"Next-generation PHS" as well as the original PHS system have been developed as a BWA (broadband wireless access) system able to achieve high efficiency spectral utilization, primarily due to the use of micro-cells with signal diameters much shorter than typical mobile phone cells.

“Next-generation PHS” in a broad sense provides an enhanced PHS system, based on TDMA-TDD.

"Next-generation PHS" additionally provides an OFDMA/TDMA-TDD system which adopts many superior features including,

Continuous connectivity at IP level
Higher transmission data rates compared to 3G systems: over 20 Mbps / 10 MHz
Higher transmission data rate for uplink: over 10 Mbps / 10 MHz
Increased spectral utilization efficiency:

• "Adaptive array antenna technology" significantly increases the spectral utilization efficiency

• "Space Division Multiple Access Technology" enables communication by multiple users simultaneously, on the same frequency, in the same cell.

• "MIMO technology" provides higher volume data transmission, per user, using the same frequency simultaneously in the same cell

• "Autonomous Decentralized Control Technology" enables dense coverage of cell stations, resulting in the flexible handling of increasing traffic loads.

Since "Next-generation PHS" provides an autonomous decentralized control method, enabling several operators to share the same frequency band, increased spectral utilization efficiency is possible.

"Next-generation PHS," whose service coverage areas consist of many micro-cells, is unique among BWA systems, .