| 摘要 |
PROBLEM TO BE SOLVED: To obatain a method and a device for providing orthogonal spot beams, sectors and a picocells. SOLUTION: Transmission is made orthogonally by the use of different Walsh communication amount channels in orthogonal auxiliary pilots and adjacent areas. The pilot signal is covered by a 64-chip Walsh sequence 0. This invention provides an additional pilot signal by chaining the 64 chips (all 0 P) with the sequences (all 1 M). By this, pilot Walsh sequences PP and PM are used as 2 pilot signals. Pilot Walsh sequences PPPP, PMPM, PPMM and PMMP are used as 4 pilot signals. This invention is expanded so that any necessary number of the pilot Walsh sequence can be generated by substituting each bit in the 64 chips (all 0 P) that depend on the bit value and in the K-bit Walsh sequence that has the sequence (all 1 M). COPYRIGHT: (C)2009,JPO&INPIT |
