T-Mobile and Nokia Networks are developing a pre-standards LAA (also referred to as LTE-U) solution for more LTE capacity and increased network performance. At Mobile World Congress, Nokia Networks will demonstrate the capabilities of LAA, using its Nokia Flexi Zone small cells technology, currently deployed by T-Mobile.

Telecom Italia Mobile (TIM) has announced that its LTE services are now available in Cortina d'Ampezzo (Belluno) and Courmayeur (Aosta). TIM Launched commercial LTE services last year in November.

ZTE has announced successful demonstration of time-division long term evolution (TD-LTE) downlink three-carrier aggregation (3x CA) in collaboration with China Mobile and Qualcomm Technologies. 

Verizon and AT&T plan to enable VoLTE- to-VoLTE connections between Verizon Wireless and AT&T customers in 2015. Verizon introduced its Advanced Calling 1.0 services across the United States in September.  AT&T introduced VoLTE services in its initial markets earlier this year, and continues to expand to more markets across the United States.

Vodafone is implementing LTE FDD/TDD carrier aggregation in commercial network in Portugal, anticipating wider terminal availability later this year. This move will allow the operator to combine the best characteristics of LTE FDD and TDD modes. 

DOCOMO PACIFIC has selected Nokia Siemens Networks to supply an end-to-end 4G LTE network in U.S. territory of Guam. The LTE deployment is an extension of Nokia Siemens Networks’ existing relationship with DOCOMO PACIFIC.

AT&T has released some ongoing 5G trial details earlier this week. The company had started enterprise 5G trial in Austin, Texas more than a year ago to explore mmWave and testing 5G equipment and later expanded 5G trials to more places in Waco, Texas, Kalamazoo, Michigan and South Bend, Indiana.