公开(公告)号：RU2148889C1

公开(公告)日：2000-05-10

申请号：RU96108811

申请日：1995-07-05

Applicant: QUALCOMM INC

Inventor： TIEDEMANN ,  DZHILKHAUSEN KLEJN S ,  ODENVALDER DZHOZEF P ,  ZEKHAVI EHFRAIM ,  LEVIN DZHEFFRI A ,  UITLI III CHARL Z E

IPC: H04B7/00 ,  H04B7/005 ,  H04B7/26 ,  H04L1/00 ,  H04L1/08

Abstract: FIELD: communication equipment. SUBSTANCE: base station traces signal of reverse communication line, which is output by mobile station. Base station determines need to increase or decreased power output by mobile station using either coefficient of frame errors detected by decoder, or level of received signal power which is measured by receiver. In response to this analysis, control processor outputs power control signal which is transmitted to mobile station. EFFECT: possibility to control power. 47 cl, 13 dwg, 5 tbl

公开(公告)号：RU2150789C1

公开(公告)日：2000-06-10

申请号：RU97115902

申请日：1996-02-28

Applicant: QUALCOMM INC

Inventor： ZEKHAVI EHFRAIM ,  MILLER S DEHVID ,  LAROKKA DZHUDIT

IPC: H04B7/216 ,  H04J11/00 ,  H04J13/00 ,  H04J13/16 ,  H04L1/00 ,  H04L7/02 ,  H04L9/22 ,  H04J13/02

Abstract: communication equipment. SUBSTANCE: method involves modulation of variable transmission speed data packet by traffic channel sequence produced by traffic noise sequence generator. If throughput capacity of traffic channel is less than data packet speed, then variable transmission speed data packet is modulated by at least one overflow channel sequence produced by overflow channel generator. Receiving part of device provides demodulation of received data packet to produce demodulated traffic packet and demodulated overflow packet. EFFECT: increased efficiency of resource distribution across users. 26 cl, 5 dwg

公开(公告)号：RU2216873C2

公开(公告)日：2003-11-20

申请号：RU99105345

申请日：1998-06-16

Applicant: QUALCOMM INC

Inventor： VIDZHAJAN RADZHIV ,  ODENVAL DER DZHOZEF P ,  VULF DZHEK K ,  ZEKHAVI EHFRAIM ,  LI CHONG U

IPC: H04N21/2315 ,  H03M13/15 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H03M13/31 ,  H03M13/45 ,  H04J11/00 ,  H04L1/00 ,  H04L27/26 ,  H04N20060101 ,  H04N21/2383 ,  H04N21/438 ,  H04N7/24

Abstract: FIELD: high-speed digital data transmission systems operating under multibeam propagation conditions. SUBSTANCE: upon internal convolution encoding in orthogonal frequency-division multiplexing system using external Reed-Solomon coder and internal convolution coder data bits are interleaved and then grouped into characters, each incorporating m bits. After grouping characters are displayed on complex surface using quadrature amplitude modulation. In this way bits, and not characters, are interleaved by means of internal interleaving unit. Receiver executes soft solution including values of each bit in each quadrature amplitude modulated complex character received. EFFECT: enhanced speed of digital data transmission. 21 cl, 4 dwg, 1 tbl

公开(公告)号：RU2193291C2

公开(公告)日：2002-11-20

申请号：RU99111318

申请日：1997-10-27

Applicant: QUALCOMM INC

Inventor： ZEKHAVI EHFRAIM

IPC: H04B7/26 ,  H04L1/00 ,  H04L29/08 ,  H04W24/00 ,  H04W28/18 ,  H04W28/22 ,  H04W72/04 ,  H04W72/08 ,  H04W84/04 ,  H04Q7/38

Abstract: FIELD: wireless cellular communication. SUBSTANCE: technical result of invention lies in increase of speed of data transmission thanks to selection of coding rate of transmitted signal with maintenance of transmission speed constant and thanks to selection of modulation format of transmitted signal which measures directly transmission speed to subscriber's station. Adjacent cells of cellular communication system are prohibited to transmit data at same time. Since interference of transmission of adjacent cells is key source of noise transmission speed of base stations with limited power can be abruptly raised if interference from adjacent cells is excluded. Transmission to every subscriber's is carried out with fixed level of transmission power. But speed of data transmission varies from one subscriber's station to another station depending on loss in paths. EFFECT: increased speed of data transmission. 24 cl, 7 dwg