PHS, an acronym for Personal Handyphone System, refers to a wireless communication technology and standard primarily used in Japan. It is a digital mobile telecommunications system that operates in the 1880-1930 MHz frequency band, providing voice and data services to mobile users. PHS was developed as an alternative to the more widespread Global System for Mobile Communications (GSM) technology, offering a cheaper and simpler wireless solution.
The PHS system utilizes a cellular network infrastructure consisting of small base stations called Personal Digital Cellular (PDC) stations. These stations are connected through wired lines to provide coverage over a specific area. PHS devices, often resembling cordless phones, communicate with these stations to establish a connection.
One of the key features of PHS is its ability to provide seamless handover between base stations, ensuring continuity of communication during mobility. PHS supports voice calls, short messaging service (SMS), and various data services, such as email, internet browsing, and basic multimedia transmission.
Despite its initial popularity in Japan, PHS technology has seen a decline in usage due to advancements in other wireless standards such as 3G, 4G, and now 5G, which offer higher data speeds and improved functionalities. Nevertheless, PHS remains in use in specific regions as an affordable and reliable wireless communication option.
