Question about RNC Radio Network configuration???

[Nahim]

Hi Everybody..

This is my question

What is RU10, RU20... RU40 in N*O*KIA
is it a software for nodeB ?? and what are the similars to S*iemens, H*uawei. Z*TE, and ERIC*SSON??

I´ve been looking for the dictionary of parameters or manual engineering paremters manual and I just found them when I write RU10, RU20 but only for NOKIA...etc...