This article is about the mobile phone technology. For the channel access method, see Code-division multiple access.
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Samsung cdmaOne mobile phone disassembled
Interim Standard 95 (IS-95) was the first digital cellular technology that used code-division multiple access (CDMA). It was developed by Qualcomm and later adopted as a standard by the Telecommunications Industry Association in TIA/EIA/IS-95 release published in 1995. The proprietary name for IS-95 is cdmaOne.
It is a 2G mobile telecommunications standard that uses CDMA, a multiple access scheme for digital radio, to send voice, data and signaling data (such as a dialed telephone number) between mobile telephones and cell sites. CDMA transmits streams of bits (PN codes). CDMA permits several radios to share the same frequencies. Unlike time-division multiple access (TDMA), a competing system used in 2G GSM, all radios can be active all the time, because network capacity does not directly limit the number of active radios. Since larger numbers of phones can be served by smaller numbers of cell-sites, CDMA-based standards have a significant economic advantage over TDMA-based standards,[citation needed] or the oldest cellular standards that used frequency-division multiplexing.
In North America, the technology competed with Digital AMPS (IS-136), a TDMA-based standard, as well as with the TDMA-based GSM. It was supplanted by IS-2000 (CDMA2000), a later CDMA-based standard.
1995. The proprietary name for IS-95 is cdmaOne. It is a 2G mobile telecommunications standard that uses CDMA, a multiple access scheme for digital radio...
for networks based on the competing cdmaOne technology. UMTS uses wideband code-division multiple access (W-CDMA) radio access technology to offer greater...
CDMA frequency bands or frequency ranges are the cellular frequencies designated by the ITU for the operation of cdmaOne and CDMA2000 mobile phones and...
developed by 3GPP2 as a backwards-compatible successor to second-generation cdmaOne (IS-95) set of standards and used especially in North America and South...
available, this AMPS phone was an immediate success. Successor TDMA and cdmaOne StarTACs were equally popular. GSM models were available in North America...
[citation needed] In North America, Digital AMPS (IS-54 and IS-136) and cdmaOne (IS-95) were dominant, but GSM was also used.[citation needed] In Japan...
standardization group for CDMA2000, the set of 3G standards based on the earlier cdmaOne 2G CDMA technology. The participating associations were ARIB/TTC (Japan), China...
provisioned in the SIM card and for cdmaOne and CDMA2000 networks, in the phone directly or in the R-UIM card (the CDMA equivalent of the SIM card). Both...
Association in TIA/EIA/IS-95 release published in 1995. It was marketed as CDMAOne and deployed globally including China Unicom in 2002 and Verizon in the...
the country's telecommunications. Technologies like AMPS, TDMA, iDEN and CDMA 1x/EV-DO were used in the past by some of those networks and have been phased...
Data (CDPD) cdmaOne (IS-95) Circuit Switched Data (CSD) Personal Handy-phone System (PHS) Personal Digital Cellular 3G networks: UMTS W-CDMA (air interface)...
started as AMPS/NAMPS in the 850 MHz band. In 1998 it converted to IS-95 CDMA and in 2004 CDMA2000/EV-DO mobile data capabilities were added as well. A...
card developed for cdmaOne/CDMA2000 ("CDMA") handsets that extends the GSM SIM card to CDMA phones and networks. To work in CDMA networks, the R-UIM...
uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA. WiMAX and LTE use OFDM. Time-division multiple access (TDMA) provides...
a file system with a number of parameters needed to operate on cdmaOne/CDMA2000 ("CDMA") networks. Each parameter, or a group of related parameters, is...
changed its position and supported CDMA in 1993, adopting Qualcomm's CDMA as the IS-95A standard, also known as cdmaOne. This prompted widespread criticism...
Partnership Project 2 (3GPP2) develops the evolving CDMA family of standards, which includes cdmaOne, CDMA2000, and CDMA2000 EV-DO. CDMA2000 EV-DO is no...
by newer 2G (second generation) cellular technologies such as GSM and cdmaOne. Although 1G also used digital signaling to connect the radio towers (which...
Malaysian Communications and Multimedia Commission. "CelcomDigi | We are now ONE - Find Out More". "2014 Annual financial report : statistic on shareholding...
interfaces WCDMA, HSDPA and HSUPA used globally. the 3GPP2 2G standard cdmaOne (IS-95) and 3G standards CDMA2000 1x and 1xEV-DO, used especially in the...
although some GSM sites can be retrofitted to broadcast in the UMTS/W-CDMA format. W-CDMA is the most common deployment, commonly operated on the 2,100 MHz...
Archived from the original on 5 September 2012. Retrieved 13 August 2012. "CDMA Operator Orders Fraud Detectors for Nigeria and DRC". Cellular-news.com....
players in the market, LG Telecom launched the world's first commercial cdmaOne data service using PCS technology. To better position itself to compete...
a twin model marketed by Sprint identical to the 270 except for using cdmaOne instead of GSM and being provider-locked. Handspring Treo 270 - ZDNET UK(Archived...
application and not part of either subscriber identity module. In a cdmaOne/CDMA2000 ("CDMA") network, the UICC contains a CSIM application, in addition to...
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