公开(公告)号：JP2002135232A

公开(公告)日：2002-05-10

申请号：JP2001250224

申请日：2001-08-21

Applicant: LUCENT TECHNOLOGIES INC

Inventor： SHANG-CHIEH LIU ,  HUNG-YAO YEH

IPC: H01Q3/24 ,  H01Q3/26 ,  H04B7/02 ,  H04B7/06 ,  H04B7/26 ,  H04J13/00 ,  H04J13/10 ,  H04L1/06

Abstract: PROBLEM TO BE SOLVED: To provide an improved CDMA communication system which uses spatial time transmission diversity. SOLUTION: A smart antenna is joined to a polarization interleave switch beam to reinforce down link wideband code division multiple access performance by applying the space time transmission diversity scheme to angle and time transmission diversity. Aperture gain is converted into diversity one by dividing a different departure angle by different space time diffusion.