The demand for mobile services particularly in the developing markets such as Indian and China will fuel the capex of mobile service providers across the globe to scale over $ 224.5 billion by the year 2015, says a new research from market research firm, The Insight Research Corp.

"Capital expenditures (capex) by telecommunications service providers globally is expected to increase at a compound rate of 2.4 per cent, from USD 199.6 billion in 2010 to USD 224.5 billion in 2015," says the market research report.

While the developed markets would observe a slowdown in spend, the demand for mobile services in developing markets will offset for this and result in overall growth in capex. "This growth is expected to continue during the forecast period. India's capex outlook is prima facia evidence of this trend," the report stated.

China however might see a comparatively slowdown in telecom gear spend due to slowdown in mobile subscriber growth rates, rock-bottom equipment prices and operator margin pressure.

The fixedline sector is expected to continue witnessing decline in capex spend.