WCDMA Physical Layer

WCDMA Physical LayerWCDMA Physical Layer (Chapter 6)
Peter Chong, Ph.D. (UBC, Canada) Research Engineer Nokia Research Center, Helsinki, Finland

1

26.01.2002

WCDMA Phys ical Layer

Introduction
This lecture presents a general WCDMA or UTRA (Universal Terrestrial Radio Access) FDD (Frequency Division Duplex) physical layer issues.

Spreading and Scrambling Transport Channels Physical Channels Signaling Physical Layer Procedures

Mapping to

2

26.01.2002

WCDMA Phys ical Layer

Some Parameters of WCDMA Physical Layer
Carrier Spacing Chip Rate Frame Length No. of slots/frame No. of chips/slot Uplink SF Downlink SF Channel Rate
3 26.01.2002

5 MHz (nominal) 3.84 Mcps 10 ms (38400 chips) 15 2560 chips (Max. 2560 bits) 4 to 256 4 to 512 7.5 Kbps to 960 Kbps
WCDMA Phys ical Layer

Spreading and Scrambli