The launch of the first four in-orbit validation (IOV) satellites was planned for the second half of 2011, and the launch of full operational capability (FOC) satellites was planned to start in late 2012.
按计划，前四颗“在轨验证卫星”（IOV）将于2011年下半年发射，“完全运行能力卫星”（FOC）将于2012年年末发射。