MC7455 and EM7455 LTE-CA (B1+B3)

IoT Modules MC/EM Series
1

Hello,

Is it possible to enable the MC7455 and the EM7455 for LTE-CA (B1 + B3 / 2100+1800MHz)?
Or by a firmware update?

BR Rene

2

Hello,

i also need LTE-CA with B1+B3.
how can we activate it?

thans

3

Hi,
I also want to ask for carrier aggregation between band 1 and band 3.
Many providers will use band 1 for LTE instead 3G in the next years.

4

Hello,
B1+B3 CA is not supported due to a hardware layout limitation in the design for the EM74xx/MC74xx. This cannot be fixed via a Firmware change.

Thanks & Regards,
Moderator

5

Does the EM7565 support B1+B3 CA?

6

How I can use CA B3+B7?



at!lteca?
Hardware:
LTEB1: B8, 
LTEB2: B2, B5, B12, B29, 
LTEB3: B7, B20, 
LTEB4: B4, B5, B12, B13, B29, 
LTEB5: B2, B4, B30, 
LTEB7: B3, B7, B20, 
LTEB8: B1, 
LTEB12: B2, B4, B30, 
LTEB13: B4, 
LTEB20: B3, B7, 
LTEB25: 
LTEB26: 
LTEB29: 
LTEB30: B5, B12, 
LTEB41: B41, 

Permitted Bands:
LTEB1: B8, 
LTEB2: B2, B5, B12, 
LTEB3: B7, B20, 
LTEB4: B4, B5, B12, B13, 
LTEB5: B2, B4, 
LTEB7: B3, B7, B20,
LTEB8: B1, 
LTEB12: B2, B4, 
LTEB13: B4, 
LTEB20: B3, B7,
LTEB25: 
LTEB26: 
LTEB41: B41, 

Prune_ca_combos:
Empty

OK

if

at!lteca=1
OK

atc response is ok, but at!status CA still NOT ASSIGNED


AT!GSTATUS?
!GSTATUS: 
Current Time:  17610		Temperature: 51
Reset Counter: 1		Mode:        ONLINE         
System mode:   LTE        	PS state:    Attached     
LTE band:      B3     		LTE bw:      15 MHz  
LTE Rx chan:   1475		LTE Tx chan: 19475
LTE CA state:  NOT ASSIGNED
EMM state:     Registered     	Normal Service 
RRC state:     RRC Connected  
IMS reg state: No Srv  		

PCC RxM RSSI:  -53		RSRP (dBm):  -91
PCC RxD RSSI:  -64		RSRP (dBm):  -98
Tx Power:      -1		TAC:         0426 (1062)
RSRQ (dB):     -15.2		Cell ID:     0C63E601 (207873537)
SINR (dB):      0.2


OK