Y9071B Datasheet, PDF (19/29 Pages) Keysight Technologies – Measurement Applications For the E6640A EXM Wireless Test Set

19 | Keysight | Measurement Applications for the E6640A EXM Wireless Test Set - Solution Brochure
Receiver test
Keysight N7617B Signal Studio helps you simplify WLAN signal creation for receiver measurement and the EXM TRX provides support
for the transmission of WLAN RF signals from the vector signal generator to the DUT. The number of received packets can be read with
the chipset vendor’s control software.
Table 9. Receiver measurements supported by EXM
IEEE802.11a IEEE802.11b IEEE802.11g
18.3.10.2
17.4.8.2
19.5.2
18.3.10.3
17.4.8.4
19.5.3
18.3.10.4
18.3.10.5
17.4.8.3
19.5.4
IEEE 802.11p
18.3.10.2
18.3.10.3
18.3.10.4
18.3.10.5
IEEE802.11n
20.3.21.1
20.3.21.2
20.3.21.3
20.3.22.4
IEEE802.11ac
22.3.19.1
22.3.19.2
22.3.19.3
22.3.19.4
Receiver test items
Receiver minimum input level sensitivity
Receiver adjacent channel rejection1
Nonadjacent channel rejection1
Receiver maximum input level
802.11ac 80+80 MHz test solution
The 802.11ac standard specifies two ways to achieve the highest data rate: a single
160-MHz contiguous channel (in many geographies, only two or three such channels
are available), or two non-contiguous 80-MHz channels (i.e. a 160-MHz non-contiguous
channel). In the latter mode of operation, a special spectral mask is defined. Also note
that the two 80-MHz channels used may have a number of different channel spacing
between them.
R&D
DVT
Manufacturing
True MIMO
Switched MIMO
Implicit Tx beamforming calibration
Figure 12. EXM provides comprehensive MIMO
solutions across lifecycle
In addition, EXM can support measurements on 2x2 MIMO, non-contiguous 80+80 MHz
signals. This feature of 802.11ac WAVE 2 increases data rate with spatial multiplexing
and spectrum efficient usage. Figure 11 shows the constellation and EVM numerical
results for two streams on two different frequency segments. EXM can also help you
verify devices for SISO implementations of 80+80 MHz. Contact Keysight for more
information on how to configure these measurements.
WLAN MIMO test solutions
EXM provides comprehensive MIMO measurement solutions for WLAN MIMO devices
across the lifecycle from research, development, and verification to manufacturing. Test
solutions include:
–– Switched MIMO measurements for cost effective manufacturing testing of WLAN
MIMO devices
–– True MIMO measurements with multiple TRX channels for design and validation of
WLAN MIMO devices
–– Detailed MIMO measurement results per stream and per channel: Modulation
analysis, IQ offset, frequency error, cross talk, and more
–– Support Implicit transmitter beamforming calibration test
Figure 11. Constellation and EVM
numerical results for frequency
segment 1, stream1, frequency
segment 1, stream2, frequency
segment 2, stream1, and frequency
segment 2, stream2