Set command

Syntax:

%CONEVAL

Response syntax:

%CONEVAL: <result>[,<rrc_state>,<energy_estimate>,<rsrp>,<rsrq>,<snr>,<cell_id>,<plmn>,
<phyc_cell_id>,<earfcn>,<band>,<tau_triggered>,<ce_level>,<tx_power>,<tx_repetitions>,
<rx_repetitions>,<dl-pathloss>]

The response parameters and their defined values are the following:

<result>

0 – Connection pre-evaluation successful

1 – Evaluation failed, no cell available

2 – Evaluation failed, Universal Integrated Circuit Card (UICC) not available

3 – Evaluation failed, only barred cells available

4 – Evaluation failed, busy (for example, Global Navigation Satellite System (GNSS) activity)

5 – Evaluation failed, aborted because of higher priority operation

6 – Evaluation failed, not registered

7 – Evaluation failed, unspecified

<rrc_state>

0 – RRC connection in RRC IDLE state during measurements

1 – RRC connection in RRC CONNECTED state during measurements

<energy_estimate>

Relative estimated energy consumption of data transmission compared to nominal consumption. A higher value means smaller energy consumption.

5 – Bad conditions. Difficulties in setting up connections. Maximum number of repetitions might be needed for data.

6 – Poor conditions. Setting up a connection might require retries and a higher number of repetitions for data.

7 – Normal conditions for cIoT device. No repetitions for data or only a few repetitions in the worst case.

8 – Good conditions. Possibly very good conditions for small amounts of data.

9 – Excellent conditions. Efficient data transfer estimated also for larger amounts of data.

<rsrp>

Current Reference Signal Received Power (RSRP) level at the time of the report

–17 – When RSRP < –156 dBm

–16 – When –156 ≤ RSRP < –155 dBm

… … …

–3 – When –143 ≤ RSRP < –142 dBm

–2 – When –142 ≤ RSRP < –141 dBm

–1 – When –141 ≤ RSRP < –140 dBm

0 – When RSRP < –140 dBm

1 – When –140 ≤ RSRP < –139 dBm

2 – When –139 ≤ RSRP < –138 dBm

… … …

95 – When –46 ≤ RSRP < –45 dBm

96 – When –45 ≤ RSRP < –44 dBm

97 – When –44 ≤ RSRP dBm

255 – Not known or not detectable

The index value of RSRP can be converted to decibel with the following formula: Index – 140 = dBm. For example, 95 – 140 = –45 dBm and –16 – 140 = –156 dBm.

<rsrq>

Current Reference Signal Received Quality (RSRQ) level at the time of the report

–30 – When RSRQ < –34 dB

–29 – When –34 ≤ RSRQ < –33.5 dB

… … …

–2 – When –20.5 ≤ RSRQ < –20 dB

–1 – When –20 ≤ RSRQ < –19.5 dB

0 – When RSRQ < –19.5 dB

1 – When –19.5 ≤ RSRQ < –19 dB

2 – When –19 ≤ RSRQ < –18.5 dB

… … …

32 – When –4 ≤ RSRQ < –3.5 dB

33 – When –3.5 ≤ RSRQ < –3 dB

34 – When –3 ≤ RSRQ dB

35 – When –3 ≤ RSRQ < –2.5 dB

36 – When –2.5 ≤ RSRQ < –2 dB

… … …

45 – When 2 ≤ RSRQ < 2.5 dB

46 – When 2.5 ≤ RSRQ dB

255 – Not known or not detectable

The index value of RSRQ can be converted to decibel with the following formula: Index x ½ – 19,5 = dB. For example, (32 x ½) – 19,5 = –4 dB and (–29 x ½) – 19,5 = –34 dB.

<snr>

Current Signal-to-Noise Ratio (SNR) level at the time of the report

0 SNR < -24 dB

1 – When –24 dB <= SNR < –23 dB

2 – When –23 dB <= SNR < –22 dB

: : : :

snr

47 – When 22 dB <= SNR < 23 dB

48 – When 23 dB <= SNR < 24 dB

49 – When 24 dB <= SNR

127 – Not known or not detectable

The index value of SNR can be converted to decibel with the following formula: Index – 24 = dB. For example, 1 – 24 = –23 dB and 47 – 24 = 23 dB.

<cell_id>

String in hexadecimal format. 4-byte Evolved Terrestrial Radio Access Network (E-UTRAN) cell ID.

<plmn>

String. Mobile Country Code (MCC) and Mobile Network Code (MNC) values.

<phys_cell_id>

Integer, 0–503. Physical cell ID of evaluated LTE cell.

<earfcn>

Integer. EARFCN of a cell where the EARFCN is as defined in 3GPP TS 36.101.

<band>

Integer, 1–88. See 3GPP 36.101.

0 when current band information is not available.

<tau_triggered>

0 – User Equipment (UE) is registered on the evaluated cell. Therefore, Tracking Area Update (TAU) is not needed before sending user data.

1 – UE is not registered on the evaluated cell. Therefore, the TAU procedure is initiated before sending user data.

255 – Not known.

<ce_level>

0 – CE Level 0. No repetitions or small number of repetitions.

1 – CE Level 1. Medium number of repetitions.

2 – CE Level 2. Large number of repetitions.

3 – CE Level 3. Very large number of repetitions (not supported).

255 – Invalid or not known.

If <rrc_state> is 0, the CE level is estimated based on RSRP and network configuration.

If <rrc_state> is 1, the CE level corresponds to the currently used CE level.

<tx_power>

Integer, –45 to +23 dBm.

The estimate of TX power depends on the RRC state in which the measurement is taken.

If <rrc_state> is 0, the value corresponds to the estimated TX power level of the first preamble transmission in (N)PRACH.

If <rrc_state> is 1, the value corresponds to the latest physical data channel (N)PUSCH transmission power level.

See 3GPP 36.101 and 3GPP 36.213.

<tx_repetitions>

Integer, 1–2048.

The estimate of TX repetitions depends on the RRC state in which the measurement is taken.

If <rrc_state> is 0, the value corresponds to the initial preamble repetition level in (N)PRACH based on <ce_level> and network configuration.

If <rrc_state> is 1, the value corresponds to the latest physical data channel (N)PUSCH transmission repetition level.

See 3GPP TS 36.331 and 3GPP TS 36.213.

<rx_repetitions>

Integer, 1–2048.

The estimate of RX repetitions depends on the RRC state in which the measurement is taken.

If <rrc_state> is 0, Initial Random Access control channel (M/NPDCCH) reception repetition level based on <ce_level> and network configuration.

If <rrc_state> is 1, the latest physical data channel (N)PDSCH reception repetition level.

See 3GPP TS 36.331 and 3GPP TS 36.213.

<dl-pathloss>

Integer. Reduction in power density in dB.

The following command example requests the pre-evaluation of a connection:

AT%CONEVAL
%CONEVAL: 0,1,5,8,2,14,"011B0780”,"26295",7,1575,3,1,1,23,16,32,130
OK