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CAT ready to abandon CDMA
Mobile network will switch over to GSM
BANGKOK: -- CAT Telecom is preparing to abandon CDMA technology for its money-losing mobile-phone service and migrate to the GSM system that is in more widespread use throughout the world.
The state telecom enterprise has held talks with cellular partner Hutchison and with the two operators holding CAT concessions, DTAC and True Move, and all agreed that switching to GSM was the right idea, said a senior CAT executive who asked not to be named.
CAT provides the Hutch CDMA service in 25 central provinces including Bangkok in a joint venture with Hutchison under CAT Wireless Multimedia.
However, the Hutch service has managed to attract only about 700,000 customers in a mobile market of 54 million.
Huawei Technology last year completed a 7.2-billion-baht expansion of the CDMA system to allow CAT to offer nationwide coverage, but the Chinese firm is locked in a dispute with CAT over fines for late delivery of the system.
The expanded network infrastructure would not go to waste because it can be adapted to the GSM platform.
The executive said CAT had concluded that continuing to use CDMA technology would lead to mounting losses because most of the world had now shifted to GSM technology, although CDMA is still popular in the United States and Japan.
''Continuing service on CDMA will lead to a deadlock and we also will miss the technology advancement bandwagon,'' he said.
CAT intends to migrate to HSDPA or High Speed Downlink Packet Access. The technology improves the performance of W-CDMA networks, but more importantly has become the technology of choice for third-generation (3G) services on GSM networks.
With higher data transfer speeds and greater system capacity, mobile users would have access to high-speed broadband multimedia services including internet access and rapid downloading of e-mails with attachments, wireless audio, DVD-quality video and multi-player gaming among other applications.
The executive said it had become clear that operating a nationwide CDMA network would not be financially viable, even if subscriber numbers increased.
A major problem is the new interconnection system, under which operators charge each other for calls handled across different networks. He said that Hutch would end up as a net payer since it has so few customers compared with the three large operators.
The executive said CAT and Hutch agreed that now was an opportune time to start shifting to a new platform since the government was still deciding how to handle the issuing of 3G licences.
If the two big CAT concession holders, DTAC and True Move, migrated to 3G service using the same frequencies allocated to CAT and its state enterprise sibling TOT, more services could be offered based on HSDPA, he said.
He said the switch to GSM would not cost much money because some network infrastructure could be reused.
While there could be some impact on businesses developing content and applications for CDMA, they are expected to be able to adapt quickly and benefit from rapid take-up of new 3G services.
Worldwide, 86% of all cellular customers use 316 GSM-based networks in 147 countries. A total of 190 networks in 83 countries offer WCDMA, and 154 networks in 71 countries have HSDPA.
The executive said that CAT could form joint ventures with Hutch and True Move to provide mobile broadband services using the same 850 MHz bandwidth that CAT and Hutch now use.
-- Bangkok Post 2008-02-22
Какие нужны доки для покупки сего чуда с годовой безлимиткой?DeniZ писал(а):Тоже взял его в августе в офисе Hutch с годовой безлимиткой, доволен очень. Тесты на скорость не буду выкладывать, это уже делали, скажу проше - качая 4 фильма по торренту со скоростью 50-70 КБай/сек, параллельно прекрасно открывалась почта и любые другие сайты для просмотра. При этом канал не падает, не "замерзает", не разрывает соединение. Скайп тянет запросто. VPN через него пашет. А большего мне и не надо, решил полностью проблему с интернетом в Тайланде. Правда, это может только пока все хорошо, пока юзеров маловато. Посмотрим.
Александр Николаевич писал(а):Хорошо, при случае, когда окажусь рядом с базовой станцией, воспользуюсь этим тестом и померию скорость. Максимальная скорость сильно зависит от расстояния до ближайшей базовой станции. Там, где я живу, средняя скорость редко бывает больше, чем 500-600 килобит в секунду (около 6 километров до ближайшей базовой станции).
DeniZ писал(а):CDMA EV-DO Rev.0 , т.е. скорости как в Скайлинке, когда они только начали вводить EV-DO. Никаким Rev.A, как в прошлом году, сейчас и не пахнет. Для просмотра страниц, почты, Торрента, VPN-соединений хватает. Для Skype upload скорости не хватает, но ведь можно и через 009 звонить, не на много дороже, а в Skype переадресацию на тайский мобильник поставить.
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