On Thu, Aug 11, 2016 at 2:50 AM, Max msuraev@sysmocom.de wrote:
On 08/10/2016 07:35 PM, Tom Tsou wrote:
The 'multi-carrier' approach multiplexes up to 3 ARFCN channels onto a single physical RF channel (side A) on the B210. Channel spacing is fixed at 800 kHz, or 4 ARFCN channels. ARFCN settings from OpenBSC must match accordingly. The '-m' option enables this configuration.
Could you give an example of necessary openbsc and osmo-bts configuration for both cases?
Config files and README are attached. Note that the osmo-trx multi-carrier '-m' option requires UHD master. I'm still backporting the needed settings.
Also note that the above configurations cannot be combined.
So I should not run "./Transceiver52M/osmo-trx -c 2 -g -m"? Only "./Transceiver52M/osmo-trx -c 2 -g" or "./Transceiver52M/osmo-trx -g -m"? Or you referring to the incompatibility of configuration of openbsc? Or Osmobts?
You cannot support, for example, 6 ARFCN operation on B210 using 3 TRX on side A and another 3 TRX on side B.
Whether you use '-c 2 -m' or just '-c 2' depends on whether you want to feed two ARFCN channels through 1 or 2 PA's respectively.
-TT