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BBU Interconnection(SRAN8.0_Draft a)

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BBU Interconnection Huawei BTS
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  SingleRANSRAN8.0 BBU Interconnection FeatureParameter Description IssueDraft ADate2013-01-15HUAWEI TECHNOLOGIES CO., LTD.    Copyright © Huawei Technologies Co., Ltd. 2013. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd.  Trademarks and Permissions  and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.  Notice The purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided AS IS without warranties, guarantees or representationsof any kind, either express or implied.The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.  Huawei Technologies Co., Ltd.  Address:Huawei Industrial BaseBantian, LonggangShenzhen 518129People's Republic of ChinaWebsite:http://www.huawei.comEmail:support@huawei.com Issue Draft A (2013-01-15)Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.i  Contents 1 About This Document..................................................................................................................1 1.1 Scope..................................................................................................................................................................11.2 Intended Audience..............................................................................................................................................11.3 Change History...................................................................................................................................................1 2 Overview.........................................................................................................................................3 2.1 Introduction........................................................................................................................................................32.2 Upgrade to Triple-Mode Base Stations..............................................................................................................32.2.1 Cable Connections.....................................................................................................................................32.2.2 Application Scenarios................................................................................................................................42.2.3 Restrictions................................................................................................................................................52.2.4 Supported Features and Functions.............................................................................................................62.3 UMTS Baseband Capacity Expansion...............................................................................................................62.3.1 Cable Connections.....................................................................................................................................62.3.2 Application Scenarios................................................................................................................................72.3.3 Restrictions................................................................................................................................................9 3 Related Features...........................................................................................................................104 Impact on the Network...............................................................................................................11 4.1 Impact on System Capacity..............................................................................................................................114.2 Impact on Network Performance......................................................................................................................11 5 Engineering Guidelines.............................................................................................................12 5.1 When to Use BBU Interconnection..................................................................................................................125.2 Information to Be Collected.............................................................................................................................125.3 Network Planning.............................................................................................................................................125.3.1 Software Versions....................................................................................................................................125.3.2 Subr acks and Hardware Configurations for the BBUs............................................................................125.3.3 Transmission Modes................................................................................................................................135.3.4 CPR I-based Topologies...........................................................................................................................165.3.5 Clocks......................................................................................................................................................185.4 Feature Deployment.........................................................................................................................................185.4.1 Deployment Requirements......................................................................................................................185.4.2 Data Preparation......................................................................................................................................185.4.3 Initial Configuration................................................................................................................................22SingleRANBBU Interconnection Feature Parameter DescriptionContentsIssue Draft A (2013-01-15)Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.ii  5.4.4 Activation Observation............................................................................................................................225.4.5 Adjustment...............................................................................................................................................235.5 Performance Optimization................................................................................................................................315.6 Troubleshooting................................................................................................................................................31 6 Reference Documents.................................................................................................................33 SingleRANBBU Interconnection Feature Parameter DescriptionContentsIssue Draft A (2013-01-15)Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.iii

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