公开(公告)号：RU2107989C1

公开(公告)日：1998-03-27

申请号：RU95109926

申请日：1994-08-24

Applicant: QUALCOMM INC

Inventor： RICHARD F DIN ,  FRANKLIN P ANTONIO ,  KLEJN S GILKHAUSEN ,  CHARLZ I UITLI III

IPC: H04B7/04 ,  H01Q21/29 ,  H04B7/02 ,  H04B7/06 ,  H04B7/08 ,  H04B7/26 ,  H04W36/18 ,  H04W88/08

Abstract: FIELD: antenna engineering. SUBSTANCE: each antenna assembly has more than one antenna. Each antenna of assembly ensures formation of channel passing signals at delay other than that in other channels. EFFECT: facilitated signal separation to improve system characteristics. 47 cl, 11 dwgs

公开(公告)号：RU2125344C1

公开(公告)日：1999-01-20

申请号：RU92016467

申请日：1991-06-21

Applicant: QUALCOMM INC

Inventor： KLEJN S GILKHAUSEN ,  IRVIN M DZHEHKOBS ,  ROBERTO PADOVANI ,  LINDSEJ A UIVER ,  CHARL Z E UITLI III ,  EHNDRJU DZH VITERBI

IPC: H04B1/707 ,  H04B1/7075 ,  H04B1/709 ,  H04B1/7115 ,  H04B7/005 ,  H04B7/26 ,  H04J3/02 ,  H04J3/16 ,  H04J3/22 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10 ,  H04J13/18 ,  H04L20060101 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L5/02 ,  H04L5/12 ,  H04L23/02 ,  H04L27/30 ,  H04W52/26

Abstract: FIELD: communications engineering; data signal exchange with spectral extension of messages. SUBSTANCE: with orthogonal pseudorandom noise codes, mutual correlation equals zero at predetermined time interval so that no interference exists between orthogonal codes on condition that time intervals of codes are aligned. Cellular assembly and mobile pieces of equipment use direct sequential extended-spectrum communication signals for exchanging messages. Monitoring, synchronizing, page, and voice channels are discriminated in cell-to-mobile-equipment communication line. Data transmitted over this communication line is coded, interlaced, modulated by two-phase key shift with orthogonal coverage of each character modulated by two-phase key shift and with extension of covered characters by quadrature-phase key shift. Access channel and voice channel are separated in mobile-equipment-to-cell line. Data transmitted over channels of mobile-equipment-to-cell line is coded, interlaced, and orthogonally indicated along with extension by quadrature-phase key shift. EFFECT: reduced mutual interference, increased carrying capacity, and improved quality of communication line. 61 cl, 15 dwg