Rx height (mobile equipment height)

Hi,

I am new with this things, if my location is in Europe and we are using e-gsm, how can I use this guidance? Maybe is an elementary question, but I need some hepl!

thanks in advance

BR
bjushka

Thanks for the information paraHO, you were very helpful.

BR
bjushka

Hi pix,

In the guidance rx height is classified for two areas: urban area ( 1.5 m on the street and 20m for buildings) and rural area (1.5 m on the street and 15m per buildings). So I’m thinking to use these values for Rx height, but I am not quite sure if I need to classify the BTSs according to areas where they are located!!!

BR
bjushka

bjushka
“but I am not quite sure if I need to classify the BTSs according to areas where they are located!!!”

I would say yes, but I wont suggest how you run your planning tool but perhaps you might want to understand some reasons for classifying BTS located area e.g. how networks react to MSs for radio link management?

If you get time have a look at:

ETSI TR 101 639 V8.0.0 (2000-04)
Digital cellular telecommunications system (Phase 2+); Radio link management in hierarchical networks (GSM 05.22 version 8.0.0 Release 1999)

Read in the standard about Dwell Time (algorithm description created by France Telecom/CNET)

Also a useful guide: microcell coverage doesn’t go around corners where the microcell-BTS is to be wall-mounted.

Reading about terrain models can help when thinking about BTS installation and location.

One noteworthy model produced by British Telecommunications plc consisted of 10 categories [0-9]:
Category Description of the Terrain:
0 Rivers, lakes, and seas
1 Open rural areas (eg fields and heath-land with few trees)
2 Rural areas, similar to the above, but with wooded areas
3 Wooded or forested rural areas
4 Hilly or mountainous rural areas
5 Suburban areas, low-density dwellings, and modern industrial estates
6 Suburban areas, high-density dwellings (eg council estates)
7 Urban areas with buildings up to four storeys with gaps in-between
8 Higher density urban areas in which some buildings have more than four storeys
9 Dense urban areas in which most of the buildings have more than four stories and some can be classed as “skyscrapers”

BR
paraHO

bjushka
2m can be used for ground tests, but that wasn’t your question which was the use of a ‘planning tool’.

But I would suggest you have a read of GSM0522 and the other standards.

BR
paraHO

Bjushka,

Anyway, your planning tool probably doesn’t handle indoor propagation anyway. I’d stick with 1.5m or 2m (i doubt it makes any difference in the result :)) )

Also, the RNP tool has such a wide uncertainty in the result that the rx height should not be such a concern. More time should be spend calibrating your clutters and your attenuation factors.

cheers
pix