Enabling HSDPA?

The SparqEE CELLv1.0 device.
jsharper
Posts: 2
Joined: Tue Sep 02, 2014 8:55 pm

Enabling HSDPA?

Postby jsharper » Sun Jun 25, 2017 9:43 am

Hello

I can get the CELLv1.0 device to connect to T-Mobile US (310260) with UMTS, but I can't seem to get it to connect with HSDPA. I'm in Gilbert, Arizona, USA in an area with decent signal coverage.

Code: Select all

at+csq
+csq: 15,99

OK
at*cnti?
*CNTI: 0,UMTS

OK
at*CNTI=1
*CNTI: 1,UMTS

OK
AT*CNTI=2
*CNTI: 2, GSM, GPRS, EDGE, UMTS, HSDPA

OK


It seems to think that the network only supports UMTS, but that's surely not the case with T-Mobile US. I've used this sim card before to get HSPA, (as well as HSPA+ and LTE) connections with other devices.

My signal seems decent at -83dBm.

Is there an AT command I'm missing that I can send to enable or force HSDPA?

My concern here is mainly about latency; HSPA has lower latency than UMTS. However, it would also be nice to take advantage of the "DL3.6Mbps HSDPA" supported by the module - I'm only able to get about 500-700kbit/sec downstream.

Thanks in advance for any hints or tips.

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