PARAMETER 3G NETWORK

Channel bandwidth 5 MHz

Duplex mode FDD and TDD

Downlink RF channel structure Direct spread

Chip rate 3.84 Mbps

Frame length 10 ms

Spreading modulation Balanced QPSK (downlink)

Dual-channel QPSK(uplink

Complex spreading circuit

Data modulation QPSK (downlink)

BPSK (uplink)

Channel coding Convolutional and turbo codes

Coherent detection User dedicated time multiplexed pilot (downlink

and uplink), common pilot in the downlink

Channel multiplexing in downlink Data and control channels time multiplexed

Channel multiplexing in uplink Control and pilot channel time multiplexed

I&Q multiplexing for data and control channel

Multirate Variable spreading and multicode

Spreading factors 4–256 (uplink), 4–512 (uplink)

Power control Open and fast closed loop (1.6 kHz)

Spreading (downlink) OVSF sequences for channel separation

Gold sequences 218-1 for cell and user separation

(truncated cycle 10 ms)

Spreading (uplink) OVSF sequences, Gold sequence 241 for user

separation (different time shifts in I and Q channel,

truncated cycle 10 ms)

Handover Soft handover

Interfrequency handover