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Sipos Csaba sipos.csaba at kvk.uni-obuda.huDear list, I recently integrated nanoBTS under OpenBSC. They work fine, but I encountered the following limitations. 1. Dynamic PDCH/TCH switching is allowed to be configured, but not working. The timeslots are stuck in TCH/F mode and never converted to PDCH. Is there any trick I need to do other than setting the channel type to TCH/F_PDCH? 2. No matter what I do, the BTS only schedules one uplink timeslot. If I understand it correctly, the PCU implementation in this case is inside the NanoBTS. Is there a way to change for example an NVRAM parameter to allow a more balanced UL/DL timeslot ratio? 3. Multi-TRX setup: it is quite a limitation that you cannot use any timeslots as PDCH in a multi-TRX setup on the secondary or third carriers at all. I don't think there is any solution to that, but it worth noting. I hope someone can point me in the right direction with dyn PDCH switching and the single UL TS issue. Thanks! Regards, Csaba