TECHNICAL DETAILS
TECHNICAL DETAILS
CDMA technology uses a feature called DSSS (Direct Sequence Spread Spectrum) that enables the phone to keep communication from being crossed and to use one frequency channel by multiple users in the same specific area. This results in a
The Cellular and PCS CDMA networks consist of MSO (Mobile Switching Office), BSC (Base Station Controller), BTS (Base Station Transmission System), and MS (Mobile Station).
*TSB-74: Protocol between an IS-95A system and ANSI J-STD-008
1xRTT system receives twice as many subscribers in the wireless section as
The following table lists some major CDMA standards.
CDMA Standard | Designator | Description | |
| CDMA | ||
Basic Air | 14.4kbps radio link protocol and | ||
ANSI | |||
Interface | |||
| |||
| ANSI TIA/EIA 553A | band cdma2000 1xRTT AirInterface | |
|
| Advanced Mobile Phone Service | |
| |||
Network | TIA/EIA/IS/651 | ||
Intersystem operations | |||
| |||
| |||
|
|
| |
| Speech CODEC | ||
| Async Data and Fax | ||
Service | Short message service | ||
| Packet Data | ||
| Position Determination | ||
| Service (gpsOne) | ||
|
| High Speed Packet Data | |
|
|
| |
| Cellular base station | ||
| Cellular mobile station | ||
Performance | ANSI | PCS personal station | |
ANSI | PCS base station | ||
| |||
| Speech CODEC | ||
|
|
|
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