公开(公告)号：CA2652146A1

公开(公告)日：2007-12-13

申请号：CA2652146

申请日：2007-05-29

Applicant: QUALCOMM INC

Inventor： IM SE BIN ,  PARK JONG HYEON ,  KIM JE WOO ,  CHOI HYUNG JIN

IPC: H04K1/10 ,  H04L27/28

Abstract: An embodiment of the present invention is a technique to process signals in a communication system. A channel impulse response (CIR) generator genera tes a time-domain windowed CIR from a received signal using a window functio n. A thresholder thresholds the time-domain windowed CIR. A compensator comp ensates window effect for the thresholded time-domain windowed CIR to provid e an enhanced channel estimate in frequency domain.

公开(公告)号：CA2685899C

公开(公告)日：2016-05-24

申请号：CA2685899

申请日：2008-05-15

Applicant: QUALCOMM INC

Inventor： BLACK PETER J ,  WU QIANG ,  ZHAO WANLUN ,  TOKGOZ YELIZ ,  PADOVANI ROBERTO ,  NAGUIB AYMAN FAWZY ,  KIM JE WOO ,  AGASHE PARAG A ,  BHUSHAN NAGA ,  DAYAL PRANAV

IPC: H04L5/02

Abstract: Briefly, in accordance with one embodiment, a method of transmitting signals is provided. Signal waveforms are transmitted from at least two respective sectors. The at least two respective sectors are from at least two different sets of a superset of sectors. The transmitted signal waveforms include signal waveforms at least nearly mutually orthogonal at least along a particular signal dimension. An advantage of such an embodiment, for example, is reduced signal interference.

公开(公告)号：BRPI0914587A2

公开(公告)日：2015-12-22

申请号：BRPI0914587

申请日：2009-01-21

Applicant: QUALCOMM INC

Inventor： BANISTER BRIAN CLARK ,  KANG INYUP ,  HURT JAMES Y ,  KIM JE WOO ,  PARK JONG HYEON ,  BRAHLER MATTHIAS

IPC: H04L1/06

公开(公告)号：BRPI0915499A2

公开(公告)日：2015-11-10

申请号：BRPI0915499

申请日：2009-07-08

Applicant: QUALCOMM INC

Inventor： NAGUIB AYMAN FAWZY ,  KIM JE WOO ,  PARK JONG HYEON ,  CHANG TAE RYUN

IPC: H04L27/26

公开(公告)号：BRPI0821988A2

公开(公告)日：2015-09-08

申请号：BRPI0821988

申请日：2008-07-17

Applicant: QUALCOMM INC

Inventor： SIM BOK TAE ,  LEE CHUN WOO ,  KIM JE WOO ,  PARK JONG HYEON ,  PARK JU WON ,  NANAVATI SAMEER ,  GLAZKO SERGUEI A ,  CHANG TAE RYUN

IPC: H04L1/00

公开(公告)号：BRPI0822119A2

公开(公告)日：2015-08-04

申请号：BRPI0822119

申请日：2008-06-16

Applicant: QUALCOMM INC

Inventor： PARK JONG HYEON ,  CHANG TAE RYUN ,  KIM JE WOO

IPC: H04L27/26

公开(公告)号：CA2752630C

公开(公告)日：2015-04-07

申请号：CA2752630

申请日：2007-05-29

Applicant: QUALCOMM INC

Inventor： IM SE BIN ,  PARK JONG HYEON ,  KIM JE WOO ,  CHOI HYUNG JIN

IPC: H04B7/005 ,  H04B7/08 ,  H04J11/00

Abstract: An embodiment of the present invention is a technique to process signals in a communication system. A channel impulse response (CIR) generator generates a time-domain windowed CIR from a received signal using a window function. A thresholder thresholds the time-domain windowed CIR. A compensator compensates window effect for the thresholded time-domain windowed CIR to provide an enhanced channel estimate in frequency domain.

公开(公告)号：CA2706493C

公开(公告)日：2014-08-19

申请号：CA2706493

申请日：2008-12-12

Applicant: QUALCOMM INC

Inventor： PARK JONG HYEON ,  SIM BOK TAE ,  KIM JE WOO ,  GLAZKO SERGUEI A ,  NANAVATI SAMEER ,  PARK JU WON

IPC: H04L1/18

Abstract: A method and apparatus for combining retransmitted hybrid automatic repeat-request (HARQ) messages at different stages in an OFDM/OFDMA receiver are provided. A combination of different types of HARQ combiners may be designed into the receiver and selected on a per-channel basis. Proper selection of a HARQ combining scheme may reduce the required HARQ buffer size and may provide an increased combining gain when compared to conventional HARQ combining techniques. Furthermore, the HARQ combiner type may be dynamically selected through forward and reverse shifting between the different types of HARQ combining schemes in an effort to decrease the bit error ratio (BER) without saturating the HARQ buffer.

公开(公告)号：CA2716017C

公开(公告)日：2013-12-31

申请号：CA2716017

申请日：2008-06-19

Applicant: QUALCOMM INC

Inventor： PARK JONG HYEON ,  SIM BOK TAE ,  KIM JE WOO

IPC: H04B7/08 ,  H04B17/40 ,  H04L1/08 ,  H04L1/18

Abstract: A method for combining signals coming from multiple diversity sources may include performing maximal-ratio combining (MRC) based equalization and combining for receiver antenna diversity. The method may also include performing MRC-based equalization and combining for repetition diversity. The method may also include performing MRC-based equalization and combining for duplication diversity. The MRC-based equalization and combining for receiver antenna diversity, the MRC-based equalization and combining for repetition diversity, and the MRC-based equalization and combining for duplication diversity may each be performed separately.

公开(公告)号：BRPI0718865A2

公开(公告)日：2013-12-17

申请号：BRPI0718865

申请日：2007-11-05

Applicant: QUALCOMM INC

Inventor： PARK JU WON ,  PARK JONG HYEON ,  KIM JE WOO

IPC: H04L27/26

Abstract: In accordance with a detection method in a wireless communication system, an initial hypothesis for a starting position of a desired signal within a received wireless communication signal may be determined. The desired signal may have a conjugate symmetric property. At least one correlation value may be determined based on the initial hypothesis. The at least one correlation value may indicate the extent to which at least one sample sequence selected from the received signal has the conjugate symmetric property.