B5KKRC12103-31PCS DAMPS Base Station

EXHIBIT8 Page1 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 EXHIBIT 8 - COVER SHEET Table of Contents Description RBS 884-190027 pages DESCRIPTION ERA/AR/SL KSN 28/1551−ANT 244 01 Uen ERA/AR/SLC (L−O Sundell) 1996−03−29 A 28_1551−ANT24401_A.WTEK © COPYRIGHT Ericsson Radio Systems AB 1996 Uppgjord - PreparedFaktaansvarig - Subject responsibleNr - No Dokansv/Godk - Doc respons/ApprovedKontr - CheckedDatum - DateRevFile 1(27) RBS884−1900 Abstract The hardware structure of the macro base station RBS 884−1900 is described in this document. RBS 884− 1900 is designed for D−AMPS 1900. Application This description applies to MBS in CMS 88. The limitations on the Friendly User System are mentioned separately. DESCRIPTION ERA/AR/SL KSN 28/1551−ANT 244 01 Uen ERA/AR/SLC (L−O Sundell) 1996−03−29 A 28_1551−ANT24401_A.WTEK © COPYRIGHT Ericsson Radio Systems AB 1996 Uppgjord - PreparedFaktaansvarig - Subject responsibleNr - No Dokansv/Godk - Doc respons/ApprovedKontr - CheckedDatum - DateRevFile 2 Table of Contents 1 Introduction 3 2 D−AMPS 1900 3 3 MBS 4 4 Base Station Structure 4 4.1 Control Part 4 4.2 RF Block Diagrams 7 4.3 Modem Part 13 4.4 Antenna Near Part 14 4.5 Support Part 17 4.6 Building Practice 18 5 Interfaces 18 5.1 External BS Interfaces 18 5.2 Internal BS Interfaces 19 6 Performance 21 6.1 Radio Network Characteristics 21 6.2 Radio Performance 21 6.3 Environmental Characteristics 21 6.4 Transmission Performance 21 6.5 Power Consumption 22 6.6 Traffic Capacity 22 7 Functions 22 7.1 Traffic 22 7.2 Operation and Maintenance 22 8 Placing of Cabinets 23 9 Co−siting 24 10 Terminology 24 11 References 25 12 Revision Information 27 DESCRIPTION ERA/AR/SL KSN 28/1551−ANT 244 01 Uen ERA/AR/SLC (L−O Sundell) 1996−03−29 A 28_1551−ANT24401_A.WTEK © COPYRIGHT Ericsson Radio Systems AB 1996 Uppgjord - PreparedFaktaansvarig - Subject responsibleNr - No Dokansv/Godk - Doc respons/ApprovedKontr - CheckedDatum - DateRevFile 3 1 INTRODUCTION The base station RBS 884−1900 is designed for D−AMPS 1900, which is an all digital system. The air inter− face standard is defined by PN3388. The building practice of RBS 884−1900 is the same as for the macro base station RBS 884. The transceiver and the antenna near parts of RBS 884−1900 are new designs, while the control part of RBS 884 is reused. The purpose of this document is to give an overview of the hardware structure of the base station. A number of references are mentioned, where more detailed information on the hardware, the interfaces, and the performance can be found. 2 D−AMPS1900 The frequency band used for D−AMPS 1900 is divided into six bands according to table 1. The following bands and combinations of bands are supported by the base station: A, B, C, D, E, F, A+D, D+B, B+E, F+C, and E+F. Table 1. Frequency band D−AMPS 1900 Bandwidth No. of RX band TX band Band [MHz] channels [MHz] [MHz] ――――――――――――――――――――――――――――――――――――――――――――――――――――― A 15 497 1850−1865 1930−1945 D 5 164 1865−1870 1945−1950 B 15 498 1870−1885 1950−1965 E 5 165 1885−1890 1965−1970 F 5 164 1890−1895 1970−1975 C 15 497 1895−1910 1975−1990 In addition to the channels specified above, there are 12 channels that do not entirely fall into a single band. These channels are also supported by the base station, so in all there are 1997 channels available. The transceiver is designed for the entire band (1850− −1910, 1930−1990). The ANP units except the autotuned combiner and some filters (see 4.4.2, 4.4.3) cover the entire band as well. It is possible for an operator to have two non− consecutive bands. In that case, two separate antenna systems must be used. DESCRIPTION ERA/AR/SL KSN 28/1551−ANT 244 01 Uen ERA/AR/SLC (L−O Sundell) 1996−03−29 A 28_1551−ANT24401_A.WTEK © COPYRIGHT Ericsson Radio Systems AB 1996 Uppgjord - PreparedFaktaansvarig - Subject responsibleNr - No Dokansv/Godk - Doc respons/ApprovedKontr - CheckedDatum - DateRevFile 4 3 MBS The subsystem MBS handles the communication between the MSC and the mobile station. MBS consists of both hardware and software in the MSC and in the base station. An outline of MBS is shown in figure 1. Note, the group switch (GS) does not belong to MBS. Figure 1. MBS hardware structure. l――――k PSTN―――――――uGS|||| l――――――――k||l―――――kT1/E1l―――――kl―――――kl―――――kmnj |Trans−t――ut――uETCt――――――――――――uCOPt――uMOPt――uANPt―――j |coder|||m―――――jm―――――jm―――――jm―――――j m――――――――jm――――j MSC BS ←―――――――――――――――――――――――――→←―――――――――――――――――――――――→ MBS ←――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――→ Besides the control part (COP), the modem part (MOP), and the antenna near part (ANP), the base station contains a support part (SUP). In this document the base station part of MBS is described. 4 BASESTATIONSTRUCTURE 4.1 CONTROL PART The control part communicates with the MSC and it also controls the MOP, ANP, and SUP. In the macro base station, the control part consists of the CRI. A block diagram of the CRI is shown in figure 2. DESCRIPTION ERA/AR/SL KSN 28/1551−ANT 244 01 Uen ERA/AR/SLC (L−O Sundell) 1996−03−29 A 28_1551−ANT24401_A.WTEK © COPYRIGHT Ericsson Radio Systems AB 1996 Uppgjord - PreparedFaktaansvarig - Subject responsibleNr - No Dokansv/Godk - Doc respons/ApprovedKontr - CheckedDatum - DateRevFile 5 Figure 2. CRI l―――――k T1/E1―――――uETBt―――――――――――――――――――――――――――――k |t――――――――――――――――――――――――k| m――w――j|| |DEVCB|| l――v――k|| |STR||| m――w――j|| ||| |EMRPB||DEVSB ||| |l―――――k|| T1/E1――――――――n――uETBt――――――――――――――――――n――――u ||t――――――――――――――――――u| |m――w――j|| |||| |l――v――k||l―――――k ||STR|||.|RTT| |m――w――j||.|| ||||l――v――k| ||EMRPB|||RTTt――j |||t―――――ut―――――CLINKs ||l―――――――k||l―→||: ||.|EMRPS|||||t――――― ||.|||||m―――――j ||l――v――――k|||| |||EMRPS||||| |t―――ut――j||| t―――――n―――ut―――――――――n――――u| ||||||| |||t―――――――――n――――n――n――――――――――――――V24 ||m―――――――j||| ||||| ||l――――――k||| |m―――uEMRPt――――――――――u|| m―――――――――u|||| m――――――j||| |||CFR l――――――k||| |NTSWt――――――――――j|| |t―――――――――――――――j| l――→|t――――――――――――――――――j |m――――――j m―――――――――――――――――…

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EXHIBIT 2 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 COMPLIANCE STATEMENT / CERTIFICATION OF DATA 2.911(d)The technical data contained in this application has been taken personally or under my supervision and is certified true and correct. My qualifica- tions are: Teletechnical Engineer ÅSÖ Gymnasium, Stockholm, Swede, 1975. Two years military experience with radar, communications and misssile equipment. Nine years experience in Electrical safety certifica- tions and five years in Electromagnetical Inter- ference certifications at SEMKO AB, the Swedish laboratory corresponding to Underwriters Labora- tories. Nine year experience with Cellular and Personal Communications System Base Stations at Ericsson Radio Systems AB, Stockholm, Sweden. NAME:______________________________ _Larry Lindström______________ POSITION:Engineer Regulatory Services__ Radio and EMC_________________ DATE:_10-01-2000___________________

EXHIBIT 4 APPLICANT: Ericsson Radio System AB FCC ID NO. B5KKRC12103-31 EXHIBIT 4 - COVER SHEET Table of Contents Block Diagram 1911-ROA 117 2068/34 Uen 1 page Block Diagram 1911-ROZ 104 03 Uen 1 page

Ericssonl January 11, 2000 Federal Communications Commission Authorization & Evaluation Division 7435 Oakland Mills Road Columbia, Maryland 21046 Attention: Equipment Authorization Branch Subject: Certification for FCC ID: B5KKRC12103-31 Gentlemen, Ericsson Radio Systems AB.requests a grant of Certification (Type Acceptance) for the above mentioned FCC Identifier. This base station is designed for use in the 1900 MHz Personal Communications Services, Subpart E of Part 24, and was tested using TIA/IS-136/IS-138 for operation in Cellular Systems. The base station will operate from 1930.08 to 1989.96 MHz. This base station will operate at a maximum power out of 28 watts at the antenna connector of the TRX unit. The statement concerning MPE compliance for this base station is contained in exhibit 11. Ericsson Radio Systems AB requests confidentiality under CFR 0.459. Confidentiality for the following exhibit is requested Exhibit 5........Circuit Diagrams Justification of this request is in order to protect the large investment in developing this technology and to facilitate the circuit miniaturization utilized in this design and protect the innovative design as well as proprietary techniques which are implemented. In order to protect Ericsson’s competitive advantage on these proprietary techniques, we request the above listed exhibits be held as confidential and withheld from the Public Information File. If additional information is needed, please contact me on the below listed number. Sincerely, Larry L. Roberts Staff Engineer, Regulatory Programs Telephone No.: (804) 592-7732 Fax No.: (804) 592-6510 e-mail No. [email protected] LLR:00/003

EXHIBIT 3 Page 3.1 APPLICANT: Ericsson Radio System AB FCC ID NO. B5KKRC12103-31 EXTERNAL PHOTOGRAPHS 2.1033 (c)(12) Front of RBS884-1900 Macro with doors off. EXHIBIT 3 Page 3.2 APPLICANT: Ericsson Radio System AB FCC ID NO. B5KKRC12103-31 EXTERNAL PHOTOGRAPHS 2.1033 (c)(12) Front of RBS884-1900 Macro with doors on.

EXHIBIT1 Page 1.1 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 IDENTIFICATION PLATE 2.1033(c)(11)ID Label EXHIBIT1 Page1.2 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 IDENTIFICATION PLATE 2.1033(c)(11)ID Label Location

EXHIBIT9 Page9.1 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 INTERNAL PHOTOGRAPHS 2.1033(c)(12)Lid Outside plus Front EXHIBIT9 Page9.2 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 INTERNAL PHOTOGRAPHS 2.1033(c)(12)Component Side of Board under Lid EXHIBIT9 Page9.3 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 INTERNAL PHOTOGRAPHS 2.1033(c)(12)Reverse side of Board EXHIBIT9 Page9.4 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 INTERNAL PHOTOGRAPHS 2.1033(c)(12)Bottom Outside - Cooler

EXHIBIT 12 Page 12.0 APPLICANT: Ericsson Radio System AB FCC ID NO. B5KKRC12103-31 EXHIBIT 12 - COVER SHEET Table of Contents General Information 12.1 Frequency Stabilizing Circuit 12.2 Spurious and harmonic suppression 12.3 Limiting Power 12.4 Digital Modulation 12.5 EXHIBIT 12 Page 12.1 APPLICANT: Ericsson Radio System AB FCC ID NO. B5KKRC12103-31 DESCRIPTION 2.1033 (c)(2) FCC Identifier: B5KKRC12103-31 This transmitter is designed for use in Per- Sonal Communications systems Subpart E of Part 24. The frequencies are generated using a phase- locked synthesizer. The synthesizer is locked to the in-coming sync signal from the PCM- link used for the system. (4) Type of Emission: 30KODXW (5) Frequency range: 1930.08 to 1989.96 MHz (6) Range of Operating Power: This transmitter is designated to supply 28 Watts of power at the antenna connector of the radio channel unit (TRX). 100 power levels are provided in 0.2 dB steps down to 280 milliwatts. (7) Maximum Power Rating: The maximum power rating under environmental supply voltage variations is equal to 28 watts plus the power level tolerance of + 1 dB. Therefore the maximum output power is 35.2 watts. (8) Final Amplifier Voltage and Current in normal operation (Rated power is for 1 device in the output stage). 0.28 Watts 28 Watts 24.5 V DC 24.5 V DC 0.15 A DC 2.5 A DC EXHIBIT12 Page12.2 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 DESCRIPTION 2.1033(c)(10)Frequency Stabilizing Circuit Description The transmitter uses a phase-locked UHF VCO Operating between 1787.06 MHz to 1847.06 MHz. This signal is phase-locked to an internal 3.24 MHz reference oscillator frequency (RAREF) which in turn is divided down 6 times from the 19.44 MHz VCO in the digital block. The VCO is phase-locked to the incoming T- Link sync frequency of 2.048 MHz. The T-link is converted from a C-link in the DCON-board in the TCB-cabinet where the TRX:s are mounted. The C-link is phase-locked to the local PCM-link sync frequency of 1.544 MHz (or 2.048 MHz for non-US markets) in the CRI in the RBS884-1900 Macro base station. EXHIBIT12 Page12.3 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 DESCRIPTION 2.1033(c)(10)Spurious and Harmonic Suppression Spurious and harmonic suppression is achieved by using a bandpass filter (N403 LX-stage) in the exciter amplifier and a passive bandpass filter connected to the TRX output. The output from the bandpass filter is connected to the applicable combiner system in the base station. The combiner system will connect all the TRX units in the RBS884 base station family to the same antenna output. EXHIBIT12 Page12.4 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 DESCRIPTION 2.1033(c)(10)Limiting Power The EMRPS function allows the RF power output to be set from 0 dB to – 20 dB attenuation in 0.2 dB steps from the MSC (Mobile Switching Center). The power levels can be in the range from a minimum of 280 milliwatts to a maximum Of 28 watts at the output of the TRX. The EMRPS supervises the feedback loop (RFF) from the Coupler stage to Linearization by checking the baseband signals. If the power output changes, the EMRPS will adjust the gain in the exciter amplifier. If some fault happens in the output power circuits, the EMRPS will compare the fault with prestored values and report the fault to the Switch via alarm codes in different levels. The highest alarm level is a serious fault and this alarm will get the EMRPS to shut down the output power stages without confirmation from the Switch. The EMRPS function will also control the RF power output according to the environment temperature. The power amplifier will not be able to get the supply current it need above 50 degrees C and below –5 degrees C. Then will the EMPRS shut down the power output since the unit is not able give a power out- put above –3 dB below set power level. EXHIBIT12 Page12.5 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 DESCRIPTION 2.1033(c)(10)Digital Modulation The TRX is used both as voice channel and control channel in the RBS884 System. The DIGITAL modulation is limited in the waveform generator. The burst data from each time slot is formatted with syncwords and coded with a digital verification color code and user channel data. The formatted burst data are then converted to digital I and Q signals. These digital I and Q signals are then filtered in a square root raised cosine filter to form the correct modulation. The filtered signals are ten times oversampled and converted to analogue signals in a D/A- Converter. The modulation form is π/4-DQPSK for control and voice channel.

EXHIBIT10 Page10 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 EXHIBIT 10 - COVER SHEET Table of Contents Function Block10.1 Function Block Cont.10.2 Function Block Cont.10.3 Function Block Cont.10.4 Tune-Up Procedure10.5 Power Tune-Up – Power Limiting10.6 EXHIBIT10 Page10.1 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 FUNCTION OF ACTIVE CIRCUIT DEVICES 2.1033(c)(10)Function of Active Circuit Devices Function Block Digital Control (1911-ROZ 104 03) D18XLINEDRIVER TS D2PLD D4ASIC TRISTAN, CONTROL Radio & Synthesizer D6DSP, PLL- & PCM-link Control D8SRAM 64k16 D9FLASHROM 256k16 D100DSP, Receiver D101SRAM 64k16 D102ASIC ISOLET, RSSI Receiver, IfA- & IfB- Receiver D104DSP, Receiver D201FlipFlop P-edge Trigger D202Inverter D203D-type FlipFlop D204Inverter D206Inverter D300D-type FlipFlop N1Reset Circuit N100VCO 27.300 MHz N200ASIC ADDA, A/D-converter, D/A-converter N203Voltage Reference N204VCO 19.44 MHz N300Switch Regulator N301Switch Regulator V3Driver FlashROM VPP V4Driver FlashROM VPP V6LED Driver V8LED Driver V200Voltage Regulator V201Voltage Regulator V202Voltage Regulator V203Voltage Regulator V204Voltage Regulator V205Voltage Regulator EXHIBIT10 Page10.2 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 FUNCTION OF ACTIVE CIRCUIT DEVICES 2.1033(c)(10)Function of Active Circuit Devices Function Block RXRF (1911-ROZ 104 11) N600ASIC ULLA, Downconverter N610Filter N620Filter T610Transformer T611Transformer T620Transformer T621Transformer V650Voltage Regulator V651Voltage Regulator Function Block RXIF (1911-ROZ 104 05) N801ASIC FREJA, If Circuit N810BandPassFilter 62.94 MHz N820BandPassFilter 62.94 MHz N811BandPassFilter 455 kHz N821BandPassFilter 455 kHz T800Transformer V800Voltage Regulator V801Voltage Regulator Function Block IFLO (1911-ROZ 104 06 N700Voltage Regulator N701PLL Synthesizer N702PLL Synthesizer N750Voltage Regulator V703Amplifier V707Amplifier V710Voltage Regulator V711Voltage Regulator V712Voltage Regulator V753Amplifier V757Amplifier V760Voltage Regulator V761Voltage Regulator V762Voltage Regulator EXHIBIT10 Page10.3 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 FUNCTION OF ACTIVE CIRCUIT DEVICES 2.1033(c)(10)Function of Active Circuit Devices Function Block FG (1911-ROZ 104 13) N903PLL Synthesizer N904Oscillator 1787 – 1847 MHz N905Amplifier N906Direction Coupler V923Voltage Regulator V924Voltage Regulator V925Voltage Regulator Function Block LX (1911-ROZ 104 14) D401Inverter N401Differential Amplifier 4pcs N402ASIC GLEIPNER, Linearization N403Band Pass Filter N404Amplifier N407Voltage Regulator N408Voltage Regulator N409Voltage Reference N411ASIC RIO, Serial/Parallel Interface N415Amplifier N416Voltage Regulator T401Transformer T402Transformer T403Transformer T404Transformer V403Driver V411VSWR Alarm Driver V412Voltage Regulator V413Voltage Regulator V420Power Setting Driver V421Power Setting Driver V422Power Setting Driver EXHIBIT10 Page10.4 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 FUNCTION OF ACTIVE CIRCUIT DEVICES 2.1033(c)(10)Function of Active Circuit Devices Function Block TXPA (1911-ROZ 104 15) N502Direction Coupler N503Direction Coupler N510Temperature Sensor V5011 st Amplifier V5022 nd Amplifier V5033 rd Amplifier V5044 th Amplifier V5054 th Amplifier V506Bias V503 V507Bias V502 V508Bias V505 V509Voltage - Compare V510Bias V503 V511Bias V502 V512Voltage – VSWR Compare V513Bias V504 V514Bias V501 V516Bias V501 V517Voltage - Compare V518Bias V505 V519Voltage – VSWR Compare V520VSWR Alarm V584Bias V504 EXHIBIT10 Page10.5 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 TUNE-UP PROCEDURE 2.1033(c)(9)Tune-Up Procedure All the necessary adjustments will be set in the factory, and should need no adjustments out in the field (pre-tuned coils are used, etc.). If the TRX is not able to maintain the requirements for power output, frequency sta- bility, etc., the Switch will give an indi- cation that the TRX needs service. If it is a great failure, the EMRPS will shut down the TRX without confirmation from the Switch. EXHIBIT10 Page10.6 APPLICANT: Ericsson Radio System ABFCC ID NO. B5KKRC12103-31 CIRCUIT AND DEVICE DESCRIPTIONS 2.1033(c)(9,10)Power Tune-Up – Power Limiting The EMRPS function allows the RF power output to be set from 0 dB to – 20 dB attenuation in 0.2 dB steps from the MSC (Mobile Switching Center). The power levels can be in the range from a minimum of 280 milliwatts to a maximum of 28 watts at the output of the TRX. The EMRPS supervises the feedback loop (RFF) From the Coupler stage to Linearization by checking the baseband signals. If the power output changes, the EMRPS will adjust the gain in the exciter amplifier. If some fault happens in the output power circuits, the EMRPS will compare the fault with prestored values and report the fault to the Switch via alarm codes in different levels. The highest alarm level is a serious fault and this alarm will get the EMRPS to shut down the output power stages without confirmation from the Switch.