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3G Basic Issue 1-8 Physical Channels Thai
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3rd Generation of Mobile Communications Advanced Info Service PLC.
1 | P a g e 3G Basic Composed by: Wutthilert Rungchai Radio Access BKK March 2010 Edit by: Bunjong Yosapa
Channel Physical
Channel
(UE)
channel
Physical channels
1 Channels layer
3rd Generation of Mobile Communications Advanced Info Service PLC.
2 | P a g e 3G Basic Composed by: Wutthilert Rungchai Radio Access BKK March 2010 Edit by: Bunjong Yosapa
Physical (Layer 1)
PCCPCH - Primary Common Control Physical Channel
SCCPCH - Secondary Common Control Physical Channel
PRACH - Physical Random Access Channel
DPDCH - Dedicated Physical Data Channel
DPCCH - Dedicated Physical Control Channel
PDSCH - Physical Downlink Shared Channel
PCPCH - Physical Common Packet Channel
SCH - Synchronization Channel
- P-SCH - Primary Synchronization Channel
- S-SCH - Secondary Synchronization Channel
CPICH - Common Pilot Channel
AICH - Acquisition Indicator Channel
PICH - Paging Indication Channel
CSICH - CPCH Status Indication Channel
CD/CA-ICH - Collision Detection/Channel Assignment Indication Channel
3rd Generation of Mobile Communications Advanced Info Service PLC.
3 | P a g e 3G Basic Composed by: Wutthilert Rungchai Radio Access BKK March 2010 Edit by: Bunjong Yosapa
CPICH-Common Pilot Channel
CPICH Channelization code Scrambling Code
UE DCH
UTRA CPICH Primary Secondary Primary CPICH
Primary scrambling code Channelization code
Channel (Cell Sector) Secondary CPICH Channelization code
256 bit (SF 256) Secondary scrambling code Secondary
CPICH
Primary CPICH UE Handover Cell
Selection/Reselection Coverage Power Channel
SCH-Synchronization Channel
SCH cell search UE 2 Channels Primary
Secondary synchronization channels
Primary SCH 256 UE
Secondary SCH Code word Code 64 ( Code
Issue 1-3) Code
(Adjacent cells)
3rd Generation of Mobile Communications Advanced Info Service PLC.
4 | P a g e 3G Basic Composed by: Wutthilert Rungchai Radio Access BKK March 2010 Edit by: Bunjong Yosapa
Primary CCPCH
Primary Common Control Physical Channel Physical channel BCH
(Broadcast Channel) UE Channel coding Spreading
code UE layer 1 Power control
UE Bit rate 30Kbps Channelization Code 256
0 1 14
256 chips
2560 chips
10 ms
SecondarySCH
PrimarySCH
2 Primary Secondary synchronization channel
0 1 2 3 . 14
256 chips 2304 chips
10 ms
Slot
Primary CCPCH
3 Primary CCPCH
3rd Generation of Mobile Communications Advanced Info Service PLC.
5 | P a g e 3G Basic Composed by: Wutthilert Rungchai Radio Access BKK March 2010 Edit by: Bunjong Yosapa
Secondary CCPCH
Secondary Common Control Physical Channel Channel
Transport channel FACH PCH SCCPCH SCCPCH 1 channel
FACH PCH
Spreading factor SCCPCH Bit
rate SCCPCH UE Bit rate
RACH- Random Access Channel
RACH Signaling UE
Register Location update Bit rate
UE
AICH-Acquisition Indicator Channel
RACH Signaling UE RACH
UE Preamble Signature sequence
RACH Signature sequence AICH
3rd Generation of Mobile Communications Advanced Info Service PLC.
6 | P a g e 3G Basic Composed by: Wutthilert Rungchai Radio Access BKK March 2010 Edit by: Bunjong Yosapa
0 1 2 3 . 14
4096 chips
20 ms ( 2 frames)
AICH
1024 chips
4 AICH access slot
PICH-Paging Indicator Channel
PCH (Paging Channel) Sleep mode
Channelization code 256 Slot PICH 300
288 Paging 12 Paging indicator
18, 36, 72 144 18 16 36
8 144 2
5 PICH
3rd Generation of Mobile Communications Advanced Info Service PLC.
7 | P a g e 3G Basic Composed by: Wutthilert Rungchai Radio Access BKK March 2010 Edit by: Bunjong Yosapa
DPDCH & DPCCH -Dedicated Physical Data Channel & Dedicated Physical
Control Channel
DPDCH Channel
DPDCCH Control information UE Downlink DPDCH
DPCCH Multiplex Physical channel
0 1 2 3 . 14
DATA
DPDCH
2560 chips
10 ms
Slot
DownlinkDPCH
TPC TFCI DATA PILOT
DPCCH DPDCHDPCCH DPCCH
6 Multiplex DPDCH DPCCH Downlink Dedicated Physical Channel
UE (Uplink) DPDCH DPCCH
UE
3rd Generation of Mobile Communications Advanced Info Service PLC.
8 | P a g e 3G Basic Composed by: Wutthilert Rungchai Radio Access BKK March 2010 Edit by: Bunjong Yosapa
0 1 2 3 . 14
PILOT
DPDCH
2560 chips
10 ms
DPCCH
UplinkDCH
TFCI FBI TPC
DATA
7 Uplink dedicated channel
TPC Transmission Power Control
TFCI Transport Format Combination Indicator
FBI Feedback Information
PILOT Radio RSCP, EcIo
3rd Generation of Mobile Communications Advanced Info Service PLC.
9 | P a g e 3G Basic Composed by: Wutthilert Rungchai Radio Access BKK March 2010 Edit by: Bunjong Yosapa
8 Uplink DPDCH data rates
9 Downlink Dedicated Channel symbol and bit rates
PDSCH- Physical Downlink Shared Channel
Physical channel Transport channel Downlink Shared Channel (DSCH)
DPDCH
3rd Generation of Mobile Communications Advanced Info Service PLC.
10 | P a g e 3G Basic Composed by: Wutthilert Rungchai Radio Access BKK March 2010 Edit by: Bunjong Yosapa
10 ms DPCH frame
Associated PDSCH frame
Downlink DPCH
46 080 chips
Minimum PDSCH delay
PDSCH
10 PDSCH DPCH
PDSCH Bit rates
PDSCH TFCI Downlink DPCH
PCPCH-Physical Common Packet Channel
Channel Packet Uplink Transport channel CPCH
Uplink Synchronize Channel Channel
CSICH CPCH Status Indication Channel
CD-ICH CPCH Collision Detection Indicator Channel
CA-ICH CPCH Assignment Indicator Channel
AP-AICH CPCH Access Preamble Acquisition Channel
CSICH AICH 4 CSICH
Physical CPCH Channel UE Access Free Channel
3rd Generation of Mobile Communications Advanced Info Service PLC.
11 | P a g e 3G Basic Composed by: Wutthilert Rungchai Radio Access BKK March 2010 Edit by: Bunjong Yosapa
Channel assignment command Channel
CSICH Channelization code Downlink AP-AICH
CD-ICH ( Access UE) UE
CA-ICH CD-ICH CA-ICH UE
AP-AICH AICH RACH Channelization code
http://www.umtsworld.com/technology/technology.htm
WCDMA for UMTS Wiley
3GPP TS 25.211 Physical channels and mapping of transport channels onto physical channels
(FDD)