Chapter 5 Connection Status
LTE Series User’s Guide
77
RFCN This displays the Radio Frequency Channel Number of DL carrier frequency used by the mobile
network to which the Zyxel Device is connecting.
The value depends on the Current Access Technology:
• For GPRS, it is the ARFCN (Absolute Radio-Frequency Channel Number) as specified in 3GPP-
TS.45.005.
• For UMTS, it is the UARFCN (UTRA Absolute Radio-Frequency Channel Number) as specified in
3GPP-TS.25.101.
• For LTE, it is the EARFCN (E-UTRA Absolute Radio-Frequency Channel Number) as specified in
3GPP-TS.36.101.
The value is ‘0’ (zero) or ‘N/A’ if there is no network connection.
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, example -140 dBm.
This parameter is for LTE only. The normal range is -30 to -140. The value is -140 if the Current
Access Technology is not LTE. The value is ‘N/A’ if there is no network connection.
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.
This parameter is for LTE only. The normal range is -30 to -240. The value is -240 if the Current
Access Technology is not LTE. The value is ‘N/A’ if there is no network connection.
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.
This parameter is for UMTS only. The normal range is -30 to -120. The value is -120 if the Current
Access Technology is not UMTS. The value is ‘N/A’ if there is no network connection.
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, example -240 dB.
This parameter is for UMTS only. The normal range is -30 to -240. The value is -240 if the Current
Access Technology is not UMTS or there is no network connection.
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.
This parameter is for LTE only. The value is ‘0’ (zero) or ‘N/A’ if the Current Access Technology is
not LTE or there is no network connection.
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].
This parameter is for UMTS or GPRS. The value is ‘0’ (zero) if the Current Access Technology is not
UMTS or GPRS. The value is ‘N/A’ if there is no network connection.
Table 14 Cellular Info: Detailed Information
LABEL DESCRIPTION
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