Increasing Signal Strength

[matchstickredgti]

Signal strength is pretty weak in my office and a lot of the time when I try to use data, it's usually only 1x which is pretty frustrating. Occasionally it will jump to 3g but never for long. I'm on the 4th floor of an office building in zip 77042 if that helps any.

Are there any devices out there that will successfully improve my signal? Would using a different radio have any effect on it? Input is appreciated