About the 3GPP FDD options
R&S®SMM-K42/-K83
16User Manual 1179.1993.02 ─ 06
Table 2-1: Parameters of the modulation system
Parameter Value
Chip rate 3.84 Mcps
Channel types Downlink:
●Primary Common Pilot Channel (P-CPICH)
●Secondary Common Pilot Channel (S-CPICH)
●Primary Sync Channel (P-SCH)
●Secondary Sync Channel (S-SCH)
●Primary Common Control Phys. Channel (P-CCPCH)
●Secondary Common Control Phys. Channel (S-CCPCH)
●Page Indication Channel (PICH)
●Acquisition Indication Channel (AICH)
●Access Preamble Acquisition Indication Channel (AP-AICH)
●Collision Detection Acquisition Indication Channel (CD-AICH)
●Phys. Downlink Shared Channel (PDSCH)
●Dedicated Physical Control Channel (DL-DPCCH)
●Dedicated Phys. Channel (DPCH)
●High-Speed Shared Control Channel (HS-SCCH)
●High-Speed Physical Downlink Shared Channel (HS-PDSCH), Modulation
QPSK, 16 QAM or 64QAM
●HSUPA channels (E-AGCH, E-RGCH, E-HICH, F-DPCH)
Uplink:
●Phys. Random Access Channel (PRACH)
●Phys. Common Packet Channel (PCPCH)
●Dedicated Physical Control Channel (DPCCH)
●Dedicated Physical Data Channel (DPDCH)
●High Speed Dedicated Physical Control Channel (HS-DPCCH)
●E-DCH Dedicated Physical Control Channel (E-DPCCH)
●E-DCH dedicated physical data channel (E-DPDCH)
Symbol rates 7.5 ksps, 15 ksps, 30 ksps to 960 ksps depending on the channel type (down-
link)
15 ksps, 30 ksps, 60 ksps to 1920 ksps depending on the channel type (uplink)
Channel count In downlink 4 base stations each with up to 128 DPCHs and 11 special channels.
In uplink 4 user equipment either with PRACH or PCPCH or a combination of
DPCCH, up to 6 DPDCH, HS-DPCCH, E-DPCCH and up to 4 E-DPDCH chan-
nels.
Frame structure Timeslot: 0.667 ms,
Subframe: 3 timeslots = 2 ms
Radio frame: 15 timeslots = 10 ms
The frame structure in symbols depends on the symbol rate.
Scrambling code Downlink: 18-bit M sequence
Uplink: 25-bit M sequence in long mode and 8-bit M sequence in short mode
Channelization code for
most of the channel
types
"Orthogonal Variable Spreading Factor Code (OVSF)" square matrix of dimen-
sion chip rate/symbol rate
2.3 Modulation system 3GPP FDD
The following block diagram shows the components of the 3GPP FDD transmission
system.
Modulation system 3GPP FDD