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12 Code Domain Measurement
Index: n
<Mnemonic>
Results Returned
…
(3N – 2)th number = i bit of the Nth symbol for BPSK on I branch
(3N – 1)th number = q1 bit of the Nth symbol for 4PAM on Q branch
(3N )th number = q2 bit of the Nth symbol for 4PAM on Q branch
If a channel’s modulation scheme is 4PAM for both I and Q branches, queried data represents alternating i1,
i2 and q1, q2 sequences as follows:
1st number = i1 bit of the 1st symbol for 4PAM on I branch
2nd number = i2 bit of the 1st symbol for 4PAM on I branch
3rd number = q1 bit of the 1st symbol for 4PAM on Q branch
4th number = q2 bit of the 1st symbol for 4PAM on Q branch
5th number = i1 bit of the 2nd symbol for 4PAM on I branch
6th number = i2 bit of the 2nd symbol for 4PAM on I branch
7th number = q1 bit of the 2nd symbol for 4PAM on Q branch
8th number = q2 bit of the 2nd symbol for 4PAM on Q branch
…
(4N – 3)th number = i1 bit of the Nth symbol for 4PAM on I branch
(4N – 2)th number = i2 bit of the Nth symbol for 4PAM on I branch
(4N – 1)th number = q1 bit of the Nth symbol for 4PAM on Q branch
(4N)th number = q2 bit of the Nth symbol for 4PAM on Q branch
where N is the number of the symbols in the entire capture length.
n = 12
Demod Bits For Selected Measurement Period
:
Returns series of floating point numbers of symbol values for the selected code channel for the measurement
period selected by Meas Offset, Meas Interval and tDPCH[BTS] / tHS-DPCCH[MS].
•
If :CALCulate:CDPower:DBITs[:FORMat] is set to BINary and CALCulate:CDPower:PCKM is set to OFF,
each value in the trace is either 0.0 or 1.0.
•
If :CALCulate:CDPower:DBITs[:FORMat] is set to TRIState and CALCulate:CDPower:PCKM is set to OFF,
each value in the trace is one of 0.0, 1.0 and –1.0
where “–1.0” represents DTX (Discontinuous Transmission) bit or burst-off bit.
If a channel’s spreading has been done on only I or Q branch, queried data represents the sequence of
corresponding I or Q data.
If a channel’s spreading has been done on both I and Q branch and its modulation scheme is QPSK, queried
data represents alternating I and Q sequences as follows:
1st number = in-phase bit of the 1st I/Q pair
2nd number = quad-phase bit of the 1st I/Q pair
3rd number = in-phase bit of the 2nd I/Q pair
4th number = quad-phase bit of the 2nd I/Q pair
…
(2N – 1)th number = in-phase bit of the Nth I/Q pair
(2N)th number = quad-phase bit of the Nth I/Q pair
where N is the number of the symbols in the measurement period selected by Meas Offset, Meas Interval
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W-CDMA & HSPA Measurement Applications Reference
Summary of Contents for E6640A
Page 80: ...Table of Contents lxxx W CDMA HSPA Measurement Applications Reference ...
Page 188: ...3 Programming the Test Set Common Commands 188 W CDMA HSPA Measurement Applications Reference ...
Page 256: ...5 Mode Functions Mode Setup 256 W CDMA HSPA Measurement Applications Reference ...
Page 324: ...6 System Functions System 324 W CDMA HSPA Measurement Applications Reference ...
Page 369: ...8 Channel Power Measurement Auto Couple W CDMA HSPA Measurement Applications Reference 369 ...
Page 389: ...8 Channel Power Measurement Marker W CDMA HSPA Measurement Applications Reference 389 ...
Page 664: ...9 ACP Measurement Auto Couple 664 W CDMA HSPA Measurement Applications Reference ...
Page 669: ...9 ACP Measurement BW W CDMA HSPA Measurement Applications Reference 669 ...
Page 984: ...9 ACP Measurement View Display 984 W CDMA HSPA Measurement Applications Reference ...
Page 1001: ...10 Spectrum Emission Mask Measurement W CDMA HSPA Measurement Applications Reference 1001 ...
Page 1668: ...12 Code Domain Measurement Auto Couple 1668 W CDMA HSPA Measurement Applications Reference ...
Page 2354: ...14 QPSK EVM Measurement 2354 W CDMA HSPA Measurement Applications Reference ...
Page 2364: ...14 QPSK EVM Measurement Auto Couple 2364 W CDMA HSPA Measurement Applications Reference ...