16th February 2010 at 09:54
#51413
Pix
Guest
GCH is a nibble located on Ater PS and Abis interface, that carries RLC-MAC blocks.
They don’t belong to Gb interfac, they are not related to SGSN.
The GCH is basically a logical link between the PCU (MFS in alcatel) and the BTS.
pix