Introduction to-zxsdr-products-gsm

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Introduction to-zxsdr-products-gsm

  1. 1. Introduction to ZXSDR Products Internal Use Only▲Introduction to ZXSDR Products (GSM) (V2009-R1.0) ZTE CORPORATIONConfidential and Proprietary Information of ZTE CORPORATION.
  2. 2. Introduction to ZXSDR Products Internal Use Only▲Introduction to ZXSDR Products (GSM)(V2009-R1.0) Planned by: Engineering Service Division , Mobile Product Support Center , ZTE Corporation Complied by: Zhao Yanghao Reviewed by: Liu Zike Zhang Huamin * * * * ZTE CORPORATION Address: ZTE Plaza, Keji Road South, Hi-tech Industrial Park, Nanshan District, Shenzhen, P.R. China Post code: 518057 Technical support website: http://tsm.zte.com.cn Hotline: +86 755 26770800 800-830-1118 Fax: +86 755 26770801 * * *Confidential and Proprietary Information of ZTE CORPORATION.
  3. 3. Introduction to ZXSDR Products Internal Use Only▲ Legal InformationAll rights reserved. No part of this documentation may be excerpted,reproduced, translated, annotated or duplicated, in any form or by any meanswithout the prior written permission of ZTE Corporation. and are the registered trade marks of ZTE Corporation. The namesand logos of ZTE products are proprietary logos or registered trade marks. Thenames of other products and companies mentioned in this manual may beproprietary to their owners respectively. Without the prior written permission ofZTE or the owners of third-party trade marks or trade names, this manual doesnot grant the reader any permission or right to use any marker appeared in themanual.The product described herein conforms to the design requirements ofenvironment protection and human security. The storage, usage, and discardof the product shall comply with the manual, related contract, or laws andregulations of related countries.The actual product may differ from what is described in this standard due tofrequent update of ZTE products and fast development of technologies. Pleasecontact the local ZTE office for the latest updating information of the product.For the latest document information, please visit our website: http://tsm.zte.com.cnConfidential and Proprietary Information of ZTE CORPORATION.
  4. 4. Introduction to ZXSDR Products Internal Use Only▲ Preface ZXSDR is the new BTS product by ZTE Corporation. This document aims to make the readers know its background, technique features and commissioning method.Confidential and Proprietary Information of ZTE CORPORATION.
  5. 5. Introduction to ZXSDR Products Internal Use Only▲ Content1. What is SDR................................................................................................................................................1 1.1 Challenge in the Development of Communication Technology............................................................1 1.2 SDR Concept..........................................................................................................................................12. ZTE SDR Solution......................................................................................................................................2 2.1 Why to Select ZXSDR Series BTS........................................................................................................2 2.1.1 High-integrity...............................................................................................................................3 2.1.2 Flexible Architecture....................................................................................................................3 2.1.3 Multiple New Functions...............................................................................................................4 2.1.4 Lower Cost...................................................................................................................................4 2.2 Main Differences Between ZXSDR and Traditional 2G BTS...............................................................4 2.2.1 uTCA-based..................................................................................................................................4 2.2.2 BBU+RRU Architecture..............................................................................................................5 2.2.3 Introduction to OMCB.................................................................................................................6 2.2.4 IP Abis Interface...........................................................................................................................6 2.2.5 Multi-carrier Combination...........................................................................................................7 2.3 ZXSDR BTSs.........................................................................................................................................7 2.3.1 ZXSDR B8200.............................................................................................................................8 2.3.2 ZXSDR R8860 Hardware Structure...........................................................................................12 2.3.3 ZXSDR BS8800 GU360 Hardware Structure...........................................................................14 2.3.4 ZXSDR BS8900 GU360 Hardware Structure...........................................................................16 2.4 Conditions for the Subscription of SDR..............................................................................................183. ZTE SDR Networking..............................................................................................................................19 3.1 From the Angle of Abis Interface.........................................................................................................19 3.2 From the Angle of Network Topology.................................................................................................20 3.2.1 Networking of BBU and RNC/BSC..........................................................................................20 3.2.2 Networking of BBU and RRU...................................................................................................21 3.3 From the Angle of O&M......................................................................................................................23 3.3.1 Networking Sample....................................................................................................................23Confidential and Proprietary Information of ZTE CORPORATION.
  6. 6. Introduction to ZXSDR Products Internal Use Only▲4. ZXSDR Series BTS Hardware Installation............................................................................................25 4.1.1 B8200 Hardware Installation.....................................................................................................25 4.1.2 B8860 Hardware Installation.....................................................................................................29 4.1.3 B8200+R8860 Installation and Distribution Diagram...............................................................325. ZTE SDR Commissioning........................................................................................................................33 5.1 SDR BTS Commissioning Flow..........................................................................................................33 5.2 OMCR Data Configuration..................................................................................................................35 5.2.1 BSC Global Resource Configuration.........................................................................................36 5.2.2 Board Configuration of Abis and OMCB Interfaces.................................................................37 5.2.3 IP-Related Configuration...........................................................................................................39 5.2.4 Configuring a B8200 Site Under the OMCR.............................................................................43 5.3 OMCB Data Configuration..................................................................................................................46 5.3.1 Creating A SDR Management NE..............................................................................................46 5.3.2 Applying for Exclusion Right for the Management NE............................................................47 5.3.3 Creating A BTS Configuration Set.............................................................................................48 5.3.4 Physical Configuration...............................................................................................................49 5.3.5 Transmission Configuration.......................................................................................................50 5.3.6 Clock Configuration...................................................................................................................52 5.3.7 Optional Configuration..............................................................................................................52 5.3.8 Radio Configuration...................................................................................................................53 5.4 LMT Installation and Data Configuration............................................................................................54 5.4.1 SDR Logging in to the SDR with the Debugger........................................................................54 5.4.2 Configuring the SDR BTS Through the LMT...........................................................................54 5.4.3 Basic Property Configuration.....................................................................................................54 5.4.4 Physical Configuration...............................................................................................................55 5.4.5 Transmission Configuration.......................................................................................................56 5.4.6 Radio Configuration...................................................................................................................58 5.5 Data Synchronization Between the Foreground and the Background.................................................59Appendix........................................................................................................................................................61Confidential and Proprietary Information of ZTE CORPORATION.
  7. 7. Introduction to ZXSDR Products Internal Use Only▲ 1. What is SDR1.1 Challenge in the Development of Communication Technology With the increasing communication demands, new technologies come out in succession. The common concern for communication operators and equipment suppliers is how to upgrade equipment more flexibly and protect the investment of operators to greatest extent in the continuous technology updates. The SDR concept is proposed for this problem.1.2 SDR Concept The software defined radio (SDR) is defined as radio in which some or all of the physical layer functions are software defined. The traditional communication equipment, namely the hardware radio (HR), functions through the hardware. Therefore, functions are often improved by upgrading the equipment. SDR uses the hardware as a general processing platform and functions through the software. Thus, it provides a more flexible and low-cost solution. It also supports multiple systems, bands, and functions through the software. Figure 1.2-1 SDR Technology Facilitates the Function Improvement of Communication SystemConfidential and Proprietary Information of ZTE CORPORATION.
  8. 8. Introduction to ZXSDR Products Internal Use Only▲ 2. ZTE SDR Solution Now we have known what SDR technology is. Let’s take a look at SDR products. First, read the following news: “On the just-concluded 2008 broadband world forum (BBWF), B8200 and R8860, the innovative SDR products of ZTE, stood out from various solutions, winning the InfoVision award issued by IEC. BBWF, hosted by IEC, is an authorized grant event of the global broadband industry. The InfoVision award is designed for commending those significant technologies, applications, products, innovations, and services with special meaning and value in the Telecom industry. The awardees include enterprises and individuals that have developed innovative technologies and made great contributions to the society. Once again, ZTE boasts its leadership in the radio technology field by winning the top-level award with the innovative SDR product. “(www.sina.com) However, how can ZTE SDR products (ZXSDR) receive such a honor?2.1 Why to Select ZXSDR Series BTS ZTE SDR serial BTS are a brand-new series of radio products designed and produced by ZTE. They use the advanced SDR technology and their hardware structure is based on the uniform µ C T A platform of ZTE, innovatively supporting multiple radio access methods, including GSM, UMTS, CDMA2000, and WiMAX. In addition, SDR can be smoothly evolved into the Enhanced EDGE/LTE. Currently, the GSM networking mainly uses three types of SDR BTS: the first is indoor macro BTS, such as ZXSDR B8800 GU306; the second is outdoor macro BTS, such as ZXSDR B8900 GU306; the third is distributed BTS in which BBU is at the local end and RU is at the remote end (RRU), such as ZXSDR B8200 GU360 + ZXSDR B8860 GU906/GU186. For the structure, see Figure 2.1-2.Confidential and Proprietary Information of ZTE CORPORATION.
  9. 9. Introduction to ZXSDR Products Internal Use Only▲ Figure 2.1-2 Distributed BTS Compared with the traditional BTS, SDR has the following features aside from supporting multiple systems such as GSM and UMTS.2.1.1 High-integrity  Based on the All-IP transmission structure.  Support RU of multiple bands.  BBU supports 60TRX, and RU supports 6TRX/2TRX.  RU60 board supports 6TRX, and RU02 board supports 2TRX.  One fiber supports 24 TRXs.  2G supports a maximum capacity of S666666 or S12/12/12; 3G supports a maximum of 12CS; the dual mode supports a maximum of S333 + S666 (GSM + UMTS).  Support the smooth evolution to LTE and HSPA+2.1.2 Flexible Architecture  Support the macro BTS and RRU  BBU and RU within a cabinet is called a macro BTS. RRU is called aConfidential and Proprietary Information of ZTE CORPORATION.
  10. 10. Introduction to ZXSDR Products Internal Use Only▲ distributed BTS  Support FE/GE and E1/T1 (IPOE)  Do not support the channelized E1/T1 currently  Support the indoor/outdoor type  Small size, light weight, energy-saving and environment protection  Support the technology evolution2.1.3 Multiple New Functions  Baseband frequency hopping  Transmit/receive diversity  DDT/DPCT  Multi-carrier combination2.1.4 Lower Cost  Reduced unit cost  Reduced typical networking cost  Saved ABIS bandwidth  Reduced operating cost  Reduced maintenance cost2.2 Main Differences Between ZXSDR and Traditional 2G BTS ZXSDR features are described above. Now lets take a look at the main differences between ZXSDR and traditional 2G BTS.2.2.1 uTCA-based uTCA is the abbreviation of the Micro TCA that is the short form of the advanced Telecom computing architecture (ATCA). As a standard open architecture, uTCA provides options for communication system design on various components of different handovers, ports, protocols and functions, system architecture, redundancy and high availability.Confidential and Proprietary Information of ZTE CORPORATION.
  11. 11. Introduction to ZXSDR Products Internal Use Only▲2.2.2 BBU+RRU Architecture The separation between baseband and RF can maximize their own advantages. The baseband can obtain the maximum integrity, while RF focuses on the maximization of its own power and efficiency. Therefore, the networking is more flexible. After the separation, the baseband part is called base band unit (BBU), while the RF part is called remote radio unit (RRU). Their functions are displayed as shown in Figure 2.2-3. Figure 2.2-3 Separated Structure of Baseband and RF BTS is divided into BBU and RRU. One BBU can provide baseband resources for multiple RRU. Functions of BBU and RRU are as follows:  BBU is responsible for digital baseband signal handling and control management.  RRU is responsible for handovers between digital baseband signals and analog signals between RRU and antenna.  BBU is connected to RRU through the baseband-to-RF interface, and it transmits I/Q digital baseband signals and OAM signaling data. To ensure the real-time transmission, the interface should be an optical interface physically.  BBU is connected to BSC/RNC through the Abis/Iub interface.  RRU accesses MS/UE through the Um/Uu interface. Note: besides the distributed BTS ZXSDR B8200 GU360 + ZXSDR B8860 GU906/GU186 (see Figure 2.1-2), the baseband and RF of all ZXSDR BTS are separated. The so-called SDR macro BTS means BBU and RU within a cabinet. It is still two independent units physically. In addition, BBU in macroConfidential and Proprietary Information of ZTE CORPORATION.
  12. 12. Introduction to ZXSDR Products Internal Use Only▲ BTS BS8800 and BS8900 uses B8820 directly.2.2.3 Introduction to OMCB A traditional 2G BTS (such as BTSV2 and BTSV3) is configured and managed through OMCR, while the configurations of a SDR BTS should be performed on LMT or OMCB. OMCR is used to configure some radio data. The operate and maintenant center for NoedB (OMCB) is the O&M unit that manages NodeB in the 3GPP. As a dual-mode product supporting GSM and 3G, SDR also supports OMCB. The single-threaded link OMCR → BSC → BTS is changed into the dual-threaded link OMCB → BTS and OMCR → BSC → BTS. For BTS, an upper level is added, as shown in Figure 2.2-4. OMCB OMCR RNC BSC SDR Figure 2.2-4 SDR Network Management Structure Based on the management mode of WCDMA, the board management, configuration, software downloading, alarm of all SDRs are implemented on OMCB. For the dual mode, GSM O&M are transferred to OMCB, while OMCR only manages the GSM-related radio configuration and status management. This is the difference for OMCR in SDR environment.2.2.4 IP Abis Interface The other major difference for a SDR BTS from a traditional 2G BTS is that the Abis/Iub uses IP protocol. Its physical bearer can be FE/GE or E1/T1 (IP over E1/T1), but not the E1/T1 of TDM. If E1/T1 is used, BTS can fully use theConfidential and Proprietary Information of ZTE CORPORATION.
  13. 13. Introduction to ZXSDR Products Internal Use Only▲ existing transmission equipment to save the user investment; if FE/GE is used, BTS will obtain more bandwidth, which is oriented to the communication system evolution to all IP.2.2.5 Multi-carrier Combination The multi-carrier combination (MCUM) is the product of the introduction of 3G OTSR into the GSM system. To satisfy the complicated coverage requirements and special applications of high-speed movement (such as high-speed railway and freeway), the SDR can cover a single cell using antennas of different angles at different positions, that is, the multi-carrier combination coverage. Use the RRU to solve the problems such as antenna feeder and repeater. When multiple RRU downlink signals are the same, the uplink will select and combine one of these signals. Error: Reference source not found is an example of the multi-carrier combination application and high-speed railway. Because each cell is covered by multiple antennas in different positions, the coverage distance of the cell along the railway is increased significantly, thus effectively reduce the voice problems caused by inter-cell handovers. Figure 2.2-5 Multi-carrier Combination Application2.3 ZXSDR BTSs As mentioned above, the current GSM networking mainly uses three types of SDR BTS: the first is the indoor macro BTS, such as ZXSDR B8800 GU306;Confidential and Proprietary Information of ZTE CORPORATION.
  14. 14. Introduction to ZXSDR Products Internal Use Only▲ the second is the outdoor macro BTS, such as ZXSDR B8900 GU306; the third is the distributed BTS (a BTS type that the BBU is at the local end, while the RU is at the remote end (RRU)), such as ZXSDR B8200 GU360 + ZXSDR R8860 GU906/GU186. For the structure. Now we will give a brief introduction for the B8200, R8860, BS8800, and BS8900 respectively.2.3.1 ZXSDR B8200  ZXSDR B8200 system description ZXSDR B8200 GU360 is a dual-mode baseband unit based on the uTCA platform. It can support the GSM or UMTS system or both, and share the common control function and transmission. ZXSDR B8200 GU360 supports a maximum of 60 GSM carriers, or 12 UMTS carrier-sectors.  ZXSDR B8200 hardware structure For ZXSDR B8200, see Figure 2.3-1. The cabinet is 2U high and 19 inch wide, and is easy to be inserted with a 19 inch standard rack. Figure 2.3-6 ZXSDR B8200 For the board function and interface of the ZXSDR B8200, see Figure 2.3- 2.Confidential and Proprietary Information of ZTE CORPORATION.
  15. 15. Introduction to ZXSDR Products Internal Use Only▲ Figure 2.3-7 ZXSDR B8200 Board and Interface (slot numbers in red) In the figure, the two rightmost boards inserted vertically are the dustproof mesh and fan modules. Other boards are:  Clock and control module (CC): a) Function: frame management, GPS/BITS clock access, Abis/Iub interface, Ethernet switch (switch between the signaling stream and media stream) b) Location: fixed in slot 1 or 2. You can insert one or two (active/standby) boards.  Network switch module (FS): a) Function: provide the interface between the BBU and RRU to switch the baseband IQ data. b) Location: fixed in slot 3 or 4. You can insert one or two (for load sharing) boards.  Baseband processing board (BP): a) Function: the BP board can be divided into two categories: the UBPG (common GSM baseband processing board) supporting the GSM, which modulates/demodulates 12 IQ channels, and supports baseband FM and dynamic/static power control; the BPC (baseband processing C board) supporting the UMTS,Confidential and Proprietary Information of ZTE CORPORATION.
  16. 16. Introduction to ZXSDR Products Internal Use Only▲ which is also responsible for operations such as coding/decoding and power control. For the dual modes, both UBPG and BPC should be inserted. b) Location: slot 5, 6, 7, or 8, or slot 3 or 4 (only one is inserted, because the FS needs a slot). All BP boards are oriented to the sharing operation.  Field alarm module (SA): a) Function: provide 8 E1/T1 interfaces, dry contact interfaces (6 inputs + 2 inputs/outputs), and alarm monitoring. b) Location: fixed in slot 13.  Power management module (PM): a) Function: provide -48 V DC input, and the power management function such as over-/under-voltage protection. b) Location: insert one or two (active/standby) boards in slots 14 and 15. For the external interface of the B8200, see Figure 2.3-2. For the function of each interface, see Table 2.3-1. Table 2.3-1 ZXSDR B8200 External Interfaces Remote Local Cable Cable Cable No. Connection Cable Name Cable Usage Medium/Typ Connection Position e Position Optical CPRI CPRI Connect the BBU single interface of the 1 interface on interface and the RRU, and mode optical FS board on the RRU cable transmit IQ signals fiber the B8200 Power 10 square interface of the B8200 B8200 power supply millimeter 2 DC -48 V PM board on power cable cable power the B8200 supply cable MON on the 3 PM board on the B8200 4 DB44 lug of E1 stub SA panel Connect E1 signalConfidential and Proprietary Information of ZTE CORPORATION.
  17. 17. Introduction to ZXSDR Products Internal Use Only▲ Remote Local Cable Cable Cable No. Connection Cable Name Cable Usage Medium/Typ Connection Position e Position from the the SA panel optical cable line terminal on the DDF rack DB9 lug of External Connect line the SA panel debugging RS232/RS485 serial line equipment port cable DB25 lug of Position to Connect dry contact the SA panel be monitored signal cable line EXT external EXT communication port interface of the (485 or PP1S+/2M+ 5 CC board on interface) which is the B8200 connected to the external receiver REF port of GPS GPS Receive the GPS 6 the CC board lighting antenna signals on the B8200 protector feeder cable Connect the Ethernet ports between the BBU ETH0 GE and RNC. This port is interface IP network electrical categorized into two 7, (electrical RJ45 UTP connected to interface types: Ethernet optical 8 interface) of CAT-5/CAT-6 the RNC cable of the interface and electrical the CC board Iub interface interface on the B8200 (10M/100M/1000M adaptive) Used for the ETH1 GE cascade, debugging, or interface IP network electrical local maintenance of (electrical RJ45 UTP 9 connected to interface the BBC, and the interface) of CAT-5/CAT-6 the RNC cable of the Ethernet electrical the CC board Iub interface interface(10M/100M/10 on the B8200 00M adaptive)Confidential and Proprietary Information of ZTE CORPORATION.
  18. 18. Introduction to ZXSDR Products Internal Use Only▲2.3.2 ZXSDR R8860 Hardware Structure  ZXSDR R8860 system description ZXSDR R8860 is the outdoor dual-mode RF remote unit in the ZXSDR serial BTSs. The core of the R8860 is the multi-carrier technology. The R8860 can be used as the RF unit of the GSM or UMTS independently, and can be operated in both GSM and UMTS systems simultaneously. It forms the dual-mode BTS with the BBU. When the R8860 is used as the RF unit of the GSM, it can support 1 - 6 carriers; when it is used as the RF unit of the UMTS, it can support a maximum of four carrier-sectors; when it is operated in both GSM and UMTS systems, it can support a maximum of four GSM carriers + one UMTS carrier-sector. The R8860 can be categorized into ZXSDR R8860 GU906 and ZXSDR R8860 GU186.  The GU indicates that the GSM and UMTS dual modes are supported.  The 906 indicates that the GSM900 and UMTS900 are supported, and the transmitting power is 60 W.  The 186 indicates that the GSM1800 and UMTS1800 are supported, and the transmitting power is 60 W.  ZXSDR R8860 hardware structure For the ZXSDR B8860, see the following figure.Confidential and Proprietary Information of ZTE CORPORATION.
  19. 19. Introduction to ZXSDR Products Internal Use Only▲ Figure 2.3-8 ZXSDR R8860 Appearance For the external interfaces of the B8860, see the following figure. Figure 2.3-9 ZXSDR R8860 External Interfaces For the connections between interfaces and cables, see Table 2.3-2. T 2.3-2 ZXSDR R8860 External InterfacesNo. Label Interface Interface Type/ConnectorConfidential and Proprietary Information of ZTE CORPORATION.
  20. 20. Introduction to ZXSDR Products Internal Use Only▲ Interface between1 LC1 BBU and RRU/RRU LC optical interface (IEC 874) cascading interface Interface between2 LC2 BBU and RRU/RRU LC optical interface (IEC 874) cascading interface AISG device 8-core aerial socket (IEC 60130-9-3 AISG interface ED) External device4 Mon interface (monitoring, 37-core aerial socket LMT, etc.) DC interface: connector5 DC IN Power interface XCG18T4K1P1-01+XC18FJJP1-10.5 Cable cross-sectional area: 1.5mm² Receive diversity RF6 RX 50Ω DIN connector cable interface Receive/Transmit7 RX/TX main set RF cable 50Ω DIN connector interface Frequency8 RXout N-KY (MIL-C-39012 or IEC 169-16) expansion interface Frequency9 RXin N-KY (MIL-C-39012 or IEC 169-16) expansion interface Equipment10 GND Cable cross-sectional area: 35mm² grounding2.3.3 ZXSDR BS8800 GU360 Hardware Structure  BS8800 system description The BS8800 GU360 is a dual-mode indoor macro BTS, supporting both GSM (850M/900M/1800M/1900M) and UMTS (850M/900M/1800M/1900M/2.1G) radio systems simultaneously. It can act as a GSM/UMTS macro BTS independently, and support the soft base station in some bands (850M/900M/1800M/1900M). The appearance is shown as in Figure 2.3-5. The single cabinet of the BS8800 GU360 supports a maximum of 36 GSMConfidential and Proprietary Information of ZTE CORPORATION.
  21. 21. Introduction to ZXSDR Products Internal Use Only▲ carriers. When the station configures more than 36 carriers, you can add an auxiliary cabinet of 36 carriers capacity. In Figure 2.3-5, cabinet 2 is the main cabinet, and cabinet 1 is the auxiliary cabinet. Figure 2.3-10 ZXSDR BS8800  BS8800 hardware structure The baseband and the RF are separated in the BS8800 GU360. For the internal structure, see Figure 2.3-6. In the figure, the baseband is B8200, and the RF has three options:  RU60: it is the dual-mode multi-carrier RF unit, supporting six GSM carriers, four UMTS carrier-sector, four GSM carriers + one UMTS carrier-sector, or two GSM carriers + two UMTS carrier-sectors.  RU02: it is the GSM single-mode double-density RF unit, supporting two GSM carriers.  RU40: it is the UMTS single-mode multi-carrier RF unit, supporting four UMTS carrier-sectors.Confidential and Proprietary Information of ZTE CORPORATION.
  22. 22. Introduction to ZXSDR Products Internal Use Only▲ Figure 2.3-11 ZXSDR BS8800 Internal Structure2.3.4 ZXSDR BS8900 GU360 Hardware Structure  BS8900 system description The BS8900 GU360 is a dual-mode indoor macro BTS, supporting both GSM (850M/900M/1800M/1900M) and UMTS (850M/900M/1800M/1900M/2.1G) radio systems at the same time. It can act as a GSM/UMTS macro BTS independently, and support the soft base station in some bands (850M/900M/1800M/1900M). The single cabinet of the BS8900 GU360 supports a maximum of 36 GSM carriers. When the station configures more than 36 carriers, you can add a RF cabinet or an auxiliary station-supported cabinet supporting the RFConfidential and Proprietary Information of ZTE CORPORATION.
  23. 23. Introduction to ZXSDR Products Internal Use Only▲ unit.  BS8900 hardware structure The baseband is separated from the RF in the BS8800 GU360. The baseband is B8200, and the RF has three options:  RU60: it is the dual-mode multi-carrier RF unit, supporting six GSM carriers, four UMTS carrier-sector, four GSM carriers + one UMTS carrier-sector, or two GSM carriers + two UMTS carrier-sectors.  RU02: it is the GSM single-mode double-density RF unit, supporting two GSM carriers.  RU40: it is the UMTS single-mode multi-carrier RF unit, supporting four UMTS carrier-sectors. The BS8900 GU360 can configure the following cabinets:  Station-supported cabinet BC8910: it is used to store the power system, baseband pool unit, heat exchanger, and transmission equipment.  Station RF cabinet RC8910: it is used to store the RF.  Station-supported cabinet RC8911: it is used to store the RF unit and battery.  Station-supported cabinet RC8931: it is used to store the RF unit and storage battery.  Battery cabinet PC8910: it is used to store the storage battery. The BS8900 GU360 can form multiple combinations by the above cabinets. Where, the BC8910, RC8910, RC8911, and PC8910 share the same appearance and size. For the appearance and internal structure of the RC8931 + BC8910 + RC8910 combination, see Figure 2.3-7.Confidential and Proprietary Information of ZTE CORPORATION.
  24. 24. Introduction to ZXSDR Products Internal Use Only▲ Figure 2.3-12 ZXSDR BS8900 Appearance and Internal Structure (A Combination)2.4 Conditions for the Subscription of SDR Now we have a preliminary concept of the SDR. Let’s take a look at the conditions for the subscription of the SDR.  The iBSC needs an IP interface board IPBB (the physical board is BIPI (100 M) or GIPI (Gigabit)) to provide the FE interfaces for the SDRs of the OMCB and FE Abis.  If the Abis interface is E1/T1, the DTB and EUIP (the physical board is EIPI) should be configured as the interface board of the IP over E1/T1.  The iBSC version should be iBSCV6.20 or later.  The iSMG version should be iSMGV6.20 or later.  The NetNumen version should be MinosV6.10.410d or later.Confidential and Proprietary Information of ZTE CORPORATION.
  25. 25. Introduction to ZXSDR Products Internal Use Only▲ 3. ZTE SDR Networking Now we know so many advantages of the SDR, but how to use the SDR? In this chapter, we will learn this point, including networking, installation, and commissioning. Let’s start with the SDR networking. Each network shows different networking figures at different angles. So does the SDR BTS networking. Let’s learn the SDR networking from three angles: Abis networking interface, BSC/BBU/RRU topology, and the O&M network management of the SDR.3.1 From the Angle of Abis Interface Currently, the SDR BTS only supports the IP Abis interface. Its physical bearer can be FE/GE or E1/T1 (IP over E1/T1), but can not be the TDM E1/T1. When the FE/GE is used, the networking of the SDR and BSC is as shown in Figure 3.1-1. This networking can obtain more transmission bandwidth. Router Switch P C M/X .2 5/DDN. . . BBU Router Switch iBSC Figure 3.1-13 The Networking when the Abis Interface Uses the FE/GE For E1/T1, the networking of the SDR and BSC is as shown in Figure 3.1-2. This networking can fully use the existing transmission equipment and save the user investments.Confidential and Proprietary Information of ZTE CORPORATION.
  26. 26. Introduction to ZXSDR Products Internal Use Only▲ SDH DDF Transmission cable . BBU SDH DDF iBSC Figure 3.1-14 The Networking when the Abis Interface Uses the E1/T13.2 From the Angle of Network Topology The network topology of the SDR can be categorized into the networking of BBU and RNC/BSC and the networking of BBU and RRU.3.2.1 Networking of BBU and RNC/BSC The networking of BBU and RNC/BSC is categorized into star and chain, as shown in Figures 3.2-1 and 3.2-2. The networking of the SDR macro BTS B8800/B8900 and RNC/BSC is the same as that of the BBU and RNC/BSC.  For the star networking, the BSC/RNC in each site will introduce n transmission links directly, and all the BTS equipment on each site are the end equipment. See Figure 3.2-1. The star networking features simple networking, convenient maintenance and engineering, less processes for signals, and high reliability of the line. However, the star networking demands the most transmission lines compared with other networks.Confidential and Proprietary Information of ZTE CORPORATION.
  27. 27. Introduction to ZXSDR Products Internal Use Only▲ Figure 3.2-15 BBU Star Networking  Chain networking The chain networking is used for band-distributed, low line density areas, such as freeways and railways. Theoretically, the B8200 supports five- level cascades. However, to avoid the deterioration of the clock performance, the number of BTS cascades in the chain networking should not higher than level 4, as shown in Figure 3.2-2. The chain networking can save a lot of transmission equipment. But because the signals should pass many processes, the line is reliable. Figure 3.2-16 BBU Chain Networking3.2.2 Networking of BBU and RRU The networking of the BBU and RRU is categorized into star and chain.  Star networkingConfidential and Proprietary Information of ZTE CORPORATION.
  28. 28. Introduction to ZXSDR Products Internal Use Only▲ The ZXSDR B8200 GU360 can use the star networking, and use the fiber for the transmission. Its networking is shown as in Figure 3.2-3. The ZXSDR B8200 GU360 can form a star network with a maximum of 12 RRU star. Figure 3.2-17 RRU Star Networking  Chain Network For the chain networking, the RRU is connected to the RRU of the ZXSDR B8200 GU360 or cascade through the optical fiber interface. See Figure 3.2-4. The ZXSDR B8200 GU360 supports a maximum of level 4 RRU chain networking. The chain networking is applicable for band-distributed, low line density areas. It can save a lot of transmission equipment.Confidential and Proprietary Information of ZTE CORPORATION.
  29. 29. Introduction to ZXSDR Products Internal Use Only▲ Figure 3.2-18 RRU Chain Networking3.3 From the Angle of O&M3.3.1 Networking Sample Remember what is OMCB? In the above chapter, we know that the difference between the SDR and the traditional 2G BTS is that the SDR BTS has two network managements: one is OMCR, the other is OMCB. Most of the operations are performed on the OMCB. See Figure 2.2-2 if you can not recall it. In the actual networking, the OMCB and OMCR can be installed on two independent servers, or be integrated into a network management (iSMG) and installed in a server (SBCX). How the OMCB communicates with the SDR then?  Networking Description When the OMCB and OMCR are deployed in combination, they are still two independent network management units logically. They are just installed on the SBCX board physically. Then, the iBSC should provide two sets of IP interfaces which will be connected to the SDR BTS and OMCB server; the iBSC should be configured with a virtual address (RPU interface address). The networking is shown in Error: Reference source not found.  The connection between the SDR and BSC: for physical E1 access, the interface board at SDR side is the SA, while the interface board at BSC side is DTB (should work with EUIP to implement the IP access); For FE/GE access, the interface board at SDR side is CC, while theConfidential and Proprietary Information of ZTE CORPORATION.
  30. 30. Introduction to ZXSDR Products Internal Use Only▲ interface board at BSC side is IPBB.  Connection between the OMCB and BSC: For FE/GE access, the OMCB interface is the external network interface of the SBCX. It is usually the HEART1. The IPBB is used at BSC side. IPBB_SDR/ OMCB IPBB_OMCB RPU SDR EUIP_SDR 139.1.1.200 139.1.1.254 118 .18.1.1 118 .18.2.254 18 .18.2.100 Switch Figure 3.3-19 OMCB O&M System Network TopologyConfidential and Proprietary Information of ZTE CORPORATION.
  31. 31. Introduction to ZXSDR Products Internal Use Only▲ 4. ZXSDR Series BTS Hardware Installation This chapter describes the BTS installation of the SDT. As the macro BTS installation of the SDR is the same as that of other macro BTSs, no more detailed will be given here. But it is easy and flexible to install the distributed BTS, because its volume is small and its BBU is separated from the RRU.4.1.1 B8200 Hardware Installation ZXSDR B8200 is a 19-inch standard cabinet. It features compact size and easy installation. It supports several installation methods: indoor stand installation (19-inch rack, also called gantry support), wall installation, pole installation, and outdoor installation.  The most common installation is to use the existing or new indoor floor stand, which is a 19-inch rack. Besides B8200, it can be installed with other stand equipment such as a router.  In wall installation, install the cabinet ZXSDR BC8180 and then the B8200. The internal structure of the ZXSDR BC8180 is similar to the installation structure of the indoor floor stand. That is, the ZXSDR BC8180 is a small indoor floor structure. For its appearance, see Figure 3.3-1. And for its internal structure, see Figure 3.3-2.Confidential and Proprietary Information of ZTE CORPORATION.
  32. 32. Introduction to ZXSDR Products Internal Use Only▲ Figure 3.3-1 ZXSDR BC8180 Appearance Figure 3.3-2 ZXSDR BC8180 Internal StructureConfidential and Proprietary Information of ZTE CORPORATION.
  33. 33. Introduction to ZXSDR Products Internal Use Only▲ Figure 3.3-3 shows the wall installation when the ZXSDR BC8180 is used. Figure 3.3-3 ZXSDR BC8180 Wall Installation  In wall installation, you can also use a simple frame, as shown in Figure 3.3-4: the simple frame is 4U high. You can insert two B8200s or one B8200 and one lighting arrestor to the frame. Figure 3.3-4 ZXSDR BC8180 Simple Wall Installation  In pole installation, also install the cabinet ZXSDR BC8180 first, as shownConfidential and Proprietary Information of ZTE CORPORATION.
  34. 34. Introduction to ZXSDR Products Internal Use Only▲ in Figure 3.3-5. Figure 3.3-5 ZXSDR BC8180 Pole Installation  In outdoor installation, install the outdoor cabinet ZXDU58 W121 and then B8200. Figure 3.3-6 shows the installation.Confidential and Proprietary Information of ZTE CORPORATION.
  35. 35. Introduction to ZXSDR Products Internal Use Only▲ Figure 3.3-6 Outdoor Cabinet ZXDU58 W121 Installation4.1.2 B8860 Hardware Installation The B8860 can be installed in three methods: wall installation, pole installation, and floor installation, as shown in Figures 3.3-7, 3.3-8, and 3.3-9 independently.Confidential and Proprietary Information of ZTE CORPORATION.
  36. 36. Introduction to ZXSDR Products Internal Use Only▲ Figure 3.3-7 ZXSDR R8860 Wall Installation Figure 3.3-8 ZXSDR R8860 Pole InstallationConfidential and Proprietary Information of ZTE CORPORATION.
  37. 37. Introduction to ZXSDR Products Internal Use Only▲ Figure 3.3-9 ZXSDR R8860 Floor InstallationConfidential and Proprietary Information of ZTE CORPORATION.
  38. 38. Introduction to ZXSDR Products Internal Use Only▲4.1.3 B8200+R8860 Installation and Distribution Diagram Figure 3.3-10 B8200+R8860 Installation and Distribution DiagramConfidential and Proprietary Information of ZTE CORPORATION.
  39. 39. Introduction to ZXSDR Products Internal Use Only▲ 5. ZTE SDR Commissioning5.1 SDR BTS Commissioning Flow The following figure shows the SDR BTS commissioning flow: BSC Commissioning Installation Preparation Commissioning OMCR Data Hardware Check Configuration Local OMCB Data Commissioning of Configuration LMT Installation & Configuration Check No Is link created? Yes Synchronize Data on Foreground and Background Service Testing End Figure 5.1-1 SDR Commissioning FlowConfidential and Proprietary Information of ZTE CORPORATION.
  40. 40. Introduction to ZXSDR Products Internal Use Only▲ SDR hardware installation includes SDR equipment installation and cable connection. BSC installation debugging includes hardware installation, background software installation, BSC data configuration, version management, connection of A and Gb interfaces, and service test. The background network management must be installed in the OMCR+OMCB (the iSMGV6.20 supports this). OMCR data configuration is the data configuration related to the SDR at the BSC side. It falls into four parts: BSC global resource setting, board configuration of the Abis interface, IP interface configuration, and radio parameter configuration of the SDR site. The OMCB is the operation and maintenance center of the SDR BTS. With it, you can configure SDR data and remotely maintain the SDR in the commissioning. LMT local debugging refers to connect the debugger to the SDR and configure local data through the LMT software. You can use the LMT to configure transmission-related information (such as IP address and route), physical information (such as board and topology relation), and partial radio information (such as band and central frequency ). You can also use it to manage the SDR version. Synchronization between the foreground and the background refers to transconfigure the data configured on the SDR at the foreground side to the OMCB at the background side, or synchronize the data configured on the OMCB at the background side to the SDR at the foreground side after link establishment between the foreground and the background. Before link establishment between the foreground and the background, the following four prerequisites must be satisfied:  The transmission network runs normally.  SDR interface-related parameters are correctly configured on the OMCR.  SDR management NE is correctly created on the OMCB.  Transmission parameters are correctly configured through the LMT.Confidential and Proprietary Information of ZTE CORPORATION.
  41. 41. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.1-2 Link Establishment Between the Foreground and Background Requires Cooperation of Four Prerequisites Note that LMT configurations are the same as OMCB configurations. When the SDR is subscribed, configure the data of the BSC side on the OMCR in one of the following two ways: 1. a. configure all data through the OMCB. b. configure SDR transmission parameters through the LMT. c. establish a link between the SDR and the OMCB. d. synchronize the data configured on the OMCB to the SDR. 2. a. configure all data though the LMT. b. create a SDR management NE on the OMCB. c. establish a link between the OMCB and the SDR. d. Transconfigure the SDR data to the OMCB. But the first method is recommended. The following sections simply describe main steps of this debugging method.5.2 OMCR Data Configuration[Task Purpose] 1. Set the BSC global resource configuration parameters. 2. Configure the Abis interface board and OMCB interface bard of the BSC. 3. Configure the Abis interface, OMCB interface, IP interface of the BSC virtual address. 4. Configure the logical site and radio parameters of the SDR.[Task Preparations] 1. The operating system, database and iOMCRV6.20 network management including the OMCR and OMCB are correctly installed and run normally. 2. The A interface and Gb interface of the iBSC are connected, and theConfidential and Proprietary Information of ZTE CORPORATION.
  42. 42. Introduction to ZXSDR Products Internal Use Only▲ dialing test is normal. 3. IP addresses of the SDR site, Abis interface on the BSC, OMCB interface, OMCB interface and the virtual IP address of the BSC are planned. The module number corresponding to the SDR on the BSC and Abis interface position are also planned.5.2.1 BSC Global Resource Configuration 1. Configure the IP addresses of the OMCB and IPabis for the BSC global resources, as shown in Figures 5.2-1 and 5.2.2. Figure 5.2-1 Property Configuration of the BSC Global Resources Figure 5.2-2 iBSC Virtual Address ConfigurationConfidential and Proprietary Information of ZTE CORPORATION.
  43. 43. Introduction to ZXSDR Products Internal Use Only▲5.2.2 Board Configuration of Abis and OMCB Interfaces  Board configuration of the Abis interface  When the Abis interface uses IPOverE1, configure the DTB board on the E1 interface of the Abis interface and add a EUIP board, as shown in Figures 5.2-3 and 5.2-4. Figure 5.2-3 PCM Property ConfigurationConfidential and Proprietary Information of ZTE CORPORATION.
  44. 44. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.2-4 HDLC Configuration of the EUIP Board  When the Abis uses FE, configure the IPBB board on the IP interface of the Abis interface, as shown in Figure 5.2-5.Confidential and Proprietary Information of ZTE CORPORATION.
  45. 45. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.2-5 Configuration of the IPBB Board to the Abis Interface  Create a IPBB board connected to the OMCB The configuration method is the same as the method for configuring the IPBB board to the FE Abis interface. See Figure 5.2-5. The IPBB to the OMCB and the IPBB to the SDR can use different network ports of the same board. But the two ports must be configured in different network segments.5.2.3 IP-Related Configuration  Create an IP Abis interface, as shown in Figures 5.2-6 and 5.2-7:Confidential and Proprietary Information of ZTE CORPORATION.
  46. 46. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.2-6 Create an IP Interface Figure 5.2-7 Select the RPU  Create an IPPB interface for the OMCB, as shown in Figures 5.2-6 and 5.2-8.Confidential and Proprietary Information of ZTE CORPORATION.
  47. 47. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.2-8 Select IPBB  Interface configuration when the Abis interface uses E1  Create an EUIP interface to the E1, as shown in Figures 5.2-6 and 5.2-9.Confidential and Proprietary Information of ZTE CORPORATION.
  48. 48. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.2-9 Select the EUIP Interface  Create IPOverE1 and PPP configuration, as shown in Figures 5.2-10 and 5.2-11. Figure 5.2-10 Create IP Over E1Confidential and Proprietary Information of ZTE CORPORATION.
  49. 49. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.2-11 Create PPP  Interface configuration when the Abis interface uses FE. See Figures 5.2-6 and 5.2-12. Figure 5.2-12 Create the IPBB Interface to the SDR Abis Interface5.2.4 Configuring a B8200 Site Under the OMCR  Create a logical site and create a rack and a cell on the site, as shown in Figure 5.2-13 and Figure 5.2-14. Figure 5.2-15 shows the created site. Note that it is just a logical site. Thus, no board is displayed on the rack.Confidential and Proprietary Information of ZTE CORPORATION.
  50. 50. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.2-13 Create a SDR Rack on the OMCR Figure 5.2-14 Create a SDR Rack on the OMCRConfidential and Proprietary Information of ZTE CORPORATION.
  51. 51. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.2-15 B8200 Logical Rack on the OMCR  Configure the transceiver, as shown in Figure 5.2-16. Compared to the BTS accessed to the traditional E1, the BTS must be configured with IP information, DSP mark number and port number besides transceiver information and channel information. See Figure 5.2-17. Figure 5.2-16 Create a TransceiverConfidential and Proprietary Information of ZTE CORPORATION.
  52. 52. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.2-17 IP Information of the Transceiver5.3 OMCB Data Configuration [Task Purpose] Configure the SDR physical data according to the planning [Task Preparations] 1. Know the BTS name, site number and site type of each SDR site. 2. Know the physical transmission type (E1/T1 or Ethernet). 3. Know the interface position and module number corresponding to the SDR site on the iBSC. 4. Know the IP address of each SDR BTS, and IP addresses of the iBSC interfaces to the BTSs, and virtual address of the IP Abis interface of the iBSC. 5. Know the planned IP address of each site and the planned frequency of each RRU.5.3.1 Creating A SDR Management NE  Create a GERANT subnetwork, as shown in Figure 5.3-1.Confidential and Proprietary Information of ZTE CORPORATION.
  53. 53. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.3-1 Create a GERAN Subnetwork (1)  Create a BTS Management NE, as shown in Figure 5.3-2. Figure 5.3-2 Create a BTS Management NE5.3.2 Applying for Exclusion Right for the Management NE  Without exclusion right, you cannot create or modify the NE. Figure 5.3-3 shows the method of applying for exclusion right.Confidential and Proprietary Information of ZTE CORPORATION.
  54. 54. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.3-2 Applying for Exclusion Right  When you have applied for exclusion right successfully, the tree node on the network management interface is displayed as a green lock, as shown in Figure 5.3-3. Figure 5.3-4 Exclusion Right Applied Successfully5.3.3 Creating A BTS Configuration Set  Create a BTS configuration set, as shown in Figure 5.3-4. The following physical and radio data are configured in the set.Confidential and Proprietary Information of ZTE CORPORATION.
  55. 55. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.3-5 Create a BTS Configuration Set5.3.4 Physical Configuration  Create BTS ground resource management, as shown in Figure 5.3-6. Figure 5.3-6 Create BTS Ground Resource  Under the ground management resources, create physical configuration, including basic rack (BBU), remote rack (RRU), antenna, BBU, and topology relation between the BBU and the RRU, as shown in Figure 5.3- 7.Confidential and Proprietary Information of ZTE CORPORATION.
  56. 56. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.3-7 Create SDR Physical Configuration on the OMCB5.3.5 Transmission Configuration  In E1/T1 transmission, seven items should be configured at least: E1/T1 Connection Configuration, High Level Data Link Control, Point-to- Point Protocol Configuration, IP Property Configuration, Coupling Configuration, and OMC-B Connection, as shown in Figure 5.3-8.Confidential and Proprietary Information of ZTE CORPORATION.
  57. 57. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.3-8 Transmission Configuration in E1 Transmission  In FE transmission, five items should be configured at least: Ethernet Configuration, Qos Bandwidth Configuration, Global Port Configuration, IP Property Configuration, Coupling Configuration, and OMC-B Connection, as shown in Figure 5.3-9. Figure 5.3-9 Transmission Configuration in FE Transmission  If the planned SDR address and the virtual address of the IP Abis interface of the iBSC are not in the same segment, Static Route Configuration must be added to the IP and Route Management, as shown in Figure 5.3-10.Confidential and Proprietary Information of ZTE CORPORATION.
  58. 58. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.3 -10 Static Route Configuration5.3.6 Clock Configuration  In the time source priority configuration, select the input clock and its priority for the SDR, as shown in Figure 5.3-11. Figure 5.3 Clock Source Priority Configuration5.3.7 Optional Configuration  If dry contacts and other similar are installed, they also must be configured at the foreground. See Figure 5.3-12.Confidential and Proprietary Information of ZTE CORPORATION.
  59. 59. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.3-12 Optional Configuration5.3.8 Radio Configuration  Creat radio information including RF Central Frequency Point, GSM Sector Parameter, GSM RU parameter and GSM Carrier Wave Parameter. Figure 5.3-13 Radio ConfigurationConfidential and Proprietary Information of ZTE CORPORATION.
  60. 60. Introduction to ZXSDR Products Internal Use Only▲5.4 LMT Installation and Data Configuration5.4.1 SDR Logging in to the SDR with the Debugger  Connect the network port of the debugger with the ETH1 interface of the active CC board.  Start the LMT, and log in to the SDR, as shown in the following figure. Figure 5.4-20 LMT Login Interface5.4.2 Configuring the SDR BTS Through the LMT LMT configuration is basically consistent with the OMCB configuration. Except basic property configuration, it also falls into physical, transmission, and radio configurations.5.4.3 Basic Property Configuration  Before this configuration, set some basic properties, including Set Basic Properties, Set Clock Reference Source, BTS Time Properties, as shown in Figure 5.4-2.Confidential and Proprietary Information of ZTE CORPORATION.
  61. 61. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.4-21 Set Basic Properties5.4.4 Physical Configuration  Configure the basic rack 1, the remote rack (RRU), and the topology structure, as shown in Figure 5.4-3. Unlink in the OMCB, antennas are already configured in the RRU. Thus, no antennas are configured here.Confidential and Proprietary Information of ZTE CORPORATION.
  62. 62. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.4-22 Configure SDR Physical Data Using the LMT5.4.5 Transmission Configuration  For E1 access, seven items should be configured: E1/T1 cable, HDLC parameters, PPP parameters, global port parameters, IP parameters, SCTP parameters, and OMCB parameters, as shown in Figure 5.4-4. Figure 5.4-23 Configure SDR Transmission Resource Using the LMT (E1/T1)  For FE access, only five items should be configured: Ethernet parameters, global port parameters, IP parameters, SCTP parameters, and OMCB parameters, as shown in Figure 5.4-5.Confidential and Proprietary Information of ZTE CORPORATION.
  63. 63. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.4-24 Using the LMT to Configure the Transmission Resources of the SDR (FE)  If the planned SDR address and the virtual address of the IP Abis interface of the iBSC virtual address are not in the same network segment, Static Route Parameters also should be configured, as shown in Figure 5.4-6.Confidential and Proprietary Information of ZTE CORPORATION.
  64. 64. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.4-25 Configure Static Route When in Different Segments5.4.6 Radio Configuration  Configure the RF unit center frequency, GSM sector, GSM RU, and GSM carrier, as shown in Figure 5.4-7. Figure 5.4-26 LMT Configures the Radio Data of the SDRConfidential and Proprietary Information of ZTE CORPORATION.
  65. 65. Introduction to ZXSDR Products Internal Use Only▲5.5 Data Synchronization Between the Foreground and theBackground When above OMCR, OMCB, and LMT data are configured correctly, the versions run normally, and the network transmission are normal, you can establish a link between the SDR at the foreground and the OMCB at the background. When the link is establishment, you can synchronize the OMCB configuration data to the SDR at the foreground, or transconfigure the configuration data on the SDR at the foreground to the OMCB at the background.  Synchronize the OMCB data to the SDR at the foreground, as show in Figure 5.5-1. Figure 5.5-1 Synchronize Data from the OMCB to the Foreground  Transconfigure SDR data to the OMCB. In Figure 5.5-1, select BTS Data Configuration Wizard. The interface as show in Figure 5.5-2 is displayed.Confidential and Proprietary Information of ZTE CORPORATION.
  66. 66. Introduction to ZXSDR Products Internal Use Only▲ Figure 5.5-2 Transconfigure Data from the SDR at the Foreground  Synchronize the OMCR radio data to the foreground, as shown in Figure 5.5-3. Figure 5.5-3 Synchronize OMCR Data to the ForegroundConfidential and Proprietary Information of ZTE CORPORATION.
  67. 67. Introduction to ZXSDR Products Internal Use Only▲ Appendix  Abbreviations  SDR Software Defined Radio It indicates the radio in which some or all of the physical layer functions are software defined.  HR Hardware Radio It indicates the radio in which the main functions are achieved through the hardware.  DDT Delay Diversity Transmission It indicates that two transmitters in the double-diversity carrier module send same signals in short delays and form into one virtual transmitter to enhance the downlink signal. In this way, the coverage increases more than 20%.  DPCT Dual Power Combining Transmission It indicates that the two send units in the double-diversity of the BTS realizes coherent combining, that is, the two send unit in the module send same bursts in the same moments and form into a nominal carrier through the combiner, thus obtaining a unlink transmission gain greater than 2 dB and increasing the cell coverage. The four-antenna diversity function is used with DPCT simultaneously to implement the ultra-distance coverage of BTS.  IRC Interference Rejection Combining The IRC diversity of the uplink link can improve the uplink receiving sensitivity of the receiver and enlarge the uplink coverage of the BTS.  Support intelligent power-up/power-down In same cases, the board cannot be monitored or cannot be reset on the hardware, and the system must be in the power-down or power saving mode. In these cases, some boards (DTRU) can be powered down through theConfidential and Proprietary Information of ZTE CORPORATION.
  68. 68. Introduction to ZXSDR Products Internal Use Only▲ board controlled by the system (CMB). For example, the system can power down partial carrier modules in normal power supply according to the decrease of the traffic.  uTCA Micro Telecommunications Computing Architecture. uTCA is the abbreviation of the Micro TCA that is the short form of the advanced Telecom computing architecture (ATCA). As a standard open architecture, the uTCA provides options for communication system design on various components of different handovers, ports, protocols, and functions, system architecture, redundancy and high availability. ATCA is oriented to the application environment with high capacity and high performance, while uTCA is oriented to the low-cost and volume-sensitive application environment with low capacity and performance requirements. uTCA inherits many specifications of ATCA, including basic interconnection topology and management structure.Confidential and Proprietary Information of ZTE CORPORATION.

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