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User Manual
iSiteC BTS3601C CDMA Base Station

System Description

Chapter 3 System Function

3-11

3.4 Radio Resource Management

BTS radio resource management functions meet the requirements of TIA/EIA IS-97-D

protocol.

3.4.1 Power Control

CDMA system is a self-interferenc system, in which every subscriber is an

interference source to other subscribers. If it is possible to ensure that every MS

transmits the minimum power it needs, the whole system capacity can be the largest.

Therefore, power control directly affects the system capacity and the service quality.

I. Purpose

Power control is to

Ensure conversation quality, meanwhile restrict the transmitting power on the

forward and reverse links, thus minimizing the system interference.

Overcome the far-near effect caused by the freely distributed mobile stations, so

the signals of mobile stations whose distances to the BTS are different can reach

the BTS with the same power.

Realize the system soft capacity control.

Prolong MS battery life.

Minimize MS radiation to the human body.

II. Types

Power control can be divided into forward power control and reverse power control.

The forward power control is used to control BTS’s transmit power, while the reverse

power control aims to control MS’s transmit power.

Forward power control

Forward power control can be implemented with various methods, whose applications

are subject to the MS protocol version and the system parameters.

Power control based on Power Measurement Report Message (PMRM)

In PMRM-based power control, the MS determines the method and frequency of

reporting PMRM in accordance with the received control message in the system

parameter message.

Power control based on Erasure Indicator Bit (EIB)

In EIB power control, the MS detects the forward frame quality, and feeds back the

information to the BTS via EIB. The BTS will adjust the transmit power according to

EIB information.

Quick forward power control

Содержание iSiteC BTS3601C-800

Страница 1: ...4 2 Abis Interface 1 11 1 4 3 Other Interface 1 15 1 5 Reliability Design 1 16 1 5 1 Hardware Reliability Design 1 16 1 5 2 Software Reliability Design 1 18 Chapter 2 System Architecture 2 1 2 1 Overview 2 1 2 1 1 Appearance 2 1 2 1 2 Functional Structure 2 2 2 2 MBPM 2 2 2 2 1 Structure and Principle 2 3 2 2 2 External Interface 2 7 2 2 3 Key Index 2 8 2 3 MTRM 2 8 2 3 1 Structure and Principle 2...

Страница 2: ...nnel Support 3 13 3 4 4 Diversity Receiving 3 19 3 4 5 Cell Breath 3 19 3 5 Operation and Maintenance 3 19 3 5 1 Loading Management 3 19 3 5 2 Configuration Management 3 20 3 5 3 Equipment Management 3 24 3 5 4 Status Management 3 26 3 5 5 Tracing Management 3 28 3 5 6 Test Management 3 29 3 6 Lightning Protection 3 30 3 6 1 Lightning Protection for Power Supply 3 30 3 6 2 Lightning Protection for...

Страница 3: ...C 2 Transportation Environment C 2 C 3 Operation Environment C 4 Appendix D Electromagnetic Radiation D 1 D 1 Introduction D 1 D 2 MPE D 1 D 3 Estimation of Exposure to Electromagnetic Field D 3 D 4 Calculation of Safe Distance D 3 D 5 Location of BTS Antenna D 4 D 5 1 Exclusion Zone D 4 D 5 2 Guidelines on Selecting Antenna Location D 4 Appendix E Standard Compliance E 1 E 1 General Technical Spe...

Страница 4: ...BTS BTS3601C 1 1 1 Network Solution of cdma2000 1X System The cdma2000 1X mobile communication system comprises the Base Station Subsystem BSS and the Core Network CN The BSS comprises the Base Transceiver Station Base Station Controller BSC and Packet Control Function PCF which is usually integrated with BSC The CN comprises the packet domain network and circuit domain network The equipment of pa...

Страница 5: ...s receives radio signals so as to realize the communication between the radio network system and the Mobile Station MS l cBTS3612 cBTS3612 is an indoor BTS equipment The maximum capacity of single cabinet contains 12 sector carriers Same with BTS3601C it also transmits receives radio signals to accomplish the communication between the radio network system and the MS l ODU3601C ODU3601C is a single...

Страница 6: ...ystem Feature BTS3601C is a highly integrated product which can satisfy customer s different demands for capacity configuration installation power supply transmission and services It is a typical All In One BTS with the following features I Convenient operation and maintenance l It provides remote centralized maintenance and alarm reporting real time status query on line board test and system faul...

Страница 7: ...y If the BTS3601C is equipped with a 40AH storage battery it can keep working normally for 1 hour after the AC power is broken off then the power amplification module will be switched off and the BTS can maintain transmission for another 8 hours V Easy installation Featuring small size light weight and mains supply BTS3601C does not require an equipment room or air conditioner It neither requires ...

Страница 8: ...e performance indices refer to the technical parameters of its transceiver and the reliability indices of the whole system 1 3 1 Engineering Index Power supply 220V 150 300V AC Power consumption 350W In normal temperature while the heating plate is not working 700W In low temperature while the heating plate is working Weight 45kg Operation environment Temperature 40âC 55âC Relative humidity 5 100 ...

Страница 9: ... l 450MHz band Working frequency 460 470MHz Channelbandwidth 1 23MHz Channelprecision 25kHz Frequency tolerance 0 05ppm Transmit power 20W the maximum value measured at the feeder port of the cabinet l 800MHz band Frequency coverage 869Ã894MHz Channelbandwidth 1 23MHz Channel step length 30kHz Frequency tolerance 0 05ppm Transmit power 20W the maximum value measured at the feeder port of the cabin...

Страница 10: ...ean Time To Repair MTTR 1 hour Availability m99 999 Note Reliability refers to the product capability of performing specified functions under the specified conditions and in specified time Mean Time Between Failures MTBF applicable to recoverable systems Mean Time To Repair MTTR including the time of fault checking isolation unit replacement and recovery Availability A a comprehensive index to mea...

Страница 11: ...tem external synchronization interface When GPS GLONASS is not available and there is other clock synchronization equipment the clock synchronization signals of the equipment can be output to the external synchronization interface of BTS3601C system l BTS test interface Interface for BTS test providing such signals as 10MHz and 2s signal 1 4 1 Um Interface I Overview In Public Land Mobile Network ...

Страница 12: ...mance features l Service features II Um interface protocol model Um interface protocol stack is in 3 layers as shown in Figure 1 3 Figure 1 3 Um interface layered structure Layer 1 is the physical layer that is the bottom layer It includes various physical channels and provides a basic radio channel for the transmission of higher layer information Layer 2 is the data link layer including Medium Ac...

Страница 13: ...tiple Radio Configurations RCs Different RCs support different traffic channel data rates For detailed introduction please refer to Section 3 4 3 Radio Configuration and Channel Support IV Data link layer Data link layer at Um interface includes two sublayers MAC and LAC The purpose of introducing MAC and LAC is to l Support higher level services signaling voice packet data and circuit data l Supp...

Страница 14: ...ary Mobile Subscriber Identity TMSI re allocation 3 Connection management It is used to setup maintain and terminate calls 1 4 2 Abis Interface I Overview Abis interface is defined as the interface between BSC and BTS the two functional entities in the Base Station Subsystem BSS It is the interface defined for BTS accessing BSC via the terrestrial link 1 Structure of Abis interface Abis interface ...

Страница 15: ...election Distribution Unit OMU Operation and Maintenance Unit MC Main Control unit Figure 1 4 Composition of Abis interface Note The CFMR CDMA radio frame process FP MAC RLC board board of BSC carrys out the SDU function and the CSPU CDMA Signal Process Unit board of BSC carrys out the SPU function the MBPB board of BTS3601C carrys out the MC CEs and OMU fouctions 2 Protocol stack of Abis interfac...

Страница 16: ...so borne by a PVC connecting the Operation and Maintenance Unit OMU of BTS and BSC The BSC forwards the signaling to OMC transparently and does not process any O M signaling Adaptation of Abis traffic is performed based on AAL2 At Abis interface several PVCs are used to connect the channel processing unit of BTS and SDU of BSC for BTS to transmit the uplink data received from the air interface to ...

Страница 17: ...A B and cdma2000 1X including IS95 FCH IS95 SCCH IS2000 FCH IS2000 DCCH and IS2000 SCH Each radio channel is allocated with one AAL2 link on Abis interface to bear user traffic data Caution For softer handoff only one AAL2 link is allocated on Abis interface 4 Traffic channel bearing function BTS needs to process Abis interface frame protocol It transmits the data received from the reverse traffic...

Страница 18: ...refer to the introduction to Abis interface OML interface is used for OMC to perform operation and maintenance to BTS It is defined by equipment manufacturers On Abis interface it is a transparent path III LMF interface LMF interface is the interface between BTS and Local Maintenance Function LMF entity Its interface protocol stack is shown as below IV System synchronization interface System synch...

Страница 19: ...IS 97D CDMA Base Station Minimum Performance Standard l Huawei product reliability design index and related technical specifications With various measures taken the design of boards is in strict accordance with the requirement of above standards pertaining to reliability 1 5 1 Hardware Reliability Design I De rating design To improve system reliability and prolong the service life of components co...

Страница 20: ...n record and output various fault information Common software and hardware faults can be corrected automatically The hardware fault detection functions include fault locating isolating and automatic switchover The maintenance engineers can identify the faulty boards easily wi th the help of the maintenance console The BTS3601C system also supports the reloading of configuration data files and boar...

Страница 21: ...ightning Protection 1 5 2 Software Reliability Design Software reliability mainly includes protection performance and fault tolerance capability I Protection performance The key to improve software reliability is to reduce software defects Software reliability of BTS3601C is ensured through the quality control in the whole process from system requirement analysis system design to system test Start...

Страница 22: ...ftware fault occurs That is the system has the self healing capability The fault tolerance of BTS3601 software is represented in the following aspects l All boards work on a real time operating system of high reliability l If software loading fails the system can return to the version that was successfully loaded last time l Important operations are recorded in log files l Different authority leve...

Страница 23: ...p CM Service Req Assignment Complete MSC Assignment Req ACH PCH TCH PCH TCH TCH TCH TCH TCH TCH 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 MS BTS BSC Origination Msg Abis ACH Msg Transfer ORM Abis PCH Msg Transfer Base Ack Base Ack Order Abis BTS Setup Abis Connect Abis Connect Ack Abis BTS Setup Ack Abis IS2000 FCH Fwd Null data Null Traffic Data Abis IS2000 FCH Rvs Idle data Abis PCH Msg Transfer...

Страница 24: ...ng channel 11 MS begins to send traffic channel preamble on the assigned reverse traffic channel After BTS captures the preamble it sends traffic channel preamble to BSC via Abis IS2000 FCH Rvs message 12 After BSC receives traffic channel preamble from MS BSC sends BS Ack Order to BTS via Abis IS2000 FCH Fwd message BTS sends BS Ack Order to MS on the forward traffic channel 13 After MS receives ...

Страница 25: ...000FCH Fwd BaseAck Base Ack Order Idle TCH Data Abis IS2000FCH Rvs Idle Data MS Ack Order Abis IS2000FCH Rvs Ms Ack Abis IS2000FCH Fwd ServiceConnect Service Connect Msg Service Connect Complete Abis IS2000FCH Rvs Ser Conn Comp CM Service Req Assignment Complete MSC Assignment Req PagingRequest Abis PCH MsgTransfer GPM GPM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 PCH ACH PCH TCH PCH TCH ...

Страница 26: ... to BTS via Abis IS2000 FCH Fwd message BTS forwards the order to MS over the forward traffic channel 16 After MS receives BS Ack Order it stops sending traffic channel preamble and starts sending data frame 17 After MS receives BS Ack Order it sends MS Ack Order to BTS BTS forwards the order to BSC via Abis IS2000 FCH Rvs message 18 After BSC receives MS Ack Order it sends service connection mess...

Страница 27: ... connection Mobile IP Registration A11 Registration Reply Life time Accept ECAM 7 BS Ack Order 8 MS Ack Order 9 Service Connect Msg 10 Service Connect Cmp Msg 6 Tch Preamble 12 5 13 Figure 3 3 Mobile originated data service procedure 1 MS sends Origination message to BTS via the access channel on air interface 2 After BTS receives the Origination message it sends BS Ack Order to MS 3 BSC construct...

Страница 28: ...onnection between A8 and A10 is established 15 After both radio traffic channel and terrestrial circuit are established BSC sends Assignment Complete message to MSC 16 MS negotiates with PDSN to establish PPP connection In the case of Mobile IP access Mobile IP connection will be established PPP message and Mobile IP message are transmitted in traffic channel and are transparent to BSC PCF 17 Afte...

Страница 29: ...up Ack to BSC indicating the completion of terrestrial circuit establishment 6 BSC sends Abis Burst Request to BTS for activating BTS 7 BTS responds Abis Burst Response message to BSC 8 BSC sends Abis Burst Commit to BTS and BTS starts to transmit SCH 9 BSC sends Extended Supplemental Channel Assignment Message and assigns SCH channel for MS so that the packet data service can be transmitted at hi...

Страница 30: ...ement BTS is responsible for assigning traffic link on Abis interface IV BTS logic O M functions BTS provides the following logic O M functions l Resource status indication l Cell configuration function l Overhead message updating l Cell breath control function l Cell block unblock function l Radio measurement report function V Common channel processing BTS is responsible for the establishment and...

Страница 31: ...nel coding rate adaptation block interleaving long code scrambling power control bit insertion Walsh code spreading spectrum signal modulation and baseband filtering as shown in Figure 3 5 Channel coding Rate adaptation Block interleave Long code scrambling Walsh code spreading spectrum QPSK modulation Baseband filtering Channel coding Rate adaptation Block interleave Long code scrambling Walsh co...

Страница 32: ...terleave Channel decoding Extract information bit Multi path signal demodulation De interleave Channel decoding Extract information bit Figure 3 6 Baseband processing in reverse channel l Multi path demodulation With Rake receiver BTS can demodulate the radio multi path signals and effectively combine multi path energy l De interleaving Signals received from MS are interleaved signals so de interl...

Страница 33: ...s to the BTS are different can reach the BTS with the same power l Realize the system soft capacity control l Prolong MS battery life l Minimize MS radiation to the human body II Types Power control can be divided into forward power control and reverse power control The forward power control is used to control BTS s transmit power while the reverse power control aims to control MS s transmit power...

Страница 34: ...loop power control method The MS determines the transmit power intensity to access the BTS according to the received pilot signal strength l Closed loop power control method The BTS issues power control command to the MS and performs the adjustment according to MS feedback The principle of closed loop power control is shown in the following figure MS BTS BSC Eb Nt FER Power control bit Eb Nt chang...

Страница 35: ...d the conversation quality is unacceptable the handoff occurs in order to avoid the interruption of the call l Better cell handoff If the rescue handoff condition is not triggered this handoff may occur if conversation quality or network performance can be improved The handoff is called better cell handoff because there is better cell for the call l Traffic handoff This kind of handoff occurs when...

Страница 36: ...400 20ms frame or 9600 5ms frame RC1 9600 4800 2400 or 1200 RC2 14400 7200 3600 or 1800 RC3 or RC4 9600 4800 2700 or 1500 20ms frame or 9600 5ms frame F FCH RC5 14400 7200 3600 or 1800 20ms frame or 9600 5ms frame RC1 9600 F SCCH RC2 14400 RC3 153600 76800 38400 19200 9600 4800 2700 or 1500 20ms frame RC4 307200 153600 76800 38400 19200 9600 4800 2700 or 1500 20ms frame F SCH RC5 230400 115200 576...

Страница 37: ...dom access packet transmission in the reversed link F CACH controls Reverse Common Control Channel R CCCH and Forward Common Power Control Channel F CPCCH in Reservation Access Mode and provides the quick acknowledgement in power controlled access mode In addition it also provides congestion control function l Forward Common Power Control Channel F CPCCH F CPCCH is used in the system to support mu...

Страница 38: ...lot channel of the same BTS l Forward Traffic Channel F TCH F TCH is used to send the user information and signaling information to an MS during the call F TCH can be sub divided into Forward Dedicated Control Channel F DCCH which bears traffic information and signaling information Forward Fundamental Channel F FCH which bears traffic information Forward Power Control sub channel F PC sub channel ...

Страница 39: ...lots Each timeslot can be divided into paging indicator and configuration change indicator The data rate that can be supported is 2 400bit s or 4 800bit s Note In Figure 3 8 the channel in shadow will be supported in the subsequent version For the location and function of the above channels in call procedures please refer to Section 3 1 Call Procedure 2 Reverse physical channel configuration The c...

Страница 40: ... signaling information Reverse Fundamental Channel R FCH used to bear traffic information Reverse Supplemental Channel R SCH used to bear the traffic information and Reverse Power Control sub channel R PC subchannel which is only used in RC3 and RC4 The MS supports inner loop power control and outer loop power control on this channel l Reverse Enhanced Access Channel R EACH R EACH is used by MS to...

Страница 41: ...d This feature is especially important to CDMA system The control range of transmit power provided by BTS3601C for cell breath is 24dB The transmit power is regulated at a step of 0 5dB 3 5 Operation and Maintenance BTS3601C provides convenient operation maintenance functions The functions can be classified as loading management configuration management equipment management status management traci...

Страница 42: ...e upgrading for the individual boards make sure to load the FPGA software first then the CPU software II Configuration data loading Data loading involves data downloading and uploading For BTS configuration data if no available configuration data file exists in the Flash Memory of MBPB BTS3601C will send a request to BAM for configuration data loading The configuration data can be downloaded in th...

Страница 43: ...t mask of BSC VPI value of BSC signaling link VCI value of BSC signaling link signaling IP address of BTS signaling sub network mask of BTS VPI value of BTS signaling link and VCI value of BTS signaling link III Abis traffic link configuration This function is used to configure the Abis traffic link between BSC and BTS AAL2 adaptation is adopted for Abis traffic link BTS3601C supports the configur...

Страница 44: ...ASS type this command is used to configurate GPS GLONASS receiver card to receive GPS signal only or GLONASS signal only or both of GPS and GLONASS signal The following configuration items are provided for this function Satellite card type and satellite card operational mode VII Channel processing parameters configuration This function is used to configure the channel processing parameters for CSM...

Страница 45: ...and BTS operation start The following configuration items are provided for this function Local cell ID local sector ID carrier ID BSC signaling IP signaling sub net mask of BSC VPI of BSC signaling link VCI of BSC signaling link BTS signaling IP signaling sub net mask of BTS VPI of BTS signaling link VCI of BTS signaling link VPI of BSC traffic link VCI of BSC traffic link VPI of BTS traffic link ...

Страница 46: ... and the later records the running information of boards IV Alarm management This function includes alarm detection alarm report query of current alarms query of history alarms and deletion of history alarms Alarm detection and report functions are used to detect faults on the links devices or resources during the BTS3601C operation and report the corresponding alarms to OMC BTS3601C can store mor...

Страница 47: ...tication User authentication is used to realize login control and authority control over the users logged in to the BTS through Telnet BTS3601C supports users of the system level and of the guest level with corresponding operation authorities The user name for system level user is system and the initial password is system The user name for guest level users is guest and the initial password is gue...

Страница 48: ...es BTS will be powered on again 2 minutes later X Environment alarm threshold management This function includes the environment alarm threshold setting and query of MBPB and of MTRB XI MASU management This function can be used to support MBPB MASU communication and query MASU board status 3 5 4 Status Management This function supports the active report of status periodic report of status board sta...

Страница 49: ...k mode Master master mode Slave slave mode LOS alarm E1 T1 signal lost alarm AIS alarm E1 T1 alarm indication signal LFA E1 T1 frame lost alarm LMFA E1 T1 multi frame lost alarm RRA E1 T1 remote alarm E1 T1 State E1 T1 link work state Ok Config state Not Config not configured Config configured Work mode ATM_UNI ATM UNI mode UNI State Tx port status Active activated Inactive not activated Rx port s...

Страница 50: ...id Carrier ID Local Cell Unavailable Local Cell Available CCH Setup common channel already setup Local cell state Local cell state OH Msg Updated overhead message already updated Heater Board State Heater Board State Not Installed Heating Not Heating l MTRB special statuses include TRX Band Class MTRB band TRX ARFCN MTRB frequency point TRX GAIN MTRB fade gain unit dB TRX BLOCK FLAG MTRB block fla...

Страница 51: ...the loopback test on MBPB BTRB link including the O M link and signaling link The control console determines the data and length of loopback Loopback data are sent from the control console forwarded by OMU to the high layer of board software and looped back Then OMU will make judgment whether the data are correct and return the information to the control console II E1 T1 loopback test This functio...

Страница 52: ...ghtning strike when 1 There are only AC interfaces outdoor environment or 2 The power distribution system does not have all round protection mechanism indoor environment BTS3601C uses the single phase lightning protection box SPD211SZ of AC power supply It is connected between the mains cable and the BTS input cable and can resist the surge current over 40kA The phase voltage of local mains shall ...

Страница 53: ...formance of BTS lightning protection system I Lightning protection for RF antenna and feeder Antenna feeder lightning protection is to protect against secondary lightning attack i e the inductive lightning Inductive lightning means that the feeder receives inductive current at the moment of lightning attack which may cause damage to the equipment Inductive lightning can be prevented effectively in...

Страница 54: ...tual implementation the number of grounding points depends on the length of the feeder l External lightning protector In normal condition a lightning arrester is connected at antenna side and BTS equipment side respectively so as to avoid the possible damage to the BTS equipment and antenna caused by the lightning current induced by feeder core l Build in lightning protection unit The lightning pr...

Страница 55: ...nstalled to invert DC into the 220V AC II Site configuration l Basic configuration The basic configuration is one carrier for omni cell l Other configuration S 0 5 0 5 configuration A 1 to 2 passive power splitter should be added on the basis of the basic configuration Besides the omni antenna should be replaced with two directional antennae to realize the directed coverage of the two sectors Casc...

Страница 56: ...face its STM 1 interface cannot serve to cascade the subordinate BTS I Star networking Start networking is as shown in Figure 3 13 In this mode each BTS is directly connected with BSC with an E1 trunk line BTS3601C BTS3601C BSC E1 BTS3601C E1 E1 Figure 3 13 BTS star networking Star networking varies in transmission media and media networking The following are two star networking modes based on the...

Страница 57: ...ace II Optical fiber chain networking Optical fiber chain networking requires the support of SDH transmission system The BTS3601C is connected to the transmission system via the STM 1 interface as shown in Figure 3 16 STM 1 STM 1 BSC BTS3601C BTS3601C STM 1 STM 1 BSC BSC BTS3601C BTS3601C BTS3601C BTS3601C Figure 3 16 Chain networking Since each BTS3601C obtains E1 from the transmission system via...

Страница 58: ...the master BTS in network implementation Different optical interface module allows different distances 10km or 70km between two cascaded BTSs One BTS3601C can be cascaded with at most two ODU3601Cs and the cascading distance reaches 60km The networking is as shown inFigure 3 18 BSC E1 Optical fiber ODU3601C ODU3601C Optical fiber BTS3601C BSC BSC E1 Optical fiber ODU3601C ODU3601C ODU3601C ODU3601...

Страница 59: ...and GSM mini BTS are constructed at the same site transmission resources can be shared and network construction can be expedited Co transmission networking generally requires BTSs of the first level be connected to the SDH transmission system via the STM 1 interface BTSs of the second and first levels are directly connected via the E1 trunk cables Co transmission networking with GSM mini BTS is sh...

Страница 60: ...ity of 90 is below the maximum values listed in Table A 1 Table A 1 Access probe failure rate Eb N0 Per RF input point dB Maximum failure rate 5 5 50 6 5 10 A 1 3 R TCH Demodulation Performance I Performance of R TCH in Additive White Gaussian Noise AWGN The demodulation performance of the Reverse Traffic Channel in AWGN no fading or multipath environment is determined by the frame error rate FER ...

Страница 61: ...le A 4 Maximum FER of F FCH or R DCCH receiver in demodulation performance test under RC3 FER limit Data rate bit s Lower limit Eb N0 Upper limit Eb N0 9 600 2 3 2 4 dB 0 3 3 0 dB 4 800 2 3 3 8 dB 0 4 4 4 dB 2 700 2 5 5 0 dB 0 5 5 6 dB 1 500 1 7 7 0 dB 0 4 7 6 dB Table A 5 Maximum FER of R SCH receiver in demodulation performance test under RC3 FER limit Data rate bit s Lower limit Eb N0 Upper lim...

Страница 62: ...Eb N0 28 800 27 0 7 dB 0 5 1 3 dB 57 600 28 0 2 dB 0 2 0 8 dB 115 200 60 0 2 dB 0 1 0 4 dB 230 400 33 0 5 dB 0 1 0 1 dB II R TCH performance in multipath fading without closed loop power control The performance of the demodulation of the Reverse Traffic Channel in a multipath fading environment is determined by the frame error rate FER at specified Eb N0 value FER of 4 possible data rates should b...

Страница 63: ...test Case Channel Simulator configurations B 2 8 km h 2 paths C 3 30 km h 1 path D 4 100 km h 3 paths D2 4 100 km h 3 paths Table A 12 Eb N0 limits of R TCH without closed loop power control Eb N0 Limits dB Rate configuration Condition Lower limit Upper limit B 11 1 11 7 C 11 2 11 8 D 8 8 9 4 RC1 D2 9 2 9 8 B 10 7 11 3 D 8 5 9 1 RC2 D2 8 9 9 5 Table A 13 Maximum FER of demodulation performance tes...

Страница 64: ...sible data rates needs to be calculated respectively With 95 confidence the FER for each data rate shall not exceed that given by linear interpolation on a log10 scale between the two values given in Table A 16 and 错误未找到引用源 And the test value of Eb N0 assumes the average value of Eb N0 tested on the two RF input ports Table A 15 Channel models for the R TCH receiving performance test Condition Nu...

Страница 65: ... s Lower limit Eb N0 Upper limit Eb N0 9 600 20 ms 2 4 3 4 dB 0 5 4 0 dB 4 800 2 0 4 4 dB 0 5 5 0 dB 2 700 1 8 5 6 dB 0 5 6 2 dB A 1 500 1 8 7 2 dB 0 6 7 8 dB 9 600 20 ms 2 0 3 9 dB 0 5 4 5 dB 4 800 2 0 4 9 dB 0 5 5 5 dB 2 700 1 8 6 1 dB 0 5 6 7 dB B 1 500 1 7 7 8 dB 0 5 8 4 dB 9 600 20 ms 1 5 5 2 dB 0 6 5 8 dB 4 800 1 5 6 1 dB 0 6 6 7 dB 2 700 1 4 7 2 dB 0 6 7 8 dB C 1 500 1 4 8 8 dB 0 6 9 4 dB 9...

Страница 66: ...B 14 400 2 0 3 8 dB 0 4 4 4 dB 7 200 2 0 4 3 dB 0 5 4 9 dB 3 600 1 8 5 6 dB 0 5 6 2 dB B 1 800 1 8 7 5 dB 0 5 8 1 dB 14 400 1 6 5 1 dB 0 6 5 7 dB 7 200 1 7 5 6 dB 0 7 6 2 dB 3 600 1 5 6 7 dB 0 6 7 3 dB C 1 800 1 6 8 4 dB 0 7 9 dB 14 400 2 0 4 6 dB 0 5 5 2 dB 7 200 2 0 5 1 dB 0 5 5 7 dB 3600 1 9 6 3 dB 0 5 6 9 dB D 1 800 1 8 8 1 dB 0 6 8 7 dB Table A 22 Maximum FER of demodulation performance test ...

Страница 67: ...d diversity input ports III Single tone desensitization 450MHz band Input the single tone interference deviated from the center frequency at the BTS RF input port when the single tone interference deviates from the center frequency 900 kHz and 900 kHz the input single tone interference power is 87dB higher than the output power of the mobile station simulator When R TCH FER maintains 1 5 the outpu...

Страница 68: ...all increase by no more than 3 dB and the FER shall be less than 1 5 with 95 confidence A 1 5 Limitation on Emission I Conducted spurious emission At BTS RF input port the conducted spurious emissions within the BTS receiving frequency range is 80dBm 30kHz At BTS RF input port the conducted spurious emissions within the transmitting frequency range is 60dBm 30kHz At BTS RF input port the conducted...

Страница 69: ...dedicated transmit sector is less than 5 10 8 0 05ppm of the designated frequency A 2 2 Modulation Requirement I Synchronization and timing Time tolerance for pilot frequency The pilot time alignment error should be less than 3 ls and shall be less than 10 ls For base stations supporting multiple simultaneous CDMA Channels the pilot time tolerance of all CDMA Channels radiated by a base station sh...

Страница 70: ...channel shall be 27 dB or more below the total output power For RC3 and RC4 the code domain power in each inactive Wn 128 channel shall be 30 dB or more below the total output power For RC1 and RC2 the code domain power in each inactive Wn 256 channel shall be 33 dB or more below the total output power of each carrier A 2 4 Limitation on Emission I Conducted spurious emission The requirements on C...

Страница 71: ...A 12 Offset from carrier central frequency Spurious requirement 4 00 MHz ITU Class B Requirement 36 dBm 1 kHz 36 dBm 10 kHz 36 dBm 100 kHz 30 dBm 1 MHz 9 kHz f 150 kHz 150 kHz f 30 MHz 30 MHz f 1 GHz 1 GHz f 12 5 GHz II Radiated spurious emission The radiated spurious emission complies with local radio specifications ...

Страница 72: ...6 V1 2 1 2000 03 They are described in two aspects EMI EelectroMagnetic Interference and EMS ElectroMagnetic Sensitivity B 1 EMI Performance I Conductive Emission CE at DC input output port CE performance indices are listed in Table B 1 Table B 1 CE index at 48V port Threshold dB l V Frequency range Average Quasi peak 0 15 0 5MHz 0 5 5MHz 5 30MHz 56 46 46 50 66 56 56 60 II Radiated Emission RE RE ...

Страница 73: ...nsient interference test is class B Requirement for power drop and level interruption is shown in Table B 4 Table B 4 Requirement for power drop and level interruption Test port Test level Performance class Drop 30 Last for 10ms A Drop 60 Last for 100ms When there is backup power A When there is no backup power the communication link need not be maintained It can be re created and the user data ca...

Страница 74: ...put port and the input output port of the connection line when cabinets are combined should satisfy the requirement for RF conductive anti interference Voltage level is shown in Table B 6 Table B 6 Voltage level Test port Voltage level Performance class DC line port AC line port Signal line port and control line port 3V A Note Test method is the same as IEC61000 4 6 9 V Surge For CDMA equipment th...

Страница 75: ...ware or data all data in the storage or the data being processed related to the tested switching equipment Equipment performance is not lowered Performance class B it means that BTS can withstand the test without any damage There is no change in the software or the data in storage Communication performance is lowered a little but in the tolerance as defined for different products The existing comm...

Страница 76: ...a 106kPa Temperature 40 70 Celsius degree Temperature change rate Ÿ1 Celsius degree min Relative humidity 10 100 Solar radiation Ÿ1120W s Thermal radiation Ÿ600W s Wind speed Ÿ30m s Rain Drippings II Biotic environment l No microorganism like fungal or mould multiplied around or inside l Free from the attack of rodential animals such as rats III Air cleanness l No explosive electrically magnetical...

Страница 77: ...e 2 9Hz 9 200Hz Impact response spectrum II Ÿ250m s Unsteady impact Static load capability Ÿ5kPa Note Impact response spectrum The max acceleration response curve generated by the equipment under the specified impact excitation Impact response spectrum II indicates that the duration ofsemi sinusoidal impact response spectrum is 6ms Static load capability The capability of the equipment in package ...

Страница 78: ...Sands mg m Ÿ100 Note Suspending dust diameter Ÿ75lm Falling dust 75lmŸdiameterŸ150lm Sands 150lmŸdiameterŸ1 000lm l The density of chemical active substances shall meet the requirements listed in Table C 7 Table C 7 Requirements on the density of chemical active substances Chemical active substance Unit Content SO2 mg m Ÿ0 30 H2S mg m Ÿ0 10 NO2 mg m Ÿ0 50 NH3 mg m Ÿ1 00 Cl2 mg m Ÿ0 10 HCl mg m Ÿ0 ...

Страница 79: ...mperature and humidity is 2 m above the floor and 0 4 m in front of the equipment when there are no protective panels in front of and behind the cabinet Table C 10 Requirements on other climate environment Item Range Altitude Ÿ4000m Air pressure 70kPa 106kPa Temperature change rate Ÿ5 Celsius degree min Solar radiation Ÿ1120W m Rain Ÿ12 5L min ０６２５ L min IPX5 Wind speed Ÿ50m s II Biotic environme...

Страница 80: ...0 Cl2 mg m Ÿ0 10 HCl mg m Ÿ0 10 HF mg m Ÿ0 01 O3 mg m Ÿ0 05 NOx mg m Ÿ0 05 Soft mist Yes IV Mechanical stress Table C 13 Requirements on mechanical stress Item Sub item Range Displacement Ÿ3 5mm Acceleration Ÿ10 0m s Sinusoidal vibration Frequency range 2 9Hz 9 200Hz Impact response spectrum II Ÿ100m s Unsteady impact Static load capability 0 Note Impactresponsespectrum The max acceleration respon...

Страница 81: ...hysical layer TIA EIA IS 2000 2 A Physical Layer Standard for cdma2000 Spread Spectrum Systems II MAC layer TIA EIA IS 2000 3 A Medium Access Control MAC Standard for cdma2000 Spread Spectrum Systems III Service capability TSB2000 Capabilities Requirements Mapping for cdma2000 standards E 3 Abis Interface I Physical layer l E1 interface E1 Physical Interface Specification September 1996 l SDH STM ...

Страница 82: ...munications broadband ISDN ATM Layer Functionality and specification III ATM adaptation layer ITU T recommendation I 366 2 B ISDN ATM Adaptation Layer Type 2 Specification ITU T I 363 5 B ISDN ATM Adaptation Layer 5 Specification Type 5 AAL IV TCP IP RFC791 Internet Protocol RFC793 Transport Control Protocol V Abis interface high layer protocol 3GPP2 A R0003 Abis interface technical report for cdm...

Страница 83: ...d Audio Equipment 73 23 EEC Low Voltage Directive UL 1950 Safety of information technology equipment including Electrical Business Equipment IEC60529 Classification of degrees of protection provided by enclosure IP Code GOST 30631 99 General Requirements to machines instruments and other industrial articles on stability to external mechanical impacts while operating GOST R 50829 95 Safety of radio...

Страница 84: ... measurement techniques Section 3 Radiated radio frequency electromagnetic field immunity test IEC 61000 4 4 1995 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Section 4 Electrical fast transient burst immunity test IEC 61000 4 5 1995 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Section 5 Surge immunity test IEC 61000 4 6 1996 Electromag...

Страница 85: ...r protected locations ETS 300 019 2 1 Equipment Engineering EE Environmental conditions and environmental tests for telecommunications equipment Part2 1 Specification of environmental tests Storage ETS 300 019 2 2 Equipment Engineering EE Environmental conditions and environmental tests for telecommunications equipment Part2 2 Specification of environmental tests Transportation ETS 300 019 2 3 Equ...

Страница 86: ...User Manual iSiteC BTS3601C CDMA Base Station System Description Appendix E Standard Compliance E 6 GOST 23088 80 Electronic equipment Requirements to packing and transportation and test methods ...

Страница 87: ...SPB Micro bts E1 Surge Protector Board MTRB Micro bts Transceiver Board MTRM Micro bts Transceiver Module F 2 Glossary 3GPP2 3rd Generation Partnership Project 2 A Availability A1 A2 A5 A3 A7 A8 A9 A10 A11 AAA Authorization Authentication and Accounting AAL2 ATM Adaptation Layer 2 AAL5 ATM Adaptation Layer 5 Abis AC Authentication Center A D Analog Digit ADC Analog Digit Converter ANSI American Na...

Страница 88: ...nnel F QPCH Forward Quick Paging Channel F SCCH Forward Supplemental Code Channel F SCH Forward Supplemental Channel F SYNCH Forward Sync Channel F TCH Forward Traffic Channel F TDPICH Forward Transmit Diversity Pilot Channel FTP File Transfer Protocol GLONASS Global Navigation Satellite System GMSC Gateway Mobile services Switching Centre GPS Global Positioning System GRIL GPS GLONASS Receiver In...

Страница 89: ... Virtual Path PWM Pulse Width Modulation QIB Quality Identification Bit QoS Quality of Service QPSK Quadrature Phase Shift Keying R ACH Reverse Access Channel RC Radio Configuration RC1 Radio Configuration 1 RC2 Radio Configuration 2 RC3 Radio Configuration 3 RC4 Radio Configuration 4 R CCCH Reverse Common Control Channel R DCCH Reverse Dedicated Control Channel R EACH Reverse Enhanced Access Chan...

Страница 90: ...DMA Time Division Multiple Access TE1 Terminal Equipment 1 TE2 Terminal Equipment 2 TIA Telecommunications Industry Association TMSI Temp Mobile Subscriber Identifier TRX Transceiver UART Universal Asynchronous Receiver Transmitter Um UTC Universal Coordinated Time VCI Virtual Channel Identifier VLR Visitor Location Register VPI Virtual Path Identifier ...

Страница 91: ... Maintenance Instructions 3 1 3 1 Overview 3 1 3 1 1 Purposes of Routine Maintenance 3 1 3 1 2 Classification of Routine Maintenance Operations 3 1 3 1 3 Usage of Routine Maintenance Records 3 2 3 2 Monthly Maintenance Instructions 3 7 3 3 Quarterly Maintenance Instructions 3 7 3 4 Yearly Maintenance Instructions 3 7 Chapter 4 Fault Analysis and Locating 4 1 4 1 Fault Handling Process and Method 4...

Страница 92: ...lation 5 2 5 1 4 Replacement Completion 5 3 5 2 Part Replacement 5 3 5 2 1 Module Replacement 5 3 5 2 2 Optical Fiber Replacement 5 4 Appendix AModule Maintenance Window Introduction A 1 A 1 MBPM A 1 A 2 BTRM A 3 A 3 MPAM A 4 A 4 MFEM A 5 A 5 MAPM A 5 Appendix B Return Loss VSWR and Reflection Coefficient B 1 Appendix C Near Command Index C 1 ...

Страница 93: ... 1 In terms of the distance to the BTS it is classified into two kinds the near O M part and remote O M part BTS BSC Router Router internet IPOA IPOA IP over Ethernet IP over Ethernet IP over Ethernet IP over Ethernet IP over Ethernet BTS BAM Figure 1 1 Structure of BSS local O M system I Near O M Part The near O M is realized through the near maintenance console which is connected through 10 100B...

Страница 94: ...d BTS and wait for the response Then BAM will record the corresponding operation result such as success failure timeout or abnormality and send the result to the Client in a specified format Through the maintenance console a user can perform remote maintenance and monitoring over all the BTSs Meanwhile information from these BTSs can be collected for network planning and optimization BSS remote O ...

Страница 95: ...hrough BSC The typical networking of M2000 mobile integrated NMS is shown in Figure 1 3 E1 DDN X 25 Frame relay Dialup server LAN NE NE M2000 server Work station l Support such flexible networking modes as E1 DDN X 25 and frame relay l Support remote dial up maintenance NE PSTN NE Network element DDN Digital Data Network PSTN Public Switched Telephone Network LAN local area network Figure 1 3 Netw...

Страница 96: ...he configuration of cell signaling service link clock parameters channels E1 Time Slots TS baseband board IP address and so on II Maintenance function The maintenance function is used to perform the O M of the BTS including l Information query The information that can be queried include E1 TS configuration board version board electronic label board status special status logs interface status alarm...

Страница 97: ...unction is used to manage the alarm information Being the indication of the current and historical equipment operation statuses the alarm information is the major basis on which the equipment maintenance is performed The maintenance personnel can maintain the equipment according to the alarm information BSS including BTS and BSC alarm information can be managed in a centralized way through the int...

Страница 98: ...s the operations related to the backup of BTS configuration data To send the BTS configuration data for backup the storage path and file name should be set with this function with the suffix of the file name as bin The BTS just reset will request BAM for configuration data If the data have been backed up BAM will retrieve them and send them directly to the BTS rather than configure them again Figu...

Страница 99: ... in BAM is of the correct version Figure 1 6 Micro BTS loading management IV Micro BTS configuration management Figure 1 7 shows the micro BTS configuration management function The functions that the configuration commands of the near maintenance console can realize are almost the same as these functions The BTS configuration is usually realized at the remote maintenance console Figure 1 7 Micro B...

Страница 100: ...cro BTS equipment management Figure 1 8 shows the micro BTS equipment management function Figure 1 8 Micro BTS equipment management VI BTS Test Management Figure 1 9 shows the micro BTS test management function VII Micro BTS tracing management Figure 1 9shows the micro BTS tracing management functions ...

Страница 101: ...User Manual iSiteC BTS3601C CDMA Base Station BTS Maintenance Chapter 1 O M System Overview 1 9 Figure 1 9 Micro BTS test management tracing management ...

Страница 102: ...mmand lines based on MML to conduct O M for the BTS Note BTS3601C supports two kinds of users system and guest Users of the system level can execute all commands while those of the guest level can execute only part of the commands For details please refer to Appendix Near Command Index The default user name and password is usually set as User name system password system User name guest password gu...

Страница 103: ...optional or default parameter SET BTSCLK CLKSRC0 value CLKSRC1 value CLKSRC2 value This command involves 3 parameters The first one is mandatory and the later two are optional value is the parameter value that should be input II Input of Commands To input MML commands please note that l MML commands are NOT case sensitive l The punctuation used in a command should be in DBC case l If there is no n...

Страница 104: ...has been installed and is in normal communication with BSC I Run the maintenance console software Select Start Program Airbridge cBSS cdma 1X Administration System Airbridge cBSS Maintenance to enter the Service Maintenance System Set up the connection with BAM for details please see the online help 2 2 2 Use of the Console The remote maintenance console is different from the near maintenance cons...

Страница 105: ... maintenance This method is applied on regular basis to observe the operation of the system test and analyze equipment performance Unconventional maintenance The unconventional method is to test whether the system performance has degraded by artificially creating some faults For example maintenance engineers may artificially create some faults and test if the alarm system reports alarm correctly I...

Страница 106: ...And specific instructions have been given after those tables I Daily unexpected fault handling record Note down in details the unexpected faults occurred in BTS3601C daily maintenance operations in the table for future reference The user may modify the record according to the actual needs or compile the records into manuals II Monthly maintenance record Note down in details the actual maintenance ...

Страница 107: ...n fault is solved Person on duty Handled by Classification of fault Micro bts Ac dc Power supply Module MAPM Micro bts Radio Frequency Front End Module MFEM Antenna and feeder system Micro bts Transceiver Module MTRM Micro bts Power Amplifier Module MPAM Others Fault detected With user complaint From the alarm system In Daily maintenance From other sources Description of fault Fault handling resul...

Страница 108: ...mal Abnormal Temperature Normal Abnormal Humidity Normal Abnormal Indoor air conditioner Normal Abnormal Upon indoor installation Call test Normal Abnormal Battery group Normal Abnormal When a battery group is used Grounding lightening protection and power supply system Normal Abnormal RF antenna and feeder part Normal Abnormal Power supply module Normal Abnormal Description of fault and handling ...

Страница 109: ...nce Record Site _______________ Time of maintenance ____ MM _____ DD ____ YY ____ MM ____ DD ____ YY Maintainer Items Status Remarks Maintenance engineers Power supply Normal Abnormal Road test Normal Abnormal Accessories check Normal Abnormal Description of fault and handling measures taken Problems remained Shift leader check ...

Страница 110: ...Items Status Remarks Maintenance engineers Call test Normal Abnormal Cabinet sanitation Normal Abnormal BTS power output Normal Abnormal Grounding resistance and grounding wires Normal Abnormal Water proof performance of antenna and feeder connector and lightening protection grounding clip Normal Abnormal Firmness and angle of antenna Normal Abnormal Description of fault and handling measures take...

Страница 111: ...nd frequency are in the specified range Range of normal input voltage Rated frequency Road test Test on the handoff and coverage area of the cells with a test MS Accessories check Check the auxiliary facilitybox and UPS etc 3 4 Yearly Maintenance Instructions Items Instructions Note Call test Make calls with an MS Collect information at both the MS and the BSC to see if all calls are normal for al...

Страница 112: ...sation quality MS access failure l Maintenance Operation Engineer In some case fault might happen while loading data or sending commands 4 1 2 General Handling Procedure The fault handling process involves four stages Information collection fault judgment fault location and troubleshooting l Information collection Collect all available original information l Fault judgment Specify the fault range ...

Страница 113: ...ied together with alarm information IV MS dialing test In most cases BTS functions affect the quality of voice and data services It is a straightforward method to verify calling function and BTS modules via MS dialing test This method is frequently used to verify signaling system voice and data transmission V Instruments and meters It is a conventional technical method for BTS fault handling to an...

Страница 114: ...al fiber loopback test Note When E1 outloop test is activated on the BSC side the time parameter is mandatory Otherwise the BTS will be kept in the disconnected status all the time unless the BTS is reset on the site IX Contrast Conversion In the contrast mode the user can compare the faulty part or phenomenon with the normal part or phenomenon so as to detect the dissimilarity and locate the faul...

Страница 115: ... local office If you cannot locate or solve the fault you can contact Huawei local office or contact Huawei headquarters Within the warranty period Huawei provides the following services Telephone consultation telephone instruction remote dial up diagnosis on the site support hardware maintenance complaint handling on the site training and regional manager service Contact information of Huawei Cus...

Страница 116: ...g E1 trunk If the BER is greater than the specified value transmission problems may exist Contact Huawei local office to solve the problems in the transmission system Check BER in the following steps Execute the command for E1 outloop test on the maintenance console of BSC and measure the BER of the corresponding E1 with BER tester on the MSC side 4 2 2 OML Fault I Fault Description After BTS is p...

Страница 117: ...n with BTS and BAM 4 Check BTS BOOTP information to ensure consistency with BSC side 1 If the physical layer of OML is implemented via E1 it should be configured in the UNI mode If the UNI link status is incorrect OML will become faulty 2 BOOTUP request shall succeed before OML setup MAC field must be unique within BOOTUP request package In case there are duplicated MAC in CMUX BOOTUP request pack...

Страница 118: ...ask and TCP port No Make sure that the PVC used by Abis signaling link is different from that used for Abis service Physical link problems on the BTS side Please refer to 4 2 1 Transmission Equipment Fault Transmission system fault Please refer to 4 2 1 Transmission Equipment Fault 4 2 4 Coverage Fault Coverage faults are caused most possibly by faults with the antenna feeder system Other system m...

Страница 119: ...the output terminal of MPAM If the power is normal the transmission tributary of MFEM is faulty 3 If the output power measured at MPAM output terminal is abnormal measure the power output at the output port of MTRM If the result is normal MPAM may be faulty otherwise MTRM is faulty If MTRM MFEM or MPAM is found damaged replace it II Signal Fluctuation 1 Fault Description The signals received by MS...

Страница 120: ...nd the frequency of the basic paging channel Then it will enter the Timing Change Substate In this substate the MS will synchronize long code status and system timing with CDMA system timing based on the information received from the synchronization channel messages including pilot PN offset long code status and system time Then it will enter the idle state In this idle status the MS should receiv...

Страница 121: ...ble 2 Sometimes the cell may be deleted due to lack of physical equipment or due to mis operations such as deleting a device by mistake and the MS cannot be accessed to the network This cell is blocked The logic configuration for the cell has been completed but the MS still cannot access to the network Please check whether this cell has been blocked Execute the command micro dsp btsbrdstat to quer...

Страница 122: ...it is necessary to configure such parameters as sector gain carrier gain pilot channel gain sync channel gain and paging channel gain etc If these parameters are not properly set for example they are set too low the MS cannot capture the common channel and thus cannot access to the network Incorrect overhead message The logic configuration for the cell has been completed but the MS still cannot lo...

Страница 123: ...oting Fault cause Fault location Handling methods Remarks The communication is abnormal between the maintenance console and BTS Check whether the communication between BTS and the remote maintenance console is normal 1 Check whether OML and OMC are normal and whether the FTP service is activated Please refer to 4 2 2 OML Fault 2 Check whether BSC is the normal operation status Please refer to the ...

Страница 124: ...cal factors If less than 4 GPS satellites are captured the BTS may be unable to obtain reliable clock signals Query the special status of MBPB so as to query the clock signals of the BTS Execute the command DSP BTSBRDSPECSTAT BRDTP MB PB and then view the Clock state part in the returned result After OML is successfully established BSC sends the corresponding configuration data In this case some B...

Страница 125: ...ement query the alarms from the remote maintenance console and make a record After replacement query the alarms again and check whether the corresponding alarm is cleared and whether a recovery alarm is generated III Version check Prior to replacement please confirm the version of the new module and make a record After replacement please query the software version to check whether the version is c...

Страница 126: ...errupted When the lower level BTS is a cascaded ODU3601C it is connected with MTRM of the BTS Therefore when the power of the BTS is switched off the service on ODU3601C will also be interrupted III Remove cable on the module bottom Remove the water resistant tape and the cable on the module bottom Make sure not to damage the fiber or fiber connectors IV Remove bolts on module top and those on mod...

Страница 127: ...ater resistant performance VI Switch on power Resume the power supply after replacement and check the relevant indicator after opening the cover of the maintenance window to judge whether the module is running normally If MAPM is replaced switch on the external power first 5 1 4 Replacement Completion After the replacement check the result in the following three aspects l Check whether the relevan...

Страница 128: ...rrect III Replace MTRM After MTRM is replaced query its version from the local maintenance console or OMC to check whether the version is correct IV Replace MFEM MFEM is connected with MTRM MPAM and the antenna feeder system through RF cable After replacement make sure to resume the connections otherwise the RF index will be affected V Replace MPAM MPAM is heavy due to the attached thermal tube Up...

Страница 129: ...ng with ODU3601C II Plug unplug fiber connector This operation should be conducted very carefully Make sure to avoid breaking the cores inside the fiber connector Before plugging align the fiber connector of MTRM with the fiber interface and align its spacing arm with the fixing slot of the interface Then carefully plug the connector into the fiber interface until you feel the connector well engag...

Страница 130: ...ce window as described in Table A 1 and Table A 2 Table A 1 Indicators in MBPM maintenance window Indicator Color Meaning Description Normal status RUN Green Status indicator Fast flash at 4Hz MBPM is not started or software downloading is in progress Slow flash at 0 5Hz MBPM is working normally Other The board is faulty Slow flash at 0 5Hz ALM Red Alarm indicator Fast flash at 4Hz Critical alarm ...

Страница 131: ...ternative flash flash interval is 1 second eastern optical fiber breakout Eastern optical fiber means the optical fiber used to cascade BTS Red and yellow alternative flash flash interval is 1 second western or two direction optical fibers breakout Western optical fiber means the optical fiber used to access the transmission system Caution In Table A 2 OFF means that the indicator is off The items...

Страница 132: ... E1 T1 ON Select 120 ohm for E1 T1 4 OFF Select E1 ON Select T1 5 OFF ON 6 OFF The output E1 T1 is not grounded ON The output E1 T1 are grounded 7 OFF MBPB is not powered off ON MBPB is powered off DIP switch No 8 OFF MASU is not powered off The output E1 T1 of the module is provided by MASU ON MASU is powered off The output E1 T1 of the module is provided by MBPB Table A 5 S2 DIP switch 1 OFF ON ...

Страница 133: ...munication interface for internal use RST Reset button TRX_ID An 4 digit DIP switch PP2S 2 second signal interface TX_TEST Test button used in forwardlocal pilot transmission LOAD Jumper for internal use Table A 8 TRX_ID DIP switch DIP switch No 4 3 2 1 MTRM No ON 0 ON 0 ON 0 0 ON 0 ON 0 OFF 1 1 ON 0 OFF 1 ON 0 2 ON 0 OFF 1 OFF 1 3 OFF 1 ON 0 ON 0 4 OFF 1 ON 0 OFF 1 5 This bit is invalid and the d...

Страница 134: ...in received signals RXD_TST Used for coupling test of diversity received signals A 5 MAPM Figure A 1 shows the MAPM maintenance window INPUT FAIL OUTPUT MCU DRU0 DRU1 ON OFF I O Figure A 1 MAPM maintenance window Indicators in MAPM maintenance window are described in Table A 10 Table A 10 Indicators in MAPM maintenance window Indicator Color Meaning Description Normal INPUT Green Power supply ON N...

Страница 135: ...58 0 17783 16 1 37668 0 15849 17 1 32898 0 14125 18 1 28805 0 12589 19 1 25276 0 1122 20 1 22222 0 1 21 1 19569 0 08913 22 1 17257 0 07943 23 1 15238 0 07079 24 1 13469 0 0631 25 1 11917 0 05623 26 1 10553 0 05012 27 1 09351 0 04467 28 1 08292 0 03981 29 1 07357 0 03548 30 1 06531 0 03162 31 1 058 0 02818 32 1 05153 0 02512 33 1 0458 0 02239 34 1 04072 0 01995 35 1 03621 0 01778 36 1 03221 0 01585...

Страница 136: ...urn Loss RL and VSWR are listed in the following table Reflection CoefficientΓ VSWR Returnloss dB Γ Ureflected Uforward VSWR Uforward Ureflected Uforward Ureflected RL Uforward Ureflected 20lg Γ 1 alg RL 20 VSWR 1 Γ 1 Γ RL 1 Γ 20lg Γ VSWR 1 VSWR 1 VSWR alg RL 20 1 alg RL 20 1 RL VSWR 1 VSWR 1 20lg Uforward stands for forward voltage while Ureflected stands for reflected voltage ...

Страница 137: ...BTS Log DSP BTSSERVICEPARA Query BTS Service Parameter HELP Help command LST BTSCURALM Query BTS Current Alarm LST BTSHISALM Query BTS History Alarm MOD BTSPWD Modify user password RMV BTSCELL Delete BTS Cell RMV BTSCFG Delete BTS Configuration Data RMV BTSHISALM Delete BTS History Alarm RST BTSBRD Reset BTS Board SAV BTSCFG Save BTS Configuration Data SET BTSAUTOCFG Start BTS Auto Configuration S...

Страница 138: ...3601C CDMA Base Station BTS Maintenance Appendix C Near Command Index C 2 Level Command Meaning system guest STR BTSLPBACKTST Start Board Loopback Test STR BTSRESTRC Start BTS ResourceTracing UBL BTSRES Unblock BTS Resource ...

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