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Compare of WCDMA and CDMA 2000.
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written 5.8 years ago by
teamques10
★ 68k
|
| Parameter | WCDMA | CDMA 2000 |
|---|---|---|
| Carrier spacing: spacing between CDMA operators to obtain channel protection | 5MHz | 3.75MHz |
| Chip rate: no. of DSSS pulses per/second | 4.096MHz | 3.68MHz |
| Spreading Factor:,SF=chip rate/ data rate | Higher | Lower |
| Power Control Frequency | 1500Hz | 800Hz |
| Frame Duration | 10ms | 20ms,(also uses 5,30,40ms) |
| Base Stations | Asynchronous | synchronous |
| Forward link pilot: Channel modulated only by PNC (Pseudo Noise Spreading codes) | TDM dedicated pilot | CDM common pilot |
| Antenna Beam Forming | TDM, Dedicated port | Auxiliary port |
| Bandwidth | 5MHz | 1.25MHz |
| User Separation | CDM/TDM,(shared channel) | CDM, TDM,(scheduler) |
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