公开(公告)号：CA2193394C

公开(公告)日：2006-01-24

申请号：CA2193394

申请日：1995-06-22

Applicant: QUALCOMM INC

Inventor： ANTONIO FRANKLIN ,  GILHOUSEN KLEIN S ,  WOLF JACK K ,  ZEHAVI EPHRAIM

IPC: H01Q3/24 ,  H01Q3/26 ,  H04B1/7085 ,  H04B1/7117 ,  H04B1/712 ,  H04B7/02 ,  H04B7/26 ,  H04L1/06 ,  H04W16/28

Abstract: A system and method for adaptively sectorizing channel resources within a digital cellular communication system is disclosed herein. The system includes an antenna arrangement for providing at least first and second electromagnetic beams for receiving a first information signal transmitted by a specific one of a plurality of users, thereby generating first and second received signals. A first set of beam-forming signals are then generated from the first and second received signals. A demodulating receiver is provided for demodulating at least first and second beam-forming signals included within the first set of beam-forming signals, thereby producing first and second demodulated signals. The system further includes a tracking network for tracking multipath information signals, received from various positions and angles of incidence, based on comparison of the first and second demodulated signals.

公开(公告)号：HK1056794A1

公开(公告)日：2004-02-27

申请号：HK03109156

申请日：2003-12-16

Applicant: QUALCOMM INC

Inventor： WOLF JACK K

IPC: H03M20060101 ,  H03M13/29 ,  H03M13/45 ,  H04L1/00

Abstract: A decoding method and apparatus include providing capability for decoding data symbols that were encoded in a transmitter by either a serial-concatenated code or turbo code in a parallel processing fashion. The receiver upon knowing the encoding method may reconfigure the selection of data symbols from a table to accommodate the appropriate decoding process. Initially a data symbol estimate for a number of data symbols of a plurality of data symbols Xi, Yi, and Wi are determined. The estimates of data symbols Xi, Yi, and Wi passing to a first and second decision nodes include estimates for the variables in one or more encoding equations. A new estimate for the data symbol Xi is determined based on the estimate determined at the initial step and the new estimate for each occurrence of the data symbol Xi at the first and second decision nodes. After normalizing estimates of data symbols Xi, Yi, and Wi, a new estimate for data symbol Xi may be determined which holds more confidently a true value for the data symbol Xi than a previously determined estimate.

公开(公告)号：AT250829T

公开(公告)日：2003-10-15

申请号：AT95924673

申请日：1995-06-22

Applicant: QUALCOMM INC

Inventor： ANTONIO FRANKLIN P ,  GILHOUSEN KLEIN S ,  WOLF JACK K ,  ZEHAVI EPHRAIM

IPC: H01Q3/24 ,  H01Q3/26 ,  H04B1/7085 ,  H04B1/7117 ,  H04B1/712 ,  H04B7/26 ,  H04L1/06 ,  H04W16/28 ,  H04Q7/36

Abstract: A system and method for adaptively sectorizing channel resources within a digital cellular communication system is disclosed herein. The system includes an antenna arrangement for providing at least first and second electromagnetic beams for receiving a first information signal transmitted by a specific one of a plurality of users, thereby generating first and second received signals. A first set of beam-forming signals are then generated from the first and second received signals. A demodulating receiver is provided for demodulating at least first and second beam-forming signals included within the first set of beam-forming signals, thereby producing first and second demodulated signals. The system further includes a tracking network for tracking multipath information signals, received from various positions and angles of incidence, based on comparison of the first and second demodulated signals.

公开(公告)号：AU6969201A

公开(公告)日：2001-11-26

申请号：AU6969201

申请日：2001-05-14

Applicant: QUALCOMM INC

Inventor： WOLF JACK K

IPC: H03M13/29 ,  H03M13/45 ,  H04L1/00 ,  H03M13/00

Abstract: A decoding method and apparatus include providing capability for decoding data symbols that were encoded in a transmitter by either a serial-concatenated code or turbo code in a parallel processing fashion. The receiver upon knowing the encoding method may reconfigure the selection of data symbols from a table to accommodate the appropriate decoding process. Initially a data symbol estimate for a number of data symbols of a plurality of data symbols Xi, Yi, and Wi are determined. The estimates of data symbols Xi, Yi, and Wi passing to a first and second decision nodes include estimates for the variables in one or more encoding equations. A new estimate for the data symbol Xi is determined based on the estimate determined at the initial step and the new estimate for each occurrence of the data symbol Xi at the first and second decision nodes. After normalizing estimates of data symbols Xi, Yi, and Wi, a new estimate for data symbol Xi may be determined which holds more confidently a true value for the data symbol Xi than a previously determined estimate.

公开(公告)号：AU6625000A

公开(公告)日：2001-03-05

申请号：AU6625000

申请日：2000-08-07

Applicant: QUALCOMM INC

Inventor： ROSE GREGORY G ,  BENDER PAUL E ,  QUICK ROY FRANKLIN ,  WOLF JACK K

IPC: G09C1/00 ,  H04L9/32 ,  H04Q7/38 ,  H04L9/00

Abstract: A method for generating a message authentication code (MAC) includes the steps of distributing the bits of a message into a larger message in accordance with a pseudorandom number distribution format. The cyclic redundancy check (CRC) bits of the larger message are computed and used as the MAC for the message. The larger message need not be created. The remainder modulo the CRC polynomial of a polynomial x , where i is the intended bit position in the "larger message", is calculated. An exclusive-OR(XOR) operation is performed, bit by bit, on the CRC and the calculated remainder to derive the new CRC.

公开(公告)号：HK1009218A1

公开(公告)日：1999-05-28

申请号：HK98109852

申请日：1998-08-11

Applicant: QUALCOMM INC

Inventor： ZEHAVI EPHRAIM ,  WOLF JACK K ,  SCHIFF LEONARD N

IPC: H04L20060101 ,  H04B7/15 ,  H04J3/24 ,  H04J11/00 ,  H04J13/00 ,  H04L1/00 ,  H04L12/28 ,  H04L12/56 ,  H04W72/04

Abstract: A variable rate transmission system wherein a packet of variable rate data generated by a variable rate data source is modulated on traffic channel by traffic channel modulator if the capacity of the traffic channel is capable of transmitting the packet. And where the packet of variable rate data is modulated onto traffic channel by traffic channel modulator and at least one overflow channel by traffic channel modulator, if the capacity of the traffic channel is less than required to transmit the packet. A receiving system for receiving variable rate data transmitted in accordance with the above.

公开(公告)号：AU7985198A

公开(公告)日：1999-01-04

申请号：AU7985198

申请日：1998-06-22

Applicant: QUALCOMM INC

Inventor： WOLF JACK K

IPC: H04L27/18 ,  H03M13/23 ,  H03M13/25 ,  H04L1/00 ,  H03M13/00

公开(公告)号：AU699534B2

公开(公告)日：1998-12-03

申请号：AU5567596

申请日：1996-04-22

Applicant: QUALCOMM INC

Inventor： ZEHAVI EPHRAIM ,  WOLF JACK K ,  SCHIFF LEONARD N

IPC: H04B7/15 ,  H04J3/24 ,  H04J11/00 ,  H04J13/00 ,  H04L1/00 ,  H04L12/28 ,  H04L12/56 ,  H04W72/04

Abstract: A variable rate transmission system wherein a packet of variable rate data generated by a variable rate data source is modulated on traffic channel by traffic channel modulator if the capacity of the traffic channel is capable of transmitting the packet. And where the packet of variable rate data is modulated onto traffic channel by traffic channel modulator and at least one overflow channel by traffic channel modulator, if the capacity of the traffic channel is less than required to transmit the packet. A receiving system for receiving variable rate data transmitted in accordance with the above.

公开(公告)号：AU5383698A

公开(公告)日：1998-07-15

申请号：AU5383698

申请日：1997-12-11

Applicant: QUALCOMM INC

Inventor： WOLF JACK K ,  ZEHAVI EPHRAIM

IPC: H03M13/25 ,  H04L1/00 ,  H04L27/02 ,  H04L27/04 ,  H04L27/06

公开(公告)号：FI965180A

公开(公告)日：1997-02-20

申请号：FI965180

申请日：1996-12-20

Applicant: QUALCOMM INC

Inventor： ANTONIO FRANKLIN P ,  WOLF JACK K ,  GILHOUSEN KLEIN S ,  ZEHAVI EPHRAIM

IPC: H01Q3/26 ,  H04B1/7085 ,  H01Q3/24 ,  H04B1/7117 ,  H04B1/712 ,  H04B7/26 ,  H04L1/06 ,  H04W16/28 ,  H04B

Abstract: A system and method for adaptively sectorizing channel resources within a digital cellular communication system is disclosed herein. The system includes an antenna arrangement for providing at least first and second electromagnetic beams for receiving a first information signal transmitted by a specific one of a plurality of users, thereby generating first and second received signals. A first set of beam-forming signals are then generated from the first and second received signals. A demodulating receiver is provided for demodulating at least first and second beam-forming signals included within the first set of beam-forming signals, thereby producing first and second demodulated signals. The system further includes a tracking network for tracking multipath information signals, received from various positions and angles of incidence, based on comparison of the first and second demodulated signals.