9818246971
PHS (1/2)
Developed by the Research and Development Center for Radio System (RCR) in Japan Digital system
Offer services for homes, offices (1895 -1906.1 MHz), and outdoor (1906.1- 1918.1 MHz) environments TDMA / TDD technology Carrier spacing: 300 kHz 4 time slots/frequency carrier
PHS (2/2)
Supports sleep modę
Supports dynamie channel allocation
PHS utilizes dedicated control channels to
carry system and signaling information
Speech coding ratę: 32 kbps
User mobility: up to 100 km/hr
Data ratę
- Current stage: up to 64 kbps (X 'S. % \% > Taiwan)
- Futurę: 128 kbsp ->512 kbps -> 3G
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