3G Basic Issue 1-4 Modulation Thai
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Transcript of 3G Basic Issue 1-4 Modulation Thai
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3rd Generation of Mobile Communications Advanced Info Service PLC.
1 | P a g e
Radio Access BKK Composed by: W.R Edit by:
ISSUE 1- 4
Modulation Modulation Modulation
FDMA 1 FM
(Frequency modulation) 2 TDMA GMSK (Gaussian minimum-shift keying)
FSK (Frequency Shift Keying) 1 0
EDGE GSM 8PSK Radio
3 CDMA/WCDMA QPSK (Quadrature phase-shift keying) BPSK (Binary Phase Shift Keying) downlink uplink HSPA HDPA+ 16QAM 64QAM ( QPSK 16QAM 8QAM )
1 modulate WCDMA
3 Phase Phase Amplitude
QPSK 2 , 16QAM 4
(2^4=16) 64QAM 6 (2^6=64)
6
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3rd Generation of Mobile Communications Advanced Info Service PLC.
2 | P a g e
Radio Access BKK Composed by: W.R Edit by:
2 QPSK
Modulation QPSK (Series) (Parallel)
90 Mod QPSK
Amplitude
3 QAM
Modulation QAM QPSK
Order Modulation 16QAM 4 64QAM 6
Amplitude-Shift keying (ASK) Phase-shift keying (PSK) 4
6 16QAM 64QAM
QPSK (Downlink) BPSK (Uplink) Modulate R99 16QAM 64QAM
(Quadrature Amplitude Modulation) HSPA HSPA+
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3rd Generation of Mobile Communications Advanced Info Service PLC.
3 | P a g e
Radio Access BKK Composed by: W.R Edit by:
1 Order symbol
Order Radio
16QAM 64QAM Amplitude Power control
Modulate Power control
2ms 10ms
Order Phase Amplitude
ASK
PSK Radio Fading
(High linearity)
power amplifier
Fading Active
Passive (High linearity) Fading
Linearity
Vendor