公开(公告)号：AU3397000A

公开(公告)日：2000-09-28

申请号：AU3397000

申请日：2000-03-10

Applicant: QUALCOMM INC

Inventor： HARMS BRIAN K ,  SOONG ANTHONY C K ,  FUNK THOMAS J ,  FLOWERS LARRY D

IPC: H04B1/69 ,  H04B1/62 ,  H04B1/707

Abstract: The invention is a CDMA spectral shaping technology that attenuates the out-of-band signal power in the CDMA signal. The in-band CDMA signal is attenuated near the corner frequencies to reduce components that provide a disproportionate contribution to the out-of-band signal power. The power amplifier in the CDMA base station can then operate at higher power levels without exceeding out-of-band signal power limitations. As a result, the power amplifier operates more efficiently and extends the range or capacity of the base station. In some examples of the invention, spectral shaping digital filters are placed between the cell site modem and the digital-to-analog converter in the base station. In other examples of the invention, spectral shaping analog filters are placed between the digital-to-analog converter and the low-pass filter in the base station.

公开(公告)号：CA2364359A1

公开(公告)日：2000-09-14

申请号：CA2364359

申请日：2000-03-10

Applicant: QUALCOMM INC

Inventor： SOONG ANTHONY C K ,  HARMS BRIAN K ,  FLOWERS LARRY D ,  FUNK THOMAS J

IPC: H04B1/69 ,  H04B1/62 ,  H04B1/707

Abstract: The invention is a CDMA spectral shaping technology (116) that attenuates th e out-of-band signal power in the CDMA signal. The in-band CDMA signal is attenuated near the corner frequencies to reduce components that provide a disproportionate contribution to the out-of-band signal power. The power amplifier (625) in the CDMA base station (512) can then operate at higher power levels without exceeding out-of-band signal power limitations. As a result, the power amplifier (625) operates more efficiently and extends the range or capacity of the base station. In some examples of the invention, spectral shaping digital filters (516) are placed between the cell site mode m (621) and the digital-to-analog converter (623) in the base station. In othe r examples of the invention, spectral shaping analog filters (516) are placed between the digital-to-analog converter (722) and the low-pass filter (623) in the base station.

公开(公告)号：BR0008810A

公开(公告)日：2003-03-05

申请号：BR0008810

申请日：2000-03-10

Applicant: QUALCOMM INC

Inventor： SOONG ANTHONY C K ,  WEAVER LINDSAY A JR ,  HARMS BRIAN K ,  FUNK THOMAS J ,  FLOWERS LARRY D ,  SCHWARTZ BRUCE S ,  PRESSLEY TODD A

IPC: H04B1/707 ,  H04B7/005

Abstract: The invention is a CDMA transmission control technology that includes various combinations of the following functionality: decresting, in-band to out-of-band ratio (RIO), power control, and spectral shaping. Decresting reduces peaks in the CDMA signal. RIO generates a ratio based on the signal strength of in-band versus out-of-band portions of the CDMA signal. Power control adjusts the gain of the CDMA signal based on quadrature signal calculations. Spectral shaping attenuates in-band portions of the CDMA signal adjacent to the corner frequencies. The CDMA transmission control technology can be implemented in a CDMA base station to extend range and capacity.

公开(公告)号：AU3622400A

公开(公告)日：2000-09-28

申请号：AU3622400

申请日：2000-03-10

Applicant: QUALCOMM INC

Inventor： SOONG ANTHONY C K ,  WEAVER LINDSAY A JR ,  HARMS BRIAN K ,  FUNK THOMAS J ,  FLOWERS LARRY D ,  SCHWARTZ BRUCE S ,  PRESSLEY TODD A

IPC: H04B1/707 ,  H04B7/005

Abstract: The invention is a CDMA transmission control technology that includes various combinations of the following functionality: decresting, in-band to out-of-band ratio (RIO), power control, and spectral shaping. Decresting reduces peaks in the CDMA signal. RIO generates a ratio based on the signal strength of in-band versus out-of-band portions of the CDMA signal. Power control adjusts the gain of the CDMA signal based on quadrature signal calculations. Spectral shaping attenuates in-band portions of the CDMA signal adjacent to the corner frequencies. The CDMA transmission control technology can be implemented in a CDMA base station to extend range and capacity.

公开(公告)号：BR0008807A

公开(公告)日：2003-03-05

申请号：BR0008807

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：BR0008805A

公开(公告)日：2002-02-13

申请号：BR0008805

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：AU3622300A

公开(公告)日：2000-09-28

申请号：AU3622300

申请日：2000-03-10

Applicant: QUALCOMM INC

Inventor： SCHWARTZ BRUCE S ,  HARMS BRIAN K ,  SOONG ANTHONY C K ,  PRESSLEY TODD A

IPC: H04B7/005 ,  H04W52/52

Abstract: The invention is CDMA quadrature signal technology that controls the transmit power of a CDMA signal. The CDMA quadrature signal technology receives a CDMA signal, and in response, process quadrature components of the CDMA signal to generate a power control signal. The CDMA quadrature signal technology adjusts the gain of the CDMA signal in response to the power control signal. A CDMA transmitter transmits the CDMA signal after the gain is adjusted. One example of the CDMA transmitter is a CDMA base station. Using the invention, a multi-sector CDMA base station can control power without transferring gain information to base station components for all sectors. The invention eliminates unnecessary data transfer and storage.

公开(公告)号：BR0008808A

公开(公告)日：2002-12-03

申请号：BR0008808

申请日：2000-03-10

Applicant: QUALCOMM INC

Inventor： HARMS BRIAN K ,  SOONG ANTHONY C K ,  FUNK THOMAS J ,  FLOWERS LARRY D

IPC: H04B1/69 ,  H04B1/62 ,  H04B1/707

Abstract: The invention is a CDMA spectral shaping technology that attenuates the out-of-band signal power in the CDMA signal. The in-band CDMA signal is attenuated near the corner frequencies to reduce components that provide a disproportionate contribution to the out-of-band signal power. The power amplifier in the CDMA base station can then operate at higher power levels without exceeding out-of-band signal power limitations. As a result, the power amplifier operates more efficiently and extends the range or capacity of the base station. In some examples of the invention, spectral shaping digital filters are placed between the cell site modem and the digital-to-analog converter in the base station. In other examples of the invention, spectral shaping analog filters are placed between the digital-to-analog converter and the low-pass filter in the base station.

公开(公告)号：HK1042795A1

公开(公告)日：2002-08-23

申请号：HK02104335

申请日：2002-06-10

Applicant: QUALCOMM INC

Inventor： SOONG ANTHONY C K ,  WEAVER LINDSAY A JR ,  HARMS BRIAN K ,  FUNK THOMAS J ,  FLOWERS LARRY D ,  SCHWARTZ BRUCE S ,  PRESSLEY TODD A

IPC: H04B1/707 ,  H04B7/005 ,  H04B

Abstract: The invention is a CDMA transmission control technology that includes various combinations of the following functionality: decresting, in-band to out-of-band ratio (RIO), power control, and spectral shaping. Decresting reduces peaks in the CDMA signal. RIO generates a ratio based on the signal strength of in-band versus out-of-band portions of the CDMA signal. Power control adjusts the gain of the CDMA signal based on quadrature signal calculations. Spectral shaping attenuates in-band portions of the CDMA signal adjacent to the corner frequencies. The CDMA transmission control technology can be implemented in a CDMA base station to extend range and capacity.

公开(公告)号：CA2364397A1

公开(公告)日：2000-09-14

申请号：CA2364397

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 transm it power metric signal based on the ratio. In other embodiments of the inventio n, 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).