Question on osmo-trx mcbts

Hi Thomas, it's been some time, hope you're doing fine! Today on IRC we were collectively wondering about one detail in the osmo-trx mcbts implementation that has been there from day one: Your're creating the Channelizer and Synthesis class for four channels of 800kHz within the 3.2Mbps wideband-channel. So far so good. But why does the code ever only use up to three of them? And why is there a specific re-ordering, see radioInterfaceMulti.cpp in getLogicalChan() ? It would be great if you could share your thoughts on that. To me, it looks like the constraint to 3 channels is arbitrary and we should just as well be able to use all four? Thanks, Harald -- - Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)