Huawei HSDPA Parameter Description

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Huawei HSDPA Parameter Description

Text of Huawei HSDPA Parameter Description

  • RAN

    HSDPA Parameter Description

    Issue 02

    Date 2009-06-30

  • Copyright Huawei Technologies Co., Ltd. 2009. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent 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 the customer. All or part of the products, services and features described in this document may not be within the purchase 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 representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.

    Huawei Technologies Co., Ltd.

    Address: Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

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    Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd

  • RAN HSDPA Contents

    Issue 02 (2009-06-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd

    iii

    Contents

    1 Introduction to This Document...............................................................................................1-1 1.1 Scope.............................................................................................................................................................1-1 1.2 Intended Audience.........................................................................................................................................1-1 1.3 Change History..............................................................................................................................................1-1

    2 Overview of HSDPA .................................................................................................................2-1 2.1 General Principles of HSDPA .......................................................................................................................2-1 2.2 HSDPA Channels ..........................................................................................................................................2-2

    2.2.1 HS-DSCH and HS-PDSCH .................................................................................................................2-3 2.2.2 HS-SCCH.............................................................................................................................................2-3 2.2.3 HS-DPCCH..........................................................................................................................................2-3 2.2.4 DPCCH and DPCH/F-DPCH...............................................................................................................2-4

    2.3 Impact of HSDPA on NEs .............................................................................................................................2-4 2.4 HSDPA Functions .........................................................................................................................................2-4

    2.4.1 HSDPA Control Plane Functions .........................................................................................................2-4 2.4.2 HSDPA User Plane Functions ..............................................................................................................2-6

    3 Control Plane ..............................................................................................................................3-1 3.1 Bearer Mapping.............................................................................................................................................3-1 3.2 Access Control ..............................................................................................................................................3-2 3.3 Mobility Management ...................................................................................................................................3-2 3.4 Channel Switching ........................................................................................................................................3-3 3.5 Load Control .................................................................................................................................................3-5 3.6 Power Resource Management .......................................................................................................................3-5 3.7 Code Resource Management.........................................................................................................................3-6

    3.7.1 HS-SCCH Code Resource Management..............................................................................................3-6 3.7.2 HS-PDSCH Code Resource Management ...........................................................................................3-7 3.7.3 RNC-Controlled Static Code Allocation ..............................................................................................3-7 3.7.4 RNC-Controlled Dynamic Code Allocation ........................................................................................3-7 3.7.5 NodeB-Controlled Dynamic Code Allocation .....................................................................................3-9 3.7.6 Dynamic Code Tree Reshuffling........................................................................................................3-10

    4 User Plane....................................................................................................................................4-1 4.1 Flow Control and Congestion Control ..........................................................................................................4-1

  • Contents RAN

    HSDPA

    iv Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd

    Issue 02 (2009-06-30)

    4.1.1 Flow Control ........................................................................................................................................4-2 4.1.2 Congestion Control ..............................................................................................................................4-3

    4.2 RLC and MAC-d...........................................................................................................................................4-3 4.2.1 RLC......................................................................................................................................................4-3 4.2.2 MAC-d .................................................................................................................................................4-4

    4.3 MAC-hs Scheduling......................................................................................................................................4-4 4.3.1 Determining the Candidate Set ............................................................................................................4-4 4.3.2 Calculating Priorities ...........................................................................................................................4-5 4.3.3 Comparison of Four Algorithms ..........................................................................................................4-8

    4.4 HARQ ...........................................................................................................................................................4-9 4.4.1 HARQ Retransmission Principles........................................................................................................4-9 4.4.2 Soft Combining During HARQ .........................................................................................................4-10 4.4.3 Preamble and Postamble ....................................................................................................................4-10

    4.5 TFRC Selection ...........................................................................................................................................4-11 4.5.1 Basic Procedure of TFRC Selection...................................................................................................4-11 4.5.2 Determining the TBSmax.....................................................................................................................4-11 4.5.3 Determining the TBSused, Modulation Scheme, Power, and Codes....................................................4-13 4.5.4 Determining the Number of MAC-d PDUs .......................................................................................4-14

    5 QoS and Diff-Serv Management ............................................................................................5-1 5.1 QoS Management..........................................................................................................................................5-1 5.2 Diff-Serv Management..................................................................................................................................5-3

    5.2.1 SPI Weight Description...........................................................