TD-LTE boosters Clearwire (NASDAQ:CLWR) and China Mobile are extending their partnership into a non-binding memorandum of understanding aimed at supporting international roaming between China and the United States. The companies announced that they will collaborate on developing a process to support international roaming as well as ensure their systems and devices are able to support roaming. The operators--which said they expect spectrum used for TD-LTE in the 2.3 GHz-2.7 GHz range will make up one of the most widely deployed 4G configurations in the world--expect their work will create a blueprint for future roaming agreements with other members of the Global TD-LTE Initiative. "Today's new agreement with China Mobile will add substantial momentum to our own LTE network deployment and to the development of the TD-LTE ecosystem around the world," said John Saw, Clearwire's senior vice president and CRO for Clearwire. See this release for more on the roaming agreement.