公开(公告)号：ZA200701275B

公开(公告)日：2009-09-30

申请号：ZA200701275

申请日：2007-02-13

Applicant: QUALCOMM INC

Inventor： MAO WANG MICHAEL ,  RAMASWAMY MURALI ,  FUYUN LING ,  RAJIV VIJAYAN

IPC: H04L20090101

Abstract: A method for improving frequency diversity in an OFDM system using interleaved interlaces for constellation symbol interleaving comprises interleaving a number of subcarriers of an interlace in a bit reversal fashion and interleaving a number of interlaces in the bit reversal fashion.

公开(公告)号：HK1041378B

公开(公告)日：2005-09-02

申请号：HK02103114

申请日：2002-04-25

Applicant: QUALCOMM INC

Inventor： FUYUN LING ,  JOSEPH P ODENWALDER

IPC: H03M13/27 ,  H04B7/06 ,  H04B7/26 ,  H04B14/04 ,  H04L20060101 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L27/26

公开(公告)号：HK1042792B

公开(公告)日：2005-07-29

申请号：HK02103460

申请日：2002-05-07

Applicant: QUALCOMM INC

Inventor： TAO CHEN ,  JACK M HOLTZMAN ,  KEITH SAINTS ,  CHARLES E WHEATLEY III ,  FUYUN LING ,  NAGABHUSHANA SINDHUSHAYANA

IPC: H04B20060101 ,  H04B1/04 ,  H04B7/005 ,  H04B7/26

公开(公告)号：ZA200701274B

公开(公告)日：2008-12-31

申请号：ZA200701274

申请日：2007-02-13

Applicant: QUALCOMM INC

Inventor： WANG MICHAEL MAO ,  RAMASWAMY MURALI ,  FUYUN LING ,  RAJIV VIJAYAN

IPC: H04L20090101

Abstract: A method for improving frequency diversity in an OFDM system using interleaved interlaces for constellation symbol interleaving comprises interleaving a number of subcarriers of an interlace in a bit reversal fashion and interleaving a number of interlaces in the bit reversal fashion.

公开(公告)号：ZA200701273B

公开(公告)日：2008-10-29

申请号：ZA200701273

申请日：2007-02-13

Applicant: QUALCOMM INC

Inventor： MAO WANG MICHAEL ,  RAMASWAMY MURALI ,  FUYUN LING ,  RAJIV VIJAYAN

IPC: H04L20090101

Abstract: A method for improving frequency diversity in an OFDM system using interleaved interlaces for constellation symbol interleaving comprises interleaving a number of subcarriers of an interlace in a bit reversal fashion and interleaving a number of interlaces in the bit reversal fashion.

公开(公告)号：ZA200607305B

公开(公告)日：2008-05-28

申请号：ZA200607305

申请日：2006-08-31

Applicant: QUALCOMM INC

Inventor： AAMOND KHANDEKAR ,  AVNEESH AGRAWAL ,  FUYUN LING

IPC: H04L20090101 ,  H04L1/00 ,  H04L25/03

Abstract: For an iterative channel and interference estimation and decoding scheme, prior information for channel gain and interference is initially obtained based on received pilot symbols. Forward information for code bits corresponding to received data symbols is derived based on the received data symbols and the prior information and then decoded to obtain feedback information for the code bits corresponding to the received data symbols. A posteriori information for channel gain and interference for each received data symbol is derived based on the feedback information for that received data symbol. The a posteriori information for the received data symbols and the prior information are combined to obtain updated information for channel gain and interference for each received data symbol. The process can be repeated for any number of iterations. The prior, a posteriori, and updated information may be represented by joint probability distributions on channel gain and interference. The forward and feedback information may be represented by log-likelihood ratios.

公开(公告)号：HK1052597B

公开(公告)日：2006-11-24

申请号：HK03104754

申请日：2003-07-04

Applicant: QUALCOMM INC

Inventor： FUYUN LING ,  NAGABHUSHANA T SINDHUSHAYANA ,  EDUARDO A S ESTEVES

IPC: H04B1/7097 ,  H04L20060101 ,  H03M13/23 ,  H03M13/25 ,  H03M13/29 ,  H04L1/20

公开(公告)号：HK1040011B

公开(公告)日：2005-09-02

申请号：HK02101499

申请日：2002-02-27

Applicant: QUALCOMM INC

Inventor： NAGGABHUSHANA SINDHUSHAYANA ,  JEREMY STEIN ,  RAJIV VIJAYAN ,  FUYUN LING

IPC: G06F11/10 ,  H03M13/27 ,  H03M20060101 ,  H03M13/29 ,  H04L1/00

公开(公告)号：PT1374466T

公开(公告)日：2019-09-27

申请号：PT02717372

申请日：2002-01-23

Applicant: QUALCOMM INC

Inventor： MARK WALLACE ,  JAY R WALTON ,  NAGABHUSHANA T SINDHUSHAYANA ,  FUYUN LING ,  IVAN FERNANDEZ

IPC: H04J11/00 ,  H04L1/00 ,  H04B7/04 ,  H04J99/00 ,  H04L27/26

公开(公告)号：MY139873A

公开(公告)日：2009-11-30

申请号：MYPI20044339

申请日：2004-10-21

Applicant: QUALCOMM INC

Inventor： RAMASWAMY MURALI ,  FUYUN LING ,  RAJIV VIJAYAN ,  WALKER KENT G ,  ASHOK MANTRAVADI

IPC: H04L12/18 ,  H04L12/56

Abstract: TO BROADCAST DIFFERENT TYPES OF TRANSMISSION HAVING DIFFERENT TIERS OF COVERAGE IN A WIRELESS BROADCAST NETWORK, EACH BASE STATION PROCESSES DATA FOR A WIDE-AREA TRANSMISSION IN ACCORDANCE WITH A FIRST MODE (OR CODING AND MODULATION SCHEME) TO GENERATE DATA SYMBOLS FOR THE WIDE-AREA TRANSMISSION AND PROCESSES DATA FOR A LOCALTRANSMISSION IN ACCORDANCE WITH A SECOND MODE TO GENERATE DATA SYMBOLS FOR THE LOCAL TRANSMISSION. THE FIRST AND SECOND MODES ARE SELECTED BASED ON THE DESIRED COVERAGE FOR WIDE-AREA AND LOCAL TRANSMISSIONS, RESPECTIVELY. THE BASE STATION ALSO GENERATES PILOTS AND OVERHEAD INFORMATION FOR LOCAL AND WIDE-AREA TRANSMISSIONS. THE DATA, PILOTS AND OVERHEAD INFORMATION FOR LOCAL AND WIDE-AREA TRANSMISSIONS ARE MULTIPLEXED ONTO THEIR TRANSMISSION SPANS, WHICH MAY BE DIFFERENT SETS OF FREQUENCY SUBBANDS, DIFFERENT TIME SEGMENTS, OR DIFFERENT GROUPS OF SUBBANDS IN DIFFERENT TIME SEGMENTS. MORE THAN TWO DIFFERENT TYPES OF TRANSMISSION MAY ALSO BE MULTIPLEXED AND BROADCAST.