公开(公告)号：ES2210314T3

公开(公告)日：2004-07-01

申请号：ES95934418

申请日：1995-09-12

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSAY A JR ,  BENDER PAUL E

IPC: H04B7/005 ,  H04B7/26 ,  H04W16/06 ,  B60S5/04 ,  H04W36/18 ,  H04W52/40 ,  H04W52/52 ,  H04Q7/36 ,  H04Q7/30

Abstract: An apparatus and method for adding and removing a target base station from a network of base stations, which includes base stations adjacent the target base station. The apparatus is comprised of two attenuators: a first for setting an artificial receive noise power level and a second for setting a transmit level. The transmit level determines the forward link coverage area of the base station. The artificial noise level sets the reverse link coverage area of the base station. When a base station is added, initially the transmit power is low and the artificial receive noise power is high such that the forward and reverse link coverage areas are collocated in close proximity to the base station. As the base station blossoms into full operation, the artificial receive noise power is decreased and the transmit level is increased such that the two coverage areas of the base station remain balanced as the coverage areas expand. When a base station is to be removed from a system, the same attenuators are used to wilt the two coverage areas in unison as the power level transmitted from the base station decreases.

公开(公告)号：AU2004201450A1

公开(公告)日：2004-05-06

申请号：AU2004201450

申请日：2004-04-08

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSAY A JR

IPC: H04B17/00 ,  H04Q7/34

公开(公告)号：AT257298T

公开(公告)日：2004-01-15

申请号：AT94932118

申请日：1994-10-28

Applicant: QUALCOMM INC

Inventor： BLAKENEY ROBERT D II ,  WEAVER LINDSAY A JR ,  ZIV NOAM A ,  WILLIAMSON PAUL T ,  PADOVANI ROBERTO

IPC: H04B1/7087 ,  H04B1/7117 ,  H04B7/08 ,  H04B7/26 ,  H04J13/00

Abstract: In a receiver having a plurality of demodulation elements, a method of assigning the plurality of demodulation element so a set of available signals. A first method emphasizes diversity of transmitting devices so that power control is optimal. A second method emphasizes the maximum signal strength available to produce aggregate maximum signal strength. Both methods control the number of reassignments so that excessive data is not lost during the reassignment process. The apparatus comprises the plurality of demodulation elements, at least one searcher element, and a controller.

公开(公告)号：HK1055030A1

公开(公告)日：2003-12-19

申请号：HK03107290

申请日：2003-10-10

Applicant: QUALCOMM INC

Inventor： BLACK PETER J ,  PADOVANI ROBERTO ,  WEAVER LINDSAY A JR

IPC: H04B1/7073 ,  H03K3/84 ,  H04B1/707 ,  H04J13/00 ,  H04J13/10 ,  H04Q7/38 ,  H04B

Abstract: Techniques to improve the acquisition process in a spread spectrum environment. The signals from different CDMA systems are spread with different sets of PN sequences, with the PN sequences in each set being uncorrelated to the PN sequences in the other sets. By using uncorrelated PN sequences, the likehood of detecting a pilot signal from an undesired system is reduced or minimized, and the mean time to acquisition of the pilot signal from the desired system is improved. The mobile station can attempt to acquire the pilot signal by processing the received signal with a first set of PN sequences corresponding to a first hypothesis of the particular signal being acquired. If acquisition of the pilot signal fails, a second set of PN sequences corresponding to a second hypothesis is selected and used to process the received signal. The PN sequences in the second set are uncorrelated to the PN sequences in the first set. The PN sequences for the first set can be generated based on the characteristic polynomials defined by IS-95-A, and the PN sequences for the second set can be the reverse of the PN sequences for the first set.

公开(公告)号：AT237204T

公开(公告)日：2003-04-15

申请号：AT96941935

申请日：1996-08-29

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSAY A JR ,  ANTONIO FRANKLIN P ,  DEAN RICHARD F

IPC: H04L5/16 ,  H04B7/005 ,  H04B7/15 ,  H04B7/26 ,  H04J3/08 ,  H04W16/26 ,  H04W52/40 ,  H04W52/46

Abstract: A method and apparatus for time division duplex (TDD) repeating a spread spectrum signal, where spread spectrum signal is comprised of a series of code symbol modulated with a pseudonoise (PN) sequence. The TDD repeater receives intermittently the spread spectrum signal at a location remote from a source supplying the spread spectrum signal. The TDD repeater amplifies and delays the received spread spectrum signal by a predetermined amount. The TDD repeater transmits intermittently the delayed amplified received spread spectrum signal such that the TDD is not receiving the spread spectrum signal when it is transmitting the signal energy.

公开(公告)号：IN189670B

公开(公告)日：2003-04-05

申请号：IN1541MA1995

申请日：1995-11-27

Applicant: QUALCOMM INC

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

IPC: H03B29/00 ,  H04L27/18

公开(公告)号：DK0536334T3

公开(公告)日：2002-09-09

申请号：DK91915727

申请日：1991-06-21

Applicant: QUALCOMM INC

Inventor： GILHOUSEN KLEIN S ,  WHEATLEY CHARLES E III ,  JACOBS IRWIN M ,  PADOVANI ROBERTO ,  WEAVER LINDSAY A JR ,  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：AU3523700A

公开(公告)日：2000-09-28

申请号：AU3523700

申请日：2000-03-10

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSAY A JR ,  HARMS BRIAN K ,  SOONG ANTHONY C K ,  SCHWARTZ BRUCE S

IPC: H04B7/005

Abstract: The invention is a CDMA signal transmission control technology (316). A CDMA (307) signal is transmitted that has in-band components and out-of-band components. Transmit control logic (316) automatically generates a ratio of signal strength of the in-band components versus the out-of-band components. In some embodiments of the invention, control logic (436) generates a transmit power metric signal based on the ratio. In other embodiments of the invention, control logic (436) determines excess forward link capacity based on the ratio. The CDMA signal transmission control technology (166) can be implemented in a CDMA base station (312).

公开(公告)号：AU3522000A

公开(公告)日：2000-09-28

申请号：AU3522000

申请日：2000-03-10

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSAY A JR ,  HARMS BRIAN K ,  SOONG ANTHONY C K

IPC: H04B1/707

Abstract: The invention is a CDMA decresting technology that reduces or eliminates peaks in the CDMA signal. The CDMA technology generates a correction signal in response to peaks in the CDMA signal that exceed a value. The value typically corresponds to the maximum power level of a power amplifier. The CDMA technology combines the correction signal with the CDMA signal to generate a decrested CDMA signal with reduced peaks. In some examples of the invention, the CDMA technology processes polar coordinate representations of the quadrature components of the CDMA signal to generate the correction signal. Using the invention, the power amplifier in a CDMA base station can operate at increased power levels without exceeding out-of-band signal power limitations. As a result, the base station operates more efficiently and with a greater range or capacity.

公开(公告)号：CA2364363A1

公开(公告)日：2000-09-14

申请号：CA2364363

申请日：2000-03-10

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSAY A JR ,  HARMS BRIAN K ,  SOONG ANTHONY C K

IPC: H04B1/707

Abstract: The invention is a CDMA decresting technology that reduces or eliminates pea ks in the CDMA signal. The CDMA technology generates a correction signal in response to peaks in the CDMA signal that exceed a value. The value typicall y corresponds to the maximum power level of a power amplifier. The CDMA technology combines the correction signal with the CDMA signal to generate a decrested CDMA signal (515) with reduced peaks. In some examples of the invention, the CDMA technology processes polar coordinate representations of the quadrature components of the CDMA signal to generate the correction signal. Using the invention, the power amplifier (625) in a CDMA base statio n can (512) operate at increased power levels without exceeding out-of-band signal power limitations. As a result, the base station operates more efficiently and with a greater range or capacity.