Guide to Multi-Carrier CDMA2000 BTS3606 Document Product name cBTS3606 code Intended Maintenance engineer Product version V200R001C04B014 audience Edited by CBTS Development Document version 1.00 Department Guide to Multi-Carrier CDMA2000 BTS3606 Prepared by: Dong Qiufeng Date: Reviewed by: Date: Reviewed by: Date: Approved by: Date: 2005-05-20 Huawei Technologies Co., Ltd All rights reversed 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Revision Record Date 2005-05-20 Revision version 1.00 Description The first draft Author is Dong Qiufeng finished 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level Table of Content Chapter Overview Chapter Installation 2.1 Cable Connection of Typical Configurations 2.1.1 Configuration of Single Carrier O(1), Multi-Carrier O(2), and Multi-Carrier O(3) .5 2.1.2 Configuration of Multi-Carrier O(4), Multi-Carrier O(5), and Multi-carrier O(6) 2.1.3 Configuration of Single-Carrier S(1/1/1), Multi-Carrier S(2/2/2) and Multi-Carrier S(3/3/3) 2.1.4 Configuration of Multi-Carrier S(4/4/4), Multi-Carrier S(5/5/5) and Multi-Carrier S(6/6/6) 2.2 Hybrid Configuration of Single Carrier and Multi-Carrier .8 2.2.1 Hybrid Configuration of the CTRM and CMTR 2.2.2 Hybrid Configuration of the HPA and TRM Chapter Hardware and Software Configuration of Multi-carrier 10 3.1 Software Configuration .10 3.2 Hardware Configuration 10 Chapter Configuration of Multi-Carrier BTS 11 4.1 Key Points of Data Configuration 11 4.1.1 Resource Pool 11 4.1.2 TRM Configuration 11 4.1.3 Combined Cabinet Configuration .11 4.2 Configuration Examples (Configuration of Key Point) .12 4.2.1 O1 Configuration 12 4.2.2 O3 Configuration 13 4.2.3 O4 Configuration 13 4.2.4 O6 Configuration 14 4.2.5 S111 Configuration 15 4.2.6 S333 Configuration 16 4.2.7 S444 Configuration 17 4.2.8 S666 Configuration 19 Chapter Features of Multi-Carrier Power .23 5.1 Allocation of Multi-Carrier Power 23 5.2 CMPA Overdrive Threshold 23 5.3 Multi-Carrier Power Tracing 24 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level Chapter Multi-Carrier BTS Calibration 26 Chapter Limitation on Multi-Carrier System 27 7.1 One Cell of Multi-Carrier BTS .27 7.2 Multi-channel Carrier Board 27 Chapter Fault Location 28 8.1 Forward Power Abnormal 28 8.2 Reverse Channel Abnormal 28 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level Guide to Multi-Carrier CDMA2000 BTS3606 Key words: 3606, multi-carrier, CMTR, CTRM, CHPA, CMPA Abstract: This guide describes the development and maintenance personnel to use multi-carrier cBTS3606 Abbreviations: Abbreviations Full spelling CTRM Compact-BTS Transceiver Module CMTR Compact-BTS Multi-carrier Transceiver Module CHPA Compact-BTS High power Amplifier CMPA Compact-BTS Multi-carrier Power Amplifier CCPM Compact-BTS Channel Process Module CECM Compact-BTS EVDO Channel Module Reference Manual of 31161592-bts3606&3606a Data Configuration (V2.12) Installation Manual of 31041702-bts3606&3606a BTS Installation Reference (V2.12) 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level Chapter Overview The Multi-carrier cBTS3606 is developed to expand the capacity and improve the flexibility of the CDMA This chapter introduces the new function of multi-carrier cBTS3606 It enables the operator to add the number of sector carriers only by upgrading software and modifying configuration (no need to add hardware for a single cabinet) Thus, the capacity is expanded The TRM (CMTR) of each multi-carrier supports three carriers (three different channel numbers at the same band class) at most That is, CBTS3606 supports three times capacity of the original multi-carrier at most and supports CDMA2000 1X and cdma2000 1xEV-DO The single cabinet of the CBTS3606 with the full configuration S (6/6/6) supports 18 sector carriers at most shows the cabinet of multi-carrier cBTS3606 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 2005-08-01 All rights reversed Confidentiality level Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level Figure 1.1 Cabinet of multi-carrier cBTS3606 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level Chapter Installation This chapter describes how to install the multi-carrier cBTS3606 2.1 Cable Connection of Typical Configurations This section describes cables connection of some typical configurations 2.1.1 Configuration of Single Carrier O(1), Multi-Carrier O(2), and MultiCarrier O(3) Figure 1.1 shows the configuration of the RF cable of the single carrier O(1), multicarrier O(2), and multi-carrier O(3) The cable connection of the previous three configurations is the same; however, they are different only in setting the software parameters Sect or A Sect or B Sect or C CDDU CMPA RF_out RF_in Sample Figure 1.1 TX RX TX RX CMTR DR I MR I MRO TX TXF Configuration of single carrier O(1), multi-carrier O(2), and multi-carrier O(3) 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level 2.1.2 Configuration of Multi-Carrier O(4), Multi-Carrier O(5), and Multi-carrier O(6) Figure 1.1 shows the configuration of the RF cable of the multi-carrier O(4), multicarrier O(5), and multi-carrier O(6) The cable connection of the previous three configurations is the same; however, they are different only in setting the software parameters Sect or A CDDU CMPA RF_out RF_in Sample CMPA RF_out RF_in Sample TX1 RX1 TX2 RX2 CMTR DRI MRI MRO TX TXF CMTR DRI MRI MRO TX TXF Figure 1.1 Configuration of multi-carrier O(4), multi-carrier O(5), and multi-carrier O(6) 2.1.3 Configuration of Single-Carrier S(1/1/1), Multi-Carrier S(2/2/2) and Multi-Carrier S(3/3/3) Figure 1.1 shows the configuration of the RF cable of the single-carrier S(1/1/1), multi-carrier S(2/2/2), and multi-carrier S(3/3/3) The cable connection of the previous three configurations is the same; however, they are different only in setting the software parameters 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level CBTSTRM:BTSID=1,TRMID=1,RCKTP=MASTER,SN=1,DUPSN=0,TRMDES=”CMT R1”;  To specify the sector carrier on certain carrier of the TRM, execute the following commands ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 0,TRMID=1,CPLID=0; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 1,TRMID=1,CPLID=1; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 2,TRMID=1,CPLID=2; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 3,TRMID=0,CPLID=3; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 4,TRMID=0,CPLID=4; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 5,TRMID=0,CPLID=5; 4.2.5 S111 Configuration The S111 configuration includes three parts:  To configure the channel unit, execute the following command ADD CBTSCCPM:BTSID=1,BRDID=0,CPLID=0;  To configure the TRM, execute the following commands ADD CBTSTRM:BTSID=1,TRMID=1,RCKTP=MASTER,SN=1,DUPSN=0,TRMDES=”TRM 1”; ADD CBTSTRM:BTSID=1,TRMID=3,RCKTP=MASTER,SN=3,DUPSN=1,TRMDES=”TRM 3”; 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level ADD CBTSTRM:BTSID=1,TRMID=5,RCKTP=MASTER,SN=5,DUPSN=2,TRMDES=”TRM 5”;  To specify the sector carrier on certain carrier of the TRM, execute the following commands ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 0,TRMID=1,CPLID=0; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 0,TRMID=3,CPLID=0; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 0,TRMID=5,CPLID=0; 4.2.6 S333 Configuration The S333 configuration includes three parts:  To configure the channel unit, execute the following commands ADD CBTSCCPM:BTSID=1,BRDID=0,CPLID=0; ADD CBTSCCPM:BTSID=1,BRDID=2,CPLID=1; ADD CBTSCCPM:BTSID=1,BRDID=4,CPLID=2;  To configure the TRM, execute the following commands ADD CBTSTRM:BTSID=1,TRMID=1,RCKTP=MASTER,SN=1,DUPSN=0,TRMDES=”TRM 1”; ADD CBTSTRM:BTSID=1,TRMID=3,RCKTP=MASTER,SN=3,DUPSN=1,TRMDES=”TRM 3”; ADD CBTSTRM:BTSID=1,TRMID=5,RCKTP=MASTER,SN=5,DUPSN=2,TRMDES=”TRM 5”;  To specify the sector carrier on certain carrier of the TRM, execute the following commands ADD 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 0,TRMID=1,CPLID=0; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 1,TRMID=1,CPLID=1; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 2,TRMID=1,CPLID=2; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 0,TRMID=3,CPLID=0; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 1,TRMID=3,CPLID=1; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 2,TRMID=3,CPLID=2; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 0,TRMID=5,CPLID=0; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 1,TRMID=5,CPLID=1; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 2,TRMID=5,CPLID=2; 4.2.7 S444 Configuration The S444 configuration includes three parts:  To configure the resource pool, execute the following commands ADD CBTSCCPM:BTSID=1,BRDID=0,CPLID=0; ADD CBTSCCPM:BTSID=1,BRDID=2,CPLID=1; ADD CBTSCCPM:BTSID=1,BRDID=1,CPLID=2; 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level ADD CBTSCCPM:BTSID=1,BRDID=3,CPLID=3;  To configure the TRM, execute the following commands ADD CBTSTRM:BTSID=1,TRMID=1,RCKTP=MASTER,SN=1,DUPSN=0,TRMDES=”TRM 1”; ADD CBTSTRM:BTSID=1,TRMID=3,RCKTP=MASTER,SN=3,DUPSN=1,TRMDES=”TRM 3”; ADD CBTSTRM:BTSID=1,TRMID=5,RCKTP=MASTER,SN=5,DUPSN=2,TRMDES=”TRM 5”; ADD CBTSTRM:BTSID=1,TRMID=0,RCKTP=MASTER,SN=0,DUPSN=0,TRMDES=”TRM 0”; ADD CBTSTRM:BTSID=1,TRMID=2,RCKTP=MASTER,SN=2,DUPSN=1,TRMDES=”TRM 2”; ADD CBTSTRM:BTSID=1,TRMID=4,RCKTP=MASTER,SN=4,DUPSN=2,TRMDES=”TRM 4”;  To specify the sector carrier on certain carrier of the TRM, execute the following commands ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 0,TRMID=1,CPLID=0; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 1,TRMID=1,CPLID=1; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 0,TRMID=3,CPLID=0; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 1,TRMID=3,CPLID=1; ADD 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 0,TRMID=5,CPLID=0; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 1,TRMID=5,CPLID=1; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 2,TRMID=0,CPLID=2; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 3,TRMID=0,CPLID=3; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 2,TRMID=2,CPLID=2; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 3,TRMID=2,CPLID=3; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 2,TRMID=4,CPLID=2; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 3,TRMID=4,CPLID=3; 4.2.8 S666 Configuration The S666 configuration includes three parts:  To configure the channel unit, execute the following commands ADD CBTSCCPM:BTSID=1,BRDID=0,CPLID=0; ADD CBTSCCPM:BTSID=1,BRDID=2,CPLID=1; ADD CBTSCCPM:BTSID=1,BRDID=4,CPLID=2; ADD CBTSCCPM:BTSID=1,BRDID=1,CPLID=3; ADD CBTSCCPM:BTSID=1,BRDID=3,CPLID=4; ADD CBTSCCPM:BTSID=1,BRDID=5,CPLID=5; 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606  Confidentiality level To configure the TRM, execute the following commands ADD CBTSTRM:BTSID=1,TRMID=1,RCKTP=MASTER,SN=1,DUPSN=0,TRMDES=”TRM 1”; ADD CBTSTRM:BTSID=1,TRMID=3,RCKTP=MASTER,SN=3,DUPSN=1,TRMDES=”TRM 3”; ADD CBTSTRM:BTSID=1,TRMID=5,RCKTP=MASTER,SN=5,DUPSN=2,TRMDES=”TRM 5”; ADD CBTSTRM:BTSID=1,TRMID=0,RCKTP=MASTER,SN=0,DUPSN=0,TRMDES=”TRM 0”; ADD CBTSTRM:BTSID=1,TRMID=2,RCKTP=MASTER,SN=2,DUPSN=1,TRMDES=”TRM 2”; ADD CBTSTRM:BTSID=1,TRMID=4,RCKTP=MASTER,SN=4,DUPSN=2,TRMDES=”TRM 4”;  To specify the sector carrier on certain carrier of the TRM, execute the following commands ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 0,TRMID=1,CPLID=0; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 1,TRMID=1,CPLID=1; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 2,TRMID=1,CPLID=2; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 0,TRMID=3,CPLID=0; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level 1,TRMID=3,CPLID=1; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 2,TRMID=3,CPLID=2; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 0,TRMID=5,CPLID=0; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 1,TRMID=5,CPLID=1; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 2,TRMID=5,CPLID=2; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 3,TRMID=0,CPLID=3; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 4,TRMID=0,CPLID=4; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID= 5,TRMID=0,CPLID=5; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 3,TRMID=2,CPLID=3; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 4,TRMID=2,CPLID=4; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=1,CRRID= 5,TRMID=2,CPLID=5; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 3,TRMID=4,CPLID=3; 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 4,TRMID=4,CPLID=4; ADD CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=2,CRRID= 5,TRMID=4,CPLID=5; 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level Chapter Features of Multi-Carrier Power 5.1 Allocation of Multi-Carrier Power The power rating of each carrier of the CMTR is related to the band class and the number of carriers Table 1.1 describes the allocation of multi-carrier power Table 1.1 Allocation of multi-carrier power One or two carriers 450 MHz Three carriers 44 dBm (power rating of each carrier) 42.5 dBm (power rating of each carrier) 800 MHz 44 dBm (power rating of each carrier) 42.5 dBm (power rating of each carrier) 1.9 GHz 43 dBm (power rating of each carrier) 41.5 dBm (power rating of each carrier) 2.1 GHz 43 dBm (power rating of each carrier) 41.5 dBm (power rating of each carrier) 5.2 CMPA Overdrive Threshold The three carrier signals are amplified by the CMPA simultaneously in the multicarrier, BTS, so the CMPA must have good performance If the CMPA often exceeds the threshold, refer to the following Table 1.1 for judgment Table 1.1 CMPA threshold 450 MHz 2005-08-01 CMPA closing CMPA overdrive CMPA Recovery threshold threshold threshold 54 dBm 53 dBm All rights reversed 52 dBm Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level 800 MHz 53.5 dBm 52.5 dBm 51.5 dBm 1.9 GHz 53 dBm 52 dBm 51 dBm 2.1 GHz 53 dBm 52 dBm 51 dBm 5.3 Multi-Carrier Power Tracing When the BTS power fails, you can trace the power on the TELNET to analyze the problem The following presents some examples of tracing multi-carrier power HW CBTS>str infotrace trm 0 ”power” Base band power: carrier0 = N/A, carrier1 = 38.8, carrier2 = 38.8 Digital power: carrier0 = N/A, carrier1 = 38.8, carrier2 = 38.8 Attenuation: carrier0 = 0.0, carrier1 = 0.0, carrier2 = 0.0 Digital power sum = 41.7, HPA (Antenna) power = 41.7, Observe chan power = N/A IF gain adjust = 0.0, RF gain adjust = -4.0, DDU gain adjust = 0.0 Table 1.1 lists the parameter description Table 1.1 Parameter description Parameter Description Base band power Base band power (dBm) Digital power Forward digital field power (dBm) Digital power sum Sum of the forward digital field of the three carriers (dBm) HPA (Antenna) power 2005-08-01 Output power of the amplifier (dBm) All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 DDU gain adjust 2005-08-01 Confidentiality level CDDU gain adjustment (dBm) All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level Chapter Multi-Carrier BTS Calibration For multi-carrier BTS calibration, see Guide to CDMA2000 BTS3606 Calibration 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level Chapter Limitation on Multi-Carrier System 7.1 One Cell of Multi-Carrier BTS Currently, one cell of Multi-carrier cBTS3606 supports three sectors at most rather than six sectors supported by CBTS3612 7.2 Multi-channel Carrier Board The multi-channel carrier board does not support adaptive filter 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level Chapter Fault Location 8.1 Forward Power Abnormal The abnormal BTS power causes a decrease in BTS coverage and weak MS signal To solve this problem, as follows: 1) Check the version of each board inside BTS Make sure that the TRM and CMPA are normal 2) If the condition is permitted, calibration test can be conducted If the calibration fails, test the transmission port power of the CDDU and TRM 3) If the calibration cannot be conducted, trace the BTS transmission power on TELNET after the BTS has ran over 10 minutes If the digital power and amplifier power are normal, the antenna feeder may be connected abnormally Check the antenna standing wave and antenna connection 4) If the amplifier power is abnormal, the problem may be that the amplifier is faulty or the RF cable or the amplifier is not connected well To solve this problem, as follows: a) Make sure that the RF cable is connected well b) Remove and plug the amplifier c) Change the amplifier if the fault is not cleared after the previous two steps 5) If the digital power is abnormal, the problem may be that the TRM is faulty or not connected well Remove and plug the TRM If the fault is not cleared, change the TRM 6) If the fault is not cleared after the previous procedures, consult the BTS maintenance group 8.2 Reverse Channel Abnormal The reverse channel is abnormal due to interference and other faults This causes a low MS transmission power and low successful access rate To solve this problem, as follows: 1) Make sure that the antenna and RF cables are connected well 2) Check the diversity bypass mode of the data configuration The diversity bypass 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level can be configured only when one CDDU is connected to two TRMs, 3) Check the RF receiving mode in the data configuration The multi-carrier is used only in the broadband mode 4) Check whether the alarm of abnormality due to the main and diversity comparison and the alarm of reverse channel exist 5) Make sure that tracing RSSI on the TELNET is normal 6) If the condition is permitted, the reverse calibration test can be conducted 2005-08-01 All rights reversed Page of 33 ... Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level Guide to Multi-Carrier CDMA2000 BTS3606 Key words: 3606, multi-carrier, CMTR, CTRM, CHPA, CMPA Abstract: This guide describes... 33 Guide to Multi-Carrier CDMA2000 BTS3606 2005-08-01 All rights reversed Confidentiality level Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606 Confidentiality level Figure 1.1 Cabinet of multi-carrier. .. level Chapter Multi-Carrier BTS Calibration For multi-carrier BTS calibration, see Guide to CDMA2000 BTS3606 Calibration 2005-08-01 All rights reversed Page of 33 Guide to Multi-Carrier CDMA2000 BTS3606