To address the issue of enhancing signal coverage in blind areas for 5G indoor wireless communications, this paper presents a design for a 2-bit reconfigurable smart metasurface that operates within the frequency range of 3.4 GHz to 3.6 GHz, utilizing PIN diodes. The structure of the metasurface unit is composed of a bottom all-metal base plate, a middle dielectric substrate, a top metal strip line, along with PIN diodes and capacitor elements that are etched between the strip lines, enabling the reflection phase of the metasurface unit to achieve a 2-bit phase resolution. Simulation results indicate that the metasurface is capable of generating both symmetric and single beams. Ultimately, we fabricated an array consisting of 24 rows and 16 columns using PCB technology. Actual measurements confirm that the array structure designed with the metasurface facilitates beam reconfiguration. This research not only offers a solution for enhancing signal coverage in 5G indoor wireless communications but also investigates new application avenues for reconfigurable metasurface technology within the realm of 5G millimeter wave communications.