AT+QENG

Query primary serving cell and neighbor cell information. The maximum response time is 300 ms.

Test Command

AT+QENG=?
Response
+QENG: (list of supported <cell_type>s)

Serving Cell

Execute the below Command to query the serving cell information

AT+QENG="servingcell"
Response in LTE mode
+QENG: "servingcell",<state>,"LTE",<is_tdd>,<MCC>,<MNC>,<cellID>,<PCID>,<earfcn>,<freq_band_ind>,<UL_bandwidth>,<DL_bandwidth>,<TAC>,<RSRP>,<RSRQ>,<RSSI>,<SINR>,<CQI>,<tx_power>,<srxlev>

Example:

mmcli -m 2 --command="AT+QENG=\"servingcell\""

+QENG: "LTE","FDD",460,00,81EF7D0,78,1300,3,5,5,1806,-68,-8,-38,15 +QENG: "NR5G-NSA", 460,00,570,-90,64,-11

Response in WCDMA mode
+QENG: "servingcell",<state>,"WCDMA",<MCC>,<MNC>,<LAC>,<cellID>,<uarfcn>,<PSC>,<RAC>,<RSCP>,<ecio>,<phych>,<SF>,<slot>,<speech_code>,<comMod>
Response in EN-DC mode
+QENG: "servingcell",<state> 
+QENG: "LTE",<is_tdd>,<MCC>,<MNC>,<cellID>,<PCID>,<earfcn>,<freq_band_ind>,<UL_bandwidth>,<DL_bandwidth>,<TAC>,<RSRP>,<RSRQ>,<RSSI>,<SINR>,<CQI>, <tx_power>,<srxlev> 
+QENG: "NR5G-NSA",<MCC>,<MNC>,<PCID>,<NR5G_RSRP>,<NR5G_SINR>,<NR5G_RSRQ>

Neighbour Cell

Write Command Query the information of neighbor cell tower information.

AT+QENG="neighbourcell"
Response In LTE mode
[+QENG: "neighbourcell intra","LTE",<earfcn>,<PCID>,<RSRQ>,<RSRP>,<RSSI>,<SINR>,<srxlev>,<cell_resel_priority>,<s_non_intra_search>,<thresh_serving_low>,<s_intra_search> ...]
[+QENG: "neighbourcell inter","LTE",<earfcn>,<PCID>,<RSRQ>,<RSRP>,<RSSI>,<SINR>,<srxlev>,<cell_resel_priority>,<threshX_low>,<threshX_high> ...]
[+QENG: "neighbourcell","WCDMA",<uarfcn>,<cell_resel_priority>,<thresh_Xhigh>,<thresh_Xlow>,<PSC>,<RSCP><ecno>,<srxlev> ...]

Example:

mmcli -m 2 --command="AT+QENG=\"neighbourcell\""

+QENG: "neighbourcell intra","LTE",38950,276,-3,-88,-65,0,37,7,16,6,44 +QENG: "neighbourcell inter","LTE",39148,-,-,-,-,-,37,0,30,7,-,-,-,- +QENG: "neighbourcell inter","LTE",37900,-,-,-,-,-,0,0,30,6,-,-,-,-

Response in WCDMA mode
[+QENG: "neighbourcell","WCDMA",<uarfcn>,<srxqual>,<PSC>,<RSCP>,<ecno>,<set>,<rank>,<srxlev> ...]
[+QENG: "neighbourcell","LTE",<earfcn>,<cellID>,<RSRP>,<RSRQ>,<s_rxlev> ...]

Parameters

"-" or - indicates the parameter is invalid under the current condition.

ParameterStringDescription

<celltype>

"servingcell" "neighbourcell"

The information of 3G/4G/5G serving and neighbour cell towers.

<state>

"SEARCH"

Searching but could not (yet) find a suitable cell.

"LIMSRV"

Camping on a cell but has not registered.

"NOCONN"

Camping on a cell has registered on the network, and it is in idle mode.

"CONNECT"

Camping on a cell and registered on the network, a call is in progress.

<is_tdd>

"TDD" & "FDD"

The LTE network mode.

<MCC>

Number format

Mobile Country Code (first part of the PLMN code).

<MNC>

Number format

Mobile Network Code (second part of the PLMN code).

<LAC>

Integer type

Location Area Code. The parameter determines the two bytes' location area code in hexadecimal format (e.g., 00C1 equals 193 in decimal) of the scanned cell. Range: 0–65535.

<cellID>

Cell tower ID

The parameter determines the 16-bit (GSM) or 28-bit (UMTS) cell ID, which range is 0–0xFFFFFFF.

<PCID>

Number format

Physical cell ID.

<uarfcn>

UTRA-ARFCN

The parameter determines the UTRA-ARFCN of the cell that was scanned.

<earfcn>

E-UTRA-ARFCN

The parameter determines the E-UTRA-ARFCN of the cell that was scanned.

<freq_band_ind>

E-UTRAN bands

E-UTRA frequency band (see 3GPP 36.101)

<UL_bandwidth>

Integer type

UL bandwidth.

0 -- 1.4 MHz

1 -- 3 MHz

2 -- 5 MHz

3 -- 10 MHz

4 -- 15 MHz

5 -- 20 MHz

<DL_bandwidth>

Integer type

DL bandwidth.

0 -- 1.4 MHz

1 -- 3 MHz

2 -- 5 MHz

3 -- 10 MHz

4 -- 15 MHz

5 -- 20 MHz

<TAC>

Number format

Tracking Area Code See 3GPP 23.003 Section 19.4.2.3

<PSC>

Number format

The parameter determines the primary scrambling code of the cell that was scanned.

<RAC>

Integer type

Routing Area Code. Range: 0–255.

<RSCP>

Number format

The parameter determines the Received Signal Code Power level of the scanned cell.

<ecio>

Number format

Carrier to noise ratio in dB = measured Ec/Io value in dB.

<RSRP>

Negative number

Indicates the signal of Reference Signal Received Power in both LTE and 5G-NR modes.

Range: -140 to -44 dBm.

The closer to -44, the better the signal is. The closer to -140, the worse the signal is.

<RSRQ>

Negative number

Indicates the signal of Reference Signal Received Quality in both LTE and 5G modes.

Range: -20 to -3 dB.

The closer to -3, the better the signal is. The closer to -20, the worse the signal is.

<RSSI>

Number format

Received Signal Strength Indication. LTE only.

<SINR>

Number format

Indicates Signal-to-Interface plus Noise Ratio.

The conversion formula for actual SINR is

Y = (1/5) × X × 10 - 20

(X is the value queried by AT+QENG, and Y is the SINR value).

Range: -20 to 30 dB.

<CQI>

Integer type

Channel Quality Indication. Range: 1–30.

<tx_power>

Number format

TX power value in 1/10 dBm. It is the maximum of all UL channel TX power. The <tx_power> value is only meaningful when the device is in traffic.

<phych>

Integer type

Physical channel.

0 -- DPCH

1 -- FDPCH

<SF>

Integer type

They are spreading factor.

0 -- SF_4

1 -- SF_8

2 -- SF_16

3 -- SF_32

4 -- SF_64

5 -- SF_128

6 -- SF_256

7 -- SF_512

8 -- UNKNOWN

<slot>

Integer type

Slot format. 0–16 for DPCH

0–9 for FDPCH

<speech_code>

Number format

Destination number on which call is to be deflected.

<comMod>

Number format

Compress mode.

0 -- Not support compress mode

1 -- Support compress mode

<srxqual>

Number format

The receiver automatically gains control of the camped frequency.

<ecno>

Number format

Carrier to noise ratio in dB = measured Ec/Io value in dB.

<set>

Integer type

3G neighbor cell set.

1 -- Active set

2 -- Synchronous neighbor set

3 -- Asynchronous neighbor set

<rank>

Number format

The rank of this cell as a neighbor for inter-RAT cell reselection.

<srxlev>

Number format

Suitable receive level for inter frequency cell.

<threshX_low>

-

To be considered for reselection. An evaluated lower-priority cell's suitable receive level value must be greater than this value.

<threshX_high>

-

To be considered for reselection. An evaluated higher-priority cell's suitable receive level value must be greater than this value.

<thresh_Xhigh>

-

Reselection threshold for high priority layers.

<thresh_Xlow>

-

Reselection threshold for low priority layers.

<cpich_rscp>

-

The absolute power level of the common pilot channel as received by the UE in dBm ×10.

<cpich_ecno>

-

The ratio of the received energy per PN chip for the common pilot channel to the total received power spectral density at the UE antenna connector in dB × 10.

<srxlev>

-

Select receive level value for base station in dB.

<cell_resel_priority>

Number format

Cell reselection priority. Range: 0–7.

<s_non_intra_search>

-

Threshold to control non-intra frequency searches.

<thresh_serving_low>

-

Specifies the suitable receive level threshold (in dB) used by the UE on the serving cell when reselecting towards a lower priority RAT/frequency.

<s_intra_search>

-

Cell selection parameter for the intra frequency cell.

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