DC-HSPA Cellular Standard Indicator
According to this Wikipedia entry, this is enhanced version of HSPA+.

Now, reading from the telephony source in JellyBean, depending if its GSM, between the two lines numbered 72 and 107, there is nothing in there that indicates, the automatic detection of the usage of DC-HSPA and is probably being treated as HSPA+ for now in the interim, so its very highly likely that it will show up as a 'H' or '3G'. 

And then again, that's dependent on the compile-time specifications used when the ROM was built, to elect to show '3G', 'H+' or even 'H' on the status bar.