PCB Placement of GSM Module Q24 Plus with GPS


I am in need of getting some technical help about placement in the PCB. See the figure attached here with. Some parts are on the PCB.
Component on Top Layer with Designation U150 is GSM module Q24 Plus and component on Bottom Layer with Designation U100 is a GPS receiver (A1029-A/C Tyco Electronics). I am confused about their RF parts. Will they disturb each other? I have not any other place for GPS to fit all the components in a restricted area.
I am anxiously waiting for your reply.

With Regards:
Ahsan Shehzad,
Design Engineer,
CARE, Pvt. Ltd.