资料介绍
WCDMA_1Concepts of 3GPP WCDMA
Revision 1.5
Copyright Agilent Technologies 2000 20059月15日 Concepts of 3GPP WCDMA 1
Benefits of 3GPP WCDMA
Higher Capacity - about 2X IS-95, 7X GSM Ability to Send up to 384 kbps High Speed Data while Moving (Internet, video, multimedia, etc.) Up to 2 Mbps Throughput for Fixed Applications 5 MHz Bandwidth is more Immune to Fading No Accurate Base Station Synchronization Needed Support for Hand-off To and From GSM
Copyright Agilent Technologies 2000 WCDMA 20059月15日
Concepts of 3GPP 2
3GPP Frame Structure
Physical Channels Have a Two Layer Structure:
Radio frame: 10 ms frame consisting of 15 timeslots Timeslot: 667 usec slot consisting of a number of Symbols
Symbols are Defined as:
One Symbol Consists of a Number of Chips . The Number of Chips per
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