MOBILE FAIR-UPDATE 2-Verizon picks Alcatel-Lucent for network

* Verizon names key LTE infrastructure vendors

* Says Alcatel-Lucent, Ericsson to upgrade radio network

* NSN, Starent to also provide LTE infrastructure

(Rewrites, ads quotes)

BARCELONA, Feb 18 (Reuters) - Verizon (VZ.N) has picked long-term supplier Alcatel-Lucent (ALUA.PA) as a key vendor for a new multi-billion dollar high-speed wireless network, one of the first such in the world,

Verizon unveiled suppliers for its Long Term Evolution (LTE) network at the Mobile World Congress trade show in on Wednesday.

LTE is an emerging technology that promises to make mobile Web surfing about four times faster. There is increasing urgency worldwide for faster wireless networks as growing demand for mobile data is driven by smartphones and embedded laptops.

Verizon Wireless, a joint venture between Verizon Communications and Britain's Vodafone (VOD.L), is the largest operator to date to commit to LTE, following Japan's NTT DoCoMo (9437.T) last year.

Sweden's Ericsson (ERICb.ST) would be the second supplier for radio network equipment, while Nokia Siemens Networks [NSN.UL] would be the second supplier for IMS technology -- which enables multimedia services.