公开(公告)号：AU2015287586A1

公开(公告)日：2017-01-05

申请号：AU2015287586

申请日：2015-07-10

Applicant: QUALCOMM INC

Inventor： WENTINK MAARTEN MENZO ,  MERLIN SIMONE ,  VAN ZELST ALBERT

IPC: H04L1/00 ,  H04W74/08

Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method of transmitting a physical layer convergence protocol data unit on a wireless medium includes generating a first portion and a second portion of the physical layer convergence protocol data unit, transmitting the first portion at a first data rate, the first portion decodable by a first and second sets of devices, and transmitting the second portion at a second data rate higher than the first data rate, the second portion decodable by the second set of devices.

公开(公告)号：AU2011299142B2

公开(公告)日：2015-11-26

申请号：AU2011299142

申请日：2011-09-08

Applicant: QUALCOMM INC

Inventor： VERMANI SAMEER ,  TANDRA RAHUL ,  VAN ZELST ALBERT ,  VAN NEE DIDIER JOHANNES RICHARD ,  SAMPATH HEMANTH ,  JONES IV VINCENT KNOWLES

IPC: H04B7/06 ,  H04B7/04 ,  H04L27/26

Abstract: Certain aspects of the present disclosure relate to techniques for transmitting sounding feedback in Very High Throughput (VHT) wireless systems. The sounding feedback may be transmitted from a user station (STA), wherein the feedback may comprise a certain number of beamforming matrices and a certain number of singular values of a wireless channel associated with the STA. Further, the sounding feedback may comprise a bit for indicating whether this feedback represents a Single-User (SU) feedback or a Multi-User (MU) feedback.

公开(公告)号：CA2933732A1

公开(公告)日：2015-07-30

申请号：CA2933732

申请日：2015-01-21

Applicant: QUALCOMM INC

Inventor： YANG LIN ,  VAN ZELST ALBERT ,  TIAN BIN ,  VERMANI SAMEER

IPC: H04B7/06

Abstract: Certain aspects of the present disclosure relate to techniques, methods, and apparatuses for generating pilot sequences for use in uplink (UL) multi-user multiple input-multiple output (MU-MIMO) transmissions.

公开(公告)号：AU2011299142A1

公开(公告)日：2013-03-28

申请号：AU2011299142

申请日：2011-09-08

Applicant: QUALCOMM INC

Inventor： VERMANI SAMEER ,  TANDRA RAHUL ,  VAN ZELST ALBERT ,  VAN NEE DIDIER JOHANNES RICHARD ,  SAMPATH HEMANTH ,  JONES IV VINCENT KNOWLES

IPC: H04B7/06 ,  H04B7/04 ,  H04L27/26

Abstract: Certain aspects of the present disclosure relate to techniques for transmitting sounding feedback in Very High Throughput (VHT) wireless systems. The sounding feedback may be transmitted from a user station (STA), wherein the feedback may comprise a certain number of beamforming matrices and a certain number of singular values of a wireless channel associated with the STA. Further, the sounding feedback may comprise a bit for indicating whether this feedback represents a Single-User (SU) feedback or a Multi-User (MU) feedback.

公开(公告)号：CA2695206A1

公开(公告)日：2009-03-05

申请号：CA2695206

申请日：2008-08-28

Applicant: QUALCOMM INC

Inventor： VAN ZELST ALBERT ,  WONG BRIAN ,  VAN NEE DIDIER JOHANNES RICHARD ,  JONES IV VINCENT K ,  AWATER GEERT ARNOUT

IPC: H04B7/04 ,  H04L1/06 ,  H04L25/02

Abstract: Systems and methodologies are described that provide low-complexity soft-output detection for MIMO communication systems. Looping can be performed over a set of constellation points per spatial stream to obtain distance metrics for each of a series of transmitted streams, for which values for the other transmitted streams can be estimated using a MIMO channel matrix and a sub-optimal MIMO algorithm. Examples of MIMO algorithms that can be utilized include Per-Stream List Detection (PSLD), Lattice-Reduced Detection (LRD), and a Guided-M Algorithm. Performance can be further improved by pre-processing the MIMO channel matrix and/or by utilizing techniques for Enhanced Metric Usage (EMU).

公开(公告)号：BR112016020636A8

公开(公告)日：2021-07-06

申请号：BR112016020636

申请日：2015-03-12

Applicant: QUALCOMM INC

Inventor： TIAN BIN ,  VERMANI SAMEER ,  VAN ZELST ALBERT ,  VAN NEE DIDIER JOHANNES RICHARD

IPC: H04L1/18

Abstract: relaxamento de tempo de resposta for high efficiency wlan. os aspectos da presente revelação se referem a técnicas para gerar respostas para quadros de comprimento estendido que têm comprimentos de símbolo aumentados sem alterar a curta duração de espaço interquadro. de acordo com determinados aspectos, um método para transmitir um quadro de comprimento estendido inclui, em geral, gerar um pacote que tem um preâmbulo decodificável através de um primeiro tipo de dispositivo que tem um primeiro conjunto de capacidades e um segundo tipo de dispositivo que tem um segundo conjunto de capacidades, em que pelo menos uma primeira porção do pacote é gerada com o uso de uma duração de símbolo aumentada ou prefixo cíclico aumentado em relação a uma segunda porção do pacote gerada com o uso de uma duração de símbolo padrão ou prefixo cíclico padrão e o pacote inclui símbolos de preenchimento após a primeira porção, e emitir o pacote gerado para a transmissão.

公开(公告)号：HUE044976T2

公开(公告)日：2019-12-30

申请号：HUE11727581

申请日：2011-06-02

Applicant: QUALCOMM INC

Inventor： VAN NEE DIDIER JOHANNES RICHARD ,  VAN ZELST ALBERT

IPC: H04L27/26

公开(公告)号：HUE039144T2

公开(公告)日：2018-12-28

申请号：HUE11757518

申请日：2011-09-08

Applicant: QUALCOMM INC

Inventor： VERMANI SAMEER ,  TANDRA RAHUL ,  VAN ZELST ALBERT ,  VAN NEE DIDIER ,  SAMPATH HEMANTH ,  JONES IV VINCENT KNOWLES

IPC: H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26

公开(公告)号：HUE036139T2

公开(公告)日：2018-06-28

申请号：HUE11738908

申请日：2011-07-20

Applicant: QUALCOMM INC

Inventor： VAN ZELST ALBERT ,  JONES IV VINCENT ,  SAMPATH HEMANTH

IPC: H04L5/00

公开(公告)号：TN2016000236A1

公开(公告)日：2017-10-06

申请号：TN2016000236

申请日：2015-01-21

Applicant: QUALCOMM INC

Inventor： TIAN BIN ,  VAN ZELST ALBERT ,  VERMANI SAMEER ,  YANG LIN

IPC: H04B7/06

Abstract: Certain aspects of the present disclosure relate to techniques, methods, and apparatuses for generating pilot sequences for use in uplink (UL) multi-user multiple input-multiple output (MU-MIMO) transmissions.