Another 'quick and easy' question perhaps. The SDCCH has a fixed bit & burst rate, but because L3 messages are mostly processed in synchronous manner, there will be idle time when no messages need be sent. The BST is supposed to work at a constant power level, therefore these TDMA frames are filled with dummy bursts.
But what happens when ciphering is enabled ? Will the dummy bursts still be all 0 bits, or will they be encrypted ? So far I have only had access to L3 logs that shows there is a time gap between individual messages, but do we know what those gaps contain ? I would imagine that signal processing on the receiving side will be easiest if the dummy bursts are also encrypted, otherwise handling error bits in a a received dummy burst becomes rather complicated. F _______________________________________________ A51 mailing list A51@lists.reflextor.com http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51
