公开(公告)号：JPH11317691A

公开(公告)日：1999-11-16

申请号：JP6092799

申请日：1999-03-08

Applicant: QUALCOMM INC

Inventor： GILHOUSEN KLEIN S ,  JACOBS IRWIN M ,  PADOVANI ROBERTO ,  WEAVER JR LINDSAY A ,  WHEATLEY III CHARLES E ,  VITERBI ANDREW J

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: PROBLEM TO BE SOLVED: To provide a modulation system which reduces mutual interferences and produces orthogonal pseudo-noise(PN) sequences so as to overcome fading. SOLUTION: A means (604) which generates a 1st orthogonal sequence signal that corresponds to one selected sequence from among plural orthogonal binary sequences receives an input signal and converts a sequential part of the input signal into one orthogonal binary sequence, selected from among plural orthogonal binary sequences respectively according to the value of each input signal part, a means which generates a PN signal generates a PN signal, corresponding to a PN binary sequence that is defined beforehand and connecting means (610 and 612) connect the 1st orthogonal sequence signal and the PN signal and supply a result signal.

公开(公告)号：US5103459B1

公开(公告)日：1999-07-06

申请号：US54349690

申请日：1990-06-25

Applicant: QUALCOMM INC

Inventor： GILHOUSEN KLEIN S ,  JACOBS IRWIN M ,  PADOVANI ROBERTO ,  WEAVER LINDSEY A JR ,  WHEATLEY CHARLES E III ,  VITERBI ANDREW J

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 ,  H04J13/04 ,  H04Q7/30

CPC classification number: H04L1/0002 ,  H04B1/3888 ,  H04B1/707 ,  H04B1/70757 ,  H04B1/709 ,  H04B1/7115 ,  H04B7/2618 ,  H04B7/2628 ,  H04B7/2637 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04J13/0022 ,  H04J13/0048 ,  H04J13/10 ,  H04J13/107 ,  H04J13/18 ,  H04L1/0006 ,  H04L1/0046 ,  H04L1/0065 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/06 ,  H04L1/08 ,  H04L5/02 ,  H04L5/12 ,  H04L23/02 ,  H04W52/26 ,  Y02D50/10

Abstract: 1. A modulation system for use in spread spectrum communications, comprising: means for generating a first orthogonal sequence signal corresponding to a selected one of a plurality of orthogonal binary sequences; means for generating a pseudo-noise (PN) signal corresponding to a predetermined PN binary sequence; means for combining said first orthogonal sequence signal and said PN signal and for providing a resultant first modulation signal. 2. The system of 1 further comprising additional means for combining said first modulation signal with an input information signal and for providing a resultant spread spectrum information signal. 3. The system of 1 wherein said plurality of orthogonal binary sequences are Walsh sequences. 4. The system of 1 wherein said PN sequence is an augmented length maximal linear sequence PN code.

公开(公告)号：FI122087B

公开(公告)日：2011-08-15

申请号：FI20095859

申请日：2009-08-20

Applicant: QUALCOMM INC

Inventor： GILHOUSEN KLEIN S ,  JACOBS IRWIN M ,  PADOVANI ROBERTO ,  WEAVER LINDSAY A JR ,  VITERBI ANDREW J ,  WHEATLEY III CHARLES E

IPC: H04L27/30 ,  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 ,  H04W52/26

Abstract: A cell site, comprising: means for modulating configured to format digital data for transmission on a communications channel and to insert at least one timing command into the digital data, the digital data comprising a plurality of bits; means for transmitting coupled to the means for modulating and configured to receive the digital data from the means for modulating, convert the digital data to analog data, and transmit the analog data on the communications channel; and means for receiving configured to receive a signal from at least one remote unit and to determine a timing error of the received signal to be used to generate the timing command in accordance with the timing error, the means for receiving being coupled to the means for modulating and configured to provide the timing command to the means for modulating.

公开(公告)号：HK1092960A1

公开(公告)日：2007-02-16

申请号：HK06110335

申请日：2006-09-15

Applicant: QUALCOMM INC

Inventor： GILHOUSEN KLEIN S ,  WEAVER LINDSAY A JR ,  JACOBS IRWIN M

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: A cell site, comprising: means for modulating configured to format digital data for transmission on a communications channel and to insert at least one timing command into the digital data, the digital data comprising a plurality of bits; means for transmitting coupled to the means for modulating and configured to receive the digital data from the means for modulating, convert the digital data to analog data, and transmit the analog data on the communications channel; and means for receiving configured to receive a signal from at least one remote unit and to determine a timing error of the received signal to be used to generate the timing command in accordance with the timing error, the means for receiving being coupled to the means for modulating and configured to provide the timing command to the means for modulating.

公开(公告)号：NO317910B1

公开(公告)日：2004-12-27

申请号：NO20032576

申请日：2003-06-06

Applicant: QUALCOMM INC

Inventor： VITERBI ANDREW J ,  WHEATLEY III CHARLES E ,  JACOBS IRWIN M ,  GILHOUSEN KLEIN S ,  PADOVANI ROBERTO ,  WEAVER JR LINDSAY A

IPC: H04B1/7115 ,  H04B1/707

公开(公告)号：FI113125B

公开(公告)日：2004-02-27

申请号：FI925812

申请日：1992-12-21

Applicant: QUALCOMM INC

Inventor： GILHOUSEN KLEIN S ,  JACOBS IRWIN M ,  PADOVANI ROBERTO ,  WEAVER LINDSAY A JR ,  WHEATLEY CHARLES E III ,  VITERBI ANDREW J

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: A cell site, comprising: means for modulating configured to format digital data for transmission on a communications channel and to insert at least one timing command into the digital data, the digital data comprising a plurality of bits; means for transmitting coupled to the means for modulating and configured to receive the digital data from the means for modulating, convert the digital data to analog data, and transmit the analog data on the communications channel; and means for receiving configured to receive a signal from at least one remote unit and to determine a timing error of the received signal to be used to generate the timing command in accordance with the timing error, the means for receiving being coupled to the means for modulating and configured to provide the timing command to the means for modulating.

公开(公告)号：FI20030823A

公开(公告)日：2003-06-02

申请号：FI20030823

申请日：2003-06-02

Applicant: QUALCOMM INC

Inventor： GILHOUSEN KLEIN S ,  JACOBS IRWIN M ,  PADOVANI ROBERTO ,  WEAVER LINDSAY A JR ,  WHEATLEY CHARLES E III ,  VITERBI ANDREW J

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 ,  H04L

Abstract: A cell site, comprising: means for modulating configured to format digital data for transmission on a communications channel and to insert at least one timing command into the digital data, the digital data comprising a plurality of bits; means for transmitting coupled to the means for modulating and configured to receive the digital data from the means for modulating, convert the digital data to analog data, and transmit the analog data on the communications channel; and means for receiving configured to receive a signal from at least one remote unit and to determine a timing error of the received signal to be used to generate the timing command in accordance with the timing error, the means for receiving being coupled to the means for modulating and configured to provide the timing command to the means for modulating.

公开(公告)号：DK0504281T3

公开(公告)日：1999-06-14

申请号：DK91901367

申请日：1990-11-30

Applicant: QUALCOMM INC

Inventor： AMES WILLIAM G ,  JACOBS IRWIN M ,  WEAVER LINDSAY A JR ,  GILHOUSEN KLEIN S

IPC: G01S5/12 ,  G01S5/14 ,  G01S13/87 ,  G01S19/00 ,  G01S19/01 ,  G01S19/38 ,  G01S19/48 ,  H04B7/185 ,  G01S1/02 ,  G01S5/00 ,  G01S5/10

Abstract: A method and system for determining the position of an object using a fixed station and a plurality of earth orbit satellites whose positions are known. Separate periodic signals are transmitted from the fixed station via first and second satellites to the object whose postion is to be determined. The phase offset in periodic characteristics of the periodic signals as received from the first and second satellites is measured at the object. The phase offset corresponds to a relative time difference in propagation of the signals traveling two different paths to the object. The object transmits via the first satellite a return signal indicative of the measured relative time difference. This return signal is activated some time in the future according to the object local time, which is slaved to receipt of the periodic signal sent through the first satellite. This future time is the start of the particular time period as decided by the fixed station's schedule. At the fixed station, an instantaneous round trip delay, determined by the time offset of the current transmission clock time relative to the receive clock time of reception of the return signal, along with the measured relative time difference sent back on the return signal, is used to calculate the distances between the first and second satellites to the object. From these distances the position of the object is calculated.

公开(公告)号：HK1007849A1

公开(公告)日：1999-04-23

申请号：HK98107057

申请日：1998-06-26

Applicant: QUALCOMM INC

Inventor： GILHOUSEN KLEIN S ,  JACOBS IRWIN M ,  WEAVER LINDSAY A

IPC: H04J13/00 ,  H04B7/15 ,  H04B7/216 ,  H04B7/26 ,  H04B

公开(公告)号：CZ283123B6

公开(公告)日：1998-01-14

申请号：CS387192

申请日：1991-06-21

Applicant: QUALCOMM INC

Inventor： GILHOUSEN KLEIN S ,  JACOBS IRWIN M ,  PADOVANI ROBERTO ,  WEAVER LINDSAY A JR ,  WHEATLEY CHARLES E III ,  VITERBI ANDREW J

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 ,  H04B7/216 ,  H04B7/204 ,  H04B1/66

Abstract: A cell site, comprising: means for modulating configured to format digital data for transmission on a communications channel and to insert at least one timing command into the digital data, the digital data comprising a plurality of bits; means for transmitting coupled to the means for modulating and configured to receive the digital data from the means for modulating, convert the digital data to analog data, and transmit the analog data on the communications channel; and means for receiving configured to receive a signal from at least one remote unit and to determine a timing error of the received signal to be used to generate the timing command in accordance with the timing error, the means for receiving being coupled to the means for modulating and configured to provide the timing command to the means for modulating.