Clearwire and China Mobile to Develop Interoperable TD-LTE
Clearwire and China Mobile today announced an agreement that will see the companies, in cooperation with the Global TD-LTE Initiative, developing interoperable TD-LTE devices. Specifically, the companies have agreed to develop common test specifications and interoperability testing for TD-LTE devices in the 2.3GHz to 2.7GHz spectrum bands. This will eventually lead to multi-mode, quad-band LTE devices that can run on Clearwire's TD-LTE network in the U.S. and roam onto China Mobile's FDD-LTE network in China. LTE 4G is being deployed on a wide range of spectrum in countries around the world, and international roaming issues have yet to be solved by the majority of device makers and network operators. Clearwire is currently in the process of switching its WiMax network to TD-LTE, with some of the first markets planned to go live later this year.
T-Mobile Rolling Out LTE-U
T-Mobile today said it is beginning to upgrade its 4G network with LTE-U this spring. LTE-U allows LTE to operate on the unlicensed spectrum in the 5 GHz band, which is typically reserved for WiFi.
AT&T Finally Using WCS Spectrum for LTE; Will Test LTE-U
AT&T has begun deploying LTE on its 2.3GHz WCS spectrum in a handful of markets around the country. Earlier this year, AT&T said it would begin the deployment by summer, and it is just meeting that commitment.
Verizon Explains Why It Is Refarming PCS Spectrum
Verizon Wireless elaborated today on news it has begun to refarm its PCS spectrum for LTE. Verizon has already deployed LTE on its PCS spectrum in a limited scale across Manhattan and Cleveland, Ohio, with "about 10 other markets" currently in testing.
Sprint Partners Making Headway in Rural LTE Push
Sprint says 16 of the 30 companies who've agreed to participate in its Rural Roaming Preferred Provider program have launched their LTE networks. The Rural Roaming Preferred Provider program is similar to Verizon Wireless' LTE in Rural America initiative.