About Wireless Communications Services
Wireless communication services provide cell phone service, SMS, WAP and GPRS services to mobile phones. They support analog and digital telephone networks as well as satellite phones. Analog telephones translate audio signals into electronic pulses. Digital telephones translate voice communications into a binary format. Wireless communication services that support corded phones and older, analog cellular phones often use advanced mobile phone service (AMPS), a 1G standard which operates in the 800 to 900 MHz frequency band. Digital technologies for mobile telephones and cell phones include code division multiple access (CDMA), time division multiple access (TDMA), global system for mobile communications (GSM), and digital enhanced cordless telecommunications (DECT). Short message service (SMS) is available on many digital GSM networks. Wireless application protocol (WAP), an open specification for mobile devices, allows users to communicate with satellite phones, pagers, and two-way radios. GSM wireless communication services may also provide general packet radio service (GPRS), which combines packet-switching protocols with flexible data transmission rates.
Engineering Web: Wireless Communications Services - Machine Design
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Electrical/Electronic Monthly Wireless is getting under our skin Wireless microsystems are the next volley in the health-care revolution. |
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Wireless Internet access in the skies | Machine Design Wireless Internet access in the skies May 6, 2004 |
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Wireless control gets a highpriority | Machine Design measures devised to make home network communications more reliable in the 2.4-GHz band may benefit wireless nets in electrically noisy factories. |
