Transform param name to tagname in uppercase

Hello,

I have not been in touch with XSLT for a couple of years now and this simple transformation I can not describe in XSLT:
<params>
  <param name="somename">value</param>
</params>

should be transformed to:

<INPUT>
  <SOMENAME>value</SOMENAME>
</INPUT

So basically the parameter "name" should be transformed to a tag in the final XML.

Can anyone give me a starting point how to do that?

Thanks in advance,
Phil