Personal Handy-phone System
This article needs to be updated.(May 2022) |
The Personal Handy-phone System (PHS), also marketed as the Personal Communication Telephone (PCT) in Thailand, and the Personal Access System (PAS) and commercially branded as Xiaolingtong (
Outline
Technology
PHS is essentially a
PHS uses
PHS technology is also a popular option for providing a
In spite of its low-cost
The speed of an AIR-EDGE data connection is accelerated by combining lines, each of which basically is 32 kbit/s. The first version of AIR-EDGE, introduced in 2001, provided 32 kbit/s service. In 2002, 128 kbit/s service (AIR-EDGE 4×) started and in 2005, 256 kbit/s (8×) service started. In 2006, the speed of each line was also upgraded to 1.6 times with the introduction of "W-OAM" technology. The speed of AIR-EDGE 8× is up to 402 kbit/s with the latest "W-OAM" capable instrument.
In April 2007, "W-OAM typeG" was introduced allowing data speeds of 512 kbit/s for AIR-EDGE 8x users. Furthermore, the "W-OAM typeG" 8× service was planned to be upgraded to a maximum throughput of 800 kbit/s, when the upgrading for access points (mainly switching lines from ISDN to
Implementation
Developed by
In Thailand, TelecomAsia (now
A PHS global roaming service was available between Japan (WILLCOM), Taiwan, and Thailand.
Commercial deployments
This is a list of commercial PHS deployments around the world, all of which are now defunct:[6]
Country | Operator | ƒ (MHz) | Launch date | End of service | Notes |
---|---|---|---|---|---|
Japan | NTT DoCoMo
|
1884,65–1919,45 | Jul 1995 | Jan 2008 | [7][8][9][10][11][12] |
Japan | Softbank (Y!mobile) |
1884,65 - 1919,45 | Jul 1995 | Jul 2020 | eAccess into Y!mobile in 2014. .
Operated by Carlyle (Willcom) (2004–2010). Operated by KDDI (DDI Pocket) (1995–2004). 070 prefix under the Japanese telephone numbering plan |
Hong Kong | 1895–1906,1 | 1997 | May 2016 | [23][24][25][26] | |
China | China Unicom China Telecom (Xiaolingtong) (Little Smart) |
1880–1920 | 1998 | Sep 2013 | [27][28] |
Thailand | True Corporation |
1906,1 - 1918,1 | Nov 1999 | 2013 | [29][30][2] Additional service for fixed-line subscribers. |
Taiwan | Fitel | 1905–1915 | May 2001 | Mar 2015 | [31][32][33][34][35][36] |
Chile | Telefónica del Sur | 1910–1930 | Mar 2006 | May 2011 | [37][38] |
List of PHS-enabled CompactFlash cards
PHS-enabled
- TDK DF56CF
- NTT DoCoMo P-in m@ster
- NTT P-in memory
- DDIAirH”Card petit [RH2000]
- DDI AirH”Card petit [CFE-02
- DDI C@rdH”64 petit [CFE-01 ]
- DDI C@rdH”64 petit [CFE-01/TD]
See also
References
- ^ Calvert, John (16 May 2003). Network Services: Thailand. Gartner. Archived from the original on 17 February 2019. Retrieved 17 February 2019.
- ^ a b Report Form 56-1 For the Year 2001 TelecomAsia Corporation Public Company Limited (PDF). 2001. pp. 15, 22. Archived from the original (PDF) on 31 October 2021. Retrieved 31 October 2021.
- ^ "Excel switches to be deployed in major telecom installation in Thailand". Excel, Inc. Press Release. 30 May 1997. Archived from the original on 20 February 2019. Retrieved 19 February 2019.
- ^ "True's WE PCT to finally break even". TeleGeography. 23 Mar 2006. Retrieved 17 February 2019.
- ^ MIIT Ceases PHS Registration, Network Expansion Archived 2015-03-28 at the Wayback Machine.
- ^ "PHS Guidebook (4th Edition)" (PDF). PHS MoU Group. 2008-09-29. Archived from the original (PDF) on 2016-02-04. Retrieved 2016-01-29.
- ^ a b "Japan permit Frequency and class of emissions" (PDF). SGS RF Technologies. 2015-10-22. Archived from the original (PDF) on 27 March 2016. Retrieved 2016-01-29.
- ^ "DoCoMo to scale back PHS operations and focus on 3G". TeleGeography. 2003-09-12. Retrieved 2016-01-29.
- ^ "No more PHS for DoCoMo". TeleGeography. 2005-02-18. Retrieved 2016-01-29.
- ^ "DoCoMo to unveil HSDPA handsets; shut down PHS network in 2007". TeleGeography. 2006-02-01. Retrieved 2016-01-29.
- ^ "DoCoMo to shut down PHS services next year". TeleGeography. 2007-04-30. Retrieved 2016-01-29.
- ^ "DoCoMo to exit PHS following drop in subscribers". TeleGeography. 2008-01-07. Retrieved 2016-01-29.
- ^ "Carlyle and Kyocera agree deal for DDI Pocket". TeleGeography. 2004-06-22. Retrieved 2016-01-29.
- ^ "Willcom to launch high speed PHS". TeleGeography. 2005-06-21. Retrieved 2016-01-29.
- ^ "Adaptix tests Japanese PHS upgrade". TeleGeography. 2006-07-19. Retrieved 2016-01-29.
- ^ "Carlyle to increase Willcom stake, paper says". TeleGeography. 2009-03-16. Retrieved 2016-01-29.
- ^ "Softbank named as possible bidder for Carlyle's struggling Willcom unit". TeleGeography. 2009-11-27. Retrieved 2016-01-29.
- ^ "PHS provider Willcom to be split; investors to provide financial aid". TeleGeography. 2010-03-12. Retrieved 2016-01-29.
- ^ "Softbank to buy 100% of PHS operator Willcom". TeleGeography. 2010-10-15. Retrieved 2016-01-29.
- ^ "eAccess and Willcom merge under the Ymobile banner". TeleGeography. 2014-06-02. Retrieved 2016-01-29.
- ^ "MNP service for PHS subscribers in Japan from 1 October". TeleGeography. 2014-09-30. Retrieved 2016-01-29.
- ^ "SoftBank announces PHS switch-off in July 2020". TeleGeography. 2018-04-20. Retrieved 2018-04-20.
- ^ "OFTA proposes refarming PHS 1900MHz frequencies for mobile data services". TeleGeography. 2011-11-25. Retrieved 2013-07-05.
- ^ "No more PHS services, concludes OFTA". TeleGeography. 2012-03-02. Retrieved 2016-01-29.
- ^ "OFCA begins PHS shut down". TeleGeography. 2013-04-23. Retrieved 2016-01-29.
- ^ "Hong Kong waves goodbye to PHS". PolicyTracker. 2016-05-05. Archived from the original on 2017-01-01. Retrieved 2016-12-31.
- ^ "PHS networks to make way for TD-SCDMA". TeleGeography. 2009-02-04. Retrieved 2016-01-29.
- ^ "Unicom to shut down PHS service". TeleGeography. 2013-07-25. Retrieved 2016-01-29.
- ^ Other radio communication equipment permitted by NTC (PDF). Telecommunication Engineering and Technology Bureau. January 2011. Archived from the original (PDF) on 17 February 2019. Retrieved 17 February 2019.
- ^ Thailand (PDF). ITU-D Study Groups. p. 15. Retrieved 17 February 2019.
- ^ "Spectrum Planning Progress in Taiwan" (PDF). National Communications Commission (NCC). 2014-10-30. Retrieved 2016-02-03.
- ^ "Fitel looking to boost sales of dual technology PHS-GSM handsets". TeleGeography. 2005-11-15. Retrieved 2016-01-29.
- ^ "Fitel planning to upgrade PHS infrastructure". TeleGeography. 2013-02-11. Retrieved 2016-01-29.
- ^ "Fitel's PHS coverage shrinks as its switches off base stations to reduce costs". TeleGeography. 2014-04-22. Retrieved 2016-01-29.
- ^ "Bankrupt Fitel facing licence cancellation as NCC outlines plans to reassign numbers". TeleGeography. 2015-01-05. Retrieved 2016-01-29.
- ^ "Fitel numbers to be reassigned to existing operators". TeleGeography. 2015-05-05. Retrieved 2016-01-29.
- ^ "Telsur lanza PHS en plataforma de UTStarcom" (in Spanish). Business News Americas. 2006-03-23. Retrieved 2017-04-16.
- ^ "Telefónica del Sur lanza al mercado teléfono dual único en Latinoamérica" (in Spanish). El Mercurio. 2008-11-08. Archived from the original on 17 May 2017. Retrieved 2017-04-16.