... as many as 100 million people in 2008 and has also announced WiMax
service called Xohm. .... TD-CDMA is the primary air interface used by UMTS-
TDD. ..... on both the uplink and downlink based on the use of pilot symbols and
channels[1]. ...... diversity schemes, and hybrid-Automatic Retransmission
Request (HARQ) ... 
