EM7565 / carrier aggregation info
Reinhard Speyerer
rspmn at arcor.de
Sat Dec 2 20:37:35 UTC 2017
On Sat, Dec 02, 2017 at 08:13:42AM +0100, Sebastian Sjoholm wrote:
> Hi,
>
> Here are some CA printouts from LM940, MC7455 and EM7565. As can be seen in
> the MC7455 GSTATUS printout, that without activity the CA will not be
> active, it seems to "activate" once the data start moving. Which is
> probably a resource saving thing.
>
> With the EM7565 I don't even know which CA combinations it support, I guess
> it must be plenty, but I have no info.
Hi Sebastian,
thank you for providing the AT and qmicli output.
For the MC74xx/EM74xx it is possible to list the support CA combinations
with AT!LTECA?, perhaps this works for the EM7565 too.
Please see my comments below.
> Telit LM940
>
> The CA printout when there are no activities on the modem;
>
> # qmicli -d /dev/cdc-wdm0 --nas-get-lte-cphy-ca-info
> [/dev/cdc-wdm0] Successfully got carrier aggregation info
> DL Bandwidth: '20'
> Secondary Cell Info
> Physical Cell ID: '4'
> RX Channel: '2950'
> DL Bandwidth: '20'
> LTE Band: 'eutran-7'
> State: 'deconfigured'
> Primary Cell Info
> Physical Cell ID: '5'
> RX Channel: '3148'
> DL Bandwidth: '20'
> LTE Band: 'eutran-7'
> Secondary Cell index: '1'
> #
>
> The CA printout when there are activities on the modem (FTP download);
>
> # qmicli -d /dev/cdc-wdm0 --nas-get-lte-cphy-ca-info
> [/dev/cdc-wdm0] Successfully got carrier aggregation info
> DL Bandwidth: '20'
> Secondary Cell Info
> Physical Cell ID: '4'
> RX Channel: '2950'
> DL Bandwidth: '20'
> LTE Band: 'eutran-7'
> State: 'activated'
> Primary Cell Info
> Physical Cell ID: '5'
> RX Channel: '3148'
> DL Bandwidth: '20'
> LTE Band: 'eutran-7'
> Secondary Cell index: '1'
> #
>
> Sierra MC7455
>
> CA printout without activity.
>
> at!gstatus?
> !GSTATUS:
> Current Time: 1899464 Temperature: 33
> Reset Counter: 24 Mode: ONLINE
> System mode: LTE PS state: Attached
> LTE band: B7 LTE bw: 20 MHz
> LTE Rx chan: 3148 LTE Tx chan: 21148
> LTE CA state: NOT ASSIGNED
> EMM state: Registered Normal Service
> RRC state: RRC Idle
> IMS reg state: No Srv
> PCC RxM RSSI: -54 RSRP (dBm): -80
> PCC RxD RSSI: -57 RSRP (dBm): -83
> Tx Power: 0 TAC: 00C9 (201)
> RSRQ (dB): -6.0 Cell ID: 01194703 (18433795)
> SINR (dB): 28.4
> OK
>
> # qmicli -d /dev/cdc-wdm0 --nas-get-lte-cphy-ca-info
> [/dev/cdc-wdm0] Successfully got carrier aggregation info
> DL Bandwidth: '20'
> Secondary Cell Info
> Physical Cell ID: '4'
> RX Channel: '2950'
> DL Bandwidth: '20'
> LTE Band: 'eutran-7'
> State: 'deconfigured'
> Primary Cell Info
> Physical Cell ID: '5'
> RX Channel: '3148'
> DL Bandwidth: '20'
> LTE Band: 'eutran-7'
> Secondary Cell index: '1'
> #
>
> CA printout with activity.
>
> at!gstatus?
> !GSTATUS:
> Current Time: 1899489 Temperature: 34
> Reset Counter: 24 Mode: ONLINE
> System mode: LTE PS state: Attached
> LTE band: B7 LTE bw: 20 MHz
> LTE Rx chan: 3148 LTE Tx chan: 21148
> LTE CA state: ACTIVE LTE Scell band:B7
> LTE Scell bw:20 MHz LTE Scell chan:2950
> EMM state: Registered Normal Service
> RRC state: RRC Connected
> IMS reg state: No Srv
> PCC RxM RSSI: -49 RSRP (dBm): -80
> PCC RxD RSSI: -53 RSRP (dBm): -83
> SCC RxM RSSI: -52 RSRP (dBm): -83
> SCC RxD RSSI: -56 RSRP (dBm): -85
> Tx Power: -11 TAC: 00C9 (201)
> RSRQ (dB): -8.0 Cell ID: 01194703 (18433795)
> SINR (dB): 30.0
> OK
>
> # qmicli -d /dev/cdc-wdm0 --nas-get-lte-cphy-ca-info
> [/dev/cdc-wdm0] Successfully got carrier aggregation info
> DL Bandwidth: '20'
> Secondary Cell Info
> Physical Cell ID: '4'
> RX Channel: '2950'
> DL Bandwidth: '20'
> LTE Band: 'eutran-7'
> State: 'activated'
> Primary Cell Info
> Physical Cell ID: '5'
> RX Channel: '3148'
> DL Bandwidth: '20'
> LTE Band: 'eutran-7'
> Secondary Cell index: '1'
> #
Looks OK to me: AT!GSTATUS? output is consistent with qmicli
--nas-get-lte-cphy-ca-info for the MC7455 and the qmicli output is the
same for the LM940 and the MC7455.
> Sierra EM7565
>
> CA printout without activity.
>
> at!gstatus?
> !GSTATUS:
> Current Time: 415322 Temperature: 30
> Reset Counter: 1 Mode: ONLINE
> System mode: LTE PS state: Attached
> LTE band: B7 LTE bw: 20 MHz
> LTE Rx chan: 3148 LTE Tx chan: 21148
> LTE SSC1 state:NOT ASSIGNED
> LTE SSC2 state:NOT ASSIGNED
> LTE SSC3 state:NOT ASSIGNED
> LTE SSC4 state:NOT ASSIGNED
> EMM state: Registered Normal Service
> RRC state: RRC Idle
> IMS reg state: No Srv
> PCC RxM RSSI: -52 PCC RxM RSRP: -78
> PCC RxD RSSI: -53 PCC RxD RSRP: -79
> Tx Power: -- TAC: 00c9 (201)
> RSRQ (dB): -6.1 Cell ID: 01194703 (18433795)
> SINR (dB): 30.0
> OK
>
> # qmicli -d /dev/cdc-wdm0 --nas-get-lte-cphy-ca-info
> [/dev/cdc-wdm0] Successfully got carrier aggregation info
> DL Bandwidth: '20'
> Secondary Cell Info
> Physical Cell ID: '4'
> RX Channel: '2950'
> DL Bandwidth: '20'
> LTE Band: 'eutran-8'
> State: 'deactivated'
> Primary Cell Info
> Physical Cell ID: '5'
> RX Channel: '3148'
> DL Bandwidth: '20'
> LTE Band: 'eutran-8'
> Secondary Cell index: '1'
> #
>
> CA printout with activity
>
> at!gstatus?
> !GSTATUS:
> Current Time: 415334 Temperature: 30
> Reset Counter: 1 Mode: ONLINE
> System mode: LTE PS state: Attached
> LTE band: B7 LTE bw: 20 MHz
> LTE Rx chan: 3148 LTE Tx chan: 21148
> LTE SSC1 state:ACTIVE LTE SSC1 band: B7
> LTE SSC1 bw : Unknown LTE SSC1 chan: 2950
> LTE SSC2 state:NOT ASSIGNED
> LTE SSC3 state:NOT ASSIGNED
> LTE SSC4 state:NOT ASSIGNED
> EMM state: Registered Normal Service
> RRC state: RRC Connected
> IMS reg state: No Srv
> PCC RxM RSSI: -59 PCC RxM RSRP: -77
> PCC RxD RSSI: -60 PCC RxD RSRP: -80
> SCC1 RxM RSSI: -54 SCC1 RxM RSRP: -80
> SCC1 RxD RSSI: -55 SCC1 RxD RSRP: -81
> Tx Power: -30 TAC: 00c9 (201)
> RSRQ (dB): -7.8 Cell ID: 01194703 (18433795)
> SINR (dB): 29.2
> OK
>
AT!GSTATUS looks OK except for the "LTE SSC1 bw : Unknown" part.
> # qmicli -d /dev/cdc-wdm0 --nas-get-lte-cphy-ca-info
> [/dev/cdc-wdm0] Successfully got carrier aggregation info
> DL Bandwidth: '20'
> Secondary Cell Info
> Physical Cell ID: '4'
> RX Channel: '2950'
> DL Bandwidth: '20'
> LTE Band: 'eutran-8'
> State: 'activated'
> Primary Cell Info
> Physical Cell ID: '5'
> RX Channel: '3148'
> DL Bandwidth: '20'
> LTE Band: 'eutran-8'
> Secondary Cell index: '1'
> #
qmicli output looks OK except for the reported LTE Band values.
Could you please add "qmicli -v -d /dev/cdc-wdm0 --nas-get-lte-cphy-ca-info"
output when there are activities on the modem for the LM940 and the EM7565?
With -v the qmicli output also contains the raw TLV contents in hex which
should help Bjørn to add proper qmicli --nas-get-lte-cphy-ca-info support
for the LM940 and the EM7565.
Regards,
Reinhard
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