Document No.NoProduct namecdma2000 BSC

Used by Huawei Network Formulate and Optimization EngineerProduct VersionBSC6600V100R002B03D005

Written byWireless Network Formulate Dept.Document Version1.1

Guide to CDMA2000 1XDual (Multiple) Carrier Networking Prepared byChenLinDate08-14-2003

Reviewed by Date

Reviewed byDate

Approved byDate

Huawei Technologies Co., Ltd.

All Rights Reserved Revised RecordsDateRevised versionDescriptionAuthor

2003-08-141.00Drafted by ChenLin

2003-08-301.1According the module updating, the contents of Guidebook is added that from BSC maintenance Dept. and R&D. WuHao

2003-10-081.2The modification is according to reviews opinion. (Review Flowing Number: N148ChenLin

Catalog 3Chapter 1 Summary

4Chapter 2 Coverage Form

6Chapter 3 Some Problems relative to Multi-carrier Networking

63.1 Replacing process of Mobile Station Frequency

73.2 Description of Mobile Phone Initialization process

73.3 Introduction of SDA Algorithm

83.4Corresponding message for Frequency Selection of CDMA mobile phone service

83.4.1 Sync Message

93.4.2 CDMA Channel list message

103.5Idle handoff and inter-frequency idle handoff

103.6Setting of user idle watching frequency and its character

103.6.1Mobile phone stay resident at the basis coverage carrier

123.6.2The mobile phone is distributed on the Basis and Superimpose Coverage Carrier by HASH algorithm

134Scheme of channel resource configuration

134.4Configuration Scheme of Master-slave Channel

134.5Configuration Scheme of Peer Channel

145Configuration of Superimpose Coverage Edge

176BSC Dual Carrier Networking Data Configuration

176.4Corresponding Dynamic Configuration Command

186.5Each kind of Networking and its configuration

186.5.1Introduction

196.5.2Detailed networking and its configuration

246.5.3BTS Version restriction

257Operation maintenance for BSC Dual Carrier Networking

257.4Some steps for online of dual-carrier mobile

267.5The operation command of maintenance console

307.6Command of Debugging Console

308Optimization for Dual (Multi) Carrier Network

CDMA2000 1X

Guide to Double (Multiple) Carrier Networking

Key words: CDMA, Networking, Channel Configuration, Idle handoff, Inter-frequency Hard Handoff, OptimizationSummary: This guide refers to the Scheme Design, Test and Optimization Practice, and shows a available double (multiple) carrier networking schedule. But this schedule may not be the best, so we hope that the readers can absorb the prime and make flexibly the solve schedule of Huawei CDMA expansion is with more competition. Acronym list: AcronymFull name in English Chinese explanation

BSSBase Station Sub-systemBSCBTS

CCL(M)Cdma Channel List (Message)IS95CDMA()

CDMACode Division Multiple Addressing

ECCLMExtended Cdma Channel List MessageIS2000CDMA

Ec/IoPilot energy accumulated over one PN chip

periodEc to the total power spectral desity

Ioin the received bandwidth 1.23MIo+

ENLExtended Neighbour List

FERFrame Error Rate

GNLGlobal Neighbour List

GSRGloba Service Redirect

IMSIInternational Mobile Subscriber Identity

MRUMaximum Receive Unit

ODUOut Door Unit

PNPseudorandom Noise

PPSMMPeriodical Pilot Strength Measurement Message2000

PRLPreferred Roaming List

RTDRound Trip Delay

RxReceived Power

SDASystem Determination Algorithm

TxTransmit Power

UIMUser Identity Module

Reference list:[1] IS2000-2 IS2000-5[2] The maintenance guide referred by double carrier [3] Operation guide for CBSC double networking.com[4] Network optimization report of GuangXi Unicom Hezhou cdma 1X[5] cdma2000 BSC V100R002B03 Double Band network requirement, BSC HASH algorithm optimization and testing examples of call handling performance optimization.[6] The last scheme about Dual band network, dynamically add and cancel synchronous channel and Mobile HASH problems, and the revision of each module.

Chapter 1 Summary After the signal carrier CDMA wireless network running, optimizing and Cell Splitting Expansion, the network structure becomes reasonable. When the main service coverage range reach about 500 meters (800MHz frequency field), it is not a economical way to adopt the Cell Splitting Technique for local capacity expansion, and because of complexity of the coverage structure between near BS, the expansion will become more and more inefficient. Then, the network will enter into a mature status as follows: 1The distribution of BS is reasonable;2The radio coverage rate of main service zone is reasonable high ( it exceeds 90%);3The running quality of network is high and steadymain running index excels than the stipulated capacity by operator;4The user is increasing steady, and the voice service and data service is increasing well; 5The occupation rate of cell radio source is high in the busy hours of network (in the network, many cell overload. ) Then, it seems that the destination network needs the dual (multi) carrier networking expansion. For the planned Superimpose Carrier, it needs to de adjusted and disposed as follows: 1The spectrum of this carrier should be clean in the destination superimpose coverage range; 2This carrier has got the usage promise from the supervisory department. 3The current Repeater etc. and other autoecious coverage equipments, which can merger the running of the Superimpose Carrier (Including: frequency field, bandwidth and power tolerance etc.)4According to relative criterion , It is not better to use the Primary and Secondary carrier of network as Superimpose Carrier to avoid the roaming problem (because of that the overhead configuration of Superimpose Carrier can be eliminated) ; 5Investigate the arrangement of frequency setting of network operator, which should be prepared for future expansion. 6As the speciality of Huawei CDMA equipment, if the expansion of Superimpose Carrier is used by CDU, which must meet the restriction of CDU to frequency point. Please refer to relative Guidebook

In order to legalize the economy and validity of Superimpose Carrier construction; the following principle must be adopted: 1The Superimpose Coverage Carrier must cover the destination service area efficiently and continuously, namely the overlay of main coverage area (for example, city) should be basically consistent with Basis Coverage Carrier, the ikebana expansion is can not be adopted. 2Theoretically, after the Multi-carrier expanding, it will bring a few of bad purpose. So we must optimize the network before the capacity expansion in order to advance quality.Some remaining quality should be left for the capacity expansion

3When we design expansion schedule, the continuity of edge covering of superimpose carrier should be considered together. For the area that needs the Hard Handoff of inter-frequency (They are mainly Supertrunk Road and key indoor coverage area etc.), we should test and program them.4When we make the preliminary project planningwe should consider the destination network structure and distribution strategy to keep the good service purpose as the network in the status of debugging, optimizing , normal running or fault .This guide book refers to the Scheme Design, Test and Optimize practice of Guangxi Hezhou China Unicom Dual Carrier Network, and shows a feasible dual (multi) carrier network scheme. But this scheme maybe not the best, so we hope that the reader can absorb the distillate flexibly and make the expansion solve of Huawei CDMA is of much more competitive. Chapter 2 Coverage FormThe coverage of a CDMA network is very complex; generally, we can analyze and observe from landscape orientation of Geography Domain and longitudinal of Frequency Domain.

According to current Huawei CDMA products solution status, and from landscape to see, the coverage form can be modeled by following figure:

Figure 1 Plane Coverage Scheme of Modeled Multi Carrier Superimpose

From the Frequency Domain to see, Multi-carrier superimpose scheme also means as follows:

Figure 1 Coverage Scheme of Modeled Multi carrier Superimpose Carrier Frequency From the two figures above, in order to guarantee Multi-carrier superimpose level can work normally, we must lay stress on the items as follows 1The coverage continuity of Macro cell Superimpose Level ;2The coverage continuity of ODU and litter BS indoor Pico Cell (This guidebook does not include it temporally ) ;3Whether we should adopt special abnormal hard handoff for important coverage area (this guidebook version only refers to the HANDDOWN inter-frequency hard handoff that triggered by Ec/Io and RTD).Chapter 3 Some Problems relative to Multi-carrier Networking 3.1 Replacing process of Mobile Station FrequencySix statuses for the frequency replacing of terminal:

1During initialization, the frequency selection is according to MRU/PRL/ Sync Channel Messages;2In Null status, global redirect of HASH,GSP message is according to CCL message.

3For CDMA2000 mobile phone, the inter-frequency can be searched by the inter-frequency Neighbour List that is along with ENL,GNL message.

4Call initial, the hard assignment of call inter-frequency is according to algorithm; 5During the call process, the inter-frequency Hard Handoff can be triggered according to trigger conditionsEc/Io, RTD, PBU etc.;6Some non-standard roaming inter-frequency searching system mechanism that are designed by operator or manufacturer (for example, Korea SKT mobile phone etc.) From the problems conclusion above, it has exceeded the range of this guide book, and because of some non-standard and private application process, which make the replace process much more complex, the mobile phone action much more difficult to been understood, and detailed setting and networking adaptability all will be restricted by the process. Therefore, the engineer must set and test detailed destination network in order to realize the networking purpose at most.3.2 Description of Mobile Phone Initialization process

Figure 1 a typical example for mobile phone initialization processThe mobile phone initialization process includes two parts: system signaling capture and channel selection. This process mainly includes the standardization process of IS95/2000, they are: according to MRU to synchronize carrier, search strongest PN, read and get Sync Channel Message, read and get Paging Channel Message; and the HASH operation is according to the CDMA channel list message (CCLM) and extended CDMA channel list message of IS2000 (ECCLM) and the IMSI of mobile station to insure the mobile station stay resident for the frequency channel idle at null status. At the same time, it also includes the system that is balanced user load, and the frequency replace of service redirect that is caused by maintenance operationit is specialized by GSP message). Generally, these operations need the cooperation of paging strategy from the system. 3.3 Introduction of SDA Algorithm In order to realize the system roaming agreement of operators, the initial process of mobile phone also includes the stipulated process from operator and manufacturer, the process mainly includes the following data tables and corresponding mobile phone action: 1The basis initial search frequency point of the system ( as the stipulation of agreement: the 800MHz has two pairs of frequency point : 283691384777But there are some other frequency point that belongs to special operator from special nations ( for example, Korea SKT). 2For the history usage frequency list and MRU, it is a working frequency list established by the usage sequence before, from the mobile phone action of different destination network to see, the priority of this table may not be according to the principle of The latest used one is scanned firstly.

3Priority Roaming List PRLthis table includes the available system SID/NID and priority bit. For the detailed table, it is formed according to the agreement of relative operators, mutually store the peer SID and priority bit into the PRL of himself. For the network access mobile phone of China Unicom, this table is stored in UIM card, at the same time, according to the agreement technologist that is supplied by Qualcomm; the short message can be used to update PRL. Because of the standardization of CDMA is low, therefore, non-standardization of SDA has important impaction on the compatibility of mobile phone and network. 3.4 Corresponding message for Frequency Selection of CDMA mobile phone service

Because of BSS of Huawei CDMA, it is pure cdma 1x system, at the side of voice service, the Frequency Allocation of IS95 and IS 2000 users should be considered together, therefore, only the smallest frequency to choose the message concentration (Sync Channle Message and CDMA Channel List message), which can meet the requirements of allocation frequency of users. The following is the configuration of these messages:3.4.1 Sync MessageIn the Sync Message, there are two fields: CDMA_FREQ: IS95/2000 Mobile phone all can realize the fields,EXT_CDMA_FREQonly the IS2000 mobile phone can realize the filed, and it take priority to be executed. Example of setting1

After the mobile phone capturing the Sync message, mobile phone 95 continues to capture the paging channel, whose frequency point is extended CDMA channel number. If the 201 is not configured with paging channel, or the mobile phone is not preferred to stay resident at 201, so both of the fields can be set to 283 in the 201 Sync Channel:MOD CCH: CN=2304,SCTID=0,CRRID=10,CDMABSN=283,EXTCDMABSN=283;There is only 283 frequency point in the Sync message of carrier (2304010. Example of setting2

It is hoped that the CDMA channel number is set to 283 and the Extended CDMA channel number is set to 283, which are 283 paging channel of mobile phone 95 and 201 paging channel of 2000 mobile phone. MOD SCCH: CN=2304,SCTID=0,CRRID=10,CDMABSN=283,EXTCDMABSN=201;MOD SCCH: CN=2304,SCTID=0,CRRID=11,CDMABSN=283,EXTCDMABSN=201;The CDMA channel of setting Sync Message2304010 and11 is 283, and extended CDMA channel is 201

NoteThe carrier number of 283 frequency point is 11, Cell number is 2304, Sector number is 0, if the sync channel message is not intended to be used, the gain of Sync Message can be set to 0, or the following command can be used to cancel the Sync channel (BTS version R002D004 supports the operation); RMV SYNCH: CN=2304,SCTID=0,CRRID=10;3.4.2 CDMA Channel list message CDMA Channel List Message CCLMdefines the frequency that can be watched by IS95/2000 Mobile phone, and it is mainly used for the mobile phone to choose frequency by HASH algorithm. Example of setting3

If it is supposed that the mobile phone stay resident283, and send calling on 283, only the 283 frequency point is sent on the CCLM, namely the 201 frequency point is not sent on CCLM and ECCLM. MOD CDMACH: CN=2304,SCTID=0,CRRID=10,CCLMFLG=NO, CCLMFLG=NO;And the 201 frequency point is set not to be sent at CCLM and ECCLM of2304-0-10, 11 and only includes 283. Example of setting 4

If it is supposed that the 95 mobile phone stay resident at the 283 and 201, the 2000 mobile phone also stay resident283 and 201, then the 283, 201 frequency point needs to be sent on CCLM ( the 283 and 201 frequency point can be sent on ECCLM), which can be sent by maintenance console. Then the switch of sending ECCLM should be opened, and at the same time it is shown that the ECCLM has been sent: MOD ECCLM: SUBITEM=SCT_CLASS, CN=2304, SCTID=0, RCQPCHSELINCL=NO, EXTCDMACHLST=YES;MOD CDMACH: CN=2304, SCTID=0, CRRID=10, CCLMFLG=YES, ECCLMFLG=YES;MOD CDMACH: CN=2304, SCTID=0, CRRID=11, CCLMFLG=YES, ECCLMFLG=YES;3.5 Idle handoff and inter-frequency idle handoff The idle handoff is very important for dual-carrier networking, and it will be very evident during using the HASH algorithm to distribute idle mobile phone to watching channels. Because the mobile phone the coverage edge of superimpose coverage carrier is very different from the coverage edge of corresponding sector of basis coverage; (Generally, the coverage distance of superimpose coverage carrier is far), in this way, two problems will be generated, firstly, the mobile phone that HASH to superimpose coverage carrier will occupy the badly covered carrier and it will lead to the low service quality (including conversation and paging); secondly, If the abnormal hard handoff has been configured, dropping calls will be increased that is caused by triggering the hard handoff. For the mobile phone of IS95/2000, the agreement agrees to support idle handoff and abnormal idle handoff. When the adjacent cell list is drafted, the field of NGHBR_CONFIG should be set to 2at the same time the field of NGHBR_BAND and NGHBR_FREQ should be set correctly in ENLM.Notes: this method is not used in pilot, so it is not confirmed whether the compatibility is with problem.For the dual (Multiple) networking, the adjacent cell will exert full usage by using the HASH algorithm to distribute idle mobile phones. But for the IS95 mobile phone, the length of neighbor cell list is very important, and the important adjacent cell list should not be put behind 20 bits. 3.6 Setting of user idle watching frequency and its character Generally, the agreement of IS95/2000 supports two kinds of idle user watching method, and both of them has its character.3.6.1 Mobile phone stay resident at the basis coverage carrierCharacter of this method:1It is only need to configure all of overhead channel on basis coverage carrier, which is good for superimpose channel forward power. 2When the overload of network is not high, the mobile phone voice service only use the basis coverage carrier, and the service quality is comparative good.

3When the overload of network is not high, the mobile phone data service only use the superimpose coverage carrier. 4The idle handoff is avoided, which is easy to set the hard handoff of edge abnormal frequency.

5The overload intensity of paging and access channel is increased, which is helpful to the overload of channel.6If it is the pilot frequency beacon , the requirements of channel configuration for pilot frequency beacon is low. (Only the frequency channel is needed). 7When it is high overload, the high rate of hard distribution will appear and it impact on the quality of network. 8Each level of network needs good coverage consistency, and also needs high requirements of maintenance. 9It can get high capacity of expansion, but it can require the algorithm of overload equalization highly. Setting of example 5

There are some steps for setting the status of work. 1CCLM is set to only send Basis Coverage Carrier (283) and Superimpose Coverage Carrier (201, namely Carrier 10).MOD CDMACH: CN=2304, SCTID=0, CRRID=10, CCLMFLG=NO;2Basis Carrier is set to take priority to accept callings, when the basis carrier load exceeds the threshold (90%), the overflow callings will use the superimpose coverage carrier. MOD CDMACH: CN=2304, SCTID=0, CRRID=10, PLTPL=2;3Reduce the priority of 201 frequency point2304010 to 2, and the priority of 283 is defaulted to 1, (highest), the smaller the value is , the priority is higher. MOD CHINF: CN=2304, SCTID=0, CRRID=11, CASNVCVLV=90;The hard provisioning is modified to 90%.

4Cancel the paging channel that is on the superimpose (201) carrier.RMV PCH: CN=2304, SCTID=0, CRRID=10;5Cancel the sync channel that is on the superimpose (201) carrier. RMV SYNCH: CN=2304, SCTID=0, CRRID=10; Notes: Cancel the sync channel message that lead to some type of mobile phone abnormal initialization, but a experience is needed before the operation, or inquire the department of testing or maintenance to confirm whether the mobile is with compatibility. At present, it is said that the Diverse Mobile phone of China Unicom Card is with compatibility. 6Open the switch of hard Provisioning. MOD CELL: CN=2304, SCTID=0, CASN=YES;3.6.2 The mobile phone is distributed on the Basis and Superimpose Coverage Carrier by HASH algorithmThe character of the method:The overhead channels are distributed full at basis and superimpose coverage carrier. Each frequency is running dependently basically, so the requirement of maintenance is on the low side;3The hard handoff is configured from superimpose frequency point to basis frequency point, which will lead to the service quality on the edge. 4Edge hard handoff is set and the probability of trigger handoff will be high;5The system paging strategy needs high requirements;6The GSP is needed to equalize the upload of each carrier;7The inter-frequency neighbor cell list is used to solve the problem of inter-frequency handoff of superimpose coverage edge. 8This method is suitable for mini network and the coverage consistency of each level network being destroyed. Example of setting 6

If it is supposed that the 95 mobile phone watching at 282, 201, and the 2000 mobile phone also watching at 283, 201, the 283 and 201 frequency point is needed to be sent in CCLM, this disposal can be set by the maintenance console. MOD CDMACH: CN=2304, SCTID=0, CRRID=10, CCLMFLG=YES, ECCLMFLG=NO;

MOD CDMACH: CN=2304, SCTID=0, CRRID=11, CCLMFLG=YES, ECCLMFLG=NO; Notes: Before using the HASH algorithm to distribute the user watching, it is needed to be confirmed that whether corresponding paging and sync channel are working (including that whether this channel is canceled or the channel gain is normal.) otherwise, the setting can not realize the distribution of users, please pay more attention to that whether it is necessary to apply it.

4 Scheme of channel resource configuration The scheme of channel resource configuration is a special problem of Multi Carrier Networking, for a destination network, how to show up the effect of expansion, it lies on the scheme of channel resource configuration. Generally, there are two kind of scheme of channel resource configuration.4.4 Configuration Scheme of Master-slave Channel It is applied on the mobile phone only stay resident at the Basis Coverage Frequency Point, and the channel configuration scheme is as follows:

1 Configuration Scheme of Master-slave channel Speciality: 1Only the basic coverage level is configured with PCH and SyncCHSuperimpose coverage level can be configured with SyncCH, it also can increase its compatibility

2Basic Coverage level takes priority than bearer voice service, the superimpose coverage level takes priority than bearer data service.3Mitigate the idle handoff of mobile phone. 4The front capacity of Carrier 2 is bigger than that of Carrier 1. 5If PBU is adopted, it only needs PILOT CH.6paging and access channel load is high. 4.5 Configuration Scheme of Peer ChannelIt is applied on the mobile phone staying resident at each level carrier by HASH algorithm.

2 Configuration Scheme of Peer ChannelSpeciality:1Each coverage level adopts the same overhead channel configuration.2Each coverage level loads equally, but marquee network needs the support of GSP message. 3The mobile phone is still with the problem of idle handoff.4The repeated configured overhead waste the front power of this system. 5Paging strategy is a little complex. 5 Configuration of Superimpose Coverage EdgeFor a specialized network, the superimpose coverage level is limited. Therefore, when the users in communication moves to the edge of superimpose coverage level, it needs to inter-frequency hard handoff to retrieve the potential dropping call. Huawei cdma BSS system support following inter-frequency hard handoff:1Inter-frequency HANDDOWN hard handoff, its trigger condition is Ec/Io and RTD threshold, which can support 6 destination handoff. 2Inter-frequency direct hard handoff, its trigger condition is Ec/lo threshold, which can support 6 destination handoff. 3Pilot frequency beacon assisting handoff, breed often thinks of that it has high hit ratio of handoff, it is mainly used for key handoff edge and indoor coverage system that is with high service quality, because of that it needs accessory pilot frequency beacon equipment, so the cost is much high.4IS2000 Mobile phone assist to search hard handoff, and because of the adoption of inter-frequency searching, the handoff hit ratio increase highly. 5The other hard handoff. For the application of dual-carrier networking, a little applied inter-frequency hard handoff scheme is the inter-frequency HANDDOWN hard handoff. Correct adoption of this handoff can bring 95% hit ratio of this abnormal hard handoff. Then we lay stress on discuss the configuration of this inter-frequency hard handoff. The following content is concluded for setting a inter-frequency hard handoff:Select source cell of handoff. Generally the common method for selecting source cell is rout test, it needs to test the PN distribution of rout that needs handoff and select PN with high superimpose coverage ratio as the handoff source cell. 2Select handoff destination cell. It is similar to above, the frequency of PN coverage can be sequenced according to the route test of Basis Coverage Level, generally 4-5 PN with high probability are selected out to be used as destination cell. 3Set the threshold of handoff trigger level Ec/lo. In order to ensure high probability of handoff trigger and the hit ratio of handoff, generally, it is better to use the higher Ec/lo threshold to trigger hard handoff, its appropriate range is -3 -8dB, which needs the route test to validate. 4The RTD setting value and RTD setting value can be route tested directly or evaluated indirectly. The detailed evaluation is as follows:RTD = 4 + D / 244

Thereinto: RTD is the threshold of round-trip delay:

4 is the delayed experiential value brought in by equipments:

D is the distance between designed handoff edge and the handoff source cell (Unit: meter)Notes: In current BTS version, the value of RTD reading occupy a fixed scale, therefore, in fact some handoff will be triggered at some sites without needing trigger. Setting of example (7)1The PMRO message can be used to control the Mobile phone 2000t to report PPSMM. For Mobile phone 95, the periodically delivered PMRO can make it periodically report PSMM. The switch needs to be opened: pilot frequency soft parameter, namely No.14 soft parameter of RRM.MOD SOFTPARA: SRVMN=RRM, PRMNO=14, PRMV="0x01";Open the switch of mobile phone periodically reporting the Pilot Frequency test reports. 2The smallest threshold default of EC/LO is 25 received by Pilot Frequency in PMRO, it will not trigger the mobile phone to report PPSMM under good conditions, and the value can be changed to 31, namely cancel its usage. MOD PMRO: CN=2304, SCTID=0, CRRID=10, MINECIOTHRS=31;3Set the absolute threshold of EC/LO of HANDDOWN. This threshold should be confirmed after reasonable handoff and according to actual route test report. MOD HNDDWN: CN=2304, SCTID=0, CRRID=10, ABSTHRS=10;Modify the absolute threshold of EC/O of HANDDOWN hard handoff to 5dB

4Set the biggest Loop Delay threshold of HANDDOWN hard handoff. This threshold needs many times route test. Then note the average circs of RTD of Handoff Band, for example, 90% circs of RTD near to a value, then the value can be as the threshold. MOD HNDDWN: CN=2304, SCTID=0, CRRID=10, MAXRTD=10;Modify the absolute threshold of RTD of HANDDOWN to 10. 5Configure the handoff destination. Which carrier the mobile phone is handoff to is decided by the route test result and neighbor relation of geography location, the B03 and next BSC version support many destination. For example, the 293 frequency point is handoff from Post Office 0 section 201 to 1,2 section of shopping center. ADD HNDDWNTRG: CDMACH="61-2304-0-201", NBRCDMACHS="85-2312-1-283";

ADD HNDDWNTRG: CDMACH="61-2304-0-201", NBRCDMACHS="85-2312-2-283";6Open the HANDDOWN of Source Test Carrier, the carrier of all of the Activation Set

Open the HANDDOWN switch of Source Test Carrier, it is best to source test the carrier of all of active collection. MOD PHOALG: CN=2304, SCTID=0, CRRID=10, HD=ON;5Problem of Search Window . Generally, before the mobile phone is handoff, the Cell PN delay of signal carrier is difficult to be evaluated (especially the IS95 mobile phone does not support the function of inter-frequency searching), therefore, the Search Window with big size is brought into the Handoff Destination Message. There is a much better scheme to bring the SRCH_WIN_N of Basis Coverage Level into SRCH_WIN_A of HDM message, and resume it to Active Set Search Window through the message of In Traffic System Parameter after the handoff. Notes: The BSC software of B03 version doesnt bring corresponding parameter field of Search Include, this problem can be solved by increasing source cell SRCH_WIN-A. Generally, the value of SRCH_WIN_A 2-3 times than RTD threshold can lead to high hit ratio of handoff. 6 BSC Dual Carrier Networking Data ConfigurationUnder the dual carrier networking, the stay resident frequency can be changed by data configuration; the corresponding software version of configuration command introduced as follows is CBSC6600 V100R002B03D005 and next version.6.4 Corresponding Dynamic Configuration CommandThe following is the description of Dynamic Configuration Command, which only introduce how to use the command in documents. For the detailed instruction, usage and precaution; please refer to Help Document of Maintenance console. 1MOD ECCLMThis command is used to change whether a sector sends ECCLM message and used as the mark of ECCLM whether the RC and QPCH selection is included. Please refer to LST SYSMSGPARA command to get corresponding inquire command. 2MOD CDMACHThis command is used to modify whether a carrier is included in CCLM/CCLM message, please refer to LST CDMACH command to get corresponding information inquire.

3ADD PCHThis command is used to add paging channel for a carrier. Please refer to LSTCMFINF command to get corresponding paging channel information. 4RMV PCHThis command is used to cancel the paging channel of a carrier, please refer to LST CMFINF command to get corresponding paging channel information inquire. 5ADD SYNCHThis command is used to add Sync Channel for a carrier, each carrier only has a Sync Channel at most, please refer to LST CMFINE to get corresponding Sync Channel information. 6RMV SYNCHIt is used to cancel the Sync Channel of a carrier, please refer to LSTCMFINF to get corresponding Sync Channel Inquire.7MOD SCHMIt is used to modify the CDMA channel number and extended CDMA channel Number, please refer to LST SYSMSGPARA command to get corresponding configuration inquire of Sync Channel message.The following command is not used directly in the configuration operation of document, but they can supply the function of query for corresponding configuration result: 1LST SYSMSGPARAThis command is used to inquire the configuration of system message, what information to be selected can be selected in inquire information. The potential to be used inquire information are:1System message control parameter: It is used to inquire whether a section carrier send ECCLM message. Because of that at present the whether send ECCLM message is sector level-1 parameter, therefore, the mark of different carrier must be the same in the same sector. (Because of the paging, the ECCLM can not be configured.) 2Sync Channel Message; It is used to inquire the configuration parameter of Sync Channel; this text is only used to inquire CDMA Channel Number and Extended Channel Number. 3Extended CDMA Channel List Message: It Is used to inquire the configuration of extended CDMA channel List Message, this text is only used to inquire whether the RC and QPCH selection is included.2LST CDMACHIt is used to inquire configuration information of frequency point; this text is only used to inquire whether a carrier is sent in the message of CCLM or ECCLM.3LST CMFINFIt is used to inquire some configuration information of Paging Channel and Sync Channel, this text mainly includes two kinds of inquire information:1Paging Channel Parameter: It is used to inquire the number of Paging Channel, if a carrier is not with query result; it means that this carrier is not configured with Paging Channel.2Sync Channel Parameter: It is used to inquire Sync Channel Configuration and corresponding parameter. If a carrier is not with query result, it means this carrier is not configured with Sync Channel. 6.5 Each kind of Networking and its configuration6.5.1 IntroductionThe following networking only supply several common network requirements, the other potential networking requirements is not described here. The Dynamic configuration of each networking is a recommended configuration, but not a unique available configuration. This text doesn't include the description of all of available configuration. Only one sector example is given for following configuration description. Supposed that the Cell ID of a sector is 6, and the ID of sector itself is 0, this sector is configured with two carrier, and the carrier identification are separately 10,11, and their corresponding frequency point is 283 and 201. If there actual configuration is not consistent with the configuration, please modify it according to actual circs.6.5.2 Detailed networking and its configurationThe first step of operation process is that each carrier has been configured with Sync Channel, and at least configured with a Paging channel. If the fact is different from it, the detailed step also is different. If you do not know how to configure at detailed circs, you can resume to the default circs by command, If you don not know how to configure, you can renew the configuration to default status, and then according to following steps to configure. In the following description, the description in quotation marks means the parameter name or parameter value. If a command is a little strange for you, please refer to the HELP of maintenance console. If you want to check up the configuration result, please use the query command in the front of the text. It is better to confirm whether the configuration is correct or not after the dynamic configuration. During the configuration process, maybe the Carrier Block will lead to dropping calling of mobile phone, therefore it is better to change configuration at low traffic measurement. 6.5.2.1 Mobile Phone 95 and Mobile 2000 Mobile Phone all stay resistent at 283 and 201 frequency point according to HASH algorithm. This configuration is a little simply and can keep balance at the statistic of loads between carriers. 6.5.2.1.1 Configuration Thinking WayIn order to ensure the Mobile 95 and Mobile 2000 according to HASH algorithm to stay resident at any frequency point, two frequency point can be carried in both CCLM and ECCLM, in this way the Mobile phone can select frequency point according to HASH algorithm. Notes: This configuration is fit for the early time of Multi-carrier expansion, and used to verify coverage or network, but if the hard handoff is used at superimpose coverage, the mobile phone distribution algorism will lead to too much trigger of hard handoff and impact on the quality of network. 6.5.2.1.2 Operation steps1According to MOD ECCLMCommand to modify the sector parameter, and set the whether the RC and QPCH selection includes mark to NO (not include). And Set the sending mark of extended CDMA channel list message to YES (sending). 2According to the command of MOD CDMACH to set the Whether to send in CCLM and Whether to send in ECCLM of two carriers to YES. 6.5.2.1.3 Executer Script MOD ECCLM: SUBITEM=SCT_CLASS, CN=6, SCTID=0, RCQPCHSELINCL=NO, EXTCDMACHLST=YES;

MOD CDMACH: CN=6, SCTID=0, CRRID=10, CCLMFLG=YES, ECCLMFLG=YES;

MOD CDMACH: CN=6, SCTID=0, CRRID=11, CCLMFLG=YES, ECCLMFLG=YES;

6.5.2.1.4 Other instructionsThe networking does not need special requirements for configuration of the CDMA Channel Number and Extended CDMA Channel of Sync Channel Message, normal status carrier is Ok.6.5.2.2 Mobile phone 95 stay resident at 283 frequency point, Mobile Phone 2000 stay resident at 201 frequecny pointThis method is used for expansion of 2000 BS at old IS-95 BS (It is not better to be adopted).6.5.2.2.1 Configuration thinking way In order to ensure the Mobile Phone 95 and Mobile Phone 2000 to stay resident at different frequency point, 283 frequency point is carried in the CCLM and 201 frequency point is carried in ECCLM, in this way different type Mobile Phone can operate different HASH according to different message and stay resident at different frequency point.6.5.2.2.2 Operation Steps 1According to the command of MOD ECCLM to modify Sector parameter, and set the whether the RC and QPCH selection include mark to NO (do not include), and set the sending mark of extended CDMA channel list message to YES (sending). 2According to the command of MOD CDMA to set the 283 frequency point Whether to send in CCLM to YES, but set the whether to send in ECCLM to NO; and set the 201 frequency point whether to send in CCLM to NO, but set the Whether to send in ECCLM to YES.

3According to the command of NOD SCHM to set the CDMA Channel Number of Sync Channel Message of two frequency to 283, and set the extended CDMA channel to 201.6.5.2.2.3 Executive scriptMOD ECCLM: SUBITEM=SCT_CLASS, CN=6, SCTID=0, RCQPCHSELINCL=NO, EXTCDMACHLST=YES;

MOD CDMACH: CN=6, SCTID=0, CRRID=10, CCLMFLG=YES, ECCLMFLG=NO;

MOD CDMACH: CN=6, SCTID=0, CRRID=11, CCLMFLG=NO, ECCLMFLG=YES;

MOD SCHM: CN=6, SCTID=0, CRRID=10, CDMABSN=283, EXTCDMABSN=201;MOD SCHM: CN=6, SCTID=0, CRRID=11, CDMABSN=283, EXTCDMABSN=201;6.5.2.2.4 Other instructionThis networking is not necessary to be configured for CDMA Channel Number and Extended CDMA Channel Number of Sync Channel Message. But the configuration above can reduce the network searching time. 6.5.2.3 Mobile phone 95 stay residant at 283 frequency piont, and Mobile Phon

6.5.2.4 2000 stay residant at 283 or 201 frequency point acccording to HASH algorithmThis method is used for expansion of 2000 BS at old IS-95 BS (It is not better to be adopted).6.5.2.4.1 Configuration thinking way In order to ensure mobile phone 95 and Mobile Phone 2000 stay resident at different frequency point separately, the CCLM only carries 283 frequency point, and ECCLM only carries 283 or 201 frequency point. In this way different type Mobile Phone execute different HASH according to different message to keep staying resident at different frequency point. 6.5.2.4.2 Operation steps1According to command of MOD ECCLM to modify sector parameter and set the whether RC and QPCH selection includes mark to NO (do not include) and set the sending mark of extended CDMA channel list message to YES (sending). 2According to the command of MOD CDMA to set the 283 frequency point Whether to send in CCLM to YES, but set the whether to send in ECCLM to YES; and set the 201 frequency point whether to send in CCLM to NO, but set the Whether to send in ECCLM to YES.3According to the command of NOD SCHM to set the CDMA Channel Number of Sync Channel Message of two frequency to 283. 6.5.2.4.3 Execution Script MOD ECCLM: SUBITEM=SCT_CLASS, CN=6, SCTID=0, RCQPCHSELINCL=NO, EXTCDMACHLST=YES;

MOD CDMACH: CN=6, SCTID=0, CRRID=10, CCLMFLG=YES, ECCLMFLG=YES;

MOD CDMACH: CN=6, SCTID=0, CRRID=11, CCLMFLG=NO, ECCLMFLG=YES;

MOD SCHM: CN=6, SCTID=0, CRRID=10, CDMABSN=283;MOD SCHM: CN=6, SCTID=0, CRRID=11, CDMABSN=283;6.5.2.4.4 Other instructionThe networking does not need special requirements for configuration of the CDMA Channel Number and Extended CDMA Channel of Sync Channel Message, normal status carrier is Ok.6.5.2.5 Mobile Phone 95 and Mobile Phone 2000 all stay resident at 283 frequency point, and both of frequency point all configured with paging channleNotes: This method can be used for the experiment of Mobile Phone compatibility.6.5.2.5.1 Configuration thinking wayIn order to ensure the Mobile Phone 95 and Mobile Phone 2000 to stay resident at the same signal frequency point (283), the CCLM and ECCLM message only carry 283 Frequency point. In this way there is only one 283 Frequency point in the CCLM and ECCLM message, the Mobile Phone 95 and Mobile Phone 2000 all stay resident at 283 frequency point. 6.5.2.5.2 Operation steps 1According to command of MOD ECCLM to modify sector parameter and set the whether RC and QPCH selection includes mark to NO (do not include) and set the sending mark of extended CDMA channel list message to YES (sending).2According to the command of MOD CDMA to set the 283 frequency point Whether to send in CCLM to YES, but set the whether to send in ECCLM to YES; and set the 201 frequency point whether to send in CCLM to NO, but set the Whether to send in ECCLM to YES. 3According to the command of NOD SCHM to set the CDMA Channel Number of Sync Channel Message of two frequency to 283. 6.5.2.5.3 Execution scriptMOD ECCLM: SUBITEM=SCT_CLASS, CN=6, SCTID=0, RCQPCHSELINCL=NO, EXTCDMACHLST=YES;

MOD CDMACH: CN=6, SCTID=0, CRRID=10, CCLMFLG=YES, ECCLMFLG=YES;

MOD CDMACH: CN=6, SCTID=0, CRRID=11, CCLMFLG=NO, ECCLMFLG=NO;

MOD SCHM: CN=6, SCTID=0, CRRID=10, CDMABSN=283, EXTCDMABSN=283;MOD SCHM: CN=6, SCTID=0, CRRID=11, CDMABSN=283, EXTCDMABSN=283;6.5.2.5.4 Other instruction This networking is not necessary to be configured for CDMA Channel Number and Extended CDMA Channel Number of Sync Channel Message. But the configuration above can reduce the network searching time. 6.5.2.6 Mobile phone 95 and Mobile Phone 2000 all stay resident at 283 frequency point and 201 frequency point is wihtout configuring paging channel This method can save power and code source.6.5.2.6.1 Configuration thinking wayBecause of that the 201 is not configured with paging channel, therefore the Mobile phone will not stay resident at 201 frequency point, but it must be configured with Sync Channel message, otherwise it will lead to the power of Mobile phone is not steady. 6.5.2.6.2 Operation steps1According to command of MOD ECCLM to modify sector parameter and set the whether RC and QPCH selection includes mark to NO (do not include) and set the sending mark of extended CDMA channel list message to YES (sending). 2According to the command of RMV PCH to cancel all of the paging channel of 201 frequency point; (After canceling the paging channel, the speed paging channel will be cancelled automatically. All of the paging channel must be cancelled, the following script only aims at canceling a paging channel, if paging channel number is not 1, the format of RMV PCH command will be changed, and a parameter of Batch Delete number will be added.)3According to the command of MOD CDMACH to set the whether to send in CCLM of carrier 283 to YES, and set the Whether to send in ECCLM to YES; it is not necessary to set the 201 frequency point. 4According to the command of MOD SCHM to set the CDMA Channel number and Extended CDMA Channel number of Sync Channel Message to 283.6.5.2.6.3 Execution script MOD ECCLM: SUBITEM=SCT_CLASS, CN=6, SCTID=0, RCQPCHSELINCL=NO, EXTCDMACHLST=YES;

RMV PCH: CN=6, SCTID=0, CRRID=11;MOD CDMACH: CN=6, SCTID=0, CRRID=10, CCLMFLG=YES, ECCLMFLG=YES;

MOD SCHM: CN=6, SCTID=0, CRRID=10, CDMABSN=283, EXTCDMABSN=283;MOD SCHM: CN=6, SCTID=0, CRRID=11, CDMABSN=283, EXTCDMABSN=283;6.5.2.6.4 Other instruction This networking is obligatory for the CDMA Channel Number and Extended CDMA Channel number of Sync Channel message of two frequency point, otherwise it will lead to the mobile phone fails to be online. This networking is limited a little for the BTS version, please refer to partial instruction of BTS version restriction. 6.5.2.7 Mobile Phone 95 and Mobile Phone 2000 all stay resident at 283 and 201 Frequency point and without configuing with Paging Channel and Sync Channel This configuration at most saves the power of superimpose carrier and the code source, but it is also easy to occur compatibility. 6.5.2.7.1 Configuration thinking wayBecause of that the 201 is not configuring with paging channel and Sync Channel, therefore the mobile phone will not stay resident at 201 frequency point. But the master-slave frequency point of mobile phone must be configured with 283 frequency point, so the 283 frequency point is advised to be configured. 6.5.2.7.2 Operation steps1According to command of MOD ECCLM to modify sector parameter and set the whether RC and QPCH selection includes mark to NO (do not include) and set the sending mark of extended CDMA channel list message to YES (sending). 2According to the command of RMV SYNH to cancel the Sync Channel of 201 frequency point; (After canceling the Sync Channel, all of the speed paging channel will be cancelled automatically). 3According to the command of MOD CDMACH to set the 283 frequency point Whether to send in CCLM to YES, and set the Whether to send in ECCLM to YES; It is not necessary to configure corresponding parameter of 201 frequency point.4According to the command of MOD SCHM to set the CDMA Channel Number and Extended CDMA Channel of Sync Channel Message of two frequency point to 283; It is not necessary to configure corresponding parameter of 201 frequency point.6.5.2.7.3 Execution script MOD ECCLM: SUBITEM=SCT_CLASS, CN=6, SCTID=0, RCQPCHSELINCL=NO, EXTCDMACHLST=YES;

RMV SYNCH: CN=6, SCTID=0, CRRID=11;MOD CDMACH: CN=6, SCTID=0, CRRID=10, CCLMFLG=YES, ECCLMFLG=YES;

MOD SCHM: CN=6, SCTID=0, CRRID=10, CDMABSN=283, EXTCDMABSN=283;6.5.2.7.4 Other instruction This networking is obligatory for CDMA Channel Number and Extended CDMA Channel number of Sync Channel message of 283 frequency point, otherwise it will lead to the mobile phone failed to online. 6.5.3 BTS Version restriction Regarding to the several networking above, except that the fifth networking (201 is configured with 201 Sync Channel but without Paging Channel.) is limited to the BTS version, the other networking does not have special requires for BTS version. Regarding to only configuring Sync Channel but without Paging Channel, the restriction for BET version is as follows: After canceling all of paging Channel of some sector carrier, there are pilot carrier and Sync Channel in the carrier, the system updating messages it will send the indication of Sync Channel message updating. At this moment, if the corresponding source of the sector carrier on BTS has reset (it maybe the carrier board of this carrier reset, or the BCP board of this carrier reset), BTS will initial the ACC_MSG_CONFIG_SEQ of this sector carrier to null value. Because if the R001B03D004 in front of R002B02D004 Version and the BTS3601 in front of R001B03D004 version judged that the ACC_MSG_CONFIG_SEQ is different from the ACC_MSG_CONFIG_SEQ delivered from BSC, they will thought of that it is obligatory to update access parameter message. But at this moment there is no paging channel, the system message updating will not take with any system overhead message that sent by any paging channel, therefore the system updating message of this carrier will failed. Then if we want to update system message successfully, firstly we only need to add paging channel to make a completed system message updating, then cancel the paging channel necessarily, after that the system message updating will be successful. But the BTS3612 of R002B02D00 Version and BTS3601C of R001B03D004 Version all do not with this problem. 7 Operation maintenance for BSC Dual Carrier Networking7.4 Some steps for online of dual-carrier mobile 1 Step off Sync Channel The default configuration of the CDMA Channel Number and Extended CDMA Channel Number of Sync Channel Message is the carrier point of their local carrier. It is supposed that the mobile stay resident at 283 only though CCLM and ECCLM, after the mobile phone handing up that make call at 201, which need to capture 201 paging channel, then it will transfer to 283 paging channel, but at this moment searching networking will occur on the mobile phone.

2Idle status The mobile phone will account the service frequency point by HASH algorithm and according to the received frequency point that is included in CCLM or ECCLM. If the ECCLM is not sent and the 283 is only sent in CCLM, then all of mobile phone will HASH to the paging channel of 283 to receive system message, and it will stay resident at 283 frequency point and rise calling at 283. 3Initial calling of mobile phone BSC receive the call from Mobile phone, if the switch of hard assignment is open, the hard assignment can be according to the priority of carrier and current load of carrier. For example, set the priority of the 283 frequency point to 1 and the 201 frequency point to 2 (the smaller number is, the bigger the priority is), and the threshold of setting 283 and 201 hard assignment is 80%, then the BSC will take priority at 283. If the load of 283 is bigger than 80%, the channel assignment will occur between 201 and 283. If the priority of 283 and 201 all are set to 1, then the BSC will select a carrier with light load to distribute channel.4Handoff After the BSC receive PSMM or PPSMM, if it is found that the EC/LO of soft handoff destination is less than a threshold, it will trigger some hard handoff. For example, open the switch of HANDDOWN, which can not do the hard Handoff that assisted by Mobile phone, (for example, the hard handoff switch assisted by Mobile phone is closed, the mobile phone version is 6, or it is configured without inter-frequency neighbor), and active a RTD that is bigger than a threshold, then the trigger of HANDDOWN Hard Handoff needs to open a serial switch. 5RTD measuring For the HANDDOWN or the Direct Hard Handoff, the Round Trip Delay is very important, which needs to layout the handoff band reasonably and measure the Round Trip Delay of hardoff band and set RTD threshold. The Round Trip Delay can be used that is measured by the UltraEdit filter BS from Debugging Console. 6Configure the destination of HANDDOWNRTD

The HANDDOWN handoff and RDT handoff need to configure the destination of handoff. According to neighbor relation, the configuration should meet the condition which pilot carrier the mobile phone is hand to. 7.5 The operation command of maintenance console1Maintenance of carrier status: If the 201 carrier has been implemented, it is found that the configuration of coverage, neighbor relation, handoff parameter, hardoff band is not reasonable, then the carrier should be blocked and serve the mobile phone at 283.Query of carrier status: DSP RES

Block carrier: BLK RES

Unblock carrier: UBL RES

Notes: The carrier block can be avoided the dropping calls by a smooth process, for example: firstly modify the CDMA signal number and extended CDMA channel number to 283 that are in the Sync message of 201, and set the 201 is not sent in the CCLM and ECCLM, in this way the idle Mobile phone will not stick at the 201, then after the calls of 201 hanging up, then block this frequency point. For unblock, the contrary process is advised to be adopted. 2Sync Channel Message: There are two filed in the Sync Channel message: CDMA Channel number and extended CDMA Channel number, they mean the frequency point of corresponding paging channel. After the Mobile phone capturing the sync channel, the Mobile Phone 95 will continue to capture the master paging channel whose frequency point is CDMA Channel, and the Mobile phone 2000 will continue to capture the master paging channel whose frequency point is Extended CDMA Channel. If the 201 is not configured with paging channel, or the mobile phone dont intend to stay resident at 201, both of the fields can be set t0 283 in 201 Sync Channel. MOD SCHM: CN=2304, SCTID=0, CRRID=10, CDMABSN=283, EXTCDMABSN=283;The Sync message of Carrier (2304010only carry 283 frequency point. If it is supposed that the Mobile phone 95 is with 283 paging channel, 2000 mobile phone is with 201 paging channel, the CDMA channel can be set to 283, the Extended CDMA channel can be set to 201. MOD SCHM: CN=2304, SCTID=0, CRRID=10, CDMABSN=283, EXTCDMABSN=201;MOD SCHM: CN=2304, SCTID=0, CRRID=11, CDMABSN=283, EXTCDMABSN=201;The CDMA channel in Sync Message of 2304-0-1011 is set to 283the extended is set to 201

3CCLM message and ECCLM messageBecause of the relation of idle handoff, if all of the mobile phone is hoped to stay resident at 283, and send calls at 283. Then only the 283 frequency point is set to be sent in CCLM, namely the 201 is not set to be sent CCLM and ECCLM. MOD CDMACH: CN=2304, SCTID=0, CRRID=10, CCLMFLG=NO, ECCLMFLG=NO;The 201 frequency point is not set to be sent in CCLM and ECCLM of 230401011,only the 283 is included. If the Mobile Phone 95 is hoped at 283 and Mobile phone 2000 is hoped at 201, it needs to send ECCLM. The 283 frequency point is only sent in CCLM, and 283 and 201 frequency point are sent in ECCLM, the sending 283 in CCLM and ECCLM can be set by maintenance console, the 201 is not sent in ECCLM but not in CCLM. Then the switch of ECCLM needs to be opened, and show up that the ECCLM is sent: MOD ECCLM: SUBITEM=SCT_CLASS, CN=2304, SCTID=0, RCQPCHSELINCL=NO, EXTCDMACHLST=YES; MOD CDMACH: CN=2304, SCTID=0, CRRID=10, CCLMFLG=NO, ECCLMFLG=YES;

MOD CDMACH: CN=2304, SCTID=0, CRRID=11, CCLMFLG=YES, ECCLMFLG=YES;4Hard assignment: The switch of Hard Handoff belongs to the level of cell and it is configured in the CELL table. Hard Assignment threshold belongs to the level of carrier.

Carrier priority belongs to the level of carrier and it is configured in the PILOT table. For example, if the mobile phone is hoped to take priority to call at 283, if the load of 283 exceeds than 80%, which will be load balanced with the 201 frequency point of the same sector. It can be set as follows: MOD CHINF: CN=2304, SCTID=0, CRRID=11, CASNVCVLV=80;Modify the threshold of hard assignment is 80%.MOD CDMACH: CN=2304, SCTID=0, CRRID=10, PLTPL=2;Modify the priority of 201 frequency point 2304010to 2 and the priority of 283 is defaulted to 1the smaller the value is, the higher the priority is. MOD CELL: CN=2304, SCTID=0, CASN=YES;Open the switch of hard assignment. Notes: After setting, maybe the monitor result of radio source shows that the load of two carriers is not average, it is because of that there are many handoff branch in the 283 frequency point, hard assignment only aims at initial call but the added soft handoff branch can not be used for hard assignment. 5PPSMMThe PMRO can be used to control Mobile phone 2000 to report PPSMM. For Mobile phone 95, it can use the delivered periodically PMRO to report PSMM periodically. The following switches are needed to be opened. 1Pilot frequency testing soft parameter, namely the No.14 soft parameter of RRM:MOD SOFTPARA: SRVMN=RRM, PRMNO=14, PRMV="0x01";Open the switch of mobile phone reporting Pilot Frequency Testing Report periodically. 2Open the HANDDOWN switch of source test carrier, it is best to source test all of the carrier of active collection. MOD PHOALG: CN=2304, SCTID=0, CRRID=10, HD=ON;Open the switch of HANDDOWN Hard Handoff, if the mobile phone is at 283, the switch of 283 needs to be opened. 3The smallest threshold default of EC/lO that accepted by PMRO pilot frequency is25,Under good environment, it will not trigger the Mobile phone to report PPSMM, so the default can be modified to 31:MOD PMRO: CN=2304, SCTID=0, CRRID=10, MINECIOTHRS=31;

6HANDDOWN Hard Handoff: The trigger condition of HANDDOWN Hard Handoff is that the Target Pilot Frequency intensity of Soft Handoff is lower than a threshold (EC/IO absolute threshold of HANDDOWN Hard Handoff), and the smallest RTD of active collection is higher than a threshold (The biggest Round Trip Delay of HANDDWON Hard Handoff). The detailed steps is as follows: 1Open the switch of HANDDOWN Hard Handoff, only the Pilot Frequency switch is opened, it can trigger the HANDDOWN Hard Handoff, so all of the switch of pilot frequency that maybe become to be strongest are opened. MOD PHOALG: CN=2304, SCTID=0, CRRID=10, HD=ON;

2Set the EC/LO absolute threshold of HANDDOWN Hard Handoff, this threshold needs to actual route testing result and confirm after programming reasonable Handoff band. MOD HNDDWN: CN=2304, SCTID=0, CRRID=10, ABSTHRS=26;Modify the EC/lO absolute threshold of HANDDOWN Hard Handoff to 13dB3Set the biggest Round Trip Delay threshold of HANDDOWN Hard Handoff, this threshold needs many times route test and notes of RTD average circs of Handoff Band, for example the value that the RTD near to at 90%, this value is the threshold. MOD HNDDWN: CN=2304, SCTID=0, CRRID=10, MAXRTD=30;Modify the EC/lO threshold of HANDDOWN hard handoff to 304Configure handoff destination, according to the neighbor relation of route testing result and geography location to decide what carrier the mobile phone handoff to, the B03 supports multi target. For example, the 283 frequency point that is handoff from Post office 0 sector 201 to Shopping center 1,2 sector. ADD HNDDWNTRG: CCDMACH="61-2304-0-201", NBRCDMACHS="85-2312-1-283";

ADD HNDDWNTRG: CCDMACH="61-2304-0-201", NBRCDMACHS="85-2312-2-283";7Query: All of query of parameter above use LST command, the LST is used to query data table, BAM is read and showed from background data table directly. 1The LST RRMINFO is used for the query of algorithm parameter, insert Cell Number, sector number, carrier number, and select the table that needs to be queried .2The LST SYSMSG is used for the system message query, insert the Cell number, Sector number and Carrier Number, and select the table that needs to be queried. 3The switch of hard assignment is parameter of sector, LST CELL is used for query.4The priority is the parameter of Pilot frequency, LST CDMA is used for query. 7.6 Command of Debugging ConsoleThe Start Call Trace and Stop Call Trace are mainly used for debugging console.Start Call Trace, the mobile phone Round Trip Delay is checked up by Debugging Console.

Stop Call Trace, if a mobile phone is stopped tracing, please bring down to avoid interfere.

3Check up what mobile phone and performance have been traced, the DSP TRACK is used for this operation. 8 Optimization for Dual (Multi) Carrier NetworkA reasonable multi-carrier network of networking can receive a satisfied purpose. If before expansion, the quality index of coverage network is critical comparatively. Because of that the expansion will bring some bad affection, for example, the call dropped ratio maybe increase 20%30%, and the success ratio of access will deteriorate 1%3%. Therefore the network index after expansion will not reach quality requirements. For this network, before expansion, the network needs to be optimized. The optimization target includes: reducing call dropped ratio, increase access success ratio. The common methods are: dispose pollution of pilot frequency, optimize neighbor list, debug power control parameter, debug coverage structure of radio network, debug handoff parameter etc. The purpose of debugging is not only by viewing traffic measurement index and also by the statistic index of route test data ,generally they are: contrast of the Ec/lo distribution optimization, contrast of distribution of mobile phone transmit power, contrast of distribution of mobile receiving power, contrast of FER distribution and contrast of handoff scale. Please refer to relative Guide book to get the detailed optimization method. After installing the superimpose carrier, generally the installed network needs a test, and then it can accept commercial users directly. The BSC version R002B03D006 and next version has collected test function for the test. The principle is that the tested mobile phone is assigned to superimpose coverage directly, but common commercial mobile phone does not adopt coverage level temporarily. Generally, the test for superimpose includes that: coverage quality index: Ec/lo, Rx/Tx power, FER etc; in addition, the difference between the index and basis coverage level also is included. These testes are helpful for future networking debugging.

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