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Zte ZXG10-OB06 Technical Manual

Zte ZXG10-OB06 Technical Manual

Integrated outdoor gsm base station
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ZXG10-OB06
Integrated Outdoor GSM Base Station
Technical Manual
Version 1.0
ZTE CORPORATION
ZTE Plaza, Keji Road South,
Hi-Tech Industrial Park,
Nanshan District, Shenzhen,
P. R. China
518057
Tel: (86) 755 26771900
800-9830-9830
Fax: (86) 755 26772236
URL: http://support.zte.com.cn
E-mail: doc@zte.com.cn

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  • Page 1 ZXG10-OB06 Integrated Outdoor GSM Base Station Technical Manual Version 1.0 ZTE CORPORATION ZTE Plaza, Keji Road South, Hi-Tech Industrial Park, Nanshan District, Shenzhen, P. R. China 518057 Tel: (86) 755 26771900 800-9830-9830 Fax: (86) 755 26772236 URL: http://support.zte.com.cn E-mail: doc@zte.com.cn...

  • Page 2: Revision History

    The contents of this document are protected by copyright laws and international treaties. Any reproduction or distribution of this document or any portion of this document, in any form by any means, without the prior written consent of ZTE CORPORATION is prohibited. Additionally, the contents of this document are protected by contractual confidentiality obligations.
  • Page 3 Please fax to: (86) 755-26772236; or mail to Publications R&D Department, ZTE CORPORATION, ZTE Plaza, A Wing, Keji Road South, Hi-Tech Industrial Park, Shenzhen, P. R. China 518057. Thank you for your cooperation! Document ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual...
  • Page 4 This page is intentionally blank.

  • Page 5: Table Of Contents

    Contents About this Manual ..................ix Purpose of this Manual ................... ix What is in this Manual ..................... x Typographical Conventions..................x Mouse Operation Conventions................. xi Safety Signs......................xi How to Get in Touch ....................xii Customer Support........................xii Documentation Support......................xii Chapter 1..................1 System Architecture...................1 System Introduction ....................1 Standards ..........................3...
  • Page 6 Interface Specifications ..................26 Abis Interface........................26 Um Interface.........................28 Capacity ......................30 Clock ........................30 Reliability ......................31 Chapter 3..................33 Interfaces and Protocols................. 33 Overview ......................33 Interfaces ......................34 Um Interface.........................34 Abis Interface........................35 Inter-Cabinet Cascaded Interface of Same Site...............40 Tower Amplifier System Interfaces..................42 Man-Machine Interface (MMI) ....................42 Protocol Introduction.....................
  • Page 7 Chapter 5..................98 Networking Modes and System Configurations........98 Networking Modes ....................98 Star Networking Mode ......................98 Chain Networking Mode......................99 Tree Networking Mode......................99 System Configuration..................100 Number and Types of Sites....................100 BTS Configuration Principles....................102 Expansion ...........................106 Configuration Examples .......................106 Appendix A ................. 117 Pertinent Standards ................
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  • Page 9: About This Manual

    About this Manual Purpose of this Manual This manual introduces the working principle, functions and technical features of ZXG10-OB06 (V1.0) Base Transceiver Station. It enables the user to have an all-around understanding of the technical features of the ZXG10-OB06 (V1.0).

  • Page 10: What Is In This Manual

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual What is in this Manual This manual includes five chapters: Section Summary Chapter 1, System Introduces the background, the standards followed, major Architecture functions, system features, working principles, and the general structure of both software and hardware of ZXG10- OB06 (V1.0).

  • Page 11: Mouse Operation Conventions

    It may also be used to alert against unsafe practices. Note: Indicates a potentially hazardous situation, which if not avoided, could result in injuries, equipment damage or Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 12: How To Get In Touch

    Customer Support If you have problems, questions, comments, or suggestions regarding your product, contact us by e-mail at support@zte.com.cn. You can also call our customer support center at (86) 755 26771900 and (86) 800- 9830-9830.

  • Page 13: Chapter 1

    ZXG10-OB06 (V1.0). System Introduction System Background ZXG10-OB06 is one of the ZXG10-BTS series of base transceiver stations, and is an integrated outdoor BTS for GSM. A single cabinet supports six carriers at the maximum. In one system, it integrates the following: •...
  • Page 14 1 – Z X G 1 0 - O B 0 6 A I G U R E P P E A R A N C E ZXG10-OB06 is located between BSC and MS in the GSM/GPRS network. It connects to the BSC through Abis interface and to MS through Um interface.

  • Page 15: Standards

    Chapter 1 - System Architecture Figure 2 shows the ZXG10-OB06 position (V.1.0) in a GSM/GPRS Network. 2 – Z X G 1 0 - O B 0 6 P G S M / G P R S N I G U R E...

  • Page 16: System Features

    ETSI 301 489-8 EMC specification • R&TTE Directive 1995/5/EC System Features The ZXG10-OB06 (V1.0) is a compact outdoor BTS with a high capacity. A single cabinet can support up to six carriers. The main features of ZXG10-OB06 are as follows: •...
  • Page 17 GSM900 and EGSM900 systems and 40 W for GSM1800, GSM1900 and GSM850 systems. • Support six TRXs per ZXG10-OB06 BTS for 40 W configuration for the GMSK mode and 50 W for the 8PSK mode. It also supports S6/6/6 extension of 18 TRXs at the same site.

  • Page 18: System Working Principle

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual • Support synchronous, asynchronous, pseudo- synchronous and pre- synchronous handovers. • Provide functions as protection and electromagnetic filtration. The power system features the following: • AC input and DC output (over-voltage/under-voltage) protection It keeps DC output until the temperature is more than -20°C and...
  • Page 19 Chapter 1 - System Architecture The working principle of the system is as follows: • Downlink: The ZXG10-OB06 receives data from BSC, including voice and signaling data. ii. The transmission unit sends signaling data to the operation & maintenance unit for processing.

  • Page 20: Hardware Structure

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Hardware Structure The ZXG10-OB06 (V1.0) hardware consists of the following units: • Control and Maintenance Module (CMM) • Transceiver Module (TRM) • Antenna Equipment Module (AEM) • Backplane Transmission Module (BTM) •...
  • Page 21 Chapter 1 - System Architecture 5. Power Module 8. Emergency light 6. Transmission subrack 9. Battery box 7. PDM breaker Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 22: Control & Maintenance Module (Cmm)

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Figure 5 shows the hardware structure of the ZXG10-OB06. 5 – H Z X G 1 0 - O B 0 6 ( V 1 . 0 ) I G U R E...

  • Page 23: Antenna Equipment Module (Aem)

    PAU amplifies the power of the radio carrier to provide the BS equipment with sufficient transmission power. • In GSM900 or EGSM900 bands, ZXG10-OB06 features a transceiver unit with an output power of 80 W. This unit consists of two modules: •...
  • Page 24 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual • VSWR detection circuit • Low Noise Amplifier (LNA) (including splitter) Figure 6 shows the working principles of CDU. 6 – P C D U I G U R E R I N C I P L E S O F...

  • Page 25: Backplane Transmission Module (Btm)

    At the same time, it provides interfaces for inputting and outputting external signals. Transmission Management Module (TMM) TMM can be a product manufactured by a third party. In ZXG10-OB06, there is a standard 19-inch 3U-high shelf for accommodation transmission devices such as SDH and microwave.

  • Page 26: Power Module (Pwm)

    • To maintain the software • To collect OB06 information • To perform OB06 local tests The internal software of ZXG10-OB06 (V1.0) is composed of four parts: • Control & Maintenance Module (CMM) • Frame Unit Controller (FUC) • Channel Processing Module (CHP) •...
  • Page 27 O D U L E S O F CMM software module FUC software module CHP software module CIP software module Control & Maintenance Module (CMM) The CMM of ZXG10-OB06 (V1.0) provides the following functions: • Status management • Configuration management •...
  • Page 28 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual The five layers, from bottom-to-top are as follows: H a r d w ar e The physical platform on which the CMM software runs. B o a r d - l e v e l S u p p o r t P a c k a g e ( B S P ) BSP initializes CMM boards and provides drivers for the relevant parts of the equipment.
  • Page 29 FUC software module is located in the TPU of the TRM module. It processes radio signaling over every radio carrier and signaling on BSC interface and manages all channels. Its major functions are as follows: Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 30 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual • Processes and converts GSM signaling protocols, including the following: • Layer-2 protocol LAPD with BSC • Layer-2 protocol HDLC with CMM • Layer-2 protocol LAPDm with Um interface • Layer-3 radio resources management protocol of GSM •...

  • Page 31: Chapter 2

    This chapter introduces the technical specifications of the modules and components of ZXG10-OB06 (V1.0). Physical Characteristics Table 4 lists ZXG10-OB06 (V1.0) physical characteristics. 4 – Z X G 1 0 - O B 0 6 ( V 1 . 0 ) P A B L E...

  • Page 32: Voltage And Power

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Voltage and Power Table 5 shows ZXG10-OB06 (V1.0) voltage and power characteristics. 5 – Z X G 1 0 - O B 0 6 ( V 1 . 0 ) V...

  • Page 33: Requirement For Cleanliness

    0.15 0.01 30.0 0.01 0.005 ZXG10-OB06 can bear rain, water, salt fog, dust and provides the anti- theft function. The IP protection level reaches IP55. Lightning Protection and Grounding ZXG10-OB06 (V1.0) features a lightning-protection capability of B+C level. Built-in induction-free lightning protector in the AC input part of ZXG10- OB06 is of level B+C.

  • Page 34: Interface Specifications

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Interface Specifications Abis Interface Abis interface adopts standard interface meets requirements specified by ITU-T G.703 and ITU-T G.704. Table 8 shows the basics of Abis interface. 8 – A A B L E...

  • Page 35: Um Interface

    Interference protection ratio of the second adjacent channel: ≥ -43 Wir e le ss R F Modul ati on Mode ZXG10-OB06 possess MCS-1 ~ MCS-9 modulation and coding modes to support EDGE services. MCS-1 ~ MCS-4 retains the GMSK modulation mode, while MCS-5 ~ MCS-9 uses the 8PSK modulation mode.
  • Page 36 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual • Inter-modulation attenuation of the transmitter • Inter-modulation attenuation in BSS • Transmitted adjacent channel power • Spurious emission of the transmitter R ec ei v er P er for mance The following characteristics describe the receiver performance: •...

  • Page 37: Capacity

    Spurious emission: The emission of frequencies, except that of RF channel of receiver and adjacent frequencies. Capacity A single cabinet of ZXG10-OB06 can be configured with six carriers at maximum. One site supports three cabinets and 18 carriers at maximum. Clock...
  • Page 38 This page is intentionally blank. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 39: Chapter 3

    B-interface (cascaded interface between OB06 BTSs) • Tower amplification and local O&M interfaces Figure 10 shows the ZXG10-OB06 external interfaces positions. 1 0 – Z X G 1 0 - O B 0 6 E I G U R E...

  • Page 40: Interfaces

    A set of standards is set up. This set of specifications about signal transmission over radio channel is the Um interface. The Um interface is designed with a hierarchical model. ZXG10-OB06 implements circuit service protocol. Figure 11 shows the hierarchical model of circuit service protocol.

  • Page 41: Abis Interface

    PCM 2 MHz E1 signals, transmitted physically in one of the following ways: • Over 75 Ω coaxial cable in unbalanced mode • Over 120 Ω cable in balanced mode • Through digital microwaves, fiber transmission (SDH/PDH) or satellite link. Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 42 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Protocols on Abis interface are hierarchical. Figure 12 shows the circuit service protocol hierarchy. It is transparent for the packet signaling. 1 2 – C I G U R E I R C U I T...
  • Page 43 (TS) of the O&M signaling on the Abis interface. For detailed description of ID, refer to ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station - Hardware Manual. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 44: Inter-Cabinet Cascaded Interface Of Same Site

    EAM signaling. Inter-Cabinet Cascaded Interface of Same Site ZXG10-OB06 supports inter-cabinet star connection at the same site (one site supports three cabinets at most). The data interface between cabinets also employs the standard PCM 2 MHz E1 signal to transfer service, TRM signaling, inter-cabinet O&M signaling and Frame Number (FN).
  • Page 45 In the uplink direction, CMM compresses the O&M TSs with the next cabinet to send to the upper-level CMM. Thus, the master rack compresses the O&M messages of three cabinets into one O&M message to report to BSC. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 46: Tower Amplifier System Interfaces

    In general, these are the interfaces for providing the DC feed and alarm monitoring. The alarm is detected by the DC current. ZXG10-OB06 provides +12 V power supply and up to 300 mA current for the tower amplifier system through the power interface.
  • Page 47 Notifying the management entity of the un-recoverable error • Traffic control ZXG10-OB06 (V1.0) implements LAPD in RSL LAPD module. Figure 15 shows the position of LAPD module in RSL. 1 5 – L A P D M I G U R E...
  • Page 48 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual • I-frame multi-frame operation • UI-frame operation I - f r a m e M u l t i - f r a m e O p e r a t i o n The L3 message is sent in the information frame mode, which requires the confirmation from the receiver.

  • Page 49: Lapdm Protocol

    LAPDm Protocol In GSM, LAPDm is a data link protocol for signaling transmission between MS and ZXG10-OB06 (V1.0). It uses the Dm channel to transmit messages for entities of Layer 3 through the radio interface. LAPDm is based on LAPD, with some simplification and modification.
  • Page 50 • Supports burst access mode after RACH channel access is instantly assigned. In ZXG10-OB06 (V1.0), LAPDm is implemented in LAPDm module of RSL. Figure 18 shows the position of LAPDm module in RSL. 1 8 – L A P D...
  • Page 51 The L3 message is sent in the no-serial-number frame mode. The receiver is not required to send the received confirmation after receiving the UI- frame. This operation mode does not provide flow control or error recovery mechanism. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 52: Rr/Mm/Cm Protocol

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Figure 20 shows the LAPDm UI-frame structure. 2 0 – L A P D U I - I G U R E F R A M E T R U C T U R E...
  • Page 53 • Non-transparent messages: These are the messages between ZXG10- OB06 (V1.0) and BSC. ZXG10-OB06 (V1.0) processes these according to the specific message content. Message Transparency on Um Interface The signaling on Um interface includes all messages of RR, MM and CM.
  • Page 54 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Figure 22 shows the structure of L3 on the Abis interface. 2 2 – L 3 M I G U R E E S S A G E T R U C T U R E O N...

  • Page 55: Chapter 4

    This chapter explains the functions of ZXG10-OB06 (V1.0), including RF, baseband processing, signaling processing, O&M and Ultra-distance coverage. Overview The ZXG10-OB06 (V1.0) is managed and controlled by BSC. It works with BSC to achieve the following functions: • RF function: Implementing the radio connections between MS and BTS •...

  • Page 56: Major Rf Functions

    High Receiving Sensitivity The static receiving sensitivity of ZXG10-OB06 (V1.0) reaches up to -112 dBm. The high sensitivity guarantees the uplink channel performance of OB06. It is one of the prerequisites for a wide coverage of ZXG10-OB06 (V1.0). Flexible Configuration ZXG10-OB06 (V1.0) supports up to six carriers per site in omni-directional...

  • Page 57: Frequency Hopping

    Chapter 4 - System Functions Frequency Hopping Frequency hopping is another important measure to enhance ZXG10-OB06 (V1.0) performance. It not only improves the anti-fading capability in the downlink channels, but also strengthens the communication security. The ZXG10-OB06 supports two working modes: •...

  • Page 58: Signaling Processing

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Signaling Processing ZXG10-OB06 (V1.0) signaling processing implements the following two functions: • Interconnection between MS and BSS/NSS on Um interface layer • Management of some radio resources under the control of BSC Specifically, OB06 signaling processing functions are the following: •...
  • Page 59 S T A B L I S H M E N T The process is as follows: 1. ZXG10-OB06 (V1.0) gives the BSC an indication that one multi-frame- mode L2 link has been established on the wireless path. 2. During the paging, GSM 04.08 message PAGING RESPONSE contained in DL_EST_IND sent to FURRM module.
  • Page 60 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Figure 24 shows link establishment procedure originated by BSC. 2 4 – B S C - I G U R E O R I G I N A T E D...
  • Page 61 Figure 27 shows the link release procedure requested by BSC. 2 7 – B S C - I G U R E R E Q U E S T E D I N K E L E A S E Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 62 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Figure 28 shows the Link release failure. 2 8 – L I G U R E I N K E L E A S E A I L U R E The BSC requests the release of one multi-frame-mode link layer connection (SAPI=3) on wireless path.
  • Page 63 A C K N O W L E D G M E N T O D E requests send transparent message non- acknowledgment mode. UNIT DATA REQ message contains the complete non-acknowledgment mode L3 transparent message. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 64: Dedicated Channel Management Function

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Figure 32 shows the procedure of transmitting an L3 transparent message from MS. 3 2 – R L 3 T I G U R E E C E I V I N G...
  • Page 65 C T I V A T I O N HPIMan LAPD OAMM LAPDm FURRM (CHAN ACTIV) DL_DATA_IND(CHAN ACTIV) MPH_RRCmdTo CHP (CHP CHAN ACTIV) M PH_CHPIndToRR (CHP CHAN ACTIV RESPONSE(ACK) Dm_PH_CONN_IND (if chan activated) DL_DATA_REQ (CHAN ACTIV ACK) (CHAN ACTIV ACK) Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 66 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Figure 34 shows a channel activation failure. 3 4 – U I G U R E N S U C C E S S F U L H A N N E L...
  • Page 67 Handover Access message that LAPDm sent. The (RR) HANDOVER COMMAND message is sent on the active SDCCH. This transparent message contains the information about new channel: • New channel characteristics • Power command Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 68 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual • Physical channel establish procedure indication • Handover reference • Time lead (optional) • Encryption mode setting (optional) It also controls the connection of MS if it is required to connect in synchronous activation mode.
  • Page 69 Set Timer MPH_CHPIndToRR (CHP SYNCHRONIZED) kill Timer DL_DATA_REQ (CONN FAIL IND) (CONN FAIL IND) DL_ DATA_IND DATA REQ (CHAN DL_DATA_REQ (DATA REQ (CHAN MODE M ODE MODIFY (CHAN MODE MODIFY ACK)) MODIFY ACK) ACK) Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 70 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Figure 37 shows the mode change failure. 3 7 – F I G U R E A I L U R E O F O D E H A N G E...
  • Page 71 ASSIGNMENT COMPLETE message to BSC. If MS cannot implement the connection allocation for some reasons, it sends the (RR) ASSIGNMENT FAILURE message on the original channel. The FURRM transfers transparently the (RR) ASSIGNMENT COMMAND, (RR) ASSIGNMENT COMPLETE (RR) ASSIGNMENT FAILURE messages. Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 72 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Encryption Figure 39 shows the encryption. 3 9 – E I G U R E N C R Y P T I O N To set an encryption mode for the network means two things: •...
  • Page 73 The BSC releases the SACCH in OB06 according to the (RR) CHANNEL RELEASE procedure. It sends DEACT SACCH message to OB06, to stop transmitting downlink SACCH frame. The FURRM module sends the related information in the DEACT SACCH message to the CHP for processing. Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 74 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual • Wireless channel release: The BSC releases the wireless link, which is not in use any longer. Figure 41 shows the wireless channel release procedure. 4 1 – W I G U R E...
  • Page 75 The OB06 pre-processes the MS measurement report. It sends the report together with the OB06 measurement result to BSC, through the PREPROC MEAS RES message. • Power control: Power control is of two kinds: • MS Power control Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 76 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Figure 44 shows the MS power control. 4 4 – M S P I G U R E O W E R O N T R O L HPIMan OAMM LAPDm...
  • Page 77 It may send physical environment information to a new TRX (which may be in another cell). OB06 return the PHY CONTEXT CONF message to BSC containing the MS/BTS power and TA. OB06 does not process the physical environment information temporarily. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 78: Common Channel Management Function

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual • SACCH fill-in information change: Figure 47 shows the procedure of modifying the SACCH fill-in information. 4 7 – S AC C H F I G U R E I L L...
  • Page 79 The immediate assignment message is transmitted in downlink CCCH (AGCH) channel. The immediate assignment message from the network side can be amongst the following: • (RR) IMMEDIATE ASSIGNMENT • (RR) IMMEDIATE ASSIGNMENT EXTENDED • (RR) IMMEDIATE ASSIGNMENT REJECT Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 80 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual On Abis interface, it is contained in IMM ASS CMD message. It contains complete ‘immediate assignment’ message and where the ‘paging mode’ unit is set as ‘unchanged’. On receiving this message, FURRM sends it to PAGCHMan sub-module of PAGCHM module.
  • Page 81 With the SMS BROADCAST CMD message, the BSC can set OB06 broadcast to the default mode. When there are no other messages to broadcast in this mode, the OB06 sends a default message. Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 82 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual B r o a d c a s t I n f o r m a t i o n 1 C h a n g e P r o c e d u r e Figure 54 shows the broadcast information 1 change procedure.

  • Page 83: Trx Management Function

    TRX. The overload cause may be CCCH overload, ACCH overload or processor overload. • Error report procedure: With this procedure, the OB06 reports BSC about the detected downlink message error that cannot be reported with other procedures. Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 84 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Radio Resource Indi cation Figure 56 shows the radio resource indication. 5 6 – R I G U R E A D I O E S O U R C E...
  • Page 85 Error with one link layer. In other words, the I-frame is repeated for N200 times but is not acknowledged. • The SABM or DISC frame is repeated for N200 times but is not acknowledged. • The SABM frame received in the multiframe establishment status. Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 86 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual C o n n e c t i o n F a i l u r e Figure 59 shows the connection failure procedure. 5 9 – C I G U R E...

  • Page 87: O&M

    TRM board FUC software that CMM manages. After receiving the configuration message from the CMM software, the FUC software configures the board attributes. At the same time, it notifies CMM software with the successful configuration message, and configures the CHP and CIP. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 88: Alarm And Status Reporting

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Alarm and Status Reporting The ZXG10-OB06 (V1.0) supports reporting the alarms and statuses to BSC. Figure 61 shows the alarm reporting process. 6 1 – A I G U R E...

  • Page 89: Online Software Loading

    Chapter 4 - System Functions Online Software Loading It supports the ZXG10-OB06 (V1.0) software online loading by BSC. Figure 62 shows the software loading process. 6 2 – S I G U R E O F T W A R E...
  • Page 90 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual propagation environment, it is difficult to offer coverage with a radius greater than 35 km. However, in some special propagation conditions, it is possible to cover a radius greater than 35 km. The conditions may include low propagation loss at areas like coasts, deserts and grasslands.
  • Page 91 120 km, and the maximum time advance is 219. The actual coverage radius may be less than the theoretical value. This difference is because; the actual propagation loss of GSM900 is high, and the balance between upper and lower links. Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 92 This page is intentionally blank. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 93: Chapter 5

    This chapter introduces networking modes, system configurations, and networking examples of ZXG10-OB06 (V1.0). Networking Modes The ZXG10-OB06 (V1.0) connects to BSC through the Abis interface. It supports networking modes of star, chain and tree. Star Networking Mode Figure 66 shows the star networking mode of the ZXG10-OB06 (V1.0).

  • Page 94: Chain Networking Mode

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual intermediate links along the path, the reliability of transmission is higher. This networking mode is deployed in urban areas with the dense population. Chain Networking Mode Figure 67 shows the chain networking mode of the ZXG10 OB06 (V1.0).

  • Page 95: System Configuration

    TRXs. In general, a base station in the second kind of network is called a site. The base station with an omni-directional antenna covers only one cell, while the base station with a directional antenna covers three cells. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 96: Bts Configuration Principles

    ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual T yp es o f Si te s There are two types of sites: • O-type site: It is an omni-directional cell, that is, all the carriers of the site serve the O-type cell.
  • Page 97 For 40 W configuration, a single cabinet of OB06 can be configured with a maximum of six TRMs. For 80 W configuration, a single cabinet of OB06 can be configured with a maximum of three TRMs. Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 98 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Figure 72 shows the ZXG10-OB06 (V1.0) functional modules installation positions in the cabinet. 7 2 – 8 0 W S Z X G 1 0 - O B 0 6 ( V 1 . 0 ) C...
  • Page 99 Chapter 5 - Networking Modes and System Configurations remain inside one ZXG10-OB06 (V1.0) cabinet to minimize the length of the cabinet-crossing RF connection cable and reduce the loss over cables. Table 13 shows the antenna feeder interface frame configuration. 1 3 – A...

  • Page 100: Expansion

    One to three cabinets can be configured in a site to enlarge subscriber quantity. It is recommended to configure cabinets as few as possible. In case of 40 W configuration, the ZXG10-OB06 (V1.0) can be configured as S6/6/6 at most. In case of 80 W configuration, the ZXG10-OB06 (V1.0) can be configured as S3/3/3 at most.
  • Page 101 T X 1 T X 2 R X 1 R X 2 R X 3 R X 4 R X 1 R X 2 R X 3 R X 4 R X D T R M 1 Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 102 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual In general, the O2-type site configuration is with two CDUs and two omni- directional receiving antennas. Figure 75 shows the configuration of 40 W and 80 W O2-type sites, and Figure 76 shows the logical connection relationship.
  • Page 103 O N F I G U R A T I O N Air Duct Air Duct AEM Fan Subrack AEM Fan Subrack RTU Fan Subrack RTU Fan Subrack Battery Box Battery Box Power Module Power Module Transmission Transmission Subrack Subrack Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 104 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual 7 8 – L I G U R E O G I C A L O N N E C T I O N E L A T I O N S H I P B E T W E E N...
  • Page 105 TX/ RX TX/ RX RX RXD RX RXD RX RXD RX RXD TRM1 TRM2 TRM3 TRM4 In general, the O6-type site configuration is with two CDUs, two CEUs and omni-directional receiving antennas. Figure shows Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 106 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual configuration of O6-type sites, and Figure 82 shows the logical connection relationship. 8 1 – 4 0 W O 6 - I G U R E T Y P E I T E S...
  • Page 107 RX 3 RX 4 TX 3 TX 4 TX 3 TX 4 TX RX RXD TX RX RXD TX RX RXD TX RX RXD TX RXRXD TX RX RXD TRM1 TRM2 TRM3 TRM4 TRM5 TRM6 Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 108 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual C on fi gu r atio n E x am ples of the S-ty pe Si te The S-type site may serve either two-sector cells or three-sector cells. Such sites often employees the directional antenna.

  • Page 109: Pertinent Standards

    Access Control (RLC/MAC) protocol • GSM05.02 Multiplexing and multiple access on the radio path • GSM05.08 Radio subsystem link control • GSM08.58 Base Station Controller - Base Transceiver Station (BSC - BTS) interface Layer 3 specification Confidential and Proprietary Information of ZTE CORPORATION...
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  • Page 111: Abbreviations

    Base Station Controller BSIC Base Station Identify Code Board-level Support Package Base Station Subsystem Backplane Transmission Module Base Transceiver Station Carrier to Interference Ratio CBCH Cell Broadcast Channel Call Control CCCH Calling Control Channel Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 112 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Abbreviation Full Name Common Channel Combiner Distribution Unit CELL Cellular CELP Code Excited Linear Prediction Coding Combiner Extension Unit Channel Processing Module Channel Processor Carrier Interface Processor Clock Connection Management Controller & Maintenance Module...
  • Page 113 Link Access Procedure ‘Dm’ (mobile ‘D’) Channel Local Maintenance Terminal Local Maintenance Unit Low Noise Amplifier Medium Access Control Modulation Coding Scheme Mobility Management Man-Machine Interface Mobile Station Mobile Switch Center Mobile Switch System Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 114 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Abbreviation Full Name MTBF Mean Time Between Failures MTTR Mean Time To Repair O&M Operation & Maintenance Operation and Maintenance Center Operation Support Module Power Amplifier Unit Pulse Code Modulation Power Distribution Module...
  • Page 115 Appendix B - Abbreviations Abbreviation Full Name Terminal Equipment Identifier Transaction Identifier Transmission Management Module Transceiver Process Unit Transceiver Module Transceivers Time Slot Transmitter Um Interface Visitor Location Register VSWR Voltage Standing Waver Ratio Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 116 This page is intentionally blank. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 117: Figures

    Figure 1 – ZXG10-OB06 Appearance .............. 2 Figure 2 – ZXG10-OB06 Position in GSM/GPRS Network........3 Figure 3 – Working Principle of ZXG10-OB06 (V1.0) ......... 8 Figure 4 – Layout of ZXG10-OB06 System ............9 Figure 5 – Hardware Structure of ZXG10-OB06 (V1.0)........11 Figure 6 –...
  • Page 118 Figure 69 – Cell Schematic Diagram............100 Figure 70 – Types of Sites ................. 102 Figure 71 – 40 W Standard Fully Configured ZXG10-OB06 (v1.0) Carrier Frame Board Layout ................... 103 Figure 72 – 80 W Standard Fully-Configured ZXG10-OB06 (V1.0) Carrier Frame Board Layout ...................

  • Page 119: Tables

    Table 3 – Safety Signs .................xi Table 4 – ZXG10-OB06 (V1.0) Physical Characteristics ........23 Table 5 – ZXG10-OB06 (V1.0) Voltage and Power Characteristics......24 Table 6 – ZXG10-OB06 (V1.0) Environmental Characteristics ......24 Table 7 – Limit to Invasion of Detrimental Gases ..........25 Table 8 –...
  • Page 120 This page is intentionally blank. Confidential and Proprietary Information of ZTE CORPORATION...

  • Page 121: Index

    CIPH MOD COM to OB06 ....87 Baseband processing ....67 CIPH MODE CMD....87, 88 BCCH INFO ........99 CIPHER MODE COMMAND.....87 Bearing capacity ......37 Cleanliness.........38 B-interface.........46 Clock.........23 Block and spurious response Clock Specifications .....44 suppression ......43 CMComm ........32 Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 122 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Color.........36 ERROR IND ......76, 103 Combiner......25, 26, 27 ERROR REPORT ..73, 88, 89, 104 Combiner Distribution Unit (CDU) ..25 FLASH memory......107 Combiner Extension Unit (CEU) ..27 Flow control ..57, 58, 59, 61, 62 Common channel ....
  • Page 123 SMS BROADCAST CMD ....98 Power Distribution Module (PDM)...28 SMS BROADCAST REQ ....98 Power Module (PWM) ..... 21, 28 Software Architecture ....28 Prerequisites ......68 Software design ......17 Pre-synchronous handover ...18 Software loading initialization ..107 Confidential and Proprietary Information of ZTE CORPORATION...
  • Page 124 ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual Software upgrade .......18 Tower amplifier....18, 55, 68 Splitter ........ 25, 27 Transceiver (TRX) 65, 66, 69, 70, 78, Spurious emission .......43 80, 81, 85, 87, 88, 89, 90, 92, 93, Standards ........15 94, 95, 101, 102, 109, 119, 131 Static referential sensitivity level ...42...

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