       Intel Corporation S.A.S – WRF Lab
                             425 rue de Goa – Le Cargo B6 - 06600, Antibes, France
                                     Tel. +33493001400 / Fax +33493001401
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Table of Contents
1.     Document Revision History .......................................................................................................................................... 3
2.     Document Scope............................................................................................................................................................ 3
3.     General Conditions, Competences and Guarantees .................................................................................................. 3
4.     Environmental Conditions ............................................................................................................................................ 3
5.     Test Samples .................................................................................................................................................................. 3
6.     EUT Features .................................................................................................................................................................. 4
7.     TAS Algorithm Validation Considerations .................................................................................................................. 5
     7.1. ALGORITHM VALIDATION USING CONDUCTED POWER MEASUREMENT ............................................................................ 6
     7.1.1. RANGE OF PARAMETERS CONSIDERED FOR ALGORITHM VALIDATION ......................................................................... 6
8.     Summary of Validation Tests and Results .................................................................................................................. 9
Annex A.            Test Setup Description ................................................................................................................................. 10
     A.1     MEASUREMENT SYSTEM............................................................................................................................................ 10
                    Test Setup ................................................................................................................................................................. 10
                    Test Equipment List ................................................................................................................................................... 11
Annex B.            Validation Test Results ................................................................................................................................. 12
     B.1     VALIDATION USING CONDUCTED POWER MEASUREMENT ............................................................................................ 12
     B.2     TAS VALIDATION TESTS AND RESULTS ...................................................................................................................... 13
                    Fundamental Algorithm Validation for a Range Control Parameters ......................................................................... 13
       B.2.1.1      Validation for LTE in Band 2 ...................................................................................................................................... 13
       B.2.1.2      Validation of UMTS/WCDMA Band 2 ........................................................................................................................ 17
                    Algorithm Validation According to Time Varying Power Control Test Sequences ..................................................... 22
                    Algorithm Validation for Drop Connection and Reboot .............................................................................................. 25
       B.2.3.1      Connection Drop and Reboot Scenario Validation .................................................................................................... 25
       B.2.3.2      Handover Validation from LTE Band 2 to LTE Band 4 .............................................................................................. 27
       B.2.3.3      Handover Validation from LTE Band 2 to WCDMA Band 4 ....................................................................................... 28
Annex C.            Photographs .................................................................................................................................................. 29
     C.1     TEST SETUP ............................................................................................................................................................. 29
     C.2     TEST SAMPLE AND TEST PLATFORM .......................................................................................................................... 30




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1. Document Revision History
   Revision #           Date                        Modified by                                      Revision Details
    Rev. 00          2019-09-09                    Walid EL HAJJ                                       First Issue



2. Document Scope
This document describes the Time-Averaging SAR (TAS) algorithm validation test setup and measurement results for the
XMM 7560 Cellular Modem incorporated in the Fibocom M2 L860-GL cellular module. The implementation details and TAS
operating characteristics are described in the “Operation Descriptions” document (confidential); therefore, only a brief
summary of the TAS operating parameters is included in this test report. Therefore, only a brief summary of the TAS
operating parameters is included in this test report. The validation tests are performed using mainly conducted power
measurements. Details of the conducted power measurement test setup, test procedures and validation results are included
in Annex A and B. The validation results demonstrate that TAS can reliably apply dynamic power control to ensure SAR
compliance in real-time

3. General Conditions, Competences and Guarantees
   Intel Corporation SAS Wireless RF Lab (Intel WRF Lab) is an ISO/IEC 17025:2005 testing laboratory accredited by
    the American Association for Laboratory Accreditation (A2LA) with the certificate number 3478.01.
   Intel Corporation SAS Wireless RF Lab (Intel WRF Lab) is an Accredited Test Firm recognized by the FCC, with
    Designation Number FR0011.
   Intel WRF Lab only provides testing services and is committed to providing reliable, unbiased test results and
    interpretations.
   Intel WRF Lab is liable to its client for maintaining confidentiality of all information and test results relating to the item
    under test.
   Intel WRF Lab has developed calibration and proficiency programs to ensure the measurement equipment used are
    providing correlated and reliable test results to its customers.
   This report is only relevant to the item that has undergone testing.
   This report does not imply an approval of the product by the Certification Bodies or competent Authorities.

4. Environmental Conditions
During the tests, the environmental conditions at the site where the measurements were performed are given in the following
table:

                                             Temperature                   22ºC

                                                Humidity                   43%


5. Test Samples
 Sample         Control #            Description                 Model                    Serial #                      Note

            180709-01.S01          Modem Module            L860 GL PR3.0              6A13JM0053
                                                                                                                Conducted Power
    #1
            180709-01.S07          Extender Board                   -                        -                       Tests




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6. EUT Features
 Brand Name                 Fibocom M2
 Model Name                 L860-GL
 FCC ID                     Generic*
                            +XGENDATA: " XG756ES30S7E10NANNDEFXOC619181063645
                            M2_7560_XMM7560_REV_1.0_RPC_NAND_ULTRA3 2019-Apr-22 18:56:00
 Software Version/
 Date                       *XG756ES30S7E10NANNDEFXOC619181063645__M2_7560_01.1916.00*"
                            "*"
                            "FAB-CODE:7*SDRAMVendor=0x00 (N/A)"
                            The Fibocom M2 L860-GL module supports only UMTS and LTE, without carrier aggregation. The
                            applicable frequency bands and operating modes are identified in the following table, where North
                            America bands are shown in bold.

                                     Mode                           Bands                                      Supported Tx Mode
                                                                                              WCDMA           HSDPA       HSUPA          DC-HSDPA
                                                         FDD I (1920.0 – 1980.0 MHz)                                                       
                                                        FDD II (1850.0 – 1910.0 MHz)                                                       
                               WCDMA / HSPA+            FDD IV (1710.0 – 1755.0 MHz)                                                       
                                                         FDD V (824.0 – 849.0 MHz)                                                         
                                                        FDD VIII (880.0 – 915.0 MHz)                                                       
                                     Mode                           Bands                            Supported Channel Bandwidth (MHz)
                                                                                               1.4        3         5         10         15        20
                                                        Band 1 (1920.0 – 1980.0 MHz)                                                            
                                                        Band 2 (1850.0 – 1910.0 MHz)                                                          
                                                        Band 3 (1710.0 – 1785.0 MHz)
                                                        Band 4 (1710.0 – 1755.0 MHz)                                                          
 Supported                                               Band 5 (824.0 – 849.0 MHz)                                                           
 Wireless
                                                        Band 7 (2500.0 – 2570.0 MHz)                                                            
 Configurations and
 Operating Modes                                         Band 8 (880.0 – 915.0 MHz)                                        
                                                        Band 12 (699.0 – 716.0 MHz)                                                           
                                                        Band 13 (777.0 – 787.0 MHz)                                          
                                   LTE FDD              Band 14 (788.0 – 798.0 MHz)                                          
                                                        Band 17 (704.0 – 716.0 MHz)                                          
                                                         Band 18 (815.0 – 830.0 MHz)                                                          
                                                         Band 19 (830.0 – 845.0 MHz)                                                          
                                                         Band 20 (832.0 – 862.0 MHz)                                                            
                                                       Band 25 (1850.0 – 1915.0 MHz)                                                          
                                                        Band 26 (814.0 – 849.0 MHz)                                                           
                                                         Band 28 (703.0 – 748.0 MHz)                                                          
                                                       Band 30 (2305.0 – 2315.0 MHz)                                                          
                                                       Band 66 (1710.0 – 1780.0 MHz)                                                          
                                                       Band 38 (2570.0 – 2620.0 MHz)                                                            
                                                       Band 39 (1880.0 – 1920.0 MHz)                                                            
                                   LTE TDD
                                                       Band 40 (2300.0 – 2400.0 MHz)                                                            
                                                       Band 41 (2496.0 – 2690.0 MHz)                                                            
*Note: The algorithm validation is host independent. This report can be used for any host with TAS parameters in the validation range.


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7. TAS Algorithm Validation Considerations
As described in the “Operation Descriptions” document, TAS has 5 parameters that are accessible to host devices
incorporating the XMM 7560 Cellular Modem. There are two additional control and operating parametes that are derived
from these 5 accessible parameters. The parameters are identified in Table 1 below. An illustration of TAS functionality,
according to these parameters, is shown in Figure 1. Since TAS is fully contained within the XMM 7560 Cellular Modem,
other than allowing a host device to select the accessible parameters, TAS operation is fully independent of the host product.

                                       Table 1 – XMM 7560 Operating Parameters

                 Accessible Parameters                        Derived Paremeters
                                                Avg_SAR_LowThresh = Avg_SAR_UppThresh –
               Avg_SAR_UppThresh
                                                DPR_OFF_SAR_Offset
                                                Max_Power_DPR_ON = Avg_SAR_UppThresh –
               DPR_ON_SAR_Offset                DPR_ON_SAR_Offset
               DPR_OFF_SAR_Offset
               Avg_SAR_Check_Period
               Avg_SAR_Roll_Period




                 Figure 1 – Power control dynamics of TAS Algorithm for ensuring SAR compliance

When XMM 7560 operates in the end user environment, TAS is always enabled; end users do not have the option to disable
TAS. Therefore, the time-averaged power (Avg_SAR_Power) is always kept below the specified upper power threshold
(Avg_SAR_UppThresh) and SAR compliance is determined in real-time at each Avg_SAR_Check_Period according to
the time-averaging window Avg_SAR_Roll_Period.          The recommended settings of Avg_SAR_Roll_Period
and Avg_SAR_Check_Period for the XMM 7560 Cellular Modem are 100 sec and below 1 sec, respectively.




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7.1.      Algorithm Validation using Conducted Power Measurement
TAS operating characteristics and algorithm implementation have been validated using conducted power measurement
according to parameters that are applicable to the host products. TAS is fully self-contained within the XMM 7560 and, other
than the power recording time interval used for UMTS and LTE, 10 msec vs. 1 msec, the same power control mechanism
is applied to both 3G and 4G. Since TAS operations are independent of frequency band and wireless mode, and SAR
compliance can be established at the maximum time-averaged power level specified by Avg_SAR_UppThresh, validation
of the algorithm and implementation using conduct power measurement test configurations is appropriate and acceptable.

The following XMM 7560 operating conditions are used in the conducted power measurement configurations to validate
TAS algorithm implementation. The conducted power measurement test setup is described in Annex A.1.

    1. under maximum output power conditions for UMTS and LTE, according to a diverse range of operating and
       control parameters
    2.   under normal UMTS and LTE operations in Connected states, according to specific power ocntrol test sequences
    3.   when a connection is dropped and re-established
    4.   when a handover occurs between frequency bands and modes within LTE or UMTS
    5.   when a handover occurs between LTE and UMTS


7.1.1. Range of Parameters Considered for Algorithm Validation
TAS algorithm validation has been performed for UMTS and LTE according to cases with different combinations of operating
parameters listed in Table 2, see details in Tables B.1 and B.2. All attenuations and offsets are accounted for in uplink
power measurements at the Main Antenna port. This is described in Annex A.1.1 and illustrated in the test setup photos in
Annex A.1.3. The test results are shown in Annex B.2.1.1 for LTE and Annex B.2.1.2 for UMTS.

                                             Table 2 – Range of Parameters

                                                         Parameters
                                               Avg_SAR_UppThresh
                                               Avg_SAR_LowThresh
                                               Max_Power_DPR_ON

7.1.2. Time Varying Power Control Test Sequences Considered for Algorithm Validation
Two types of power control test sequences are used in the conducted power measurement test setup for TAS algorithm
validation in selected mode/band configurations under normal LTE and UMTS operations in Connected State. The first test
sequence (#1) is for validating the functionality of DPR (Dynamic Power Reduction) according to the values of
Max_Power_DPR_OFF, Max_Power_DPR_ON, Avg_SAR_UppThresh and Avg_SAR_LowThresh specified for the
mode/band. The second test sequence (#2) consists of a pre-determined sequence of random or arbitrary power levels and
durations for validating overall TAS functionality to ensure SAR compliance through dynamic power control.
 1. Sequence #1: Starting at below Avg_SAR_LowThresh for a fixed duration, the sequence is followed by a sufficiently
     long duration of transmission at Max_Power_DPR_OFF until DPR is turned ON. After it is confirmed that
     Avg_SAR_Power remains between Avg_SAR_UppThresh and Avg_SAR_LowThresh, the XMM 7560 is
     commanded to reduce output power to below Avg_SAR_LowThresh to ensure DPR is subsequently turned OFF.
 2. Sequence #2: A power profile consisting of varying levels between Max_Power_DPR_OFF and below
    Max_Power_DPR_ON, with varying transmission durations in the range of 1 – 20 seconds, are sent by the Call Box
    to the XMM 7560. The power levels and intervals used in the tests have been determined according to preliminary test
    results.
The time durations and power levels used for the two test sequences are listed in Table 3 and Table 4. These sequences
are applied to validate TAS in both UMTS and LTE. In Table 3, for sequence #1, the power level is set to an initial level
below Max_Power_DPR_ON and followed by maximum output power (Max_Power_DPR_OFF) requests from the Call
Box to verify DPR control and TAS responses. This is then followed by a Call Box output power request of below
Max_Power_DPR_ON to ensure proper TAS response is observed when DPR is disabled. Table 4 consists of the
sequence of power levels and time durations sent from the Call Box to XMM 7560 to validate dynamic power control

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under arbitrary/random conditions, similar to those experienced by typical end users, to demonstrate DPR reliability. Both
of these sequences are illustrated in Figure 2.

                 Table 3 – Test Sequence #1                                      Table 4 – Test Sequence #2

        Sequence 1                                                   Sequence 2
          Time     Duration   Tx_Power        Notes                     Time       Duration   Tx_Power         Notes
           150       150        5 dBm     < Low Threshold                150         150        5 dBm         < Lower
           350       200          23         Max power                   165          15          14         Upper-4dB
           720       370          13        Lower -2 dB                  185          20          18           Upper
                                                                         205          20         20,5     (Upper+Pmax)/2
                                                                         215          10          10         Upper-8dB
                                                                         235          20          23            Pmax
                                                                         250          15          18           Upper
                                                                         265          15          11         Upper-7dB
                                                                         285          20          23            Pmax
                                                                         305          20          13         Upper -5dB
                                                                         320          15          18           Upper
                                                                         330          10          12         Upper-6dB
                                                                         340          10         20,5      Upper+max/2
                                                                         360          20          11        Upper -7 dB
                                                                         380          20          11        Upper - 7dB
                                                                         390          10         20,5      Upper+max/2
                                                                         400          10          12         Upper-6dB
                                                                         415          15          18           Upper
                                                                         435          20          13         Upper -5dB
                                                                         455          20          23            Pmax
                                                                         465          10          11         Upper-7dB
                                                                         480          15          18           Upper
                                                                         500          20          23            Pmax
                                                                         515          15          10         Upper-8dB
                                                                         535          20         20,5     (Upper+Pmax)/2
                                                                         555          20          18           Upper
                                                                         570          15          14         Upper-4dB
                                                                         720         150           5     < Lower Threshold


Note:    Pmax=Max_Power_DPR_OFF (23 dBm),
         Upper=Avg_SAR_UppThresh (18 dBm) and Lower = Avg_SAR_LowThresh (15 dBm)




                               Figure 2 – Plot of Tx power for test sequence #1 and #2
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For each test sequence, TAS should respond by maintaining Avg_SAR_Power at or below Avg_SAR_UppThresh
according to DPR requirements; therefore, SAR measurement at Avg_SAR_UppThresh according to normally required
SAR procedures is all that would be necessary to determine compliance. These are demonstrated by the supporting test
results in Annex B.2.2.

7.1.3.   Connection Drop and Technology/Band Handover Validation
In order to demonstrate that TAS functions as expected during a drop connection or handover, the first test sequence (#1)
in Section 7.2 (Table 2) is adapted for validating algorithm control continuity during such temporarily discontinued
transmissions. A connection drop or handover is initiated after DPR is turned ON and Avg_SAR_Power is maintained
between Avg_SAR_UppThresh and Avg_SAR_LowThresh. When the connection is re-established, maximum output
power is requested by the Call Box to ensure DPR remains ON and TAS response is verified to ensure algorithm control
continuity. These are demonstrated by the validation results in Annex B.2.3.




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8. Summary of Validation Tests and Results
The following table lists the types of TAS algorithm validation tests performed and the corresponding Tables and Annexes
describing the test configurations and validation results. Description of the conducted power measurement test setup and
photos are included in Annex A.




           Validation Type           Test Configurations                               Test Results

                                     Table B1                  LTE: Annex B.2.1.1
     Range of TAS Parameter
                                     Table B2                  UMTS: Annex B.2.1.2

     Time Varying Test
                                     Table B3                  LTE & UMTS: Annex B.2.2
     Sequences

     Connection Drop                 Table B4                  Drop connection: Annex B.2.3.1

                                     Table B5                  LTE B2 to LTE B4 handover: Annex B.2.3.2
     Handover
                                     Table B6                  LTE B2 to UMTS B4 handover: Annex B.2.3.3




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Annex A. Test Setup Description
A.1      Measurement System

         Test Setup
The conducted power measurement test setup is described in the following and illustrated in Figure A.

       The Fibocom M2 L860-GL module, which contains the XMM 7560 Cellular Modem, is installed in an Intel Test
        Platform (DUT) to emulate a generic host device and to provide proper interface for the Call Box and test
        equipment. Photos of the Fibocom module, XMM 7560 and test equipment are included in included in Annex
        A.1.3 and A.3.
       A control PC is used to configure the Call Box to send power control test sequences to the XMM 7560, according
        to those described in Section 7 and Annex B.
       Uplink signal power is monitored by the Spectrum Analyzer and record by the PC with a time resolution of 25
        msec, which is substantially less than the power adjustment interval (Avg_SAR_Check_Period) of 1 sec used for
        XMM 7560.
       The values of Avg_SAR_Power are read from the XMM 7560 by the PC at each Avg_SAR_Check_Period
       In additional to power results, the time sequence of power control commands and power samples are also
        recorded by the PC to enable results to be correlated and plotted.Uplink signal from the XMM 7560 is fed through
        a 3 dB Power Splitter, which delivers an equal amount of signal to the Sectrum Analyser and the Call Box. The
        Splitter has high isolation between the Spectrum Analyser and the Call Box. Due to different Uplink/Downlink
        frequencies and the zero span time-domain measurement used, interference of Uplink and Downlink sigals is
        avoided.
       Path loss in the power measurement setup from the XMM 7560 Main Antenna port to either the Call Box or the
        Spectrum Analyser is 17.58 dB, with less than 0.1 dB difference between Band 2 and Band 4 (used for the tests).




                      Figure A.1 – Validation using conducted power measurement test setup.



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         Test Equipment List
The Equipments used for the conducted power measurement test setup are listed below. The Test Platform (DUT), test
setup and associated equipment are shown in Annex C.

   ID#           Device           Type/Model             Serial #        Manufacturer    Cal. Date      Cal. Due Date

             Communication                                                  Rohde &
  0319                             CMW500                152721                         2018-04-12        2020-04-12
                Tester                                                      Schwarz
                Spectrum                                                    Rohde &
  0322                               FSL6                102143                         2018-04-13        2020-04-13
                Analyzer                                                    Schwarz
                 Power                                                                  Attenuation and loss verified
    -                               PE2083                  -             Pasternack
                 Divider                                                                         before use




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Annex B. Validation Test Results
B.1       Validation using Conducted Power Measurement
The TAS algorithm and its reliability for ensuring SAR compliance have been validated using conducted power
measurements, according to the validation procedures described in Section 7.1 of this test report. The validations include
both LTE and UMTS. The test configurations and validation results are shown in the sub-sections of this Annex. The wireless
operating modes and transmission configurations used for the algorithm validation tests are described in Tables B1 – B6.
Following each Table, TAS responses according to Avg_SAR_Power, which is time averaged over
Avg_SAR_Roll_Period, and the corresponding (instantaneous) output power transmitted by the XMM 7560 Cellular
Modem, measured by the Spectrum analyzer, are plotted separately for the test configurations after each Table. The results
verify that DPR is turned ON when Avg_SAR_Power reaches Avg_SAR_UppThresh and TAS is able to maintain
Avg_SAR_Power between Avg_SAR_UppThresh and Avg_SAR_LowThresh until Avg_SAR_Power falls below
Avg_SAR_LowThresh and DPR is turned OFF.
For the M2 module, XMM 7560 is validated with Avg_SAR_Check_Period and Avg_SAR_Roll_Period set to 1 sec and
100 sec, respectively. The total duration for each test is 12 minutes (720 sec). The maximum output power available from
the specific XMM 7560 Cellular Modem used for the validation tests is about 22 - 23 dBm. The following is a brief description
of the test configurations:
     Table B1 and Table B2 – Configurations used to verify TAS responses to power control for the operating parameters
      in Table 2 of Section 7.1.1. The test starts from a reboot condition and is followed by maximum output power requests
      from the Call Box to the XMM 7560. There are 6 cases each for UMTS and LTE.
     Table B3 – Wireless mode configurations used for testing the test sequences listed in Table 2 and Table 3 of Section
      7.2.
     Table B4 – Wireless mode configurations used for testing a drop-connection, which is introduced after DPR is turned
      ON due to maximum power requests from the Call Box. After the connection is reestablished, maximum output power
      is again requested to demonstrate DPR and TAS control continuity with respect to power accumulated before and after
      the drop-connection condition. In addition, instead of a drop-connection, the test is repeated by replacing the drop-
      connection with a reboot.
     Table B5 – Wireless mode configurations used for testing handover from LTE B2 to LTE B4, similar to configurations
      used for drop-connection.
     Table B6 – Wireless mode configurations used for testing handover from LTE B2 to UMTS B4, similar to configurations
      used for drop-connection.




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B.2         TAS Validation Tests and Results

            Fundamental Algorithm Validation for a Range Control Parameters

B.2.1.1     Validation for LTE in Band 2
                                    Table B1 – Test Cases for LTE Band 2 using 1 RB and QPSK

    Test                         Max           Roll         Check       Avg_SAR_UppThresh         Avg_SAR_LowThresh         Max_Power_DPR_ON
                   Band
   Case #                       Power         Period        Period            [dBm]                     [dBm]                     [dBm]
      1                                                                           22                        21                        20

      2                                                                           22                        19                        16

      3                                                                           20                        19                        18
                    LTE
                                23 dBm        100 sec        1 sec
      4              B2
                                                                                  20                        17                        14

      5                                                                           18                        17                        16

      6                                                                           18                        15                        12


  Note: Values for Max Power, Avg_SAR_UppThresh, Avg_SAR_LowThresh and Max_Power_DPR_ON indicated above are approximated. The
      exact values for these are set according to the actual Max Power at the time of testing, accounting for tolerance, and the range (in dB) for
  Avg_SAR_UppThresh, Avg_SAR_LowThresh and Max_Power_DPR_ON. These can introduce an apparent shift of the curves relative to Max
                                          Power shown in the plots. However, they have no impact to TAS.




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           Case #1: LTE Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]         Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                22                               21                                 20




           Case #2: LTE Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]         Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                22                               21                                 18




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Test Report No: 180709-01.TR01                                                                Rev. 00


           Case #3: LTE Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]         Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                22                               19                                 18




           Case #4: LTE Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]         Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                22                               19                                 16




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Test Report No: 180709-01.TR01                                                                Rev. 00


           Case #5: LTE Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]         Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                20                               19                                 18




           Case #6: LTE Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]         Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                20                               19                                 16




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Test Report No: 180709-01.TR01                                                                                                           Rev. 00

  B.2.1.2 Validation of UMTS/WCDMA Band 2

                                     Table B2 – Test Cases for UMTS/WCDMA Band 2 – RMC

   Test                          Max           Roll          Check       Avg_SAR_UppT          Avg_SAR_LowT         Max_Power_DPR
                  Band
  Case #                        Power         Period         Period       hresh [dBm]           hresh [dBm]           _ON [dBm]
     1                                                                           22                   21                    20

     2                                                                           22                   19                    16

     3                                                                           20                   19                    18
                 WCDMA
                               22.5 dBm       100 sec        1 sec
                  B2
     4                                                                           20                   17                    14

     5                                                                           18                   17                    16

     6                                                                           18                   15                    12


   Note: Values for Max Power, Avg_SAR_UppThresh, Avg_SAR_LowThresh and Max_Power_DPR_ON indicated above are
 approximated. The exact values for these are set according to the actual Max Power at the time of testing, accounting for tolerance,
   and the range (in dB) for Avg_SAR_UppThresh, Avg_SAR_LowThresh and Max_Power_DPR_ON. These can introduce an
            apparent shift of the curves relative to Max Power shown in the plots. However, they have no impact to TAS.




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 Test Report No: 180709-01.TR01                                                                                    Rev. 00

Results for the test cases in Table B2 are shown in the following plots.

Note: The maximum output power in WCDMA mode for this test sample was about 22.5 dBm, which was 0.5 dB lower than the 23 dBm
specified; therefore, Max_Power_DPR_ON and Max Power_DPR_OFF are shifted lower by 0.5 dB in plots for all WCDMA test cases.
While Max_Power_DPR_OFF was 0.5 dB lower, Avg_SAR_UppThresh and Avg_SAR_LowThresh were not adjusted. This does not
seem to have any noticeable impact to TAS control.

           Case #1: WCDMA Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
        Avg_SAR_UppThresh [dBm]       Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                  22                             21                                 20




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Test Report No: 180709-01.TR01                                                              Rev. 00


         Case #2: WCDMA Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]       Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                22                             21                                 18




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Test Report No: 180709-01.TR01                                                              Rev. 00

         Case #3: WCDMA Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]       Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                22                             19                                 18




         Case #4: WCDMA Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]       Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                22                             19                                 16




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Test Report No: 180709-01.TR01                                                              Rev. 00

         Case #5: WCDMA Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]       Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                20                             19                                 18




         Case #6: WCDMA Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]       Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                20                             19                                 16




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 Test Report No: 180709-01.TR01                                                                                                             Rev. 00



           Algorithm Validation According to Time Varying Power Control Test Sequences


                 Table B3 – Test Cases for Test Sequences in Tables 2 and 3 for LTE and WCDMA - Band 2

   Test                                                       Check        Avg_SAR_UppT          Avg_SAR_LowT         Max_Power_DPR
                Band         Max Power      Roll Period
  Case #                                                      Period        hresh [dBm]           hresh [dBm]           _ON [dBm]
     1                                                                             18                   15                    14
                LTE B2         23 dBm
     2                                                                             18                   15                    14
                                              100 sec          1 sec
     3                                                                             18                   15                    14
             WCDMA B2         22.5 dBm
     4                                                                             18                   15                    14


     Note: Values for Max Power, Avg_SAR_UppThresh, Avg_SAR_LowThresh and Max_Power_DPR_ON indicated above are
 approximated. The exact values for these are set according to the actual Max Power at the time of testing, accounting for tolerance, and
   the range (in dB) for Avg_SAR_UppThresh, Avg_SAR_LowThresh and Max_Power_DPR_ON. These can introduce an apparent
                   shift of the curves relative to Max Power shown in the plots. However, they have no impact to TAS.



Results for the test cases in Table B3 are shown in the following plots.




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Test Report No: 180709-01.TR01                                                                Rev. 00

           Case #1: LTE Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]         Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                18                               15                                 14




           Case #2: LTE Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]         Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                18                               15                                 14




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Test Report No: 180709-01.TR01                                                                Rev. 00

         Case #3: WCDMA Band 2 – Max Power 22.5 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]        Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                 18                              15                                14




         Case #4: WCDMA Band 2 – Max Power 22.5 dBm – Roll Period 100 sec – Check Period 1 sec
      Avg_SAR_UppThresh [dBm]        Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                 18                              15                                14




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Test Report No: 180709-01.TR01                                                                               Rev. 00

         Algorithm Validation for Drop Connection and Reboot

B.2.3.1 Connection Drop and Reboot Scenario Validation

                           Table B4 – Test Cases for LTE connection drop and reboot

                         Max       Roll        Check      Avg_SAR_UppT        Avg_SAR_LowT   Max_Power_DPR
 Test Case #   Band
                        Power     Period       Period      hresh [dBm]         hresh [dBm]     _ON [dBm]
  1: Drop
                                                                 18                17             14
 Connection
               LTE B2   23 dBm    100 sec      1 sec
 2: Reboot                                                       18                17             14




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 Test Report No: 180709-01.TR01                                                                    Rev. 00

Results for the test cases in Table Table B4 are shown in the following plots.

          Case #1: DROP - LTE Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
        Avg_SAR_UppThresh [dBm]         Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                   18                               15                                14




         Case #2: REBOOT - LTE Band 2 – Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
        Avg_SAR_UppThresh [dBm]         Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                   18                              15                                14




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 Test Report No: 180709-01.TR01                                                                                                             Rev. 00




B.2.3.2 Handover Validation from LTE Band 2 to LTE Band 4
                                Table B5 – Test Case for Handover from LTE Band 2 to LTE Band 4

  Test                                                        Check        Avg_SAR_UppT          Avg_SAR_LowT         Max_Power_DPR
               Band         Max Power       Roll Period
 Case #                                                       Period        hresh [dBm]           hresh [dBm]           _ON [dBm]
              LTE B2
    1                         23 dBm          100 sec          1 sec               20                   17                    16
              LTE B4


     Note: Values for Max Power, Avg_SAR_UppThresh, Avg_SAR_LowThresh and Max_Power_DPR_ON indicated above are
 approximated. The exact values for these are set according to the actual Max Power at the time of testing, accounting for tolerance, and
   the range (in dB) for Avg_SAR_UppThresh, Avg_SAR_LowThresh and Max_Power_DPR_ON. These can introduce an apparent
                   shift of the curves relative to Max Power shown in the plots. However, they have no impact to TAS.




Results for the test case in Table B5 are shown in the following plot.
Note: This handover test was done at a different time from all of the above tests. The LTE Max_Power_DPR_ON and
Max_Power_DPR_OFF levels were about 0.5 dB lower than specified due to tune-up tolerances (±1 dB) relating to board temperature
introduced power drift. This has no impact on TAS operations.

                                Case #1: Handover LTE Band 2 > LTE Band 4
                         Max Power 23 dBm – Roll Period 100 sec – Check Period 1 sec
          Avg_SAR_UppThresh [dBm]        Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                   20                                17                              16




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 Test Report No: 180709-01.TR01                                                                                                           Rev. 00

B.2.3.3 Handover Validation from LTE Band 2 to WCDMA Band 4

                            Table B6 – Test Case for Handover from LTE Band 2 to WCDMA Band 4

        Test                                                       Check        Avg_SAR_UppT          Avg_SAR_LowT         Max_Power_DPR
                    Band         Max Power       Roll Period
       Case #                                                      Period        hresh [dBm]           hresh [dBm]           _ON [dBm]
                   LTE B2          23 dBm                                               20                   17                    16
         1                                         100 sec          1 sec
                 WCDMA B4         22.5 dBm                                              18                   15                    14


          Note: Values for Max Power, Avg_SAR_UppThresh, Avg_SAR_LowThresh and Max_Power_DPR_ON indicated above are
      approximated. The exact values for these are set according to the actual Max Power at the time of testing, accounting for tolerance, and
        the range (in dB) for Avg_SAR_UppThresh, Avg_SAR_LowThresh and Max_Power_DPR_ON. These can introduce an apparent
                        shift of the curves relative to Max Power shown in the plots. However, they have no impact to TAS.




Results for the test case in Table B6 are shown in the following plot.

Note: This handover test was done at a different time from all of the above tests. The LTE Max_Power_DPR_ON and
Max_Power_DPR_OFF levels were about 0.5 dB lower than specified due to tune-up tolerances (±1 dB) related to board temperature
introduced power drift. This has no impact on TAS operations.

                             Case #1: Handover LTE Band 2 > WCDMA Band 4
                      Max Power 23 / 22.5 dBm – Roll Period 100 sec – Check Period 1 sec
        Avg_SAR_UppThresh [dBm]           Avg_SAR_LowThresh [dBm]           Max_Power_DPR_ON [dBm]
                20 / 18                            17 / 15                             16 / 14




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 Test Report No: 180709-01.TR01                                                                                      Rev. 00


Annex C. Photographs
C.1       Test Setup




Fibocom Module with XMM 7560 mounted on the Intel Test Platform, placed on top of the Spectrum Analyzer and Call Box CMW 500,
which are under GPIB control through the PC (see Annex A).




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Test Report No: 180709-01.TR01                                                                               Rev. 00

C.2    Test Sample and Test Platform

                                                  Sample #01

                 Fibocom Module Front                                             Fibocom Module Back




             Extender Board – Test Platform                          Module monted on the Extender Board




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Document Created: 2019-09-09 20:08:28
Document Modified: 2019-09-09 20:08:28

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