GPS simulation using minimal hardware

Hi there all,
and because my first post, congratulations for the forum.
I’m a beginner in the world of radio so I want first to ask is possible to do what I want… then I’ll study how to do it.

What I want is to simulate a GPS position of my home,
in order to use my mobile phone to login on my office work (I work remotely).
Like this, I can login at work office when I’m not exactly on my home position.

Because I so some prices on web for the LimeSDR boards,
please indicate me if you want, the possibility to do this with a minimal hardware cost.
I don’t need to do other radio thinks… I don’t need to receive other RF freq.
I just need to simulate the GPS for about 20 seconds until I login in my work office remotely.

Thanks a lot all