公开(公告)号：JP2010252364A

公开(公告)日：2010-11-04

申请号：JP2010127062

申请日：2010-06-02

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： LEVIN JEFFREY A ,  RIDDLE CHRISTOPHER C ,  SHERMAN THOMAS R

IPC: H04B1/7115 ,  H04B1/712 ,  H04B7/26

CPC classification number: H04B1/7115 ,  H04B1/712

Abstract: PROBLEM TO BE SOLVED: To provide a remote unit receiver capable of demodulating a plurality of signal instances corresponding to a single remote unit to which a signal is transmitted.
SOLUTION: A first instance signal is demodulated to generate a first set energy value corresponding to a data value which is likely a first set signal. A second instance signal is demodulated to generate a second set energy value corresponding to a data value which is likely the first set signal. The first and second set energy values are coupled to determine an energy value of the sets coupled subsequently. A first estimated value of the most likely transmitting data value is determined based on the energy value of the sets coupled.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供能够解调与发送信号的单个远程单元对应的多个信号实例的远程单元接收机。 解决方案：解调第一实例信号以产生对应于可能是第一设置信号的数据值的第一设定能量值。 第二实例信号被解调以产生对应于可能是第一设定信号的数据值的第二设定能量值。 耦合第一和第二设定能量值以确定随后耦合的组的能量值。 基于所耦合的集合的能量值来确定最可能的发送数据值的第一估计值。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2009060632A

公开(公告)日：2009-03-19

申请号：JP2008243068

申请日：2008-09-22

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： MOTIWALA QUAEED ,  RIDDLE CHRISTOPHER C ,  BLESSENT LUCA ,  YEH SHIH-YI ,  FUCHS ROBERT J

IPC: H04B1/707 ,  H04B1/7117 ,  H04B7/26

CPC classification number: H04B1/7117 ,  H04B7/2659 ,  H04B2201/70707

Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for efficient use of communication resources for processing a plurality of data frames in a communication system.
SOLUTION: A data frame is partitioned into a plurality of portions of data symbols. A plurality of channel elements is assigned to demodulate data symbols of the plurality of portions of data symbols. Channel elements are assigned to the data frame at high data rate more than to the data frame at low data rate.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于在通信系统中有效利用通信资源来处理多个数据帧的方法和装置。 解决方案：将数据帧分割成多个数据符号部分。 分配多个信道单元以对数据符号的多个部分中的数据符号进行解调。 信道要素以高数据速率被分配给数据帧，而不是以低数据速率分配给数据帧。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：BRPI0418272A

公开(公告)日：2007-05-02

申请号：BRPI0418272

申请日：2004-12-29

Applicant: QUALCOMM INC

Inventor： HSU CHIH-PING ,  SHIU DA-SHAN ,  OH HYUKJUN ,  RIDDLE CHRISTOPHER C ,  KASTURI NITIN ,  SUBRAHMANYA PARVATHANATHAN

IPC: H04B7/005

公开(公告)号：AT323342T

公开(公告)日：2006-04-15

申请号：AT00907220

申请日：2000-02-08

Applicant: QUALCOMM INC

Inventor： LEVIN JEFFREY A ,  RIDDLE CHRISTOPHER C ,  SHERMAN TOM

IPC: H04B1/7085 ,  H04B1/707

Abstract: In order to time track an incoming signal, a receiver demodulates a first instance of a signal to produce a first set of energy values corresponding to a set of possible data values of the signal. The receiver also demodulates a second instance of the signal to produce a second set of energy values corresponding to the set of possible data values. The receiver combines the first and the second sets of energy values to determine a combined set of energy values. The receiver determines a first estimate of a most likely transmitted data value based upon the combined set of energy values. The receiver decovers an early set of despread samples of the first instance using a symbol corresponding to the first estimate to produce a first early energy value. The receiver decovers a late set of despread samples of the first instance using the symbol corresponding to the first estimate to produce a first late energy value. Finally, the receiver determines a time offset of the first instance based upon the first early and the first late energy values.

公开(公告)号：AT308163T

公开(公告)日：2005-11-15

申请号：AT99964215

申请日：1999-12-09

Applicant: QUALCOMM INC

Inventor： LEVIN JEFFREY A ,  RIDDLE CHRISTOPHER C ,  SHERMAN TOM B

IPC: H04B1/7117 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/26 ,  H04B1/707

Abstract: A wireless receiver receiving multipath Wash-code symbols determines which of fingers 402, 410 have locked on a signal. Measurements of the correlation energies between the received signal and all possible symbols are stored in energy storage units 404, 412. The actual signals are combined in combiner 408. A maximum determiner 416 determines the most likely combined symbol, and an index for this symbol is fed back to the energy storage units. Lock detectors 406, 414 use the measurement for this fed-back symbol to determine whether the finger has locked onto a path. This determination is used to decide whether the next signal detected by that finger should be applied to the combiner.

公开(公告)号：AT270009T

公开(公告)日：2004-07-15

申请号：AT99941157

申请日：1999-08-13

Applicant: QUALCOMM INC

Inventor： RIDDLE CHRISTOPHER C ,  LEVIN JEFFREY A

IPC: H03M7/24 ,  G06F7/48 ,  H03M7/34 ,  H03M7/00 ,  H03M3/02

Abstract: A method and apparatus for compressing fixed point signals without introducing a bias. Signals are compressed according to a dithered rounding approach wherein signal values are rounded up and rounded down with approximately equal probability, canceling the bias that would otherwise result from the rounding operation. Numerical properties of the input signal are exploited in order to determine whether the signal value should be rounded up or down. Signal compression may, therefore, be introduced at multiple points within a system without accumulating a signal bias and degrading downstream performance. Further, one bit signal compression may be achieved in a particularly efficient fashion with a minimal amount of hardware.

公开(公告)号：AU766145B2

公开(公告)日：2003-10-09

申请号：AU2050200

申请日：1999-12-09

Applicant: QUALCOMM INC

Inventor： LEVIN JEFFREY A ,  RIDDLE CHRISTOPHER C ,  SHERMAN TOM B

IPC: H04B1/7117 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/26 ,  H04B1/707

Abstract: A wireless receiver receiving multipath Wash-code symbols determines which of fingers 402, 410 have locked on a signal. Measurements of the correlation energies between the received signal and all possible symbols are stored in energy storage units 404, 412. The actual signals are combined in combiner 408. A maximum determiner 416 determines the most likely combined symbol, and an index for this symbol is fed back to the energy storage units. Lock detectors 406, 414 use the measurement for this fed-back symbol to determine whether the finger has locked onto a path. This determination is used to decide whether the next signal detected by that finger should be applied to the combiner.

公开(公告)号：PL349809A1

公开(公告)日：2002-09-09

申请号：PL34980900

申请日：2000-02-08

Applicant: QUALCOMM INC

Inventor： LEVIN JEFFREY A ,  RIDDLE CHRISTOPHER C ,  SHERMAN TOM

IPC: H04B1/7085 ,  H04B1/707

Abstract: In order to time track an incoming signal, a receiver demodulates a first instance of a signal to produce a first set of energy values corresponding to a set of possible data values of the signal. The receiver also demodulates a second instance of the signal to produce a second set of energy values corresponding to the set of possible data values. The receiver combines the first and the second sets of energy values to determine a combined set of energy values. The receiver determines a first estimate of a most likely transmitted data value based upon the combined set of energy values. The receiver decovers an early set of despread samples of the first instance using a symbol corresponding to the first estimate to produce a first early energy value. The receiver decovers a late set of despread samples of the first instance using the symbol corresponding to the first estimate to produce a first late energy value. Finally, the receiver determines a time offset of the first instance based upon the first early and the first late energy values.

公开(公告)号：AU5870400A

公开(公告)日：2001-01-02

申请号：AU5870400

申请日：2000-06-09

Applicant: QUALCOMM INC

Inventor： RIDDLE CHRISTOPHER C ,  LEVIN JEFFREY A

IPC: H04L25/02

Abstract: A Wireless Code Division Multiple Access method and apparatus for determining the transmitted rate of a voice/data signal from a mobile station to a Base Station. Variable rate vocoders transmit voice at one of several predetermined frame rates. The receiver determines the transmitted rate based on one of several frame parameters. One of the parameters is received frame energy. The received frame energy is measured over the length of the relevant portion of the frame. Energy is measured over the half of the frame that can only contain energy if a full rate frame is sent. If the energy measured exceeds a threshold, then full rate is indicated. Else, energy is measured over the fourth of a frame that can only contain energy if a half rate frame is sent. If the energy exceeds a threshold, then half rate is indicated. The procedure is repeated for quarter and eighth rates.

公开(公告)号：DE60038484T2

公开(公告)日：2009-05-07

申请号：DE60038484

申请日：2000-02-24

Applicant: QUALCOMM INC

Inventor： LEVIN JEFFREY A ,  RIDDLE CHRISTOPHER C ,  SHERMAN THOMAS R

IPC: H04B1/707 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/26

Abstract: In a remote unit receiver capable of demodulating a plurality of signal instances corresponding to a singe remote unit transmitted signal, a first instance of a signal is demodulated to produce a first set of energy values corresponding to a set of possible data values of the signal. A second instance of the signal is demodulated to produce a second set of energy values corresponding to the set of possible data values. The first and the second sets of energy values are then combined to determine a combined set of energy values. A first estimate of a most likely transmitted data value is determined based upon the combined set of energy values An energy level of the first instance is determined based upon the energy value within the first set of energy values corresponding to the first estimate of the most likely transmitted data value.