GSM frequency bands (redirect from 1800 Digital Cellular System at 1800 MHz)
which also includes the standard and extended GSM-900 bands. DCS: Digital Cellular System PCS: Personal Communications Service A dual-band 900/1800 device...
14 KB (1,114 words) - 13:28, 30 April 2025
Personal communications network (redirect from Digital Cellular System)
network (PCN) is the European digital cellular mobile telephone network. The underlying standard is known as Digital Cellular System, which defines a variant...
2 KB (238 words) - 05:23, 22 August 2023
Digital AMPS (D-AMPS), most often referred to as TDMA, is a second-generation (2G) cellular phone system that was once prevalent throughout the Americas...
18 KB (2,638 words) - 19:06, 19 May 2025
(IS-95) Circuit Switched Data (CSD) Personal Handy-phone System (PHS) Personal Digital Cellular 3G networks: UMTS W-CDMA (air interface) TD-CDMA (air interface)...
46 KB (5,539 words) - 12:55, 23 May 2025
Personal Communications Service (redirect from T-Mobile satellite cellular service)
wireless data communications systems, typically incorporating digital technology, providing services similar to advanced cellular mobile or paging services...
11 KB (1,086 words) - 23:50, 1 January 2025
Personal Digital Cellular (PDC) was a 2G mobile telecommunications standard used exclusively in Japan.[citation needed] After a peak of nearly 80 million...
4 KB (537 words) - 22:55, 25 April 2024
A cellular automaton (pl. cellular automata, abbrev. CA) is a discrete model of computation studied in automata theory. Cellular automata are also called...
66 KB (8,097 words) - 04:18, 3 June 2025
term "cellular" because of its use of small hexagonal "cells" within a system. AMPS suffered from many weaknesses compared to today's digital technologies...
33 KB (2,759 words) - 16:59, 10 February 2025
processing Digital Cellular System, a mobile communications-based PCS network used outside of the U.S. Digital Command System, a model railroad system by MTH...
5 KB (694 words) - 13:10, 24 July 2024
signals used in new cellular standards. Many useful digital systems must translate from continuous analog signals to discrete digital signals. This causes...
50 KB (6,242 words) - 04:05, 26 May 2025
1G (redirect from Analog cellular network)
were fully digital. The term "1G" itself was not used at the time, but has since been retroactively applied to describe the early era of cellular networks...
8 KB (927 words) - 09:08, 4 March 2025
Computer (redirect from Digital computer)
computing resources into cellular mobile phones by the early 2000s. These smartphones and tablets run on a variety of operating systems and recently became...
140 KB (14,125 words) - 23:29, 1 June 2025
SMS (redirect from Short message system)
device systems. It uses standardized communication protocols that let mobile phones exchange short text messages, typically transmitted over cellular networks...
79 KB (8,469 words) - 08:14, 13 June 2025
Originally 2G networks were voice centric or even voice only digital cellular systems (as opposed to the analog 1G networks). Typical 2G standards include...
14 KB (1,293 words) - 03:46, 11 April 2025
concepts, technology, systems and standards, 1994. US Black Engineer of the Year for best Technical Contributions in Digital Cellular and Microcellular Technology...
18 KB (1,950 words) - 23:05, 8 March 2025
Cellular Digital Packet Data (CDPD) is an obsolete wide-area mobile data service which used unused bandwidth normally used by Advanced Mobile Phone System...
5 KB (699 words) - 04:40, 4 January 2025
in radar jamming, although applications in cellular communications are becoming more common. A DRFM system is designed to digitize an incoming RF input...
4 KB (555 words) - 10:00, 30 December 2023
Philippines, Inc., doing business as Sun Cellular (or simply known as Sun), was a wholly owned subsidiary of Digital Telecommunications Philippines (Digitel)...
8 KB (645 words) - 10:55, 16 April 2025
Mobile phone (redirect from Cellular telephone)
switching systems of a mobile phone operator, providing access to the public switched telephone network (PSTN). Modern mobile telephony relies on a cellular network...
85 KB (9,672 words) - 22:36, 3 June 2025
non-biological entity with a cellular organizational structure (also known as a cellular organization, cellular system, nodal organization, nodal structure...
9 KB (956 words) - 02:35, 11 June 2025
AT&T Mobility (redirect from L.A. Cellular)
you need to know". CNET. Retrieved January 19, 2022. "The First Digital Cellular Systems – TDMA, GSM and iDEN (2G)". Telephone World. Retrieved February...
81 KB (8,378 words) - 01:08, 14 June 2025
analog AMPS standard that used the cellular band (800 MHz) was replaced by a number of digital systems. Initially, systems based upon the AMPS mobile phone...
5 KB (647 words) - 18:15, 25 April 2022
GSM (redirect from Global system for mobile cellular communications)
Global System for Mobile Communications (GSM) is a family of standards to describe the protocols for second-generation (2G) digital cellular networks...
40 KB (4,604 words) - 11:37, 3 June 2025
Cell site (redirect from Cellular tower)
A cell site, cell phone tower, cell base tower, or cellular base station is a cellular-enabled mobile device site where antennas and electronic communications...
30 KB (3,465 words) - 20:18, 29 May 2025
IDEN (redirect from Integrated Digital Enhanced Network)
provide interference protection via guard bands. By comparison, TDMA Cellular (Digital AMPS) is licensed in blocks of 30 kHz channels, but each emission...
14 KB (1,546 words) - 17:44, 9 October 2024
time. Examples of systems based on GPS time include the CDMA digital cellular systems IS-95 and CDMA2000. In general, computer systems use UTC and synchronize...
72 KB (7,723 words) - 21:30, 25 May 2025
Spectral efficiency (redirect from System spectrum efficiency)
channel access protocol). The link spectral efficiency of a digital communication system is measured in bit/s/Hz, or, less frequently but unambiguously...
25 KB (2,140 words) - 13:14, 9 April 2025
Powertel (redirect from Powertel (U.S. cellular carrier 1998-2001))
headquartered in West Point, Georgia, United States that provided analog cellular and digital PCS mobile communications services in the Southeastern United States...
6 KB (449 words) - 02:17, 27 May 2025
ratio yields quality communication. A good C/I ratio is achieved in cellular systems by using optimum power levels through the power control of most links...
12 KB (1,380 words) - 17:21, 28 February 2025
communications can be multiplexed or encrypted at will. Digital cellular telephony (2G systems and later generations): GSM UMTS (sometimes called W-CDMA)...
31 KB (3,973 words) - 19:20, 8 April 2025