BT Business Hub Bridging

[Frank-8C8]

I have a BT Business Hub installed as the main router in the study at the front of my house (connected to a desktop computer). Due to this, it is near impossible to access the wireless at the back of the house. 

However, I also have a secondary identical spare BT Business Hub (2700 HGV). I have found that it is possible to wirelessly bridge the connection in order to extend the wireless range of the main router in the study, but I cannot find a straight forward walkthrough of doing so. I do not want to have ethernet cables trailing through the house so that is not an option I'm afraid.

Some help with allocating IP addresses etc. for the two routers would be much appreciated!  

Thanks

[tidaltides]

You can do that depending on the router that you are using. I guess this option can be done in your router.

[Frank-8C8]

I have managed to get the second router into 'bridge mode', now I think the next step is getting the main router to communicate and send the wireless signal through my bridged router. 

But this is where I am confused, I need help linking the two IP addresses I think...