Report Jamming Status Via Urc; Report Jamming Status Via Urc Periodically; Configure Optimized Detection Parameters - Quectel WCDMA Application Note

UMTS/HSPA Module Series
WCDMA Jamming Detection Application Note

2.1.1. Report Jamming Status via URC

After Jamming Detection function is enabled by AT+QJDR=1, and URC output is enabled by command
AT+QJDCFG="URC",1. The Jamming Detection function can work well with the default settings. If
jamming is detected, the module will report "+QJDR: JAMMED" through URC port. If jamming is removed,
the module will report "+QJDR: NOJAMMING" through URC port. If URC of this function is not reported,
query whether the jamming status is available or not by "AT+QJDR?". For detailed details, please refer to
Chapter 4.1.

2.1.2. Report Jamming Status via URC Periodically

There are two ways to report URC for indicating jamming status. One is reporting URC only once as
described in section 2.1.1; the other is reporting URCs periodically. Firstly, enable the Jamming Detection
function of Quectel module by AT+QJDR=1 and AT+QJDCFG="URC",1, and then set the <period> by
AT+QJDCFG. If jamming is detected, the module will report a URC "+QJDR: JAMMED" through URC
port every <period> seconds. If jamming is removed, the module will report "+QJDR: NOJAMMING"
through URC port. For more details, please refer to Chapter 4.2.

2.2. Configure Optimized Detection Parameters

Quectel Jamming Detection supports to optimize the detection conditions by configuring <mnl> and other
parameters of AT+QJDCFG. To detect and report the jamming, some basic conditions are verified.
WCDMA_Jamming_Detection_Application_Note Confidential / Released 6 / 13