San Francisco, March 15 (IANS): Chinese smartphone maker Huawei has confirmed that it has developed its own proprietary operating systems (OS) and is ready to implement those in case its legal battle with the US leads to a ban on the export of US-made products and services such as Android and Windows.

The world's second-largest handset player by market share currently uses the Android OS for its handsets and Microsoft's Windows for its laptops and tablets.

"Huawei has built its own operating system for smartphones and computers in case it is suddenly blocked from using US software from Microsoft and Google," the CNBC reported on Friday.

Chinese technology giant Huawei filed a lawsuit against the US government last week as a "last resort" to get a federal ban on the use of its products lifted.

The lawsuit, filed in a US District Court in Texas challenges the constitutionality of Section 889 of the 2019 National Defence Authorization Act (NDAA), which was signed by President Donald Trump in August last year.

A Canadian court had earlier ruled that Huawei Chief Financial Officer Meng Wanzhou's initial extradition hearing will take place on May 8.

Wanzhou faces fraud charges in the US, where an indictment unveiled in January accused her of deceiving banks into approving transactions that may have violated unilateral US sanctions against Iran.