Cheap and good “ PHS ” The main reason for delisting , One is because “ PHS ” Their monthly rent is too cheap , Let other mobile operators have no money to earn ; The second is China Telecom's own CDMA The Internet has also developed ,“ PHS ” Let yourself have no money to earn . therefore “ PHS ” Must be delisted .
below , I'll just say it briefly “ PHS ” Why did you get on the horse ? And why the causes and consequences of delisting .
one , Telecom makes a strange move
Everyone knows , stay 1999 year 7 month , China Mobile is independent from China Telecom , China Mobile began to take over the mobile phone business , Rapid development momentum . China Telecom did not get the wireless communication license , With the decrease of fixed line profit year by year , China Telecom is eager to find a way out in mobile communication .
little does one think , I really found it , It's Japanese PHS Micro cellular technology , That's what we used later “ PHS ”. Its technical aspects ,PHS It is through micro cellular base station and fixed telephone line , Complete wireless coverage , Achieve the purpose of wireless communication , Its core technology is developed by Japan NTT Invention and development .
because PHS High frequency utilization , Large system capacity , yes “ PHS ” The transmission power requirement is very low ,“ PHS ” The use time of mobile phones is much higher than that of mobile phones at that time . And because of the dynamic channel allocation （DCA） technology , Support mobile phone automatic roaming , Handoff , It can automatically complete authentication and encryption ,“ PHS ” The confidentiality and anti-theft ability of the are greatly improved .
also ,PHS The air can also support the intercom function between terminals , Even if you leave the base station , The terminal can also act as a walkie talkie .
this time , China Telecom executives began to be happy , No wireless communication license is required , And make use of today's fixed line , Although its signal is not so good , But for the networking cost, it is almost zero , The tariff is lower , Because fixed lines are answered free of charge , therefore “ PHS ” It's also free , Its monthly rent is only then mobile , Unicom 20%, Even lower .
And in terms of function , The only disadvantage of PHS is that it can't roam across cities , Fortunately, who is always on business !
next , China Telecom quickly deployed , however , The introduction of technology and the production of wireless phones require a lot of money . here UT Starcom appeared , It spent tens of millions on the Japanese PHS technology , And start having your own “ PHS ” production line .
two ,9341 Wan PHS user
therefore , Telecommunications and UT Starcom reached an agreement ,UT Starcom is responsible for technology introduction and production “ PHS ”, China Telecom is in charge “ PHS ” Basic operations and charges .1998 year 1 month ,“ PHS ” First, it was opened in Zhejiang Yuhang Telecom Bureau , Popular with consumers ,1999 Officially put into operation in , reach 2002 year 8 Month hour ,“ PHS ” About in China 200 Multiple cities opened , User exceeds 600 ten thousand ;2003 year 9 Monthly user 1500 ten thousand ;2004 year 3 Monthly user 4700 ten thousand ; reach 2006 year 10 Month hour ,“ PHS ” The user actually reached 9341 10000 households .
Normally , So popular “ PHS ” It should not be eliminated ! But an accident happened .“ PHS ” The surge of users makes China Mobile , Unicom is miserable , Users shut down and replaced them with cheaper ones “ PHS ”.
no way out ! The two enterprises began to complain to the relevant departments , There are many reasons ! for example “ PHS ” Backward technology ,“ PHS ” Monthly rent is too cheap, etc .
three , Frequency clearing and de networking
therefore , Forced by the situation , Relevant departments in 2000 year 5 Month start , The continuous issuance of documents requires the support of local telecom enterprises “ PHS ” All suspended , Waiting for evaluation . And then again 11 month 21 The third document issued on , All localities are required to increase the monthly rental fee of PHS , Call fee .2001 year 2 The fourth document was issued in June , Put forward clear requirements for PHS charges , Two charging schemes are specified .
however , For China Telecom , These documents have become a dead letter ,“ PHS ” Business is booming , Even Hangzhou has launched “ PHS ” Roaming service ,“ PHS ” More and more users .
therefore ,2008 year 5 month 24 day , Documents issued by relevant departments , China Telecom acquires China Unicom CDMA network ( Including assets and users ), Soon ,6 month 2 Day day , China Telecom 1100 Geyi buys China Unicom CDMA network , After starting to own your own mobile network , And made great contributions “ PHS ” Become an obstacle to their own development , It was naturally withdrawn from the network .
2009 year 2 month , Requirements of relevant departments “ PHS ” Frequency clearing and de networking , The reason is that it occupies 1900MHz-1920MHz Frequency band , by 3G Make way for development , The time limit is 2011 Before the end of the year ; therefore ,2011 year 1 month 1 day “ PHS ” Delisting , And to 2014 year 10 month 1 Day time , All over the country “ PHS ” The base station was shut down by China Telecom .
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