On a general level, LTE at lower frequencies like 1800 MHz have the attraction of greater coverage and thus lower costs.
One hitch in refarming spectrum for LTE capacity, however, is having enough of it in a given band – which is why CSL won’t be refarming its 900 MHz band for LTE, Daigneault said.
“We have already refarmed 900 MHz for [HSPA+] for immediate benefits, and there is not enough spectrum at present to add a LTE carrier,” he said. “LTE becomes efficient with more than 10 MHz of spectrum, and all HK operators only have 8.3 MHz paired [in the 900 band]. At 1800 MHz, CSL has large amount of spectrum which is more than sufficient for the co-existence of LTE and GSM.”
CSL has been trialing LTE in Hong Kong since November 2009. Daigneault said CSL still has no firm launch date for commercial LTE services.
MORE ARTICLES ON 1800MHZ, CSL, HONG KONG, LTE, SPECTRUM REFARMING, ZTE
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