FCC ID: VBNAZHA-01 AZHA AirScale RRH 4T4R B41 (AZHA)

Applicant: Nokia Solutions and Networks US LLC EXHIBIT 4: FCC ID LABEL SAMPLE AND LOCATION INFORMATION FCC ID: VBNAZHA-01 SECTION 2.1033(c) (11) also SECTION 2.925 (a) (1) A photograph or drawing of the equipment identification plate or label showing the information to be placed thereon. Response:

The drawing of the equipment identification label of the Nokia AZHA AirScale RRH 4T4R B41 (AZHA), FCC ID: VBNAZHA-

01 is attached. A drawing showing label location and drawings of the equipment identification label is attached. Public Page 1 of 3 Applicant: Nokia Solutions and Networks US LLC FCC Label Drawing for Nokia AZHA AirScale RRH 4T4R B41 (AZHA), FCC ID: VBNAZHA-01 FCC ID: VBNAZHA-01 Public Page 2 of 3 Applicant: Nokia Solutions and Networks US LLC FCC ID: VBNAZHA-01 Public Page 3 of 3

Agent Authorization Letter Date: June 27, 2018 We, Nokia Solutions and Networks, declare that Raymond Johnson, Walter Majkowski, Steven Gordon and Qin Yu of Nokia Global Products Compliance Laboratory (GPCL) are authorized agents to sign applications pertinent to FCC and Industry Canada applications. These employees of Nokia Global Product Compliance Laboratory are authorized to make representations to the FCC, Industry Canada and their respective Telecommunications Certified Body (TCB) agents on our behalf. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in FCC and Industry Canada's regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by the TCB, still resides with Nokia Solutions and Networks. I hereby certify on behalf of Nokia Solutions and Networks ("Applicant") that neither Applicant nor any party to the application (officers, directors, and 5% shareholders) is subject to a denial of Federal benefits that includes FCC benefits pursuant to section 5301 of the Anti-Drug Abuse Act of 198821 U.S.C. 853a. Sincerely, ______________________________ Steve Mitchell Nokia Solutions and Networks 6000 Connection Drive Irving, Texas 75039 USA 1-972-374-3000 steve.mitchell@nokia.com

Applicant: Nokia Solutions and Networks US LLC FCC ID: VBNAZHA-01 Federal Communications Commission Authorization and Evaluation Division Date: March 4, 2019 Confidentiality Request for:

FCC ID: VBNAZHA-01 To Whom It May Concern, Pursuant to FCC 47 CRF 0.457(d) and 0.459, Section 10, Nokia Solutions and Networks US LLC requests that a part of the subject FCC and/or IC application listed below be held permanently confidential and permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Exhibit 5 Active Circuit Devices Drive Levels, Tune-Up procedure Exhibit 6 Block Diagram Exhibit 7 Complete Circuit Diagrams Exhibit 8 Instruction Book Exhibit 9 Internal Photographs Confidentiality of the User Manual is maintained by requiring that any party that is supplied a user manual must first sign a non-

disclosure agreement. Currently only cellular system operators have access to these manuals. Internal photos are kept confidential by virtue of the fact that the end product is a non-consumer product, certified and housed in a sealed enclosure, and is only accessible by trained /approved maintenance personnel. Further, the Applicant has spent substantial effort in developing this product, some aspects of which are deemed to be trade secret and proprietary. Having the subject information easily available to our competitors in this market would negate the advantage we have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Sincerely, __________________________________ Steve Mitchell Nokia Solutions and Networks US LLC 6000 Connection Drive Irving, Texas 75039 USA 1-972-374-3000 steve.mitchell@nokia.com Confidential Page 1 of 1

Applicant: Nokia Solutions and Networks US LLC FCC ID: VBNAZHA-01 Timco Engineering Inc. FCC Authorized Telecommunications Certification Body (TCB) March 4, 2019 Nokia, Global Product Compliance Laboratory 600-700 Mountain Avenue Room 5A-107 Murray Hill, New Jersey 07974-0636 USA Timco Engineering Inc. FCC Authorized Telecommunication Certification Body 849 N.W. State Road 45, P.O. Box 370 Newberry, Florida 32669 Dear Examiner:

The Nokia AZHA AirScale RRH 4T4R B41 (AZHA) is the subject of this request for a new FCC Product Certification under FCC ID:

VBNAZHA-01. The AZHA is a LTE-TDD (Long Term Evolution-Time Division Duplex) transceiver and operates in Band 41 Broadband Radio Service (BRS) spectrum (2496-2690 MHz). The AZHA supports one to four 20 MHz carriers and 4x4 MIMO operation with a maximum total RF output power of 80W at its 4T/4R transmit ports. Nokia Bell Labs, part of the Nokia family of companies, hereby requests this certification for multicarrier operation. This is a new design and all of the required supporting exhibits are attached. The measurement exhibits attached to this application demonstrate full compliance with FCC Part 27 following the procedural requirements specified in FCC Part 2 Subpart J Equipment Authorization Procedures. The data, summarized below, is in the form presently used by the Commissions Radio Equipment List. Equipment Identification:

Rules Part Number:

VBNAZHA-01 Part 27 Emissions Designator(s):

Frequency Range:

Output Power:

18M0F9W E-UTRAN Band 41, 2496-2690 MHz 80W total with 4x4 MIMO Configuration 0.05 ppm Frequency Tolerance:

Carriers 1~4 20MHz Carriers Enclosed in this application package are FCC 731 Form, agent authorization letter, the required measurement data and other required exhibits specific to this request for authorization of the subject product. The measurement exhibits attached to this application demonstrate full compliance with FCC Part 27 following the procedural requirements specified in FCC Part 2 Subpart J Equipment Authorization Procedures. The supporting exhibits are assembled and presented in accordance with the Table of Contents attached below. Public Page 1 of 3 Applicant: Nokia Solutions and Networks US LLC List of Confidential Exhibits FCC ID: VBNAZHA-01 Exhibit Title Exhibit # FCC Rule Section Exhibit 5 Section 2.1033(c)(8,9) Active Circuit Devices Drive Levels, Tune-Up procedure Exhibit 6 Section 2.1033(c)(10,13) Block Diagram, Operational Description, Circuitry for determining frequency) Exhibit 7 Section 2.1033(c)(10) Exhibit 8 Section 2.1033(c)(12,3) Instruction Book (Installation Manual or User Manual) Exhibit 9 Section 2.1033(c)(12) Internal Photographs of the Equipment Complete Circuit Diagrams) Should there be any questions or procedural issues please feel free to contact me by email and/or phone. Sincerely, Filing Engineer Steve Gordon Member of Technical Staff Nokia, Global Product Compliance Laboratory Building 5A-107 600 Mountain Avenue Murray Hill, NJ 07974 Phone +1 908 679-5914 email: Steve.gordon@nokia-bell-labs.com Reviewed by:

Raymond J. Johnson Technical Manager FCC Compliance Test Group Nokia, Global Product Compliance Laboratory Phone: +1 Building 5A-127 600 Mountain Avenue Murray Hill, NJ 07974 Phone: +1 908 679 6220 email: ray.johnson@nokia-bell-labs.com Att. Table of Contents for the Nokia AZHA AirScale RRH 4T4R B41 (AZHA) Product Certification Report Public Page 2 of 3 Applicant: Nokia Solutions and Networks US LLC FCC ID: VBNAZHA-01 TABLE OF CONTENTS Cover Letter Request for Confidentiality Exhibit Number FCC Rule Number Description 1 FCC Form 731 Section 2.1033(a) Section 2.911(d) Section 2.1033(c)(1,2, 4-7) Manufacturers, FCC Identifier, Emission, Range of RF Power & Frequency Section 2.1033(c)(11) Drawing of the Identification Label Qualifications and Certifications Section 2.1033(c)(8,9) Active Circuit Devices Drive Levels, Tune-Up procedure (Confidential) Section 2.1033(c)(10,13) Block Diagram, Operational Description, Circuitry for determining frequency (Confidential) Section 2.1033(c)(10) Complete Circuit Diagrams (Confidential) Section 2.1033(c)(12,3) Section 2.1033(c)(12) Instruction Book (Installation Manual or User Manual) (Confidential) Internal Photographs of the Equipment (Confidential) External Photographs of the Equipment Section 2.1033(c)(12) Section 2.1033(c)(10, 13) Description of Modulation System Section 2.1033(c)(14) Sections 1.1307 & 1.1310 RF Exposure Assessment Test Report 2 3 4 5 6 7 8 9 10 11 12 13 Public Page 3 of 3

Applicant: Nokia Solutions and Networks US LLC Exhibit 3 FCC REQUIRED INFORMATION The following information is presented in the content and format requested by the FCC:

Section 2.1033 (c)(1):

The full name and mailing address of the manufacturer of the device and the applicant for certification FCC ID: VBNAZHA-01 Manufacturer:

Applicant:

Nokia Solutions and Networks US LLC 6000 Connection Drive Irving, TX, 75039 Attention: Steve Mitchell Nokia Solutions and Networks US LLC 6000 Connection Drive Irving, TX, 75039 Attention: Steve Mitchell Phone: (972)374-3000 email: steve.mitchell@nokia.com Section 2.1033(c)(2): FCC Identifier: VBNAZHA-01 Section 2.1033(c)(4): Type or types of emission:

The Nokia AZHA AirScale RRH 4T4R B41 (AZHA) is capable of amplifying transmission involving the following types of emissions:

BW (MHz) 20 Emissions Designation 18M0F9W Section 2.1033(c)(5): Frequency range, Transmit / Receive:

Blocks Transmit Range Receive Range (MHz) Bandwidth (MHz)

(MHz) B41 2496 - 2690 2496-2690 80 Public Page 1 of 2 FCC ID: VBNAZHA-01 FCC REQUIRED INFORMATION continued Applicant: Nokia Solutions and Networks US LLC Exhibit 3 Section 2.1033(c)(6): Range of operating power values or specific operating power levels, and description of any means provided for variation of operating power. Response:

The AZHA AirScale RRH 4T4R B41 (AZHA) FCC ID: VBNAZHA-01 is capable operating from 4 to 40 watts/port in 1dB steps in MIMO mode. Section 2.1033(c)(7): Maximum power rating as defined in the applicable part (s) of the rules. The maximum average power output of the Equipment Under Test at the Antenna connection is summarized in the following table:

Operation Mode Max Power per Total Max Power Modulation 4x4 MIMO mode 80W LTE Port 20W Response:

Public Page 2 of 2

Applicant: Nokia Solutions and Networks US LLC FCC ID: VBNAZHA-01 EXHIBIT 11: DETAILED DESCRIPTION OF THE MODULATION SYSTEM SECTION 2.1033(c) (13) For equipment employing digital modulation techniques, a detailed description of the modulation system to be use, including response characteristics of any filters provided, and a description of the modulating wavetrain, shall be submitted for the maximum rated conditions under which the equipment will be operated. Response The Nokia AZHA AirScale RRH 4T4R B41 (AZHA) supports LTE radio access technology, including multiple- input multiple-output

(MIMO). An FPGA provides all the digital processing for the downlink path and then presents them to the Tx DAC. The output of the DAC is filtered by low-pass filters and then up-converted via an I and Q modulator to the E-UTRA Band 41 carrier frequency in the range of 2496 MHz 2690 MHz. The transmitter chain RRH Radio block diagram is provided below. The FPGA performs channel filtering with a series of filters and signal conditioning stages. The overall response incorporates the necessary amplitude and phase equalization to meet the requirements of the 3GPP LTE standards. Digital Pre-distortion performs amplitude sensitive adjustments to the signal in anticipation of power- amplifier non-linearity distortions and cancels out the distortion effects of the power amplifier. The GC block detects if the average power exceeds a set threshold and adjusts the power of the output signal. The Digital Gain Compensation block dynamically measures the DC offset and DC gain contained in the signal and autonomously removes them. The Equalization block anticipates RF path propagation distortions and eliminates them with adjustments to the signal. The FPGA also includes a peak limiting block, which removes samples above a predetermined threshold without detrimental effects on the EVM (Error Vector Magnitude) metric. This enables the peaks of the baseband signal to be limited to obtain the desired peak to average ratio (PAR) in the output waveform. The overall response achieves pulse shaping and equalization which meets the transmitted signal Rho and EVM requirements when demodulated with the appropriate matched filter (e.g., in test equipment). Public Page 1 of 1

APPLICANT: Nokia Solutions and Networks US LLC FCC ID: VBNAZHA-01 EXHIBIT 2 Section 2.911 (d) CERTlFICATION OF TECHNICAL TEST DATA To Whom it may Concern:

This is to certify that the AZHA AirScale RRH 4T4R B41 (AZHA) with FCCID: VBNAZHA-01, manufactured by Nokia is compliant with the LTE-FDD (Long Term Evolution-Frequency Division Duplex) transceiver and operates in Band 41 Broadband Radio Service (BRS) spectrum (2496-2690 MHz). R.J. Johnson Technical Manager FCC Compliance Test Group Section 2.911 (d) QUALIFICATION OF ENGINEERS Steve Gordon is a Member of Technical Staff at Nokia. He received a BSET degree in 2001 from The New Jersey Institute of Technology, Newark College of Engineering. He has more than 18 years of experience in the EMC regulatory industry. He has developed test plans and conducted RF tests including the required FCC tests for radio equipment certification. Steve is the Lead engineer for the FCC filing of the subject product at Nokia. Section 2.911(d) CERTIFICATION OF TECHNICAL TEST DATA I hereby certify that the technical test data are the results of tests supervised by me. Steve Gordon Member of Technical Staff Page 1 of 1

Applicant: Nokia Solutions and Networks US LLC FCC ID: VBNAZHA-01 Federal Communications Commission Authorization and Evaluation Division Date: March 11, 2019 Confidentiality Request for:

FCC ID: VBNAZHA-01 To Whom It May Concern, Pursuant to Sections 0.457 and 0.459 of the commissions rules, we request shortterm confidential treatment for the following information until 180 days after the Grant Date of Equipment Authorization in order to ensure sensitive business information remains confidential until the actual marketing of the device:

External photos Test Setup photos Sincerely, _______________________________ Steve Mitchell Nokia Solutions and Networks US LLC 6000 Connection Drive Irving, Texas 75039 USA 1-972-374-3000 steve.mitchell@nokia.com Public