【資料名稱】：QUALCOMM HSDPA principle

【資料作者】：QUALCOMM

【資料日期】：2010

【資料語(yǔ)言】：英文

【資料格式】：DOC

【資料目錄和簡(jiǎn)介】：

Table of Contents
Section 1: Introduction.......................................................................... 1-1
HSDPA Protocols and Physical Layer – Course Overview..................... 1-2
Section Learning Objectives .................................................................... 1-3
High Speed Downlink Packet Access (HSDPA)..................................... 1-4
WCDMA Evolution................................................................................. 1-5
UMTS Standards...................................................................................... 1-6
Release 99 Packet Data............................................................................ 1-7
Release 99 Downlink Limitations............................................................ 1-8
High Speed Downlink Packet Access (HSDPA)..................................... 1-9
HSDPA Basic Concepts......................................................................... 1-10
Comparison Summary ........................................................................... 1-11
Introduction – What We Learned .......................................................... 1-12
Section 2: HSDPA Concepts ................................................................. 2-1
Section Learning Objectives .................................................................... 2-2
References .......................................................................................... 2-3
UMTS Network Architecture .................................................................. 2-4
UMTS Network Architecture with HSDPA ............................................ 2-5
UMTS Protocol Stack.............................................................................. 2-6
HSDPA Protocol Stack............................................................................ 2-7
Release 99 Channels ................................................................................ 2-8
HSDPA Channels..................................................................................... 2-9
HSDPA Channel Timing ....................................................................... 2-11
HS-DPCCH ........................................................................................ 2-12
HS-SCCH ........................................................................................ 2-13
HS-PDSCH ........................................................................................ 2-14
Data Rate Quiz 1.................................................................................... 2-15
Data Rate Quiz 1 – Answer ................................................................... 2-16
Theoretical HSDPA Maximum Data Rate............................................. 2-17
Multi-code Transmission ....................................................................... 2-18
Consecutive Assignments ...................................................................... 2-19
Hybrid Automatic Repeat Request (HARQ) ......................................... 2-20
Lower Coding Gain................................................................................ 2-21
16-QAM ........................................................................................ 2-23
Theoretical HSDPA Maximum Data Rate............................................. 2-24
Data Rate Quiz 2.................................................................................... 2-25
Answer....................................................................................... 2-26
More Data Rate Factors ......................................................................... 2-27
Inter-TTI Interval ................................................................................... 2-28
Retransmissions ..................................................................................... 2-29
ACK/NAK Repetitions .......................................................................... 2-30
Node B Considerations .......................................................................... 2-31
OVSF Allocation ................................................................................... 2-32
. 2005 QUALCOMM Incorporated
Table of Contents – Book 1
WCDMA (UMTS) HSDPA: Protocols and Physical Layer 80-W0331-1 Rev B
vi
Node B Transmit Power Allocation....................................................... 2-33
CQI Report Processing .......................................................................... 2-34
Node B Scheduler .................................................................................. 2-35
HSDPA Cell Re-pointing Procedure ..................................................... 2-36
Review Quiz ........................................................................................ 2-37
Answers ..................................................................................... 2-38
HSDPA Concepts – What We Learned ................................................. 2-41
Section 3: Physical Layer Channels ..................................................... 3-1
Section Learning Objectives .................................................................... 3-2
References .......................................................................................... 3-3
HSDPA Physical Layer Model
Downlink...................................................................................... 3-4
Uplink .......................................................................................... 3-5
Physical Layer Frame Timing.................................................................. 3-6
Downlink HS-PDSCH............................................................................. 3-7
HS-DSCH Channel Coding and Physical Channel Mapping .................. 3-8
HS-DSCH Channel Coding ..................................................................... 3-9
Physical Layer HARQ Functionality......................................... 3-12
HARQ Combining Schemes ...................................................... 3-13
Segmentation and Interleaving .................................................. 3-14
16-QAM Constellation Rearrangement ..................................... 3-15
HS-DSCH Physical Channel Mapping .................................................. 3-16
Downlink HS-SCCH.............................................................................. 3-17
HS-SCCH Channel Coding.................................................................... 3-18
HS-PDSCH and HS-SCCH Spreading and Modulation........................ 3-19
HS-PDSCH and HS-SCCH Timing....................................................... 3-20
Uplink HS-DPCCH ............................................................................... 3-21
HS-DPCCH Channel Coding................................................................. 3-22
HS-DPCCH Spreading and Modulation ................................................ 3-23
HS-DPCCH Timing............................................................................... 3-24
HARQ Transmission Quiz..................................................................... 3-25
HARQ Transmission Quiz – Answers................................................... 3-