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UTRA Channels

UTRA FDD radio interface has logical channels, which are mapped to transport channels, which are

again mapped to physical channels. Logical to Transport channel conversion happens in Medium

Access Control (MAC) layer, which is a lower sublayer in Data Link Layer (Layer 2).

Logical Channels:

Broadcast Control Channel (BCCH), Downlink (DL)

Paging Control Channel (PCCH), DL

Dedicated Control Channel (DCCH), UL/DL

Common Control Channel (CCCH), UL/DL

Dedicated Traffic Channel (DTCH), UL/DL

Common Traffic Channel (CTCH), Unidirectional (one to many)

Transport Channels:

Dedicated Transport Channel (DCH), UL/DL, mapped to DCCH and DTCH

Broadcast Channel (BCH), DL, mapped to BCCHForward Access Channel (FACH), DL, mapped to BCCH, CCCH, CTCH, DCCH and DTCH

Paging Channel (PCH), DL, mapped to PCCH

Random Access Channel (RACH), UL, mapped to CCCH, DCCH and DTCH

Uplink Common Packet Channel (CPCH), UL, mapped to DCCH and DTCH

Downlink Shared Channel (DSCH), DL, mapped to DCCH and DTCH

Physical Channels:

Primary Common Control Physical Channel (PCCPCH), mapped to BCH

Secondary Common Control Physical Channel (SCCPCH), mapped to FACH, PCH

Physical Random Access Channel (PRACH), mapped to RACH

Dedicated Physical Data Channel (DPDCH), mapped to DCHDedicated Physical Control Channel (DPCCH), mapped to DCH

Physical Downlink Shared Channel (PDSCH), mapped to DSCH

Physical Common Packet Channel (PCPCH), mapped to CPCH

Synchronisation Channel (SCH)

Common Pilot Channel (CPICH)

Acquisition Indicator Channel (AICH)

Paging Indication Channel (PICH)

CPCH Status Indication Channel (CSICH)

Collision Detection/Channel Assignment Indication Channel (CD/CA-ICH)

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UTRA Channels

UMTS Network UMTS Frequencies UMTS Coding UMTS Link Budget

UMTS Security UMTS Codes Synchron isation Co-location

3G Data Speeds UTRA Time Slots UTRA Channels WCDMA Spreading

UMTS QoS Channel Coding Media Formats Compres sed Mode

UMTS HSDPA UMTS Handovers Location Services UMTS Power Control

UMTS Overview Cell Search Random Access RCC States Iui Frame Structure

CDMA Overview Call Setup UTRAN Interfaces Paging Virtual Home Environment

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