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Harald Welte laforge at gnumonks.orgHi John, On Thu, Oct 27, 2011 at 12:08:38PM +0800, John Wu wrote: > I want to know how to know GPRS channel coding. GPRS using PDCH, both > MAC/RLC data block and MAC/RLC control block is > transmitted on PDCH, although there is PACCH, PTCH, PTCCH and so on it > still PDCH. then the MAC/RLC control block is coded > with cs-1 channel coding scheme and MAC/RLC data block may be coded with > other channel coding scheme. so when received a > burst how to know what kind of MAC/RLC block it belong to and which channel > coding scheme it used? OpenBSC does not implement a PCU or any other GPRS feature, as it only works with BTS that have a PCU embedded. So far, we don't have any RLC/MAC implementation either on the network nor the handset side. Thus, your message is probably misdirected here. -- - Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)