SAN August 13, China Telecom (microblogging) 3G network this year, large-scale investment, increase coverage, but participate in the construction of manufacturers revealed that this year, China Telecom does not require network upgrades to higher versions EV-DO Rev.B, means that speed will not increase substantially and this may be because of the lack of support for EV-DO Rev.B terminal.the
At present, the 3G technology is deployed by China Telecom EVDO revision A technology and data services to support downlink 3.1Mbps, uplink 1.8Mbps. The EVDO Rev. B version to support downlink speeds of 9.3Mbps. Will the 3G rate 3 times faster than the current downlink 3.1Mbps.
2010 years, China Telecom has started to test on all equipment manufacturers to upgrade EV-DO Rev.B, EV-DO Rev.B pilot in Shanghai, Guangzhou, Chengdu and other places. Related systems equipment manufacturers have indicated that the upgrade from the existing 3G network to EV-DO Rev.B is technically not a problem, can not replace the hardware, DO Rev.B function can be achieved only through software upgrades.
Previously, China Telecom CDMA 2012 a Central Purchasing project bidding has ended, ZTE, Huawei (microblogging), Shanghai Bell (microblogging) are the three winners, only ZTE $ 1.8 billion contract amount . The expansion construction will enable China Telecom’s 3G network is better and better signal.
However, It is reported that China Telecom in the tender did not require the related equipment manufacturers to provide network upgrade services. Informed sources, the major problem is the lack of EV-DO Rev.B standard for terminal operators around the world there is little network upgraded to EV-DO Rev.B, like the United States, the largest CDMA operator Verizon is a direct upgrade to LTE .
2010 had pass high-pass in the development of the EVDO Rev. B version of the terminal chip, expected to come out of the fourth quarter of the year, but did not see the use. (JUVENILE)
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