As part of our look at the Japanese LTE market and ahead of his speaking appearance at the sixth annual LTE Asia conference, we speak to Sadayuki Abeta, director of the Radio Access Network development, for leading Japanese mobile operator NTT DoCoMo.
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Multi-mode LTE terminals have been proven to interoperate with 2G and 3G networks, according to Chinese vendor ZTE this week.
LTE has been hailed by the Global Mobile Suppliers Association (GSA) as the fastest growing mobile network technology ever, outstripping all previous standards in terms of the pace of deployment. But while LTE is a global standard, there are variations in how it is being deployed around the world. Chief among these variations is the choice, depending on spectrum allocations, between Frequency Division Duplexing (FDD) and Time Division Duplexing (TDD).
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Alcatel-Lucent, the French network equipment supplier, has announced that it has successfully completed the first call over a trial TD-LTE network it has constructed for China Mobile.
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ZTE and Swedish operator Hi3G are partnering to launch what they claim will be the world’s first LTE TDD/FDD dual mode networks. ZTE will provide the kit for the rollout, which will take place in Sweden and Denmark. As part of the deal, ZTE will also be involved in the upgrade of the operator’s 3G network.
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Alcatel-Lucent is to partner with China Mobile on what it says is the world’s largest 4G TD-LTE trial network. The trial, which will cover six major Chinese cities including Shanghai and Beijing, follows the successful completion of interoperability tests which began in January 2010.
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China Mobile chairman Wang Jianzhou has said that Steve Jobs is “very interested” in developing an iPhone based on China mobile’s TD-LTE standard.
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German mobile operator E-Plus is to undertake a trial of TD-LTE technology, supported by the world’s largest mobile operator, China Mobile. Chinese vendor ZTE will supply the infrastructure for the trial, which will use 2.6GHz spectrum acquired by E-Plus in spectrum auctions that concluded in May 2010.
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Israeli infrastructure vendor Alvarion, a company that bills itself as a “founder of the WiMAX industry,” is to start making LTE kit for the TDD flavour of the 4G technology.
Chinese vendor ZTE and China’s Ministry of Industry and Information Technology (MII) said this week they have completed what they claim is the world’s first S1/X2 interface conformity test for TD-LTE.