EM7304 at!gstatus? information

IoT Modules MC/EM Series
1

Hi all,

I use at!gstatus? to get signal information.

How can I explain :
RxM RSSI C0: -106 RxD RSSI C0: -106
RxM RSSI C1: -106 RxD RSSI C1: -106

How can I define C0 and C1?

Thanks,
Albert

!GSTATUS:
Current Time:  217              Temperature: 39
Bootup Time:   5                Mode:        ONLINE
System mode:   WCDMA            PS state:    Attached
WCDMA band:    WCDMA 2100
WCDMA channel: 10613
GMM (PS) state:REGISTERED       NORMAL SERVICE
MM (CS) state: IDLE             NORMAL SERVICE

WCDMA L1 state:L1M_DCH          LAC:         238F (9103)
RRC state:   CELL_DCH           Cell ID:     006E5A25 (7232037)
RxM RSSI C0:   -106             RxD RSSI C0: -106
RxM RSSI C1:   -106             RxD RSSI C1: -106
2

Hi,

"How can I explain :
RxM RSSI C0: -106 RxD RSSI C0: -106
RxM RSSI C1: -106 RxD RSSI C1: -106

How can I define C0 and C1?"

Please refer to below for your question

  • RxM: receive on main
  • RxD: receive on diversity

About “main” and “diversity”, please refer to attached file for details

  • RSSI: Received Signal Strength Indicator. This parameter is defined by 3GPP, please refer to file for more ts_136214v090100p.pdf (108.7 KB)

  • C0 and C1: Carrier 0(C0) and carrier (C1) are different cells on a dual-carrier tower.
    When the module is on PS mode, it goes to “DC-HSPA+” (dual carrier)
    !GSTATUS: returns
    RxM RSSI C0: -106 RxD RSSI C0: -106
    RxM RSSI C1: -106 RxD RSSI C1: -106

If there’s no data in transmission between the module and the tower, it goes to “HSPA+” (singe carrier), there’s no meaningful C1(carrier 1) value

They’re also described by 3GPP. Please refer to this link for more details

Please help to tick “Solution” if your question is answered.

Thanks,

3

Hi Vianney,

Thank you for your reply.

The answer is that very help for me.

Albert