Support #4505
LimeSDR+osmo-bts-trx+gsm-r band set
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Description
I'm using LimeSDR based osmo-bts-trx.And I want to support GSM-R frequency band by them.
I have read the description documents,but not found the GSM-R band config in osmo-bts-trx.So I have two questions about this:
1.Does osmo-bts-trx support GSM-R frequency band?
2.If osmo-bts-trx support GSM-R frequency,what should I do to set band config?
History
#2 Updated by laforge 8 months ago
Just to be clear here: Even if you get the SDR to transmit on an GSM-R ARFCN,
this by far doesn't make the Osmocom stack implement GSM-R. The different
frequency is only one of the many differences between GSM and GSM-R.
- ASCI (VBS, VGCS) including the NCH on Um, and related signaling on Abis and A
- CSD on the control plane as well as the user plane (Um, Abis/RTP, MGCP, MGW, ...)
#3 Updated by laforge 8 months ago
fixeria wrote:
If you check the actual band/frequency mapping [1], you will see that it uses the same frequencies as E-GSM.
This is not correct. GSM-R uses frequencies below E-GSM. This is why GSM-R
handsets have special band filters that are different than normal band filters.
#5 Updated by dingdingYang 7 months ago
laforge wrote:
fixeria wrote:
If you check the actual band/frequency mapping [1], you will see that it uses the same frequencies as E-GSM.
This is not correct. GSM-R uses frequencies below E-GSM. This is why GSM-R
handsets have special band filters that are different than normal band filters.
Thank you very much,谢谢
