公开(公告)号：DE602005008082D1

公开(公告)日：2008-08-21

申请号：DE602005008082

申请日：2005-09-16

Applicant: QUALCOMM INC

Inventor： NAMGOONG JUNE ,  XU HAO ,  BLACK PETER J ,  JAYARAMAN SRIKANT

IPC: H04L27/26 ,  H04B1/10 ,  H04L1/20

Abstract: The present patent application comprises a method and means for demodulating symbols, comprising converting an OFDM symbol from a time domain to a frequency domain, selecting pilot tones, making a soft decision based on received data, and estimating a channel frequency response. In another example, the method and means further comprises selecting guard tones. In another example, the method and means further comprises generating channel estimates for in-band and band-edge pilot tones.

公开(公告)号：AT400957T

公开(公告)日：2008-07-15

申请号：AT05797433

申请日：2005-09-16

Applicant: QUALCOMM INC

Inventor： NAMGOONG JUNE ,  XU HAO ,  BLACK PETER J ,  JAYARAMAN SRIKANT

IPC: H04L27/26 ,  H04B1/10 ,  H04L1/20

Abstract: The present patent application comprises a method and means for demodulating symbols, comprising converting an OFDM symbol from a time domain to a frequency domain, selecting pilot tones, making a soft decision based on received data, and estimating a channel frequency response. In another example, the method and means further comprises selecting guard tones. In another example, the method and means further comprises generating channel estimates for in-band and band-edge pilot tones.

公开(公告)号：NO20071739L

公开(公告)日：2007-06-15

申请号：NO20071739

申请日：2007-04-02

Applicant: QUALCOMM INC

Inventor： BLACK PETER J ,  JAYARAMAN SRIKANT ,  NAMGOONG JUNE ,  XU HAO

IPC: H04J11/00 ,  H04B1/10 ,  H04L27/26

Abstract: The present patent application comprises a method and means for demodulating symbols, comprising converting an OFDM symbol from a time domain to a frequency domain, selecting pilot tones, making a soft decision based on received data, and estimating a channel frequency response. In another example, the method and means further comprises selecting guard tones. In another example, the method and means further comprises generating channel estimates for in-band and band-edge pilot tones.

公开(公告)号：CA2730327A1

公开(公告)日：2006-03-30

申请号：CA2730327

申请日：2005-09-16

Applicant: QUALCOMM INC

Inventor： NAMGOONG JUNE ,  XU HAO ,  BLACK PETER J ,  JAYARAMAN SRIKANT

IPC: H04B17/00 ,  H03M13/45 ,  H04B1/10 ,  H04B7/08 ,  H04J11/00 ,  H04L27/26

Abstract: Noise variance estimation in wireless communications. Noise variance estimation includes receiving a signal 402 including an OFDM symbol having, in-band tones including in-band pilot tones, and band-edge tones including band-edge pilot tones and guard tones, estimating an effective noise variance for the in-band tones 702using the in--band pilot tones and channel estimates for the in-band pilot tones, and estimating an effective noise variance for the band-edge tones 704 using the band-edge pilot tones, channel estimates for the band-edge pilot tones, and the guard tones.

公开(公告)号：AU2005287062A1

公开(公告)日：2006-03-30

申请号：AU2005287062

申请日：2005-09-16

Applicant: QUALCOMM INC

Inventor： JAYARAMAN SRIKANT ,  XU HAO ,  BLACK PETER J ,  NAMGOONG JUNE

IPC: H04L27/26 ,  H04B1/10

Abstract: The present patent application comprises a method and means for demodulating symbols, comprising converting an OFDM symbol from a time domain to a frequency domain, selecting pilot tones, making a soft decision based on received data, and estimating a channel frequency response. In another example, the method and means further comprises selecting guard tones. In another example, the method and means further comprises generating channel estimates for in-band and band-edge pilot tones.

公开(公告)号：ES2901206T3

公开(公告)日：2022-03-21

申请号：ES17805326

申请日：2017-10-31

Applicant: QUALCOMM INC

Inventor： SANKAR HARI ,  NAMGOONG JUNE ,  JIANG JING ,  YOO JAE WON ,  MANOLAKOS ALEXANDROS ,  SORIAGA JOSEPH BINAMIRA ,  GOROKHOV ALEXEI

IPC: H04L5/00 ,  H04W8/22

Abstract: Un método (700) de comunicaciones inalámbricas, que comprende: transmitir (702), mediante un equipo de usuario, UE, una indicación de la posición del midámbulo, o una información de la capacidad del UE, o ambos, en el que al menos uno de la indicación de la posición del midámbulo o la información de la capacidad del UE indica una última posición para la posición del midámbulo dentro de una ranura en la cual el UE puede soportar utilizar un midámbulo al realizar la estimación del canal; y recibir (706), por el UE, una transmisión que incluyen una ranura transmitida que tiene un preámbulo y un midámbulo, en el que el midámbulo está en la posición del midámbulo dentro de la ranura según se determina basándose, al menos en parte, en al menos una de la indicación de la posición del midámbulo o la información de la capacidad del UE.

公开(公告)号：CA3014698C

公开(公告)日：2021-09-07

申请号：CA3014698

申请日：2017-03-21

Applicant: QUALCOMM INC

Inventor： MANOLAKOS ALEXANDROS ,  JIANG JING ,  NAMGOONG JUNE ,  LUO TAO ,  SORIAGA JOSEPH BINAMIRA ,  JI TINGFANG

IPC: H04L5/00

Abstract: Aspects of the present disclosure provide a wireless device that communicates with another wireless device utilizing self-contained subframes. The wireless device communicates with a scheduling entity utilizing a plurality of self-contained subframes that include a first subframe and a second subframe. Each of the self-contained subframes includes an uplink (UL) portion and a downlink (DL) portion. The wireless device further receives DL control information from the scheduling entity in the DL portion of the first subframe, and transmits UL data that includes a plurality of reference signal bursts to the scheduling entity in the UL portion of the first subframe. The plurality of reference signal bursts are uniformly spaced in at least a portion of the UL portion of the first subframe.

公开(公告)号：AU2017246211B2

公开(公告)日：2021-04-01

申请号：AU2017246211

申请日：2017-04-01

Applicant: QUALCOMM INC

Inventor： NAMGOONG JUNE ,  LUO TAO ,  MANOLAKOS ALEXANDROS ,  JIANG JING ,  YANG YANG ,  SORIAGA JOSEPH BINAMIRA ,  JI TINGFANG

IPC: H04L5/00

Abstract: Methods and apparatus for multiplexing reference signals for Multiple Input Multiple Output (MIMO) layers are provided. Resources for Demodulation Reference Signals (DMRS) corresponding to each of two or more data streams are assigned, wherein the resources assigned to each of the data streams are staggered in frequency and span two or more OFDM (Orthogonal Frequency Divisional Multiplexing) symbols. The DMRS is transmitted using the assigned resources.

公开(公告)号：SG11202006967RA

公开(公告)日：2020-08-28

申请号：SG11202006967R

申请日：2019-02-14

Applicant: QUALCOMM INC

Inventor： MANOLAKOS ALEXANDROS ,  YOO JAE WON ,  NAMGOONG JUNE ,  ANG PETER PUI LOK

IPC: H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a plurality of selectable physical resource block (PRB) bundle sizes. The UE may receive downlink control information (DCI) that does not include a PRB bundling size indicator that indicates a PRB bundle size to be selected from the plurality of selectable PRB bundle sizes. The UE may select a PRB bundle size, from the plurality of selectable PRB bundle sizes, despite the DCI not including the PRB bundling size indicator. Numerous other aspects are provided.

公开(公告)号：PH12018501718A1

公开(公告)日：2019-05-20

申请号：PH12018501718

申请日：2018-08-14

Applicant: QUALCOMM INC

Inventor： MANOLAKOS ALEXANDROS ,  JIANG JING ,  NAMGOONG JUNE ,  LUO TAO ,  SORIAGA JOSEPH BINAMIRA ,  JI TINGFANG

IPC: H04L5/00

Abstract: Aspects of the present disclosure provide a wireless device that communicates with another wireless device utilizing self-contained subframes. The wireless device communicates with a scheduling entity utilizing a plurality of self-contained subframes that include a first subframe and a second subframe. Each of the self-contained subframes includes an uplink (UL) portion and a downlink (DL) portion. The wireless device further receives DL control information from the scheduling entity in the DL portion of the first subframe, and transmits UL data that includes a plurality of reference signal bursts to the scheduling entity in the UL portion of the first subframe. The plurality of reference signal bursts are uniformly spaced in at least a portion of the UL portion of the first subframe.