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Huawei Technologies Co., Ltd. AddressHuawei Industrial Base,Bantian Longgang,Shenzhen 518128, P.R China Post ZIP518129 Page 1/1 To: EMCC Fax : NULL From:Zhang Xinghai Fax:0086-755-89653384 Tel:0086-755-28781375 Email address: [email protected] Http: www.huawei.com SubjectLetter of Confidentiality Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Gentlemen: This letter is to comply with Section 0.457(d) (2) (i) pertaining to confidential material. Huawei Technologies Co., Ltd. would like the following documents regarding this submission for FCC ID: QISC218-800 to be kept confidential: 1. Schematic diagram & PCB layout. 2. Block Diagram. 3. Parts list (BOM) Information. 4. Operational description. The above material contains trade secrets or technical data, which would customarily be guarded from competitors. We do not want these documents to be accessible to the general public. Sincerely, For and Behalf of: Huawei Technologies Co., Ltd. Zhang Xinghai EMC Laboratory Manager

Attestation Confidential Re: FCC ID QISC218-800 To: Martin Perrine [email protected] Applicant: Huawei Technologies Co., Ltd Correspondence Reference Number: 24865 731 Confirmation Number: TC318026 Date of Original Email: 11/28/2005 For the first question: A) regarding your answer and corresponding report statement, "For SAR test, the maximum power output is very important and essential; it does not matter with radio configurations. In this report, we use typical RC3 to estimate." Please demonstrate that the tested mode is worst case. Conducted power (average) for all possible modes is supporting information. From the test results as bellows, they showed the maximum output power with different modes. We found a little difference among them. So the mode used in the SAR test report could represent the worst case. HUAWEI C218 maximum output power with different modes. Maximum output power (dBm) Service Option Radio Configuration Modulation 1013 384 777 SO02 RC 1/1 O-QPSK 25.13 25.32 24.85 SO09 RC 2/2 O-QPSK 25.12 25.05 24.62 RC 3/3 HPSK 25.47 25.28 24.46 RC 4/3 HPSK 25.61 25.09 24.10 SO55 RC 5/4 HPSK 24.95 25.06 24.43 Attestation Confidential For the second question: B) regarding your answer please fully describe the CDMA2000 capabilities of this fall. Include a listing of all modes, RCs, service options and data rates. Please also describe which modes are for which type of operation/testing/usage. The followings are detail information about the configurations, please have a check. HUAWEI C218 Features lists Table1: Physical Channel List Modes Physical Channels Comments F-PICH Forward Pilot Channel F-SYCH Forward Sync Channel F-PCH Forward Paging Channel F-FCH Forward Fundamental Channel R-ACH Reverse Access Channel IS95 R-FCH Reverse Fundamental Channel F-PICH Forward Pilot Channel F-SYCH Forward Sync Channel F-PCH Forward Paging Channel F-FCH Forward Fundamental Channel R-ACH Reverse Access Channel R-FCH Reverse Fundamental Channel * F-QPCH Forward Quick Paging Channel IS 2000 * R-PICH Reverse Pilot Channel Note: HUWEI C218 does not support Supplemental Code Channel(F/R-SCCH) , Supplemental Channel(F/R-SCH), or Dedicated Control Channel(F/R-DCCH). Table 2: Radio Configurations list Modes Radio Configurations Data Rates Comments RC 1/1 9.6Kbps IS 95 RC 2/2 14.4Kbps The data rates here are for Fundamental Channels(F/R-FCH) RC 3/3 9.6Kbps RC 4/3 9.6Kbps IS 2000 RC 5/4 14.4Kbps The data rates here are for Fundamental Channels(F/R-FCH) Attestation Confidential Table 3: Service Options list Radio Configuration Service Options Comments RC1/1 RC2/2 RC3/3 RC4/3 RC5/4 Notes SO02 Mobile Station Loopback S S S Testing SO03 Enhanced Variable Rate Voice Service (8kbps) S S S Usage SO04 Asynchronous Data Service S S S Operation SO05 Group 3 Facsimile S S S Operation SO06 Short Message Services S S S Usage SO07 Packet Data Service: Internet Protocol Stack only S S S Operation SO09 Mobile Station Loopback S S Testing SO12 Asynchronous Data Service S S Operation SO13 Group 3 Facsimile S S Operation SO14 Short Message Services S S Usage SO15 Packet Data Service: Internet Protocol Stack only S S Operation SO18 Over-the-Air Service Administration– OTAPA S S S Usage SO19 Over-the-Air Service Administration – OTAPA S S Usage SO32 Test Data Service Option S S Testing SO33 1x High Speed Packet Data Service (RC>2) S S Operation SO55 Loopback Service Option (LSO) S S S Testing SO32798 Markov Calls (Rate Set1) S S S Testing SO32799 Markov Calls (Rate Set2) S S Testing Note: S= Support by HUAWEI C218 Mobile Station Modern Blank=Not allowed configuration

Attestation Confidential The test data of output power for different frequency of C218 Channel 1013 Attestation Confidential Attestation Confidential Attestation Confidential Channel 384 Attestation Confidential Attestation Confidential Attestation Confidential Channel 777 Attestation Confidential Attestation Confidential

Attestation Confidential Re: FCC ID QISC218-800 To: Martin Perrine [email protected] Applicant: Huawei Technologies Co., Ltd Correspondence Reference Number: 24865 731 Confirmation Number: TC318026 Date of Original Email: 11/28/2005 For the first question: Please explain why power was only tested for 3 service options? Please justify why power will not vary for the other service options mentioned. . For the third question: Please give more details of the intended usage in the "note" column of table 3. Please include mention if the usage would be for voice/held to ear, body worn or handheld usage. The meaning in the “note” column of the table 3 is as followings: usage: the Mobile station C218 supports this function; operation: the chips designed by Qualcomm supports this function but the Mobile station does not support it now. testing: test mode. Service Options Comments Notes Detail Description SO02 Mobile Station Loopback Testing The output power is set to maximum and emitted continuously so it is good for testing. SO03 Enhanced Variable Rate Voice Service (8kbps) Usage This is a normal usage function but it is not suitable for test because the output power control function works according to the voice input from mike. SO06 Short Message Services Usage The output power is burst not continuous so it is not suitable for testing. SO09 Mobile Station Loopback Testing The output power is set to Attestation Confidential maximum and emitted continuously so it is good for testing. SO14 Short Message Services Usage The output power is burst not continuous so it is not suitable for testing. SO18 Over-the-Air Service Administration– OTAPA Usage The output power is emitted by required not continuous so it is not suitable for testing. SO19 Over-the-Air Service Administration – OTAPA Usage The output power is emitted by required not continuous so it is not suitable for testing. SO55 Loopback Service Option (LSO)Testing The output power is set to maximum and emitted continuously so it is good for testing. SO32798 Markov Calls (Rate Set1) Testing It is assistant function accompanied to SO55. SO32799 Markov Calls (Rate Set2) Testing It is assistant function accompanied to SO55. So output power test, we only test for 3 Service options. Those data could represent all normal working modes. And for normal working conditions, the maximum output power rarely happens because of the good network signal overlay. For the forth question: I noticed that the frequency change for worst case power varies considerable with the different RCs. Since only RC3 was SAR tested some additional SAR testing may be necessary to fully justify compliance. Please see Supplement C and related Public Notices on handling different modes of operation. According to the test data we provided last time, the power level has little difference with the different RCs configuration in the same frequency. Although a little different with frequency, we do all tests from high, middle, low frequency in the work band. Different RCs have the different modulations for the base band referred to the document provided last time. But for RF band, the gain of the amplifier is the same in the same frequency. During the SAR test, we did pre-scan test firstly, we found little influence between different RCs. For RC3 is the most typical configuration in the CDMA2000 network condition now for C218, we used the RC3 as the worst case configuration in the test report. Another attestation is according to 3GGP2 C S0011-B, the chapter 4.4.5.2 about test method told us: Attestation Confidential For the forth question: In the answer appendix please title each graphic with what it represents. The titles of each graphic have been added. For the fifth question: Please also provide text description of "HPSK" modulation. HPSK means Hybrid Phase Shift Keying, it is used in Reverse channel in cdma2000 systems and it includes QPSK and OQPSK modulations, a block diagram showing the I and Q mapping for the reverse code channels is shown below: Attestation Confidential For the sixth question: Does this device contain 1X-EVDO or 1X-EVDV? If so please handle similar to above. The Mobile station C218 does not support 1X-EVDO or 1X-EVDV function.

Attestation Confidential The test data of output power for different frequency of C218 Figure1. 1/Channel: 1013; Radio Configuration: F1/R1; SO02 Figure2. 2/Channel: 1013; Radio Configuration: F2/R2; SO09 Attestation Confidential Figure3. 3/Channel: 1013; Radio Configuration: F3/R3; SO55 Figure4. 4/Channel: 1013; Radio Configuration: F4/R3; SO55 Attestation Confidential Figure5. 5/Channel: 1013; Radio Configuration: F5/R4; SO55 Figure6. 6/Channel: 384; Radio Configuration: F1/R1; SO02 Attestation Confidential Figure7. 7/Channel: 384; Radio Configuration: F2/R2; SO09 Figure8. 8/Channel: 384; Radio Configuration: F3/R3; SO55 Attestation Confidential Figure9. 9/Channel: 384; Radio Configuration: F4/R3; SO55 Figure10. 10/Channel: 384; Radio Configuration: F5/R4; SO55 Attestation Confidential Figure11. 11/Channel: 777; Radio Configuration: F1/R1; SO02 Figure12. 12/Channel: 777; Radio Configuration: F2/R2; SO09 Attestation Confidential Figure13. 13/Channel: 777; Radio Configuration: F3/R3; SO55 Figure14. 14/Channel: 777; Radio Configuration: F4/R3; SO55 Attestation Confidential Figure15. 15/Channel: 777; Radio Configuration: F5/R4; SO55

Photo documents of C218 CDMA handset Photo Documentation of Appearance of Product Photo documents of C218 CDMA handset

Photo documents of C218 CDMA handset Photo Documentation of Interior of Product Photo documents of C218 CDMA handset Photo documents of C218 CDMA handset

Telecommunication Metrology Center of Ministry of Information Industry No. 2005E00557 Page 2 of 60 GENERAL TERMS 1. The test report is invalid if not marked with “exclusive stamp for the test report” or the stamp of the test center. 2. Any copy of the test report is invalid if not re-marked with the “exclusive stamp for the test report” or the stamp of the test center. 3. The test report is invalid if not marked with the stamps or the signatures of the persons responsible for performing, revising and approving the test report. 4. The test report is invalid if there is any evidence of erasure and/or falsification. 5. If there is any dissidence for the test report, please file objection to the test center within 15 days from the date of receiving the test report. 6. Normally, entrust test is only responsible for the samples that have undergone the test. 7. This test report cannot be used partially or in full for publicity and/or promotional purposes without previous written permissions of the test center. Address: No. 52, Huayuanbei Road, Beijing, P. R. China Post code: 100083 Cable:04282 Telephone: +86 10 62302041 Fax: +86 10 62304793 Telecommunication Metrology Center of Ministry of Information Industry No. 2005E00557 Page 4 of 60 TABLE OF CONTENT 1 COMPETENCE AND WARRANTIES................................................................................................... 5 2 GENERAL CONDITIONS..................................................................................................................... 5 3 DESCRIPTION OF EUT....................................................................................................................... 5 3.1 ADDRESSING INFORMATION RELATED TO EUT ................................................................................... 5 3.2 CONSTITUENTS OF EUT ................................................................................................................... 6 3.3 GENERAL DESCRIPTION.................................................................................................................... 6 4 OPERATIONAL CONDITIONS DURING TEST ................................................................................... 7 4.1 SCHEMATIC TEST CONFIGURATION.................................................................................................... 7 4.2 SAR MEASUREMENT SET-UP............................................................................................................ 7 4.3 DASY4 E-FIELD PROBE SYSTEM....................................................................................................... 8 4.4 E-FIELD PROBE CALIBRATION........................................................................................................... 9 4.5 OTHER TEST EQUIPMENT............................................................................................................... 10 4.6 EQUIVALENT TISSUES..................................................................................................................... 10 4.7 SYSTEM SPECIFICATIONS................................................................................................................11 5 CHARACTERISTICS OF THE TEST ................................................................................................. 12 5.1 APPLICABLE LIMIT REGULATIONS..................................................................................................... 12 5.2 APPLICABLE MEASUREMENT STANDARDS........................................................................................ 12 5.3 CHARACTER OF THE TEST............................................................................................................... 12 6 LABORATORY ENVIRONMENT........................................................................................................12 7 TEST RESULTS ................................................................................................................................. 13 7.1 DIELECTRIC PERFORMANCE........................................................................................................... 13 7.2 SYSTEM VALIDATION....................................................................................................................... 13 7.3 SUMMARY OF MEASUREMENT RESULTS (HEAD, 835 MHZ BAND) ..................................................... 14 7.4 SUMMARY OF MEASUREMENT RESULTS (BODY-WORN, 835 MHZ BAND)........................................... 15 7.5 CONCLUSION................................................................................................................................. 15 8 MEASUREMENT UNCERTAINTY ..................................................................................................... 16 9 MAIN TEST INSTRUMENTS ............................................................................................................. 17 10 TEST PERIOD.................................................................................................................................. 17 11 TEST LOCATION.............................................................................................................................. 17 ANNEX A： MEASUREMENT PROCESS........................................................................................... 18 ANNEX B： TEST LAYOUT ................................................................................................................. 19 ANNEX C: GRAPH RESULTS............................................................................................................ 24 ANNEX D SYSTEM VALIDATION RESULTS ....................................................................................... 60 Telecommunication Metrology Center of Ministry of Information Industry No. 2005E00557 Page 5 of 60 1 COMPETENCE AND WARRANTIES Telecommunication Metrology Center of Ministry of Information Industry is a test laboratory accredited by DAR (DATech) – Deutschen Akkreditierung…

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Conducted_Power_C218_Huawei.xls Time Power (dBm) (Minute) Ch 1013 Ch 384 Ch 777 1 25.36 24.46 23.812 25.36 24.45 23.803 25.34 24.43 23.804 25.32 24.39 23.805 25.32 24.35 23.806 25.29 24.33 23.797 25.29 24.35 23.768 25.31 24.35 23.789 25.29 24.36 23.78 10 25.29 24.36 23.7911 25.32 24.36 23.7712 25.30 24.34 23.7713 25.23 24.34 23.7614 25.30 24.34 23.7515 25.25 24.33 23.7516 25.24 24.33 23.7417 25.22 24.33 23.7418 25.25 24.34 23.7419 25.21 24.32 23.7320 25.22 24.32 23.7321 25.24 24.31 23.7522 25.23 24.31 23.7423 25.23 24.30 23.7224 25.23 24.30 23.7225 25.22 24.29 23.7026 25.21 24.28 23.6827 25.19 24.28 23.6928 25.21 24.28 23.68 Variation of Coducted Power in the Peoriod of One Test 22.0022.2522.5022.7523.0023.2523.5023.7524.0024.2524.5024.7525.0025.2525.5025.7526.00 0 2 4 6 81012141618202224262830 Time (Minute) Power (dBm) Channel 1013Channel 384Channel 777 Conducted_Power_C218_Huawei.xls Conducted_Power_C218_Huawei.xls 30 1 3 47 Conducted_Power_C218_Huawei.xls

Telecommunication Metrology Center of Ministry of Information Industry No. 2005E00557 Page 2 of 71 GENERAL TERMS 1. The test report is invalid if not marked with “exclusive stamp for the test report” or the stamp of the test center. 2. Any copy of the test report is invalid if not re-marked with the “exclusive stamp for the test report” or the stamp of the test center. 3. The test report is invalid if not marked with the stamps or the signatures of the persons responsible for performing, revising and approving the test report. 4. The test report is invalid if there is any evidence of erasure and/or falsification. 5. If there is any dissidence for the test report, please file objection to the test center within 15 days from the date of receiving the test report. 6. Normally, entrust test is only responsible for the samples that have undergone the test. 7. This test report cannot be used partially or in full for publicity and/or promotional purposes without previous written permissions of the test center. Address: No. 52, Huayuanbei Road, Beijing, P. R. China Post code: 100083 Cable:04282 Telephone: +86 10 62302041 Fax: +86 10 62304793 Telecommunication Metrology Center of Ministry of Information Industry No. 2005E00557 Page 4 of 71 TABLE OF CONTENT 1 COMPETENCE AND WARRANTIES ............................................................................................................ 5 2 GENERAL CONDITIONS................................................................................................................................ 5 3 DESCRIPTION OF EUT................................................................................................................................... 5 3.1 ADDRESSING INFORMATION RELATED TO EUT............................................................................................... 5 3.2 CONSTITUENTS OF EUT ................................................................................................................................. 6 3.3 GENERAL DESCRIPTION.................................................................................................................................. 6 4 OPERATIONAL CONDITIONS DURING TEST .......................................................................................... 7 4.1 SCHEMATIC TEST CONFIGURATION................................................................................................................. 7 4.2 SAR MEASUREMENT SET-UP.......................................................................................................................... 7 4.3 DASY4 E-FIELD PROBE SYSTEM..................................................................................................................... 8 4.4 E-FIELD PROBE CALIBRATION........................................................................................................................ 9 4.5 OTHER TEST EQUIPMENT............................................................................................................................. 10 4.6 EQUIVALENT TISSUES................................................................................................................................... 10 4.7 SYSTEM SPECIFICATIONS.............................................................................................................................. 11 4.7.1 ROBOTIC SYSTEM SPECIFICATIONS........................................................................................................... 11 5 CHARACTERISTICS OF THE TEST .......................................................................................................... 11 5.1 APPLICABLE LIMIT REGULATIONS................................................................................................................ 11 5.2 APPLICABLE MEASUREMENT STANDARDS.................................................................................................... 11 5.3 CHARACTER OF THE TEST............................................................................................................................. 12 6 LABORATORY ENVIRONMENT ................................................................................................................ 12 7 TEST RESULTS ............................................................................................................................................... 12 7.1 DIELECTRIC PERFORMANCE......................................................................................................................... 12 7.2 SYSTEM VALIDATION.................................................................................................................................... 13 7.3 SUMMARY OF MEASUREMENT RESULTS (HEAD, 835 MHZ BAND) ............................................................... 14 7.4 SUMMARY OF MEASUREMENT RESULTS (BODY-WORN, 835 MHZ BAND) ................................................... 15 7.5 SUMMARY OF MEASUREMENT RESULTS OF RF POWER IN 28 MINUTES FOR EACH CHANNEL UNDER TEST.15 7.6 CONCLUSION................................................................................................................................................ 17 8 MEASUREMENT UNCERTAINTY .............................................................................................................. 17 9 MAIN TEST INSTRUMENTS........................................................................................................................ 19 10 TEST PERIOD ............................................................................................................................................... 19 11 TEST LOCATION.......................................................................................................................................... 19 ANNEX A MEASUREMENT PROCESS .................................................................................................... 20 ANNEX B TEST LAYOUT ..................................................…

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Telecommunication Metrology Center of Ministry of Information Industry No. 2005E00557 Page 2 of 72 GENERAL TERMS 1. The test report is invalid if not marked with “exclusive stamp for the test report” or the stamp of the test center. 2. Any copy of the test report is invalid if not re-marked with the “exclusive stamp for the test report” or the stamp of the test center. 3. The test report is invalid if not marked with the stamps or the sig…

Text truncated - open the document above for the full version.