公开(公告)号：NO20070422L

公开(公告)日：2007-03-30

申请号：NO20070422

申请日：2007-01-23

Applicant: QUALCOMM INC

Inventor： BENDER PAUL E ,  LEVIN JEFFREY A ,  SMEE JOHN E ,  HOU JILEI ,  CORALLI ALESSANDRO VANELLI ,  PFISTER HENRY DAVID ,  PADOVANI ROBERTO ,  BUTLER BRIAN K ,  WILBORN THOMAS B

IPC: H04B1/707

公开(公告)号：FI20060275A

公开(公告)日：2006-03-23

申请号：FI20060275

申请日：2006-03-23

Applicant: QUALCOMM INC

Inventor： BUTLER BRIAN K ,  GILHOUSEN KLEIN S

IPC: H04B7/26 ,  H04L1/00 ,  H04W4/12 ,  H04W48/12 ,  H04W52/02 ,  H04W68/00 ,  H04W68/02 ,  H04W68/08 ,  H04W76/02 ,  H04W84/04 ,  H04W84/08

Abstract: The method pages (fig 2) a wireless terminal in a wireless telecommunications system and transmits a quick page message via a less encoded channel and generates a full page message via a more encoded channel. The quick page massege contains less information than the full page message. The quick page message is for notifying the wireless terminal to begin processing for the full page message, and comprises a single bit of data. The full page message is transmitted during a second time slot assigned to the wireless terminal that occurs after the first time slot.

公开(公告)号：ES2248631T3

公开(公告)日：2006-03-16

申请号：ES02794135

申请日：2002-12-03

Applicant: QUALCOMM INC

Inventor： BUTLER BRIAN K ,  WOLF JACK K ,  MILNE RYAN

IPC: H03M13/15 ,  H03M13/19 ,  H03M13/37

Abstract: Procedimiento para realizar la decodificación de bloque en un bloque recibido de símbolos codificados previamente de columna en columna con un código de bloque lineal (N, K), y de fila en fila con un código de detección de errores, que comprende: la identificación de una palabra de código correspondiente a una columna del bloque recibido que contiene un error de símbolo no detectado mediante dicho código de detección de errores; la determinación del emplazamiento del error de símbolo no detectado en la palabra de código; el marcado de la fila del bloque recibido que contiene el error de símbolo no detectado, como fila suprimida; y la realización de la decodificación de bloque para el bloque recibido que contiene la fila marcada como suprimida.

公开(公告)号：CA2222928C

公开(公告)日：2006-01-24

申请号：CA2222928

申请日：1997-04-01

Applicant: QUALCOMM INC

Inventor： BUTLER BRIAN K ,  AGRAWAL AVNEESH

IPC: H04B1/04 ,  H04B7/216 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04J13/18 ,  H04Q7/38

Abstract: A system and method for enabling multiple transmitters (400) to share a single code division multiplexed (CDM) or code division multiple access (CDMA) channel using orthogonal waveforms. A set of orthogonal channelizing codes W i(t) is generated, and each transmitter (400) is allocated orthogonal channelizing codes and pseudonoise polynomials in a predetermined manner. The transmitters channelize each user signal using an orthogonal channelizing code W i(t), and spread each user signal using a pseudonoise (PN) spreading code. Each transmitter employs the same PN spreading codes and time off-sets. Additionally, no one orthogonal channelizing code is assigned to more than one transmitter during the time period they are sharing a CDM channel. The spread signals are summed at each transmitter (404) prior to transmission as a composite signal. The offsets are time-precorrected (406, 510) to ensure time alignment at the receivers. The frequencies of the signals are precorrected (408, 512) to ensure frequency alignment at the receivers.

公开(公告)号：MY119079A

公开(公告)日：2005-03-31

申请号：MYPI9701431

申请日：1997-04-02

Applicant: QUALCOMM INC

Inventor： BUTLER BRIAN K ,  AVNEESH AGRAWAL

IPC: H04B7/216 ,  H04B1/04 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04J13/18 ,  H04Q7/38

Abstract: A SYSTEM AND METHOD FOR ENABLING MULTIPLE TRANSMITTERS (400) TO SHARE A SINGLE CODE DIVISION MULTIPLEXED (CDM) OR CODE DIVISION MULTIPLE ACCESS (CDMA) CHANNEL USING ORTHOGONAL WAVEFORMS. A SET OF ORTHOGONAL CHANNELIZING CODES WI(T) IS GENERATED, AND EACH TRANSMITTER (400) IS ALLOCATED ORTHOGONAL CHANNELIZING CODES AND PSEUDONOISE POLYNOMIALS IN A PREDETERMINED MANNER. THE TRANSMITTERS CHANNELIZE EACH USER SIGNAL USING AN ORTHOGONAL CHANNELIZING CODE WI(T), AND SPREAD EACH USER SIGNAL USING A PSEUDONOISE (PN) SPREADING CODE. EACH TRANSMITTER EMPLOYS THE SAME PN SPREADING CODES AND TIME OFFSETS. ADDITIONALLY, NO ONE ORTHOGONAL CHANNELIZING CODE IS ASSIGNED TO MORE THAN ONE TRANSMITTER DURING THE TIME PERIOD THEY ARE SHARING A CDM CHANNEL. THE SPREAD SIGNALS ARE SUMMED AT EACH TRANSMITTER (404) PRIOR TO TRANSMISSION AS A COMPOSITE SIGNAL. THE OFFSETS ARE TIME-PRECORRECTED (406, 510) TO ENSURE TIME ALIGNMENT AT THE RECEIVERS. THE FREQUENCIES OF THE SIGNALS ARE PRECORRECTED (408, 512) TO ENSURE FREQUENCY ALIGNMENT AT THE RECEIVERS.FIGURE 4A

公开(公告)号：CA2214124C

公开(公告)日：2004-03-16

申请号：CA2214124

申请日：1996-12-23

Applicant: QUALCOMM INC

Inventor： BUTLER BRIAN K

IPC: H03G3/30 ,  H03F1/32 ,  H03G3/20 ,  H03F3/24 ,  H04B15/00 ,  H04B1/69

Abstract: A system for substantially eliminating nonlinear distortion, such as intermodulation products, introduced when a signal is processed by a nonlinear device (106). The system adds an out-of-band signal (111) to an input signal (101) to produce a combined signal (105) having a power that substantially equals a nominal operating point power for a nonlinear device (106). Preferably, the instantaneous power of the out-of-band signal (111) is adjusted by an automatic gain amplifier (120). The combined signal (105) is input to the nonlinear device (106) to produce an output. A filter (108) processes the output of the nonlinear device (106) to recover the information content of the original signal (101) after processing by the nonlinear device (106). For example, if the nonlinear device (106) is a power amplifier, the filtered output (109) is an amplification of the input signal (101).

公开(公告)号：CA2171220C

公开(公告)日：2003-11-25

申请号：CA2171220

申请日：1994-09-23

Applicant: QUALCOMM INC

Inventor： KINDRED DANIEL RAY ,  BUTLER BRIAN K ,  ZEHAVI EPHRAIM ,  WOLF JACK KEIL

IPC: H04L1/12 ,  H03M13/23 ,  H03M13/37 ,  H03M13/41 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08 ,  H04L1/20 ,  H04L25/02 ,  H04L25/03 ,  H04L25/08 ,  H04B7/204 ,  H04Q7/22

Abstract: A Viterbi decoder (20) for recovering the original bit data stream that was convolutionally encoded as a code symbol stream in a Code Division Multiple Access (CDMA) mobile communication system (22). The d ecoder (20) simultaneously decodes at the several data rates associated with certain multirate vocoders. The decoder (20) can decod e at an unknown data rate in either continuous or framed packed modes. It accomplishes this by simultaneously decoding at multiple ra tes and by creating one or more data quality metrics for each decoded data packet. Special input and output buffering is provided to isola te the decoder (50) from system timing constraints. The input buffer (48) includes selection and accumulation logic to organize code symbo l data into the packet order for repeat mode or random b urst mode at lower frame data rates. Decoded data packets for each of several pre determined data transfer rates are held in an output buf fer (54) for about half of the decoding cycle, thereby permitting the system mic roprocessor to examine and select the appropriate decode d data packet. The decoder (50) also can be reconfigured to operate at any one of several predetermined convolutional encoding algorit hms The Viterbi decoder (20), implemented as a single monolithic integrated circ uit, can be used in anyand all of many different multiu ser telecommunications channels.

公开(公告)号：AU2002359587A8

公开(公告)日：2003-06-17

申请号：AU2002359587

申请日：2002-12-03

Applicant: QUALCOMM INC

Inventor： MILNE RYAN ,  WOLF JACK K ,  BUTLER BRIAN K

IPC: H03M13/15 ,  H03M13/19 ,  H03M13/37 ,  H03M13/29

Abstract: Techniques for efficiently performing erasure-and-single-error correction block decoding on a received block of symbols previously coded column-wise with an (N, K) linear block code and row-wise with an error detection code (e.g., a CRC code). Initially, each row of the received block is marked as either an erased row or an un-erased row. To perform erasure-and-single-error correction block decoding on the received block, a codeword corresponding to a column of the received block containing an undetected symbol error is initially identified. The location of the symbol error in the codeword is then determined based on a particular block decoding scheme and corresponding to the selected (N, K) block code. The row of the received block containing the symbol error is then marked as an erased row. Block decoding may then be performed for the received block with the newly marked erased row containing the symbol error.

公开(公告)号：NO20081767L

公开(公告)日：2002-03-13

申请号：NO20081767

申请日：2008-04-10

Applicant: QUALCOMM INC

Inventor： TIEDEMANN JR EDWARD G ,  JOU YU-CHEUN ,  SAIFUDDIN AHMED ,  BUTLER BRIAN K

IPC: H04B7/005

公开(公告)号：NO20020295L

公开(公告)日：2002-03-13

申请号：NO20020295

申请日：2002-01-18

Applicant: QUALCOMM INC

Inventor： JOU YU-CHEUN ,  TIEDEMANN JR EDWARD G ,  SAIFUDDIN AHMED ,  BUTLER BRIAN K

IPC: H04B7/26 ,  H04W52/54 ,  H04B1/707 ,  H04B7/005

Abstract: A method for a base station is disclosed for controlling the transmission energy of forward link signals comprising the steps of receiving a potentially gated reverse link signal including forward link power control bits, determining whether said power control bits have been gated out, and adjusting forward link transmission energy in accordance with said forward link power control bits only when said determination as to whether said forward link power control bits have been gated out indicates that said power control bits have not been gated out.