Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description

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GSM/EDGE BSS, Rel. RG30(BSS), Operating Documentation, Issue 04 Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description DN0947122 Issue 03A draft Approval Date 2013-06-24 Confidential Nokia Siemens Networks is continually striving to reduce the adverse environmental effects of its products and services. We would like to encourage you as our customers and users to join us in working towards a cleaner, safer environment. Please recycle product packaging and follow the recommendations for power use and proper disposal of our products and their compo- nents. If you should have questions regarding our Environmental Policy or any of the environmental services we offer, please contact us at Nokia Siemens Networks for any additional information.
Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description The information in this document is subject to change without notice and describes only the product defined in the introduction of this documentation. This documentation is intended for the use of Nokia Siemens Networks customers only for the purposes of the agreement under which the document is submitted, and no part of it may be used, reproduced, modified or transmitted in any form or means without the prior written permission of Nokia Siemens Networks. The documentation has been prepared to be used by professional and properly trained personnel, and the customer assumes full responsibility when using it. Nokia Siemens Networks welcomes customer comments as part of the process of continuous development and improvement of the documentation. The information or statements given in this documentation concerning the suitability, capacity, or performance of the mentioned hardware or software products are given "as is" and all liability arising in connection with such hardware or software products shall be defined conclusively and finally in a separate agreement between Nokia Siemens Networks and the customer. However, Nokia Siemens Networks has made all reasonable efforts to ensure that the instructions contained in the document are adequate and free of material errors and omissions. Nokia Siemens Networks will, if deemed necessary by Nokia Siemens Networks, explain issues which may not be covered by the document. Nokia Siemens Networks will correct errors in this documentation as soon as possible. IN NO EVENT WILL Nokia Siemens Networks BE LIABLE FOR ERRORS IN THIS DOCUMENTA- TION OR FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL, DIRECT, INDI- RECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES, SUCH AS BUT NOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESS OPPORTUNITY OR DATA,THAT MAY ARISE FROM THE USE OF THIS DOCUMENT OR THE INFORMATION IN IT. This documentation and the product it describes are considered protected by copyrights and other intellectual property rights according to the applicable laws. The wave logo is a trademark of Nokia Siemens Networks Oy. Nokia is a registered trademark of Nokia Corporation. Siemens is a registered trademark of Siemens AG. Other product names mentioned in this document may be trademarks of their respective owners, and they are mentioned for identification purposes only. Copyright © Nokia Siemens Networks 2013. All rights reserved f Important Notice on Product Safety This product may present safety risks due to laser, electricity, heat, and other sources of danger. Only trained and qualified personnel may install, operate, maintain or otherwise handle this product and only after having carefully read the safety information applicable to this product. The safety information is provided in the Safety Information section in the “Legal, Safety and Environmental Information” part of this document or documentation set. The same text in German: f Wichtiger Hinweis zur Produktsicherheit Von diesem Produkt können Gefahren durch Laser, Elektrizität, Hitzeentwicklung oder andere Gefahrenquellen ausgehen. Installation, Betrieb, Wartung und sonstige Handhabung des Produktes darf nur durch geschultes und qualifiziertes Personal unter Beachtung der anwendbaren Sicherheits- anforderungen erfolgen. Die Sicherheitsanforderungen finden Sie unter „Sicherheitshinweise“ im Teil „Legal, Safety and Environmental Information“ dieses Dokuments oder dieses Dokumentations- satzes. 2 Id:0900d805809a2110 DN0947122 Confidential
Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description Table of contents This document has 42 pages. 1 Summary of changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 CE marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 FCC Part 15 compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4 RSS-310 compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.1 Overview of Flexi Multiradio BTS RF Module (FXxx). . . . . . . . . . . . . . . 11 5.1.1 Software tunable filters (STuF) in 60 W RF Module variants. . . . . . . . . 13 5.1.2 Digital predistortion (DAPD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.1.3 FXxx operating range and RF bandwidths. . . . . . . . . . . . . . . . . . . . . . . 14 5.2 Overview of Flexi Multiradio BTS RRH Module (FHxx) . . . . . . . . . . . . . 14 5.2.1 FHxx operating range and RF bandwidths . . . . . . . . . . . . . . . . . . . . . . 17 6 RF Module and RRH main blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6.1 RF Module (FXxx) main blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6.2 RRH Module main blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 7 RF Module and RRH Module interfaces . . . . . . . . . . . . . . . . . . . . . . . . 21 7.1 Front panel views of RF Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 7.2 RF Module front panel description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 7.3 RRH Module interface description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 8 Power requirements and output power . . . . . . . . . . . . . . . . . . . . . . . . . 28 8.1 RF Module power requirements and output power . . . . . . . . . . . . . . . . 28 8.2 RRH Module power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 9 RF Module and RRH Module dimensions and weight . . . . . . . . . . . . . . 33 10 RF Module and RRH Module LED indications. . . . . . . . . . . . . . . . . . . . 34 11 RF Module and RRH Module temperature range . . . . . . . . . . . . . . . . . 36 12 Contents of the RF Module delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 13 Contents of RRH module delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 14 Appendix A: RRH and RF Module connector pin assignments . . . . . . . 39 14.1 EAC connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 15 Appendix B: Compliance with EMC, RF, and safety . . . . . . . . . . . . . . . 41 DN0947122 Id:0900d805809a2110 3 Confidential
Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description List of figures Figure 1 CE marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 2 Isometric view of RF Module (FXDA, FXDJ, and FXEA) . . . . . . . . . . . . 12 Figure 3 Isometric view of RF Module (FXFA and FXCA) . . . . . . . . . . . . . . . . . . 12 Figure 4 Isometric view of 80 W RF Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 5 Isometric view of 2x40 W RRH Module . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 6 Isometric view of 2x60 W RRH Module . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 7 RF Module (FXxx) main blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 8 Functional blocks of the 2x40 W RRH . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 9 FXDA, FXEA, and FXDJ front panel view . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 10 FXFx and FXCA front panel view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 11 FXDB and FXEB front panel view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 12 FXCB and FXFC front panel view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 13 2x40 W RRH front panel connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 14 2x60 W RRH front panel connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 15 RF Module external alarms and control settings screen. . . . . . . . . . . . . 40 4 Id:0900d805809a2110 DN0947122 Confidential
Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description List of tables Table 1 Flexi Multiradio RF Module variants . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Table 2 60 W RF Module Frequency Range and Bandwidths . . . . . . . . . . . . . . 14 Table 3 80 W RF Module Frequency Range and Bandwidths . . . . . . . . . . . . . . 14 Table 4 Flexi Multiradio BTS RRH Module variants . . . . . . . . . . . . . . . . . . . . . . 15 Table 5 RRH 2x40 W RF Frequency Range and Bandwidths . . . . . . . . . . . . . . 17 Table 6 RRH 2x60 W RF Frequency Range and Bandwidths . . . . . . . . . . . . . . 17 Table 7 RF Module (FXxx) front panel connectors, cable types and interfaces 23 Table 8 RRH Module (FHxx) interface connectors, cable types and interfaces 26 Table 9 DC Cable Requirements for 80 W RF Modules . . . . . . . . . . . . . . . . . . 28 Table 10 RF Module (FXxx) input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . 29 Table 11 TX power of common GSM configurations using 60 W RF Modules . . 29 Table 12 TX power of common GSM configurations using 80 W RF Modules . . 30 Table 13 Maximum output power per modulation scheme . . . . . . . . . . . . . . . . . 30 Table 14 60 W and 80 W RF Module TX output power tolerance . . . . . . . . . . . . 31 Table 15 RRH Module (FHxx) input voltage range . . . . . . . . . . . . . . . . . . . . . . . 31 Table 16 TX power of GSM configurations with 2x40 W RRH . . . . . . . . . . . . . . . 31 Table 17 TX power of GSM configurations with 2x60 W RRH . . . . . . . . . . . . . . . 31 Table 18 RRH Module TX output power tolerance . . . . . . . . . . . . . . . . . . . . . . . 32 Table 19 FXxx dimensions and weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Table 20 FHxx dimensions and weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Table 21 RF/RRH Module unit status LED indications . . . . . . . . . . . . . . . . . . . . 34 Table 22 RF Module fan/TX status LED indications . . . . . . . . . . . . . . . . . . . . . . 35 Table 23 2x40 W RRH TX Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Table 24 RF Module temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Table 25 RRH Module temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Table 26 FXxA and FXFB delivery contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Table 27 80 W RF Module variants delivery contents . . . . . . . . . . . . . . . . . . . . . 37 Table 28 Flexi Multiradio 2x40 W RRH delivery contents . . . . . . . . . . . . . . . . . . 38 Table 29 Flexi Multiradio 2x60 W RRH delivery contents . . . . . . . . . . . . . . . . . . 38 Table 30 EAC connector pin assignments for RJ45 connector . . . . . . . . . . . . . . 39 Table 31 EAC connector pin assignments for MDR14 connector . . . . . . . . . . . . 39 DN0947122 Id:0900d805809a2110 5 Confidential
Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description 6 Id:0900d805809a2110 DN0947122 Confidential
Flexi Multiradio BTS GSM/EDGE RF Module and RRH Summary of changes Module Description 1 Summary of changes Changes between issues 03A and 03B (2013-06-27) RF Modules output power has been harmonized throughout the document. The following chapters have been updated: • Overview of Flexi Multiradio BTS RF Module (FXxx) • Power requirements and output power Changes between issues 03A and 03 The document is updated for information about 2x60 W RRH Modules FHDB and FHEB. Changes between issues 03 and 02F The document is updated for information about FXFC RF Module variant. Changes between issues 02F and 02E The document is updated for information about 90 W RF Module variants Changes between issues 02E and 02D Updated chapters: • FXxx operating range and RF bandwidths is updated for FXDJ details • RRH Module power requirements is updated for Tx power tolerance value. Changes between issues 02D and 02C Updated chapters: • FHxx operating range and RF bandwidths is updated for FHEA details Changes between issues 02C and 02B Added chapters: • CE marking • FCC Part 15 compliance • RSS-310 compliance Updated chapters: • FXxx operating range and RF bandwidths is updated for FXEA details • FHxx operating range and RF bandwidths is updated for FHDA and FHEA details • TX power of GSM configurations and TX output power tolerance details are added in RRH Module power requirements chapter. DN0947122 Id:0900d805809ee331 7 Confidential
CE marking Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description 2 CE marking Figure 1 CE marking Hereby, Nokia Siemens Networks declares that this Base Station is in compliance with the essential requirements and other relevant provisions of Directive: 1999/5/EC. 8 Id:0900d80580970a4e DN0947122 Confidential
Flexi Multiradio BTS GSM/EDGE RF Module and RRH FCC Part 15 compliance Module Description 3 FCC Part 15 compliance This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide rea- sonable protection against harmful interference in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manuals, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interfer- ence at his own expense. Changes or modifications not expressly approved by the party responsible for compliance could void the user´s authority to operate the equipment. DN0947122 Id:0900d80580970a4f 9 Confidential
RSS-310 compliance Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description 4 RSS-310 compliance This device complies with RSS-310 of Industry Canada. Operation is subject to the con- dition that this device does not cause harmful interference. 10 Id:0900d80580970a50 DN0947122 Confidential
Flexi Multiradio BTS GSM/EDGE RF Module and RRH Overview Module Description 5 Overview 5.1 Overview of Flexi Multiradio BTS RF Module (FXxx) The Flexi Multiradio Radio Frequency Module (FXxx) or RF Module, is a 3-branch multi- carrier, multi-standard radio transceiver module. The module consists of three indepen- dent branches, capable of transmitting and receiving signals of multiple radio technolo- gies concurrently: • Up to 6 GSM carriers with 400 KHz minimum carrier separation • Up to 4 WCDMA carriers with 4.6 MHz minimum carrier separation • Multi-carrier LTE signal with 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, and 35 MHz carrier bandwidth • Multi RAT operation with combination of GSM, WCDMA, and LTE g In this document, the RF Modules FXDA, FXDJ, FXEA, FXCA, and FXFA/ FXFB are referred to as 60 W RF Module variants. RF Modules FXCB, FXDB, FXEB, and FXFC are referred to as 80 W RF Module variants. g No support for Motorola protocol used in ex-Siemens TMA. 3x60W and 3x80W RFMs have identical ALD interface support, but ALD power feeding capability is less with Vegas. Each branch consists of a transmitter and two receiver chains. FXxA and FXFB (60 W) variants have front end software tunable filters (STuF). 80 W RF Module variants have fixed full band filters. FXxx is a 3U high module with an integrated, replaceable 3-fan assembly for module cooling. The supported functions are: • Chaining up to six RF Modules with OBSAI RP3_01 • 2-way receive diversity in the receiver chains • Integrated antenna line supervision • MHA, Antenna Hopping, EGPRS2, and VAMOS support • Digital and control circuitry, optical interface, DC/DC power conversion, and other necessary functionalities • Integrated DC line OVP, Class II rated to 5kA pulse (FXFB, 80 W RF Module vari- ants) • Remote Electrical Tilt (RET) support (FXFB, 80 W RF Module variants) Flexi Multiradio BTS GSM/EDGE modules are equipped with an integrated air guide plate providing full thermal compliance without casings. This allows installation of the modules without casings in Flexi cabinets and enclosed 19" racks. Casings and covers are recommended in standalone 19" racks (no cabinet) for safety reasons. Casings are not part of the FXxx delivery package. If the configuration requires casings, Flexi BTS Module Casing (EMHA) kits must be ordered. The Flexi Multiradio RF Module variants are: Version Description FXCA 850 60 W Table 1 Flexi Multiradio RF Module variants DN0947122 Id:0900d805809d2bf6 11 Confidential
Overview Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description Version Description FXCB 850 band 80 W FXDA 900 60 W FXDB 900 80 W FXDJ 900 J-band (for CDMA co-siting) 60 W FXEA 1800 60 W FXEB 1800 80 W FXFA/ FXFB 1900 60 W FXFC 1900 80 W Table 1 Flexi Multiradio RF Module variants (Cont.) g The FXFx and FXCx variants have extra QMA connectors for E911 positioning systems. Figure 2 Isometric view of RF Module (FXDA, FXDJ, and FXEA) Figure 3 Isometric view of RF Module (FXFA and FXCA) 12 Id:0900d805809d2bf6 DN0947122 Confidential
Flexi Multiradio BTS GSM/EDGE RF Module and RRH Overview Module Description Figure 4 Isometric view of 80 W RF Module 5.1.1 Software tunable filters (STuF) in 60 W RF Module variants STuF is a mechanical filter which is tuned with a small step motor, controlled automati- cally by the BTS software. There is one STuF on each branch of the FXxA and FXFB RF Modules. STuF has specific bandwidth on both RX and TX bands. The STuF tuning range covers the whole band, therefore a tuning window can be allocated anywhere within the band. When STuF is tuned, both RX and TX are tuned at the same time as RX and TX sides are mechanically coupled together. STuF is tuned only when the carrier allocation requires this. STuF center frequency is determined from TX & RX main frequency requests and also from diversity frequency requests when diversity sharing is used between the branches. g 80 W RF Module variants have fixed full band filters. See Table 1 Flexi Multiradio RF Module variants. 5.1.2 Digital predistortion (DAPD) The reference signal for digital predistortion and RF power control is provided by predis- tortion RX path (PDRX). The power amplifier delivers the coupled and attenuated TX signal to the PDRX. For digital pre-distortion and RF power control, this signal is atten- uated, band pass filtered, and down-converted. The predistorter improves the MCPA’s (TX) RF performance and is implemented in both hardware and software. DN0947122 Id:0900d805809d2bf6 13 Confidential
Overview Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description 5.1.3 FXxx operating range and RF bandwidths FXCA FXDA FXDJ FXEA FXFA/B 850 MHz 900 MHz 900-J MHz 1800 MHz 1900 MHz TX fre- 880-915 925-960 935-960 1805-1880 1930-1990 quency range RX fre- 806-849 880-915 890-915 1710-1785 1850-1910 quency range DL instanta- 15 20 12.5 25 20 neous band- width UL instanta- 15 20 12.5 30 20 neous band- width DL filter 15 20 12.5 30 20 bandwidth UL filter 15 20 12.5 30 20 bandwidth Duplex 45 45 45 95 80 spacing Table 2 60 W RF Module Frequency Range and Bandwidths FXCB FXDB FXEB FXFC 850 MHz 900 MHz 1800 MHz 1900 MHz TX frequency range 869-894 925-960 1805-1880 1930-1990 RX frequency range 824-849 880-915 1710-1785 1850-1915 DL instantaneous band- 35 35 35 25 width UL instantaneous band- 25 35 60 60 width DL filter bandwidth 25 35 75 65 UL filter bandwidth 25 35 75 65 Duplex spacing 45 45 95 90 Table 3 80 W RF Module Frequency Range and Bandwidths 5.2 Overview of Flexi Multiradio BTS RRH Module (FHxx) The Flexi Multiradio Radio Remote Radio Head (FHxx) or RRH, is a 2-branch multicar- rier, multi-standard radio transceiver module. Each branch consists of a transmitter and 14 Id:0900d805809d2bf6 DN0947122 Confidential
Flexi Multiradio BTS GSM/EDGE RF Module and RRH Overview Module Description receiver chain. It is intended for outdoor mounting and optimized for feederless applica- tions. g In this document, the RRH Modules FHDA and FHEA are referred to as 2x40 W RRH. FHDB and FHEB variants are referred to as 2x60 W RRH. g The following 2x60 W RRH variants do not support the legacy Siemens MHA/TMA: FHDB, FHEB. The module consists of two independent branches, capable of transmitting and receiv- ing signals of multiple radio technologies concurrently: • Up to 6 GSM carriers with 400 KHz minimum carrier separation • 2x60 W TX capability (Note that FHxA variants have 2x40 W TX capability) • EGPRS2 and VAMOS support • Up to 4 WCDMA carriers with 4.6 MHz minimum carrier separation • Multi-carrier LTE signal with 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, and 20 MHz carrier bandwidth • Multi RAT operation with a combination of GSM, WCDMA, and LTE The supported functions are: • Chaining up to three RF Modules with OBSAI RP3-01 • Integrated antenna line supervision • MHA and RET support • Digital and control circuitry, optical interface, DC power input, and other necessary functionalities • Integrated DC line OVP, Class II rated to 5kA pulse • Input DC voltage monitoring The FHxx is installed on a pole or wall. Pole mounting kits supported by the FHxx are Flexi Pole Mounting Kit (FPKA) and Pole Mounting Kit (VMPB). For wall installations, the FHxx is mounted directly to the wall. The FHxx has no cooling fans, and relies on convection cooling. To ensure proper cooling, FHxx should always be mounted in a vertical orientation with connectors on the bottom side. The Flexi Multiradio BTS GSM/EDGE RRH Module variants are: Version Description FHDA 900 band 2x40 W FHEA 1800 band 2x40 W FHDB 900 band 2x60 W FHEB 1800 band 2x60 W Table 4 Flexi Multiradio BTS RRH Module variants DN0947122 Id:0900d805809d2bf6 15 Confidential
Overview Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description Figure 5 Isometric view of 2x40 W RRH Module Figure 6 Isometric view of 2x60 W RRH Module g The DC Input connector and protective cap is not shown in the above figure for 2x60 W RRH. 16 Id:0900d805809d2bf6 DN0947122 Confidential
Flexi Multiradio BTS GSM/EDGE RF Module and RRH Overview Module Description 5.2.1 FHxx operating range and RF bandwidths FHDA 900 MHz FHEA 1800 MHz TX filter frequency range 925-960 MHz 1805-1880 MHz RX filter frequency range 880-915 MHz 1710-1785 MHz TX instantaneous bandwidth 25 MHz (A.10x ver- 23 MHz (A.10x version)25 sion)30.2 MHz (A.20x MHz (A.20x version) version) RX instantaneous bandwidth 35 MHz 40 MHz TX filter bandwidth 35 MHz 75 MHz RX filter bandband 35 MHz 75 MHz Duplex spacing 45 MHz 95 MHz Table 5 RRH 2x40 W RF Frequency Range and Bandwidths FHDB 900 MHz FHEB 1800 MHz TX filter frequency range 925-960 MHz 1805-1880 MHz RX filter frequency range 880-915 MHz 1710-1785 MHz TX instantaneous bandwidth 35 MHz 35 MHz RX instantaneous bandwidth 35 MHz 60 MHz TX filter bandwidth 35 MHz 75 MHz RX filter bandband 35 MHz 75 MHz Duplex spacing 45 MHz 95 MHz Table 6 RRH 2x60 W RF Frequency Range and Bandwidths DN0947122 Id:0900d805809d2bf6 17 Confidential
RF Module and RRH main blocks Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description 6 RF Module and RRH main blocks 6.1 RF Module (FXxx) main blocks The RF Module (FXxx) includes the following functional blocks: • RF Baseband (RF BB) – RF control • Provides three optical interfaces with the System Module or other RF modules (OBSAI RP3_01) • Provides the external alarm interface • Most of the module internal connections are made through this block • Processes signals and module control functionalities – Transmitter • Direct conversion from TX interface to TX RF • Digital power control • TX Double Power and IDD support – Predistortion transmitter – Receiver • Dual down conversion from RX RF to RX baseband signal • Diversity reception • Power Amplifier (PA) – Amplifies signal coming from RF BB TX output and feeds it to TX input of the filters • RF Front end – Includes three duplexers and three diversity RX filters with LNAs and RF test loops – Processes air interface RF signals for selected channels – Provides connection for Flexi Antenna Line to Flexi Multiradio Base Station – Supports usage of NSN Masthead Amplifier (MHA) units – Provides the supply voltage to the Flexi Antenna Line units via main antenna branch – Provides the supply voltage for dual MHA unit via diversity antenna branches or two single MHAs via both antenna lines – Contains integrated bias-Ts with over-current and undercurrent alarm detec- tion/protection • Power supply unit (PSU) – Contains power input and distribution of internal supply voltages • Fan assembly • Consists of three separate fans and a fan plate which mechanically mounts to the fan shroud 18 Id:0900d805809ee259 DN0947122 Confidential
Flexi Multiradio BTS GSM/EDGE RF Module and RRH RF Module and RRH main blocks Module Description Figure 7 RF Module (FXxx) main blocks g FHDB/FHEB features Bias-T only in port 1 to support dual MHA. 6.2 RRH Module main blocks The RRH includes the following functional blocks: • RF control block DN0947122 Id:0900d805809ee259 19 Confidential
RF Module and RRH main blocks Flexi Multiradio BTS GSM/EDGE RF Module and RRH Module Description • There are interfaces from the RF control block towards the System Module through optical connection. Most unit internal connections are made from the RF control block. Signal processing and unit control functionalities are located in this block • TX block • Analogue RF parts are located in the TX block • RF Front end • Includes an RX filter with LNAs • Processes air interface RF signals for selected channels • Provides connection for Flexi Antenna Line to Flexi Multiradio Base Station • Supports usage of NSN Masthead Amplifier (MHA) units • Provides the supply voltage to the Flexi Antenna Line units via main antenna branch • Contains integrated bias-Ts with over-current and undercurrent alarm detec- tion/protection • PA block • The power amplifier block amplifies TX block output signal to a specified output power level • RX block • The RX block includes two 2-carrier receivers • Antenna filter block • Antenna filtering for TX and RX signals is done in the Antenna filter block See the following figure for the functional blocks of the RRH. Optical IF RX RX filter Bias-T VSWR Optical IF LNA Det TX RF PA TX filter RF RF control loop EAC RX RX filter Bias-T VSWR RET LNA Det TX RF PA TX filter DC IN PSU Figure 8 Functional blocks of the 2x40 W RRH g 2x60 W RRH have the same functional blocks as 2x40 W RRH except that 2x60 W RRH have have bias T only on Branch 1 (with ANT1) to support dual MHAs. 20 Id:0900d805809ee259 DN0947122 Confidential