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{{Stub}}
  
{{Stub}}
   
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== Introduction to Cellular Internet ==
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== Introduction to Cellular ==
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This article is specifically about cellular '''data''' (including cellular Internet), not cellular voice and other cellular services. For more information on cellular, see [http://cell.wikia.com Cell Phone Enthusiasts Wiki].
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Also called Mobile Internet.
  
   
 
== GSM ==
  
== GSM ==
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:[[wikipedia:GSM|Global System for Mobile Communications]] (GSM) is a [[wikipedia:Digital|digital]] [[wikipedia:Cellular_network|cellular]] communications technology based on [[wikipedia:TDMA|Time Division Multiple Access]] (TDMA), and is the dominant mobile communications system in most of the world, including Europe, the Middle East, Africa, and Asia, and it now has a strong presence in North America as well. First introduced in 1991, the GSM standard has been deployed in four different frequency bands: 800 (called "850" so as not to be confused with [[wikipedia:Digital AMPS|D-AMPS]] on 800), 900, 1800, and 1900 [[wikipedia:Hertz|MHz]]. GSM 850 and 1900 are primarily used in North America; GSM 900 and 1800 are primarily used outside of North America. GSM uses narrowband TDMA that allows up to ''eight'' (or ''sixteen'' with Half-Rate Codec<sup>1</sup>) simultaneous calls on the same [[wikipedia:Radio_frequency|radio frequency]] using different ''time slots'' in the same ''channel''. Along with [[wikipedia:CDMA|CDMA]] and D-AMPS (Digital AMPS, often referred to simply as "TDMA"), GSM represents the [[wikipedia:2G|2nd generation (2G)]] of cellular wireless.
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:[[wikipedia:GSM|Global System for Mobile Communications]] (GSM) is a [[wikipedia:Digital|digital]] [[wikipedia:Cellular_network|cellular]] communications technology based on [[wikipedia:TDMA|Time Division Multiple Access]] (TDMA), and is the dominant mobile communications system in most of the world, including Europe, the Middle East, Africa, and Asia, and it now has a strong presence in North America as well. First introduced in 1991, the GSM standard has been deployed in four different frequency bands: 800 (called "850" so as not to be confused with [[wikipedia:Digital AMPS|D-AMPS]] on 800), 900, 1800, and 1900 [[wikipedia:Hertz|MHz]]. GSM 850 and 1900 are primarily used in North America; GSM 900 and 1800 are primarily used outside of North America. GSM uses narrowband TDMA that allows up to ''eight'' (or ''sixteen'' with Half-Rate Codec<ref>Initial public perception of Half-Rate Codec quality was so poor that it's not been generally used. However, adaptive encoding has improved quality substantially since then, so it's possible that Half-Rate Codec may be used more widely in the future, particularly in highly cost-sensitive markets (''e.g.,'' less developed countries).</ref>) simultaneous calls on the same [[wikipedia:Radio_frequency|radio frequency]] using different ''time slots'' in the same ''channel''. Along with [[wikipedia:CDMA|CDMA]] and D-AMPS (Digital AMPS, often referred to simply as "TDMA"), GSM represents the [[wikipedia:2G|2nd generation (2G)]] of cellular wireless.
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::<small>1. Initial public perception of Half-Rate Codec quality was so poor that it's not been generally used. However, adaptive encoding has improved quality substantially since then, so it's possible that Half-Rate Codec may be used more widely in the future, particularly in highly cost-sensitive markets (''e.g.,'' less developed countries).</small>
  
   
 
=== [[wikipedia:Circuit Switched Data|CSD]] ===
  
=== [[wikipedia:Circuit Switched Data|CSD]] ===
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=== [[wikipedia:UMTS|UMTS]] ===
  
=== [[wikipedia:UMTS|UMTS]] ===
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:Typical download speeds of '''200-320 Kbps''' (or about 2x EGPRS). Most (but not all; ''e.g.,'' [http://www.novatelwireless.com/products/merlin/merlin-u520.html Novatel U520]) devices are backward compatible to EGPRS and GPRS.
 +
:UMTS stands for Universal Mobile Telephone System. It reaches typical download speeds of '''200-320 Kbps''' (or about 2x EGPRS). Most (but not all; ''e.g.,'' [http://www.novatelwireless.com/products/merlin/merlin-u520.html Novatel U520]) devices are backward compatible to EGPRS and GPRS.
  +
   
 
=== [[wikipedia:HSPA|HSPA]] ===
  
=== [[wikipedia:HSPA|HSPA]] ===
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:Typical speeds are expected to be upto '''3.6 Gbps'''. [[Latency]] (as measured by [[wikipedia:ping|ping]]) expected to be about 150 ms (or about 1/2 EGPRS). Backward compatible to UMTS, EGPRS and GPRS.
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:Typical speeds are currently '''400-700 Kbps''' (or about 4x EGPRS). Latency (as measured by [[wikipedia:ping|ping]]) is about 150 ms (or about 1/2 EGPRS). Backward compatible to UMTS, EGPRS and GPRS.
   
 
== CDMA ==
  
== CDMA ==
   
 
=== 1xRTT ===
  
=== 1xRTT ===
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Round-trip latency of about 350 ms.
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Round-trip latency of about 350 ms. Reportedly, 1xRTT data transmission latency can get as low as 220-250 ms when the network is optimized adequately.
   
 
=== EV-DO ===
  
=== EV-DO ===
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== Carriers ==
  
== Carriers ==
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{{Main|Cellular Internet carriers}}
  
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=== Cingular ===
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=== AT&T Mobility, Formerly Cingular Wireless===
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* Uses '''[[wikipedia:Global System for Mobile Communications|GSM]]/[[wikipedia:Universal Mobile Telecommunications System|UMTS]]''' ''([[wikipedia:Advanced Mobile Phone System|AMPS]]/[[wikipedia:Digital AMPS|D-AMPS]]["TDMA"] being migrated to GSM and phased out)''
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* Uses 850MHz & 1900MHz '''[[wikipedia:Global System for Mobile Communications|GSM]]/[[wikipedia:Universal Mobile Telecommunications System|UMTS]]''' ''([[wikipedia:Advanced Mobile Phone System|AMPS]]/[[wikipedia:Digital AMPS|D-AMPS]]["TDMA"] being migrated to GSM and phased out)''
 
* '''[http://www.cingular.com/midtolarge/laptop_connect BroadbandConnect/EDGE(EGPRS)]'''
  
* '''[http://www.cingular.com/midtolarge/laptop_connect BroadbandConnect/EDGE(EGPRS)]'''
 
** [http://www.cingular.com/midtolarge/laptop_connect/integrated Laptops (notebooks) with integrated BroadbandConnect]
  
** [http://www.cingular.com/midtolarge/laptop_connect/integrated Laptops (notebooks) with integrated BroadbandConnect]
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*** ''[http://groups.google.com/group/alt.cellular.data Google access to alt.cellular.data]''
  
*** ''[http://groups.google.com/group/alt.cellular.data Google access to alt.cellular.data]''
   
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=== T-Mobile ===
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=== T-Mobile USA===
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* Uses '''[[wikipedia:Global System for Mobile Communications|GSM]]'''
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* Uses 1900MHz '''[[wikipedia:Global System for Mobile Communications|GSM]]''' & EDGE Data
 
* '''Discussion Groups''' (lots of good info and help)
  
* '''Discussion Groups''' (lots of good info and help)
 
** [[alt.internet.wireless]] (general discussion)
  
** [[alt.internet.wireless]] (general discussion)
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== WAP ==
  
== WAP ==
   
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[[wikipedia:Wireless Application Protocol|Wireless Application Protocol]] (WAP) is a protocol for wireless Internet access that is designed for small screen cellular phones. Access to the Internet is through a ''WAP Gateway''.
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[[wikipedia:Wireless Application Protocol|Wireless Application Protocol]] (WAP) is a protocol for wireless Internet access that is designed for small screen cellular phones. Access to the Internet is through a ''WAP Gateway''.
   
 
* [http://www.filesaveas.com/wap.html WAP information]
  
* [http://www.filesaveas.com/wap.html WAP information]
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* [http://www.tiffanyllc.com/tiffany-jewelry-tiffany-bangle-c-1_45.html Tiffany Bangle]
   
 
=== WAP Gateways ===
  
=== WAP Gateways ===
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* [http://www.wapmob.com/ wapmob.com] (free)
  
* [http://www.wapmob.com/ wapmob.com] (free)
 
* [http://wappy.to/ Wappy] (shaky)
  
* [http://wappy.to/ Wappy] (shaky)
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== Cellular Accessories ==
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Cellular Accessories are a common means of extending the functionality of your phone, protecting it, or adding style. You can find [http://www.TheCellGuru.com Accessories For Most Cell Phones] by the Original Equipment Manufacturer (OEM) or Aftermarket. The OEM Accessories tend to have more reliable compatibility, but aftermarket accessories, if chosen wisely can be of better quality and cost the same amount if not less.
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== Cellular Modems ==
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=== GSM/UMTS/HSPA ===
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* [[wikipedia:Huawei E220|Huawei E220]] ([[wikipedia:USB|USB]])
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=== CDMA ===
   
 
== Wireless Broadband Routers ==
  
== Wireless Broadband Routers ==
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* [http://www.junxion.com/ Junxion Box] (works with CDMA or GSM)
  
* [http://www.junxion.com/ Junxion Box] (works with CDMA or GSM)
 
* [http://www.kyocera-wireless.com/kr1-router/ Kyocera KR1 Mobile Router]
  
* [http://www.kyocera-wireless.com/kr1-router/ Kyocera KR1 Mobile Router]
  +
* [http:// Link building Service]
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* [http://www.fau.edu/kayeauditorium/ Barry Kaye]
 
* [http://www.nexusisr.com/ Nexus Hawk] (works with 802.11a/b/g, GSM and CDMA simultainiously)
  
* [http://www.nexusisr.com/ Nexus Hawk] (works with 802.11a/b/g, GSM and CDMA simultainiously)
 
* [http://www.topglobalusa.com/ Top Global routers]
  
* [http://www.topglobalusa.com/ Top Global routers]
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* [http://www.vinfotech.com/web-development/asp.net-web-application-development.htm ASP.Net Web Development]
  +
* [https://www.rginfotech.com/services/php-development/ PHP Web Development]
   
 
{{Tip|tiptext=Use of EV-DO data service as a non-mobile DSL/cable modem replacement may be against the terms of service of a given carrier (e.g., Verizon).}}
  
{{Tip|tiptext=Use of EV-DO data service as a non-mobile DSL/cable modem replacement may be against the terms of service of a given carrier (e.g., Verizon).}}
   
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== Footnotes and References ==
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  +
<div class='references-small'>
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<references/>
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</div>
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== External links ==
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* [http://cell.wikia.com Cell Phone Enthusiasts Wiki]
 
[[Category:Cellular]]
  
[[Category:Cellular]]

Latest revision as of 12:50, 12 January 2021

Welcome! Wireless Wiki is a practical, comprehensive, and objective resource for wireless communications, particularly wireless access to the Internet, and related wireless technologies (e.g., cellular). Founded by John Navas.

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Contributions and corrections are encouraged and appreciated, but please first visit our Community Portal for Important Policies on Content, Style, What we are, What we aren't, and answers to your questions.

This article covers the practical aspects of wireless access to the Internet via Cellular.

Tip: See also Cellular on a Boat


Stub: This article is a stub. You can help the Wireless Wiki by expanding it.


Introduction to Cellular[]

This article is specifically about cellular data (including cellular Internet), not cellular voice and other cellular services. For more information on cellular, see Cell Phone Enthusiasts Wiki.

GSM[]

Global System for Mobile Communications (GSM) is a digital cellular communications technology based on Time Division Multiple Access (TDMA), and is the dominant mobile communications system in most of the world, including Europe, the Middle East, Africa, and Asia, and it now has a strong presence in North America as well. First introduced in 1991, the GSM standard has been deployed in four different frequency bands: 800 (called "850" so as not to be confused with D-AMPS on 800), 900, 1800, and 1900 MHz. GSM 850 and 1900 are primarily used in North America; GSM 900 and 1800 are primarily used outside of North America. GSM uses narrowband TDMA that allows up to eight (or sixteen with Half-Rate Codec[1]) simultaneous calls on the same radio frequency using different time slots in the same channel. Along with CDMA and D-AMPS (Digital AMPS, often referred to simply as "TDMA"), GSM represents the 2nd generation (2G) of cellular wireless.

CSD[]

CSD (Circuit Switched Data) is similar to dialup modem communications. However, a GSM phone has no real modem, just a sort of virtual modem which makes a connection to a carrier's IWU (Inter-Working Unit), located in a service center. The IWU has the actual modem that makes analog data calls and/or fax calls over the PSTN (public switched telephone network). If the carrier doesn't provide the IWU facility, or if the account isn't provisioned for CSD, then a GSM phone cannot make data and/or fax calls.
Speed of CSD is 9.6 Kbps.
A regular dialup modem cannot be made to work over a GSM voice channel because of the audio data compression used.

HSCSD[]

GPRS[]

With a Class 10 device and good signal, typical download speeds of about 50 Kbps (about 6K Bytes/sec). Available in most GSM service areas.

EGPRS(EDGE)[]

With a Class 10 device and good signal, typical download speeds of about 150 Kbps (about 18.5K Bytes/sec). Latency (as measured by ping) of about 300 ms. Widely available. Backward compatible to GPRS.

UMTS[]

UMTS stands for Universal Mobile Telephone System. It reaches typical download speeds of 200-320 Kbps (or about 2x EGPRS). Most (but not all; e.g., Novatel U520) devices are backward compatible to EGPRS and GPRS.


HSPA[]

Typical speeds are currently 400-700 Kbps (or about 4x EGPRS). Latency (as measured by ping) is about 150 ms (or about 1/2 EGPRS). Backward compatible to UMTS, EGPRS and GPRS.

CDMA[]

1xRTT[]

Round-trip latency of about 350 ms. Reportedly, 1xRTT data transmission latency can get as low as 220-250 ms when the network is optimized adequately.

EV-DO[]

EV-DO Rev. A[]

Carriers[]

AT&T Mobility, Formerly Cingular Wireless[]

Sprint/Nextel[]

T-Mobile USA[]

Verizon[]

WAP[]

Wireless Application Protocol (WAP) is a protocol for wireless Internet access that is designed for small screen cellular phones. Access to the Internet is through a WAP Gateway.

WAP Gateways[]

Cellular Accessories[]

Cellular Accessories are a common means of extending the functionality of your phone, protecting it, or adding style. You can find Accessories For Most Cell Phones by the Original Equipment Manufacturer (OEM) or Aftermarket. The OEM Accessories tend to have more reliable compatibility, but aftermarket accessories, if chosen wisely can be of better quality and cost the same amount if not less.

Cellular Modems[]

GSM/UMTS/HSPA[]

CDMA[]

Wireless Broadband Routers[]

Tip: Use of EV-DO data service as a non-mobile DSL/cable modem replacement may be against the terms of service of a given carrier (e.g., Verizon).


Footnotes and References[]

  1. ↑ Initial public perception of Half-Rate Codec quality was so poor that it's not been generally used. However, adaptive encoding has improved quality substantially since then, so it's possible that Half-Rate Codec may be used more widely in the future, particularly in highly cost-sensitive markets (e.g., less developed countries).

External links[]

Community content is available under CC-BY-SA unless otherwise noted.