E1993A Datasheet, PDF (10/40 Pages) Keysight Technologies – W-CDMA Mobile Test Application

10 | Keysight | E1963A W-CDMA Mobile Test Application - Technical Overview
For DC-HSDPA the channel default assignment, code choices, and relative levels are the
same for each of the serving cells, except that DPCH is only for the primary serving cell,
and the maximum number of HS-SCCHs across both serving cells is 6.
For HSDPA MIMO, the pilot channel for each antenna can be configured. P-CPICH is
configured on antenna 1 and P-CPICH or S-CPICH can be configured on antenna 2,
and the relative level (power offsets from the cell power of the channels transmitted
on antenna 1 or 2) is –20 to 0 dB.
When HSDPA MIMO is active, the same number of HS-PDSCHs is transmitted on both
antennas with the same channelization codes. The existing power levels of HS-PDSCHs
specified in the power offset parameters are the power offsets of all HS-PDSCHs
transmitted on both antennas relative to the cell power. The power of each HS-PDSCH
is split equally on both antennas.
RF IN/OUT composite signal absolute output level accuracy (DC-HSDPA)
AWGN off:
–– < ±1.2 dB (typically < ±0.75 dB), at –109 to –15 dBm/3.84 MHz and < 2300 MHz
–– < ±1.6 dB (typically < ±1.1 dB), at –109 to –15 dBm/3.84 MHz and ≥ 2300 MHz
Downlink CDMA modulation
Modulation type: QPSK, 16QAM, and 64QAM per 3GPP standard
–– QPSK residual EVM: 10%, typically < 3%
–– QPSK carrier feed through: < –25 dBc, typically < –35 dBc nominal ambient performance: < –45 dBc
–– 16QAM residual EVM: Typically < 3%
–– 16QAM carrier feed through: Typically < –35 dBc nominal ambient performance: < –45 dBc
–– 64QAM residual EVM: Typically < 6%
–– 64QAM carrier feedthrough: Typically < –35 dBc, nominal ambient performance: < –45 dBc
RF OUT ONLY composite signal absolute output level accuracy (DC-HSDPA)
AWGN off:
–– < ±1.2 dB (typically < ±0.75 dB), at –109 to –15 dBm/3.84 MHz and < 2300 MHz
–– < ±1.6 dB (typically < ±1.1 dB), at –109 to –15 dBm/3.84 MHz and ≥ 2300 MHz
OCNS – orthogonal channel noise source
Composed of 6 channels per Table E.5.5 in Annex E of 3GPP 34.121. OCNS channel can be
off but at least 1 OCNS channel is in presence.
OCNS channel relative level range: Automatically calculated from other code channel relative
levels to provide the composite W-CDMA cell power, but user-allocated channel level available
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