R&S FSL 1xEV-DO BTS Analyzer (Option K84)
1300.2519.12 4.385 E-11
Channel Table
Selects the Channel Occupancy Table analysis.
In this result display all active channels are displayed. Therefore the channel table can contain
up to 146 entries: one entry for Pilot and Preamble channel each, 16 entries for the Data
channel and 128 entries for the MAC channel (64 on the I and Q branch respectively). The
Channel Table result display takes into account the total signal over one slot. Select the slot to
be analyzed in the Select Code Slot field.
The channels are listed in the following order: first the Pilot channel, then the MAC and
Preamble channels and the Data channel last. Within the channel types, the channels are sorted
by ascending code number.
The R&S FSL determines the following parameters for the channels:
– Channel Type
Shows the channel type of the active channel. Possible values are Pilot, MAC and Data. For the
Preamble channel, the length in chips is similarly specified, thus resulting in the following options
for the Preamble channel type: PRE64, PRE128, PRE256, PRE512 or PRE1024.
– CHAN.SF
Channel number including the spreading factor (in the form <Channel>.<SF>).
– Symb Rate
Symbol rate with which the channel is transmitted.
– Modulation / Mapping
Shows the modulation type of the channel. For Data channels possible values are QPSK, 8-PSK
and 16 QAM. For all other channel types possible values are either BPSK-I or BPSK-Q.
– Pwr Abs / Pwr Rel
Specification of the absolute and relative power (referred to the total power in the channel type)
of the channel.
– T Offs
Shows the timing offset between the current channel and the first active channel. It can be
enabled by means of Time Phase Estimation On Off.
– Ph Offs
Phase offset between this channel and the first active channel. It can be enabled by means of
Time Phase Estimation On Off.
Remote: CALC:FEED "XTIM:CDP:ERR:CTAB"
Bitstream
Selects the Bitstream result display.
The result display provides information on the demodulated bits for the selected channel type
and the selected code. It thus takes into account results of a code in the selected channel type
for one slot.
Depending on the symbol rate of the channel type, the number of chips of the channel type, and
the modulation type, a minimum of 4 and a maximum of 400 bits can be contained in a slot
To Next Page
Loading...
