Source: Light Reading
Clearwire LLC is part of a group of operators and vendors that has asked the 3rd Generation Partnership Project (3GPP) standards body to start work on specs that would allow TD-LTE to be deployed in the US in the 2.6GHz spectrum -- which is now used for WiMax -- in a move that further exposes the operator's interest in the competing proto-4G standard.
The proposal to adopt the 2496MHz-to-2690MHz frequency band in the US for TD-LTE, which was first highlighted on the "LTE Watch" blog, was accepted at a 3GPP meeting earlier this month. The acceptance is significant because it will enable Clearwire and other spectrum holders to deploy TD-LTE, which is the time division duplex (TDD) version of LTE, in the US.
See also, Clearwire to migrate to LTE? - Hyung