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ARTICLE

Global Interoperability of Mobile WiMAX - Let's Stick Together

By Karl Weaver, Sr. Analyst and Partner of Maravedis - China
Contact the author at karlweaver@newporttechnologies.biz

It is my opinion that in order for Mobile WiMAX to gain popularity, the three largest mobile-subscriber-capacity countries in the world today, China, the US, and India, have to provide global interoperability in the same frequency range. Sprint-Nextel is specifically working with ZTE in order to influence the Chinese infrastructure equipment vendors to adopt a Mobile WiMAX standard in the 2.5 GHz frequency range.

Intel is working to adopt the 2.5 GHz frequency range in China and India. Those two countries stand to be the largest markets to deploy broadband and Mobile WiMAX in the coming years; however, South Korea and Taiwan are the major manufacturers of Mobile WiMAX (and WiBro) equipment. Both are eyeing China's huge potential market, not to mention the US. We have a triangular interoperability scheme between each country's frequency resources.

Intel has set up testing facilities in Taiwan and South Korea for Mobile WiMAX. Taiwan's equipment vendors will influence sales of WiMAX gear to China as will Intel, pushing for in-country adoption. Samsung WiBro technology will benefit by undertaking the production of WiBro base stations in Hubei province. China will eventually adopt this technology, once their own technology firms get involved in more IP creation and production of WiMAX technology. India has started to deploy Fixed WiMAX in the 3.4 GHz frequency range; however, just like China, they will have to take existing frequencies allocated for satellite usage and reallocate them for Mobile WiMAX.

I expect that India's TRAI authority will initiate Mobile WiMAX for India once the early fixed deployments gain momentum (Bharti, VSNL, and BSNL are in the process of deploying Fixed WiMAX). Only in this way can Mobile WiMAX expect to gain success globally (just like the GSM standard). You cannot build a global standard for Mobile WiMAX if the two largest emerging markets in the world don't agree on the 2.5 GHz global interoperability frequency range, given that the largest developed country (US) is already rolling out Mobile WiMAX in that range.

For more information you can contact the author karlweaver@newporttechnologies.biz.