The new era of fifth-generation (5G) telecommunications enables the necessary infrastructure to transfer big data of information for industry sectors such as power utility. In this context, Licensed Assisted Access (LAA) emerges as a new multiradio interface technology that can integrate a Wi-Fi radio interface with the Long-Term Evolution-Advanced (LTE-A). A smart grid consists of one or more control centers that govern a hierarchical architecture of three communication networks including home area network (HAN), neighborhood area network (NAN), and wide area network (WAN). The chapter explains the main architecture of smart grid communication. It identifies the spectrum/bandwidth operation to utilize the spectrum space within a channel or to transmit the data in the suitable channel, which is available for a data transmission. The chapter provides the algorithm mused for managing spectrum access for the LAA in unlicensed band.