3rd Generation of Mobile Communications Advanced Info Service PLC.

1 | P a g e 3G Basic series Composed by: Wutthilert Rungchai Radio Access BKK Edit by: Bunjong Yosapa

UMTS

Dedicated Mode

Power

High-

Speed Downlink Packet

HSDPA Basic

UMTS Channel

Forward Access Channel (FACH) Downlink-Shared Channel (DSCH)

3GPP Packet Release 5 ( Packet

Channel GPRS/EDGE GSM) Channel Packet

Packet Utilization

Throughput Cell 1 2

1 Share 2

2, 3 Scheduling

Real Time Share

3rd Generation of Mobile Communications Advanced Info Service PLC.

2 | P a g e 3G Basic series Composed by: Wutthilert Rungchai Radio Access BKK Edit by: Bunjong Yosapa

1 Dedicated

2 Shared

HSDPA Downlink

Physical Layer (Retransmission

) Modulation

Channel Coding)

Concept HSDPA Packet Data Throughput

GPRS/EDGE (Flow Control) RNC Delay

3rd Generation of Mobile Communications Advanced Info Service PLC.

3 | P a g e 3G Basic series Composed by: Wutthilert Rungchai Radio Access BKK Edit by: Bunjong Yosapa

UE Packet Retransmission HSDPA

Radio

Node-B

RNC

ACK/NACK

Node-B

UE 3 Flow Control

RNC

ACK/NACK

Node-B

UE 4 Flow control HDSPA

Feature DSCH DS-DSCH

Variable spreading factor Yes No

Fast power control Yes No

Adaptive modulation and coding (AMC) No Yes

Multi-code operation Yes Yes, Extended

Fast L1 HARQ No Yes

1 DSCH HS-DSCH

3rd Generation of Mobile Communications Advanced Info Service PLC.

4 | P a g e 3G Basic series Composed by: Wutthilert Rungchai Radio Access BKK Edit by: Bunjong Yosapa

HS-DSCH High Speed Downlink Shared Channel

User data(HS-DSCH, HS-SCCH)

Channel quality feedback (HS-DPCCH, DCH)-CQI, PC commands, ACK/NACK info

Node-B

5 HSDPA Channel

Node-B HSDPA Fast Scheduling

Quality feedback

UE Capability

Resource availability

Buffer Status

QoS and Priority

Node-B Channel

(Active) Power Control, ACK NACK UE CQI

HSDPA WCDMA Variable SF Fast

Power Control Adaptive Modulation and Coding (AMC) Error

Correction Fast Hybrid Automatic Repeat Request ( HARQ )

3rd Generation of Mobile Communications Advanced Info Service PLC.

5 | P a g e 3G Basic series Composed by: Wutthilert Rungchai Radio Access BKK Edit by: Bunjong Yosapa

Codes (Channelization Code R99 Code Spreading

Code Channel 1 5 Codes 5 Channels

) Variable SF

HSPDA Packet

(Scheduling Decision) (Node-B) Iub

RNC HSDPA Capacity

Fast Fading

UE Packet Packet

Channel Coding Packet

Incremental Redundancy

Diversity Gain

Radio Access HSDPA Radio Access HSDPA 3 4 Channel

HS-DSCH (High Speed Medium Access Control (MAC)

(Node-B) Retransmission

3rd Generation of Mobile Communications Advanced Info Service PLC.

6 | P a g e 3G Basic series Composed by: Wutthilert Rungchai Radio Access BKK Edit by: Bunjong Yosapa

6 MAC Layer Protocol HSDPA RNC

Radio Link Control (RLC) HS-DSCH

Physical Layer

MAC-hs ARQ Packet

RLC

MAC

WCDMA L1

Frameprotocol

MAC-hs

WCDMA L1 Transport

Frameprotocol

Transport

MAC-d

RLC

UENAS Node B SRNC

Uu Iub/Iur

Iu

6 HSDPA Protocol (HSDPA User plane)

Physical Layer HSDPA 3 Channels Physical Layer

1. HS-DSCH (High Speed Downlink Shared Channel)

Peak 14Mbps 16QAM

2. HS-SCCH (High-Speed Shared Control Channel)

Physical Layer UE HS-DSCH

Packet

3rd Generation of Mobile Communications Advanced Info Service PLC.

7 | P a g e 3G Basic series Composed by: Wutthilert Rungchai Radio Access BKK Edit by: Bunjong Yosapa

3. HS-DPCCH (Uplink High Speed Dedicated Physical Control Channel)

UE ARQ ACK ( Positive Negative) CQI

Downlink

WCDMA for UMTS Wiley