Dear 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
On 07 Jun 2015, at 19:13, Sipos Csaba sipos.csaba@kvk.uni-obuda.hu wrote:
- 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?
no supported in master. Andreas has done some work on it but we had one negative results from a customer using that branch.
- 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?
- 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.
no idea, that is the issue with proprietary solutions.
-
Holger Freyther -
Sipos Csaba