Anritsu 3GPP, Руководство по измерениям

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TD-LTE Signal Analyzer 6-5 TD-LTE Over-the-Air (OTA) Measurements
3GPP MG PN: 10580-00234 Rev. Y 6-17
6-5 TD-LTE Over-the-Air (OTA) Measurements
Scanner, Tx Test, Antenna Status and Mapping are measurements taken over the air. EMF
measurements are available only with Option 444.
Antenna Status and the PBCH Modulation Results table are displayed when the
Show Mod
Results
are set
On
for Scanner and Tx Test measurements. The PBCH Modulation Results
table is the same numeric results table displayed in LTE Modulation Constellation and
Control Channel Power measurements.
Antenna Status
The Antenna Status indicator shows the number of antennas detected and which one is
currently being measured. In OTA Measurements, the Antenna Status is displayed when
Show Mod Results
is
On
for
Scanner
and
Tx Test
.
Scanner
The Scanner measurement scans for the presence of up to 6 cell IDs and the following
measurements.
Cell ID, Sector ID, Group ID
Identifying information sent by the transmitter in the sync signal.
S-SS Power
Secondary Sync Signal power is displayed in dBm or Watts. The secondary sync signal is used
to obtain frame synchronization and cell identity. S-SS Power contains information needed
for cell search.
RSRP
Reference Signal Received Power. Provides the UE with essential information about the
strength of cells from which path loss can be calculated and used for determining optimum
power settings for operating networks. RSRP is used in both idle and connected states.
RSRP is used as a parameter in multi-cell scenarios.
RSRQ
Reference Signal Receive Quality. Provides additional information when RSRP is not
sufficient to make a reliable handover or cell reselection decision. RSRP is the ratio between
RSRP and RSSI measured in dB.
SINR
Signal-to-Inference Noise Ratio in dB.
Dominance
Dominance is the ratio of the power for the largest signal to the sum of all other signals found,
in dB.