ZyXEL Communications NR/FWA Outdoor Series User Manual page 218

Table 89 System Monitor > Cellular WAN Status (continued)
LABEL DESCRIPTION
RSRP This displays the Reference Signal Receive Power (RSRP), which is the average received power
of all Resource Element (RE) that carry cell-specific Reference Signals (RS) within the specified
bandwidth.
The received RSRP level of the connected E-UTRA cell, in dBm, is as specified in 3GPP-TS.36.214.
The reporting range is specified in 3GPP-TS.36.133.
An undetectable signal is indicated by the lower limit, for example, -140 dBm.
The normal range is -44 to -140. The signal is better when the value is closer to -44.
RSRQ This displays the Reference Signal Receive Quality (RSRQ), which is the ratio of RSRP to the E-UTRA
carrier RSSI and indicates the quality of the received reference signal.
The received RSRQ level of the connected E-UTRA cell, in 0.1 dB, is as specified in 3GPP-TS.36.214.
An undetectable signal is indicated by the lower limit, example -240.
The normal range is -3 to -20. The signal is better when the value is closer to -3.
SINR (dB) This displays the Signal to Interference plus Noise Ratio (SINR) in dB. This is also a measure of signal
quality and used by the UE (User Equipment) to calculate the Channel Quality Indicator (CQI)
that it reports to the network. A negative value means more noise than signal.
RSCP This displays the Received Signal Code Power, which measures the power of channel used by
the Zyxel Device.
The received signal level, in dBm, is of the CPICH channel (Ref. 3GPP TS 25.133). An
undetectable signal is indicated by the lower limit, example -120 dBm
EcNo This displays the ratio (in dB) of the received energy per chip and the interference level.
The measured EcNo is in 0.1 dB and is received in the downlink pilot channel. An undetectable
signal is indicated by the lower limit, for example, –240 dB.
Primary This displays a unique scrambling code used by the Nebula Device to identify a base station in a
Scrambling cellular network.
Code
A primary scrambling code is the product of the scrambling code and 16. Therefore, the primary
scrambling code set contains all multiples of 16 from 0 through 8176.
Note: This only appears in UMTS mode. Otherwise, this field is blank.
LAC This displays the 2-octet Location Area Code (LAC), which is used to identify a location area
within a PLMN.
The LAC of the connected cell is as defined in SIB 1 [3GPP-TS.25.331]. The concatenation of
PLMN ID (MCC+MNC) and LAC uniquely identifies the LAI (Location Area ID) [3GPP-TS.23.003].
RAC This displays the RAC (Routing Area Code), which is used in mobile network "packet domain
service" (PS) to identify a routing area within a location area.
In a mobile network, it uses LAC (Location Area Code) to identify the geographical location for
the old 3G voice only service, and use RAC to identify the location of data service like HSDPA or
LTE.
The RAC of the connected UTRAN cell is as defined in SIB 1 [3GPP-TS.25.331]. The concatenation
of PLMN ID (MCC+MNC), LAC, and RAC uniquely identifies the RAI (Routing Area ID) [3GPP-
TS.23.003].
BSIC The Base Station Identity Code (BSIC), which is a code used in GSM to uniquely identify a base
station.
TAC This displays the Tracking Area Code (TAC), which is used to identify the country of a mobile
subscriber.
The physical cell ID of the connected E-UTRAN cell, is as specified in 3GPP-TS.36.101.
SINR This displays the Signal to Interference plus Noise Ratio (SINR) in dB. This is also a measure of signal
quality and used by the UE (User Equipment) to calculate the Channel Quality Indicator (CQI)
that it reports to the network. A negative value means more noise than signal.
Chapter 23 Cellular WAN Status
NR/FWA Outdoor Series User's Guide
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