Samsung Electronics
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1 . General Int roduct ion
The SCH-470 cellular phone functions as only digital cellular phone working in CDMA (Code Division
Multiple Access) mode. CDMA type digital mode applies DSSS (Direct Sequential Spread spectrum) mode
which first came to be used in the military.
The DSSS reduces channel cross talk and allow to use one frequency channel by multiple users in the same
specific area, resulting in increase of channel capacity to about ten times compared to that of analog mode
currently used.
Soft/Softer Handoff, Hard Handoff, and Dynamic RF Power Control technologies are combined into this
phone to reduce the call drop while usage.
CDMA digital cellular network consists of MSO (Mobile Switching Office), BSC (Base Station Controller),
BTS (Base Station Transmission System), and MS (Mobile Station). MS meets the specifications of the below:
¶U
IS-95A : Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum
Cellular System
¶U
IS-96A : Speech Service Option 1 Standard for Dual-Mode Wideband Spread Spectrum Cellular Systems
¶U
IS-98A : Standards for Dual-Mode Wideband Spread Spectrum Cellular Mobile Station
¶U
IS-126 : Mobile Station Loopback Service Options Standard
SCH-470 is composed of main handset, rapid charger, cradle, two batteries.
Summary of Contents for SCH-470
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